[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / ide / pci / generic.c

/*
 *  Copyright (C) 2001-2002	Andre Hedrick <andre@linux-ide.org>
 *  Portions (C) Copyright 2002  Red Hat Inc <alan@redhat.com>
 *
 * 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, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * For the avoidance of doubt the "preferred form" of this code is one which
 * is in an open non patent encumbered format. Where cryptographic key signing
 * forms part of the process of creating an executable the information
 * including keys needed to generate an equivalently functional executable
 * are deemed to be part of the source code.
 */

#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>

#include <asm/io.h>

static int ide_generic_all;		/* Set to claim all devices */

/*
 * the module_param_named() was added for the modular case
 * the __setup() is left as compatibility for existing setups
 */
#ifndef MODULE
static int __init ide_generic_all_on(char *unused)
{
	ide_generic_all = 1;
	printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
	return 1;
}
const __setup("all-generic-ide", ide_generic_all_on);
#endif
module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");

#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)

#define DECLARE_GENERIC_PCI_DEV(name_str, extra_flags) \
	{ \
		.name		= name_str, \
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
				  extra_flags | \
				  IDE_HFLAG_BOOTABLE, \
		.swdma_mask	= ATA_SWDMA2, \
		.mwdma_mask	= ATA_MWDMA2, \
		.udma_mask	= ATA_UDMA6, \
	}

static const struct ide_port_info generic_chipsets[] __devinitdata = {
	/*  0 */ DECLARE_GENERIC_PCI_DEV("Unknown",	0),

	{	/* 1 */
		.name		= "NS87410",
		.enablebits	= {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
				  IDE_HFLAG_BOOTABLE,
		.swdma_mask	= ATA_SWDMA2,
		.mwdma_mask	= ATA_MWDMA2,
		.udma_mask	= ATA_UDMA6,
	},

	/*  2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI",	0),
	/*  3 */ DECLARE_GENERIC_PCI_DEV("HT6565",	0),
	/*  4 */ DECLARE_GENERIC_PCI_DEV("UM8673F",	IDE_HFLAGS_UMC),
	/*  5 */ DECLARE_GENERIC_PCI_DEV("UM8886A",	IDE_HFLAGS_UMC),
	/*  6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF",	IDE_HFLAGS_UMC),
	/*  7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE",	0),
	/*  8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE",	IDE_HFLAG_NO_AUTODMA),
	/*  9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V",	IDE_HFLAG_NO_AUTODMA),

	{	/* 10 */
		.name		= "VIA8237SATA",
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
				  IDE_HFLAG_OFF_BOARD,
		.swdma_mask	= ATA_SWDMA2,
		.mwdma_mask	= ATA_MWDMA2,
		.udma_mask	= ATA_UDMA6,
	},

	/* 11 */ DECLARE_GENERIC_PCI_DEV("Piccolo0102",	IDE_HFLAG_NO_AUTODMA),
	/* 12 */ DECLARE_GENERIC_PCI_DEV("Piccolo0103",	IDE_HFLAG_NO_AUTODMA),
	/* 13 */ DECLARE_GENERIC_PCI_DEV("Piccolo0105",	IDE_HFLAG_NO_AUTODMA),

	{	/* 14 */
		.name		= "Revolution",
		.host_flags	= IDE_HFLAG_CLEAR_SIMPLEX |
				  IDE_HFLAG_TRUST_BIOS_FOR_DMA |
				  IDE_HFLAG_OFF_BOARD,
		.swdma_mask	= ATA_SWDMA2,
		.mwdma_mask	= ATA_MWDMA2,
		.udma_mask	= ATA_UDMA6,
	}
};

/**
 *	generic_init_one	-	called when a PIIX is found
 *	@dev: the generic device
 *	@id: the matching pci id
 *
 *	Called when the PCI registration layer (or the IDE initialization)
 *	finds a device matching our IDE device tables.
 */
 
static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
	const struct ide_port_info *d = &generic_chipsets[id->driver_data];
	int ret = -ENODEV;

