text: /*
   *  linux/drivers/char/8250_pnp.c
   *
   *  Probe module for 8250/16550-type ISAPNP serial ports.
   *
   *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
   *
   *  Copyright (C) 2001 Russell King, All Rights Reserved.
   *
   *  Ported to the Linux PnP Layer - (C) Adam Belay.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License.
   *
   *  $Id: 8250_pnp.c,v 1.10 2002/07/21 21:32:30 rmk Exp $
   */
  #include <linux/module.h>
  #include <linux/init.h>
  #include <linux/pci.h>
  #include <linux/pnp.h>
  #include <linux/string.h>
  #include <linux/kernel.h>
  #include <linux/serial_core.h>
  #include <linux/bitops.h>
  
  #include <asm/byteorder.h>
  
  #include "8250.h"
  
  #define UNKNOWN_DEV 0x3000
  
  
  static const struct pnp_device_id pnp_dev_table[] = {
  	/* Archtek America Corp. */
  	/* Archtek SmartLink Modem 3334BT Plug & Play */
  	{	"AAC000F",		0	},
  	/* Anchor Datacomm BV */
  	/* SXPro 144 External Data Fax Modem Plug & Play */
  	{	"ADC0001",		0	},
  	/* SXPro 288 External Data Fax Modem Plug & Play */
  	{	"ADC0002",		0	},
  	/* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
  	{	"AEI0250",		0	},
  	/* Actiontec ISA PNP 56K X2 Fax Modem */
  	{	"AEI1240",		0	},
  	/* Rockwell 56K ACF II Fax+Data+Voice Modem */
  	{	"AKY1021",		0 /*SPCI_FL_NO_SHIRQ*/	},
  	/* AZT3005 PnP SOUND DEVICE */
  	{	"AZT4001",		0	},
  	/* Best Data Products Inc. Smart One 336F PnP Modem */
  	{	"BDP3336",		0	},
  	/*  Boca Research */
  	/* Boca Complete Ofc Communicator 14.4 Data-FAX */
  	{	"BRI0A49",		0	},
  	/* Boca Research 33,600 ACF Modem */
  	{	"BRI1400",		0	},
  	/* Boca 33.6 Kbps Internal FD34FSVD */
  	{	"BRI3400",		0	},
  	/* Boca 33.6 Kbps Internal FD34FSVD */
  	{	"BRI0A49",		0	},
  	/* Best Data Products Inc. Smart One 336F PnP Modem */
  	{	"BDP3336",		0	},
  	/* Computer Peripherals Inc */
  	/* EuroViVa CommCenter-33.6 SP PnP */
  	{	"CPI4050",		0	},
  	/* Creative Labs */
  	/* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
  	{	"CTL3001",		0	},
  	/* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
  	{	"CTL3011",		0	},
  	/* Creative */
  	/* Creative Modem Blaster Flash56 DI5601-1 */
  	{	"DMB1032",		0	},
  	/* Creative Modem Blaster V.90 DI5660 */
  	{	"DMB2001",		0	},
  	/* E-Tech */
  	/* E-Tech CyberBULLET PC56RVP */
  	{	"ETT0002",		0	},
  	/* FUJITSU */
  	/* Fujitsu 33600 PnP-I2 R Plug & Play */
  	{	"FUJ0202",		0	},
  	/* Fujitsu FMV-FX431 Plug & Play */
  	{	"FUJ0205",		0	},
  	/* Fujitsu 33600 PnP-I4 R Plug & Play */
  	{	"FUJ0206",		0	},
  	/* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
