/*
- Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+ Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
Abstract: rt2x00 generic usb device routines.
*/
-/*
- * Set enviroment defines for rt2x00.h
- */
-#define DRV_NAME "rt2x00usb"
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb.h>
+#include <linux/bug.h>
#include "rt2x00.h"
#include "rt2x00usb.h"
/*
* Interfacing with the HW.
*/
-int rt2x00usb_vendor_request(const struct rt2x00_dev *rt2x00dev,
+int rt2x00usb_vendor_request(struct rt2x00_dev *rt2x00dev,
const u8 request, const u8 requesttype,
const u16 offset, const u16 value,
void *buffer, const u16 buffer_length,
const int timeout)
{
- struct usb_device *usb_dev =
- interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
+ struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
int status;
unsigned int i;
unsigned int pipe =
(requesttype == USB_VENDOR_REQUEST_IN) ?
usb_rcvctrlpipe(usb_dev, 0) : usb_sndctrlpipe(usb_dev, 0);
+
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
status = usb_control_msg(usb_dev, pipe, request, requesttype,
value, offset, buffer, buffer_length,
}
EXPORT_SYMBOL_GPL(rt2x00usb_vendor_request);
-int rt2x00usb_vendor_request_buff(const struct rt2x00_dev *rt2x00dev,
- const u8 request, const u8 requesttype,
- const u16 offset, void *buffer,
- const u16 buffer_length, const int timeout)
+int rt2x00usb_vendor_req_buff_lock(struct rt2x00_dev *rt2x00dev,
+ const u8 request, const u8 requesttype,
+ const u16 offset, void *buffer,
+ const u16 buffer_length, const int timeout)
{
int status;
+ BUG_ON(!mutex_is_locked(&rt2x00dev->csr_mutex));
+
/*
* Check for Cache availability.
*/
- if (unlikely(!rt2x00dev->csr_cache || buffer_length > CSR_CACHE_SIZE)) {
+ if (unlikely(!rt2x00dev->csr.cache || buffer_length > CSR_CACHE_SIZE)) {
ERROR(rt2x00dev, "CSR cache not available.\n");
return -ENOMEM;
}
if (requesttype == USB_VENDOR_REQUEST_OUT)
- memcpy(rt2x00dev->csr_cache, buffer, buffer_length);
+ memcpy(rt2x00dev->csr.cache, buffer, buffer_length);
status = rt2x00usb_vendor_request(rt2x00dev, request, requesttype,
- offset, 0, rt2x00dev->csr_cache,
+ offset, 0, rt2x00dev->csr.cache,
buffer_length, timeout);
if (!status && requesttype == USB_VENDOR_REQUEST_IN)
- memcpy(buffer, rt2x00dev->csr_cache, buffer_length);
+ memcpy(buffer, rt2x00dev->csr.cache, buffer_length);
+
+ return status;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_vendor_req_buff_lock);
+
+int rt2x00usb_vendor_request_buff(struct rt2x00_dev *rt2x00dev,
+ const u8 request, const u8 requesttype,
+ const u16 offset, void *buffer,
+ const u16 buffer_length, const int timeout)
+{
+ int status;
+
+ mutex_lock(&rt2x00dev->csr_mutex);
+
+ status = rt2x00usb_vendor_req_buff_lock(rt2x00dev, request,
+ requesttype, offset, buffer,
+ buffer_length, timeout);
+
+ mutex_unlock(&rt2x00dev->csr_mutex);
return status;
}
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->csr_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->csr_mutex);
+
+ return status;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_vendor_request_large_buff);
+
+int rt2x00usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
+ const unsigned int offset,
+ struct rt2x00_field32 field,
+ u32 *reg)
+{
+ unsigned int i;
+
+ for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+ rt2x00usb_register_read_lock(rt2x00dev, offset, reg);
+ if (!rt2x00_get_field32(*reg, field))
+ return 1;
+ udelay(REGISTER_BUSY_DELAY);
+ }
+
+ ERROR(rt2x00dev, "Indirect register access failed: "
+ "offset=0x%.08x, value=0x%.08x\n", offset, *reg);
+ *reg = ~0;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_regbusy_read);
+
/*
* TX data handlers.
