We encountered the problem of CME ERROR 14: SIM busy on ZTE modems.
ZTE modems don't use SIM notification to check SIM state.
We poll SIM ready state before confirming PIN is entered.
---
drivers/atmodem/sim.c | 29 +++++++++++++++++++++++++++++
1 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/drivers/atmodem/sim.c b/drivers/atmodem/sim.c
index c51b1d4..1c9a7f3 100644
--- a/drivers/atmodem/sim.c
+++ b/drivers/atmodem/sim.c
@@ -51,6 +51,7 @@ struct sim_data {
GAtChat *chat;
unsigned int vendor;
guint ready_id;
+ struct at_util_sim_state_query *sim_state_query;
};
static const char *crsm_prefix[] = { "+CRSM:", NULL };
@@ -972,6 +973,21 @@ static void at_epev_notify(GAtResult *result, gpointer
user_data)
sd->ready_id = 0;
}
+static void sim_state_cb(gboolean present, gpointer user_data)
+{
+ struct cb_data *cbd = user_data;
+ struct sim_data *sd = cbd->user;
+ ofono_sim_lock_unlock_cb_t cb = cbd->cb;
+
+ at_util_sim_state_query_free(sd->sim_state_query);
+ sd->sim_state_query = NULL;
+
+ if (present == 1)
+ CALLBACK_WITH_SUCCESS(cb, cbd->data);
+ else
+ CALLBACK_WITH_FAILURE(cb, cbd->data);
+}
+
static void at_pin_send_cb(gboolean ok, GAtResult *result,
gpointer user_data)
{
@@ -1006,6 +1022,16 @@ static void at_pin_send_cb(gboolean ok, GAtResult
*result,
at_epev_notify,
FALSE, cbd, g_free);
return;
+ case OFONO_VENDOR_ZTE:
+ /*
+ * On ZTE modems, after pin is entered, SIM state is check
+ * by doing some polling as their modem doesn't use
+ * notification.
+ */
+ sd->sim_state_query = at_util_sim_state_query_new(sd->chat,
+ 2, 20, sim_state_cb, cbd,
+ g_free);
+ return;
}
done:
@@ -1246,6 +1272,9 @@ static void at_sim_remove(struct ofono_sim *sim)
{
struct sim_data *sd = ofono_sim_get_data(sim);
+ /* Cleanup potential SIM state polling */
+ at_util_sim_state_query_free(sd->sim_state_query);
+
ofono_sim_set_data(sim, NULL);
g_at_chat_unref(sd->chat);
--
1.7.5.4
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