284 lines
8.6 KiB
C
284 lines
8.6 KiB
C
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/****************************************************************************
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Copyright(c) 2019 by Aerospace C.Power (Chongqing) Microelectronics. ALL RIGHTS RESERVED.
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This Information is proprietary to Aerospace C.Power (Chongqing) Microelectronics and MAY NOT
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be copied by any method or incorporated into another program without
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the express written consent of Aerospace C.Power. This Information or any portion
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thereof remains the property of Aerospace C.Power. The Information contained herein
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is believed to be accurate and Aerospace C.Power assumes no responsibility or
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liability for its use in any way and conveys no license or title under
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any patent or copyright and makes no representation or warranty that this
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Information is free from patent or copyright infringement.
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****************************************************************************/
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#ifndef _IOT_GPIO_API_H_
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#define _IOT_GPIO_API_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \defgroup Gpio_APIs Gpio APIs
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* @brief Gpio APIs
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*
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*
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*
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*/
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/** @addtogroup Gpio_APIs
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* @{
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*/
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/**
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* @brief GPIO mode.
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*/
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enum gpio_mode
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{
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GPIO_INPUT, /**< GPIO for INPUT using. */
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GPIO_OUTPUT, /**< GPIO for OUTPUT using. */
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GPIO_INTERRUPT, /**< GPIO for INTERRUPT using */
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GPIO_INVALID /**< Invalid value */
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};
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/**
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* @brief GPIO pull mode.
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*/
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enum gpio_pull_mode
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{
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GPIO_PULL_NONE,
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GPIO_PULL_UP,
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GPIO_PULL_DOWN,
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GPIO_PULL_UP_DOWN
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};
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/**
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* @brief GPIO opendrain mode.
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*/
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enum gpio_drain_mode
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{
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GPIO_DRAIN_NORMAL,
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GPIO_DRAIN_ONLY_1,
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GPIO_DRAIN_ONLY_0,
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};
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/**
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* @brief Modes of interrupt. Only when gpio_mode set as GPIO_INTERRUPT,
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* int_mode is available.
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*/
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enum gpio_int_trigger_mode
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{
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GPIO_INT_DISABLE, /**< Disable the interrupt. */
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GPIO_INT_LEVEL_HIGH, /**< Interrupt triggered when the voltage of this GPIO
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stays in HIGH. */
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GPIO_INT_LEVEL_LOW, /**< Interrupt triggered when the voltage of this GPIO
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stays in LOW. */
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GPIO_INT_EDGE_RAISING, /**< Interrupt triggered when the voltage of this
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GPIO switchs from LOW to HIGH. */
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GPIO_INT_EDGE_FALLING, /**< Interrupt triggered when the voltage of this
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GPIO switchs from HIGH to LOW. */
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GPIO_INT_EDGE_BOTH, /**< Interrupt triggered when the voltage of this GPIO
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switchs to HIGH or LOW . */
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GPIO_INT_INVALID /**< Invalid value */
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};
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/**
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* @brief Config by app when calling iot_gpio_interrupt_config.
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*
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*/
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enum gpio_int_func_mode {
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GPIO_INT_FUNC_DISABLE_AUTOSTOP, /**< GPIO interrupt function disable
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auto stop */
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GPIO_INT_FUNC_ENABLE_AUTOSTOP, /**< GPIO interrupt function enable
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autostop */
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GPIO_INT_FUNC_GET_TICKS, /**< GPIO interrupt function get timer
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tick counts*/
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GPIO_INT_FUNC_INVALID /**< Invalid value */
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};
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/**
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* @brief iot_gpio_isr_func(), the type of ISR function, called by share-task.
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* @param arg1: The argument from ISR, registered by interrupt-config.
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*/
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typedef void (*iot_gpio_isr_func)(int);
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/**
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* @brief iot_gpio_open_as_input() - Open an GPIO as inputting.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @see iot_gpio_open_as_output()
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* @see iot_gpio_open_as_interrupt()
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_open_as_input(int gpio);
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/**
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* @brief iot_gpio_open_as_output() - Open an GPIO as outputting.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @see iot_gpio_open_as_input()
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* @see iot_gpio_open_as_interrupt()
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_open_as_output(int gpio);
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/**
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* @brief iot_gpio_open_as_interrupt() - Open an GPIO as interrupting.