*/
static void rt2x00usb_interrupt_txdone(struct urb *urb)
{
- struct data_entry *entry = (struct data_entry *)urb->context;
- struct data_ring *ring = entry->ring;
- struct rt2x00_dev *rt2x00dev = ring->rt2x00dev;
- struct data_desc *txd = (struct data_desc *)entry->skb->data;
- u32 word;
- int tx_status;
-
- if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
- !__test_and_clear_bit(ENTRY_OWNER_NIC, &entry->flags))
- return;
-
- rt2x00_desc_read(txd, 0, &word);
+ struct queue_entry *entry = (struct queue_entry *)urb->context;
+ struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+ struct txdone_entry_desc txdesc;
- /*
- * Remove the descriptor data from the buffer.
- */
- skb_pull(entry->skb, ring->desc_size);
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags) ||
+ !test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
+ return;
/*
* Obtain the status about this packet.
+ * Note that when the status is 0 it does not mean the
+ * frame was send out correctly. It only means the frame
+ * was succesfully pushed to the hardware, we have no
+ * way to determine the transmission status right now.
+ * (Only indirectly by looking at the failed TX counters
+ * in the register).
*/
- tx_status = !urb->status ? TX_SUCCESS : TX_FAIL_RETRY;
-
- rt2x00lib_txdone(entry, tx_status, 0);
-
- /*
- * Make this entry available for reuse.
- */
- entry->flags = 0;
- rt2x00_ring_index_done_inc(entry->ring);
-
- /*
- * If the data ring 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 (!rt2x00_ring_full(ring))
- ieee80211_wake_queue(rt2x00dev->hw,
- entry->tx_status.control.queue);
+ txdesc.flags = 0;
+ if (!urb->status)
+ __set_bit(TXDONE_UNKNOWN, &txdesc.flags);
+ else
+ __set_bit(TXDONE_FAILURE, &txdesc.flags);
+ txdesc.retry = 0;
+
+ rt2x00lib_txdone(entry, &txdesc);
}
-int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev,
- struct data_ring *ring, struct sk_buff *skb,
- struct ieee80211_tx_control *control)
+int rt2x00usb_write_tx_data(struct queue_entry *entry)
{
- struct usb_device *usb_dev =
- interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
- struct data_entry *entry = rt2x00_get_data_entry(ring);
- int pipe = usb_sndbulkpipe(usb_dev, 1);
+ 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;
u32 length;
- if (rt2x00_ring_full(ring)) {
- ieee80211_stop_queue(rt2x00dev->hw, control->queue);
- return -EINVAL;
- }
-
- if (test_bit(ENTRY_OWNER_NIC, &entry->flags)) {
- ERROR(rt2x00dev,
- "Arrived at non-free entry in the non-full queue %d.\n"
- "Please file bug report to %s.\n",
- control->queue, DRV_PROJECT);
- ieee80211_stop_queue(rt2x00dev->hw, control->queue);
- return -EINVAL;
- }
-
/*
* Add the descriptor in front of the skb.
*/
- skb_push(skb, ring->desc_size);
- memset(skb->data, 0, ring->desc_size);
+ skb_push(entry->skb, entry->queue->desc_size);
+ memset(entry->skb->data, 0, entry->queue->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);
- memcpy(&entry->tx_status.control, control, sizeof(*control));
- entry->skb = skb;
+ /*
+ * Fill in skb descriptor
+ */
+ 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);
+ length = rt2x00dev->ops->lib->get_tx_data_len(entry);
+
+ usb_fill_bulk_urb(entry_priv->urb, usb_dev,
+ usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint),
+ entry->skb->data, length,
+ rt2x00usb_interrupt_txdone, entry);
/*
- * Initialize URB and send the frame to the device.
+ * Make sure the skb->data pointer points to the frame, not the
+ * descriptor.
