Supported chipsets: RT2570.
*/
-/*
- * Set enviroment defines for rt2x00.h
- */
-#define DRV_NAME "rt2500usb"
-
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
* between each attampt. When the busy bit is still set at that time,
* the access attempt is considered to have failed,
* and we will print an error.
+ * If the usb_cache_mutex is already held then the _lock variants must
+ * be used instead.
*/
-static inline void rt2500usb_register_read(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u16 *value)
{
*value = le16_to_cpu(reg);
}
-static inline void rt2500usb_register_multiread(const struct rt2x00_dev
- *rt2x00dev,
+static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
+ const unsigned int offset,
+ u16 *value)
+{
+ __le16 reg;
+ rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
+ USB_VENDOR_REQUEST_IN, offset,
+ ®, sizeof(u16), REGISTER_TIMEOUT);
+ *value = le16_to_cpu(reg);
+}
+
+static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
void *value, const u16 length)
{
value, length, timeout);
}
-static inline void rt2500usb_register_write(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u16 value)
{
®, sizeof(u16), REGISTER_TIMEOUT);
}
-static inline void rt2500usb_register_multiwrite(const struct rt2x00_dev
- *rt2x00dev,
+static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
+ const unsigned int offset,
+ u16 value)
+{
+ __le16 reg = cpu_to_le16(value);
+ rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
+ USB_VENDOR_REQUEST_OUT, offset,
+ ®, sizeof(u16), REGISTER_TIMEOUT);
+}
+
+static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
void *value, const u16 length)
{
value, length, timeout);
}
-static u16 rt2500usb_bbp_check(const struct rt2x00_dev *rt2x00dev)
+static u16 rt2500usb_bbp_check(struct rt2x00_dev *rt2x00dev)
{
u16 reg;
unsigned int i;
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2500usb_register_read(rt2x00dev, PHY_CSR8, ®);
+ rt2500usb_register_read_lock(rt2x00dev, PHY_CSR8, ®);
if (!rt2x00_get_field16(reg, PHY_CSR8_BUSY))
break;
udelay(REGISTER_BUSY_DELAY);
return reg;
}
-static void rt2500usb_bbp_write(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, const u8 value)
{
u16 reg;
+ mutex_lock(&rt2x00dev->usb_cache_mutex);
+
/*
* Wait until the BBP becomes ready.
*/
reg = rt2500usb_bbp_check(rt2x00dev);
if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n");
+ mutex_unlock(&rt2x00dev->usb_cache_mutex);
return;
}
rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 0);
- rt2500usb_register_write(rt2x00dev, PHY_CSR7, reg);
+ rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
+
+ mutex_unlock(&rt2x00dev->usb_cache_mutex);
}
-static void rt2500usb_bbp_read(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u8 *value)
{
u16 reg;
+ mutex_lock(&rt2x00dev->usb_cache_mutex);
+
/*
* Wait until the BBP becomes ready.
*/
rt2x00_set_field16(®, PHY_CSR7_REG_ID, word);
rt2x00_set_field16(®, PHY_CSR7_READ_CONTROL, 1);
- rt2500usb_register_write(rt2x00dev, PHY_CSR7, reg);
+ rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
/*
* Wait until the BBP becomes ready.
if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
*value = 0xff;
+ mutex_unlock(&rt2x00dev->usb_cache_mutex);
return;
}
- rt2500usb_register_read(rt2x00dev, PHY_CSR7, ®);
+ rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, ®);
*value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
+
+ mutex_unlock(&rt2x00dev->usb_cache_mutex);
}
-static void rt2500usb_rf_write(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, const u32 value)
{
u16 reg;
if (!word)
return;
+ mutex_lock(&rt2x00dev->usb_cache_mutex);
+
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2500usb_register_read(rt2x00dev, PHY_CSR10, ®);
+ rt2500usb_register_read_lock(rt2x00dev, PHY_CSR10, ®);
if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY))
goto rf_write;
udelay(REGISTER_BUSY_DELAY);
}
+ mutex_unlock(&rt2x00dev->usb_cache_mutex);
ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n");
return;
rf_write:
reg = 0;
rt2x00_set_field16(®, PHY_CSR9_RF_VALUE, value);
- rt2500usb_register_write(rt2x00dev, PHY_CSR9, reg);
+ rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
reg = 0;
rt2x00_set_field16(®, PHY_CSR10_RF_VALUE, value >> 16);
rt2x00_set_field16(®, PHY_CSR10_RF_IF_SELECT, 0);
rt2x00_set_field16(®, PHY_CSR10_RF_BUSY, 1);
- rt2500usb_register_write(rt2x00dev, PHY_CSR10, reg);
+ rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
