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esp8266/modesp: Add flash_user_start() function. 

As we're looking towards adding OTA support, calculation of a FlashROM
area which can be used for filesystem (etc.) may become complex, so
introduce C function for that. So far it just hardcodes current value,
0x90000. In the future the function may be extended (and renamed) to
return the size of area too.
This commit is contained in:
Paul Sokolovsky 2016-10-24 01:03:17 +03:00
parent 266e4acdc2
commit e6af94d13b
2 changed files with 7 additions and 1 deletions
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6
esp8266/modesp.c
View File

@ -629,6 +629,11 @@ STATIC mp_obj_t esp_flash_size(void) {
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(esp_flash_size_obj, esp_flash_size);
STATIC mp_obj_t esp_flash_user_start(void) {
return MP_OBJ_NEW_SMALL_INT(0x90000);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(esp_flash_user_start_obj, esp_flash_user_start);
STATIC mp_obj_t esp_check_fw(void) {
MD5_CTX ctx;
uint32_t *sz_p = (uint32_t*)0x40208ffc;
@ -706,6 +711,7 @@ STATIC const mp_map_elem_t esp_module_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_flash_write), (mp_obj_t)&esp_flash_write_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_flash_erase), (mp_obj_t)&esp_flash_erase_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_flash_size), (mp_obj_t)&esp_flash_size_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_flash_user_start), (mp_obj_t)&esp_flash_user_start_obj },
#if MODESP_ESPCONN
{ MP_OBJ_NEW_QSTR(MP_QSTR_socket), (mp_obj_t)&esp_socket_type },
{ MP_OBJ_NEW_QSTR(MP_QSTR_getaddrinfo), (mp_obj_t)&esp_getaddrinfo_obj },

2
esp8266/modules/flashbdev.py
View File

@ -3,7 +3,7 @@ import esp
class FlashBdev:
SEC_SIZE = 4096
START_SEC = 0x90000 // SEC_SIZE
START_SEC = esp.flash_user_start() // SEC_SIZE
NUM_BLK = 0x6b
def __init__(self, blocks=NUM_BLK):