diff options
Diffstat (limited to 'utils/meizu_dfu/meizu_dfu.c')
| -rw-r--r-- | utils/meizu_dfu/meizu_dfu.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/utils/meizu_dfu/meizu_dfu.c b/utils/meizu_dfu/meizu_dfu.c index b7b1c43ef7..62c221eabc 100644 --- a/utils/meizu_dfu/meizu_dfu.c +++ b/utils/meizu_dfu/meizu_dfu.c @@ -16,6 +16,16 @@ #include <usb.h> +#define bswap_16(value) \ + ((((value) & 0xff) << 8) | ((value) >> 8)) + +#define bswap_32(value) \ + (((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \ + (uint32_t)bswap_16((uint16_t)((value) >> 16))) + +#define host_to_le32(_x) bswap_32(htonl(_x)) +#define host_to_le16(_x) bswap_16(htons(_x)) + void usage() { fprintf(stderr, "usage: meizu_dfu m3 <SST39VF800.dfu> <M3.EBN>\n"); @@ -82,6 +92,7 @@ void init_img(image_data_t *img, const char *filename, image_attr_t *attr) struct stat statbuf; char buf[BLOCK_SIZE]; uint32_t dfu_crc; + uint32_t le_len; printf("Reading %s...", filename); @@ -100,8 +111,15 @@ void init_img(image_data_t *img, const char *filename, image_attr_t *attr) } close(fd); + le_len = host_to_le32(img->len); // patch the data size in after the signature - memcpy(img->data + attr->pre_off + 4, &img->len, 4); + memcpy(img->data + attr->pre_off + 4, &le_len, 4); + + /* convert to little endian */ + attr->suf_dev = host_to_le16(attr->suf_dev); + attr->suf_prod = host_to_le16(attr->suf_prod); + attr->suf_ven = host_to_le16(attr->suf_ven); + attr->suf_dfu = host_to_le16(attr->suf_dfu); // append the suffix (excluding the checksum) memcpy(img->data + len, &attr->suf_dev, 2); @@ -111,7 +129,7 @@ void init_img(image_data_t *img, const char *filename, image_attr_t *attr) memcpy(img->data + len + 8, &attr->suf_sig, 3); memcpy(img->data + len + 11, &attr->suf_len, 1); - dfu_crc = crc32(img->data, len + 12, DFU_CRC_POLY, DFU_INIT_CRC); + dfu_crc = host_to_le32(crc32(img->data, len + 12, DFU_CRC_POLY, DFU_INIT_CRC)); memcpy(img->data + len + 12, &dfu_crc, 4); #if 0 |