mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
7f92b11c1c
* 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>
59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
#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);
|