This is a note to let you know that I've just added the patch titled Bluetooth: Fix alt settings for incoming SCO with transparent coding format to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: bluetooth-fix-alt-settings-for-incoming-sco-with-tra.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit d9af2c22f5004b98aadbf63ebfaf8b6498619bd1 Author: Kiran K <kiran.k@xxxxxxxxx> Date: Thu Apr 8 22:31:59 2021 +0530 Bluetooth: Fix alt settings for incoming SCO with transparent coding format [ Upstream commit 06d213d8a89a6f55b708422c3dda2b22add10748 ] For incoming SCO connection with transparent coding format, alt setting of CVSD is getting applied instead of Transparent. Before fix: < HCI Command: Accept Synchron.. (0x01|0x0029) plen 21 #2196 [hci0] 321.342548 Address: 1C:CC:D6:E2:EA:80 (Xiaomi Communications Co Ltd) Transmit bandwidth: 8000 Receive bandwidth: 8000 Max latency: 13 Setting: 0x0003 Input Coding: Linear Input Data Format: 1's complement Input Sample Size: 8-bit # of bits padding at MSB: 0 Air Coding Format: Transparent Data Retransmission effort: Optimize for link quality (0x02) Packet type: 0x003f HV1 may be used HV2 may be used HV3 may be used EV3 may be used EV4 may be used EV5 may be used > HCI Event: Command Status (0x0f) plen 4 #2197 [hci0] 321.343585 Accept Synchronous Connection Request (0x01|0x0029) ncmd 1 Status: Success (0x00) > HCI Event: Synchronous Connect Comp.. (0x2c) plen 17 #2198 [hci0] 321.351666 Status: Success (0x00) Handle: 257 Address: 1C:CC:D6:E2:EA:80 (Xiaomi Communications Co Ltd) Link type: eSCO (0x02) Transmission interval: 0x0c Retransmission window: 0x04 RX packet length: 60 TX packet length: 60 Air mode: Transparent (0x03) ........ > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2336 [hci0] 321.383655 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #2337 [hci0] 321.389558 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2338 [hci0] 321.393615 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2339 [hci0] 321.393618 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2340 [hci0] 321.393618 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #2341 [hci0] 321.397070 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2342 [hci0] 321.403622 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2343 [hci0] 321.403625 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2344 [hci0] 321.403625 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2345 [hci0] 321.403625 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #2346 [hci0] 321.404569 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #2347 [hci0] 321.412091 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2348 [hci0] 321.413626 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2349 [hci0] 321.413630 > SCO Data RX: Handle 257 flags 0x00 dlen 48 #2350 [hci0] 321.413630 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #2351 [hci0] 321.419674 After fix: < HCI Command: Accept Synchronou.. (0x01|0x0029) plen 21 #309 [hci0] 49.439693 Address: 1C:CC:D6:E2:EA:80 (Xiaomi Communications Co Ltd) Transmit bandwidth: 8000 Receive bandwidth: 8000 Max latency: 13 Setting: 0x0003 Input Coding: Linear Input Data Format: 1's complement Input Sample Size: 8-bit # of bits padding at MSB: 0 Air Coding Format: Transparent Data Retransmission effort: Optimize for link quality (0x02) Packet type: 0x003f HV1 may be used HV2 may be used HV3 may be used EV3 may be used EV4 may be used EV5 may be used > HCI Event: Command Status (0x0f) plen 4 #310 [hci0] 49.440308 Accept Synchronous Connection Request (0x01|0x0029) ncmd 1 Status: Success (0x00) > HCI Event: Synchronous Connect Complete (0x2c) plen 17 #311 [hci0] 49.449308 Status: Success (0x00) Handle: 257 Address: 1C:CC:D6:E2:EA:80 (Xiaomi Communications Co Ltd) Link type: eSCO (0x02) Transmission interval: 0x0c Retransmission window: 0x04 RX packet length: 60 TX packet length: 60 Air mode: Transparent (0x03) < SCO Data TX: Handle 257 flags 0x00 dlen 60 #312 [hci0] 49.450421 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #313 [hci0] 49.457927 > HCI Event: Max Slots Change (0x1b) plen 3 #314 [hci0] 49.460345 Handle: 256 Max slots: 5 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #315 [hci0] 49.465453 > SCO Data RX: Handle 257 flags 0x00 dlen 60 #316 [hci0] 49.470502 > SCO Data RX: Handle 257 flags 0x00 dlen 60 #317 [hci0] 49.470519 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #318 [hci0] 49.472996 > SCO Data RX: Handle 257 flags 0x00 dlen 60 #319 [hci0] 49.480412 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #320 [hci0] 49.480492 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #321 [hci0] 49.487989 > SCO Data RX: Handle 257 flags 0x00 dlen 60 #322 [hci0] 49.490303 < SCO Data TX: Handle 257 flags 0x00 dlen 60 #323 [hci0] 49.495496 > SCO Data RX: Handle 257 flags 0x00 dlen 60 #324 [hci0] 49.500304 > SCO Data RX: Handle 257 flags 0x00 dlen 60 #325 [hci0] 49.500311 Signed-off-by: Kiran K <kiran.k@xxxxxxxxx> Signed-off-by: Lokendra Singh <lokendra.singh@xxxxxxxxx> Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index d62ac4b73709..e59ae24a8f17 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -4360,12 +4360,12 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode); - switch (conn->setting & SCO_AIRMODE_MASK) { - case SCO_AIRMODE_CVSD: + switch (ev->air_mode) { + case 0x02: if (hdev->notify) hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD); break; - case SCO_AIRMODE_TRANSP: + case 0x03: if (hdev->notify) hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP); break;