[mirror_ubuntu-eoan-kernel.git] / drivers / ide / pci / delkin_cb.c

/*
 *  Created 20 Oct 2004 by Mark Lord
 *
 *  Basic support for Delkin/ASKA/Workbit Cardbus CompactFlash adapter
 *
 *  Modeled after the 16-bit PCMCIA driver: ide-cs.c
 *
 *  This is slightly peculiar, in that it is a PCI driver,
 *  but is NOT an IDE PCI driver -- the IDE layer does not directly
 *  support hot insertion/removal of PCI interfaces, so this driver
 *  is unable to use the IDE PCI interfaces.  Instead, it uses the
 *  same interfaces as the ide-cs (PCMCIA) driver uses.
 *  On the plus side, the driver is also smaller/simpler this way.
 *
 *  This file is subject to the terms and conditions of the GNU General Public
 *  License.  See the file COPYING in the main directory of this archive for
 *  more details.
 */

#include <linux/types.h>
#include <linux/module.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
#include <linux/pci.h>

#include <asm/io.h>

/*
 * No chip documentation has yet been found,
 * so these configuration values were pulled from
 * a running Win98 system using "debug".
 * This gives around 3MByte/second read performance,
 * which is about 2/3 of what the chip is capable of.
 *
 * There is also a 4KByte mmio region on the card,
 * but its purpose has yet to be reverse-engineered.
 */
static const u8 setup[] = {
	0x00, 0x05, 0xbe, 0x01, 0x20, 0x8f, 0x00, 0x00,
	0xa4, 0x1f, 0xb3, 0x1b, 0x00, 0x00, 0x00, 0x80,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0xa4, 0x83, 0x02, 0x13,
};

static int __devinit
delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id)
{
	unsigned long base;
	hw_regs_t hw;
	ide_hwif_t *hwif = NULL;
	ide_drive_t *drive;
	int i, rc;
	u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };

	rc = pci_enable_device(dev);
	if (rc) {
		printk(KERN_ERR "delkin_cb: pci_enable_device failed (%d)\n", rc);
		return rc;
	}
	rc = pci_request_regions(dev, "delkin_cb");
	if (rc) {
		printk(KERN_ERR "delkin_cb: pci_request_regions failed (%d)\n", rc);
		pci_disable_device(dev);
		return rc;
	}
	base = pci_resource_start(dev, 0);
	outb(0x02, base + 0x1e);	/* set nIEN to block interrupts */
	inb(base + 0x17);		/* read status to clear interrupts */
	for (i = 0; i < sizeof(setup); ++i) {
		if (setup[i])
			outb(setup[i], base + i);
	}

	memset(&hw, 0, sizeof(hw));
	ide_std_init_ports(&hw, base + 0x10, base + 0x1e);
	hw.irq = dev->irq;
	hw.chipset = ide_pci;		/* this enables IRQ sharing */

	hwif = ide_find_port();
	if (hwif == NULL)
		goto out_disable;

	i = hwif->index;

	if (hwif->present)
		ide_unregister(i);
	else
		ide_init_port_data(hwif, i);

	ide_init_port_hw(hwif, &hw);
	hwif->mmio = 1;
	hwif->quirkproc = &ide_undecoded_slave;

	idx[0] = i;

	ide_device_add(idx, NULL);

	if (!hwif->present)
		goto out_disable;

	pci_set_drvdata(dev, hwif);
	hwif->dev = &dev->dev;
	drive = &hwif->drives[0];
	if (drive->present) {
		drive->io_32bit = 1;
		drive->unmask   = 1;
	}
	return 0;

out_disable:
	printk(KERN_ERR "delkin_cb: no IDE devices found\n");
	pci_release_regions(dev);
	pci_disable_device(dev);
	return -ENODEV;
}

static void
delkin_cb_remove (struct pci_dev *dev)
{
	ide_hwif_t *hwif = pci_get_drvdata(dev);

	if (hwif)
		ide_unregister(hwif->index);

	pci_release_regions(dev);
	pci_disable_device(dev);
}

static struct pci_device_id delkin_cb_pci_tbl[] __devinitdata = {
	{ 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
	{ 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
	{ 0, },
};
MODULE_DEVICE_TABLE(pci, delkin_cb_pci_tbl);

static struct pci_driver driver = {
	.name		= "Delkin-ASKA-Workbit Cardbus IDE",
	.id_table	= delkin_cb_pci_tbl,
	.probe		= delkin_cb_probe,
	.remove		= delkin_cb_remove,
};

static int
delkin_cb_init (void)
{
	return pci_register_driver(&driver);
}

static void
delkin_cb_exit (void)
{
	pci_unregister_driver(&driver);
}

module_init(delkin_cb_init);
module_exit(delkin_cb_exit);

