summaryrefslogtreecommitdiffstats
path: root/include/asm-m68knommu/bootstd.h
blob: bdc1a4ac4fe956ebdfdfe12746c3a0932a844214 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/* bootstd.h:  Bootloader system call interface
 *
 * (c) 1999, Rt-Control, Inc.
 */

#ifndef __BOOTSTD_H__
#define __BOOTSTD_H__

#define NR_BSC 21            /* last used bootloader system call */

#define __BN_reset        0  /* reset and start the bootloader */
#define __BN_test         1  /* tests the system call interface */
#define __BN_exec         2  /* executes a bootloader image */
#define __BN_exit         3  /* terminates a bootloader image */
#define __BN_program      4  /* program FLASH from a chain */
#define __BN_erase        5  /* erase sector(s) of FLASH */
#define __BN_open         6
#define __BN_write        7
#define __BN_read         8
#define __BN_close        9
#define __BN_mmap         10 /* map a file descriptor into memory */
#define __BN_munmap       11 /* remove a file to memory mapping */
#define __BN_gethwaddr    12 /* get the hardware address of my interfaces */
#define __BN_getserialnum 13 /* get the serial number of this board */
#define __BN_getbenv      14 /* get a bootloader envvar */
#define __BN_setbenv      15 /* get a bootloader envvar */
#define __BN_setpmask     16 /* set the protection mask */
#define __BN_readenv      17 /* read environment variables */
#define __BN_flash_chattr_range		18
#define __BN_flash_erase_range		19
#define __BN_flash_write_range		20

/* Calling conventions compatible to (uC)linux/68k
 * We use simmilar macros to call into the bootloader as for uClinux
 */

#define __bsc_return(type, res) \
do { \
   if ((unsigned long)(res) >= (unsigned long)(-64)) { \
      /* let errno be a function, preserve res in %d0 */ \
      int __err = -(res); \
      errno = __err; \
      res = -1; \
   } \
   return (type)(res); \
} while (0)

#define _bsc0(type,name) \
type name(void) \
{ \
   register long __res __asm__ ("%d0") = __BN_##name; \
   __asm__ __volatile__ ("trap #2" \
                         : "=g" (__res) \
                         : "0" (__res) \
                         ); \
   __bsc_return(type,__res); \
}

#define _bsc1(type,name,atype,a) \
type name(atype a) \
{ \
   register long __res __asm__ ("%d0") = __BN_##name; \
   register long __a __asm__ ("%d1") = (long)a; \
   __asm__ __volatile__ ("trap #2" \
                         : "=g" (__res) \
                         : "0" (__res), "d" (__a) \
                         ); \
   __bsc_return(type,__res); \
}

#define _bsc2(type,name,atype,a,btype,b) \
type name(atype a, btype b) \
{ \
   register long __res __asm__ ("%d0") = __BN_##name; \
   register long __a __asm__ ("%d1") = (long)a; \
   register long __b __asm__ ("%d2") = (long)b; \
   __asm__ __volatile__ ("trap #2" \
                         : "=g" (__res) \
                         : "0" (__res), "d" (__a), "d" (__b) \
                         ); \
   __bsc_return(type,__res); \
}

#define _bsc3(type,name,atype,a,btype,b,ctype,c) \
type name(atype a, btype b, ctype c) \
{ \
   register long __res __asm__ ("%d0") = __BN_##name; \
   register long __a __asm__ ("%d1") = (long)a; \
   register long __b __asm__ ("%d2") = (long)b; \
   register long __c __asm__ ("%d3") = (long)c; \
   __asm__ __volatile__ ("trap #2" \
                         : "=g" (__res) \
                         : "0" (__res), "d" (__a), "d" (__b), \
                           "d" (__c) \
                         ); \
   __bsc_return(type,__res); \
}

#define _bsc4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
type name(atype a, btype b, ctype c, dtype d) \
{ \
   register long __res __asm__ ("%d0") = __BN_##name; \
   register long __a __asm__ ("%d1") = (long)a; \
   register long __b __asm__ ("%d2") = (long)b; \
   register long __c __asm__ ("%d3") = (long)c; \
   register long __d __asm__ ("%d4") = (long)d; \
   __asm__ __volatile__ ("trap #2" \
                         : "=g" (__res) \
                         : "0" (__res), "d" (__a), "d" (__b), \
                           "d" (__c), "d" (__d) \
                         ); \
   __bsc_return(type,__res); \
}

#define _bsc5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \
type name(atype a, btype b, ctype c, dtype d, etype e) \
{ \
   register long __res __asm__ ("%d0") = __BN_##name; \
   register long __a __asm__ ("%d1") = (long)a; \
   register long __b __asm__ ("%d2") = (long)b; \
   register long __c __asm__ ("%d3") = (long)c; \
   register long __d __asm__ ("%d4") = (long)d; \
   register long __e __asm__ ("%d5") = (long)e; \
   __asm__ __volatile__ ("trap #2" \
                         : "=g" (__res) \
                         : "0" (__res), "d" (__a), "d" (__b), \
                           "d" (__c), "d" (__d), "d" (__e) \
                         ); \
   __bsc_return(type,__res); \
}

#endif /* __BOOTSTD_H__ */