2 * Copyright (c) 2009 Andrew Thompson
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 struct usb_page_cache;
35 struct usb_page_search;
41 typedef enum { /* keep in sync with usb_errstr_table */
42 USB_ERR_NORMAL_COMPLETION = 0,
43 USB_ERR_PENDING_REQUESTS, /* 1 */
44 USB_ERR_NOT_STARTED, /* 2 */
45 USB_ERR_INVAL, /* 3 */
46 USB_ERR_NOMEM, /* 4 */
47 USB_ERR_CANCELLED, /* 5 */
48 USB_ERR_BAD_ADDRESS, /* 6 */
49 USB_ERR_BAD_BUFSIZE, /* 7 */
50 USB_ERR_BAD_FLAG, /* 8 */
51 USB_ERR_NO_CALLBACK, /* 9 */
52 USB_ERR_IN_USE, /* 10 */
53 USB_ERR_NO_ADDR, /* 11 */
54 USB_ERR_NO_PIPE, /* 12 */
55 USB_ERR_ZERO_NFRAMES, /* 13 */
56 USB_ERR_ZERO_MAXP, /* 14 */
57 USB_ERR_SET_ADDR_FAILED, /* 15 */
58 USB_ERR_NO_POWER, /* 16 */
59 USB_ERR_TOO_DEEP, /* 17 */
60 USB_ERR_IOERROR, /* 18 */
61 USB_ERR_NOT_CONFIGURED, /* 19 */
62 USB_ERR_TIMEOUT, /* 20 */
63 USB_ERR_SHORT_XFER, /* 21 */
64 USB_ERR_STALLED, /* 22 */
65 USB_ERR_INTERRUPTED, /* 23 */
66 USB_ERR_DMA_LOAD_FAILED, /* 24 */
67 USB_ERR_BAD_CONTEXT, /* 25 */
68 USB_ERR_NO_ROOT_HUB, /* 26 */
69 USB_ERR_NO_INTR_THREAD, /* 27 */
70 USB_ERR_NOT_LOCKED, /* 28 */
77 #define USB_FORCE_SHORT_XFER 0x0001 /* force a short transmit last */
78 #define USB_SHORT_XFER_OK 0x0004 /* allow short reads */
79 #define USB_DELAY_STATUS_STAGE 0x0010 /* insert delay before STATUS stage */
80 #define USB_USER_DATA_PTR 0x0020 /* internal flag */
81 #define USB_MULTI_SHORT_OK 0x0040 /* allow multiple short frames */
82 #define USB_MANUAL_STATUS 0x0080 /* manual ctrl status */
84 #define USB_NO_TIMEOUT 0
85 #define USB_DEFAULT_TIMEOUT 5000 /* 5000 ms = 5 seconds */
90 typedef void (usb_callback_t)(struct usb_xfer *, usb_error_t);
91 typedef void (usb_proc_callback_t)(struct usb_proc_msg *);
92 typedef usb_error_t (usb_handle_req_t)(struct usb_device *,
93 struct usb_device_request *, const void **, uint16_t *);
95 typedef int (usb_fifo_open_t)(struct usb_fifo *fifo, int fflags);
96 typedef void (usb_fifo_close_t)(struct usb_fifo *fifo, int fflags);
97 typedef int (usb_fifo_ioctl_t)(struct usb_fifo *fifo, u_long cmd, void *addr, int fflags);
98 typedef void (usb_fifo_cmd_t)(struct usb_fifo *fifo);
99 typedef void (usb_fifo_filter_t)(struct usb_fifo *fifo, struct usb_mbuf *m);
102 * The following macros are used used to convert milliseconds into
103 * HZ. We use 1024 instead of 1000 milliseconds per second to save a
106 #define USB_MS_HZ 1024
108 #define USB_MS_TO_TICKS(ms) \
109 (((uint32_t)((((uint32_t)(ms)) * ((uint32_t)(hz))) + USB_MS_HZ - 1)) / USB_MS_HZ)
112 * Common queue structure for USB transfers.