MODULE_AUTHOR("Mark Lord");
MODULE_DESCRIPTION("Basic support for Delkin/ASKA/Workbit Cardbus IDE");
MODULE_LICENSE("GPL");
Commit	Line	Data
78281c53	1	/*
78281c53 ML	2	* Created 20 Oct 2004 by Mark Lord
	3	*
	4	* Basic support for Delkin/ASKA/Workbit Cardbus CompactFlash adapter
	5	*
	6	* Modeled after the 16-bit PCMCIA driver: ide-cs.c
	7	*
	8	* This is slightly peculiar, in that it is a PCI driver,
	9	* but is NOT an IDE PCI driver -- the IDE layer does not directly
	10	* support hot insertion/removal of PCI interfaces, so this driver
	11	* is unable to use the IDE PCI interfaces. Instead, it uses the
	12	* same interfaces as the ide-cs (PCMCIA) driver uses.
	13	* On the plus side, the driver is also smaller/simpler this way.
	14	*
	15	* This file is subject to the terms and conditions of the GNU General Public
	16	* License. See the file COPYING in the main directory of this archive for
	17	* more details.
	18	*/
78829dd9	19
78281c53 ML	20	#include <linux/types.h>
78281c53 ML	21	#include <linux/module.h>
78281c53 ML	22	#include <linux/hdreg.h>
	23	#include <linux/ide.h>
	24	#include <linux/init.h>
	25	#include <linux/pci.h>
78829dd9	26
78281c53 ML	27	#include <asm/io.h>
	28
	29	/*
	30	* No chip documentation has yet been found,
	31	* so these configuration values were pulled from
	32	* a running Win98 system using "debug".
	33	* This gives around 3MByte/second read performance,
	34	* which is about 2/3 of what the chip is capable of.
	35	*
	36	* There is also a 4KByte mmio region on the card,
	37	* but its purpose has yet to be reverse-engineered.
	38	*/
	39	static const u8 setup[] = {
	40	0x00, 0x05, 0xbe, 0x01, 0x20, 0x8f, 0x00, 0x00,
	41	0xa4, 0x1f, 0xb3, 0x1b, 0x00, 0x00, 0x00, 0x80,
	42	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	43	0x00, 0x00, 0x00, 0x00, 0xa4, 0x83, 0x02, 0x13,
	44	};
	45
	46	static int __devinit
	47	delkin_cb_probe (struct pci_dev dev, const struct pci_device_id id)
	48	{
	49	unsigned long base;
	50	hw_regs_t hw;
	51	ide_hwif_t *hwif = NULL;
	52	ide_drive_t *drive;
	53	int i, rc;
9e016a71	54	u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
78281c53 ML	55
	56	rc = pci_enable_device(dev);
	57	if (rc) {
	58	printk(KERN_ERR "delkin_cb: pci_enable_device failed (%d)\n", rc);
	59	return rc;
	60	}
	61	rc = pci_request_regions(dev, "delkin_cb");
	62	if (rc) {
	63	printk(KERN_ERR "delkin_cb: pci_request_regions failed (%d)\n", rc);
	64	pci_disable_device(dev);
	65	return rc;
	66	}
	67	base = pci_resource_start(dev, 0);
	68	outb(0x02, base + 0x1e); /* set nIEN to block interrupts */
	69	inb(base + 0x17); /* read status to clear interrupts */
	70	for (i = 0; i < sizeof(setup); ++i) {
	71	if (setup[i])
	72	outb(setup[i], base + i);
	73	}
78281c53 ML	74
	75	memset(&hw, 0, sizeof(hw));
	76	ide_std_init_ports(&hw, base + 0x10, base + 0x1e);
	77	hw.irq = dev->irq;
	78	hw.chipset = ide_pci; /* this enables IRQ sharing */
	79
59bff5ba	80	hwif = ide_find_port();
9e016a71 BZ	81	if (hwif == NULL)
	82	goto out_disable;
	83
	84	i = hwif->index;
	85
	86	if (hwif->present)
93de00fd	87	ide_unregister(i);
2304dc64	88	else
9e016a71 BZ	89	ide_init_port_data(hwif, i);
	90
	91	ide_init_port_hw(hwif, &hw);
7f6f33c1	92	hwif->mmio = 1;
9e016a71 BZ	93	hwif->quirkproc = &ide_undecoded_slave;
	94
	95	idx[0] = i;
	96
	97	ide_device_add(idx, NULL);
	98
	99	if (!hwif->present)
	100	goto out_disable;
	101
78281c53	102	pci_set_drvdata(dev, hwif);
36501650	103	hwif->dev = &dev->dev;
78281c53 ML	104	drive = &hwif->drives[0];
	105	if (drive->present) {
	106	drive->io_32bit = 1;
	107	drive->unmask = 1;
	108	}
	109	return 0;
9e016a71 BZ	110
	111	out_disable:
	112	printk(KERN_ERR "delkin_cb: no IDE devices found\n");
7f6f33c1	113	pci_release_regions(dev);
9e016a71 BZ	114	pci_disable_device(dev);
9e016a71 BZ	115	return -ENODEV;
78281c53 ML	116	}
	117
	118	static void
	119	delkin_cb_remove (struct pci_dev *dev)
	120	{
	121	ide_hwif_t *hwif = pci_get_drvdata(dev);
	122
	123	if (hwif)
93de00fd	124	ide_unregister(hwif->index);
f82c2b17	125
7f6f33c1	126	pci_release_regions(dev);
78281c53 ML	127	pci_disable_device(dev);
	128	}
	129
	130	static struct pci_device_id delkin_cb_pci_tbl[] __devinitdata = {
	131	{ 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
2571b16d	132	{ 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
78281c53 ML	133	{ 0, },
	134	};
	135	MODULE_DEVICE_TABLE(pci, delkin_cb_pci_tbl);
	136
	137	static struct pci_driver driver = {
	138	.name = "Delkin-ASKA-Workbit Cardbus IDE",
	139	.id_table = delkin_cb_pci_tbl,
	140	.probe = delkin_cb_probe,
	141	.remove = delkin_cb_remove,
	142	};
	143
	144	static int
	145	delkin_cb_init (void)
	146	{
e76ecf86	147	return pci_register_driver(&driver);
78281c53 ML	148	}
	149
	150	static void
	151	delkin_cb_exit (void)
	152	{
	153	pci_unregister_driver(&driver);
	154	}
	155
	156	module_init(delkin_cb_init);
	157	module_exit(delkin_cb_exit);
	158
	159	MODULE_AUTHOR("Mark Lord");
	160	MODULE_DESCRIPTION("Basic support for Delkin/ASKA/Workbit Cardbus IDE");
	161	MODULE_LICENSE("GPL");
	162