int optimus_sdc_burn_dtb_load(HIMAGE hImg)
{
s64 itemSz = 0;
HIMAGEITEM hImgItem = NULL;
int rc = 0;
const char* partName = "dtb";
u64 partBaseOffset = OPTIMUS_DOWNLOAD_TRANSFER_BUF_ADDR;
unsigned char* dtbTransferBuf = (unsigned char*)partBaseOffset;
//meson1.dtb but not meson.dtb for m8 compatible
if (_check_if_secureboot_enabled()) {
DWN_MSG("SecureEnabled, use meson1_ENC\n");
hImgItem = image_item_open(hImg, partName, "meson1_ENC");
}
else {
hImgItem = image_item_open(hImg, partName, "meson1");
}
if (!hImgItem) {
DWN_WRN("Fail to open item [meson1,%s]\n", partName);
return ITEM_NOT_EXIST;
}
itemSz = image_item_get_size(hImgItem);
if (!itemSz) {
DWN_ERR("Item size 0\n");
image_item_close(hImgItem); return __LINE__;
}
#if 1
const unsigned itemSzNotAligned = image_item_get_first_cluster_size(hImg, hImgItem);
if (itemSzNotAligned /*& 0x7*/) {//Not Aligned 8bytes/64bits, mmc dma read will failed
DWN_MSG("align 4 mmc read...\t");//Assert Make 'DDR' buffer addr align 8
dtbTransferBuf += image_get_cluster_size(hImg) - itemSzNotAligned;
partBaseOffset += image_get_cluster_size(hImg) - itemSzNotAligned;
}
#endif
rc = image_item_read(hImg, hImgItem, dtbTransferBuf, (unsigned)itemSz);
if (rc) {
DWN_ERR("Failed at item read, rc = %d\n", rc);
image_item_close(hImgItem); return __LINE__;
}
image_item_close(hImgItem);
rc = optimus_parse_img_download_info(partName, itemSz, "normal", "mem", partBaseOffset);
if (rc) {
DWN_ERR("Failed in init down info\n"); return __LINE__;
}
{
unsigned wrLen = 0;
char errInfo[512];
wrLen = optimus_download_img_data(dtbTransferBuf, (unsigned)itemSz, errInfo);
rc = (wrLen == itemSz) ? 0 : __LINE__;
}
return rc;
}
//fetch the keys names which need be burned from item[conf, keys]
static int sdc_burn_get_user_key_names(HIMAGE hImg, const char* **pKeysName, unsigned* keysNum)
{
int rc = 0;
HIMAGEITEM hImgItem = NULL;
unsigned itemSz = 0;
unsigned char* thisReadBuf = (unsigned char*)OPTIMUS_SPARSE_IMG_FILL_VAL_BUF;//This buf is not used and not need reuse when burning keys
const unsigned thisReadBufSz = (OPTIMUS_SPARSE_IMG_FILL_BUF_SZ >> 1);
const char* *keysName = (const char**)(thisReadBuf + thisReadBufSz);
hImgItem = image_item_open(hImg, "conf", "keys");
if (!hImgItem) {
DWN_ERR("Fail to open keys.conf\n");
return ITEM_NOT_EXIST;
}
itemSz = (unsigned)image_item_get_size(hImgItem);
if (!itemSz) {
DWN_ERR("Item size 0\n");
image_item_close(hImgItem); return __LINE__;
}
const unsigned itemSzNotAligned = image_item_get_first_cluster_size(hImg, hImgItem);
if (itemSzNotAligned /*& 0x7*/) {//Not Aligned 8bytes/64bits, mmc dma read will failed
DWN_MSG("align 4 mmc read...\t");//Assert Make 'DDR' buffer addr align 8
thisReadBuf += image_get_cluster_size(hImg);
thisReadBuf -= itemSzNotAligned;
}
rc = image_item_read(hImg, hImgItem, thisReadBuf, itemSz);
if (rc) {
DWN_ERR("Failed at item read, rc = %d\n", rc);
image_item_close(hImgItem); return __LINE__;
}
image_item_close(hImgItem);
if (itemSz >= thisReadBufSz) {
DWN_ERR("itemSz(0x%x) of keys.conf too large, > max 0x%x.\n", itemSz, thisReadBufSz);
return __LINE__;
}
rc = _optimus_parse_buf_2_lines((char*)thisReadBuf, itemSz, keysName, keysNum, 16);
if (rc) {
DWN_ERR("Fail in parse buf_2_lines\n");
return __LINE__;
}
rc = _optimus_abandon_ini_comment_lines((char**)keysName, *keysNum);
*pKeysName = keysName;
return rc;
}