Hi Marcel,
yes - i have tried commands like
bccmd -t BCSP -d /dev/ttyS1 psload 8811.psr
before hciattach and it fails the same way.
(most commands work fine until i do a psload -r or warmreset command)
Is there any way to reinitialize an attached hci device or something
like "hcidetach"?
best regards,
Tobi
On 05/22/2018 05:19 PM, Marcel Holtmann wrote:
Hi Tobi,
i have problem connecting bluez (currently im using 5.49 from debian:unstable and linux-4.14) to my CSR8811 (connected via 2 wire UART).
hciattach works and i can use some bccmd commands but when i do a warmreset (to activate my pskey changes) bluez seems unable to get a valid
reply from the chip :-(
here my commands:
root@BLOKS ~# hciattach -s 38400 /dev/ttyS1 bcsp 38400 noflow
Device setup complete
root@BLOKS ~# hciconfig
hci0: Type: Primary Bus: UART
BD Address: 00:02:5B:00:A5:A5 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING
RX bytes:1314 acl:0 sco:0 events:41 errors:0
TX bytes:2583 acl:0 sco:0 commands:40 errors:0
root@BLOKS ~# bccmd -t HCI buildname
Build name: gem_5hci_rom_bt4.1_gemA12_1407301204_dspm_encr128 2014-07-30
root@BLOKS ~# bccmd -t HCI psload -s 0 /data/8811.psr
Loading PSKEY_BDADDR ... done
Loading PSKEY_ANA_FREQ ... done
root@BLOKS ~# bccmd -t HCI warmreset
root@BLOKS ~# hciconfig
hci0: Type: Primary Bus: UART
BD Address: 00:02:5B:00:A5:A5 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING
RX bytes:1639 acl:0 sco:0 events:47 errors:0
TX bytes:3587 acl:0 sco:0 commands:76 errors:0
root@BLOKS ~# bccmd -t HCI buildname
Can't read version info for hci0: Connection timed out (110)
root@BLOKS ~# bccmd -t HCI psload -s 0 /data/8811.psr
Can't read version info for hci0: Connection timed out (110)
root@BLOKS ~#
I am not surprised this fails since hciattach and BCSP is not really working well when you have to restart the controller. Have you tried to use the bcsp transport of bccmd tool? And only when that finished run hciattach.
Otherwise the BCSP support really needs to be convert into something that would work with btattach. I have not seen many using BCSP these days. Most switched to 3-Wire UART instead.
Regards
Marcel
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