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Diffstat (limited to 'utils/meizu_dfu/meizu_dfu.c')
-rw-r--r--utils/meizu_dfu/meizu_dfu.c22
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