[PATCH] 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 Signed-off-by: Bartlomiej Zolnierkiewicz --- --- drivers/ide/Kconfig | 7 ++ drivers/ide/pci/Makefile | 1 drivers/ide/pci/delkin_cb.c | 140 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 148 insertions(+) Index: b/drivers/ide/Kconfig =================================================================== --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -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--- Index: b/drivers/ide/pci/Makefile =================================================================== --- a/drivers/ide/pci/Makefile +++ b/drivers/ide/pci/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_BLK_DEV_CS5530) += cs5530. obj-$(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 Index: b/drivers/ide/pci/delkin_cb.c =================================================================== --- /dev/null +++ b/drivers/ide/pci/delkin_cb.c @@ -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 +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * 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"); +