1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Probe for 8250/16550-type ISAPNP serial ports. 4 * 5 * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o. 6 * 7 * Copyright (C) 2001 Russell King, All Rights Reserved. 8 * 9 * Ported to the Linux PnP Layer - (C) Adam Belay. 10 */ 11 #include <linux/module.h> 12 #include <linux/pci.h> 13 #include <linux/pm.h> 14 #include <linux/pnp.h> 15 #include <linux/string.h> 16 #include <linux/kernel.h> 17 #include <linux/property.h> 18 #include <linux/serial_core.h> 19 #include <linux/bitops.h> 20 21 #include <asm/byteorder.h> 22 23 #include "8250.h" 24 25 #define UNKNOWN_DEV 0x3000 26 #define CIR_PORT 0x0800 27 28 static const struct pnp_device_id pnp_dev_table[] = { 29 /* Archtek America Corp. */ 30 /* Archtek SmartLink Modem 3334BT Plug & Play */ 31 { "AAC000F", 0 }, 32 /* Anchor Datacomm BV */ 33 /* SXPro 144 External Data Fax Modem Plug & Play */ 34 { "ADC0001", 0 }, 35 /* SXPro 288 External Data Fax Modem Plug & Play */ 36 { "ADC0002", 0 }, 37 /* PROLiNK 1456VH ISA PnP K56flex Fax Modem */ 38 { "AEI0250", 0 }, 39 /* Actiontec ISA PNP 56K X2 Fax Modem */ 40 { "AEI1240", 0 }, 41 /* Rockwell 56K ACF II Fax+Data+Voice Modem */ 42 { "AKY1021", 0 /*SPCI_FL_NO_SHIRQ*/ }, 43 /* 44 * ALi Fast Infrared Controller 45 * Native driver (ali-ircc) is broken so at least 46 * it can be used with irtty-sir. 47 */ 48 { "ALI5123", 0 }, 49 /* AZT3005 PnP SOUND DEVICE */ 50 { "AZT4001", 0 }, 51 /* Best Data Products Inc. Smart One 336F PnP Modem */ 52 { "BDP3336", 0 }, 53 /* Boca Research */ 54 /* Boca Complete Ofc Communicator 14.4 Data-FAX */ 55 { "BRI0A49", 0 }, 56 /* Boca Research 33,600 ACF Modem */ 57 { "BRI1400", 0 }, 58 /* Boca 33.6 Kbps Internal FD34FSVD */ 59 { "BRI3400", 0 }, 60 /* Computer Peripherals Inc */ 61 /* EuroViVa CommCenter-33.6 SP PnP */ 62 { "CPI4050", 0 }, 63 /* Creative Labs */ 64 /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */ 65 { "CTL3001", 0 }, 66 /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */ 67 { "CTL3011", 0 }, 68 /* Davicom ISA 33.6K Modem */ 69 { "DAV0336", 0 }, 70 /* Creative */ 71 /* Creative Modem Blaster Flash56 DI5601-1 */ 72 { "DMB1032", 0 }, 73 /* Creative Modem Blaster V.90 DI5660 */ 74 { "DMB2001", 0 }, 75 /* E-Tech */ 76 /* E-Tech CyberBULLET PC56RVP */ 77 { "ETT0002", 0 }, 78 /* FUJITSU */ 79 /* Fujitsu 33600 PnP-I2 R Plug & Play */ 80 { "FUJ0202", 0 }, 81 /* Fujitsu FMV-FX431 Plug & Play */ 82 { "FUJ0205", 0 }, 83 /* Fujitsu 33600 PnP-I4 R Plug & Play */ 84 { "FUJ0206", 0 }, 85 /* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */ 86 { "FUJ0209", 0 }, 87 /* Archtek America Corp. */ 88 /* Archtek SmartLink Modem 3334BT Plug & Play */ 89 { "GVC000F", 0 }, 90 /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */ 91 { "GVC0303", 0 }, 92 /* Hayes */ 93 /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */ 94 { "HAY0001", 0 }, 95 /* Hayes Optima 336 V.34 + FAX + Voice PnP */ 96 { "HAY000C", 0 }, 97 /* Hayes Optima 336B V.34 + FAX + Voice PnP */ 98 { "HAY000D", 0 }, 99 /* Hayes Accura 56K Ext Fax Modem PnP */ 100 { "HAY5670", 0 }, 101 /* Hayes Accura 56K Ext Fax Modem PnP */ 102 { "HAY5674", 0 }, 103 /* Hayes Accura 56K Fax Modem PnP */ 104 { "HAY5675", 0 }, 105 /* Hayes 288, V.34 + FAX */ 106 { "HAYF000", 0 }, 107 /* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */ 108 { "HAYF001", 0 }, 109 /* IBM */ 110 /* IBM Thinkpad 701 Internal Modem Voice */ 111 { "IBM0033", 0 }, 112 /* Intermec */ 113 /* Intermec CV60 touchscreen port */ 114 { "PNP4972", 0 }, 115 /* Intertex */ 116 /* Intertex 28k8 33k6 Voice EXT PnP */ 117 { "IXDC801", 0 }, 118 /* Intertex 33k6 56k Voice EXT PnP */ 119 { "IXDC901", 0 }, 120 /* Intertex 28k8 33k6 Voice SP EXT PnP */ 121 { "IXDD801", 0 }, 122 /* Intertex 33k6 56k Voice SP EXT PnP */ 123 { "IXDD901", 0 }, 124 /* Intertex 28k8 33k6 Voice SP INT PnP */ 125 { "IXDF401", 0 }, 126 /* Intertex 28k8 33k6 Voice SP EXT PnP */ 127 { "IXDF801", 0 }, 128 /* Intertex 33k6 56k Voice SP EXT PnP */ 129 { "IXDF901", 0 }, 130 /* Kortex International */ 131 /* KORTEX 28800 Externe PnP */ 132 { "KOR4522", 0 }, 133 /* KXPro 33.6 Vocal ASVD PnP */ 134 { "KORF661", 0 }, 135 /* Lasat */ 136 /* LASAT Internet 33600 PnP */ 137 { "LAS4040", 0 }, 138 /* Lasat Safire 560 PnP */ 139 { "LAS4540", 0 }, 140 /* Lasat Safire 336 PnP */ 141 { "LAS5440", 0 }, 142 /* Microcom, Inc. */ 143 /* Microcom TravelPorte FAST V.34 Plug & Play */ 144 { "MNP0281", 0 }, 145 /* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */ 146 { "MNP0336", 0 }, 147 /* Microcom DeskPorte FAST EP 28.8 Plug & Play */ 148 { "MNP0339", 0 }, 149 /* Microcom DeskPorte 28.8P Plug & Play */ 150 { "MNP0342", 0 }, 151 /* Microcom DeskPorte FAST ES 28.8 Plug & Play */ 152 { "MNP0500", 0 }, 153 /* Microcom DeskPorte FAST ES 28.8 Plug & Play */ 154 { "MNP0501", 0 }, 155 /* Microcom DeskPorte 28.8S Internal Plug & Play */ 156 { "MNP0502", 0 }, 157 /* Motorola */ 158 /* Motorola BitSURFR Plug & Play */ 159 { "MOT1105", 0 }, 160 /* Motorola TA210 Plug & Play */ 161 { "MOT1111", 0 }, 162 /* Motorola HMTA 200 (ISDN) Plug & Play */ 163 { "MOT1114", 0 }, 164 /* Motorola BitSURFR Plug & Play */ 165 { "MOT1115", 0 }, 166 /* Motorola Lifestyle 28.8 Internal */ 167 { "MOT1190", 0 }, 168 /* Motorola V.3400 Plug & Play */ 169 { "MOT1501", 0 }, 170 /* Motorola Lifestyle 28.8 V.34 Plug & Play */ 171 { "MOT1502", 0 }, 172 /* Motorola Power 28.8 V.34 Plug & Play */ 173 { "MOT1505", 0 }, 174 /* Motorola ModemSURFR