*/
- __set_bit(ENTRY_OWNER_NIC, &entry->flags);
- usb_fill_bulk_urb(entry->priv, usb_dev, pipe,
- skb->data, length, rt2x00usb_interrupt_txdone, entry);
- usb_submit_urb(entry->priv, GFP_ATOMIC);
-
- rt2x00_ring_index_inc(ring);
-
- if (rt2x00_ring_full(ring))
- ieee80211_stop_queue(rt2x00dev->hw, control->queue);
+ skb_pull(entry->skb, entry->queue->desc_size);
return 0;
}
EXPORT_SYMBOL_GPL(rt2x00usb_write_tx_data);
+static inline void rt2x00usb_kick_tx_entry(struct queue_entry *entry)
+{
+ struct queue_entry_priv_usb *entry_priv = entry->priv_data;
+
+ if (test_and_clear_bit(ENTRY_DATA_PENDING, &entry->flags))
+ usb_submit_urb(entry_priv->urb, GFP_ATOMIC);
+}
+
+void rt2x00usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
+ const enum data_queue_qid qid)
+{
+ struct data_queue *queue = rt2x00queue_get_queue(rt2x00dev, qid);
+ unsigned long irqflags;
+ unsigned int index;
+ unsigned int index_done;
+ unsigned int i;
+
+ /*
+ * Only protect the range we are going to loop over,
+ * if during our loop a extra entry is set to pending
+ * it should not be kicked during this run, since it
+ * is part of another TX operation.
+ */
+ spin_lock_irqsave(&queue->lock, irqflags);
+ index = queue->index[Q_INDEX];
+ index_done = queue->index[Q_INDEX_DONE];
+ spin_unlock_irqrestore(&queue->lock, irqflags);
+
+ /*
+ * Start from the TX done pointer, this guarentees that we will
+ * send out all frames in the correct order.
+ */
+ if (index_done < index) {
+ for (i = index_done; i < index; i++)
+ rt2x00usb_kick_tx_entry(&queue->entries[i]);
+ } else {
+ for (i = index_done; i < queue->limit; i++)
+ rt2x00usb_kick_tx_entry(&queue->entries[i]);
+
+ for (i = 0; i < index; i++)
+ rt2x00usb_kick_tx_entry(&queue->entries[i]);
+ }
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_kick_tx_queue);
+
/*
* RX data handlers.
*/
static void rt2x00usb_interrupt_rxdone(struct urb *urb)
{
- struct data_entry *entry = (struct data_entry *)urb->context;
- struct data_ring *ring = entry->ring;
- struct rt2x00_dev *rt2x00dev = ring->rt2x00dev;
- struct sk_buff *skb;
- struct rxdata_entry_desc desc;
- int frame_size;
-
- if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
- !test_and_clear_bit(ENTRY_OWNER_NIC, &entry->flags))
+ struct queue_entry *entry = (struct queue_entry *)urb->context;
+ struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+ struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+ u8 rxd[32];
+
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->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->ring->desc_size || urb->status)
- goto skip_entry;
-
- memset(&desc, 0x00, sizeof(desc));
- rt2x00dev->ops->lib->fill_rxdone(entry, &desc);
-
- /*
- * 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.
- */
- frame_size = entry->ring->data_size + entry->ring->desc_size;
- skb = dev_alloc_skb(frame_size + NET_IP_ALIGN);
- if (!skb)
- goto skip_entry;
-
- skb_reserve(skb, NET_IP_ALIGN);
- skb_put(skb, frame_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;
+ }
/*
- * Trim the skb_buffer to only contain the valid
- * frame data (so ignore the device's descriptor).
+ * Fill in desc fields of the skb descriptor
*/
- skb_trim(entry->skb, desc.size);
+ skbdesc->desc = rxd;
+ skbdesc->desc_len = entry->queue->desc_size;
/*
* Send the frame to rt2x00lib for further processing.
