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ide: move legacy ISA/VLB ports handling to ide-legacy.c (v2)

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* Move legacy ISA/VLB ports handling from ide-probe.c to ide-legacy.c.

* Add CONFIG_IDE_LEGACY config option to be selected by host drivers
  needing ide-legacy.c.

v2:
Fix CONFIG_IDE_LEGACY not being defined in Kconfig.
(from Takashi Iwai <tiwai@suse.de>)

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-12-29 20:27:37 +01:00
parent e2984c628c
commit 7f92b11c1c
4 changed files with 67 additions and 56 deletions
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8
drivers/ide/Kconfig
View File

@ -62,6 +62,9 @@ config IDE_TIMINGS
config IDE_ATAPI
bool
config IDE_LEGACY
bool
config BLK_DEV_IDE_SATA
bool "Support for SATA (deprecated; conflicts with libata SATA driver)"
default n
@ -856,6 +859,7 @@ config BLK_DEV_4DRIVES
config BLK_DEV_ALI14XX
tristate "ALI M14xx support"
select IDE_TIMINGS
select IDE_LEGACY
help
This driver is enabled at runtime using the "ali14xx.probe" kernel
boot parameter. It enables support for the secondary IDE interface
@ -866,6 +870,7 @@ config BLK_DEV_ALI14XX
config BLK_DEV_DTC2278
tristate "DTC-2278 support"
select IDE_LEGACY
help
This driver is enabled at runtime using the "dtc2278.probe" kernel
boot parameter. It enables support for the secondary IDE interface
@ -876,6 +881,7 @@ config BLK_DEV_DTC2278
config BLK_DEV_HT6560B
tristate "Holtek HT6560B support"
select IDE_TIMINGS
select IDE_LEGACY
help
This driver is enabled at runtime using the "ht6560b.probe" kernel
boot parameter. It enables support for the secondary IDE interface
@ -886,6 +892,7 @@ config BLK_DEV_HT6560B
config BLK_DEV_QD65XX
tristate "QDI QD65xx support"
select IDE_TIMINGS
select IDE_LEGACY
help
This driver is enabled at runtime using the "qd65xx.probe" kernel
boot parameter. It permits faster I/O speeds to be set. See the
@ -894,6 +901,7 @@ config BLK_DEV_QD65XX
config BLK_DEV_UMC8672
tristate "UMC-8672 support"
select IDE_LEGACY
help
This driver is enabled at runtime using the "umc8672.probe" kernel
boot parameter. It enables support for the secondary IDE interface

1
drivers/ide/Makefile
View File

@ -15,6 +15,7 @@ ide-core-$(CONFIG_BLK_DEV_IDEDMA) += ide-dma.o
ide-core-$(CONFIG_BLK_DEV_IDEDMA_SFF) += ide-dma-sff.o
ide-core-$(CONFIG_IDE_PROC_FS) += ide-proc.o
ide-core-$(CONFIG_BLK_DEV_IDEACPI) += ide-acpi.o
ide-core-$(CONFIG_IDE_LEGACY) += ide-legacy.o
obj-$(CONFIG_IDE) += ide-core.o

58
drivers/ide/ide-legacy.c Normal file
View File

@ -0,0 +1,58 @@
#include <linux/kernel.h>
#include <linux/ide.h>
static void ide_legacy_init_one(hw_regs_t **hws, hw_regs_t *hw,
u8 port_no, const struct ide_port_info *d,
unsigned long config)
{
unsigned long base, ctl;
int irq;
if (port_no == 0) {
base = 0x1f0;
ctl = 0x3f6;
irq = 14;
} else {
base = 0x170;
ctl = 0x376;
irq = 15;
}
if (!request_region(base, 8, d->name)) {
printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
d->name, base, base + 7);
return;
}
if (!request_region(ctl, 1, d->name)) {
printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
d->name, ctl);
release_region(base, 8);
return;
}
ide_std_init_ports(hw, base, ctl);
hw->irq = irq;
hw->chipset = d->chipset;
hw->config = config;
hws[port_no] = hw;
}
int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config)
{
hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL };
memset(&hw, 0, sizeof(hw));
if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0)
ide_legacy_init_one(hws, &hw[0], 0, d, config);
ide_legacy_init_one(hws, &hw[1], 1, d, config);
if (hws[0] == NULL && hws[1] == NULL &&
(d->host_flags & IDE_HFLAG_SINGLE))
return -ENOENT;
return ide_host_add(d, hws, NULL);
}
EXPORT_SYMBOL_GPL(ide_legacy_device_add);

56
drivers/ide/ide-probe.c
View File

@ -1755,59 +1755,3 @@ void ide_port_scan(ide_hwif_t *hwif)
ide_proc_port_register_devices(hwif);
}
EXPORT_SYMBOL_GPL(ide_port_scan);
static void ide_legacy_init_one(hw_regs_t **hws, hw_regs_t *hw,
u8 port_no, const struct ide_port_info *d,
unsigned long config)
{
unsigned long base, ctl;
int irq;
if (port_no == 0) {
base = 0x1f0;
ctl = 0x3f6;
irq = 14;
} else {
base = 0x170;
ctl = 0x376;
irq = 15;
}
if (!request_region(base, 8, d->name)) {
printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
d->name, base, base + 7);
return;
}
if (!request_region(ctl, 1, d->name)) {
printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
d->name, ctl);
release_region(base, 8);
return;
}
ide_std_init_ports(hw, base, ctl);
hw->irq = irq;
hw->chipset = d->chipset;
hw->config = config;
hws[port_no] = hw;
}
int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config)
{
hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL };
memset(&hw, 0, sizeof(hw));
if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0)
ide_legacy_init_one(hws, &hw[0], 0, d, config);
ide_legacy_init_one(hws, &hw[1], 1, d, config);
if (hws[0] == NULL && hws[1] == NULL &&
(d->host_flags & IDE_HFLAG_SINGLE))
return -ENOENT;
return ide_host_add(d, hws, NULL);
}
EXPORT_SYMBOL_GPL(ide_legacy_device_add);