114 struct usb_xfer_queue {
115 TAILQ_HEAD(, usb_xfer) head;
116 struct usb_xfer *curr; /* current USB transfer processed */
117 void (*command) (struct usb_xfer_queue *pq);
123 * The following structure defines an USB endpoint
126 struct usb_endpoint {
127 struct usb_xfer_queue endpoint_q; /* queue of USB transfers */
129 struct usb_endpoint_descriptor *edesc;
130 struct usb_pipe_methods *methods; /* set by HC driver */
134 uint8_t toggle_next:1; /* next data toggle value */
135 uint8_t is_stalled:1; /* set if endpoint is stalled */
136 uint8_t is_synced:1; /* set if we a synchronised */
138 uint8_t iface_index; /* not used by "default endpoint" */
140 uint8_t refcount_alloc; /* allocation refcount */
141 uint8_t refcount_bw; /* bandwidth refcount */
142 #define USB_EP_REF_MAX 0x3f
144 /* High-Speed resource allocation (valid if "refcount_bw" > 0) */
146 uint8_t usb_smask; /* USB start mask */
147 uint8_t usb_cmask; /* USB complete mask */
148 uint8_t usb_uframe; /* USB microframe */
152 * The following structure defines an USB interface.
154 struct usb_interface {
155 struct usb_interface_descriptor *idesc;
158 uint8_t parent_iface_index;
161 struct usb_host_interface *altsetting;
162 struct usb_host_interface *cur_altsetting;
163 struct usb_device *linux_udev;
164 void *bsd_priv_sc; /* device specific information */
165 uint8_t num_altsetting; /* number of alternate settings */
166 uint8_t bsd_iface_index;
170 * The following structure defines a set of USB transfer flags.
172 struct usb_xfer_flags {
173 uint8_t force_short_xfer:1; /* force a short transmit transfer
175 uint8_t short_xfer_ok:1; /* allow short receive transfers */
176 uint8_t short_frames_ok:1; /* allow short frames */
177 uint8_t pipe_bof:1; /* block pipe on failure */
178 uint8_t proxy_buffer:1; /* makes buffer size a factor of
179 * "max_frame_size" */
180 uint8_t ext_buffer:1; /* uses external DMA buffer */
181 uint8_t manual_status:1; /* non automatic status stage on
182 * control transfers */
183 uint8_t no_pipe_ok:1; /* set if "USB_ERR_NO_PIPE" error can
185 uint8_t stall_pipe:1; /* set if the endpoint belonging to
186 * this USB transfer should be stalled
187 * before starting this transfer! */
191 * The following structure define an USB configuration, that basically
192 * is used when setting up an USB transfer.
195 usb_callback_t *callback; /* USB transfer callback */
196 usb_frlength_t bufsize; /* total pipe buffer size in bytes */
197 usb_frcount_t frames; /* maximum number of USB frames */
198 usb_timeout_t interval; /* interval in milliseconds */
199 #define USB_DEFAULT_INTERVAL 0
200 usb_timeout_t timeout; /* transfer timeout in milliseconds */
201 struct usb_xfer_flags flags; /* transfer flags */
202 enum usb_hc_mode usb_mode; /* host or device mode */
203 uint8_t type; /* pipe type */
204 uint8_t endpoint; /* pipe number */
205 uint8_t direction; /* pipe direction */
206 uint8_t ep_index; /* pipe index match to use */
207 uint8_t if_index; /* "ifaces" index to use */
