Changeset c21e6a5 in mainline for uspace/lib/usbhost/src/endpoint.c

Timestamp:

2018-02-05T00:54:08Z (6 years ago)

Author:

Ondřej Hlavatý <aearsis@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

af16ebe

Parents:

65c059f

git-author:

Ondřej Hlavatý <aearsis@…> (2018-02-05 00:27:40)

git-committer:

Ondřej Hlavatý <aearsis@…> (2018-02-05 00:54:08)

Message:

usbhost: prepare buffers for transfers in library

File:

• uspace/lib/usbhost/src/endpoint.c (modified) (3 diffs)

uspace/lib/usbhost/src/endpoint.c

@@ -74 +74 @@
 
         ep->max_transfer_size = ep->max_packet_size * ep->packets_per_uframe;
+        ep->transfer_buffer_policy = DMA_POLICY_STRICT;
 }
 
@@ -215 +216 @@
  * @param name Communication identifier (for nicer output).
  */
-int endpoint_send_batch(endpoint_t *ep, usb_target_t target,
+errno_t endpoint_send_batch(endpoint_t *ep, usb_target_t target,
     usb_direction_t direction, char *data, size_t size, uint64_t setup_data,
     usbhc_iface_transfer_callback_t on_complete, void *arg, const char *name)
@@ -258 +259 @@
 
         batch->target = target;
-        batch->buffer = data;
-        batch->buffer_size = size;
         batch->setup.packed = setup_data;
         batch->dir = direction;
+        batch->buffer_size = size;
+
+        errno_t err;
+        if ((err = usb_transfer_batch_prepare_buffer(batch, data))) {
+                usb_log_warning("Failed to prepare buffer for batch: %s", str_error(err));
+                usb_transfer_batch_destroy(batch);
+                return err;
+        }
+
         batch->on_complete = on_complete;
         batch->on_complete_data = arg;