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path: root/drivers/net/wireless/rsi
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2017-09-20rsi: add p2p support parameters to mac80211Prameela Rani Garnepudi
This patch adds p2p supported parameters to mac80211 hw and wiphy structures during mac80211 registration. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-30rsi: remove memset before memcpyHimanshu Jha
calling memcpy immediately after memset with the same region of memory makes memset redundant. Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-30rsi: missing unlocks on error pathsDan Carpenter
There is a missing unlock if rsi_find_sta() fails in rsi_mac80211_ampdu_action() or if we hit the -EINVAL path in rsi_mac80211_sta_add(). Fixes: 3528608f3a79 ("rsi: handle station connection in AP mode") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-30rsi: update some commentsDan Carpenter
These functions don't return -1 on failure. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-24net: rsi: mac80211: constify ieee80211_opsArvind Yadav
ieee80211_ops are not supposed to change at runtime. All functions working with ieee80211_ops provided by <net/mac80211.h> work with const ieee80211_ops. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: security enhancements for AP modePrameela Rani Garnepudi
Station id should be set in load key frame configured to device. For WEP mode, key is configured once from mac80211. This key is saved and configured to device every time a station is connected. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: aggregation parameters frame for AP modePrameela Rani Garnepudi
TX command frame ampdu aggregation parameters is updated to include sta_id for AP mode. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: update tx auto rate command frame for AP modePrameela Rani Garnepudi
Auto rate frame is sent to firmware when a new station is connected. Station id and station's ht capabilities are updated in auto rate command frame. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: use common descriptor for auto rate framePrameela Rani Garnepudi
TX command frame auto rate request is modified to use common descriptor struture. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: data and managemet path changes for AP modePrameela Rani Garnepudi
Station id needs to be get for data and management frames to fill in the descruptor for AP mode. Few other changes related to AP mode are covered here. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: handle station disconnection in AP modePrameela Rani Garnepudi
When sta_remove of mac80211 is called, driver iterates through list of existing stations to get the station id. Then peer notify is prepared and send to firmare. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: handle station connection in AP modePrameela Rani Garnepudi
Station structures are maintained in driver with required fields. When mac80211 callback sta_add is called, driver iterates through list of connected stations to check available index and assigns station id which is important for further communication to that station. Then peer notify frame is send to firmware to inform the firmware about new station connection. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: add beacon changes for AP modePrameela Rani Garnepudi
Mac80211 config parameter BEACON_ENABLE is handled. When VAP capabilities frame with AP mode is configured to firmware, beacon events start coming to host at each PreTBTT. At this time, beacon is taken from mac80211, descriptor is prepared and send to firmware. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: remove interface changes for AP modePrameela Rani Garnepudi
remove_interface callback of mac80211 is handled for AP mode. Same is notified to firmware through vap_capabilities frame with VAP status VAP_DELETE. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: add interface changes for ap modePrameela Rani Garnepudi
AP mode is handled in add_interface callback of mac80211. Also for AP mode, sending rx filter frame to disallow beacons to host is added. Station structures are initialized to NULL. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-17rsi: advertise ap mode supportPrameela Rani Garnepudi
AP mode support is advertised to cfg80211. Necessary wiphy parameters are initialized. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08rsi: RTS threshold configurationKarun Eagalapati
Provision is added for configuring RTS threshold by sending vap dynamic update frame to firmware. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08rsi: buffer available interrupt handlingKarun Eagalapati
BUFFER_AVAILABLE interrupt is sent by firmware to indicate change in buffer status. We should check buffer status while handling this interrupt. Currently buffer status is checked only while dequeueing packets. This patch fixes a data traffic stuck problem observed occasionally. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08rsi: buffer full check optimizationKarun Eagalapati
We get buffer full event from firmware whenever Tx queue is full Host should stop writing packets after this and resume after buffer free event. Buffer status checking is optimized for once in 4 times if BUFF_FULL condition is not set, otherwise once for every packet. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08rsi: rename sdio_read_buffer_status_registerKarun Eagalapati
rsi_sdio_check_buffer_status would be the appropriate name for this function as we are checking hardware buffers availability status. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08rsi: add support for U-APSD power saveKarun Eagalapati
This patch adds support for U-APSD power save. Configuration frame is downloaded to firmware with default settings and support is advertised to mac80211 Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08rsi: add support for legacy power saveKarun Eagalapati
This patch adds support for legacy power save. Necessary configuration frames are downloaded to firmware when power save is enabled/disabled Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08rsi: update set_antenna command framePavani Muthyala
TX command frame set_antenna is modified to use common descriptor structure. Also it's subframe type is set. Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08rsi: add support for rf-kill functionalityPavani Muthyala
This patch implements rfkill_poll handler. Also, necessary changes are done in interface up and down handler to support rfkill functionality. Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-08-08rsi: fix uninitialized descriptor pointer issuePrameela Rani Garnepudi
This patch fixes the uninitialized descriptor pointer issue in function rsi_send_internal_mgmt_frame(). Descriptor should point to start of the skb data. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 9a629fafe7d8 ("rsi: immediate wakeup bit and priority for TX command packets") Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: fix static checker warningAmitkumar Karwar
