1 /*        $NetBSD: usbdi.h,v 1.108 2022/08/20 11:32:20 riastradh 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 #include <sys/types.h>
38 
39 #include <dev/usb/usb.h>
40 
41 struct usbd_bus;
42 struct usbd_device;
43 struct usbd_interface;
44 struct usbd_pipe;
45 struct usbd_xfer;
46 
47 typedef enum {                /* keep in sync with usbd_error_strs */
48           USBD_NORMAL_COMPLETION = 0, /* must be 0 */
49           USBD_IN_PROGRESS,   /* 1 */
50           /* errors */
51           USBD_PENDING_REQUESTS,        /* 2 */
52           USBD_NOT_STARTED,   /* 3 */
53           USBD_INVAL,                   /* 4 */
54           USBD_NOMEM,                   /* 5 */
55           USBD_CANCELLED,               /* 6 */
56           USBD_BAD_ADDRESS,   /* 7 */
57           USBD_IN_USE,                  /* 8 */
58           USBD_NO_ADDR,                 /* 9 */
59           USBD_SET_ADDR_FAILED,         /* 10 */
60           USBD_NO_POWER,                /* 11 */
61           USBD_TOO_DEEP,                /* 12 */
62           USBD_IOERROR,                 /* 13 */
63           USBD_NOT_CONFIGURED,          /* 14 */
64           USBD_TIMEOUT,                 /* 15 */
65           USBD_SHORT_XFER,    /* 16 */
66           USBD_STALLED,                 /* 17 */
67           USBD_INTERRUPTED,   /* 18 */
68 
69           USBD_ERROR_MAX                /* must be last */
70 } usbd_status;
71 
72 typedef void (*usbd_callback)(struct usbd_xfer *, void *, usbd_status);
73 
74 /* Use default (specified by ep. desc.) interval on interrupt pipe */
75 #define USBD_DEFAULT_INTERVAL (-1)
76 
77 /* Open flags */
78 #define USBD_EXCLUSIVE_USE    0x01
79 #define USBD_MPSAFE           0x80
80 
81 /* Request flags */
82 #define USBD_SYNCHRONOUS      0x02      /* wait for completion */
83 /* in usb.h #define USBD_SHORT_XFER_OK  0x04*/    /* allow short reads */
84 #define USBD_FORCE_SHORT_XFER 0x08      /* force last short packet on write */
85 #define USBD_SYNCHRONOUS_SIG  0x10      /* if waiting for completion,
86                                                    * also take signals */
87 
88 #define USBD_NO_TIMEOUT 0
89 #define USBD_DEFAULT_TIMEOUT 5000 /* ms = 5 s */
90 #define   USBD_CONFIG_TIMEOUT  (3*USBD_DEFAULT_TIMEOUT)
91 
92 #define DEVINFOSIZE 1024
93 
94 usbd_status usbd_open_pipe_intr(struct usbd_interface *, uint8_t, uint8_t,
95     struct usbd_pipe **, void *, void *, uint32_t, usbd_callback, int);
96 usbd_status usbd_open_pipe(struct usbd_interface *, uint8_t, uint8_t,
97      struct usbd_pipe **);
98 void usbd_close_pipe(struct usbd_pipe *);
99 
100 usbd_status usbd_transfer(struct usbd_xfer *);
101 
102 void *usbd_get_buffer(struct usbd_xfer *);
103 struct usbd_pipe *usbd_get_pipe0(struct usbd_device *);
104 
105 int usbd_create_xfer(struct usbd_pipe *, size_t, unsigned int, unsigned int,
106     struct usbd_xfer **);
107 void usbd_destroy_xfer(struct usbd_xfer *);
108 
109 void usbd_setup_xfer(struct usbd_xfer *, void *, void *,
110     uint32_t, uint16_t, uint32_t, usbd_callback);
111 
112 void usbd_setup_default_xfer(struct usbd_xfer *, struct usbd_device *,
113     void *, uint32_t, usb_device_request_t *, void *,
114     uint32_t, uint16_t, usbd_callback);
115 
116 void usbd_setup_isoc_xfer(struct usbd_xfer *, void *, uint16_t *,
117     uint32_t, uint16_t, usbd_callback);
118 
119 void usbd_get_xfer_status(struct usbd_xfer *, void **,
120     void **, uint32_t *, usbd_status *);
121 
122 usb_endpoint_descriptor_t *usbd_interface2endpoint_descriptor
123     (struct usbd_interface *, uint8_t);
124 
