// SPDX-License-Identifier: GPL-2.0 /* * Probe 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. */ #include <linux/module.h> #include <linux/pci.h> #include <linux/pm.h> #include <linux/pnp.h> #include <linux/string.h> #include <linux/kernel.h> #include <linux/property.h> #include <linux/serial_core.h> #include <linux/bitops.h> #include <asm/byteorder.h> #include "8250.h" #define UNKNOWN_DEV 0x3000 #define CIR_PORT 0x0800 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*/ }, /* * ALi Fast Infrared Controller * Native driver (ali-ircc) is broken so at least * it can be used with irtty-sir. */ { "ALI5123", 0 }, /* 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 }, /* 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 }, /* Davicom ISA 33.6K Modem */ { "DAV0336", 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 }, /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */ { "GVC0303", 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 }, /* Intermec */ /* Intermec CV60 touchscreen port */ { "PNP4972", 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 336i PnP Voice Modem */ { "SUP1381", 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 }, /* Wacom tablets */ { "WACFXXX", 0 }, /* Compaq touchscreen */ { "FPI2002", 0 }, /* Fujitsu Stylistic touchscreens */ { "FUJ02B2", 0 }, { "FUJ02B3", 0 }, /* Fujitsu Stylistic LT touchscreens */ { "FUJ02B4", 0 }, /* Passive Fujitsu Stylistic touchscreens */ { "FUJ02B6", 0 }, { "FUJ02B7", 0 }, { "FUJ02B8", 0 }, { "FUJ02B9", 0 }, { "FUJ02BC", 0 }, /* Fujitsu Wacom Tablet PC device */ { "FUJ02E5", 0 }, /* Fujitsu P-series tablet PC device */ { "FUJ02E6", 0 }, /* Fujitsu Wacom 2FGT Tablet PC device */ { "FUJ02E7", 0 }, /* Fujitsu Wacom 1FGT Tablet PC device */ { "FUJ02E9", 0 }, /* * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 * in disguise). */ { "LTS0001", 0 }, /* Rockwell's (PORALiNK) 33600 INT PNP */ { "WCI0003", 0 }, /* Unknown PnP modems */ { "PNPCXXX", UNKNOWN_DEV }, /* More unknown PnP modems */ { "PNPDXXX", UNKNOWN_DEV }, /* * Winbond CIR port, should not be probed. We should keep track of * it to prevent the legacy serial driver from probing it. */ { "WEC1022", CIR_PORT }, /* * SMSC IrCC SIR/FIR port, should not be probed by serial driver as * well so its own driver can bind to it. */ { "SMCF010", CIR_PORT }, { "", 0 } }; MODULE_DEVICE_TABLE(pnp, pnp_dev_table); static const char *modem_names[] = { "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 bool check_name(const char *name) { const char **tmp; for (tmp = modem_names; *tmp; tmp++) if (strstr(name, *tmp)) return true; return false; } static bool check_resources(struct pnp_dev *dev) { static const resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8}; unsigned int i; for (i = 0; i < ARRAY_SIZE(base); i++) { if (pnp_possible_config(dev, IORESOURCE_IO, base[i], 8)) return true; } return false; } /* * 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 serial_pnp_guess_board(struct pnp_dev *dev) { if (!(check_name(pnp_dev_name(dev)) || (dev->card && check_name(dev->card->name)))) return -ENODEV; if (check_resources(dev)) return 0; return -ENODEV; } static int serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) { struct uart_8250_port uart, *port; int ret, flags = dev_id->driver_data; long line; if (flags & UNKNOWN_DEV) { ret = serial_pnp_guess_board(dev); if (ret < 0) return ret; } memset(&uart, 0, sizeof(uart)); if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) { uart.port.iobase = pnp_port_start(dev, 2); } else if (pnp_port_valid(dev, 0)) { uart.port.iobase = pnp_port_start(dev, 0); } else if (pnp_mem_valid(dev, 0)) { uart.port.mapbase = pnp_mem_start(dev, 0); uart.port.mapsize = pnp_mem_len(dev, 0); uart.port.flags = UPF_IOREMAP; } else return -ENODEV; uart.port.uartclk = 1843200; uart.port.dev = &dev->dev; uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF; ret = uart_read_port_properties(&uart.port); /* no interrupt -> fall back to polling */ if (ret == -ENXIO) ret = 0; if (ret) return ret; if (flags & CIR_PORT) { uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE; uart.port.type = PORT_8250_CIR; } dev_dbg(&dev->dev, "Setup PNP port: port %#lx, mem %#llx, size %#llx, irq %u, type %u\n", uart.port.iobase, (unsigned long long)uart.port.mapbase, (unsigned long long)uart.port.mapsize, uart.port.irq, uart.port.iotype); line = serial8250_register_8250_port(&uart); if (line < 0 || (flags & CIR_PORT)) return -ENODEV; port = serial8250_get_port(line); if (uart_console(&port->port)) dev->capabilities |= PNP_CONSOLE; pnp_set_drvdata(dev, (void *)line); return 0; } static void serial_pnp_remove(struct pnp_dev *dev) { long line = (long)pnp_get_drvdata(dev); dev->capabilities &= ~PNP_CONSOLE; serial8250_unregister_port(line); } static int serial_pnp_suspend(struct device *dev) { long line = (long)dev_get_drvdata(dev); serial8250_suspend_port(line); return 0; } static int serial_pnp_resume(struct device *dev) { long line = (long)dev_get_drvdata(dev); serial8250_resume_port(line); return 0; } static DEFINE_SIMPLE_DEV_PM_OPS(serial_pnp_pm_ops, serial_pnp_suspend, serial_pnp_resume); static struct pnp_driver serial_pnp_driver = { .name = "serial", .probe = serial_pnp_probe, .remove = serial_pnp_remove, .driver = { .pm = pm_sleep_ptr(&serial_pnp_pm_ops), }, .id_table = pnp_dev_table, }; int serial8250_pnp_init(void) { return pnp_register_driver(&serial_pnp_driver); } void serial8250_pnp_exit(void) { pnp_unregister_driver(&serial_pnp_driver); }
