include/asm-mips64/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
  11 /*
  12  *  This file contains the MIPS architecture specific IDE code.
  13  */
  14
  15 #ifndef __ASM_IDE_H
  16 #define __ASM_IDE_H
  17
  18 #ifdef __KERNEL__
  19
  20 #include <linux/config.h>
  21 #include <asm/io.h>
  22
  23 #ifndef MAX_HWIFS
  24 # ifdef CONFIG_BLK_DEV_IDEPCI
  25 #define MAX_HWIFS       10
  26 # else
  27 #define MAX_HWIFS       6
  28 # endif
  29 #endif
  30
  31 struct ide_ops {
  32         int (*ide_default_irq)(ide_ioreg_t base);
  33         ide_ioreg_t (*ide_default_io_base)(int index);
  34         void (*ide_init_hwif_ports)(hw_regs_t *hw, ide_ioreg_t data_port,
  35                                     ide_ioreg_t ctrl_port, int *irq);
  36 };
  37
  38 extern struct ide_ops *ide_ops;
  39
  40 static __inline__ int ide_default_irq(ide_ioreg_t base)
  41 {
  42         return ide_ops->ide_default_irq(base);
  43 }
  44
  45 static __inline__ ide_ioreg_t ide_default_io_base(int index)
  46 {
  47         return ide_ops->ide_default_io_base(index);
  48 }
  49
  50 static inline void ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port,
  51                                        ide_ioreg_t ctrl_port, int *irq)
  52 {
  53         ide_ops->ide_init_hwif_ports(hw, data_port, ctrl_port, irq);
  54 }
  55
  56 static __inline__ void ide_init_default_hwifs(void)
  57 {
  58 #ifndef CONFIG_BLK_DEV_IDEPCI
  59         hw_regs_t hw;
  60         int index;
  61
  62         for(index = 0; index < MAX_HWIFS; index++) {
  63                 ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
  64                 hw.irq = ide_default_irq(ide_default_io_base(index));
  65                 ide_register_hw(&hw, NULL);
  66         }
  67 #endif /* CONFIG_BLK_DEV_IDEPCI */
  68 }
  69
  70 #if defined(CONFIG_SWAP_IO_SPACE) && defined(__MIPSEB__)
  71
  72 #ifdef insl
  73 #undef insl
  74 #endif
  75 #ifdef outsl
  76 #undef outsl
  77 #endif
  78 #ifdef insw
  79 #undef insw
  80 #endif
  81 #ifdef outsw
  82 #undef outsw
  83 #endif
  84
  85 #define insw(p,a,c)                                                     \
  86 do {                                                                    \
  87         unsigned short *ptr = (unsigned short *)(a);                    \
  88         unsigned int i = (c);                                           \
  89         while (i--)                                                     \
  90                 *ptr++ = inw(p);                                        \
  91 } while (0)
  92 #define insl(p,a,c)                                                     \
  93 do {                                                                    \
  94         unsigned long *ptr = (unsigned long *)(a);                      \
  95         unsigned int i = (c);                                           \
  96         while (i--)                                                     \
  97                 *ptr++ = inl(p);                                        \
  98 } while (0)
  99 #define outsw(p,a,c)                                                    \
 100 do {                                                                    \
 101         unsigned short *ptr = (unsigned short *)(a);                    \
 102         unsigned int i = (c);                                           \
 103         while (i--)                                                     \
 104                 outw(*ptr++, (p));                                      \
 105 } while (0)
 106 #define outsl(p,a,c) {                                                  \
 107         unsigned long *ptr = (unsigned long *)(a);                      \
 108         unsigned int i = (c);                                           \
 109         while (i--)                                                     \
 110                 outl(*ptr++, (p));                                      \
 111 } while (0)
 112
 113 #endif /* defined(CONFIG_SWAP_IO_SPACE) && defined(__MIPSEB__)  */
 114
 115 #endif /* __KERNEL__ */
 116
 117 #endif /* __ASM_IDE_H */