63 lines
2.9 KiB
C
63 lines
2.9 KiB
C
#pragma once
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// #include "FreeRTOS.h"
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// #include "semphr.h"
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#include "avr_err.h"
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#include "stdbool.h"
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#include "avr/interrupt.h"
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#include "avr/pgmspace.h"
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#define ZH_AVR_AC_DIMMER_INIT_CONFIG_DEFAULT() \
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{ \
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.task_priority = configMAX_PRIORITIES, \
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.stack_size = 124, \
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.queue_size = 1, \
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.a_gpio_number = 0, \
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.b_gpio_number = 0, \
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.pullup = false, \
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.encoder_min_value = -100, \
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.encoder_max_value = 100, \
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.encoder_step = 1, \
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.encoder_number = 0}
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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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typedef struct // Structure for initial initialization of AC dimmer.
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{
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uint8_t task_priority; // Task priority for the PCF8574 expander isr processing. @note It is not recommended to set a value less than configMAX_PRIORITIES.
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uint8_t stack_size; // Stack size for task for the PCF8574 expander isr processing processing. @note The minimum size is 124 byte.
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uint8_t i2c_address; // Expander I2C address.
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bool p0_gpio_work_mode; // Expander GPIO PO work mode. True for input, false for output.
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bool p1_gpio_work_mode; // Expander GPIO P1 work mode. True for input, false for output.
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bool p2_gpio_work_mode; // Expander GPIO P2 work mode. True for input, false for output.
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bool p3_gpio_work_mode; // Expander GPIO P3 work mode. True for input, false for output.
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bool p4_gpio_work_mode; // Expander GPIO P4 work mode. True for input, false for output.
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bool p5_gpio_work_mode; // Expander GPIO P5 work mode. True for input, false for output.
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bool p6_gpio_work_mode; // Expander GPIO P6 work mode. True for input, false for output.
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bool p7_gpio_work_mode; // Expander GPIO P7 work mode. True for input, false for output.
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uint8_t interrupt_gpio; // Interrupt GPIO. @attention Must be same for all PCF8574 expanders.
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uint8_t interrupt_port; // Interrupt port.
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} zh_avr_pcf8574_init_config_t;
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/**
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* @brief Initialize PCF8574 expander.
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*
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* @param[in] config Pointer to PCF8574 initialized configuration structure. Can point to a temporary variable.
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* @param[out] handle Pointer to unique PCF8574 handle.
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*
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* @attention I2C driver must be initialized first.
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*
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* @note Before initialize the expander recommend initialize zh_avr_pcf8574_init_config_t structure with default values.
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*
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* @code zh_avr_pcf8574_init_config_t config = ZH_AVR_PCF8574_INIT_CONFIG_DEFAULT() @endcode
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*
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* @return AVR_OK if success or an error code otherwise.
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*/
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avr_err_t zh_avr_pcf8574_init(const zh_avr_pcf8574_init_config_t *config, zh_avr_pcf8574_handle_t *handle);
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#ifdef __cplusplus
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}
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#endif |