89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
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#ifndef _DRIVER_TOUCHPAD_H
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#define _DRIVER_TOUCHPAD_H
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#include <stdint.h>
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#include "driver_i2c.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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//*****************************************************************************
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//
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// Macro Variables definitions
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//
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//*****************************************************************************
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#define __TOUCHPAD_RESET_SET() touchpad_reset_set()
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#define __TOUCHPAD_RESET_CLEAR() touchpad_reset_clear()
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#define __TOUCHPAD_DELAY_MS(counter) touchpad_delay_ms(counter)
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//*****************************************************************************
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//
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// Global Variables definitions
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//
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//*****************************************************************************
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extern I2C_HandleTypeDef i2c_touchpad_handle;
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//*****************************************************************************
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//
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// External function definitions
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//
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//*****************************************************************************
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/************************************************************************************
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* @fn touchpad_reset_set
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*
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* @brief Set touchpad driver RESET pin to HIGH, this function should be implemented by user..
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*/
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void touchpad_reset_set(void);
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/************************************************************************************
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* @fn touchpad_reset_clear
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*
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* @brief Set touchpad driver RESET pin to LOW, this function should be implemented by user.
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*/
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void touchpad_reset_clear(void);
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/************************************************************************************
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* @fn touchpad_delay_ms
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*
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* @brief Used in touchpad driver. co_delay_100us or vTaskDelay can be used for implementation
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* by user.
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*/
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void touchpad_delay_ms(uint32_t counter);
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/************************************************************************************
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* @fn touchpad_read
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*
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* @brief used to read data from touchpad, these data are update in interrupt
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*
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* @param x: current x position.
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* y: current y position.
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*
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* @return true: pressed and x, y value is valid; false: released
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*/
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bool touchpad_read(int16_t *x, int16_t *y);
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/************************************************************************************
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* @fn touchpad_init
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*
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* @brief used to init touchpad
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*/
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void touchpad_init(void);
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/************************************************************************************
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* @fn touchpad_sleep
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*
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* @brief touchpad go to sleep
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*/
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void touchpad_sleep(void);
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#ifdef __cplusplus
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}
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#endif
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#endif // _DRIVER_TOUCHPAD_H
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