void *buffer, const u16 buffer_length,
const int timeout)
{
- struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
+ struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
int status;
unsigned int i;
unsigned int pipe =
}
EXPORT_SYMBOL_GPL(rt2x00usb_vendor_request_buff);
+int rt2x00usb_vendor_request_large_buff(struct rt2x00_dev *rt2x00dev,
+ const u8 request, const u8 requesttype,
+ const u16 offset, const void *buffer,
+ const u16 buffer_length,
+ const int timeout)
+{
+ int status = 0;
+ unsigned char *tb;
+ u16 off, len, bsize;
+
+ mutex_lock(&rt2x00dev->usb_cache_mutex);
+
+ tb = (char *)buffer;
+ off = offset;
+ len = buffer_length;
+ while (len && !status) {
+ bsize = min_t(u16, CSR_CACHE_SIZE, len);
+ status = rt2x00usb_vendor_req_buff_lock(rt2x00dev, request,
+ requesttype, off, tb,
+ bsize, timeout);
+
+ tb += bsize;
+ len -= bsize;
+ off += bsize;
+ }
+
+ mutex_unlock(&rt2x00dev->usb_cache_mutex);
+
+ return status;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_vendor_request_large_buff);
+
/*
* TX data handlers.
*/
struct queue_entry *entry = (struct queue_entry *)urb->context;
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct txdone_entry_desc txdesc;
- enum data_queue_qid qid = skb_get_queue_mapping(entry->skb);
if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
- !__test_and_clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
+ !test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
return;
/*
txdesc.retry = 0;
rt2x00lib_txdone(entry, &txdesc);
-
- /*
- * Make this entry available for reuse.
- */
- entry->flags = 0;
- rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE);
-
- /*
- * If the data queue was full before the txdone handler
- * we must make sure the packet queue in the mac80211 stack
- * is reenabled when the txdone handler has finished.
- */
- if (!rt2x00queue_full(entry->queue))
- ieee80211_wake_queue(rt2x00dev->hw, qid);
}
-int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev,
- struct data_queue *queue, struct sk_buff *skb)
+int rt2x00usb_write_tx_data(struct queue_entry *entry)
{
- struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
- struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX);
+ struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+ struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
struct queue_entry_priv_usb *entry_priv = entry->priv_data;
struct skb_frame_desc *skbdesc;
- struct txentry_desc txdesc;
u32 length;
- if (rt2x00queue_full(queue))
- return -EINVAL;
-
- if (test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags)) {
- ERROR(rt2x00dev,
- "Arrived at non-free entry in the non-full queue %d.\n"
- "Please file bug report to %s.\n",
- entry->queue->qid, DRV_PROJECT);
- return -EINVAL;
- }
-
- /*
- * Copy all TX descriptor information into txdesc,
- * after that we are free to use the skb->cb array
- * for our information.
- */
- entry->skb = skb;
- rt2x00queue_create_tx_descriptor(entry, &txdesc);
-
/*
* Add the descriptor in front of the skb.
*/
- skb_push(skb, queue->desc_size);
- memset(skb->data, 0, queue->desc_size);
+ skb_push(entry->skb, entry->queue->desc_size);
+ memset(entry->skb->data, 0, entry->queue->desc_size);
/*
* Fill in skb descriptor
*/
- skbdesc = get_skb_frame_desc(skb);
- memset(skbdesc, 0, sizeof(*skbdesc));
- skbdesc->data = skb->data + queue->desc_size;
- skbdesc->data_len = skb->len - queue->desc_size;
- skbdesc->desc = skb->data;
- skbdesc->desc_len = queue->desc_size;
- skbdesc->entry = entry;
-
- rt2x00queue_write_tx_descriptor(entry, &txdesc);
+ skbdesc = get_skb_frame_desc(entry->skb);
+ skbdesc->desc = entry->skb->data;
+ skbdesc->desc_len = entry->queue->desc_size;
/*
* 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 = rt2x00dev->ops->lib->get_tx_data_len(rt2x00dev, skb);
-
- /*
- * Initialize URB and send the frame to the device.
