xref: /freebsd/sys/dev/usb/usbdi.h (revision 95ee2897e98f5d444f26ed2334cc7c439f9c16c6)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2009 Andrew Thompson
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 #ifndef _USB_USBDI_H_
27 #define _USB_USBDI_H_
28 
29 struct usb_fifo;
30 struct usb_xfer;
31 struct usb_device;
32 struct usb_attach_arg;
33 struct usb_interface;
34 struct usb_endpoint;
35 struct usb_page_cache;
36 struct usb_page_search;
37 struct usb_process;
38 struct usb_proc_msg;
39 struct usb_mbuf;
40 struct usb_fs_privdata;
41 struct mbuf;
42 
43 typedef enum {	/* keep in sync with usb_errstr_table */
44 	USB_ERR_NORMAL_COMPLETION = 0,
45 	USB_ERR_PENDING_REQUESTS,	/* 1 */
46 	USB_ERR_NOT_STARTED,		/* 2 */
47 	USB_ERR_INVAL,			/* 3 */
48 	USB_ERR_NOMEM,			/* 4 */
49 	USB_ERR_CANCELLED,		/* 5 */
50 	USB_ERR_BAD_ADDRESS,		/* 6 */
51 	USB_ERR_BAD_BUFSIZE,		/* 7 */
52 	USB_ERR_BAD_FLAG,		/* 8 */
53 	USB_ERR_NO_CALLBACK,		/* 9 */
54 	USB_ERR_IN_USE,			/* 10 */
55 	USB_ERR_NO_ADDR,		/* 11 */
56 	USB_ERR_NO_PIPE,		/* 12 */
57 	USB_ERR_ZERO_NFRAMES,		/* 13 */
58 	USB_ERR_ZERO_MAXP,		/* 14 */
59 	USB_ERR_SET_ADDR_FAILED,	/* 15 */
60 	USB_ERR_NO_POWER,		/* 16 */
61 	USB_ERR_TOO_DEEP,		/* 17 */
62 	USB_ERR_IOERROR,		/* 18 */
63 	USB_ERR_NOT_CONFIGURED,		/* 19 */
64 	USB_ERR_TIMEOUT,		/* 20 */
65 	USB_ERR_SHORT_XFER,		/* 21 */
66 	USB_ERR_STALLED,		/* 22 */
67 	USB_ERR_INTERRUPTED,		/* 23 */
68 	USB_ERR_DMA_LOAD_FAILED,	/* 24 */
69 	USB_ERR_BAD_CONTEXT,		/* 25 */
70 	USB_ERR_NO_ROOT_HUB,		/* 26 */
71 	USB_ERR_NO_INTR_THREAD,		/* 27 */
72 	USB_ERR_NOT_LOCKED,		/* 28 */
73 	USB_ERR_MAX
74 } usb_error_t;
75 
76 /*
77  * Flags for transfers
78  */
79 #define	USB_FORCE_SHORT_XFER	0x0001	/* force a short transmit last */
80 #define	USB_SHORT_XFER_OK	0x0004	/* allow short reads */
81 #define	USB_DELAY_STATUS_STAGE	0x0010	/* insert delay before STATUS stage */
82 #define	USB_USER_DATA_PTR	0x0020	/* internal flag */
83 #define	USB_MULTI_SHORT_OK	0x0040	/* allow multiple short frames */
84 #define	USB_MANUAL_STATUS	0x0080	/* manual ctrl status */
85 
86 #define	USB_NO_TIMEOUT 0
87 #define	USB_DEFAULT_TIMEOUT 5000	/* 5000 ms = 5 seconds */
88 
89 #if defined(_KERNEL) || defined(_STANDALONE)
90 /* typedefs */
91 
92 typedef void (usb_callback_t)(struct usb_xfer *, usb_error_t);
93 typedef void (usb_proc_callback_t)(struct usb_proc_msg *);
94 typedef usb_error_t (usb_handle_req_t)(struct usb_device *,
95     struct usb_device_request *, const void **, uint16_t *);
96 
97 typedef int (usb_fifo_open_t)(struct usb_fifo *fifo, int fflags);
98 typedef void (usb_fifo_close_t)(struct usb_fifo *fifo, int fflags);
99 typedef int (usb_fifo_ioctl_t)(struct usb_fifo *fifo, u_long cmd, void *addr, int fflags);
100 typedef void (usb_fifo_cmd_t)(struct usb_fifo *fifo);
101 typedef void (usb_fifo_filter_t)(struct usb_fifo *fifo, struct usb_mbuf *m);
102 
103 /* USB events */
104 #ifndef USB_GLOBAL_INCLUDE_FILE
105 #include <sys/_eventhandler.h>
106 #endif
107 typedef void (*usb_dev_configured_t)(void *, struct usb_device *,
108     struct usb_attach_arg *);
109 EVENTHANDLER_DECLARE(usb_dev_configured, usb_dev_configured_t);
110 
111 /*
112  * The following macros are used used to convert milliseconds into
113  * HZ. We use 1024 instead of 1000 milliseconds per second to save a
114  * full division.
