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path: root/drivers/net/wireless/ath/ath9k/wmi.c
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2015-08-13ath9k_htc: wmi: match wait_for_completion_timeout return typeNicholas Mc Guire1-1/+2
Return type of wait_for_completion_timeout is unsigned long not int. As time_left is exclusively used for wait_for_completion_timeout here its type is simply changed to unsigned long. API conformance testing for completions with coccinelle spatches are being used to locate API usage inconsistencies: ./drivers/net/wireless/ath/ath9k/wmi.c:331 int return assigned to unsigned long Patch was compile tested with x86_64_defconfig + CONFIG_ATH_CARDS=m, CONFIG_ATH9K_HTC=m Patch is against 4.1-rc3 (localversion-next is -next-20150514) Signed-off-by: Nicholas Mc Guire <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2015-04-07ath9k_htc: check seq number instead of cmd id for timeoutFred Chou1-6/+6
As the driver may send multiple wmi commands with identical cmd id, it is more robust to check seq number for timeout instead. Signed-off-by: Fred Chou <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2015-03-30ath9k_htc: add new WMI_REG_RMW_CMDID commandOleksij Rempel1-0/+3
Since usb bus add extra delay on each request, a command with read + write requests is too expensive. We can dramtically reduce usb load by moving this command to firmware. In my tests, this patch will reduce channel scan time for about 5-10 seconds. Signed-off-by: Oleksij Rempel <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2011-12-19ath: Convert ath_dbg(bar, ATH_DBG_<FOO>, to ath_dbg(bar, FOOJoe Perches1-5/+3
Add ATH_DBG_ to macros to shorten the uses and reduce the line count. Coalesce ath_dbg formats. Add missing spaces to coalesced formats. Add missing newline terminations to ath_dbg formats. Align ath_dbg arguments where appropriate. Standardize ath_dbg formats without periods. Signed-off-by: Joe Perches <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-05-19ath9k: Drag the driver to the year 2011Sujith Manoharan1-1/+1
The Times They Are a-Changin'. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-28ath9k_htc: Add a new WMI command to set a rate maskSujith Manoharan1-0/+2
This patch adds WMI_BITRATE_MASK_CMDID which can be used by the set_bitrate_mask() handler. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-28ath9k_htc: Remove unused WMI_AGGR_LIMIT_CMDSujith Manoharan1-2/+0
Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Add detailed firmware statisticsSujith Manoharan1-11/+8
New debugfs files: <debugfs_root>/ath9k_htc/<phy#>/tgt_int_stats <debugfs_root>/ath9k_htc/<phy#>/tgt_tx_stats <debugfs_root>/ath9k_htc/<phy#>/tgt_rx_stats Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Add a timer to cleanup WMI eventsSujith Manoharan1-0/+3
Occasionally, a WMI event would arrive ahead of the TX URB completion handler. Discarding these events would exhaust the available TX slots, so handle them by running a timer cleaning up such events. Also, timeout packets for which TX completion events have not arrived. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Add support for TX completionSujith Manoharan1-0/+10
Now that the infrastructure is in place, process WMI TX status events and complete packets. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Introduce new HTC APISujith Manoharan1-1/+1
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 <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Use SKB's private area for TX parametersSujith Manoharan1-1/+1
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 <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Remove unused WMI commandsSujith Manoharan1-14/+0
WMI_TGT_TXQ_ENABLE_CMDID WMI_HOST_ATTACH WMI_DEBUG_INFO_CMDID WMI_BEACON_UPDATE_CMDID WMI_RESET_CMDID WMI_RX_LINK_CMDID WMI_STOP_DMA_RECV_CMDID Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Queue WMI eventsSujith Manoharan1-34/+63
Use a queue to handle WMI events and schedule a tasklet to process the events. This fixes the race between the WMI event ISR and the SWBA tasklet when the arrival of WMI events in quick succession could overwrite the SWBA data before the tasklet from a previous iteration could have been scheduled. Also, drain the WMI queue properly. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Add beacon slotsSujith Manoharan1-1/+3
Beacon transmission is now handled through a slot mechanism. This allows multiple beaconing interfaces to be be present. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Fix WMI and beacon headerSujith Manoharan1-1/+6
Match the beacon header with that of the firmware. Also, the firmware reports the TSF for an SWBA, so store it. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-04-13ath9k_htc: Add a WMI command to get the firmware versionSujith Manoharan1-0/+2
