[PATCH 1/3] Add hfp_list_calls to get current call list

[Zhenhua Zhang]

Use AT+CLCC to get current call list.
---
 drivers/hfpmodem/voicecall.c |   59 +++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 58 insertions(+), 1 deletions(-)

diff --git a/drivers/hfpmodem/voicecall.c b/drivers/hfpmodem/voicecall.c
index 2cd14b5..ee89ee0 100644
--- a/drivers/hfpmodem/voicecall.c
+++ b/drivers/hfpmodem/voicecall.c
@@ -400,6 +400,63 @@ static void hfp_hangup(struct ofono_voicecall *vc,
 	hfp_template("AT+CHUP", vc, generic_cb, 0x3f, cb, data);
 }
 
+static void list_calls_callback(gboolean ok, GAtResult *result,
+			gpointer user_data)
+{
+	struct cb_data *cbd = user_data;
+	struct ofono_voicecall *vc = cbd->user;
+	struct voicecall_data *vd = ofono_voicecall_get_data(vc);
+	ofono_call_list_cb_t cb = cbd->cb;
+	GSList *l;
+	struct ofono_call *list;
+	struct ofono_error error;
+	int num;
+
+	dump_response("clcc_poll_cb", ok, result);
+	decode_at_error(&error, g_at_result_final_response(result));
+
+	if (!ok)
+		return;
+
+	clcc_poll_cb(ok, result, vc);
+
+	list = g_try_new0(struct ofono_call, g_slist_length(vd->calls));
+
+	if (!list) {
+		CALLBACK_WITH_FAILURE(cb, 0, NULL, cbd->data);
+		return;
+	}
+
+	for (num = 0, l = vd->calls; l; l = l->next, num++)
+		memcpy(&list[num], l->data, sizeof(struct ofono_call));
+
+	cb(&error, num,  list, cbd->data);
+
+	g_free(list);
+}
+
+static void hfp_list_calls(struct ofono_voicecall *vc, ofono_call_list_cb_t cb,
+				void *data)
+{
+	struct voicecall_data *vd = ofono_voicecall_get_data(vc);
+	struct cb_data *cbd = cb_data_new(cb, data);
+
+	if (!cbd)
+		goto error;
+
+	cbd->user = vc;
+
+	if (g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
+				list_calls_callback, cbd, g_free) > 0)
+		return;
+
+error:
+	if (cbd)
+		g_free(cbd);
+
+	CALLBACK_WITH_FAILURE(cb, 0, NULL, data);
+}
+
 static void hfp_hold_all_active(struct ofono_voicecall *vc,
 				ofono_voicecall_cb_t cb, void *data)
 {
@@ -952,7 +1009,7 @@ static struct ofono_voicecall_driver driver = {
 	.dial			= hfp_dial,
 	.answer			= hfp_answer,
 	.hangup			= hfp_hangup,
-	.list_calls		= NULL,
+	.list_calls		= hfp_list_calls,
 	.hold_all_active	= hfp_hold_all_active,
 	.release_all_held	= hfp_release_all_held,
 	.set_udub		= hfp_set_udub,
-- 
1.6.5.2