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path: root/drivers/net/wireless/rt2x00/rt2800usb.c
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2012-10-02rt2x00: Fix rfkill polling prior to interface start.Gertjan van Wingerde
commit a396e10019eaf3809b0219c966865aaafec12630 upstream. We need to program the rfkill switch GPIO pin direction to input at device initialization time, not only when the interface is brought up. Doing this only when the interface is brought up could lead to rfkill detecting the switch is turned on erroneously and inability to create the interface and bringing it up. Reported-and-tested-by: Andreas Messer <andi@bastelmap.de> Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo Van Doorn <ivdoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-26rt2x00: Add support for BUFFALO WLI-UC-GNM2 to rt2800usb.Jeongdo Son
commit a769f9577232afe2c754606a83aad85127e7052a upstream. This is a RT3070 based device. Signed-off-by: Jeongdo Son <sohn9086@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-27rt2x00: Identify rt2800usb chipsets.Gertjan van Wingerde
commit bc93eda7e903ff75cefcb6e247ed9b8e9f8e9783 upstream. According to the latest USB ID database these are all RT2770 / RT2870 / RT307x devices. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-27rt2800: Add support for the Fujitsu Stylistic Q550Alan Cox
commit 3ac44670ad0fca8b6c43b3e4d8494c67c419f494 upstream. Just another USB identifier. Signed-off-by: Alan Cox <alan@linux.intel.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-27rt2x00: Add USB device ID of Buffalo WLI-UC-GNHP.Gertjan van Wingerde
commit c18b7806e4f3373b2f296a65fb19251a3b49a532 upstream. This is reported to be an RT3070 based device. Reported-by: Teika Kazura <teika@lavabit.com> Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-27rt2800usb: Add new device ID for BelkinEduardo Bacchi Kienetz
commit 43bf8c245237b8309153aa39d4e8f1586cf56af0 upstream. Belkin's Connect N150 Wireless USB Adapter, model F7D1101 version 2, uses ID 0x945b. Chipset info: rt: 3390, rf: 000b, rev: 3213. I have just bought one, which started to work perfectly after the ID was added through this patch. Signed-off-by: Eduardo Bacchi Kienetz <eduardo@kienetz.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-27rt2x00: Properly identify rt2800usb devices.Gertjan van Wingerde
commit acb56120d2c386d6dd104a6515c1a15dabc1ef87 upstream. Sitecom WLA4000 (USB ID 0x0df6:0x0060) is an RT3072 chipset. Sitecom WLA5000 (USB ID 0x0df6:0x0062) is an RT3572 chipset. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-02rt2x00: Add support for D-Link DWA-127 to rt2800usb.Gertjan van Wingerde
commit d42a179b941a9e4cc6cf41d0f3cbadd75fc48a89 upstream. This is an RT3070 based device. Reported-by: Mikhail Kryshen <mikhail@kryshen.net> Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-01-12rt2800usb: Move ID out of unknownLarry Finger
commit 3f81f8f1524ccca24df1029b0cf825ecef5e5cdc upstream. Testing on the openSUSE wireless forum has shown that a Linksys WUSB54GC v3 with USB ID 1737:0077 works with rt2800usb when the ID is written to /sys/.../new_id. This ID can therefore be moved out of UNKNOWN. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-03rt2x00: fix crash in rt2800usb_write_tx_descStanislaw Gruszka
commit 4b1bfb7d2d125af6653d6c2305356b2677f79dc6 upstream. Patch should fix this oops: BUG: unable to handle kernel NULL pointer dereference at 000000a0 IP: [<f8e06078>] rt2800usb_write_tx_desc+0x18/0xc0 [rt2800usb] *pdpt = 000000002408c001 *pde = 0000000024079067 *pte = 0000000000000000 Oops: 0000 [#1] SMP EIP: 0060:[<f8e06078>] EFLAGS: 00010282 CPU: 0 EIP is at rt2800usb_write_tx_desc+0x18/0xc0 [rt2800usb] EAX: 00000035 EBX: ef2bef10 ECX: 00000000 EDX: d40958a0 ESI: ef1865f8 EDI: ef1865f8 EBP: d4095878 ESP: d409585c DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Call Trace: [<f8da5e85>] rt2x00queue_write_tx_frame+0x155/0x300 [rt2x00lib] [<f8da424c>] rt2x00mac_tx+0x7c/0x370 [rt2x00lib] [<c04882b2>] ? mark_held_locks+0x62/0x90 [<c081f645>] ? _raw_spin_unlock_irqrestore+0x35/0x60 [<c04884ba>] ? trace_hardirqs_on_caller+0x5a/0x170 [<c04885db>] ? trace_hardirqs_on+0xb/0x10 [<f8d618ac>] __ieee80211_tx+0x5c/0x1e0 [mac80211] [<f8d631fc>] ieee80211_tx+0xbc/0xe0 [mac80211] [<f8d63163>] ? ieee80211_tx+0x23/0xe0 [mac80211] [<f8d632e1>] ieee80211_xmit+0xc1/0x200 [mac80211] [<f8d63220>] ? ieee80211_tx+0xe0/0xe0 [mac80211] [<c0487d45>] ? lock_release_holdtime+0x35/0x1b0 [<f8d63986>] ? ieee80211_subif_start_xmit+0x446/0x5f0 [mac80211] [<f8d637dd>] ieee80211_subif_start_xmit+0x29d/0x5f0 [mac80211] [<f8d63924>] ? ieee80211_subif_start_xmit+0x3e4/0x5f0 [mac80211] [<c0760188>] ? sock_setsockopt+0x6a8/0x6f0 [<c0760000>] ? sock_setsockopt+0x520/0x6f0 [<c076daef>] dev_hard_start_xmit+0x2ef/0x650 Oops might happen because we perform parallel putting new entries in a queue (rt2x00queue_write_tx_frame()) and removing entries after finishing transmitting (rt2800usb_work_txdone()). There are cases when _txdone may process an entry that was not fully send and nullify entry->skb . To fix check in _txdone if entry has flags that indicate pending transmission and wait until flags get cleared. Reported-by: Justin Piszcz <jpiszcz@lucidpixels.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-05rt2x00: Initial support for RT5370 USB devices.Gertjan van Wingerde
