1/*
2 * Copyright 2022, Haiku, Inc. All rights reserved.
3 * Distributed under the terms of the MIT license.
4 */
5/*-
6 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
7 *
8 * Copyright (c) 2009 Andrew Thompson
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30#ifndef _FBSD_COMPAT_USB_USBDI_H_
31#define _FBSD_COMPAT_USB_USBDI_H_
32
33#define usb_device freebsd_usb_device
34#define usb_interface freebsd_usb_interface
35
36struct usb_device;
37struct usb_interface;
38struct usb_xfer;
39struct usb_attach_arg;
40struct usb_endpoint;
41struct usb_page_cache;
42struct usb_page_search;
43struct usb_process;
44struct usb_mbuf;
45struct usb_fs_privdata;
46struct mbuf;
47
48typedef enum {	/* keep in sync with usb_errstr_table */
49	USB_ERR_NORMAL_COMPLETION = 0,
50	USB_ERR_PENDING_REQUESTS,	/* 1 */
51	USB_ERR_NOT_STARTED,		/* 2 */
52	USB_ERR_INVAL,			/* 3 */
53	USB_ERR_NOMEM,			/* 4 */
54	USB_ERR_CANCELLED,		/* 5 */
55	USB_ERR_BAD_ADDRESS,		/* 6 */
56	USB_ERR_BAD_BUFSIZE,		/* 7 */
57	USB_ERR_BAD_FLAG,		/* 8 */
58	USB_ERR_NO_CALLBACK,		/* 9 */
59	USB_ERR_IN_USE,			/* 10 */
60	USB_ERR_NO_ADDR,		/* 11 */
61	USB_ERR_NO_PIPE,		/* 12 */
62	USB_ERR_ZERO_NFRAMES,		/* 13 */
63	USB_ERR_ZERO_MAXP,		/* 14 */
64	USB_ERR_SET_ADDR_FAILED,	/* 15 */
65	USB_ERR_NO_POWER,		/* 16 */
66	USB_ERR_TOO_DEEP,		/* 17 */
67	USB_ERR_IOERROR,		/* 18 */
68	USB_ERR_NOT_CONFIGURED,		/* 19 */
69	USB_ERR_TIMEOUT,		/* 20 */
70	USB_ERR_SHORT_XFER,		/* 21 */
71	USB_ERR_STALLED,		/* 22 */
72	USB_ERR_INTERRUPTED,		/* 23 */
73	USB_ERR_DMA_LOAD_FAILED,	/* 24 */
74	USB_ERR_BAD_CONTEXT,		/* 25 */
75	USB_ERR_NO_ROOT_HUB,		/* 26 */
76	USB_ERR_NO_INTR_THREAD,		/* 27 */
77	USB_ERR_NOT_LOCKED,		/* 28 */
78	USB_ERR_MAX
79} usb_error_t;
80
81/*
82 * Flags for transfers
83 */
84#define	USB_FORCE_SHORT_XFER	0x0001	/* force a short transmit last */
85#define	USB_SHORT_XFER_OK	0x0004	/* allow short reads */
86#define	USB_DELAY_STATUS_STAGE	0x0010	/* insert delay before STATUS stage */
87#define	USB_USER_DATA_PTR	0x0020	/* internal flag */
88#define	USB_MULTI_SHORT_OK	0x0040	/* allow multiple short frames */
89#define	USB_MANUAL_STATUS	0x0080	/* manual ctrl status */
90
91#define	USB_NO_TIMEOUT 0
92#define	USB_DEFAULT_TIMEOUT 5000	/* 5000 ms = 5 seconds */
93
94#if defined(_KERNEL)
95/* typedefs */
96
97typedef void (usb_callback_t)(struct usb_xfer *, usb_error_t);
98
99/*
100 * The following macros are used used to convert milliseconds into
101 * HZ. We use 1024 instead of 1000 milliseconds per second to save a
102 * full division.
103 */
104#define	USB_MS_HZ 1024
105
106#define	USB_MS_TO_TICKS(ms) \
107  (((uint32_t)((((uint32_t)(ms)) * ((uint32_t)(hz))) + USB_MS_HZ - 1)) / USB_MS_HZ)
108
109/*
110 * The following structure defines a USB endpoint.