rt2x00_rf_write(rt2x00dev, word, value);
+
+ mutex_unlock(&rt2x00dev->usb_cache_mutex);
}
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
#define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u16)) )
-static void rt2500usb_read_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u32 *data)
{
rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data);
}
-static void rt2500usb_write_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u32 data)
{
rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg);
rt2500usb_register_read(rt2x00dev, MAC_CSR20, ®);
-
- if (rt2x00dev->led_mode == LED_MODE_TXRX_ACTIVITY) {
- rt2x00_set_field16(®, MAC_CSR20_LINK, 1);
- rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 0);
- } else if (rt2x00dev->led_mode == LED_MODE_ASUS) {
- rt2x00_set_field16(®, MAC_CSR20_LINK, 0);
- rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 1);
- } else {
- rt2x00_set_field16(®, MAC_CSR20_LINK, 1);
- rt2x00_set_field16(®, MAC_CSR20_ACTIVITY, 1);
- }
-
+ rt2x00_set_field16(®, MAC_CSR20_LINK,
+ (rt2x00dev->led_mode != LED_MODE_ASUS));
+ rt2x00_set_field16(®, MAC_CSR20_ACTIVITY,
+ (rt2x00dev->led_mode != LED_MODE_TXRX_ACTIVITY));
rt2500usb_register_write(rt2x00dev, MAC_CSR20, reg);
}
if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®);
- reg &= ~0x0002;
+ rt2x00_set_field16(®, PHY_CSR2_LNA, 0);
} else {
- reg = 0x3002;
+ reg = 0;
+ rt2x00_set_field16(®, PHY_CSR2_LNA, 1);
+ rt2x00_set_field16(®, PHY_CSR2_LNA_MODE, 3);
}
rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
* TX descriptor initialization
*/
static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
- struct data_desc *txd,
+ __le32 *txd,
struct txdata_entry_desc *desc,
struct ieee80211_hdr *ieee80211hdr,
unsigned int length,
rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
test_bit(ENTRY_TXD_MORE_FRAG, &desc->flags));
rt2x00_set_field32(&word, TXD_W0_ACK,
- !(control->flags & IEEE80211_TXCTL_NO_ACK));
+ test_bit(ENTRY_TXD_ACK, &desc->flags));
rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags));
rt2x00_set_field32(&word, TXD_W0_OFDM,
struct rxdata_entry_desc *desc)
{
struct urb *urb = entry->priv;
- struct data_desc *rxd = (struct data_desc *)(entry->skb->data +
- (urb->actual_length -
- entry->ring->desc_size));
+ __le32 *rxd = (__le32 *)(entry->skb->data +
+ (urb->actual_length - entry->ring->desc_size));
u32 word0;
u32 word1;
struct rt2x00_dev *rt2x00dev = hw->priv;
struct usb_device *usb_dev =
interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
- struct data_ring *ring =
- rt2x00lib_get_ring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+ struct skb_desc *desc;
+ struct data_ring *ring;
struct data_entry *beacon;
struct data_entry *guardian;
int pipe = usb_sndbulkpipe(usb_dev, 1);
* initialization.
*/
control->queue = IEEE80211_TX_QUEUE_BEACON;
+ ring = rt2x00lib_get_ring(rt2x00dev, control->queue);
/*
* Obtain 2 entries, one for the guardian byte,
beacon = rt2x00_get_data_entry(ring);
/*
- * First we create the beacon.
+ * Add the descriptor in front of the skb.
*/
skb_push(skb, ring->desc_size);
memset(skb->data, 0, ring->desc_size);
- rt2x00lib_write_tx_desc(rt2x00dev, (struct data_desc *)skb->data,
- (struct ieee80211_hdr *)(skb->data +
- ring->desc_size),
- skb->len - ring->desc_size, control);
+ /*
+ * Fill in skb descriptor
+ */
+ desc = get_skb_desc(skb);
+ desc->desc_len = ring->desc_size;
+ desc->data_len = skb->len - ring->desc_size;
+ desc->desc = skb->data;
+ desc->data = skb->data + ring->desc_size;
+ desc->ring = ring;
+ desc->entry = beacon;
+
+ rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
+ /*
+ * USB devices cannot blindly pass the skb->len as the
+ * length of the data to usb_fill_bulk_urb. Pass the skb
+ * to the driver to determine what the length should be.
+ */
length = rt2500usb_get_tx_data_len(rt2x00dev, skb);
usb_fill_bulk_urb(beacon->priv, usb_dev, pipe,
skb->data, length, rt2500usb_beacondone, beacon);
- beacon->skb = skb;
-
/*
* Second we need to create the guardian byte.
* We only need a single byte, so lets recycle
};
static const struct rt2x00_ops rt2500usb_ops = {
- .name = DRV_NAME,
+ .name = KBUILD_MODNAME,
.rxd_size = RXD_DESC_SIZE,
.txd_size = TXD_DESC_SIZE,
.eeprom_size = EEPROM_SIZE,
MODULE_LICENSE("GPL");
static struct usb_driver rt2500usb_driver = {
- .name = DRV_NAME,
+ .name = KBUILD_MODNAME,
.id_table = rt2500usb_device_table,
.probe = rt2x00usb_probe,
.disconnect = rt2x00usb_disconnect,
projects / linux-2.6 / blobdiff