Handler control queue

Author: Cuda-Chen

virtio-snd.c

@@ -548,7 +548,7 @@ static int virtio_snd_desc_handler(virtio_snd_state_t *vsnd,
     return 0;
 }
 
-static void virtio_queue_notify_handler(virtio_snd_state_t *vsnd, int index)
+static void virtio_queue_notify_handler(virtio_snd_state_t *vsnd, int index, int (*handler)(virtio_snd_state_t *, const virtio_snd_queue_t *, uint32_t, uint32_t *))
 {
     uint32_t *ram = vsnd->ram;
     virtio_snd_queue_t *queue = &vsnd->queues[index];
@@ -586,7 +586,7 @@ static void virtio_queue_notify_handler(virtio_snd_state_t *vsnd, int index)
          * descriptor list.
          */
         uint32_t len = 0;
-        int result = virtio_snd_desc_handler(vsnd, queue, buffer_idx, &len);
+        int result = handler(vsnd, queue, buffer_idx, &len);
         if (result != 0)
             return virtio_snd_set_fail(vsnd);
 
@@ -716,16 +716,11 @@ static bool virtio_snd_reg_write(virtio_snd_state_t *vsnd,
         if (value < ARRAY_SIZE(vsnd->queues)) {
             switch (value) {
             case VSND_QUEUE_CTRL:
-                virtio_queue_notify_handler(vsnd, value);
-                break;
-            case VSND_QUEUE_EVT:
-                fprintf(stderr, "VSND_QUEUE_EVT\n");
+                virtio_queue_notify_handler(vsnd, value, virtio_snd_desc_handler);
                 break;
             case VSND_QUEUE_TX:
-                fprintf(stderr, "VSND_QUEUE_TX\n");
-                break;
-            case VSND_QUEUE_RX:
-                fprintf(stderr, "VSND_QUEUE_RX\n");
+//                virtio_queue_notify_handler(vsnd, value, ); 
+                printf("TX\n");
                 break;
             }
         } else {