drivers/serial/8250_pnp.c

   1 /*
   2  *  linux/drivers/char/8250_pnp.c
   3  *
   4  *  Probe module for 8250/16550-type ISAPNP serial ports.
   5  *
   6  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
   7  *
   8  *  Copyright (C) 2001 Russell King, All Rights Reserved.
   9  *
  10  *  Ported to the Linux PnP Layer - (C) Adam Belay.
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License.
  15  *
  16  *  $Id: 8250_pnp.c,v 1.10 2002/07/21 21:32:30 rmk Exp $
  17  */
  18 #include <linux/module.h>
  19 #include <linux/init.h>
  20 #include <linux/pci.h>
  21 #include <linux/pnp.h>
  22 #include <linux/string.h>
  23 #include <linux/kernel.h>
  24 #include <linux/serial_core.h>
  25 #include <linux/bitops.h>
  26
  27 #include <asm/byteorder.h>
  28
  29 #include "8250.h"
  30
  31 #define UNKNOWN_DEV 0x3000
  32
  33
  34 static const struct pnp_device_id pnp_dev_table[] = {
  35         /* Archtek America Corp. */
  36         /* Archtek SmartLink Modem 3334BT Plug & Play */
  37         {       "AAC000F",              0       },
  38         /* Anchor Datacomm BV */
  39         /* SXPro 144 External Data Fax Modem Plug & Play */
  40         {       "ADC0001",              0       },
  41         /* SXPro 288 External Data Fax Modem Plug & Play */
  42         {       "ADC0002",              0       },
  43         /* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
  44         {       "AEI0250",              0       },
  45         /* Actiontec ISA PNP 56K X2 Fax Modem */
  46         {       "AEI1240",              0       },
  47         /* Rockwell 56K ACF II Fax+Data+Voice Modem */
  48         {       "AKY1021",              0 /*SPCI_FL_NO_SHIRQ*/  },
  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         /* Boca 33.6 Kbps Internal FD34FSVD */
  61         {       "BRI0A49",              0       },
  62         /* Best Data Products Inc. Smart One 336F PnP Modem */
  63         {       "BDP3336",              0       },
  64         /* Computer Peripherals Inc */
  65         /* EuroViVa CommCenter-33.6 SP PnP */
  66         {       "CPI4050",              0       },
  67         /* Creative Labs */
  68         /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
  69         {       "CTL3001",              0       },
  70         /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
  71         {       "CTL3011",              0       },
  72         /* Creative */
  73         /* Creative Modem Blaster Flash56 DI5601-1 */
  74         {       "DMB1032",              0       },
  75         /* Creative Modem Blaster V.90 DI5660 */
  76         {       "DMB2001",              0       },
  77         /* E-Tech */
  78         /* E-Tech CyberBULLET PC56RVP */
  79         {       "ETT0002",              0       },
  80         /* FUJITSU */
  81         /* Fujitsu 33600 PnP-I2 R Plug & Play */
  82         {       "FUJ0202",              0       },
  83         /* Fujitsu FMV-FX431 Plug & Play */
  84         {       "FUJ0205",              0       },
  85         /* Fujitsu 33600 PnP-I4 R Plug & Play */
  86         {       "FUJ0206",              0       },
  87         /* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
  88         {       "FUJ0209",              0       },
  89         /* Archtek America Corp. */
  90         /* Archtek SmartLink Modem 3334BT Plug & Play */
  91         {       "GVC000F",              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         /* Intertex */
 113         /* Intertex 28k8 33k6 Voice EXT PnP */
 114         {       "IXDC801",              0       },
 115         /* Intertex 33k6 56k Voice EXT PnP */
 116         {       "IXDC901",              0       },
 117         /* Intertex 28k8 33k6 Voice SP EXT PnP */
 118         {       "IXDD801",              0       },
 119         /* Intertex 33k6 56k Voice SP EXT PnP */
 120         {       "IXDD901",              0       },
 121         /* Intertex 28k8 33k6 Voice SP INT PnP */
 122         {       "IXDF401",              0       },
 123         /* Intertex 28k8 33k6 Voice SP EXT PnP */
 124         {       "IXDF801",              0       },
 125         /* Intertex 33k6 56k Voice SP EXT PnP */
 126         {       "IXDF901",              0       },
 127         /* Kortex International */
 128         /* KORTEX 28800 Externe PnP */
 129         {       "KOR4522",              0       },
