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x1000: bootloader: add basic flash dump utility

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Change-Id: Id4ce0f00a78ef27399bdef6a7b32c23f89b9cb05
This commit is contained in:
Aidan MacDonald 2022-03-19 14:07:55 +00:00
parent ee68d9df8e
commit 0d21d80ca8
2 changed files with 83 additions and 0 deletions
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78
bootloader/x1000/utils.c
View file

@ -172,3 +172,81 @@ int load_uimage_flash(uint32_t addr, uint32_t length,
return handle;
}
int dump_flash(int fd, uint32_t addr, uint32_t length)
{
static char buf[8192];
int ret = 0;
nand_drv* ndrv = nand_init();
nand_lock(ndrv);
ret = nand_open(ndrv);
if(ret != NAND_SUCCESS) {
splashf(5*HZ, "NAND open failed\n");
nand_unlock(ndrv);
return ret;
}
while(length > 0) {
uint32_t count = MIN(length, sizeof(buf));
ret = nand_read_bytes(ndrv, addr, count, buf);
if(ret != NAND_SUCCESS) {
splashf(5*HZ, "Dump failed\nNAND I/O error");
goto out;
}
if(write(fd, buf, count) != (ssize_t)count) {
splashf(5*HZ, "Dump failed\nFile I/O error");
ret = -1;
goto out;
}
length -= count;
addr += count;
}
out:
nand_close(ndrv);
nand_unlock(ndrv);
return ret;
}
int dump_flash_file(const char* file, uint32_t addr, uint32_t length)
{
if(check_disk(true) != DISK_PRESENT)
return -1;
splashf(0, "Dumping...\n%s\n0x%08lx\n%lu bytes", file, addr, length);
int fd = open(file, O_WRONLY|O_CREAT|O_TRUNC);
if(fd < 0) {
splashf(5*HZ, "Cannot open file\n%s", file);
return -2;
}
int rc = dump_flash(fd, addr, length);
if(rc < 0) {
close(fd);
remove(file);
return -3;
}
splashf(5*HZ, "Dumped\n%s", file);
close(fd);
return 0;
}
void dump_of_player(void)
{
#ifdef OF_PLAYER_ADDR
dump_flash_file("/of_player.img", OF_PLAYER_ADDR, OF_PLAYER_LENGTH);
#endif
}
void dump_of_recovery(void)
{
#ifdef OF_RECOVERY_ADDR
dump_flash_file("/of_recovery.img", OF_RECOVERY_ADDR, OF_RECOVERY_LENGTH);
#endif
}

5
bootloader/x1000/x1000bootloader.h
View file

@ -167,6 +167,11 @@ int load_uimage_file(const char* filename,
int load_uimage_flash(uint32_t addr, uint32_t length,
struct uimage_header* uh, size_t* sizep);
int dump_flash(int fd, uint32_t addr, uint32_t length);
int dump_flash_file(const char* file, uint32_t addr, uint32_t length);
void dump_of_player(void);
void dump_of_recovery(void);
void recovery_menu(void) __attribute__((noreturn));
#endif /* __X1000BOOTLOADER_H__ */