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This commit is contained in:
Olaf Rempel 2007-06-15 15:12:02 +02:00
parent bee14671a4
commit e4c96397e6
8 changed files with 478 additions and 88 deletions
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6
Makefile
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@ -417,9 +417,9 @@ $(_STAGE1_IMG):
stage1: $(_STAGE1) $(_STAGE1_IMG) $(_STAGE1_REAL_TARGETS)
$(_BUILD_CRAMFS)/mkcramfs $(_STAGE1) $(_STAGE1_IMG)/stage1.cramfs
$(_TOOLS)/trx -o $(_STAGE1_IMG)/firmware.trx \
$(_BUILD_KERNEL)/arch/mips/brcm-boards/bcm947xx/compressed/vmlinuz \
$(_STAGE1_IMG)/stage1.cramfs
$(_TOOLS)/trx $(_BUILD_KERNEL)/arch/mips/brcm-boards/bcm947xx/compressed/vmlinuz \
$(_STAGE1_IMG)/stage1.cramfs > \
$(_STAGE1_IMG)/firmware.trx
$(_TOOLS)/gen_image $(_STAGE1_IMG)/firmware.trx > $(_STAGE1_IMG)/firmware.img
stage1-fetch: $(_STAGE1_FETCH_TARGETS)

25
tools/Makefile
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@ -1,19 +1,25 @@
CFLAGS := -O2 -Wall
all: gen_image split_image untrx split_linux
all: gen_image split_image untrx trx split_linux
gen_image: gen_image.o crc32.o
gcc gen_image.o crc32.o -o gen_image
gen_image: gen_image.o crc.o
gcc gen_image.o crc.o -o gen_image
gen_image.o: gen_image.c
gcc $(CFLAGS) -I. -c gen_image.c
crc32.o: crc32.c
gcc $(CFLAGS) -c crc32.c
crc.o: crc.c
gcc $(CFLAGS) -c crc.c
split_image: split_image.c
gcc $(CFLAGS) -I. split_image.c -o split_image
trx: trx.o crc.o
gcc trx.o crc.o -o trx
trx.o: trx.c
gcc $(CFLAGS) -I. -c trx.c
untrx: untrx.c
gcc $(CFLAGS) -I. untrx.c -o untrx
@ -21,7 +27,12 @@ split_linux: split_linux.c
gcc $(CFLAGS) -I. split_linux.c -o split_linux
clean:
rm -f gen_image.o crc32.o gen_image split_image untrx split_linux
rm -f *.o gen_image split_image trx untrx split_linux
dist:
tar -czf image-tools.tar.gz Makefile trxhdr.h typedefs.h gen_image.c crc32.c split_image.c untrx.c split_linux.c
tar -czf image-tools.tar.gz Makefile *.c *.h
testcrc: trx
./trx.org trx.o | xxd > _test1.hex
./trx trx.o | xxd > _test2.hex
diff _test1.hex _test2.hex

290
tools/crc.c Normal file
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@ -0,0 +1,290 @@
/*******************************************************************************
* $Id$
* Copyright 2004, Broadcom Corporation
* All Rights Reserved.
*
* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
* crc.c: utility function to compute various CRCs
******************************************************************************/
#include "typedefs.h"
#include "crc.h"
/*******************************************************************************
* hcs
*
* Computes and inserts a header check sum based on crc8 polynomial
* below. Unlike a typical crc, the header check sum is inserted 13
* bytes from the end of the byte stream (rather than appended to the
* end of the byte stream) such that at the receiver a normal checksum
* computation over all of the bytes results in a known good value.
* Given a constant 12 bytes after the header checksum to the end of
* the header, a lookup table can be used to provide the actual value
* inserted.
