novatel: skip $NWDMAT if the modem has QMI ports

plugins/novatel/mm-plugin-novatel.c

@@ -24,6 +24,9 @@
 #include <string.h>
 #include <gmodule.h>
 
+#define _LIBMM_INSIDE_MM
+#include <libmm-glib.h>
+
 #include "mm-plugin-novatel.h"
 #include "mm-private-boxed-types.h"
 #include "mm-broadband-modem-novatel.h"
@@ -51,6 +54,139 @@ static const MMPortProbeAtCommand custom_at_probe[] = {
     { NULL }
 };
 
+/*****************************************************************************/
+/* Custom init */
+
+typedef struct {
+    MMPortProbe *probe;
+    MMAtSerialPort *port;
+    GCancellable *cancellable;
+    GSimpleAsyncResult *result;
+    guint nwdmat_retries;
+    guint wait_time;
+} CustomInitContext;
+
+static void
+custom_init_context_complete_and_free (CustomInitContext *ctx)
+{
+    g_simple_async_result_complete_in_idle (ctx->result);
+
+    if (ctx->cancellable)
+        g_object_unref (ctx->cancellable);
+    g_object_unref (ctx->port);
+    g_object_unref (ctx->probe);
+    g_object_unref (ctx->result);
+    g_slice_free (CustomInitContext, ctx);
+}
+
+static gboolean
+novatel_custom_init_finish (MMPortProbe *probe,
+                            GAsyncResult *result,
+                            GError **error)
+{
+    return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (result), error);
+}
+
+static void custom_init_step (CustomInitContext *ctx);
+
+static void
+nwdmat_ready (MMAtSerialPort *port,
+              GString *response,
+              GError *error,
+              CustomInitContext *ctx)
+{
+    if (error) {
+        if (g_error_matches (error,
+                             MM_SERIAL_ERROR,
+                             MM_SERIAL_ERROR_RESPONSE_TIMEOUT)) {
+            custom_init_step (ctx);
+            return;
+        }
+
+        mm_dbg ("(Novatel) Error flipping secondary ports to AT mode: %s", error->message);
+    }
+
+    /* Finish custom_init */
+    g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+    custom_init_context_complete_and_free (ctx);
+}
+
+static gboolean
+custom_init_wait_cb (CustomInitContext *ctx)
+{
+    custom_init_step (ctx);
+    return FALSE;
+}
+
+static void
+custom_init_step (CustomInitContext *ctx)
+{
+    /* If cancelled, end */
+    if (g_cancellable_is_cancelled (ctx->cancellable)) {
+        mm_dbg ("(Novatel) no need to keep on running custom init in (%s)",
+                mm_port_get_device (MM_PORT (ctx->port)));
+        g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+        custom_init_context_complete_and_free (ctx);
+        return;
+    }
+
+    /* If device has a QMI port, don't run $NWDMAT */
+    if (mm_port_probe_list_has_qmi_port (mm_device_peek_port_probe_list (mm_port_probe_peek_device (ctx->probe)))) {
+        mm_dbg ("(Novatel) no need to run custom init in (%s): device has QMI port",
+                mm_port_get_device (MM_PORT (ctx->port)));
+        g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+        custom_init_context_complete_and_free (ctx);
+        return;
+    }
+
+    if (ctx->wait_time > 0) {
+        ctx->wait_time--;
+        g_timeout_add_seconds (1, (GSourceFunc)custom_init_wait_cb, ctx);
+        return;
+    }
+
+    if (ctx->nwdmat_retries >= 0) {
+        ctx->nwdmat_retries--;
+        mm_at_serial_port_queue_command (ctx->port,
+                                         "$NWDMAT=1",
+                                         3,
+                                         FALSE, /* raw */
+                                         ctx->cancellable,
+                                         (MMAtSerialResponseFn)nwdmat_ready,
+                                         ctx);
+        return;
+    }
+
+    /* Finish custom_init */
+    mm_dbg ("(Novatel) couldn't flip secondary port to AT in (%s): all retries consumed",
+            mm_port_get_device (MM_PORT (ctx->port)));
+    g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+    custom_init_context_complete_and_free (ctx);
+}
+
+static void
+novatel_custom_init (MMPortProbe *probe,
+                     MMAtSerialPort *port,
+                     GCancellable *cancellable,
+                     GAsyncReadyCallback callback,
+                     gpointer user_data)
+{
+    CustomInitContext *ctx;
+
+    ctx = g_slice_new (CustomInitContext);
+    ctx->result = g_simple_async_result_new (G_OBJECT (probe),
+                                             callback,
+                                             user_data,
+                                             novatel_custom_init);
+    ctx->probe = g_object_ref (probe);
+    ctx->port = g_object_ref (port);
+    ctx->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
+    ctx->nwdmat_retries = 3;
+    ctx->wait_time = 2;
+
+    custom_init_step (ctx);
+}
+
 /*****************************************************************************/
 
 static MMBaseModem *
@@ -91,6 +227,10 @@ mm_plugin_create (void)
                                        0 };
     static const mm_uint16_pair forbidden_products[] = { { 0x1410, 0x9010 }, /* Novatel E362 */
                                                          { 0, 0 } };
+    static const MMAsyncMethod custom_init = {
+        .async  = G_CALLBACK (novatel_custom_init),
+        .finish = G_CALLBACK (novatel_custom_init_finish),
+    };
 
     return MM_PLUGIN (
         g_object_new (MM_TYPE_PLUGIN_NOVATEL,
@@ -99,7 +239,7 @@ mm_plugin_create (void)
                       MM_PLUGIN_ALLOWED_VENDOR_IDS,    vendors,
                       MM_PLUGIN_FORBIDDEN_PRODUCT_IDS, forbidden_products,
                       MM_PLUGIN_ALLOWED_AT,            TRUE,
-                      MM_PLUGIN_CUSTOM_AT_PROBE,       custom_at_probe,
+                      MM_PLUGIN_CUSTOM_INIT,           &custom_init,
                       MM_PLUGIN_ALLOWED_QCDM,          TRUE,
                       MM_PLUGIN_ALLOWED_QMI,           TRUE,
                       NULL));