Hi Andre,
> Add additional error case to attempt alternative configuration for SCO. Error
> occurs with Intel BT controller where fallback is not attempted as the error
> 0x020 Unsupported LMP Parameter value is not included in the list of errors
status is only 1 octet and not 1.5 octets ;)
> where a retry should be attempted.
> The problem also affects PTS test case TC_HF_ACS_BV_05_I.
>
> See the HCI log below for details:
> < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17
> handle 256 voice setting 0x0060 ptype 0x0380
>> HCI Event: Command Status (0x0f) plen 4
> Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1
>> HCI Event: Max Slots Change (0x1b) plen 3
> handle 256 slots 1
>> HCI Event: Synchronous Connect Complete (0x2c) plen 17
> status 0x20 handle 0 bdaddr 00:80:98:09:0B:19 type eSCO
> Error: Unsupported LMP Parameter Value
> < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17
> handle 256 voice setting 0x0060 ptype 0x0380
>> HCI Event: Command Status (0x0f) plen 4
> Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1
>> HCI Event: Max Slots Change (0x1b) plen 3
> handle 256 slots 5
>> HCI Event: Synchronous Connect Complete (0x2c) plen 17
> status 0x20 handle 0 bdaddr 00:80:98:09:0B:19 type eSCO
> Error: Unsupported LMP Parameter Value
> < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17
> handle 256 voice setting 0x0060 ptype 0x03c8
>> HCI Event: Command Status (0x0f) plen 4
> Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1
>> HCI Event: Max Slots Change (0x1b) plen 3
> handle 256 slots 1
>> HCI Event: Synchronous Connect Complete (0x2c) plen 17
> status 0x00 handle 257 bdaddr 00:80:98:09:0B:19 type eSCO
> Air mode: CVSD
You need to sign off your patches. Do you mind actually including the btmon trace since that is a bit more verbose.
> ---
> net/bluetooth/hci_event.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
> index 5f81245..59e1b45 100644
> --- a/net/bluetooth/hci_event.c
> +++ b/net/bluetooth/hci_event.c
> @@ -2905,6 +2905,7 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
> case 0x1c: /* SCO interval rejected */
> case 0x1a: /* Unsupported Remote Feature */
> case 0x1f: /* Unspecified error */
> + case 0x20: /* Unsupported LMP Parameter value */
> if (conn->out) {
> conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
> (hdev->esco_type & EDR_ESCO_MASK);
Regards
Marcel
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