1 /*	$NetBSD: usbdi.h,v 1.91 2016/04/23 10:15:32 skrll Exp $	*/
2 /*	$FreeBSD: src/sys/dev/usb/usbdi.h,v 1.18 1999/11/17 22:33:49 n_hibma Exp $	*/
3 
4 /*
5  * Copyright (c) 1998 The NetBSD Foundation, Inc.
6  * All rights reserved.
7  *
8  * This code is derived from software contributed to The NetBSD Foundation
9  * by Lennart Augustsson (lennart@augustsson.net) at
10  * Carlstedt Research & Technology.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #ifndef _USBDI_H_
35 #define _USBDI_H_
36 
37 struct usbd_bus;
38 struct usbd_device;
39 struct usbd_interface;
40 struct usbd_pipe;
41 struct usbd_xfer;
42 
43 typedef enum {		/* keep in sync with usbd_error_strs */
44 	USBD_NORMAL_COMPLETION = 0, /* must be 0 */
45 	USBD_IN_PROGRESS,	/* 1 */
46 	/* errors */
47 	USBD_PENDING_REQUESTS,	/* 2 */
48 	USBD_NOT_STARTED,	/* 3 */
49 	USBD_INVAL,		/* 4 */
50 	USBD_NOMEM,		/* 5 */
51 	USBD_CANCELLED,		/* 6 */
52 	USBD_BAD_ADDRESS,	/* 7 */
53 	USBD_IN_USE,		/* 8 */
54 	USBD_NO_ADDR,		/* 9 */
55 	USBD_SET_ADDR_FAILED,	/* 10 */
56 	USBD_NO_POWER,		/* 11 */
57 	USBD_TOO_DEEP,		/* 12 */
58 	USBD_IOERROR,		/* 13 */
59 	USBD_NOT_CONFIGURED,	/* 14 */
60 	USBD_TIMEOUT,		/* 15 */
61 	USBD_SHORT_XFER,	/* 16 */
62 	USBD_STALLED,		/* 17 */
63 	USBD_INTERRUPTED,	/* 18 */
64 
65 	USBD_ERROR_MAX		/* must be last */
66 } usbd_status;
67 
68 typedef void (*usbd_callback)(struct usbd_xfer *, void *, usbd_status);
69 
70 /* Use default (specified by ep. desc.) interval on interrupt pipe */
71 #define USBD_DEFAULT_INTERVAL	(-1)
72 
73 /* Open flags */
74 #define USBD_EXCLUSIVE_USE	0x01
75 #define USBD_MPSAFE		0x80
76 
77 /* Request flags */
78 #define USBD_SYNCHRONOUS	0x02	/* wait for completion */
79 /* in usb.h #define USBD_SHORT_XFER_OK	0x04*/	/* allow short reads */
80 #define USBD_FORCE_SHORT_XFER	0x08	/* force last short packet on write */
81 #define USBD_SYNCHRONOUS_SIG	0x10	/* if waiting for completion,
82 					 * also take signals */
83 
84 #define USBD_NO_TIMEOUT 0
85 #define USBD_DEFAULT_TIMEOUT 5000 /* ms = 5 s */
86 #define	USBD_CONFIG_TIMEOUT  (3*USBD_DEFAULT_TIMEOUT)
87 
88 #define DEVINFOSIZE 1024
89 
90 usbd_status usbd_open_pipe_intr(struct usbd_interface *, uint8_t, uint8_t,
91     struct usbd_pipe **, void *, void *, uint32_t, usbd_callback, int);
92 usbd_status usbd_open_pipe(struct usbd_interface *, uint8_t, uint8_t,
93      struct usbd_pipe **);
94 usbd_status usbd_close_pipe(struct usbd_pipe *);
95 
96 usbd_status usbd_transfer(struct usbd_xfer *);
97 
98 void *usbd_get_buffer(struct usbd_xfer *);
99 struct usbd_pipe *usbd_get_pipe0(struct usbd_device *);
100 
101 int usbd_create_xfer(struct usbd_pipe *, size_t, unsigned int, unsigned int,
102     struct usbd_xfer **);
103 void usbd_destroy_xfer(struct usbd_xfer *);
104 
105 void usbd_setup_xfer(struct usbd_xfer *, void *, void *,
106     uint32_t, uint16_t, uint32_t, usbd_callback);
107 
108 void usbd_setup_default_xfer(struct usbd_xfer *, struct usbd_device *,
109     void *, uint32_t, usb_device_request_t *, void *,
110     uint32_t, uint16_t, usbd_callback);
111 
112 void usbd_setup_isoc_xfer(struct usbd_xfer *, void *, uint16_t *,
113     uint32_t, uint16_t, usbd_callback);
114 
115 void usbd_get_xfer_status(struct usbd_xfer *, void **,
116     void **, uint32_t *, usbd_status *);
117 
118 usb_endpoint_descriptor_t *usbd_interface2endpoint_descriptor
119     (struct usbd_interface *, uint8_t);
120 
121 usbd_status usbd_abort_pipe(struct usbd_pipe *);
