source: mainline/uspace/app/usbinfo/main.c@ d7c72db

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since d7c72db was 7d521e24, checked in by Vojtech Horky <vojtechhorky@…>, 14 years ago

libusbdev uses include usb/dev
  • Property mode set to 100644
File size: 7.7 KB
Line 
1/*
2 * Copyright (c) 2010-2011 Vojtech Horky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - 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 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup usbinfo
30 * @{
31 */
32/**
33 * @file
34 * USB querying.
35 */
36
37#include <stdio.h>
38#include <stdlib.h>
39#include <errno.h>
40#include <str_error.h>
41#include <bool.h>
42#include <getopt.h>
43#include <devman.h>
44#include <devmap.h>
45#include <usb/dev/hc.h>
46#include <usb/dev/pipes.h>
47#include <usb/host.h>
48#include <usb/driver.h>
49#include "usbinfo.h"
50
51static bool try_parse_class_and_address(const char *path,
52 devman_handle_t *out_hc_handle, usb_address_t *out_device_address)
53{
54 size_t class_index;
55 size_t address;
56 int rc;
57 char *ptr;
58
59 rc = str_size_t(path, &ptr, 10, false, &class_index);
60 if (rc != EOK) {
61 return false;
62 }
63 if ((*ptr == ':') || (*ptr == '.')) {
64 ptr++;
65 } else {
66 return false;
67 }
68 rc = str_size_t(ptr, NULL, 10, true, &address);
69 if (rc != EOK) {
70 return false;
71 }
72 rc = usb_ddf_get_hc_handle_by_class(class_index, out_hc_handle);
73 if (rc != EOK) {
74 return false;
75 }
76 if (out_device_address != NULL) {
77 *out_device_address = (usb_address_t) address;
78 }
79 return true;
80}
81
82static bool resolve_hc_handle_and_dev_addr(const char *devpath,
83 devman_handle_t *out_hc_handle, usb_address_t *out_device_address)
84{
85 int rc;
86
87 /* Hack for QEMU to save-up on typing ;-). */
88 if (str_cmp(devpath, "qemu") == 0) {
89 devpath = "/hw/pci0/00:01.2/uhci-rh/usb00_a1";
90 }
91
92 /* Hack for virtual keyboard. */
93 if (str_cmp(devpath, "virt") == 0) {
94 devpath = "/virt/usbhc/usb00_a1/usb00_a2";
95 }
96
97 if (try_parse_class_and_address(devpath,
98 out_hc_handle, out_device_address)) {
99 return true;
100 }
101
102 char *path = str_dup(devpath);
103 if (path == NULL) {
104 return ENOMEM;
105 }
106
107 devman_handle_t hc = 0;
108 bool hc_found = false;
109 usb_address_t addr = 0;
110 bool addr_found = false;
111
112 /* Remove suffixes and hope that we will encounter device node. */
113 while (str_length(path) > 0) {
114 /* Get device handle first. */
115 devman_handle_t dev_handle;
116 rc = devman_device_get_handle(path, &dev_handle, 0);
117 if (rc != EOK) {
118 free(path);
119 return false;
120 }
121
122 /* Try to find its host controller. */
123 if (!hc_found) {
124 rc = usb_hc_find(dev_handle, &hc);
125 if (rc == EOK) {
126 hc_found = true;
127 }
128 }
129 /* Try to get its address. */
130 if (!addr_found) {
131 addr = usb_device_get_assigned_address(dev_handle);
132 if (addr >= 0) {
133 addr_found = true;
134 }
135 }
136
137 /* Speed-up. */
138 if (hc_found && addr_found) {
139 break;
140 }
141
142 /* Remove the last suffix. */
143 char *slash_pos = str_rchr(path, '/');
144 if (slash_pos != NULL) {
145 *slash_pos = 0;
146 }
147 }
148
149 free(path);
150
151 if (hc_found && addr_found) {
152 if (out_hc_handle != NULL) {
153 *out_hc_handle = hc;
154 }
155 if (out_device_address != NULL) {
156 *out_device_address = addr;
157 }
158 return true;
159 } else {
160 return false;
161 }
162}
163
164static void print_usage(char *app_name)
165{
166#define _INDENT " "
167#define _OPTION(opt, description) \
168 printf(_INDENT opt "\n" _INDENT _INDENT description "\n")
169
170 printf(NAME ": query USB devices for descriptors\n\n");
171 printf("Usage: %s [options] device [device [device [ ... ]]]\n",
172 app_name);
173 printf(_INDENT "The device is a devman path to the device.\n");