 130         /* KXPro 33.6 Vocal ASVD PnP */
 131         {       "KORF661",              0       },
 132         /* Lasat */
 133         /* LASAT Internet 33600 PnP */
 134         {       "LAS4040",              0       },
 135         /* Lasat Safire 560 PnP */
 136         {       "LAS4540",              0       },
 137         /* Lasat Safire 336  PnP */
 138         {       "LAS5440",              0       },
 139         /* Microcom, Inc. */
 140         /* Microcom TravelPorte FAST V.34 Plug & Play */
 141         {       "MNP0281",              0       },
 142         /* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
 143         {       "MNP0336",              0       },
 144         /* Microcom DeskPorte FAST EP 28.8 Plug & Play */
 145         {       "MNP0339",              0       },
 146         /* Microcom DeskPorte 28.8P Plug & Play */
 147         {       "MNP0342",              0       },
 148         /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
 149         {       "MNP0500",              0       },
 150         /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
 151         {       "MNP0501",              0       },
 152         /* Microcom DeskPorte 28.8S Internal Plug & Play */
 153         {       "MNP0502",              0       },
 154         /* Motorola */
 155         /* Motorola BitSURFR Plug & Play */
 156         {       "MOT1105",              0       },
 157         /* Motorola TA210 Plug & Play */
 158         {       "MOT1111",              0       },
 159         /* Motorola HMTA 200 (ISDN) Plug & Play */
 160         {       "MOT1114",              0       },
 161         /* Motorola BitSURFR Plug & Play */
 162         {       "MOT1115",              0       },
 163         /* Motorola Lifestyle 28.8 Internal */
 164         {       "MOT1190",              0       },
 165         /* Motorola V.3400 Plug & Play */
 166         {       "MOT1501",              0       },
 167         /* Motorola Lifestyle 28.8 V.34 Plug & Play */
 168         {       "MOT1502",              0       },
 169         /* Motorola Power 28.8 V.34 Plug & Play */
 170         {       "MOT1505",              0       },
 171         /* Motorola ModemSURFR External 28.8 Plug & Play */
 172         {       "MOT1509",              0       },
 173         /* Motorola Premier 33.6 Desktop Plug & Play */
 174         {       "MOT150A",              0       },
 175         /* Motorola VoiceSURFR 56K External PnP */
 176         {       "MOT150F",              0       },
 177         /* Motorola ModemSURFR 56K External PnP */
 178         {       "MOT1510",              0       },
 179         /* Motorola ModemSURFR 56K Internal PnP */
 180         {       "MOT1550",              0       },
 181         /* Motorola ModemSURFR Internal 28.8 Plug & Play */
 182         {       "MOT1560",              0       },
 183         /* Motorola Premier 33.6 Internal Plug & Play */
 184         {       "MOT1580",              0       },
 185         /* Motorola OnlineSURFR 28.8 Internal Plug & Play */
 186         {       "MOT15B0",              0       },
 187         /* Motorola VoiceSURFR 56K Internal PnP */
 188         {       "MOT15F0",              0       },
 189         /* Com 1 */
 190         /*  Deskline K56 Phone System PnP */
 191         {       "MVX00A1",              0       },
 192         /* PC Rider K56 Phone System PnP */
 193         {       "MVX00F2",              0       },
 194         /* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
 195         {       "nEC8241",              0       },
 196         /* Pace 56 Voice Internal Plug & Play Modem */
 197         {       "PMC2430",              0       },
 198         /* Generic */
 199         /* Generic standard PC COM port  */
 200         {       "PNP0500",              0       },
 201         /* Generic 16550A-compatible COM port */
 202         {       "PNP0501",              0       },
 203         /* Compaq 14400 Modem */
 204         {       "PNPC000",              0       },
 205         /* Compaq 2400/9600 Modem */
 206         {       "PNPC001",              0       },
 207         /* Dial-Up Networking Serial Cable between 2 PCs */
 208         {       "PNPC031",              0       },
 209         /* Dial-Up Networking Parallel Cable between 2 PCs */
 210         {       "PNPC032",              0       },
