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) \ 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