[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/hdreg.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.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>
1da177e4 LT	25	#include <linux/hdreg.h>
	26	#include <linux/pci.h>
	27	#include <linux/ide.h>
	28	#include <linux/init.h>
	29
b189346c AC	30	static int ide_generic_all; /* Set to claim all devices */
b189346c AC	31
3c5473f8 AB	32	/*
	33	* the module_param_named() was added for the modular case
	34	* the __setup() is left as compatibility for existing setups
	35	*/
	36	#ifndef MODULE
	37	static int __init ide_generic_all_on(char *unused)
	38	{
	39	ide_generic_all = 1;
2b52c959	40	printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
3c5473f8 AB	41	return 1;
3c5473f8 AB	42	}
d5271be6	43	const __setup("all-generic-ide", ide_generic_all_on);
3c5473f8	44	#endif
a4bea10e PJ	45	module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
a4bea10e PJ	46	MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
b189346c	47
8acf28c0	48	#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA \| IDE_HFLAG_FORCE_LEGACY_IRQS)
1da177e4	49
8acf28c0	50	#define DECLARE_GENERIC_PCI_DEV(name_str, extra_flags) \
1c3dd326 BZ	51	{ \
1c3dd326 BZ	52	.name = name_str, \
7cab14a7	53	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \| \
8acf28c0	54	extra_flags \| \
7cab14a7	55	IDE_HFLAG_BOOTABLE, \
5f8b6c34 BZ	56	.swdma_mask = ATA_SWDMA2, \
	57	.mwdma_mask = ATA_MWDMA2, \
	58	.udma_mask = ATA_UDMA6, \
1da177e4	59	}
1da177e4	60
85620436	61	static const struct ide_port_info generic_chipsets[] __devinitdata = {
47b68788	62	/* 0 */ DECLARE_GENERIC_PCI_DEV("Unknown", 0),
1c3dd326 BZ	63
1c3dd326 BZ	64	{ /* 1 */
1da177e4	65	.name = "NS87410",
1da177e4	66	.enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
7cab14a7 BZ	67	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7 BZ	68	IDE_HFLAG_BOOTABLE,
5f8b6c34 BZ	69	.swdma_mask = ATA_SWDMA2,
	70	.mwdma_mask = ATA_MWDMA2,
	71	.udma_mask = ATA_UDMA6,
1c3dd326 BZ	72	},
1c3dd326 BZ	73
47b68788 BZ	74	/* 2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI", 0),
47b68788 BZ	75	/* 3 */ DECLARE_GENERIC_PCI_DEV("HT6565", 0),
8acf28c0 BZ	76	/* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAGS_UMC),
	77	/* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAGS_UMC),
	78	/* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAGS_UMC),
47b68788 BZ	79	/* 7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE", 0),
	80	/* 8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE", IDE_HFLAG_NO_AUTODMA),
	81	/* 9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V", IDE_HFLAG_NO_AUTODMA),
1c3dd326 BZ	82
1c3dd326 BZ	83	{ /* 10 */
1da177e4	84	.name = "VIA8237SATA",
7cab14a7 BZ	85	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7 BZ	86	IDE_HFLAG_OFF_BOARD,
5f8b6c34 BZ	87	.swdma_mask = ATA_SWDMA2,
	88	.mwdma_mask = ATA_MWDMA2,
	89	.udma_mask = ATA_UDMA6,
1c3dd326 BZ	90	},
1c3dd326 BZ	91
47b68788 BZ	92	/* 11 */ DECLARE_GENERIC_PCI_DEV("Piccolo0102", IDE_HFLAG_NO_AUTODMA),
	93	/* 12 */ DECLARE_GENERIC_PCI_DEV("Piccolo0103", IDE_HFLAG_NO_AUTODMA),
	94	/* 13 */ DECLARE_GENERIC_PCI_DEV("Piccolo0105", IDE_HFLAG_NO_AUTODMA),
1c3dd326 BZ	95
1c3dd326 BZ	96	{ /* 14 */
2f09a7f4	97	.name = "Revolution",
8ac2b42a BZ	98	.host_flags = IDE_HFLAG_CLEAR_SIMPLEX \|
8ac2b42a BZ	99	IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7	100	IDE_HFLAG_OFF_BOARD,
5f8b6c34 BZ	101	.swdma_mask = ATA_SWDMA2,
	102	.mwdma_mask = ATA_MWDMA2,
	103	.udma_mask = ATA_UDMA6,
1da177e4 LT	104	}
	105	};
	106
	107	/**
	108	* generic_init_one - called when a PIIX is found
	109	* @dev: the generic device
	110	* @id: the matching pci id
	111	*
	112	* Called when the PCI registration layer (or the IDE initialization)
	113	* finds a device matching our IDE device tables.
