9b22271d4b
Return failure immediately, so we don't have to test it twice. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
516 lines
14 KiB
C
516 lines
14 KiB
C
/*
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* linux/drivers/char/8250_pnp.c
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*
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* Probe module for 8250/16550-type ISAPNP serial ports.
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*
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* Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
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*
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* Copyright (C) 2001 Russell King, All Rights Reserved.
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*
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* Ported to the Linux PnP Layer - (C) Adam Belay.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License.
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*
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* $Id: 8250_pnp.c,v 1.10 2002/07/21 21:32:30 rmk Exp $
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/pnp.h>
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <linux/serial_core.h>
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#include <linux/bitops.h>
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#include <asm/byteorder.h>
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#include "8250.h"
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#define UNKNOWN_DEV 0x3000
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static const struct pnp_device_id pnp_dev_table[] = {
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/* Archtek America Corp. */
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/* Archtek SmartLink Modem 3334BT Plug & Play */
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{ "AAC000F", 0 },
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/* Anchor Datacomm BV */
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/* SXPro 144 External Data Fax Modem Plug & Play */
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{ "ADC0001", 0 },
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/* SXPro 288 External Data Fax Modem Plug & Play */
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{ "ADC0002", 0 },
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/* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
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{ "AEI0250", 0 },
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/* Actiontec ISA PNP 56K X2 Fax Modem */
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{ "AEI1240", 0 },
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/* Rockwell 56K ACF II Fax+Data+Voice Modem */
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{ "AKY1021", 0 /*SPCI_FL_NO_SHIRQ*/ },
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/* AZT3005 PnP SOUND DEVICE */
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{ "AZT4001", 0 },
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/* Best Data Products Inc. Smart One 336F PnP Modem */
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{ "BDP3336", 0 },
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/* Boca Research */
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/* Boca Complete Ofc Communicator 14.4 Data-FAX */
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{ "BRI0A49", 0 },
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/* Boca Research 33,600 ACF Modem */
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{ "BRI1400", 0 },
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/* Boca 33.6 Kbps Internal FD34FSVD */
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{ "BRI3400", 0 },
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/* Boca 33.6 Kbps Internal FD34FSVD */
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{ "BRI0A49", 0 },
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/* Best Data Products Inc. Smart One 336F PnP Modem */
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{ "BDP3336", 0 },
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/* Computer Peripherals Inc */
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/* EuroViVa CommCenter-33.6 SP PnP */
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{ "CPI4050", 0 },
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/* Creative Labs */
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/* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
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{ "CTL3001", 0 },
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/* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
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{ "CTL3011", 0 },
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/* Creative */
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/* Creative Modem Blaster Flash56 DI5601-1 */
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{ "DMB1032", 0 },
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/* Creative Modem Blaster V.90 DI5660 */
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{ "DMB2001", 0 },
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/* E-Tech */
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/* E-Tech CyberBULLET PC56RVP */
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{ "ETT0002", 0 },
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/* FUJITSU */
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/* Fujitsu 33600 PnP-I2 R Plug & Play */
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{ "FUJ0202", 0 },
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/* Fujitsu FMV-FX431 Plug & Play */
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{ "FUJ0205", 0 },
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/* Fujitsu 33600 PnP-I4 R Plug & Play */
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{ "FUJ0206", 0 },
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/* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
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{ "FUJ0209", 0 },
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/* Archtek America Corp. */
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/* Archtek SmartLink Modem 3334BT Plug & Play */
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{ "GVC000F", 0 },
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/* Hayes */
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/* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
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{ "HAY0001", 0 },
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/* Hayes Optima 336 V.34 + FAX + Voice PnP */
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{ "HAY000C", 0 },
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/* Hayes Optima 336B V.34 + FAX + Voice PnP */
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{ "HAY000D", 0 },
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/* Hayes Accura 56K Ext Fax Modem PnP */
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{ "HAY5670", 0 },
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/* Hayes Accura 56K Ext Fax Modem PnP */
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{ "HAY5674", 0 },
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/* Hayes Accura 56K Fax Modem PnP */
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{ "HAY5675", 0 },
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/* Hayes 288, V.34 + FAX */
