#include <linux/module.h>
#include <linux/ide.h>
-int probe_4drives = 0;
+#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)
{
ide_hwif_t *hwif, *mate;
- u8 idx[4] = { 0, 1, 0xff, 0xff };
+ unsigned long base = 0x1f0, ctl = 0x3f6;
+ u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
hw_regs_t hw;
if (probe_4drives == 0)
return -ENODEV;
- hwif = &ide_hwifs[0];
- mate = &ide_hwifs[1];
+ 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, 0x1f0, 0x3f6);
+ ide_std_init_ports(&hw, base, ctl);
hw.irq = 14;
hw.chipset = ide_4drives;
- ide_init_port_hw(hwif, &hw);
- ide_init_port_hw(mate, &hw);
-
- mate->drives[0].select.all ^= 0x20;
- mate->drives[1].select.all ^= 0x20;
-
- hwif->mate = mate;
- mate->mate = hwif;
+ hwif = ide_find_port();
+ if (hwif) {
+ ide_init_port_hw(hwif, &hw);
+ idx[0] = hwif->index;
+ }
- hwif->serialized = mate->serialized = 1;
+ mate = ide_find_port();
+ if (mate) {
+ ide_init_port_hw(mate, &hw);
+ idx[1] = mate->index;
+ }
- ide_device_add(idx, NULL);
+ ide_device_add(idx, &ide_4drives_port_info);
return 0;
}