/******************************************************************************
*
- * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
#include <asm/div64.h>
-#include "iwl-4965.h"
+#include "iwl-eeprom.h"
+#include "iwl-dev.h"
+#include "iwl-core.h"
+#include "iwl-io.h"
#include "iwl-helpers.h"
+#include "iwl-sta.h"
+#include "iwl-calib.h"
-#ifdef CONFIG_IWL4965_DEBUG
-u32 iwl4965_debug_level;
-#endif
-
-static int iwl4965_tx_queue_update_write_ptr(struct iwl4965_priv *priv,
- struct iwl4965_tx_queue *txq);
/******************************************************************************
*
*
******************************************************************************/
-/* module parameters */
-static int iwl4965_param_disable_hw_scan; /* def: 0 = use 4965's h/w scan */
-static int iwl4965_param_debug; /* def: 0 = minimal debug log messages */
-static int iwl4965_param_disable; /* def: enable radio */
-static int iwl4965_param_antenna; /* def: 0 = both antennas (use diversity) */
-int iwl4965_param_hwcrypto; /* def: using software encryption */
-static int iwl4965_param_qos_enable = 1; /* def: 1 = use quality of service */
-int iwl4965_param_queues_num = IWL_MAX_NUM_QUEUES; /* def: 16 Tx queues */
-int iwl4965_param_amsdu_size_8K; /* def: enable 8K amsdu size */
-
/*
* module name, copyright, version, etc.
* NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
-#ifdef CONFIG_IWL4965_DEBUG
+#ifdef CONFIG_IWLWIFI_DEBUG
#define VD "d"
#else
#define VD
#define VS
#endif
-#define IWLWIFI_VERSION "1.2.23k" VD VS
-#define DRV_COPYRIGHT "Copyright(c) 2003-2007 Intel Corporation"
-#define DRV_VERSION IWLWIFI_VERSION
+#define DRV_VERSION IWLWIFI_VERSION VD VS
-/* Change firmware file name, using "-" and incrementing number,
- * *only* when uCode interface or architecture changes so that it
- * is not compatible with earlier drivers.
- * This number will also appear in << 8 position of 1st dword of uCode file */
-#define IWL4965_UCODE_API "-1"
MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_VERSION(DRV_VERSION);
MODULE_AUTHOR(DRV_COPYRIGHT);
MODULE_LICENSE("GPL");
-__le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr)
-{
- u16 fc = le16_to_cpu(hdr->frame_control);
- int hdr_len = ieee80211_get_hdrlen(fc);
+/*************** STATION TABLE MANAGEMENT ****
+ * mac80211 should be examined to determine if sta_info is duplicating
+ * the functionality provided here
+ */
+
+/**************************************************************/
+
- if ((fc & 0x00cc) == (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA))
- return (__le16 *) ((u8 *) hdr + hdr_len - QOS_CONTROL_LEN);
- return NULL;
-}
-static const struct ieee80211_hw_mode *iwl4965_get_hw_mode(
- struct iwl4965_priv *priv, int mode)
+static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
{
- int i;
+ struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
- for (i = 0; i < 3; i++)
- if (priv->modes[i].mode == mode)
- return &priv->modes[i];
+ if (hw_decrypt)
+ rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
+ else
+ rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
- return NULL;
}
-static int iwl4965_is_empty_essid(const char *essid, int essid_len)
+/**
+ * iwl4965_check_rxon_cmd - validate RXON structure is valid
+ *
+ * NOTE: This is really only useful during development and can eventually
+ * be #ifdef'd out once the driver is stable and folks aren't actively
+ * making changes
+ */
+static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon)
{
- /* Single white space is for Linksys APs */
- if (essid_len == 1 && essid[0] == ' ')
- return 1;
+ int error = 0;
+ int counter = 1;
- /* Otherwise, if the entire essid is 0, we assume it is hidden */
- while (essid_len) {
- essid_len--;
- if (essid[essid_len] != '\0')
- return 0;
+ if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
+ error |= le32_to_cpu(rxon->flags &
+ (RXON_FLG_TGJ_NARROW_BAND_MSK |
+ RXON_FLG_RADAR_DETECT_MSK));
+ if (error)
+ IWL_WARNING("check 24G fields %d | %d\n",
+ counter++, error);
+ } else {
+ error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
+ 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
+ if (error)
+ IWL_WARNING("check 52 fields %d | %d\n",
+ counter++, error);
+ error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
+ if (error)
+ IWL_WARNING("check 52 CCK %d | %d\n",
+ counter++, error);
}
+ error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
+ if (error)
+ IWL_WARNING("check mac addr %d | %d\n", counter++, error);
- return 1;
-}
+ /* make sure basic rates 6Mbps and 1Mbps are supported */
+ error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
+ ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
+ if (error)
+ IWL_WARNING("check basic rate %d | %d\n", counter++, error);
-static const char *iwl4965_escape_essid(const char *essid, u8 essid_len)
-{
- static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
- const char *s = essid;
- char *d = escaped;
-
- if (iwl4965_is_empty_essid(essid, essid_len)) {
- memcpy(escaped, "<hidden>", sizeof("<hidden>"));
- return escaped;
- }
-
- essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
- while (essid_len--) {
- if (*s == '\0') {
- *d++ = '\\';
- *d++ = '0';
- s++;
- } else
- *d++ = *s++;
- }
- *d = '\0';
- return escaped;
-}
+ error |= (le16_to_cpu(rxon->assoc_id) > 2007);
+ if (error)
+ IWL_WARNING("check assoc id %d | %d\n", counter++, error);
-static void iwl4965_print_hex_dump(int level, void *p, u32 len)
-{
-#ifdef CONFIG_IWL4965_DEBUG
- if (!(iwl4965_debug_level & level))
- return;
+ error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
+ == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
+ if (error)
+ IWL_WARNING("check CCK and short slot %d | %d\n",
+ counter++, error);
- print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
- p, len, 1);
-#endif
-}
+ error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
+ == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
+ if (error)
+ IWL_WARNING("check CCK & auto detect %d | %d\n",
+ counter++, error);
-/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
- * DMA services
- *
- * Theory of operation
- *
- * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
- * of buffer descriptors, each of which points to one or more data buffers for
- * the device to read from or fill. Driver and device exchange status of each
- * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
- * entries in each circular buffer, to protect against confusing empty and full
- * queue states.
- *
- * The device reads or writes the data in the queues via the device's several
- * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
- *
- * For Tx queue, there are low mark and high mark limits. If, after queuing
- * the packet for Tx, free space become < low mark, Tx queue stopped. When
- * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
- * Tx queue resumed.
- *
- * The 4965 operates with up to 17 queues: One receive queue, one transmit
- * queue (#4) for sending commands to the device firmware, and 15 other
- * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
- *
- * See more detailed info in iwl-4965-hw.h.
- ***************************************************/
+ error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
+ RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
+ if (error)
+ IWL_WARNING("check TGG and auto detect %d | %d\n",
+ counter++, error);
-static int iwl4965_queue_space(const struct iwl4965_queue *q)
-{
- int s = q->read_ptr - q->write_ptr;
-
- if (q->read_ptr > q->write_ptr)
- s -= q->n_bd;
-
- if (s <= 0)
- s += q->n_window;
- /* keep some reserve to not confuse empty and full situations */
- s -= 2;
- if (s < 0)
- s = 0;
- return s;
-}
+ if (error)
+ IWL_WARNING("Tuning to channel %d\n",
+ le16_to_cpu(rxon->channel));
-/**
- * iwl4965_queue_inc_wrap - increment queue index, wrap back to beginning
- * @index -- current index
- * @n_bd -- total number of entries in queue (must be power of 2)
- */
-static inline int iwl4965_queue_inc_wrap(int index, int n_bd)
-{
- return ++index & (n_bd - 1);
+ if (error) {
+ IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
+ return -1;
+ }
+ return 0;
}
/**
- * iwl4965_queue_dec_wrap - decrement queue index, wrap back to end
- * @index -- current index
- * @n_bd -- total number of entries in queue (must be power of 2)
+ * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
+ * @priv: staging_rxon is compared to active_rxon
+ *
+ * If the RXON structure is changing enough to require a new tune,
+ * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
+ * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
*/
-static inline int iwl4965_queue_dec_wrap(int index, int n_bd)
+static int iwl4965_full_rxon_required(struct iwl_priv *priv)
{
- return --index & (n_bd - 1);
-}
-static inline int x2_queue_used(const struct iwl4965_queue *q, int i)
-{
- return q->write_ptr > q->read_ptr ?
- (i >= q->read_ptr && i < q->write_ptr) :
- !(i < q->read_ptr && i >= q->write_ptr);
-}
+ /* These items are only settable from the full RXON command */
+ if (!(iwl_is_associated(priv)) ||
+ compare_ether_addr(priv->staging_rxon.bssid_addr,
+ priv->active_rxon.bssid_addr) ||
+ compare_ether_addr(priv->staging_rxon.node_addr,
+ priv->active_rxon.node_addr) ||
+ compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
+ priv->active_rxon.wlap_bssid_addr) ||
+ (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
+ (priv->staging_rxon.channel != priv->active_rxon.channel) ||
+ (priv->staging_rxon.air_propagation !=
+ priv->active_rxon.air_propagation) ||
+ (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
+ priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
+ (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
+ priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
+ (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) ||
+ (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
+ return 1;
-static inline u8 get_cmd_index(struct iwl4965_queue *q, u32 index, int is_huge)
-{
- /* This is for scan command, the big buffer at end of command array */
- if (is_huge)
- return q->n_window; /* must be power of 2 */
+ /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
+ * be updated with the RXON_ASSOC command -- however only some
+ * flag transitions are allowed using RXON_ASSOC */
+
+ /* Check if we are not switching bands */
+ if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
+ (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
+ return 1;
+
+ /* Check if we are switching association toggle */
+ if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
+ (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
+ return 1;
- /* Otherwise, use normal size buffers */
- return index & (q->n_window - 1);
+ return 0;
}
/**
- * iwl4965_queue_init - Initialize queue's high/low-water and read/write indexes
+ * iwl4965_commit_rxon - commit staging_rxon to hardware
+ *
+ * The RXON command in staging_rxon is committed to the hardware and
+ * the active_rxon structure is updated with the new data. This
+ * function correctly transitions out of the RXON_ASSOC_MSK state if
+ * a HW tune is required based on the RXON structure changes.
*/
-static int iwl4965_queue_init(struct iwl4965_priv *priv, struct iwl4965_queue *q,
- int count, int slots_num, u32 id)
+static int iwl4965_commit_rxon(struct iwl_priv *priv)
{
- q->n_bd = count;
- q->n_window = slots_num;
- q->id = id;
+ /* cast away the const for active_rxon in this function */
+ struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
+ DECLARE_MAC_BUF(mac);
+ int ret;
+ bool new_assoc =
+ !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
- /* count must be power-of-two size, otherwise iwl4965_queue_inc_wrap
- * and iwl4965_queue_dec_wrap are broken. */
- BUG_ON(!is_power_of_2(count));
+ if (!iwl_is_alive(priv))
+ return -EBUSY;
- /* slots_num must be power-of-two size, otherwise
- * get_cmd_index is broken. */
- BUG_ON(!is_power_of_2(slots_num));
+ /* always get timestamp with Rx frame */
+ priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
- q->low_mark = q->n_window / 4;
- if (q->low_mark < 4)
- q->low_mark = 4;
+ ret = iwl4965_check_rxon_cmd(&priv->staging_rxon);
+ if (ret) {
+ IWL_ERROR("Invalid RXON configuration. Not committing.\n");
+ return -EINVAL;
+ }
- q->high_mark = q->n_window / 8;
- if (q->high_mark < 2)
- q->high_mark = 2;
+ /* If we don't need to send a full RXON, we can use
+ * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
+ * and other flags for the current radio configuration. */
+ if (!iwl4965_full_rxon_required(priv)) {
+ ret = iwl_send_rxon_assoc(priv);
+ if (ret) {
+ IWL_ERROR("Error setting RXON_ASSOC (%d)\n", ret);
+ return ret;
+ }
- q->write_ptr = q->read_ptr = 0;
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+ return 0;
+ }
- return 0;
-}
+ /* station table will be cleared */
+ priv->assoc_station_added = 0;
-/**
- * iwl4965_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
- */
-static int iwl4965_tx_queue_alloc(struct iwl4965_priv *priv,
- struct iwl4965_tx_queue *txq, u32 id)
-{
- struct pci_dev *dev = priv->pci_dev;
-
- /* Driver private data, only for Tx (not command) queues,
- * not shared with device. */
- if (id != IWL_CMD_QUEUE_NUM) {
- txq->txb = kmalloc(sizeof(txq->txb[0]) *
- TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
- if (!txq->txb) {
- IWL_ERROR("kmalloc for auxiliary BD "
- "structures failed\n");
- goto error;
- }
- } else
- txq->txb = NULL;
+ /* If we are currently associated and the new config requires
+ * an RXON_ASSOC and the new config wants the associated mask enabled,
+ * we must clear the associated from the active configuration
+ * before we apply the new config */
+ if (iwl_is_associated(priv) && new_assoc) {
+ IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- /* Circular buffer of transmit frame descriptors (TFDs),
- * shared with device */
- txq->bd = pci_alloc_consistent(dev,
- sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX,
- &txq->q.dma_addr);
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl_rxon_cmd),
+ &priv->active_rxon);
- if (!txq->bd) {
- IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
- sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX);
- goto error;
+ /* If the mask clearing failed then we set
+ * active_rxon back to what it was previously */
+ if (ret) {
+ active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
+ IWL_ERROR("Error clearing ASSOC_MSK (%d)\n", ret);
+ return ret;
+ }
}
- txq->q.id = id;
- return 0;
+ IWL_DEBUG_INFO("Sending RXON\n"
+ "* with%s RXON_FILTER_ASSOC_MSK\n"
+ "* channel = %d\n"
+ "* bssid = %s\n",
+ (new_assoc ? "" : "out"),
+ le16_to_cpu(priv->staging_rxon.channel),
+ print_mac(mac, priv->staging_rxon.bssid_addr));
- error:
- if (txq->txb) {
- kfree(txq->txb);
- txq->txb = NULL;
- }
+ iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
- return -ENOMEM;
-}
+ /* Apply the new configuration
+ * RXON unassoc clears the station table in uCode, send it before
+ * we add the bcast station. If assoc bit is set, we will send RXON
+ * after having added the bcast and bssid station.
+ */
+ if (!new_assoc) {
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
+ if (ret) {
+ IWL_ERROR("Error setting new RXON (%d)\n", ret);
+ return ret;
+ }
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+ }
-/**
- * iwl4965_tx_queue_init - Allocate and initialize one tx/cmd queue
- */
-int iwl4965_tx_queue_init(struct iwl4965_priv *priv,
- struct iwl4965_tx_queue *txq, int slots_num, u32 txq_id)
-{
- struct pci_dev *dev = priv->pci_dev;
- int len;
- int rc = 0;
+ iwl_clear_stations_table(priv);
- /*
- * Alloc buffer array for commands (Tx or other types of commands).
- * For the command queue (#4), allocate command space + one big
- * command for scan, since scan command is very huge; the system will
- * not have two scans at the same time, so only one is needed.
- * For normal Tx queues (all other queues), no super-size command
- * space is needed.
- */
- len = sizeof(struct iwl4965_cmd) * slots_num;
- if (txq_id == IWL_CMD_QUEUE_NUM)
- len += IWL_MAX_SCAN_SIZE;
- txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd);
- if (!txq->cmd)
- return -ENOMEM;
+ if (!priv->error_recovering)
+ priv->start_calib = 0;
- /* Alloc driver data array and TFD circular buffer */
- rc = iwl4965_tx_queue_alloc(priv, txq, txq_id);
- if (rc) {
- pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+ iwl_init_sensitivity(priv);
- return -ENOMEM;
+ /* If we issue a new RXON command which required a tune then we must
+ * send a new TXPOWER command or we won't be able to Tx any frames */
+ ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
+ if (ret) {
+ IWL_ERROR("Error sending TX power (%d)\n", ret);
+ return ret;
}
- txq->need_update = 0;
- /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
- * iwl4965_queue_inc_wrap and iwl4965_queue_dec_wrap are broken. */
- BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
+ /* Add the broadcast address so we can send broadcast frames */
+ if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
+ IWL_INVALID_STATION) {
+ IWL_ERROR("Error adding BROADCAST address for transmit.\n");
+ return -EIO;
+ }
- /* Initialize queue's high/low-water marks, and head/tail indexes */
- iwl4965_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
+ /* If we have set the ASSOC_MSK and we are in BSS mode then
+ * add the IWL_AP_ID to the station rate table */
+ if (new_assoc) {
+ if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
+ ret = iwl_rxon_add_station(priv,
+ priv->active_rxon.bssid_addr, 1);
+ if (ret == IWL_INVALID_STATION) {
+ IWL_ERROR("Error adding AP address for TX.\n");
+ return -EIO;
+ }
+ priv->assoc_station_added = 1;
+ if (priv->default_wep_key &&
+ iwl_send_static_wepkey_cmd(priv, 0))
+ IWL_ERROR("Could not send WEP static key.\n");
+ }
- /* Tell device where to find queue */
- iwl4965_hw_tx_queue_init(priv, txq);
+ /* Apply the new configuration
+ * RXON assoc doesn't clear the station table in uCode,
+ */
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
+ if (ret) {
+ IWL_ERROR("Error setting new RXON (%d)\n", ret);
+ return ret;
+ }
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+ }
return 0;
}
-/**
- * iwl4965_tx_queue_free - Deallocate DMA queue.
- * @txq: Transmit queue to deallocate.
- *
- * Empty queue by removing and destroying all BD's.
- * Free all buffers.
- * 0-fill, but do not free "txq" descriptor structure.
- */
-void iwl4965_tx_queue_free(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq)
+void iwl4965_update_chain_flags(struct iwl_priv *priv)
{
- struct iwl4965_queue *q = &txq->q;
- struct pci_dev *dev = priv->pci_dev;
- int len;
- if (q->n_bd == 0)
- return;
+ iwl_set_rxon_chain(priv);
+ iwl4965_commit_rxon(priv);
+}
- /* first, empty all BD's */
- for (; q->write_ptr != q->read_ptr;
- q->read_ptr = iwl4965_queue_inc_wrap(q->read_ptr, q->n_bd))
- iwl4965_hw_txq_free_tfd(priv, txq);
+static int iwl4965_send_bt_config(struct iwl_priv *priv)
+{
+ struct iwl4965_bt_cmd bt_cmd = {
+ .flags = 3,
+ .lead_time = 0xAA,
+ .max_kill = 1,
+ .kill_ack_mask = 0,
+ .kill_cts_mask = 0,
+ };
- len = sizeof(struct iwl4965_cmd) * q->n_window;
- if (q->id == IWL_CMD_QUEUE_NUM)
- len += IWL_MAX_SCAN_SIZE;
+ return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ sizeof(struct iwl4965_bt_cmd), &bt_cmd);
+}
- /* De-alloc array of command/tx buffers */
- pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+static void iwl_clear_free_frames(struct iwl_priv *priv)
+{
+ struct list_head *element;
- /* De-alloc circular buffer of TFDs */
- if (txq->q.n_bd)
- pci_free_consistent(dev, sizeof(struct iwl4965_tfd_frame) *
- txq->q.n_bd, txq->bd, txq->q.dma_addr);
+ IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
+ priv->frames_count);
- /* De-alloc array of per-TFD driver data */
- if (txq->txb) {
- kfree(txq->txb);
- txq->txb = NULL;
+ while (!list_empty(&priv->free_frames)) {
+ element = priv->free_frames.next;
+ list_del(element);
+ kfree(list_entry(element, struct iwl_frame, list));
+ priv->frames_count--;
}
- /* 0-fill queue descriptor structure */
- memset(txq, 0, sizeof(*txq));
-}
-
-const u8 iwl4965_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-
-/*************** STATION TABLE MANAGEMENT ****
- * mac80211 should be examined to determine if sta_info is duplicating
- * the functionality provided here
- */
-
-/**************************************************************/
+ if (priv->frames_count) {
+ IWL_WARNING("%d frames still in use. Did we lose one?\n",
+ priv->frames_count);
+ priv->frames_count = 0;
+ }
+}
-#if 0 /* temporary disable till we add real remove station */
-/**
- * iwl4965_remove_station - Remove driver's knowledge of station.
- *
- * NOTE: This does not remove station from device's station table.
- */
-static u8 iwl4965_remove_station(struct iwl4965_priv *priv, const u8 *addr, int is_ap)
+static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
{
- int index = IWL_INVALID_STATION;
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- if (is_ap)
- index = IWL_AP_ID;
- else if (is_broadcast_ether_addr(addr))
- index = priv->hw_setting.bcast_sta_id;
- else
- for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++)
- if (priv->stations[i].used &&
- !compare_ether_addr(priv->stations[i].sta.sta.addr,
- addr)) {
- index = i;
- break;
- }
-
- if (unlikely(index == IWL_INVALID_STATION))
- goto out;
+ struct iwl_frame *frame;
+ struct list_head *element;
+ if (list_empty(&priv->free_frames)) {
+ frame = kzalloc(sizeof(*frame), GFP_KERNEL);
+ if (!frame) {
+ IWL_ERROR("Could not allocate frame!\n");
+ return NULL;
+ }
- if (priv->stations[index].used) {
- priv->stations[index].used = 0;
- priv->num_stations--;
+ priv->frames_count++;
+ return frame;
}
- BUG_ON(priv->num_stations < 0);
+ element = priv->free_frames.next;
+ list_del(element);
+ return list_entry(element, struct iwl_frame, list);
+}
-out:
- spin_unlock_irqrestore(&priv->sta_lock, flags);
- return 0;
+static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+ list_add(&frame->list, &priv->free_frames);
}
-#endif
-/**
- * iwl4965_clear_stations_table - Clear the driver's station table
- *
- * NOTE: This does not clear or otherwise alter the device's station table.
- */
-static void iwl4965_clear_stations_table(struct iwl4965_priv *priv)
+unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
+ struct ieee80211_hdr *hdr,
+ const u8 *dest, int left)
{
- unsigned long flags;
- spin_lock_irqsave(&priv->sta_lock, flags);
+ if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
+ ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
+ (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
+ return 0;
- priv->num_stations = 0;
- memset(priv->stations, 0, sizeof(priv->stations));
+ if (priv->ibss_beacon->len > left)
+ return 0;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
+ memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
+
+ return priv->ibss_beacon->len;
}
-/**
- * iwl4965_add_station_flags - Add station to tables in driver and device
- */
-u8 iwl4965_add_station_flags(struct iwl4965_priv *priv, const u8 *addr,
- int is_ap, u8 flags, void *ht_data)
+static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv)
{
int i;
- int index = IWL_INVALID_STATION;
- struct iwl4965_station_entry *station;
- unsigned long flags_spin;
- DECLARE_MAC_BUF(mac);
+ int rate_mask;
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- if (is_ap)
- index = IWL_AP_ID;
- else if (is_broadcast_ether_addr(addr))
- index = priv->hw_setting.bcast_sta_id;
+ /* Set rate mask*/
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
+ rate_mask = priv->active_rate_basic & 0xF;
else
- for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) {
- if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
- addr)) {
- index = i;
- break;
- }
-
- if (!priv->stations[i].used &&
- index == IWL_INVALID_STATION)
- index = i;
- }
+ rate_mask = priv->active_rate_basic & 0xFF0;
-
- /* These two conditions have the same outcome, but keep them separate
- since they have different meanings */
- if (unlikely(index == IWL_INVALID_STATION)) {
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
- return index;
+ /* Find lowest valid rate */
+ for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
+ i = iwl_rates[i].next_ieee) {
+ if (rate_mask & (1 << i))
+ return iwl_rates[i].plcp;
}
- if (priv->stations[index].used &&
- !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) {
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
- return index;
- }
+ /* No valid rate was found. Assign the lowest one */
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
+ return IWL_RATE_1M_PLCP;
+ else
+ return IWL_RATE_6M_PLCP;
+}
+
+static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
+{
+ struct iwl_frame *frame;
+ unsigned int frame_size;
+ int rc;
+ u8 rate;
+ frame = iwl_get_free_frame(priv);
- IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr));
- station = &priv->stations[index];
- station->used = 1;
- priv->num_stations++;
+ if (!frame) {
+ IWL_ERROR("Could not obtain free frame buffer for beacon "
+ "command.\n");
+ return -ENOMEM;
+ }
- /* Set up the REPLY_ADD_STA command to send to device */
- memset(&station->sta, 0, sizeof(struct iwl4965_addsta_cmd));
- memcpy(station->sta.sta.addr, addr, ETH_ALEN);
- station->sta.mode = 0;
- station->sta.sta.sta_id = index;
- station->sta.station_flags = 0;
+ rate = iwl4965_rate_get_lowest_plcp(priv);
-#ifdef CONFIG_IWL4965_HT
- /* BCAST station and IBSS stations do not work in HT mode */
- if (index != priv->hw_setting.bcast_sta_id &&
- priv->iw_mode != IEEE80211_IF_TYPE_IBSS)
- iwl4965_set_ht_add_station(priv, index,
- (struct ieee80211_ht_info *) ht_data);
-#endif /*CONFIG_IWL4965_HT*/
+ frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate);
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
+ &frame->u.cmd[0]);
- /* Add station to device's station table */
- iwl4965_send_add_station(priv, &station->sta, flags);
- return index;
+ iwl_free_frame(priv, frame);
+ return rc;
}
-/*************** DRIVER STATUS FUNCTIONS *****/
+/******************************************************************************
+ *
+ * Misc. internal state and helper functions
+ *
+ ******************************************************************************/
-static inline int iwl4965_is_ready(struct iwl4965_priv *priv)
+static void iwl4965_ht_conf(struct iwl_priv *priv,
+ struct ieee80211_bss_conf *bss_conf)
{
- /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
- * set but EXIT_PENDING is not */
- return test_bit(STATUS_READY, &priv->status) &&
- test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
- !test_bit(STATUS_EXIT_PENDING, &priv->status);
-}
+ struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
+ struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
+ struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
-static inline int iwl4965_is_alive(struct iwl4965_priv *priv)
-{
- return test_bit(STATUS_ALIVE, &priv->status);
-}
+ IWL_DEBUG_MAC80211("enter: \n");
-static inline int iwl4965_is_init(struct iwl4965_priv *priv)
-{
- return test_bit(STATUS_INIT, &priv->status);
-}
+ iwl_conf->is_ht = bss_conf->assoc_ht;
-static inline int iwl4965_is_rfkill(struct iwl4965_priv *priv)
-{
- return test_bit(STATUS_RF_KILL_HW, &priv->status) ||
- test_bit(STATUS_RF_KILL_SW, &priv->status);
-}
+ if (!iwl_conf->is_ht)
+ return;
-static inline int iwl4965_is_ready_rf(struct iwl4965_priv *priv)
-{
+ priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
- if (iwl4965_is_rfkill(priv))
- return 0;
+ if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
+ iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
+ if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
+ iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
- return iwl4965_is_ready(priv);
-}
+ iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
+ iwl_conf->max_amsdu_size =
+ !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
-/*************** HOST COMMAND QUEUE FUNCTIONS *****/
+ iwl_conf->supported_chan_width =
+ !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
+ iwl_conf->extension_chan_offset =
+ ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
+ /* If no above or below channel supplied disable FAT channel */
+ if (iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_ABOVE &&
+ iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_BELOW) {
+ iwl_conf->extension_chan_offset = IEEE80211_HT_IE_CHA_SEC_NONE;
+ iwl_conf->supported_chan_width = 0;
+ }
-#define IWL_CMD(x) case x : return #x
+ iwl_conf->tx_mimo_ps_mode =
+ (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
+ memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
-static const char *get_cmd_string(u8 cmd)
-{
- switch (cmd) {
- IWL_CMD(REPLY_ALIVE);
- IWL_CMD(REPLY_ERROR);
- IWL_CMD(REPLY_RXON);
- IWL_CMD(REPLY_RXON_ASSOC);
- IWL_CMD(REPLY_QOS_PARAM);
- IWL_CMD(REPLY_RXON_TIMING);
- IWL_CMD(REPLY_ADD_STA);
- IWL_CMD(REPLY_REMOVE_STA);
- IWL_CMD(REPLY_REMOVE_ALL_STA);
- IWL_CMD(REPLY_TX);
- IWL_CMD(REPLY_RATE_SCALE);
- IWL_CMD(REPLY_LEDS_CMD);
- IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
- IWL_CMD(RADAR_NOTIFICATION);
- IWL_CMD(REPLY_QUIET_CMD);
- IWL_CMD(REPLY_CHANNEL_SWITCH);
- IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
- IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
- IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
- IWL_CMD(POWER_TABLE_CMD);
- IWL_CMD(PM_SLEEP_NOTIFICATION);
- IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
- IWL_CMD(REPLY_SCAN_CMD);
- IWL_CMD(REPLY_SCAN_ABORT_CMD);
- IWL_CMD(SCAN_START_NOTIFICATION);
- IWL_CMD(SCAN_RESULTS_NOTIFICATION);
- IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
- IWL_CMD(BEACON_NOTIFICATION);
- IWL_CMD(REPLY_TX_BEACON);
- IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
- IWL_CMD(QUIET_NOTIFICATION);
- IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
- IWL_CMD(MEASURE_ABORT_NOTIFICATION);
- IWL_CMD(REPLY_BT_CONFIG);
- IWL_CMD(REPLY_STATISTICS_CMD);
- IWL_CMD(STATISTICS_NOTIFICATION);
- IWL_CMD(REPLY_CARD_STATE_CMD);
- IWL_CMD(CARD_STATE_NOTIFICATION);
- IWL_CMD(MISSED_BEACONS_NOTIFICATION);
- IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
- IWL_CMD(SENSITIVITY_CMD);
- IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
- IWL_CMD(REPLY_RX_PHY_CMD);
- IWL_CMD(REPLY_RX_MPDU_CMD);
- IWL_CMD(REPLY_4965_RX);
- IWL_CMD(REPLY_COMPRESSED_BA);
- default:
- return "UNKNOWN";
+ iwl_conf->control_channel = ht_bss_conf->primary_channel;
+ iwl_conf->tx_chan_width =
+ !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
+ iwl_conf->ht_protection =
+ ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
+ iwl_conf->non_GF_STA_present =
+ !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
- }
+ IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
+ IWL_DEBUG_MAC80211("leave\n");
}
-#define HOST_COMPLETE_TIMEOUT (HZ / 2)
+/*
+ * QoS support
+*/
+static int iwl4965_send_qos_params_command(struct iwl_priv *priv,
+ struct iwl4965_qosparam_cmd *qos)
+{
+
+ return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM,
+ sizeof(struct iwl4965_qosparam_cmd), qos);
+}
-/**
- * iwl4965_enqueue_hcmd - enqueue a uCode command
- * @priv: device private data point
- * @cmd: a point to the ucode command structure
- *
- * The function returns < 0 values to indicate the operation is
- * failed. On success, it turns the index (> 0) of command in the
- * command queue.
- */
-static int iwl4965_enqueue_hcmd(struct iwl4965_priv *priv, struct iwl4965_host_cmd *cmd)
+static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force)
{
- struct iwl4965_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
- struct iwl4965_queue *q = &txq->q;
- struct iwl4965_tfd_frame *tfd;
- u32 *control_flags;
- struct iwl4965_cmd *out_cmd;
- u32 idx;
- u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
- dma_addr_t phys_addr;
- int ret;
unsigned long flags;
- /* If any of the command structures end up being larger than
- * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
- * we will need to increase the size of the TFD entries */
- BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
- !(cmd->meta.flags & CMD_SIZE_HUGE));
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
- if (iwl4965_is_rfkill(priv)) {
- IWL_DEBUG_INFO("Not sending command - RF KILL");
- return -EIO;
- }
+ if (!priv->qos_data.qos_enable)
+ return;
- if (iwl4965_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
- IWL_ERROR("No space for Tx\n");
- return -ENOSPC;
- }
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->qos_data.def_qos_parm.qos_flags = 0;
- spin_lock_irqsave(&priv->hcmd_lock, flags);
+ if (priv->qos_data.qos_cap.q_AP.queue_request &&
+ !priv->qos_data.qos_cap.q_AP.txop_request)
+ priv->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_TXOP_TYPE_MSK;
+ if (priv->qos_data.qos_active)
+ priv->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_UPDATE_EDCA_MSK;
- tfd = &txq->bd[q->write_ptr];
- memset(tfd, 0, sizeof(*tfd));
+ if (priv->current_ht_config.is_ht)
+ priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
- control_flags = (u32 *) tfd;
+ spin_unlock_irqrestore(&priv->lock, flags);
- idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
- out_cmd = &txq->cmd[idx];
+ if (force || iwl_is_associated(priv)) {
+ IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
+ priv->qos_data.qos_active,
+ priv->qos_data.def_qos_parm.qos_flags);
- out_cmd->hdr.cmd = cmd->id;
- memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
- memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
+ iwl4965_send_qos_params_command(priv,
+ &(priv->qos_data.def_qos_parm));
+ }
+}
- /* At this point, the out_cmd now has all of the incoming cmd
- * information */
+#define MAX_UCODE_BEACON_INTERVAL 4096
+#define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
- out_cmd->hdr.flags = 0;
- out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
- INDEX_TO_SEQ(q->write_ptr));
- if (out_cmd->meta.flags & CMD_SIZE_HUGE)
- out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME);
+static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val)
+{
+ u16 new_val = 0;
+ u16 beacon_factor = 0;
- phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx +
- offsetof(struct iwl4965_cmd, hdr);
- iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
+ beacon_factor =
+ (beacon_val + MAX_UCODE_BEACON_INTERVAL)
+ / MAX_UCODE_BEACON_INTERVAL;
+ new_val = beacon_val / beacon_factor;
- IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
- "%d bytes at %d[%d]:%d\n",
- get_cmd_string(out_cmd->hdr.cmd),
- out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
- fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
+ return cpu_to_le16(new_val);
+}
- txq->need_update = 1;
+static void iwl4965_setup_rxon_timing(struct iwl_priv *priv)
+{
+ u64 interval_tm_unit;
+ u64 tsf, result;
+ unsigned long flags;
+ struct ieee80211_conf *conf = NULL;
+ u16 beacon_int = 0;
- /* Set up entry in queue's byte count circular buffer */
- ret = iwl4965_tx_queue_update_wr_ptr(priv, txq, 0);
+ conf = ieee80211_get_hw_conf(priv->hw);
- /* Increment and update queue's write index */
- q->write_ptr = iwl4965_queue_inc_wrap(q->write_ptr, q->n_bd);
- iwl4965_tx_queue_update_write_ptr(priv, txq);
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32);
+ priv->rxon_timing.timestamp.dw[0] =
+ cpu_to_le32(priv->timestamp & 0xFFFFFFFF);
- spin_unlock_irqrestore(&priv->hcmd_lock, flags);
- return ret ? ret : idx;
-}
+ priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
-static int iwl4965_send_cmd_async(struct iwl4965_priv *priv, struct iwl4965_host_cmd *cmd)
-{
- int ret;
+ tsf = priv->timestamp;
- BUG_ON(!(cmd->meta.flags & CMD_ASYNC));
+ beacon_int = priv->beacon_int;
+ spin_unlock_irqrestore(&priv->lock, flags);
- /* An asynchronous command can not expect an SKB to be set. */
- BUG_ON(cmd->meta.flags & CMD_WANT_SKB);
+ if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
+ if (beacon_int == 0) {
+ priv->rxon_timing.beacon_interval = cpu_to_le16(100);
+ priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
+ } else {
+ priv->rxon_timing.beacon_interval =
+ cpu_to_le16(beacon_int);
+ priv->rxon_timing.beacon_interval =
+ iwl4965_adjust_beacon_interval(
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+ }
- /* An asynchronous command MUST have a callback. */
- BUG_ON(!cmd->meta.u.callback);
+ priv->rxon_timing.atim_window = 0;
+ } else {
+ priv->rxon_timing.beacon_interval =
+ iwl4965_adjust_beacon_interval(conf->beacon_int);
+ /* TODO: we need to get atim_window from upper stack
+ * for now we set to 0 */
+ priv->rxon_timing.atim_window = 0;
+ }
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return -EBUSY;
+ interval_tm_unit =
+ (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
+ result = do_div(tsf, interval_tm_unit);
+ priv->rxon_timing.beacon_init_val =
+ cpu_to_le32((u32) ((u64) interval_tm_unit - result));
- ret = iwl4965_enqueue_hcmd(priv, cmd);
- if (ret < 0) {
- IWL_ERROR("Error sending %s: iwl4965_enqueue_hcmd failed: %d\n",
- get_cmd_string(cmd->id), ret);
- return ret;
- }
- return 0;
+ IWL_DEBUG_ASSOC
+ ("beacon interval %d beacon timer %d beacon tim %d\n",
+ le16_to_cpu(priv->rxon_timing.beacon_interval),
+ le32_to_cpu(priv->rxon_timing.beacon_init_val),
+ le16_to_cpu(priv->rxon_timing.atim_window));
}
-static int iwl4965_send_cmd_sync(struct iwl4965_priv *priv, struct iwl4965_host_cmd *cmd)
+static void iwl_set_flags_for_band(struct iwl_priv *priv,
+ enum ieee80211_band band)
{
- int cmd_idx;
- int ret;
- static atomic_t entry = ATOMIC_INIT(0); /* reentrance protection */
-
- BUG_ON(cmd->meta.flags & CMD_ASYNC);
+ if (band == IEEE80211_BAND_5GHZ) {
+ priv->staging_rxon.flags &=
+ ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
+ | RXON_FLG_CCK_MSK);
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ } else {
+ /* Copied from iwl4965_post_associate() */
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
- /* A synchronous command can not have a callback set. */
- BUG_ON(cmd->meta.u.callback != NULL);
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
- if (atomic_xchg(&entry, 1)) {
- IWL_ERROR("Error sending %s: Already sending a host command\n",
- get_cmd_string(cmd->id));
- return -EBUSY;
+ priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
+ priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
+ priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
}
+}
- set_bit(STATUS_HCMD_ACTIVE, &priv->status);
+/*
+ * initialize rxon structure with default values from eeprom
+ */
+static void iwl4965_connection_init_rx_config(struct iwl_priv *priv)
+{
+ const struct iwl_channel_info *ch_info;
- if (cmd->meta.flags & CMD_WANT_SKB)
- cmd->meta.source = &cmd->meta;
+ memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
- cmd_idx = iwl4965_enqueue_hcmd(priv, cmd);
- if (cmd_idx < 0) {
- ret = cmd_idx;
- IWL_ERROR("Error sending %s: iwl4965_enqueue_hcmd failed: %d\n",
- get_cmd_string(cmd->id), ret);
- goto out;
- }
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_AP:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
+ break;
- ret = wait_event_interruptible_timeout(priv->wait_command_queue,
- !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
- HOST_COMPLETE_TIMEOUT);
- if (!ret) {
- if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
- IWL_ERROR("Error sending %s: time out after %dms.\n",
- get_cmd_string(cmd->id),
- jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
+ case IEEE80211_IF_TYPE_STA:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
+ priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
- clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
- ret = -ETIMEDOUT;
- goto cancel;
- }
- }
+ case IEEE80211_IF_TYPE_IBSS:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
+ priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
+ priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
+ RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
- if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
- IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
- get_cmd_string(cmd->id));
- ret = -ECANCELED;
- goto fail;
- }
- if (test_bit(STATUS_FW_ERROR, &priv->status)) {
- IWL_DEBUG_INFO("Command %s failed: FW Error\n",
- get_cmd_string(cmd->id));
- ret = -EIO;
- goto fail;
- }
- if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) {
- IWL_ERROR("Error: Response NULL in '%s'\n",
- get_cmd_string(cmd->id));
- ret = -EIO;
- goto out;
+ case IEEE80211_IF_TYPE_MNTR:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
+ priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
+ RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+ default:
+ IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode);
+ break;
}
- ret = 0;
- goto out;
-
-cancel:
- if (cmd->meta.flags & CMD_WANT_SKB) {
- struct iwl4965_cmd *qcmd;
-
- /* Cancel the CMD_WANT_SKB flag for the cmd in the
- * TX cmd queue. Otherwise in case the cmd comes
- * in later, it will possibly set an invalid
- * address (cmd->meta.source). */
- qcmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
- qcmd->meta.flags &= ~CMD_WANT_SKB;
- }
-fail:
- if (cmd->meta.u.skb) {
- dev_kfree_skb_any(cmd->meta.u.skb);
- cmd->meta.u.skb = NULL;
- }
-out:
- atomic_set(&entry, 0);
- return ret;
-}
+#if 0
+ /* TODO: Figure out when short_preamble would be set and cache from
+ * that */
+ if (!hw_to_local(priv->hw)->short_preamble)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+#endif
-int iwl4965_send_cmd(struct iwl4965_priv *priv, struct iwl4965_host_cmd *cmd)
-{
- if (cmd->meta.flags & CMD_ASYNC)
- return iwl4965_send_cmd_async(priv, cmd);
+ ch_info = iwl_get_channel_info(priv, priv->band,
+ le16_to_cpu(priv->active_rxon.channel));
- return iwl4965_send_cmd_sync(priv, cmd);
-}
+ if (!ch_info)
+ ch_info = &priv->channel_info[0];
-int iwl4965_send_cmd_pdu(struct iwl4965_priv *priv, u8 id, u16 len, const void *data)
-{
- struct iwl4965_host_cmd cmd = {
- .id = id,
- .len = len,
- .data = data,
- };
+ /*
+ * in some case A channels are all non IBSS
+ * in this case force B/G channel
+ */
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
+ !(is_channel_ibss(ch_info)))
+ ch_info = &priv->channel_info[0];
- return iwl4965_send_cmd_sync(priv, &cmd);
-}
+ priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
+ priv->band = ch_info->band;
-static int __must_check iwl4965_send_cmd_u32(struct iwl4965_priv *priv, u8 id, u32 val)
-{
- struct iwl4965_host_cmd cmd = {
- .id = id,
- .len = sizeof(val),
- .data = &val,
- };
+ iwl_set_flags_for_band(priv, priv->band);
- return iwl4965_send_cmd_sync(priv, &cmd);
-}
+ priv->staging_rxon.ofdm_basic_rates =
+ (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+ priv->staging_rxon.cck_basic_rates =
+ (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-int iwl4965_send_statistics_request(struct iwl4965_priv *priv)
-{
- return iwl4965_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0);
+ priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
+ RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+ memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
+ priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
+ priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
+ iwl_set_rxon_chain(priv);
}
-/**
- * iwl4965_rxon_add_station - add station into station table.