  	{	"FUJ0209",		0	},
  	/* Archtek America Corp. */
  	/* Archtek SmartLink Modem 3334BT Plug & Play */
  	{	"GVC000F",		0	},
  	/* Hayes */
  	/* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
  	{	"HAY0001",		0	},
  	/* Hayes Optima 336 V.34 + FAX + Voice PnP */
  	{	"HAY000C",		0	},
  	/* Hayes Optima 336B V.34 + FAX + Voice PnP */
  	{	"HAY000D",		0	},
  	/* Hayes Accura 56K Ext Fax Modem PnP */
  	{	"HAY5670",		0	},
  	/* Hayes Accura 56K Ext Fax Modem PnP */
  	{	"HAY5674",		0	},
  	/* Hayes Accura 56K Fax Modem PnP */
  	{	"HAY5675",		0	},
  	/* Hayes 288, V.34 + FAX */
  	{	"HAYF000",		0	},
  	/* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
  	{	"HAYF001",		0	},
  	/* IBM */
  	/* IBM Thinkpad 701 Internal Modem Voice */
  	{	"IBM0033",		0	},
  	/* Intertex */
  	/* Intertex 28k8 33k6 Voice EXT PnP */
  	{	"IXDC801",		0	},
  	/* Intertex 33k6 56k Voice EXT PnP */
  	{	"IXDC901",		0	},
  	/* Intertex 28k8 33k6 Voice SP EXT PnP */
  	{	"IXDD801",		0	},
  	/* Intertex 33k6 56k Voice SP EXT PnP */
  	{	"IXDD901",		0	},
  	/* Intertex 28k8 33k6 Voice SP INT PnP */
  	{	"IXDF401",		0	},
  	/* Intertex 28k8 33k6 Voice SP EXT PnP */
  	{	"IXDF801",		0	},
  	/* Intertex 33k6 56k Voice SP EXT PnP */
  	{	"IXDF901",		0	},
  	/* Kortex International */
  	/* KORTEX 28800 Externe PnP */
  	{	"KOR4522",		0	},
  	/* KXPro 33.6 Vocal ASVD PnP */
  	{	"KORF661",		0	},
  	/* Lasat */
  	/* LASAT Internet 33600 PnP */
  	{	"LAS4040",		0	},
  	/* Lasat Safire 560 PnP */
  	{	"LAS4540",		0	},
  	/* Lasat Safire 336  PnP */
  	{	"LAS5440",		0	},
  	/* Microcom, Inc. */
  	/* Microcom TravelPorte FAST V.34 Plug & Play */
  	{	"MNP0281",		0	},
  	/* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
  	{	"MNP0336",		0	},
  	/* Microcom DeskPorte FAST EP 28.8 Plug & Play */
  	{	"MNP0339",		0	},
  	/* Microcom DeskPorte 28.8P Plug & Play */
  	{	"MNP0342",		0	},
  	/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
  	{	"MNP0500",		0	},
  	/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
  	{	"MNP0501",		0	},
  	/* Microcom DeskPorte 28.8S Internal Plug & Play */
  	{	"MNP0502",		0	},
  	/* Motorola */
  	/* Motorola BitSURFR Plug & Play */
  	{	"MOT1105",		0	},
  	/* Motorola TA210 Plug & Play */
  	{	"MOT1111",		0	},
  	/* Motorola HMTA 200 (ISDN) Plug & Play */
  	{	"MOT1114",		0	},
  	/* Motorola BitSURFR Plug & Play */
  	{	"MOT1115",		0	},
  	/* Motorola Lifestyle 28.8 Internal */
  	{	"MOT1190",		0	},
  	/* Motorola V.3400 Plug & Play */
  	{	"MOT1501",		0	},
  	/* Motorola Lifestyle 28.8 V.34 Plug & Play */
  	{	"MOT1502",		0	},
