264 lines
7.3 KiB
C
264 lines
7.3 KiB
C
#include "zh_avr_ac_dimmer.h"
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static zh_avr_ac_dimmer_init_config_t _init_config = {0};
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volatile static bool _is_dimmer_work = false;
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volatile static uint8_t _dimmer_value = 0;
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volatile static uint8_t _dimmer_count = 0;
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static bool _is_initialized = false;
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static uint8_t _prescaler = 0;
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static avr_err_t _zh_avr_ac_dimmer_validate_config(const zh_avr_ac_dimmer_init_config_t *config);
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static void _zh_avr_ac_dimmer_gpio_init(void);
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static avr_err_t _zh_avr_ac_dimmer_timer_init(void);
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avr_err_t zh_avr_ac_dimmer_init(const zh_avr_ac_dimmer_init_config_t *config)
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{
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ZH_ERROR_CHECK(_is_initialized == false, AVR_ERR_INVALID_STATE);
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avr_err_t err = _zh_avr_ac_dimmer_validate_config(config);
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ZH_ERROR_CHECK(err == AVR_OK, err);
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_init_config = *config;
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cli();
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_zh_avr_ac_dimmer_gpio_init();
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err = _zh_avr_ac_dimmer_timer_init();
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ZH_ERROR_CHECK(err == AVR_OK, err);
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sei();
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_is_initialized = true;
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return AVR_OK;
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}
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avr_err_t zh_avr_ac_dimmer_start(void)
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{
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ZH_ERROR_CHECK(_is_initialized == true, AVR_ERR_NOT_FOUND);
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_is_dimmer_work = true;
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return AVR_OK;
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}
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avr_err_t zh_avr_ac_dimmer_stop(void)
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{
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ZH_ERROR_CHECK(_is_initialized == true, AVR_ERR_NOT_FOUND);
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_is_dimmer_work = false;
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return AVR_OK;
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}
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avr_err_t zh_avr_ac_dimmer_set(uint8_t value)
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{
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ZH_ERROR_CHECK(_dimmer_value <= 100, AVR_ERR_INVALID_ARG);
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_dimmer_value = value;
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return AVR_OK;
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}
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void zh_avr_ac_dimmer_isr_handler(void)
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{
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uint8_t flag = false;
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switch (_init_config.zero_cross_port)
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{
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case AVR_PORTB:
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if ((PINB & (1 << _init_config.zero_cross_gpio)) == 0)
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{
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flag = true;
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}
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break;
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case AVR_PORTC:
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if ((PINC & (1 << _init_config.zero_cross_gpio)) == 0)
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{
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flag = true;
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}
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break;
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case AVR_PORTD:
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if ((PIND & (1 << _init_config.zero_cross_gpio)) == 0)
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{
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flag = true;
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}
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break;
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default:
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break;
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}
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if (_is_dimmer_work == true && flag == true)
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{
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if (_dimmer_value != 0)
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{
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if (_dimmer_value == 100)
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{
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switch (_init_config.triac_port)
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{
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case AVR_PORTB:
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PORTB |= (1 << _init_config.triac_gpio);
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_delay_us(5);
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PORTB &= ~(1 << _init_config.triac_gpio);
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break;
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case AVR_PORTC:
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PORTC |= (1 << _init_config.triac_gpio);
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_delay_us(5);
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PORTC &= ~(1 << _init_config.triac_gpio);
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case AVR_PORTD:
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PORTD |= (1 << _init_config.triac_gpio);
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_delay_us(5);
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PORTD &= ~(1 << _init_config.triac_gpio);
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break;
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default:
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break;
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}
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}
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else
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{
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TCNT0 = 0;
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TCCR0B |= _prescaler;
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TIMSK0 |= (1 << OCIE0A);
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}
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}
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}
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}
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static avr_err_t _zh_avr_ac_dimmer_validate_config(const zh_avr_ac_dimmer_init_config_t *config)
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{
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ZH_ERROR_CHECK(config != NULL, AVR_ERR_INVALID_ARG);
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ZH_ERROR_CHECK((config->zero_cross_gpio >= 0 && config->zero_cross_gpio <= 7), AVR_ERR_INVALID_ARG);
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ZH_ERROR_CHECK((config->triac_gpio >= 0 && config->triac_gpio <= 7), AVR_ERR_INVALID_ARG);
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ZH_ERROR_CHECK(config->zero_cross_port >= AVR_PORTB && config->zero_cross_port <= AVR_PORTD, AVR_ERR_INVALID_ARG);
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ZH_ERROR_CHECK(config->triac_port >= AVR_PORTB && config->triac_port <= AVR_PORTD, AVR_ERR_INVALID_ARG);
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ZH_ERROR_CHECK(config->ac_dimmer_frequency >= ZH_50HZ && config->ac_dimmer_frequency <= ZH_400HZ, AVR_ERR_INVALID_ARG);
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return AVR_OK;
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}
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static void _zh_avr_ac_dimmer_gpio_init(void)
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{
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switch (_init_config.zero_cross_port)
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{
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case AVR_PORTB:
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DDRB &= ~(1 << _init_config.zero_cross_gpio);
