[PATCH 01/14] android/handsfree-client: Add handle start/stop vr

[Lukasz Rymanowski <lukasz.rymanowski@xxxxxxxxx>]

This patch implements start/stop voice recogniction command handling.
It also introduce find_default_device which returns connected device.

Note that for now we support only one device as this is HAL limitation
---
 android/handsfree-client.c | 106 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 102 insertions(+), 4 deletions(-)

diff --git a/android/handsfree-client.c b/android/handsfree-client.c
index c576ae8..d8b0bb1 100644
--- a/android/handsfree-client.c
+++ b/android/handsfree-client.c
@@ -135,6 +135,11 @@ static uint32_t hfp_hf_record_id = 0;
 static struct queue *devices = NULL;
 static GIOChannel *hfp_hf_server = NULL;
 
+static struct device *find_default_device(void)
+{
+	return queue_peek_head(devices);
+}
+
 static bool match_by_bdaddr(const void *data, const void *user_data)
 {
 	const bdaddr_t *addr1 = data;
@@ -293,18 +298,95 @@ static void handle_disconnect_audio(const void *buf, uint16_t len)
 					HAL_STATUS_UNSUPPORTED);
 }
 
+static void cmd_complete_cb(enum hfp_result result, enum hfp_error cme_err,
+							void *user_data)
+{
+	struct hal_ev_hf_client_command_complete ev;
+
+	DBG("");
+
+	memset(&ev, 0, sizeof(ev));
+
+	switch (result) {
+	case HFP_RESULT_OK:
+		ev.type = HAL_HF_CLIENT_CMD_COMP_OK;
+		break;
+	case HFP_RESULT_NO_CARRIER:
+		ev.type = HAL_HF_CLIENT_CMD_COMP_ERR_NO_CARRIER;
+		break;
+	case HFP_RESULT_ERROR:
+		ev.type = HAL_HF_CLIENT_CMD_COMP_ERR;
+		break;
+	case HFP_RESULT_BUSY:
+		ev.type = HAL_HF_CLIENT_CMD_COMP_ERR_BUSY;
+		break;
+	case HFP_RESULT_NO_ANSWER:
+		ev.type = HAL_HF_CLIENT_CMD_COMP_ERR_NO_ANSWER;
+		break;
+	case HFP_RESULT_DELAYED:
+		ev.type = HAL_HF_CLIENT_CMD_COMP_ERR_DELAYED;
+		break;
+	case HFP_RESULT_BLACKLISTED:
+		ev.type = HAL_HF_CLIENT_CMD_COMP_ERR_BACKLISTED;
+		break;
+	case HFP_RESULT_CME_ERROR:
+		ev.type = HAL_HF_CLIENT_CMD_COMP_ERR_CME;
+		ev.cme = cme_err;
+		break;
+	default:
+		error("hf-client: Unknown error code %d", result);
+		ev.type = HAL_HF_CLIENT_CMD_COMP_ERR;
+		break;
+	}
+
+	ipc_send_notif(hal_ipc, HAL_SERVICE_ID_HANDSFREE_CLIENT,
+			HAL_EV_CLIENT_COMMAND_COMPLETE, sizeof(ev), &ev);
+}
+
 static void handle_start_vr(const void *buf, uint16_t len)
 {
-	DBG("Not Implemented");
+	struct device *dev;
+	uint8_t status;
+
+	DBG("");
+
+	dev = find_default_device();
+	if (!dev) {
+		status = HAL_STATUS_FAILED;
+		goto done;
+	}
+
+	if (hfp_hf_send_command(dev->hf, cmd_complete_cb, NULL, "AT+BVRA=1"))
+		status = HAL_STATUS_SUCCESS;
+	else
+		status = HAL_STATUS_FAILED;
+
+done:
 	ipc_send_rsp(hal_ipc, HAL_SERVICE_ID_HANDSFREE_CLIENT,
-			HAL_OP_HF_CLIENT_START_VR, HAL_STATUS_UNSUPPORTED);
+			HAL_OP_HF_CLIENT_START_VR, status);
 }
 
 static void handle_stop_vr(const void *buf, uint16_t len)
 {
-	DBG("Not Implemented");
+	struct device *dev;
+	uint8_t status;
+
+	DBG("");
+
+	dev = find_default_device();
+	if (!dev) {
+		status = HAL_STATUS_FAILED;
+		goto done;
+	}
+
+	if (hfp_hf_send_command(dev->hf, cmd_complete_cb, NULL, "AT+BVRA=0"))
+		status = HAL_STATUS_SUCCESS;
+	else
+		status = HAL_STATUS_FAILED;
+
+done:
 	ipc_send_rsp(hal_ipc, HAL_SERVICE_ID_HANDSFREE_CLIENT,
-			HAL_OP_HF_CLIENT_STOP_VR, HAL_STATUS_UNSUPPORTED);
+			HAL_OP_HF_CLIENT_STOP_VR, status);
 }
 
 static void handle_volume_control(const void *buf, uint16_t len)
@@ -447,6 +529,20 @@ static void get_local_codecs_string(struct device *dev, char *buf,
 	}
 }
 
+static void bvra_cb(struct hfp_context *context, void *user_data)
+{
+	struct hal_ev_hf_client_vr_state ev;
+	uint32_t val;
+
+	if (!hfp_context_get_number(context, &val))
+		return;
+
+	ev.state = val ? HAL_HF_CLIENT_VR_STARTED : HAL_HF_CLIENT_VR_STOPPED;
+
+	ipc_send_notif(hal_ipc, HAL_SERVICE_ID_HANDSFREE_CLIENT,
+				HAL_EV_HF_CLIENT_VR_STATE, sizeof(ev), &ev);
+}
+
 static void slc_completed(struct device *dev)
 {
 	DBG("");
@@ -457,6 +553,8 @@ static void slc_completed(struct device *dev)
 	 * TODO: Notify Android with indicators, register unsolicited result
 	 * handlers
 	 */
+
+	hfp_hf_register(dev->hf, bvra_cb, "+BRVA", dev, NULL);
 }
 
 static void slc_chld_cb(struct hfp_context *context, void *user_data)
-- 
1.8.4

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