211 * The following structure is used when looking up an USB driver for
212 * an USB device. It is inspired by the Linux structure called
215 struct usb_device_id {
217 /* Hook for driver specific information */
218 unsigned long driver_info;
220 /* Used for product specific matches; the BCD range is inclusive */
223 uint16_t bcdDevice_lo;
224 uint16_t bcdDevice_hi;
226 /* Used for device class matches */
227 uint8_t bDeviceClass;
228 uint8_t bDeviceSubClass;
229 uint8_t bDeviceProtocol;
231 /* Used for interface class matches */
232 uint8_t bInterfaceClass;
233 uint8_t bInterfaceSubClass;
234 uint8_t bInterfaceProtocol;
236 /* Select which fields to match against */
237 uint8_t match_flag_vendor:1;
238 uint8_t match_flag_product:1;
239 uint8_t match_flag_dev_lo:1;
240 uint8_t match_flag_dev_hi:1;
241 uint8_t match_flag_dev_class:1;
242 uint8_t match_flag_dev_subclass:1;
243 uint8_t match_flag_dev_protocol:1;
244 uint8_t match_flag_int_class:1;
245 uint8_t match_flag_int_subclass:1;
246 uint8_t match_flag_int_protocol:1;
248 #if USB_HAVE_COMPAT_LINUX
249 /* which fields to match against */
250 uint16_t match_flags;
251 #define USB_DEVICE_ID_MATCH_VENDOR 0x0001
252 #define USB_DEVICE_ID_MATCH_PRODUCT 0x0002
253 #define USB_DEVICE_ID_MATCH_DEV_LO 0x0004
254 #define USB_DEVICE_ID_MATCH_DEV_HI 0x0008
255 #define USB_DEVICE_ID_MATCH_DEV_CLASS 0x0010
256 #define USB_DEVICE_ID_MATCH_DEV_SUBCLASS 0x0020
257 #define USB_DEVICE_ID_MATCH_DEV_PROTOCOL 0x0040
258 #define USB_DEVICE_ID_MATCH_INT_CLASS 0x0080
259 #define USB_DEVICE_ID_MATCH_INT_SUBCLASS 0x0100
260 #define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200
264 #define USB_VENDOR(vend) \
265 .match_flag_vendor = 1, .idVendor = (vend)
267 #define USB_PRODUCT(prod) \
268 .match_flag_product = 1, .idProduct = (prod)
270 #define USB_VP(vend,prod) \
271 USB_VENDOR(vend), USB_PRODUCT(prod)
273 #define USB_VPI(vend,prod,info) \
274 USB_VENDOR(vend), USB_PRODUCT(prod), USB_DRIVER_INFO(info)
276 #define USB_DEV_BCD_GTEQ(lo) /* greater than or equal */ \
277 .match_flag_dev_lo = 1, .bcdDevice_lo = (lo)
279 #define USB_DEV_BCD_LTEQ(hi) /* less than or equal */ \
280 .match_flag_dev_hi = 1, .bcdDevice_hi = (hi)
282 #define USB_DEV_CLASS(dc) \
283 .match_flag_dev_class = 1, .bDeviceClass = (dc)
285 #define USB_DEV_SUBCLASS(dsc) \
286 .match_flag_dev_subclass = 1, .bDeviceSubClass = (dsc)
288 #define USB_DEV_PROTOCOL(dp) \
289 .match_flag_dev_protocol = 1, .bDeviceProtocol = (dp)
291 #define USB_IFACE_CLASS(ic) \
292 .match_flag_int_class = 1, .bInterfaceClass = (ic)
294 #define USB_IFACE_SUBCLASS(isc) \
295 .match_flag_int_subclass = 1, .bInterfaceSubClass = (isc)
297 #define USB_IFACE_PROTOCOL(ip) \
298 .match_flag_int_protocol = 1, .bInterfaceProtocol = (ip)
300 #define USB_IF_CSI(class,subclass,info) \
301 USB_IFACE_CLASS(class), USB_IFACE_SUBCLASS(subclass), USB_DRIVER_INFO(info)
303 #define USB_DRIVER_INFO(n) \
306 #define USB_GET_DRIVER_INFO(did) \
310 * The following structure keeps information that is used to match
311 * against an array of "usb_device_id" elements.
