minix/drivers/usb/usb_storage/urb_helper.h

   1 /*
   2  * URB formatting related definitions
   3  */
   4
   5 #ifndef _URB_HELPER_H_
   6 #define _URB_HELPER_H_
   7
   8 #include <ddekit/usb.h>
   9 #include <ddekit/semaphore.h>
  10
  11 /* Possible values for attach_urb_data's buf_type */
  12 /* Both may be used for single URB */
  13 #define URB_BUF_TYPE_DATA 0             /* attached buffer is data buffer */
  14 #define URB_BUF_TYPE_SETUP 1            /* attached buffer is setup structure */
  15
  16 /* Possible values for blocking_urb_submit's check_len */
  17 /* Use URB_SUBMIT_CHECK_LEN when actual data buffer length returned
  18  * by HCD must match expected length, supplied in attach_urb_data */
  19 #define URB_SUBMIT_CHECK_LEN 0          /* return error on length mismatch */
  20 #define URB_SUBMIT_ALLOW_MISMATCH 1     /* ignore length check */
  21
  22 /* Endpoint configuration related */
  23 #define URB_INVALID_EP (-1)             /* default for unset endpoint */
  24
  25 /*---------------------------*
  26  *    declared types         *
  27  *---------------------------*/
  28 /* URB's endpoint configuration */
  29 typedef struct urb_ep_config {
  30
  31         ddekit_int32_t ep_num;
  32         ddekit_int32_t direction;
  33         ddekit_int32_t type;
  34         ddekit_int32_t max_packet_size;
  35         ddekit_int32_t interval;
  36 }
  37 urb_ep_config;
  38
  39 /*---------------------------*
  40  *    declared functions     *
  41  *---------------------------*/
  42 void init_urb(struct ddekit_usb_urb *, struct ddekit_usb_dev *,
  43                 urb_ep_config *);
  44 void attach_urb_data(struct ddekit_usb_urb *, int, void *, ddekit_uint32_t);
  45 int blocking_urb_submit(struct ddekit_usb_urb *, ddekit_sem_t *, int);
  46
  47 #endif /* !_URB_HELPER_H_ */