Add necessary RF chipset define and basic support for these devices. Tested-by: Juan Carlos Garza <juancarlosgarza@gmail.com> Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-02rt2x00: Add autowake support for USB hardwareIvo van Doorn
The USB drivers don't support automatically waking up when in powersaving mode, add a work object which will wakeup the device in time to receive the next beacon. Based on that beacon, we either go back into powersaving mode, or we remain awake to receive the buffered frames for our station. Some part of the code, especially rt2x00lib_find_ie and rt2x00lib_rxdone_check_ps are inspired on the code from carl9170. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-02rt2x00: Optimize TX_STA_FIFO register readingIvo van Doorn
Add recycling functionality to rt2x00usb_register_read_async. When the callback function returns true, resubmit the urb to read the register again. This optimizes the rt2800usb driver when multiple TX status reports are pending in the register, because now we don't need to allocate the rt2x00_async_read_data and urb structure each time. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-02rt2x00: Reduce tx status reading timeoutIvo van Doorn
When no TX status was available, the default timeout of 20ms is a bit high. The frame is highly likely already send out, so the TX status should be available within only a few milliseconds. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Implement get_ringparam callback functionIvo van Doorn
With the get_ringparam callback function we can export ring parameters to ethtool through the mac80211 interface. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Optimize register access in rt2800usbIvo van Doorn
All register reads/writes in rt2800usb were previously done with rt2800_register_read/rt2800_register_write. These however indirectly call rt2x00usb_register_read/rt2x00usb_register_write which adds an additional overhead of at least one call and several move instructions to each register access. Replacing the calls to rt2800_register_read/rt2800_register_write with direct calls to rt2x00usb_register_read/rt2x00usb_register_write gets rid of quite a number of instructions in the drivers hotpaths (IRQ handling and txdone handling). For consistency replace all references to rt2800_register_read/write with the rt2x00usb_register_read/write variants. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Add USB IDs.Gertjan van Wingerde
Add USB IDs that are listed in the latest Ralink Windows and/or Linux drivers. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Allow dynamic addition of PCI/USB IDs.Gertjan van Wingerde
Both USB and PCI drivers allow a system administrator to dynamically add USB/PCI IDs to the device table that a driver supports via the /sys/bus/{usb,pci,pci_express}/drivers/<driver-name>/new_id files. However, for the rt2x00 drivers using this method currently crashes the system with a NULL pointer failure. This is due to the set-up of rt2x00 where the probe functions require a rt2x00_ops structure in the driver_info field of the probed device. As this field is empty for the dynamically added devices this fails for these devices. Fix this by introducing driver-specific probe wrappers that do nothing but calling the bus-specific probe functions with the rt2x00_ops structure as an argument, rather than depending on the driver_info field. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Linksys WUSB600N rev2 is a RT3572 device.Gertjan van Wingerde
Move the USB ID entry from the unknown devices to the list of RT35xx based devices. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2800usb: add timer to handle TX_STA_FIFOJohannes Stezenbach
TX status is reported by the hardware when a packet has been sent (or after TX failed after possible retries), which is some time after the DMA completion. Since the rt2800usb hardware can not signal interrupts we have to use a timer, otherwise the TX status would only be read by the next packet's TX DMA completion, or by the watchdog thread. Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2800usb: handle TX status timeoutsJohannes Stezenbach
