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path: root/drivers/bluetooth/btmtk.c
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2025-01-15Bluetooth: btmtk: Remove resetting mt7921 before downloading the fwHao Qin
Remove resetting mt7921 before downloading the fw, as it may cause command timeout when performing the reset. Signed-off-by: Hao Qin <hao.qin@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-01-08Bluetooth: btmtk: Fix failed to send func ctrl for MediaTek devices.Chris Lu
Use usb_autopm_get_interface() and usb_autopm_put_interface() in btmtk_usb_shutdown(), it could send func ctrl after enabling autosuspend. Bluetooth: btmtk_usb_hci_wmt_sync() hci0: Execution of wmt command timed out Bluetooth: btmtk_usb_shutdown() hci0: Failed to send wmt func ctrl (-110) Fixes: 5c5e8c52e3ca ("Bluetooth: btmtk: move btusb_mtk_[setup, shutdown] to btmtk.c") Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-12-12Bluetooth: btmtk: avoid UAF in btmtk_process_coredumpThadeu Lima de Souza Cascardo
hci_devcd_append may lead to the release of the skb, so it cannot be accessed once it is called. ================================================================== BUG: KASAN: slab-use-after-free in btmtk_process_coredump+0x2a7/0x2d0 [btmtk] Read of size 4 at addr ffff888033cfabb0 by task kworker/0:3/82 CPU: 0 PID: 82 Comm: kworker/0:3 Tainted: G U 6.6.40-lockdep-03464-g1d8b4eb3060e #1 b0b3c1cc0c842735643fb411799d97921d1f688c Hardware name: Google Yaviks_Ufs/Yaviks_Ufs, BIOS Google_Yaviks_Ufs.15217.552.0 05/07/2024 Workqueue: events btusb_rx_work [btusb] Call Trace: <TASK> dump_stack_lvl+0xfd/0x150 print_report+0x131/0x780 kasan_report+0x177/0x1c0 btmtk_process_coredump+0x2a7/0x2d0 [btmtk 03edd567dd71a65958807c95a65db31d433e1d01] btusb_recv_acl_mtk+0x11c/0x1a0 [btusb 675430d1e87c4f24d0c1f80efe600757a0f32bec] btusb_rx_work+0x9e/0xe0 [btusb 675430d1e87c4f24d0c1f80efe600757a0f32bec] worker_thread+0xe44/0x2cc0 kthread+0x2ff/0x3a0 ret_from_fork+0x51/0x80 ret_from_fork_asm+0x1b/0x30 </TASK> Allocated by task 82: stack_trace_save+0xdc/0x190 kasan_set_track+0x4e/0x80 __kasan_slab_alloc+0x4e/0x60 kmem_cache_alloc+0x19f/0x360 skb_clone+0x132/0xf70 btusb_recv_acl_mtk+0x104/0x1a0 [btusb] btusb_rx_work+0x9e/0xe0 [btusb] worker_thread+0xe44/0x2cc0 kthread+0x2ff/0x3a0 ret_from_fork+0x51/0x80 ret_from_fork_asm+0x1b/0x30 Freed by task 1733: stack_trace_save+0xdc/0x190 kasan_set_track+0x4e/0x80 kasan_save_free_info+0x28/0xb0 ____kasan_slab_free+0xfd/0x170 kmem_cache_free+0x183/0x3f0 hci_devcd_rx+0x91a/0x2060 [bluetooth] worker_thread+0xe44/0x2cc0 kthread+0x2ff/0x3a0 ret_from_fork+0x51/0x80 ret_from_fork_asm+0x1b/0x30 The buggy address belongs to the object at ffff888033cfab40 which belongs to the cache skbuff_head_cache of size 232 The buggy address is located 112 bytes inside of freed 232-byte region [ffff888033cfab40, ffff888033cfac28) The buggy address belongs to the physical page: page:00000000a174ba93 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x33cfa head:00000000a174ba93 order:1 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x4000000000000840(slab|head|zone=1) page_type: 0xffffffff() raw: 4000000000000840 ffff888100848a00 0000000000000000 0000000000000001 raw: 0000000000000000 0000000080190019 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888033cfaa80: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc ffff888033cfab00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb >ffff888033cfab80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888033cfac00: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc ffff888033cfac80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Check if we need to call hci_devcd_complete before calling hci_devcd_append. That requires that we check data->cd_info.cnt >= MTK_COREDUMP_NUM instead of data->cd_info.cnt > MTK_COREDUMP_NUM, as we increment data->cd_info.cnt only once the call to hci_devcd_append succeeds. Fixes: 0b7015132878 ("Bluetooth: btusb: mediatek: add MediaTek devcoredump support") Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btmtk: adjust the position to init iso data anchorChris Lu
MediaTek iso data anchor init should be moved to where MediaTek claims iso data interface. If there is an unexpected BT usb disconnect during setup flow, it will cause a NULL pointer crash issue when releasing iso anchor since the anchor wasn't been init yet. Adjust the position to do iso data anchor init. [ 17.137991] pc : usb_kill_anchored_urbs+0x60/0x168 [ 17.137998] lr : usb_kill_anchored_urbs+0x44/0x168 [ 17.137999] sp : ffffffc0890cb5f0 [ 17.138000] x29: ffffffc0890cb5f0 x28: ffffff80bb6c2e80 [ 17.144081] gpio gpiochip0: registered chardev handle for 1 lines [ 17.148421] x27: 0000000000000000 [ 17.148422] x26: ffffffd301ff4298 x25: 0000000000000003 x24: 00000000000000f0 [ 17.148424] x23: 0000000000000000 x22: 00000000ffffffff x21: 0000000000000001 [ 17.148425] x20: ffffffffffffffd8 x19: ffffff80c0f25560 x18: 0000000000000000 [ 17.148427] x17: ffffffd33864e408 x16: ffffffd33808f7c8 x15: 0000000000200000 [ 17.232789] x14: e0cd73cf80ffffff x13: 50f2137c0a0338c9 x12: 0000000000000001 [ 17.239912] x11: 0000000080150011 x10: 0000000000000002 x9 : 0000000000000001 [ 17.247035] x8 : 0000000000000000 x7 : 0000000000008080 x6 : 8080000000000000 [ 17.254158] x5 : ffffffd33808ebc0 x4 : fffffffe033dcf20 x3 : 0000000080150011 [ 17.261281] x2 : ffffff8087a91400 x1 : 0000000000000000 x0 : ffffff80c0f25588 [ 17.268404] Call trace: [ 17.270841] usb_kill_anchored_urbs+0x60/0x168 [ 17.275274] btusb_mtk_release_iso_intf+0x2c/0xd8 [btusb (HASH:5afe 6)] [ 17.284226] btusb_mtk_disconnect+0x14/0x28 [btusb (HASH:5afe 6)] [ 17.292652] btusb_disconnect+0x70/0x140 [btusb (HASH:5afe 6)] [ 17.300818] usb_unbind_interface+0xc4/0x240 [ 17.305079] device_release_driver_internal+0x18c/0x258 [ 17.310296] device_release_driver+0x1c/0x30 [ 17.314557] bus_remove_device+0x140/0x160 [ 17.318643] device_del+0x1c0/0x330 [ 17.322121] usb_disable_device+0x80/0x180 [ 17.326207] usb_disconnect+0xec/0x300 [ 17.329948] hub_quiesce+0x80/0xd0 [ 17.333339] hub_disconnect+0x44/0x190 [ 17.337078] usb_unbind_interface+0xc4/0x240 [ 17.341337] device_release_driver_internal+0x18c/0x258 [ 17.346551] device_release_driver+0x1c/0x30 [ 17.350810] usb_driver_release_interface+0x70/0x88 [ 17.355677] proc_ioctl+0x13c/0x228 [ 17.359157] proc_ioctl_default+0x50/0x80 [ 17.363155] usbdev_ioctl+0x830/0xd08 [ 17.366808] __arm64_sys_ioctl+0x94/0xd0 [ 17.370723] invoke_syscall+0x6c/0xf8 [ 17.374377] el0_svc_common+0x84/0xe0 [ 17.378030] do_el0_svc+0x20/0x30 [ 17.381334] el0_svc+0x34/0x60 [ 17.384382] el0t_64_sync_handler+0x88/0xf0 [ 17.388554] el0t_64_sync+0x180/0x188 [ 17.392208] Code: f9400677 f100a2f4 54fffea0 d503201f (b8350288) [ 17.398289] ---[ end trace 0000000000000000 ]--- Fixes: ceac1cb0259d ("Bluetooth: btusb: mediatek: add ISO data transmission functions") Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14bluetooth: Fix typos in the commentsYan Zhen