  	/* Motorola Power 28.8 V.34 Plug & Play */
  	{	"MOT1505",		0	},
  	/* Motorola ModemSURFR External 28.8 Plug & Play */
  	{	"MOT1509",		0	},
  	/* Motorola Premier 33.6 Desktop Plug & Play */
  	{	"MOT150A",		0	},
  	/* Motorola VoiceSURFR 56K External PnP */
  	{	"MOT150F",		0	},
  	/* Motorola ModemSURFR 56K External PnP */
  	{	"MOT1510",		0	},
  	/* Motorola ModemSURFR 56K Internal PnP */
  	{	"MOT1550",		0	},
  	/* Motorola ModemSURFR Internal 28.8 Plug & Play */
  	{	"MOT1560",		0	},
  	/* Motorola Premier 33.6 Internal Plug & Play */
  	{	"MOT1580",		0	},
  	/* Motorola OnlineSURFR 28.8 Internal Plug & Play */
  	{	"MOT15B0",		0	},
  	/* Motorola VoiceSURFR 56K Internal PnP */
  	{	"MOT15F0",		0	},
  	/* Com 1 */
  	/*  Deskline K56 Phone System PnP */
  	{	"MVX00A1",		0	},
  	/* PC Rider K56 Phone System PnP */
  	{	"MVX00F2",		0	},
  	/* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
  	{	"nEC8241",		0	},
  	/* Pace 56 Voice Internal Plug & Play Modem */
  	{	"PMC2430",		0	},
  	/* Generic */
  	/* Generic standard PC COM port	 */
  	{	"PNP0500",		0	},
  	/* Generic 16550A-compatible COM port */
  	{	"PNP0501",		0	},
  	/* Compaq 14400 Modem */
  	{	"PNPC000",		0	},
  	/* Compaq 2400/9600 Modem */
  	{	"PNPC001",		0	},
  	/* Dial-Up Networking Serial Cable between 2 PCs */
  	{	"PNPC031",		0	},
  	/* Dial-Up Networking Parallel Cable between 2 PCs */
  	{	"PNPC032",		0	},
  	/* Standard 9600 bps Modem */
  	{	"PNPC100",		0	},
  	/* Standard 14400 bps Modem */
  	{	"PNPC101",		0	},
  	/*  Standard 28800 bps Modem*/
  	{	"PNPC102",		0	},
  	/*  Standard Modem*/
  	{	"PNPC103",		0	},
  	/*  Standard 9600 bps Modem*/
  	{	"PNPC104",		0	},
  	/*  Standard 14400 bps Modem*/
  	{	"PNPC105",		0	},
  	/*  Standard 28800 bps Modem*/
  	{	"PNPC106",		0	},
  	/*  Standard Modem */
  	{	"PNPC107",		0	},
  	/* Standard 9600 bps Modem */
  	{	"PNPC108",		0	},
  	/* Standard 14400 bps Modem */
  	{	"PNPC109",		0	},
  	/* Standard 28800 bps Modem */
  	{	"PNPC10A",		0	},
  	/* Standard Modem */
  	{	"PNPC10B",		0	},
  	/* Standard 9600 bps Modem */
  	{	"PNPC10C",		0	},
  	/* Standard 14400 bps Modem */
  	{	"PNPC10D",		0	},
  	/* Standard 28800 bps Modem */
  	{	"PNPC10E",		0	},
  	/* Standard Modem */
  	{	"PNPC10F",		0	},
  	/* Standard PCMCIA Card Modem */
  	{	"PNP2000",		0	},
  	/* Rockwell */
  	/* Modular Technology */
  	/* Rockwell 33.6 DPF Internal PnP */
  	/* Modular Technology 33.6 Internal PnP */
  	{	"ROK0030",		0	},
  	/* Kortex International */
  	/* KORTEX 14400 Externe PnP */
  	{	"ROK0100",		0	},
  	/* Rockwell 28.8 */
