diff options
Diffstat (limited to 'rbutil/sansapatcher/sansapatcher.c')
| -rw-r--r-- | rbutil/sansapatcher/sansapatcher.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/rbutil/sansapatcher/sansapatcher.c b/rbutil/sansapatcher/sansapatcher.c index 2d44e75303..bc03108930 100644 --- a/rbutil/sansapatcher/sansapatcher.c +++ b/rbutil/sansapatcher/sansapatcher.c @@ -34,7 +34,9 @@ #include "bootimg_e200.h" #endif /* The offset of the MI4 image header in the firmware partition */ -#define PPMI_OFFSET 0x80000 +#define PPMI_OFFSET 0x80000 +#define NVPARAMS_OFFSET 0x780000 +#define NVPARAMS_SIZE (0x80000-0x200) extern int verbose; @@ -882,7 +884,26 @@ int sansa_update_of(struct sansa_t* sansa, char* filename) fprintf(stderr,"[ERR] Short write in sansa_update_of\n"); return -1; } - + + /* Step 4 - zero out the nvparams section - we have to do this or we end up + with multiple copies of the nvparams data and don't know which one to + work with for the database rebuild disabling trick in our bootloader */ + if (strcmp(sansa->targetname,"e200") == 0) { + printf("[INFO] Resetting Original Firmware settings\n"); + if (sansa_seek(sansa, sansa->start+NVPARAMS_OFFSET+0x200) < 0) { + fprintf(stderr,"[ERR] Seek to 0x%08llx in sansa_update_of failed.\n", + sansa->start+NVPARAMS_OFFSET+0x200); + return -1; + } + + memset(sectorbuf,0,NVPARAMS_SIZE); + n=sansa_write(sansa, sectorbuf, NVPARAMS_SIZE); + if (n < NVPARAMS_SIZE) { + fprintf(stderr,"[ERR] Short write in sansa_update_of\n"); + return -1; + } + } + return 0; } |