313 struct usbd_lookup_info {
317 uint8_t bDeviceClass;
318 uint8_t bDeviceSubClass;
319 uint8_t bDeviceProtocol;
320 uint8_t bInterfaceClass;
321 uint8_t bInterfaceSubClass;
322 uint8_t bInterfaceProtocol;
325 uint8_t bConfigIndex;
329 /* Structure used by probe and attach */
331 struct usb_attach_arg {
332 struct usbd_lookup_info info;
333 device_t temp_dev; /* for internal use */
334 unsigned long driver_info; /* for internal use */
336 struct usb_device *device; /* current device */
337 struct usb_interface *iface; /* current interface */
338 enum usb_hc_mode usb_mode; /* host or device mode */
340 uint8_t use_generic; /* hint for generic drivers */
344 * The following is a wrapper for the callout structure to ease
345 * porting the code to other platforms.
350 #define usb_callout_init_mtx(c,m,f) callout_init_mtx(&(c)->co,m,f)
351 #define usb_callout_reset(c,t,f,d) callout_reset(&(c)->co,t,f,d)
352 #define usb_callout_stop(c) callout_stop(&(c)->co)
353 #define usb_callout_drain(c) callout_drain(&(c)->co)
354 #define usb_callout_pending(c) callout_pending(&(c)->co)
356 /* USB transfer states */
358 #define USB_ST_SETUP 0
359 #define USB_ST_TRANSFERRED 1
360 #define USB_ST_ERROR 2
362 /* USB handle request states */
363 #define USB_HR_NOT_COMPLETE 0
364 #define USB_HR_COMPLETE_OK 1
365 #define USB_HR_COMPLETE_ERR 2
368 * The following macro will return the current state of an USB
369 * transfer like defined by the "USB_ST_XXX" enums.
371 #define USB_GET_STATE(xfer) (usbd_xfer_state(xfer))
374 * The following structure defines the USB process message header.
376 struct usb_proc_msg {
377 TAILQ_ENTRY(usb_proc_msg) pm_qentry;
378 usb_proc_callback_t *pm_callback;
382 #define USB_FIFO_TX 0
383 #define USB_FIFO_RX 1
386 * Locking note for the following functions. All the
387 * "usb_fifo_cmd_t" and "usb_fifo_filter_t" functions are called
388 * locked. The others are called unlocked.
390 struct usb_fifo_methods {
391 usb_fifo_open_t *f_open;
392 usb_fifo_close_t *f_close;
393 usb_fifo_ioctl_t *f_ioctl;
395 * NOTE: The post-ioctl callback is called after the USB reference
396 * gets locked in the IOCTL handler:
398 usb_fifo_ioctl_t *f_ioctl_post;
399 usb_fifo_cmd_t *f_start_read;
400 usb_fifo_cmd_t *f_stop_read;
401 usb_fifo_cmd_t *f_start_write;
402 usb_fifo_cmd_t *f_stop_write;
403 usb_fifo_filter_t *f_filter_read;
404 usb_fifo_filter_t *f_filter_write;
405 const char *basename[4];
406 const char *postfix[4];
410 struct usb_fifo *fp[2];
414 const char *usbd_errstr(usb_error_t error);
415 void *usbd_find_descriptor(struct usb_device *udev, void *id,
416 uint8_t iface_index, uint8_t type, uint8_t type_mask,
417 uint8_t subtype, uint8_t subtype_mask);
418 struct usb_config_descriptor *usbd_get_config_descriptor(
419 struct usb_device *udev);
420 struct usb_device_descriptor *usbd_get_device_descriptor(
421 struct usb_device *udev);
422 struct usb_interface *usbd_get_iface(struct usb_device *udev,
423 uint8_t iface_index);
424 struct usb_interface_descriptor *usbd_get_interface_descriptor(
425 struct usb_interface *iface);
426 struct usb_endpoint *usbd_get_endpoint(struct usb_device *udev, uint8_t iface_index,
427 const struct usb_config *setup);
