Root/tools/firmware-utils/src/makeamitbin.c

1/*
2 * makeamitbin - create firmware binaries for MGB100
3 *
4 * Copyright (C) 2007 Volker Weiss <dev@tintuc.de>
5 * Christian Welzel <dev@welzel-online.ch>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 *
21 */
22
23
24#include <stdlib.h>
25#include <stdio.h>
26#include <string.h>
27
28
29/* defaults: Level One WAP-0007 */
30static char *ascii1 = "DDC_RUS001";
31static char *ascii2 = "Queen";
32
33static struct hdrinfo {
34  char *name;
35    unsigned long unknown; /* can probably be any number, maybe version number */
36    int topalign;
37    unsigned int addr;
38    unsigned int size;
39} hdrinfo[] = {
40    { "bios", 0xc76be111, 1, 0x3fa000, 0x006000 }, /* BIOS */
41    { "recovery", 0xc76be222, 0, 0x3f0000, 0x004000 }, /* Recovery Loader */
42    { "linux", 0xc76bee9d, 0, 0x000000, 0x100000 }, /* Linux */
43    { "ramdisk", 0xc76bee9d, 0, 0x100000, 0x280000 }, /* ramdisk */
44    { "amitconfig", 0xc76bee8b, 0, 0x380000, 0x060000 }, /* AMIT config */
45    { "redboot", 0x00000000, 1, 0x3d0000, 0x030000 }, /* Redboot 128kB image */
46    { "redbootlow", 0, 0, 0x3e0000, 0x18000 }, /* Redboot 1. part */
47    { "redboothigh", 0, 0, 0x3fa000, 0x6000 }, /* Redboot 2. part */
48    { "linux3g", 0xcb5f06b5, 0, 0x000000, 0x100000 }, /* Linux */
49    { "ramdisk3g", 0xcb5f06b5, 0, 0x100000, 0x280000 }, /* ramdisk */
50    { NULL }
51};
52
53/*
54CHD2WLANU_R400b7
55
5611e1 6bc7
5722e2 6bc7
585dc3 47c8
595cc3 47c8
6021c3 47c8
61*/
62
63/*
6420060106_DDC_WAP-0007_R400b4
65
6611e1 6bc7
6722e2 6bc7
689dee 6bc7
699dee 6bc7
708bee 6bc7
71*/
72
73/*
74WMU-6000FS_R400b6
75
7611e1 6bc7
7722e2 6bc7
786d2d 0fc8
796c2d 0fc8
80542d 0fc8
81*/
82
83/*
84WAP-0007(R4.00b8)_2006-10-02
85
869979 5fc8
8722e2 6bc7
88c46e cec8
89c36e cec8
90a76e cec8
91*/
92
93
94
95#define HDRSIZE 80
96
97#define COPY_SHORT(d, o, v) d[o+0] = (unsigned char)((v) & 0xff); \
98                             d[o+1] = (unsigned char)(((v) >> 8) & 0xff)
99#define COPY_LONG(d, o, v) d[o+0] = (unsigned char)((v) & 0xff); \
100                             d[o+1] = (unsigned char)(((v) >> 8) & 0xff); \
101                                                       d[o+2] = (unsigned char)(((v) >> 16) & 0xff); \
102                                                       d[o+3] = (unsigned char)(((v) >> 24) & 0xff)
103#define READ_SHORT(d, o) ((unsigned short)(d[o+0]) + \
104                             (((unsigned short)(d[o+1])) << 8))