Correctly spelled comments make it easier for the reader to understand the code. Fix typos: 'fragement' ==> 'fragment', 'genration' ==> 'generation', 'funciton' ==> 'function', 'Explitly' ==> 'Explicitly', 'explaination' ==> 'explanation', 'Tranlate' ==> 'Translate', 'immediatelly' ==> 'immediately', 'isntance' ==> 'instance', 'transmittion' ==> 'transmission', 'recevie' ==> 'receive', 'outselves' ==> 'ourselves', 'conrol' ==> 'control'. Signed-off-by: Yan Zhen <yanzhen@vivo.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-10-02move asm/unaligned.h to linux/unaligned.hAl Viro
asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
2024-07-26Bluetooth: btmtk: Fix btmtk.c undefined reference build errorChris Lu
MediaTek moved some usb interface related function to btmtk.c which may cause build failed if BT USB Kconfig wasn't enabled. Fix undefined reference by adding config check. btmtk.c:(.text+0x89c): undefined reference to `usb_alloc_urb' btmtk.c:(.text+0x8e3): undefined reference to `usb_free_urb' btmtk.c:(.text+0x956): undefined reference to `usb_free_urb' btmtk.c:(.text+0xa0e): undefined reference to `usb_anchor_urb' btmtk.c:(.text+0xb43): undefined reference to `usb_autopm_get_interface' btmtk.c:(.text+0xb7e): undefined reference to `usb_autopm_put_interface' btmtk.c:(.text+0xf70): undefined reference to `usb_disable_autosuspend' btmtk.c:(.text+0x133a): undefined reference to `usb_control_msg' Fixes: d019930b0049 ("Bluetooth: btmtk: move btusb_mtk_hci_wmt_sync to btmtk.c") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202407091928.AH0aGZnx-lkp@intel.com/ Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-26Bluetooth: btmtk: Fix kernel crash when entering btmtk_usb_suspendChris Lu
If MediaTek's Bluetooth setup is unsuccessful, a NULL pointer issue occur when the system is suspended and the anchored kill function is called. To avoid this, add protection to prevent executing the anchored kill function if the setup is unsuccessful. [ 6.922106] Hardware name: Acer Tomato (rev2) board (DT) [ 6.922114] Workqueue: pm pm_runtime_work [ 6.922132] pstate: 804000c9 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 6.922147] pc : usb_kill_anchored_urbs+0x6c/0x1e0 [ 6.922164] lr : usb_kill_anchored_urbs+0x48/0x1e0 [ 6.922181] sp : ffff800080903b60 [ 6.922187] x29: ffff800080903b60 x28: ffff2c7b85c32b80 x27: ffff2c7bbb370930 [ 6.922211] x26: 00000000000f4240 x25: 00000000ffffffff x24: ffffd49ece2dcb48 [ 6.922255] x20: ffffffffffffffd8 x19: 0000000000000000 x18: 0000000000000006 [ 6.922276] x17: 6531656337386238 x16: 3632373862333863 x15: ffff800080903480 [ 6.922297] x14: 0000000000000000 x13: 303278302f303178 x12: ffffd49ecf090e30 [ 6.922318] x11: 0000000000000001 x10: 0000000000000001 x9 : ffffd49ecd2c5bb4 [ 6.922339] x8 : c0000000ffffdfff x7 : ffffd49ecefe0db8 x6 : 00000000000affa8 [ 6.922360] x5 : ffff2c7bbb35dd48 x4 : 0000000000000000 x3 : 0000000000000000 [ 6.922379] x2 : 0000000000000000 x1 : 0000000000000003 x0 : ffffffffffffffd8 [ 6.922400] Call trace: [ 6.922405] usb_kill_anchored_urbs+0x6c/0x1e0 [ 6.922422] btmtk_usb_suspend+0x20/0x38 [btmtk 5f200a97badbdfda4266773fee49acfc8e0224d5] [ 6.922444] btusb_suspend+0xd0/0x210 [btusb 0bfbf19a87ff406c83b87268b87ce1e80e9a829b] [ 6.922469] usb_suspend_both+0x90/0x288 [ 6.922487] usb_runtime_suspend+0x3c/0xa8 [ 6.922507] __rpm_callback+0x50/0x1f0 [ 6.922523] rpm_callback+0x70/0x88 [ 6.922538] rpm_suspend+0xe4/0x5a0 [ 6.922553] pm_runtime_work+0xd4/0xe0 [ 6.922569] process_one_work+0x18c/0x440 [ 6.922588] worker_thread+0x314/0x428 [ 6.922606] kthread+0x128/0x138 [ 6.922621] ret_from_fork+0x10/0x20 [ 6.922644] Code: f100a274 54000520 d503201f d100a260 (b8370000) [ 6.922654] ---[ end trace 0000000000000000 ]--- Fixes: ceac1cb0259d ("Bluetooth: btusb: mediatek: add ISO data transmission functions") Signed-off-by: Chris Lu <chris.lu@mediatek.com> Reported-by: NĂ­colas F. R. A. Prado <nfraprado@collabora.com> #KernelCI Tested-by: NĂ­colas F. R. A. Prado <nfraprado@collabora.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-15Bluetooth: btusb: mediatek: add ISO data transmission functionsChris Lu