111 */
112struct usb_endpoint {
113	struct usb_endpoint_descriptor* edesc;
114	uint8_t	iface_index;		/* not used by "default endpoint" */
115};
116
117/*
118 * The following structure defines a set of USB transfer flags.
119 */
120struct usb_xfer_flags {
121	uint8_t	force_short_xfer:1;
122		/* force a short transmit transfer last */
123	uint8_t	short_xfer_ok:1;	/* allow short receive transfers */
124	uint8_t	short_frames_ok:1;	/* allow short frames */
125	uint8_t	pipe_bof:1;		/* block pipe on failure */
126	uint8_t	proxy_buffer:1;
127		/* makes buffer size a factor of "max_frame_size" */
128	uint8_t	ext_buffer:1;		/* uses external DMA buffer */
129	uint8_t	manual_status:1;
130		/* non automatic status stage on control transfers */
131	uint8_t	no_pipe_ok:1;
132		/* set if "USB_ERR_NO_PIPE" error can be ignored */
133	uint8_t	stall_pipe:1;
134		/* set if the endpoint belonging to this USB transfer
135		 * should be stalled before starting this transfer! */
136};
137
138struct usb_config {
139	usb_callback_t *callback;	/* USB transfer callback */
140	usb_frlength_t bufsize;	/* total pipe buffer size in bytes */
141	usb_frcount_t frames;		/* maximum number of USB frames */
142	usb_timeout_t interval;	/* interval in milliseconds */
143#define	USB_DEFAULT_INTERVAL	0
144	usb_timeout_t timeout;		/* transfer timeout in milliseconds */
145	struct usb_xfer_flags flags;	/* transfer flags */
146	usb_stream_t stream_id;		/* USB3.0 specific */
147	enum usb_hc_mode usb_mode;	/* host or device mode */
148	uint8_t	type;			/* pipe type */
149	uint8_t	endpoint;		/* pipe number */
150	uint8_t	direction;		/* pipe direction */
151	uint8_t	ep_index;		/* pipe index match to use */
152	uint8_t	if_index;		/* "ifaces" index to use */
153};
154
155#if USB_HAVE_ID_SECTION
156#define	STRUCT_USB_HOST_ID \
157	struct usb_device_id __section("usb_host_id")
158#define	STRUCT_USB_DEVICE_ID \
159	struct usb_device_id __section("usb_device_id")
160#define	STRUCT_USB_DUAL_ID \
161	struct usb_device_id __section("usb_dual_id")
162#else
163#define	STRUCT_USB_HOST_ID \
164	struct usb_device_id
165#define	STRUCT_USB_DEVICE_ID \
166	struct usb_device_id
167#define	STRUCT_USB_DUAL_ID \
168	struct usb_device_id
169#endif			/* USB_HAVE_ID_SECTION */
170
171struct usb_device_id {
172	/* Select which fields to match against */
173#if BYTE_ORDER == LITTLE_ENDIAN
174	uint16_t
175		match_flag_vendor:1,
176		match_flag_product:1,
177		match_flag_dev_lo:1,
178		match_flag_dev_hi:1,
179
180		match_flag_dev_class:1,
181		match_flag_dev_subclass:1,
182		match_flag_dev_protocol:1,
183		match_flag_int_class:1,
184
185		match_flag_int_subclass:1,
186		match_flag_int_protocol:1,
187		match_flag_unused:6;
188#else
189	uint16_t
190		match_flag_unused:6,
191		match_flag_int_protocol:1,
192		match_flag_int_subclass:1,
193
194		match_flag_int_class:1,
195		match_flag_dev_protocol:1,
196		match_flag_dev_subclass:1,
197		match_flag_dev_class:1,
198
199		match_flag_dev_hi:1,
200		match_flag_dev_lo:1,
201		match_flag_product:1,
202		match_flag_vendor:1;
203#endif
204
205	/* Used for product specific matches; the BCD range is inclusive */
206	uint16_t idVendor;
207	uint16_t idProduct;
208	uint16_t bcdDevice_lo;
209	uint16_t bcdDevice_hi;
210