*/
- rt2x00lib_rxdone(entry, entry->skb, &desc);
-
- /*
- * 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, &ring->rt2x00dev->flags)) {
- __set_bit(ENTRY_OWNER_NIC, &entry->flags);
- usb_submit_urb(urb, GFP_ATOMIC);
- }
-
- rt2x00_ring_index_inc(ring);
+ rt2x00lib_rxdone(rt2x00dev, entry);
}
/*
* Radio handlers
*/
-void rt2x00usb_enable_radio(struct rt2x00_dev *rt2x00dev)
+void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev)
{
- struct usb_device *usb_dev =
- interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
- struct data_ring *ring;
- struct data_entry *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,
+ REGISTER_TIMEOUT);
+
/*
- * Initialize the TX rings
+ * Cancel all queues.
*/
- txringall_for_each(rt2x00dev, ring) {
- for (i = 0; i < ring->stats.limit; i++)
- ring->entry[i].flags = 0;
-
- rt2x00_ring_index_clear(ring);
+ 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);
+ }
}
/*
- * Initialize and start the RX ring.
+ * Kill guardian urb (if required by driver).
*/
- rt2x00_ring_index_clear(rt2x00dev->rx);
+ 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)
+ usb_kill_urb(bcn_priv->guardian_urb);
+ }
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_disable_radio);
- for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
- entry = &rt2x00dev->rx->entry[i];
+/*
+ * Device initialization handlers.
+ */
+void rt2x00usb_clear_entry(struct queue_entry *entry)
+{
+ struct usb_device *usb_dev =
+ to_usb_device_intf(entry->queue->rt2x00dev->dev);
+ struct queue_entry_priv_usb *entry_priv = entry->priv_data;
+ int pipe;
+
+ if (entry->queue->qid == QID_RX) {
+ pipe = usb_rcvbulkpipe(usb_dev, entry->queue->usb_endpoint);
+ usb_fill_bulk_urb(entry_priv->urb, usb_dev, pipe,
+ entry->skb->data, entry->skb->len,
+ rt2x00usb_interrupt_rxdone, entry);
+
+ set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
+ usb_submit_urb(entry_priv->urb, GFP_ATOMIC);
+ } else {
+ entry->flags = 0;
+ }
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_clear_entry);
+
+static void rt2x00usb_assign_endpoint(struct data_queue *queue,
+ struct usb_endpoint_descriptor *ep_desc)
+{
+ struct usb_device *usb_dev = to_usb_device_intf(queue->rt2x00dev->dev);
+ int pipe;
- usb_fill_bulk_urb(entry->priv, usb_dev,
- usb_rcvbulkpipe(usb_dev, 1),
- entry->skb->data, entry->skb->len,
- rt2x00usb_interrupt_rxdone, entry);
+ queue->usb_endpoint = usb_endpoint_num(ep_desc);
- __set_bit(ENTRY_OWNER_NIC, &entry->flags);
- usb_submit_urb(entry->priv, GFP_ATOMIC);
+ if (queue->qid == QID_RX) {
+ pipe = usb_rcvbulkpipe(usb_dev, queue->usb_endpoint);
+ queue->usb_maxpacket = usb_maxpacket(usb_dev, pipe, 0);
+ } else {
+ pipe = usb_sndbulkpipe(usb_dev, queue->usb_endpoint);
+ queue->usb_maxpacket = usb_maxpacket(usb_dev, pipe, 1);
}
+
+ if (!queue->usb_maxpacket)
+ queue->usb_maxpacket = 1;
}
-EXPORT_SYMBOL_GPL(rt2x00usb_enable_radio);
-void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev)
+static int rt2x00usb_find_endpoints(struct rt2x00_dev *rt2x00dev)
{
- struct data_ring *ring;
+ struct usb_interface *intf = to_usb_interface(rt2x00dev->dev);
+ struct usb_host_interface *intf_desc = intf->cur_altsetting;
+ struct usb_endpoint_descriptor *ep_desc;
+ struct data_queue *queue = rt2x00dev->tx;
+ struct usb_endpoint_descriptor *tx_ep_desc = NULL;
unsigned int i;
- rt2x00usb_vendor_request_sw(rt2x00dev, USB_RX_CONTROL, 0x0000, 0x0000,
- REGISTER_TIMEOUT);
+ /*
+ * Walk through all available endpoints to search for "bulk in"
+ * and "bulk out" endpoints. When we find such endpoints collect
+ * the information we need from the descriptor and assign it
+ * to the queue.
