usbhid.c revision 1.9
1 /* $NetBSD: usbhid.c,v 1.9 1999/05/11 21:02:25 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss (at) netbsd.org). 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <sys/types.h> 42 #include <fcntl.h> 43 #include <unistd.h> 44 #include <err.h> 45 #include <ctype.h> 46 #include <errno.h> 47 #include <usb.h> 48 #include <dev/usb/usb.h> 49 #include <dev/usb/usbhid.h> 50 51 #define USBDEV "/dev/uhid0" 52 53 int verbose = 0; 54 int all = 0; 55 int noname = 0; 56 57 char **names; 58 int nnames; 59 60 void prbits(int bits, char **strs, int n); 61 void usage(void); 62 void dumpitem(char *label, struct hid_item *h); 63 void dumpitems(report_desc_t r); 64 void rev(struct hid_item **p); 65 void prdata(u_char *buf, struct hid_item *h); 66 void dumpdata(int f, report_desc_t r, int loop); 67 int gotname(char *n); 68 69 int 70 gotname(char *n) 71 { 72 int i; 73 74 for (i = 0; i < nnames; i++) 75 if (strcmp(names[i], n) == 0) 76 return 1; 77 return 0; 78 } 79 80 void 81 prbits(int bits, char **strs, int n) 82 { 83 int i; 84 85 for(i = 0; i < n; i++, bits >>= 1) 86 if (strs[i*2]) 87 printf("%s%s", i == 0 ? "" : ", ", strs[i*2 + (bits&1)]); 88 } 89 90 void 91 usage(void) 92 { 93 extern char *__progname; 94 95 fprintf(stderr, "Usage: %s -f device [-l] [-n] [-r] [-t tablefile] [-v] name ...\n", __progname); 96 fprintf(stderr, " %s -f device [-l] [-n] [-r] [-t tablefile] [-v] -a\n", __progname); 97 exit(1); 98 } 99 100 void 101 dumpitem(char *label, struct hid_item *h) 102 { 103 if ((h->flags & HIO_CONST) && !verbose) 104 return; 105 printf("%s size=%d count=%d page=%s usage=%s%s", label, 106 h->report_size, h->report_count, 107 usage_page(HID_PAGE(h->usage)), 108 usage_in_page(h->usage), 109 h->flags & HIO_CONST ? " Const" : ""); 110 printf(", logical range %d..%d", 111 h->logical_minimum, h->logical_maximum); 112 if (h->physical_minimum != h->physical_maximum) 113 printf(", physical range %d..%d", 114 h->physical_minimum, h->physical_maximum); 115 if (h->unit) 116 printf(", unit=0x%02x exp=%d", h->unit, h->unit_exponent); 117 printf("\n"); 118 } 119 120 void 121 dumpitems(report_desc_t r) 122 { 123 struct hid_data *d; 124 struct hid_item h; 125 int report_id, size; 126 127 for (d = hid_start_parse(r, ~0); hid_get_item(d, &h); ) { 128 switch (h.kind) { 129 case hid_collection: 130 printf("Collection page=%s usage=%s\n", 131 usage_page(HID_PAGE(h.usage)), 132 usage_in_page(h.usage)); 133 break; 134 case hid_endcollection: 135 printf("End collection\n"); 136 break; 137 case hid_input: 138 dumpitem("Input ", &h); 139 break; 140 case hid_output: 141 dumpitem("Output ", &h); 142 break; 143 case hid_feature: 144 dumpitem("Feature", &h); 145 break; 146 } 147 } 148 hid_end_parse(d); 149 size = hid_report_size(r, hid_input, &report_id); 150 size -= report_id != 0; 151 printf("Total input size %s%d bytes\n", 152 report_id && size ? "1+" : "", size); 153 154 size = hid_report_size(r, hid_output, &report_id); 155 size -= report_id != 0; 156 printf("Total output size %s%d bytes\n", 157 report_id && size ? "1+" : "", size); 158 159 size = hid_report_size(r, hid_feature, &report_id); 160 size -= report_id != 0; 161 printf("Total feature size %s%d bytes\n", 162 report_id && size ? "1+" : "", size); 163 } 164 165 void 166 rev(struct hid_item **p) 167 { 168 struct hid_item *cur, *prev, *next; 169 170 prev = 0; 171 cur = *p; 172 while(cur != 0) { 173 next = cur->next; 174 cur->next = prev; 175 prev = cur; 176 cur = next; 177 } 178 *p = prev; 179 } 180 181 void 182 prdata(u_char *buf, struct hid_item *h) 183 { 184 u_long data; 185 int i, pos; 186 187 pos = h->pos; 188 for (i = 0; i < h->report_count; i++) { 189 data = getdata(buf, h); 190 if (h->logical_minimum < 0) 191 printf("%ld", (long)data); 192 else 193 printf("%lu", data); 194 pos += h->report_size; 195 } 196 } 197 198 void 199 dumpdata(int f, report_desc_t rd, int loop) 200 { 201 struct hid_data *d; 202 struct hid_item h, *hids, *n; 203 int r, dlen; 204 u_char *dbuf; 205 static int one = 1; 206 u_int32_t colls[100]; 207 int sp = 0; 208 int report_id; 209 char namebuf[10000], *namep; 210 211 hids = 0; 212 for (d = hid_start_parse(rd, 1<<hid_input); 213 hid_get_item(d, &h); ) { 214 if (h.kind == hid_collection) 215 colls[++sp] = h.usage; 216 else if (h.kind == hid_endcollection) 217 --sp; 218 if (h.kind != hid_input || (h.flags & HIO_CONST)) 219 continue; 220 h.next = hids; 221 h.collection = colls[sp]; 222 hids = malloc(sizeof *hids); 223 *hids = h; 224 } 225 hid_end_parse(d); 226 rev(&hids); 227 dlen = hid_report_size(rd, hid_input, &report_id); 228 dbuf = malloc(dlen); 229 if (!loop) 230 if (ioctl(f, USB_SET_IMMED, &one) < 0) { 231 if (errno == EOPNOTSUPP) 232 warnx("device does not support immediate mode, only changes reported."); 233 else 234 err(1, "USB_SET_IMMED"); 235 } 236 do { 237 r = read(f, dbuf, dlen); 238 if (r != dlen) { 239 err(1, "bad read %d != %d", r, dlen); 240 } 241 for (n = hids; n; n = n->next) { 242 namep = namebuf; 243 namep += sprintf(namep, "%s:%s.", 244 usage_page(HID_PAGE(n->collection)), 245 usage_in_page(n->collection)); 246 namep += sprintf(namep, "%s:%s", 247 usage_page(HID_PAGE(n->usage)), 248 usage_in_page(n->usage)); 249 if (all || gotname(namebuf)) { 250 if (!noname) 251 printf("%s=", namebuf); 252 prdata(dbuf + (report_id != 0), n); 253 printf("\n"); 254 } 255 } 256 if (loop) 257 printf("\n"); 258 } while (loop); 259 free(dbuf); 260 } 261 262 int 263 main(int argc, char **argv) 264 { 265 int f; 266 report_desc_t r; 267 char devname[100], *dev = 0; 268 int ch; 269 extern char *optarg; 270 extern int optind; 271 int repdump = 0; 272 int loop = 0; 273 char *table = 0; 274 275 while ((ch = getopt(argc, argv, "af:lnrt:v")) != -1) { 276 switch(ch) { 277 case 'a': 278 all++; 279 break; 280 case 'f': 281 dev = optarg; 282 break; 283 case 'l': 284 loop ^= 1; 285 break; 286 case 'n': 287 noname++; 288 break; 289 case 'r': 290 repdump++; 291 break; 292 case 't': 293 table = optarg; 294 break; 295 case 'v': 296 verbose++; 297 break; 298 case '?': 299 default: 300 usage(); 301 } 302 } 303 argc -= optind; 304 argv += optind; 305 if (dev == 0) 306 usage(); 307 names = argv; 308 nnames = argc; 309 310 if (nnames == 0 && !all && !repdump) 311 usage(); 312 313 if (dev[0] != '/') { 314 if (isdigit(dev[0])) 315 sprintf(devname, "/dev/uhid%s", dev); 316 else 317 sprintf(devname, "/dev/%s", dev); 318 dev = devname; 319 } 320 321 init_hid(table); 322 323 f = open(dev, O_RDWR); 324 if (f < 0) 325 err(1, "%s", dev); 326 327 r = get_report_desc(f); 328 if (r == 0) 329 errx(1, "USB_GET_REPORT_DESC"); 330 331 if (repdump) { 332 printf("Report descriptor:\n"); 333 dumpitems(r); 334 } 335 if (nnames != 0 || all) 336 dumpdata(f, r, loop); 337 338 dispose_report_desc(r); 339 exit(0); 340 } 341
Indexes created Mon Sep 29 03:10:08 GMT 2025