125 void usbd_abort_pipe(struct usbd_pipe *);
126 void usbd_abort_default_pipe(struct usbd_device *);
127 
128 void usbd_suspend_pipe(struct usbd_pipe *);
129 void usbd_resume_pipe(struct usbd_pipe *);
130 
131 usbd_status usbd_clear_endpoint_stall(struct usbd_pipe *);
132 void usbd_clear_endpoint_stall_async(struct usbd_pipe *);
133 
134 void usbd_clear_endpoint_toggle(struct usbd_pipe *);
135 usbd_status usbd_endpoint_count(struct usbd_interface *, uint8_t *);
136 
137 usbd_status usbd_interface_count(struct usbd_device *, uint8_t *);
138 
139 void usbd_interface2device_handle(struct usbd_interface *, struct usbd_device **);
140 usbd_status usbd_device2interface_handle(struct usbd_device *,
141     uint8_t, struct usbd_interface **);
142 
143 struct usbd_device *usbd_pipe2device_handle(struct usbd_pipe *);
144 
145 usbd_status usbd_sync_transfer(struct usbd_xfer *);
146 usbd_status usbd_sync_transfer_sig(struct usbd_xfer *);
147 
148 usbd_status usbd_do_request(struct usbd_device *, usb_device_request_t *, void *);
149 usbd_status usbd_do_request_flags(struct usbd_device *, usb_device_request_t *,
150     void *, uint16_t, int *, uint32_t);
151 usbd_status usbd_do_request_len(struct usbd_device *dev,
152     usb_device_request_t *req, size_t len, void *data, uint16_t flags,
153     int *actlen, uint32_t timeout);
154 
155 usb_interface_descriptor_t *
156     usbd_get_interface_descriptor(struct usbd_interface *);
157 usb_endpoint_descriptor_t *
158     usbd_get_endpoint_descriptor(struct usbd_interface *, uint8_t);
159 
160 usb_config_descriptor_t *usbd_get_config_descriptor(struct usbd_device *);
161 usb_device_descriptor_t *usbd_get_device_descriptor(struct usbd_device *);
162 
163 usbd_status usbd_set_interface(struct usbd_interface *, int);
164 usbd_status usbd_get_interface(struct usbd_interface *, uint8_t *);
165 
166 int usbd_get_no_alts(usb_config_descriptor_t *, int);
167 
168 void usbd_fill_deviceinfo(struct usbd_device *, struct usb_device_info *, int);
169 int usbd_get_interface_altindex(struct usbd_interface *);
170 
171 usb_interface_descriptor_t *usbd_find_idesc(usb_config_descriptor_t *,
172     int, int);
173 usb_endpoint_descriptor_t *usbd_find_edesc(usb_config_descriptor_t *,
174     int, int, int);
175 
176 void usbd_dopoll(struct usbd_interface *);
177 void usbd_set_polling(struct usbd_device *, int);
178 
179 const char *usbd_errstr(usbd_status);
180 
181 void usbd_add_dev_event(int, struct usbd_device *);
182 void usbd_add_drv_event(int, struct usbd_device *, device_t);
183 
184 char *usbd_devinfo_alloc(struct usbd_device *, int);
185 void usbd_devinfo_free(char *);
186 
187 const struct usbd_quirks *usbd_get_quirks(struct usbd_device *);
188 
189 usbd_status usbd_reload_device_desc(struct usbd_device *);
190 
191 int usbd_ratecheck(struct timeval *);
192 
193 usbd_status usbd_get_string(struct usbd_device *, int, char *);
194 usbd_status usbd_get_string0(struct usbd_device *, int, char *, int);
195 
196 /* For use by HCI drivers, not USB device drivers */
197 void usbd_xfer_schedule_timeout(struct usbd_xfer *);
198 bool usbd_xfer_trycomplete(struct usbd_xfer *);
199 void usbd_xfer_abort(struct usbd_xfer *);
200 
201 /* Used to clear endpoint stalls from the softint */
202 void usbd_clear_endpoint_stall_task(void *);
203 
204 /*
205  * The usb_task structs form a queue of things to run in the USB event
206  * thread.  Normally this is just device discovery when a connect/disconnect
207  * has been detected.  But it may also be used by drivers that need to
208  * perform (short) tasks that must have a process context.
