hfp: Add CNUM query to handsfree interface for subscriber number

drivers/hfpmodem/handsfree.c

@@ -43,6 +43,8 @@
 #include "hfp.h"
 #include "slc.h"
 
+#define OFONO_HANDSFREE_CNUM_SERVICE_VOICE 4
+
 static const char *binp_prefix[] = { "+BINP:", NULL };
 static const char *bvra_prefix[] = { "+BVRA:", NULL };
 
@@ -125,6 +127,91 @@ static void ciev_notify(GAtResult *result, gpointer user_data)
 	ofono_handsfree_battchg_notify(hf, value);
 }
 
+static void cnum_query_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct cb_data *cbd = user_data;
+	ofono_handsfree_cnum_query_cb_t cb = cbd->cb;
+	GAtResultIter iter;
+	struct ofono_phone_number *list = NULL;
+	int num = 0;
+	struct ofono_error error;
+
+	decode_at_error(&error, g_at_result_final_response(result));
+
+	if (!ok)
+		goto out;
+
+	g_at_result_iter_init(&iter, result);
+
+	while (g_at_result_iter_next(&iter, "+CNUM:"))
+		num++;
+
+	if (num == 0)
+		goto out;
+
+	list = g_new(struct ofono_phone_number, num);
+
+	g_at_result_iter_init(&iter, result);
+
+	for (num = 0; g_at_result_iter_next(&iter, "+CNUM:"); ) {
+		const char *number;
+		int len;
+		int service;
+		int type;
+
+		list[num].number[0] = '\0';
+		list[num].type = 129;
+
+		if (!g_at_result_iter_skip_next(&iter))
+			continue;
+
+		if (!g_at_result_iter_next_string(&iter, &number))
+			continue;
+
+		if (!g_at_result_iter_next_number(&iter, &type))
+			continue;
+
+		if (!g_at_result_iter_skip_next(&iter))
+			continue;
+
+		if (!g_at_result_iter_next_number(&iter, &service))
+			continue;
+
+		if (service == OFONO_HANDSFREE_CNUM_SERVICE_VOICE) {
+			len = strlen(number);
+			if (len > OFONO_MAX_PHONE_NUMBER_LENGTH)
+				len = OFONO_MAX_PHONE_NUMBER_LENGTH;
+			strncpy(list[num].number, number, len);
+			list[num].number[len] = '\0';
+			list[num].type = type;
+
+			DBG("cnum_notify:%s", list[num].number);
+			num++;
+		}
+	}
+
+out:
+	cb(&error, num, list, cbd->data);
+
+	g_free(list);
+
+}
+
+static void at_cnum_query(struct ofono_handsfree *hf,
+			ofono_handsfree_cnum_query_cb_t cb, void *data)
+{
+	struct hf_data *hd = ofono_handsfree_get_data(hf);
+	struct cb_data *cbd = cb_data_new(cb, data);
+
+	if (g_at_chat_send(hd->chat, "AT+CNUM", NULL,
+					cnum_query_cb, cbd, g_free) > 0)
+		return;
+
+	g_free(cbd);
+
+	CALLBACK_WITH_FAILURE(cb, -1, NULL, data);
+}
+
 static gboolean hfp_handsfree_register(gpointer user_data)
 {
 	struct ofono_handsfree *hf = user_data;
@@ -283,6 +370,7 @@ static struct ofono_handsfree_driver driver = {
 	.name			= "hfpmodem",
 	.probe			= hfp_handsfree_probe,
 	.remove			= hfp_handsfree_remove,
+	.cnum_query		= at_cnum_query,
 	.request_phone_number	= hfp_request_phone_number,
 	.voice_recognition	= hfp_voice_recognition,
 	.disable_nrec		= hfp_disable_nrec,