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133 lines
4.6 KiB
133 lines
4.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* 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 similar 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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); \ |
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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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); \ |
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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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); \ |
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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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); \ |
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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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); \ |
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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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); \ |
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__bsc_return(type,__res); \ |
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} |
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#endif /* __BOOTSTD_H__ */
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