diff --git a/src/lib/esp32idfDimmer.c b/src/lib/esp32idfDimmer.c new file mode 100644 index 0000000..e66ff9a --- /dev/null +++ b/src/lib/esp32idfDimmer.c @@ -0,0 +1,363 @@ + +#include "esp32idfDimmer.h" + +static const char *TAG = "Esp32idfDimmer"; + +int pulseWidth = 2; +volatile int current_dim = 0; +int all_dim = 3; +int rise_fall = true; +char user_zero_cross = '0'; +int debug_signal_zc = 0; +bool flagDebug = false; + +static int toggleCounter = 0; +static int toggleReload = 25; +volatile bool _initDone = false; +volatile int _steps = 0; + +static dimmertyp *dimmer[ALL_DIMMERS]; +volatile bool firstSetup = false; +volatile uint16_t dimPower[ALL_DIMMERS]; +volatile gpio_num_t dimOutPin[ALL_DIMMERS]; +volatile gpio_num_t dimZCPin[ALL_DIMMERS]; +volatile uint16_t zeroCross[ALL_DIMMERS]; +volatile DIMMER_MODE_typedef dimMode[ALL_DIMMERS]; +volatile ON_OFF_typedef dimState[ALL_DIMMERS]; +volatile uint16_t dimCounter[ALL_DIMMERS]; +static uint16_t dimPulseBegin[ALL_DIMMERS]; +volatile uint16_t togMax[ALL_DIMMERS]; +volatile uint16_t togMin[ALL_DIMMERS]; +volatile bool togDir[ALL_DIMMERS]; + +/* timer configurations */ +timer_config_t m_timer_config; + +dimmertyp *createDimmer(gpio_num_t user_dimmer_pin, gpio_num_t zc_dimmer_pin) +{ + if (current_dim >= ALL_DIMMERS) + { + return NULL; + } + current_dim++; + dimmer[current_dim - 1] = malloc(sizeof(dimmertyp)); + dimmer[current_dim - 1]->current_num = current_dim - 1; + dimmer[current_dim - 1]->toggle_state = false; + + dimPulseBegin[current_dim - 1] = 1; + dimOutPin[current_dim - 1] = user_dimmer_pin; + dimZCPin[current_dim - 1] = zc_dimmer_pin; + dimCounter[current_dim - 1] = 0; + zeroCross[current_dim - 1] = 0; + dimMode[current_dim - 1] = NORMAL_MODE; + togMin[current_dim - 1] = 0; + togMax[current_dim - 1] = 1; + // Return the pointer + return dimmer[current_dim - 1]; +} + +#define TIMER_DIVIDER 80 // Hardware timer clock divider +#define TIMER_SCALE (TIMER_BASE_CLK / TIMER_DIVIDER) // convert counter value to seconds + +void config_timer(int ACfreq) +{ + ESP_LOGI(TAG, "Timer configuration - start"); + /*System timer startup has been done*/ + if (_initDone) + { + ESP_LOGW(TAG, "Timer configuration - timer already configured"); + return; + } + + memset(&m_timer_config, 0, sizeof(m_timer_config)); + + /* Prepare configuration */ + timer_config_t m_timer_config = + { + .alarm_en = TIMER_ALARM_DIS, + .counter_en = TIMER_PAUSE, + .counter_dir = TIMER_COUNT_UP, + .auto_reload = TIMER_AUTORELOAD_EN, + .divider = TIMER_DIVIDER, + }; + + /*self regulation 50/60 Hz*/ + double m_calculated_interval = (1 / (double)(ACfreq * 2)) / 100; + ESP_LOGI(TAG, "Interval between wave calculated for frequency : %3dHz = %5f", ACfreq, m_calculated_interval); + ESP_LOGI(TAG, "Timer configuration - configure interrupt and timer"); + /* Configure the alarm value and the interrupt on alarm. */ + timer_init(TIMER_GROUP_0, TIMER_0, &m_timer_config); + timer_set_alarm_value(TIMER_GROUP_0, TIMER_0, TIMER_SCALE * m_calculated_interval); + timer_enable_intr(TIMER_GROUP_0, TIMER_0); + timer_isr_register(TIMER_GROUP_0, TIMER_0, onTimerISR, (void *)TIMER_0, ESP_INTR_FLAG_IRAM, NULL); + /* start timer */ + ESP_LOGI(TAG, "Timer configuration - start timer"); + timer_start(TIMER_GROUP_0, TIMER_0); + timer_set_alarm(TIMER_GROUP_0, TIMER_0, TIMER_ALARM_EN); + ESP_LOGI(TAG, "Timer configuration - completed"); +} + +/*Zero-crossing pin setting + *set as input + *set as pullup + *set its interrupt*/ +void ext_int_init(dimmertyp *ptr) +{ + ESP_LOGI(TAG, "Setting ZCPin : %3d as input", dimZCPin[ptr->current_num]); + ESP_LOGI(TAG, "Checking for previous declaration of zc input on the same gpio"); + /*Zero crossing*/ + bool alreadyInit = false; + for (int i = 0; i < ptr->current_num; i++) + { + if (dimZCPin[i] == dimZCPin[ptr->current_num]) + { + alreadyInit = true; + } + } + ESP_LOGI(TAG, "Already init = %3d", alreadyInit); + if (!alreadyInit) + { + gpio_set_direction(dimZCPin[ptr->current_num], GPIO_MODE_INPUT); + gpio_set_intr_type(dimZCPin[ptr->current_num], GPIO_INTR_NEGEDGE); + gpio_intr_enable(dimZCPin[ptr->current_num]); + gpio_install_isr_service(ESP_INTR_FLAG_DEFAULT); + gpio_isr_handler_add(dimZCPin[ptr->current_num], isr_ext, (void *)dimZCPin[ptr->current_num]); + } + ESP_LOGI(TAG, "Zero Cross interrupt configuration - completed"); + /*TRIAC command - configuration*/ + ESP_LOGI(TAG, "Triac command configuration"); + + gpio_set_direction(dimOutPin[ptr->current_num], GPIO_MODE_OUTPUT); + ESP_LOGI(TAG, "Triac command configuration - completed"); +} + +/*ISR debug region*/ +#if DEBUG_ISR_DIMMER == ISR_DEBUG_ON + +static xQueueHandle gpio_zero_cross_evt_queue = NULL; + +static void gpio_isr_zerocross_debug(void *arg) +{ + uint32_t io_num; + for (;;) + { + if (xQueueReceive(gpio_zero_cross_evt_queue, &io_num, portMAX_DELAY)) + { + ESP_LOGI(TAG, "Zero-cross trigger fired"); + } + } +} + +#endif + +/*ISR timer debug region*/ +#if DEBUG_ISR_TIMER == ISR_DEBUG_ON + +static xQueueHandle timer_event_queue = NULL; + +static void timer_isr_debug(void *arg) +{ + uint32_t io_num; + for (;;) + { + if (xQueueReceive(timer_event_queue, &io_num, portMAX_DELAY)) + { + printf("Timer interrupt event , counter = %5d \n", io_num); + } + } +} + +#endif + +void begin(dimmertyp *ptr, DIMMER_MODE_typedef DIMMER_MODE, ON_OFF_typedef ON_OFF, int FREQ) +{ + ESP_LOGI(TAG, "Dimmer - begin"); + dimMode[ptr->current_num] = DIMMER_MODE; + dimState[ptr->current_num] = ON_OFF; + +#if DEBUG_ISR_DIMMER == ISR_DEBUG_ON + if (!_initDone) + { + // create a queue to handle gpio event from isr + gpio_zero_cross_evt_queue = xQueueCreate(10, sizeof(uint32_t)); + // start gpio task + xTaskCreate(gpio_isr_zerocross_debug, "gpio_isr_debug", 2048, NULL, 10, NULL); + } +#endif + +#if DEBUG_ISR_TIMER == ISR_DEBUG_ON + if (!