blob: 3fdc79f06d501a44cfe60045588f7c072968cf4f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* 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 : "%d0"); \
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 : "%d0"); \
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 : "%d0"); \
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 : "%d0"); \
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 : "%d0"); \
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 : "%d0"); \
129 __bsc_return(type,__res); \
130}
131
132#endif /* __BOOTSTD_H__ */