 211         /* Standard 9600 bps Modem */
 212         {       "PNPC100",              0       },
 213         /* Standard 14400 bps Modem */
 214         {       "PNPC101",              0       },
 215         /*  Standard 28800 bps Modem*/
 216         {       "PNPC102",              0       },
 217         /*  Standard Modem*/
 218         {       "PNPC103",              0       },
 219         /*  Standard 9600 bps Modem*/
 220         {       "PNPC104",              0       },
 221         /*  Standard 14400 bps Modem*/
 222         {       "PNPC105",              0       },
 223         /*  Standard 28800 bps Modem*/
 224         {       "PNPC106",              0       },
 225         /*  Standard Modem */
 226         {       "PNPC107",              0       },
 227         /* Standard 9600 bps Modem */
 228         {       "PNPC108",              0       },
 229         /* Standard 14400 bps Modem */
 230         {       "PNPC109",              0       },
 231         /* Standard 28800 bps Modem */
 232         {       "PNPC10A",              0       },
 233         /* Standard Modem */
 234         {       "PNPC10B",              0       },
 235         /* Standard 9600 bps Modem */
 236         {       "PNPC10C",              0       },
 237         /* Standard 14400 bps Modem */
 238         {       "PNPC10D",              0       },
 239         /* Standard 28800 bps Modem */
 240         {       "PNPC10E",              0       },
 241         /* Standard Modem */
 242         {       "PNPC10F",              0       },
 243         /* Standard PCMCIA Card Modem */
 244         {       "PNP2000",              0       },
 245         /* Rockwell */
 246         /* Modular Technology */
 247         /* Rockwell 33.6 DPF Internal PnP */
 248         /* Modular Technology 33.6 Internal PnP */
 249         {       "ROK0030",              0       },
 250         /* Kortex International */
 251         /* KORTEX 14400 Externe PnP */
 252         {       "ROK0100",              0       },
 253         /* Rockwell 28.8 */
 254         {       "ROK4120",              0       },
 255         /* Viking Components, Inc */
 256         /* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
 257         {       "ROK4920",              0       },
 258         /* Rockwell */
 259         /* British Telecom */
 260         /* Modular Technology */
 261         /* Rockwell 33.6 DPF External PnP */
 262         /* BT Prologue 33.6 External PnP */
 263         /* Modular Technology 33.6 External PnP */
 264         {       "RSS00A0",              0       },
 265         /* Viking 56K FAX INT */
 266         {       "RSS0262",              0       },
 267         /* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
 268         {       "RSS0250",              0       },
 269         /* SupraExpress 28.8 Data/Fax PnP modem */
 270         {       "SUP1310",              0       },
 271         /* SupraExpress 33.6 Data/Fax PnP modem */
 272         {       "SUP1421",              0       },
 273         /* SupraExpress 33.6 Data/Fax PnP modem */
 274         {       "SUP1590",              0       },
 275         /* SupraExpress 336i Sp ASVD */
 276         {       "SUP1620",              0       },
 277         /* SupraExpress 33.6 Data/Fax PnP modem */
 278         {       "SUP1760",              0       },
 279         /* SupraExpress 56i Sp Intl */
 280         {       "SUP2171",              0       },
 281         /* Phoebe Micro */
 282         /* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
 283         {       "TEX0011",              0       },
 284         /* Archtek America Corp. */
 285         /* Archtek SmartLink Modem 3334BT Plug & Play */
 286         {       "UAC000F",              0       },
 287         /* 3Com Corp. */
 288         /* Gateway Telepath IIvi 33.6 */
 289         {       "USR0000",              0       },
 290         /* U.S. Robotics Sporster 33.6K Fax INT PnP */
 291         {       "USR0002",              0       },
 292         /*  Sportster Vi 14.4 PnP FAX Voicemail */
 293         {       "USR0004",              0       },
 294         /* U.S. Robotics 33.6K Voice INT PnP */
 295         {       "USR0006",              0       },
 296         /* U.S. Robotics 33.6K Voice EXT PnP */
 297         {       "USR0007",              0       },
 298         /* U.S. Robotics Courier V.Everything INT PnP */
