diff options
Diffstat (limited to 'chip/host/flash.c')
| -rw-r--r-- | chip/host/flash.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/chip/host/flash.c b/chip/host/flash.c index fac8620b38..892e4067a9 100644 --- a/chip/host/flash.c +++ b/chip/host/flash.c @@ -15,14 +15,20 @@ char __host_flash[CONFIG_FLASH_PHYSICAL_SIZE]; uint8_t __host_flash_protect[PHYSICAL_BANKS]; +/* Override this function to make flash erase/write operation fail */ +test_mockable int flash_pre_op(void) +{ + return EC_SUCCESS; +} + static int flash_check_protect(int offset, int size) { int first_bank = offset / CONFIG_FLASH_BANK_SIZE; - int last_bank = DIV_ROUND_UP(offset + size + 1, + int last_bank = DIV_ROUND_UP(offset + size, CONFIG_FLASH_BANK_SIZE); int bank; - for (bank = first_bank; bank <= last_bank; ++bank) + for (bank = first_bank; bank < last_bank; ++bank) if (__host_flash_protect[bank]) return 1; return 0; @@ -61,6 +67,9 @@ int flash_physical_write(int offset, int size, const char *data) { ASSERT((size & (CONFIG_FLASH_WRITE_SIZE - 1)) == 0); + if (flash_pre_op() != EC_SUCCESS) + return EC_ERROR_UNKNOWN; + if (flash_check_protect(offset, size)) return EC_ERROR_ACCESS_DENIED; @@ -74,6 +83,9 @@ int flash_physical_erase(int offset, int size) { ASSERT((size & (CONFIG_FLASH_ERASE_SIZE - 1)) == 0); + if (flash_pre_op() != EC_SUCCESS) + return EC_ERROR_UNKNOWN; + if (flash_check_protect(offset, size)) return EC_ERROR_ACCESS_DENIED; |