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bluez5: add quirk for LC3-24kHz for HFP

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MT7925 fails to setup a SCO connection that results to working LC3-24kHz
audio. Other controllers (Intel etc) appear to work OK.

Add quirk for disabling this codec, and disable it for this Mediatek
controller.

(cherry picked from commit 84e6845aa6)
This commit is contained in:
Pauli Virtanen 2026-04-16 22:51:51 +03:00
parent b2028a03f0
commit bb6199214d
4 changed files with 17 additions and 1 deletions
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7
spa/plugins/bluez5/backend-native.c
View file

@ -904,7 +904,7 @@ static bool device_supports_codec(struct impl *backend, struct spa_bt_device *de
{
int res;
bool alt6_ok = true, alt1_ok = true;
bool msbc_alt6_ok = true, msbc_alt1_ok = true;
bool msbc_alt6_ok = true, msbc_alt1_ok = true, lc3_a127_ok = true;
uint32_t bt_features;
if (device->adapter == NULL)
@ -913,6 +913,7 @@ static bool device_supports_codec(struct impl *backend, struct spa_bt_device *de
if (backend->quirks && spa_bt_quirks_get_features(backend->quirks, device->adapter, device, &bt_features) == 0) {
msbc_alt1_ok = (bt_features & (SPA_BT_FEATURE_MSBC_ALT1 | SPA_BT_FEATURE_MSBC_ALT1_RTL));
msbc_alt6_ok = (bt_features & SPA_BT_FEATURE_MSBC);
lc3_a127_ok = (bt_features & SPA_BT_FEATURE_LC3_A127);
}
switch (codec) {
@ -922,6 +923,10 @@ static bool device_supports_codec(struct impl *backend, struct spa_bt_device *de
alt1_ok = msbc_alt1_ok;
alt6_ok = msbc_alt6_ok;
break;
case SPA_BLUETOOTH_AUDIO_CODEC_LC3_A127:
alt1_ok = false;
alt6_ok = lc3_a127_ok;
break;
case SPA_BLUETOOTH_AUDIO_CODEC_LC3_SWB:
default:
/* LC3-SWB has same transport requirements as msbc.