	114	*/
	115
	116	static int __devinit generic_init_one(struct pci_dev dev, const struct pci_device_id id)
	117	{
85620436	118	const struct ide_port_info *d = &generic_chipsets[id->driver_data];
1da177e4 LT	119	int ret = -ENODEV;
1da177e4 LT	120
b189346c AC	121	/* Don't use the generic entry unless instructed to do so */
	122	if (id->driver_data == 0 && ide_generic_all == 0)
	123	goto out;
	124
ea307596 JS	125	switch (dev->vendor) {
	126	case PCI_VENDOR_ID_UMC:
	127	if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
	128	!(PCI_FUNC(dev->devfn) & 1))
	129	goto out; /* UM8886A/BF pair */
	130	break;
	131	case PCI_VENDOR_ID_OPTI:
	132	if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
	133	!(PCI_FUNC(dev->devfn) & 1))
	134	goto out;
	135	break;
	136	case PCI_VENDOR_ID_JMICRON:
	137	if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
	138	PCI_FUNC(dev->devfn) != 1)
	139	goto out;
	140	break;
	141	case PCI_VENDOR_ID_NS:
	142	if (dev->device == PCI_DEVICE_ID_NS_87410 &&
	143	(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
c333526f	144	goto out;
ea307596	145	break;
c333526f	146	}
15e0c694	147
3719bc5c	148	if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
ea307596	149	u16 command;
3719bc5c AC	150	pci_read_config_word(dev, PCI_COMMAND, &command);
3719bc5c AC	151	if (!(command & PCI_COMMAND_IO)) {
ea307596 JS	152	printk(KERN_INFO "Skipping disabled %s IDE "
ea307596 JS	153	"controller.\n", d->name);
3719bc5c AC	154	goto out;
3719bc5c AC	155	}
1da177e4 LT	156	}
	157	ret = ide_setup_pci_device(dev, d);
	158	out:
	159	return ret;
	160	}
	161
9cbcc5e3 BZ	162	static const struct pci_device_id generic_pci_tbl[] = {
	163	{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 },
	164	{ PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 },
	165	{ PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 3 },
	166	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 4 },
	167	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 5 },
	168	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 6 },
	169	{ PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 7 },
	170	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 8 },
	171	{ PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 9 },
1da177e4	172	#ifdef CONFIG_BLK_DEV_IDE_SATA
9cbcc5e3	173	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 10 },
1da177e4	174	#endif
9cbcc5e3 BZ	175	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 11 },
	176	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 12 },
	177	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 13 },
	178	{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 14 },
	179	/*
	180	* Must come last. If you add entries adjust
	181	* this table and generic_chipsets[] appropriately.
	182	*/
	183	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
1da177e4 LT	184	{ 0, },
	185	};
	186	MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
	187
	188	static struct pci_driver driver = {
	189	.name = "PCI_IDE",
	190	.id_table = generic_pci_tbl,
	191	.probe = generic_init_one,
	192	};
	193
82ab1eec	194	static int __init generic_ide_init(void)
1da177e4 LT	195	{
	196	return ide_pci_register_driver(&driver);
	197	}
	198
	199	module_init(generic_ide_init);
	200
	201	MODULE_AUTHOR("Andre Hedrick");
	202	MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
	203	MODULE_LICENSE("GPL");