linux-stable.git/drivers/bluetooth/btqca.c, branch linux-5.7.y

Bluetooth: btqca: Fix the NVM baudrate tag offcet for wcn3991

2020-03-01T13:47:35+00:00

The baudrate set byte of wcn3991 in the NVM tag is byte 1, not byte 2.
This patch will set correct byte for wcn3991.

Signed-off-by: Rocky Liao 
Signed-off-by: Marcel Holtmann

Bluetooth: hci_qca: Add support for Qualcomm Bluetooth SoC WCN3991

2019-11-09T02:26:47+00:00

This patch add support for WCN3991 i.e. current values and fw download
support.

Signed-off-by: Balakrishna Godavarthi 
Signed-off-by: Marcel Holtmann

Bluetooth: btqca: Rename ROME specific variables to generic variables

2019-11-09T02:26:47+00:00

Variables which are named with rome are commonly used for all the
BT SoC's. Instead of continuing further, renamed them to generic
name.

Signed-off-by: Balakrishna Godavarthi 
Signed-off-by: Marcel Holtmann

Bluetooth: hci_qca: wait for Pre shutdown complete event before sending the Power off pulse

2019-09-05T15:27:22+00:00

When SoC receives pre shut down command, it share the same
with other COEX shared clients. So SoC needs a short time
after sending VS pre shutdown command before turning off
the regulators and sending the power off pulse. Along with
short delay, needs to wait for command complete event for
Pre shutdown VS command

Signed-off-by: Harish Bandi 
Reviewed-by: Balakrishna Godavarthi 
Signed-off-by: Marcel Holtmann

Bluetooth: btqca: Reset download type to default

2019-08-12T17:07:15+00:00

This patch will reset the download flag to default value
before retrieving the download mode type.

Fixes: 32646db8cc28 ("Bluetooth: btqca: inject command complete event during fw download")
Signed-off-by: Balakrishna Godavarthi 
Tested-by: Claire Chang 
Reviewed-by: Claire Chang 
Signed-off-by: Marcel Holtmann

Bluetooth: btqca: release_firmware after qca_inject_cmd_complete_event

2019-08-12T16:36:09+00:00

commit 32646db8cc28 ("Bluetooth: btqca: inject command complete event
during fw download") added qca_inject_cmd_complete_event() for certain
qualcomm chips. However, qca_download_firmware() will return without
calling release_firmware() in this case.

This leads to a memory leak like the following found by kmemleak:

unreferenced object 0xfffffff3868a5880 (size 128):
  comm "kworker/u17:5", pid 347, jiffies 4294676481 (age 312.157s)
  hex dump (first 32 bytes):
    ac fd 00 00 00 00 00 00 00 d0 7e 17 80 ff ff ff  ..........~.....
    00 00 00 00 00 00 00 00 00 59 8a 86 f3 ff ff ff  .........Y......
  backtrace:
    [<00000000978ce31d>] kmem_cache_alloc_trace+0x194/0x298
    [<000000006ea0398c>] _request_firmware+0x74/0x4e4
    [<000000004da31ca0>] request_firmware+0x44/0x64
    [<0000000094572996>] qca_download_firmware+0x74/0x6e4 [btqca]
    [<00000000b24d615a>] qca_uart_setup+0xc0/0x2b0 [btqca]
    [<00000000364a6d5a>] qca_setup+0x204/0x570 [hci_uart]
    [<000000006be1a544>] hci_uart_setup+0xa8/0x148 [hci_uart]
    [<00000000d64c0f4f>] hci_dev_do_open+0x144/0x530 [bluetooth]
    [<00000000f69f5110>] hci_power_on+0x84/0x288 [bluetooth]
    [<00000000d4151583>] process_one_work+0x210/0x420
    [<000000003cf3dcfb>] worker_thread+0x2c4/0x3e4
    [<000000007ccaf055>] kthread+0x124/0x134
    [<00000000bef1f723>] ret_from_fork+0x10/0x18
    [<00000000c36ee3dd>] 0xffffffffffffffff
unreferenced object 0xfffffff37b16de00 (size 128):
  comm "kworker/u17:5", pid 347, jiffies 4294676873 (age 311.766s)
  hex dump (first 32 bytes):
    da 07 00 00 00 00 00 00 00 50 ff 0b 80 ff ff ff  .........P......
    00 00 00 00 00 00 00 00 00 dd 16 7b f3 ff ff ff  ...........{....
  backtrace:
    [<00000000978ce31d>] kmem_cache_alloc_trace+0x194/0x298
    [<000000006ea0398c>] _request_firmware+0x74/0x4e4
    [<000000004da31ca0>] request_firmware+0x44/0x64
    [<0000000094572996>] qca_download_firmware+0x74/0x6e4 [btqca]
    [<000000000cde20a9>] qca_uart_setup+0x144/0x2b0 [btqca]
    [<00000000364a6d5a>] qca_setup+0x204/0x570 [hci_uart]
    [<000000006be1a544>] hci_uart_setup+0xa8/0x148 [hci_uart]
    [<00000000d64c0f4f>] hci_dev_do_open+0x144/0x530 [bluetooth]
    [<00000000f69f5110>] hci_power_on+0x84/0x288 [bluetooth]
    [<00000000d4151583>] process_one_work+0x210/0x420
    [<000000003cf3dcfb>] worker_thread+0x2c4/0x3e4
    [<000000007ccaf055>] kthread+0x124/0x134
    [<00000000bef1f723>] ret_from_fork+0x10/0x18
    [<00000000c36ee3dd>] 0xffffffffffffffff