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{ "HAYF000", 0 },
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/* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
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{ "HAYF001", 0 },
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/* IBM */
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/* IBM Thinkpad 701 Internal Modem Voice */
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{ "IBM0033", 0 },
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/* Intertex */
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/* Intertex 28k8 33k6 Voice EXT PnP */
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{ "IXDC801", 0 },
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/* Intertex 33k6 56k Voice EXT PnP */
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{ "IXDC901", 0 },
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/* Intertex 28k8 33k6 Voice SP EXT PnP */
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{ "IXDD801", 0 },
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/* Intertex 33k6 56k Voice SP EXT PnP */
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{ "IXDD901", 0 },
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/* Intertex 28k8 33k6 Voice SP INT PnP */
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{ "IXDF401", 0 },
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/* Intertex 28k8 33k6 Voice SP EXT PnP */
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{ "IXDF801", 0 },
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/* Intertex 33k6 56k Voice SP EXT PnP */
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{ "IXDF901", 0 },
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/* Kortex International */
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/* KORTEX 28800 Externe PnP */
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{ "KOR4522", 0 },
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/* KXPro 33.6 Vocal ASVD PnP */
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{ "KORF661", 0 },
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/* Lasat */
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/* LASAT Internet 33600 PnP */
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{ "LAS4040", 0 },
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/* Lasat Safire 560 PnP */
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{ "LAS4540", 0 },
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/* Lasat Safire 336 PnP */
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{ "LAS5440", 0 },
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/* Microcom, Inc. */
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/* Microcom TravelPorte FAST V.34 Plug & Play */
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{ "MNP0281", 0 },
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/* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
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{ "MNP0336", 0 },
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/* Microcom DeskPorte FAST EP 28.8 Plug & Play */
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{ "MNP0339", 0 },
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/* Microcom DeskPorte 28.8P Plug & Play */
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{ "MNP0342", 0 },
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/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
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{ "MNP0500", 0 },
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/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
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{ "MNP0501", 0 },
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/* Microcom DeskPorte 28.8S Internal Plug & Play */
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{ "MNP0502", 0 },
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/* Motorola */
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/* Motorola BitSURFR Plug & Play */
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{ "MOT1105", 0 },
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/* Motorola TA210 Plug & Play */
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{ "MOT1111", 0 },
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/* Motorola HMTA 200 (ISDN) Plug & Play */
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{ "MOT1114", 0 },
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/* Motorola BitSURFR Plug & Play */
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{ "MOT1115", 0 },
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/* Motorola Lifestyle 28.8 Internal */
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{ "MOT1190", 0 },
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/* Motorola V.3400 Plug & Play */
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{ "MOT1501", 0 },
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/* Motorola Lifestyle 28.8 V.34 Plug & Play */
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{ "MOT1502", 0 },
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/* Motorola Power 28.8 V.34 Plug & Play */
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{ "MOT1505", 0 },
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/* Motorola ModemSURFR External 28.8 Plug & Play */
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{ "MOT1509", 0 },
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/* Motorola Premier 33.6 Desktop Plug & Play */
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{ "MOT150A", 0 },
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/* Motorola VoiceSURFR 56K External PnP */
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{ "MOT150F", 0 },
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/* Motorola ModemSURFR 56K External PnP */
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{ "MOT1510", 0 },
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/* Motorola ModemSURFR 56K Internal PnP */
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{ "MOT1550", 0 },
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/* Motorola ModemSURFR Internal 28.8 Plug & Play */
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{ "MOT1560", 0 },
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/* Motorola Premier 33.6 Internal Plug & Play */
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{ "MOT1580", 0 },
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/* Motorola OnlineSURFR 28.8 Internal Plug & Play */
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{ "MOT15B0", 0 },
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/* Motorola VoiceSURFR 56K Internal PnP */
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{ "MOT15F0", 0 },
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/* Com 1 */
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/* Deskline K56 Phone System PnP */
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{ "MVX00A1", 0 },
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/* PC Rider K56 Phone System PnP */
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{ "MVX00F2", 0 },
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/* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
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{ "nEC8241", 0 },
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/* Pace 56 Voice Internal Plug & Play Modem */
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{ "PMC2430", 0 },
