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usb_mbuf.h (193045) usb_mbuf.h (193074)
1/* $FreeBSD: head/sys/dev/usb/usb_mbuf.h 193045 2009-05-29 18:46:57Z thompsa $ */
1/* $FreeBSD: head/sys/dev/usb/usb_mbuf.h 193074 2009-05-30 00:22:57Z thompsa $ */
2/*-
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.

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32 * mbuf system in the kernel.
33 */
34struct usb_mbuf {
35 uint8_t *cur_data_ptr;
36 uint8_t *min_data_ptr;
37 struct usb_mbuf *usb2_nextpkt;
38 struct usb_mbuf *usb2_next;
39
2/*-
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.

--- 22 unchanged lines hidden (view full) ---

32 * mbuf system in the kernel.
33 */
34struct usb_mbuf {
35 uint8_t *cur_data_ptr;
36 uint8_t *min_data_ptr;
37 struct usb_mbuf *usb2_nextpkt;
38 struct usb_mbuf *usb2_next;
39
40 size_t cur_data_len;
41 size_t max_data_len;
40 usb_size_t cur_data_len;
41 usb_size_t max_data_len;
42 uint8_t last_packet:1;
43 uint8_t unused:7;
44};
45
46/*
47 * The following structure defines a minimum re-implementation of the
48 * ifqueue structure in the kernel.
49 */
50struct usb_ifqueue {
51 struct usb_mbuf *ifq_head;
52 struct usb_mbuf *ifq_tail;
53
42 uint8_t last_packet:1;
43 uint8_t unused:7;
44};
45
46/*
47 * The following structure defines a minimum re-implementation of the
48 * ifqueue structure in the kernel.
49 */
50struct usb_ifqueue {
51 struct usb_mbuf *ifq_head;
52 struct usb_mbuf *ifq_tail;
53
54 size_t ifq_len;
55 size_t ifq_maxlen;
54 usb_size_t ifq_len;
55 usb_size_t ifq_maxlen;
56};
57
58#define USB_IF_ENQUEUE(ifq, m) do { \
59 (m)->usb2_nextpkt = NULL; \
60 if ((ifq)->ifq_tail == NULL) \
61 (ifq)->ifq_head = (m); \
62 else \
63 (ifq)->ifq_tail->usb2_nextpkt = (m); \

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92#define USB_MBUF_RESET(m) do { \
93 (m)->cur_data_ptr = (m)->min_data_ptr; \
94 (m)->cur_data_len = (m)->max_data_len; \
95 (m)->last_packet = 0; \
96 } while (0)
97
98/* prototypes */
99void *usb2_alloc_mbufs(struct malloc_type *type, struct usb_ifqueue *ifq,
56};
57
58#define USB_IF_ENQUEUE(ifq, m) do { \
59 (m)->usb2_nextpkt = NULL; \
60 if ((ifq)->ifq_tail == NULL) \
61 (ifq)->ifq_head = (m); \
62 else \
63 (ifq)->ifq_tail->usb2_nextpkt = (m); \

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92#define USB_MBUF_RESET(m) do { \
93 (m)->cur_data_ptr = (m)->min_data_ptr; \
94 (m)->cur_data_len = (m)->max_data_len; \
95 (m)->last_packet = 0; \
96 } while (0)
97
98/* prototypes */
99void *usb2_alloc_mbufs(struct malloc_type *type, struct usb_ifqueue *ifq,
100 size_t block_size, uint16_t nblocks);
100 usb_size_t block_size, uint16_t nblocks);
101
102#endif /* _USB2_MBUF_H_ */
101
102#endif /* _USB2_MBUF_H_ */