URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [sound/] [hex2hex.h] - Blame information for rev 1626

Go to most recent revision | Details | Compare with Previous | View Log


/*
 * This file is a part of configure.c
 *
 * hex2hex reads an input file in Intel HEX format and produces
 * an (unsigned char) array which contains the bytes and writes it to the
 * output file using C syntax
 */
 
#define MAX_SIZE (256*1024)
#define ABANDON(why) { \
                fprintf(stderr, "%s: " why "\n", source); \
                return 0; \
                }
 
int loadhex(FILE *inf, unsigned char *buf, char *source)
{
        int l=0, c, i;
 
        while ((c=getc(inf))!=EOF)
        {
                if (c == ':')   /* Sync with beginning of line */
                {
                        int n, check;
                        unsigned char sum;
                        int addr;
                        int linetype;
 
                        if (fscanf(inf, "%02x", &n) != 1)
                           ABANDON("File format error");
                        sum = n;
 
                        if (fscanf(inf, "%04x", &addr) != 1)
                           ABANDON("File format error");
                        sum += addr/256;
                        sum += addr%256;
 
                        if (fscanf(inf, "%02x", &linetype) != 1)
                           ABANDON("File format error");
                        sum += linetype;
 
                        if (linetype != 0)
                           continue;
 
                        for (i=0;i<n;i++)
                        {
                                if (fscanf(inf, "%02x", &c) != 1)
                                   ABANDON("File format error");
                                if (addr >= MAX_SIZE)
                                   ABANDON("File too large");
                                buf[addr++] = c;
                                if (addr > l)
                                   l = addr;
                                sum += c;
                        }
 
                        if (fscanf(inf, "%02x", &check) != 1)
                           ABANDON("File format error");
 
                        sum = ~sum + 1;
                        if (check != sum)
                           ABANDON("Line checksum error");
                }
        }
 
        return l;
}
 
int hex2hex(char *source, char *target, char *varline)
{
        FILE *inf, *outf;
 
        int i,l;
        unsigned char buf[MAX_SIZE];
 
        if ((inf=fopen(source, "r"))==NULL)
        {
                perror(source);
                return 0;
        }
 
        if ((outf=fopen(target, "w"))==NULL)
        {
                perror(target);
                fclose(inf);
                return 0;
        }
 
        l=loadhex(inf, buf, source);
        if (l<=0)
        {
           fclose(inf);
           fclose(outf);
           return l;
        }
 
 
        fprintf(outf, "/*\n *\t Computer generated file. Do not edit.\n */\n");
        fprintf(outf, "static int %s_len = %d;\n", varline, l);
        fprintf(outf, "static unsigned char %s[] = {\n", varline);
 
        for (i=0;i<l;i++)
        {
                if (i) fprintf(outf, ",");
                if (i && !(i % 16)) fprintf(outf, "\n");
                fprintf(outf, "0x%02x", buf[i]);
        }
 
        fprintf(outf, "\n};\n\n");
        fclose(inf);
        fclose(outf);
        return 1;
}

Line No.	Rev	Author	Line
1	1626	jcastillo	`/*`
2			`* This file is a part of configure.c`
3			`*`
4			`* hex2hex reads an input file in Intel HEX format and produces`
5			`* an (unsigned char) array which contains the bytes and writes it to the`
6			`* output file using C syntax`
7			`*/`
8
9			`#define MAX_SIZE (256*1024)`
10			`#define ABANDON(why) { \`
11			`fprintf(stderr, "%s: " why "\n", source); \`
12			`return 0; \`
13			`}`
14
15			`int loadhex(FILE inf, unsigned char buf, char *source)`
16			`{`
17			`int l=0, c, i;`
18
19			`while ((c=getc(inf))!=EOF)`
20			`{`
21			`if (c == ':') /* Sync with beginning of line */`
22			`{`
23			`int n, check;`
24			`unsigned char sum;`
25			`int addr;`
26			`int linetype;`
27
28			`if (fscanf(inf, "%02x", &n) != 1)`
29			`ABANDON("File format error");`
30			`sum = n;`
31
32			`if (fscanf(inf, "%04x", &addr) != 1)`
33			`ABANDON("File format error");`
34			`sum += addr/256;`
35			`sum += addr%256;`
36
37			`if (fscanf(inf, "%02x", &linetype) != 1)`
38			`ABANDON("File format error");`
39			`sum += linetype;`
40
41			`if (linetype != 0)`
42			`continue;`
43
44			`for (i=0;i<n;i++)`
45			`{`
46			`if (fscanf(inf, "%02x", &c) != 1)`
47			`ABANDON("File format error");`
48			`if (addr >= MAX_SIZE)`
49			`ABANDON("File too large");`
50			`buf[addr++] = c;`
51			`if (addr > l)`
52			`l = addr;`
53			`sum += c;`
54			`}`
55
56			`if (fscanf(inf, "%02x", &check) != 1)`
57			`ABANDON("File format error");`
58
59			`sum = ~sum + 1;`
60			`if (check != sum)`
61			`ABANDON("Line checksum error");`
62			`}`
63			`}`
64
65			`return l;`
66			`}`
67
68			`int hex2hex(char source, char target, char *varline)`
69			`{`
70			`FILE inf, outf;`
71
72			`int i,l;`
73			`unsigned char buf[MAX_SIZE];`
74
75			`if ((inf=fopen(source, "r"))==NULL)`
76			`{`
77			`perror(source);`
78			`return 0;`
79			`}`
80
81			`if ((outf=fopen(target, "w"))==NULL)`
82			`{`
83			`perror(target);`
84			`fclose(inf);`
85			`return 0;`
86			`}`
87
88			`l=loadhex(inf, buf, source);`
89			`if (l<=0)`
90			`{`
91			`fclose(inf);`
92			`fclose(outf);`
93			`return l;`
94			`}`
95
96
97			`fprintf(outf, "/\n \t Computer generated file. Do not edit.\n */\n");`
98			`fprintf(outf, "static int %s_len = %d;\n", varline, l);`
99			`fprintf(outf, "static unsigned char %s[] = {\n", varline);`
100
101			`for (i=0;i<l;i++)`
102			`{`
103			`if (i) fprintf(outf, ",");`
104			`if (i && !(i % 16)) fprintf(outf, "\n");`
105			`fprintf(outf, "0x%02x", buf[i]);`
106			`}`
107
108			`fprintf(outf, "\n};\n\n");`
109			`fclose(inf);`
110			`fclose(outf);`
111			`return 1;`
112			`}`

Browse

Tools

Subversion Repositories or1k

[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [sound/] [hex2hex.h] - Blame information for rev 1626