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hfp: implement (e)SCO link setting fallbacks for HF

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This commit is contained in:
Matthias Ringwald 2015-11-27 23:24:49 +01:00
parent 51506e16d2
commit 97a9051bb0
1 changed files with 15 additions and 2 deletions
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17
src/hfp_hf.c
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@ -443,8 +443,7 @@ static int hfp_hf_run_for_audio_connection(hfp_connection_t * context){
if (context->establish_audio_connection){
context->state = HFP_W4_SCO_CONNECTED;
context->establish_audio_connection = 0;
// only support HV1 + HV3 to avoid eSCO
hci_send_cmd(&hci_setup_synchronous_connection, context->con_handle, 8000, 8000, 0xFFFF, hci_get_sco_voice_setting(), 0xFF, 0x03c5);
hfp_setup_synchronous_connection(context->con_handle, context->link_setting);
return 1;
}
@ -501,9 +500,23 @@ static void hfp_run_for_context(hfp_connection_t * context){
break;
}
}
static void hfp_init_link_settings(hfp_connection_t * context){
// determine highest possible link setting
context->link_setting = HFP_LINK_SETTINGS_D1;
if (hci_remote_eSCO_supported(context->con_handle)){
context->link_setting = HFP_LINK_SETTINGS_S3;
if ((hfp_supported_features & (1<<HFP_HFSF_ESCO_S4))
&& (context->remote_supported_features & (1<<HFP_AGSF_ESCO_S4))){
context->link_setting = HFP_LINK_SETTINGS_S4;
}
}
}
static void hfp_ag_slc_established(hfp_connection_t * context){
context->state = HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED;
hfp_emit_event(hfp_callback, HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED, 0);
hfp_init_link_settings(context);
}
static void hfp_hf_switch_on_ok(hfp_connection_t *context){