| Message ID | 20240829124918.84809-1-iulia.tanasescu@nxp.com |
|---|---|
| Headers | show |
| Series | Add Scan Delegator support for Add Source op | expand |
Hello: This series was applied to bluetooth/bluez.git (master) by Luiz Augusto von Dentz <luiz.von.dentz@intel.com>: On Thu, 29 Aug 2024 15:49:02 +0300 you wrote: > This adds support for the BAP Scan Delegator role to handle the > Add Source command received from a Broadcast Assistant. > > The Broadcast Assistant informs a Scan Delegator about a Broadcaster > by sending a GATT write command for the BASS Broadcast Audio Scan > Control Point characteristic with the "Add Source" opcode. Using > the parameters received through GATT, the Scan Delegator creates > a device for the Broadcaster and probes it with BAP. The BAP plugin > will then perform long-lived PA sync and it will create streams > for each BIS required by the Assistant. The transports can then be > acquired/released, and the Assistant will be notified about each > change in the state of the streams. > > [...] Here is the summary with links: - [BlueZ,v2,01/16] shared/bass: Register ATT disconnect cb https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=38b7dc7d17b4 - [BlueZ,v2,02/16] shared/bass: Make bt_bcast_src private https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=25119b6a72aa - [BlueZ,v2,03/16] shared/bass: Remove io handling https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=8abcfd7028e8 - [BlueZ,v2,04/16] shared/bass: Add support to register cp handlers https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=30c190089ffe - [BlueZ,v2,05/16] shared/bass: Call cp handler for the Add Source cmd https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=0446d1eef9ef - [BlueZ,v2,06/16] bap: Add support for long-lived PA sync https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=b65767c5dab5 - [BlueZ,v2,07/16] bap: Add API for Scan Delegator probe https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=b8530f0d2672 - [BlueZ,v2,08/16] bass: Register cp handler for Add Source cmd https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=4191ff1c4045 - [BlueZ,v2,09/16] shared/bass: Add API to set PA sync state https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=06d20a80249b - [BlueZ,v2,10/16] bass: Add APIs to probe/remove Broadcasters https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=f3a43bd0e4af - [BlueZ,v2,11/16] bap: Probe Broadcasters with BASS https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=ea7b69102434 - [BlueZ,v2,12/16] shared/bass: Add APIs to set/clear BIS sync bits https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=c6278d24d9d2 - [BlueZ,v2,13/16] bass: Register BAP state changed cb https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=a032a570489b - [BlueZ,v2,14/16] shared/bass: Add API to check BIS required for sync https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=7c3821f822f8 - [BlueZ,v2,15/16] bass: Add API to check BIS required for sync https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=df4e11fab68b - [BlueZ,v2,16/16] bap: Create streams for required BISes https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=dfcbc2d3c011 You are awesome, thank you!
This adds support for the BAP Scan Delegator role to handle the Add Source command received from a Broadcast Assistant. The Broadcast Assistant informs a Scan Delegator about a Broadcaster by sending a GATT write command for the BASS Broadcast Audio Scan Control Point characteristic with the "Add Source" opcode. Using the parameters received through GATT, the Scan Delegator creates a device for the Broadcaster and probes it with BAP. The BAP plugin will then perform long-lived PA sync and it will create streams for each BIS required by the Assistant. The transports can then be acquired/released, and the Assistant will be notified about each change in the state of the streams. The bluetoothctl and btmon logs below show an example of this scenario: client/bluetoothctl [bluetooth]# endpoint.register 00001851-0000-1000-8000-00805f9b34fb 0x06 [/local/endpoint/ep0] Auto Accept (yes/no): y [/local/endpoint/ep0] Max Transports (auto/value): a [/local/endpoint/ep0] Locations: 1 [/local/endpoint/ep0] Supported Context (value): 1 [bluetooth]# Endpoint /local/endpoint/ep0 registered [bluetooth]# advertise on [bluetooth]# [NEW] Device 00:60:37:31:7E:3F 00-60-37-31-7E-3F [00-60-37-31-7E-3F]# [NEW] Device 03:E2:C0:11:57:DA 03-E2-C0-11-57-DA [00-60-37-31-7E-3F]# [NEW] Transport /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 [00-60-37-31-7E-3F]# Endpoint: SetConfiguration [00-60-37-31-7E-3F]# Transport /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 [00-60-37-31-7E-3F]# Properties.Device: /org/bluez/hci1/dev_03_E2_C0_11_57_DA [00-60-37-31-7E-3F]# Auto Accepting... [00-60-37-31-7E-3F]# transport.select /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 [00-60-37-31-7E-3F]# [CHG] Transport /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 State: broadcasting [00-60-37-31-7E-3F]# transport.acquire /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 auto acquiring... Transport /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 acquiring [00-60-37-31-7E-3F]# Transport /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 acquiring complete [00-60-37-31-7E-3F]# Acquire successful: fd 8 MTU 40:0 [00-60-37-31-7E-3F]# [CHG] Transport /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 State: active [00-60-37-31-7E-3F]# transport.release /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 [00-60-37-31-7E-3F]# Transport fd disconnected [00-60-37-31-7E-3F]# [CHG] Transport /org/bluez/hci1/dev_03_E2_C0_11_57_DA/bis1/fd0 State: idle [00-60-37-31-7E-3F]# Release successful > ACL Data RX: Handle 0 flags 0x01 dlen 1 ATT: Write Command (0x52) len 23 Handle: 0x0040 Type: Broadcast Audio Scan Control Point (0x2bc7) Data[21]: 0201da5711c0e203001a2d5602ffff010100000000 Opcode: Add Source (0x02) Source_Address_Type: 1 Source_Address: 03:E2:C0:11:57:DA Source_Adv_SID: 0 Broadcast_ID: 0x562d1a PA_Sync_State: Synchronize to PA - PAST not available PA_Interval: 0xffff Num_Subgroups: 1 Subgroup #0: BIS_Sync State: 0x00000001 < HCI Command: LE Periodic Advertising Create Sync (0x08|0x0044) Options: 0x0000 Use advertising SID, Advertiser Address Type and address Reporting initially enabled SID: 0x00 Adv address type: Random (0x01) Adv address: 03:E2:C0:11:57:DA (Non-Resolvable) Skip: 0x0000 Sync timeout: 20000 msec (0x07d0) Sync CTE type: 0x0000 > HCI Event: Command Status (0x0f) plen 4 LE Periodic Advertising Create Sync (0x08|0x0044) ncmd 1 Status: Success (0x00) > HCI Event: LE Meta Event (0x3e) plen 16 LE Periodic Advertising Sync Established (0x0e) Status: Success (0x00) Sync handle: 0 Advertising SID: 0x00 Advertiser address type: Random (0x01) Advertiser address: 03:E2:C0:11:57:DA (Non-Resolvable) Advertiser PHY: LE 2M (0x02) Periodic advertising interval: 10.00 msec (0x0008) Advertiser clock accuracy: 0x07 > HCI Event: LE Meta Event (0x3e) plen 42 LE Periodic Advertising Report (0x0f) Sync handle: 0 TX power: 127 dbm (0x7f) RSSI: -64 dBm (0xc0) CTE Type: No Constant Tone Extension (0xff) Data status: Complete Data length: 0x22 Service Data: Basic Audio Announcement (0x1851) Presetation Delay: 40000 Number of Subgroups: 1 Subgroup #0: Number of BIS(s): 1 Codec: LC3 (0x06) Codec Specific Configuration: #0: len 0x02 type 0x01 Codec Specific Configuration: Sampling Frequency: 16 Khz Codec Specific Configuration: #1: len 0x02 type 0x02 Codec Specific Configuration: Frame Duration: 10 ms (0x01) Codec Specific Configuration: #2: len 0x03 type 0x04 Codec Specific Configuration: Frame Length: 40 (0x0028) Codec Specific Configuration: #3: len 0x05 type 0x03 Codec Specific Configuration: Location: 0x00000001 Codec Specific Configuration: Location: Front Left BIS #0: Index: 1 > HCI Event: LE Meta Event (0x3e) plen 20 LE Broadcast Isochronous Group Info Advertising Report (0x22) Sync Handle: 0x0000 Number BIS: 1 NSE: 3 