	/* Don't use the generic entry unless instructed to do so */
	if (id->driver_data == 0 && ide_generic_all == 0)
			goto out;

	switch (dev->vendor) {
	case PCI_VENDOR_ID_UMC:
		if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
				!(PCI_FUNC(dev->devfn) & 1))
			goto out; /* UM8886A/BF pair */
		break;
	case PCI_VENDOR_ID_OPTI:
		if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
				!(PCI_FUNC(dev->devfn) & 1))
			goto out;
		break;
	case PCI_VENDOR_ID_JMICRON:
		if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
				PCI_FUNC(dev->devfn) != 1)
			goto out;
		break;
	case PCI_VENDOR_ID_NS:
		if (dev->device == PCI_DEVICE_ID_NS_87410 &&
				(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
			goto out;
		break;
	}

	if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
		u16 command;
		pci_read_config_word(dev, PCI_COMMAND, &command);
		if (!(command & PCI_COMMAND_IO)) {
			printk(KERN_INFO "Skipping disabled %s IDE "
					"controller.\n", d->name);
			goto out;
		}
	}
	ret = ide_setup_pci_device(dev, d);
out:
	return ret;
}

static const struct pci_device_id generic_pci_tbl[] = {
	{ PCI_VDEVICE(NS,	PCI_DEVICE_ID_NS_87410),		 1 },
	{ PCI_VDEVICE(PCTECH,	PCI_DEVICE_ID_PCTECH_SAMURAI_IDE),	 2 },
	{ PCI_VDEVICE(HOLTEK,	PCI_DEVICE_ID_HOLTEK_6565),		 3 },
	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8673F),		 4 },
	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8886A),		 5 },
	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8886BF),		 6 },
	{ PCI_VDEVICE(HINT,	PCI_DEVICE_ID_HINT_VXPROII_IDE),	 7 },
	{ PCI_VDEVICE(VIA,	PCI_DEVICE_ID_VIA_82C561),		 8 },
	{ PCI_VDEVICE(OPTI,	PCI_DEVICE_ID_OPTI_82C558),		 9 },
#ifdef CONFIG_BLK_DEV_IDE_SATA
	{ PCI_VDEVICE(VIA,	PCI_DEVICE_ID_VIA_8237_SATA),		10 },
#endif
	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO),		11 },
	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO_1),	12 },
	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO_2),	13 },
	{ PCI_VDEVICE(NETCELL,	PCI_DEVICE_ID_REVOLUTION),		14 },
	/*
	 * Must come last.  If you add entries adjust
	 * this table and generic_chipsets[] appropriately.
	 */
	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
	{ 0, },
};
MODULE_DEVICE_TABLE(pci, generic_pci_tbl);

static struct pci_driver driver = {
	.name		= "PCI_IDE",
	.id_table	= generic_pci_tbl,
	.probe		= generic_init_one,
};

static int __init generic_ide_init(void)
{
	return ide_pci_register_driver(&driver);
}

module_init(generic_ide_init);

MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
	3	* Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com>
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of the GNU General Public License as published by the
	7	* Free Software Foundation; either version 2, or (at your option) any
	8	* later version.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* For the avoidance of doubt the "preferred form" of this code is one which
	16	* is in an open non patent encumbered format. Where cryptographic key signing
	17	* forms part of the process of creating an executable the information
	18	* including keys needed to generate an equivalently functional executable
	19	* are deemed to be part of the source code.
	20	*/
	21
1da177e4 LT	22	#include <linux/types.h>
	23	#include <linux/module.h>
	24	#include <linux/kernel.h>
	25	#include <linux/delay.h>
	26	#include <linux/timer.h>
	27	#include <linux/mm.h>
	28	#include <linux/ioport.h>
	29	#include <linux/blkdev.h>
	30	#include <linux/hdreg.h>
	31	#include <linux/pci.h>
	32	#include <linux/ide.h>
	33	#include <linux/init.h>
	34
	35	#include <asm/io.h>
	36
b189346c AC	37	static int ide_generic_all; /* Set to claim all devices */
b189346c AC	38
3c5473f8 AB	39	/*
	40	* the module_param_named() was added for the modular case
	41	* the __setup() is left as compatibility for existing setups
	42	*/
	43	#ifndef MODULE
	44	static int __init ide_generic_all_on(char *unused)
	45	{
	46	ide_generic_all = 1;
2b52c959	47	printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
3c5473f8 AB	48	return 1;
3c5473f8 AB	49	}
d5271be6	50	const __setup("all-generic-ide", ide_generic_all_on);
3c5473f8	51	#endif
a4bea10e PJ	52	module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
a4bea10e PJ	53	MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
b189346c	54
8acf28c0	55	#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA \| IDE_HFLAG_FORCE_LEGACY_IRQS)
1da177e4	56
8acf28c0	57	#define DECLARE_GENERIC_PCI_DEV(name_str, extra_flags) \
1c3dd326 BZ	58	{ \
1c3dd326 BZ	59	.name = name_str, \
7cab14a7	60	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \| \
8acf28c0	61	extra_flags \| \
7cab14a7	62	IDE_HFLAG_BOOTABLE, \
5f8b6c34 BZ	63	.swdma_mask = ATA_SWDMA2, \
	64	.mwdma_mask = ATA_MWDMA2, \
	65	.udma_mask = ATA_UDMA6, \
1da177e4	66	}
1da177e4	67
85620436	68	static const struct ide_port_info generic_chipsets[] __devinitdata = {
47b68788	69	/* 0 */ DECLARE_GENERIC_PCI_DEV("Unknown", 0),
1c3dd326 BZ	70
1c3dd326 BZ	71	{ /* 1 */
1da177e4	72	.name = "NS87410",
1da177e4	73	.enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
7cab14a7 BZ	74	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7 BZ	75	IDE_HFLAG_BOOTABLE,
5f8b6c34 BZ	76	.swdma_mask = ATA_SWDMA2,
	77	.mwdma_mask = ATA_MWDMA2,
	78	.udma_mask = ATA_UDMA6,
1c3dd326 BZ	79	},
1c3dd326 BZ	80
47b68788 BZ	81	/* 2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI", 0),
47b68788 BZ	82	/* 3 */ DECLARE_GENERIC_PCI_DEV("HT6565", 0),
8acf28c0 BZ	83	/* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAGS_UMC),
	84	/* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAGS_UMC),
	85	/* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAGS_UMC),
47b68788 BZ	86	/* 7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE", 0),
	87	/* 8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE", IDE_HFLAG_NO_AUTODMA),
	88	/* 9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V", IDE_HFLAG_NO_AUTODMA),
1c3dd326 BZ	89
1c3dd326 BZ	90	{ /* 10 */
1da177e4	91	.name = "VIA8237SATA",
7cab14a7 BZ	92	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7 BZ	93	IDE_HFLAG_OFF_BOARD,
5f8b6c34 BZ	94	.swdma_mask = ATA_SWDMA2,
	95	.mwdma_mask = ATA_MWDMA2,
	96	.udma_mask = ATA_UDMA6,
1c3dd326 BZ	97	},
1c3dd326 BZ	98
47b68788 BZ	99	/* 11 */ DECLARE_GENERIC_PCI_DEV("Piccolo0102", IDE_HFLAG_NO_AUTODMA),
	100	/* 12 */ DECLARE_GENERIC_PCI_DEV("Piccolo0103", IDE_HFLAG_NO_AUTODMA),
	101	/* 13 */ DECLARE_GENERIC_PCI_DEV("Piccolo0105", IDE_HFLAG_NO_AUTODMA),
