1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 * 21 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 22 * Use is subject to license terms. 23 */ 24 25 #include <devfsadm.h> 26 #include <stdio.h> 27 #include <stdlib.h> 28 #include <limits.h> 29 #include <string.h> 30 #include <unistd.h> 31 #include <sys/types.h> 32 #include <sys/stat.h> 33 #include <strings.h> 34 35 extern char *devfsadm_get_devices_dir(); 36 static int usb_process(di_minor_t minor, di_node_t node); 37 38 static void ugen_create_link(char *p_path, char *node_name, 39 di_node_t node, di_minor_t minor); 40 41 42 /* Rules for creating links */ 43 static devfsadm_create_t usb_cbt[] = { 44 { "usb", NULL, "usb_ac", DRV_EXACT, 45 ILEVEL_0, usb_process }, 46 { "usb", NULL, "usb_as", DRV_EXACT, 47 ILEVEL_0, usb_process }, 48 { "usb", NULL, "ddivs_usbc", DRV_EXACT, 49 ILEVEL_0, usb_process }, 50 { "usb", NULL, "usbvc", DRV_EXACT, 51 ILEVEL_0, usb_process }, 52 { "usb", NULL, "hid", DRV_EXACT, 53 ILEVEL_0, usb_process }, 54 { "usb", NULL, "hwarc", DRV_EXACT, 55 ILEVEL_0, usb_process }, 56 { "usb", NULL, "wusb_ca", DRV_EXACT, 57 ILEVEL_0, usb_process }, 58 { "usb", DDI_NT_NEXUS, "hubd", DRV_EXACT|TYPE_EXACT, 59 ILEVEL_0, usb_process }, 60 { "usb", DDI_NT_NEXUS, "ohci", DRV_EXACT|TYPE_EXACT, 61 ILEVEL_0, usb_process }, 62 { "usb", DDI_NT_NEXUS, "ehci", DRV_EXACT|TYPE_EXACT, 63 ILEVEL_0, usb_process }, 64 { "usb", DDI_NT_SCSI_NEXUS, "scsa2usb", DRV_EXACT|TYPE_EXACT, 65 ILEVEL_0, usb_process }, 66 { "usb", DDI_NT_UGEN, "scsa2usb", DRV_EXACT|TYPE_EXACT, 67 ILEVEL_0, usb_process }, 68 { "usb", DDI_NT_NEXUS, "uhci", DRV_EXACT|TYPE_EXACT, 69 ILEVEL_0, usb_process }, 70 { "usb", DDI_NT_UGEN, "ugen", DRV_EXACT|TYPE_EXACT, 71 ILEVEL_0, usb_process }, 72 { "usb", DDI_NT_NEXUS, "usb_mid", DRV_EXACT|TYPE_EXACT, 73 ILEVEL_0, usb_process }, 74 { "usb", DDI_NT_UGEN, "usb_mid", DRV_EXACT|TYPE_EXACT, 75 ILEVEL_0, usb_process }, 76 { "usb", DDI_NT_PRINTER, "usbprn", DRV_EXACT|TYPE_EXACT, 77 ILEVEL_0, usb_process }, 78 { "usb", DDI_NT_UGEN, "usbprn", DRV_EXACT|TYPE_EXACT, 79 ILEVEL_0, usb_process }, 80 { "usb", DDI_NT_NEXUS, "hwahc", DRV_EXACT|TYPE_EXACT, 81 ILEVEL_0, usb_process }, 82 }; 83 84 /* For debug printing (-V filter) */ 85 static char *debug_mid = "usb_mid"; 86 87 DEVFSADM_CREATE_INIT_V0(usb_cbt); 88 89 /* USB device links */ 90 #define USB_LINK_RE_AUDIO "^usb/audio[0-9]+$" 91 #define USB_LINK_RE_AUDIOMUX "^usb/audio-mux[0-9]+$" 92 #define USB_LINK_RE_AUDIOCTL "^usb/audio-control[0-9]+$" 93 #define USB_LINK_RE_AUDIOSTREAM "^usb/audio-stream[0-9]+$" 94 #define USB_LINK_RE_DDIVS_USBC "^usb/ddivs_usbc[0-9]+$" 95 #define USB_LINK_RE_VIDEO "^usb/video[0-9]+$" 96 #define USB_LINK_RE_VIDEO2 "^video[0-9]+$" 97 #define USB_LINK_RE_DEVICE "^usb/device[0-9]+$" 98 #define USB_LINK_RE_HID "^usb/hid[0-9]+$" 99 #define USB_LINK_RE_HUB "^usb/hub[0-9]+$" 100 #define USB_LINK_RE_MASS_STORE "^usb/mass-storage[0-9]+$" 101 #define USB_LINK_RE_UGEN "^usb/[0-9,a-f]+\\.[0-9,a-f]+/[0-9]+/.