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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2005-06-27 22:24:26 (GMT)
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-28 00:36:40 (GMT)
commitb189346cd10e28fa080347591066f0688405faee (patch)
treeabe63552e06223f082650cc0b97aadbc0d72ede1 /drivers
parent68ad9910b0525d0194f9c316c7cb14adbf8e0c0c (diff)
downloadlinux-fsl-qoriq-b189346cd10e28fa080347591066f0688405faee.tar.xz
[PATCH] ide: ide-generic, allow for capture of other unsupported devices
The ide-generic driver gives you DMA at bios tuned speed so can actually run a lot of unsupported devices quite well. It has a pci table so that it doesn't grab disks owned by other drivers but no way to override this. The patch adds an option ide-generic-all which makes the driver grab everything going that is IDE class. The diff is messy because I put the special case as case 0 to make the if conditional and long term maintenance easier. This has been in Fedora for some time. Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ide/pci/generic.c73
1 files changed, 48 insertions, 25 deletions
diff --git a/drivers/ide/pci/generic.c b/drivers/ide/pci/generic.c
index 4565cc3..da46577 100644
--- a/drivers/ide/pci/generic.c
+++ b/drivers/ide/pci/generic.c
@@ -39,6 +39,17 @@
#include <asm/io.h>
+static int ide_generic_all; /* Set to claim all devices */
+
+static int __init ide_generic_all_on(char *unused)
+{
+ ide_generic_all = 1;
+ printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
+ return 1;
+}
+
+__setup("all-generic-ide", ide_generic_all_on);
+
static void __devinit init_hwif_generic (ide_hwif_t *hwif)
{
switch(hwif->pci_dev->device) {
@@ -78,79 +89,85 @@ static void __devinit init_hwif_generic (ide_hwif_t *hwif)
static ide_pci_device_t generic_chipsets[] __devinitdata = {
{ /* 0 */
+ .name = "Unknown",
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = ON_BOARD,
+ },{ /* 1 */
.name = "NS87410",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = AUTODMA,
.enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
.bootable = ON_BOARD,
- },{ /* 1 */
+ },{ /* 2 */
.name = "SAMURAI",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = AUTODMA,
.bootable = ON_BOARD,
- },{ /* 2 */
+ },{ /* 3 */
.name = "HT6565",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = AUTODMA,
.bootable = ON_BOARD,
- },{ /* 3 */
+ },{ /* 4 */
.name = "UM8673F",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = NODMA,
.bootable = ON_BOARD,
- },{ /* 4 */
+ },{ /* 5 */
.name = "UM8886A",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = NODMA,
.bootable = ON_BOARD,
- },{ /* 5 */
+ },{ /* 6 */
.name = "UM8886BF",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = NODMA,
.bootable = ON_BOARD,
- },{ /* 6 */
+ },{ /* 7 */
.name = "HINT_IDE",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = AUTODMA,
.bootable = ON_BOARD,
- },{ /* 7 */
+ },{ /* 8 */
.name = "VIA_IDE",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = NOAUTODMA,
.bootable = ON_BOARD,
- },{ /* 8 */
+ },{ /* 9 */
.name = "OPTI621V",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = NOAUTODMA,
.bootable = ON_BOARD,
- },{ /* 9 */
+ },{ /* 10 */
.name = "VIA8237SATA",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = AUTODMA,
.bootable = OFF_BOARD,
- },{ /* 10 */
+ },{ /* 11 */
.name = "Piccolo0102",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = NOAUTODMA,
.bootable = ON_BOARD,
- },{ /* 11 */
+ },{ /* 12 */
.name = "Piccolo0103",
.init_hwif = init_hwif_generic,
.channels = 2,
.autodma = NOAUTODMA,
.bootable = ON_BOARD,
- },{ /* 12 */
+ },{ /* 13 */
.name = "Piccolo0105",
.init_hwif = init_hwif_generic,
.channels = 2,
@@ -174,6 +191,10 @@ static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_devi
u16 command;
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;
+
if (dev->vendor == PCI_VENDOR_ID_UMC &&
dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
(!(PCI_FUNC(dev->devfn) & 1)))
@@ -195,21 +216,23 @@ out:
}
static struct pci_device_id generic_pci_tbl[] = {
- { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- { PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
- { PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
- { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8673F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
- { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
- { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
- { PCI_VENDOR_ID_HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
- { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7},
- { PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8},
+ { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+ { PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+ { PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+ { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8673F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+ { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
+ { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
+ { PCI_VENDOR_ID_HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7},
+ { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8},
+ { PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9},
#ifdef CONFIG_BLK_DEV_IDE_SATA
- { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237_SATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9},
+ { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237_SATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10},
#endif
- { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10},
- { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11},
- { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12},
+ { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11},
+ { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12},
+ { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 13},
+ /* Must come last. If you add entries adjust this table appropriately and the init_one code */
+ { 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);