115  */
116 #define	USB_MS_HZ 1024
117 
118 #define	USB_MS_TO_TICKS(ms) \
119   (((uint32_t)((((uint32_t)(ms)) * ((uint32_t)(hz))) + USB_MS_HZ - 1)) / USB_MS_HZ)
120 
121 /*
122  * Common queue structure for USB transfers.
123  */
124 struct usb_xfer_queue {
125 	TAILQ_HEAD(, usb_xfer) head;
126 	struct usb_xfer *curr;		/* current USB transfer processed */
127 	void    (*command) (struct usb_xfer_queue *pq);
128 	uint8_t	recurse_1:1;
129 	uint8_t	recurse_2:1;
130 	uint8_t	recurse_3:1;
131 	uint8_t	reserved:5;
132 };
133 
134 /*
135  * The following structure defines an USB endpoint
136  * USB endpoint.
137  */
138 struct usb_endpoint {
139 	/* queue of USB transfers */
140 	struct usb_xfer_queue endpoint_q[USB_MAX_EP_STREAMS];
141 
142 	struct usb_endpoint_descriptor *edesc;
143 	struct usb_endpoint_ss_comp_descriptor *ecomp;
144 	const struct usb_pipe_methods *methods;	/* set by HC driver */
145 
146 	uint16_t isoc_next;
147 
148 	uint8_t	toggle_next:1;		/* next data toggle value */
149 	uint8_t	is_stalled:1;		/* set if endpoint is stalled */
150 	uint8_t	is_synced:1;		/* set if we a synchronised */
151 	uint8_t	unused:5;
152 	uint8_t	iface_index;		/* not used by "default endpoint" */
153 
154 	uint8_t refcount_alloc;		/* allocation refcount */
155 	uint8_t refcount_bw;		/* bandwidth refcount */
156 #define	USB_EP_REF_MAX 0x3f
157 
158 	/* High-Speed resource allocation (valid if "refcount_bw" > 0) */
159 
160 	uint8_t	usb_smask;		/* USB start mask */
161 	uint8_t	usb_cmask;		/* USB complete mask */
162 	uint8_t	usb_uframe;		/* USB microframe */
163 
164 	/* USB endpoint mode, see USB_EP_MODE_XXX */
165 
166 	uint8_t ep_mode;
167 };
168 
169 /*
170  * The following structure defines an USB interface.
171  */
172 struct usb_interface {
173 	struct usb_interface_descriptor *idesc;
174 	device_t subdev;
175 	/* Total number of alternate settings, from 1 to 256 */
176 	uint16_t num_altsetting;
177 	/* Current alternate interface index, from 0 to 255 */
178 	uint8_t	alt_index;
179 	uint8_t	parent_iface_index;
180 
181 	/* Linux compat */
182 	struct usb_host_interface *altsetting;
183 	struct usb_host_interface *cur_altsetting;
184 	struct usb_device *linux_udev;
185 	void   *bsd_priv_sc;		/* device specific information */
186 	char   *pnpinfo;		/* additional PnP-info for this interface */
187 	uint8_t	bsd_iface_index;
188 };
189 
190 /*
191  * The following structure defines a set of USB transfer flags.
192  */
193 struct usb_xfer_flags {
194 	uint8_t	force_short_xfer:1;	/* force a short transmit transfer
195 					 * last */
196 	uint8_t	short_xfer_ok:1;	/* allow short receive transfers */
197 	uint8_t	short_frames_ok:1;	/* allow short frames */
198 	uint8_t	pipe_bof:1;		/* block pipe on failure */
199 	uint8_t	proxy_buffer:1;		/* makes buffer size a factor of
200 					 * "max_frame_size" */
201 	uint8_t	ext_buffer:1;		/* uses external DMA buffer */
202 	uint8_t	manual_status:1;	/* non automatic status stage on
203 					 * control transfers */
204 	uint8_t	no_pipe_ok:1;		/* set if "USB_ERR_NO_PIPE" error can
205 					 * be ignored */
206 	uint8_t	stall_pipe:1;		/* set if the endpoint belonging to
207 					 * this USB transfer should be stalled
208 					 * before starting this transfer! */
209 	uint8_t pre_scale_frames:1;	/* "usb_config->frames" is
210 					 * assumed to give the
211 					 * buffering time in
212 					 * milliseconds and is
213 					 * converted into the nearest
214 					 * number of frames when the
215 					 * USB transfer is setup. This
216 					 * option only has effect for
217 					 * ISOCHRONOUS transfers.
