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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
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 | |
25985edc | 35 | * We use similar macros to call into the bootloader as for uClinux |
1da177e4 LT |
36 | */ |
37 | ||
38 | #define __bsc_return(type, res) \ | |
39 | do { \ | |
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) \ | |
50 | type name(void) \ | |
51 | { \ | |
52 | register long __res __asm__ ("%d0") = __BN_##name; \ | |
53 | __asm__ __volatile__ ("trap #2" \ | |
54 | : "=g" (__res) \ | |
55 | : "0" (__res) \ | |
0aee77b2 | 56 | ); \ |
1da177e4 LT |
57 | __bsc_return(type,__res); \ |
58 | } | |
59 | ||
60 | #define _bsc1(type,name,atype,a) \ | |
61 | type 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) \ | |
0aee77b2 | 68 | ); \ |
1da177e4 LT |
69 | __bsc_return(type,__res); \ |
70 | } | |
71 | ||
72 | #define _bsc2(type,name,atype,a,btype,b) \ | |
73 | type 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) \ | |
0aee77b2 | 81 | ); \ |
1da177e4 LT |
82 | __bsc_return(type,__res); \ |
83 | } | |
84 | ||
85 | #define _bsc3(type,name,atype,a,btype,b,ctype,c) \ | |
86 | type 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) \ | |
0aee77b2 | 96 | ); \ |
1da177e4 LT |
97 | __bsc_return(type,__res); \ |
98 | } | |
99 | ||
100 | #define _bsc4(type,name,atype,a,btype,b,ctype,c,dtype,d) \ | |
101 | type 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) \ | |
0aee77b2 | 112 | ); \ |
1da177e4 LT |
113 | __bsc_return(type,__res); \ |
114 | } | |
115 | ||
116 | #define _bsc5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \ | |
117 | type 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) \ | |
0aee77b2 | 129 | ); \ |
1da177e4 LT |
130 | __bsc_return(type,__res); \ |
131 | } | |
132 | ||
133 | #endif /* __BOOTSTD_H__ */ |