minix3/drivers/usb/usb_hub/urb_helper.h

48 lines
1.4 KiB
C
Raw Normal View History

2020-02-21 00:59:27 +05:30
/*
* URB formatting related definitions
*/
#ifndef _URB_HELPER_H_
#define _URB_HELPER_H_
#include <ddekit/usb.h>
#include <ddekit/semaphore.h>
/* Possible values for attach_urb_data's buf_type */
/* Both may be used for single URB */
#define URB_BUF_TYPE_DATA 0 /* attached buffer is data buffer */
#define URB_BUF_TYPE_SETUP 1 /* attached buffer is setup structure */
/* Possible values for blocking_urb_submit's check_len */
/* Use URB_SUBMIT_CHECK_LEN when actual data buffer length returned
* by HCD must match expected length, supplied in attach_urb_data */
#define URB_SUBMIT_CHECK_LEN 0 /* return error on length mismatch */
#define URB_SUBMIT_ALLOW_MISMATCH 1 /* ignore length check */
/* Endpoint configuration related */
#define URB_INVALID_EP (-1) /* default for unset endpoint */
/*---------------------------*
* declared types *
*---------------------------*/
/* URB's endpoint configuration */
typedef struct urb_ep_config {
ddekit_int32_t ep_num;
ddekit_int32_t direction;
ddekit_int32_t type;
ddekit_int32_t max_packet_size;
ddekit_int32_t interval;
}
urb_ep_config;
/*---------------------------*
* declared functions *
*---------------------------*/
void init_urb(struct ddekit_usb_urb *, struct ddekit_usb_dev *,
urb_ep_config *);
void attach_urb_data(struct ddekit_usb_urb *, int, void *, ddekit_uint32_t);
int blocking_urb_submit(struct ddekit_usb_urb *, ddekit_sem_t *, int);
#endif /* !_URB_HELPER_H_ */