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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       4

#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_BLK_DEV_IDEPCI

        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 /* CONFIG_BLK_DEV_IDEPCI */

}

#include <asm-generic/ide_iops.h>

#endif /* __KERNEL__ */

#endif /* __ASMalpha_IDE_H */