iface-modem,broadband-modem: update 'disabling->disabled' transition logic

It is not the Modem interface the one notifying about the 'disabling->disabled'
transition, it's the BroadbandModem directly doing it, covering all the
disabling sequences of all the interfaces.

src/mm-broadband-modem.c

@@ -6824,6 +6824,7 @@ enabling_started (MMBroadbandModem *self,
 
 typedef enum {
     DISABLING_STEP_FIRST,
+    DISABLING_STEP_WAIT_FOR_FINAL_STATE,
     DISABLING_STEP_DISCONNECT_BEARERS,
     DISABLING_STEP_IFACE_SIMPLE,
     DISABLING_STEP_IFACE_FIRMWARE,
@@ -6843,6 +6844,8 @@ typedef struct {
     GCancellable *cancellable;
     GSimpleAsyncResult *result;
     DisablingStep step;
+    MMModemState previous_state;
+    gboolean disabled;
 } DisablingContext;
 
 static void disabling_step (DisablingContext *ctx);
@@ -6860,6 +6863,19 @@ disabling_context_complete_and_free (DisablingContext *ctx)
         g_error_free (error);
     }
 
+    if (ctx->disabled)
+        mm_iface_modem_update_state (MM_IFACE_MODEM (ctx->self),
+                                     MM_MODEM_STATE_DISABLED,
+                                     MM_MODEM_STATE_CHANGE_REASON_USER_REQUESTED);
+    else if (ctx->previous_state != MM_MODEM_STATE_DISABLED) {
+        /* Fallback to previous state */
+        mm_info ("Falling back to previous state '%s'",
+                 mm_modem_state_get_string (ctx->previous_state));
+        mm_iface_modem_update_state (MM_IFACE_MODEM (ctx->self),
+                                     ctx->previous_state,
+                                     MM_MODEM_STATE_CHANGE_REASON_UNKNOWN);
+    }
+
     g_object_unref (ctx->result);
     if (ctx->cancellable)
         g_object_unref (ctx->cancellable);
@@ -6944,6 +6960,47 @@ bearer_list_disconnect_all_bearers_ready (MMBearerList *list,
     disabling_step (ctx);
 }
 
+static void
+disabling_wait_for_final_state_ready (MMIfaceModem *self,
+                                      GAsyncResult *res,
+                                      DisablingContext *ctx)
+{
+    GError *error = NULL;
+
+    ctx->previous_state = mm_iface_modem_wait_for_final_state_finish (self, res, &error);
+    if (error) {
+        g_simple_async_result_take_error (G_SIMPLE_ASYNC_RESULT (ctx->result), error);
+        disabling_context_complete_and_free (ctx);
+        return;
+    }
+
+    switch (ctx->previous_state) {
+    case MM_MODEM_STATE_UNKNOWN:
+    case MM_MODEM_STATE_FAILED:
+    case MM_MODEM_STATE_LOCKED:
+    case MM_MODEM_STATE_DISABLED:
+        /* Just return success, don't relaunch disabling.
+         * Note that we do consider here UNKNOWN and FAILED status on purpose,
+         * as the MMManager will try to disable every modem before removing
+         * it. */
+        mm_info ("Modem is already fully disabled...");
+        g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+        disabling_context_complete_and_free (ctx);
+        return;
+    default:
+        break;
+    }
+
+    /* We're in a final state now, go on */
+
+    mm_iface_modem_update_state (MM_IFACE_MODEM (ctx->self),
+                                 MM_MODEM_STATE_DISABLING,
+                                 MM_MODEM_STATE_CHANGE_REASON_USER_REQUESTED);
+
+    ctx->step++;
+    disabling_step (ctx);
+}
+
 static void
 disabling_step (DisablingContext *ctx)
 {
@@ -6957,6 +7014,13 @@ disabling_step (DisablingContext *ctx)
         /* Fall down to next step */
         ctx->step++;
 
+    case DISABLING_STEP_WAIT_FOR_FINAL_STATE:
+        mm_iface_modem_wait_for_final_state (MM_IFACE_MODEM (ctx->self),
+                                             MM_MODEM_STATE_UNKNOWN, /* just any */
+                                             (GAsyncReadyCallback)disabling_wait_for_final_state_ready,
+                                             ctx);
+        return;
+
     case DISABLING_STEP_DISCONNECT_BEARERS:
         if (ctx->self->priv->modem_bearer_list) {
             mm_bearer_list_disconnect_all_bearers (
@@ -7067,6 +7131,7 @@ disabling_step (DisablingContext *ctx)
 
     case DISABLING_STEP_LAST:
         mm_info ("Modem fully disabled...");
+        ctx->disabled = TRUE;
         /* All disabled without errors! */
         g_simple_async_result_set_op_res_gboolean (G_SIMPLE_ASYNC_RESULT (ctx->result), TRUE);
         disabling_context_complete_and_free (ctx);
@@ -7082,61 +7147,15 @@ disable (MMBaseModem *self,
          GAsyncReadyCallback callback,
          gpointer user_data)
 {
-    GSimpleAsyncResult *result;
+    DisablingContext *ctx;
 