+$" 102 #define USB_LINK_RE_USBPRN "^usb/printer[0-9]+$" 103 #define USB_LINK_RE_WHOST "^usb/whost[0-9]+$" 104 #define USB_LINK_RE_HWARC "^usb/hwarc[0-9]+$" 105 #define USB_LINK_RE_WUSB_CA "^usb/wusb_ca[0-9]+$" 106 107 /* Rules for removing links */ 108 static devfsadm_remove_t usb_remove_cbt[] = { 109 { "usb", USB_LINK_RE_AUDIO, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 110 devfsadm_rm_all }, 111 { "usb", USB_LINK_RE_AUDIOMUX, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 112 devfsadm_rm_all }, 113 { "usb", USB_LINK_RE_AUDIOCTL, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 114 devfsadm_rm_all }, 115 { "usb", USB_LINK_RE_AUDIOSTREAM, RM_POST | RM_HOT | RM_ALWAYS, 116 ILEVEL_0, devfsadm_rm_all }, 117 { "usb", USB_LINK_RE_DDIVS_USBC, RM_POST | RM_HOT | RM_ALWAYS, 118 ILEVEL_0, devfsadm_rm_all }, 119 { "usb", USB_LINK_RE_VIDEO, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 120 devfsadm_rm_all }, 121 { "usb", USB_LINK_RE_VIDEO2, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 122 devfsadm_rm_all }, 123 { "usb", USB_LINK_RE_DEVICE, RM_POST | RM_HOT, ILEVEL_0, 124 devfsadm_rm_all }, 125 { "usb", USB_LINK_RE_HID, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 126 devfsadm_rm_all }, 127 { "usb", USB_LINK_RE_HUB, RM_POST | RM_HOT, ILEVEL_0, devfsadm_rm_all }, 128 { "usb", USB_LINK_RE_MASS_STORE, RM_POST | RM_HOT | RM_ALWAYS, 129 ILEVEL_0, devfsadm_rm_all }, 130 { "usb", USB_LINK_RE_UGEN, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 131 devfsadm_rm_all }, 132 { "usb", USB_LINK_RE_USBPRN, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 133 devfsadm_rm_link }, 134 { "usb", USB_LINK_RE_WHOST, RM_POST | RM_HOT, ILEVEL_0, 135 devfsadm_rm_all }, 136 { "usb", USB_LINK_RE_HWARC, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 137 devfsadm_rm_all }, 138 { "usb", USB_LINK_RE_WUSB_CA, RM_POST | RM_HOT | RM_ALWAYS, ILEVEL_0, 139 devfsadm_rm_all } 140 }; 141 142 /* 143 * Rules for different USB devices except ugen which is dynamically 144 * created 145 */ 146 static devfsadm_enumerate_t audio_rules[1] = 147 {"^usb$/^audio([0-9]+)$", 1, MATCH_ALL}; 148 static devfsadm_enumerate_t audio_mux_rules[1] = 149 {"^usb$/^audio-mux([0-9]+)$", 1, MATCH_ALL}; 150 static devfsadm_enumerate_t audio_control_rules[1] = 151 {"^usb$/^audio-control([0-9]+)$", 1, MATCH_ALL}; 152 static devfsadm_enumerate_t audio_stream_rules[1] = 153 {"^usb$/^audio-stream([0-9]+)$", 1, MATCH_ALL}; 154 static devfsadm_enumerate_t ddivs_usbc_rules[1] = 155 {"^usb$/^ddivs_usbc([0-9]+)$", 1, MATCH_ALL}; 156 static devfsadm_enumerate_t video_rules[1] = 157 {"^usb$/^video([0-9]+)$", 1, MATCH_ALL}; 158 static devfsadm_enumerate_t device_rules[1] = 159 {"^usb$/^device([0-9]+)$", 1, MATCH_ALL}; 160 static devfsadm_enumerate_t hid_rules[1] = 161 {"^usb$/^hid([0-9]+)$", 1, MATCH_ALL}; 162 static devfsadm_enumerate_t hub_rules[1] = 163 {"^usb$/^hub([0-9]+)$", 1, MATCH_ALL}; 164 static devfsadm_enumerate_t mass_storage_rules[1] = 165 {"^usb$/^mass-storage([0-9]+)$", 1, MATCH_ALL}; 