218 					 */
219 	uint8_t send_zlp:1;		/* send a zero length packet first */
220 };
221 
222 /*
223  * The following structure define an USB configuration, that basically
224  * is used when setting up an USB transfer.
225  */
226 struct usb_config {
227 	usb_callback_t *callback;	/* USB transfer callback */
228 	usb_frlength_t bufsize;	/* total pipe buffer size in bytes */
229 	usb_frcount_t frames;		/* maximum number of USB frames */
230 	usb_timeout_t interval;	/* interval in milliseconds */
231 #define	USB_DEFAULT_INTERVAL	0
232 	usb_timeout_t timeout;		/* transfer timeout in milliseconds */
233 	struct usb_xfer_flags flags;	/* transfer flags */
234 	usb_stream_t stream_id;		/* USB3.0 specific */
235 	enum usb_hc_mode usb_mode;	/* host or device mode */
236 	uint8_t	type;			/* pipe type */
237 	uint8_t	endpoint;		/* pipe number */
238 	uint8_t	direction;		/* pipe direction */
239 	uint8_t	ep_index;		/* pipe index match to use */
240 	uint8_t	if_index;		/* "ifaces" index to use */
241 };
242 
243 /*
244  * Use these macro when defining USB device ID arrays if you want to
245  * have your driver module automatically loaded in host, device or
246  * both modes respectively:
247  */
248 #if USB_HAVE_ID_SECTION
249 #define	STRUCT_USB_HOST_ID \
250     struct usb_device_id __section("usb_host_id")
251 #define	STRUCT_USB_DEVICE_ID \
252     struct usb_device_id __section("usb_device_id")
253 #define	STRUCT_USB_DUAL_ID \
254     struct usb_device_id __section("usb_dual_id")
255 #else
256 #define	STRUCT_USB_HOST_ID \
257     struct usb_device_id
258 #define	STRUCT_USB_DEVICE_ID \
259     struct usb_device_id
260 #define	STRUCT_USB_DUAL_ID \
261     struct usb_device_id
262 #endif			/* USB_HAVE_ID_SECTION */
263 
264 /*
265  * The following structure is used when looking up an USB driver for
266  * an USB device. It is inspired by the Linux structure called
267  * "usb_device_id".
268  */
269 struct usb_device_id {
270 	/* Select which fields to match against */
271 #if BYTE_ORDER == LITTLE_ENDIAN
272 	uint16_t
273 		match_flag_vendor:1,
274 		match_flag_product:1,
275 		match_flag_dev_lo:1,
276 		match_flag_dev_hi:1,
277 
278 		match_flag_dev_class:1,
279 		match_flag_dev_subclass:1,
280 		match_flag_dev_protocol:1,
281 		match_flag_int_class:1,
282 
283 		match_flag_int_subclass:1,
284 		match_flag_int_protocol:1,
285 		match_flag_unused:6;
286 #else
287 	uint16_t
288 		match_flag_unused:6,
289 		match_flag_int_protocol:1,
290 		match_flag_int_subclass:1,
291 
292 		match_flag_int_class:1,
293 		match_flag_dev_protocol:1,
294 		match_flag_dev_subclass:1,
295 		match_flag_dev_class:1,
296 
297 		match_flag_dev_hi:1,
298 		match_flag_dev_lo:1,
299 		match_flag_product:1,
300 		match_flag_vendor:1;
301 #endif
302 
303 	/* Used for product specific matches; the BCD range is inclusive */
304 	uint16_t idVendor;
305 	uint16_t idProduct;
306 	uint16_t bcdDevice_lo;
307 	uint16_t bcdDevice_hi;
308 
309 	/* Used for device class matches */
310 	uint8_t	bDeviceClass;
311 	uint8_t	bDeviceSubClass;
312 	uint8_t	bDeviceProtocol;
313 
314 	/* Used for interface class matches */
315 	uint8_t	bInterfaceClass;
316 	uint8_t	bInterfaceSubClass;
317 	uint8_t	bInterfaceProtocol;
318 
319 #if USB_HAVE_COMPAT_LINUX