The watchdog just triggers rt2800usb_work_txdone() when it detects a TX status timeout, thus rt2800usb_work_txdone() needs to handle this case. Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2800usb: read TX_STA_FIFO asynchronouslyJohannes Stezenbach
Trying to fix the "TX status report missed" warnings by reading the TX_STA_FIFO entries as quickly as possible. The TX_STA_FIFO is too small in hardware, thus reading it only from the workqueue is too slow and entries get lost. Start an asynchronous read of the TX_STA_FIFO directly from the TX URB completion callback (atomic context, thus it cannot use the blocking rt2800_register_read()). If the async read returns a valid FIFO entry, it is pushed into a larger FIFO inside struct rt2x00_dev, until rt2800_txdone() picks it up. A .tx_dma_done callback is added to struct rt2x00lib_ops to trigger the async read from the URB completion callback. Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Split rt2x00dev->flagsIvo van Doorn
The number of flags defined for the rt2x00dev->flags field, has been growing over the years. Currently we are approaching the maximum number of bits which are available in the field. A secondary problem, is that one part of the field are initialized only during boot, because the driver requirements are initialized or device requirements are loaded from the EEPROM. In both cases, the flags are fixed and will not change during device operation. The other flags are the device state, and will change frequently. So far this resulted in the fact that for some flags, the atomic bit accessors are used, while for the others the non-atomic variants are used. By splitting the flags up into a "flags" and "cap_flags" we can put all flags which are fixed inside "cap_flags". This field can then be read non-atomically. In the "flags" field we keep the device state, which is going to be read atomically. This adds more room for more flags in the future, and sanitizes the field access methods. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12rt2800usb: Add seven new USB IDsMark Davis
Adds USB IDs for seven previously missing devices. Additionally, all instances of 'Conceptronic' have been replaced by the OEM name. Devices added are.. 0411:01a2 - Buffalo WLI-UC-GNM, RT3070V 0586:341e - ZyXEL NWD2105, RT3070 13b1:002f - Linksys AE1000, RT3572 13b1:0031 - Cisco / Linksys AM10, RT3072 14b2:3c2c - Keebox W150NU / Alpha Networks WUS-N12, RT3070 157e:3013 - TRENDnet TEW-645UB, RT2770+RT2720 15a9:0012 - Airlink AWLL7025 / Gemtek WUBR-208N, RT2870+RT2850 Signed-off-by: Mark Davis <marked86@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-07Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/rtlwifi/efuse.c drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c net/bluetooth/mgmt.c
2011-04-04rt2x00: Add support for the ZyXEL NWD-211AN USBIvo van Doorn
Add new USB ID Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-04rt2x00: Implement tx power temperature compensationHelmut Schaa
rt2800 devices should adjust their tx power in accordance with the eeproms temperature calibration values. Add a new driver callback gain_calibration that is called every 4 seconds. The rt2800 gain calibration routine simply runs the tx power configuration that takes care of calculating the temperature compensation delta. We don't need to synchronize the calls to rt2800_config_txpower as they should all happen from mac80211's single threaded workqueue. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-04rt2x00: Remove DRIVER_SUPPORT_WATCHDOG flagHelmut Schaa
We can simply check if the driver registered the watchdog callback. There's no need to have an additional flag for that. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-29wireless: rt2x00: rt2800usb.c add and identify idsXose Vazquez Perez
taken from staging/rt2860 0x0411,0x016f de37cd49b5a54facef174cf34496919857436e8f MelCo(Buffalo) WLI-UC-G301N 0x050d,0x825b 12840c63b0679f7fab88ea1cc26b52db8b574ce7 Belkin F5D8055 0x050d,0x935a 705059a670f3af2b37695e82de0ee58e75e656ed Belkin F6D4050 v1 0x050d,0x935b 5d92fe3387d086fc2f10426fbdb6b86d6cce5a47 Belkin F6D4050 v2 identifed from ralink driverss 0x0930,0x0a07 RT35xx TOSHIBA 2010_1215_RT3572_Linux_STA_v2.5.0.0.DPO 0x1d4d,0x0011 3072 Pegatron 2011_0107_RT3070_RT3370_Linux_STA_v2.5.0.1_DPO Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-21rt2x00: Add unknown Toshiba devicePeter Lemenkov
