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42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
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/*
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* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "hal/brownout_hal.h"
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#include "soc/rtc_cntl_struct.h"
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#include "soc/rtc_cntl_reg.h"
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#include "esp_attr.h"
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#include "hal/regi2c_ctrl.h"
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#include "soc/regi2c_brownout.h"
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void brownout_hal_config(const brownout_hal_config_t *cfg)
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{
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REGI2C_WRITE_MASK(I2C_BOD, I2C_BOD_THRESHOLD, cfg->threshold);
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typeof(RTCCNTL.brown_out) brown_out_reg = {
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.int_wait = 0x002,
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.close_flash_ena = cfg->flash_power_down,
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.pd_rf_ena = cfg->rf_power_down,
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.rst_wait = 0x3ff,
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.rst_ena = cfg->reset_enabled,
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.ena = cfg->enabled,
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.rst_sel = 1,
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};
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// If brownout software control is enabled, hw ana reset should be disabled, because it always has the highest priority.
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RTCCNTL.brown_out.ana_rst_en = false;
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RTCCNTL.brown_out = brown_out_reg;
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}
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void brownout_hal_intr_enable(bool enable)
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{
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RTCCNTL.int_ena.rtc_brown_out = enable;
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}
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IRAM_ATTR void brownout_hal_intr_clear(void)
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{
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RTCCNTL.int_clr.rtc_brown_out = 1;
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}
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