This patch implements functions for ISO data send and receive in btusb driver for MediaTek's controller. MediaTek defines a specific interrupt endpoint for ISO data transmissin because the characteristics of interrupt endpoint are similar to the application of ISO data which can support guaranteed transmissin bandwidth, enough maximum data length and error checking mechanism. Driver sets up ISO interface and endpoints in btusb_mtk_setup and clears the setup in btusb_mtk_shutdown. These flow can't move to btmtk.c due to btusb_driver is only defined in btusb.c when claiming/relaesing interface. ISO packet anchor stops when driver suspending and resubmit interrupt urb for ISO data when driver resuming. Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-15Bluetooth: btmtk: move btusb_recv_acl_mtk to btmtk.cChris Lu
Move btusb_recv_acl_mtk from btusb.c to btmtk.c which holds vendor specific stuff and would make btusb.c clean. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-15Bluetooth: btmtk: move btusb_mtk_[setup, shutdown] to btmtk.cChris Lu
Move btusb_mtk_[setup, shutdown] and related function from btusb.c to btmtk.c which holds vendor specific stuff and would make btusb.c clean. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-15Bluetooth: btmtk: move btusb_mtk_hci_wmt_sync to btmtk.cChris Lu
Move btusb_mtk_hci_wmt_sync from btusb.c to btmtk.c which holds vendor specific stuff and would make btusb.c clean. Add usb.h header to btmtksdio.c/btmtkuart.c for usb related element defined in btmtk.h Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-15Bluetooth: btmtk: rename btmediatek_dataChris Lu
Rename btmediatek_data to have a consistent prefix throughout the driver. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-07-14Bluetooth: btmtk: add the function to get the fw nameSean Wang
Include a shared function to get the firmware name, to prevent repeating code for similar chipsets. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-04-24Bluetooth: btusb: mediatek: Fix double free of skb in coredumpSean Wang
hci_devcd_append() would free the skb on error so the caller don't have to free it again otherwise it would cause the double free of skb. Fixes: 0b7015132878 ("Bluetooth: btusb: mediatek: add MediaTek devcoredump support") Reported-by : Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06Bluetooth: btmtk: Add MODULE_FIRMWARE() for MT7922Takashi Iwai
Since dracut refers to the module info for defining the required firmware files and btmtk driver doesn't provide the firmware info for MT7922, the generate initrd misses the firmware, resulting in the broken Bluetooth. This patch simply adds the MODULE_FIRMWARE() for the missing entry for covering that. Link: https://bugzilla.suse.com/show_bug.cgi?id=1214133 Signed-off-by: Takashi Iwai <tiwai@suse.de> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06Bluetooth: btusb: Fix memory leakLuiz Augusto von Dentz
