1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * arch/h8300/boot/compressed/misc.c
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * This is a collection of several routines from gzip-1.0.3
6*4882a593Smuzhiyun * adapted for Linux.
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
9*4882a593Smuzhiyun *
10*4882a593Smuzhiyun * Adapted for h8300 by Yoshinori Sato 2006
11*4882a593Smuzhiyun */
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #include <linux/uaccess.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun /*
16*4882a593Smuzhiyun * gzip declarations
17*4882a593Smuzhiyun */
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #define OF(args) args
20*4882a593Smuzhiyun #define STATIC static
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #undef memset
23*4882a593Smuzhiyun #undef memcpy
24*4882a593Smuzhiyun #define memzero(s, n) memset((s), (0), (n))
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun extern int _end;
27*4882a593Smuzhiyun static unsigned long free_mem_ptr;
28*4882a593Smuzhiyun static unsigned long free_mem_end_ptr;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun extern char input_data[];
31*4882a593Smuzhiyun extern int input_len;
32*4882a593Smuzhiyun extern char output[];
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun #define HEAP_SIZE 0x10000
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun #ifdef CONFIG_KERNEL_GZIP
37*4882a593Smuzhiyun #include "../../../../lib/decompress_inflate.c"
38*4882a593Smuzhiyun #endif
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun #ifdef CONFIG_KERNEL_LZO
41*4882a593Smuzhiyun #include "../../../../lib/decompress_unlzo.c"
42*4882a593Smuzhiyun #endif
43*4882a593Smuzhiyun
memset(void * s,int c,size_t n)44*4882a593Smuzhiyun void *memset(void *s, int c, size_t n)
45*4882a593Smuzhiyun {
46*4882a593Smuzhiyun int i;
47*4882a593Smuzhiyun char *ss = (char *)s;
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun for (i = 0; i < n; i++)
50*4882a593Smuzhiyun ss[i] = c;
51*4882a593Smuzhiyun return s;
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun
memcpy(void * dest,const void * src,size_t n)54*4882a593Smuzhiyun void *memcpy(void *dest, const void *src, size_t n)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun int i;
57*4882a593Smuzhiyun char *d = (char *)dest, *s = (char *)src;
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun for (i = 0; i < n; i++)
60*4882a593Smuzhiyun d[i] = s[i];
61*4882a593Smuzhiyun return dest;
62*4882a593Smuzhiyun }
63*4882a593Smuzhiyun
error(char * x)64*4882a593Smuzhiyun static void error(char *x)
65*4882a593Smuzhiyun {
66*4882a593Smuzhiyun while (1)
67*4882a593Smuzhiyun ; /* Halt */
68*4882a593Smuzhiyun }
69*4882a593Smuzhiyun
decompress_kernel(void)70*4882a593Smuzhiyun void decompress_kernel(void)
71*4882a593Smuzhiyun {
72*4882a593Smuzhiyun free_mem_ptr = (unsigned long)&_end;
73*4882a593Smuzhiyun free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun __decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
76*4882a593Smuzhiyun }
77