voicecall: Fix strange GTA04 modem CLCC behavior

diff --git a/drivers/atmodem/voicecall.c b/drivers/atmodem/voicecall.c
index d07052c..e27eb47 100644 (file)
--- a/drivers/atmodem/voicecall.c
+++ b/drivers/atmodem/voicecall.c
@@ -145,8 +145,23 @@ static void clcc_poll_cb(gboolean ok, GAtResult *result, gpointer user_data)
        GSList *n, *o;
        struct ofono_call *nc, *oc;
        gboolean poll_again = FALSE;
+       struct ofono_error error;
+
+       decode_at_error(&error, g_at_result_final_response(result));
 
        if (!ok) {
+               /*
+                * On certain Option GTM modems CLCC polling can fail
+                * with a CME ERROR: 100.  It seems to be safe to ignore
+                * it and continue polling anyway
+                */
+               if (vd->vendor == OFONO_VENDOR_QUALCOMM_MSM &&
+                               error.type == OFONO_ERROR_TYPE_CME &&
+                               error.error == 100) {
+                       poll_again = TRUE;
+                       goto poll_again;
+               }
+
                ofono_error("We are polling CLCC and received an error");
                ofono_error("All bets are off for call management");
                return;
@@ -245,6 +260,7 @@ static void clcc_poll_cb(gboolean ok, GAtResult *result, gpointer user_data)
 
        vd->local_release = 0;
 
+poll_again:
        if (poll_again && !vd->clcc_source)
                vd->clcc_source = g_timeout_add(POLL_CLCC_INTERVAL,
                                                poll_clcc, vc);