133 строки
4.6 KiB
C
133 строки
4.6 KiB
C
/* bootstd.h: Bootloader system call interface
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*
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* (c) 1999, Rt-Control, Inc.
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*/
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#ifndef __BOOTSTD_H__
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#define __BOOTSTD_H__
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#define NR_BSC 21 /* last used bootloader system call */
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#define __BN_reset 0 /* reset and start the bootloader */
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#define __BN_test 1 /* tests the system call interface */
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#define __BN_exec 2 /* executes a bootloader image */
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#define __BN_exit 3 /* terminates a bootloader image */
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#define __BN_program 4 /* program FLASH from a chain */
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#define __BN_erase 5 /* erase sector(s) of FLASH */
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#define __BN_open 6
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#define __BN_write 7
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#define __BN_read 8
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#define __BN_close 9
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#define __BN_mmap 10 /* map a file descriptor into memory */
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#define __BN_munmap 11 /* remove a file to memory mapping */
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#define __BN_gethwaddr 12 /* get the hardware address of my interfaces */
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#define __BN_getserialnum 13 /* get the serial number of this board */
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#define __BN_getbenv 14 /* get a bootloader envvar */
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#define __BN_setbenv 15 /* get a bootloader envvar */
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#define __BN_setpmask 16 /* set the protection mask */
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#define __BN_readenv 17 /* read environment variables */
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#define __BN_flash_chattr_range 18
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#define __BN_flash_erase_range 19
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#define __BN_flash_write_range 20
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/* Calling conventions compatible to (uC)linux/68k
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* We use simmilar macros to call into the bootloader as for uClinux
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*/
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#define __bsc_return(type, res) \
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do { \
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if ((unsigned long)(res) >= (unsigned long)(-64)) { \
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/* let errno be a function, preserve res in %d0 */ \
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int __err = -(res); \
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errno = __err; \
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res = -1; \
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} \
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return (type)(res); \
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} while (0)
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#define _bsc0(type,name) \
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type name(void) \
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{ \
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register long __res __asm__ ("%d0") = __BN_##name; \
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__asm__ __volatile__ ("trap #2" \
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: "=g" (__res) \
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: "0" (__res) \
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: "%d0"); \
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__bsc_return(type,__res); \
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}
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#define _bsc1(type,name,atype,a) \
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type name(atype a) \
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{ \
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register long __res __asm__ ("%d0") = __BN_##name; \
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register long __a __asm__ ("%d1") = (long)a; \
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__asm__ __volatile__ ("trap #2" \
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: "=g" (__res) \
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: "0" (__res), "d" (__a) \
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: "%d0"); \
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__bsc_return(type,__res); \
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}
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#define _bsc2(type,name,atype,a,btype,b) \
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type name(atype a, btype b) \
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{ \
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register long __res __asm__ ("%d0") = __BN_##name; \
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register long __a __asm__ ("%d1") = (long)a; \
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register long __b __asm__ ("%d2") = (long)b; \
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__asm__ __volatile__ ("trap #2" \
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: "=g" (__res) \
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: "0" (__res), "d" (__a), "d" (__b) \
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: "%d0"); \
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__bsc_return(type,__res); \
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}
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#define _bsc3(type,name,atype,a,btype,b,ctype,c) \
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type name(atype a, btype b, ctype c) \
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{ \
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register long __res __asm__ ("%d0") = __BN_##name; \
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register long __a __asm__ ("%d1") = (long)a; \
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register long __b __asm__ ("%d2") = (long)b; \
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register long __c __asm__ ("%d3") = (long)c; \
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__asm__ __volatile__ ("trap #2" \
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: "=g" (__res) \
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: "0" (__res), "d" (__a), "d" (__b), \
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"d" (__c) \
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: "%d0"); \
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__bsc_return(type,__res); \
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}
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#define _bsc4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
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type name(atype a, btype b, ctype c, dtype d) \
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{ \
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register long __res __asm__ ("%d0") = __BN_##name; \
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register long __a __asm__ ("%d1") = (long)a; \
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register long __b __asm__ ("%d2") = (long)b; \
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register long __c __asm__ ("%d3") = (long)c; \
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register long __d __asm__ ("%d4") = (long)d; \
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__asm__ __volatile__ ("trap #2" \
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: "=g" (__res) \
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: "0" (__res), "d" (__a), "d" (__b), \
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"d" (__c), "d" (__d) \
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: "%d0"); \
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__bsc_return(type,__res); \
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}
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#define _bsc5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \
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type name(atype a, btype b, ctype c, dtype d, etype e) \
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{ \
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register long __res __asm__ ("%d0") = __BN_##name; \
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register long __a __asm__ ("%d1") = (long)a; \
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register long __b __asm__ ("%d2") = (long)b; \
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register long __c __asm__ ("%d3") = (long)c; \
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register long __d __asm__ ("%d4") = (long)d; \
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register long __e __asm__ ("%d5") = (long)e; \
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__asm__ __volatile__ ("trap #2" \
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: "=g" (__res) \
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: "0" (__res), "d" (__a), "d" (__b), \
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"d" (__c), "d" (__d), "d" (__e) \
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: "%d0"); \
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__bsc_return(type,__res); \
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}
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#endif /* __BOOTSTD_H__ */
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