1c3dd326 BZ	102
1c3dd326 BZ	103	{ /* 14 */
2f09a7f4	104	.name = "Revolution",
8ac2b42a BZ	105	.host_flags = IDE_HFLAG_CLEAR_SIMPLEX \|
8ac2b42a BZ	106	IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7	107	IDE_HFLAG_OFF_BOARD,
5f8b6c34 BZ	108	.swdma_mask = ATA_SWDMA2,
	109	.mwdma_mask = ATA_MWDMA2,
	110	.udma_mask = ATA_UDMA6,
1da177e4 LT	111	}
	112	};
	113
	114	/**
	115	* generic_init_one - called when a PIIX is found
	116	* @dev: the generic device
	117	* @id: the matching pci id
	118	*
	119	* Called when the PCI registration layer (or the IDE initialization)
	120	* finds a device matching our IDE device tables.
	121	*/
	122
	123	static int __devinit generic_init_one(struct pci_dev dev, const struct pci_device_id id)
	124	{
85620436	125	const struct ide_port_info *d = &generic_chipsets[id->driver_data];
1da177e4 LT	126	int ret = -ENODEV;
1da177e4 LT	127
b189346c AC	128	/* Don't use the generic entry unless instructed to do so */
	129	if (id->driver_data == 0 && ide_generic_all == 0)
	130	goto out;
	131
ea307596 JS	132	switch (dev->vendor) {
	133	case PCI_VENDOR_ID_UMC:
	134	if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
	135	!(PCI_FUNC(dev->devfn) & 1))
	136	goto out; /* UM8886A/BF pair */
	137	break;
	138	case PCI_VENDOR_ID_OPTI:
	139	if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
	140	!(PCI_FUNC(dev->devfn) & 1))
	141	goto out;
	142	break;
	143	case PCI_VENDOR_ID_JMICRON:
	144	if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
	145	PCI_FUNC(dev->devfn) != 1)
	146	goto out;
	147	break;
	148	case PCI_VENDOR_ID_NS:
	149	if (dev->device == PCI_DEVICE_ID_NS_87410 &&
	150	(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
c333526f	151	goto out;
ea307596	152	break;
c333526f	153	}
15e0c694	154
3719bc5c	155	if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
ea307596	156	u16 command;
3719bc5c AC	157	pci_read_config_word(dev, PCI_COMMAND, &command);
3719bc5c AC	158	if (!(command & PCI_COMMAND_IO)) {
ea307596 JS	159	printk(KERN_INFO "Skipping disabled %s IDE "
ea307596 JS	160	"controller.\n", d->name);
3719bc5c AC	161	goto out;
3719bc5c AC	162	}
1da177e4 LT	163	}
	164	ret = ide_setup_pci_device(dev, d);
	165	out:
	166	return ret;
	167	}
	168
9cbcc5e3 BZ	169	static const struct pci_device_id generic_pci_tbl[] = {
	170	{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 },
	171	{ PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 },
	172	{ PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 3 },
	173	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 4 },
	174	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 5 },
	175	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 6 },
	176	{ PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 7 },
	177	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 8 },
	178	{ PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 9 },
1da177e4	179	#ifdef CONFIG_BLK_DEV_IDE_SATA
9cbcc5e3	180	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 10 },
1da177e4	181	#endif
9cbcc5e3 BZ	182	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 11 },
	183	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 12 },
	184	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 13 },
	185	{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 14 },
	186	/*
	187	* Must come last. If you add entries adjust
	188	* this table and generic_chipsets[] appropriately.
	189	*/
	190	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
1da177e4 LT	191	{ 0, },
	192	};
	193	MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
	194
	195	static struct pci_driver driver = {
	196	.name = "PCI_IDE",
	197	.id_table = generic_pci_tbl,
	198	.probe = generic_init_one,
	199	};
	200
82ab1eec	201	static int __init generic_ide_init(void)
1da177e4 LT	202	{
	203	return ide_pci_register_driver(&driver);
	204	}
	205
	206	module_init(generic_ide_init);
	207
	208	MODULE_AUTHOR("Andre Hedrick");
	209	MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
	210	MODULE_LICENSE("GPL");