320 	/* which fields to match against */
321 	uint16_t match_flags;
322 #define	USB_DEVICE_ID_MATCH_VENDOR		0x0001
323 #define	USB_DEVICE_ID_MATCH_PRODUCT		0x0002
324 #define	USB_DEVICE_ID_MATCH_DEV_LO		0x0004
325 #define	USB_DEVICE_ID_MATCH_DEV_HI		0x0008
326 #define	USB_DEVICE_ID_MATCH_DEV_CLASS		0x0010
327 #define	USB_DEVICE_ID_MATCH_DEV_SUBCLASS	0x0020
328 #define	USB_DEVICE_ID_MATCH_DEV_PROTOCOL	0x0040
329 #define	USB_DEVICE_ID_MATCH_INT_CLASS		0x0080
330 #define	USB_DEVICE_ID_MATCH_INT_SUBCLASS	0x0100
331 #define	USB_DEVICE_ID_MATCH_INT_PROTOCOL	0x0200
332 #endif
333 
334 	/* Hook for driver specific information */
335 	unsigned long driver_info;
336 } __aligned(32);
337 
338 #define USB_STD_PNP_INFO "M16:mask;U16:vendor;U16:product;L16:release;G16:release;" \
339 	"U8:devclass;U8:devsubclass;U8:devproto;" \
340 	"U8:intclass;U8:intsubclass;U8:intprotocol;"
341 #define USB_STD_PNP_HOST_INFO USB_STD_PNP_INFO "T:mode=host;"
342 #define USB_STD_PNP_DEVICE_INFO USB_STD_PNP_INFO "T:mode=device;"
343 #define USB_PNP_HOST_INFO(table)					\
344 	MODULE_PNP_INFO(USB_STD_PNP_HOST_INFO, uhub, table, table,	\
345 	    sizeof(table) / sizeof(table[0]))
346 #define USB_PNP_DEVICE_INFO(table)					\
347 	MODULE_PNP_INFO(USB_STD_PNP_DEVICE_INFO, uhub, table, table,	\
348 	    sizeof(table) / sizeof(table[0]))
349 #define USB_PNP_DUAL_INFO(table)					\
350 	MODULE_PNP_INFO(USB_STD_PNP_INFO, uhub, table, table,		\
351 	    sizeof(table) / sizeof(table[0]))
352 
353 /* check that the size of the structure above is correct */
354 extern char usb_device_id_assert[(sizeof(struct usb_device_id) == 32) ? 1 : -1];
355 
356 #define	USB_VENDOR(vend)			\
357   .match_flag_vendor = 1, .idVendor = (vend)
358 
359 #define	USB_PRODUCT(prod)			\
360   .match_flag_product = 1, .idProduct = (prod)
361 
362 #define	USB_VP(vend,prod)			\
363   USB_VENDOR(vend), USB_PRODUCT(prod)
364 
365 #define	USB_VPI(vend,prod,info)			\
366   USB_VENDOR(vend), USB_PRODUCT(prod), USB_DRIVER_INFO(info)
367 
368 #define	USB_DEV_BCD_GTEQ(lo)	/* greater than or equal */ \
369   .match_flag_dev_lo = 1, .bcdDevice_lo = (lo)
370 
371 #define	USB_DEV_BCD_LTEQ(hi)	/* less than or equal */ \
372   .match_flag_dev_hi = 1, .bcdDevice_hi = (hi)
373 
374 #define	USB_DEV_CLASS(dc)			\
375   .match_flag_dev_class = 1, .bDeviceClass = (dc)
376 
377 #define	USB_DEV_SUBCLASS(dsc)			\
378   .match_flag_dev_subclass = 1, .bDeviceSubClass = (dsc)
379 
380 #define	USB_DEV_PROTOCOL(dp)			\
381   .match_flag_dev_protocol = 1, .bDeviceProtocol = (dp)
382 
383 #define	USB_IFACE_CLASS(ic)			\
384   .match_flag_int_class = 1, .bInterfaceClass = (ic)
385 
386 #define	USB_IFACE_SUBCLASS(isc)			\
387   .match_flag_int_subclass = 1, .bInterfaceSubClass = (isc)
388 
389 #define	USB_IFACE_PROTOCOL(ip)			\
390   .match_flag_int_protocol = 1, .bInterfaceProtocol = (ip)
391 
392 #define	USB_IF_CSI(class,subclass,info)			\
393   USB_IFACE_CLASS(class), USB_IFACE_SUBCLASS(subclass), USB_DRIVER_INFO(info)
394 
395 #define	USB_DRIVER_INFO(n)			\
396   .driver_info = (n)
397 
398 #define	USB_GET_DRIVER_INFO(did)		\
399   (did)->driver_info
400 
401 /*
402  * The following structure keeps information that is used to match
403  * against an array of "usb_device_id" elements.