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/* Generic */
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/* Generic standard PC COM port */
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{ "PNP0500", 0 },
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/* Generic 16550A-compatible COM port */
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{ "PNP0501", 0 },
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/* Compaq 14400 Modem */
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{ "PNPC000", 0 },
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/* Compaq 2400/9600 Modem */
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{ "PNPC001", 0 },
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/* Dial-Up Networking Serial Cable between 2 PCs */
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{ "PNPC031", 0 },
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/* Dial-Up Networking Parallel Cable between 2 PCs */
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{ "PNPC032", 0 },
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/* Standard 9600 bps Modem */
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{ "PNPC100", 0 },
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/* Standard 14400 bps Modem */
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{ "PNPC101", 0 },
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/* Standard 28800 bps Modem*/
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{ "PNPC102", 0 },
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/* Standard Modem*/
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{ "PNPC103", 0 },
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/* Standard 9600 bps Modem*/
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{ "PNPC104", 0 },
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/* Standard 14400 bps Modem*/
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{ "PNPC105", 0 },
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/* Standard 28800 bps Modem*/
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{ "PNPC106", 0 },
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/* Standard Modem */
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{ "PNPC107", 0 },
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/* Standard 9600 bps Modem */
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{ "PNPC108", 0 },
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/* Standard 14400 bps Modem */
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{ "PNPC109", 0 },
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/* Standard 28800 bps Modem */
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{ "PNPC10A", 0 },
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/* Standard Modem */
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{ "PNPC10B", 0 },
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/* Standard 9600 bps Modem */
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{ "PNPC10C", 0 },
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/* Standard 14400 bps Modem */
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{ "PNPC10D", 0 },
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/* Standard 28800 bps Modem */
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{ "PNPC10E", 0 },
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/* Standard Modem */
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{ "PNPC10F", 0 },
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/* Standard PCMCIA Card Modem */
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{ "PNP2000", 0 },
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/* Rockwell */
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/* Modular Technology */
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/* Rockwell 33.6 DPF Internal PnP */
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/* Modular Technology 33.6 Internal PnP */
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{ "ROK0030", 0 },
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/* Kortex International */
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/* KORTEX 14400 Externe PnP */
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{ "ROK0100", 0 },
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/* Rockwell 28.8 */
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{ "ROK4120", 0 },
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/* Viking Components, Inc */
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/* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
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{ "ROK4920", 0 },
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/* Rockwell */
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/* British Telecom */
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/* Modular Technology */
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/* Rockwell 33.6 DPF External PnP */
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/* BT Prologue 33.6 External PnP */
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/* Modular Technology 33.6 External PnP */
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{ "RSS00A0", 0 },
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/* Viking 56K FAX INT */
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{ "RSS0262", 0 },
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/* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
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{ "RSS0250", 0 },
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/* SupraExpress 28.8 Data/Fax PnP modem */
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{ "SUP1310", 0 },
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/* SupraExpress 33.6 Data/Fax PnP modem */
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{ "SUP1421", 0 },
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/* SupraExpress 33.6 Data/Fax PnP modem */
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{ "SUP1590", 0 },
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/* SupraExpress 336i Sp ASVD */
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{ "SUP1620", 0 },
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/* SupraExpress 33.6 Data/Fax PnP modem */
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{ "SUP1760", 0 },
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/* SupraExpress 56i Sp Intl */
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{ "SUP2171", 0 },
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/* Phoebe Micro */
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/* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
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{ "TEX0011", 0 },
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/* Archtek America Corp. */
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/* Archtek SmartLink Modem 3334BT Plug & Play */
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{ "UAC000F", 0 },
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/* 3Com Corp. */
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/* Gateway Telepath IIvi 33.6 */
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{ "USR0000", 0 },
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/* U.S. Robotics Sporster 33.6K Fax INT PnP */
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{ "USR0002", 0 },
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/* Sportster Vi 14.4 PnP FAX Voicemail */
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{ "USR0004", 0 },