ISO Interval: 10.00 msec (0x0008) BN: 1 PTO: 1 IRC: 3 Maximum PDU: 40 SDU Interval: 10000 us (0x002710) Maximum SDU: 40 PHY: LE 2M (0x02) Framing: Unframed (0x00) Encryption: 0x00 bluetoothd[4636]: < ACL Data TX: Handle 0 flags 0x00 dlen 29 ATT: Handle Multiple Value Notification (0x23) len 24 Length: 0x0014 Handle: 0x003a Type: Broadcast Receive State (0x2bc8) Data[20]: 0101da5711c0e203001a2d560200010000000000 Source_ID: 1 Source_Address_Type: 1 Source_Address: 03:E2:C0:11:57:DA Source_Adv_SID: 0 Broadcast_ID: 0x562d1a PA_Sync_State: Synchronized to PA BIG_Encryption: Not encrypted Num_Subgroups: 1 Subgroup #0: BIS_Sync State: 0x00000000 < HCI Command: LE Broadcast Isochronous Group Create Sync (0x08|0x006b) BIG Handle: 0x00 BIG Sync Handle: 0x0000 Encryption: Unencrypted (0x00) Broadcast Code[16]: 00000000000000000000000000000000 Maximum Number Subevents: 0x00 Timeout: 20000 ms (0x07d0) Number of BIS: 1 BIS ID: 0x01 > HCI Event: Command Status (0x0f) plen 4 LE Broadcast Isochronous Group Create Sync (0x08|0x006b) ncmd 1 Status: Success (0x00 > HCI Event: LE Meta Event (0x3e) plen 17 LE Broadcast Isochronous Group Sync Estabilished (0x1d) Status: Success (0x00) BIG Handle: 0x00 Transport Latency: 912 us (0x000390) NSE: 3 BN: 1 PTO: 1 IRC: 3 Maximum PDU: 40 ISO Interval: 10.00 msec (0x0008) Connection Handle #0: 10 < HCI Command: LE Setup Isochronous Data Path (0x08|0x006e) plen 13 Handle: 10 Data Path Direction: Output (Controller to Host) (0x01) Data Path: HCI (0x00) Coding Format: Transparent (0x03) Company Codec ID: Ericsson Technology Licensing (0) Vendor Codec ID: 0 Controller Delay: 0 us (0x000000) Codec Configuration Length: 0 Codec Configuration[0]: > HCI Event: Command Complete (0x0e) plen 6 LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1 Status: Success (0x00) Handle: 10 bluetoothd[4636]: < ACL Data TX: Handle 0 flags 0x00 dlen 29 ATT: Handle Multiple Value Notification (0x23) len 24 Length: 0x0014 Handle: 0x003a Type: Broadcast Receive State (0x2bc8) Data[20]: 0101da5711c0e203001a2d560200010100000000 Source_ID: 1 Source_Address_Type: 1 Source_Address: 03:E2:C0:11:57:DA Source_Adv_SID: 0 Broadcast_ID: 0x562d1a PA_Sync_State: Synchronized to PA BIG_Encryption: Not encrypted Num_Subgroups: 1 Subgroup #0: BIS_Sync State: 0x00000001 bluetoothd[4636]: < ACL Data TX: Handle 0 flags 0x00 dlen 29 ATT: Handle Multiple Value Notification (0x23) len 24 Length: 0x0014 Handle: 0x003a Type: Broadcast Receive State (0x2bc8) Data[20]: 0101da5711c0e203001a2d560200010000000000 Source_ID: 1 Source_Address_Type: 1 Source_Address: 03:E2:C0:11:57:DA Source_Adv_SID: 0 Broadcast_ID: 0x562d1a PA_Sync_State: Synchronized to PA BIG_Encryption: Not encrypted Num_Subgroups: 1 Subgroup #0: BIS_Sync State: 0x00000000 < HCI Command: LE Broadcast Isochronous Group Terminate Sync (0x08|0x006c) BIG Handle: 0x00 > HCI Event: Command Complete (0x0e) plen 5 LE Broadcast Isochronous Group Terminate Sync (0x08|0x006c) ncmd 1 Status: Success (0x00) Iulia Tanasescu (16): shared/bass: Register ATT disconnect cb shared/bass: Make bt_bcast_src private shared/bass: Remove io handling shared/bass: Add support to register cp handlers shared/bass: Call cp handler for the Add Source cmd bap: Add support for long-lived PA sync bap: Add API for Scan Delegator probe bass: Register cp handler for Add Source cmd shared/bass: Add API to set PA sync state bass: Add APIs to probe/remove Broadcasters bap: Probe Broadcasters with BASS shared/bass: Add APIs to set/clear BIS sync bits bass: Register BAP state changed cb shared/bass: Add API to check BIS required for sync bass: Add API to check BIS required for sync bap: Create streams for required BISes profiles/audio/bap.c | 124 +++++++-- profiles/audio/bap.h | 1 + profiles/audio/bass.c | 202 +++++++++++++++ profiles/audio/bass.h | 5 + src/shared/bass.c | 587 +++++++++++++++++++----------------------- src/shared/bass.h | 43 +--- 6 files changed, 590 insertions(+), 372 deletions(-) base-commit: 32a0811685c5dd290f1152bef2dfbde3b2848446