Also, update the wiphy information and use the correct device pointer when registering. This would fix ethtool. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-02-23ath9k_htc: Configure beacon timers in AP modeSujith Manoharan1-4/+0
Handle multi-interface situations by checking if AP interfaces are already present. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-01-04ath9k_htc: Handle FATAL eventsSujith Manoharan1-2/+16
The device has to be reset when a FATAL event is received. Not doing so would leave the card in a non-working state. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-12-22ath9k_htc: Fix warning on device removalSujith Manoharan1-1/+1
The commit "ath9k_hw: warn if we cannot change the power to the chip" introduced a new warning to indicate chip powerup failures, but this is not required for devices that have been removed. Handle USB device removal properly by checking for unplugged status. For PCI devices, this warning will still be seen when the card is pulled out, not sure how to check for card removal. Signed-off-by: Sujith Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-12-07ath: Convert ath_print to ath_dbgJoe Perches1-6/+6
Remove ath/debug.h and the includes of these files. Coalesce long formats. Correct a few misspellings and missing "\n"s from these logging messages. Remove unnecessary trailing space before a newline. Remove ARRAY_SIZE casts, use printf type %zu Signed-off-by: Joe Perches <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-09-14ath9k_htc: Fix memory leak on WMI event handlerRajkumar Manoharan1-50/+22
ath9k_wmi_ctrl_rx is racy with ath9k_wmi_tasklet on event notification due to which the wmi_skb may be overwritten which leads to memory leak. Signed-off-by: Rajkumar Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-08-24ath9k_htc: Add support for bluetooth coexistence.Vivek Natarajan1-0/+2
Signed-off-by: Vivek Natarajan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-06-02ath9k: cleanup: remove unneeded null checkDan Carpenter1-3/+0
We dereference "wmi" on the line before and also when we initialize "ah". This check has always been after a dereference since the first commit a couple months ago. Looking through the code, it looks like "wmi" can't actually be null here so I just removed the check. Signed-off-by: Dan Carpenter <[email protected]> Acked-by: Sujith <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-04-26ath9k_htc: Fix WMI command raceSujith1-4/+4
My patch "ath9k_htc: Handle WMI timeouts properly" introduced a race condition in WMI command processing. The last issued command should be stored _before_ issuing a WMI command. Not doing this would result in the WMI event IRQ dropping correct command responses as invalid. Fix this race by storing the command id correctly. Signed-off-by: Sujith <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-04-26ath9k_htc: Handle device unplug properlySujith1-0/+3
When the USB device has been unplugged, there is no point in trying to send commands to the target. Fix this by denying all WMI commands in such a case. Signed-off-by: Sujith <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-04-16ath9k_htc: Fix sparse endian warningsSujith1-1/+1
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 <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-04-16ath9k_htc: Handle WMI timeouts properlySujith1-0/+13
If a WMI command has timed out for some reason, a late WMI response would end up updating the response region of a new WMI request that has been issued in the meantime. Fix this race condition by dropping a WMI response if a new WMI command has been issued. Signed-off-by: Sujith <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-04-16ath9k_htc: Implement multiple register write supportSujith1-0/+1
This patch adds support for writing multiple registers in a single USB command. Specific calls from the HW code that performs multiple register writes would be modified to make use of this in subsequent patches. Signed-off-by: Sujith <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-04-14ath9k-htc:respect usb buffer cacheline alignment in reg out pathMing Lei1-3/+3
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 <[email protected]> Signed-off-by: Ming Lei <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-04-14ath9k-htc:respect usb buffer cacheline alignment in reg in pathMing Lei1-2/+2
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 <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2010-03-23ath9k_htc: Support for AR9271 chipset.Sujith1-0/+319
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 <[email protected]> Signed-off-by: Vasanthakumar Thiagarajan <[email protected]> Signed-off-by: Senthil Balasubramanian <[email protected]> Signed-off-by: John W. Linville <[email protected]>
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