This checks if CONFIG_DEV_COREDUMP is enabled before attempting to clone the skb and also make sure btmtk_process_coredump frees the skb passed following the same logic. Fixes: 0b7015132878 ("Bluetooth: btusb: mediatek: add MediaTek devcoredump support") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-08-11Bluetooth: btmtk: Fix kernel crash when processing coredumpChris Lu
There may be a potential kernel crash risk if 'skb->len - MTK_COREDUMP_END_LEN' value is less than 0 when doing memcmp in btmtk_process_coredump(). Check the value is valid before doing memcmp. [215.021695] Unable to handle kernel paging request at virtual address ffffff939fffd3c5 [215.021781] Mem abort info: [215.021805] ESR = 0x96000005 [215.021833] EC = 0x25: DABT (current EL), IL = 32 bits [215.021861] SET = 0, FnV = 0 [215.021875] EA = 0, S1PTW = 0 [215.021886] Data abort info: [215.021899] ISV = 0, ISS = 0x00000005 [215.021912] CM = 0, WnR = 0 [215.021929] swapper pgtable: 4k pages, 39-bit VAs, pgdp=00000000410de000 [215.021943] [ffffff939fffd3c5] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [215.021979] Internal error: Oops: 96000005 [#1] PREEMPT SMP [215.022496] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.186#3 (HASH:ad23 4) [215.022511] Hardware name: MediaTek Tomato board (DT) [215.022530] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO BTYPE=--) [215.022556] pc : __pi_memcmp+0xd0/0x1b8 [215.022579] lr : btmtk_process_coredump+0xb0/0x5f8 [btmtk] [215.022593] sp : ffffffc010003d40 [215.022607] x29: ffffffc010003d40 x28: 0000000000000006 [215.022633] x27: ffffffda696350c0 x26: 0000000000000002 [215.022659] x25: 00000000000003ff x24: ffffff9360cca804 [215.022685] x23: 0000000000000000 x22: ffffff9365638500 [215.022710] x21: ffffff9365638700 x20: 0000000000000000 [215.022736] x19: ffffff936002e000 x18: 0000000000000000 [215.022761] x17: 0000000000000180 x16: ffffffda6881b8b4 [215.022787] x15: 0000000000000001 x14: 0000000000002d00 [215.022812] x13: 0000000000060000 x12: 0000000000000181 [215.022837] x11: 0000000000000006 x10: fffffffffffffffd [215.022862] x9 : 0000000000000006 x8 : 0000000000000003 [215.022887] x7 : 0000000000000000 x6 : 0000000000000000 [215.022913] x5 : ffffff93656387b8 x4 : 0000000000000000 [215.022938] x3 : ffffffc010003c18 x2 : 0000000000000006 [215.022963] x1 : ffffffda09d4124a x0 : ffffff939fffd3c5 [215.022989] Call trace: [215.023012] __pi_memcmp+0xd0/0x1b8 [215.023053] btusb_recv_acl_mtk+0x64/0x90 [btusb (HASH:dc6b 5)] [215.023087] btusb_recv_bulk+0x118/0x170 [btusb (HASH:dc6b 5)] [215.023121] btusb_bulk_complete+0x8c/0x148 [btusb (HASH:dc6b 5)] [215.023144] __usb_hcd_giveback_urb+0xbc/0x148 [215.023164] usb_giveback_urb_bh+0xb4/0x190 [215.023184] tasklet_action_common+0x98/0x1a0 [215.023201] tasklet_action+0x2c/0x38 [215.023220] __do_softirq+0xe0/0x38c [215.023241] invoke_softirq+0x34/0x6c [215.023258] irq_exit+0x6c/0xb0 [215.023279] __handle_domain_irq+0x98/0xd4 [215.023296] gic_handle_irq+0x5c/0x11c [215.023313] el1_irq+0xd0/0x180 [215.023332] cpuidle_enter_state+0xac/0x338 [215.023349] cpuidle_enter+0x40/0x70 [215.023366] do_idle+0x150/0x278 [215.023384] cpu_startup_entry+0x2c/0x58 [215.023401] rest_init+0xdc/0xec [215.023419] arch_call_rest_init+0x18/0x24 [215.023435] start_kernel+0x334/0x400 [215.023460] Code: 91002129 eb09010a 9a89810b cb0b0042 (38401403) [215.023478] ---[ end trace 28668fd20c7a90cd ] Fixes: 2822cd0173ad ("Bluetooth: btusb: mediatek: add MediaTek devcoredump support") Signed-off-by: Chris Lu <chris.lu@mediatek.com> Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-08-11Bluetooth: btusb: mediatek: add MediaTek devcoredump supportJing Cai
