diff options
Diffstat (limited to 'gen_fw.c')
| -rw-r--r-- | gen_fw.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/gen_fw.c b/gen_fw.c new file mode 100644 index 0000000..e068c2c --- /dev/null +++ b/gen_fw.c @@ -0,0 +1,164 @@ +/* $Id: gen_fw.c,v 1.2 2003/12/25 22:40:27 jal2 Exp $ */ + +/* This file includes the old style firmwares and outputs new, binary files. */ + +#include <stdio.h> +#include <assert.h> + +#include "fw-rfmd-1.101.0-84.h" +#include "fw-rfmd-acc-1.101.0-84.h" +#include "fw-i3861.h" +#include "fw-i3863.h" +#include "fw-r505.h" +#include "fw-505rfmd2958-1.101.0-86.h" + +typedef unsigned char u8; +typedef unsigned int u32; + +/* The struct of the firmware header: */ +typedef struct { + u32 crc; // CRC32 of the whole image (seed ~0, no post-process) + u32 board_id; // BOARDTYPE_xxx + u32 version; // firmware version code + u32 str_offset; // printable string offset (copyright) + u32 internal_offset; // internal firmware image offset + u32 internal_len; // internal firmawre image len + u32 external_offset; // external firmware image offset + u32 external_len; // external firmware image len +} at76c50x_fw_t __attribute__((packed)); + +#define cpu_to_le32(x) (x) +// round to next multiple of four +#define QUAD(x) ((x) % 4 ? (x) + (4 - ((x)%4)) : (x)) + +u8 intfw_503rfmd[] = FW_503RFMD_INTERNAL; +u8 extfw_503rfmd[] = FW_503RFMD_EXTERNAL; +u8 intfw_503rfmd_acc[] = FW_503RFMD_ACC_INTERNAL; +u8 extfw_503rfmd_acc[] = FW_503RFMD_ACC_EXTERNAL; +u8 intfw_i3861[] = FW_I3861_INTERNAL; +u8 extfw_i3861[] = FW_I3861_EXTERNAL; +u8 intfw_i3863[] = FW_I3863_INTERNAL; +u8 extfw_i3863[] = FW_I3863_EXTERNAL; +u8 intfw_505rfmd[] = FW_505RFMD_INTERNAL; +u8 extfw_505rfmd[] = FW_505RFMD_EXTERNAL; +u8 intfw_505rfmd2958[] = FW_505RFMD2958_INTERNAL; +u8 extfw_505rfmd2958[] = FW_505RFMD2958_EXTERNAL; + +struct fw { + const char *filename; + u32 board_id; + u32 version; + const char *str_id; + u8 *intfw; + u32 intfw_sz; + u8 *extfw; + u32 extfw_sz; +} fws[] = { + { "at76c503-rfmd-fw", 1, 0x01650054, "1.101.0-84 503 RFMD " + "Copyright (c) 1999-2000 by Atmel Corporation", + intfw_503rfmd, sizeof(intfw_503rfmd), extfw_503rfmd, sizeof(extfw_503rfmd)}, + + { "at76c503-rfmd-acc-fw", 3, 0x01650054, "1.101.0-84 503 RFMD Accton design " + "Copyright (c) 1999-2000 by Atmel Corporation", + intfw_503rfmd_acc, sizeof(intfw_503rfmd_acc), extfw_503rfmd_acc, sizeof(extfw_503rfmd_acc)}, + + { "at76c503-i3861-fw", 0, 0x005a002c, "0.90.0-44 Intersil 3861 " + "Copyright (c) 1999-2000 by Atmel Corporation", + intfw_i3861, sizeof(intfw_i3861), extfw_i3861, sizeof(extfw_i3861)}, + + { "at76c503-i3863-fw", 0, 0x005a002c, "0.90.0-44 Intersil 3863 " + "Copyright (c) 1999-2000 by Atmel