******************************************************************************/
static uint8 hcs_table[8] = { 0x16, 0x2c, 0x58, 0xb0, 0x37, 0x6e, 0xdc, 0xef};
void
hcs(
uint8 *pheader, /* pointer to array of data to process */
uint nbytes /* number of input data bytes to process */
)
{
uint8 hcs0, hcs1;
int i;
/* run once with zeros in hcs position, 13th byte from the end */
pheader[nbytes - 12 - 1] = 0;
hcs0 = crc8(pheader, nbytes, CRC8_INIT_VALUE);
/* now compute real hcs to insert in place of zeros */
hcs1 = 0;
for (i = 0; i < 8; i++) {
hcs1 ^= ((hcs0 & (1 << i)) != 0 ? hcs_table[i] : 0);
}
pheader[nbytes - 12 - 1] = hcs1 ^ 0xff;
return;
}
/*******************************************************************************
* crc8
*
* Computes a crc8 over the input data using the polynomial:
*
* x^8 + x^7 +x^6 + x^4 + x^2 + 1
*
* The caller provides the initial value (either CRC8_INIT_VALUE
* or the previous returned value) to allow for processing of
* discontiguous blocks of data. When generating the CRC the
* caller is responsible for complementing the final return value
* and inserting it into the byte stream. When checking, a final
* return value of CRC8_GOOD_VALUE indicates a valid CRC.
*
* Reference: Dallas Semiconductor Application Note 27
* Williams, Ross N., "A Painless Guide to CRC Error Detection Algorithms",
* ver 3, Aug 1993, ross@guest.adelaide.edu.au, Rocksoft Pty Ltd.,
* ftp://ftp.rocksoft.com/clients/rocksoft/papers/crc_v3.txt
*
******************************************************************************/
static uint8 crc8_table[256] = {
0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F
};
#define CRC_INNER_LOOP(n, c, x) \
(c) = ((c) >> 8) ^ crc##n##_table[((c) ^ (x)) & 0xff]
uint8
crc8(
uint8 *pdata, /* pointer to array of data to process */
uint nbytes, /* number of input data bytes to process */
uint8 crc /* either CRC8_INIT_VALUE or previous return value */
)
{
while (nbytes-- > 0)
CRC_INNER_LOOP(8, crc, *pdata++);
return crc;
}
/*******************************************************************************
* crc16
*
* Computes a crc16 over the input data using the polynomial:
*
* x^16 + x^12 +x^5 + 1
*
* The caller provides the initial value (either CRC16_INIT_VALUE
* or the previous returned value) to allow for processing of
* discontiguous blocks of data. When generating the CRC the
* caller is responsible for complementing the final return value
* and inserting it into the byte stream. When checking, a final
* return value of CRC16_GOOD_VALUE indicates a valid CRC.
*
* Reference: Dallas Semiconductor Application Note 27
* Williams, Ross N., "A Painless Guide to CRC Error Detection Algorithms",
* ver 3, Aug 1993, ross@guest.adelaide.edu.au, Rocksoft Pty Ltd.,
* ftp://ftp.rocksoft.com/clients/rocksoft/papers/crc_v3.txt
*
******************************************************************************/
static uint16 crc16_table[256] = {