  	{	"ROK4120",		0	},
  	/* Viking Components, Inc */
  	/* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
  	{	"ROK4920",		0	},
  	/* Rockwell */
  	/* British Telecom */
  	/* Modular Technology */
  	/* Rockwell 33.6 DPF External PnP */
  	/* BT Prologue 33.6 External PnP */
  	/* Modular Technology 33.6 External PnP */
  	{	"RSS00A0",		0	},
  	/* Viking 56K FAX INT */
  	{	"RSS0262",		0	},
  	/* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
  	{       "RSS0250",              0       },
  	/* SupraExpress 28.8 Data/Fax PnP modem */
  	{	"SUP1310",		0	},
  	/* SupraExpress 33.6 Data/Fax PnP modem */
  	{	"SUP1421",		0	},
  	/* SupraExpress 33.6 Data/Fax PnP modem */
  	{	"SUP1590",		0	},
  	/* SupraExpress 336i Sp ASVD */
  	{	"SUP1620",		0	},
  	/* SupraExpress 33.6 Data/Fax PnP modem */
  	{	"SUP1760",		0	},
  	/* SupraExpress 56i Sp Intl */
  	{	"SUP2171",		0	},
  	/* Phoebe Micro */
  	/* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
  	{	"TEX0011",		0	},
  	/* Archtek America Corp. */
  	/* Archtek SmartLink Modem 3334BT Plug & Play */
  	{	"UAC000F",		0	},
  	/* 3Com Corp. */
  	/* Gateway Telepath IIvi 33.6 */
  	{	"USR0000",		0	},
  	/* U.S. Robotics Sporster 33.6K Fax INT PnP */
  	{	"USR0002",		0	},
  	/*  Sportster Vi 14.4 PnP FAX Voicemail */
  	{	"USR0004",		0	},
  	/* U.S. Robotics 33.6K Voice INT PnP */
  	{	"USR0006",		0	},
  	/* U.S. Robotics 33.6K Voice EXT PnP */
  	{	"USR0007",		0	},
  	/* U.S. Robotics Courier V.Everything INT PnP */
  	{	"USR0009",		0	},
  	/* U.S. Robotics 33.6K Voice INT PnP */
  	{	"USR2002",		0	},
  	/* U.S. Robotics 56K Voice INT PnP */
  	{	"USR2070",		0	},
  	/* U.S. Robotics 56K Voice EXT PnP */
  	{	"USR2080",		0	},
  	/* U.S. Robotics 56K FAX INT */
  	{	"USR3031",		0	},
  	/* U.S. Robotics 56K FAX INT */
  	{	"USR3050",		0	},
  	/* U.S. Robotics 56K Voice INT PnP */
  	{	"USR3070",		0	},
  	/* U.S. Robotics 56K Voice EXT PnP */
  	{	"USR3080",		0	},
  	/* U.S. Robotics 56K Voice INT PnP */
  	{	"USR3090",		0	},
  	/* U.S. Robotics 56K Message  */
  	{	"USR9100",		0	},
  	/* U.S. Robotics 56K FAX EXT PnP*/
  	{	"USR9160",		0	},
  	/* U.S. Robotics 56K FAX INT PnP*/
  	{	"USR9170",		0	},
  	/* U.S. Robotics 56K Voice EXT PnP*/
  	{	"USR9180",		0	},
  	/* U.S. Robotics 56K Voice INT PnP*/
  	{	"USR9190",		0	},
  	/* HP Compaq Tablet PC tc1100 Wacom tablet */
  	{	"WACF005",		0	},
  	/* Rockwell's (PORALiNK) 33600 INT PNP */
  	{	"WCI0003",		0	},
  	/* Unkown PnP modems */
  	{	"PNPCXXX",		UNKNOWN_DEV	},
  	/* More unkown PnP modems */
  	{	"PNPDXXX",		UNKNOWN_DEV	},
  	{	"",			0	}
  };
  
  MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
  
  static char *modem_names[] __devinitdata = {
  	"MODEM", "Modem", "modem", "FAX", "Fax", "fax",
  	"56K", "56k", "K56", "33.6", "28.8", "14.4",
  	"33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
  	"33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
  };
  
  static int __devinit check_name(char *name)
  {
  	char **tmp;
  
  	for (tmp = modem_names; *tmp; tmp++)
  		if (strstr(name, *tmp))
  			return 1;
  
  	return 0;
  }
  
  static int __devinit check_resources(struct pnp_option *option)
  {
  	struct pnp_option *tmp;
  	if (!option)
  		return 0;
  
  	for (tmp = option; tmp; tmp = tmp->next) {
  		struct pnp_port *port;
  		for (port = tmp->port; port; port = port->next)
  			if ((port->size == 8) &&
  			    ((port->min == 0x2f8) ||
  			     (port->min == 0x3f8) ||
  			     (port->min == 0x2e8) ||
  			     (port->min == 0x3e8)))
  				return 1;
  	}
  
  	return 0;
  }
  
  /*
   * Given a complete unknown PnP device, try to use some heuristics to
   * detect modems. Currently use such heuristic set:
   *     - dev->name or dev->bus->name must contain "modem" substring;
   *     - device must have only one IO region (8 byte long) with base address
   *       0x2e8, 0x3e8, 0x2f8 or 0x3f8.
   *
   * Such detection looks very ugly, but can detect at least some of numerous
   * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
   * table.
   */
  static int __devinit serial_pnp_guess_board(struct pnp_dev *dev, int *flags)
  {
  	if (!(check_name(pnp_dev_name(dev)) || (dev->card && check_name(dev->card->name))))
  		return -ENODEV;
  
  	if (check_resources(dev->independent))
  		return 0;
  
  	if (check_resources(dev->dependent))
  		return 0;
  
  	return -ENODEV;
  }
  
  static int __devinit
  serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
  {
  	struct uart_port port;
  	int ret, line, flags = dev_id->driver_data;
  
  	if (flags & UNKNOWN_DEV) {
  		ret = serial_pnp_guess_board(dev, &flags);
  		if (ret < 0)
  			return ret;
  	}
  
  	memset(&port, 0, sizeof(struct uart_port));
  	port.irq = pnp_irq(dev, 0);
  	if (pnp_port_valid(dev, 0)) {
  		port.iobase = pnp_port_start(dev, 0);
  		port.iotype = UPIO_PORT;
  	} else if (pnp_mem_valid(dev, 0)) {
  		port.mapbase = pnp_mem_start(dev, 0);
  		port.iotype = UPIO_MEM;
  		port.flags = UPF_IOREMAP;
  	} else
  		return -ENODEV;
  
  #ifdef SERIAL_DEBUG_PNP
  	printk("Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
  	       port.iobase, port.mapbase, port.irq, port.iotype);
  #endif
  
  	port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
  	port.uartclk = 1843200;
  	port.dev = &dev->dev;
  
  	line = serial8250_register_port(&port);
  
  	if (line >= 0)
  		pnp_set_drvdata(dev, (void *)((long)line + 1));
  	return line >= 0 ? 0 : -ENODEV;
  
  }
  
  static void __devexit serial_pnp_remove(struct pnp_dev *dev)
  {
  	long line = (long)pnp_get_drvdata(dev);
  	if (line)
  		serial8250_unregister_port(line - 1);
  }
  
  static struct pnp_driver serial_pnp_driver = {
  	.name		= "serial",
  	.id_table	= pnp_dev_table,
  	.probe		= serial_pnp_probe,
  	.remove		= __devexit_p(serial_pnp_remove),
  };
  
  static int __init serial8250_pnp_init(void)
  {
  	return pnp_register_driver(&serial_pnp_driver);
  }
  
  static void __exit serial8250_pnp_exit(void)
  {
  	pnp_unregister_driver(&serial_pnp_driver);
  }
  
  module_init(serial8250_pnp_init);
  module_exit(serial8250_pnp_exit);
  
  MODULE_LICENSE("GPL");
  MODULE_DESCRIPTION("Generic 8250/16x50 PnP serial driver");
  