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* When an GPIO opened as interrupting,
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* iot_gpio_interrupt_config() should be called .
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @see iot_gpio_open_as_input()
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* @see iot_gpio_open_as_output()
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_open_as_interrupt(int gpio);
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/**
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* @brief iot_gpio_interrupt_config() - This function should be called after
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* iot_gpio_open_as_interrupt() to configure an interrupt.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @param mode: Interrupt trigger mode.@see enum int_trigger_mode.
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* @param isr: Interrupt call-back function. It's a function pionter
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* See iot_gpio_isr_func.
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* @param arg: Argument for isr.
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* @param func_mode: Interrupt function mode when interrupt occurs.
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* See enum gpio_int_func_mode.
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_interrupt_config
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(int gpio, enum gpio_int_trigger_mode mode, iot_gpio_isr_func isr, int arg,
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int func_mode);
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/**
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* @brief iot_gpio_interrupt_enable() - Enable or disable the interrupt.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @param enable: Disable the interrupt if 'enable' is 0, otherwase enable it.
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* @see iot_gpio_interrupt_config()
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_interrupt_enable(int gpio, int enable);
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/**
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* @brief iot_gpio_value_get() - Get the logic value of an GPIO.An GPIO will be
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* configured as inputting if this GPIO was outputting before
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* iot_gpio_value_get() is called.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @see ERR_FAIL
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* @return 1 -- Logic high..
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* @return 0 -- Logic low.
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* @return ERR_FAIL -- Operation failed.
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*/
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int iot_gpio_value_get(int gpio);
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/**
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* @brief iot_gpio_value_set() - Set the logic value of an GPIO.
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* An GPIO will be configured as outputting if this GPIO was inputting before
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* iot_gpio_value_set() is called.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @param value: Set the logic value as low if 'value' is 0, otherwase as high.
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_value_set(int gpio, int value);
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/**
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* @brief iot_gpio_output_value_get() - Get the logic value of an GPIO output.
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* An GPIO will be configured as outputting if this GPIO was inputting before
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* iot_gpio_output_value_get() is called.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @param pvalue: The pointer to store logic value of this gpio.
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_output_value_get(int gpio, int *pvalue);
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/**
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* @brief iot_gpio_set_opendrain_mode() - Set the open drain of an GPIO.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @param drain_mode:Open drain mode.@see enum gpio_drain_mode.
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_set_opendrain_mode(int gpio, enum gpio_drain_mode drain_mode);
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/**
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* @brief iot_gpio_switch_io_mode_dynamic() - Switch input or output mode of GPIO.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @param gpio_mode:GPIO mode.@see enum gpio_mode.
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_switch_io_mode_dynamic(int gpio, enum gpio_mode mode);
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/**
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* @brief iot_gpio_set_pull_mode() - Set the pull up/down of an GPIO.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @param pull_mode:Pull up/down.@see enum gpio_pull_mode.
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_set_pull_mode(int gpio, enum gpio_pull_mode pull_mode);
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/**
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* @brief iot_gpio_get_trigger_ticks() -
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* for customer get cur_timer_cnt when triggered gpio interrupt
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @return cur_timer_cnt when gpio interrupt triggered by zero cross detect
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*/
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unsigned int iot_gpio_get_trigger_ticks(int gpio);
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/**
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* @brief iot_gpio_close() - Close an GPIO.Interrupt will be disabled if this
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* GPIO opened as interrupt.
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* @param gpio: GPIO-NO that starts from 'Zero'.
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* @see iot_gpio_open_as_input()
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* @see iot_gpio_open_as_output()
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* @see iot_gpio_open_as_interrupt()
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* @see ERR_FAIL
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* @see ERR_OK
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_close(int gpio);
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/**
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* @brief iot_gpio_module_init() - initializes GPIO module,both ext and inner IO
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* (The extended IO chip provides an IO signal to indicate
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* whether the extended IO is interrupted or not.)
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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int iot_gpio_module_init();
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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