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