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when brownout reset occurs，set the phy TX Power to the lowest

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zhangyanjiao
2018-07-25 17:28:56 +08:00
parent b01e87bbaf
commit 5425979932
3 changed files with 49 additions and 0 deletions
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36
components/esp32/phy_init.c
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@@ -531,6 +531,18 @@ static esp_err_t store_cal_data_to_nvs_handle(nvs_handle handle,
return err;
}
#if CONFIG_REDUCE_PHY_TX_POWER
static void esp_phy_reduce_tx_power(esp_phy_init_data_t* init_data)
{
uint8_t i;
for(i = 0; i < PHY_TX_POWER_NUM; i++) {
// LOWEST_PHY_TX_POWER is the lowest tx power
init_data->params[PHY_TX_POWER_OFFSET+i] = PHY_TX_POWER_LOWEST;
}
}
#endif
void esp_phy_load_cal_and_init(phy_rf_module_t module)
{
esp_phy_calibration_data_t* cal_data =
@@ -540,11 +552,30 @@ void esp_phy_load_cal_and_init(phy_rf_module_t module)
abort();
}
#if CONFIG_REDUCE_PHY_TX_POWER
const esp_phy_init_data_t* phy_init_data = esp_phy_get_init_data();
if (phy_init_data == NULL) {
ESP_LOGE(TAG, "failed to obtain PHY init data");
abort();
}
esp_phy_init_data_t* init_data = (esp_phy_init_data_t*) malloc(sizeof(esp_phy_init_data_t));
if (init_data == NULL) {
ESP_LOGE(TAG, "failed to allocate memory for phy init data");
abort();
}
memcpy(init_data, phy_init_data, sizeof(esp_phy_init_data_t));
if (esp_reset_reason() == ESP_RST_BROWNOUT) {
esp_phy_reduce_tx_power(init_data);
}
#else
const esp_phy_init_data_t* init_data = esp_phy_get_init_data();
if (init_data == NULL) {
ESP_LOGE(TAG, "failed to obtain PHY init data");
abort();
}
#endif
#ifdef CONFIG_ESP32_PHY_CALIBRATION_AND_DATA_STORAGE
esp_phy_calibration_mode_t calibration_mode = PHY_RF_CAL_PARTIAL;
@@ -571,7 +602,12 @@ void esp_phy_load_cal_and_init(phy_rf_module_t module)
esp_phy_rf_init(init_data, PHY_RF_CAL_FULL, cal_data, module);
#endif
#if CONFIG_REDUCE_PHY_TX_POWER
esp_phy_release_init_data(phy_init_data);
free(init_data);
#else
esp_phy_release_init_data(init_data);
#endif
free(cal_data); // PHY maintains a copy of calibration data, so we can free this
}