209  */
210 struct usb_task {
211           TAILQ_ENTRY(usb_task) next;
212           void (*fun)(void *);
213           void *arg;
214           volatile unsigned queue;
215           int flags;
216 };
217 #define   USB_TASKQ_HC                  0
218 #define   USB_TASKQ_DRIVER    1
219 #define   USB_NUM_TASKQS                2
220 #define   USB_TASKQ_NAMES               {"usbtask-hc", "usbtask-dr"}
221 #define   USB_TASKQ_MPSAFE    0x80
222 
223 void usb_add_task(struct usbd_device *, struct usb_task *, int);
224 bool usb_rem_task(struct usbd_device *, struct usb_task *);
225 bool usb_rem_task_wait(struct usbd_device *, struct usb_task *, int,
226     kmutex_t *);
227 bool usb_task_pending(struct usbd_device *, struct usb_task *);
228 #define usb_init_task(t, f, a, fl) ((t)->fun = (f), (t)->arg = (a), (t)->queue = USB_NUM_TASKQS, (t)->flags = (fl))
229 
230 bool usb_in_event_thread(device_t);
231 
232 struct usb_devno {
233           uint16_t ud_vendor;
234           uint16_t ud_product;
235 };
236 const struct usb_devno *usb_match_device(const struct usb_devno *,
237           u_int, u_int, uint16_t, uint16_t);
238 #define usb_lookup(tbl, vendor, product) \
239           usb_match_device((const struct usb_devno *)(tbl), sizeof(tbl) / sizeof((tbl)[0]), sizeof((tbl)[0]), (vendor), (product))
240 #define   USB_PRODUCT_ANY               0xffff
241 
242 /* compat callbacks */
243 void usbd_devinfo_vp(struct usbd_device *, char *, size_t, char *, size_t,
244     int, int);
245 int usbd_printBCD(char *, size_t, int);
246 
247 
248 /* NetBSD attachment information */
249 
250 /* Attach data */
251 struct usb_attach_arg {
252           int                           uaa_port;
253           int                           uaa_vendor;
254           int                           uaa_product;
255           int                           uaa_release;
256           struct usbd_device *          uaa_device;         /* current device */
257           int                           uaa_class;
258           int                           uaa_subclass;
259           int                           uaa_proto;
260           int                           uaa_usegeneric;
261 };
262 
263 struct usbif_attach_arg {
264           int                           uiaa_port;
265           int                           uiaa_configno;
266           int                           uiaa_ifaceno;
267           int                           uiaa_vendor;
268           int                           uiaa_product;
269           int                           uiaa_release;
270           struct usbd_device *          uiaa_device;        /* current device */
271 
272           struct usbd_interface *       uiaa_iface;         /* current interface */
273           int                           uiaa_class;
274           int                           uiaa_subclass;
275           int                           uiaa_proto;
276 
277           /* XXX need accounting for interfaces not matched to */
278 
279           struct usbd_interface **uiaa_ifaces;    /* all interfaces */
280           int                           uiaa_nifaces;       /* number of interfaces */
281 };
282 
283 /* Match codes. */
284 #define UMATCH_HIGHEST                                                15
285 /* First five codes is for a whole device. */
286 #define UMATCH_VENDOR_PRODUCT_REV                           14
287 #define UMATCH_VENDOR_PRODUCT                               13
288 #define UMATCH_VENDOR_DEVCLASS_DEVPROTO                     12
289 #define UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO                11
290 #define UMATCH_DEVCLASS_DEVSUBCLASS                         10
291 /* Next six codes are for interfaces. */
292 #define UMATCH_VENDOR_PRODUCT_REV_CONF_IFACE                 9
293 #define UMATCH_VENDOR_PRODUCT_CONF_IFACE                     8
294 #define UMATCH_VENDOR_IFACESUBCLASS_IFACEPROTO               7
295 #define UMATCH_VENDOR_IFACESUBCLASS                          6
296 #define UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO           5
297 #define UMATCH_IFACECLASS_IFACESUBCLASS                      4
298 #define UMATCH_IFACECLASS                                    3
299 #define UMATCH_IFACECLASS_GENERIC                            2
300 /* Generic driver */
301 #define UMATCH_GENERIC                                                 1
302 /* No match */
303 #define UMATCH_NONE                                          0
304 
305 
306 /*
307  * IPL_USB is defined as IPL_VM for drivers that have not been made MP safe.
308  * IPL_VM (currently) takes the kernel lock.
309  *
310  * Eventually, IPL_USB can/should be changed
311  */
312 #define IPL_USB IPL_VM
313 #define splhardusb splvm
314 
315 #define SOFTINT_USB SOFTINT_SERIAL
316 #define IPL_SOFTUSB IPL_SOFTSERIAL
317 #define splusb splsoftserial
318 
319 #endif /* _USBDI_H_ */
320