- *
- * there is only one AP station with id= IWL_AP_ID
- * NOTE: mutex must be held before calling this fnction
- */
-static int iwl4965_rxon_add_station(struct iwl4965_priv *priv,
- const u8 *addr, int is_ap)
+static int iwl4965_set_mode(struct iwl_priv *priv, int mode)
{
- u8 sta_id;
-
- /* Add station to device's station table */
-#ifdef CONFIG_IWL4965_HT
- struct ieee80211_conf *conf = &priv->hw->conf;
- struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf;
-
- if ((is_ap) &&
- (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
- (priv->iw_mode == IEEE80211_IF_TYPE_STA))
- sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
- 0, cur_ht_config);
- else
-#endif /* CONFIG_IWL4965_HT */
- sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
- 0, NULL);
+ priv->iw_mode = mode;
- /* Set up default rate scaling table in device's station table */
- iwl4965_add_station(priv, addr, is_ap);
+ iwl4965_connection_init_rx_config(priv);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
- return sta_id;
-}
+ iwl_clear_stations_table(priv);
-/**
- * iwl4965_set_rxon_channel - Set the phymode and channel values in staging RXON
- * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
- * @channel: Any channel valid for the requested phymode
+ /* dont commit rxon if rf-kill is on*/
+ if (!iwl_is_ready_rf(priv))
+ return -EAGAIN;
- * In addition to setting the staging RXON, priv->phymode is also set.
- *
- * NOTE: Does not commit to the hardware; it sets appropriate bit fields
- * in the staging RXON flag structure based on the phymode
- */
-static int iwl4965_set_rxon_channel(struct iwl4965_priv *priv, u8 phymode,
- u16 channel)
-{
- if (!iwl4965_get_channel_info(priv, phymode, channel)) {
- IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
- channel, phymode);
- return -EINVAL;
+ cancel_delayed_work(&priv->scan_check);
+ if (iwl_scan_cancel_timeout(priv, 100)) {
+ IWL_WARNING("Aborted scan still in progress after 100ms\n");
+ IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
+ return -EAGAIN;
}
- if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
- (priv->phymode == phymode))
- return 0;
-
- priv->staging_rxon.channel = cpu_to_le16(channel);
- if (phymode == MODE_IEEE80211A)
- priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
- else
- priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
-
- priv->phymode = phymode;
-
- IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, phymode);
+ iwl4965_commit_rxon(priv);
return 0;
}
-/**
- * iwl4965_check_rxon_cmd - validate RXON structure is valid
- *
- * NOTE: This is really only useful during development and can eventually
- * be #ifdef'd out once the driver is stable and folks aren't actively
- * making changes
- */
-static int iwl4965_check_rxon_cmd(struct iwl4965_rxon_cmd *rxon)
+static void iwl4965_set_rate(struct iwl_priv *priv)
{
- int error = 0;
- int counter = 1;
+ const struct ieee80211_supported_band *hw = NULL;
+ struct ieee80211_rate *rate;
+ int i;
- if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
- error |= le32_to_cpu(rxon->flags &
- (RXON_FLG_TGJ_NARROW_BAND_MSK |
- RXON_FLG_RADAR_DETECT_MSK));
- if (error)
- IWL_WARNING("check 24G fields %d | %d\n",
- counter++, error);
- } else {
- error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
- 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
- if (error)
- IWL_WARNING("check 52 fields %d | %d\n",
- counter++, error);
- error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
- if (error)
- IWL_WARNING("check 52 CCK %d | %d\n",
- counter++, error);
+ hw = iwl_get_hw_mode(priv, priv->band);
+ if (!hw) {
+ IWL_ERROR("Failed to set rate: unable to get hw mode\n");
+ return;
}
- error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
- if (error)
- IWL_WARNING("check mac addr %d | %d\n", counter++, error);
- /* make sure basic rates 6Mbps and 1Mbps are supported */
- error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
- ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
- if (error)
- IWL_WARNING("check basic rate %d | %d\n", counter++, error);
+ priv->active_rate = 0;
+ priv->active_rate_basic = 0;
- error |= (le16_to_cpu(rxon->assoc_id) > 2007);
- if (error)
- IWL_WARNING("check assoc id %d | %d\n", counter++, error);
+ for (i = 0; i < hw->n_bitrates; i++) {
+ rate = &(hw->bitrates[i]);
+ if (rate->hw_value < IWL_RATE_COUNT)
+ priv->active_rate |= (1 << rate->hw_value);
+ }
- error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
- == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
- if (error)
- IWL_WARNING("check CCK and short slot %d | %d\n",
- counter++, error);
+ IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
+ priv->active_rate, priv->active_rate_basic);
- error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
- == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
- if (error)
- IWL_WARNING("check CCK & auto detect %d | %d\n",
- counter++, error);
+ /*
+ * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
+ * otherwise set it to the default of all CCK rates and 6, 12, 24 for
+ * OFDM
+ */
+ if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
+ priv->staging_rxon.cck_basic_rates =
+ ((priv->active_rate_basic &
+ IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
+ else
+ priv->staging_rxon.cck_basic_rates =
+ (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
- error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
- RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
- if (error)
- IWL_WARNING("check TGG and auto detect %d | %d\n",
- counter++, error);
+ if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
+ priv->staging_rxon.ofdm_basic_rates =
+ ((priv->active_rate_basic &
+ (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
+ IWL_FIRST_OFDM_RATE) & 0xFF;
+ else
+ priv->staging_rxon.ofdm_basic_rates =
+ (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+}
- if (error)
- IWL_WARNING("Tuning to channel %d\n",
- le16_to_cpu(rxon->channel));
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
- if (error) {
- IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
- return -1;
- }
- return 0;
-}
+#include "iwl-spectrum.h"
-/**
- * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
- * @priv: staging_rxon is compared to active_rxon
- *
- * If the RXON structure is changing enough to require a new tune,
- * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
- * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
- */
-static int iwl4965_full_rxon_required(struct iwl4965_priv *priv)
-{
+#define BEACON_TIME_MASK_LOW 0x00FFFFFF
+#define BEACON_TIME_MASK_HIGH 0xFF000000
+#define TIME_UNIT 1024
- /* These items are only settable from the full RXON command */
- if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ||
- compare_ether_addr(priv->staging_rxon.bssid_addr,
- priv->active_rxon.bssid_addr) ||
- compare_ether_addr(priv->staging_rxon.node_addr,
- priv->active_rxon.node_addr) ||
- compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
- priv->active_rxon.wlap_bssid_addr) ||
- (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
- (priv->staging_rxon.channel != priv->active_rxon.channel) ||
- (priv->staging_rxon.air_propagation !=
- priv->active_rxon.air_propagation) ||
- (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
- priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
- (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
- priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
- (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) ||
- (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
- return 1;
+/*
+ * extended beacon time format
+ * time in usec will be changed into a 32-bit value in 8:24 format
+ * the high 1 byte is the beacon counts
+ * the lower 3 bytes is the time in usec within one beacon interval
+ */
- /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
- * be updated with the RXON_ASSOC command -- however only some
- * flag transitions are allowed using RXON_ASSOC */
+static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval)
+{
+ u32 quot;
+ u32 rem;
+ u32 interval = beacon_interval * 1024;
- /* Check if we are not switching bands */
- if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
- (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
- return 1;
+ if (!interval || !usec)
+ return 0;
- /* Check if we are switching association toggle */
- if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
- (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
- return 1;
+ quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
+ rem = (usec % interval) & BEACON_TIME_MASK_LOW;
- return 0;
+ return (quot << 24) + rem;
}
-static int iwl4965_send_rxon_assoc(struct iwl4965_priv *priv)
+/* base is usually what we get from ucode with each received frame,
+ * the same as HW timer counter counting down
+ */
+
+static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
{
- int rc = 0;
- struct iwl4965_rx_packet *res = NULL;
- struct iwl4965_rxon_assoc_cmd rxon_assoc;
- struct iwl4965_host_cmd cmd = {
- .id = REPLY_RXON_ASSOC,
- .len = sizeof(rxon_assoc),
- .meta.flags = CMD_WANT_SKB,
- .data = &rxon_assoc,
- };
- const struct iwl4965_rxon_cmd *rxon1 = &priv->staging_rxon;
- const struct iwl4965_rxon_cmd *rxon2 = &priv->active_rxon;
-
- if ((rxon1->flags == rxon2->flags) &&
- (rxon1->filter_flags == rxon2->filter_flags) &&
- (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
- (rxon1->ofdm_ht_single_stream_basic_rates ==
- rxon2->ofdm_ht_single_stream_basic_rates) &&
- (rxon1->ofdm_ht_dual_stream_basic_rates ==
- rxon2->ofdm_ht_dual_stream_basic_rates) &&
- (rxon1->rx_chain == rxon2->rx_chain) &&
- (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
- IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
- return 0;
- }
-
- rxon_assoc.flags = priv->staging_rxon.flags;
- rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
- rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
- rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
- rxon_assoc.reserved = 0;
- rxon_assoc.ofdm_ht_single_stream_basic_rates =
- priv->staging_rxon.ofdm_ht_single_stream_basic_rates;
- rxon_assoc.ofdm_ht_dual_stream_basic_rates =
- priv->staging_rxon.ofdm_ht_dual_stream_basic_rates;
- rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain;
-
- rc = iwl4965_send_cmd_sync(priv, &cmd);
- if (rc)
- return rc;
-
- res = (struct iwl4965_rx_packet *)cmd.meta.u.skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
- rc = -EIO;
- }
+ u32 base_low = base & BEACON_TIME_MASK_LOW;
+ u32 addon_low = addon & BEACON_TIME_MASK_LOW;
+ u32 interval = beacon_interval * TIME_UNIT;
+ u32 res = (base & BEACON_TIME_MASK_HIGH) +
+ (addon & BEACON_TIME_MASK_HIGH);
- priv->alloc_rxb_skb--;
- dev_kfree_skb_any(cmd.meta.u.skb);
+ if (base_low > addon_low)
+ res += base_low - addon_low;
+ else if (base_low < addon_low) {
+ res += interval + base_low - addon_low;
+ res += (1 << 24);
+ } else
+ res += (1 << 24);
- return rc;
+ return cpu_to_le32(res);
}
-/**
- * iwl4965_commit_rxon - commit staging_rxon to hardware
- *
- * The RXON command in staging_rxon is committed to the hardware and
- * the active_rxon structure is updated with the new data. This
- * function correctly transitions out of the RXON_ASSOC_MSK state if
- * a HW tune is required based on the RXON structure changes.
- */
-static int iwl4965_commit_rxon(struct iwl4965_priv *priv)
+static int iwl4965_get_measurement(struct iwl_priv *priv,
+ struct ieee80211_measurement_params *params,
+ u8 type)
{
- /* cast away the const for active_rxon in this function */
- struct iwl4965_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
- DECLARE_MAC_BUF(mac);
- int rc = 0;
-
- if (!iwl4965_is_alive(priv))
- return -1;
-
- /* always get timestamp with Rx frame */
- priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
-
- rc = iwl4965_check_rxon_cmd(&priv->staging_rxon);
- if (rc) {
- IWL_ERROR("Invalid RXON configuration. Not committing.\n");
- return -EINVAL;
- }
-
- /* If we don't need to send a full RXON, we can use
- * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
- * and other flags for the current radio configuration. */
- if (!iwl4965_full_rxon_required(priv)) {
- rc = iwl4965_send_rxon_assoc(priv);
- if (rc) {
- IWL_ERROR("Error setting RXON_ASSOC "
- "configuration (%d).\n", rc);
- return rc;
- }
-
- memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
-
- return 0;
- }
-
- /* station table will be cleared */
- priv->assoc_station_added = 0;
-
-#ifdef CONFIG_IWL4965_SENSITIVITY
- priv->sensitivity_data.state = IWL_SENS_CALIB_NEED_REINIT;
- if (!priv->error_recovering)
- priv->start_calib = 0;
-
- iwl4965_init_sensitivity(priv, CMD_ASYNC, 1);
-#endif /* CONFIG_IWL4965_SENSITIVITY */
-
- /* If we are currently associated and the new config requires
- * an RXON_ASSOC and the new config wants the associated mask enabled,
- * we must clear the associated from the active configuration
- * before we apply the new config */
- if (iwl4965_is_associated(priv) &&
- (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
- IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
- active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-
- rc = iwl4965_send_cmd_pdu(priv, REPLY_RXON,
- sizeof(struct iwl4965_rxon_cmd),
- &priv->active_rxon);
-
- /* If the mask clearing failed then we set
- * active_rxon back to what it was previously */
- if (rc) {
- active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
- IWL_ERROR("Error clearing ASSOC_MSK on current "
- "configuration (%d).\n", rc);
- return rc;
- }
- }
-
- IWL_DEBUG_INFO("Sending RXON\n"
- "* with%s RXON_FILTER_ASSOC_MSK\n"
- "* channel = %d\n"
- "* bssid = %s\n",
- ((priv->staging_rxon.filter_flags &
- RXON_FILTER_ASSOC_MSK) ? "" : "out"),
- le16_to_cpu(priv->staging_rxon.channel),
- print_mac(mac, priv->staging_rxon.bssid_addr));
+ struct iwl4965_spectrum_cmd spectrum;
+ struct iwl_rx_packet *res;
+ struct iwl_host_cmd cmd = {
+ .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
+ .data = (void *)&spectrum,
+ .meta.flags = CMD_WANT_SKB,
+ };
+ u32 add_time = le64_to_cpu(params->start_time);
+ int rc;
+ int spectrum_resp_status;
+ int duration = le16_to_cpu(params->duration);
- /* Apply the new configuration */
- rc = iwl4965_send_cmd_pdu(priv, REPLY_RXON,
- sizeof(struct iwl4965_rxon_cmd), &priv->staging_rxon);
- if (rc) {
- IWL_ERROR("Error setting new configuration (%d).\n", rc);
- return rc;
- }
+ if (iwl_is_associated(priv))
+ add_time =
+ iwl4965_usecs_to_beacons(
+ le64_to_cpu(params->start_time) - priv->last_tsf,
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
- iwl4965_clear_stations_table(priv);
+ memset(&spectrum, 0, sizeof(spectrum));
-#ifdef CONFIG_IWL4965_SENSITIVITY
- if (!priv->error_recovering)
- priv->start_calib = 0;
+ spectrum.channel_count = cpu_to_le16(1);
+ spectrum.flags =
+ RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
+ spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
+ cmd.len = sizeof(spectrum);
+ spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
- priv->sensitivity_data.state = IWL_SENS_CALIB_NEED_REINIT;
- iwl4965_init_sensitivity(priv, CMD_ASYNC, 1);
-#endif /* CONFIG_IWL4965_SENSITIVITY */
+ if (iwl_is_associated(priv))
+ spectrum.start_time =
+ iwl4965_add_beacon_time(priv->last_beacon_time,
+ add_time,
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+ else
+ spectrum.start_time = 0;
- memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+ spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
+ spectrum.channels[0].channel = params->channel;
+ spectrum.channels[0].type = type;
+ if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
+ spectrum.flags |= RXON_FLG_BAND_24G_MSK |
+ RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
- /* If we issue a new RXON command which required a tune then we must
- * send a new TXPOWER command or we won't be able to Tx any frames */
- rc = iwl4965_hw_reg_send_txpower(priv);
- if (rc) {
- IWL_ERROR("Error setting Tx power (%d).\n", rc);
+ rc = iwl_send_cmd_sync(priv, &cmd);
+ if (rc)
return rc;
- }
- /* Add the broadcast address so we can send broadcast frames */
- if (iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0) ==
- IWL_INVALID_STATION) {
- IWL_ERROR("Error adding BROADCAST address for transmit.\n");
- return -EIO;
+ res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
+ rc = -EIO;
}
- /* If we have set the ASSOC_MSK and we are in BSS mode then
- * add the IWL_AP_ID to the station rate table */
- if (iwl4965_is_associated(priv) &&
- (priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
- if (iwl4965_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
- == IWL_INVALID_STATION) {
- IWL_ERROR("Error adding AP address for transmit.\n");
- return -EIO;
+ spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
+ switch (spectrum_resp_status) {
+ case 0: /* Command will be handled */
+ if (res->u.spectrum.id != 0xff) {
+ IWL_DEBUG_INFO
+ ("Replaced existing measurement: %d\n",
+ res->u.spectrum.id);
+ priv->measurement_status &= ~MEASUREMENT_READY;
}
- priv->assoc_station_added = 1;
- }
+ priv->measurement_status |= MEASUREMENT_ACTIVE;
+ rc = 0;
+ break;
- return 0;
-}
+ case 1: /* Command will not be handled */
+ rc = -EAGAIN;
+ break;
+ }
-static int iwl4965_send_bt_config(struct iwl4965_priv *priv)
-{
- struct iwl4965_bt_cmd bt_cmd = {
- .flags = 3,
- .lead_time = 0xAA,
- .max_kill = 1,
- .kill_ack_mask = 0,
- .kill_cts_mask = 0,
- };
+ dev_kfree_skb_any(cmd.meta.u.skb);
- return iwl4965_send_cmd_pdu(priv, REPLY_BT_CONFIG,
- sizeof(struct iwl4965_bt_cmd), &bt_cmd);
+ return rc;
}
+#endif
-static int iwl4965_send_scan_abort(struct iwl4965_priv *priv)
+/******************************************************************************
+ *
+ * Generic RX handler implementations
+ *
+ ******************************************************************************/
+static void iwl_rx_reply_alive(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
{
- int rc = 0;
- struct iwl4965_rx_packet *res;
- struct iwl4965_host_cmd cmd = {
- .id = REPLY_SCAN_ABORT_CMD,
- .meta.flags = CMD_WANT_SKB,
- };
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl_alive_resp *palive;
+ struct delayed_work *pwork;
- /* If there isn't a scan actively going on in the hardware
- * then we are in between scan bands and not actually
- * actively scanning, so don't send the abort command */
- if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
- clear_bit(STATUS_SCAN_ABORTING, &priv->status);
- return 0;
- }
+ palive = &pkt->u.alive_frame;
- rc = iwl4965_send_cmd_sync(priv, &cmd);
- if (rc) {
- clear_bit(STATUS_SCAN_ABORTING, &priv->status);
- return rc;
- }
+ IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
+ "0x%01X 0x%01X\n",
+ palive->is_valid, palive->ver_type,
+ palive->ver_subtype);
- res = (struct iwl4965_rx_packet *)cmd.meta.u.skb->data;
- if (res->u.status != CAN_ABORT_STATUS) {
- /* The scan abort will return 1 for success or
- * 2 for "failure". A failure condition can be
- * due to simply not being in an active scan which
- * can occur if we send the scan abort before we
- * the microcode has notified us that a scan is
- * completed. */
- IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
- clear_bit(STATUS_SCAN_ABORTING, &priv->status);
- clear_bit(STATUS_SCAN_HW, &priv->status);
+ if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
+ IWL_DEBUG_INFO("Initialization Alive received.\n");
+ memcpy(&priv->card_alive_init,
+ &pkt->u.alive_frame,
+ sizeof(struct iwl_init_alive_resp));
+ pwork = &priv->init_alive_start;
+ } else {
+ IWL_DEBUG_INFO("Runtime Alive received.\n");
+ memcpy(&priv->card_alive, &pkt->u.alive_frame,
+ sizeof(struct iwl_alive_resp));
+ pwork = &priv->alive_start;
}
- dev_kfree_skb_any(cmd.meta.u.skb);
-
- return rc;
+ /* We delay the ALIVE response by 5ms to
+ * give the HW RF Kill time to activate... */
+ if (palive->is_valid == UCODE_VALID_OK)
+ queue_delayed_work(priv->workqueue, pwork,
+ msecs_to_jiffies(5));
+ else
+ IWL_WARNING("uCode did not respond OK.\n");
}
-static int iwl4965_card_state_sync_callback(struct iwl4965_priv *priv,
- struct iwl4965_cmd *cmd,
- struct sk_buff *skb)
+static void iwl4965_rx_reply_error(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
{
- return 1;
-}
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
-/*
- * CARD_STATE_CMD
- *
- * Use: Sets the device's internal card state to enable, disable, or halt
- *
- * When in the 'enable' state the card operates as normal.
- * When in the 'disable' state, the card enters into a low power mode.
- * When in the 'halt' state, the card is shut down and must be fully
- * restarted to come back on.
- */
-static int iwl4965_send_card_state(struct iwl4965_priv *priv, u32 flags, u8 meta_flag)
-{
- struct iwl4965_host_cmd cmd = {
- .id = REPLY_CARD_STATE_CMD,
- .len = sizeof(u32),
- .data = &flags,
- .meta.flags = meta_flag,
- };
+ IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
+ "seq 0x%04X ser 0x%08X\n",
+ le32_to_cpu(pkt->u.err_resp.error_type),
+ get_cmd_string(pkt->u.err_resp.cmd_id),
+ pkt->u.err_resp.cmd_id,
+ le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
+ le32_to_cpu(pkt->u.err_resp.error_info));
+}
- if (meta_flag & CMD_ASYNC)
- cmd.meta.u.callback = iwl4965_card_state_sync_callback;
+#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
- return iwl4965_send_cmd(priv, &cmd);
+static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
+ struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif);
+ IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
+ le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
+ rxon->channel = csa->channel;
+ priv->staging_rxon.channel = csa->channel;
}
-static int iwl4965_add_sta_sync_callback(struct iwl4965_priv *priv,
- struct iwl4965_cmd *cmd, struct sk_buff *skb)
+static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
{
- struct iwl4965_rx_packet *res = NULL;
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif);
- if (!skb) {
- IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
- return 1;
+ if (!report->state) {
+ IWL_DEBUG(IWL_DL_11H,
+ "Spectrum Measure Notification: Start\n");
+ return;
}
- res = (struct iwl4965_rx_packet *)skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
- res->hdr.flags);
- return 1;
- }
+ memcpy(&priv->measure_report, report, sizeof(*report));
+ priv->measurement_status |= MEASUREMENT_READY;
+#endif
+}
- switch (res->u.add_sta.status) {
- case ADD_STA_SUCCESS_MSK:
- break;
- default:
- break;
- }
+static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif);
+ IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
+ sleep->pm_sleep_mode, sleep->pm_wakeup_src);
+#endif
+}
- /* We didn't cache the SKB; let the caller free it */
- return 1;
+static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
+ "notification for %s:\n",
+ le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
+ iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
}
-int iwl4965_send_add_station(struct iwl4965_priv *priv,
- struct iwl4965_addsta_cmd *sta, u8 flags)
+static void iwl4965_bg_beacon_update(struct work_struct *work)
{
- struct iwl4965_rx_packet *res = NULL;
- int rc = 0;
- struct iwl4965_host_cmd cmd = {
- .id = REPLY_ADD_STA,
- .len = sizeof(struct iwl4965_addsta_cmd),
- .meta.flags = flags,
- .data = sta,
- };
-
- if (flags & CMD_ASYNC)
- cmd.meta.u.callback = iwl4965_add_sta_sync_callback;
- else
- cmd.meta.flags |= CMD_WANT_SKB;
-
- rc = iwl4965_send_cmd(priv, &cmd);
-
- if (rc || (flags & CMD_ASYNC))
- return rc;
-
- res = (struct iwl4965_rx_packet *)cmd.meta.u.skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
- res->hdr.flags);
- rc = -EIO;
- }
-
- if (rc == 0) {
- switch (res->u.add_sta.status) {
- case ADD_STA_SUCCESS_MSK:
- IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
- break;
- default:
- rc = -EIO;
- IWL_WARNING("REPLY_ADD_STA failed\n");
- break;
- }
- }
-
- priv->alloc_rxb_skb--;
- dev_kfree_skb_any(cmd.meta.u.skb);
-
- return rc;
-}
-
-static int iwl4965_update_sta_key_info(struct iwl4965_priv *priv,
- struct ieee80211_key_conf *keyconf,
- u8 sta_id)
-{
- unsigned long flags;
- __le16 key_flags = 0;
-
- switch (keyconf->alg) {
- case ALG_CCMP:
- key_flags |= STA_KEY_FLG_CCMP;
- key_flags |= cpu_to_le16(
- keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
- key_flags &= ~STA_KEY_FLG_INVALID;
- break;
- case ALG_TKIP:
- case ALG_WEP:
- default:
- return -EINVAL;
- }
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].keyinfo.alg = keyconf->alg;
- priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
- memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
- keyconf->keylen);
-
- memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
- keyconf->keylen);
- priv->stations[sta_id].sta.key.key_flags = key_flags;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
- iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, 0);
- return 0;
-}
-
-static int iwl4965_clear_sta_key_info(struct iwl4965_priv *priv, u8 sta_id)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl4965_hw_key));
- memset(&priv->stations[sta_id].sta.key, 0, sizeof(struct iwl4965_keyinfo));
- priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
- iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, 0);
- return 0;
-}
-
-static void iwl4965_clear_free_frames(struct iwl4965_priv *priv)
-{
- struct list_head *element;
-
- IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
- priv->frames_count);
-
- while (!list_empty(&priv->free_frames)) {
- element = priv->free_frames.next;
- list_del(element);
- kfree(list_entry(element, struct iwl4965_frame, list));
- priv->frames_count--;
- }
-
- if (priv->frames_count) {
- IWL_WARNING("%d frames still in use. Did we lose one?\n",
- priv->frames_count);
- priv->frames_count = 0;
- }
-}
-
-static struct iwl4965_frame *iwl4965_get_free_frame(struct iwl4965_priv *priv)
-{
- struct iwl4965_frame *frame;
- struct list_head *element;
- if (list_empty(&priv->free_frames)) {
- frame = kzalloc(sizeof(*frame), GFP_KERNEL);
- if (!frame) {
- IWL_ERROR("Could not allocate frame!\n");
- return NULL;
- }
-
- priv->frames_count++;
- return frame;
- }
-
- element = priv->free_frames.next;
- list_del(element);
- return list_entry(element, struct iwl4965_frame, list);
-}
-
-static void iwl4965_free_frame(struct iwl4965_priv *priv, struct iwl4965_frame *frame)
-{
- memset(frame, 0, sizeof(*frame));
- list_add(&frame->list, &priv->free_frames);
-}
-
-unsigned int iwl4965_fill_beacon_frame(struct iwl4965_priv *priv,
- struct ieee80211_hdr *hdr,
- const u8 *dest, int left)
-{
-
- if (!iwl4965_is_associated(priv) || !priv->ibss_beacon ||
- ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
- (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
- return 0;
-
- if (priv->ibss_beacon->len > left)
- return 0;
-
- memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
-
- return priv->ibss_beacon->len;
-}
-
-int iwl4965_rate_index_from_plcp(int plcp)
-{
- int i = 0;
-
- /* 4965 HT rate format */
- if (plcp & RATE_MCS_HT_MSK) {
- i = (plcp & 0xff);
-
- if (i >= IWL_RATE_MIMO_6M_PLCP)
- i = i - IWL_RATE_MIMO_6M_PLCP;
-
- i += IWL_FIRST_OFDM_RATE;
- /* skip 9M not supported in ht*/
- if (i >= IWL_RATE_9M_INDEX)
- i += 1;
- if ((i >= IWL_FIRST_OFDM_RATE) &&
- (i <= IWL_LAST_OFDM_RATE))
- return i;
-
- /* 4965 legacy rate format, search for match in table */
- } else {
- for (i = 0; i < ARRAY_SIZE(iwl4965_rates); i++)
- if (iwl4965_rates[i].plcp == (plcp &0xFF))
- return i;
- }
- return -1;
-}
-
-static u8 iwl4965_rate_get_lowest_plcp(int rate_mask)
-{
- u8 i;
-
- for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
- i = iwl4965_rates[i].next_ieee) {
- if (rate_mask & (1 << i))
- return iwl4965_rates[i].plcp;
- }
-
- return IWL_RATE_INVALID;
-}
-
-static int iwl4965_send_beacon_cmd(struct iwl4965_priv *priv)
-{
- struct iwl4965_frame *frame;
- unsigned int frame_size;
- int rc;
- u8 rate;
-
- frame = iwl4965_get_free_frame(priv);
-
- if (!frame) {
- IWL_ERROR("Could not obtain free frame buffer for beacon "
- "command.\n");
- return -ENOMEM;
- }
-
- if (!(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)) {
- rate = iwl4965_rate_get_lowest_plcp(priv->active_rate_basic &
- 0xFF0);
- if (rate == IWL_INVALID_RATE)
- rate = IWL_RATE_6M_PLCP;
- } else {
- rate = iwl4965_rate_get_lowest_plcp(priv->active_rate_basic & 0xF);
- if (rate == IWL_INVALID_RATE)
- rate = IWL_RATE_1M_PLCP;
- }
-
- frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate);
-
- rc = iwl4965_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
- &frame->u.cmd[0]);
-
- iwl4965_free_frame(priv, frame);
-
- return rc;
-}
-
-/******************************************************************************
- *
- * EEPROM related functions
- *
- ******************************************************************************/
-
-static void get_eeprom_mac(struct iwl4965_priv *priv, u8 *mac)
-{
- memcpy(mac, priv->eeprom.mac_address, 6);
-}
-
-static inline void iwl4965_eeprom_release_semaphore(struct iwl4965_priv *priv)
-{
- iwl4965_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
-}
-
-/**
- * iwl4965_eeprom_init - read EEPROM contents
- *
- * Load the EEPROM contents from adapter into priv->eeprom
- *
- * NOTE: This routine uses the non-debug IO access functions.
- */
-int iwl4965_eeprom_init(struct iwl4965_priv *priv)
-{
- u16 *e = (u16 *)&priv->eeprom;
- u32 gp = iwl4965_read32(priv, CSR_EEPROM_GP);
- u32 r;
- int sz = sizeof(priv->eeprom);
- int rc;
- int i;
- u16 addr;
-
- /* The EEPROM structure has several padding buffers within it
- * and when adding new EEPROM maps is subject to programmer errors
- * which may be very difficult to identify without explicitly
- * checking the resulting size of the eeprom map. */
- BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE);
-
- if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
- IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp);
- return -ENOENT;
- }
-
- /* Make sure driver (instead of uCode) is allowed to read EEPROM */
- rc = iwl4965_eeprom_acquire_semaphore(priv);
- if (rc < 0) {
- IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
- return -ENOENT;
- }
-
- /* eeprom is an array of 16bit values */
- for (addr = 0; addr < sz; addr += sizeof(u16)) {
- _iwl4965_write32(priv, CSR_EEPROM_REG, addr << 1);
- _iwl4965_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
-
- for (i = 0; i < IWL_EEPROM_ACCESS_TIMEOUT;
- i += IWL_EEPROM_ACCESS_DELAY) {
- r = _iwl4965_read_direct32(priv, CSR_EEPROM_REG);
- if (r & CSR_EEPROM_REG_READ_VALID_MSK)
- break;
- udelay(IWL_EEPROM_ACCESS_DELAY);
- }
-
- if (!(r & CSR_EEPROM_REG_READ_VALID_MSK)) {
- IWL_ERROR("Time out reading EEPROM[%d]", addr);
- rc = -ETIMEDOUT;
- goto done;
- }
- e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
- }
- rc = 0;
-
-done:
- iwl4965_eeprom_release_semaphore(priv);
- return rc;
-}
-
-/******************************************************************************
- *
- * Misc. internal state and helper functions
- *
- ******************************************************************************/
-#ifdef CONFIG_IWL4965_DEBUG
-
-/**
- * iwl4965_report_frame - dump frame to syslog during debug sessions
- *
- * You may hack this function to show different aspects of received frames,
- * including selective frame dumps.
- * group100 parameter selects whether to show 1 out of 100 good frames.
- *
- * TODO: This was originally written for 3945, need to audit for
- * proper operation with 4965.
- */
-void iwl4965_report_frame(struct iwl4965_priv *priv,
- struct iwl4965_rx_packet *pkt,
- struct ieee80211_hdr *header, int group100)
-{
- u32 to_us;
- u32 print_summary = 0;
- u32 print_dump = 0; /* set to 1 to dump all frames' contents */
- u32 hundred = 0;
- u32 dataframe = 0;
- u16 fc;
- u16 seq_ctl;
- u16 channel;
- u16 phy_flags;
- int rate_sym;
- u16 length;
- u16 status;
- u16 bcn_tmr;
- u32 tsf_low;
- u64 tsf;
- u8 rssi;
- u8 agc;
- u16 sig_avg;
- u16 noise_diff;
- struct iwl4965_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
- struct iwl4965_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
- struct iwl4965_rx_frame_end *rx_end = IWL_RX_END(pkt);
- u8 *data = IWL_RX_DATA(pkt);
-
- /* MAC header */
- fc = le16_to_cpu(header->frame_control);
- seq_ctl = le16_to_cpu(header->seq_ctrl);
-
- /* metadata */
- channel = le16_to_cpu(rx_hdr->channel);
- phy_flags = le16_to_cpu(rx_hdr->phy_flags);
- rate_sym = rx_hdr->rate;
- length = le16_to_cpu(rx_hdr->len);
-
- /* end-of-frame status and timestamp */
- status = le32_to_cpu(rx_end->status);
- bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp);
- tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff;
- tsf = le64_to_cpu(rx_end->timestamp);
-
- /* signal statistics */
- rssi = rx_stats->rssi;
- agc = rx_stats->agc;
- sig_avg = le16_to_cpu(rx_stats->sig_avg);
- noise_diff = le16_to_cpu(rx_stats->noise_diff);
-
- to_us = !compare_ether_addr(header->addr1, priv->mac_addr);
-
- /* if data frame is to us and all is good,
- * (optionally) print summary for only 1 out of every 100 */
- if (to_us && (fc & ~IEEE80211_FCTL_PROTECTED) ==
- (IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) {
- dataframe = 1;
- if (!group100)
- print_summary = 1; /* print each frame */
- else if (priv->framecnt_to_us < 100) {
- priv->framecnt_to_us++;
- print_summary = 0;
- } else {
- priv->framecnt_to_us = 0;
- print_summary = 1;
- hundred = 1;
- }
- } else {
- /* print summary for all other frames */
- print_summary = 1;
- }
-
- if (print_summary) {
- char *title;
- u32 rate;
-
- if (hundred)
- title = "100Frames";
- else if (fc & IEEE80211_FCTL_RETRY)
- title = "Retry";
- else if (ieee80211_is_assoc_response(fc))
- title = "AscRsp";
- else if (ieee80211_is_reassoc_response(fc))
- title = "RasRsp";
- else if (ieee80211_is_probe_response(fc)) {
- title = "PrbRsp";
- print_dump = 1; /* dump frame contents */
- } else if (ieee80211_is_beacon(fc)) {
- title = "Beacon";
- print_dump = 1; /* dump frame contents */
- } else if (ieee80211_is_atim(fc))
- title = "ATIM";
- else if (ieee80211_is_auth(fc))
- title = "Auth";
- else if (ieee80211_is_deauth(fc))
- title = "DeAuth";
- else if (ieee80211_is_disassoc(fc))
- title = "DisAssoc";
- else
- title = "Frame";
-
- rate = iwl4965_rate_index_from_plcp(rate_sym);
- if (rate == -1)
- rate = 0;
- else
- rate = iwl4965_rates[rate].ieee / 2;
-
- /* print frame summary.
