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spa: bluez: backend-native: Prevent HSP/HFP connection in both directions

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The HSP and HFP profiles expect that a device function only as an audio
gateway or as an headset, which is the normal behavior for a headset,
a hands-free car unit or a phone.

In case of a desktop, it can perform both functionalities, but there's
no interest to get them at the same time as the bidirectional audio
is already supported.
This commit is contained in:
Frédéric Danis 2025-12-16 13:29:18 +01:00 • committed by Wim Taymans
parent f468529084
commit e15e50c5ee
1 changed files with 37 additions and 0 deletions
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37
spa/plugins/bluez5/backend-native.c
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@ -3401,6 +3401,43 @@ static DBusHandlerResult profile_new_connection(DBusConnection *conn, DBusMessag
}
spa_bt_device_add_profile(d, profile);
/* Prevent to connect HSP/HFP in both directions, i.e. HS->AG and AG->HS.
* This may only occur when connecting to a device which provides both
* HS and AG which should not be the case with headsets and phones. */
spa_list_for_each(rfcomm, &backend->rfcomm_list, link) {
if (spa_streq(rfcomm->device->address, d->address) &&
spa_streq(rfcomm->device->adapter->address, d->adapter->address)) {
bool connected = false;
switch (profile) {
case SPA_BT_PROFILE_HFP_HF:
if (rfcomm->profile == SPA_BT_PROFILE_HFP_AG)
connected = true;
break;
case SPA_BT_PROFILE_HFP_AG:
if (rfcomm->profile == SPA_BT_PROFILE_HFP_HF)
connected = true;
break;
case SPA_BT_PROFILE_HSP_HS:
if (rfcomm->profile == SPA_BT_PROFILE_HSP_AG)
connected = true;
break;
case SPA_BT_PROFILE_HSP_AG:
if (rfcomm->profile == SPA_BT_PROFILE_HSP_HS)
connected = true;
break;
default:
spa_log_warn(backend->log, "Unsupported profile: %s", handler);
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
if (connected) {
spa_log_debug(backend->log, "Already connected in the opposite direction");
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
}
}
dbus_message_iter_next(&it);
dbus_message_iter_get_basic(&it, &fd);