LXR linux/arch/m68k/include/asm/bootstd.h

   1/* bootstd.h:  Bootloader system call interface
   2 *
   3 * (c) 1999, Rt-Control, Inc.
   4 */
   5
   6#ifndef __BOOTSTD_H__
   7#define __BOOTSTD_H__
   8
   9#define NR_BSC 21            /* last used bootloader system call */
  10
  11#define __BN_reset        0  /* reset and start the bootloader */
  12#define __BN_test         1  /* tests the system call interface */
  13#define __BN_exec         2  /* executes a bootloader image */
  14#define __BN_exit         3  /* terminates a bootloader image */
  15#define __BN_program      4  /* program FLASH from a chain */
  16#define __BN_erase        5  /* erase sector(s) of FLASH */
  17#define __BN_open         6
  18#define __BN_write        7
  19#define __BN_read         8
  20#define __BN_close        9
  21#define __BN_mmap         10 /* map a file descriptor into memory */
  22#define __BN_munmap       11 /* remove a file to memory mapping */
  23#define __BN_gethwaddr    12 /* get the hardware address of my interfaces */
  24#define __BN_getserialnum 13 /* get the serial number of this board */
  25#define __BN_getbenv      14 /* get a bootloader envvar */
  26#define __BN_setbenv      15 /* get a bootloader envvar */
  27#define __BN_setpmask     16 /* set the protection mask */
  28#define __BN_readenv      17 /* read environment variables */
  29#define __BN_flash_chattr_range         18
  30#define __BN_flash_erase_range          19
  31#define __BN_flash_write_range          20
  32
  33/* Calling conventions compatible to (uC)linux/68k
  34 * We use similar macros to call into the bootloader as for uClinux
  35 */
  36
  37#define __bsc_return(type, res) \
  38do { \
  39   if ((unsigned long)(res) >= (unsigned long)(-64)) { \
  40      /* let errno be a function, preserve res in %d0 */ \
  41      int __err = -(res); \
  42      errno = __err; \
  43      res = -1; \
  44   } \
  45   return (type)(res); \
  46} while (0)
  47
  48#define _bsc0(type,name) \
  49type name(void) \
  50{ \
  51   register long __res __asm__ ("%d0") = __BN_##name; \
  52   __asm__ __volatile__ ("trap #2" \
  53                         : "=g" (__res) \
  54                         : "0" (__res) \
  55                         ); \
  56   __bsc_return(type,__res); \
  57}
  58
  59#define _bsc1(type,name,atype,a) \
  60type name(atype a) \
  61{ \
  62   register long __res __asm__ ("%d0") = __BN_##name; \
  63   register long __a __asm__ ("%d1") = (long)a; \
  64   __asm__ __volatile__ ("trap #2" \
  65                         : "=g" (__res) \
  66                         : "0" (__res), "d" (__a) \
  67                         ); \
  68   __bsc_return(type,__res); \
  69}
  70
  71#define _bsc2(type,name,atype,a,btype,b) \
  72type name(atype a, btype b) \
  73{ \
  74   register long __res __asm__ ("%d0") = __BN_##name; \
  75   register long __a __asm__ ("%d1") = (long)a; \
  76   register long __b __asm__ ("%d2") = (long)b; \
  77   __asm__ __volatile__ ("trap #2" \
  78                         : "=g" (__res) \
  79                         : "0" (__res), "d" (__a), "d" (__b) \
  80                         ); \
  81   __bsc_return(type,__res); \
  82}
  83
  84#define _bsc3(type,name,atype,a,btype,b,ctype,c) \
  85type name(atype a, btype b, ctype c) \
  86{ \
  87   register long __res __asm__ ("%d0") = __BN_##name; \
  88   register long __a __asm__ ("%d1") = (long)a; \
  89   register long __b __asm__ ("%d2") = (long)b; \
  90   register long __c __asm__ ("%d3") = (long)c; \
  91   __asm__ __volatile__ ("trap #2" \
  92                         : "=g" (__res) \
  93                         : "0" (__res), "d" (__a), "d" (__b), \
  94                           "d" (__c) \
  95                         ); \
  96   __bsc_return(type,__res); \
  97}
  98
  99#define _bsc4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
 100type name(atype a, btype b, ctype c, dtype d) \
 101{ \
 102   register long __res __asm__ ("%d0") = __BN_##name; \
 103   register long __a __asm__ ("%d1") = (long)a; \
 104   register long __b __asm__ ("%d2") = (long)b; \
 105   register long __c __asm__ ("%d3") = (long)c; \
 106   register long __d __asm__ ("%d4") = (long)d; \
 107   __asm__ __volatile__ ("trap #2" \
 108                         : "=g" (__res) \
 109                         : "0" (__res), "d" (__a), "d" (__b), \
 110                           "d" (__c), "d" (__d) \
 111                         ); \
 112   __bsc_return(type,__res); \
 113}
 114
 115#define _bsc5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \
 116type name(atype a, btype b, ctype c, dtype d, etype e) \
 117{ \
 118   register long __res __asm__ ("%d0") = __BN_##name; \
 119   register long __a __asm__ ("%d1") = (long)a; \
 120   register long __b __asm__ ("%d2") = (long)b; \
 121   register long __c __asm__ ("%d3") = (long)c; \
 122   register long __d __asm__ ("%d4") = (long)d; \
 123   register long __e __asm__ ("%d5") = (long)e; \
 124   __asm__ __volatile__ ("trap #2" \
 125                         : "=g" (__res) \
 126                         : "0" (__res), "d" (__a), "d" (__b), \
 127                           "d" (__c), "d" (__d), "d" (__e) \
 128                         ); \
 129   __bsc_return(type,__res); \
 130}
 131
 132#endif /* __BOOTSTD_H__ */
 133