0x0000, 0x1189, 0x2312, 0x329B, 0x4624, 0x57AD, 0x6536, 0x74BF,
0x8C48, 0x9DC1, 0xAF5A, 0xBED3, 0xCA6C, 0xDBE5, 0xE97E, 0xF8F7,
0x1081, 0x0108, 0x3393, 0x221A, 0x56A5, 0x472C, 0x75B7, 0x643E,
0x9CC9, 0x8D40, 0xBFDB, 0xAE52, 0xDAED, 0xCB64, 0xF9FF, 0xE876,
0x2102, 0x308B, 0x0210, 0x1399, 0x6726, 0x76AF, 0x4434, 0x55BD,
0xAD4A, 0xBCC3, 0x8E58, 0x9FD1, 0xEB6E, 0xFAE7, 0xC87C, 0xD9F5,
0x3183, 0x200A, 0x1291, 0x0318, 0x77A7, 0x662E, 0x54B5, 0x453C,
0xBDCB, 0xAC42, 0x9ED9, 0x8F50, 0xFBEF, 0xEA66, 0xD8FD, 0xC974,
0x4204, 0x538D, 0x6116, 0x709F, 0x0420, 0x15A9, 0x2732, 0x36BB,
0xCE4C, 0xDFC5, 0xED5E, 0xFCD7, 0x8868, 0x99E1, 0xAB7A, 0xBAF3,
0x5285, 0x430C, 0x7197, 0x601E, 0x14A1, 0x0528, 0x37B3, 0x263A,
0xDECD, 0xCF44, 0xFDDF, 0xEC56, 0x98E9, 0x8960, 0xBBFB, 0xAA72,
0x6306, 0x728F, 0x4014, 0x519D, 0x2522, 0x34AB, 0x0630, 0x17B9,
0xEF4E, 0xFEC7, 0xCC5C, 0xDDD5, 0xA96A, 0xB8E3, 0x8A78, 0x9BF1,
0x7387, 0x620E, 0x5095, 0x411C, 0x35A3, 0x242A, 0x16B1, 0x0738,
0xFFCF, 0xEE46, 0xDCDD, 0xCD54, 0xB9EB, 0xA862, 0x9AF9, 0x8B70,
0x8408, 0x9581, 0xA71A, 0xB693, 0xC22C, 0xD3A5, 0xE13E, 0xF0B7,
0x0840, 0x19C9, 0x2B52, 0x3ADB, 0x4E64, 0x5FED, 0x6D76, 0x7CFF,
0x9489, 0x8500, 0xB79B, 0xA612, 0xD2AD, 0xC324, 0xF1BF, 0xE036,
0x18C1, 0x0948, 0x3BD3, 0x2A5A, 0x5EE5, 0x4F6C, 0x7DF7, 0x6C7E,
0xA50A, 0xB483, 0x8618, 0x9791, 0xE32E, 0xF2A7, 0xC03C, 0xD1B5,
0x2942, 0x38CB, 0x0A50, 0x1BD9, 0x6F66, 0x7EEF, 0x4C74, 0x5DFD,
0xB58B, 0xA402, 0x9699, 0x8710, 0xF3AF, 0xE226, 0xD0BD, 0xC134,
0x39C3, 0x284A, 0x1AD1, 0x0B58, 0x7FE7, 0x6E6E, 0x5CF5, 0x4D7C,
0xC60C, 0xD785, 0xE51E, 0xF497, 0x8028, 0x91A1, 0xA33A, 0xB2B3,
0x4A44, 0x5BCD, 0x6956, 0x78DF, 0x0C60, 0x1DE9, 0x2F72, 0x3EFB,
0xD68D, 0xC704, 0xF59F, 0xE416, 0x90A9, 0x8120, 0xB3BB, 0xA232,
0x5AC5, 0x4B4C, 0x79D7, 0x685E, 0x1CE1, 0x0D68, 0x3FF3, 0x2E7A,
0xE70E, 0xF687, 0xC41C, 0xD595, 0xA12A, 0xB0A3, 0x8238, 0x93B1,
0x6B46, 0x7ACF, 0x4854, 0x59DD, 0x2D62, 0x3CEB, 0x0E70, 0x1FF9,
0xF78F, 0xE606, 0xD49D, 0xC514, 0xB1AB, 0xA022, 0x92B9, 0x8330,
0x7BC7, 0x6A4E, 0x58D5, 0x495C, 0x3DE3, 0x2C6A, 0x1EF1, 0x0F78
};
uint16
crc16(
uint8 *pdata, /* pointer to array of data to process */
uint nbytes, /* number of input data bytes to process */
uint16 crc /* either CRC16_INIT_VALUE or previous return value */
)
{
while (nbytes-- > 0)
CRC_INNER_LOOP(16, crc, *pdata++);
return crc;
}
/*******************************************************************************
* crc32
*
* Computes a crc32 over the input data using the polynomial:
*
* x^32+x^26+x^23+x^22+x^16+x^12+x^11+X^10+x^8+x^7+x^5+x^4+x^2+x+1
*
* The caller provides the initial value (either CRC32_INIT_VALUE
* or the previous returned value) to allow for processing of
* discontiguous blocks of data. When generating the CRC the
* caller is responsible for complementing the final return value
* and inserting it into the byte stream. When checking, a final
* return value of CRC32_GOOD_VALUE indicates a valid CRC.
