gfp_t gfp_flags);
void (*free_request) (struct usb_ep *ep, struct usb_request *req);
- void *(*alloc_buffer) (struct usb_ep *ep, unsigned bytes,
- dma_addr_t *dma, gfp_t gfp_flags);
- void (*free_buffer) (struct usb_ep *ep, void *buf, dma_addr_t dma,
- unsigned bytes);
- // NOTE: on 2.6, drivers may also use dma_map() and
- // dma_sync_single_*() to directly manage dma overhead.
-
int (*queue) (struct usb_ep *ep, struct usb_request *req,
gfp_t gfp_flags);
int (*dequeue) (struct usb_ep *ep, struct usb_request *req);
ep->ops->free_request (ep, req);
}
-/**
- * usb_ep_alloc_buffer - allocate an I/O buffer
- * @ep:the endpoint associated with the buffer
- * @len:length of the desired buffer
- * @dma:pointer to the buffer's DMA address; must be valid
- * @gfp_flags:GFP_* flags to use
- *
- * Returns a new buffer, or null if one could not be allocated.
- * The buffer is suitably aligned for dma, if that endpoint uses DMA,
- * and the caller won't have to care about dma-inconsistency
- * or any hidden "bounce buffer" mechanism. No additional per-request
- * DMA mapping will be required for such buffers.
- * Free it later with usb_ep_free_buffer().
- *
- * You don't need to use this call to allocate I/O buffers unless you
- * want to make sure drivers don't incur costs for such "bounce buffer"
- * copies or per-request DMA mappings.
- */
-static inline void *
-usb_ep_alloc_buffer (struct usb_ep *ep, unsigned len, dma_addr_t *dma,
- gfp_t gfp_flags)
-{
- return ep->ops->alloc_buffer (ep, len, dma, gfp_flags);
-}
-
-/**
- * usb_ep_free_buffer - frees an i/o buffer
- * @ep:the endpoint associated with the buffer
- * @buf:CPU view address of the buffer
- * @dma:the buffer's DMA address
- * @len:length of the buffer
- *
- * reverses the effect of usb_ep_alloc_buffer().
- * caller guarantees the buffer will no longer be accessed
- */
-static inline void
-usb_ep_free_buffer (struct usb_ep *ep, void *buf, dma_addr_t dma, unsigned len)
-{
- ep->ops->free_buffer (ep, buf, dma, len);
-}
-
/**
* usb_ep_queue - queues (submits) an I/O request to an endpoint.
* @ep:the endpoint associated with the request
* Call this in your gadget driver's module initialization function,
* to tell the underlying usb controller driver about your driver.
* The driver's bind() function will be called to bind it to a
- * gadget. This function must be called in a context that can sleep.
+ * gadget before this registration call returns. It's expected that
+ * the bind() functions will be in init sections.
+ * This function must be called in a context that can sleep.
*/
int usb_gadget_register_driver (struct usb_gadget_driver *driver);
* going away. If the controller is connected to a USB host,
* it will first disconnect(). The driver is also requested
* to unbind() and clean up any device state, before this procedure
- * finally returns.
+ * finally returns. It's expected that the unbind() functions
+ * will in in exit sections, so may not be linked in some kernels.
* This function must be called in a context that can sleep.
*/
int usb_gadget_unregister_driver (struct usb_gadget_driver *driver);
/* utility wrapping a simple endpoint selection policy */
extern struct usb_ep *usb_ep_autoconfig (struct usb_gadget *,
- struct usb_endpoint_descriptor *) __init;
+ struct usb_endpoint_descriptor *) __devinit;
-extern void usb_ep_autoconfig_reset (struct usb_gadget *) __init;
+extern void usb_ep_autoconfig_reset (struct usb_gadget *) __devinit;
#endif /* __KERNEL__ */