This patch implement function .coredump() and dmp_hdr() in btusb driver for MediaTek controller. FW core dump was triggered by FW specific event to show something unexpected happened in the controller. The driver would be responsible for collecting and uploading the device core dump pieces in hci driver using core dump API. Once we finished the whole process, the driver would reset the controller to recover the kind of fatal error. Co-developed-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Chris Lu <chris.lu@mediatek.com> Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Jing Cai <jing.cai@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-08-11Bluetooth: btmtk: introduce btmtk reset workJing Cai
Introduce btmtk_reset_work which can be called whenever the firmware abort, HCI command timeout, other fatal error happen. Co-developed-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Chris Lu <chris.lu@mediatek.com> Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Jing Cai <jing.cai@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-08-11Bluetooth: btmtk: add printing firmware informationChris Lu
Add printing firmware information part when driver loading firmware that user can get mediatek bluetooth information. Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-08-11Bluetooth: btusb: Add support Mediatek MT7925Peter Tsao
This patch is added support Mediatek MT7925. 1. The firmware location of MT7925 will set to /lib/firmware/mediatek/mt7925 2. Add Mediatek private data in hdev to record the device for handle MT7925 flow. 3. Use the recoreded dev_id to condition chip reset flow. The information in /sys/kernel/debug/usb/devices about the MT7925U Bluetooth device is listed as the below T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 27 Spd=480 MxCh= 0 D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0e8d ProdID=7925 Rev= 1.00 S: Manufacturer=MediaTek Inc. S: Product=Wireless_Device S: SerialNumber=000000000 C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=100mA A: FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 5 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=125us E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=8f(I) Atr=03(Int.) MxPS= 2 Ivl=125us I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none) E: Ad=8a(I) Atr=03(Int.) MxPS= 64 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 64 Ivl=125us I: If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none) E: Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us I:* If#= 3 Alt= 0 #EPs= 9 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=08(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=86(I) Atr=03(Int.) MxPS= 2 Ivl=125us Signed-off-by: Peter Tsao <peter.tsao@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2022-03-18Bluetooth: btmtkuart: rely on BT_MTK moduleSean Wang
Rely on btmtk module to reduce duplicated code Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-12-07Bluetooth: btusb: Return error code when getting patch status failedMark Chen
If there are failure cases in getting patch status, it should return the error code (-EIO). Fixes: fc342c4dc4087 ("Bluetooth: btusb: Add protocol support for MediaTek MT7921U USB devices") Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Mark Chen <mark-yw.chen@mediatek.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-10-25Bluetooth: mediatek: add BT_MTK moduleSean Wang
Add BT_MTK module that is a preliminary patch to introduce mt7921s support to share the logic betweem btusb and btmtksdio. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>