Add unknown Toshiba device, mentioned in rt3572sta sources, under CONFIG_RT2800USB_UNKNOWN Signed-off-by: Peter Lemenkov <lemenkov@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-21rt2x00: Add 2L Central Europe BV 8070Peter Lemenkov
Add 2L Central Europe BV 8070 under CONFIG_RT2800USB_UNKNOWN Signed-off-by: Peter Lemenkov <lemenkov@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-21rt2x00: Add Planex Communications, Inc. RT8070Peter Lemenkov
Add Planex Communications, Inc. RT8070 under CONFIG_RT2800USB_UNKNOWN Signed-off-by: Peter Lemenkov <lemenkov@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-21rt2x00: Add rt2870 device idPeter Lemenkov
Add ID for Asus USB-N11 Wi-FI adapter. Tested by me. Signed-off-by: Peter Lemenkov <lemenkov@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-04rt2x00: Optimize TX descriptor handlingHelmut Schaa
HT and no-HT rt2x00 devices use a partly different TX descriptor. Optimize the tx desciptor memory layout by putting the PLCP and HT substructs into a union and introduce a new driver flag to decide which TX desciptor format is used by the device. This saves us the expensive PLCP calculation fOr HT devices and the HT descriptor setup on no-HT devices. Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-31rt2x00: Fix WPA TKIP Michael MIC failures.Gertjan van Wingerde
As reported and found by Johannes Stezenbach: rt2800{pci,usb} do not report the Michael MIC in RXed frames, but do check the Michael MIC in hardware. Therefore we have to report to mac80211 that the received frame does not include the Michael MIC. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-31rt2x00: Remove STATE_RADIO_IRQ_OFF_ISR and STATE_RADIO_IRQ_ON_ISRHelmut Schaa
Remove STATE_RADIO_IRQ_OFF_ISR and STATE_RADIO_IRQ_ON_ISR as they are not used anymore. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-31rt2x00: Refactor beacon code to make use of start- and stop_queueHelmut Schaa
This patch allows to dynamically remove beaconing interfaces without shutting beaconing down on all interfaces. The only place to start and stop beaconing are now the start- and stop_queue callbacks. Hence, we can remove some register writes during interface bring up (config_intf) and only write the correct sync mode to the register there. When multiple beaconing interfaces are present we should enable beaconing as soon as mac80211 enables beaconing on at least one of them. The beacon queue gets stopped when the last beaconing interface was stopped by mac80211. Therefore, introduce another interface counter to keep track ot the number of enabled beaconing interfaces and start or stop the beacon queue accordingly. To allow single interfaces to stop beaconing, add a new driver callback clear_beacon to clear a single interface's beacon without affecting the other interfaces. Don't overload the clear_entry callback for clearing beacons as that would introduce additional overhead (check for each TX queue) into the clear_entry callback which is used on the drivers TX/RX hotpaths. Furthermore, the write beacon callback doesn't need to enable beaconing anymore but since beaconing should be disabled while a new beacon is written or cleared we still disable beacon generation and enable it afterwards again in the driver specific callbacks. However, beacon related interrupts should not be disabled/enabled here, that's solely done from the start- and stop queue callbacks. It would be nice to stop the beacon queue just before the beacon update and enable it afterwards in rt2x00queue itself instead of the current implementation that relies on the driver doing the right thing. However, since start- and stop_queue are mutex protected we cannot use them for atomic beacon updates. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-04rt2x00: Fix panic on frame padding for rt2800 usb devicesIsmael Luceno
Backtrace: rt2800usb_write_tx_data rt2x00queue_write_tx_frame rt2x00mac_tx invoke_tx_handlers __ieee80211_tx ieee80211_tx virt_to_head_page ieee80211_xmit ieee80211_tx_skb ieee80211_scan_work schedule ieee80211_scan_work process_one_work ... It tried to expand the skb past it's end using skb_put. So I replaced it with a call to skb_padto, which takes the issue into account. Signed-off-by: Ismael Luceno <ismael.luceno@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-13rt2x00: Add "flush" queue commandIvo van Doorn
Add a new command to the queue handlers: "flush", this moves the flush() callback from mac80211 into rt2x00queue and adds support for flushing the RX queue as well. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-13rt2x00: Reorganize queue callback functionsIvo van Doorn