428 struct usb_endpoint *usbd_get_ep_by_addr(struct usb_device *udev, uint8_t ea_val);
429 usb_error_t usbd_interface_count(struct usb_device *udev, uint8_t *count);
430 enum usb_hc_mode usbd_get_mode(struct usb_device *udev);
431 enum usb_dev_speed usbd_get_speed(struct usb_device *udev);
432 void device_set_usb_desc(device_t dev);
433 void usb_pause_mtx(struct mtx *mtx, int _ticks);
435 const struct usb_device_id *usbd_lookup_id_by_info(
436 const struct usb_device_id *id, usb_size_t sizeof_id,
437 const struct usbd_lookup_info *info);
438 int usbd_lookup_id_by_uaa(const struct usb_device_id *id,
439 usb_size_t sizeof_id, struct usb_attach_arg *uaa);
441 usb_error_t usbd_do_request_flags(struct usb_device *udev, struct mtx *mtx,
442 struct usb_device_request *req, void *data, uint16_t flags,
443 uint16_t *actlen, usb_timeout_t timeout);
444 #define usbd_do_request(u,m,r,d) \
445 usbd_do_request_flags(u,m,r,d,0,NULL,USB_DEFAULT_TIMEOUT)
447 uint8_t usbd_clear_stall_callback(struct usb_xfer *xfer1,
448 struct usb_xfer *xfer2);
449 uint8_t usbd_get_interface_altindex(struct usb_interface *iface);
450 usb_error_t usbd_set_alt_interface_index(struct usb_device *udev,
451 uint8_t iface_index, uint8_t alt_index);
452 uint32_t usbd_get_isoc_fps(struct usb_device *udev);
453 usb_error_t usbd_transfer_setup(struct usb_device *udev,
454 const uint8_t *ifaces, struct usb_xfer **pxfer,
455 const struct usb_config *setup_start, uint16_t n_setup,
456 void *priv_sc, struct mtx *priv_mtx);
457 void usbd_transfer_submit(struct usb_xfer *xfer);
458 void usbd_transfer_clear_stall(struct usb_xfer *xfer);
459 void usbd_transfer_drain(struct usb_xfer *xfer);
460 uint8_t usbd_transfer_pending(struct usb_xfer *xfer);
461 void usbd_transfer_start(struct usb_xfer *xfer);
462 void usbd_transfer_stop(struct usb_xfer *xfer);
463 void usbd_transfer_unsetup(struct usb_xfer **pxfer, uint16_t n_setup);
464 void usbd_transfer_poll(struct usb_xfer **ppxfer, uint16_t max);
465 void usbd_set_parent_iface(struct usb_device *udev, uint8_t iface_index,
466 uint8_t parent_index);
467 uint8_t usbd_get_bus_index(struct usb_device *udev);
468 uint8_t usbd_get_device_index(struct usb_device *udev);
469 void usbd_set_power_mode(struct usb_device *udev, uint8_t power_mode);
470 uint8_t usbd_device_attached(struct usb_device *udev);
472 void usbd_xfer_status(struct usb_xfer *xfer, int *actlen, int *sumlen,
473 int *aframes, int *nframes);
474 struct usb_page_cache *usbd_xfer_get_frame(struct usb_xfer *xfer,
475 usb_frcount_t frindex);
476 void *usbd_xfer_softc(struct usb_xfer *xfer);
477 void *usbd_xfer_get_priv(struct usb_xfer *xfer);
478 void usbd_xfer_set_priv(struct usb_xfer *xfer, void *);
479 void usbd_xfer_set_interval(struct usb_xfer *xfer, int);
480 uint8_t usbd_xfer_state(struct usb_xfer *xfer);
481 void usbd_xfer_set_frame_data(struct usb_xfer *xfer, usb_frcount_t frindex,
482 void *ptr, usb_frlength_t len);
483 void usbd_xfer_frame_data(struct usb_xfer *xfer, usb_frcount_t frindex,
484 void **ptr, int *len);
485 void usbd_xfer_set_frame_offset(struct usb_xfer *xfer, usb_frlength_t offset,
486 usb_frcount_t frindex);
487 usb_frlength_t usbd_xfer_max_len(struct usb_xfer *xfer);