211	/* Used for device class matches */
212	uint8_t	bDeviceClass;
213	uint8_t	bDeviceSubClass;
214	uint8_t	bDeviceProtocol;
215
216	/* Used for interface class matches */
217	uint8_t	bInterfaceClass;
218	uint8_t	bInterfaceSubClass;
219	uint8_t	bInterfaceProtocol;
220
221	/* Hook for driver specific information */
222	unsigned long driver_info;
223} __aligned(32);
224
225#define USB_PNP_HOST_INFO(table)
226#define USB_PNP_DEVICE_INFO(table)
227#define USB_PNP_DUAL_INFO(table)
228
229/* check that the size of the structure above is correct */
230extern char usb_device_id_assert[(sizeof(struct usb_device_id) == 32) ? 1 : -1];
231
232#define	USB_VENDOR(vend)			\
233  .match_flag_vendor = 1, .idVendor = (vend)
234
235#define	USB_PRODUCT(prod)			\
236  .match_flag_product = 1, .idProduct = (prod)
237
238#define	USB_VP(vend,prod)			\
239  USB_VENDOR(vend), USB_PRODUCT(prod)
240
241#define	USB_VPI(vend,prod,info)			\
242  USB_VENDOR(vend), USB_PRODUCT(prod), USB_DRIVER_INFO(info)
243
244#define	USB_DEV_BCD_GTEQ(lo)	/* greater than or equal */ \
245  .match_flag_dev_lo = 1, .bcdDevice_lo = (lo)
246
247#define	USB_DEV_BCD_LTEQ(hi)	/* less than or equal */ \
248  .match_flag_dev_hi = 1, .bcdDevice_hi = (hi)
249
250#define	USB_DEV_CLASS(dc)			\
251  .match_flag_dev_class = 1, .bDeviceClass = (dc)
252
253#define	USB_DEV_SUBCLASS(dsc)			\
254  .match_flag_dev_subclass = 1, .bDeviceSubClass = (dsc)
255
256#define	USB_DEV_PROTOCOL(dp)			\
257  .match_flag_dev_protocol = 1, .bDeviceProtocol = (dp)
258
259#define	USB_IFACE_CLASS(ic)			\
260  .match_flag_int_class = 1, .bInterfaceClass = (ic)
261
262#define	USB_IFACE_SUBCLASS(isc)			\
263  .match_flag_int_subclass = 1, .bInterfaceSubClass = (isc)
264
265#define	USB_IFACE_PROTOCOL(ip)			\
266  .match_flag_int_protocol = 1, .bInterfaceProtocol = (ip)
267
268#define	USB_IF_CSI(class,subclass,info)			\
269  USB_IFACE_CLASS(class), USB_IFACE_SUBCLASS(subclass), USB_DRIVER_INFO(info)
270
271#define	USB_DRIVER_INFO(n)			\
272  .driver_info = (n)
273
274#define	USB_GET_DRIVER_INFO(did)		\
275  (did)->driver_info
276
277/*
278 * The following structure keeps information that is used to match
279 * against an array of "usb_device_id" elements.
280 */
281struct usbd_lookup_info {
282	uint16_t idVendor;
283	uint16_t idProduct;
284	uint16_t bcdDevice;
285	uint8_t	bDeviceClass;
286	uint8_t	bDeviceSubClass;
287	uint8_t	bDeviceProtocol;
288	uint8_t	bInterfaceClass;
289	uint8_t	bInterfaceSubClass;
290	uint8_t	bInterfaceProtocol;
291	uint8_t	bIfaceIndex;
292	uint8_t	bIfaceNum;
293	uint8_t	bConfigIndex;
294	uint8_t	bConfigNum;
295};
296
297/* Structure used by probe and attach */
298struct usb_attach_arg {
299	struct usbd_lookup_info info;
300	device_t temp_dev;		/* for internal use */
301	unsigned long driver_info;	/* for internal use */
302	void *driver_ivar;
303	struct usb_device *device;	/* current device */
304	struct usb_interface *iface;	/* current interface */
305	enum usb_hc_mode usb_mode;	/* host or device mode */
306	uint8_t	port;
307	uint8_t dev_state;
308#define UAA_DEV_READY		0
309#define UAA_DEV_DISABLED	1
310#define UAA_DEV_EJECTING	2
311};
312
313/*
314 * The following is a wrapper for the callout structure to ease
315 * porting the code to other platforms.