404  */
405 struct usbd_lookup_info {
406 	uint16_t idVendor;
407 	uint16_t idProduct;
408 	uint16_t bcdDevice;
409 	uint8_t	bDeviceClass;
410 	uint8_t	bDeviceSubClass;
411 	uint8_t	bDeviceProtocol;
412 	uint8_t	bInterfaceClass;
413 	uint8_t	bInterfaceSubClass;
414 	uint8_t	bInterfaceProtocol;
415 	uint8_t	bIfaceIndex;
416 	uint8_t	bIfaceNum;
417 	uint8_t	bConfigIndex;
418 	uint8_t	bConfigNum;
419 };
420 
421 /* Structure used by probe and attach */
422 
423 struct usb_attach_arg {
424 	struct usbd_lookup_info info;
425 	device_t temp_dev;		/* for internal use */
426 	unsigned long driver_info;	/* for internal use */
427 	void *driver_ivar;
428 	struct usb_device *device;	/* current device */
429 	struct usb_interface *iface;	/* current interface */
430 	enum usb_hc_mode usb_mode;	/* host or device mode */
431 	uint8_t	port;
432 	uint8_t dev_state;
433 #define UAA_DEV_READY		0
434 #define UAA_DEV_DISABLED	1
435 #define UAA_DEV_EJECTING	2
436 };
437 
438 /*
439  * General purpose locking wrappers to ease supporting
440  * USB polled mode:
441  */
442 #ifdef INVARIANTS
443 #define	USB_MTX_ASSERT(_m, _t) do {		\
444 	if (!USB_IN_POLLING_MODE_FUNC())	\
445 		mtx_assert(_m, _t);		\
446 } while (0)
447 #else
448 #define	USB_MTX_ASSERT(_m, _t) do { } while (0)
449 #endif
450 
451 #define	USB_MTX_LOCK(_m) do {			\
452 	if (!USB_IN_POLLING_MODE_FUNC())	\
453 		mtx_lock(_m);			\
454 } while (0)
455 
456 #define	USB_MTX_UNLOCK(_m) do {			\
457 	if (!USB_IN_POLLING_MODE_FUNC())	\
458 		mtx_unlock(_m);			\
459 } while (0)
460 
461 #define	USB_MTX_LOCK_SPIN(_m) do {		\
462 	if (!USB_IN_POLLING_MODE_FUNC())	\
463 		mtx_lock_spin(_m);		\
464 } while (0)
465 
466 #define	USB_MTX_UNLOCK_SPIN(_m) do {		\
467 	if (!USB_IN_POLLING_MODE_FUNC())	\
468 		mtx_unlock_spin(_m);		\
469 } while (0)
470 
471 /*
472  * The following is a wrapper for the callout structure to ease
473  * porting the code to other platforms.
474  */
475 struct usb_callout {
476 	struct callout co;
477 };
478 #define	usb_callout_init_mtx(c,m,f) callout_init_mtx(&(c)->co,m,f)
479 #define	usb_callout_reset(c,...) do {			\
480 	if (!USB_IN_POLLING_MODE_FUNC())		\
481 		callout_reset(&(c)->co, __VA_ARGS__);	\
482 } while (0)
483 #define	usb_callout_reset_sbt(c,...) do {			\
484 	if (!USB_IN_POLLING_MODE_FUNC())			\
485 		callout_reset_sbt(&(c)->co, __VA_ARGS__);	\
486 } while (0)
487 #define	usb_callout_stop(c) do {			\
488 	if (!USB_IN_POLLING_MODE_FUNC()) {		\
489 		callout_stop(&(c)->co);			\
490 	} else {					\
491 		/*					\
492 		 * Cannot stop callout when		\
493 		 * polling. Set dummy callback		\
494 		 * function instead:			\
495 		 */					\
496 		(c)->co.c_func = &usbd_dummy_timeout;	\
497 	}						\
498 } while (0)
499 #define	usb_callout_drain(c) callout_drain(&(c)->co)
500 #define	usb_callout_pending(c) callout_pending(&(c)->co)
501 
502 /* USB transfer states */
503 
504 #define	USB_ST_SETUP       0
505 #define	USB_ST_TRANSFERRED 1
506 #define	USB_ST_ERROR       2
507 
508 /* USB handle request states */
509 #define	USB_HR_NOT_COMPLETE	0
510 #define	USB_HR_COMPLETE_OK	1
511 #define	USB_HR_COMPLETE_ERR	2
512 
513 /*
514  * The following macro will return the current state of an USB
515  * transfer like defined by the "USB_ST_XXX" enums.