 299         {       "USR0009",              0       },
 300         /* U.S. Robotics 33.6K Voice INT PnP */
 301         {       "USR2002",              0       },
 302         /* U.S. Robotics 56K Voice INT PnP */
 303         {       "USR2070",              0       },
 304         /* U.S. Robotics 56K Voice EXT PnP */
 305         {       "USR2080",              0       },
 306         /* U.S. Robotics 56K FAX INT */
 307         {       "USR3031",              0       },
 308         /* U.S. Robotics 56K FAX INT */
 309         {       "USR3050",              0       },
 310         /* U.S. Robotics 56K Voice INT PnP */
 311         {       "USR3070",              0       },
 312         /* U.S. Robotics 56K Voice EXT PnP */
 313         {       "USR3080",              0       },
 314         /* U.S. Robotics 56K Voice INT PnP */
 315         {       "USR3090",              0       },
 316         /* U.S. Robotics 56K Message  */
 317         {       "USR9100",              0       },
 318         /* U.S. Robotics 56K FAX EXT PnP*/
 319         {       "USR9160",              0       },
 320         /* U.S. Robotics 56K FAX INT PnP*/
 321         {       "USR9170",              0       },
 322         /* U.S. Robotics 56K Voice EXT PnP*/
 323         {       "USR9180",              0       },
 324         /* U.S. Robotics 56K Voice INT PnP*/
 325         {       "USR9190",              0       },
 326         /* Wacom tablets */
 327         {       "WACF004",              0       },
 328         {       "WACF005",              0       },
 329         {       "WACF006",              0       },
 330         /* Compaq touchscreen */
 331         {       "FPI2002",              0 },
 332         /* Fujitsu Stylistic touchscreens */
 333         {       "FUJ02B2",              0 },
 334         {       "FUJ02B3",              0 },
 335         /* Fujitsu Stylistic LT touchscreens */
 336         {       "FUJ02B4",              0 },
 337         /* Passive Fujitsu Stylistic touchscreens */
 338         {       "FUJ02B6",              0 },
 339         {       "FUJ02B7",              0 },
 340         {       "FUJ02B8",              0 },
 341         {       "FUJ02B9",              0 },
 342         {       "FUJ02BC",              0 },
 343         /* Rockwell's (PORALiNK) 33600 INT PNP */
 344         {       "WCI0003",              0       },
 345         /* Unkown PnP modems */
 346         {       "PNPCXXX",              UNKNOWN_DEV     },
 347         /* More unkown PnP modems */
 348         {       "PNPDXXX",              UNKNOWN_DEV     },
 349         {       "",                     0       }
 350 };
 351
 352 MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
 353
 354 static char *modem_names[] __devinitdata = {
 355         "MODEM", "Modem", "modem", "FAX", "Fax", "fax",
 356         "56K", "56k", "K56", "33.6", "28.8", "14.4",
 357         "33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
 358         "33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
 359 };
 360
 361 static int __devinit check_name(char *name)
 362 {
 363         char **tmp;
 364
 365         for (tmp = modem_names; *tmp; tmp++)
 366                 if (strstr(name, *tmp))
 367                         return 1;
 368
 369         return 0;
 370 }
 371
 372 static int __devinit check_resources(struct pnp_option *option)
 373 {
 374         struct pnp_option *tmp;
 375         if (!option)
 376                 return 0;
 377
 378         for (tmp = option; tmp; tmp = tmp->next) {
 379                 struct pnp_port *port;
 380                 for (port = tmp->port; port; port = port->next)
 381                         if ((port->size == 8) &&
 382                             ((port->min == 0x2f8) ||
 383                              (port->min == 0x3f8) ||
 384                              (port->min == 0x2e8) ||
 385                              (port->min == 0x3e8)))
 386                                 return 1;
 387         }
 388
 389         return 0;
 390 }
 391
 392 /*
 393  * Given a complete unknown PnP device, try to use some heuristics to
 394  * detect modems. Currently use such heuristic set:
 395  *     - dev->name or dev->bus->name must contain "modem" substring;
 396  *     - device must have only one IO region (8 byte long) with base address
 397  *       0x2e8, 0x3e8, 0x2f8 or 0x3f8.