166 static devfsadm_enumerate_t usbprn_rules[1] = 167 {"^usb$/^printer([0-9]+)$", 1, MATCH_ALL}; 168 static devfsadm_enumerate_t whost_rules[1] = 169 {"^usb$/^whost([0-9]+)$", 1, MATCH_ALL}; 170 static devfsadm_enumerate_t hwarc_rules[1] = 171 {"^usb$/^hwarc([0-9]+)$", 1, MATCH_ALL}; 172 static devfsadm_enumerate_t wusb_ca_rules[1] = 173 {"^usb$/^wusb_ca([0-9]+)$", 1, MATCH_ALL}; 174 175 DEVFSADM_REMOVE_INIT_V0(usb_remove_cbt); 176 177 int 178 minor_init(void) 179 { 180 devfsadm_print(debug_mid, "usb_link: minor_init\n"); 181 return (DEVFSADM_SUCCESS); 182 } 183 184 int 185 minor_fini(void) 186 { 187 devfsadm_print(debug_mid, "usb_link: minor_fini\n"); 188 return (DEVFSADM_SUCCESS); 189 } 190 191 typedef enum { 192 DRIVER_HUBD = 0, 193 DRIVER_OHCI = 1, 194 DRIVER_EHCI = 2, 195 DRIVER_UHCI = 3, 196 DRIVER_USB_AC = 4, 197 DRIVER_USB_AS = 5, 198 DRIVER_HID = 6, 199 DRIVER_USB_MID = 7, 200 DRIVER_DDIVS_USBC = 8, 201 DRIVER_SCSA2USB = 9, 202 DRIVER_USBPRN = 10, 203 DRIVER_UGEN = 11, 204 DRIVER_VIDEO = 12, 205 DRIVER_HWAHC = 13, 206 DRIVER_HWARC = 14, 207 DRIVER_WUSB_CA = 15, 208 DRIVER_UNKNOWN = 16 209 } driver_defs_t; 210 211 typedef struct { 212 char *driver_name; 213 int index; 214 } driver_name_table_entry_t; 215 216 driver_name_table_entry_t driver_name_table[] = { 217 { "hubd", DRIVER_HUBD }, 218 { "ohci", DRIVER_OHCI }, 219 { "ehci", DRIVER_EHCI }, 220 { "uhci", DRIVER_UHCI }, 221 { "usb_ac", DRIVER_USB_AC }, 222 { "usb_as", DRIVER_USB_AS }, 223 { "hid", DRIVER_HID }, 224 { "usb_mid", DRIVER_USB_MID }, 225 { "ddivs_usbc", DRIVER_DDIVS_USBC }, 226 { "scsa2usb", DRIVER_SCSA2USB }, 227 { "usbprn", DRIVER_USBPRN }, 228 { "ugen", DRIVER_UGEN }, 229 { "usbvc", DRIVER_VIDEO }, 230 { "hwahc", DRIVER_HWAHC }, 231 { "hwarc", DRIVER_HWARC }, 232 { "wusb_ca", DRIVER_WUSB_CA }, 233 { NULL, DRIVER_UNKNOWN } 234 }; 235 236 /* 237 * This function is called for every usb minor node. 238 * Calls enumerate to assign a logical usb id, and then 239 * devfsadm_mklink to make the link. 240 */ 241 static int 242 usb_process(di_minor_t minor, di_node_t node) 243 { 244 devfsadm_enumerate_t rules[1]; 245 char *l_path, *p_path, *buf, *devfspath; 246 char *minor_nm, *drvr_nm, *name = (char *)NULL; 247 int i, index; 248 int flags = 0; 249 int create_secondary_link = 0; 250 251 minor_nm = di_minor_name(minor); 252 drvr_nm = di_driver_name(node); 253 if ((minor_nm == NULL) || (drvr_nm == NULL)) { 254 return (DEVFSADM_CONTINUE); 255 } 256 257 devfsadm_print(debug_mid, "usb_process: minor=%s node=%s type=%s\n", 258 minor_nm, di_node_name(node), di_minor_nodetype(minor)); 259 260 devfspath = di_devfs_path(node); 261 if (devfspath == NULL) { 262 devfsadm_print(debug_mid, 263 "USB_process: devfspath is NULL\n"); 264 return (DEVFSADM_CONTINUE); 265 } 266 267 l_path = (char *)malloc(PATH_MAX); 268 if (l_path == NULL) { 269 di_devfs_path_free(devfspath); 270 devfsadm_print(debug_mid, "usb_process: malloc() failed\n"); 271 return (DEVFSADM_CONTINUE); 272 } 273 274 p_path = (char *)malloc(PATH_MAX); 275 if (p_path == NULL) { 276 devfsadm_print(debug_mid, "usb_process: malloc() failed\n"); 277 di_devfs_path_free(devfspath); 278 free(l_path); 279 return (DEVFSADM_CONTINUE); 280 } 281 282 (void) strcpy(p_path, devfspath); 283 (void) strcat(p_path, ":"); 284 (void) strcat(p_path, minor_nm); 285 di_devfs_path_free(devfspath); 286 287 devfsadm_print(debug_mid, "usb_process: path %s\n", p_path); 288 289 for (i = 0; ; i++) { 290 if ((driver_name_table[i].driver_name == NULL) || 291 (strcmp(drvr_nm, driver_name_table[i].driver_name) == 0)) { 292 index = driver_name_table[i].index; 293 break; 294 } 295 } 296 297 if (strcmp(di_minor_nodetype(minor), DDI_NT_UGEN) == 0) { 298 ugen_create_link(p_path, minor_nm, node, minor); 299 free(l_path); 300 free(p_path); 301 return (DEVFSADM_CONTINUE); 302 } 303 304 /* Figure out which rules to apply */ 305 switch (index) { 306 case DRIVER_HUBD: 307 case DRIVER_OHCI: 308 case DRIVER_EHCI: 309 case DRIVER_UHCI: 310 rules[0] = hub_rules[0]; /* For HUBs */ 311 name = "hub"; 312 313 break; 314 case DRIVER_USB_AC: 315 if (strcmp(minor_nm, "sound,audio") == 0) { 316 rules[0] = audio_rules[0]; 317 name = "audio"; /* For audio */ 318 create_secondary_link = 1; 319 } else if (strcmp(minor_nm, "sound,audioctl") == 0) { 320 rules[0] = audio_control_rules[0]; 321 name = "audio-control"; /* For audio */ 322 create_secondary_link = 1; 323 } else if (strcmp(minor_nm, "mux") == 0) { 324 rules[0] = audio_mux_rules[0]; 325 name = "audio-mux"; /* For audio */ 326 } else { 327 free(l_path); 328 free(p_path); 329 return (DEVFSADM_CONTINUE); 330 } 331 break; 332 case DRIVER_USB_AS: 333 rules[0] = audio_stream_rules[0]; 334 name = "audio-stream"; /* For audio */ 335 break; 336 case DRIVER_VIDEO: 337 rules[0] = video_rules[0]; 338 name = "video"; /* For video */ 339 create_secondary_link = 1; 340 break; 341 case DRIVER_HID: 342 rules[0] = hid_rules[0]; 343 name = "hid"; /* For HIDs */ 344 break; 345 case DRIVER_USB_MID: 346 rules[0] = device_rules[0]; 347 name = "device"; /* For other USB devices */ 348 break; 349 case DRIVER_DDIVS_USBC: 350 rules[0] = ddivs_usbc_rules[0]; 351 name = "device"; /* For other USB devices */ 352 break; 353 case DRIVER_SCSA2USB: 354 rules[0] = mass_storage_rules[0]; 355 name = "mass-storage"; /* For mass-storage devices */ 356 break; 357 case DRIVER_USBPRN: 358 rules[0] = usbprn_rules[0]; 359 name = "printer"; 360 break; 361 case DRIVER_HWAHC: 362 if (strcmp(minor_nm, "hwahc") == 0) { 363 rules[0] = whost_rules[0]; 364 name = "whost"; /* For HWA HC */ 365 } else if (strcmp(minor_nm, "hubd") == 0) { 366 rules[0] = hub_rules[0]; 367 name = "hub"; /* For HWA HC */ 368 } else { 369 free(l_path); 370 free(p_path); 371 return (DEVFSADM_CONTINUE); 372 } 373 break; 374 case DRIVER_HWARC: 375 rules[0] = hwarc_rules[0]; 376 name = "hwarc"; /* For UWB HWA Radio Controllers */ 377 break; 378 case DRIVER_WUSB_CA: 379 rules[0] = wusb_ca_rules[0]; 380 name = "wusb_ca"; /* for wusb cable association */ 381 break; 382 default: 383 devfsadm_print(debug_mid, "usb_process: unknown driver=%s\n", 384 drvr_nm); 385 free(l_path); 386 free(p_path); 387 return (DEVFSADM_CONTINUE); 388 } 389 390 /* 391 * build the physical path from the components. 