External 28.8 Plug & Play */ 175 { "MOT1509", 0 }, 176 /* Motorola Premier 33.6 Desktop Plug & Play */ 177 { "MOT150A", 0 }, 178 /* Motorola VoiceSURFR 56K External PnP */ 179 { "MOT150F", 0 }, 180 /* Motorola ModemSURFR 56K External PnP */ 181 { "MOT1510", 0 }, 182 /* Motorola ModemSURFR 56K Internal PnP */ 183 { "MOT1550", 0 }, 184 /* Motorola ModemSURFR Internal 28.8 Plug & Play */ 185 { "MOT1560", 0 }, 186 /* Motorola Premier 33.6 Internal Plug & Play */ 187 { "MOT1580", 0 }, 188 /* Motorola OnlineSURFR 28.8 Internal Plug & Play */ 189 { "MOT15B0", 0 }, 190 /* Motorola VoiceSURFR 56K Internal PnP */ 191 { "MOT15F0", 0 }, 192 /* Com 1 */ 193 /* Deskline K56 Phone System PnP */ 194 { "MVX00A1", 0 }, 195 /* PC Rider K56 Phone System PnP */ 196 { "MVX00F2", 0 }, 197 /* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */ 198 { "nEC8241", 0 }, 199 /* Pace 56 Voice Internal Plug & Play Modem */ 200 { "PMC2430", 0 }, 201 /* Generic */ 202 /* Generic standard PC COM port */ 203 { "PNP0500", 0 }, 204 /* Generic 16550A-compatible COM port */ 205 { "PNP0501", 0 }, 206 /* Compaq 14400 Modem */ 207 { "PNPC000", 0 }, 208 /* Compaq 2400/9600 Modem */ 209 { "PNPC001", 0 }, 210 /* Dial-Up Networking Serial Cable between 2 PCs */ 211 { "PNPC031", 0 }, 212 /* Dial-Up Networking Parallel Cable between 2 PCs */ 213 { "PNPC032", 0 }, 214 /* Standard 9600 bps Modem */ 215 { "PNPC100", 0 }, 216 /* Standard 14400 bps Modem */ 217 { "PNPC101", 0 }, 218 /* Standard 28800 bps Modem*/ 219 { "PNPC102", 0 }, 220 /* Standard Modem*/ 221 { "PNPC103", 0 }, 222 /* Standard 9600 bps Modem*/ 223 { "PNPC104", 0 }, 224 /* Standard 14400 bps Modem*/ 225 { "PNPC105", 0 }, 226 /* Standard 28800 bps Modem*/ 227 { "PNPC106", 0 }, 228 /* Standard Modem */ 229 { "PNPC107", 0 }, 230 /* Standard 9600 bps Modem */ 231 { "PNPC108", 0 }, 232 /* Standard 14400 bps Modem */ 233 { "PNPC109", 0 }, 234 /* Standard 28800 bps Modem */ 235 { "PNPC10A", 0 }, 236 /* Standard Modem */ 237 { "PNPC10B", 0 }, 238 /* Standard 9600 bps Modem */ 239 { "PNPC10C", 0 }, 240 /* Standard 14400 bps Modem */ 241 { "PNPC10D", 0 }, 242 /* Standard 28800 bps Modem */ 243 { "PNPC10E", 0 }, 244 /* Standard Modem */ 245 { "PNPC10F", 0 }, 246 /* Standard PCMCIA Card Modem */ 247 { "PNP2000", 0 }, 248 /* Rockwell */ 249 /* Modular Technology */ 250 /* Rockwell 33.6 DPF Internal PnP */ 251 /* Modular Technology 33.6 Internal PnP */ 252 { "ROK0030", 0 }, 253 /* Kortex International */ 254 /* KORTEX 14400 Externe PnP */ 255 { "ROK0100", 0 }, 256 /* Rockwell 28.8 */ 257 { "ROK4120", 0 }, 258 /* Viking Components, Inc */ 259 /* Viking 28.8 INTERNAL Fax+Data+Voice PnP */ 260 { "ROK4920", 0 }, 261 /* Rockwell */ 262 /* British Telecom */ 263 /* Modular Technology */ 264 /* Rockwell 33.6 DPF External PnP */ 265 /* BT Prologue 33.6 External PnP */ 266 /* Modular Technology 33.6 External PnP */ 267 { "RSS00A0", 0 }, 268 /* Viking 56K FAX INT */ 269 { "RSS0262", 0 }, 270 /* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */ 271 { "RSS0250", 0 }, 272 /* SupraExpress 28.8 Data/Fax PnP modem */ 273 { "SUP1310", 0 }, 274 /* SupraExpress 336i PnP Voice Modem */ 275 { "SUP1381", 0 }, 276 /* SupraExpress 33.6 Data/Fax PnP modem */ 277 { "SUP1421", 0 }, 278 /* SupraExpress 33.6 Data/Fax PnP modem */ 279 { "SUP1590", 0 }, 280 /* SupraExpress 336i Sp ASVD */ 281 { "SUP1620", 0 }, 282 /* SupraExpress 33.6 Data/Fax PnP modem */ 283 { "SUP1760", 0 }, 284 /* SupraExpress 56i Sp Intl */ 285 { "SUP2171", 0 }, 286 /* Phoebe Micro */ 287 /* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */ 288 { "TEX0011", 0 }, 289 /* Archtek America Corp. */ 290 /* Archtek SmartLink Modem 3334BT Plug & Play */ 291 { "UAC000F", 0 }, 292 /* 3Com Corp. */ 293 /* Gateway Telepath IIvi 33.6 */ 294 { "USR0000", 0 }, 295 /* U.S. Robotics Sporster 33.6K Fax INT PnP */ 296 { "USR0002", 0 }, 297 /* Sportster Vi 14.4 PnP FAX Voicemail */ 298 { "USR0004", 0 }, 299 /* U.S. Robotics 33.6K Voice INT PnP */ 300 { "USR0006", 0 }, 301 /* U.S. Robotics 33.6K Voice EXT PnP */ 302 { "USR0007", 0 }, 303 /* U.S. Robotics Courier V.Everything INT PnP */ 304 { "USR0009", 0 }, 305 /* U.S. Robotics 33.6K Voice INT PnP */ 306 { "USR2002", 0 }, 307 /* U.S. Robotics 56K Voice INT PnP */ 308 { "USR2070", 0 }, 309 /* U.S. Robotics 56K Voice EXT PnP */ 310 { "USR2080", 0 }, 311 /* U.S. Robotics 56K FAX INT */ 312 { "USR3031", 0 }, 313 /* U.S. Robotics 56K FAX INT */ 314 { "USR3050", 0 }, 315 /* U.S. Robotics 56K Voice INT PnP */ 316 { "USR3070", 0 }, 317 /* U.S. Robotics 56K Voice EXT PnP */ 318 { "USR3080", 0 }, 319 /* U.S. Robotics 56K Voice INT PnP */ 320 { "USR3090", 0 }, 321 /* U.S. Robotics 56K Message */ 322 { "USR9100", 0 }, 323 /* U.S. Robotics 56K FAX EXT PnP*/ 324 { "USR9160", 0 }, 325 /* U.S. Robotics 56K FAX INT PnP*/ 326 { "USR9170", 0 }, 327 /* U.S. Robotics 56K Voice EXT PnP*/ 328 { "USR9180", 0 }, 329 /* U.S. Robotics 56K Voice INT PnP*/ 330 { "USR9190", 0 }, 331 /* Wacom tablets */ 332 { "WACFXXX", 0 }, 333 /* Compaq touchscreen */ 334 { "FPI2002", 0 }, 335 /* Fujitsu Stylistic touchscreens */ 336 { "FUJ02B2", 0 }, 337 { "FUJ02B3", 0 }, 338 /* Fujitsu Stylistic LT touchscreens */ 339 { "FUJ02B4", 0 }, 340 /* Passive Fujitsu Stylistic touchscreens */ 341 { "FUJ02B6", 0 }, 342 { "FUJ02B7", 0 }, 343 { "FUJ02B8", 0 }, 344 { "FUJ02B9", 0 }, 345 { "FUJ02BC", 0 }, 346 /* Fujitsu Wacom Tablet PC device */ 347 { "FUJ02E5", 0 }, 348 /* Fujitsu P-series tablet PC device */ 349 { "FUJ02E6", 0 }, 350 /* Fujitsu Wacom 2FGT Tablet PC device */ 351 { "FUJ02E7", 0 }, 352 /* Fujitsu Wacom 1FGT Tablet PC device */ 353 { "FUJ02E9", 0 }, 354 /* 355 * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 356 * in disguise). 357 */ 358 { "LTS0001", 0 }, 359 /* Rockwell's (PORALiNK) 33600 INT PNP */ 360 { "WCI0003", 0 }, 361 /* Unknown PnP modems */ 362 { "PNPCXXX", UNKNOWN_DEV }, 363 /* More unknown PnP modems */ 364 { "PNPDXXX", UNKNOWN_DEV }, 365 /* 366 * Winbond CIR port, should not be probed. We should keep track of 367 * it to prevent the legacy serial driver from probing it. 368 */ 369 { "WEC1022", CIR_PORT }, 370 /* 371 * SMSC IrCC SIR/FIR port, should not be probed by serial driver as 372 * well so its own driver can bind to it. 373 */ 374 { "SMCF010", CIR_PORT }, 375 { "", 0 } 376 }; 377 378 MODULE_DEVICE_TABLE(pnp, pnp_dev_table); 379 380 static const char *modem_names[] = { 381 "MODEM", "Modem", "modem", "FAX", "Fax", "fax", 382 "56K", "56k", "K56", "33.6", "28.8", "14.4", 383 "33,600", "28,800", "14,400", "33.600", "28.800", "14.400", 384 "33600", "28800", "14400", "V.90", "V.34", "V.32", NULL 385 }; 386 387 static bool check_name(const char *name) 388 { 389 const char **tmp; 390 391 for (tmp = modem_names; *tmp; tmp++) 392 if (strstr(name, *tmp)) 393 return true; 394 395 return false; 396 } 397 398 static bool check_resources(struct pnp_dev *dev) 399 { 400 static const resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8}; 401 unsigned int i; 402 403 for (i = 0; i < ARRAY_SIZE(base); i++) { 404 if (pnp_possible_config(dev, IORESOURCE_IO, base[i], 8)) 405 return true; 406 } 407 408 return false; 409 } 410 411 /* 412 * Given a complete unknown PnP device, try to use some heuristics to 413 * detect modems. Currently use such heuristic set: 414 * - dev->name or dev->bus->name must contain "modem" substring; 415 * - device must have only one IO region (8 byte long) with base address 416 * 0x2e8, 0x3e8, 0x2f8 or 0x3f8. 417 * 418 * Such detection looks very ugly, but can detect at least some of numerous 419 * PnP modems, alternatively we must hardcode all modems in pnp_devices[] 420 * table. 421 */ 422 static int serial_pnp_guess_board(struct pnp_dev *dev) 423 { 424 if (!(check_name(pnp_dev_name(dev)) || 425 (dev->card && check_name(dev->card->name)))) 426 return -ENODEV; 427 428 if (check_resources(dev)) 429 return 0; 430 431 return -ENODEV; 432 } 433 434 static int 435 serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) 436 { 437 struct uart_8250_port uart, *port; 438 int ret, flags = dev_id->driver_data; 439 unsigned char iotype; 440 long line; 441 442 if (flags & UNKNOWN_DEV) { 443 ret = serial_pnp_guess_board(dev); 444 if (ret < 0) 445 return ret; 446 } 447 