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PORTB |= (1 << _init_config.zero_cross_gpio);
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PCICR |= (1 << PCIE0);
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PCMSK0 |= (1 << _init_config.zero_cross_gpio);
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break;
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case AVR_PORTC:
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DDRC &= ~(1 << _init_config.zero_cross_gpio);
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PORTC |= (1 << _init_config.zero_cross_gpio);
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PCICR |= (1 << PCIE1);
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PCMSK1 |= (1 << _init_config.zero_cross_gpio);
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break;
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case AVR_PORTD:
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DDRD &= ~(1 << _init_config.zero_cross_gpio);
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PORTD |= (1 << _init_config.zero_cross_gpio);
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PCICR |= (1 << PCIE2);
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PCMSK2 |= (1 << _init_config.zero_cross_gpio);
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break;
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default:
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break;
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}
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switch (_init_config.triac_port)
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{
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case AVR_PORTB:
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DDRB |= (1 << _init_config.triac_gpio);
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PORTB &= ~(1 << _init_config.triac_gpio);
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break;
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case AVR_PORTC:
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DDRC |= (1 << _init_config.triac_gpio);
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PORTC &= ~(1 << _init_config.triac_gpio);
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break;
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case AVR_PORTD:
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DDRD |= (1 << _init_config.triac_gpio);
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PORTD &= ~(1 << _init_config.triac_gpio);
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break;
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default:
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break;
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}
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}
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static avr_err_t _zh_avr_ac_dimmer_timer_init(void)
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{
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TCCR0A |= (1 << WGM01);
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switch (F_CPU)
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{
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case 8000000:
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switch (_init_config.ac_dimmer_frequency)
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{
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case ZH_50HZ:
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OCR0A = 99;
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_prescaler = (1 << CS01);
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break;
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case ZH_60HZ:
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OCR0A = 82;
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_prescaler = (1 << CS01);
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break;
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case ZH_400HZ:
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OCR0A = 99;
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_prescaler = (1 << CS00);
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break;
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default:
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break;
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}
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break;
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case 16000000:
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switch (_init_config.ac_dimmer_frequency)
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{
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case ZH_50HZ:
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OCR0A = 24;
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_prescaler = (1 << CS01) | (1 << CS00);
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break;
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case ZH_60HZ:
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OCR0A = 165;
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_prescaler = (1 << CS01);
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break;
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case ZH_400HZ:
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OCR0A = 24;
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_prescaler = (1 << CS01);
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break;
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default:
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break;
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}
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break;
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case 20000000:
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switch (_init_config.ac_dimmer_frequency)
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{
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case ZH_50HZ:
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OCR0A = 249;
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_prescaler = (1 << CS01);
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break;
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case ZH_60HZ:
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OCR0A = 207;
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_prescaler = (1 << CS01);
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break;
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case ZH_400HZ:
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OCR0A = 249;
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_prescaler = (1 << CS00);
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break;
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default:
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break;
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}
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break;
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default:
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return AVR_ERR_INVALID_ARG;
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break;
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}
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return AVR_OK;
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}
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ISR(TIMER0_COMPA_vect)
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{
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++_dimmer_count;
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if (_dimmer_count == (100 - _dimmer_value))
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{
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_dimmer_count = 0;
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TCCR0B = 0;
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TIMSK0 = 0;
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switch (_init_config.triac_port)
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{
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case AVR_PORTB:
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PORTB |= (1 << _init_config.triac_gpio);
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_delay_us(5);
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PORTB &= ~(1 << _init_config.triac_gpio);
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break;
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case AVR_PORTC:
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PORTC |= (1 << _init_config.triac_gpio);
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_delay_us(5);
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PORTC &= ~(1 << _init_config.triac_gpio);
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case AVR_PORTD:
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PORTD |= (1 << _init_config.triac_gpio);
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_delay_us(5);
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PORTD &= ~(1 << _init_config.triac_gpio);
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break;
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default:
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break;
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}
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}
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} |