firmware-utils: imagetag: use cyg_crc32 instead of duplicating code

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 44554

2 files changed, 5 insertions, 47 deletions

diff --git a/tools/firmware-utils/Makefile b/tools/firmware-utils/Makefile
index c18024a302..951d4dca1e 100644
--- a/tools/firmware-utils/Makefile
+++ b/tools/firmware-utils/Makefile
@@ -33,7 +33,7 @@ define Host/Compile
 	$(call cc,mkcasfw)
 	$(call cc,mkfwimage,-lz)
 	$(call cc,mkfwimage2,-lz)
-	$(call cc,imagetag imagetag_cmdline)
+	$(call cc,imagetag imagetag_cmdline cyg_crc32)
 	$(call cc,add_header)
 	$(call cc,makeamitbin)
 	$(call cc,encode_crc)
diff --git a/tools/firmware-utils/src/imagetag.c b/tools/firmware-utils/src/imagetag.c
index 166ce9a0e2..c15ffd72d6 100644
--- a/tools/firmware-utils/src/imagetag.c
+++ b/tools/firmware-utils/src/imagetag.c
@@ -18,6 +18,7 @@
 
 #include "bcm_tag.h"
 #include "imagetag_cmdline.h"
+#include "cyg_crc.h"
 
 #define DEADCODE			0xDEADC0DE
 
@@ -30,54 +31,11 @@ struct kernelhdr {
 
 static char pirellitab[NUM_PIRELLI][BOARDID_LEN] = PIRELLI_BOARDS;
 
-static uint32_t crc32tab[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
-};
-
 void int2tag(char *tag, uint32_t value) {
   uint32_t network = htonl(value);
   memcpy(tag, (char *)(&network), 4);
 }
 
-uint32_t crc32(uint32_t crc, uint8_t *data, size_t len)
-{
-	while (len--)
-		crc = (crc >> 8) ^ crc32tab[(crc ^ *data++) & 0xFF];
-
-	return crc;
-}
-
 uint32_t compute_crc32(uint32_t crc, FILE *binfile, size_t compute_start, size_t compute_len)
 {
 	uint8_t readbuf[1024];
@@ -88,14 +46,14 @@ uint32_t compute_crc32(uint32_t crc, FILE *binfile, size_t compute_start, size_t
 	/* read block of 1024 bytes */
 	while (binfile && !feof(binfile) && !ferror(binfile) && (compute_len >= sizeof(readbuf))) {
 		read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), binfile);
-		crc = crc32(crc, readbuf, read);
+		crc = cyg_crc32_accumulate(crc, readbuf, read);
 		compute_len = compute_len - read;
 	}
 
 	/* Less than 1024 bytes remains, read compute_len bytes */
 	if (binfile && !feof(binfile) && !ferror(binfile) && (compute_len > 0)) {
 		read = fread(readbuf, sizeof(uint8_t), compute_len, binfile);
-		crc = crc32(crc, readbuf, read);
+		crc = cyg_crc32_accumulate(crc, readbuf, read);
 	}
 
 	return crc;
@@ -411,7 +369,7 @@ int tagfile(const char *kernel, const char *rootfs, const char *bin, \
 	int2tag(&(tag.rootfsCRC[0]), rootfscrc);
 	int2tag(tag.kernelCRC, kernelcrc);
 	int2tag(tag.fskernelCRC, kernelfscrc);
-	int2tag(tag.headerCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&tag, sizeof(tag) - 20));
+	int2tag(tag.headerCRC, cyg_crc32_accumulate(IMAGETAG_CRC_START, (uint8_t*)&tag, sizeof(tag) - 20));
 
 	fseek(binfile, 0L, SEEK_SET);
 	fwrite(&tag, sizeof(uint8_t), sizeof(tag), binfile);