 398  *
 399  * Such detection looks very ugly, but can detect at least some of numerous
 400  * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
 401  * table.
 402  */
 403 static int __devinit serial_pnp_guess_board(struct pnp_dev *dev, int *flags)
 404 {
 405         if (!(check_name(pnp_dev_name(dev)) || (dev->card && check_name(dev->card->name))))
 406                 return -ENODEV;
 407
 408         if (check_resources(dev->independent))
 409                 return 0;
 410
 411         if (check_resources(dev->dependent))
 412                 return 0;
 413
 414         return -ENODEV;
 415 }
 416
 417 static int __devinit
 418 serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 419 {
 420         struct uart_port port;
 421         int ret, line, flags = dev_id->driver_data;
 422
 423         if (flags & UNKNOWN_DEV) {
 424                 ret = serial_pnp_guess_board(dev, &flags);
 425                 if (ret < 0)
 426                         return ret;
 427         }
 428
 429         memset(&port, 0, sizeof(struct uart_port));
 430         port.irq = pnp_irq(dev, 0);
 431         if (pnp_port_valid(dev, 0)) {
 432                 port.iobase = pnp_port_start(dev, 0);
 433                 port.iotype = UPIO_PORT;
 434         } else if (pnp_mem_valid(dev, 0)) {
 435                 port.mapbase = pnp_mem_start(dev, 0);
 436                 port.iotype = UPIO_MEM;
 437                 port.flags = UPF_IOREMAP;
 438         } else
 439                 return -ENODEV;
 440
 441 #ifdef SERIAL_DEBUG_PNP
 442         printk("Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
 443                port.iobase, port.mapbase, port.irq, port.iotype);
 444 #endif
 445
 446         port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
 447         if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
 448                 port.flags |= UPF_SHARE_IRQ;
 449         port.uartclk = 1843200;
 450         port.dev = &dev->dev;
 451
 452         line = serial8250_register_port(&port);
 453         if (line < 0)
 454                 return -ENODEV;
 455
 456         pnp_set_drvdata(dev, (void *)((long)line + 1));
 457         return 0;
 458 }
 459
 460 static void __devexit serial_pnp_remove(struct pnp_dev *dev)
 461 {
 462         long line = (long)pnp_get_drvdata(dev);
 463         if (line)
 464                 serial8250_unregister_port(line - 1);
 465 }
 466
 467 #ifdef CONFIG_PM
 468 static int serial_pnp_suspend(struct pnp_dev *dev, pm_message_t state)
 469 {
 470         long line = (long)pnp_get_drvdata(dev);
 471
 472         if (!line)
 473                 return -ENODEV;
 474         serial8250_suspend_port(line - 1);
 475         return 0;
 476 }
 477
 478 static int serial_pnp_resume(struct pnp_dev *dev)
 479 {
 480         long line = (long)pnp_get_drvdata(dev);
 481
 482         if (!line)
 483                 return -ENODEV;
 484         serial8250_resume_port(line - 1);
 485         return 0;
 486 }
 487 #else
 488 #define serial_pnp_suspend NULL
 489 #define serial_pnp_resume NULL
 490 #endif /* CONFIG_PM */
 491
 492 static struct pnp_driver serial_pnp_driver = {
 493         .name           = "serial",
 494         .probe          = serial_pnp_probe,
 495         .remove         = __devexit_p(serial_pnp_remove),
 496         .suspend        = serial_pnp_suspend,
 497         .resume         = serial_pnp_resume,
 498         .id_table       = pnp_dev_table,
 499 };
 500
 501 static int __init serial8250_pnp_init(void)
 502 {
 503         return pnp_register_driver(&serial_pnp_driver);
 504 }
 505
 506 static void __exit serial8250_pnp_exit(void)
 507 {
 508         pnp_unregister_driver(&serial_pnp_driver);
 509 }
 510
 511 module_init(serial8250_pnp_init);
 512 module_exit(serial8250_pnp_exit);
 513
 514 MODULE_LICENSE("GPL");
 515 MODULE_DESCRIPTION("Generic 8250/16x50 PnP serial driver");