-    result = g_simple_async_result_new (G_OBJECT (self), callback, user_data, disable);
+    ctx = g_new0 (DisablingContext, 1);
+    ctx->self = g_object_ref (self);
+    ctx->result = g_simple_async_result_new (G_OBJECT (self), callback, user_data, disable);
+    ctx->cancellable = (cancellable ? g_object_ref (cancellable) : NULL);
+    ctx->step = DISABLING_STEP_FIRST;
 
-    /* Check state before launching modem disabling */
+    disabling_step (ctx);
-    switch (MM_BROADBAND_MODEM (self)->priv->modem_state) {
-    case MM_MODEM_STATE_UNKNOWN:
-    case MM_MODEM_STATE_FAILED:
-    case MM_MODEM_STATE_INITIALIZING:
-    case MM_MODEM_STATE_LOCKED:
-    case MM_MODEM_STATE_DISABLED:
-        /* Just return success, don't relaunch disabling.
-         * Note that we do consider here UNKNOWN and FAILED status on purpose,
-         * as the MMManager will try to disable every modem before removing
-         * it. */
-        g_simple_async_result_set_op_res_gboolean (result, TRUE);
-        break;
-
-    case MM_MODEM_STATE_DISABLING:
-        g_simple_async_result_set_error (result,
-                                         MM_CORE_ERROR,
-                                         MM_CORE_ERROR_WRONG_STATE,
-                                         "Cannot disable modem: "
-                                         "already being disabled");
-        break;
-
-    case MM_MODEM_STATE_ENABLING:
-        g_simple_async_result_set_error (result,
-                                         MM_CORE_ERROR,
-                                         MM_CORE_ERROR_WRONG_STATE,
-                                         "Cannot disable modem: "
-                                         "currently being enabled");
-        break;
-
-    case MM_MODEM_STATE_ENABLED:
-    case MM_MODEM_STATE_SEARCHING:
-    case MM_MODEM_STATE_REGISTERED:
-    case MM_MODEM_STATE_DISCONNECTING:
-    case MM_MODEM_STATE_CONNECTING:
-    case MM_MODEM_STATE_CONNECTED: {
-        DisablingContext *ctx;
-
-        ctx = g_new0 (DisablingContext, 1);
-        ctx->self = g_object_ref (self);
-        ctx->result = result;
-        ctx->cancellable = (cancellable ? g_object_ref (cancellable) : NULL);
-        ctx->step = DISABLING_STEP_FIRST;
-
-        disabling_step (ctx);
-        return;
-      }
-    }
-
-    g_simple_async_result_complete_in_idle (result);
-    g_object_unref (result);
 }
 
 /*****************************************************************************/

src/mm-iface-modem.c

@@ -2594,7 +2594,6 @@ struct _DisablingContext {
     MMIfaceModem *self;
     DisablingStep step;
     MMModemState previous_state;
-    gboolean disabled;
     GSimpleAsyncResult *result;
     MmGdbusModem *skeleton;
 };
@@ -2603,17 +2602,6 @@ static void
 disabling_context_complete_and_free (DisablingContext *ctx)
 {
     g_simple_async_result_complete_in_idle (ctx->result);
-
-    if (ctx->disabled)
-        mm_iface_modem_update_state (ctx->self,
-                                     MM_MODEM_STATE_DISABLED,
-                                     MM_MODEM_STATE_CHANGE_REASON_USER_REQUESTED);
-    else
-        /* Fallback to previous state */
-        mm_iface_modem_update_state (ctx->self,
-                                     ctx->previous_state,
-                                     MM_MODEM_STATE_CHANGE_REASON_UNKNOWN);
-
     g_object_unref (ctx->self);
     g_object_unref (ctx->result);
     if (ctx->skeleton)
@@ -2693,7 +2681,6 @@ interface_disabling_step (DisablingContext *ctx)
     case DISABLING_STEP_LAST:
         /* We are done without errors! */
         g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
-        ctx->disabled = TRUE;
         disabling_context_complete_and_free (ctx);
         return;
     }
@@ -2728,10 +2715,6 @@ mm_iface_modem_disable (MMIfaceModem *self,
         return;
     }
 
-    mm_iface_modem_update_state (ctx->self,
-                                 MM_MODEM_STATE_DISABLING,
-                                 MM_MODEM_STATE_CHANGE_REASON_USER_REQUESTED);
-
     interface_disabling_step (ctx);
 }