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#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/ide.h>
int probe_4drives = 0;
module_param_named(probe, probe_4drives, bool, 0);
MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port");
static int __init ide_4drives_init(void)
{
ide_hwif_t *hwif, *mate;
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
hw_regs_t hw;
if (probe_4drives == 0)
return -ENODEV;
memset(&hw, 0, sizeof(hw));
ide_std_init_ports(&hw, 0x1f0, 0x3f6);
hw.irq = 14;
hw.chipset = ide_4drives;
hwif = ide_find_port();
if (hwif) {
ide_init_port_hw(hwif, &hw);
idx[0] = hwif->index;
}
mate = ide_find_port();
if (mate) {
ide_init_port_hw(mate, &hw);
mate->drives[0].select.all ^= 0x20;
mate->drives[1].select.all ^= 0x20;
idx[1] = mate->index;
if (hwif) {
hwif->mate = mate;
mate->mate = hwif;
hwif->serialized = mate->serialized = 1;
}
}
ide_device_add(idx, NULL);
return 0;
}
module_init(ide_4drives_init);
MODULE_AUTHOR("Bartlomiej Zolnierkiewicz");
MODULE_DESCRIPTION("generic IDE chipset with 4 drives/port support");
MODULE_LICENSE("GPL");
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