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path: root/drivers/net/wireless/ath/ath9k/htc_hst.c
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2013-01-11ath9k_htc: Fix memory leakSujith Manoharan
SKBs that are allocated in the HTC layer do not have callbacks registered and hence ended up not being freed, Fix this by freeing them properly in the TX completion routine. Cc: <stable@vger.kernel.org> Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-10ath: Add and use pr_fmt, convert printks to pr_<level>Joe Perches
Use a more current logging style. Make sure all output is prefixed appropriately. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-31drivers/net: Remove unnecessary k.alloc/v.alloc OOM messagesJoe Perches
alloc failures use dump_stack so emitting an additional out-of-memory message is an unnecessary duplication. Remove the allocation failure messages. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-24Merge ↵John W. Linville
ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
2011-05-19ath9k: Drag the driver to the year 2011Sujith Manoharan
The Times They Are a-Changin'. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-25Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/iwlwifi/iwl-core.c drivers/net/wireless/rt2x00/rt2x00queue.c drivers/net/wireless/rt2x00/rt2x00queue.h
2011-04-13ath9k_htc: Drain packets on station removalSujith Manoharan
When a station entry is removed, there could still be pending packets destined for that station in the HIF layer. Sending these to the target is not necessary, so drain them in the driver itself. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-13ath9k_htc: Optimize HTC start/stop APISujith Manoharan
There is no point in looping over all the endpoints, since the HIF layer uses the start/stop APIs only for the TX pipe. Simplify the API accordingly. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-13ath9k_htc: Introduce new HTC APISujith Manoharan
A new routine that takes an endpoint explicitly is introduced. The normal htc_send() now retrieves the endpoint from the packet's private data. This would be useful in TX completion when the endpoint ID would be required. While at it, use a helper function to map the queue to endpoint. Data/mgmt/beacon packets use htc_send(), while WMI comamnds pass the endpoint to HTC. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-13ath9k_htc: Use SKB's private area for TX parametersSujith Manoharan
For all packets sent through the USB_WLAN_TX_PIPE endpoint, the private area of the SKB's tx_info can be used to store driver-specific information. For packets sent through USB_REG_OUT_PIPE, this will not make a difference since they are routed through a separate routine that doesn't access the private region. This would help in situations where TX information is required in the URB callback. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-11-24ath9k_htc: Identify devices using driver_infoRajkumar Manoharan
Categorize AR7010 & AR9287 devices based on driver_info of usb_device_id, instead of PIDs. This avoids per-device cases and minimize code changes for new device addition. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-24ath9k_htc: Add support for bluetooth coexistence.Vivek Natarajan
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-04ath9k_htc: Configure credit size for AR7010Sujith
For non-AR9271 chips, the credit size is different and has to be configured appropriately. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-02ath9k_htc: Increase credit sizeSujith
This is the maximum supported by the firmware. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12ath9k_htc: Fix array overflowSujith.Manoharan@atheros.com
Use ENDPOINT_MAX instead of HST_ENDPOINT_MAX. This fixes a stack corruption issue. This is based on a patch sent by Dan Carpenter <error27@gmail.com>. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12ath9k_htc: Fix target ready race conditionSujith.Manoharan@atheros.com
The ready message from the target could be processed before the host HW init has completed. In this case, htc_process_target_rdy() would assume the target has timed out, when it hasn't. Fix this by checking if the target has sent the ready message properly. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12ath9k_htc: Reorder HTC initializationSujith.Manoharan@atheros.com
The HTC state has to be setup before initializing the target because the ready message could possibly come before the control endpoints in HTC have been identified. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-26ath9k_htc: Pass correct private pointerSujith
In the TX callback, the HTC layer has to pass the priv pointer that was registered during service initialization. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16ath9k_htc: Fix sparse endian warningsSujith
This patch fixes a bunch of endian issues that were exposed by sparse. It's a miracle that the driver worked at all till now. The Lord be praised. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-14ath9k-htc:respect usb buffer cacheline alignment in reg out pathMing Lei
In ath9k-htc register out path, ath9k-htc will pass skb->data into usb hcd and usb hcd will do dma mapping and unmapping to the buffer pointed by skb->data, so we should pass a cache-line aligned address. This patch replace __dev_alloc_skb with alloc_skb to make skb->data pointed to a cacheline aligned address simply since ath9k-htc does not skb_push on the skb and pass it to mac80211, also use kfree_skb to free the skb allocated by alloc_skb(we can use kfree_skb safely in hardirq context since skb->destructor is NULL always in the path). Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-14ath9k-htc:respect usb buffer cacheline alignment in reg in pathMing Lei
In ath9k-htc register in path, ath9k-htc will pass skb->data into usb hcd and usb hcd will do dma mapping and unmapping to the buffer pointed by skb->data, so we should pass a cache-line aligned address. This patch replace __dev_alloc_skb with alloc_skb to make skb->data pointed to a cacheline aligned address simply since ath9k-htc does not skb_push on the skb and pass it to mac80211, also use kfree_skb to free the skb allocated by alloc_skb(we can use kfree_skb safely in hardirq context since skb->destructor is NULL always in the path). Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath9k_htc: Fix HTC layer memleakSujith
Messages that are generated by the HTC layer don't have any TX callback endpoints assigned to them. Consequently, the allocated SKBs are never freed. Fix this issue by handling this case in the HTC layer itself. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-31ath9k_htc: Fix watchdog pattern parsingSujith
Skip beyond the watchdog pattern properly. This fixes occasional failure of the driver to load. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23ath9k_htc: Support for AR9271 chipset.Sujith
Features: * Station mode * IBSS mode * Monitor mode * Legacy support * HT support * TX/RX 11n Aggregation * HW encryption * LED * Suspend/Resume For more information: http://wireless.kernel.org/en/users/Drivers/ath9k_htc Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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