u32 pointer is changed to u16 and filled the value. Problem is solved by using local temporary variable. Below static checker warning was reported. drivers/net/wireless/rsi/rsi_91x_usb.c:400 rsi_usb_master_reg_read() warn: passing casted pointer 'value' to 'rsi_usb_reg_read()' 32 vs 16. Fixes: b97e9b94ad75c ("rsi: Add new host interface operations") Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: check length before USB read/write registerAmitkumar Karwar
These checks are required. Otherwise we may end up getting memory corruption if invalid length is passed. Fixes: b97e9b94ad75c ("rsi: Add new host interface operations") Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: use macro for allocating USB bufferAmitkumar Karwar
4 bytes is fixed size for reading or writing USB register. We will use a macro instead of hardcoding this. Fixes: b97e9b94ad75c ("rsi: Add new host interface operations") Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: regulatory enhancementsPrameela Rani Garnepudi
Below regulatory changes are included this patch * Country code is saved as it will be used in bgscan. * Region codes are mapped according to RSI region codes. * Radar flag settings are moved under the check if 5GHZ band is enabled. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Send rx filter frame to device when interface is downPrameela Rani Garnepudi
When interface is down it is better to stop all RX packets to host. 0xffff will block all packets to host. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Remove internal header from Tx status skbPrameela Rani Garnepudi
Device specific descriptor for each TX packet is prepared on top of skb data address. This descriptor should be pulled out before indicating the TX status to mac80211. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: update tx command frame block/unblock dataPrameela Rani Garnepudi
TX command frame block/unblock data is modified to use common descriptor structure. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: block/unblock data queues as per connection statusPrameela Rani Garnepudi
Data queues should be unblocked after station add notify frame is sent and should be blocked after station delete notify is sent. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: update autorate request command framePrameela Rani Garnepudi
When Short Gaurd Interval is enabled bit 9 is set in rate. Otherwise it should not be set. Added missing 'else' case in this patch. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: set_key enhancementsPrameela Rani Garnepudi
Broadcast bit to be set for broadcast and multicast packets. For remove_key, tx and rx mic need not be filled. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: update set_key command framePrameela Rani Garnepudi
TX command frame set_key is modified to use common descriptor structure. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: update vap capabilities command framePrameela Rani Garnepudi
VAP capablities frame configured to device is modified to use common descriptor structure. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: update set_channel command framePrameela Rani Garnepudi
TX command frame set_channel is modified to use common descriptor structure. Also DFS channel indication to firmware is added in the descriptor for dfs channels configuration. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Update baseband RF programming framePrameela Rani Garnepudi
Baseband RF programming frame configured to device is modified to use common descriptor structure. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Update aggregation parameters command framePrameela Rani Garnepudi
AMPDU aggregation parameters frame configured to device is modified to use common descriptor structure. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Update peer notify command framePrameela Rani Garnepudi
TX command frame peer notify is updated to use common descriptor structure. MPDU density value added to the frame. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: remove unnecessary check for 802.11 management packetPrameela Rani Garnepudi
The function rsi_mgmt_pkt_to_core() is for passing the 802.11 management frames to mac80211. So, it is unnecessary to check again for the frame type 802.11 management in this function. It can be checked before passing to this function. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Update in tx command frame radio capabilitiesPrameela Rani Garnepudi
Radio capabilities frame is updated to use common descriptor structure. Also, few changes to this frame is done like hardware queues are increase to 12 from 8, default channel number is included. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: immediate wakeup bit and priority for TX command packetsPrameela Rani Garnepudi
For all TX command packets immediate wakeup bit needs to be set in descriptor. This will make sure device will wakeup if it is in any sleep state. Priority of the packet is also set. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: add common structures needed for command packetsPrameela Rani Garnepudi
All internal management packets (command packets) use some common fields and some packet specific fields for packet descriptors. This patch adds some common structures which are needed for all command packets. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Rename mutex tx_rxlock to the tx_lock.Karun Eagalapati
We have now added separate lock for Rx. This lock is used to protect tx path only Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: use separate mutex lock for receive threadKarun Eagalapati
Deadlock issue is observed during our stress tests. The root cause for the issue is same lock is used between tx and rx threads. This patch adds a separate mutex lock for rx thread to resolve the problem. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: SDIO Rx packet processing enhancementKarun Eagalapati
Newer firmware sends information about number of blocks through interrupt only. We don't need to read extra register for this. This patch adds needed driver changes for this enhancment. The change here is backward compatible Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Optimise sdio claim and release hostKarun Eagalapati
SDIO host is already claimed in our interrupt handler. Some lower level APIs claims host while performing SDIO read or write operations. Let's use sdio_irq_task variable to check if we are in interrupt context and claim/release the host accordingly. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: rename variable in_sdio_litefi_irqKarun Eagalapati
The variable in_sdio_litefi_irq is renamed to sdio_irq_task, as it is more relevant here. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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