- */
- __set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
- __set_bit(ENTRY_DATA_PENDING, &entry->flags);
-
- usb_fill_bulk_urb(entry_priv->urb, usb_dev, usb_sndbulkpipe(usb_dev, 1),
- skb->data, length, rt2x00usb_interrupt_txdone, entry);
+ length = rt2x00dev->ops->lib->get_tx_data_len(rt2x00dev, entry->skb);
- rt2x00queue_index_inc(queue, Q_INDEX);
+ usb_fill_bulk_urb(entry_priv->urb, usb_dev,
+ usb_sndbulkpipe(usb_dev, 1),
+ entry->skb->data, length,
+ rt2x00usb_interrupt_txdone, entry);
return 0;
}
/*
* RX data handlers.
*/
-static struct sk_buff* rt2x00usb_alloc_rxskb(struct data_queue *queue)
-{
- struct sk_buff *skb;
- unsigned int frame_size;
- unsigned int reserved_size;
-
- /*
- * The frame size includes descriptor size, because the
- * hardware directly receive the frame into the skbuffer.
- */
- frame_size = queue->data_size + queue->desc_size;
-
- /*
- * For the allocation we should keep a few things in mind:
- * 1) 4byte alignment of 802.11 payload
- *
- * For (1) we need at most 4 bytes to guarentee the correct
- * alignment. We are going to optimize the fact that the chance
- * that the 802.11 header_size % 4 == 2 is much bigger then
- * anything else. However since we need to move the frame up
- * to 3 bytes to the front, which means we need to preallocate
- * 6 bytes.
- */
- reserved_size = 6;
-
- /*
- * Allocate skbuffer.
- */
- skb = dev_alloc_skb(frame_size + reserved_size);
- if (!skb)
- return NULL;
-
- skb_reserve(skb, reserved_size);
- skb_put(skb, frame_size);
-
- return skb;
-}
-
static void rt2x00usb_interrupt_rxdone(struct urb *urb)
{
struct queue_entry *entry = (struct queue_entry *)urb->context;
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
- struct sk_buff *skb;
- struct skb_frame_desc *skbdesc;
- struct rxdone_entry_desc rxdesc;
- unsigned int header_size;
- unsigned int align;
+ struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+ u8 rxd[32];
if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
- !test_and_clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
+ !test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
return;
/*
* to be actually valid, or if the urb is signaling
* a problem.
*/
- if (urb->actual_length < entry->queue->desc_size || urb->status)
- goto skip_entry;
-
- /*
- * Fill in skb descriptor
- */
- skbdesc = get_skb_frame_desc(entry->skb);
- memset(skbdesc, 0, sizeof(*skbdesc));
- skbdesc->entry = entry;
-
- memset(&rxdesc, 0, sizeof(rxdesc));
- rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc);
-
- header_size = ieee80211_get_hdrlen_from_skb(entry->skb);
-
- /*
- * The data behind the ieee80211 header must be
- * aligned on a 4 byte boundary. We already reserved
- * 2 bytes for header_size % 4 == 2 optimization.
- * To determine the number of bytes which the data
- * should be moved to the left, we must add these
- * 2 bytes to the header_size.
- */
- align = (header_size + 2) % 4;
-
- if (align) {
- skb_push(entry->skb, align);
- /* Move entire frame in 1 command */
- memmove(entry->skb->data, entry->skb->data + align,
- rxdesc.size);
+ if (urb->actual_length < entry->queue->desc_size || urb->status) {
+ __set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
+ usb_submit_urb(urb, GFP_ATOMIC);
+ return;
}
- /* Update data pointers, trim buffer to correct size */
- skbdesc->data = entry->skb->data;
- skb_trim(entry->skb, rxdesc.size);
-
/*
- * Allocate a new sk buffer to replace the current one.
