---
plugins/bluetooth.c | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 71 insertions(+), 0 deletions(-)
diff --git a/plugins/bluetooth.c b/plugins/bluetooth.c
index b90852d..3560440 100644
--- a/plugins/bluetooth.c
+++ b/plugins/bluetooth.c
@@ -79,6 +79,8 @@ struct hfp_data {
char *path;
guint16 r_features;
guint watch;
+ int mic_gain;
+ int mic_pending;
};
void bluetooth_create_path(const char *dev_addr, const char *adapter_addr,
@@ -268,6 +270,37 @@ fail:
};
}
+static void emulator_vgm_cb(struct ofono_emulator *em,
+ struct ofono_emulator_request *req, void *userdata)
+{
+ struct hfp_data *hfp = userdata;
+ struct ofono_error result;
+ int val;
+
+ switch (ofono_emulator_request_get_type(req)) {
+ case OFONO_EMULATOR_REQUEST_TYPE_SET:
+ if (!ofono_emulator_request_next_number(req, &val))
+ goto fail;
+
+ if (val < 0 && val > 15)
+ goto fail;
+
+ if (hfp->mic_pending != -1)
+ ofono_error("Receiving AT+VGM while processing one");
+
+ hfp->mic_pending = val;
+ audio_transport_set_property(hfp, "MicrophoneGain",
+ DBUS_TYPE_UINT16, &val);
+ break;
+
+ default:
+fail:
+ result.error = 0;
+ result.type = OFONO_ERROR_TYPE_FAILURE;
+ ofono_emulator_send_final(em, &result);
+ };
+}
+
static gboolean audio_property_changed(DBusConnection *connection,
DBusMessage *message, void *user_data)
{
@@ -303,6 +336,41 @@ static gboolean audio_property_changed(DBusConnection
*connection,
sprintf(buf, "+BSIR: %d", value);
ofono_emulator_send_unsolicited(hfp->em, buf);
+ } else if (g_str_equal(property, "MicrophoneGain") == TRUE) {
+ DBusMessageIter variant;
+ int value;
+
+ if (!(hfp->r_features & HFP_HF_FEATURE_REMOTE_VOLUME_CONTROL))
+ return TRUE;
+
+ if (!dbus_message_iter_next(&iter))
+ return TRUE;
+
+ if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
+ return TRUE;
+
+ dbus_message_iter_recurse(&iter, &variant);
+
+ if (dbus_message_iter_get_arg_type(&variant) !=
+ DBUS_TYPE_UINT16)
+ return TRUE;
+
+ dbus_message_iter_get_basic(&variant, &value);
+
+ /* Send unsolicited +VGM only if :
+ * - the value has changed
+ * - and this is not a side effect of AT+VGM
+ * But, if we receive a value change while waiting for another
+ * pending change, we may have to send +VGM for other changes
+ * (multiple AT+VGM received) to keep mic gain in sync
+ */
+ if (hfp->mic_pending != value && hfp->mic_gain != value) {
+ sprintf(buf, "+VGM: %d", value);
+ ofono_emulator_send_unsolicited(hfp->em, buf);
+ hfp->mic_pending = -1;
+ } else if (hfp->mic_pending == value)
+ hfp->mic_pending = -1;
+ hfp->mic_gain = value;
}
return TRUE;
@@ -315,6 +383,7 @@ void bluetooth_free_audio_management(void *data)
DBG("");
ofono_emulator_remove_handler(hfp->em, "+NREC");
+ ofono_emulator_remove_handler(hfp->em, "+VGM");
g_dbus_remove_watch(connection, hfp->watch);
@@ -333,8 +402,10 @@ void *bluetooth_set_audio_management(void *em, const char
*path,
hfp->em = em;
hfp->path = g_strdup(path);
hfp->r_features = features;
+ hfp->mic_pending = -1;
ofono_emulator_add_handler(em, "+NREC", emulator_nrec_cb, hfp, NULL);
+ ofono_emulator_add_handler(em, "+VGM", emulator_vgm_cb, hfp, NULL);
hfp->watch = g_dbus_add_signal_watch(connection, NULL, path,
BLUEZ_TRANSPORT_INTERFACE,
--
1.7.1
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