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/*
* linux/include/asm-alpha/ide.h
*
* Copyright (C) 1994-1996 Linus Torvalds & authors
*/
/*
* This file contains the alpha architecture specific IDE code.
*/
#ifndef __ASMalpha_IDE_H
#define __ASMalpha_IDE_H
#ifdef __KERNEL__
#include <linux/config.h>
#ifndef MAX_HWIFS
#define MAX_HWIFS CONFIG_IDE_MAX_HWIFS
#endif
static __inline__ int ide_default_irq(ide_ioreg_t base)
{
switch (base) {
case 0x1f0: return 14;
case 0x170: return 15;
case 0x1e8: return 11;
case 0x168: return 10;
default:
return 0;
}
}
static __inline__ ide_ioreg_t ide_default_io_base(int index)
{
switch (index) {
case 0: return 0x1f0;
case 1: return 0x170;
case 2: return 0x1e8;
case 3: return 0x168;
default:
return 0;
}
}
static __inline__ void ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq)
{
ide_ioreg_t reg = data_port;
int i;
for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
hw->io_ports[i] = reg;
reg += 1;
}
if (ctrl_port) {
hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
} else {
hw->io_ports[IDE_CONTROL_OFFSET] = hw->io_ports[IDE_DATA_OFFSET] + 0x206;
}
if (irq != NULL)
*irq = 0;
hw->io_ports[IDE_IRQ_OFFSET] = 0;
}
/*
* This registers the standard ports for this architecture with the IDE
* driver.
*/
static __inline__ void ide_init_default_hwifs(void)
{
#ifndef CONFIG_PCI
hw_regs_t hw;
int index;
for (index = 0; index < MAX_HWIFS; index++) {
ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
hw.irq = ide_default_irq(ide_default_io_base(index));
ide_register_hw(&hw, NULL);
}
#endif
}
#include <asm-generic/ide_iops.h>
#endif /* __KERNEL__ */
#endif /* __ASMalpha_IDE_H */
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