- * MAC addresses show just the last byte (for brevity),
- * but you can hack it to show more, if you'd like to. */
- if (dataframe)
- IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
- "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
- title, fc, header->addr1[5],
- length, rssi, channel, rate);
- else {
- /* src/dst addresses assume managed mode */
- IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
- "src=0x%02x, rssi=%u, tim=%lu usec, "
- "phy=0x%02x, chnl=%d\n",
- title, fc, header->addr1[5],
- header->addr3[5], rssi,
- tsf_low - priv->scan_start_tsf,
- phy_flags, channel);
- }
- }
- if (print_dump)
- iwl4965_print_hex_dump(IWL_DL_RX, data, length);
-}
-#endif
-
-static void iwl4965_unset_hw_setting(struct iwl4965_priv *priv)
-{
- if (priv->hw_setting.shared_virt)
- pci_free_consistent(priv->pci_dev,
- sizeof(struct iwl4965_shared),
- priv->hw_setting.shared_virt,
- priv->hw_setting.shared_phys);
-}
-
-/**
- * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
- *
- * return : set the bit for each supported rate insert in ie
- */
-static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate,
- u16 basic_rate, int *left)
-{
- u16 ret_rates = 0, bit;
- int i;
- u8 *cnt = ie;
- u8 *rates = ie + 1;
-
- for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
- if (bit & supported_rate) {
- ret_rates |= bit;
- rates[*cnt] = iwl4965_rates[i].ieee |
- ((bit & basic_rate) ? 0x80 : 0x00);
- (*cnt)++;
- (*left)--;
- if ((*left <= 0) ||
- (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
- break;
- }
- }
-
- return ret_rates;
-}
-
-#ifdef CONFIG_IWL4965_HT
-void static iwl4965_set_ht_capab(struct ieee80211_hw *hw,
- struct ieee80211_ht_cap *ht_cap,
- u8 use_current_config);
-#endif
-
-/**
- * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
- */
-static u16 iwl4965_fill_probe_req(struct iwl4965_priv *priv,
- struct ieee80211_mgmt *frame,
- int left, int is_direct)
-{
- int len = 0;
- u8 *pos = NULL;
- u16 active_rates, ret_rates, cck_rates, active_rate_basic;
-#ifdef CONFIG_IWL4965_HT
- struct ieee80211_hw_mode *mode;
-#endif /* CONFIG_IWL4965_HT */
-
- /* Make sure there is enough space for the probe request,
- * two mandatory IEs and the data */
- left -= 24;
- if (left < 0)
- return 0;
- len += 24;
-
- frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
- memcpy(frame->da, iwl4965_broadcast_addr, ETH_ALEN);
- memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
- memcpy(frame->bssid, iwl4965_broadcast_addr, ETH_ALEN);
- frame->seq_ctrl = 0;
-
- /* fill in our indirect SSID IE */
- /* ...next IE... */
-
- left -= 2;
- if (left < 0)
- return 0;
- len += 2;
- pos = &(frame->u.probe_req.variable[0]);
- *pos++ = WLAN_EID_SSID;
- *pos++ = 0;
-
- /* fill in our direct SSID IE... */
- if (is_direct) {
- /* ...next IE... */
- left -= 2 + priv->essid_len;
- if (left < 0)
- return 0;
- /* ... fill it in... */
- *pos++ = WLAN_EID_SSID;
- *pos++ = priv->essid_len;
- memcpy(pos, priv->essid, priv->essid_len);
- pos += priv->essid_len;
- len += 2 + priv->essid_len;
- }
-
- /* fill in supported rate */
- /* ...next IE... */
- left -= 2;
- if (left < 0)
- return 0;
-
- /* ... fill it in... */
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos = 0;
-
- /* exclude 60M rate */
- active_rates = priv->rates_mask;
- active_rates &= ~IWL_RATE_60M_MASK;
-
- active_rate_basic = active_rates & IWL_BASIC_RATES_MASK;
-
- cck_rates = IWL_CCK_RATES_MASK & active_rates;
- ret_rates = iwl4965_supported_rate_to_ie(pos, cck_rates,
- active_rate_basic, &left);
- active_rates &= ~ret_rates;
-
- ret_rates = iwl4965_supported_rate_to_ie(pos, active_rates,
- active_rate_basic, &left);
- active_rates &= ~ret_rates;
-
- len += 2 + *pos;
- pos += (*pos) + 1;
- if (active_rates == 0)
- goto fill_end;
-
- /* fill in supported extended rate */
- /* ...next IE... */
- left -= 2;
- if (left < 0)
- return 0;
- /* ... fill it in... */
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos = 0;
- iwl4965_supported_rate_to_ie(pos, active_rates,
- active_rate_basic, &left);
- if (*pos > 0)
- len += 2 + *pos;
-
-#ifdef CONFIG_IWL4965_HT
- mode = priv->hw->conf.mode;
- if (mode->ht_info.ht_supported) {
- pos += (*pos) + 1;
- *pos++ = WLAN_EID_HT_CAPABILITY;
- *pos++ = sizeof(struct ieee80211_ht_cap);
- iwl4965_set_ht_capab(priv->hw,
- (struct ieee80211_ht_cap *)pos, 0);
- len += 2 + sizeof(struct ieee80211_ht_cap);
- }
-#endif /*CONFIG_IWL4965_HT */
-
- fill_end:
- return (u16)len;
-}
-
-/*
- * QoS support
-*/
-#ifdef CONFIG_IWL4965_QOS
-static int iwl4965_send_qos_params_command(struct iwl4965_priv *priv,
- struct iwl4965_qosparam_cmd *qos)
-{
-
- return iwl4965_send_cmd_pdu(priv, REPLY_QOS_PARAM,
- sizeof(struct iwl4965_qosparam_cmd), qos);
-}
-
-static void iwl4965_reset_qos(struct iwl4965_priv *priv)
-{
- u16 cw_min = 15;
- u16 cw_max = 1023;
- u8 aifs = 2;
- u8 is_legacy = 0;
- unsigned long flags;
- int i;
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->qos_data.qos_active = 0;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) {
- if (priv->qos_data.qos_enable)
- priv->qos_data.qos_active = 1;
- if (!(priv->active_rate & 0xfff0)) {
- cw_min = 31;
- is_legacy = 1;
- }
- } else if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
- if (priv->qos_data.qos_enable)
- priv->qos_data.qos_active = 1;
- } else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) {
- cw_min = 31;
- is_legacy = 1;
- }
-
- if (priv->qos_data.qos_active)
- aifs = 3;
-
- priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
- priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
- priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
- priv->qos_data.def_qos_parm.ac[0].edca_txop = 0;
- priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
-
- if (priv->qos_data.qos_active) {
- i = 1;
- priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
- priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
- priv->qos_data.def_qos_parm.ac[i].aifsn = 7;
- priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
- priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
-
- i = 2;
- priv->qos_data.def_qos_parm.ac[i].cw_min =
- cpu_to_le16((cw_min + 1) / 2 - 1);
- priv->qos_data.def_qos_parm.ac[i].cw_max =
- cpu_to_le16(cw_max);
- priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
- if (is_legacy)
- priv->qos_data.def_qos_parm.ac[i].edca_txop =
- cpu_to_le16(6016);
- else
- priv->qos_data.def_qos_parm.ac[i].edca_txop =
- cpu_to_le16(3008);
- priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
-
- i = 3;
- priv->qos_data.def_qos_parm.ac[i].cw_min =
- cpu_to_le16((cw_min + 1) / 4 - 1);
- priv->qos_data.def_qos_parm.ac[i].cw_max =
- cpu_to_le16((cw_max + 1) / 2 - 1);
- priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
- priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
- if (is_legacy)
- priv->qos_data.def_qos_parm.ac[i].edca_txop =
- cpu_to_le16(3264);
- else
- priv->qos_data.def_qos_parm.ac[i].edca_txop =
- cpu_to_le16(1504);
- } else {
- for (i = 1; i < 4; i++) {
- priv->qos_data.def_qos_parm.ac[i].cw_min =
- cpu_to_le16(cw_min);
- priv->qos_data.def_qos_parm.ac[i].cw_max =
- cpu_to_le16(cw_max);
- priv->qos_data.def_qos_parm.ac[i].aifsn = aifs;
- priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
- priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
- }
- }
- IWL_DEBUG_QOS("set QoS to default \n");
-
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static void iwl4965_activate_qos(struct iwl4965_priv *priv, u8 force)
-{
- unsigned long flags;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- if (!priv->qos_data.qos_enable)
- return;
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->qos_data.def_qos_parm.qos_flags = 0;
-
- if (priv->qos_data.qos_cap.q_AP.queue_request &&
- !priv->qos_data.qos_cap.q_AP.txop_request)
- priv->qos_data.def_qos_parm.qos_flags |=
- QOS_PARAM_FLG_TXOP_TYPE_MSK;
- if (priv->qos_data.qos_active)
- priv->qos_data.def_qos_parm.qos_flags |=
- QOS_PARAM_FLG_UPDATE_EDCA_MSK;
-
-#ifdef CONFIG_IWL4965_HT
- if (priv->current_ht_config.is_ht)
- priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
-#endif /* CONFIG_IWL4965_HT */
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (force || iwl4965_is_associated(priv)) {
- IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
- priv->qos_data.qos_active,
- priv->qos_data.def_qos_parm.qos_flags);
-
- iwl4965_send_qos_params_command(priv,
- &(priv->qos_data.def_qos_parm));
- }
-}
-
-#endif /* CONFIG_IWL4965_QOS */
-/*
- * Power management (not Tx power!) functions
- */
-#define MSEC_TO_USEC 1024
-
-#define NOSLP __constant_cpu_to_le16(0), 0, 0
-#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
-#define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
-#define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
- __constant_cpu_to_le32(X1), \
- __constant_cpu_to_le32(X2), \
- __constant_cpu_to_le32(X3), \
- __constant_cpu_to_le32(X4)}
-
-
-/* default power management (not Tx power) table values */
-/* for tim 0-10 */
-static struct iwl4965_power_vec_entry range_0[IWL_POWER_AC] = {
- {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
- {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
- {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
- {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
- {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
- {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
-};
-
-/* for tim > 10 */
-static struct iwl4965_power_vec_entry range_1[IWL_POWER_AC] = {
- {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
- {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
- SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
- {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
- SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
- {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
- SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
- {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
- {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
- SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
-};
-
-int iwl4965_power_init_handle(struct iwl4965_priv *priv)
-{
- int rc = 0, i;
- struct iwl4965_power_mgr *pow_data;
- int size = sizeof(struct iwl4965_power_vec_entry) * IWL_POWER_AC;
- u16 pci_pm;
-
- IWL_DEBUG_POWER("Initialize power \n");
-
- pow_data = &(priv->power_data);
-
- memset(pow_data, 0, sizeof(*pow_data));
-
- pow_data->active_index = IWL_POWER_RANGE_0;
- pow_data->dtim_val = 0xffff;
-
- memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
- memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
-
- rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
- if (rc != 0)
- return 0;
- else {
- struct iwl4965_powertable_cmd *cmd;
-
- IWL_DEBUG_POWER("adjust power command flags\n");
-
- for (i = 0; i < IWL_POWER_AC; i++) {
- cmd = &pow_data->pwr_range_0[i].cmd;
-
- if (pci_pm & 0x1)
- cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
- else
- cmd->flags |= IWL_POWER_PCI_PM_MSK;
- }
- }
- return rc;
-}
-
-static int iwl4965_update_power_cmd(struct iwl4965_priv *priv,
- struct iwl4965_powertable_cmd *cmd, u32 mode)
-{
- int rc = 0, i;
- u8 skip;
- u32 max_sleep = 0;
- struct iwl4965_power_vec_entry *range;
- u8 period = 0;
- struct iwl4965_power_mgr *pow_data;
-
- if (mode > IWL_POWER_INDEX_5) {
- IWL_DEBUG_POWER("Error invalid power mode \n");
- return -1;
- }
- pow_data = &(priv->power_data);
-
- if (pow_data->active_index == IWL_POWER_RANGE_0)
- range = &pow_data->pwr_range_0[0];
- else
- range = &pow_data->pwr_range_1[1];
-
- memcpy(cmd, &range[mode].cmd, sizeof(struct iwl4965_powertable_cmd));
-
-#ifdef IWL_MAC80211_DISABLE
- if (priv->assoc_network != NULL) {
- unsigned long flags;
-
- period = priv->assoc_network->tim.tim_period;
- }
-#endif /*IWL_MAC80211_DISABLE */
- skip = range[mode].no_dtim;
-
- if (period == 0) {
- period = 1;
- skip = 0;
- }
-
- if (skip == 0) {
- max_sleep = period;
- cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
- } else {
- __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
- max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
- cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
- }
-
- for (i = 0; i < IWL_POWER_VEC_SIZE; i++) {
- if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
- cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
- }
-
- IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
- IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
- IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
- IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
- le32_to_cpu(cmd->sleep_interval[0]),
- le32_to_cpu(cmd->sleep_interval[1]),
- le32_to_cpu(cmd->sleep_interval[2]),
- le32_to_cpu(cmd->sleep_interval[3]),
- le32_to_cpu(cmd->sleep_interval[4]));
-
- return rc;
-}
-
-static int iwl4965_send_power_mode(struct iwl4965_priv *priv, u32 mode)
-{
- u32 uninitialized_var(final_mode);
- int rc;
- struct iwl4965_powertable_cmd cmd;
-
- /* If on battery, set to 3,
- * if plugged into AC power, set to CAM ("continuously aware mode"),
- * else user level */
- switch (mode) {
- case IWL_POWER_BATTERY:
- final_mode = IWL_POWER_INDEX_3;
- break;
- case IWL_POWER_AC:
- final_mode = IWL_POWER_MODE_CAM;
- break;
- default:
- final_mode = mode;
- break;
- }
-
- cmd.keep_alive_beacons = 0;
-
- iwl4965_update_power_cmd(priv, &cmd, final_mode);
-
- rc = iwl4965_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd);
-
- if (final_mode == IWL_POWER_MODE_CAM)
- clear_bit(STATUS_POWER_PMI, &priv->status);
- else
- set_bit(STATUS_POWER_PMI, &priv->status);
-
- return rc;
-}
-
-int iwl4965_is_network_packet(struct iwl4965_priv *priv, struct ieee80211_hdr *header)
-{
- /* Filter incoming packets to determine if they are targeted toward
- * this network, discarding packets coming from ourselves */
- switch (priv->iw_mode) {
- case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */
- /* packets from our adapter are dropped (echo) */
- if (!compare_ether_addr(header->addr2, priv->mac_addr))
- return 0;
- /* {broad,multi}cast packets to our IBSS go through */
- if (is_multicast_ether_addr(header->addr1))
- return !compare_ether_addr(header->addr3, priv->bssid);
- /* packets to our adapter go through */
- return !compare_ether_addr(header->addr1, priv->mac_addr);
- case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */
- /* packets from our adapter are dropped (echo) */
- if (!compare_ether_addr(header->addr3, priv->mac_addr))
- return 0;
- /* {broad,multi}cast packets to our BSS go through */
- if (is_multicast_ether_addr(header->addr1))
- return !compare_ether_addr(header->addr2, priv->bssid);
- /* packets to our adapter go through */
- return !compare_ether_addr(header->addr1, priv->mac_addr);
- }
-
- return 1;
-}
-
-#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
-
-static const char *iwl4965_get_tx_fail_reason(u32 status)
-{
- switch (status & TX_STATUS_MSK) {
- case TX_STATUS_SUCCESS:
- return "SUCCESS";
- TX_STATUS_ENTRY(SHORT_LIMIT);
- TX_STATUS_ENTRY(LONG_LIMIT);
- TX_STATUS_ENTRY(FIFO_UNDERRUN);
- TX_STATUS_ENTRY(MGMNT_ABORT);
- TX_STATUS_ENTRY(NEXT_FRAG);
- TX_STATUS_ENTRY(LIFE_EXPIRE);
- TX_STATUS_ENTRY(DEST_PS);
- TX_STATUS_ENTRY(ABORTED);
- TX_STATUS_ENTRY(BT_RETRY);
- TX_STATUS_ENTRY(STA_INVALID);
- TX_STATUS_ENTRY(FRAG_DROPPED);
- TX_STATUS_ENTRY(TID_DISABLE);
- TX_STATUS_ENTRY(FRAME_FLUSHED);
- TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
- TX_STATUS_ENTRY(TX_LOCKED);
- TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
- }
-
- return "UNKNOWN";
-}
-
-/**
- * iwl4965_scan_cancel - Cancel any currently executing HW scan
- *
- * NOTE: priv->mutex is not required before calling this function
- */
-static int iwl4965_scan_cancel(struct iwl4965_priv *priv)
-{
- if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
- clear_bit(STATUS_SCANNING, &priv->status);
- return 0;
- }
-
- if (test_bit(STATUS_SCANNING, &priv->status)) {
- if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_SCAN("Queuing scan abort.\n");
- set_bit(STATUS_SCAN_ABORTING, &priv->status);
- queue_work(priv->workqueue, &priv->abort_scan);
-
- } else
- IWL_DEBUG_SCAN("Scan abort already in progress.\n");
-
- return test_bit(STATUS_SCANNING, &priv->status);
- }
-
- return 0;
-}
-
-/**
- * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
- * @ms: amount of time to wait (in milliseconds) for scan to abort
- *
- * NOTE: priv->mutex must be held before calling this function
- */
-static int iwl4965_scan_cancel_timeout(struct iwl4965_priv *priv, unsigned long ms)
-{
- unsigned long now = jiffies;
- int ret;
-
- ret = iwl4965_scan_cancel(priv);
- if (ret && ms) {
- mutex_unlock(&priv->mutex);
- while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
- test_bit(STATUS_SCANNING, &priv->status))
- msleep(1);
- mutex_lock(&priv->mutex);
-
- return test_bit(STATUS_SCANNING, &priv->status);
- }
-
- return ret;
-}
-
-static void iwl4965_sequence_reset(struct iwl4965_priv *priv)
-{
- /* Reset ieee stats */
-
- /* We don't reset the net_device_stats (ieee->stats) on
- * re-association */
-
- priv->last_seq_num = -1;
- priv->last_frag_num = -1;
- priv->last_packet_time = 0;
-
- iwl4965_scan_cancel(priv);
-}
-
-#define MAX_UCODE_BEACON_INTERVAL 4096
-#define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
-
-static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val)
-{
- u16 new_val = 0;
- u16 beacon_factor = 0;
-
- beacon_factor =
- (beacon_val + MAX_UCODE_BEACON_INTERVAL)
- / MAX_UCODE_BEACON_INTERVAL;
- new_val = beacon_val / beacon_factor;
-
- return cpu_to_le16(new_val);
-}
-
-static void iwl4965_setup_rxon_timing(struct iwl4965_priv *priv)
-{
- u64 interval_tm_unit;
- u64 tsf, result;
- unsigned long flags;
- struct ieee80211_conf *conf = NULL;
- u16 beacon_int = 0;
-
- conf = ieee80211_get_hw_conf(priv->hw);
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp1);
- priv->rxon_timing.timestamp.dw[0] = cpu_to_le32(priv->timestamp0);
-
- priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
-
- tsf = priv->timestamp1;
- tsf = ((tsf << 32) | priv->timestamp0);
-
- beacon_int = priv->beacon_int;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
- if (beacon_int == 0) {
- priv->rxon_timing.beacon_interval = cpu_to_le16(100);
- priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
- } else {
- priv->rxon_timing.beacon_interval =
- cpu_to_le16(beacon_int);
- priv->rxon_timing.beacon_interval =
- iwl4965_adjust_beacon_interval(
- le16_to_cpu(priv->rxon_timing.beacon_interval));
- }
-
- priv->rxon_timing.atim_window = 0;
- } else {
- priv->rxon_timing.beacon_interval =
- iwl4965_adjust_beacon_interval(conf->beacon_int);
- /* TODO: we need to get atim_window from upper stack
- * for now we set to 0 */
- priv->rxon_timing.atim_window = 0;
- }
-
- interval_tm_unit =
- (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
- result = do_div(tsf, interval_tm_unit);
- priv->rxon_timing.beacon_init_val =
- cpu_to_le32((u32) ((u64) interval_tm_unit - result));
-
- IWL_DEBUG_ASSOC
- ("beacon interval %d beacon timer %d beacon tim %d\n",
- le16_to_cpu(priv->rxon_timing.beacon_interval),
- le32_to_cpu(priv->rxon_timing.beacon_init_val),
- le16_to_cpu(priv->rxon_timing.atim_window));
-}
-
-static int iwl4965_scan_initiate(struct iwl4965_priv *priv)
-{
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
- IWL_ERROR("APs don't scan.\n");
- return 0;
- }
-
- if (!iwl4965_is_ready_rf(priv)) {
- IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
- return -EIO;
- }
-
- if (test_bit(STATUS_SCANNING, &priv->status)) {
- IWL_DEBUG_SCAN("Scan already in progress.\n");
- return -EAGAIN;
- }
-
- if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_SCAN("Scan request while abort pending. "
- "Queuing.\n");
- return -EAGAIN;
- }
-
- IWL_DEBUG_INFO("Starting scan...\n");
- priv->scan_bands = 2;
- set_bit(STATUS_SCANNING, &priv->status);
- priv->scan_start = jiffies;
- priv->scan_pass_start = priv->scan_start;
-
- queue_work(priv->workqueue, &priv->request_scan);
-
- return 0;
-}
-
-static int iwl4965_set_rxon_hwcrypto(struct iwl4965_priv *priv, int hw_decrypt)
-{
- struct iwl4965_rxon_cmd *rxon = &priv->staging_rxon;
-
- if (hw_decrypt)
- rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
- else
- rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
-
- return 0;
-}
-
-static void iwl4965_set_flags_for_phymode(struct iwl4965_priv *priv, u8 phymode)
-{
- if (phymode == MODE_IEEE80211A) {
- priv->staging_rxon.flags &=
- ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
- | RXON_FLG_CCK_MSK);
- priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
- } else {
- /* Copied from iwl4965_bg_post_associate() */
- if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
- priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
- else
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
- priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
- priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
- }
-}
-
-/*
- * initialize rxon structure with default values from eeprom
- */
-static void iwl4965_connection_init_rx_config(struct iwl4965_priv *priv)
-{
- const struct iwl4965_channel_info *ch_info;
-
- memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
-
- switch (priv->iw_mode) {
- case IEEE80211_IF_TYPE_AP:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
- break;
-
- case IEEE80211_IF_TYPE_STA:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
- priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
- break;
-
- case IEEE80211_IF_TYPE_IBSS:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
- priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
- priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
- RXON_FILTER_ACCEPT_GRP_MSK;
- break;
-
- case IEEE80211_IF_TYPE_MNTR:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
- priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
- RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
- break;
- }
-
-#if 0
- /* TODO: Figure out when short_preamble would be set and cache from
- * that */
- if (!hw_to_local(priv->hw)->short_preamble)
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
-#endif
-
- ch_info = iwl4965_get_channel_info(priv, priv->phymode,
- le16_to_cpu(priv->staging_rxon.channel));
-
- if (!ch_info)
- ch_info = &priv->channel_info[0];
-
- /*
- * in some case A channels are all non IBSS
- * in this case force B/G channel
- */
- if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
- !(is_channel_ibss(ch_info)))
- ch_info = &priv->channel_info[0];
-
- priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
- if (is_channel_a_band(ch_info))
- priv->phymode = MODE_IEEE80211A;
- else
- priv->phymode = MODE_IEEE80211G;
-
- iwl4965_set_flags_for_phymode(priv, priv->phymode);
-
- priv->staging_rxon.ofdm_basic_rates =
- (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
- priv->staging_rxon.cck_basic_rates =
- (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-
- priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
- RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
- memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
- memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
- priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
- priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
- iwl4965_set_rxon_chain(priv);
-}
-
-static int iwl4965_set_mode(struct iwl4965_priv *priv, int mode)
-{
- if (mode == IEEE80211_IF_TYPE_IBSS) {
- const struct iwl4965_channel_info *ch_info;
-
- ch_info = iwl4965_get_channel_info(priv,
- priv->phymode,
- le16_to_cpu(priv->staging_rxon.channel));
-
- if (!ch_info || !is_channel_ibss(ch_info)) {
- IWL_ERROR("channel %d not IBSS channel\n",
- le16_to_cpu(priv->staging_rxon.channel));
- return -EINVAL;
- }
- }
-
- priv->iw_mode = mode;
-
- iwl4965_connection_init_rx_config(priv);
- memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
-
- iwl4965_clear_stations_table(priv);
-
- /* dont commit rxon if rf-kill is on*/
- if (!iwl4965_is_ready_rf(priv))
- return -EAGAIN;
-
- cancel_delayed_work(&priv->scan_check);
- if (iwl4965_scan_cancel_timeout(priv, 100)) {
- IWL_WARNING("Aborted scan still in progress after 100ms\n");
- IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
- return -EAGAIN;
- }
-
- iwl4965_commit_rxon(priv);
-
- return 0;
-}
-
-static void iwl4965_build_tx_cmd_hwcrypto(struct iwl4965_priv *priv,
- struct ieee80211_tx_control *ctl,
- struct iwl4965_cmd *cmd,
- struct sk_buff *skb_frag,
- int last_frag)
-{
- struct iwl4965_hw_key *keyinfo = &priv->stations[ctl->key_idx].keyinfo;
-
- switch (keyinfo->alg) {
- case ALG_CCMP:
- cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM;
- memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen);
- IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
- break;
-
- case ALG_TKIP:
-#if 0
- cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP;
-
- if (last_frag)
- memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8,
- 8);
- else
- memset(cmd->cmd.tx.tkip_mic.byte, 0, 8);
-#endif
- break;
-
- case ALG_WEP:
- cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP |
- (ctl->key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
-
- if (keyinfo->keylen == 13)
- cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
-
- memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen);
-
- IWL_DEBUG_TX("Configuring packet for WEP encryption "
- "with key %d\n", ctl->key_idx);
- break;
-
- default:
- printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg);
- break;
- }
-}
-
-/*
- * handle build REPLY_TX command notification.
- */
-static void iwl4965_build_tx_cmd_basic(struct iwl4965_priv *priv,
- struct iwl4965_cmd *cmd,
- struct ieee80211_tx_control *ctrl,
- struct ieee80211_hdr *hdr,
- int is_unicast, u8 std_id)
-{
- __le16 *qc;
- u16 fc = le16_to_cpu(hdr->frame_control);
- __le32 tx_flags = cmd->cmd.tx.tx_flags;
-
- cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
- if (!(ctrl->flags & IEEE80211_TXCTL_NO_ACK)) {
- tx_flags |= TX_CMD_FLG_ACK_MSK;
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- if (ieee80211_is_probe_response(fc) &&
- !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
- tx_flags |= TX_CMD_FLG_TSF_MSK;
- } else {
- tx_flags &= (~TX_CMD_FLG_ACK_MSK);
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- }
-
- if (ieee80211_is_back_request(fc))
- tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK;
-
-
- cmd->cmd.tx.sta_id = std_id;
- if (ieee80211_get_morefrag(hdr))
- tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
-
- qc = ieee80211_get_qos_ctrl(hdr);
- if (qc) {
- cmd->cmd.tx.tid_tspec = (u8) (le16_to_cpu(*qc) & 0xf);
- tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
- } else
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
-
- if (ctrl->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
- tx_flags |= TX_CMD_FLG_RTS_MSK;
- tx_flags &= ~TX_CMD_FLG_CTS_MSK;
- } else if (ctrl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
- tx_flags &= ~TX_CMD_FLG_RTS_MSK;
- tx_flags |= TX_CMD_FLG_CTS_MSK;
- }
-
- if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
- tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
-
- tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
- if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ ||
- (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
- cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3);
- else
- cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2);
- } else
- cmd->cmd.tx.timeout.pm_frame_timeout = 0;
-
- cmd->cmd.tx.driver_txop = 0;
- cmd->cmd.tx.tx_flags = tx_flags;
- cmd->cmd.tx.next_frame_len = 0;
-}
-
-/**
- * iwl4965_get_sta_id - Find station's index within station table
- *
- * If new IBSS station, create new entry in station table
- */
-static int iwl4965_get_sta_id(struct iwl4965_priv *priv,
- struct ieee80211_hdr *hdr)
-{
- int sta_id;
- u16 fc = le16_to_cpu(hdr->frame_control);
- DECLARE_MAC_BUF(mac);
-
- /* If this frame is broadcast or management, use broadcast station id */
- if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
- is_multicast_ether_addr(hdr->addr1))
- return priv->hw_setting.bcast_sta_id;
-
- switch (priv->iw_mode) {
-
- /* If we are a client station in a BSS network, use the special
- * AP station entry (that's the only station we communicate with) */
- case IEEE80211_IF_TYPE_STA:
- return IWL_AP_ID;
-
- /* If we are an AP, then find the station, or use BCAST */
- case IEEE80211_IF_TYPE_AP:
- sta_id = iwl4965_hw_find_station(priv, hdr->addr1);
- if (sta_id != IWL_INVALID_STATION)
- return sta_id;
- return priv->hw_setting.bcast_sta_id;
-
- /* If this frame is going out to an IBSS network, find the station,
- * or create a new station table entry */
- case IEEE80211_IF_TYPE_IBSS:
- sta_id = iwl4965_hw_find_station(priv, hdr->addr1);
- if (sta_id != IWL_INVALID_STATION)
- return sta_id;
-
- /* Create new station table entry */
- sta_id = iwl4965_add_station_flags(priv, hdr->addr1,
- 0, CMD_ASYNC, NULL);
-
- if (sta_id != IWL_INVALID_STATION)
- return sta_id;
-
- IWL_DEBUG_DROP("Station %s not in station map. "
- "Defaulting to broadcast...\n",
- print_mac(mac, hdr->addr1));
- iwl4965_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
- return priv->hw_setting.bcast_sta_id;
-
- default:
- IWL_WARNING("Unknown mode of operation: %d", priv->iw_mode);
- return priv->hw_setting.bcast_sta_id;
- }
-}
-
-/*
- * start REPLY_TX command process
- */
-static int iwl4965_tx_skb(struct iwl4965_priv *priv,
- struct sk_buff *skb, struct ieee80211_tx_control *ctl)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct iwl4965_tfd_frame *tfd;
- u32 *control_flags;
- int txq_id = ctl->queue;
- struct iwl4965_tx_queue *txq = NULL;
- struct iwl4965_queue *q = NULL;
- dma_addr_t phys_addr;
- dma_addr_t txcmd_phys;
- dma_addr_t scratch_phys;
- struct iwl4965_cmd *out_cmd = NULL;
- u16 len, idx, len_org;
- u8 id, hdr_len, unicast;
- u8 sta_id;
- u16 seq_number = 0;
- u16 fc;
- __le16 *qc;
- u8 wait_write_ptr = 0;
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&priv->lock, flags);
- if (iwl4965_is_rfkill(priv)) {
- IWL_DEBUG_DROP("Dropping - RF KILL\n");
- goto drop_unlock;
- }
-
- if (!priv->vif) {
- IWL_DEBUG_DROP("Dropping - !priv->vif\n");
- goto drop_unlock;
- }
-
- if ((ctl->tx_rate & 0xFF) == IWL_INVALID_RATE) {
- IWL_ERROR("ERROR: No TX rate available.\n");
- goto drop_unlock;
- }
-
- unicast = !is_multicast_ether_addr(hdr->addr1);
- id = 0;
-
- fc = le16_to_cpu(hdr->frame_control);
-
-#ifdef CONFIG_IWL4965_DEBUG
- if (ieee80211_is_auth(fc))
- IWL_DEBUG_TX("Sending AUTH frame\n");
- else if (ieee80211_is_assoc_request(fc))
- IWL_DEBUG_TX("Sending ASSOC frame\n");
- else if (ieee80211_is_reassoc_request(fc))
- IWL_DEBUG_TX("Sending REASSOC frame\n");
-#endif
-
- /* drop all data frame if we are not associated */
- if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
- (!iwl4965_is_associated(priv) ||
- ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id) ||
- !priv->assoc_station_added)) {
- IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
- goto drop_unlock;
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- hdr_len = ieee80211_get_hdrlen(fc);
-
- /* Find (or create) index into station table for destination station */
- sta_id = iwl4965_get_sta_id(priv, hdr);
- if (sta_id == IWL_INVALID_STATION) {
- DECLARE_MAC_BUF(mac);
-
- IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
- print_mac(mac, hdr->addr1));
- goto drop;
- }
-
- IWL_DEBUG_RATE("station Id %d\n", sta_id);
-
- qc = ieee80211_get_qos_ctrl(hdr);
- if (qc) {
- u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
- seq_number = priv->stations[sta_id].tid[tid].seq_number &
- IEEE80211_SCTL_SEQ;
- hdr->seq_ctrl = cpu_to_le16(seq_number) |
- (hdr->seq_ctrl &
- __constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
- seq_number += 0x10;
-#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
- /* aggregation is on for this <sta,tid> */
- if (ctl->flags & IEEE80211_TXCTL_HT_MPDU_AGG)
- txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
-#endif /* CONFIG_IWL4965_HT_AGG */
-#endif /* CONFIG_IWL4965_HT */
- }
-
- /* Descriptor for chosen Tx queue */
- txq = &priv->txq[txq_id];
- q = &txq->q;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Set up first empty TFD within this queue's circular TFD buffer */
- tfd = &txq->bd[q->write_ptr];
- memset(tfd, 0, sizeof(*tfd));
- control_flags = (u32 *) tfd;
- idx = get_cmd_index(q, q->write_ptr, 0);
-
- /* Set up driver data for this TFD */
- memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl4965_tx_info));
- txq->txb[q->write_ptr].skb[0] = skb;
- memcpy(&(txq->txb[q->write_ptr].status.control),
- ctl, sizeof(struct ieee80211_tx_control));
-
- /* Set up first empty entry in queue's array of Tx/cmd buffers */
- out_cmd = &txq->cmd[idx];
- memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
- memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
-
- /*
- * Set up the Tx-command (not MAC!) header.
- * Store the chosen Tx queue and TFD index within the sequence field;
- * after Tx, uCode's Tx response will return this value so driver can
- * locate the frame within the tx queue and do post-tx processing.
- */
- out_cmd->hdr.cmd = REPLY_TX;
- out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
- INDEX_TO_SEQ(q->write_ptr)));
-
- /* Copy MAC header from skb into command buffer */
- memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
-
- /*
- * Use the first empty entry in this queue's command buffer array
- * to contain the Tx command and MAC header concatenated together
- * (payload data will be in another buffer).
- * Size of this varies, due to varying MAC header length.
- * If end is not dword aligned, we'll have 2 extra bytes at the end
- * of the MAC header (device reads on dword boundaries).
- * We'll tell device about this padding later.
- */
- len = priv->hw_setting.tx_cmd_len +
- sizeof(struct iwl4965_cmd_header) + hdr_len;
-
- len_org = len;
- len = (len + 3) & ~3;
-
- if (len_org != len)
- len_org = 1;
- else
- len_org = 0;
-
- /* Physical address of this Tx command's header (not MAC header!),
- * within command buffer array. */
- txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl4965_cmd) * idx +
- offsetof(struct iwl4965_cmd, hdr);
-
- /* Add buffer containing Tx command and MAC(!) header to TFD's
- * first entry */
- iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
-
- if (!(ctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
- iwl4965_build_tx_cmd_hwcrypto(priv, ctl, out_cmd, skb, 0);
-
- /* Set up TFD's 2nd entry to point directly to remainder of skb,
- * if any (802.11 null frames have no payload). */
- len = skb->len - hdr_len;
- if (len) {
- phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
- len, PCI_DMA_TODEVICE);
- iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
- }
-
- /* Tell 4965 about any 2-byte padding after MAC header */
- if (len_org)
- out_cmd->cmd.tx.tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
-
- /* Total # bytes to be transmitted */
- len = (u16)skb->len;
- out_cmd->cmd.tx.len = cpu_to_le16(len);
-
- /* TODO need this for burst mode later on */
- iwl4965_build_tx_cmd_basic(priv, out_cmd, ctl, hdr, unicast, sta_id);
-
- /* set is_hcca to 0; it probably will never be implemented */
- iwl4965_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0);
-
- scratch_phys = txcmd_phys + sizeof(struct iwl4965_cmd_header) +
- offsetof(struct iwl4965_tx_cmd, scratch);
- out_cmd->cmd.tx.dram_lsb_ptr = cpu_to_le32(scratch_phys);
- out_cmd->cmd.tx.dram_msb_ptr = iwl_get_dma_hi_address(scratch_phys);
-
-#ifdef CONFIG_IWL4965_HT_AGG
-#ifdef CONFIG_IWL4965_HT
- /* TODO: move this functionality to rate scaling */
- iwl4965_tl_get_stats(priv, hdr);
-#endif /* CONFIG_IWL4965_HT_AGG */
-#endif /*CONFIG_IWL4965_HT */
-
-
- if (!ieee80211_get_morefrag(hdr)) {
- txq->need_update = 1;
- if (qc) {
- u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
- priv->stations[sta_id].tid[tid].seq_number = seq_number;
- }
- } else {
- wait_write_ptr = 1;
- txq->need_update = 0;
- }
-
- iwl4965_print_hex_dump(IWL_DL_TX, out_cmd->cmd.payload,
- sizeof(out_cmd->cmd.tx));
-
- iwl4965_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr,
- ieee80211_get_hdrlen(fc));
-
- /* Set up entry for this TFD in Tx byte-count array */
- iwl4965_tx_queue_update_wr_ptr(priv, txq, len);
-
- /* Tell device the write index *just past* this latest filled TFD */
- q->write_ptr = iwl4965_queue_inc_wrap(q->write_ptr, q->n_bd);
- rc = iwl4965_tx_queue_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (rc)
- return rc;
-
- if ((iwl4965_queue_space(q) < q->high_mark)
- && priv->mac80211_registered) {
- if (wait_write_ptr) {
- spin_lock_irqsave(&priv->lock, flags);
- txq->need_update = 1;
- iwl4965_tx_queue_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
- }
-
- ieee80211_stop_queue(priv->hw, ctl->queue);
- }
-
- return 0;
-
-drop_unlock:
- spin_unlock_irqrestore(&priv->lock, flags);
-drop:
- return -1;
-}
-
-static void iwl4965_set_rate(struct iwl4965_priv *priv)
-{
- const struct ieee80211_hw_mode *hw = NULL;
- struct ieee80211_rate *rate;
- int i;
-
- hw = iwl4965_get_hw_mode(priv, priv->phymode);
- if (!hw) {
- IWL_ERROR("Failed to set rate: unable to get hw mode\n");
- return;
- }
-
- priv->active_rate = 0;
- priv->active_rate_basic = 0;
-
- IWL_DEBUG_RATE("Setting rates for 802.11%c\n",
- hw->mode == MODE_IEEE80211A ?
- 'a' : ((hw->mode == MODE_IEEE80211B) ? 'b' : 'g'));
-
- for (i = 0; i < hw->num_rates; i++) {
- rate = &(hw->rates[i]);
- if ((rate->val < IWL_RATE_COUNT) &&
- (rate->flags & IEEE80211_RATE_SUPPORTED)) {
- IWL_DEBUG_RATE("Adding rate index %d (plcp %d)%s\n",
- rate->val, iwl4965_rates[rate->val].plcp,
- (rate->flags & IEEE80211_RATE_BASIC) ?