392 * find the logical usb id, and stuff it in buf 393 */ 394 if (devfsadm_enumerate_int(p_path, 0, &buf, rules, 1)) { 395 devfsadm_print(debug_mid, "usb_process: exit/continue\n"); 396 free(l_path); 397 free(p_path); 398 return (DEVFSADM_CONTINUE); 399 } 400 401 (void) snprintf(l_path, PATH_MAX, "usb/%s%s", name, buf); 402 403 devfsadm_print(debug_mid, "usb_process: p_path=%s buf=%s\n", 404 p_path, buf); 405 406 free(buf); 407 408 devfsadm_print(debug_mid, "mklink %s -> %s\n", l_path, p_path); 409 410 (void) devfsadm_mklink(l_path, node, minor, flags); 411 412 if (create_secondary_link) { 413 /* 414 * Create secondary links to make newly hotplugged 415 * usb audio device the primary device. 416 */ 417 if (strcmp(name, "audio") == 0) { 418 (void) devfsadm_secondary_link("audio", l_path, 0); 419 } else if (strcmp(name, "audio-control") == 0) { 420 (void) devfsadm_secondary_link("audioctl", l_path, 0); 421 } else if (strcmp(name, "video") == 0) { 422 (void) devfsadm_secondary_link(l_path + 4, l_path, 0); 423 } 424 } 425 426 free(p_path); 427 free(l_path); 428 429 return (DEVFSADM_CONTINUE); 430 } 431 432 static void 433 ugen_create_link(char *p_path, char *node_name, 434 di_node_t node, di_minor_t minor) 435 { 436 char *buf, s[MAXPATHLEN]; 437 char *lasts = s; 438 char *vid, *pid; 439 char *minor_name; 440 char ugen_RE[128]; 441 devfsadm_enumerate_t ugen_rules[1]; 442 char l_path[PATH_MAX]; 443 int flags = 0; 444 445 devfsadm_print(debug_mid, "ugen_create_link: p_path=%s name=%s\n", 446 p_path, node_name); 447 448 (void) strlcpy(s, node_name, sizeof (s)); 449 450 /* get vid, pid and minor name strings */ 451 vid = strtok_r(lasts, ".", &lasts); 452 pid = strtok_r(NULL, ".", &lasts); 453 minor_name = lasts; 454 455 if ((vid == NULL) || (pid == NULL) || (minor_name == NULL)) { 456 return; 457 } 458 459 /* create regular expression contain vid and pid */ 460 (void) snprintf(ugen_RE, sizeof (ugen_RE), 461 "^usb$/^%s\\.%s$/^([0-9]+)$", vid, pid); 462 devfsadm_print(debug_mid, 463 "ugen_create_link: ugen_RE=%s minor_name=%s\n", 464 ugen_RE, minor_name); 465 466 bzero(ugen_rules, sizeof (ugen_rules)); 467 468 ugen_rules[0].re = ugen_RE; 469 ugen_rules[0].subexp = 1; 470 ugen_rules[0].flags = MATCH_ADDR; 471 472 /* 473 * build the physical path from the components. 474 * find the logical usb id, and stuff it in buf 475 */ 476 if (devfsadm_enumerate_int(p_path, 0, &buf, ugen_rules, 1)) { 477 devfsadm_print(debug_mid, "ugen_create_link: exit/continue\n"); 478 return; 479 } 480 481 (void) snprintf(l_path, sizeof (l_path), "usb/%s.%s/%s/%s", 482 vid, pid, buf, minor_name); 483 484 devfsadm_print(debug_mid, "mklink %s -> %s\n", l_path, p_path); 485 486 (void) devfsadm_mklink(l_path, node, minor, flags); 487 488 free(buf); 489 } 490