As part of the queue refactoring, change the queue callback function names to have 3 different actions: start, kick & stop. We can now also remove the STATE_RADIO_RX_ON/STATE_RADIO_RX_OFF device_state flags, and replace the usage with using the start_queue/stop_queue callback functions. This streamlines the RX queue handling to the similar approach as all other queues. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-13rt2x00: Introduce 3 queue commands in drivers (start, kick, stop).Ivo van Doorn
As part of the queue refactoring, we now introduce 3 queue commands: start, kick, stop. - Start: will enable a queue, for TX this will not mean anything, while for beacons and RX this will update the registers to enable the queue. - Kick: This will kick all pending frames to the hardware. This is needed for the TX queue to push all frames to the HW after the queue has been started - Stop: This will stop the queue in the hardware, and cancel any pending work (So this doesn't mean the queue is empty after a stop!). Move all code from the drivers into the appropriate functions, and link those calls to the old rt2x00lib callback functions (we will fix this later when we refactor the queue control inside rt2x00lib). Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-13rt2x00: trivial: add missing \n on warningsJohannes Stezenbach
Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-13rt2x00: Don't frequently reset beacon interval in AdHoc modeHelmut Schaa
Commit 0204464329c17ba6d293e1899f71223599a0e582 "Check for specific changed flags when updating the erp config" changed the way in which a new beacon interval gets handled. However, due to a bug in rt2800usb and rt2800pci the beacon interval was reset during each scan, thus causing problems in AdHoc mode. Fix this by not cleaning up the beacon interval when killing the beacon queue but just prevent the device from sending out beacons. Reported-by: Wolfgang Kufner <wolfgang.kufner@gmail.com> Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-13rt2x00: Implement get_survey callback for rt2800Helmut Schaa
Implement the get_survey callback to allow user space to read statistics about the current channel condition. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-17rt2x00: Fix rt2800 USB TX Path DMA issueRA-Jay Hung
rt2800usb chips need to add 1~3 bytes zero padding after each 802.11 header & payload, and at the end need to add 4 bytes zero padding whether doing TX bulk aggregation or not, TXINFO_W0_USB_DMA_TX_PKT_LEN in TXINFO must include 1-3 bytes padding after 802.11 header & payload but do not include 4 bytes end zero padding. In rt2800usb_get_tx_data_len do not consider multiple of the USB packet size case, sometimes this will cause USB DMA problem. Signed-off-by: RA-Jay Hung <jay_hung@ralinktech.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-17rt2x00: Remove RT30XX Kconfig variables.Gertjan van Wingerde
Enabling of RT30xx devices via Kconfig variables was introduced when these devices weren't properly supported yet. Now that that they are properly supported and functional, we can remove these Kconfig variables for RT30xx devices and simply enable them whenever rt2800pci and/or rt2800usb is enabled. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-17rt2x00: Add initial support for RT3370/RT3390 devices.Gertjan van Wingerde
Modified from Eddy's patch by adding the RT3370 USB support as well. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Cc: Eddy Tsai <Eddy_Tsai@ralinktech.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-15rt2x00: Add watchdog functions for HW queueIvo van Doorn
Add watchdog functions for managing the Queues inside the hardware. Normally the driver doesn't have much to do with these queues directly, but the Ralink drivers did implement watchdog functions for these. These watchdog functions are not triggered that often, compared to the other watchdog functions, but I have at least seen them trigger once or twice during a long stresstest run. v2: Add extra documentation for register fields Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-15rt2x00: Remove rt2x00lib_toggle_rxIvo van Doorn
As part of the queue refactoring, the rt2x00lib_toggle_rx can be removed and replaced with the call directly to the set_device_state callback function. We can remove the STATE_RADIO_RX_ON_LINK and STATE_RADIO_RX_OFF_LINK, as it was only used for special behavior inside rt2x00lib rather then the drivers. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-15rt2x00: checkpatch.pl error fixes for rt2800usb.cMark Einon
rt2800usb.c:48: ERROR: do not initialise statics to 0 or NULL Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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