- "*" : "");
- priv->active_rate |= (1 << rate->val);
- if (rate->flags & IEEE80211_RATE_BASIC)
- priv->active_rate_basic |= (1 << rate->val);
- } else
- IWL_DEBUG_RATE("Not adding rate %d (plcp %d)\n",
- rate->val, iwl4965_rates[rate->val].plcp);
- }
-
- IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
- priv->active_rate, priv->active_rate_basic);
-
- /*
- * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
- * otherwise set it to the default of all CCK rates and 6, 12, 24 for
- * OFDM
- */
- if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
- priv->staging_rxon.cck_basic_rates =
- ((priv->active_rate_basic &
- IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
- else
- priv->staging_rxon.cck_basic_rates =
- (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-
- if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
- priv->staging_rxon.ofdm_basic_rates =
- ((priv->active_rate_basic &
- (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
- IWL_FIRST_OFDM_RATE) & 0xFF;
- else
- priv->staging_rxon.ofdm_basic_rates =
- (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
-}
-
-static void iwl4965_radio_kill_sw(struct iwl4965_priv *priv, int disable_radio)
-{
- unsigned long flags;
-
- if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
- return;
-
- IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
- disable_radio ? "OFF" : "ON");
-
- if (disable_radio) {
- iwl4965_scan_cancel(priv);
- /* FIXME: This is a workaround for AP */
- if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
- spin_lock_irqsave(&priv->lock, flags);
- iwl4965_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_SW_BIT_RFKILL);
- spin_unlock_irqrestore(&priv->lock, flags);
- iwl4965_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0);
- set_bit(STATUS_RF_KILL_SW, &priv->status);
- }
- return;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-
- clear_bit(STATUS_RF_KILL_SW, &priv->status);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* wake up ucode */
- msleep(10);
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl4965_read32(priv, CSR_UCODE_DRV_GP1);
- if (!iwl4965_grab_nic_access(priv))
- iwl4965_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
- IWL_DEBUG_RF_KILL("Can not turn radio back on - "
- "disabled by HW switch\n");
- return;
- }
-
- queue_work(priv->workqueue, &priv->restart);
- return;
-}
-
-void iwl4965_set_decrypted_flag(struct iwl4965_priv *priv, struct sk_buff *skb,
- u32 decrypt_res, struct ieee80211_rx_status *stats)
-{
- u16 fc =
- le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control);
-
- if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
- return;
-
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return;
-
- IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
- switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
- case RX_RES_STATUS_SEC_TYPE_TKIP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_BAD_ICV_MIC)
- stats->flag |= RX_FLAG_MMIC_ERROR;
- case RX_RES_STATUS_SEC_TYPE_WEP:
- case RX_RES_STATUS_SEC_TYPE_CCMP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_DECRYPT_OK) {
- IWL_DEBUG_RX("hw decrypt successfully!!!\n");
- stats->flag |= RX_FLAG_DECRYPTED;
- }
- break;
-
- default:
- break;
- }
-}
-
-
-#define IWL_PACKET_RETRY_TIME HZ
-
-int iwl4965_is_duplicate_packet(struct iwl4965_priv *priv, struct ieee80211_hdr *header)
-{
- u16 sc = le16_to_cpu(header->seq_ctrl);
- u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
- u16 frag = sc & IEEE80211_SCTL_FRAG;
- u16 *last_seq, *last_frag;
- unsigned long *last_time;
-
- switch (priv->iw_mode) {
- case IEEE80211_IF_TYPE_IBSS:{
- struct list_head *p;
- struct iwl4965_ibss_seq *entry = NULL;
- u8 *mac = header->addr2;
- int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1);
-
- __list_for_each(p, &priv->ibss_mac_hash[index]) {
- entry = list_entry(p, struct iwl4965_ibss_seq, list);
- if (!compare_ether_addr(entry->mac, mac))
- break;
- }
- if (p == &priv->ibss_mac_hash[index]) {
- entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
- if (!entry) {
- IWL_ERROR("Cannot malloc new mac entry\n");
- return 0;
- }
- memcpy(entry->mac, mac, ETH_ALEN);
- entry->seq_num = seq;
- entry->frag_num = frag;
- entry->packet_time = jiffies;
- list_add(&entry->list, &priv->ibss_mac_hash[index]);
- return 0;
- }
- last_seq = &entry->seq_num;
- last_frag = &entry->frag_num;
- last_time = &entry->packet_time;
- break;
- }
- case IEEE80211_IF_TYPE_STA:
- last_seq = &priv->last_seq_num;
- last_frag = &priv->last_frag_num;
- last_time = &priv->last_packet_time;
- break;
- default:
- return 0;
- }
- if ((*last_seq == seq) &&
- time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) {
- if (*last_frag == frag)
- goto drop;
- if (*last_frag + 1 != frag)
- /* out-of-order fragment */
- goto drop;
- } else
- *last_seq = seq;
-
- *last_frag = frag;
- *last_time = jiffies;
- return 0;
-
- drop:
- return 1;
-}
-
-#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
-
-#include "iwl-spectrum.h"
-
-#define BEACON_TIME_MASK_LOW 0x00FFFFFF
-#define BEACON_TIME_MASK_HIGH 0xFF000000
-#define TIME_UNIT 1024
-
-/*
- * extended beacon time format
- * time in usec will be changed into a 32-bit value in 8:24 format
- * the high 1 byte is the beacon counts
- * the lower 3 bytes is the time in usec within one beacon interval
- */
-
-static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval)
-{
- u32 quot;
- u32 rem;
- u32 interval = beacon_interval * 1024;
-
- if (!interval || !usec)
- return 0;
-
- quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
- rem = (usec % interval) & BEACON_TIME_MASK_LOW;
-
- return (quot << 24) + rem;
-}
-
-/* base is usually what we get from ucode with each received frame,
- * the same as HW timer counter counting down
- */
-
-static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
-{
- u32 base_low = base & BEACON_TIME_MASK_LOW;
- u32 addon_low = addon & BEACON_TIME_MASK_LOW;
- u32 interval = beacon_interval * TIME_UNIT;
- u32 res = (base & BEACON_TIME_MASK_HIGH) +
- (addon & BEACON_TIME_MASK_HIGH);
-
- if (base_low > addon_low)
- res += base_low - addon_low;
- else if (base_low < addon_low) {
- res += interval + base_low - addon_low;
- res += (1 << 24);
- } else
- res += (1 << 24);
-
- return cpu_to_le32(res);
-}
-
-static int iwl4965_get_measurement(struct iwl4965_priv *priv,
- struct ieee80211_measurement_params *params,
- u8 type)
-{
- struct iwl4965_spectrum_cmd spectrum;
- struct iwl4965_rx_packet *res;
- struct iwl4965_host_cmd cmd = {
- .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
- .data = (void *)&spectrum,
- .meta.flags = CMD_WANT_SKB,
- };
- u32 add_time = le64_to_cpu(params->start_time);
- int rc;
- int spectrum_resp_status;
- int duration = le16_to_cpu(params->duration);
-
- if (iwl4965_is_associated(priv))
- add_time =
- iwl4965_usecs_to_beacons(
- le64_to_cpu(params->start_time) - priv->last_tsf,
- le16_to_cpu(priv->rxon_timing.beacon_interval));
-
- memset(&spectrum, 0, sizeof(spectrum));
-
- spectrum.channel_count = cpu_to_le16(1);
- spectrum.flags =
- RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
- spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
- cmd.len = sizeof(spectrum);
- spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
-
- if (iwl4965_is_associated(priv))
- spectrum.start_time =
- iwl4965_add_beacon_time(priv->last_beacon_time,
- add_time,
- le16_to_cpu(priv->rxon_timing.beacon_interval));
- else
- spectrum.start_time = 0;
-
- spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
- spectrum.channels[0].channel = params->channel;
- spectrum.channels[0].type = type;
- if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
- spectrum.flags |= RXON_FLG_BAND_24G_MSK |
- RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
-
- rc = iwl4965_send_cmd_sync(priv, &cmd);
- if (rc)
- return rc;
-
- res = (struct iwl4965_rx_packet *)cmd.meta.u.skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
- rc = -EIO;
- }
-
- spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
- switch (spectrum_resp_status) {
- case 0: /* Command will be handled */
- if (res->u.spectrum.id != 0xff) {
- IWL_DEBUG_INFO
- ("Replaced existing measurement: %d\n",
- res->u.spectrum.id);
- priv->measurement_status &= ~MEASUREMENT_READY;
- }
- priv->measurement_status |= MEASUREMENT_ACTIVE;
- rc = 0;
- break;
-
- case 1: /* Command will not be handled */
- rc = -EAGAIN;
- break;
- }
-
- dev_kfree_skb_any(cmd.meta.u.skb);
-
- return rc;
-}
-#endif
-
-static void iwl4965_txstatus_to_ieee(struct iwl4965_priv *priv,
- struct iwl4965_tx_info *tx_sta)
-{
-
- tx_sta->status.ack_signal = 0;
- tx_sta->status.excessive_retries = 0;
- tx_sta->status.queue_length = 0;
- tx_sta->status.queue_number = 0;
-
- if (in_interrupt())
- ieee80211_tx_status_irqsafe(priv->hw,
- tx_sta->skb[0], &(tx_sta->status));
- else
- ieee80211_tx_status(priv->hw,
- tx_sta->skb[0], &(tx_sta->status));
-
- tx_sta->skb[0] = NULL;
-}
-
-/**
- * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
- *
- * When FW advances 'R' index, all entries between old and new 'R' index
- * need to be reclaimed. As result, some free space forms. If there is
- * enough free space (> low mark), wake the stack that feeds us.
- */
-int iwl4965_tx_queue_reclaim(struct iwl4965_priv *priv, int txq_id, int index)
-{
- struct iwl4965_tx_queue *txq = &priv->txq[txq_id];
- struct iwl4965_queue *q = &txq->q;
- int nfreed = 0;
-
- if ((index >= q->n_bd) || (x2_queue_used(q, index) == 0)) {
- IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
- "is out of range [0-%d] %d %d.\n", txq_id,
- index, q->n_bd, q->write_ptr, q->read_ptr);
- return 0;
- }
-
- for (index = iwl4965_queue_inc_wrap(index, q->n_bd);
- q->read_ptr != index;
- q->read_ptr = iwl4965_queue_inc_wrap(q->read_ptr, q->n_bd)) {
- if (txq_id != IWL_CMD_QUEUE_NUM) {
- iwl4965_txstatus_to_ieee(priv,
- &(txq->txb[txq->q.read_ptr]));
- iwl4965_hw_txq_free_tfd(priv, txq);
- } else if (nfreed > 1) {
- IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index,
- q->write_ptr, q->read_ptr);
- queue_work(priv->workqueue, &priv->restart);
- }
- nfreed++;
- }
-
- if (iwl4965_queue_space(q) > q->low_mark && (txq_id >= 0) &&
- (txq_id != IWL_CMD_QUEUE_NUM) &&
- priv->mac80211_registered)
- ieee80211_wake_queue(priv->hw, txq_id);
-
-
- return nfreed;
-}
-
-static int iwl4965_is_tx_success(u32 status)
-{
- status &= TX_STATUS_MSK;
- return (status == TX_STATUS_SUCCESS)
- || (status == TX_STATUS_DIRECT_DONE);
-}
-
-/******************************************************************************
- *
- * Generic RX handler implementations
- *
- ******************************************************************************/
-#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
-
-static inline int iwl4965_get_ra_sta_id(struct iwl4965_priv *priv,
- struct ieee80211_hdr *hdr)
-{
- if (priv->iw_mode == IEEE80211_IF_TYPE_STA)
- return IWL_AP_ID;
- else {
- u8 *da = ieee80211_get_DA(hdr);
- return iwl4965_hw_find_station(priv, da);
- }
-}
-
-static struct ieee80211_hdr *iwl4965_tx_queue_get_hdr(
- struct iwl4965_priv *priv, int txq_id, int idx)
-{
- if (priv->txq[txq_id].txb[idx].skb[0])
- return (struct ieee80211_hdr *)priv->txq[txq_id].
- txb[idx].skb[0]->data;
- return NULL;
-}
-
-static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp)
-{
- __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status +
- tx_resp->frame_count);
- return le32_to_cpu(*scd_ssn) & MAX_SN;
-
-}
-
-/**
- * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
- */
-static int iwl4965_tx_status_reply_tx(struct iwl4965_priv *priv,
- struct iwl4965_ht_agg *agg,
- struct iwl4965_tx_resp *tx_resp,
- u16 start_idx)
-{
- u32 status;
- __le32 *frame_status = &tx_resp->status;
- struct ieee80211_tx_status *tx_status = NULL;
- struct ieee80211_hdr *hdr = NULL;
- int i, sh;
- int txq_id, idx;
- u16 seq;
-
- if (agg->wait_for_ba)
- IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
-
- agg->frame_count = tx_resp->frame_count;
- agg->start_idx = start_idx;
- agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
- agg->bitmap0 = agg->bitmap1 = 0;
-
- /* # frames attempted by Tx command */
- if (agg->frame_count == 1) {
- /* Only one frame was attempted; no block-ack will arrive */
- struct iwl4965_tx_queue *txq ;
- status = le32_to_cpu(frame_status[0]);
-
- txq_id = agg->txq_id;
- txq = &priv->txq[txq_id];
- /* FIXME: code repetition */
- IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d \n",
- agg->frame_count, agg->start_idx);
-
- tx_status = &(priv->txq[txq_id].txb[txq->q.read_ptr].status);
- tx_status->retry_count = tx_resp->failure_frame;
- tx_status->queue_number = status & 0xff;
- tx_status->queue_length = tx_resp->bt_kill_count;
- tx_status->queue_length |= tx_resp->failure_rts;
-
- tx_status->flags = iwl4965_is_tx_success(status)?
- IEEE80211_TX_STATUS_ACK : 0;
- tx_status->control.tx_rate =
- iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags);
- /* FIXME: code repetition end */
-
- IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
- status & 0xff, tx_resp->failure_frame);
- IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
- iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags));
-
- agg->wait_for_ba = 0;
- } else {
- /* Two or more frames were attempted; expect block-ack */
- u64 bitmap = 0;
- int start = agg->start_idx;
-
- /* Construct bit-map of pending frames within Tx window */
- for (i = 0; i < agg->frame_count; i++) {
- u16 sc;
- status = le32_to_cpu(frame_status[i]);
- seq = status >> 16;
- idx = SEQ_TO_INDEX(seq);
- txq_id = SEQ_TO_QUEUE(seq);
-
- if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
- AGG_TX_STATE_ABORT_MSK))
- continue;
-
- IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
- agg->frame_count, txq_id, idx);
-
- hdr = iwl4965_tx_queue_get_hdr(priv, txq_id, idx);
-
- sc = le16_to_cpu(hdr->seq_ctrl);
- if (idx != (SEQ_TO_SN(sc) & 0xff)) {
- IWL_ERROR("BUG_ON idx doesn't match seq control"
- " idx=%d, seq_idx=%d, seq=%d\n",
- idx, SEQ_TO_SN(sc),
- hdr->seq_ctrl);
- return -1;
- }
-
- IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
- i, idx, SEQ_TO_SN(sc));
-
- sh = idx - start;
- if (sh > 64) {
- sh = (start - idx) + 0xff;
- bitmap = bitmap << sh;
- sh = 0;
- start = idx;
- } else if (sh < -64)
- sh = 0xff - (start - idx);
- else if (sh < 0) {
- sh = start - idx;
- start = idx;
- bitmap = bitmap << sh;
- sh = 0;
- }
- bitmap |= (1 << sh);
- IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
- start, (u32)(bitmap & 0xFFFFFFFF));
- }
-
- agg->bitmap0 = bitmap & 0xFFFFFFFF;
- agg->bitmap1 = bitmap >> 32;
- agg->start_idx = start;
- agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
- IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%x\n",
- agg->frame_count, agg->start_idx,
- agg->bitmap0);
-
- if (bitmap)
- agg->wait_for_ba = 1;
- }
- return 0;
-}
-#endif
-#endif
-
-/**
- * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
- */
-static void iwl4965_rx_reply_tx(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- u16 sequence = le16_to_cpu(pkt->hdr.sequence);
- int txq_id = SEQ_TO_QUEUE(sequence);
- int index = SEQ_TO_INDEX(sequence);
- struct iwl4965_tx_queue *txq = &priv->txq[txq_id];
- struct ieee80211_tx_status *tx_status;
- struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
- u32 status = le32_to_cpu(tx_resp->status);
-#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
- int tid, sta_id;
-#endif
-#endif
-
- if ((index >= txq->q.n_bd) || (x2_queue_used(&txq->q, index) == 0)) {
- IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
- "is out of range [0-%d] %d %d\n", txq_id,
- index, txq->q.n_bd, txq->q.write_ptr,
- txq->q.read_ptr);
- return;
- }
-
-#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
- if (txq->sched_retry) {
- const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp);
- struct ieee80211_hdr *hdr =
- iwl4965_tx_queue_get_hdr(priv, txq_id, index);
- struct iwl4965_ht_agg *agg = NULL;
- __le16 *qc = ieee80211_get_qos_ctrl(hdr);
-
- if (qc == NULL) {
- IWL_ERROR("BUG_ON qc is null!!!!\n");
- return;
- }
-
- tid = le16_to_cpu(*qc) & 0xf;
-
- sta_id = iwl4965_get_ra_sta_id(priv, hdr);
- if (unlikely(sta_id == IWL_INVALID_STATION)) {
- IWL_ERROR("Station not known for\n");
- return;
- }
-
- agg = &priv->stations[sta_id].tid[tid].agg;
-
- iwl4965_tx_status_reply_tx(priv, agg, tx_resp, index);
-
- if ((tx_resp->frame_count == 1) &&
- !iwl4965_is_tx_success(status)) {
- /* TODO: send BAR */
- }
-
- if ((txq->q.read_ptr != (scd_ssn & 0xff))) {
- index = iwl4965_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
- IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
- "%d index %d\n", scd_ssn , index);
- iwl4965_tx_queue_reclaim(priv, txq_id, index);
- }
- } else {
-#endif /* CONFIG_IWL4965_HT_AGG */
-#endif /* CONFIG_IWL4965_HT */
- tx_status = &(txq->txb[txq->q.read_ptr].status);
-
- tx_status->retry_count = tx_resp->failure_frame;
- tx_status->queue_number = status;
- tx_status->queue_length = tx_resp->bt_kill_count;
- tx_status->queue_length |= tx_resp->failure_rts;
-
- tx_status->flags =
- iwl4965_is_tx_success(status) ? IEEE80211_TX_STATUS_ACK : 0;
-
- tx_status->control.tx_rate =
- iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags);
-
- IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
- "retries %d\n", txq_id, iwl4965_get_tx_fail_reason(status),
- status, le32_to_cpu(tx_resp->rate_n_flags),
- tx_resp->failure_frame);
-
- IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
- if (index != -1)
- iwl4965_tx_queue_reclaim(priv, txq_id, index);
-#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
- }
-#endif /* CONFIG_IWL4965_HT_AGG */
-#endif /* CONFIG_IWL4965_HT */
-
- if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
- IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
-}
-
-
-static void iwl4965_rx_reply_alive(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl4965_alive_resp *palive;
- struct delayed_work *pwork;
-
- palive = &pkt->u.alive_frame;
-
- IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
- "0x%01X 0x%01X\n",
- palive->is_valid, palive->ver_type,
- palive->ver_subtype);
-
- if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
- IWL_DEBUG_INFO("Initialization Alive received.\n");
- memcpy(&priv->card_alive_init,
- &pkt->u.alive_frame,
- sizeof(struct iwl4965_init_alive_resp));
- pwork = &priv->init_alive_start;
- } else {
- IWL_DEBUG_INFO("Runtime Alive received.\n");
- memcpy(&priv->card_alive, &pkt->u.alive_frame,
- sizeof(struct iwl4965_alive_resp));
- pwork = &priv->alive_start;
- }
-
- /* We delay the ALIVE response by 5ms to
- * give the HW RF Kill time to activate... */
- if (palive->is_valid == UCODE_VALID_OK)
- queue_delayed_work(priv->workqueue, pwork,
- msecs_to_jiffies(5));
- else
- IWL_WARNING("uCode did not respond OK.\n");
-}
-
-static void iwl4965_rx_reply_add_sta(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
-
- IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
- return;
-}
-
-static void iwl4965_rx_reply_error(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
-
- IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
- "seq 0x%04X ser 0x%08X\n",
- le32_to_cpu(pkt->u.err_resp.error_type),
- get_cmd_string(pkt->u.err_resp.cmd_id),
- pkt->u.err_resp.cmd_id,
- le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
- le32_to_cpu(pkt->u.err_resp.error_info));
-}
-
-#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
-
-static void iwl4965_rx_csa(struct iwl4965_priv *priv, struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl4965_rxon_cmd *rxon = (void *)&priv->active_rxon;
- struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif);
- IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
- le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
- rxon->channel = csa->channel;
- priv->staging_rxon.channel = csa->channel;
-}
-
-static void iwl4965_rx_spectrum_measure_notif(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif);
-
- if (!report->state) {
- IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO,
- "Spectrum Measure Notification: Start\n");
- return;
- }
-
- memcpy(&priv->measure_report, report, sizeof(*report));
- priv->measurement_status |= MEASUREMENT_READY;
-#endif
-}
-
-static void iwl4965_rx_pm_sleep_notif(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWL4965_DEBUG
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif);
- IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
- sleep->pm_sleep_mode, sleep->pm_wakeup_src);
-#endif
-}
-
-static void iwl4965_rx_pm_debug_statistics_notif(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
- "notification for %s:\n",
- le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
- iwl4965_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
-}
-
-static void iwl4965_bg_beacon_update(struct work_struct *work)
-{
- struct iwl4965_priv *priv =
- container_of(work, struct iwl4965_priv, beacon_update);
- struct sk_buff *beacon;
-
- /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
- beacon = ieee80211_beacon_get(priv->hw, priv->vif, NULL);
-
- if (!beacon) {
- IWL_ERROR("update beacon failed\n");
- return;
- }
-
- mutex_lock(&priv->mutex);
- /* new beacon skb is allocated every time; dispose previous.*/
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- priv->ibss_beacon = beacon;
- mutex_unlock(&priv->mutex);
-
- iwl4965_send_beacon_cmd(priv);
-}
-
-static void iwl4965_rx_beacon_notif(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWL4965_DEBUG
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status);
- u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
-
- IWL_DEBUG_RX("beacon status %x retries %d iss %d "
- "tsf %d %d rate %d\n",
- le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
- beacon->beacon_notify_hdr.failure_frame,
- le32_to_cpu(beacon->ibss_mgr_status),
- le32_to_cpu(beacon->high_tsf),
- le32_to_cpu(beacon->low_tsf), rate);
-#endif
-
- if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
- (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
- queue_work(priv->workqueue, &priv->beacon_update);
-}
-
-/* Service response to REPLY_SCAN_CMD (0x80) */
-static void iwl4965_rx_reply_scan(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWL4965_DEBUG
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl4965_scanreq_notification *notif =
- (struct iwl4965_scanreq_notification *)pkt->u.raw;
-
- IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
-#endif
-}
-
-/* Service SCAN_START_NOTIFICATION (0x82) */
-static void iwl4965_rx_scan_start_notif(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl4965_scanstart_notification *notif =
- (struct iwl4965_scanstart_notification *)pkt->u.raw;
- priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
- IWL_DEBUG_SCAN("Scan start: "
- "%d [802.11%s] "
- "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
- notif->channel,
- notif->band ? "bg" : "a",
- notif->tsf_high,
- notif->tsf_low, notif->status, notif->beacon_timer);
-}
-
-/* Service SCAN_RESULTS_NOTIFICATION (0x83) */
-static void iwl4965_rx_scan_results_notif(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl4965_scanresults_notification *notif =
- (struct iwl4965_scanresults_notification *)pkt->u.raw;
-
- IWL_DEBUG_SCAN("Scan ch.res: "
- "%d [802.11%s] "
- "(TSF: 0x%08X:%08X) - %d "
- "elapsed=%lu usec (%dms since last)\n",
- notif->channel,
- notif->band ? "bg" : "a",
- le32_to_cpu(notif->tsf_high),
- le32_to_cpu(notif->tsf_low),
- le32_to_cpu(notif->statistics[0]),
- le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
- jiffies_to_msecs(elapsed_jiffies
- (priv->last_scan_jiffies, jiffies)));
-
- priv->last_scan_jiffies = jiffies;
- priv->next_scan_jiffies = 0;
-}
-
-/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
-static void iwl4965_rx_scan_complete_notif(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl4965_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
-
- IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
- scan_notif->scanned_channels,
- scan_notif->tsf_low,
- scan_notif->tsf_high, scan_notif->status);
-
- /* The HW is no longer scanning */
- clear_bit(STATUS_SCAN_HW, &priv->status);
-
- /* The scan completion notification came in, so kill that timer... */
- cancel_delayed_work(&priv->scan_check);
-
- IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
- (priv->scan_bands == 2) ? "2.4" : "5.2",
- jiffies_to_msecs(elapsed_jiffies
- (priv->scan_pass_start, jiffies)));
-
- /* Remove this scanned band from the list
- * of pending bands to scan */
- priv->scan_bands--;
-
- /* If a request to abort was given, or the scan did not succeed
- * then we reset the scan state machine and terminate,
- * re-queuing another scan if one has been requested */
- if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_INFO("Aborted scan completed.\n");
- clear_bit(STATUS_SCAN_ABORTING, &priv->status);
- } else {
- /* If there are more bands on this scan pass reschedule */
- if (priv->scan_bands > 0)
- goto reschedule;
- }
-
- priv->last_scan_jiffies = jiffies;
- priv->next_scan_jiffies = 0;
- IWL_DEBUG_INFO("Setting scan to off\n");
-
- clear_bit(STATUS_SCANNING, &priv->status);
-
- IWL_DEBUG_INFO("Scan took %dms\n",
- jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
-
- queue_work(priv->workqueue, &priv->scan_completed);
-
- return;
-
-reschedule:
- priv->scan_pass_start = jiffies;
- queue_work(priv->workqueue, &priv->request_scan);
-}
-
-/* Handle notification from uCode that card's power state is changing
- * due to software, hardware, or critical temperature RFKILL */
-static void iwl4965_rx_card_state_notif(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
- u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
- unsigned long status = priv->status;
-
- IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
- (flags & HW_CARD_DISABLED) ? "Kill" : "On",
- (flags & SW_CARD_DISABLED) ? "Kill" : "On");
-
- if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
- RF_CARD_DISABLED)) {
-
- iwl4965_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- if (!iwl4965_grab_nic_access(priv)) {
- iwl4965_write_direct32(
- priv, HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-
- iwl4965_release_nic_access(priv);
- }
-
- if (!(flags & RXON_CARD_DISABLED)) {
- iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
- if (!iwl4965_grab_nic_access(priv)) {
- iwl4965_write_direct32(
- priv, HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-
- iwl4965_release_nic_access(priv);
- }
- }
-
- if (flags & RF_CARD_DISABLED) {
- iwl4965_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
- iwl4965_read32(priv, CSR_UCODE_DRV_GP1);
- if (!iwl4965_grab_nic_access(priv))
- iwl4965_release_nic_access(priv);
- }
- }
-
- if (flags & HW_CARD_DISABLED)
- set_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
-
-
- if (flags & SW_CARD_DISABLED)
- set_bit(STATUS_RF_KILL_SW, &priv->status);
- else
- clear_bit(STATUS_RF_KILL_SW, &priv->status);
-
- if (!(flags & RXON_CARD_DISABLED))
- iwl4965_scan_cancel(priv);
-
- if ((test_bit(STATUS_RF_KILL_HW, &status) !=
- test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
- (test_bit(STATUS_RF_KILL_SW, &status) !=
- test_bit(STATUS_RF_KILL_SW, &priv->status)))
- queue_work(priv->workqueue, &priv->rf_kill);
- else
- wake_up_interruptible(&priv->wait_command_queue);
-}
-
-/**
- * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
- *
- * Setup the RX handlers for each of the reply types sent from the uCode
- * to the host.
- *
- * This function chains into the hardware specific files for them to setup
- * any hardware specific handlers as well.
- */
-static void iwl4965_setup_rx_handlers(struct iwl4965_priv *priv)
-{
- priv->rx_handlers[REPLY_ALIVE] = iwl4965_rx_reply_alive;
- priv->rx_handlers[REPLY_ADD_STA] = iwl4965_rx_reply_add_sta;
- priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
- priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa;
- priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
- iwl4965_rx_spectrum_measure_notif;
- priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif;
- priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
- iwl4965_rx_pm_debug_statistics_notif;
- priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
-
- /*
- * The same handler is used for both the REPLY to a discrete
- * statistics request from the host as well as for the periodic
- * statistics notifications (after received beacons) from the uCode.
- */
- priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics;
- priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics;
-
- priv->rx_handlers[REPLY_SCAN_CMD] = iwl4965_rx_reply_scan;
- priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl4965_rx_scan_start_notif;
- priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
- iwl4965_rx_scan_results_notif;
- priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
- iwl4965_rx_scan_complete_notif;
- priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
- priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx;
-
- /* Set up hardware specific Rx handlers */
- iwl4965_hw_rx_handler_setup(priv);
-}
-
-/**
- * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
- * @rxb: Rx buffer to reclaim
- *
- * If an Rx buffer has an async callback associated with it the callback
- * will be executed. The attached skb (if present) will only be freed
- * if the callback returns 1
- */
-static void iwl4965_tx_cmd_complete(struct iwl4965_priv *priv,
- struct iwl4965_rx_mem_buffer *rxb)
-{
- struct iwl4965_rx_packet *pkt = (struct iwl4965_rx_packet *)rxb->skb->data;
- u16 sequence = le16_to_cpu(pkt->hdr.sequence);
- int txq_id = SEQ_TO_QUEUE(sequence);
- int index = SEQ_TO_INDEX(sequence);
- int huge = sequence & SEQ_HUGE_FRAME;
- int cmd_index;
- struct iwl4965_cmd *cmd;
-
- /* If a Tx command is being handled and it isn't in the actual
- * command queue then there a command routing bug has been introduced
- * in the queue management code. */
- if (txq_id != IWL_CMD_QUEUE_NUM)
- IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
- txq_id, pkt->hdr.cmd);
- BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
-
- cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
- cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
-
- /* Input error checking is done when commands are added to queue. */
- if (cmd->meta.flags & CMD_WANT_SKB) {
- cmd->meta.source->u.skb = rxb->skb;
- rxb->skb = NULL;
- } else if (cmd->meta.u.callback &&
- !cmd->meta.u.callback(priv, cmd, rxb->skb))
- rxb->skb = NULL;
-
- iwl4965_tx_queue_reclaim(priv, txq_id, index);
-
- if (!(cmd->meta.flags & CMD_ASYNC)) {
- clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
- wake_up_interruptible(&priv->wait_command_queue);
- }
-}
-
-/************************** RX-FUNCTIONS ****************************/
-/*
- * Rx theory of operation
- *
- * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
- * each of which point to Receive Buffers to be filled by 4965. These get
- * used not only for Rx frames, but for any command response or notification
- * from the 4965. The driver and 4965 manage the Rx buffers by means
- * of indexes into the circular buffer.
- *
- * Rx Queue Indexes
- * The host/firmware share two index registers for managing the Rx buffers.
- *
- * The READ index maps to the first position that the firmware may be writing
- * to -- the driver can read up to (but not including) this position and get
- * good data.
- * The READ index is managed by the firmware once the card is enabled.
- *
- * The WRITE index maps to the last position the driver has read from -- the
- * position preceding WRITE is the last slot the firmware can place a packet.
- *
- * The queue is empty (no good data) if WRITE = READ - 1, and is full if
- * WRITE = READ.
- *
- * During initialization, the host sets up the READ queue position to the first
- * INDEX position, and WRITE to the last (READ - 1 wrapped)
- *
- * When the firmware places a packet in a buffer, it will advance the READ index
- * and fire the RX interrupt. The driver can then query the READ index and
- * process as many packets as possible, moving the WRITE index forward as it
- * resets the Rx queue buffers with new memory.
- *
- * The management in the driver is as follows:
- * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
- * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
- * to replenish the iwl->rxq->rx_free.
- * + In iwl4965_rx_replenish (scheduled) if 'processed' != 'read' then the
- * iwl->rxq is replenished and the READ INDEX is updated (updating the
- * 'processed' and 'read' driver indexes as well)
- * + A received packet is processed and handed to the kernel network stack,
- * detached from the iwl->rxq. The driver 'processed' index is updated.
- * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
- * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
- * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
- * were enough free buffers and RX_STALLED is set it is cleared.
- *
- *
- * Driver sequence:
- *
- * iwl4965_rx_queue_alloc() Allocates rx_free
- * iwl4965_rx_replenish() Replenishes rx_free list from rx_used, and calls
- * iwl4965_rx_queue_restock
- * iwl4965_rx_queue_restock() Moves available buffers from rx_free into Rx
- * queue, updates firmware pointers, and updates
- * the WRITE index. If insufficient rx_free buffers
- * are available, schedules iwl4965_rx_replenish
- *
- * -- enable interrupts --
- * ISR - iwl4965_rx() Detach iwl4965_rx_mem_buffers from pool up to the
- * READ INDEX, detaching the SKB from the pool.
- * Moves the packet buffer from queue to rx_used.
- * Calls iwl4965_rx_queue_restock to refill any empty
- * slots.
- * ...
- *
- */
-
-/**
- * iwl4965_rx_queue_space - Return number of free slots available in queue.
- */
-static int iwl4965_rx_queue_space(const struct iwl4965_rx_queue *q)
-{
- int s = q->read - q->write;
- if (s <= 0)
- s += RX_QUEUE_SIZE;
- /* keep some buffer to not confuse full and empty queue */
- s -= 2;
- if (s < 0)
- s = 0;
- return s;
-}
-
-/**
- * iwl4965_rx_queue_update_write_ptr - Update the write pointer for the RX queue
- */
-int iwl4965_rx_queue_update_write_ptr(struct iwl4965_priv *priv, struct iwl4965_rx_queue *q)
-{
- u32 reg = 0;
- int rc = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&q->lock, flags);
-
- if (q->need_update == 0)
- goto exit_unlock;
-
- /* If power-saving is in use, make sure device is awake */
- if (test_bit(STATUS_POWER_PMI, &priv->status)) {
- reg = iwl4965_read32(priv, CSR_UCODE_DRV_GP1);
-
- if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
- iwl4965_set_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- goto exit_unlock;
- }
-
- rc = iwl4965_grab_nic_access(priv);
- if (rc)
- goto exit_unlock;
-
- /* Device expects a multiple of 8 */
- iwl4965_write_direct32(priv, FH_RSCSR_CHNL0_WPTR,
- q->write & ~0x7);
- iwl4965_release_nic_access(priv);
-
- /* Else device is assumed to be awake */
- } else
- /* Device expects a multiple of 8 */
- iwl4965_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7);
-
-
- q->need_update = 0;
-
- exit_unlock:
- spin_unlock_irqrestore(&q->lock, flags);
- return rc;
-}
-
-/**
- * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
- */
-static inline __le32 iwl4965_dma_addr2rbd_ptr(struct iwl4965_priv *priv,
- dma_addr_t dma_addr)
-{
- return cpu_to_le32((u32)(dma_addr >> 8));
-}
-
-
-/**
- * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool
- *
- * If there are slots in the RX queue that need to be restocked,
- * and we have free pre-allocated buffers, fill the ranks as much
- * as we can, pulling from rx_free.
- *
- * This moves the 'write' index forward to catch up with 'processed', and
- * also updates the memory address in the firmware to reference the new
- * target buffer.
- */
-static int iwl4965_rx_queue_restock(struct iwl4965_priv *priv)
-{
- struct iwl4965_rx_queue *rxq = &priv->rxq;
- struct list_head *element;
- struct iwl4965_rx_mem_buffer *rxb;
- unsigned long flags;
- int write, rc;
-
- spin_lock_irqsave(&rxq->lock, flags);
- write = rxq->write & ~0x7;
- while ((iwl4965_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
- /* Get next free Rx buffer, remove from free list */
- element = rxq->rx_free.next;
- rxb = list_entry(element, struct iwl4965_rx_mem_buffer, list);
- list_del(element);
-
- /* Point to Rx buffer via next RBD in circular buffer */
- rxq->bd[rxq->write] = iwl4965_dma_addr2rbd_ptr(priv, rxb->dma_addr);
- rxq->queue[rxq->write] = rxb;
- rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
- rxq->free_count--;
- }
- spin_unlock_irqrestore(&rxq->lock, flags);
- /* If the pre-allocated buffer pool is dropping low, schedule to
- * refill it */
- if (rxq->free_count <= RX_LOW_WATERMARK)
- queue_work(priv->workqueue, &priv->rx_replenish);
-
-
- /* If we've added more space for the firmware to place data, tell it.
- * Increment device's write pointer in multiples of 8. */
- if ((write != (rxq->write & ~0x7))
- || (abs(rxq->write - rxq->read) > 7)) {
- spin_lock_irqsave(&rxq->lock, flags);
- rxq->need_update = 1;
- spin_unlock_irqrestore(&rxq->lock, flags);
- rc = iwl4965_rx_queue_update_write_ptr(priv, rxq);
- if (rc)
- return rc;
- }
-
- return 0;
-}
-
-/**
- * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free
- *
- * When moving to rx_free an SKB is allocated for the slot.
- *
- * Also restock the Rx queue via iwl4965_rx_queue_restock.
- * This is called as a scheduled work item (except for during initialization)
- */
-static void iwl4965_rx_allocate(struct iwl4965_priv *priv)
-{
- struct iwl4965_rx_queue *rxq = &priv->rxq;
- struct list_head *element;
- struct iwl4965_rx_mem_buffer *rxb;
- unsigned long flags;
- spin_lock_irqsave(&rxq->lock, flags);
- while (!list_empty(&rxq->rx_used)) {
- element = rxq->rx_used.next;
- rxb = list_entry(element, struct iwl4965_rx_mem_buffer, list);
-
- /* Alloc a new receive buffer */
- rxb->skb =
- alloc_skb(priv->hw_setting.rx_buf_size,
- __GFP_NOWARN | GFP_ATOMIC);
- if (!rxb->skb) {
- if (net_ratelimit())
- printk(KERN_CRIT DRV_NAME
- ": Can not allocate SKB buffers\n");
- /* We don't reschedule replenish work here -- we will
- * call the restock method and if it still needs
- * more buffers it will schedule replenish */
- break;
- }
- priv->alloc_rxb_skb++;
- list_del(element);
-
- /* Get physical address of RB/SKB */
- rxb->dma_addr =
- pci_map_single(priv->pci_dev, rxb->skb->data,
- priv->hw_setting.rx_buf_size, PCI_DMA_FROMDEVICE);
- list_add_tail(&rxb->list, &rxq->rx_free);
- rxq->free_count++;
- }
- spin_unlock_irqrestore(&rxq->lock, flags);
-}
-
-/*
- * this should be called while priv->lock is locked
-*/
-static void __iwl4965_rx_replenish(void *data)
-{
- struct iwl4965_priv *priv = data;
-
- iwl4965_rx_allocate(priv);
- iwl4965_rx_queue_restock(priv);
-}
-
-
-void iwl4965_rx_replenish(void *data)
-{
- struct iwl4965_priv *priv = data;
- unsigned long flags;
-
- iwl4965_rx_allocate(priv);
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl4965_rx_queue_restock(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
- * If an SKB has been detached, the POOL needs to have its SKB set to NULL
- * This free routine walks the list of POOL entries and if SKB is set to
- * non NULL it is unmapped and freed
- */
-static void iwl4965_rx_queue_free(struct iwl4965_priv *priv, struct iwl4965_rx_queue *rxq)
-{
- int i;
- for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
- if (rxq->pool[i].skb != NULL) {
- pci_unmap_single(priv->pci_dev,
- rxq->pool[i].dma_addr,
- priv->hw_setting.rx_buf_size,
- PCI_DMA_FROMDEVICE);
- dev_kfree_skb(rxq->pool[i].skb);
- }
- }
-
- pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
- rxq->dma_addr);
- rxq->bd = NULL;
-}
-
-int iwl4965_rx_queue_alloc(struct iwl4965_priv *priv)
-{
- struct iwl4965_rx_queue *rxq = &priv->rxq;
- struct pci_dev *dev = priv->pci_dev;
- int i;
-
- spin_lock_init(&rxq->lock);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
-
- /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
- rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr);
- if (!rxq->bd)
- return -ENOMEM;
-
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
-
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->free_count = 0;
- rxq->need_update = 0;
- return 0;
-}
-
-void iwl4965_rx_queue_reset(struct iwl4965_priv *priv, struct iwl4965_rx_queue *rxq)
-{
- unsigned long flags;
- int i;
- spin_lock_irqsave(&rxq->lock, flags);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
- /* In the reset function, these buffers may have been allocated
- * to an SKB, so we need to unmap and free potential storage */
- if (rxq->pool[i].skb != NULL) {
- pci_unmap_single(priv->pci_dev,
- rxq->pool[i].dma_addr,
- priv->hw_setting.rx_buf_size,
- PCI_DMA_FROMDEVICE);
- priv->alloc_rxb_skb--;
- dev_kfree_skb(rxq->pool[i].skb);
- rxq->pool[i].skb = NULL;
- }
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
- }
-
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->free_count = 0;
- spin_unlock_irqrestore(&rxq->lock, flags);
-}
-
-/* Convert linear signal-to-noise ratio into dB */
-static u8 ratio2dB[100] = {
-/* 0 1 2 3 4 5 6 7 8 9 */
- 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
- 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
- 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
- 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
- 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
- 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
- 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
- 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
- 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
- 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
-};
-
-/* Calculates a relative dB value from a ratio of linear
- * (i.e. not dB) signal levels.
- * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
-int iwl4965_calc_db_from_ratio(int sig_ratio)
-{
- /* 1000:1 or higher just report as 60 dB */
- if (sig_ratio >= 1000)
- return 60;
-
- /* 100:1 or higher, divide by 10 and use table,
- * add 20 dB to make up for divide by 10 */
- if (sig_ratio >= 100)
- return (20 + (int)ratio2dB[sig_ratio/10]);
-
- /* We shouldn't see this */
- if (sig_ratio < 1)
- return 0;
-
- /* Use table for ratios 1:1 - 99:1 */
- return (int)ratio2dB[sig_ratio];
-}
-
-#define PERFECT_RSSI (-20) /* dBm */
-#define WORST_RSSI (-95) /* dBm */
-#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
-
-/* Calculate an indication of rx signal quality (a percentage, not dBm!).
- * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
- * about formulas used below. */
-int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm)
-{
- int sig_qual;
- int degradation = PERFECT_RSSI - rssi_dbm;
-
- /* If we get a noise measurement, use signal-to-noise ratio (SNR)
- * as indicator; formula is (signal dbm - noise dbm).
- * SNR at or above 40 is a great signal (100%).
- * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
- * Weakest usable signal is usually 10 - 15 dB SNR. */
- if (noise_dbm) {
- if (rssi_dbm - noise_dbm >= 40)
- return 100;
- else if (rssi_dbm < noise_dbm)
- return 0;
- sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
-
- /* Else use just the signal level.
- * This formula is a least squares fit of data points collected and
- * compared with a reference system that had a percentage (%) display
- * for signal quality. */
- } else
- sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
- (15 * RSSI_RANGE + 62 * degradation)) /
- (RSSI_RANGE * RSSI_RANGE);
-
- if (sig_qual > 100)
- sig_qual = 100;
- else if (sig_qual < 1)
- sig_qual = 0;
-
- return sig_qual;
-}
-
-/**
- * iwl4965_rx_handle - Main entry function for receiving responses from uCode
- *
- * Uses the priv->rx_handlers callback function array to invoke
- * the appropriate handlers, including command responses,
- * frame-received notifications, and other notifications.
- */
-static void iwl4965_rx_handle(struct iwl4965_priv *priv)
-{
- struct iwl4965_rx_mem_buffer *rxb;
- struct iwl4965_rx_packet *pkt;
- struct iwl4965_rx_queue *rxq = &priv->rxq;
- u32 r, i;
- int reclaim;
- unsigned long flags;
- u8 fill_rx = 0;
- u32 count = 8;
-
- /* uCode's read index (stored in shared DRAM) indicates the last Rx
- * buffer that the driver may process (last buffer filled by ucode). */
- r = iwl4965_hw_get_rx_read(priv);
- i = rxq->read;
-
- /* Rx interrupt, but nothing sent from uCode */
- if (i == r)
- IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
-
- if (iwl4965_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
- fill_rx = 1;
-
- while (i != r) {
- rxb = rxq->queue[i];
-
- /* If an RXB doesn't have a Rx queue slot associated with it,
- * then a bug has been introduced in the queue refilling
- * routines -- catch it here */
- BUG_ON(rxb == NULL);
-
- rxq->queue[i] = NULL;
-
- pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
- priv->hw_setting.rx_buf_size,
- PCI_DMA_FROMDEVICE);
- pkt = (struct iwl4965_rx_packet *)rxb->skb->data;
-
- /* Reclaim a command buffer only if this packet is a response
- * to a (driver-originated) command.