316 */
317struct usb_callout {
318	struct callout co;
319};
320#define	usb_callout_init_mtx(c,m,f) callout_init_mtx(&(c)->co,m,f)
321#define	usb_callout_reset(c,t,f,d) callout_reset(&(c)->co,t,f,d)
322#define	usb_callout_stop(c) callout_stop(&(c)->co)
323#define	usb_callout_drain(c) callout_drain(&(c)->co)
324#define	usb_callout_pending(c) callout_pending(&(c)->co)
325
326/* USB transfer states */
327#define	USB_ST_SETUP       0
328#define	USB_ST_TRANSFERRED 1
329#define	USB_ST_ERROR       2
330
331/*
332 * The following macro will return the current state of an USB
333 * transfer like defined by the "USB_ST_XXX" enums.
334 */
335#define	USB_GET_STATE(xfer) (usbd_xfer_state(xfer))
336
337int	usbd_lookup_id_by_uaa(const struct usb_device_id *id,
338		usb_size_t sizeof_id, struct usb_attach_arg *uaa);
339
340void	device_set_usb_desc(device_t dev);
341
342const char *usbd_errstr(usb_error_t error);
343void	usb_pause_mtx(struct mtx *mtx, int _ticks);
344
345usb_error_t usbd_do_request_flags(struct usb_device* udev, struct mtx *mtx,
346		struct usb_device_request* req, void* data, uint16_t flags,
347		uint16_t *actlen, usb_timeout_t timeout);
348#define	usbd_do_request(u,m,r,d) \
349  usbd_do_request_flags(u,m,r,d,0,NULL,USB_DEFAULT_TIMEOUT)
350
351void	usb_pause_mtx(struct mtx *mtx, int _ticks);
352
353enum usb_dev_speed usbd_get_speed(struct usb_device* udev);
354
355void*	usbd_xfer_softc(struct usb_xfer *xfer);
356void*	usbd_xfer_get_priv(struct usb_xfer* xfer);
357void	usbd_xfer_set_priv(struct usb_xfer* xfer, void* ptr);
358uint8_t	usbd_xfer_state(struct usb_xfer *xfer);
359usb_frlength_t usbd_xfer_max_len(struct usb_xfer *xfer);
360struct usb_page_cache *usbd_xfer_get_frame(struct usb_xfer *, usb_frcount_t);
361void	usbd_xfer_set_frames(struct usb_xfer *xfer, usb_frcount_t n);
362void	usbd_xfer_set_frame_data(struct usb_xfer *xfer, usb_frcount_t frindex,
363		void *ptr, usb_frlength_t len);
364void	usbd_xfer_set_frame_len(struct usb_xfer *xfer, usb_frcount_t frindex,
365		usb_frlength_t len);
366void	usbd_xfer_set_stall(struct usb_xfer *xfer);
367void	usbd_xfer_status(struct usb_xfer *xfer, int *actlen, int *sumlen,
368		int *aframes, int *nframes);
369
370void	usbd_frame_zero(struct usb_page_cache *cache, usb_frlength_t offset,
371		usb_frlength_t len);
372void	usbd_copy_in(struct usb_page_cache *cache, usb_frlength_t offset,
373		const void *ptr, usb_frlength_t len);
374void	usbd_copy_out(struct usb_page_cache *cache, usb_frlength_t offset,
375		void *ptr, usb_frlength_t len);
376void	usbd_m_copy_in(struct usb_page_cache *cache, usb_frlength_t dst_offset,
377		struct mbuf *m, usb_size_t src_offset, usb_frlength_t src_len);
378
379void	usbd_transfer_submit(struct usb_xfer *xfer);
380void	usbd_transfer_start(struct usb_xfer *xfer);
381void	usbd_transfer_stop(struct usb_xfer *xfer);
382void	usbd_transfer_drain(struct usb_xfer* xfer);
383usb_error_t usbd_transfer_setup(struct usb_device *udev,
384		const uint8_t *ifaces, struct usb_xfer **pxfer,
385		const struct usb_config *setup_start, uint16_t n_setup,
386		void *priv_sc, struct mtx *priv_mtx);
387void	usbd_transfer_unsetup(struct usb_xfer **pxfer, uint16_t n_setup);
388
389#endif /* _KERNEL */
390#endif /* _FBSD_COMPAT_USB_USBDI_H_ */
391