+ */
+ for (i = 0; i < intf_desc->desc.bNumEndpoints; i++) {
+ ep_desc = &intf_desc->endpoint[i].desc;
+
+ if (usb_endpoint_is_bulk_in(ep_desc)) {
+ rt2x00usb_assign_endpoint(rt2x00dev->rx, ep_desc);
+ } else if (usb_endpoint_is_bulk_out(ep_desc) &&
+ (queue != queue_end(rt2x00dev))) {
+ rt2x00usb_assign_endpoint(queue, ep_desc);
+ queue = queue_next(queue);
+
+ tx_ep_desc = ep_desc;
+ }
+ }
+
+ /*
+ * At least 1 endpoint for RX and 1 endpoint for TX must be available.
+ */
+ if (!rt2x00dev->rx->usb_endpoint || !rt2x00dev->tx->usb_endpoint) {
+ ERROR(rt2x00dev, "Bulk-in/Bulk-out endpoints not found\n");
+ return -EPIPE;
+ }
/*
- * Cancel all rings.
+ * It might be possible not all queues have a dedicated endpoint.
+ * Loop through all TX queues and copy the endpoint information
+ * which we have gathered from already assigned endpoints.
*/
- ring_for_each(rt2x00dev, ring) {
- for (i = 0; i < ring->stats.limit; i++)
- usb_kill_urb(ring->entry[i].priv);
+ txall_queue_for_each(rt2x00dev, queue) {
+ if (!queue->usb_endpoint)
+ rt2x00usb_assign_endpoint(queue, tx_ep_desc);
}
+
+ return 0;
}
-EXPORT_SYMBOL_GPL(rt2x00usb_disable_radio);
-/*
- * Device initialization handlers.
- */
static int rt2x00usb_alloc_urb(struct rt2x00_dev *rt2x00dev,
- struct data_ring *ring)
+ struct data_queue *queue)
{
+ struct queue_entry_priv_usb *entry_priv;
+ struct queue_entry_priv_usb_bcn *bcn_priv;
unsigned int i;
+ for (i = 0; i < queue->limit; i++) {
+ entry_priv = queue->entries[i].priv_data;
+ entry_priv->urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!entry_priv->urb)
+ return -ENOMEM;
+ }
+
/*
- * Allocate the URB's
+ * If this is not the beacon queue or
+ * no guardian byte was required for the beacon,
+ * then we are done.
*/
- for (i = 0; i < ring->stats.limit; i++) {
- ring->entry[i].priv = usb_alloc_urb(0, GFP_KERNEL);
- if (!ring->entry[i].priv)
+ if (rt2x00dev->bcn != queue ||
+ !test_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags))
+ return 0;
+
+ for (i = 0; i < queue->limit; i++) {
+ bcn_priv = queue->entries[i].priv_data;
+ bcn_priv->guardian_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!bcn_priv->guardian_urb)
return -ENOMEM;
}
}
static void rt2x00usb_free_urb(struct rt2x00_dev *rt2x00dev,
- struct data_ring *ring)
+ struct data_queue *queue)
{
+ struct queue_entry_priv_usb *entry_priv;
+ struct queue_entry_priv_usb_bcn *bcn_priv;
unsigned int i;
- if (!ring->entry)
+ if (!queue->entries)
return;
- for (i = 0; i < ring->stats.limit; i++) {
- usb_kill_urb(ring->entry[i].priv);
- usb_free_urb(ring->entry[i].priv);
- if (ring->entry[i].skb)
- kfree_skb(ring->entry[i].skb);
+ for (i = 0; i < queue->limit; i++) {
+ entry_priv = queue->entries[i].priv_data;
+ usb_kill_urb(entry_priv->urb);
+ usb_free_urb(entry_priv->urb);
+ }
+
+ /*
+ * If this is not the beacon queue or
+ * no guardian byte was required for the beacon,
+ * then we are done.
