Commit 78281c53 authored by Mark Lord's avatar Mark Lord Committed by Bartlomiej Zolnierkiewicz
Browse files

IDE Driver for Delkin/Lexar/etc.. cardbus CF adapter 

On Thursday 11 January 2007 23:17, Bartlomiej Zolnierkiewicz wrote:
> 
> My working IDE tree (against Linus' tree) now resides here:
> 
> 	http://kernel.org/pub/linux/kernel/people/bart/pata-2.6/patches/



Bart, here's a driver I've been keeping out-of-tree for the past couple
of years.  This is for the Delking/Lexar/ASKA/etc.. 32-bit cardbus IDE
CompactFlash adapter card.

It's probably way out of sync with the latest driver model (??), but it
still builds/works.  I'm not interested in doing much of a rewrite, other
than for libata someday, as I no longer use the card myself.

But lots of other people do seem to use it, so it might be nice to see it
"in-tree".

Signed-off-by: default avatarMark Lord <mlord@pobox.com>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 67881826

drivers/ide/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -167,6 +167,13 @@ config BLK_DEV_IDECS 
	  Support for Compact Flash cards, outboard IDE disks, tape drives,

	  and CD-ROM drives connected through a PCMCIA card.



config BLK_DEV_DELKIN

	tristate "Cardbus IDE support (Delkin/ASKA/Workbit)"

	depends on CARDBUS && PCI

	help

	  Support for Delkin, ASKA, and Workbit Cardbus CompactFlash

	  Adapters.  This may also work for similar SD and XD adapters.



config BLK_DEV_IDECD

	tristate "Include IDE/ATAPI CDROM support"

	---help---

drivers/ide/pci/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ obj-$(CONFIG_BLK_DEV_CS5530) += cs5530.o 
obj-$(CONFIG_BLK_DEV_CS5535)		+= cs5535.o

obj-$(CONFIG_BLK_DEV_SC1200)		+= sc1200.o

obj-$(CONFIG_BLK_DEV_CY82C693)		+= cy82c693.o

obj-$(CONFIG_BLK_DEV_DELKIN)		+= delkin_cb.o

obj-$(CONFIG_BLK_DEV_HPT34X)		+= hpt34x.o

obj-$(CONFIG_BLK_DEV_HPT366)		+= hpt366.o

obj-$(CONFIG_BLK_DEV_IT8213)		+= it8213.o

drivers/ide/pci/delkin_cb.c

0 → 100644
+140 −0
Original line number Diff line number Diff line 
/*

 *  linux/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/autoconf.h>

#include <linux/types.h>

#include <linux/module.h>

#include <linux/mm.h>

#include <linux/blkdev.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;



	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);

	}

	pci_release_regions(dev);	/* IDE layer handles regions itself */



	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 */



	rc = ide_register_hw_with_fixup(&hw, &hwif, ide_undecoded_slave);

	if (rc < 0) {

		printk(KERN_ERR "delkin_cb: ide_register_hw failed (%d)\n", rc);

		pci_disable_device(dev);

		return -ENODEV;

	}

	pci_set_drvdata(dev, hwif);

	hwif->pci_dev = dev;

	drive = &hwif->drives[0];

	if (drive->present) {

		drive->io_32bit = 1;

		drive->unmask   = 1;

	}

	return 0;

}



static void

delkin_cb_remove (struct pci_dev *dev)

{

	ide_hwif_t *hwif = pci_get_drvdata(dev);



	if (hwif)

		ide_unregister(hwif->index);

	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},

	{ 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_module_init(&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");

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