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
155 lines
4.2 KiB
C
155 lines
4.2 KiB
C
/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#ifndef _OTA_DIFF_H_
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#define _OTA_DIFF_H_
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#include "list.h"
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#define ERROR(msg) \
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printf("ERROR: line number[%d], function[%s] msg[%s]\n", __LINE__, __FUNCTION__, msg); \
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rc = -1; \
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goto OUT;
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#ifndef INT_MAX
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#define INT_MAX ((~(unsigned int)0) >> 1)
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#endif
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#define BLK_CNT(size, blk_len) (((size) + (blk_len) - 1) / (blk_len))
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#define BLK_EXTRA(size, blk_len) ((size) % (blk_len))
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#define THE_BUF(buf, idx, blk_len) ((buf) + (idx) * (blk_len))
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#define BLK_IDX(off, blk_len) ((off) / (blk_len))
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#define ALIGN_UP(v, align) (((v) + ((align) - 1)) & ~((align) - 1))
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#define BLK_UPPER_BOUND(off, blk_len) (ALIGN_UP((off) + 1, (blk_len)))
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#define BLK_LOWER_BOUND(idx, blk_len) ((idx) * (blk_len))
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#define FOLD_N(x, n) ((n) * (x))
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#define MIN(x, y) ((x) < (y) ? (x) : (y))
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#define MIN_TRIPLE(x, y, z) (MIN(x, MIN(y, z)))
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#define FREE(p) if (p) { free(p); }
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#define CMD_COPY 0
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#define CMD_DIFF 1
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#define CMD_EXTRA 2
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typedef struct backup_map_t {
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uint16_t *cache;
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uint16_t backup_n;
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uint16_t cursor;
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uint16_t blk_len;
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uint8_t *buf;
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} bkup_map_t;
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typedef struct relied_detail_st {
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list_t list;
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int32_t new_blk_idx;
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int32_t new_from;
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int32_t old_from;
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int32_t diff_from;
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int32_t step;
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} relied_detail_t;
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typedef struct simplified_relied_detail_st {
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list_t list;
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int32_t new_blk_idx;
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} smpl_relied_detail_t;
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typedef struct old_block_info_st {
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list_t relied_list;
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int relied_cnt;
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list_t simplified_relied_list;
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int simplified_relied_cnt;
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int is_safe;
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} old_blk_info_t;
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typedef enum cmd_type_en {
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CMD_TYPE_DIFF,
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CMD_TYPE_EXTRA,
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} cmd_type_t;
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typedef struct diff_detail_st {
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int32_t old_from;
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int32_t diff_from;
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} diff_detail_t;
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typedef struct extra_detail_st {
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int32_t extra_from;
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} extra_detail_t;
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typedef union cmd_detail_un {
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diff_detail_t diff_detail;
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extra_detail_t extra_detail;
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} cmd_detail_t;
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typedef struct cmd_st {
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list_t list;
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int32_t new_from;
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int32_t step;
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cmd_type_t type;
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cmd_detail_t detail;
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} cmd_t;
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typedef struct new_block_info_st {
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list_t cmd_list;
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int cmd_cnt;
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} new_blk_info_t;
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typedef struct summary_st {
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int ring_cnt;
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int ring_size_max;
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int ring_size_min;
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int patch_size;
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int block_len;
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int block_cnt;
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int zipped_patch4block_size_max;
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int zipped_patch4block_size_min;
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int patch4block_size_max;
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int patch4block_size_min;
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int safe_block_cnt;
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int is_safe_block_ignored;
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} summary_t;
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int ota_diff(uint8_t *old, size_t oldsize, uint8_t *new, size_t newsize, size_t blk_len, int is_safe_ignored, int is_verbose, uint8_t **patch, size_t *patchsize);
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#endif /* _OTA_DIFF_H_ */
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