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: Mark Lord <mlord@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Mark Lord 2007-02-07 18:19:32 +01:00 committed by Bartlomiej Zolnierkiewicz
parent 6788182602
commit 78281c5350
3 changed files with 148 additions and 0 deletions

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@ -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---

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@ -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

140
drivers/ide/pci/delkin_cb.c Normal file
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@ -0,0 +1,140 @@
/*
* 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");