[deliverable/linux.git] / drivers / ide / ide-pci-generic.c

/*
 *  Copyright (C) 2001-2002	Andre Hedrick <andre@linux-ide.org>
 *  Portions (C) Copyright 2002  Red Hat Inc
 *
 * 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/pci.h>
#include <linux/ide.h>
#include <linux/init.h>

#define DRV_NAME "ide_pci_generic"

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

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

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

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

	/*  2: SAMURAI / HT6565 / HINT_IDE */
	DECLARE_GENERIC_PCI_DEV(0),
	/*  3: UM8673F / UM8886A / UM8886BF */
	DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_DMA),
	/*  4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */
	DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA),

	{	/* 5: VIA8237SATA */
		.name		= DRV_NAME,
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
				  IDE_HFLAG_OFF_BOARD,
		.swdma_mask	= ATA_SWDMA2,
		.mwdma_mask	= ATA_MWDMA2,
		.udma_mask	= ATA_UDMA6,
	},

	{	/* 6: Revolution */
		.name		= DRV_NAME,
		.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 "%s %s: skipping disabled "
				"controller\n", d->name, pci_name(dev));
			goto out;
		}
	}
	ret = ide_pci_init_one(dev, d, NULL);
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),		 2 },
	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8673F),		 3 },
	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8886A),		 3 },
	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8886BF),		 3 },
	{ PCI_VDEVICE(HINT,	PCI_DEVICE_ID_HINT_VXPROII_IDE),	 2 },
	{ PCI_VDEVICE(VIA,	PCI_DEVICE_ID_VIA_82C561),		 4 },
	{ PCI_VDEVICE(OPTI,	PCI_DEVICE_ID_OPTI_82C558),		 4 },
#ifdef CONFIG_BLK_DEV_IDE_SATA
	{ PCI_VDEVICE(VIA,	PCI_DEVICE_ID_VIA_8237_SATA),		 5 },
#endif
	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO),		 4 },
	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO_1),	 4 },
	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO_2),	 4 },
	{ PCI_VDEVICE(NETCELL,	PCI_DEVICE_ID_REVOLUTION),		 6 },
	/*
	 * 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 generic_pci_driver = {
	.name		= "PCI_IDE",
	.id_table	= generic_pci_tbl,
	.probe		= generic_init_one,
	.remove		= ide_pci_remove,
	.suspend	= ide_pci_suspend,
	.resume		= ide_pci_resume,
};

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

static void __exit generic_ide_exit(void)
{
	pci_unregister_driver(&generic_pci_driver);
}

module_init(generic_ide_init);
module_exit(generic_ide_exit);

MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4	1	/*
1da177e4	2	* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
ccd32e22	3	* Portions (C) Copyright 2002 Red Hat Inc
1da177e4 LT	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/pci.h>
	26	#include <linux/ide.h>
	27	#include <linux/init.h>
	28
ced3ec8a BZ	29	#define DRV_NAME "ide_pci_generic"
ced3ec8a BZ	30
b189346c AC	31	static int ide_generic_all; /* Set to claim all devices */
b189346c AC	32
a4bea10e PJ	33	module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
a4bea10e PJ	34	MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
b189346c	35
ced3ec8a	36	#define DECLARE_GENERIC_PCI_DEV(extra_flags) \
1c3dd326	37	{ \
ced3ec8a	38	.name = DRV_NAME, \
7cab14a7	39	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \| \
5e71d9c5	40	extra_flags, \
5f8b6c34 BZ	41	.swdma_mask = ATA_SWDMA2, \
	42	.mwdma_mask = ATA_MWDMA2, \
	43	.udma_mask = ATA_UDMA6, \
1da177e4	44	}
1da177e4	45
85620436	46	static const struct ide_port_info generic_chipsets[] __devinitdata = {
ced3ec8a BZ	47	/* 0: Unknown */
ced3ec8a BZ	48	DECLARE_GENERIC_PCI_DEV(0),
1c3dd326	49
ced3ec8a BZ	50	{ /* 1: NS87410 */
ced3ec8a BZ	51	.name = DRV_NAME,
17deabdc	52	.enablebits = { {0x43, 0x08, 0x08}, {0x47, 0x08, 0x08} },
5e71d9c5	53	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
5f8b6c34 BZ	54	.swdma_mask = ATA_SWDMA2,
	55	.mwdma_mask = ATA_MWDMA2,
	56	.udma_mask = ATA_UDMA6,
1c3dd326 BZ	57	},
1c3dd326 BZ	58
ced3ec8a BZ	59	/* 2: SAMURAI / HT6565 / HINT_IDE */
	60	DECLARE_GENERIC_PCI_DEV(0),
	61	/* 3: UM8673F / UM8886A / UM8886BF */
2467922a	62	DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_DMA),
ced3ec8a BZ	63	/* 4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */
	64	DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA),
	65
	66	{ /* 5: VIA8237SATA */
	67	.name = DRV_NAME,
7cab14a7 BZ	68	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7 BZ	69	IDE_HFLAG_OFF_BOARD,
5f8b6c34 BZ	70	.swdma_mask = ATA_SWDMA2,
	71	.mwdma_mask = ATA_MWDMA2,
	72	.udma_mask = ATA_UDMA6,
1c3dd326 BZ	73	},
1c3dd326 BZ	74
ced3ec8a BZ	75	{ /* 6: Revolution */
ced3ec8a BZ	76	.name = DRV_NAME,
8ac2b42a BZ	77	.host_flags = IDE_HFLAG_CLEAR_SIMPLEX \|
8ac2b42a BZ	78	IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7	79	IDE_HFLAG_OFF_BOARD,
5f8b6c34 BZ	80	.swdma_mask = ATA_SWDMA2,
	81	.mwdma_mask = ATA_MWDMA2,
	82	.udma_mask = ATA_UDMA6,
1da177e4 LT	83	}
	84	};
	85
	86	/**
	87	* generic_init_one - called when a PIIX is found
	88	* @dev: the generic device
	89	* @id: the matching pci id
	90	*
	91	* Called when the PCI registration layer (or the IDE initialization)
	92	* finds a device matching our IDE device tables.
	93	*/
17deabdc	94
1da177e4 LT	95	static int __devinit generic_init_one(struct pci_dev dev, const struct pci_device_id id)
1da177e4 LT	96	{
85620436	97	const struct ide_port_info *d = &generic_chipsets[id->driver_data];
1da177e4 LT	98	int ret = -ENODEV;
1da177e4 LT	99
b189346c AC	100	/* Don't use the generic entry unless instructed to do so */
	101	if (id->driver_data == 0 && ide_generic_all == 0)
	102	goto out;
	103
ea307596 JS	104	switch (dev->vendor) {
	105	case PCI_VENDOR_ID_UMC:
	106	if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
	107	!(PCI_FUNC(dev->devfn) & 1))
	108	goto out; /* UM8886A/BF pair */
	109	break;
	110	case PCI_VENDOR_ID_OPTI:
	111	if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
	112	!(PCI_FUNC(dev->devfn) & 1))
	113	goto out;
	114	break;
	115	case PCI_VENDOR_ID_JMICRON:
	116	if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
	117	PCI_FUNC(dev->devfn) != 1)
	118	goto out;
	119	break;
	120	case PCI_VENDOR_ID_NS:
	121	if (dev->device == PCI_DEVICE_ID_NS_87410 &&
	122	(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
c333526f	123	goto out;
ea307596	124	break;
c333526f	125	}
15e0c694	126
3719bc5c	127	if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
ea307596	128	u16 command;
3719bc5c AC	129	pci_read_config_word(dev, PCI_COMMAND, &command);
3719bc5c AC	130	if (!(command & PCI_COMMAND_IO)) {
28cfd8af BZ	131	printk(KERN_INFO "%s %s: skipping disabled "
28cfd8af BZ	132	"controller\n", d->name, pci_name(dev));
3719bc5c AC	133	goto out;
3719bc5c AC	134	}
1da177e4	135	}
6cdf6eb3	136	ret = ide_pci_init_one(dev, d, NULL);
1da177e4 LT	137	out:
	138	return ret;
	139	}
	140
9cbcc5e3 BZ	141	static const struct pci_device_id generic_pci_tbl[] = {
	142	{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 },
	143	{ PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 },
ced3ec8a BZ	144	{ PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 2 },
	145	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 3 },
	146	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 3 },
	147	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 3 },
	148	{ PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 2 },
	149	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 4 },
	150	{ PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 4 },
1da177e4	151	#ifdef CONFIG_BLK_DEV_IDE_SATA
ced3ec8a	152	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 5 },
1da177e4	153	#endif
ced3ec8a BZ	154	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 4 },
	155	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 4 },
	156	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 4 },
	157	{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 6 },
9cbcc5e3 BZ	158	/*
	159	* Must come last. If you add entries adjust
	160	* this table and generic_chipsets[] appropriately.
	161	*/
	162	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
1da177e4 LT	163	{ 0, },
	164	};
	165	MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
	166
a9ab09e2	167	static struct pci_driver generic_pci_driver = {
1da177e4 LT	168	.name = "PCI_IDE",
	169	.id_table = generic_pci_tbl,
	170	.probe = generic_init_one,
f566bcae	171	.remove = ide_pci_remove,
feb22b7f BZ	172	.suspend = ide_pci_suspend,
feb22b7f BZ	173	.resume = ide_pci_resume,
1da177e4 LT	174	};
1da177e4 LT	175
82ab1eec	176	static int __init generic_ide_init(void)
1da177e4	177	{
a9ab09e2	178	return ide_pci_register_driver(&generic_pci_driver);
1da177e4 LT	179	}
1da177e4 LT	180
f566bcae BZ	181	static void __exit generic_ide_exit(void)
f566bcae BZ	182	{
a9ab09e2	183	pci_unregister_driver(&generic_pci_driver);
f566bcae BZ	184	}
f566bcae BZ	185
1da177e4	186	module_init(generic_ide_init);
f566bcae	187	module_exit(generic_ide_exit);
1da177e4 LT	188
	189	MODULE_AUTHOR("Andre Hedrick");
	190	MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
	191	MODULE_LICENSE("GPL");