*
* Reference: Dallas Semiconductor Application Note 27
* Williams, Ross N., "A Painless Guide to CRC Error Detection Algorithms",
* ver 3, Aug 1993, ross@guest.adelaide.edu.au, Rocksoft Pty Ltd.,
* ftp://ftp.rocksoft.com/clients/rocksoft/papers/crc_v3.txt
*
******************************************************************************/
static uint32 crc32_table[256] = {
0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
};
uint32
crc32(
uint8 *pdata, /* pointer to array of data to process */
uint nbytes, /* number of input data bytes to process */
uint32 crc /* either CRC32_INIT_VALUE or previous return value */
)
{
while (nbytes-- > 0)
CRC_INNER_LOOP(32, crc, *pdata++);
return crc;
}

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/*******************************************************************************
* $Id$
* Copyright 2004, Broadcom Corporation
* All Rights Reserved.
*
* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
* crc.h - a function to compute crc for iLine10 headers
******************************************************************************/
#ifndef _RTS_CRC_H_
#define _RTS_CRC_H_ 1
#include "typedefs.h"
#ifdef __cplusplus
extern "C" {
#endif
#define CRC8_INIT_VALUE 0xff /* Initial CRC8 checksum value */
#define CRC8_GOOD_VALUE 0x9f /* Good final CRC8 checksum value */
#define HCS_GOOD_VALUE 0x39 /* Good final header checksum value */
#define CRC16_INIT_VALUE 0xffff /* Initial CRC16 checksum value */
#define CRC16_GOOD_VALUE 0xf0b8 /* Good final CRC16 checksum value */
#define CRC32_INIT_VALUE 0xffffffff /* Initial CRC32 checksum value */
#define CRC32_GOOD_VALUE 0xdebb20e3 /* Good final CRC32 checksum value */
void hcs(uint8 *, uint);
uint8 crc8(uint8 *, uint, uint8);
uint16 crc16(uint8 *, uint, uint16);
uint32 crc32(uint8 *, uint, uint32);
/* macros for common usage */
#define APPEND_CRC8(pbytes, nbytes) \
do { \
uint8 tmp = crc8(pbytes, nbytes, CRC8_INIT_VALUE) ^ 0xff; \
(pbytes)[(nbytes)] = tmp; \
(nbytes) += 1; \
} while (0)
#define APPEND_CRC16(pbytes, nbytes) \
do { \
uint16 tmp = crc16(pbytes, nbytes, CRC16_INIT_VALUE) ^ 0xffff; \
(pbytes)[(nbytes) + 0] = (tmp >> 0) & 0xff; \
(pbytes)[(nbytes) + 1] = (tmp >> 8) & 0xff; \
(nbytes) += 2; \
} while (0)
#define APPEND_CRC32(pbytes, nbytes) \
do { \
uint32 tmp = crc32(pbytes, nbytes, CRC32_INIT_VALUE) ^ 0xffffffff; \
(pbytes)[(nbytes) + 0] = (tmp >> 0) & 0xff; \
(pbytes)[(nbytes) + 1] = (tmp >> 8) & 0xff; \
(pbytes)[(nbytes) + 2] = (tmp >> 16) & 0xff; \
(pbytes)[(nbytes) + 3] = (tmp >> 24) & 0xff; \
(nbytes) += 4; \
} while (0)
#ifdef __cplusplus
}
#endif
#endif /* _RTS_CRC_H_ */

63
tools/crc32.c
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@ -1,63 +0,0 @@
/*
* efone - Distributed internet phone system.
*
* (c) 1999,2000 Krzysztof Dabrowski
* (c) 1999,2000 ElysiuM deeZine
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* based on implementation by Finn Yannick Jacobs
*/
#include <stdio.h>
#include <stdlib.h>
/* crc_tab[]
* this crcTable is being build by chksum_crc32GenTab().
* so make sure, you call it before using the other
* functions!
*/
u_int32_t crc_tab[256];
/* chksum_crc()
* to a given block, this one calculates the
* crc32-checksum until the length is
* reached. the crc32-checksum will be
* the result.
