diff options
| author | Ivo van Doorn <IvDoorn@gmail.com> | 2008-06-07 00:50:28 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-06-14 20:17:56 +0400 |
| commit | 6db3786aee36b32e5ed072ed67fad6d5341b0991 (patch) | |
| tree | af6ef8406b539e418f2cbc74609e50faa28a4ee1 /drivers/net/wireless/rt2x00/rt2x00queue.c | |
| parent | f019d51410a9b61278eeff811a1ca11d2a905241 (diff) | |
| download | linux-6db3786aee36b32e5ed072ed67fad6d5341b0991.tar.xz | |
rt2x00: Move generic TX frame writing code into rt2x00queue
The write_tx_data functions in rt2x00pci and rt2x00usb have
a lot in common. This moves that duplicate code into
rt2x00queue_write_tx_frame().
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00queue.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00queue.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index 6f3aa0f71f9f..f875b7ab09fe 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -188,6 +188,43 @@ void rt2x00queue_write_tx_descriptor(struct queue_entry *entry, } EXPORT_SYMBOL_GPL(rt2x00queue_write_tx_descriptor); +int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb) +{ + struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX); + struct txentry_desc txdesc; + + if (unlikely(rt2x00queue_full(queue))) + return -EINVAL; + + if (__test_and_set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags)) { + ERROR(queue->rt2x00dev, + "Arrived at non-free entry in the non-full queue %d.\n" + "Please file bug report to %s.\n", + 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); + + if (unlikely(queue->rt2x00dev->ops->lib->write_tx_data(entry))) { + __clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); + return -EIO; + } + + __set_bit(ENTRY_DATA_PENDING, &entry->flags); + + rt2x00queue_index_inc(queue, Q_INDEX); + rt2x00queue_write_tx_descriptor(entry, &txdesc); + + return 0; +} + struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev, const enum data_queue_qid queue) { |