- * If the packet (e.g. Rx frame) originated from uCode,
- * there is no command buffer to reclaim.
- * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
- * but apparently a few don't get set; catch them here. */
- reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
- (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
- (pkt->hdr.cmd != REPLY_4965_RX) &&
- (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
- (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
- (pkt->hdr.cmd != REPLY_TX);
-
- /* Based on type of command response or notification,
- * handle those that need handling via function in
- * rx_handlers table. See iwl4965_setup_rx_handlers() */
- if (priv->rx_handlers[pkt->hdr.cmd]) {
- IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR,
- "r = %d, i = %d, %s, 0x%02x\n", r, i,
- get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
- priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
- } else {
- /* No handling needed */
- IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR,
- "r %d i %d No handler needed for %s, 0x%02x\n",
- r, i, get_cmd_string(pkt->hdr.cmd),
- pkt->hdr.cmd);
- }
-
- if (reclaim) {
- /* Invoke any callbacks, transfer the skb to caller, and
- * fire off the (possibly) blocking iwl4965_send_cmd()
- * as we reclaim the driver command queue */
- if (rxb && rxb->skb)
- iwl4965_tx_cmd_complete(priv, rxb);
- else
- IWL_WARNING("Claim null rxb?\n");
- }
-
- /* For now we just don't re-use anything. We can tweak this
- * later to try and re-use notification packets and SKBs that
- * fail to Rx correctly */
- if (rxb->skb != NULL) {
- priv->alloc_rxb_skb--;
- dev_kfree_skb_any(rxb->skb);
- rxb->skb = NULL;
- }
-
- pci_unmap_single(priv->pci_dev, rxb->dma_addr,
- priv->hw_setting.rx_buf_size,
- PCI_DMA_FROMDEVICE);
- spin_lock_irqsave(&rxq->lock, flags);
- list_add_tail(&rxb->list, &priv->rxq.rx_used);
- spin_unlock_irqrestore(&rxq->lock, flags);
- i = (i + 1) & RX_QUEUE_MASK;
- /* If there are a lot of unused frames,
- * restock the Rx queue so ucode wont assert. */
- if (fill_rx) {
- count++;
- if (count >= 8) {
- priv->rxq.read = i;
- __iwl4965_rx_replenish(priv);
- count = 0;
- }
- }
- }
-
- /* Backtrack one entry */
- priv->rxq.read = i;
- iwl4965_rx_queue_restock(priv);
-}
-
-/**
- * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
- */
-static int iwl4965_tx_queue_update_write_ptr(struct iwl4965_priv *priv,
- struct iwl4965_tx_queue *txq)
-{
- u32 reg = 0;
- int rc = 0;
- int txq_id = txq->q.id;
-
- if (txq->need_update == 0)
- return rc;
-
- /* if we're trying to save power */
- if (test_bit(STATUS_POWER_PMI, &priv->status)) {
- /* wake up nic if it's powered down ...
- * uCode will wake up, and interrupt us again, so next
- * time we'll skip this part. */
- reg = iwl4965_read32(priv, CSR_UCODE_DRV_GP1);
-
- if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
- IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
- iwl4965_set_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- return rc;
- }
-
- /* restore this queue's parameters in nic hardware. */
- rc = iwl4965_grab_nic_access(priv);
- if (rc)
- return rc;
- iwl4965_write_direct32(priv, HBUS_TARG_WRPTR,
- txq->q.write_ptr | (txq_id << 8));
- iwl4965_release_nic_access(priv);
-
- /* else not in power-save mode, uCode will never sleep when we're
- * trying to tx (during RFKILL, we're not trying to tx). */
- } else
- iwl4965_write32(priv, HBUS_TARG_WRPTR,
- txq->q.write_ptr | (txq_id << 8));
-
- txq->need_update = 0;
-
- return rc;
-}
-
-#ifdef CONFIG_IWL4965_DEBUG
-static void iwl4965_print_rx_config_cmd(struct iwl4965_rxon_cmd *rxon)
-{
- DECLARE_MAC_BUF(mac);
-
- IWL_DEBUG_RADIO("RX CONFIG:\n");
- iwl4965_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
- IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
- IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
- IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
- le32_to_cpu(rxon->filter_flags));
- IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
- IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
- rxon->ofdm_basic_rates);
- IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
- IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
- print_mac(mac, rxon->node_addr));
- IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
- print_mac(mac, rxon->bssid_addr));
- IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
-}
-#endif
-
-static void iwl4965_enable_interrupts(struct iwl4965_priv *priv)
-{
- IWL_DEBUG_ISR("Enabling interrupts\n");
- set_bit(STATUS_INT_ENABLED, &priv->status);
- iwl4965_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
-}
-
-static inline void iwl4965_disable_interrupts(struct iwl4965_priv *priv)
-{
- clear_bit(STATUS_INT_ENABLED, &priv->status);
-
- /* disable interrupts from uCode/NIC to host */
- iwl4965_write32(priv, CSR_INT_MASK, 0x00000000);
-
- /* acknowledge/clear/reset any interrupts still pending
- * from uCode or flow handler (Rx/Tx DMA) */
- iwl4965_write32(priv, CSR_INT, 0xffffffff);
- iwl4965_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
- IWL_DEBUG_ISR("Disabled interrupts\n");
-}
-
-static const char *desc_lookup(int i)
-{
- switch (i) {
- case 1:
- return "FAIL";
- case 2:
- return "BAD_PARAM";
- case 3:
- return "BAD_CHECKSUM";
- case 4:
- return "NMI_INTERRUPT";
- case 5:
- return "SYSASSERT";
- case 6:
- return "FATAL_ERROR";
- }
-
- return "UNKNOWN";
-}
-
-#define ERROR_START_OFFSET (1 * sizeof(u32))
-#define ERROR_ELEM_SIZE (7 * sizeof(u32))
-
-static void iwl4965_dump_nic_error_log(struct iwl4965_priv *priv)
-{
- u32 data2, line;
- u32 desc, time, count, base, data1;
- u32 blink1, blink2, ilink1, ilink2;
- int rc;
-
- base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
-
- if (!iwl4965_hw_valid_rtc_data_addr(base)) {
- IWL_ERROR("Not valid error log pointer 0x%08X\n", base);
- return;
- }
-
- rc = iwl4965_grab_nic_access(priv);
- if (rc) {
- IWL_WARNING("Can not read from adapter at this time.\n");
- return;
- }
-
- count = iwl4965_read_targ_mem(priv, base);
-
- if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
- IWL_ERROR("Start IWL Error Log Dump:\n");
- IWL_ERROR("Status: 0x%08lX, Config: %08X count: %d\n",
- priv->status, priv->config, count);
- }
-
- desc = iwl4965_read_targ_mem(priv, base + 1 * sizeof(u32));
- blink1 = iwl4965_read_targ_mem(priv, base + 3 * sizeof(u32));
- blink2 = iwl4965_read_targ_mem(priv, base + 4 * sizeof(u32));
- ilink1 = iwl4965_read_targ_mem(priv, base + 5 * sizeof(u32));
- ilink2 = iwl4965_read_targ_mem(priv, base + 6 * sizeof(u32));
- data1 = iwl4965_read_targ_mem(priv, base + 7 * sizeof(u32));
- data2 = iwl4965_read_targ_mem(priv, base + 8 * sizeof(u32));
- line = iwl4965_read_targ_mem(priv, base + 9 * sizeof(u32));
- time = iwl4965_read_targ_mem(priv, base + 11 * sizeof(u32));
-
- IWL_ERROR("Desc Time "
- "data1 data2 line\n");
- IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
- desc_lookup(desc), desc, time, data1, data2, line);
- IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
- IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
- ilink1, ilink2);
-
- iwl4965_release_nic_access(priv);
-}
-
-#define EVENT_START_OFFSET (4 * sizeof(u32))
-
-/**
- * iwl4965_print_event_log - Dump error event log to syslog
- *
- * NOTE: Must be called with iwl4965_grab_nic_access() already obtained!
- */
-static void iwl4965_print_event_log(struct iwl4965_priv *priv, u32 start_idx,
- u32 num_events, u32 mode)
-{
- u32 i;
- u32 base; /* SRAM byte address of event log header */
- u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
- u32 ptr; /* SRAM byte address of log data */
- u32 ev, time, data; /* event log data */
-
- if (num_events == 0)
- return;
-
- base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
-
- if (mode == 0)
- event_size = 2 * sizeof(u32);
- else
- event_size = 3 * sizeof(u32);
-
- ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
-
- /* "time" is actually "data" for mode 0 (no timestamp).
- * place event id # at far right for easier visual parsing. */
- for (i = 0; i < num_events; i++) {
- ev = iwl4965_read_targ_mem(priv, ptr);
- ptr += sizeof(u32);
- time = iwl4965_read_targ_mem(priv, ptr);
- ptr += sizeof(u32);
- if (mode == 0)
- IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */
- else {
- data = iwl4965_read_targ_mem(priv, ptr);
- ptr += sizeof(u32);
- IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev);
- }
- }
-}
-
-static void iwl4965_dump_nic_event_log(struct iwl4965_priv *priv)
-{
- int rc;
- u32 base; /* SRAM byte address of event log header */
- u32 capacity; /* event log capacity in # entries */
- u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
- u32 num_wraps; /* # times uCode wrapped to top of log */
- u32 next_entry; /* index of next entry to be written by uCode */
- u32 size; /* # entries that we'll print */
-
- base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
- if (!iwl4965_hw_valid_rtc_data_addr(base)) {
- IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
- return;
- }
-
- rc = iwl4965_grab_nic_access(priv);
- if (rc) {
- IWL_WARNING("Can not read from adapter at this time.\n");
- return;
- }
-
- /* event log header */
- capacity = iwl4965_read_targ_mem(priv, base);
- mode = iwl4965_read_targ_mem(priv, base + (1 * sizeof(u32)));
- num_wraps = iwl4965_read_targ_mem(priv, base + (2 * sizeof(u32)));
- next_entry = iwl4965_read_targ_mem(priv, base + (3 * sizeof(u32)));
-
- size = num_wraps ? capacity : next_entry;
-
- /* bail out if nothing in log */
- if (size == 0) {
- IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
- iwl4965_release_nic_access(priv);
- return;
- }
-
- IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
- size, num_wraps);
-
- /* if uCode has wrapped back to top of log, start at the oldest entry,
- * i.e the next one that uCode would fill. */
- if (num_wraps)
- iwl4965_print_event_log(priv, next_entry,
- capacity - next_entry, mode);
-
- /* (then/else) start at top of log */
- iwl4965_print_event_log(priv, 0, next_entry, mode);
-
- iwl4965_release_nic_access(priv);
-}
-
-/**
- * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
- */
-static void iwl4965_irq_handle_error(struct iwl4965_priv *priv)
-{
- /* Set the FW error flag -- cleared on iwl4965_down */
- set_bit(STATUS_FW_ERROR, &priv->status);
-
- /* Cancel currently queued command. */
- clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
-
-#ifdef CONFIG_IWL4965_DEBUG
- if (iwl4965_debug_level & IWL_DL_FW_ERRORS) {
- iwl4965_dump_nic_error_log(priv);
- iwl4965_dump_nic_event_log(priv);
- iwl4965_print_rx_config_cmd(&priv->staging_rxon);
- }
-#endif
-
- wake_up_interruptible(&priv->wait_command_queue);
-
- /* Keep the restart process from trying to send host
- * commands by clearing the INIT status bit */
- clear_bit(STATUS_READY, &priv->status);
-
- if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS,
- "Restarting adapter due to uCode error.\n");
-
- if (iwl4965_is_associated(priv)) {
- memcpy(&priv->recovery_rxon, &priv->active_rxon,
- sizeof(priv->recovery_rxon));
- priv->error_recovering = 1;
- }
- queue_work(priv->workqueue, &priv->restart);
- }
-}
-
-static void iwl4965_error_recovery(struct iwl4965_priv *priv)
-{
- unsigned long flags;
-
- memcpy(&priv->staging_rxon, &priv->recovery_rxon,
- sizeof(priv->staging_rxon));
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl4965_commit_rxon(priv);
-
- iwl4965_rxon_add_station(priv, priv->bssid, 1);
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
- priv->error_recovering = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static void iwl4965_irq_tasklet(struct iwl4965_priv *priv)
-{
- u32 inta, handled = 0;
- u32 inta_fh;
- unsigned long flags;
-#ifdef CONFIG_IWL4965_DEBUG
- u32 inta_mask;
-#endif
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Ack/clear/reset pending uCode interrupts.
- * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
- * and will clear only when CSR_FH_INT_STATUS gets cleared. */
- inta = iwl4965_read32(priv, CSR_INT);
- iwl4965_write32(priv, CSR_INT, inta);
-
- /* Ack/clear/reset pending flow-handler (DMA) interrupts.
- * Any new interrupts that happen after this, either while we're
- * in this tasklet, or later, will show up in next ISR/tasklet. */
- inta_fh = iwl4965_read32(priv, CSR_FH_INT_STATUS);
- iwl4965_write32(priv, CSR_FH_INT_STATUS, inta_fh);
-
-#ifdef CONFIG_IWL4965_DEBUG
- if (iwl4965_debug_level & IWL_DL_ISR) {
- /* just for debug */
- inta_mask = iwl4965_read32(priv, CSR_INT_MASK);
- IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
- inta, inta_mask, inta_fh);
- }
-#endif
-
- /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
- * atomic, make sure that inta covers all the interrupts that
- * we've discovered, even if FH interrupt came in just after
- * reading CSR_INT. */
- if (inta_fh & CSR_FH_INT_RX_MASK)
- inta |= CSR_INT_BIT_FH_RX;
- if (inta_fh & CSR_FH_INT_TX_MASK)
- inta |= CSR_INT_BIT_FH_TX;
-
- /* Now service all interrupt bits discovered above. */
- if (inta & CSR_INT_BIT_HW_ERR) {
- IWL_ERROR("Microcode HW error detected. Restarting.\n");
-
- /* Tell the device to stop sending interrupts */
- iwl4965_disable_interrupts(priv);
-
- iwl4965_irq_handle_error(priv);
-
- handled |= CSR_INT_BIT_HW_ERR;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return;
- }
-
-#ifdef CONFIG_IWL4965_DEBUG
- if (iwl4965_debug_level & (IWL_DL_ISR)) {
- /* NIC fires this, but we don't use it, redundant with WAKEUP */
- if (inta & CSR_INT_BIT_SCD)
- IWL_DEBUG_ISR("Scheduler finished to transmit "
- "the frame/frames.\n");
-
- /* Alive notification via Rx interrupt will do the real work */
- if (inta & CSR_INT_BIT_ALIVE)
- IWL_DEBUG_ISR("Alive interrupt\n");
- }
-#endif
- /* Safely ignore these bits for debug checks below */
- inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
-
- /* HW RF KILL switch toggled */
- if (inta & CSR_INT_BIT_RF_KILL) {
- int hw_rf_kill = 0;
- if (!(iwl4965_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
- hw_rf_kill = 1;
-
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL | IWL_DL_ISR,
- "RF_KILL bit toggled to %s.\n",
- hw_rf_kill ? "disable radio":"enable radio");
-
- /* Queue restart only if RF_KILL switch was set to "kill"
- * when we loaded driver, and is now set to "enable".
- * After we're Alive, RF_KILL gets handled by
- * iwl_rx_card_state_notif() */
- if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) {
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
- queue_work(priv->workqueue, &priv->restart);
- }
-
- handled |= CSR_INT_BIT_RF_KILL;
- }
-
- /* Chip got too hot and stopped itself */
- if (inta & CSR_INT_BIT_CT_KILL) {
- IWL_ERROR("Microcode CT kill error detected.\n");
- handled |= CSR_INT_BIT_CT_KILL;
- }
-
- /* Error detected by uCode */
- if (inta & CSR_INT_BIT_SW_ERR) {
- IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
- inta);
- iwl4965_irq_handle_error(priv);
- handled |= CSR_INT_BIT_SW_ERR;
- }
-
- /* uCode wakes up after power-down sleep */
- if (inta & CSR_INT_BIT_WAKEUP) {
- IWL_DEBUG_ISR("Wakeup interrupt\n");
- iwl4965_rx_queue_update_write_ptr(priv, &priv->rxq);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[0]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[1]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[2]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[3]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[4]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[5]);
-
- handled |= CSR_INT_BIT_WAKEUP;
- }
-
- /* All uCode command responses, including Tx command responses,
- * Rx "responses" (frame-received notification), and other
- * notifications from uCode come through here*/
- if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
- iwl4965_rx_handle(priv);
- handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
- }
-
- if (inta & CSR_INT_BIT_FH_TX) {
- IWL_DEBUG_ISR("Tx interrupt\n");
- handled |= CSR_INT_BIT_FH_TX;
- }
-
- if (inta & ~handled)
- IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
-
- if (inta & ~CSR_INI_SET_MASK) {
- IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
- inta & ~CSR_INI_SET_MASK);
- IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
- }
+ struct iwl_priv *priv =
+ container_of(work, struct iwl_priv, beacon_update);
+ struct sk_buff *beacon;
- /* Re-enable all interrupts */
- iwl4965_enable_interrupts(priv);
+ /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
+ beacon = ieee80211_beacon_get(priv->hw, priv->vif);
-#ifdef CONFIG_IWL4965_DEBUG
- if (iwl4965_debug_level & (IWL_DL_ISR)) {
- inta = iwl4965_read32(priv, CSR_INT);
- inta_mask = iwl4965_read32(priv, CSR_INT_MASK);
- inta_fh = iwl4965_read32(priv, CSR_FH_INT_STATUS);
- IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
- "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
+ if (!beacon) {
+ IWL_ERROR("update beacon failed\n");
+ return;
}
-#endif
- spin_unlock_irqrestore(&priv->lock, flags);
+
+ mutex_lock(&priv->mutex);
+ /* new beacon skb is allocated every time; dispose previous.*/
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = beacon;
+ mutex_unlock(&priv->mutex);
+
+ iwl4965_send_beacon_cmd(priv);
}
-static irqreturn_t iwl4965_isr(int irq, void *data)
+/**
+ * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
+ *
+ * This callback is provided in order to send a statistics request.
+ *
+ * This timer function is continually reset to execute within
+ * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
+ * was received. We need to ensure we receive the statistics in order
+ * to update the temperature used for calibrating the TXPOWER.
+ */
+static void iwl4965_bg_statistics_periodic(unsigned long data)
{
- struct iwl4965_priv *priv = data;
- u32 inta, inta_mask;
- u32 inta_fh;
- if (!priv)
- return IRQ_NONE;
+ struct iwl_priv *priv = (struct iwl_priv *)data;
- spin_lock(&priv->lock);
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
- /* Disable (but don't clear!) interrupts here to avoid
- * back-to-back ISRs and sporadic interrupts from our NIC.
- * If we have something to service, the tasklet will re-enable ints.
- * If we *don't* have something, we'll re-enable before leaving here. */
- inta_mask = iwl4965_read32(priv, CSR_INT_MASK); /* just for debug */
- iwl4965_write32(priv, CSR_INT_MASK, 0x00000000);
+ iwl_send_statistics_request(priv, CMD_ASYNC);
+}
- /* Discover which interrupts are active/pending */
- inta = iwl4965_read32(priv, CSR_INT);
- inta_fh = iwl4965_read32(priv, CSR_FH_INT_STATUS);
+static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status);
+ u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
- /* Ignore interrupt if there's nothing in NIC to service.
- * This may be due to IRQ shared with another device,
- * or due to sporadic interrupts thrown from our NIC. */
- if (!inta && !inta_fh) {
- IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
- goto none;
- }
+ IWL_DEBUG_RX("beacon status %x retries %d iss %d "
+ "tsf %d %d rate %d\n",
+ le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
+ beacon->beacon_notify_hdr.failure_frame,
+ le32_to_cpu(beacon->ibss_mgr_status),
+ le32_to_cpu(beacon->high_tsf),
+ le32_to_cpu(beacon->low_tsf), rate);
+#endif
- if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
- /* Hardware disappeared. It might have already raised
- * an interrupt */
- IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
- goto unplugged;
- }
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
+ (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
+ queue_work(priv->workqueue, &priv->beacon_update);
+}
- IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
- inta, inta_mask, inta_fh);
+/* Handle notification from uCode that card's power state is changing
+ * due to software, hardware, or critical temperature RFKILL */
+static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
+ unsigned long status = priv->status;
- inta &= ~CSR_INT_BIT_SCD;
+ IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
+ (flags & HW_CARD_DISABLED) ? "Kill" : "On",
+ (flags & SW_CARD_DISABLED) ? "Kill" : "On");
- /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
- if (likely(inta || inta_fh))
- tasklet_schedule(&priv->irq_tasklet);
+ if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
+ RF_CARD_DISABLED)) {
- unplugged:
- spin_unlock(&priv->lock);
- return IRQ_HANDLED;
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
- none:
- /* re-enable interrupts here since we don't have anything to service. */
- iwl4965_enable_interrupts(priv);
- spin_unlock(&priv->lock);
- return IRQ_NONE;
-}
+ if (!iwl_grab_nic_access(priv)) {
+ iwl_write_direct32(
+ priv, HBUS_TARG_MBX_C,
+ HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-/************************** EEPROM BANDS ****************************
- *
- * The iwl4965_eeprom_band definitions below provide the mapping from the
- * EEPROM contents to the specific channel number supported for each
- * band.
- *
- * For example, iwl4965_priv->eeprom.band_3_channels[4] from the band_3
- * definition below maps to physical channel 42 in the 5.2GHz spectrum.
- * The specific geography and calibration information for that channel
- * is contained in the eeprom map itself.
- *
- * During init, we copy the eeprom information and channel map
- * information into priv->channel_info_24/52 and priv->channel_map_24/52
- *
- * channel_map_24/52 provides the index in the channel_info array for a
- * given channel. We have to have two separate maps as there is channel
- * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
- * band_2
- *
- * A value of 0xff stored in the channel_map indicates that the channel
- * is not supported by the hardware at all.
- *
- * A value of 0xfe in the channel_map indicates that the channel is not
- * valid for Tx with the current hardware. This means that
- * while the system can tune and receive on a given channel, it may not
- * be able to associate or transmit any frames on that
- * channel. There is no corresponding channel information for that
- * entry.
- *
- *********************************************************************/
+ iwl_release_nic_access(priv);
+ }
-/* 2.4 GHz */
-static const u8 iwl4965_eeprom_band_1[14] = {
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
-};
+ if (!(flags & RXON_CARD_DISABLED)) {
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+ if (!iwl_grab_nic_access(priv)) {
+ iwl_write_direct32(
+ priv, HBUS_TARG_MBX_C,
+ HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-/* 5.2 GHz bands */
-static const u8 iwl4965_eeprom_band_2[] = { /* 4915-5080MHz */
- 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
-};
+ iwl_release_nic_access(priv);
+ }
+ }
-static const u8 iwl4965_eeprom_band_3[] = { /* 5170-5320MHz */
- 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
-};
+ if (flags & RF_CARD_DISABLED) {
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+ iwl_read32(priv, CSR_UCODE_DRV_GP1);
+ if (!iwl_grab_nic_access(priv))
+ iwl_release_nic_access(priv);
+ }
+ }
-static const u8 iwl4965_eeprom_band_4[] = { /* 5500-5700MHz */
- 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
-};
+ if (flags & HW_CARD_DISABLED)
+ set_bit(STATUS_RF_KILL_HW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
-static const u8 iwl4965_eeprom_band_5[] = { /* 5725-5825MHz */
- 145, 149, 153, 157, 161, 165
-};
-static u8 iwl4965_eeprom_band_6[] = { /* 2.4 FAT channel */
- 1, 2, 3, 4, 5, 6, 7
-};
+ if (flags & SW_CARD_DISABLED)
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_SW, &priv->status);
-static u8 iwl4965_eeprom_band_7[] = { /* 5.2 FAT channel */
- 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
-};
+ if (!(flags & RXON_CARD_DISABLED))
+ iwl_scan_cancel(priv);
-static void iwl4965_init_band_reference(const struct iwl4965_priv *priv,
- int band,
- int *eeprom_ch_count,
- const struct iwl4965_eeprom_channel
- **eeprom_ch_info,
- const u8 **eeprom_ch_index)
-{
- switch (band) {
- case 1: /* 2.4GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_1);
- *eeprom_ch_info = priv->eeprom.band_1_channels;
- *eeprom_ch_index = iwl4965_eeprom_band_1;
- break;
- case 2: /* 4.9GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_2);
- *eeprom_ch_info = priv->eeprom.band_2_channels;
- *eeprom_ch_index = iwl4965_eeprom_band_2;
- break;
- case 3: /* 5.2GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_3);
- *eeprom_ch_info = priv->eeprom.band_3_channels;
- *eeprom_ch_index = iwl4965_eeprom_band_3;
- break;
- case 4: /* 5.5GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_4);
- *eeprom_ch_info = priv->eeprom.band_4_channels;
- *eeprom_ch_index = iwl4965_eeprom_band_4;
- break;
- case 5: /* 5.7GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_5);
- *eeprom_ch_info = priv->eeprom.band_5_channels;
- *eeprom_ch_index = iwl4965_eeprom_band_5;
- break;
- case 6: /* 2.4GHz FAT channels */
- *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_6);
- *eeprom_ch_info = priv->eeprom.band_24_channels;
- *eeprom_ch_index = iwl4965_eeprom_band_6;
- break;
- case 7: /* 5 GHz FAT channels */
- *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_7);
- *eeprom_ch_info = priv->eeprom.band_52_channels;
- *eeprom_ch_index = iwl4965_eeprom_band_7;
- break;
- default:
- BUG();
- return;
- }
+ if ((test_bit(STATUS_RF_KILL_HW, &status) !=
+ test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
+ (test_bit(STATUS_RF_KILL_SW, &status) !=
+ test_bit(STATUS_RF_KILL_SW, &priv->status)))
+ queue_work(priv->workqueue, &priv->rf_kill);
+ else
+ wake_up_interruptible(&priv->wait_command_queue);
}
/**
- * iwl4965_get_channel_info - Find driver's private channel info
+ * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
+ *
+ * Setup the RX handlers for each of the reply types sent from the uCode
+ * to the host.
*
- * Based on band and channel number.
+ * This function chains into the hardware specific files for them to setup
+ * any hardware specific handlers as well.
*/
-const struct iwl4965_channel_info *iwl4965_get_channel_info(const struct iwl4965_priv *priv,
- int phymode, u16 channel)
+static void iwl_setup_rx_handlers(struct iwl_priv *priv)
{
- int i;
+ priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
+ priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
+ priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa;
+ priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
+ iwl4965_rx_spectrum_measure_notif;
+ priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif;
+ priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
+ iwl4965_rx_pm_debug_statistics_notif;
+ priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
- switch (phymode) {
- case MODE_IEEE80211A:
- for (i = 14; i < priv->channel_count; i++) {
- if (priv->channel_info[i].channel == channel)
- return &priv->channel_info[i];
- }
- break;
+ /*
+ * The same handler is used for both the REPLY to a discrete
+ * statistics request from the host as well as for the periodic
+ * statistics notifications (after received beacons) from the uCode.
+ */
+ priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics;
+ priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics;
- case MODE_IEEE80211B:
- case MODE_IEEE80211G:
- if (channel >= 1 && channel <= 14)
- return &priv->channel_info[channel - 1];
- break;
+ iwl_setup_rx_scan_handlers(priv);
- }
+ /* status change handler */
+ priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
+
+ priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
+ iwl_rx_missed_beacon_notif;
+ /* Rx handlers */
+ priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy;
+ priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx;
+ /* block ack */
+ priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba;
+ /* Set up hardware specific Rx handlers */
+ priv->cfg->ops->lib->rx_handler_setup(priv);
+}
- return NULL;
+/*
+ * this should be called while priv->lock is locked
+*/
+static void __iwl_rx_replenish(struct iwl_priv *priv)
+{
+ iwl_rx_allocate(priv);
+ iwl_rx_queue_restock(priv);
}
-#define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
- ? # x " " : "")
/**
- * iwl4965_init_channel_map - Set up driver's info for all possible channels
+ * iwl_rx_handle - Main entry function for receiving responses from uCode
+ *
+ * Uses the priv->rx_handlers callback function array to invoke
+ * the appropriate handlers, including command responses,
+ * frame-received notifications, and other notifications.
*/
-static int iwl4965_init_channel_map(struct iwl4965_priv *priv)
+void iwl_rx_handle(struct iwl_priv *priv)
{
- int eeprom_ch_count = 0;
- const u8 *eeprom_ch_index = NULL;
- const struct iwl4965_eeprom_channel *eeprom_ch_info = NULL;
- int band, ch;
- struct iwl4965_channel_info *ch_info;
-
- if (priv->channel_count) {
- IWL_DEBUG_INFO("Channel map already initialized.\n");
- return 0;
- }
+ struct iwl_rx_mem_buffer *rxb;
+ struct iwl_rx_packet *pkt;
+ struct iwl_rx_queue *rxq = &priv->rxq;
+ u32 r, i;
+ int reclaim;
+ unsigned long flags;
+ u8 fill_rx = 0;
+ u32 count = 8;
- if (priv->eeprom.version < 0x2f) {
- IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
- priv->eeprom.version);
- return -EINVAL;
- }
+ /* uCode's read index (stored in shared DRAM) indicates the last Rx
+ * buffer that the driver may process (last buffer filled by ucode). */
+ r = priv->cfg->ops->lib->shared_mem_rx_idx(priv);
+ i = rxq->read;
- IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
+ /* Rx interrupt, but nothing sent from uCode */
+ if (i == r)
+ IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i);
- priv->channel_count =
- ARRAY_SIZE(iwl4965_eeprom_band_1) +
- ARRAY_SIZE(iwl4965_eeprom_band_2) +
- ARRAY_SIZE(iwl4965_eeprom_band_3) +
- ARRAY_SIZE(iwl4965_eeprom_band_4) +
- ARRAY_SIZE(iwl4965_eeprom_band_5);
+ if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
+ fill_rx = 1;
- IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count);
+ while (i != r) {
+ rxb = rxq->queue[i];
- priv->channel_info = kzalloc(sizeof(struct iwl4965_channel_info) *
- priv->channel_count, GFP_KERNEL);
- if (!priv->channel_info) {
- IWL_ERROR("Could not allocate channel_info\n");
- priv->channel_count = 0;
- return -ENOMEM;
- }
+ /* If an RXB doesn't have a Rx queue slot associated with it,
+ * then a bug has been introduced in the queue refilling
+ * routines -- catch it here */
+ BUG_ON(rxb == NULL);
- ch_info = priv->channel_info;
+ rxq->queue[i] = NULL;
- /* Loop through the 5 EEPROM bands adding them in order to the
- * channel map we maintain (that contains additional information than
- * what just in the EEPROM) */
- for (band = 1; band <= 5; band++) {
+ pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
+ priv->hw_params.rx_buf_size,
+ PCI_DMA_FROMDEVICE);
+ pkt = (struct iwl_rx_packet *)rxb->skb->data;
- iwl4965_init_band_reference(priv, band, &eeprom_ch_count,
- &eeprom_ch_info, &eeprom_ch_index);
+ /* Reclaim a command buffer only if this packet is a response
+ * to a (driver-originated) command.
+ * If the packet (e.g. Rx frame) originated from uCode,
+ * there is no command buffer to reclaim.
+ * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
+ * but apparently a few don't get set; catch them here. */
+ reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
+ (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
+ (pkt->hdr.cmd != REPLY_RX) &&
+ (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
+ (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
+ (pkt->hdr.cmd != REPLY_TX);
- /* Loop through each band adding each of the channels */
- for (ch = 0; ch < eeprom_ch_count; ch++) {
- ch_info->channel = eeprom_ch_index[ch];
- ch_info->phymode = (band == 1) ? MODE_IEEE80211B :
- MODE_IEEE80211A;
+ /* Based on type of command response or notification,
+ * handle those that need handling via function in
+ * rx_handlers table. See iwl4965_setup_rx_handlers() */
+ if (priv->rx_handlers[pkt->hdr.cmd]) {
+ IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r,
+ i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
+ priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
+ } else {
+ /* No handling needed */
+ IWL_DEBUG(IWL_DL_RX,
+ "r %d i %d No handler needed for %s, 0x%02x\n",
+ r, i, get_cmd_string(pkt->hdr.cmd),
+ pkt->hdr.cmd);
+ }
- /* permanently store EEPROM's channel regulatory flags
- * and max power in channel info database. */
- ch_info->eeprom = eeprom_ch_info[ch];
+ if (reclaim) {
+ /* Invoke any callbacks, transfer the skb to caller, and
+ * fire off the (possibly) blocking iwl_send_cmd()
+ * as we reclaim the driver command queue */
+ if (rxb && rxb->skb)
+ iwl_tx_cmd_complete(priv, rxb);
+ else
+ IWL_WARNING("Claim null rxb?\n");
+ }
- /* Copy the run-time flags so they are there even on
- * invalid channels */
- ch_info->flags = eeprom_ch_info[ch].flags;
+ /* For now we just don't re-use anything. We can tweak this
+ * later to try and re-use notification packets and SKBs that
+ * fail to Rx correctly */
+ if (rxb->skb != NULL) {
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(rxb->skb);
+ rxb->skb = NULL;
+ }
- if (!(is_channel_valid(ch_info))) {
- IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
- "No traffic\n",
- ch_info->channel,
- ch_info->flags,
- is_channel_a_band(ch_info) ?
- "5.2" : "2.4");
- ch_info++;
- continue;
+ pci_unmap_single(priv->pci_dev, rxb->dma_addr,
+ priv->hw_params.rx_buf_size,
+ PCI_DMA_FROMDEVICE);
+ spin_lock_irqsave(&rxq->lock, flags);
+ list_add_tail(&rxb->list, &priv->rxq.rx_used);
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ i = (i + 1) & RX_QUEUE_MASK;
+ /* If there are a lot of unused frames,
+ * restock the Rx queue so ucode wont assert. */
+ if (fill_rx) {
+ count++;
+ if (count >= 8) {
+ priv->rxq.read = i;
+ __iwl_rx_replenish(priv);
+ count = 0;
}
-
- /* Initialize regulatory-based run-time data */
- ch_info->max_power_avg = ch_info->curr_txpow =
- eeprom_ch_info[ch].max_power_avg;
- ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
- ch_info->min_power = 0;
-
- IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
- " %ddBm): Ad-Hoc %ssupported\n",
- ch_info->channel,
- is_channel_a_band(ch_info) ?
- "5.2" : "2.4",
- CHECK_AND_PRINT(IBSS),
- CHECK_AND_PRINT(ACTIVE),
- CHECK_AND_PRINT(RADAR),
- CHECK_AND_PRINT(WIDE),
- CHECK_AND_PRINT(NARROW),
- CHECK_AND_PRINT(DFS),
- eeprom_ch_info[ch].flags,
- eeprom_ch_info[ch].max_power_avg,
- ((eeprom_ch_info[ch].
- flags & EEPROM_CHANNEL_IBSS)
- && !(eeprom_ch_info[ch].
- flags & EEPROM_CHANNEL_RADAR))
- ? "" : "not ");
-
- /* Set the user_txpower_limit to the highest power
- * supported by any channel */
- if (eeprom_ch_info[ch].max_power_avg >
- priv->user_txpower_limit)
- priv->user_txpower_limit =
- eeprom_ch_info[ch].max_power_avg;
-
- ch_info++;
- }
- }
-
- /* Two additional EEPROM bands for 2.4 and 5 GHz FAT channels */
- for (band = 6; band <= 7; band++) {
- int phymode;
- u8 fat_extension_chan;
-
- iwl4965_init_band_reference(priv, band, &eeprom_ch_count,
- &eeprom_ch_info, &eeprom_ch_index);
-
- /* EEPROM band 6 is 2.4, band 7 is 5 GHz */
- phymode = (band == 6) ? MODE_IEEE80211B : MODE_IEEE80211A;
-
- /* Loop through each band adding each of the channels */
- for (ch = 0; ch < eeprom_ch_count; ch++) {
-
- if ((band == 6) &&
- ((eeprom_ch_index[ch] == 5) ||
- (eeprom_ch_index[ch] == 6) ||
- (eeprom_ch_index[ch] == 7)))
- fat_extension_chan = HT_IE_EXT_CHANNEL_MAX;
- else
- fat_extension_chan = HT_IE_EXT_CHANNEL_ABOVE;
-
- /* Set up driver's info for lower half */
- iwl4965_set_fat_chan_info(priv, phymode,
- eeprom_ch_index[ch],
- &(eeprom_ch_info[ch]),
- fat_extension_chan);
-
- /* Set up driver's info for upper half */
- iwl4965_set_fat_chan_info(priv, phymode,
- (eeprom_ch_index[ch] + 4),
- &(eeprom_ch_info[ch]),
- HT_IE_EXT_CHANNEL_BELOW);
}
}
- return 0;
+ /* Backtrack one entry */
+ priv->rxq.read = i;
+ iwl_rx_queue_restock(priv);
}
-/*
- * iwl4965_free_channel_map - undo allocations in iwl4965_init_channel_map
- */
-static void iwl4965_free_channel_map(struct iwl4965_priv *priv)
+#ifdef CONFIG_IWLWIFI_DEBUG
+static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv)
{
- kfree(priv->channel_info);
- priv->channel_count = 0;
+ struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_RADIO("RX CONFIG:\n");
+ iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
+ IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
+ IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
+ IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
+ le32_to_cpu(rxon->filter_flags));
+ IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
+ IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
+ rxon->ofdm_basic_rates);
+ IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
+ IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
+ print_mac(mac, rxon->node_addr));
+ IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
+ print_mac(mac, rxon->bssid_addr));
+ IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
}
+#endif
-/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
- * sending probe req. This should be set long enough to hear probe responses
- * from more than one AP. */
-#define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
-#define IWL_ACTIVE_DWELL_TIME_52 (10)
-
-/* For faster active scanning, scan will move to the next channel if fewer than
- * PLCP_QUIET_THRESH packets are heard on this channel within
- * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
- * time if it's a quiet channel (nothing responded to our probe, and there's
- * no other traffic).
- * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
-#define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
-#define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
-
-/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
- * Must be set longer than active dwell time.
- * For the most reliable scan, set > AP beacon interval (typically 100msec). */
-#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
-#define IWL_PASSIVE_DWELL_TIME_52 (10)
-#define IWL_PASSIVE_DWELL_BASE (100)
-#define IWL_CHANNEL_TUNE_TIME 5
-
-static inline u16 iwl4965_get_active_dwell_time(struct iwl4965_priv *priv, int phymode)
+static void iwl4965_enable_interrupts(struct iwl_priv *priv)
{
- if (phymode == MODE_IEEE80211A)
- return IWL_ACTIVE_DWELL_TIME_52;
- else
- return IWL_ACTIVE_DWELL_TIME_24;
+ IWL_DEBUG_ISR("Enabling interrupts\n");
+ set_bit(STATUS_INT_ENABLED, &priv->status);
+ iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
}
-static u16 iwl4965_get_passive_dwell_time(struct iwl4965_priv *priv, int phymode)
+/* call this function to flush any scheduled tasklet */
+static inline void iwl_synchronize_irq(struct iwl_priv *priv)
{
- u16 active = iwl4965_get_active_dwell_time(priv, phymode);
- u16 passive = (phymode != MODE_IEEE80211A) ?
- IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
- IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
-
- if (iwl4965_is_associated(priv)) {
- /* If we're associated, we clamp the maximum passive
- * dwell time to be 98% of the beacon interval (minus
- * 2 * channel tune time) */
- passive = priv->beacon_int;
- if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
- passive = IWL_PASSIVE_DWELL_BASE;
- passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
- }
-
- if (passive <= active)
- passive = active + 1;
-
- return passive;
+ /* wait to make sure we flush pedding tasklet*/
+ synchronize_irq(priv->pci_dev->irq);
+ tasklet_kill(&priv->irq_tasklet);
}
-static int iwl4965_get_channels_for_scan(struct iwl4965_priv *priv, int phymode,
- u8 is_active, u8 direct_mask,
- struct iwl4965_scan_channel *scan_ch)
+static inline void iwl4965_disable_interrupts(struct iwl_priv *priv)
{
- const struct ieee80211_channel *channels = NULL;
- const struct ieee80211_hw_mode *hw_mode;
- const struct iwl4965_channel_info *ch_info;
- u16 passive_dwell = 0;
- u16 active_dwell = 0;
- int added, i;
-
- hw_mode = iwl4965_get_hw_mode(priv, phymode);
- if (!hw_mode)
- return 0;
-
- channels = hw_mode->channels;
+ clear_bit(STATUS_INT_ENABLED, &priv->status);
- active_dwell = iwl4965_get_active_dwell_time(priv, phymode);
- passive_dwell = iwl4965_get_passive_dwell_time(priv, phymode);
+ /* disable interrupts from uCode/NIC to host */
+ iwl_write32(priv, CSR_INT_MASK, 0x00000000);
- for (i = 0, added = 0; i < hw_mode->num_channels; i++) {
- if (channels[i].chan ==
- le16_to_cpu(priv->active_rxon.channel)) {
- if (iwl4965_is_associated(priv)) {
- IWL_DEBUG_SCAN
- ("Skipping current channel %d\n",
- le16_to_cpu(priv->active_rxon.channel));
- continue;
- }
- } else if (priv->only_active_channel)
- continue;
+ /* acknowledge/clear/reset any interrupts still pending
+ * from uCode or flow handler (Rx/Tx DMA) */
+ iwl_write32(priv, CSR_INT, 0xffffffff);
+ iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
+ IWL_DEBUG_ISR("Disabled interrupts\n");
+}
- scan_ch->channel = channels[i].chan;
- ch_info = iwl4965_get_channel_info(priv, phymode,
- scan_ch->channel);
- if (!is_channel_valid(ch_info)) {
- IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
- scan_ch->channel);
- continue;
- }
+/**
+ * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
+ */
+static void iwl4965_irq_handle_error(struct iwl_priv *priv)
+{
+ /* Set the FW error flag -- cleared on iwl4965_down */
+ set_bit(STATUS_FW_ERROR, &priv->status);
- if (!is_active || is_channel_passive(ch_info) ||
- !(channels[i].flag & IEEE80211_CHAN_W_ACTIVE_SCAN))
- scan_ch->type = 0; /* passive */
- else
- scan_ch->type = 1; /* active */
+ /* Cancel currently queued command. */
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
- if (scan_ch->type & 1)
- scan_ch->type |= (direct_mask << 1);
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (priv->debug_level & IWL_DL_FW_ERRORS) {
+ iwl_dump_nic_error_log(priv);
+ iwl_dump_nic_event_log(priv);
+ iwl4965_print_rx_config_cmd(priv);
+ }
+#endif
- if (is_channel_narrow(ch_info))
- scan_ch->type |= (1 << 7);
+ wake_up_interruptible(&priv->wait_command_queue);
- scan_ch->active_dwell = cpu_to_le16(active_dwell);
- scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
+ /* Keep the restart process from trying to send host
+ * commands by clearing the INIT status bit */
+ clear_bit(STATUS_READY, &priv->status);
- /* Set txpower levels to defaults */
- scan_ch->tpc.dsp_atten = 110;
- /* scan_pwr_info->tpc.dsp_atten; */
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ IWL_DEBUG(IWL_DL_FW_ERRORS,
+ "Restarting adapter due to uCode error.\n");
- /*scan_pwr_info->tpc.tx_gain; */
- if (phymode == MODE_IEEE80211A)
- scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
- else {
- scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
- /* NOTE: if we were doing 6Mb OFDM for scans we'd use
- * power level:
- * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
- */
+ if (iwl_is_associated(priv)) {
+ memcpy(&priv->recovery_rxon, &priv->active_rxon,
+ sizeof(priv->recovery_rxon));
+ priv->error_recovering = 1;
}
-
- IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
- scan_ch->channel,
- (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
- (scan_ch->type & 1) ?
- active_dwell : passive_dwell);
-
- scan_ch++;
- added++;
+ if (priv->cfg->mod_params->restart_fw)
+ queue_work(priv->workqueue, &priv->restart);
}
-
- IWL_DEBUG_SCAN("total channels to scan %d \n", added);
- return added;
}
-static void iwl4965_reset_channel_flag(struct iwl4965_priv *priv)
+static void iwl4965_error_recovery(struct iwl_priv *priv)
{
- int i, j;
- for (i = 0; i < 3; i++) {
- struct ieee80211_hw_mode *hw_mode = (void *)&priv->modes[i];
- for (j = 0; j < hw_mode->num_channels; j++)
- hw_mode->channels[j].flag = hw_mode->channels[j].val;
- }
-}
+ unsigned long flags;
-static void iwl4965_init_hw_rates(struct iwl4965_priv *priv,
- struct ieee80211_rate *rates)
-{
- int i;
+ memcpy(&priv->staging_rxon, &priv->recovery_rxon,
+ sizeof(priv->staging_rxon));
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
- for (i = 0; i < IWL_RATE_COUNT; i++) {
- rates[i].rate = iwl4965_rates[i].ieee * 5;
- rates[i].val = i; /* Rate scaling will work on indexes */
- rates[i].val2 = i;
- rates[i].flags = IEEE80211_RATE_SUPPORTED;
- /* Only OFDM have the bits-per-symbol set */
- if ((i <= IWL_LAST_OFDM_RATE) && (i >= IWL_FIRST_OFDM_RATE))
- rates[i].flags |= IEEE80211_RATE_OFDM;
- else {
- /*
- * If CCK 1M then set rate flag to CCK else CCK_2
- * which is CCK | PREAMBLE2
- */
- rates[i].flags |= (iwl4965_rates[i].plcp == 10) ?
- IEEE80211_RATE_CCK : IEEE80211_RATE_CCK_2;
- }
+ iwl_rxon_add_station(priv, priv->bssid, 1);
- /* Set up which ones are basic rates... */
- if (IWL_BASIC_RATES_MASK & (1 << i))
- rates[i].flags |= IEEE80211_RATE_BASIC;
- }
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
+ priv->error_recovering = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
}
-/**
- * iwl4965_init_geos - Initialize mac80211's geo/channel info based from eeprom
- */
-static int iwl4965_init_geos(struct iwl4965_priv *priv)
+static void iwl4965_irq_tasklet(struct iwl_priv *priv)
{
- struct iwl4965_channel_info *ch;
- struct ieee80211_hw_mode *modes;
- struct ieee80211_channel *channels;
- struct ieee80211_channel *geo_ch;
- struct ieee80211_rate *rates;
- int i = 0;
- enum {
- A = 0,
- B = 1,
- G = 2,
- };
- int mode_count = 3;
+ u32 inta, handled = 0;
+ u32 inta_fh;
+ unsigned long flags;
+#ifdef CONFIG_IWLWIFI_DEBUG
+ u32 inta_mask;
+#endif
- if (priv->modes) {
- IWL_DEBUG_INFO("Geography modes already initialized.\n");
- set_bit(STATUS_GEO_CONFIGURED, &priv->status);
- return 0;
- }
+ spin_lock_irqsave(&priv->lock, flags);
- modes = kzalloc(sizeof(struct ieee80211_hw_mode) * mode_count,
- GFP_KERNEL);
- if (!modes)
- return -ENOMEM;
+ /* Ack/clear/reset pending uCode interrupts.
+ * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
+ * and will clear only when CSR_FH_INT_STATUS gets cleared. */
+ inta = iwl_read32(priv, CSR_INT);
+ iwl_write32(priv, CSR_INT, inta);
- channels = kzalloc(sizeof(struct ieee80211_channel) *
- priv->channel_count, GFP_KERNEL);
- if (!channels) {
- kfree(modes);
- return -ENOMEM;
- }
+ /* Ack/clear/reset pending flow-handler (DMA) interrupts.
+ * Any new interrupts that happen after this, either while we're
+ * in this tasklet, or later, will show up in next ISR/tasklet. */
+ inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
+ iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
- rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_MAX_RATES + 1)),
- GFP_KERNEL);
- if (!rates) {
- kfree(modes);
- kfree(channels);
- return -ENOMEM;
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (priv->debug_level & IWL_DL_ISR) {
+ /* just for debug */
+ inta_mask = iwl_read32(priv, CSR_INT_MASK);
+ IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+ inta, inta_mask, inta_fh);
}
-
- /* 0 = 802.11a
- * 1 = 802.11b
- * 2 = 802.11g
- */
-
- /* 5.2GHz channels start after the 2.4GHz channels */
- modes[A].mode = MODE_IEEE80211A;
- modes[A].channels = &channels[ARRAY_SIZE(iwl4965_eeprom_band_1)];
- modes[A].rates = rates;
- modes[A].num_rates = 8; /* just OFDM */
- modes[A].rates = &rates[4];
- modes[A].num_channels = 0;
-#ifdef CONFIG_IWL4965_HT
- iwl4965_init_ht_hw_capab(&modes[A].ht_info, MODE_IEEE80211A);
-#endif
-
- modes[B].mode = MODE_IEEE80211B;
- modes[B].channels = channels;
- modes[B].rates = rates;
- modes[B].num_rates = 4; /* just CCK */
- modes[B].num_channels = 0;
-
- modes[G].mode = MODE_IEEE80211G;
- modes[G].channels = channels;
- modes[G].rates = rates;
- modes[G].num_rates = 12; /* OFDM & CCK */
- modes[G].num_channels = 0;
-#ifdef CONFIG_IWL4965_HT
- iwl4965_init_ht_hw_capab(&modes[G].ht_info, MODE_IEEE80211G);
#endif
- priv->ieee_channels = channels;
- priv->ieee_rates = rates;
-
- iwl4965_init_hw_rates(priv, rates);
-
- for (i = 0, geo_ch = channels; i < priv->channel_count; i++) {
- ch = &priv->channel_info[i];
-
- if (!is_channel_valid(ch)) {
- IWL_DEBUG_INFO("Channel %d [%sGHz] is restricted -- "
- "skipping.\n",
- ch->channel, is_channel_a_band(ch) ?
- "5.2" : "2.4");
- continue;
- }
-
- if (is_channel_a_band(ch)) {
- geo_ch = &modes[A].channels[modes[A].num_channels++];
- } else {
- geo_ch = &modes[B].channels[modes[B].num_channels++];
- modes[G].num_channels++;
- }
-
- geo_ch->freq = ieee80211chan2mhz(ch->channel);
- geo_ch->chan = ch->channel;
- geo_ch->power_level = ch->max_power_avg;
- geo_ch->antenna_max = 0xff;
+ /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
+ * atomic, make sure that inta covers all the interrupts that
+ * we've discovered, even if FH interrupt came in just after
+ * reading CSR_INT. */
+ if (inta_fh & CSR49_FH_INT_RX_MASK)
+ inta |= CSR_INT_BIT_FH_RX;
+ if (inta_fh & CSR49_FH_INT_TX_MASK)
+ inta |= CSR_INT_BIT_FH_TX;
- if (is_channel_valid(ch)) {
- geo_ch->flag = IEEE80211_CHAN_W_SCAN;
- if (ch->flags & EEPROM_CHANNEL_IBSS)
- geo_ch->flag |= IEEE80211_CHAN_W_IBSS;
+ /* Now service all interrupt bits discovered above. */
+ if (inta & CSR_INT_BIT_HW_ERR) {
+ IWL_ERROR("Microcode HW error detected. Restarting.\n");
- if (ch->flags & EEPROM_CHANNEL_ACTIVE)
- geo_ch->flag |= IEEE80211_CHAN_W_ACTIVE_SCAN;
+ /* Tell the device to stop sending interrupts */
+ iwl4965_disable_interrupts(priv);
- if (ch->flags & EEPROM_CHANNEL_RADAR)
- geo_ch->flag |= IEEE80211_CHAN_W_RADAR_DETECT;
+ iwl4965_irq_handle_error(priv);
- if (ch->max_power_avg > priv->max_channel_txpower_limit)
- priv->max_channel_txpower_limit =
- ch->max_power_avg;
- }
+ handled |= CSR_INT_BIT_HW_ERR;
- geo_ch->val = geo_ch->flag;
- }
+ spin_unlock_irqrestore(&priv->lock, flags);
- if ((modes[A].num_channels == 0) && priv->is_abg) {
- printk(KERN_INFO DRV_NAME
- ": Incorrectly detected BG card as ABG. Please send "
- "your PCI ID 0x%04X:0x%04X to maintainer.\n",
- priv->pci_dev->device, priv->pci_dev->subsystem_device);
- priv->is_abg = 0;
+ return;
}
- printk(KERN_INFO DRV_NAME
- ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
- modes[G].num_channels, modes[A].num_channels);
-
- /*
- * NOTE: We register these in preference of order -- the
- * stack doesn't currently (as of 7.0.6 / Apr 24 '07) pick
- * a phymode based on rates or AP capabilities but seems to
- * configure it purely on if the channel being configured
- * is supported by a mode -- and the first match is taken
- */
-
- if (modes[G].num_channels)
- ieee80211_register_hwmode(priv->hw, &modes[G]);
- if (modes[B].num_channels)
- ieee80211_register_hwmode(priv->hw, &modes[B]);
- if (modes[A].num_channels)
- ieee80211_register_hwmode(priv->hw, &modes[A]);
-
- priv->modes = modes;
- set_bit(STATUS_GEO_CONFIGURED, &priv->status);
-
- return 0;
-}
-
-/*
- * iwl4965_free_geos - undo allocations in iwl4965_init_geos
- */
-static void iwl4965_free_geos(struct iwl4965_priv *priv)
-{
- kfree(priv->modes);
- kfree(priv->ieee_channels);
- kfree(priv->ieee_rates);
- clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
-}
-
-/******************************************************************************
- *
- * uCode download functions
- *
- ******************************************************************************/
-
-static void iwl4965_dealloc_ucode_pci(struct iwl4965_priv *priv)
-{
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
-}
-
-/**
- * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
- * looking at all data.
- */
-static int iwl4965_verify_inst_full(struct iwl4965_priv *priv, __le32 *image,
- u32 len)
-{
- u32 val;
- u32 save_len = len;
- int rc = 0;
- u32 errcnt;
-
- IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
-
- rc = iwl4965_grab_nic_access(priv);
- if (rc)
- return rc;
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (priv->debug_level & (IWL_DL_ISR)) {
+ /* NIC fires this, but we don't use it, redundant with WAKEUP */
+ if (inta & CSR_INT_BIT_SCD)
+ IWL_DEBUG_ISR("Scheduler finished to transmit "
+ "the frame/frames.\n");
- iwl4965_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND);
-
- errcnt = 0;
- for (; len > 0; len -= sizeof(u32), image++) {
- /* read data comes through single port, auto-incr addr */
- /* NOTE: Use the debugless read so we don't flood kernel log
- * if IWL_DL_IO is set */
- val = _iwl4965_read_direct32(priv, HBUS_TARG_MEM_RDAT);
- if (val != le32_to_cpu(*image)) {
- IWL_ERROR("uCode INST section is invalid at "
- "offset 0x%x, is 0x%x, s/b 0x%x\n",
- save_len - len, val, le32_to_cpu(*image));
- rc = -EIO;
- errcnt++;
- if (errcnt >= 20)
- break;
- }
+ /* Alive notification via Rx interrupt will do the real work */
+ if (inta & CSR_INT_BIT_ALIVE)
+ IWL_DEBUG_ISR("Alive interrupt\n");
}
+#endif
+ /* Safely ignore these bits for debug checks below */
+ inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
- iwl4965_release_nic_access(priv);
-
- if (!errcnt)
- IWL_DEBUG_INFO
- ("ucode image in INSTRUCTION memory is good\n");
-
- return rc;
-}
-
+ /* HW RF KILL switch toggled */
+ if (inta & CSR_INT_BIT_RF_KILL) {
+ int hw_rf_kill = 0;
+ if (!(iwl_read32(priv, CSR_GP_CNTRL) &
+ CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
+ hw_rf_kill = 1;
-/**
- * iwl4965_verify_inst_sparse - verify runtime uCode image in card vs. host,
- * using sample data 100 bytes apart. If these sample points are good,
- * it's a pretty good bet that everything between them is good, too.
- */
-static int iwl4965_verify_inst_sparse(struct iwl4965_priv *priv, __le32 *image, u32 len)
-{
- u32 val;
- int rc = 0;
- u32 errcnt = 0;
- u32 i;
+ IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n",
+ hw_rf_kill ? "disable radio":"enable radio");
- IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
+ /* driver only loads ucode once setting the interface up.
+ * the driver as well won't allow loading if RFKILL is set
+ * therefore no need to restart the driver from this handler
+ */
+ if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status))
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
- rc = iwl4965_grab_nic_access(priv);
- if (rc)
- return rc;
+ handled |= CSR_INT_BIT_RF_KILL;
+ }
- for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
- /* read data comes through single port, auto-incr addr */
- /* NOTE: Use the debugless read so we don't flood kernel log
- * if IWL_DL_IO is set */
- iwl4965_write_direct32(priv, HBUS_TARG_MEM_RADDR,
- i + RTC_INST_LOWER_BOUND);
- val = _iwl4965_read_direct32(priv, HBUS_TARG_MEM_RDAT);
- if (val != le32_to_cpu(*image)) {
-#if 0 /* Enable this if you want to see details */
- IWL_ERROR("uCode INST section is invalid at "
- "offset 0x%x, is 0x%x, s/b 0x%x\n",
- i, val, *image);
-#endif
- rc = -EIO;
- errcnt++;
- if (errcnt >= 3)
- break;
- }
+ /* Chip got too hot and stopped itself */
+ if (inta & CSR_INT_BIT_CT_KILL) {
+ IWL_ERROR("Microcode CT kill error detected.\n");
+ handled |= CSR_INT_BIT_CT_KILL;
}
- iwl4965_release_nic_access(priv);
+ /* Error detected by uCode */
+ if (inta & CSR_INT_BIT_SW_ERR) {
+ IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
+ inta);
+ iwl4965_irq_handle_error(priv);
+ handled |= CSR_INT_BIT_SW_ERR;
+ }
- return rc;
-}
+ /* uCode wakes up after power-down sleep */
+ if (inta & CSR_INT_BIT_WAKEUP) {
+ IWL_DEBUG_ISR("Wakeup interrupt\n");
+ iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
+ iwl_txq_update_write_ptr(priv, &priv->txq[0]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[1]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[2]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[3]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[4]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[5]);
+ handled |= CSR_INT_BIT_WAKEUP;
+ }
-/**
- * iwl4965_verify_ucode - determine which instruction image is in SRAM,
- * and verify its contents
- */
-static int iwl4965_verify_ucode(struct iwl4965_priv *priv)
-{
- __le32 *image;
- u32 len;
- int rc = 0;
+ /* All uCode command responses, including Tx command responses,
+ * Rx "responses" (frame-received notification), and other
+ * notifications from uCode come through here*/
+ if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
+ iwl_rx_handle(priv);
+ handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
+ }
- /* Try bootstrap */
- image = (__le32 *)priv->ucode_boot.v_addr;
- len = priv->ucode_boot.len;
- rc = iwl4965_verify_inst_sparse(priv, image, len);
- if (rc == 0) {
- IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
- return 0;
+ if (inta & CSR_INT_BIT_FH_TX) {
+ IWL_DEBUG_ISR("Tx interrupt\n");
+ handled |= CSR_INT_BIT_FH_TX;
+ /* FH finished to write, send event */
+ priv->ucode_write_complete = 1;
+ wake_up_interruptible(&priv->wait_command_queue);
}
- /* Try initialize */
- image = (__le32 *)priv->ucode_init.v_addr;
- len = priv->ucode_init.len;
- rc = iwl4965_verify_inst_sparse(priv, image, len);
- if (rc == 0) {
- IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
- return 0;
- }
+ if (inta & ~handled)
+ IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
- /* Try runtime/protocol */
- image = (__le32 *)priv->ucode_code.v_addr;
- len = priv->ucode_code.len;
- rc = iwl4965_verify_inst_sparse(priv, image, len);
- if (rc == 0) {
- IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
- return 0;
+ if (inta & ~CSR_INI_SET_MASK) {
+ IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
+ inta & ~CSR_INI_SET_MASK);
+ IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
}
- IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
-
- /* Since nothing seems to match, show first several data entries in
- * instruction SRAM, so maybe visual inspection will give a clue.
- * Selection of bootstrap image (vs. other images) is arbitrary. */
- image = (__le32 *)priv->ucode_boot.v_addr;
- len = priv->ucode_boot.len;
- rc = iwl4965_verify_inst_full(priv, image, len);
-
- return rc;
+ /* Re-enable all interrupts */
+ /* only Re-enable if diabled by irq */
+ if (test_bit(STATUS_INT_ENABLED, &priv->status))
+ iwl4965_enable_interrupts(priv);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (priv->debug_level & (IWL_DL_ISR)) {
+ inta = iwl_read32(priv, CSR_INT);
+ inta_mask = iwl_read32(priv, CSR_INT_MASK);
+ inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
+ IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
+ "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
+ }
+#endif
+ spin_unlock_irqrestore(&priv->lock, flags);
}
-
-/* check contents of special bootstrap uCode SRAM */
-static int iwl4965_verify_bsm(struct iwl4965_priv *priv)
+static irqreturn_t iwl4965_isr(int irq, void *data)
{
- __le32 *image = priv->ucode_boot.v_addr;
- u32 len = priv->ucode_boot.len;
- u32 reg;
- u32 val;
-
- IWL_DEBUG_INFO("Begin verify bsm\n");
-
- /* verify BSM SRAM contents */
- val = iwl4965_read_prph(priv, BSM_WR_DWCOUNT_REG);
- for (reg = BSM_SRAM_LOWER_BOUND;
- reg < BSM_SRAM_LOWER_BOUND + len;
- reg += sizeof(u32), image ++) {
- val = iwl4965_read_prph(priv, reg);
- if (val != le32_to_cpu(*image)) {
- IWL_ERROR("BSM uCode verification failed at "
- "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
- BSM_SRAM_LOWER_BOUND,
- reg - BSM_SRAM_LOWER_BOUND, len,
- val, le32_to_cpu(*image));
- return -EIO;
- }
- }
-
- IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
+ struct iwl_priv *priv = data;
+ u32 inta, inta_mask;
+ u32 inta_fh;
+ if (!priv)
+ return IRQ_NONE;
- return 0;
-}
+ spin_lock(&priv->lock);
-/**
- * iwl4965_load_bsm - Load bootstrap instructions
- *
- * BSM operation:
- *
- * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
- * in special SRAM that does not power down during RFKILL. When powering back
- * up after power-saving sleeps (or during initial uCode load), the BSM loads
- * the bootstrap program into the on-board processor, and starts it.
- *
- * The bootstrap program loads (via DMA) instructions and data for a new
- * program from host DRAM locations indicated by the host driver in the
- * BSM_DRAM_* registers. Once the new program is loaded, it starts
- * automatically.
- *
- * When initializing the NIC, the host driver points the BSM to the
- * "initialize" uCode image. This uCode sets up some internal data, then
- * notifies host via "initialize alive" that it is complete.
- *
- * The host then replaces the BSM_DRAM_* pointer values to point to the
- * normal runtime uCode instructions and a backup uCode data cache buffer
- * (filled initially with starting data values for the on-board processor),
- * then triggers the "initialize" uCode to load and launch the runtime uCode,
- * which begins normal operation.
- *
- * When doing a power-save shutdown, runtime uCode saves data SRAM into
- * the backup data cache in DRAM before SRAM is powered down.
- *
- * When powering back up, the BSM loads the bootstrap program. This reloads
- * the runtime uCode instructions and the backup data cache into SRAM,
- * and re-launches the runtime uCode from where it left off.
- */
-static int iwl4965_load_bsm(struct iwl4965_priv *priv)
-{
- __le32 *image = priv->ucode_boot.v_addr;
- u32 len = priv->ucode_boot.len;
- dma_addr_t pinst;
- dma_addr_t pdata;
- u32 inst_len;
- u32 data_len;
- int rc;
- int i;
- u32 done;
- u32 reg_offset;
+ /* Disable (but don't clear!) interrupts here to avoid
+ * back-to-back ISRs and sporadic interrupts from our NIC.
+ * If we have something to service, the tasklet will re-enable ints.
+ * If we *don't* have something, we'll re-enable before leaving here. */
+ inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
+ iwl_write32(priv, CSR_INT_MASK, 0x00000000);
- IWL_DEBUG_INFO("Begin load bsm\n");
+ /* Discover which interrupts are active/pending */
+ inta = iwl_read32(priv, CSR_INT);
+ inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- /* make sure bootstrap program is no larger than BSM's SRAM size */
- if (len > IWL_MAX_BSM_SIZE)
- return -EINVAL;
+ /* Ignore interrupt if there's nothing in NIC to service.
+ * This may be due to IRQ shared with another device,
+ * or due to sporadic interrupts thrown from our NIC. */
+ if (!inta && !inta_fh) {
+ IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
+ goto none;
+ }
- /* Tell bootstrap uCode where to find the "Initialize" uCode
- * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
- * NOTE: iwl4965_initialize_alive_start() will replace these values,
- * after the "initialize" uCode has run, to point to
- * runtime/protocol instructions and backup data cache. */
- pinst = priv->ucode_init.p_addr >> 4;
- pdata = priv->ucode_init_data.p_addr >> 4;
- inst_len = priv->ucode_init.len;
- data_len = priv->ucode_init_data.len;
-
- rc = iwl4965_grab_nic_access(priv);
- if (rc)
- return rc;
+ if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
+ /* Hardware disappeared. It might have already raised
+ * an interrupt */
+ IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
+ goto unplugged;
+ }
- iwl4965_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
- iwl4965_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
- iwl4965_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
- iwl4965_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
+ IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+ inta, inta_mask, inta_fh);
- /* Fill BSM memory with bootstrap instructions */
- for (reg_offset = BSM_SRAM_LOWER_BOUND;
- reg_offset < BSM_SRAM_LOWER_BOUND + len;
- reg_offset += sizeof(u32), image++)
- _iwl4965_write_prph(priv, reg_offset,
- le32_to_cpu(*image));
+ inta &= ~CSR_INT_BIT_SCD;
- rc = iwl4965_verify_bsm(priv);
- if (rc) {
- iwl4965_release_nic_access(priv);
- return rc;
- }
+ /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
+ if (likely(inta || inta_fh))
+ tasklet_schedule(&priv->irq_tasklet);
- /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
- iwl4965_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
- iwl4965_write_prph(priv, BSM_WR_MEM_DST_REG,
- RTC_INST_LOWER_BOUND);
- iwl4965_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
-
- /* Load bootstrap code into instruction SRAM now,
- * to prepare to load "initialize" uCode */
- iwl4965_write_prph(priv, BSM_WR_CTRL_REG,
- BSM_WR_CTRL_REG_BIT_START);
-
- /* Wait for load of bootstrap uCode to finish */
- for (i = 0; i < 100; i++) {
- done = iwl4965_read_prph(priv, BSM_WR_CTRL_REG);
- if (!(done & BSM_WR_CTRL_REG_BIT_START))
- break;
- udelay(10);
- }
- if (i < 100)
- IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i);
- else {
- IWL_ERROR("BSM write did not complete!\n");
- return -EIO;
- }
+ unplugged:
+ spin_unlock(&priv->lock);
+ return IRQ_HANDLED;
- /* Enable future boot loads whenever power management unit triggers it
- * (e.g. when powering back up after power-save shutdown) */
- iwl4965_write_prph(priv, BSM_WR_CTRL_REG,
- BSM_WR_CTRL_REG_BIT_START_EN);
+ none:
+ /* re-enable interrupts here since we don't have anything to service. */
+ /* only Re-enable if diabled by irq */
+ if (test_bit(STATUS_INT_ENABLED, &priv->status))
+ iwl4965_enable_interrupts(priv);
+ spin_unlock(&priv->lock);
+ return IRQ_NONE;
+}
- iwl4965_release_nic_access(priv);
+/******************************************************************************
+ *
+ * uCode download functions
+ *
+ ******************************************************************************/
- return 0;
+static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv)
+{
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
}
-static void iwl4965_nic_start(struct iwl4965_priv *priv)
+static void iwl4965_nic_start(struct iwl_priv *priv)
{
/* Remove all resets to allow NIC to operate */
- iwl4965_write32(priv, CSR_RESET, 0);
+ iwl_write32(priv, CSR_RESET, 0);
}
*
* Copy into buffers for card to fetch via bus-mastering
*/
-static int iwl4965_read_ucode(struct iwl4965_priv *priv)
+static int iwl4965_read_ucode(struct iwl_priv *priv)
{
- struct iwl4965_ucode *ucode;
+ struct iwl_ucode *ucode;
int ret;
const struct firmware *ucode_raw;
- const char *name = "iwlwifi-4965" IWL4965_UCODE_API ".ucode";
+ const char *name = priv->cfg->fw_name;
u8 *src;
size_t len;
u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
}
/* Verify that uCode images will fit in card's SRAM */
- if (inst_size > IWL_MAX_INST_SIZE) {
+ if (inst_size > priv->hw_params.max_inst_size) {
IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
inst_size);
ret = -EINVAL;
goto err_release;
}
- if (data_size > IWL_MAX_DATA_SIZE) {
+ if (data_size > priv->hw_params.max_data_size) {
IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
data_size);
ret = -EINVAL;
goto err_release;
}
- if (init_size > IWL_MAX_INST_SIZE) {
+ if (init_size > priv->hw_params.max_inst_size) {
IWL_DEBUG_INFO
("uCode init instr len %d too large to fit in\n",
init_size);
ret = -EINVAL;
goto err_release;
}
- if (init_data_size > IWL_MAX_DATA_SIZE) {
+ if (init_data_size > priv->hw_params.max_data_size) {
IWL_DEBUG_INFO
("uCode init data len %d too large to fit in\n",
init_data_size);
ret = -EINVAL;
goto err_release;
}
- if (boot_size > IWL_MAX_BSM_SIZE) {
+ if (boot_size > priv->hw_params.max_bsm_size) {
IWL_DEBUG_INFO
("uCode boot instr len %d too large to fit in\n",
boot_size);
return ret;
}
-
-/**
- * iwl4965_set_ucode_ptrs - Set uCode address location
- *
- * Tell initialization uCode where to find runtime uCode.
- *
- * BSM registers initially contain pointers to initialization uCode.
- * We need to replace them to load runtime uCode inst and data,
- * and to save runtime data when powering down.
- */
-static int iwl4965_set_ucode_ptrs(struct iwl4965_priv *priv)
-{
- dma_addr_t pinst;
- dma_addr_t pdata;
- int rc = 0;
- unsigned long flags;
-
- /* bits 35:4 for 4965 */
- pinst = priv->ucode_code.p_addr >> 4;
- pdata = priv->ucode_data_backup.p_addr >> 4;
-
- spin_lock_irqsave(&priv->lock, flags);
- rc = iwl4965_grab_nic_access(priv);
- if (rc) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
- }
-
- /* Tell bootstrap uCode where to find image to load */
- iwl4965_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
- iwl4965_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
- iwl4965_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
- priv->ucode_data.len);
-
- /* Inst bytecount must be last to set up, bit 31 signals uCode
- * that all new ptr/size info is in place */
- iwl4965_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
- priv->ucode_code.len | BSM_DRAM_INST_LOAD);
-
- iwl4965_release_nic_access(priv);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
-
- return rc;
-}
-
-/**
- * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
- *
- * Called after REPLY_ALIVE notification received from "initialize" uCode.
- *
- * The 4965 "initialize" ALIVE reply contains calibration data for:
- * Voltage, temperature, and MIMO tx gain correction, now stored in priv
- * (3945 does not contain this data).
- *
- * Tell "initialize" uCode to go ahead and load the runtime uCode.
-*/
-static void iwl4965_init_alive_start(struct iwl4965_priv *priv)
-{
- /* Check alive response for "valid" sign from uCode */
- if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
- /* We had an error bringing up the hardware, so take it
- * all the way back down so we can try again */
- IWL_DEBUG_INFO("Initialize Alive failed.\n");
- goto restart;
- }
-
- /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
- * This is a paranoid check, because we would not have gotten the
- * "initialize" alive if code weren't properly loaded. */
- if (iwl4965_verify_ucode(priv)) {
- /* Runtime instruction load was bad;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
- goto restart;
- }
-
- /* Calculate temperature */
- priv->temperature = iwl4965_get_temperature(priv);
-
- /* Send pointers to protocol/runtime uCode image ... init code will
- * load and launch runtime uCode, which will send us another "Alive"
- * notification. */
- IWL_DEBUG_INFO("Initialization Alive received.\n");
- if (iwl4965_set_ucode_ptrs(priv)) {
- /* Runtime instruction load won't happen;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
- goto restart;
- }
- return;
-
- restart:
- queue_work(priv->workqueue, &priv->restart);
-}
-
-
/**
- * iwl4965_alive_start - called after REPLY_ALIVE notification received
+ * iwl_alive_start - called after REPLY_ALIVE notification received
* from protocol/runtime uCode (initialization uCode's
- * Alive gets handled by iwl4965_init_alive_start()).
+ * Alive gets handled by iwl_init_alive_start()).
*/
-static void iwl4965_alive_start(struct iwl4965_priv *priv)
+static void iwl_alive_start(struct iwl_priv *priv)
{
- int rc = 0;
+ int ret = 0;
IWL_DEBUG_INFO("Runtime Alive received.\n");
/* Initialize uCode has loaded Runtime uCode ... verify inst image.
* This is a paranoid check, because we would not have gotten the
* "runtime" alive if code weren't properly loaded. */
- if (iwl4965_verify_ucode(priv)) {
+ if (iwl_verify_ucode(priv)) {
/* Runtime instruction load was bad;
* take it all the way back down so we can try again */
IWL_DEBUG_INFO("Bad runtime uCode load.\n");
goto restart;
}
- iwl4965_clear_stations_table(priv);
-
- rc = iwl4965_alive_notify(priv);
- if (rc) {
+ iwl_clear_stations_table(priv);
+ ret = priv->cfg->ops->lib->alive_notify(priv);
+ if (ret) {
IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
- rc);
+ ret);
goto restart;
}
/* After the ALIVE response, we can send host commands to 4965 uCode */
set_bit(STATUS_ALIVE, &priv->status);
- /* Clear out the uCode error bit if it is set */
- clear_bit(STATUS_FW_ERROR, &priv->status);
-
- if (iwl4965_is_rfkill(priv))
+ if (iwl_is_rfkill(priv))
return;
- ieee80211_start_queues(priv->hw);
+ ieee80211_wake_queues(priv->hw);
priv->active_rate = priv->rates_mask;
priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
- iwl4965_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
-
- if (iwl4965_is_associated(priv)) {
- struct iwl4965_rxon_cmd *active_rxon =
- (struct iwl4965_rxon_cmd *)(&priv->active_rxon);
+ if (iwl_is_associated(priv)) {
+ struct iwl_rxon_cmd *active_rxon =
+ (struct iwl_rxon_cmd *)&priv->active_rxon;
memcpy(&priv->staging_rxon, &priv->active_rxon,
sizeof(priv->staging_rxon));
/* Configure Bluetooth device coexistence support */
iwl4965_send_bt_config(priv);
+ iwl_reset_run_time_calib(priv);
+
/* Configure the adapter for unassociated operation */
iwl4965_commit_rxon(priv);
/* At this point, the NIC is initialized and operational */
- priv->notif_missed_beacons = 0;
+ iwl_rf_kill_ct_config(priv);
- iwl4965_rf_kill_ct_config(priv);
+ iwl_leds_register(priv);
IWL_DEBUG_INFO("ALIVE processing complete.\n");
set_bit(STATUS_READY, &priv->status);
if (priv->error_recovering)
iwl4965_error_recovery(priv);
+ iwl_power_update_mode(priv, 1);
+ ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
+
+ if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
+ iwl4965_set_mode(priv, priv->iw_mode);
+
return;
restart:
queue_work(priv->workqueue, &priv->restart);
}
-static void iwl4965_cancel_deferred_work(struct iwl4965_priv *priv);
+static void iwl_cancel_deferred_work(struct iwl_priv *priv);
-static void __iwl4965_down(struct iwl4965_priv *priv)
+static void __iwl4965_down(struct iwl_priv *priv)
{
unsigned long flags;
int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
- struct ieee80211_conf *conf = NULL;
IWL_DEBUG_INFO(DRV_NAME " is going down\n");
- conf = ieee80211_get_hw_conf(priv->hw);
-
if (!exit_pending)
set_bit(STATUS_EXIT_PENDING, &priv->status);
- iwl4965_clear_stations_table(priv);
+ iwl_leds_unregister(priv);
+
+ iwl_clear_stations_table(priv);
/* Unblock any waiting calls */
wake_up_interruptible_all(&priv->wait_command_queue);
clear_bit(STATUS_EXIT_PENDING, &priv->status);
/* stop and reset the on-board processor */
- iwl4965_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+ iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
/* tell the device to stop sending interrupts */
+ spin_lock_irqsave(&priv->lock, flags);
iwl4965_disable_interrupts(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ iwl_synchronize_irq(priv);
if (priv->mac80211_registered)
ieee80211_stop_queues(priv->hw);
/* If we have not previously called iwl4965_init() then
* clear all bits but the RF Kill and SUSPEND bits and return */
- if (!iwl4965_is_init(priv)) {
+ if (!iwl_is_init(priv)) {
priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
STATUS_RF_KILL_HW |
test_bit(STATUS_RF_KILL_SW, &priv->status) <<
test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
STATUS_GEO_CONFIGURED |
test_bit(STATUS_IN_SUSPEND, &priv->status) <<
- STATUS_IN_SUSPEND;
+ STATUS_IN_SUSPEND |
+ test_bit(STATUS_EXIT_PENDING, &priv->status) <<
+ STATUS_EXIT_PENDING;
goto exit;
}
test_bit(STATUS_IN_SUSPEND, &priv->status) <<
STATUS_IN_SUSPEND |
test_bit(STATUS_FW_ERROR, &priv->status) <<
- STATUS_FW_ERROR;
+ STATUS_FW_ERROR |
+ test_bit(STATUS_EXIT_PENDING, &priv->status) <<
+ STATUS_EXIT_PENDING;
spin_lock_irqsave(&priv->lock, flags);
- iwl4965_clear_bit(priv, CSR_GP_CNTRL,
+ iwl_clear_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
spin_unlock_irqrestore(&priv->lock, flags);
- iwl4965_hw_txq_ctx_stop(priv);
- iwl4965_hw_rxq_stop(priv);
+ iwl_txq_ctx_stop(priv);
+ iwl_rxq_stop(priv);
spin_lock_irqsave(&priv->lock, flags);
- if (!iwl4965_grab_nic_access(priv)) {
- iwl4965_write_prph(priv, APMG_CLK_DIS_REG,
+ if (!iwl_grab_nic_access(priv)) {
+ iwl_write_prph(priv, APMG_CLK_DIS_REG,
APMG_CLK_VAL_DMA_CLK_RQT);
- iwl4965_release_nic_access(priv);
+ iwl_release_nic_access(priv);
}
spin_unlock_irqrestore(&priv->lock, flags);
udelay(5);
- iwl4965_hw_nic_stop_master(priv);
- iwl4965_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
- iwl4965_hw_nic_reset(priv);
+ /* FIXME: apm_ops.suspend(priv) */
+ priv->cfg->ops->lib->apm_ops.reset(priv);
+ priv->cfg->ops->lib->free_shared_mem(priv);
exit:
- memset(&priv->card_alive, 0, sizeof(struct iwl4965_alive_resp));
+ memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
if (priv->ibss_beacon)
dev_kfree_skb(priv->ibss_beacon);
priv->ibss_beacon = NULL;
/* clear out any free frames */
- iwl4965_clear_free_frames(priv);
+ iwl_clear_free_frames(priv);
}
-static void iwl4965_down(struct iwl4965_priv *priv)
+static void iwl4965_down(struct iwl_priv *priv)
{
mutex_lock(&priv->mutex);
__iwl4965_down(priv);
mutex_unlock(&priv->mutex);
- iwl4965_cancel_deferred_work(priv);
+ iwl_cancel_deferred_work(priv);
}
#define MAX_HW_RESTARTS 5
-static int __iwl4965_up(struct iwl4965_priv *priv)
+static int __iwl4965_up(struct iwl_priv *priv)
{
- int rc, i;
+ int i;
+ int ret;
if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
IWL_WARNING("Exit pending; will not bring the NIC up\n");
return -EIO;
}
- if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
- IWL_WARNING("Radio disabled by SW RF kill (module "
- "parameter)\n");
- return -ENODEV;
- }
-
if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
IWL_ERROR("ucode not available for device bringup\n");
return -EIO;
}
/* If platform's RF_KILL switch is NOT set to KILL */
- if (iwl4965_read32(priv, CSR_GP_CNTRL) &
+ if (iwl_read32(priv, CSR_GP_CNTRL) &
CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
clear_bit(STATUS_RF_KILL_HW, &priv->status);
- else {
+ else
set_bit(STATUS_RF_KILL_HW, &priv->status);
- if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
- IWL_WARNING("Radio disabled by HW RF Kill switch\n");
- return -ENODEV;
- }
+
+ if (!test_bit(STATUS_IN_SUSPEND, &priv->status) &&
+ iwl_is_rfkill(priv)) {
+ iwl_rfkill_set_hw_state(priv);
+ IWL_WARNING("Radio disabled by %s RF Kill switch\n",
+ test_bit(STATUS_RF_KILL_HW, &priv->status) ? "HW" : "SW");
+ return -ENODEV;
}
- iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
+ iwl_rfkill_set_hw_state(priv);
+ iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
- rc = iwl4965_hw_nic_init(priv);
- if (rc) {
- IWL_ERROR("Unable to int nic\n");
- return rc;
+ ret = priv->cfg->ops->lib->alloc_shared_mem(priv);
+ if (ret) {
+ IWL_ERROR("Unable to allocate shared memory\n");
+ return ret;
+ }
+
+ ret = iwl_hw_nic_init(priv);
+ if (ret) {
+ IWL_ERROR("Unable to init nic\n");
+ return ret;
}
/* make sure rfkill handshake bits are cleared */
- iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
/* clear (again), then enable host interrupts */
- iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
+ iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
iwl4965_enable_interrupts(priv);
/* really make sure rfkill handshake bits are cleared */
- iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
/* Copy original ucode data image from disk into backup cache.
* This will be used to initialize the on-board processor's
priv->ucode_data.len);
/* We return success when we resume from suspend and rf_kill is on. */
- if (test_bit(STATUS_RF_KILL_HW, &priv->status))
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status) ||
+ test_bit(STATUS_RF_KILL_SW, &priv->status))
return 0;
for (i = 0; i < MAX_HW_RESTARTS; i++) {
- iwl4965_clear_stations_table(priv);
+ iwl_clear_stations_table(priv);
/* load bootstrap state machine,
* load bootstrap program into processor's memory,
* prepare to load the "initialize" uCode */
- rc = iwl4965_load_bsm(priv);
+ ret = priv->cfg->ops->lib->load_ucode(priv);
- if (rc) {
- IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc);
+ if (ret) {
+ IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret);
continue;
}
+ /* Clear out the uCode error bit if it is set */
+ clear_bit(STATUS_FW_ERROR, &priv->status);
+
/* start card; "initialize" will load runtime ucode */
iwl4965_nic_start(priv);
set_bit(STATUS_EXIT_PENDING, &priv->status);
__iwl4965_down(priv);
+ clear_bit(STATUS_EXIT_PENDING, &priv->status);
/* tried to restart and config the device for as long as our
* patience could withstand */
*
*****************************************************************************/
-static void iwl4965_bg_init_alive_start(struct work_struct *data)
-{
- struct iwl4965_priv *priv =
- container_of(data, struct iwl4965_priv, init_alive_start.work);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
- iwl4965_init_alive_start(priv);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl4965_bg_alive_start(struct work_struct *data)
-{
- struct iwl4965_priv *priv =
- container_of(data, struct iwl4965_priv, alive_start.work);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
- iwl4965_alive_start(priv);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl4965_bg_rf_kill(struct work_struct *work)
+static void iwl_bg_init_alive_start(struct work_struct *data)
{
- struct iwl4965_priv *priv = container_of(work, struct iwl4965_priv, rf_kill);
-
- wake_up_interruptible(&priv->wait_command_queue);
+ struct iwl_priv *priv =
+ container_of(data, struct iwl_priv, init_alive_start.work);
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
mutex_lock(&priv->mutex);
-
- if (!iwl4965_is_rfkill(priv)) {
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL,
- "HW and/or SW RF Kill no longer active, restarting "
- "device\n");
- if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
- queue_work(priv->workqueue, &priv->restart);
- } else {
-
- if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
- IWL_DEBUG_RF_KILL("Can not turn radio back on - "
- "disabled by SW switch\n");
- else
- IWL_WARNING("Radio Frequency Kill Switch is On:\n"
- "Kill switch must be turned off for "
- "wireless networking to work.\n");
- }
+ priv->cfg->ops->lib->init_alive_start(priv);
mutex_unlock(&priv->mutex);
}
-#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
-
-static void iwl4965_bg_scan_check(struct work_struct *data)
+static void iwl_bg_alive_start(struct work_struct *data)
{
- struct iwl4965_priv *priv =
- container_of(data, struct iwl4965_priv, scan_check.work);
+ struct iwl_priv *priv =
+ container_of(data, struct iwl_priv, alive_start.work);
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
- mutex_lock(&priv->mutex);
- if (test_bit(STATUS_SCANNING, &priv->status) ||
- test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
- "Scan completion watchdog resetting adapter (%dms)\n",
- jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
-
- if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
- iwl4965_send_scan_abort(priv);
- }
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl4965_bg_request_scan(struct work_struct *data)
-{
- struct iwl4965_priv *priv =
- container_of(data, struct iwl4965_priv, request_scan);
- struct iwl4965_host_cmd cmd = {
- .id = REPLY_SCAN_CMD,
- .len = sizeof(struct iwl4965_scan_cmd),
- .meta.flags = CMD_SIZE_HUGE,
- };
- int rc = 0;
- struct iwl4965_scan_cmd *scan;
- struct ieee80211_conf *conf = NULL;
- u8 direct_mask;
- int phymode;
-
- conf = ieee80211_get_hw_conf(priv->hw);
-
- mutex_lock(&priv->mutex);
-
- if (!iwl4965_is_ready(priv)) {
- IWL_WARNING("request scan called when driver not ready.\n");
- goto done;
- }
-
- /* Make sure the scan wasn't cancelled before this queued work
- * was given the chance to run... */
- if (!test_bit(STATUS_SCANNING, &priv->status))
- goto done;
-
- /* This should never be called or scheduled if there is currently
- * a scan active in the hardware. */
- if (test_bit(STATUS_SCAN_HW, &priv->status)) {
- IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
- "Ignoring second request.\n");
- rc = -EIO;
- goto done;
- }
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
- goto done;
- }
-
- if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
- goto done;
- }
-
- if (iwl4965_is_rfkill(priv)) {
- IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
- goto done;
- }
+ mutex_lock(&priv->mutex);
+ iwl_alive_start(priv);
+ mutex_unlock(&priv->mutex);
+}
- if (!test_bit(STATUS_READY, &priv->status)) {
- IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
- goto done;
- }
+static void iwl4965_bg_rf_kill(struct work_struct *work)
+{
+ struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
- if (!priv->scan_bands) {
- IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
- goto done;
- }
+ wake_up_interruptible(&priv->wait_command_queue);
- if (!priv->scan) {
- priv->scan = kmalloc(sizeof(struct iwl4965_scan_cmd) +
- IWL_MAX_SCAN_SIZE, GFP_KERNEL);
- if (!priv->scan) {
- rc = -ENOMEM;
- goto done;
- }
- }
- scan = priv->scan;
- memset(scan, 0, sizeof(struct iwl4965_scan_cmd) + IWL_MAX_SCAN_SIZE);
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
- scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
- scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
+ mutex_lock(&priv->mutex);
- if (iwl4965_is_associated(priv)) {
- u16 interval = 0;
- u32 extra;
- u32 suspend_time = 100;
- u32 scan_suspend_time = 100;
- unsigned long flags;
+ if (!iwl_is_rfkill(priv)) {
+ IWL_DEBUG(IWL_DL_RF_KILL,
+ "HW and/or SW RF Kill no longer active, restarting "
+ "device\n");
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
+ queue_work(priv->workqueue, &priv->restart);
+ } else {
+ /* make sure mac80211 stop sending Tx frame */
+ if (priv->mac80211_registered)
+ ieee80211_stop_queues(priv->hw);
- IWL_DEBUG_INFO("Scanning while associated...\n");
+ if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
+ IWL_DEBUG_RF_KILL("Can not turn radio back on - "
+ "disabled by SW switch\n");
+ else
+ IWL_WARNING("Radio Frequency Kill Switch is On:\n"
+ "Kill switch must be turned off for "
+ "wireless networking to work.\n");
+ }
+ iwl_rfkill_set_hw_state(priv);
- spin_lock_irqsave(&priv->lock, flags);
- interval = priv->beacon_int;
- spin_unlock_irqrestore(&priv->lock, flags);
+ mutex_unlock(&priv->mutex);
+}
- scan->suspend_time = 0;
- scan->max_out_time = cpu_to_le32(200 * 1024);
- if (!interval)
- interval = suspend_time;
-
- extra = (suspend_time / interval) << 22;
- scan_suspend_time = (extra |
- ((suspend_time % interval) * 1024));
- scan->suspend_time = cpu_to_le32(scan_suspend_time);
- IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
- scan_suspend_time, interval);
- }
-
- /* We should add the ability for user to lock to PASSIVE ONLY */
- if (priv->one_direct_scan) {
- IWL_DEBUG_SCAN
- ("Kicking off one direct scan for '%s'\n",
- iwl4965_escape_essid(priv->direct_ssid,
- priv->direct_ssid_len));
- scan->direct_scan[0].id = WLAN_EID_SSID;
- scan->direct_scan[0].len = priv->direct_ssid_len;
- memcpy(scan->direct_scan[0].ssid,
- priv->direct_ssid, priv->direct_ssid_len);
- direct_mask = 1;
- } else if (!iwl4965_is_associated(priv) && priv->essid_len) {
- scan->direct_scan[0].id = WLAN_EID_SSID;
- scan->direct_scan[0].len = priv->essid_len;
- memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
- direct_mask = 1;
- } else
- direct_mask = 0;
-
- /* We don't build a direct scan probe request; the uCode will do
- * that based on the direct_mask added to each channel entry */
- scan->tx_cmd.len = cpu_to_le16(
- iwl4965_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
- IWL_MAX_SCAN_SIZE - sizeof(*scan), 0));
- scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
- scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id;
- scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
-
- /* flags + rate selection */
-
- scan->tx_cmd.tx_flags |= cpu_to_le32(0x200);
-
- switch (priv->scan_bands) {
- case 2:
- scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
- scan->tx_cmd.rate_n_flags =
- iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP,
- RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK);
-
- scan->good_CRC_th = 0;
- phymode = MODE_IEEE80211G;
- break;
+static void iwl4965_bg_set_monitor(struct work_struct *work)
+{
+ struct iwl_priv *priv = container_of(work,
+ struct iwl_priv, set_monitor);
+ int ret;
- case 1:
- scan->tx_cmd.rate_n_flags =
- iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP,
- RATE_MCS_ANT_B_MSK);
- scan->good_CRC_th = IWL_GOOD_CRC_TH;
- phymode = MODE_IEEE80211A;
- break;
+ IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n");
- default:
- IWL_WARNING("Invalid scan band count\n");
- goto done;
- }
+ mutex_lock(&priv->mutex);
- /* select Rx chains */
+ ret = iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR);
- /* Force use of chains B and C (0x6) for scan Rx.
- * Avoid A (0x1) because of its off-channel reception on A-band.
- * MIMO is not used here, but value is required to make uCode happy. */
- scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK |
- cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) |
- (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) |
- (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS));
+ if (ret) {
+ if (ret == -EAGAIN)
+ IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n");
+ else
+ IWL_ERROR("iwl4965_set_mode() failed ret = %d\n", ret);
+ }
- if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR)
- scan->filter_flags = RXON_FILTER_PROMISC_MSK;
+ mutex_unlock(&priv->mutex);
+}
- if (direct_mask)
- IWL_DEBUG_SCAN
- ("Initiating direct scan for %s.\n",
- iwl4965_escape_essid(priv->essid, priv->essid_len));
- else
- IWL_DEBUG_SCAN("Initiating indirect scan.\n");
+static void iwl_bg_run_time_calib_work(struct work_struct *work)
+{
+ struct iwl_priv *priv = container_of(work, struct iwl_priv,
+ run_time_calib_work);
- scan->channel_count =
- iwl4965_get_channels_for_scan(
- priv, phymode, 1, /* active */
- direct_mask,
- (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
+ mutex_lock(&priv->mutex);
- cmd.len += le16_to_cpu(scan->tx_cmd.len) +
- scan->channel_count * sizeof(struct iwl4965_scan_channel);
- cmd.data = scan;
- scan->len = cpu_to_le16(cmd.len);
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
+ test_bit(STATUS_SCANNING, &priv->status)) {
+ mutex_unlock(&priv->mutex);
+ return;
+ }
- set_bit(STATUS_SCAN_HW, &priv->status);
- rc = iwl4965_send_cmd_sync(priv, &cmd);
- if (rc)
- goto done;
+ if (priv->start_calib) {
+ iwl_chain_noise_calibration(priv, &priv->statistics);
- queue_delayed_work(priv->workqueue, &priv->scan_check,
- IWL_SCAN_CHECK_WATCHDOG);
+ iwl_sensitivity_calibration(priv, &priv->statistics);
+ }
mutex_unlock(&priv->mutex);
return;
-
- done:
- /* inform mac80211 scan aborted */
- queue_work(priv->workqueue, &priv->scan_completed);
- mutex_unlock(&priv->mutex);
}
static void iwl4965_bg_up(struct work_struct *data)
{
- struct iwl4965_priv *priv = container_of(data, struct iwl4965_priv, up);
+ struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
static void iwl4965_bg_restart(struct work_struct *data)
{
- struct iwl4965_priv *priv = container_of(data, struct iwl4965_priv, restart);
+ struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
static void iwl4965_bg_rx_replenish(struct work_struct *data)
{
- struct iwl4965_priv *priv =
- container_of(data, struct iwl4965_priv, rx_replenish);
+ struct iwl_priv *priv =
+ container_of(data, struct iwl_priv, rx_replenish);
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
mutex_lock(&priv->mutex);
- iwl4965_rx_replenish(priv);
+ iwl_rx_replenish(priv);
mutex_unlock(&priv->mutex);
}
#define IWL_DELAY_NEXT_SCAN (HZ*2)
-static void iwl4965_bg_post_associate(struct work_struct *data)
+static void iwl4965_post_associate(struct iwl_priv *priv)
{
- struct iwl4965_priv *priv = container_of(data, struct iwl4965_priv,
- post_associate.work);
-
- int rc = 0;
struct ieee80211_conf *conf = NULL;
+ int ret = 0;
DECLARE_MAC_BUF(mac);
if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
- mutex_lock(&priv->mutex);
- if (!priv->vif || !priv->is_open) {
- mutex_unlock(&priv->mutex);
+ if (!priv->vif || !priv->is_open)
return;
- }
- iwl4965_scan_cancel_timeout(priv, 200);
+
+ iwl_scan_cancel_timeout(priv, 200);
conf = ieee80211_get_hw_conf(priv->hw);
memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
iwl4965_setup_rxon_timing(priv);
- rc = iwl4965_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
sizeof(priv->rxon_timing), &priv->rxon_timing);
- if (rc)
+ if (ret)
IWL_WARNING("REPLY_RXON_TIMING failed - "
"Attempting to continue.\n");
priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
-#ifdef CONFIG_IWL4965_HT
if (priv->current_ht_config.is_ht)
- iwl4965_set_rxon_ht(priv, &priv->current_ht_config);
-#endif /* CONFIG_IWL4965_HT*/
- iwl4965_set_rxon_chain(priv);
+ iwl_set_rxon_ht(priv, &priv->current_ht_config);
+
+ iwl_set_rxon_chain(priv);
priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
switch (priv->iw_mode) {
case IEEE80211_IF_TYPE_STA:
- iwl4965_rate_scale_init(priv->hw, IWL_AP_ID);
break;
case IEEE80211_IF_TYPE_IBSS:
- /* clear out the station table */
- iwl4965_clear_stations_table(priv);
+ /* assume default assoc id */
+ priv->assoc_id = 1;
- iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0);
- iwl4965_rxon_add_station(priv, priv->bssid, 0);
- iwl4965_rate_scale_init(priv->hw, IWL_STA_ID);
+ iwl_rxon_add_station(priv, priv->bssid, 0);
iwl4965_send_beacon_cmd(priv);
break;
break;
}
- iwl4965_sequence_reset(priv);
-
-#ifdef CONFIG_IWL4965_SENSITIVITY
/* Enable Rx differential gain and sensitivity calibrations */
- iwl4965_chain_noise_reset(priv);
+ iwl_chain_noise_reset(priv);
priv->start_calib = 1;
-#endif /* CONFIG_IWL4965_SENSITIVITY */
if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
priv->assoc_station_added = 1;
-#ifdef CONFIG_IWL4965_QOS
iwl4965_activate_qos(priv, 0);
-#endif /* CONFIG_IWL4965_QOS */
+
+ iwl_power_update_mode(priv, 0);
/* we have just associated, don't start scan too early */
priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
- mutex_unlock(&priv->mutex);
}
-static void iwl4965_bg_abort_scan(struct work_struct *work)
-{
- struct iwl4965_priv *priv = container_of(work, struct iwl4965_priv, abort_scan);
- if (!iwl4965_is_ready(priv))
- return;
+static void iwl4965_bg_post_associate(struct work_struct *data)
+{
+ struct iwl_priv *priv = container_of(data, struct iwl_priv,
+ post_associate.work);
mutex_lock(&priv->mutex);
-
- set_bit(STATUS_SCAN_ABORTING, &priv->status);
- iwl4965_send_scan_abort(priv);
-
+ iwl4965_post_associate(priv);
mutex_unlock(&priv->mutex);
+
}
static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
-static void iwl4965_bg_scan_completed(struct work_struct *work)
+static void iwl_bg_scan_completed(struct work_struct *work)
{
- struct iwl4965_priv *priv =
- container_of(work, struct iwl4965_priv, scan_completed);
+ struct iwl_priv *priv =
+ container_of(work, struct iwl_priv, scan_completed);
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n");
+ IWL_DEBUG_SCAN("SCAN complete scan\n");
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
/* Since setting the TXPOWER may have been deferred while
* performing the scan, fire one off */
mutex_lock(&priv->mutex);
- iwl4965_hw_reg_send_txpower(priv);
+ iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
mutex_unlock(&priv->mutex);
}
*
*****************************************************************************/
-#define UCODE_READY_TIMEOUT (2 * HZ)
+#define UCODE_READY_TIMEOUT (4 * HZ)
static int iwl4965_mac_start(struct ieee80211_hw *hw)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
int ret;
IWL_DEBUG_MAC80211("enter\n");
/* we should be verifying the device is ready to be opened */
mutex_lock(&priv->mutex);
- memset(&priv->staging_rxon, 0, sizeof(struct iwl4965_rxon_cmd));
+ memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd));
/* fetch ucode file from disk, alloc and copy to bus-master buffers ...
* ucode filename and max sizes are card-specific. */
if (test_bit(STATUS_IN_SUSPEND, &priv->status))
return 0;
- /* Wait for START_ALIVE from ucode. Otherwise callbacks from
+ /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
* mac80211 will not be run successfully. */
ret = wait_event_interruptible_timeout(priv->wait_command_queue,
test_bit(STATUS_READY, &priv->status),
UCODE_READY_TIMEOUT);
if (!ret) {
if (!test_bit(STATUS_READY, &priv->status)) {
- IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
- jiffies_to_msecs(UCODE_READY_TIMEOUT));
+ IWL_ERROR("START_ALIVE timeout after %dms.\n",
+ jiffies_to_msecs(UCODE_READY_TIMEOUT));
ret = -ETIMEDOUT;
goto out_release_irq;
}
static void iwl4965_mac_stop(struct ieee80211_hw *hw)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
IWL_DEBUG_MAC80211("enter\n");
priv->is_open = 0;
- if (iwl4965_is_ready_rf(priv)) {
+ if (iwl_is_ready_rf(priv)) {
/* stop mac, cancel any scan request and clear
* RXON_FILTER_ASSOC_MSK BIT
*/
mutex_lock(&priv->mutex);
- iwl4965_scan_cancel_timeout(priv, 100);
+ iwl_scan_cancel_timeout(priv, 100);
cancel_delayed_work(&priv->post_associate);
mutex_unlock(&priv->mutex);
}
IWL_DEBUG_MAC80211("leave\n");
}
-static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *ctl)
+static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
IWL_DEBUG_MAC80211("enter\n");
}
IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
- ctl->tx_rate);
+ ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
- if (iwl4965_tx_skb(priv, skb, ctl))
+ if (iwl_tx_skb(priv, skb))
dev_kfree_skb_any(skb);
IWL_DEBUG_MAC80211("leave\n");
static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
struct ieee80211_if_init_conf *conf)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
unsigned long flags;
DECLARE_MAC_BUF(mac);
memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
}
- if (iwl4965_is_ready(priv))
- iwl4965_set_mode(priv, conf->type);
+ if (iwl4965_set_mode(priv, conf->type) == -EAGAIN)
+ /* we are not ready, will run again when ready */
+ set_bit(STATUS_MODE_PENDING, &priv->status);
mutex_unlock(&priv->mutex);
*/
static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
{
- struct iwl4965_priv *priv = hw->priv;
- const struct iwl4965_channel_info *ch_info;
+ struct iwl_priv *priv = hw->priv;
+ const struct iwl_channel_info *ch_info;
unsigned long flags;
int ret = 0;
+ u16 channel;
mutex_lock(&priv->mutex);
- IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel);
+ IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
- if (!iwl4965_is_ready(priv)) {
+ if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n");
+ goto out;
+ }
+
+ if (!conf->radio_enabled)
+ iwl_radio_kill_sw_disable_radio(priv);
+
+ if (!iwl_is_ready(priv)) {
IWL_DEBUG_MAC80211("leave - not ready\n");
ret = -EIO;
goto out;
}
- if (unlikely(!iwl4965_param_disable_hw_scan &&
+ if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
test_bit(STATUS_SCANNING, &priv->status))) {
IWL_DEBUG_MAC80211("leave - scanning\n");
set_bit(STATUS_CONF_PENDING, &priv->status);
return 0;
}
- spin_lock_irqsave(&priv->lock, flags);
-
- ch_info = iwl4965_get_channel_info(priv, conf->phymode, conf->channel);
+ channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
+ ch_info = iwl_get_channel_info(priv, conf->channel->band, channel);
if (!is_channel_valid(ch_info)) {
- IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
- conf->channel, conf->phymode);
IWL_DEBUG_MAC80211("leave - invalid channel\n");
- spin_unlock_irqrestore(&priv->lock, flags);
ret = -EINVAL;
goto out;
}
-#ifdef CONFIG_IWL4965_HT
- /* if we are switching fron ht to 2.4 clear flags
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS &&
+ !is_channel_ibss(ch_info)) {
+ IWL_ERROR("channel %d in band %d not IBSS channel\n",
+ conf->channel->hw_value, conf->channel->band);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /* if we are switching from ht to 2.4 clear flags
* from any ht related info since 2.4 does not
* support ht */
- if ((le16_to_cpu(priv->staging_rxon.channel) != conf->channel)
+ if ((le16_to_cpu(priv->staging_rxon.channel) != channel)
#ifdef IEEE80211_CONF_CHANNEL_SWITCH
&& !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH)
#endif
)
priv->staging_rxon.flags = 0;
-#endif /* CONFIG_IWL4965_HT */
- iwl4965_set_rxon_channel(priv, conf->phymode, conf->channel);
+ iwl_set_rxon_channel(priv, conf->channel->band, channel);
- iwl4965_set_flags_for_phymode(priv, conf->phymode);
+ iwl_set_flags_for_band(priv, conf->channel->band);
/* The list of supported rates and rate mask can be different
- * for each phymode; since the phymode may have changed, reset
+ * for each band; since the band may have changed, reset
* the rate mask to what mac80211 lists */
iwl4965_set_rate(priv);
}
#endif
- iwl4965_radio_kill_sw(priv, !conf->radio_enabled);
-
if (!conf->radio_enabled) {
IWL_DEBUG_MAC80211("leave - radio disabled\n");
goto out;
}
- if (iwl4965_is_rfkill(priv)) {
+ if (iwl_is_rfkill(priv)) {
IWL_DEBUG_MAC80211("leave - RF kill\n");
ret = -EIO;
goto out;
}
+ IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n",
+ priv->tx_power_user_lmt, conf->power_level);
+
+ iwl_set_tx_power(priv, conf->power_level, false);
+
iwl4965_set_rate(priv);
if (memcmp(&priv->active_rxon,
return ret;
}
-static void iwl4965_config_ap(struct iwl4965_priv *priv)
+static void iwl4965_config_ap(struct iwl_priv *priv)
{
- int rc = 0;
+ int ret = 0;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
/* The following should be done only at AP bring up */
- if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) {
+ if (!(iwl_is_associated(priv))) {
/* RXON - unassoc (to set timing command) */
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
/* RXON Timing */
memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
iwl4965_setup_rxon_timing(priv);
- rc = iwl4965_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
sizeof(priv->rxon_timing), &priv->rxon_timing);
- if (rc)
+ if (ret)
IWL_WARNING("REPLY_RXON_TIMING failed - "
"Attempting to continue.\n");
- iwl4965_set_rxon_chain(priv);
+ iwl_set_rxon_chain(priv);
/* FIXME: what should be the assoc_id for AP? */
priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
/* restore RXON assoc */
priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
iwl4965_commit_rxon(priv);
-#ifdef CONFIG_IWL4965_QOS
iwl4965_activate_qos(priv, 1);
-#endif
- iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0);
+ iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
}
iwl4965_send_beacon_cmd(priv);
struct ieee80211_vif *vif,
struct ieee80211_if_conf *conf)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
DECLARE_MAC_BUF(mac);
unsigned long flags;
int rc;
if (conf == NULL)
return -EIO;
+ if (priv->vif != vif) {
+ IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
+ return 0;
+ }
+
if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
(!conf->beacon || !conf->ssid_len)) {
IWL_DEBUG_MAC80211
return 0;
}
- if (!iwl4965_is_alive(priv))
+ if (!iwl_is_alive(priv))
return -EAGAIN;
mutex_lock(&priv->mutex);
if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
!(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
*/
- if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) {
- IWL_DEBUG_MAC80211("leave - scanning\n");
- mutex_unlock(&priv->mutex);
- return 0;
- }
-
- if (priv->vif != vif) {
- IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
- mutex_unlock(&priv->mutex);
- return 0;
- }
if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
if (!conf->bssid) {
priv->ibss_beacon = conf->beacon;
}
- if (iwl4965_is_rfkill(priv))
+ if (iwl_is_rfkill(priv))
goto done;
if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
!is_multicast_ether_addr(conf->bssid)) {
/* If there is currently a HW scan going on in the background
* then we need to cancel it else the RXON below will fail. */
- if (iwl4965_scan_cancel_timeout(priv, 100)) {
+ if (iwl_scan_cancel_timeout(priv, 100)) {
IWL_WARNING("Aborted scan still in progress "
"after 100ms\n");
IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
else {
rc = iwl4965_commit_rxon(priv);
if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
- iwl4965_rxon_add_station(
+ iwl_rxon_add_station(
priv, priv->active_rxon.bssid_addr, 1);
}
} else {
- iwl4965_scan_cancel_timeout(priv, 100);
+ iwl_scan_cancel_timeout(priv, 100);
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwl4965_commit_rxon(priv);
}
unsigned int *total_flags,
int mc_count, struct dev_addr_list *mc_list)
{
- /*
- * XXX: dummy
- * see also iwl4965_connection_init_rx_config
- */
- *total_flags = 0;
+ struct iwl_priv *priv = hw->priv;
+
+ if (changed_flags & (*total_flags) & FIF_OTHER_BSS) {
+ IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
+ IEEE80211_IF_TYPE_MNTR,
+ changed_flags, *total_flags);
+ /* queue work 'cuz mac80211 is holding a lock which
+ * prevents us from issuing (synchronous) f/w cmds */
+ queue_work(priv->workqueue, &priv->set_monitor);
+ }
+ *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI |
+ FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
}
static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_if_init_conf *conf)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
IWL_DEBUG_MAC80211("enter\n");
mutex_lock(&priv->mutex);
- if (iwl4965_is_ready_rf(priv)) {
- iwl4965_scan_cancel_timeout(priv, 100);
+ if (iwl_is_ready_rf(priv)) {
+ iwl_scan_cancel_timeout(priv, 100);
cancel_delayed_work(&priv->post_associate);
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwl4965_commit_rxon(priv);
}
+#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
u32 changes)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
if (changes & BSS_CHANGED_ERP_PREAMBLE) {
+ IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
+ bss_conf->use_short_preamble);
if (bss_conf->use_short_preamble)
priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
else
}
if (changes & BSS_CHANGED_ERP_CTS_PROT) {
- if (bss_conf->use_cts_prot && (priv->phymode != MODE_IEEE80211A))
+ IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
+ if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
else
priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
}
+ if (changes & BSS_CHANGED_HT) {
+ IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht);
+ iwl4965_ht_conf(priv, bss_conf);
+ iwl_set_rxon_chain(priv);
+ }
+
if (changes & BSS_CHANGED_ASSOC) {
- /*
- * TODO:
- * do stuff instead of sniffing assoc resp
- */
+ IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
+ /* This should never happen as this function should
+ * never be called from interrupt context. */
+ if (WARN_ON_ONCE(in_interrupt()))
+ return;
+ if (bss_conf->assoc) {
+ priv->assoc_id = bss_conf->aid;
+ priv->beacon_int = bss_conf->beacon_int;
+ priv->timestamp = bss_conf->timestamp;
+ priv->assoc_capability = bss_conf->assoc_capability;
+ priv->next_scan_jiffies = jiffies +
+ IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
+ mutex_lock(&priv->mutex);
+ iwl4965_post_associate(priv);
+ mutex_unlock(&priv->mutex);
+ } else {
+ priv->assoc_id = 0;
+ IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
+ }
+ } else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
+ IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
+ iwl_send_rxon_assoc(priv);
}
- if (iwl4965_is_associated(priv))
- iwl4965_send_rxon_assoc(priv);
}
static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
{
int rc = 0;
unsigned long flags;
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
IWL_DEBUG_MAC80211("enter\n");
mutex_lock(&priv->mutex);
spin_lock_irqsave(&priv->lock, flags);
- if (!iwl4965_is_ready_rf(priv)) {
+ if (!iwl_is_ready_rf(priv)) {
rc = -EIO;
IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
goto out_unlock;
}
if (len) {
IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
- iwl4965_escape_essid(ssid, len), (int)len);
+ iwl_escape_essid(ssid, len), (int)len);
priv->one_direct_scan = 1;
priv->direct_ssid_len = (u8)
} else
priv->one_direct_scan = 0;
- rc = iwl4965_scan_initiate(priv);
+ rc = iwl_scan_initiate(priv);
IWL_DEBUG_MAC80211("leave\n");
return rc;
}
+static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
+ struct ieee80211_key_conf *keyconf, const u8 *addr,
+ u32 iv32, u16 *phase1key)
+{
+ struct iwl_priv *priv = hw->priv;
+ u8 sta_id = IWL_INVALID_STATION;
+ unsigned long flags;
+ __le16 key_flags = 0;
+ int i;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ sta_id = iwl_find_station(priv, addr);
+ if (sta_id == IWL_INVALID_STATION) {
+ IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
+ print_mac(mac, addr));
+ return;
+ }
+
+ iwl_scan_cancel_timeout(priv, 100);
+
+ key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
+ key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+ key_flags &= ~STA_KEY_FLG_INVALID;
+
+ if (sta_id == priv->hw_params.bcast_sta_id)
+ key_flags |= STA_KEY_MULTICAST_MSK;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ priv->stations[sta_id].sta.key.key_flags = key_flags;
+ priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
+
+ for (i = 0; i < 5; i++)
+ priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
+ cpu_to_le16(phase1key[i]);
+
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+ iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ IWL_DEBUG_MAC80211("leave\n");
+}
+
static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
const u8 *local_addr, const u8 *addr,
struct ieee80211_key_conf *key)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
DECLARE_MAC_BUF(mac);
- int rc = 0;
- u8 sta_id;
+ int ret = 0;
+ u8 sta_id = IWL_INVALID_STATION;
+ u8 is_default_wep_key = 0;
IWL_DEBUG_MAC80211("enter\n");
- if (!iwl4965_param_hwcrypto) {
+ if (priv->hw_params.sw_crypto) {
IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
return -EOPNOTSUPP;
}
/* only support pairwise keys */
return -EOPNOTSUPP;
- sta_id = iwl4965_hw_find_station(priv, addr);
+ sta_id = iwl_find_station(priv, addr);
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
print_mac(mac, addr));
return -EINVAL;
+
}
mutex_lock(&priv->mutex);
+ iwl_scan_cancel_timeout(priv, 100);
+ mutex_unlock(&priv->mutex);
- iwl4965_scan_cancel_timeout(priv, 100);
+ /* If we are getting WEP group key and we didn't receive any key mapping
+ * so far, we are in legacy wep mode (group key only), otherwise we are
+ * in 1X mode.
+ * In legacy wep mode, we use another host command to the uCode */
+ if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id &&
+ priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+ if (cmd == SET_KEY)
+ is_default_wep_key = !priv->key_mapping_key;
+ else
+ is_default_wep_key =
+ (key->hw_key_idx == HW_KEY_DEFAULT);
+ }
switch (cmd) {
- case SET_KEY:
- rc = iwl4965_update_sta_key_info(priv, key, sta_id);
- if (!rc) {
- iwl4965_set_rxon_hwcrypto(priv, 1);
- iwl4965_commit_rxon(priv);
- key->hw_key_idx = sta_id;
- IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
- key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
- }
+ case SET_KEY:
+ if (is_default_wep_key)
+ ret = iwl_set_default_wep_key(priv, key);
+ else
+ ret = iwl_set_dynamic_key(priv, key, sta_id);
+
+ IWL_DEBUG_MAC80211("enable hwcrypto key\n");
break;
case DISABLE_KEY:
- rc = iwl4965_clear_sta_key_info(priv, sta_id);
- if (!rc) {
- iwl4965_set_rxon_hwcrypto(priv, 0);
- iwl4965_commit_rxon(priv);
- IWL_DEBUG_MAC80211("disable hwcrypto key\n");
- }
+ if (is_default_wep_key)
+ ret = iwl_remove_default_wep_key(priv, key);
+ else
+ ret = iwl_remove_dynamic_key(priv, key, sta_id);
+
+ IWL_DEBUG_MAC80211("disable hwcrypto key\n");
break;
default:
- rc = -EINVAL;
+ ret = -EINVAL;
}
IWL_DEBUG_MAC80211("leave\n");
- mutex_unlock(&priv->mutex);
- return rc;
+ return ret;
}
-static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, int queue,
+static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *params)
{
- struct iwl4965_priv *priv = hw->priv;
-#ifdef CONFIG_IWL4965_QOS
+ struct iwl_priv *priv = hw->priv;
unsigned long flags;
int q;
-#endif /* CONFIG_IWL4965_QOS */
IWL_DEBUG_MAC80211("enter\n");
- if (!iwl4965_is_ready_rf(priv)) {
+ if (!iwl_is_ready_rf(priv)) {
IWL_DEBUG_MAC80211("leave - RF not ready\n");
return -EIO;
}
return 0;
}
-#ifdef CONFIG_IWL4965_QOS
if (!priv->qos_data.qos_enable) {
priv->qos_data.qos_active = 0;
IWL_DEBUG_MAC80211("leave - qos not enabled\n");
priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
priv->qos_data.def_qos_parm.ac[q].edca_txop =
- cpu_to_le16((params->burst_time * 100));
+ cpu_to_le16((params->txop * 32));
priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
priv->qos_data.qos_active = 1;
mutex_lock(&priv->mutex);
if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
iwl4965_activate_qos(priv, 1);
- else if (priv->assoc_id && iwl4965_is_associated(priv))
+ else if (priv->assoc_id && iwl_is_associated(priv))
iwl4965_activate_qos(priv, 0);
mutex_unlock(&priv->mutex);
-#endif /*CONFIG_IWL4965_QOS */
-
IWL_DEBUG_MAC80211("leave\n");
return 0;
}
static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw,
struct ieee80211_tx_queue_stats *stats)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
int i, avail;
- struct iwl4965_tx_queue *txq;
- struct iwl4965_queue *q;
+ struct iwl_tx_queue *txq;
+ struct iwl_queue *q;
unsigned long flags;
IWL_DEBUG_MAC80211("enter\n");
- if (!iwl4965_is_ready_rf(priv)) {
+ if (!iwl_is_ready_rf(priv)) {
IWL_DEBUG_MAC80211("leave - RF not ready\n");
return -EIO;
}
for (i = 0; i < AC_NUM; i++) {
txq = &priv->txq[i];
q = &txq->q;
- avail = iwl4965_queue_space(q);
+ avail = iwl_queue_space(q);
- stats->data[i].len = q->n_window - avail;
- stats->data[i].limit = q->n_window - q->high_mark;
- stats->data[i].count = q->n_window;
+ stats[i].len = q->n_window - avail;
+ stats[i].limit = q->n_window - q->high_mark;
+ stats[i].count = q->n_window;
}
spin_unlock_irqrestore(&priv->lock, flags);
static int iwl4965_mac_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats)
{
- IWL_DEBUG_MAC80211("enter\n");
- IWL_DEBUG_MAC80211("leave\n");
-
- return 0;
-}
+ struct iwl_priv *priv = hw->priv;
-static u64 iwl4965_mac_get_tsf(struct ieee80211_hw *hw)
-{
+ priv = hw->priv;
IWL_DEBUG_MAC80211("enter\n");
IWL_DEBUG_MAC80211("leave\n");
static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
{
- struct iwl4965_priv *priv = hw->priv;
+ struct iwl_priv *priv = hw->priv;
unsigned long flags;
mutex_lock(&priv->mutex);
IWL_DEBUG_MAC80211("enter\n");
- priv->lq_mngr.lq_ready = 0;
-#ifdef CONFIG_IWL4965_HT
spin_lock_irqsave(&priv->lock, flags);
memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
spin_unlock_irqrestore(&priv->lock, flags);
-#ifdef CONFIG_IWL4965_HT_AGG
-/* if (priv->lq_mngr.agg_ctrl.granted_ba)
- iwl4965_turn_off_agg(priv, TID_ALL_SPECIFIED);*/
-
- memset(&(priv->lq_mngr.agg_ctrl), 0, sizeof(struct iwl4965_agg_control));
- priv->lq_mngr.agg_ctrl.tid_traffic_load_threshold = 10;
- priv->lq_mngr.agg_ctrl.ba_timeout = 5000;
- priv->lq_mngr.agg_ctrl.auto_agg = 1;
-
- if (priv->lq_mngr.agg_ctrl.auto_agg)
- priv->lq_mngr.agg_ctrl.requested_ba = TID_ALL_ENABLED;
-#endif /*CONFIG_IWL4965_HT_AGG */
-#endif /* CONFIG_IWL4965_HT */
-
-#ifdef CONFIG_IWL4965_QOS
- iwl4965_reset_qos(priv);
-#endif
+
+ iwl_reset_qos(priv);
cancel_delayed_work(&priv->post_associate);
spin_lock_irqsave(&priv->lock, flags);
priv->assoc_id = 0;
priv->assoc_capability = 0;
- priv->call_post_assoc_from_beacon = 0;
priv->assoc_station_added = 0;
/* new association get rid of ibss beacon skb */
priv->ibss_beacon = NULL;
priv->beacon_int = priv->hw->conf.beacon_int;
- priv->timestamp1 = 0;
- priv->timestamp0 = 0;
+ priv->timestamp = 0;
if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
priv->beacon_int = 0;
spin_unlock_irqrestore(&priv->lock, flags);
- if (!iwl4965_is_ready_rf(priv)) {
+ if (!iwl_is_ready_rf(priv)) {
IWL_DEBUG_MAC80211("leave - not ready\n");
mutex_unlock(&priv->mutex);
return;
* clear RXON_FILTER_ASSOC_MSK bit
*/
if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
- iwl4965_scan_cancel_timeout(priv, 100);
+ iwl_scan_cancel_timeout(priv, 100);
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwl4965_commit_rxon(priv);
}
+ iwl_power_update_mode(priv, 0);
+
/* Per mac80211.h: This is only used in IBSS mode... */
if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
return;
}
- priv->only_active_channel = 0;
-
- iwl4965_set_rate(priv);
-
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211("leave\n");
-}
-
-static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *control)
-{
- struct iwl4965_priv *priv = hw->priv;
- unsigned long flags;
-
- mutex_lock(&priv->mutex);
- IWL_DEBUG_MAC80211("enter\n");
-
- if (!iwl4965_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211("leave - RF not ready\n");
- mutex_unlock(&priv->mutex);
- return -EIO;
- }
-
- if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
- IWL_DEBUG_MAC80211("leave - not IBSS\n");
- mutex_unlock(&priv->mutex);
- return -EIO;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- priv->ibss_beacon = skb;
-
- priv->assoc_id = 0;
-
- IWL_DEBUG_MAC80211("leave\n");
- spin_unlock_irqrestore(&priv->lock, flags);
-
-#ifdef CONFIG_IWL4965_QOS
- iwl4965_reset_qos(priv);
-#endif
-
- queue_work(priv->workqueue, &priv->post_associate.work);
-
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-#ifdef CONFIG_IWL4965_HT
-
-static void iwl4965_ht_info_fill(struct ieee80211_conf *conf,
- struct iwl4965_priv *priv)
-{
- struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
- struct ieee80211_ht_info *ht_conf = &conf->ht_conf;
- struct ieee80211_ht_bss_info *ht_bss_conf = &conf->ht_bss_conf;
-
- IWL_DEBUG_MAC80211("enter: \n");
-
- if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) {
- iwl_conf->is_ht = 0;
- return;
- }
-
- iwl_conf->is_ht = 1;
- priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
-
- if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
- iwl_conf->sgf |= 0x1;
- if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
- iwl_conf->sgf |= 0x2;
-
- iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
- iwl_conf->max_amsdu_size =
- !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
- iwl_conf->supported_chan_width =
- !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
- iwl_conf->tx_mimo_ps_mode =
- (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
- memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
+ iwl4965_set_rate(priv);
- iwl_conf->control_channel = ht_bss_conf->primary_channel;
- iwl_conf->extension_chan_offset =
- ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
- iwl_conf->tx_chan_width =
- !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
- iwl_conf->ht_protection =
- ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
- iwl_conf->non_GF_STA_present =
- !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
+ mutex_unlock(&priv->mutex);
- IWL_DEBUG_MAC80211("control channel %d\n",
- iwl_conf->control_channel);
IWL_DEBUG_MAC80211("leave\n");
}
-static int iwl4965_mac_conf_ht(struct ieee80211_hw *hw,
- struct ieee80211_conf *conf)
+static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
{
- struct iwl4965_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter: \n");
+ struct iwl_priv *priv = hw->priv;
+ unsigned long flags;
+ __le64 timestamp;
- iwl4965_ht_info_fill(conf, priv);
- iwl4965_set_rxon_chain(priv);
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter\n");
- if (priv && priv->assoc_id &&
- (priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
- unsigned long flags;
+ if (!iwl_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ mutex_unlock(&priv->mutex);
+ return -EIO;
+ }
- spin_lock_irqsave(&priv->lock, flags);
- if (priv->beacon_int)
- queue_work(priv->workqueue, &priv->post_associate.work);
- else
- priv->call_post_assoc_from_beacon = 1;
- spin_unlock_irqrestore(&priv->lock, flags);
+ if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+ IWL_DEBUG_MAC80211("leave - not IBSS\n");
+ mutex_unlock(&priv->mutex);
+ return -EIO;
}
- IWL_DEBUG_MAC80211("leave:\n");
- return 0;
-}
+ spin_lock_irqsave(&priv->lock, flags);
-static void iwl4965_set_ht_capab(struct ieee80211_hw *hw,
- struct ieee80211_ht_cap *ht_cap,
- u8 use_current_config)
-{
- struct ieee80211_conf *conf = &hw->conf;
- struct ieee80211_hw_mode *mode = conf->mode;
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
- if (use_current_config) {
- ht_cap->cap_info = cpu_to_le16(conf->ht_conf.cap);
- memcpy(ht_cap->supp_mcs_set,
- conf->ht_conf.supp_mcs_set, 16);
- } else {
- ht_cap->cap_info = cpu_to_le16(mode->ht_info.cap);
- memcpy(ht_cap->supp_mcs_set,
- mode->ht_info.supp_mcs_set, 16);
- }
- ht_cap->ampdu_params_info =
- (mode->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) |
- ((mode->ht_info.ampdu_density << 2) &
- IEEE80211_HT_CAP_AMPDU_DENSITY);
-}
+ priv->ibss_beacon = skb;
+
+ priv->assoc_id = 0;
+ timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
+ priv->timestamp = le64_to_cpu(timestamp) + (priv->beacon_int * 1000);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ spin_unlock_irqrestore(&priv->lock, flags);
-#endif /*CONFIG_IWL4965_HT*/
+ iwl_reset_qos(priv);
+
+ iwl4965_post_associate(priv);
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
/*****************************************************************************
*
*
*****************************************************************************/
-#ifdef CONFIG_IWL4965_DEBUG
+#ifdef CONFIG_IWLWIFI_DEBUG
/*
* The following adds a new attribute to the sysfs representation
* See the level definitions in iwl for details.
