6f904d0152
Add ide_host_add() helper which does ide_host_alloc()+ide_host_register(), then convert ide_setup_pci_device[s](), ide_legacy_device_add() and some host drivers to use it. While at it: * Fix ide_setup_pci_device[s](), ide_arm.c, gayle.c, ide-4drives.c, macide.c, q40ide.c, cmd640.c and cs5520.c to return correct error value. * -ENOENT -> -ENOMEM in rapide.c, ide-h8300.c, ide-generic.c, au1xxx-ide.c and pmac.c * -ENODEV -> -ENOMEM in palm_bk3710.c, ide_platform.c and delkin_cb.c * -1 -> -ENOMEM in ide-pnp.c Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/ide.h>
|
|
|
|
#define DRV_NAME "ide-4drives"
|
|
|
|
static int probe_4drives;
|
|
|
|
module_param_named(probe, probe_4drives, bool, 0);
|
|
MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port");
|
|
|
|
static void ide_4drives_init_dev(ide_drive_t *drive)
|
|
{
|
|
if (drive->hwif->channel)
|
|
drive->select.all ^= 0x20;
|
|
}
|
|
|
|
static const struct ide_port_ops ide_4drives_port_ops = {
|
|
.init_dev = ide_4drives_init_dev,
|
|
};
|
|
|
|
static const struct ide_port_info ide_4drives_port_info = {
|
|
.port_ops = &ide_4drives_port_ops,
|
|
.host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA,
|
|
};
|
|
|
|
static int __init ide_4drives_init(void)
|
|
{
|
|
unsigned long base = 0x1f0, ctl = 0x3f6;
|
|
hw_regs_t hw, *hws[] = { &hw, &hw, NULL, NULL };
|
|
|
|
if (probe_4drives == 0)
|
|
return -ENODEV;
|
|
|
|
if (!request_region(base, 8, DRV_NAME)) {
|
|
printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
|
|
DRV_NAME, base, base + 7);
|
|
return -EBUSY;
|
|
}
|
|
|
|
if (!request_region(ctl, 1, DRV_NAME)) {
|
|
printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
|
|
DRV_NAME, ctl);
|
|
release_region(base, 8);
|
|
return -EBUSY;
|
|
}
|
|
|
|
memset(&hw, 0, sizeof(hw));
|
|
|
|
ide_std_init_ports(&hw, base, ctl);
|
|
hw.irq = 14;
|
|
hw.chipset = ide_4drives;
|
|
|
|
return ide_host_add(&ide_4drives_port_info, hws, NULL);
|
|
}
|
|
|
|
module_init(ide_4drives_init);
|
|
|
|
MODULE_AUTHOR("Bartlomiej Zolnierkiewicz");
|
|
MODULE_DESCRIPTION("generic IDE chipset with 4 drives/port support");
|
|
MODULE_LICENSE("GPL");
|