esp-idf/components/soc/include/hal/rtc_io_hal.h

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2019-07-25 11:11:31 -04:00
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*******************************************************************************
* NOTICE
* The hal is not public api, don't use in application code.
* See readme.md in soc/include/hal/readme.md
******************************************************************************/
// The HAL layer for RTC IO master (common part)
#pragma once
#include "hal/rtc_io_ll.h"
#include <esp_err.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* Select the rtcio function.
*
* @note The RTC function must be selected before the pad analog function is enabled.
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @param func Select pin function.
*/
#define rtcio_hal_function_select(rtcio_num, func) rtcio_ll_function_select(rtcio_num, func)
/**
* Enable rtcio output.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_output_enable(rtcio_num) rtcio_ll_output_enable(rtcio_num)
/**
* Disable rtcio output.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_output_disable(rtcio_num) rtcio_ll_output_disable(rtcio_num)
/**
* Set RTCIO output level.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @param level 0: output low; ~0: output high.
*/
#define rtcio_hal_set_level(rtcio_num, level) rtcio_ll_set_level(rtcio_num, level)
/**
* Enable rtcio input.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_input_enable(rtcio_num) rtcio_ll_input_enable(rtcio_num)
/**
* Disable rtcio input.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_input_disable(rtcio_num) rtcio_ll_input_disable(rtcio_num)
/**
* Get RTCIO input level.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @return 0: input low; ~0: input high.
*/
#define rtcio_hal_get_level(rtcio_num) rtcio_ll_get_level(rtcio_num)
/**
* @brief Set RTC GPIO pad drive capability.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @param strength Drive capability of the pad. Range: 0 ~ 3.
*/
#define rtcio_hal_set_drive_capability(rtcio_num, strength) rtcio_ll_set_drive_capability(rtcio_num, strength)
/**
* @brief Get RTC GPIO pad drive capability.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @return Drive capability of the pad. Range: 0 ~ 3.
*/
#define rtcio_hal_get_drive_capability(rtcio_num) rtcio_ll_get_drive_capability(rtcio_num)
/**
* Set RTCIO output level.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @param level 0: output low; ~0: output high.
*/
#define rtcio_hal_set_level(rtcio_num, level) rtcio_ll_set_level(rtcio_num, level)
/**
* Get RTCIO input level.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @return 0: input low; ~0: input high.
*/
#define rtcio_hal_get_level(rtcio_num) rtcio_ll_get_level(rtcio_num)
/**
* Set RTC IO direction.
*
* Configure RTC IO direction, such as output only, input only,
* output and input.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @param mode IO direction.
*/
void rtcio_hal_set_direction(int rtcio_num, rtc_gpio_mode_t mode);
/**
* Set RTC IO direction in deep sleep or disable sleep status.
*
* NOTE: ESP32 support INPUT_ONLY mode.
* ESP32S2 support INPUT_ONLY, OUTPUT_ONLY, INPUT_OUTPUT mode.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @param mode IO direction.
*/
void rtcio_hal_set_direction_in_sleep(int rtcio_num, rtc_gpio_mode_t mode);
/**
* RTC GPIO pullup enable.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_pullup_enable(rtcio_num) rtcio_ll_pullup_enable(rtcio_num)
/**
* RTC GPIO pullup disable.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_pullup_disable(rtcio_num) rtcio_ll_pullup_disable(rtcio_num)
/**
* RTC GPIO pulldown enable.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_pulldown_enable(rtcio_num) rtcio_ll_pulldown_enable(rtcio_num)
/**
* RTC GPIO pulldown disable.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_pulldown_disable(rtcio_num) rtcio_ll_pulldown_disable(rtcio_num)
/**
* Enable force hold function for RTC IO pad.
*
* Enabling HOLD function will cause the pad to lock current status, such as,
* input/output enable, input/output value, function, drive strength values.
* This function is useful when going into light or deep sleep mode to prevent
* the pin configuration from changing.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_hold_enable(rtcio_num) rtcio_ll_force_hold_enable(rtcio_num)
/**
* Disable hold function on an RTC IO pad
*
* @note If disable the pad hold, the status of pad maybe changed in sleep mode.
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_hold_disable(rtcio_num) rtcio_ll_force_hold_disable(rtcio_num)
/**
* Enable force hold function for RTC IO pads.
*
* Enabling HOLD function will cause the pad to lock current status, such as,
* input/output enable, input/output value, function, drive strength values.
* This function is useful when going into light or deep sleep mode to prevent
* the pin configuration from changing.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_hold_all() rtcio_ll_force_hold_all()
/**
* Disable hold function on an RTC IO pads.
*
* @note If disable the pad hold, the status of pad maybe changed in sleep mode.
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_unhold_all() rtcio_ll_force_unhold_all()
/**
* Enable wakeup function and set wakeup type from light sleep status for rtcio.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
* @param type Wakeup on high level or low level.
*/
#define rtcio_hal_wakeup_enable(rtcio_num, type) rtcio_ll_wakeup_enable(rtcio_num, type)
/**
* Disable wakeup function from light sleep status for rtcio.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
#define rtcio_hal_wakeup_disable(rtcio_num) rtcio_ll_wakeup_disable(rtcio_num)
/**
* Helper function to disconnect internal circuits from an RTC IO
* This function disables input, output, pullup, pulldown, and enables
* hold feature for an RTC IO.
* Use this function if an RTC IO needs to be disconnected from internal
* circuits in deep sleep, to minimize leakage current.
*
* In particular, for ESP32-WROVER module, call
* rtc_gpio_isolate(GPIO_NUM_12) before entering deep sleep, to reduce
* deep sleep current.
*
* @param rtcio_num The index of rtcio. 0 ~ SOC_RTC_IO_PIN_COUNT.
*/
void rtcio_hal_isolate(int rtc_num);
#ifdef __cplusplus
}
#endif