105
106/*
10700..0d ASCII product ID
1080e..0f checksum of payload
10910..1b ASCII Queen
1101c..1f AMIT BIOS: 11e1 6bc7, Recovery Tool: 22e2 6bc7
111       Linux: 5dc3 47c8, ramdisk: 5cc3 47c8
112             AMIT FS: 21c3 47c8 VERSION NUMBER??????
11320..23 offset in flash aligned to segment boundary
11424..27 length in flash aligned to segment boundary
11528..2b offset in flash (payload)
1162c..2f length (payload)
11730..3f always 0
11840..47 always 4248 0101 5000 0001 (last maybe .....0501)
11948..4b same as 20..23
1204c..4d always 0b00
1214e..4f inverted checksum of header
122*/
123
124unsigned short checksum(unsigned char *data, long size)
125{
126    long n;
127    unsigned short d, cs = 0;
128    for (n = 0; n < size; n += 2)
129    {
130        d = READ_SHORT(data, n);
131        cs += d;
132        if (cs < d)
133            cs++;
134    }
135    if (size & 1)
136    {
137        d = data[n];
138        cs += d;
139        if (cs < d)
140            cs++;
141    }
142    return cs;
143}
144
145void showhdr(unsigned char *hdr)
146{
147    int i, j;
148    for (j = 0; j < 5; j++)
149    {
150        for (i = 0; i < 16; i++)
151        {
152            printf("%02x ", (unsigned int)(hdr[j * 16 + i]));
153        }
154        printf(" ");
155        for (i = 0; i < 16; i++)
156        {
157            unsigned char d = hdr[j * 16 + i];
158            printf("%c", (d >= ' ' && d < 127) ? d : '.');
159        }
160        printf("\n");
161    }
162}
163
164void makehdr(unsigned char *hdr, struct hdrinfo *info,
165             unsigned char *data, long size, int last)
166{
167    unsigned int offset = info->addr + 0x10;
168    memset(hdr, 0, HDRSIZE);
169    if (info->topalign)
170        offset = info->addr + info->size - size; /* top align */
171    strncpy((char *)hdr + 0x00, ascii1, 14);
172    strncpy((char *)hdr + 0x10, ascii2, 12);
173    COPY_LONG(hdr, 0x1c, info->unknown);
174    COPY_LONG(hdr, 0x20, info->addr);
175    COPY_LONG(hdr, 0x24, info->size);
176    COPY_LONG(hdr, 0x28, offset);
177    COPY_LONG(hdr, 0x2c, size);
178    COPY_LONG(hdr, 0x40, 0x01014842);
179    COPY_LONG(hdr, 0x44, last ? 0x01050050 : 0x01000050);
180    COPY_LONG(hdr, 0x48, info->addr);
181    COPY_SHORT(hdr, 0x4c, info->unknown == 0xcb5f06b5 ? 0x0016 : 0x000b);
182    COPY_SHORT(hdr, 0x0e, checksum(data, size));
183    COPY_SHORT(hdr, 0x4e, ~checksum(hdr, HDRSIZE));
184}
185
186unsigned char *read_file(const char *name, long *size)
187{
188    FILE *f;
189    unsigned char *data = NULL;
190    *size = 0;
191    f = fopen(name, "r");
192    if (f != NULL)
193    {
194        if (fseek(f, 0, SEEK_END) == 0)
195        {
196        *size = ftell(f);
197            if (*size != -1)
198            {
199                if (fseek(f, 0, SEEK_SET) == 0)
200                {
201                    data = (unsigned char *)malloc(*size);
202                    if (data != NULL)
203                    {
204                        if (fread(data, sizeof(char), *size, f) != *size)
205                        {
206                            free(data);
207                            data = NULL;
208                        }
209                    }
210                }
211            }
212        }
213        fclose(f);
214    }
215    return data;
216}
217
218struct hdrinfo *find_hdrinfo(const char *name)
219{
220    int n;
221    for (n = 0; hdrinfo[n].name != NULL; n++)
222    {
223        if (strcmp(name, hdrinfo[n].name) == 0)
224            return &hdrinfo[n];
225    }
226    return NULL;
227}
228
229void oferror(FILE *f)
230{
231    printf("file error\n");
232    exit(2);
233}
234
235void showhelp(void)
236{
237    printf("Syntax: makeamitbin [options]\n");
238    printf("Options:\n");
239    printf(" -1 ID1\tFirmware identifier 1, e.g. 'DDC_RUS001' for manufacturer LevelOne\n");
240    printf(" -2 ID2\tFirmware identifier 2, 'Queen' in all known cases\n");
241    printf(" -o FILE\tOutput file\n");
242    printf(" -ids\t\tShow a list of known firmware identifiers.\n");
243    exit(1);
244}
245
246void show_fwids(void)
247{
248    printf("List of known firmware identifiers:\n");
249    printf("Manufacturer\t\tProduct\t\tIdentifier\n");
250    printf("=====================================================\n");
251    printf("Conceptronic\t\tCHD2WLANU\tLLM_RUS001\n");
252    printf("Pearl\t\t\tPE6643\t\tQueen\n");
253    printf("Micronica\t\tMGB100\t\tQueen\n");
254    printf("LevelOne\t\tWAP-0007\tDDC_RUS001\n");
255    printf("SMC\t\t\tWAPS-G\t\tSMC_RUS001\n");
256    printf("OvisLink (AirLive)\tWMU-6\t\tOVS_RUS001\n");
257    printf("SafeCom SWSAPUR-5\tFMW\t\tSafeco_RPS001\n");
258    exit(1);
259}
260
261int main(int argc, char *argv[])
262{
263    unsigned char hdr[HDRSIZE];
264    unsigned char *data;
265    FILE *of;
266    char *outfile = NULL;
267    char *type;
268    struct hdrinfo *info;
269    long size;
270    int last = 0;
271    int n;
272    for (n = 1; n < argc; n++)
273    {
274        if (strcmp(argv[n], "-1") == 0)
275            ascii1 = argv[n+1];
276        if (strcmp(argv[n], "-2") == 0)
277            ascii2 = argv[n+1];
278        if (strcmp(argv[n], "-o") == 0)
279            outfile = argv[n+1];
280        if (strcmp(argv[n], "-ids") == 0)
281            show_fwids();
282    }
283    if (ascii1 == NULL || ascii2 == NULL || outfile == NULL)
284        showhelp();
285    of = fopen(outfile, "w");
286    if (of == NULL)
287        oferror(of);
288    for (n = 1; n < argc; n++)
289    {
290        if (strncmp(argv[n], "-", 1) != 0)
291        {
292            type = argv[n++];
293            if (n >= argc)
294                showhelp();
295            last = ((n + 1) >= argc); /* dirty, options first! */
296            info = find_hdrinfo(type);
297            if (info == NULL)
298                showhelp();
299            data = read_file(argv[n], &size);
300            if (data == NULL)
301                showhelp();
302            makehdr(hdr, info, data, size, last);
303            /* showhdr(hdr); */
304            if (fwrite(hdr, HDRSIZE, 1, of) != 1)
305                oferror(of);
306            if (fwrite(data, size, 1, of) != 1)
307                oferror(of);
308            free(data);
309        }
310        else
311            n++;
312    }
313    if (fclose(of) != 0)
314        oferror(NULL);
315    return 0;
316}
317

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