linux.git/drivers/bluetooth/btrtl.c, branch v5.9 Linux kernel source tree Bluetooth: btrtl: Add support for RTL8761B 2020-04-11T05:58:23+00:00 Ziqian SUN (Zamir) sztsian@gmail.com 2020-04-11T01:34:27+00:00 04896832c94aae4842100cafb8d3a73e1bed3a45 Add new compatible device RTL8761B. RTL8761B is a USB Bluetooth device, with support of BLE and BR/EDR. The USB info is T: Bus=03 Lev=04 Prnt=04 Port=00 Cnt=01 Dev#= 29 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0bda ProdID=8771 Rev= 2.00 S: Manufacturer=Realtek S: Product=Bluetooth Radio S: SerialNumber=XXXXXXXXXXXX C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms Signed-off-by: Ziqian SUN (Zamir) <sztsian@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
Add new compatible device RTL8761B. RTL8761B is a USB Bluetooth device,
with support of BLE and BR/EDR. The USB info is

T:  Bus=03 Lev=04 Prnt=04 Port=00 Cnt=01 Dev#= 29 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0bda ProdID=8771 Rev= 2.00
S:  Manufacturer=Realtek
S:  Product=Bluetooth Radio
S:  SerialNumber=XXXXXXXXXXXX
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Ziqian SUN (Zamir) <sztsian@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Bluetooth: hci_h5: btrtl: Add support for RTL8822C 2020-02-18T08:22:22+00:00 Max Chou max.chou@realtek.com 2020-02-17T08:14:55+00:00 848fc6164158d697b70b390a2db5019663713f47 Add new compatible and FW loading support for RTL8822C. Signed-off-by: Max Chou <max.chou@realtek.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
Add new compatible and FW loading support for RTL8822C.

Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Bluetooth: btrtl: Use kvmalloc for FW allocations 2020-01-24T18:57:53+00:00 Maxim Mikityanskiy maxtram95@gmail.com 2020-01-24T17:15:35+00:00 268d3636dfb22254324774de1f8875174b3be064 Currently, kmemdup is applied to the firmware data, and it invokes kmalloc under the hood. The firmware size and patch_length are big (more than PAGE_SIZE), and on some low-end systems (like ASUS E202SA) kmalloc may fail to allocate a contiguous chunk under high memory usage and fragmentation: Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000a lmp_ver=06 lmp_subver=8821 Bluetooth: hci0: RTL: rom_version status=0 version=1 Bluetooth: hci0: RTL: loading rtl_bt/rtl8821a_fw.bin kworker/u9:2: page allocation failure: order:4, mode:0x40cc0(GFP_KERNEL|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0 <stack trace follows> As firmware load happens on each resume, Bluetooth will stop working after several iterations, when the kernel fails to allocate an order-4 page. This patch replaces kmemdup with kvmalloc+memcpy. It's not required to have a contiguous chunk here, because it's not mapped to the device directly. Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
Currently, kmemdup is applied to the firmware data, and it invokes
kmalloc under the hood. The firmware size and patch_length are big (more
than PAGE_SIZE), and on some low-end systems (like ASUS E202SA) kmalloc
may fail to allocate a contiguous chunk under high memory usage and
fragmentation:

Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000a lmp_ver=06 lmp_subver=8821
Bluetooth: hci0: RTL: rom_version status=0 version=1
Bluetooth: hci0: RTL: loading rtl_bt/rtl8821a_fw.bin
kworker/u9:2: page allocation failure: order:4, mode:0x40cc0(GFP_KERNEL|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0
<stack trace follows>

As firmware load happens on each resume, Bluetooth will stop working
after several iterations, when the kernel fails to allocate an order-4
page.

This patch replaces kmemdup with kvmalloc+memcpy. It's not required to
have a contiguous chunk here, because it's not mapped to the device
directly.

Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Bluetooth: btrtl: remove unneeded semicolon 2019-10-26T05:23:30+00:00 YueHaibing yuehaibing@huawei.com 2019-10-25T09:26:53+00:00 515d6798fec9632fffb79261c511eb166f773273 Remove unneeded semicolon. This is detected by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
Remove unneeded semicolon.
This is detected by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Bluetooth: btrtl: Fix an issue for the incorrect error return code. 2019-10-16T17:26:40+00:00 Max Chou max.chou@realtek.com 2019-09-18T08:56:41+00:00 d171dfb621240ee6c77cb354c0767b6dd41f83fe It does not need the '-' for PTR_ERR(skb) because PTR_ERR(skb) will return the negative value during errors. Signed-off-by: Max Chou <max.chou@realtek.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
It does not need the '-' for PTR_ERR(skb) because PTR_ERR(skb) will
return the negative value during errors.

Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Bluetooth: btrtl: Fix an issue that failing to download the FW which size is over 32K bytes 2019-09-05T15:27:32+00:00 Max Chou max.chou@realtek.com 2019-09-05T05:21:57+00:00 cf0d9a705d81a0f581865cefe0880f29589dd06f Fix the issue that when the FW size is 32K+, it will fail for the download process because of the incorrect index. When firmware patch length is over 32K, "dl_cmd->index" may >= 0x80. It will be thought as "data end" that download process will not complete. However, driver should recount the index from 1. Signed-off-by: Max Chou <max.chou@realtek.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
Fix the issue that when the FW size is 32K+, it will fail for the download
process because of the incorrect index.

When firmware patch length is over 32K, "dl_cmd->index" may >= 0x80. It
will be thought as "data end" that download process will not complete.
However, driver should recount the index from 1.

Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Bluetooth: btrtl: Remove trailing newline from calls to rtl_dev macros 2019-09-05T15:27:22+00:00 Alex Lu alex_lu@realsil.com.cn 2019-08-31T08:46:11+00:00 f1300c0340872d7d02617f439433d70c6f47700f These printing macros already add a trailing newline, so drop these unnecessary additional newlines. Signed-off-by: Alex Lu <alex_lu@realsil.com.cn> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
These printing macros already add a trailing newline, so drop these
unnecessary additional newlines.

Signed-off-by: Alex Lu <alex_lu@realsil.com.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Bluetooth: btrtl: Remove redundant prefix from calls to rtl_dev macros 2019-09-05T15:27:22+00:00 Alex Lu alex_lu@realsil.com.cn 2019-08-31T08:41:13+00:00 d182215d2fb9e58a7637efc937fa11dc15cf7a84 the rtl: or RTL: prefix in the string is pointless. The rtl_dev_* macros already does that. Signed-off-by: Alex Lu <alex_lu@realsil.com.cn> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
the rtl: or RTL: prefix in the string is pointless. The rtl_dev_* macros
already does that.

Signed-off-by: Alex Lu <alex_lu@realsil.com.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Bluetooth: btrtl: Add firmware version print 2019-09-05T15:27:22+00:00 Alex Lu alex_lu@realsil.com.cn 2019-08-31T08:36:02+00:00 240b64a83165dde816664b50900aa12f1db92359 This patch is used to print fw version for debug convenience Signed-off-by: Alex Lu <alex_lu@realsil.com.cn> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
This patch is used to print fw version for debug convenience

Signed-off-by: Alex Lu <alex_lu@realsil.com.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Bluetooth: btrtl: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY 2019-09-05T15:27:22+00:00 Alex Lu alex_lu@realsil.com.cn 2019-08-30T12:02:14+00:00 65251e2e0ad379d89f5784626b8c40ff62220d8b Realtek Bluetooth controllers can do both LE scan and BR/EDR inquiry at once, need to set HCI_QUIRK_SIMULTANEOUS_DISCOVERY quirk. Signed-off-by: Alex Lu <alex_lu@realsil.com.cn> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> 
Realtek Bluetooth controllers can do both LE scan and BR/EDR inquiry
at once, need to set HCI_QUIRK_SIMULTANEOUS_DISCOVERY quirk.

Signed-off-by: Alex Lu <alex_lu@realsil.com.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>