122 usbd_status usbd_abort_default_pipe(struct usbd_device *);
123 
124 usbd_status usbd_clear_endpoint_stall(struct usbd_pipe *);
125 void usbd_clear_endpoint_stall_async(struct usbd_pipe *);
126 
127 void usbd_clear_endpoint_toggle(struct usbd_pipe *);
128 usbd_status usbd_endpoint_count(struct usbd_interface *, uint8_t *);
129 
130 usbd_status usbd_interface_count(struct usbd_device *, uint8_t *);
131 
132 void usbd_interface2device_handle(struct usbd_interface *, struct usbd_device **);
133 usbd_status usbd_device2interface_handle(struct usbd_device *,
134     uint8_t, struct usbd_interface **);
135 
136 struct usbd_device *usbd_pipe2device_handle(struct usbd_pipe *);
137 
138 usbd_status usbd_sync_transfer(struct usbd_xfer *);
139 usbd_status usbd_sync_transfer_sig(struct usbd_xfer *);
140 
141 usbd_status usbd_do_request(struct usbd_device *, usb_device_request_t *, void *);
142 usbd_status usbd_do_request_flags(struct usbd_device *, usb_device_request_t *,
143     void *, uint16_t, int *, uint32_t);
144 
145 usb_interface_descriptor_t *
146     usbd_get_interface_descriptor(struct usbd_interface *);
147 usb_endpoint_descriptor_t *
148     usbd_get_endpoint_descriptor(struct usbd_interface *, uint8_t);
149 
150 usb_config_descriptor_t *usbd_get_config_descriptor(struct usbd_device *);
151 usb_device_descriptor_t *usbd_get_device_descriptor(struct usbd_device *);
152 
153 usbd_status usbd_set_interface(struct usbd_interface *, int);
154 usbd_status usbd_get_interface(struct usbd_interface *, uint8_t *);
155 
156 int usbd_get_no_alts(usb_config_descriptor_t *, int);
157 
158 void usbd_fill_deviceinfo(struct usbd_device *, struct usb_device_info *, int);
159 #ifdef COMPAT_30
160 void usbd_fill_deviceinfo_old(struct usbd_device *, struct usb_device_info_old *,
161     int);
162 #endif
163 int usbd_get_interface_altindex(struct usbd_interface *);
164 
165 usb_interface_descriptor_t *usbd_find_idesc(usb_config_descriptor_t *,
166     int, int);
167 usb_endpoint_descriptor_t *usbd_find_edesc(usb_config_descriptor_t *,
168     int, int, int);
169 
170 void usbd_dopoll(struct usbd_interface *);
171 void usbd_set_polling(struct usbd_device *, int);
172 
173 const char *usbd_errstr(usbd_status);
174 
175 void usbd_add_dev_event(int, struct usbd_device *);
176 void usbd_add_drv_event(int, struct usbd_device *, device_t);
177 
178 char *usbd_devinfo_alloc(struct usbd_device *, int);
179 void usbd_devinfo_free(char *);
180 
181 const struct usbd_quirks *usbd_get_quirks(struct usbd_device *);
182 
183 usbd_status usbd_reload_device_desc(struct usbd_device *);
184 
185 int usbd_ratecheck(struct timeval *);
186 
187 usbd_status usbd_get_string(struct usbd_device *, int, char *);
188 usbd_status usbd_get_string0(struct usbd_device *, int, char *, int);
189 
190 /* An iterator for descriptors. */
191 typedef struct {
192 	const uByte *cur;
193 	const uByte *end;
194 } usbd_desc_iter_t;
195 void usb_desc_iter_init(struct usbd_device *, usbd_desc_iter_t *);
196 const usb_descriptor_t *usb_desc_iter_next(usbd_desc_iter_t *);
197 
198 /* Used to clear endpoint stalls from the softint */
199 void usbd_clear_endpoint_stall_task(void *);
200 
201 /*
202  * The usb_task structs form a queue of things to run in the USB event
203  * thread.  Normally this is just device discovery when a connect/disconnect
204  * has been detected.  But it may also be used by drivers that need to
205  * perform (short) tasks that must have a process context.