516  */
517 #define	USB_GET_STATE(xfer) (usbd_xfer_state(xfer))
518 
519 /*
520  * The following structure defines the USB process message header.
521  */
522 struct usb_proc_msg {
523 	TAILQ_ENTRY(usb_proc_msg) pm_qentry;
524 	usb_proc_callback_t *pm_callback;
525 	usb_size_t pm_num;
526 };
527 
528 #define	USB_FIFO_TX 0
529 #define	USB_FIFO_RX 1
530 
531 /*
532  * Locking note for the following functions.  All the
533  * "usb_fifo_cmd_t" and "usb_fifo_filter_t" functions are called
534  * locked. The others are called unlocked.
535  */
536 struct usb_fifo_methods {
537 	usb_fifo_open_t *f_open;
538 	usb_fifo_close_t *f_close;
539 	usb_fifo_ioctl_t *f_ioctl;
540 	/*
541 	 * NOTE: The post-ioctl callback is called after the USB reference
542 	 * gets locked in the IOCTL handler:
543 	 */
544 	usb_fifo_ioctl_t *f_ioctl_post;
545 	usb_fifo_cmd_t *f_start_read;
546 	usb_fifo_cmd_t *f_stop_read;
547 	usb_fifo_cmd_t *f_start_write;
548 	usb_fifo_cmd_t *f_stop_write;
549 	usb_fifo_filter_t *f_filter_read;
550 	usb_fifo_filter_t *f_filter_write;
551 	const char *basename[4];
552 	const char *postfix[4];
553 };
554 
555 struct usb_fifo_sc {
556 	struct usb_fifo *fp[2];
557 	struct usb_fs_privdata *dev;
558 };
559 
560 const char *usbd_errstr(usb_error_t error);
561 void	*usbd_find_descriptor(struct usb_device *udev, void *id,
562 	    uint8_t iface_index, uint8_t type, uint8_t type_mask,
563 	    uint8_t subtype, uint8_t subtype_mask);
564 struct usb_config_descriptor *usbd_get_config_descriptor(
565 	    struct usb_device *udev);
566 struct usb_device_descriptor *usbd_get_device_descriptor(
567 	    struct usb_device *udev);
568 struct usb_interface *usbd_get_iface(struct usb_device *udev,
569 	    uint8_t iface_index);
570 struct usb_interface_descriptor *usbd_get_interface_descriptor(
571 	    struct usb_interface *iface);
572 struct usb_endpoint *usbd_get_endpoint(struct usb_device *udev, uint8_t iface_index,
573 		    const struct usb_config *setup);
574 struct usb_endpoint *usbd_get_ep_by_addr(struct usb_device *udev, uint8_t ea_val);
575 usb_error_t	usbd_interface_count(struct usb_device *udev, uint8_t *count);
576 enum usb_hc_mode usbd_get_mode(struct usb_device *udev);
577 enum usb_dev_speed usbd_get_speed(struct usb_device *udev);
578 void	device_set_usb_desc(device_t dev);
579 void	usb_pause_mtx(struct mtx *mtx, int _ticks);
580 usb_error_t	usbd_set_pnpinfo(struct usb_device *udev,
581 			uint8_t iface_index, const char *pnpinfo);
582 usb_error_t	usbd_add_dynamic_quirk(struct usb_device *udev,
583 			uint16_t quirk);
584 usb_error_t	usbd_set_endpoint_mode(struct usb_device *udev,
585 			struct usb_endpoint *ep, uint8_t ep_mode);
586 uint8_t		usbd_get_endpoint_mode(struct usb_device *udev,
587 			struct usb_endpoint *ep);
588 
589 const struct usb_device_id *usbd_lookup_id_by_info(
590 	    const struct usb_device_id *id, usb_size_t sizeof_id,
591 	    const struct usbd_lookup_info *info);
592 int	usbd_lookup_id_by_uaa(const struct usb_device_id *id,
593 	    usb_size_t sizeof_id, struct usb_attach_arg *uaa);
594 
595 usb_error_t usbd_do_request_flags(struct usb_device *udev, struct mtx *mtx,
596 		    struct usb_device_request *req, void *data, uint16_t flags,
597 		    uint16_t *actlen, usb_timeout_t timeout);
598 #define	usbd_do_request(u,m,r,d) \
