include/asm-ppc/ide.h

   1 /*
   2  *  linux/include/asm-ppc/ide.h
   3  *
   4  *  Copyright (C) 1994-1996 Linus Torvalds & authors */
   5
   6 /*
   7  *  This file contains the ppc architecture specific IDE code.
   8  */
   9
  10 #ifndef __ASMPPC_IDE_H
  11 #define __ASMPPC_IDE_H
  12
  13 #ifdef __KERNEL__
  14
  15 #include <linux/sched.h>
  16 #include <asm/mpc8xx.h>
  17
  18 #ifndef MAX_HWIFS
  19 #define MAX_HWIFS       8
  20 #endif
  21
  22 #include <linux/config.h>
  23 #include <linux/hdreg.h>
  24 #include <linux/ioport.h>
  25 #include <asm/io.h>
  26
  27 extern void __ide_mm_insw(void __iomem *port, void *addr, u32 count);
  28 extern void __ide_mm_outsw(void __iomem *port, void *addr, u32 count);
  29 extern void __ide_mm_insl(void __iomem *port, void *addr, u32 count);
  30 extern void __ide_mm_outsl(void __iomem *port, void *addr, u32 count);
  31
  32 struct ide_machdep_calls {
  33         int         (*default_irq)(unsigned long base);
  34         unsigned long (*default_io_base)(int index);
  35         void        (*ide_init_hwif)(hw_regs_t *hw,
  36                                      unsigned long data_port,
  37                                      unsigned long ctrl_port,
  38                                      int *irq);
  39 };
  40
  41 extern struct ide_machdep_calls ppc_ide_md;
  42
  43 #undef  SUPPORT_SLOW_DATA_PORTS
  44 #define SUPPORT_SLOW_DATA_PORTS 0
  45
  46 #define IDE_ARCH_OBSOLETE_DEFAULTS
  47
  48 static __inline__ int ide_default_irq(unsigned long base)
  49 {
  50         if (ppc_ide_md.default_irq)
  51                 return ppc_ide_md.default_irq(base);
  52         return 0;
  53 }
  54
  55 static __inline__ unsigned long ide_default_io_base(int index)
  56 {
  57         if (ppc_ide_md.default_io_base)
  58                 return ppc_ide_md.default_io_base(index);
  59         return 0;
  60 }
  61
  62 #define IDE_ARCH_OBSOLETE_INIT
  63 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
  64
  65 #ifdef CONFIG_PCI
  66 #define ide_init_default_irq(base)      (0)
  67 #else
  68 #define ide_init_default_irq(base)      ide_default_irq(base)
  69 #endif
  70
  71 #if (defined CONFIG_APUS || defined CONFIG_BLK_DEV_MPC8xx_IDE )
  72 #define IDE_ARCH_ACK_INTR  1
  73 #define ide_ack_intr(hwif) (hwif->hw.ack_intr ? hwif->hw.ack_intr(hwif) : 1)
  74 #endif
  75
  76 #endif /* __KERNEL__ */
  77
  78 #endif /* __ASMPPC_IDE_H */