+ */
+ if (rt2x00dev->bcn != queue ||
+ !test_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags))
+ return;
+
+ for (i = 0; i < queue->limit; i++) {
+ bcn_priv = queue->entries[i].priv_data;
+ usb_kill_urb(bcn_priv->guardian_urb);
+ usb_free_urb(bcn_priv->guardian_urb);
}
}
int rt2x00usb_initialize(struct rt2x00_dev *rt2x00dev)
{
- struct data_ring *ring;
- struct sk_buff *skb;
- unsigned int entry_size;
- unsigned int i;
+ struct data_queue *queue;
int status;
/*
- * Allocate DMA
+ * Find endpoints for each queue
*/
- ring_for_each(rt2x00dev, ring) {
- status = rt2x00usb_alloc_urb(rt2x00dev, ring);
- if (status)
- goto exit;
- }
+ status = rt2x00usb_find_endpoints(rt2x00dev);
+ if (status)
+ goto exit;
/*
- * For the RX ring, skb's should be allocated.
+ * Allocate DMA
*/
- entry_size = rt2x00dev->rx->data_size + rt2x00dev->rx->desc_size;
- for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
- skb = dev_alloc_skb(NET_IP_ALIGN + entry_size);
- if (!skb)
+ queue_for_each(rt2x00dev, queue) {
+ status = rt2x00usb_alloc_urb(rt2x00dev, queue);
+ if (status)
goto exit;
-
- skb_reserve(skb, NET_IP_ALIGN);
- skb_put(skb, entry_size);
-
- rt2x00dev->rx->entry[i].skb = skb;
}
return 0;
void rt2x00usb_uninitialize(struct rt2x00_dev *rt2x00dev)
{
- struct data_ring *ring;
+ struct data_queue *queue;
- ring_for_each(rt2x00dev, ring)
- rt2x00usb_free_urb(rt2x00dev, ring);
+ queue_for_each(rt2x00dev, queue)
+ rt2x00usb_free_urb(rt2x00dev, queue);
}
EXPORT_SYMBOL_GPL(rt2x00usb_uninitialize);
kfree(rt2x00dev->eeprom);
rt2x00dev->eeprom = NULL;
- kfree(rt2x00dev->csr_cache);
- rt2x00dev->csr_cache = NULL;
+ kfree(rt2x00dev->csr.cache);
+ rt2x00dev->csr.cache = NULL;
}
static int rt2x00usb_alloc_reg(struct rt2x00_dev *rt2x00dev)
{
- rt2x00dev->csr_cache = kzalloc(CSR_CACHE_SIZE, GFP_KERNEL);
- if (!rt2x00dev->csr_cache)
+ rt2x00dev->csr.cache = kzalloc(CSR_CACHE_SIZE, GFP_KERNEL);
+ if (!rt2x00dev->csr.cache)
goto exit;
rt2x00dev->eeprom = kzalloc(rt2x00dev->ops->eeprom_size, GFP_KERNEL);
usb_set_intfdata(usb_intf, hw);
rt2x00dev = hw->priv;
- rt2x00dev->dev = usb_intf;
+ rt2x00dev->dev = &usb_intf->dev;
rt2x00dev->ops = ops;
rt2x00dev->hw = hw;
- rt2x00dev->usb_maxpacket =
- usb_maxpacket(usb_dev, usb_sndbulkpipe(usb_dev, 1), 1);
- if (!rt2x00dev->usb_maxpacket)
- rt2x00dev->usb_maxpacket = 1;
-
retval = rt2x00usb_alloc_reg(rt2x00dev);
if (retval)
goto exit_free_device;
#endif /* CONFIG_PM */
/*
- * rt2x00pci module information.
+ * rt2x00usb module information.
*/
MODULE_AUTHOR(DRV_PROJECT);
MODULE_VERSION(DRV_VERSION);
-MODULE_DESCRIPTION("rt2x00 library");
+MODULE_DESCRIPTION("rt2x00 usb library");
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff