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