include/asm-sh/ide.h

   1 /*
   2  *  linux/include/asm-sh/ide.h
   3  *
   4  *  Copyright (C) 1994-1996  Linus Torvalds & authors
   5  */
   6
   7 /*
   8  *  This file contains the i386 architecture specific IDE code.
   9  *  In future, SuperH code.
  10  */
  11
  12 #ifndef __ASM_SH_IDE_H
  13 #define __ASM_SH_IDE_H
  14
  15 #ifdef __KERNEL__
  16
  17 #include <linux/config.h>
  18 #include <asm/machvec.h>
  19
  20 #ifndef MAX_HWIFS
  21 /* Should never have less than 2, ide-pci.c(ide_match_hwif) requires it */
  22 #define MAX_HWIFS       2
  23 #endif
  24
  25 static __inline__ int ide_default_irq_hp600(ide_ioreg_t base)
  26 {
  27         switch (base) {
  28                 case 0x01f0: return 93;
  29                 case 0x0170: return 94;
  30                 default:
  31                         return 0;
  32         }
  33 }
  34
  35 static __inline__ int ide_default_irq(ide_ioreg_t base)
  36 {
  37         if (MACH_HP600) {
  38                 return ide_default_irq_hp600(base);
  39         }
  40         switch (base) {
  41                 case 0x01f0: return 14;
  42                 case 0x0170: return 15;
  43                 default:
  44                         return 0;
  45         }
  46 }
  47
  48 static __inline__ ide_ioreg_t ide_default_io_base_hp600(int index)
  49 {
  50         switch (index) {
  51                 case 0:
  52                         return 0x01f0;
  53                 case 1:
  54                         return 0x0170;
  55                 default:
  56                         return 0;
  57         }
  58 }
  59
  60 static __inline__ ide_ioreg_t ide_default_io_base(int index)
  61 {
  62         if (MACH_HP600) {
  63                 return ide_default_io_base_hp600(index);
  64         }
  65         switch (index) {
  66                 case 0:
  67                         return 0x1f0;
  68                 case 1:
  69                         return 0x170;
  70                 default:
  71                         return 0;
  72         }
  73 }
  74
  75 static __inline__ void ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq)
  76 {
  77         ide_ioreg_t reg = data_port;
  78         int i;
  79
  80         for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
  81                 hw->io_ports[i] = reg;
  82                 reg += 1;
  83         }
  84         if (ctrl_port) {
  85                 hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
  86         } else {
  87                 hw->io_ports[IDE_CONTROL_OFFSET] = hw->io_ports[IDE_DATA_OFFSET] + 0x206;
  88         }
  89         if (irq != NULL)
  90                 *irq = 0;
  91         hw->io_ports[IDE_IRQ_OFFSET] = 0;
  92 }
  93
  94 static __inline__ void ide_init_default_hwifs(void)
  95 {
  96 #ifndef CONFIG_PCI
  97         hw_regs_t hw;
  98         int index;
  99
 100         for(index = 0; index < MAX_HWIFS; index++) {
 101                 memset(&hw, 0, sizeof hw);
 102                 ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
 103                 hw.irq = ide_default_irq(ide_default_io_base(index));
 104                 ide_register_hw(&hw, NULL);
 105         }
 106 #endif /* CONFIG_PCI */
 107 }
 108
 109 #include <asm-generic/ide_iops.h>
 110
 111 #endif /* __KERNEL__ */
 112
 113 #endif /* __ASM_SH_IDE_H */