*/
u_int32_t chksum_crc32 (unsigned char *block, unsigned int length) {
register unsigned long crc;
unsigned long i;
crc = 0xFFFFFFFF;
for (i = 0; i < length; i++) {
crc = ((crc >> 8) & 0x00FFFFFF) ^ crc_tab[(crc ^ *block++) & 0xFF];
}
return (crc ^ 0xFFFFFFFF);
}
/* chksum_crc32gentab()
* to a global crc_tab[256], this one will
* calculate the crcTable for crc32-checksums.
* it is generated to the polynom [..]
*/
void chksum_crc32gentab () {
unsigned long crc, poly;
int i, j;
poly = 0xEDB88320L;
for (i = 0; i < 256; i++) {
crc = i;
for (j = 8; j > 0; j--) {
if (crc & 1) {
crc = (crc >> 1) ^ poly;
} else {
crc >>= 1;
}
}
crc_tab[i] = crc;
}
}

25
tools/gen_image.c
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@ -11,12 +11,10 @@
#include <sys/types.h>
#include "trxhdr.h"
extern u_int32_t chksum_crc32(unsigned char *block, unsigned int length);
extern void chksum_crc32gentab();
#include "crc.h"
int main(int argc, char *argv[]) {
struct trx_header trx;
struct trx_header *loadtrx, trx;
int i, cnt;
FILE *fp;
char *buf;
@ -33,11 +31,12 @@ int main(int argc, char *argv[]) {
}
// init main header
memset(&trx, 0, sizeof(struct trx_header));
trx.magic = FILE_MAGIC;
loadtrx = (void *)buf;
memset(loadtrx, 0, sizeof(struct trx_header));
loadtrx->magic = FILE_MAGIC;
// dunno
loadtrx->flag_version = 0x8000;
// copy header
memcpy(buf, &trx, sizeof(struct trx_header));
cnt = sizeof(struct trx_header);
for (i = 1; i < argc; i++) {
@ -104,15 +103,11 @@ int main(int argc, char *argv[]) {
fclose(fp);
}
chksum_crc32gentab();
// copy main header again
memcpy(&trx, buf, sizeof(struct trx_header));
trx.len = cnt;
// overall length
loadtrx->len = cnt;
// create chksum without first 3 fields
trx.crc32 = chksum_crc32(buf +12, cnt);
memcpy(buf, &trx, sizeof(struct trx_header));
loadtrx->crc32 = crc32(buf +12, cnt -12, CRC32_INIT_VALUE);
// flush to output
write(1, buf, cnt);

BIN
tools/trx
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88
tools/trx.c Normal file
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@ -0,0 +1,88 @@
/*
* creates LOAD/Flash images for Siemens SE505
*
* (c) 01/2005 Olaf Rempel <razzor at kopf minus tisch dot de>
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include "trxhdr.h"
#include "crc.h"
int main(int argc, char *argv[]) {
struct trx_header *trx;
int i, cnt, fcnt = 0;
FILE *fp;
char *buf;
if (argc <= 1) {
printf("USAGE: trx file1 [file2] [file3] > outfile.trx\n");
exit(-1);
}
// this is.. ugly, but works :)
if ((buf = malloc(TRX_MAX_LEN)) == NULL) {
perror("malloc");
exit(-1);
}
// init main header
trx = (void *)buf;
memset(trx, 0, sizeof(struct trx_header));
trx->magic = TRX_MAGIC;
trx->flag_version = TRX_VERSION << 16;
// copy header
cnt = sizeof(struct trx_header);
for (i = 1; i < argc; i++) {
if (fcnt == 2) {
fprintf(stdout, "max. 3 Files\n");
free(buf);
exit(-1);
}
// align offsets
while (cnt % 4)
buf[cnt++] = 0;
trx->offsets[fcnt++] = cnt;
// open file
if ((fp = fopen(argv[i], "r")) < 0) {
perror(argv[i]);
free(buf);
exit(-1);
}
// copy file to buffer
while (!feof(fp))
cnt += fread(buf + cnt, 1, 65536, fp);
// close file
fclose(fp);
}
// align size (to page?)
while (cnt % 0x1000)
buf[cnt++] = 0;
trx->len = cnt;
// calc crc32
trx->crc32 = crc32(buf +12, cnt -12, CRC32_INIT_VALUE);
// flush to output
write(1, buf, cnt);
free(buf);
return 0;
}