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 simmilar macros to call into the bootloader as for uClinux
  35  */
  36
  37 #define __bsc_return(type, res) \
  38 do { \
  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) \
  49 type 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) \
  60 type 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) \
  72 type 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) \
  85 type 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) \
 100 type 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) \
 116 type 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__ */