- * If allocation fails, we should drop the current frame
- * so we can recycle the existing sk buffer for the new frame.
+ * Fill in desc fields of the skb descriptor
*/
- skb = rt2x00usb_alloc_rxskb(entry->queue);
- if (!skb)
- goto skip_entry;
+ skbdesc->desc = rxd;
+ skbdesc->desc_len = entry->queue->desc_size;
/*
* Send the frame to rt2x00lib for further processing.
*/
- rt2x00lib_rxdone(entry, &rxdesc);
-
- /*
- * Replace current entry's skb with the newly allocated one,
- * and reinitialize the urb.
- */
- entry->skb = skb;
- urb->transfer_buffer = entry->skb->data;
- urb->transfer_buffer_length = entry->skb->len;
-
-skip_entry:
- if (test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags)) {
- __set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
- usb_submit_urb(urb, GFP_ATOMIC);
- }
-
- rt2x00queue_index_inc(entry->queue, Q_INDEX);
+ rt2x00lib_rxdone(rt2x00dev, entry);
}
/*
{
struct queue_entry_priv_usb *entry_priv;
struct queue_entry_priv_usb_bcn *bcn_priv;
+ struct data_queue *queue;
unsigned int i;
rt2x00usb_vendor_request_sw(rt2x00dev, USB_RX_CONTROL, 0, 0,
/*
* Cancel all queues.
*/
- for (i = 0; i < rt2x00dev->rx->limit; i++) {
- entry_priv = rt2x00dev->rx->entries[i].priv_data;
- usb_kill_urb(entry_priv->urb);
+ queue_for_each(rt2x00dev, queue) {
+ for (i = 0; i < queue->limit; i++) {
+ entry_priv = queue->entries[i].priv_data;
+ usb_kill_urb(entry_priv->urb);
+ }
}
/*
- * Kill guardian urb.
+ * Kill guardian urb (if required by driver).
*/
+ if (!test_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags))
+ return;
+
for (i = 0; i < rt2x00dev->bcn->limit; i++) {
bcn_priv = rt2x00dev->bcn->entries[i].priv_data;
if (bcn_priv->guardian_urb)
void rt2x00usb_init_rxentry(struct rt2x00_dev *rt2x00dev,
struct queue_entry *entry)
{
- struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
+ struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
struct queue_entry_priv_usb *entry_priv = entry->priv_data;
usb_fill_bulk_urb(entry_priv->urb, usb_dev,
entry_priv = queue->entries[i].priv_data;
usb_kill_urb(entry_priv->urb);
usb_free_urb(entry_priv->urb);
- if (queue->entries[i].skb)
- kfree_skb(queue->entries[i].skb);
}
/*
int rt2x00usb_initialize(struct rt2x00_dev *rt2x00dev)
{
struct data_queue *queue;
- struct sk_buff *skb;
- unsigned int entry_size;
- unsigned int i;
- int uninitialized_var(status);
+ int status;
/*
* Allocate DMA
goto exit;
}
- /*
- * For the RX queue, skb's should be allocated.
- */
- entry_size = rt2x00dev->rx->data_size + rt2x00dev->rx->desc_size;
- for (i = 0; i < rt2x00dev->rx->limit; i++) {
- skb = rt2x00usb_alloc_rxskb(rt2x00dev->rx);
- if (!skb)
- goto exit;
-
- rt2x00dev->rx->entries[i].skb = skb;
- }
-
return 0;
exit:
usb_set_intfdata(usb_intf, hw);
rt2x00dev = hw->priv;
- rt2x00dev->dev = usb_intf;
+ rt2x00dev->dev = &usb_intf->dev;
rt2x00dev->ops = ops;
rt2x00dev->hw = hw;
mutex_init(&rt2x00dev->usb_cache_mutex);
projects / linux-2.6 / blobdiff