206  */
207 struct usb_task {
208 	TAILQ_ENTRY(usb_task) next;
209 	void (*fun)(void *);
210 	void *arg;
211 	volatile unsigned queue;
212 	int flags;
213 };
214 #define	USB_TASKQ_HC		0
215 #define	USB_TASKQ_DRIVER	1
216 #define	USB_NUM_TASKQS		2
217 #define	USB_TASKQ_NAMES		{"usbtask-hc", "usbtask-dr"}
218 #define	USB_TASKQ_MPSAFE	0x80
219 
220 void usb_add_task(struct usbd_device *, struct usb_task *, int);
221 void usb_rem_task(struct usbd_device *, struct usb_task *);
222 #define usb_init_task(t, f, a, fl) ((t)->fun = (f), (t)->arg = (a), (t)->queue = USB_NUM_TASKQS, (t)->flags = (fl))
223 
224 struct usb_devno {
225 	uint16_t ud_vendor;
226 	uint16_t ud_product;
227 };
228 const struct usb_devno *usb_match_device(const struct usb_devno *,
229 	u_int, u_int, uint16_t, uint16_t);
230 #define usb_lookup(tbl, vendor, product) \
231 	usb_match_device((const struct usb_devno *)(tbl), sizeof(tbl) / sizeof((tbl)[0]), sizeof((tbl)[0]), (vendor), (product))
232 #define	USB_PRODUCT_ANY		0xffff
233 
234 /* NetBSD attachment information */
235 
236 /* Attach data */
237 struct usb_attach_arg {
238 	int			uaa_port;
239 	int			uaa_vendor;
240 	int			uaa_product;
241 	int			uaa_release;
242 	struct usbd_device *	uaa_device;	/* current device */
243 	int			uaa_class;
244 	int			uaa_subclass;
245 	int			uaa_proto;
246 	int			uaa_usegeneric;
247 };
248 
249 struct usbif_attach_arg {
250 	int			uiaa_port;
251 	int			uiaa_configno;
252 	int			uiaa_ifaceno;
253 	int			uiaa_vendor;
254 	int			uiaa_product;
255 	int			uiaa_release;
256 	struct usbd_device *	uiaa_device;	/* current device */
257 
258 	struct usbd_interface *	uiaa_iface;	/* current interface */
259 	int			uiaa_class;
260 	int			uiaa_subclass;
261 	int			uiaa_proto;
262 
263 	/* XXX need accounting for interfaces not matched to */
264 
265 	struct usbd_interface **uiaa_ifaces;	/* all interfaces */
266 	int			uiaa_nifaces;	/* number of interfaces */
267 };
268 
269 /* Match codes. */
270 #define UMATCH_HIGHEST					15
271 /* First five codes is for a whole device. */
272 #define UMATCH_VENDOR_PRODUCT_REV			14
273 #define UMATCH_VENDOR_PRODUCT				13
274 #define UMATCH_VENDOR_DEVCLASS_DEVPROTO			12
275 #define UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO		11
276 #define UMATCH_DEVCLASS_DEVSUBCLASS			10
277 /* Next six codes are for interfaces. */
278 #define UMATCH_VENDOR_PRODUCT_REV_CONF_IFACE		 9
279 #define UMATCH_VENDOR_PRODUCT_CONF_IFACE		 8
280 #define UMATCH_VENDOR_IFACESUBCLASS_IFACEPROTO		 7
281 #define UMATCH_VENDOR_IFACESUBCLASS			 6
282 #define UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO	 5
283 #define UMATCH_IFACECLASS_IFACESUBCLASS			 4
284 #define UMATCH_IFACECLASS				 3
285 #define UMATCH_IFACECLASS_GENERIC			 2
286 /* Generic driver */
287 #define UMATCH_GENERIC					 1
288 /* No match */
289 #define UMATCH_NONE					 0
290 
291 
292 /*
293  * IPL_USB is defined as IPL_VM for drivers that have not been made MP safe.
294  * IPL_VM (currently) takes the kernel lock.
295  *
296  * Eventually, IPL_USB can/should be changed
297  */
298 #define splusb splsoftnet
299 #define splhardusb splvm
300 #define IPL_SOFTUSB IPL_SOFTNET
301 #define IPL_USB IPL_VM
302 #define SOFTINT_USB SOFTINT_NET
303 
304 #endif /* _USBDI_H_ */
305