*/
-static ssize_t show_debug_level(struct device_driver *d, char *buf)
+static ssize_t show_debug_level(struct device *d,
+ struct device_attribute *attr, char *buf)
{
- return sprintf(buf, "0x%08X\n", iwl4965_debug_level);
+ struct iwl_priv *priv = d->driver_data;
+
+ return sprintf(buf, "0x%08X\n", priv->debug_level);
}
-static ssize_t store_debug_level(struct device_driver *d,
+static ssize_t store_debug_level(struct device *d,
+ struct device_attribute *attr,
const char *buf, size_t count)
{
+ struct iwl_priv *priv = d->driver_data;
char *p = (char *)buf;
u32 val;
printk(KERN_INFO DRV_NAME
": %s is not in hex or decimal form.\n", buf);
else
- iwl4965_debug_level = val;
+ priv->debug_level = val;
return strnlen(buf, count);
}
-static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
- show_debug_level, store_debug_level);
+static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
+ show_debug_level, store_debug_level);
-#endif /* CONFIG_IWL4965_DEBUG */
-static ssize_t show_rf_kill(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- /*
- * 0 - RF kill not enabled
- * 1 - SW based RF kill active (sysfs)
- * 2 - HW based RF kill active
- * 3 - Both HW and SW based RF kill active
- */
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
- int val = (test_bit(STATUS_RF_KILL_SW, &priv->status) ? 0x1 : 0x0) |
- (test_bit(STATUS_RF_KILL_HW, &priv->status) ? 0x2 : 0x0);
+#endif /* CONFIG_IWLWIFI_DEBUG */
- return sprintf(buf, "%i\n", val);
-}
-static ssize_t store_rf_kill(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t show_version(struct device *d,
+ struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ struct iwl_priv *priv = d->driver_data;
+ struct iwl_alive_resp *palive = &priv->card_alive;
+ ssize_t pos = 0;
+ u16 eeprom_ver;
+
+ if (palive->is_valid)
+ pos += sprintf(buf + pos,
+ "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
+ "fw type: 0x%01X 0x%01X\n",
+ palive->ucode_major, palive->ucode_minor,
+ palive->sw_rev[0], palive->sw_rev[1],
+ palive->ver_type, palive->ver_subtype);
+ else
+ pos += sprintf(buf + pos, "fw not loaded\n");
- mutex_lock(&priv->mutex);
- iwl4965_radio_kill_sw(priv, buf[0] == '1');
- mutex_unlock(&priv->mutex);
+ if (priv->eeprom) {
+ eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
+ pos += sprintf(buf + pos, "EEPROM version: 0x%x\n",
+ eeprom_ver);
+ } else {
+ pos += sprintf(buf + pos, "EEPROM not initialzed\n");
+ }
- return count;
+ return pos;
}
-static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
+static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL);
static ssize_t show_temperature(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- if (!iwl4965_is_alive(priv))
+ if (!iwl_is_alive(priv))
return -EAGAIN;
- return sprintf(buf, "%d\n", iwl4965_hw_get_temperature(priv));
+ return sprintf(buf, "%d\n", priv->temperature);
}
static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
struct device_attribute *attr,
char *buf)
{
- struct iwl4965_priv *priv = d->driver_data;
+ struct iwl_priv *priv = d->driver_data;
return iwl4965_fill_rs_info(priv->hw, buf, IWL_AP_ID);
}
static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
static ssize_t show_tx_power(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
- return sprintf(buf, "%d\n", priv->user_txpower_limit);
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+ return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
}
static ssize_t store_tx_power(struct device *d,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
char *p = (char *)buf;
u32 val;
printk(KERN_INFO DRV_NAME
": %s is not in decimal form.\n", buf);
else
- iwl4965_hw_reg_set_txpower(priv, val);
+ iwl_set_tx_power(priv, val, false);
return count;
}
static ssize_t show_flags(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
}
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
u32 flags = simple_strtoul(buf, NULL, 0);
mutex_lock(&priv->mutex);
if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
/* Cancel any currently running scans... */
- if (iwl4965_scan_cancel_timeout(priv, 100))
+ if (iwl_scan_cancel_timeout(priv, 100))
IWL_WARNING("Could not cancel scan.\n");
else {
IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
static ssize_t show_filter_flags(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
return sprintf(buf, "0x%04X\n",
le32_to_cpu(priv->active_rxon.filter_flags));
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
u32 filter_flags = simple_strtoul(buf, NULL, 0);
mutex_lock(&priv->mutex);
if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
/* Cancel any currently running scans... */
- if (iwl4965_scan_cancel_timeout(priv, 100))
+ if (iwl_scan_cancel_timeout(priv, 100))
IWL_WARNING("Could not cancel scan.\n");
else {
IWL_DEBUG_INFO("Committing rxon.filter_flags = "
static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
store_filter_flags);
-static ssize_t show_tune(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
-
- return sprintf(buf, "0x%04X\n",
- (priv->phymode << 8) |
- le16_to_cpu(priv->active_rxon.channel));
-}
-
-static void iwl4965_set_flags_for_phymode(struct iwl4965_priv *priv, u8 phymode);
-
-static ssize_t store_tune(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
- char *p = (char *)buf;
- u16 tune = simple_strtoul(p, &p, 0);
- u8 phymode = (tune >> 8) & 0xff;
- u16 channel = tune & 0xff;
-
- IWL_DEBUG_INFO("Tune request to:%d channel:%d\n", phymode, channel);
-
- mutex_lock(&priv->mutex);
- if ((le16_to_cpu(priv->staging_rxon.channel) != channel) ||
- (priv->phymode != phymode)) {
- const struct iwl4965_channel_info *ch_info;
-
- ch_info = iwl4965_get_channel_info(priv, phymode, channel);
- if (!ch_info) {
- IWL_WARNING("Requested invalid phymode/channel "
- "combination: %d %d\n", phymode, channel);
- mutex_unlock(&priv->mutex);
- return -EINVAL;
- }
-
- /* Cancel any currently running scans... */
- if (iwl4965_scan_cancel_timeout(priv, 100))
- IWL_WARNING("Could not cancel scan.\n");
- else {
- IWL_DEBUG_INFO("Committing phymode and "
- "rxon.channel = %d %d\n",
- phymode, channel);
-
- iwl4965_set_rxon_channel(priv, phymode, channel);
- iwl4965_set_flags_for_phymode(priv, phymode);
-
- iwl4965_set_rate(priv);
- iwl4965_commit_rxon(priv);
- }
- }
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(tune, S_IWUSR | S_IRUGO, show_tune, store_tune);
-
#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
static ssize_t show_measurement(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = dev_get_drvdata(d);
+ struct iwl_priv *priv = dev_get_drvdata(d);
struct iwl4965_spectrum_notification measure_report;
u32 size = sizeof(measure_report), len = 0, ofs = 0;
u8 *data = (u8 *) & measure_report;
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct iwl4965_priv *priv = dev_get_drvdata(d);
+ struct iwl_priv *priv = dev_get_drvdata(d);
struct ieee80211_measurement_params params = {
.channel = le16_to_cpu(priv->active_rxon.channel),
.start_time = cpu_to_le64(priv->last_tsf),
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct iwl4965_priv *priv = dev_get_drvdata(d);
+ struct iwl_priv *priv = dev_get_drvdata(d);
priv->retry_rate = simple_strtoul(buf, NULL, 0);
if (priv->retry_rate <= 0)
static ssize_t show_retry_rate(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = dev_get_drvdata(d);
+ struct iwl_priv *priv = dev_get_drvdata(d);
return sprintf(buf, "%d", priv->retry_rate);
}
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct iwl4965_priv *priv = dev_get_drvdata(d);
+ struct iwl_priv *priv = dev_get_drvdata(d);
int rc;
int mode;
mode = simple_strtoul(buf, NULL, 0);
mutex_lock(&priv->mutex);
- if (!iwl4965_is_ready(priv)) {
+ if (!iwl_is_ready(priv)) {
rc = -EAGAIN;
goto out;
}
- if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC))
- mode = IWL_POWER_AC;
- else
- mode |= IWL_POWER_ENABLED;
-
- if (mode != priv->power_mode) {
- rc = iwl4965_send_power_mode(priv, IWL_POWER_LEVEL(mode));
- if (rc) {
- IWL_DEBUG_MAC80211("failed setting power mode.\n");
- goto out;
- }
- priv->power_mode = mode;
+ rc = iwl_power_set_user_mode(priv, mode);
+ if (rc) {
+ IWL_DEBUG_MAC80211("failed setting power mode.\n");
+ goto out;
}
-
rc = count;
out:
static ssize_t show_power_level(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = dev_get_drvdata(d);
- int level = IWL_POWER_LEVEL(priv->power_mode);
+ struct iwl_priv *priv = dev_get_drvdata(d);
+ int level = priv->power_data.power_mode;
char *p = buf;
p += sprintf(p, "%d ", level);
timeout_duration[level - 1] / 1000,
period_duration[level - 1] / 1000);
}
-
+/*
if (!(priv->power_mode & IWL_POWER_ENABLED))
p += sprintf(p, " OFF\n");
else
p += sprintf(p, " \n");
-
+*/
+ p += sprintf(p, " \n");
return (p - buf + 1);
-
}
static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
static ssize_t show_channels(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = dev_get_drvdata(d);
- int len = 0, i;
+
+ struct iwl_priv *priv = dev_get_drvdata(d);
struct ieee80211_channel *channels = NULL;
- const struct ieee80211_hw_mode *hw_mode = NULL;
+ const struct ieee80211_supported_band *supp_band = NULL;
+ int len = 0, i;
int count = 0;
- if (!iwl4965_is_ready(priv))
+ if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
return -EAGAIN;
- hw_mode = iwl4965_get_hw_mode(priv, MODE_IEEE80211G);
- if (!hw_mode)
- hw_mode = iwl4965_get_hw_mode(priv, MODE_IEEE80211B);
- if (hw_mode) {
- channels = hw_mode->channels;
- count = hw_mode->num_channels;
- }
+ supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
+ channels = supp_band->channels;
+ count = supp_band->n_channels;
- len +=
- sprintf(&buf[len],
- "Displaying %d channels in 2.4GHz band "
- "(802.11bg):\n", count);
+ len += sprintf(&buf[len],
+ "Displaying %d channels in 2.4GHz band "
+ "(802.11bg):\n", count);
for (i = 0; i < count; i++)
len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
- channels[i].chan,
- channels[i].power_level,
- channels[i].
- flag & IEEE80211_CHAN_W_RADAR_DETECT ?
- " (IEEE 802.11h required)" : "",
- (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
- || (channels[i].
- flag &
- IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
- ", IBSS",
- channels[i].
- flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
- "active/passive" : "passive only");
-
- hw_mode = iwl4965_get_hw_mode(priv, MODE_IEEE80211A);
- if (hw_mode) {
- channels = hw_mode->channels;
- count = hw_mode->num_channels;
- } else {
- channels = NULL;
- count = 0;
- }
+ ieee80211_frequency_to_channel(
+ channels[i].center_freq),
+ channels[i].max_power,
+ channels[i].flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+ || (channels[i].flags &
+ IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].flags &
+ IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
+
+ supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
+ channels = supp_band->channels;
+ count = supp_band->n_channels;
len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band "
- "(802.11a):\n", count);
+ "(802.11a):\n", count);
for (i = 0; i < count; i++)
len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
- channels[i].chan,
- channels[i].power_level,
- channels[i].
- flag & IEEE80211_CHAN_W_RADAR_DETECT ?
- " (IEEE 802.11h required)" : "",
- (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
- || (channels[i].
- flag &
- IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
- ", IBSS",
- channels[i].
- flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
- "active/passive" : "passive only");
+ ieee80211_frequency_to_channel(
+ channels[i].center_freq),
+ channels[i].max_power,
+ channels[i].flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+ || (channels[i].flags &
+ IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].flags &
+ IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
return len;
}
static ssize_t show_statistics(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = dev_get_drvdata(d);
- u32 size = sizeof(struct iwl4965_notif_statistics);
+ struct iwl_priv *priv = dev_get_drvdata(d);
+ u32 size = sizeof(struct iwl_notif_statistics);
u32 len = 0, ofs = 0;
u8 *data = (u8 *) & priv->statistics;
int rc = 0;
- if (!iwl4965_is_alive(priv))
+ if (!iwl_is_alive(priv))
return -EAGAIN;
mutex_lock(&priv->mutex);
- rc = iwl4965_send_statistics_request(priv);
+ rc = iwl_send_statistics_request(priv, 0);
mutex_unlock(&priv->mutex);
if (rc) {
static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
-static ssize_t show_antenna(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl4965_priv *priv = dev_get_drvdata(d);
-
- if (!iwl4965_is_alive(priv))
- return -EAGAIN;
-
- return sprintf(buf, "%d\n", priv->antenna);
-}
-
-static ssize_t store_antenna(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int ant;
- struct iwl4965_priv *priv = dev_get_drvdata(d);
-
- if (count == 0)
- return 0;
-
- if (sscanf(buf, "%1i", &ant) != 1) {
- IWL_DEBUG_INFO("not in hex or decimal form.\n");
- return count;
- }
-
- if ((ant >= 0) && (ant <= 2)) {
- IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant);
- priv->antenna = (enum iwl4965_antenna)ant;
- } else
- IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant);
-
-
- return count;
-}
-
-static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
-
static ssize_t show_status(struct device *d,
struct device_attribute *attr, char *buf)
{
- struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
- if (!iwl4965_is_alive(priv))
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+ if (!iwl_is_alive(priv))
return -EAGAIN;
return sprintf(buf, "0x%08x\n", (int)priv->status);
}
static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
-static ssize_t dump_error_log(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
-
- if (p[0] == '1')
- iwl4965_dump_nic_error_log((struct iwl4965_priv *)d->driver_data);
-
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
-
-static ssize_t dump_event_log(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
-
- if (p[0] == '1')
- iwl4965_dump_nic_event_log((struct iwl4965_priv *)d->driver_data);
-
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
-
/*****************************************************************************
*
* driver setup and teardown
*
*****************************************************************************/
-static void iwl4965_setup_deferred_work(struct iwl4965_priv *priv)
+static void iwl_setup_deferred_work(struct iwl_priv *priv)
{
priv->workqueue = create_workqueue(DRV_NAME);
INIT_WORK(&priv->up, iwl4965_bg_up);
INIT_WORK(&priv->restart, iwl4965_bg_restart);
INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish);
- INIT_WORK(&priv->scan_completed, iwl4965_bg_scan_completed);
- INIT_WORK(&priv->request_scan, iwl4965_bg_request_scan);
- INIT_WORK(&priv->abort_scan, iwl4965_bg_abort_scan);
INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill);
INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update);
+ INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor);
+ INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate);
- INIT_DELAYED_WORK(&priv->init_alive_start, iwl4965_bg_init_alive_start);
- INIT_DELAYED_WORK(&priv->alive_start, iwl4965_bg_alive_start);
- INIT_DELAYED_WORK(&priv->scan_check, iwl4965_bg_scan_check);
+ INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
+ INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
- iwl4965_hw_setup_deferred_work(priv);
+ /* FIXME : remove when resolved PENDING */
+ INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
+ iwl_setup_scan_deferred_work(priv);
+
+ if (priv->cfg->ops->lib->setup_deferred_work)
+ priv->cfg->ops->lib->setup_deferred_work(priv);
+
+ init_timer(&priv->statistics_periodic);
+ priv->statistics_periodic.data = (unsigned long)priv;
+ priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
iwl4965_irq_tasklet, (unsigned long)priv);
}
-static void iwl4965_cancel_deferred_work(struct iwl4965_priv *priv)
+static void iwl_cancel_deferred_work(struct iwl_priv *priv)
{
- iwl4965_hw_cancel_deferred_work(priv);
+ if (priv->cfg->ops->lib->cancel_deferred_work)
+ priv->cfg->ops->lib->cancel_deferred_work(priv);
cancel_delayed_work_sync(&priv->init_alive_start);
cancel_delayed_work(&priv->scan_check);
cancel_delayed_work(&priv->alive_start);
cancel_delayed_work(&priv->post_associate);
cancel_work_sync(&priv->beacon_update);
+ del_timer_sync(&priv->statistics_periodic);
}
static struct attribute *iwl4965_sysfs_entries[] = {
- &dev_attr_antenna.attr,
&dev_attr_channels.attr,
- &dev_attr_dump_errors.attr,
- &dev_attr_dump_events.attr,
&dev_attr_flags.attr,
&dev_attr_filter_flags.attr,
#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
#endif
&dev_attr_power_level.attr,
&dev_attr_retry_rate.attr,
- &dev_attr_rf_kill.attr,
&dev_attr_rs_window.attr,
&dev_attr_statistics.attr,
&dev_attr_status.attr,
&dev_attr_temperature.attr,
- &dev_attr_tune.attr,
&dev_attr_tx_power.attr,
+#ifdef CONFIG_IWLWIFI_DEBUG
+ &dev_attr_debug_level.attr,
+#endif
+ &dev_attr_version.attr,
NULL
};
.config_interface = iwl4965_mac_config_interface,
.configure_filter = iwl4965_configure_filter,
.set_key = iwl4965_mac_set_key,
+ .update_tkip_key = iwl4965_mac_update_tkip_key,
.get_stats = iwl4965_mac_get_stats,
.get_tx_stats = iwl4965_mac_get_tx_stats,
.conf_tx = iwl4965_mac_conf_tx,
- .get_tsf = iwl4965_mac_get_tsf,
.reset_tsf = iwl4965_mac_reset_tsf,
.beacon_update = iwl4965_mac_beacon_update,
.bss_info_changed = iwl4965_bss_info_changed,
-#ifdef CONFIG_IWL4965_HT
- .conf_ht = iwl4965_mac_conf_ht,
.ampdu_action = iwl4965_mac_ampdu_action,
-#ifdef CONFIG_IWL4965_HT_AGG
- .ht_tx_agg_start = iwl4965_mac_ht_tx_agg_start,
- .ht_tx_agg_stop = iwl4965_mac_ht_tx_agg_stop,
-#endif /* CONFIG_IWL4965_HT_AGG */
-#endif /* CONFIG_IWL4965_HT */
.hw_scan = iwl4965_mac_hw_scan
};
static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
int err = 0;
- struct iwl4965_priv *priv;
+ struct iwl_priv *priv;
struct ieee80211_hw *hw;
- int i;
+ struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
+ unsigned long flags;
DECLARE_MAC_BUF(mac);
+ /************************
+ * 1. Allocating HW data
+ ************************/
+
/* Disabling hardware scan means that mac80211 will perform scans
* "the hard way", rather than using device's scan. */
- if (iwl4965_param_disable_hw_scan) {
- IWL_DEBUG_INFO("Disabling hw_scan\n");
+ if (cfg->mod_params->disable_hw_scan) {
+ if (cfg->mod_params->debug & IWL_DL_INFO)
+ dev_printk(KERN_DEBUG, &(pdev->dev),
+ "Disabling hw_scan\n");
iwl4965_hw_ops.hw_scan = NULL;
}
- if ((iwl4965_param_queues_num > IWL_MAX_NUM_QUEUES) ||
- (iwl4965_param_queues_num < IWL_MIN_NUM_QUEUES)) {
- IWL_ERROR("invalid queues_num, should be between %d and %d\n",
- IWL_MIN_NUM_QUEUES, IWL_MAX_NUM_QUEUES);
- err = -EINVAL;
- goto out;
- }
-
- /* mac80211 allocates memory for this device instance, including
- * space for this driver's private structure */
- hw = ieee80211_alloc_hw(sizeof(struct iwl4965_priv), &iwl4965_hw_ops);
- if (hw == NULL) {
- IWL_ERROR("Can not allocate network device\n");
+ hw = iwl_alloc_all(cfg, &iwl4965_hw_ops);
+ if (!hw) {
err = -ENOMEM;
goto out;
}
- SET_IEEE80211_DEV(hw, &pdev->dev);
+ priv = hw->priv;
+ /* At this point both hw and priv are allocated. */
- hw->rate_control_algorithm = "iwl-4965-rs";
+ SET_IEEE80211_DEV(hw, &pdev->dev);
IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
- priv = hw->priv;
- priv->hw = hw;
-
+ priv->cfg = cfg;
priv->pci_dev = pdev;
- priv->antenna = (enum iwl4965_antenna)iwl4965_param_antenna;
-#ifdef CONFIG_IWL4965_DEBUG
- iwl4965_debug_level = iwl4965_param_debug;
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+ priv->debug_level = priv->cfg->mod_params->debug;
atomic_set(&priv->restrict_refcnt, 0);
#endif
- priv->retry_rate = 1;
- priv->ibss_beacon = NULL;
-
- /* Tell mac80211 and its clients (e.g. Wireless Extensions)
- * the range of signal quality values that we'll provide.
- * Negative values for level/noise indicate that we'll provide dBm.
- * For WE, at least, non-0 values here *enable* display of values
- * in app (iwconfig). */
- hw->max_rssi = -20; /* signal level, negative indicates dBm */
- hw->max_noise = -20; /* noise level, negative indicates dBm */
- hw->max_signal = 100; /* link quality indication (%) */
-
- /* Tell mac80211 our Tx characteristics */
- hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
-
- /* Default value; 4 EDCA QOS priorities */
- hw->queues = 4;
-#ifdef CONFIG_IWL4965_HT
-#ifdef CONFIG_IWL4965_HT_AGG
- /* Enhanced value; more queues, to support 11n aggregation */
- hw->queues = 16;
-#endif /* CONFIG_IWL4965_HT_AGG */
-#endif /* CONFIG_IWL4965_HT */
-
- spin_lock_init(&priv->lock);
- spin_lock_init(&priv->power_data.lock);
- spin_lock_init(&priv->sta_lock);
- spin_lock_init(&priv->hcmd_lock);
- spin_lock_init(&priv->lq_mngr.lock);
-
- for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++)
- INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
-
- INIT_LIST_HEAD(&priv->free_frames);
-
- mutex_init(&priv->mutex);
+ /**************************
+ * 2. Initializing PCI bus
+ **************************/
if (pci_enable_device(pdev)) {
err = -ENODEV;
goto out_ieee80211_free_hw;
pci_set_master(pdev);
- /* Clear the driver's (not device's) station table */
- iwl4965_clear_stations_table(priv);
-
- priv->data_retry_limit = -1;
- priv->ieee_channels = NULL;
- priv->ieee_rates = NULL;
- priv->phymode = -1;
-
- err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
if (!err)
- err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
if (err) {
- printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
- goto out_pci_disable_device;
+ err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (!err)
+ err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ /* both attempts failed: */
+ if (err) {
+ printk(KERN_WARNING "%s: No suitable DMA available.\n",
+ DRV_NAME);
+ goto out_pci_disable_device;
+ }
}
- pci_set_drvdata(pdev, priv);
err = pci_request_regions(pdev, DRV_NAME);
if (err)
goto out_pci_disable_device;
+ pci_set_drvdata(pdev, priv);
+
/* We disable the RETRY_TIMEOUT register (0x41) to keep
* PCI Tx retries from interfering with C3 CPU state */
pci_write_config_byte(pdev, 0x41, 0x00);
+ /***********************
+ * 3. Read REV register
+ ***********************/
priv->hw_base = pci_iomap(pdev, 0, 0);
if (!priv->hw_base) {
err = -ENODEV;
}
IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
- (unsigned long long) pci_resource_len(pdev, 0));
+ (unsigned long long) pci_resource_len(pdev, 0));
IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
- /* Initialize module parameter values here */
-
- /* Disable radio (SW RF KILL) via parameter when loading driver */
- if (iwl4965_param_disable) {
- set_bit(STATUS_RF_KILL_SW, &priv->status);
- IWL_DEBUG_INFO("Radio disabled.\n");
- }
-
- priv->iw_mode = IEEE80211_IF_TYPE_STA;
-
- priv->ps_mode = 0;
- priv->use_ant_b_for_management_frame = 1; /* start with ant B */
- priv->valid_antenna = 0x7; /* assume all 3 connected */
- priv->ps_mode = IWL_MIMO_PS_NONE;
-
- /* Choose which receivers/antennas to use */
- iwl4965_set_rxon_chain(priv);
-
+ iwl_hw_detect(priv);
printk(KERN_INFO DRV_NAME
- ": Detected Intel Wireless WiFi Link 4965AGN\n");
+ ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
+ priv->cfg->name, priv->hw_rev);
- /* Device-specific setup */
- if (iwl4965_hw_set_hw_setting(priv)) {
- IWL_ERROR("failed to set hw settings\n");
+ /* amp init */
+ err = priv->cfg->ops->lib->apm_ops.init(priv);
+ if (err < 0) {
+ IWL_DEBUG_INFO("Failed to init APMG\n");
+ goto out_iounmap;
+ }
+ /*****************
+ * 4. Read EEPROM
+ *****************/
+ /* Read the EEPROM */
+ err = iwl_eeprom_init(priv);
+ if (err) {
+ IWL_ERROR("Unable to init EEPROM\n");
goto out_iounmap;
}
+ err = iwl_eeprom_check_version(priv);
+ if (err)
+ goto out_iounmap;
+
+ /* extract MAC Address */
+ iwl_eeprom_get_mac(priv, priv->mac_addr);
+ IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr));
+ SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
-#ifdef CONFIG_IWL4965_QOS
- if (iwl4965_param_qos_enable)
- priv->qos_data.qos_enable = 1;
+ /************************
+ * 5. Setup HW constants
+ ************************/
+ if (iwl_set_hw_params(priv)) {
+ IWL_ERROR("failed to set hw parameters\n");
+ goto out_free_eeprom;
+ }
- iwl4965_reset_qos(priv);
+ /*******************
+ * 6. Setup priv
+ *******************/
- priv->qos_data.qos_active = 0;
- priv->qos_data.qos_cap.val = 0;
-#endif /* CONFIG_IWL4965_QOS */
+ err = iwl_init_drv(priv);
+ if (err)
+ goto out_free_eeprom;
+ /* At this point both hw and priv are initialized. */
- iwl4965_set_rxon_channel(priv, MODE_IEEE80211G, 6);
- iwl4965_setup_deferred_work(priv);
- iwl4965_setup_rx_handlers(priv);
+ /**********************************
+ * 7. Initialize module parameters
+ **********************************/
- priv->rates_mask = IWL_RATES_MASK;
- /* If power management is turned on, default to AC mode */
- priv->power_mode = IWL_POWER_AC;
- priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
+ /* Disable radio (SW RF KILL) via parameter when loading driver */
+ if (priv->cfg->mod_params->disable) {
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ IWL_DEBUG_INFO("Radio disabled.\n");
+ }
+ /********************
+ * 8. Setup services
+ ********************/
+ spin_lock_irqsave(&priv->lock, flags);
iwl4965_disable_interrupts(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
if (err) {
IWL_ERROR("failed to create sysfs device attributes\n");
- goto out_release_irq;
+ goto out_uninit_drv;
}
- /* nic init */
- iwl4965_set_bit(priv, CSR_GIO_CHICKEN_BITS,
- CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
- iwl4965_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
- err = iwl4965_poll_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
- if (err < 0) {
- IWL_DEBUG_INFO("Failed to init the card\n");
- goto out_remove_sysfs;
- }
- /* Read the EEPROM */
- err = iwl4965_eeprom_init(priv);
- if (err) {
- IWL_ERROR("Unable to init EEPROM\n");
- goto out_remove_sysfs;
- }
- /* MAC Address location in EEPROM same for 3945/4965 */
- get_eeprom_mac(priv, priv->mac_addr);
- IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr));
- SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
+ iwl_setup_deferred_work(priv);
+ iwl_setup_rx_handlers(priv);
- err = iwl4965_init_channel_map(priv);
- if (err) {
- IWL_ERROR("initializing regulatory failed: %d\n", err);
- goto out_remove_sysfs;
- }
+ /********************
+ * 9. Conclude
+ ********************/
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
- err = iwl4965_init_geos(priv);
- if (err) {
- IWL_ERROR("initializing geos failed: %d\n", err);
- goto out_free_channel_map;
- }
- iwl4965_reset_channel_flag(priv);
+ /**********************************
+ * 10. Setup and register mac80211
+ **********************************/
- iwl4965_rate_control_register(priv->hw);
- err = ieee80211_register_hw(priv->hw);
- if (err) {
- IWL_ERROR("Failed to register network device (error %d)\n", err);
- goto out_free_geos;
- }
+ err = iwl_setup_mac(priv);
+ if (err)
+ goto out_remove_sysfs;
- priv->hw->conf.beacon_int = 100;
- priv->mac80211_registered = 1;
- pci_save_state(pdev);
- pci_disable_device(pdev);
+ err = iwl_dbgfs_register(priv, DRV_NAME);
+ if (err)
+ IWL_ERROR("failed to create debugfs files\n");
+ err = iwl_rfkill_init(priv);
+ if (err)
+ IWL_ERROR("Unable to initialize RFKILL system. "
+ "Ignoring error: %d\n", err);
+ iwl_power_initialize(priv);
return 0;
- out_free_geos:
- iwl4965_free_geos(priv);
- out_free_channel_map:
- iwl4965_free_channel_map(priv);
out_remove_sysfs:
sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
-
- out_release_irq:
- destroy_workqueue(priv->workqueue);
- priv->workqueue = NULL;
- iwl4965_unset_hw_setting(priv);
-
+ out_uninit_drv:
+ iwl_uninit_drv(priv);
+ out_free_eeprom:
+ iwl_eeprom_free(priv);
out_iounmap:
pci_iounmap(pdev, priv->hw_base);
out_pci_release_regions:
pci_release_regions(pdev);
+ pci_set_drvdata(pdev, NULL);
out_pci_disable_device:
pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
out_ieee80211_free_hw:
ieee80211_free_hw(priv->hw);
out:
static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
{
- struct iwl4965_priv *priv = pci_get_drvdata(pdev);
- struct list_head *p, *q;
- int i;
+ struct iwl_priv *priv = pci_get_drvdata(pdev);
+ unsigned long flags;
if (!priv)
return;
IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
+ iwl_dbgfs_unregister(priv);
+ sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
+
+ if (priv->mac80211_registered) {
+ ieee80211_unregister_hw(priv->hw);
+ priv->mac80211_registered = 0;
+ }
+
set_bit(STATUS_EXIT_PENDING, &priv->status);
iwl4965_down(priv);
- /* Free MAC hash list for ADHOC */
- for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) {
- list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
- list_del(p);
- kfree(list_entry(p, struct iwl4965_ibss_seq, list));
- }
- }
+ /* make sure we flush any pending irq or
+ * tasklet for the driver
+ */
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_disable_interrupts(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
- sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
+ iwl_synchronize_irq(priv);
+ iwl_rfkill_unregister(priv);
iwl4965_dealloc_ucode_pci(priv);
if (priv->rxq.bd)
- iwl4965_rx_queue_free(priv, &priv->rxq);
- iwl4965_hw_txq_ctx_free(priv);
+ iwl_rx_queue_free(priv, &priv->rxq);
+ iwl_hw_txq_ctx_free(priv);
- iwl4965_unset_hw_setting(priv);
- iwl4965_clear_stations_table(priv);
+ iwl_clear_stations_table(priv);
+ iwl_eeprom_free(priv);
- if (priv->mac80211_registered) {
- ieee80211_unregister_hw(priv->hw);
- iwl4965_rate_control_unregister(priv->hw);
- }
/*netif_stop_queue(dev); */
flush_workqueue(priv->workqueue);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
- iwl4965_free_channel_map(priv);
- iwl4965_free_geos(priv);
+ iwl_uninit_drv(priv);
if (priv->ibss_beacon)
dev_kfree_skb(priv->ibss_beacon);
static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
- struct iwl4965_priv *priv = pci_get_drvdata(pdev);
+ struct iwl_priv *priv = pci_get_drvdata(pdev);
if (priv->is_open) {
set_bit(STATUS_IN_SUSPEND, &priv->status);
static int iwl4965_pci_resume(struct pci_dev *pdev)
{
- struct iwl4965_priv *priv = pci_get_drvdata(pdev);
+ struct iwl_priv *priv = pci_get_drvdata(pdev);
pci_set_power_state(pdev, PCI_D0);
*
*****************************************************************************/
-static struct pci_driver iwl4965_driver = {
+/* Hardware specific file defines the PCI IDs table for that hardware module */
+static struct pci_device_id iwl_hw_card_ids[] = {
+ {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
+ {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
+#ifdef CONFIG_IWL5000
+ {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)},
+ {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)},
+ {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)},
+#endif /* CONFIG_IWL5000 */
+ {0}
+};
+MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
+
+static struct pci_driver iwl_driver = {
.name = DRV_NAME,
- .id_table = iwl4965_hw_card_ids,
+ .id_table = iwl_hw_card_ids,
.probe = iwl4965_pci_probe,
.remove = __devexit_p(iwl4965_pci_remove),
#ifdef CONFIG_PM
int ret;
printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
- ret = pci_register_driver(&iwl4965_driver);
+
+ ret = iwl4965_rate_control_register();
if (ret) {
- IWL_ERROR("Unable to initialize PCI module\n");
+ IWL_ERROR("Unable to register rate control algorithm: %d\n", ret);
return ret;
}
-#ifdef CONFIG_IWL4965_DEBUG
- ret = driver_create_file(&iwl4965_driver.driver, &driver_attr_debug_level);
+
+ ret = pci_register_driver(&iwl_driver);
if (ret) {
- IWL_ERROR("Unable to create driver sysfs file\n");
- pci_unregister_driver(&iwl4965_driver);
- return ret;
+ IWL_ERROR("Unable to initialize PCI module\n");
+ goto error_register;
}
-#endif
return ret;
+
+error_register:
+ iwl4965_rate_control_unregister();
+ return ret;
}
static void __exit iwl4965_exit(void)
{
-#ifdef CONFIG_IWL4965_DEBUG
- driver_remove_file(&iwl4965_driver.driver, &driver_attr_debug_level);
-#endif
- pci_unregister_driver(&iwl4965_driver);
+ pci_unregister_driver(&iwl_driver);
+ iwl4965_rate_control_unregister();
}
-module_param_named(antenna, iwl4965_param_antenna, int, 0444);
-MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
-module_param_named(disable, iwl4965_param_disable, int, 0444);
-MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
-module_param_named(hwcrypto, iwl4965_param_hwcrypto, int, 0444);
-MODULE_PARM_DESC(hwcrypto,
- "using hardware crypto engine (default 0 [software])\n");
-module_param_named(debug, iwl4965_param_debug, int, 0444);
-MODULE_PARM_DESC(debug, "debug output mask");
-module_param_named(disable_hw_scan, iwl4965_param_disable_hw_scan, int, 0444);
-MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
-
-module_param_named(queues_num, iwl4965_param_queues_num, int, 0444);
-MODULE_PARM_DESC(queues_num, "number of hw queues.");
-
-/* QoS */
-module_param_named(qos_enable, iwl4965_param_qos_enable, int, 0444);
-MODULE_PARM_DESC(qos_enable, "enable all QoS functionality");
-module_param_named(amsdu_size_8K, iwl4965_param_amsdu_size_8K, int, 0444);
-MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
-
module_exit(iwl4965_exit);
module_init(iwl4965_init);
projects / linux-2.6 / blobdiff