49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
#ifdef USE_ESP8266
|
|
|
|
#include "core.h"
|
|
#include "esphome/core/defines.h"
|
|
#include "esphome/core/hal.h"
|
|
#include <Arduino.h>
|
|
|
|
namespace esphome {
|
|
|
|
// HAL functions live in hal.cpp. This file keeps only the ESP8266-specific
|
|
// firmware bootstrap (Tasmota OTA magic bytes, optional GPIO pre-init).
|
|
|
|
void force_link_symbols() {
|
|
// Tasmota uses magic bytes in the binary to check if an OTA firmware is compatible
|
|
// with their settings - ESPHome uses a different settings system (that can also survive
|
|
// erases). So set magic bytes indicating all tasmota versions are supported.
|
|
// This only adds 12 bytes of binary size, which is an acceptable price to pay for easier support
|
|
// for Tasmota.
|
|
// https://github.com/arendst/Tasmota/blob/b05301b1497942167a015a6113b7f424e42942cd/tasmota/settings.ino#L346-L380
|
|
// https://github.com/arendst/Tasmota/blob/b05301b1497942167a015a6113b7f424e42942cd/tasmota/i18n.h#L652-L654
|
|
const static uint32_t TASMOTA_MAGIC_BYTES[] PROGMEM = {0x5AA55AA5, 0xFFFFFFFF, 0xA55AA55A};
|
|
// Force link symbol by using a volatile integer (GCC attribute used does not work because of LTO)
|
|
volatile int x = 0;
|
|
x = TASMOTA_MAGIC_BYTES[x];
|
|
}
|
|
|
|
extern "C" void resetPins() { // NOLINT
|
|
// Added in framework 2.7.0
|
|
// usually this sets up all pins to be in INPUT mode
|
|
// however, not strictly needed as we set up the pins properly
|
|
// ourselves and this causes pins to toggle during reboot.
|
|
force_link_symbols();
|
|
|
|
#ifdef USE_ESP8266_EARLY_PIN_INIT
|
|
for (int i = 0; i < 16; i++) {
|
|
uint8_t mode = progmem_read_byte(&ESPHOME_ESP8266_GPIO_INITIAL_MODE[i]);
|
|
uint8_t level = progmem_read_byte(&ESPHOME_ESP8266_GPIO_INITIAL_LEVEL[i]);
|
|
if (mode != 255)
|
|
pinMode(i, mode); // NOLINT
|
|
if (level != 255)
|
|
digitalWrite(i, level); // NOLINT
|
|
}
|
|
#endif
|
|
}
|
|
|
|
} // namespace esphome
|
|
|
|
#endif // USE_ESP8266
|