Make sure release_firmware() is called aftre
qca_inject_cmd_complete_event() to avoid the memory leak.

Fixes: 32646db8cc28 ("Bluetooth: btqca: inject command complete event during fw download")
Signed-off-by: Claire Chang 
Reviewed-by: Balakrishna Godavarthi 
Signed-off-by: Marcel Holtmann

Bluetooth: hci_qca: Send VS pre shutdown command.

2019-08-12T16:23:50+00:00

WCN399x chips are coex chips, it needs a VS pre shutdown
command while turning off the BT. So that chip can inform
BT is OFF to other active clients.

Signed-off-by: Harish Bandi 
Signed-off-by: Marcel Holtmann

Bluetooth: btqca: Use correct byte format for opcode of injected command

2019-08-12T16:23:50+00:00

The opcode of the command injected by commit 32646db8cc28 ("Bluetooth:
btqca: inject command complete event during fw download") uses the CPU
byte format, however it should always be little endian. In practice it
shouldn't really matter, since all we need is an opcode != 0, but still
let's do things correctly and keep sparse happy.

Fixes: 32646db8cc28 ("Bluetooth: btqca: inject command complete event during fw download")
Reported-by: kbuild test robot 
Signed-off-by: Matthias Kaehlcke 
Signed-off-by: Marcel Holtmann

Bluetooth: btqca: Add a short delay before downloading the NVM

2019-08-12T16:23:49+00:00

On WCN3990 downloading the NVM sometimes fails with a "TLV response
size mismatch" error:

[  174.949955] Bluetooth: btqca.c:qca_download_firmware() hci0: QCA Downloading qca/crnv21.bin
[  174.958718] Bluetooth: btqca.c:qca_tlv_send_segment() hci0: QCA TLV response size mismatch

It seems the controller needs a short time after downloading the
firmware before it is ready for the NVM. A delay as short as 1 ms
seems sufficient, make it 10 ms just in case. No event is received
during the delay, hence we don't just silently drop an extra event.

Signed-off-by: Matthias Kaehlcke 
Signed-off-by: Marcel Holtmann

Bluetooth: hci_qca: Load customized NVM based on the device property

2019-07-06T10:55:39+00:00

QCA BTSOC NVM is a customized firmware file and different vendors may
want to have different BTSOC configuration (e.g. Configure SCO over PCM
or I2S, Setting Tx power, etc.) via this file. This patch will allow
vendors to download different NVM firmware file by reading a device
property "firmware-name".

Signed-off-by: Rocky Liao 
Tested-by: Harish Bandi 
Signed-off-by: Marcel Holtmann