5b51d50ade
1. effective "Differential Upgrade" patch algorithm with high compression rate 2. effective recovery algorithm support recovery firmware in blocks which has low memory consumption and wear-leveling strategies, especially suitable for embeded devices with low RAM. 3. add sample ota bootloader project, see: board\TencentOS_tiny_EVB_MX_Plus\KEIL\ota\ota_bootloader_recovery 4. add sample application project for download firmware through http, see: board\TencentOS_tiny_EVB_MX_Plus\KEIL\ota\ota_application_download_through_http 5. add sample application project for download firmware through qcloud explorer console, see: board\TencentOS_tiny_EVB_MX_Plus\KEIL\ota\ota_application_download_through_qcloud_iot_explorer 6. an OTA markdown document is pending
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* LzHash.h -- HASH functions for LZ algorithms
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2015-04-12 : Igor Pavlov : Public domain */
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#ifndef __LZ_HASH_H
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#define __LZ_HASH_H
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#define kHash2Size (1 << 10)
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#define kHash3Size (1 << 16)
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#define kHash4Size (1 << 20)
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#define kFix3HashSize (kHash2Size)
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#define kFix4HashSize (kHash2Size + kHash3Size)
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#define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size)
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#define HASH2_CALC hv = cur[0] | ((UInt32)cur[1] << 8);
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#define HASH3_CALC { \
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UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
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h2 = temp & (kHash2Size - 1); \
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hv = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; }
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#define HASH4_CALC { \
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UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
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h2 = temp & (kHash2Size - 1); \
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temp ^= ((UInt32)cur[2] << 8); \
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h3 = temp & (kHash3Size - 1); \
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hv = (temp ^ (p->crc[cur[3]] << 5)) & p->hashMask; }
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#define HASH5_CALC { \
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UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
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h2 = temp & (kHash2Size - 1); \
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temp ^= ((UInt32)cur[2] << 8); \
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h3 = temp & (kHash3Size - 1); \
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temp ^= (p->crc[cur[3]] << 5); \
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h4 = temp & (kHash4Size - 1); \
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hv = (temp ^ (p->crc[cur[4]] << 3)) & p->hashMask; }
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/* #define HASH_ZIP_CALC hv = ((cur[0] | ((UInt32)cur[1] << 8)) ^ p->crc[cur[2]]) & 0xFFFF; */
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#define HASH_ZIP_CALC hv = ((cur[2] | ((UInt32)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF;
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#define MT_HASH2_CALC \
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h2 = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1);
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#define MT_HASH3_CALC { \
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UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
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h2 = temp & (kHash2Size - 1); \
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h3 = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); }
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#define MT_HASH4_CALC { \
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UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
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h2 = temp & (kHash2Size - 1); \
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temp ^= ((UInt32)cur[2] << 8); \
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h3 = temp & (kHash3Size - 1); \
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h4 = (temp ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1); }
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#endif
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