448 memset(&uart, 0, sizeof(uart)); 449 if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) { 450 uart.port.iobase = pnp_port_start(dev, 2); 451 iotype = UPIO_PORT; 452 } else if (pnp_port_valid(dev, 0)) { 453 uart.port.iobase = pnp_port_start(dev, 0); 454 iotype = UPIO_PORT; 455 } else if (pnp_mem_valid(dev, 0)) { 456 uart.port.mapbase = pnp_mem_start(dev, 0); 457 uart.port.mapsize = pnp_mem_len(dev, 0); 458 iotype = UPIO_MEM; 459 uart.port.flags = UPF_IOREMAP; 460 } else 461 return -ENODEV; 462 463 uart.port.uartclk = 1843200; 464 uart.port.dev = &dev->dev; 465 uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF; 466 467 ret = uart_read_port_properties(&uart.port); 468 /* no interrupt -> fall back to polling */ 469 if (ret == -ENXIO) 470 ret = 0; 471 if (ret) 472 return ret; 473 474 /* 475 * The previous call may not set iotype correctly when reg-io-width 476 * property is absent and it doesn't support IO port resource. 477 */ 478 uart.port.iotype = iotype; 479 480 if (flags & CIR_PORT) { 481 uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE; 482 uart.port.type = PORT_8250_CIR; 483 } 484 485 dev_dbg(&dev->dev, 486 "Setup PNP port: port %#lx, mem %#llx, size %#llx, irq %u, type %u\n", 487 uart.port.iobase, (unsigned long long)uart.port.mapbase, 488 (unsigned long long)uart.port.mapsize, uart.port.irq, uart.port.iotype); 489 490 line = serial8250_register_8250_port(&uart); 491 if (line < 0 || (flags & CIR_PORT)) 492 return -ENODEV; 493 494 port = serial8250_get_port(line); 495 if (uart_console(&port->port)) 496 dev->capabilities |= PNP_CONSOLE; 497 498 pnp_set_drvdata(dev, (void *)line); 499 return 0; 500 } 501 502 static void serial_pnp_remove(struct pnp_dev *dev) 503 { 504 long line = (long)pnp_get_drvdata(dev); 505 506 dev->capabilities &= ~PNP_CONSOLE; 507 serial8250_unregister_port(line); 508 } 509 510 static int serial_pnp_suspend(struct device *dev) 511 { 512 long line = (long)dev_get_drvdata(dev); 513 514 serial8250_suspend_port(line); 515 return 0; 516 } 517 518 static int serial_pnp_resume(struct device *dev) 519 { 520 long line = (long)dev_get_drvdata(dev); 521 522 serial8250_resume_port(line); 523 return 0; 524 } 525 526 static DEFINE_SIMPLE_DEV_PM_OPS(serial_pnp_pm_ops, serial_pnp_suspend, serial_pnp_resume); 527 528 static struct pnp_driver serial_pnp_driver = { 529 .name = "serial", 530 .probe = serial_pnp_probe, 531 .remove = serial_pnp_remove, 532 .driver = { 533 .pm = pm_sleep_ptr(&serial_pnp_pm_ops), 534 }, 535 .id_table = pnp_dev_table, 536 }; 537 538 int serial8250_pnp_init(void) 539 { 540 return pnp_register_driver(&serial_pnp_driver); 541 } 542 543 void serial8250_pnp_exit(void) 544 { 545 pnp_unregister_driver(&serial_pnp_driver); 546 } 547 548