44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
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/* *
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* Copyright (c) CompanyNameMagicTag 2018-2019. All rights reserved.
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* Description: upg from nv
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* Author: CompanyName
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* Create: 2018-10-31
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*/
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#include "upg_ftm_nv.h"
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/* whether upgrade dependence on nv determinated by kernel. use this message for patch when meet the problem following.
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* problem decription: module reset by half of upgrading when upgrade file conform to certain performance.
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* recurrent circulation of upgrading.
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* ( performance: like hupg head version is drfferent from inner image version, this exception cause RSA reset)
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* OR not manipulate factory NV. manipulate other space according to factory nv option.
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*/
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td_bool boot_upg_is_do_upg_from_nv(td_void)
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{
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td_u32 ret;
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ext_nv_ftm_upg_extension upg_nv = { 0 };
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ret = uapi_factory_nv_read(EXT_NV_FTM_UPG_EXTENSION_ID, &upg_nv, sizeof(upg_nv));
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if (ret != EXT_ERR_SUCCESS) {
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return TD_TRUE;
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}
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if (upg_nv.magic != EXT_UPG_NV_MAGIC) {
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return TD_TRUE;
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}
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if (upg_nv.cur_times > upg_nv.dst_times) {
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/* upgrading dependence on nv, and try to upgrade failed for several times */
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return TD_FALSE;
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}
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upg_nv.cur_times++;
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ret = uapi_factory_nv_write(EXT_NV_FTM_UPG_EXTENSION_ID, &upg_nv, sizeof(upg_nv));
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if (ret != EXT_ERR_SUCCESS) {
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return TD_TRUE;
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}
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return TD_TRUE;
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}
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