599   usbd_do_request_flags(u,m,r,d,0,NULL,USB_DEFAULT_TIMEOUT)
600 
601 uint8_t	usbd_clear_stall_callback(struct usb_xfer *xfer1,
602 	    struct usb_xfer *xfer2);
603 uint8_t	usbd_get_interface_altindex(struct usb_interface *iface);
604 usb_error_t usbd_set_alt_interface_index(struct usb_device *udev,
605 	    uint8_t iface_index, uint8_t alt_index);
606 uint32_t usbd_get_isoc_fps(struct usb_device *udev);
607 uint32_t usbd_get_max_frame_length(const struct usb_endpoint_descriptor *,
608     const struct usb_endpoint_ss_comp_descriptor *,
609     enum usb_dev_speed);
610 usb_error_t usbd_transfer_setup(struct usb_device *udev,
611 	    const uint8_t *ifaces, struct usb_xfer **pxfer,
612 	    const struct usb_config *setup_start, uint16_t n_setup,
613 	    void *priv_sc, struct mtx *priv_mtx);
614 void	usbd_transfer_submit(struct usb_xfer *xfer);
615 void	usbd_transfer_clear_stall(struct usb_xfer *xfer);
616 void	usbd_transfer_drain(struct usb_xfer *xfer);
617 uint8_t	usbd_transfer_pending(struct usb_xfer *xfer);
618 void	usbd_transfer_start(struct usb_xfer *xfer);
619 void	usbd_transfer_stop(struct usb_xfer *xfer);
620 void	usbd_transfer_unsetup(struct usb_xfer **pxfer, uint16_t n_setup);
621 void	usbd_transfer_poll(struct usb_xfer **ppxfer, uint16_t max);
622 void	usbd_set_parent_iface(struct usb_device *udev, uint8_t iface_index,
623 	    uint8_t parent_index);
624 uint8_t	usbd_get_bus_index(struct usb_device *udev);
625 uint8_t	usbd_get_device_index(struct usb_device *udev);
626 void	usbd_set_power_mode(struct usb_device *udev, uint8_t power_mode);
627 uint8_t	usbd_filter_power_mode(struct usb_device *udev, uint8_t power_mode);
628 uint8_t	usbd_device_attached(struct usb_device *udev);
629 
630 usb_frlength_t
631 	usbd_xfer_old_frame_length(struct usb_xfer *xfer, usb_frcount_t frindex);
632 void	usbd_xfer_status(struct usb_xfer *xfer, int *actlen, int *sumlen,
633 	    int *aframes, int *nframes);
634 struct usb_page_cache *usbd_xfer_get_frame(struct usb_xfer *, usb_frcount_t);
635 void	*usbd_xfer_get_frame_buffer(struct usb_xfer *, usb_frcount_t);
636 void	*usbd_xfer_softc(struct usb_xfer *xfer);
637 void	*usbd_xfer_get_priv(struct usb_xfer *xfer);
638 void	usbd_xfer_set_priv(struct usb_xfer *xfer, void *);
639 void	usbd_xfer_set_interval(struct usb_xfer *xfer, int);
640 uint8_t	usbd_xfer_state(struct usb_xfer *xfer);
641 void	usbd_xfer_set_frame_data(struct usb_xfer *xfer, usb_frcount_t frindex,
642 	    void *ptr, usb_frlength_t len);
643 void	usbd_xfer_frame_data(struct usb_xfer *xfer, usb_frcount_t frindex,
644 	    void **ptr, int *len);
645 void	usbd_xfer_set_frame_offset(struct usb_xfer *xfer, usb_frlength_t offset,
646 	    usb_frcount_t frindex);
647 usb_frlength_t usbd_xfer_max_len(struct usb_xfer *xfer);
648 usb_frlength_t usbd_xfer_max_framelen(struct usb_xfer *xfer);
649 usb_frcount_t usbd_xfer_max_frames(struct usb_xfer *xfer);
650 uint8_t	usbd_xfer_get_fps_shift(struct usb_xfer *xfer);
651 usb_frlength_t usbd_xfer_frame_len(struct usb_xfer *xfer,
652 	    usb_frcount_t frindex);
653 void	usbd_xfer_set_frame_len(struct usb_xfer *xfer, usb_frcount_t frindex,
654 	    usb_frlength_t len);
655 void	usbd_xfer_set_timeout(struct usb_xfer *xfer, int timeout);
656 void	usbd_xfer_set_frames(struct usb_xfer *xfer, usb_frcount_t n);
