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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* bootstd.h:  Bootloader system call interface
   3 *
   4 * (c) 1999, Rt-Control, Inc.
   5 */
   6
   7#ifndef __BOOTSTD_H__
   8#define __BOOTSTD_H__
   9
  10#define NR_BSC 21            /* last used bootloader system call */
  11
  12#define __BN_reset        0  /* reset and start the bootloader */
  13#define __BN_test         1  /* tests the system call interface */
  14#define __BN_exec         2  /* executes a bootloader image */
  15#define __BN_exit         3  /* terminates a bootloader image */
  16#define __BN_program      4  /* program FLASH from a chain */
  17#define __BN_erase        5  /* erase sector(s) of FLASH */
  18#define __BN_open         6
  19#define __BN_write        7
  20#define __BN_read         8
  21#define __BN_close        9
  22#define __BN_mmap         10 /* map a file descriptor into memory */
  23#define __BN_munmap       11 /* remove a file to memory mapping */
  24#define __BN_gethwaddr    12 /* get the hardware address of my interfaces */
  25#define __BN_getserialnum 13 /* get the serial number of this board */
  26#define __BN_getbenv      14 /* get a bootloader envvar */
  27#define __BN_setbenv      15 /* get a bootloader envvar */
  28#define __BN_setpmask     16 /* set the protection mask */
  29#define __BN_readenv      17 /* read environment variables */
  30#define __BN_flash_chattr_range         18
  31#define __BN_flash_erase_range          19
  32#define __BN_flash_write_range          20
  33
  34/* Calling conventions compatible to (uC)linux/68k
  35 * We use similar macros to call into the bootloader as for uClinux
  36 */
  37
  38#define __bsc_return(type, res) \
  39do { \
  40   if ((unsigned long)(res) >= (unsigned long)(-64)) { \
  41      /* let errno be a function, preserve res in %d0 */ \
  42      int __err = -(res); \
  43      errno = __err; \
  44      res = -1; \
  45   } \
  46   return (type)(res); \
  47} while (0)
  48
  49#define _bsc0(type,name) \
  50type name(void) \
  51{ \
  52   register long __res __asm__ ("%d0") = __BN_##name; \
  53   __asm__ __volatile__ ("trap #2" \
  54                         : "=g" (__res) \
  55                         : "0" (__res) \
  56                         ); \
  57   __bsc_return(type,__res); \
  58}
  59
  60#define _bsc1(type,name,atype,a) \
  61type name(atype a) \
  62{ \
  63   register long __res __asm__ ("%d0") = __BN_##name; \
  64   register long __a __asm__ ("%d1") = (long)a; \
  65   __asm__ __volatile__ ("trap #2" \
  66                         : "=g" (__res) \
  67                         : "0" (__res), "d" (__a) \
  68                         ); \
  69   __bsc_return(type,__res); \
  70}
  71
  72#define _bsc2(type,name,atype,a,btype,b) \
  73type name(atype a, btype b) \
  74{ \
  75   register long __res __asm__ ("%d0") = __BN_##name; \
  76   register long __a __asm__ ("%d1") = (long)a; \
  77   register long __b __asm__ ("%d2") = (long)b; \
  78   __asm__ __volatile__ ("trap #2" \
  79                         : "=g" (__res) \
  80                         : "0" (__res), "d" (__a), "d" (__b) \
  81                         ); \
  82   __bsc_return(type,__res); \
  83}
  84
  85#define _bsc3(type,name,atype,a,btype,b,ctype,c) \
  86type name(atype a, btype b, ctype c) \
  87{ \
  88   register long __res __asm__ ("%d0") = __BN_##name; \
  89   register long __a __asm__ ("%d1") = (long)a; \
  90   register long __b __asm__ ("%d2") = (long)b; \
  91   register long __c __asm__ ("%d3") = (long)c; \
  92   __asm__ __volatile__ ("trap #2" \
  93                         : "=g" (__res) \
  94                         : "0" (__res), "d" (__a), "d" (__b), \
  95                           "d" (__c) \
  96                         ); \
  97   __bsc_return(type,__res); \
  98}
  99
 100#define _bsc4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
 101type name(atype a, btype b, ctype c, dtype d) \
 102{ \
 103   register long __res __asm__ ("%d0") = __BN_##name; \
 104   register long __a __asm__ ("%d1") = (long)a; \
 105   register long __b __asm__ ("%d2") = (long)b; \
 106   register long __c __asm__ ("%d3") = (long)c; \
 107   register long __d __asm__ ("%d4") = (long)d; \
 108   __asm__ __volatile__ ("trap #2" \
 109                         : "=g" (__res) \
 110                         : "0" (__res), "d" (__a), "d" (__b), \
 111                           "d" (__c), "d" (__d) \
 112                         ); \
 113   __bsc_return(type,__res); \
 114}
 115
 116#define _bsc5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \
 117type name(atype a, btype b, ctype c, dtype d, etype e) \
 118{ \
 119   register long __res __asm__ ("%d0") = __BN_##name; \
 120   register long __a __asm__ ("%d1") = (long)a; \
 121   register long __b __asm__ ("%d2") = (long)b; \
 122   register long __c __asm__ ("%d3") = (long)c; \
 123   register long __d __asm__ ("%d4") = (long)d; \
 124   register long __e __asm__ ("%d5") = (long)e; \
 125   __asm__ __volatile__ ("trap #2" \
 126                         : "=g" (__res) \
 127                         : "0" (__res), "d" (__a), "d" (__b), \
 128                           "d" (__c), "d" (__d), "d" (__e) \
 129                         ); \
 130   __bsc_return(type,__res); \
 131}
 132
 133#endif /* __BOOTSTD_H__ */
 134