_initDone) + { + // create a queue to handle timer event + timer_event_queue = xQueueCreate(10, sizeof(uint32_t)); + // start gpio task + xTaskCreate(timer_isr_debug, "timer_isr_debug", 2048, NULL, 10, NULL); + } +#endif + + config_timer(FREQ); + ext_int_init(ptr); + + // init completed + _initDone = true; + ESP_LOGI(TAG, "Dimmer begin - completed"); +} + +void setPower(dimmertyp *ptr, int power) +{ + if (power >= 99) + { + power = 99; + } + dimPower[ptr->current_num] = power; + dimPulseBegin[ptr->current_num] = powerBuf[power]; + + vTaskDelay(1); +} + +int getPower(dimmertyp *ptr) +{ + if (dimState[ptr->current_num] == ON) + return dimPower[ptr->current_num]; + else + return 0; +} + +void setState(dimmertyp *ptr, ON_OFF_typedef ON_OFF) +{ + dimState[ptr->current_num] = ON_OFF; +} + +bool getState(dimmertyp *ptr) +{ + bool ret; + if (dimState[ptr->current_num] == ON) + ret = true; + else + ret = false; + return ret; +} + +void changeState(dimmertyp *ptr) +{ + if (dimState[ptr->current_num] == ON) + dimState[ptr->current_num] = OFF; + else + dimState[ptr->current_num] = ON; +} + +DIMMER_MODE_typedef getMode(dimmertyp *ptr) +{ + return dimMode[ptr->current_num]; +} + +void setMode(dimmertyp *ptr, DIMMER_MODE_typedef DIMMER_MODE) +{ + dimMode[ptr->current_num] = DIMMER_MODE; +} + +void toggleSettings(dimmertyp *ptr, int minValue, int maxValue) +{ + if (maxValue > 99) + { + maxValue = 99; + } + if (minValue < 1) + { + minValue = 1; + } + dimMode[ptr->current_num] = TOGGLE_MODE; + togMin[ptr->current_num] = powerBuf[maxValue]; + togMax[ptr->current_num] = powerBuf[minValue]; + + toggleReload = 50; +} + +static void IRAM_ATTR isr_ext(void *arg) +{ + +#if DEBUG_ISR_DIMMER == ISR_DEBUG_ON + uint32_t gpio_num = (uint32_t)arg; + xQueueSendFromISR(gpio_zero_cross_evt_queue, &gpio_num, NULL); +#endif + + for (int i = 0; i < current_dim; i++) + if (dimState[i] == ON) + { + zeroCross[i] = 1; + } +} + +static int k; +#if DEBUG_ISR_TIMER == ISR_DEBUG_ON +static int counter = 0; +#endif +/* Execution on timer event */ +static void IRAM_ATTR onTimerISR(void *para) +{ + /*Block needed to handle timer ISR*/ + timer_spinlock_take(TIMER_GROUP_0); + timer_group_clr_intr_status_in_isr(TIMER_GROUP_0, TIMER_0); +/*Give back spinlock at the end of the method*/ +/**********************************/ +#if DEBUG_ISR_TIMER == ISR_DEBUG_ON + counter++; + uint32_t info = (uint32_t)counter; + xQueueSendFromISR(timer_event_queue, &info, NULL); +#endif + + toggleCounter++; + for (k = 0; k < current_dim; k++) + { + if (zeroCross[k] == 1) + { + dimCounter[k]++; + + if (dimMode[k] == TOGGLE_MODE) + { + /***** + * TOGGLE DIMMING MODE + *****/ + if (dimPulseBegin[k] >= togMax[k]) + { + // if reach max dimming value + togDir[k] = false; // downcount + } + if (dimPulseBegin[k] <= togMin[k]) + { + // if reach min dimming value + togDir[k] = true; // upcount + } + if (toggleCounter == toggleReload) + { + if (togDir[k] == true) + dimPulseBegin[k]++; + else + dimPulseBegin[k]--; + } + } + + /***** + * DEFAULT DIMMING MODE (NOT TOGGLE) + *****/ + if (dimCounter[k] >= dimPulseBegin[k]) + { + gpio_set_level(dimOutPin[k], 1); + } + + if (dimCounter[k] >= (dimPulseBegin[k] + pulseWidth)) + { + gpio_set_level(dimOutPin[k], 0); + zeroCross[k] = 0; + dimCounter[k] = 0; + } + } + } + if (toggleCounter >= toggleReload) + toggleCounter = 1; + + /* After the alarm has been triggered + we need enable it again, so it is triggered the next time */ + timer_group_enable_alarm_in_isr(TIMER_GROUP_0, TIMER_0); + timer_spinlock_give(TIMER_GROUP_0); +} diff --git a/src/lib/esp32idfDimmer.h b/src/lib/esp32idfDimmer.h new file mode 100644 index 0000000..a9a0091 --- /dev/null +++ b/src/lib/esp32idfDimmer.h @@ -0,0 +1,87 @@ +#ifndef RBDDIMMER_H +#define RBDDIMMER_H + +#include +#include +#include +#include +#include "freertos/FreeRTOS.h" +#include "freertos/queue.h" +#include "driver/gpio.h" +#include "driver/periph_ctrl.h" +#include "driver/timer.h" +#include "freertos/task.h" +#include "math.h" +#include "esp_log.h" + +#define ALL_DIMMERS 50 + +/*ISR debug defines*/ +#define ISR_DEBUG_ON 1 +#define ISR_DEBUG_OFF 0 +/*Activate/Deactivate isr debug*/ +#define DEBUG_ISR_DIMMER ISR_DEBUG_OFF +/*If timer is too fast can lead to core 0 panic*/ +#define DEBUG_ISR_TIMER ISR_DEBUG_OFF + + + +static const uint8_t powerBuf[] = { + 100, 99, 98, 97, 96, 95, 94, 93, 92, 91, + 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, + 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, + 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, + 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, + 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, + 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, + 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, + 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, + 10, 9, 8, 7, 6, 5, 4, 3, 2, 1}; + +#define ESP_INTR_FLAG_DEFAULT 0 + +typedef enum +{ + NORMAL_MODE = 0, + TOGGLE_MODE = 1 +} DIMMER_MODE_typedef; + +typedef enum +{ + OFF = false, + ON = true +} ON_OFF_typedef; + +typedef struct dimmer +{ + int current_num; + int timer_num; + bool toggle_state; + int tog_current; + int steps; + uint16_t pulse_begin; + int dimmer_pin; + int tog_max; + int tog_min; + int zc_pin; +} dimmertyp; + +dimmertyp *createDimmer(gpio_num_t user_dimmer_pin, gpio_num_t zc_dimmer_pin); +void begin(dimmertyp *ptr, DIMMER_MODE_typedef DIMMER_MODE, ON_OFF_typedef ON_OFF, int FREQ); +void setPower(dimmertyp *ptr, int power); +int getPower(dimmertyp *ptr); +void setState(dimmertyp *ptr, ON_OFF_typedef ON_OFF); +bool getState(dimmertyp *ptr); +void changeState(dimmertyp *ptr); +void setMode(dimmertyp *ptr, DIMMER_MODE_typedef DIMMER_MODE); +DIMMER_MODE_typedef getMode(dimmertyp *ptr); +void toggleSettings(dimmertyp *ptr, int minValue, int maxValue); +void port_init(dimmertyp *ptr); +void config_timer(int freq); +void ext_int_init(dimmertyp *ptr); + +static void IRAM_ATTR isr_ext(void* arg); +static void IRAM_ATTR onTimerISR(void* arg); + + +#endif