657 void	usbd_xfer_set_zlp(struct usb_xfer *xfer);
658 uint8_t	usbd_xfer_get_and_clr_zlp(struct usb_xfer *xfer);
659 void	usbd_xfer_set_stall(struct usb_xfer *xfer);
660 int	usbd_xfer_is_stalled(struct usb_xfer *xfer);
661 void	usbd_xfer_set_flag(struct usb_xfer *xfer, int flag);
662 void	usbd_xfer_clr_flag(struct usb_xfer *xfer, int flag);
663 uint16_t usbd_xfer_get_timestamp(struct usb_xfer *xfer);
664 uint8_t usbd_xfer_maxp_was_clamped(struct usb_xfer *xfer);
665 
666 void	usbd_copy_in(struct usb_page_cache *cache, usb_frlength_t offset,
667 	    const void *ptr, usb_frlength_t len);
668 int	usbd_copy_in_user(struct usb_page_cache *cache, usb_frlength_t offset,
669 	    const void *ptr, usb_frlength_t len);
670 void	usbd_copy_out(struct usb_page_cache *cache, usb_frlength_t offset,
671 	    void *ptr, usb_frlength_t len);
672 int	usbd_copy_out_user(struct usb_page_cache *cache, usb_frlength_t offset,
673 	    void *ptr, usb_frlength_t len);
674 void	usbd_get_page(struct usb_page_cache *pc, usb_frlength_t offset,
675 	    struct usb_page_search *res);
676 void	usbd_m_copy_in(struct usb_page_cache *cache, usb_frlength_t dst_offset,
677 	    struct mbuf *m, usb_size_t src_offset, usb_frlength_t src_len);
678 void	usbd_frame_zero(struct usb_page_cache *cache, usb_frlength_t offset,
679 	    usb_frlength_t len);
680 void	usbd_start_re_enumerate(struct usb_device *udev);
681 usb_error_t
682 	usbd_start_set_config(struct usb_device *, uint8_t);
683 int	usbd_in_polling_mode(void);
684 void	usbd_dummy_timeout(void *);
685 
686 int	usb_fifo_attach(struct usb_device *udev, void *priv_sc,
687 	    struct mtx *priv_mtx, struct usb_fifo_methods *pm,
688 	    struct usb_fifo_sc *f_sc, uint16_t unit, int16_t subunit,
689 	    uint8_t iface_index, uid_t uid, gid_t gid, int mode);
690 void	usb_fifo_detach(struct usb_fifo_sc *f_sc);
691 int	usb_fifo_alloc_buffer(struct usb_fifo *f, uint32_t bufsize,
692 	    uint16_t nbuf);
693 void	usb_fifo_free_buffer(struct usb_fifo *f);
694 uint32_t usb_fifo_put_bytes_max(struct usb_fifo *fifo);
695 void	usb_fifo_put_data(struct usb_fifo *fifo, struct usb_page_cache *pc,
696 	    usb_frlength_t offset, usb_frlength_t len, uint8_t what);
697 void	usb_fifo_put_data_linear(struct usb_fifo *fifo, void *ptr,
698 	    usb_size_t len, uint8_t what);
699 uint8_t	usb_fifo_put_data_buffer(struct usb_fifo *f, void *ptr, usb_size_t len);
700 void	usb_fifo_put_data_error(struct usb_fifo *fifo);
701 uint8_t	usb_fifo_get_data(struct usb_fifo *fifo, struct usb_page_cache *pc,
702 	    usb_frlength_t offset, usb_frlength_t len, usb_frlength_t *actlen,
703 	    uint8_t what);
704 uint8_t	usb_fifo_get_data_linear(struct usb_fifo *fifo, void *ptr,
705 	    usb_size_t len, usb_size_t *actlen, uint8_t what);
706 uint8_t	usb_fifo_get_data_buffer(struct usb_fifo *f, void **pptr,
707 	    usb_size_t *plen);
708 void	usb_fifo_reset(struct usb_fifo *f);
709 void	usb_fifo_wakeup(struct usb_fifo *f);
710 void	usb_fifo_get_data_error(struct usb_fifo *fifo);
711 void	*usb_fifo_softc(struct usb_fifo *fifo);
712 void	usb_fifo_set_close_zlp(struct usb_fifo *, uint8_t);
713 void	usb_fifo_set_write_defrag(struct usb_fifo *, uint8_t);
714 void	usb_fifo_free(struct usb_fifo *f);
715 #endif	/* _KERNEL || _STANDALONE */
716 #endif	/* _USB_USBDI_H_ */
717