LXR linux-old/include/asm-mips/ide.h

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * This file contains the MIPS architecture specific IDE code.
   7 *
   8 * Copyright (C) 1994-1996  Linus Torvalds & authors
   9 */
  10#ifndef __ASM_IDE_H
  11#define __ASM_IDE_H
  12
  13#ifdef __KERNEL__
  14
  15#include <linux/config.h>
  16#include <asm/io.h>
  17
  18#ifndef MAX_HWIFS
  19# ifdef CONFIG_BLK_DEV_IDEPCI
  20#define MAX_HWIFS       10
  21# else
  22#define MAX_HWIFS       6
  23# endif
  24#endif
  25
  26struct ide_ops {
  27        int (*ide_default_irq)(ide_ioreg_t base);
  28        ide_ioreg_t (*ide_default_io_base)(int index);
  29        void (*ide_init_hwif_ports)(hw_regs_t *hw, ide_ioreg_t data_port,
  30                                    ide_ioreg_t ctrl_port, int *irq);
  31};
  32
  33extern struct ide_ops *ide_ops;
  34
  35static __inline__ int ide_default_irq(ide_ioreg_t base)
  36{
  37        return ide_ops->ide_default_irq(base);
  38}
  39
  40static __inline__ ide_ioreg_t ide_default_io_base(int index)
  41{
  42        return ide_ops->ide_default_io_base(index);
  43}
  44
  45static inline void ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port,
  46        ide_ioreg_t ctrl_port, int *irq)
  47{
  48        ide_ops->ide_init_hwif_ports(hw, data_port, ctrl_port, irq);
  49}
  50
  51static __inline__ void ide_init_default_hwifs(void)
  52{
  53#ifndef CONFIG_BLK_DEV_IDEPCI
  54        hw_regs_t hw;
  55        int index;
  56
  57        for(index = 0; index < MAX_HWIFS; index++) {
  58                memset(&hw, 0, sizeof hw);
  59                ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
  60                hw.irq = ide_default_irq(ide_default_io_base(index));
  61                ide_register_hw(&hw, NULL);
  62        }
  63#endif /* CONFIG_BLK_DEV_IDEPCI */
  64}
  65
  66#ifdef CONFIG_PCMCIA_SIBYTE
  67#define IDE_ARCH_ACK_INTR
  68#define ide_ack_intr(hwif)      ((hwif)->hw.ack_intr ? (hwif)->hw.ack_intr(hwif) : 1)
  69#endif
  70
  71#include <asm-generic/ide_iops.h>
  72
  73#endif /* __KERNEL__ */
  74
  75#endif /* __ASM_IDE_H */
  76