488 usb_frlength_t usbd_xfer_max_framelen(struct usb_xfer *xfer);
489 usb_frcount_t usbd_xfer_max_frames(struct usb_xfer *xfer);
490 uint8_t usbd_xfer_get_fps_shift(struct usb_xfer *xfer);
491 usb_frlength_t usbd_xfer_frame_len(struct usb_xfer *xfer,
492 usb_frcount_t frindex);
493 void usbd_xfer_set_frame_len(struct usb_xfer *xfer, usb_frcount_t frindex,
495 void usbd_xfer_set_timeout(struct usb_xfer *xfer, int timeout);
496 void usbd_xfer_set_frames(struct usb_xfer *xfer, usb_frcount_t n);
497 void usbd_xfer_set_stall(struct usb_xfer *xfer);
498 int usbd_xfer_is_stalled(struct usb_xfer *xfer);
499 void usbd_xfer_set_flag(struct usb_xfer *xfer, int flag);
500 void usbd_xfer_clr_flag(struct usb_xfer *xfer, int flag);
501 uint16_t usbd_xfer_get_timestamp(struct usb_xfer *xfer);
503 void usbd_copy_in(struct usb_page_cache *cache, usb_frlength_t offset,
504 const void *ptr, usb_frlength_t len);
505 int usbd_copy_in_user(struct usb_page_cache *cache, usb_frlength_t offset,
506 const void *ptr, usb_frlength_t len);
507 void usbd_copy_out(struct usb_page_cache *cache, usb_frlength_t offset,
508 void *ptr, usb_frlength_t len);
509 int usbd_copy_out_user(struct usb_page_cache *cache, usb_frlength_t offset,
510 void *ptr, usb_frlength_t len);
511 void usbd_get_page(struct usb_page_cache *pc, usb_frlength_t offset,
512 struct usb_page_search *res);
513 void usbd_m_copy_in(struct usb_page_cache *cache, usb_frlength_t dst_offset,
514 struct mbuf *m, usb_size_t src_offset, usb_frlength_t src_len);
515 void usbd_frame_zero(struct usb_page_cache *cache, usb_frlength_t offset,
518 int usb_fifo_attach(struct usb_device *udev, void *priv_sc,
519 struct mtx *priv_mtx, struct usb_fifo_methods *pm,
520 struct usb_fifo_sc *f_sc, uint16_t unit, uint16_t subunit,
521 uint8_t iface_index, uid_t uid, gid_t gid, int mode);
522 void usb_fifo_detach(struct usb_fifo_sc *f_sc);
523 int usb_fifo_alloc_buffer(struct usb_fifo *f, uint32_t bufsize,
525 void usb_fifo_free_buffer(struct usb_fifo *f);
526 uint32_t usb_fifo_put_bytes_max(struct usb_fifo *fifo);
527 void usb_fifo_put_data(struct usb_fifo *fifo, struct usb_page_cache *pc,
528 usb_frlength_t offset, usb_frlength_t len, uint8_t what);
529 void usb_fifo_put_data_linear(struct usb_fifo *fifo, void *ptr,
530 usb_size_t len, uint8_t what);
531 uint8_t usb_fifo_put_data_buffer(struct usb_fifo *f, void *ptr, usb_size_t len);
532 void usb_fifo_put_data_error(struct usb_fifo *fifo);
533 uint8_t usb_fifo_get_data(struct usb_fifo *fifo, struct usb_page_cache *pc,
534 usb_frlength_t offset, usb_frlength_t len, usb_frlength_t *actlen,
536 uint8_t usb_fifo_get_data_linear(struct usb_fifo *fifo, void *ptr,
537 usb_size_t len, usb_size_t *actlen, uint8_t what);
538 uint8_t usb_fifo_get_data_buffer(struct usb_fifo *f, void **pptr,
540 void usb_fifo_reset(struct usb_fifo *f);
541 void usb_fifo_wakeup(struct usb_fifo *f);
542 void usb_fifo_get_data_error(struct usb_fifo *fifo);
543 void *usb_fifo_softc(struct usb_fifo *fifo);
544 void usb_fifo_set_close_zlp(struct usb_fifo *, uint8_t);
545 void usb_fifo_set_write_defrag(struct usb_fifo *, uint8_t);
546 void usb_fifo_free(struct usb_fifo *f);
548 #endif /* _USB_USBDI_H_ */