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/* U.S. Robotics 33.6K Voice INT PnP */
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{ "USR0006", 0 },
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/* U.S. Robotics 33.6K Voice EXT PnP */
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{ "USR0007", 0 },
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/* U.S. Robotics Courier V.Everything INT PnP */
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{ "USR0009", 0 },
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/* U.S. Robotics 33.6K Voice INT PnP */
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{ "USR2002", 0 },
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/* U.S. Robotics 56K Voice INT PnP */
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{ "USR2070", 0 },
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/* U.S. Robotics 56K Voice EXT PnP */
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{ "USR2080", 0 },
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/* U.S. Robotics 56K FAX INT */
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{ "USR3031", 0 },
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/* U.S. Robotics 56K FAX INT */
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{ "USR3050", 0 },
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/* U.S. Robotics 56K Voice INT PnP */
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{ "USR3070", 0 },
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/* U.S. Robotics 56K Voice EXT PnP */
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{ "USR3080", 0 },
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/* U.S. Robotics 56K Voice INT PnP */
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{ "USR3090", 0 },
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/* U.S. Robotics 56K Message */
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{ "USR9100", 0 },
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/* U.S. Robotics 56K FAX EXT PnP*/
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{ "USR9160", 0 },
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/* U.S. Robotics 56K FAX INT PnP*/
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{ "USR9170", 0 },
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/* U.S. Robotics 56K Voice EXT PnP*/
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{ "USR9180", 0 },
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/* U.S. Robotics 56K Voice INT PnP*/
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{ "USR9190", 0 },
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/* Wacom tablets */
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{ "WACF004", 0 },
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{ "WACF005", 0 },
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{ "WACF006", 0 },
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/* Compaq touchscreen */
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{ "FPI2002", 0 },
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/* Fujitsu Stylistic touchscreens */
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{ "FUJ02B2", 0 },
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{ "FUJ02B3", 0 },
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/* Fujitsu Stylistic LT touchscreens */
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{ "FUJ02B4", 0 },
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/* Passive Fujitsu Stylistic touchscreens */
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{ "FUJ02B6", 0 },
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{ "FUJ02B7", 0 },
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{ "FUJ02B8", 0 },
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{ "FUJ02B9", 0 },
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{ "FUJ02BC", 0 },
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/* Rockwell's (PORALiNK) 33600 INT PNP */
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{ "WCI0003", 0 },
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/* Unkown PnP modems */
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{ "PNPCXXX", UNKNOWN_DEV },
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/* More unkown PnP modems */
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{ "PNPDXXX", UNKNOWN_DEV },
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{ "", 0 }
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};
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MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
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static char *modem_names[] __devinitdata = {
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"MODEM", "Modem", "modem", "FAX", "Fax", "fax",
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"56K", "56k", "K56", "33.6", "28.8", "14.4",
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"33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
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"33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
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};
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static int __devinit check_name(char *name)
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{
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char **tmp;
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for (tmp = modem_names; *tmp; tmp++)
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if (strstr(name, *tmp))
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return 1;
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return 0;
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}
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static int __devinit check_resources(struct pnp_option *option)
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{
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struct pnp_option *tmp;
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if (!option)
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return 0;
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for (tmp = option; tmp; tmp = tmp->next) {
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struct pnp_port *port;
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for (port = tmp->port; port; port = port->next)
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if ((port->size == 8) &&
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((port->min == 0x2f8) ||
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(port->min == 0x3f8) ||
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(port->min == 0x2e8) ||
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(port->min == 0x3e8)))
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return 1;
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}
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return 0;
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}
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/*
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* Given a complete unknown PnP device, try to use some heuristics to
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* detect modems. Currently use such heuristic set:
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* - dev->name or dev->bus->name must contain "modem" substring;
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* - device must have only one IO region (8 byte long) with base address
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* 0x2e8, 0x3e8, 0x2f8 or 0x3f8.