174
175 _OPTION("-h --help", "Print this help and exit.");
176 _OPTION("-i --identification", "Brief device identification.");
177 _OPTION("-m --match-ids", "Print match ids generated for the device.");
178 _OPTION("-t --descriptor-tree", "Print descriptor tree.");
179 _OPTION("-T --descriptor-tree-full", "Print detailed descriptor tree");
180 _OPTION("-s --strings", "Try to print all string descriptors.");
181 _OPTION("-S --status", "Get status of the device.");
182
183 printf("\n");
184 printf("If no option is specified, `-i' is considered default.\n");
185 printf("\n");
186
187#undef _OPTION
188#undef _INDENT
189}
190
191static struct option long_options[] = {
192 {"help", no_argument, NULL, 'h'},
193 {"identification", no_argument, NULL, 'i'},
194 {"match-ids", no_argument, NULL, 'm'},
195 {"descriptor-tree", no_argument, NULL, 't'},
196 {"descriptor-tree-full", no_argument, NULL, 'T'},
197 {"strings", no_argument, NULL, 's'},
198 {"status", no_argument, NULL, 'S'},
199 {0, 0, NULL, 0}
200};
201static const char *short_options = "himtTsS";
202
203static usbinfo_action_t actions[] = {
204 {
205 .opt = 'i',
206 .action = dump_short_device_identification,
207 .active = false
208 },
209 {
210 .opt = 'm',
211 .action = dump_device_match_ids,
212 .active = false
213 },
214 {
215 .opt = 't',
216 .action = dump_descriptor_tree_brief,
217 .active = false
218 },
219 {
220 .opt = 'T',
221 .action = dump_descriptor_tree_full,
222 .active = false
223 },
224 {
225 .opt = 's',
226 .action = dump_strings,
227 .active = false
228 },
229 {
230 .opt = 'S',
231 .action = dump_status,
232 .active = false
233 },
234 {
235 .opt = 0
236 }
237};
238
239int main(int argc, char *argv[])
240{
241 if (argc <= 1) {
242 print_usage(argv[0]);
243 return -1;
244 }
245
246 /*
247 * Process command-line options. They determine what shall be
248 * done with the device.
249 */
250 int opt;
251 do {
252 opt = getopt_long(argc, argv,
253 short_options, long_options, NULL);
254 switch (opt) {
255 case -1:
256 break;
257 case '?':
258 print_usage(argv[0]);
259 return 1;
260 case 'h':
261 print_usage(argv[0]);
262 return 0;
263 default: {
264 int idx = 0;
265 while (actions[idx].opt != 0) {
266 if (actions[idx].opt == opt) {
267 actions[idx].active = true;
268 break;
269 }
270 idx++;
271 }
272 break;
273 }
274 }
275 } while (opt > 0);
276
277 /* Set the default action. */
278 int idx = 0;
279 bool something_active = false;
280 while (actions[idx].opt != 0) {
281 if (actions[idx].active) {
282 something_active = true;
283 break;
284 }
285 idx++;
286 }
287 if (!something_active) {
288 actions[0].active = true;
289 }
290
291 /*
292 * Go through all devices given on the command line and run the
293 * specified actions.
294 */
295 int i;
296 for (i = optind; i < argc; i++) {
297 char *devpath = argv[i];
298
299 /* The initialization is here only to make compiler happy. */
300 devman_handle_t hc_handle = 0;
301 usb_address_t dev_addr = 0;
302 bool found = resolve_hc_handle_and_dev_addr(devpath,
303 &hc_handle, &dev_addr);
304 if (!found) {
305 fprintf(stderr, NAME ": device `%s' not found "
306 "or not of USB kind, skipping.\n",
307 devpath);
308 continue;
309 }
310
311 usbinfo_device_t *dev = prepare_device(devpath,
312 hc_handle, dev_addr);
313 if (dev == NULL) {
314 continue;
315 }
316
317 /* Run actions the user specified. */
318 printf("%s\n", devpath);
319
320 int action = 0;
321 while (actions[action].opt != 0) {
322 if (actions[action].active) {
323 actions[action].action(dev);
324 }
325 action++;
326 }
327
328 /* Destroy the control pipe (close the session etc.). */
329 destroy_device(dev);
330 }
331
332 return 0;
333}
334
335
336/** @}
337 */
Note: See TracBrowser for help on using the repository browser.