Corporation", + intfw_i3863, sizeof(intfw_i3863), extfw_i3863, sizeof(extfw_i3863)}, + + { "at76c505-rfmd-fw", 2, 0x005b0004, "0.91.0-4 505 RFMD " + "Copyright (c) 1999-2000 by Atmel Corporation", + intfw_505rfmd, sizeof(intfw_505rfmd), extfw_505rfmd, sizeof(extfw_505rfmd)}, + + { "at76c505-rfmd2958-fw", 2, 0x01650056, "1.101.0-86 505 RFMD2958 " + "Copyright (c) 1999-2000 by Atmel Corporation", + intfw_505rfmd2958, sizeof(intfw_505rfmd2958), extfw_505rfmd2958, sizeof(extfw_505rfmd2958)}, + +}; + +int nr_fws = sizeof(fws) / sizeof(struct fw); +const u8 zeros[] = {0,0,0}; + +#define _CRCPOLY_LE 0xedb88320 +static u32 crc32 (u32 crc, u8 const *p, size_t len) +{ + int i; + while (len--) { + crc ^= *p++; + for (i = 0; i < 8; i++) + crc = (crc >> 1) ^ ((crc & 1) ? _CRCPOLY_LE : 0); + } + return crc; +} + +int main(void) +{ + int i; + u32 val, offs; + FILE *f; + struct fw *fw; + at76c50x_fw_t hd; + + for(i=0,fw=fws; i < nr_fws; fw++,i++) { + if ((f=fopen(fw->filename, "w")) == NULL) { + fprintf(stderr,"#ERR cannot open %s for writing (errno %m)\n", + fw->filename); + continue; + } + + hd.crc = ~0; /* the initial seed */ + hd.board_id = cpu_to_le32(fw->board_id); + hd.version = cpu_to_le32(fw->version); + // string area starts after header + hd.str_offset = cpu_to_le32(sizeof(at76c50x_fw_t)); + hd.internal_offset = hd.str_offset + strlen(fw->str_id) + 1; + hd.internal_offset = QUAD(hd.internal_offset); + hd.internal_len = fw->intfw_sz; + hd.external_offset = hd.internal_offset + hd.internal_len; + hd.external_offset = QUAD(hd.external_offset); + hd.external_len = fw->extfw_sz; + + /* calc crc */ + /* the header */ + hd.crc = crc32(hd.crc, (u8 *)&hd.board_id, 0x20-0x4); + /* the string */ + hd.crc = crc32(hd.crc, fw->str_id, strlen(fw->str_id) +1); + /* zeros in gap */ + hd.crc = crc32(hd.crc, zeros, hd.internal_offset - + (hd.str_offset + strlen(fw->str_id) + 1)); + /* internal fw */ + hd.crc = crc32(hd.crc, fw->intfw, fw->intfw_sz); + /* zeros in gap */ + hd.crc = crc32(hd.crc, zeros, hd.external_offset - + (hd.internal_offset + fw->intfw_sz)); + /* external fw */ + hd.crc = crc32(hd.crc, fw->extfw, fw->extfw_sz); + +#define FWRITE(ptr,len,fp) \ + if (len > 0) {\ + if (fwrite(ptr,len,1,fp) < 1) {\ + fprintf(stderr,"#ERR failed to write %d bytes, errno %m\n", len);\ + fclose(fp);\ + continue;\ + }\ + } + + FWRITE((u8 *)&hd, sizeof(hd),f); + FWRITE(fw->str_id, strlen(fw->str_id)+1, f); + FWRITE(zeros, hd.internal_offset - + (hd.str_offset + strlen(fw->str_id) + 1), f); + FWRITE(fw->intfw, fw->intfw_sz, f); + FWRITE(zeros, hd.external_offset - + (hd.internal_offset + fw->intfw_sz), f); + FWRITE(fw->extfw, fw->extfw_sz, f); + + fclose(f); + } + + return 0; +} + |