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*
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* Such detection looks very ugly, but can detect at least some of numerous
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* PnP modems, alternatively we must hardcode all modems in pnp_devices[]
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* table.
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*/
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static int __devinit serial_pnp_guess_board(struct pnp_dev *dev, int *flags)
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{
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if (!(check_name(pnp_dev_name(dev)) || (dev->card && check_name(dev->card->name))))
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return -ENODEV;
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if (check_resources(dev->independent))
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return 0;
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if (check_resources(dev->dependent))
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return 0;
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return -ENODEV;
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}
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static int __devinit
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serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
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{
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struct uart_port port;
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int ret, line, flags = dev_id->driver_data;
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if (flags & UNKNOWN_DEV) {
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ret = serial_pnp_guess_board(dev, &flags);
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if (ret < 0)
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return ret;
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}
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memset(&port, 0, sizeof(struct uart_port));
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port.irq = pnp_irq(dev, 0);
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if (pnp_port_valid(dev, 0)) {
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port.iobase = pnp_port_start(dev, 0);
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port.iotype = UPIO_PORT;
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} else if (pnp_mem_valid(dev, 0)) {
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port.mapbase = pnp_mem_start(dev, 0);
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port.iotype = UPIO_MEM;
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port.flags = UPF_IOREMAP;
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} else
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return -ENODEV;
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#ifdef SERIAL_DEBUG_PNP
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printk("Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
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port.iobase, port.mapbase, port.irq, port.iotype);
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#endif
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port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
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if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
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port.flags |= UPF_SHARE_IRQ;
|
|
port.uartclk = 1843200;
|
|
port.dev = &dev->dev;
|
|
|
|
line = serial8250_register_port(&port);
|
|
if (line < 0)
|
|
return -ENODEV;
|
|
|
|
pnp_set_drvdata(dev, (void *)((long)line + 1));
|
|
return 0;
|
|
}
|
|
|
|
static void __devexit serial_pnp_remove(struct pnp_dev *dev)
|
|
{
|
|
long line = (long)pnp_get_drvdata(dev);
|
|
if (line)
|
|
serial8250_unregister_port(line - 1);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int serial_pnp_suspend(struct pnp_dev *dev, pm_message_t state)
|
|
{
|
|
long line = (long)pnp_get_drvdata(dev);
|
|
|
|
if (!line)
|
|
return -ENODEV;
|
|
serial8250_suspend_port(line - 1);
|
|
return 0;
|
|
}
|
|
|
|
static int serial_pnp_resume(struct pnp_dev *dev)
|
|
{
|
|
long line = (long)pnp_get_drvdata(dev);
|
|
|
|
if (!line)
|
|
return -ENODEV;
|
|
serial8250_resume_port(line - 1);
|
|
return 0;
|
|
}
|
|
#else
|
|
#define serial_pnp_suspend NULL
|
|
#define serial_pnp_resume NULL
|
|
#endif /* CONFIG_PM */
|
|
|
|
static struct pnp_driver serial_pnp_driver = {
|
|
.name = "serial",
|
|
.probe = serial_pnp_probe,
|
|
.remove = __devexit_p(serial_pnp_remove),
|
|
.suspend = serial_pnp_suspend,
|
|
.resume = serial_pnp_resume,
|
|
.id_table = pnp_dev_table,
|
|
};
|
|
|
|
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");
|