grahamnaylorccfe
commented
4 years ago For info, I launched bluealsa using: bluealsa -p a2dp-source -p a2dp-sink -p hfp-hf -p hfp-ag -p hsp-hs -p hsp-ag -p hfp-ofono to try and cover all bases!
With the Broadcom I reproducibly get the following monitor output when trying to record: RAW Open: bluealsa (privileged) version 2.22 {0x0003} 20.876873 @ RAW Close: bluealsa {0x0003} 20.877322 < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 #2037 [hci0] 20.877799 Handle: 12 Transmit bandwidth: 8000 Receive bandwidth: 8000 Max latency: 10 Setting: 0x0060 Input Coding: Linear Input Data Format: 2's complement Input Sample Size: 16-bit
of bits padding at MSB: 0
Air Coding Format: CVSD
Retransmission effort: Optimize for power consumption (0x01)
Packet type: 0x0380
3-EV3 may not be used
2-EV5 may not be used
3-EV5 may not be usedHCI Event: Command Status (0x0f) plen 4 #2038 [hci0] 20.883304 Setup Synchronous Connection (0x01|0x0028) ncmd 1 Status: Success (0x00) HCI Event: Synchronous Connect Complete (0x2c) plen 17 #2039 [hci0] 20.912228 Status: Success (0x00) Handle: 6 Address: 50:19:01:90:7F:39 (OUI 50-19-01) Link type: eSCO (0x02) Transmission interval: 0x0c Retransmission window: 0x02 RX packet length: 60 TX packet length: 60 Air mode: CVSD (0x02) < SCO Data TX: Handle 6 flags 0x00 dlen 48 #2040 [hci0] 20.916940 59 ed 6a ea 89 e8 59 e7 64 e5 20 e4 f3 e3 07 e4 Y.j...Y.d. ..... 01 e4 f0 e3 68 e4 49 e5 e3 e6 85 e8 93 e9 55 eb ....h.I.......U. 4d ed 3c ef 81 f1 b7 f3 42 f5 99 f6 b3 f8 e8 fa M.<.....B....... < SCO Data TX: Handle 6 flags 0x00 dlen 48 #2041 [hci0] 20.920276 15 fd 6c ff 39 00 48 01 5d 03 11 05 2f 06 40 07 ..l.9.H.].../.@. 6e 08 f9 08 db 09 fe 09 14 0a cf 0a 2c 0b b9 0a n...........,... 79 0a f1 0a 45 0a d6 09 24 0a e1 09 42 09 e8 08 y...E...$...B... < HCI Command: Disconnect (0x01|0x0006) plen 3 #2042 [hci0] 27.260320 Handle: 6 Reason: Remote User Terminated Connection (0x13) HCI Event: Command Status (0x0f) plen 4 #2043 [hci0] 27.263242 Disconnect (0x01|0x0006) ncmd 1 Status: Success (0x00) HCI Event: Disconnect Complete (0x05) plen 4 #2044 [hci0] 27.267227 Status: Success (0x00) Handle: 6 Reason: Connection Terminated By Local Host (0x16)
It seems to be sending two blocks of 48 bytes but then maybe some buffer becomes full?
borine
arkq
I have an embedded A9 coretex ARM running on a Zynq chip with an Ubuntu like Petalinux OS. I managed to install the dependencies and bluez-alsa downloaded from master yesterday (21/6/2020, so v2.1 with bluez 5.48). I have similar issues as issue #262 in that aplay works fine on both a2dp and sco (eg with aplay -D bluealsa:SRV=org.bluealsa,DEV=50:19:01:90:7F:39,PROFILE=sco sample.wav ), however when trying to record (you see I need the mic input as I am tring to build an SDR) I get no sound a recorded file of just 44 bytes (using arecord -D bluealsa:SRV=org.bluealsa,DEV=50:19:01:90:7F:39,PROFILE=sco recorded.wav). I have tried with an Asus USB BT dongle with the Broadsom chip (BCM20702A1 (001.002.014)) and get the same problem with another BT dongle using a CSR chip. For the Broadcom I have the .hcd driver in /lib/firmware/brcm/ , though it does seem that there are two in circulation (BCM20702A1-0a5c-21e8.hcd) and also BCM20702A1-0b05-17cb.hcd, though I have put both in for good measure (both 34kB). No errors in dmesg and all seems OK, but nothing on record.
@borine has helpfully suggested using btmon --sco to diagnose issues on the sco channel during an attempted record, but don't know what to make of it. Any ideas?:
@ RAW Open: bluealsa (privileged) version 2.22 {0x0003} 137.389523 @ RAW Close: bluealsa {0x0003} 137.389976 < HCI Command: Exit Sniff Mode (0x02|0x0004) plen 2 #2040 [hci0] 137.390455 Handle: 12
It looked as though it started streaming, but then stopped as if it was going in to a brick wall.
cheers G