Style: change comments to be c-style
parent
a5a81a6d5c
commit
ff9c2a22f1
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@ -45,17 +45,16 @@
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#include "pixel_operator_24.c"
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/* Inputs */
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// Clock In
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/* Controls */
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#define GPIO_MUTATE_BTN (9) // Mutate Button In
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#define GPIO_TAP_TEMPO_BTN (10) // Tap Tempo Button In
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#define GPIO_MUTATE_BTN (9) /* Mutate Button In */
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#define GPIO_TAP_TEMPO_BTN (10) /* Tap Tempo Button In */
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static QueueHandle_t control_event_queue = NULL;
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/* Outputs */
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#define GPIO_CLK_OUT (7) // Clock Out
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#define GPIO_GATE_OUT (8) // Gate CV Out
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#define GPIO_CLK_OUT (7) /* Clock Out */
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#define GPIO_GATE_OUT (8) /* Gate CV Out */
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/* LED GPIO Pins */
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#define LEDC_CLK_OUT (5)
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@ -79,9 +78,9 @@ static QueueHandle_t control_event_queue = NULL;
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static gptimer_handle_t tap_tempo_timer = NULL;
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static gptimer_handle_t gate_timer = NULL;
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static const uint16_t DEBOUNCE_TIMEOUT = 10; // polling period length when debouncing in ms
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static uint64_t debounce_time = 0; // system time of last intterupt
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static uint8_t btn_state = 1; // state of gpio last recorded
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static const uint16_t DEBOUNCE_TIMEOUT = 10; /* polling period length when debouncing in ms */
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static uint64_t debounce_time = 0; /* system time of last intterupt */
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static uint8_t btn_state = 1; /* state of gpio last recorded */
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portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED;
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@ -110,7 +109,7 @@ static void update_bpm(void) {
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lv_label_set_text_fmt(bpm_label, "BPM: %d", current_bpm);
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}
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// updates the sequence for the GUI display
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/* updates the sequence for the GUI display */
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static void update_seq(uint8_t *sequence) {
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char seq_str[seq_len];
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for (uint8_t i = 0; i < seq_len; i++) {
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@ -133,7 +132,7 @@ static void randomize_seq(uint8_t *sequence) {
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static void mutate_seq(uint8_t *sequence) {
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ESP_LOGI(TAG, "Mutating Sequence");
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// pick a step to mutate
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/* pick a step to mutate */
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uint8_t step = esp_random() % SEQ_MAX_LEN;
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if (sequence[step] == 1) {
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sequence[step] = 0;
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@ -145,13 +144,13 @@ static void mutate_seq(uint8_t *sequence) {
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/* Handle tap tempo button presses */
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static void tap_tempo_handler(){
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// check the count to see if we have already started the timer
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/* check the count to see if we have already started the timer */
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uint64_t count;
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ESP_ERROR_CHECK(gptimer_get_raw_count(tap_tempo_timer, &count));
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if (count == 0) { // the timer hasn't started yet
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if (count == 0) { /* the timer hasn't started yet */
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ESP_ERROR_CHECK(gptimer_start(tap_tempo_timer));
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ESP_LOGI(TAG, "Starting tap tempo monitoring");
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} else { // stop the timer and calc bpm
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} else { /* stop the timer and calc bpm */
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ESP_ERROR_CHECK(gptimer_stop(tap_tempo_timer));
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ESP_ERROR_CHECK(gptimer_set_raw_count(tap_tempo_timer, 0));
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current_bpm = ms_to_bpm(count / 1000);
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@ -163,8 +162,8 @@ static void tap_tempo_handler(){
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static void IRAM_ATTR gpio_isr_handler(void* arg) {
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uint32_t gpio_num = (uint32_t)arg;
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portENTER_CRITICAL_ISR(&mux);
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debounce_time = xTaskGetTickCount(); // set time of interrupt
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btn_state = gpio_get_level(gpio_num); // set state
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debounce_time = xTaskGetTickCount(); /* set time of interrupt */
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btn_state = gpio_get_level(gpio_num); /* set state */
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portEXIT_CRITICAL_ISR(&mux);
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xQueueSendFromISR(control_event_queue, &gpio_num, NULL);
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}
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@ -174,14 +173,14 @@ static void control_event_handler(void* arg) {
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uint8_t last_btn_state;
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uint64_t last_debounce_time;
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while (1) {
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// save these so we can make comparisons
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/* save these so we can make comparisons */
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portENTER_CRITICAL_ISR(&mux);
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last_btn_state = btn_state;
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last_debounce_time = debounce_time;
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portEXIT_CRITICAL_ISR(&mux);
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uint8_t current_state = gpio_get_level(gpio_num);
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if (xQueueReceive(control_event_queue, &gpio_num, portMAX_DELAY)) {
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// Check if interrupt triggered stays the same for long enough
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/* Check if interrupt triggered stays the same for long enough */
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if ((current_state == last_btn_state) &&
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(xTaskGetTickCount() - last_debounce_time > DEBOUNCE_TIMEOUT)) {
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ESP_LOGI(TAG, "Handling control from GPIO %" PRIu32, gpio_num);
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@ -199,27 +198,27 @@ static void control_event_handler(void* arg) {
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}
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static void controls_init(void) {
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// install gpio isr hservice
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/* install gpio isr hservice */
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gpio_install_isr_service(0);
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// Setup Mutate Button
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/* Setup Mutate Button */
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gpio_reset_pin(GPIO_MUTATE_BTN);
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gpio_set_direction(GPIO_MUTATE_BTN, GPIO_MODE_INPUT);
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gpio_set_intr_type(GPIO_MUTATE_BTN, GPIO_INTR_NEGEDGE);
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// Hook in handler for mutate button
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/* Hook in handler for mutate button */
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gpio_isr_handler_add(GPIO_MUTATE_BTN, gpio_isr_handler, (void*)GPIO_MUTATE_BTN);
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// Setup tap tempo Button
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/* Setup tap tempo Button */
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gpio_reset_pin(GPIO_TAP_TEMPO_BTN);
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gpio_set_direction(GPIO_TAP_TEMPO_BTN, GPIO_MODE_INPUT);
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gpio_set_intr_type(GPIO_TAP_TEMPO_BTN, GPIO_INTR_NEGEDGE);
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// Hook in handler for tap tempo button
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/* Hook in handler for tap tempo button */
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gpio_isr_handler_add(GPIO_TAP_TEMPO_BTN, gpio_isr_handler, (void *)GPIO_TAP_TEMPO_BTN);
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// Setup tap tempo timer
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/* Setup tap tempo timer */
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gptimer_config_t tap_tempo_timer_config = {
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.clk_src = GPTIMER_CLK_SRC_DEFAULT,
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.direction = GPTIMER_COUNT_UP,
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.resolution_hz = 1 * 1000 * 1000 // 1MHz; 1 tick = 1 µs
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.resolution_hz = 1 * 1000 * 1000 /* 1MHz; 1 tick = 1 µs */
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};
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ESP_ERROR_CHECK(gptimer_new_timer(&tap_tempo_timer_config, &tap_tempo_timer));
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ESP_ERROR_CHECK(gptimer_enable(tap_tempo_timer));
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@ -236,39 +235,39 @@ static void gate_off_alarm_cb(gptimer_handle_t timer, const gptimer_alarm_event_
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}
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static void gpio_init(void) {
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// Setup gpio control event queue
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/* Setup gpio control event queue */
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control_event_queue = xQueueCreate(10, sizeof(uint32_t));
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// Setup Clock CV Output
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/* Setup Clock CV Output */
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gpio_reset_pin(GPIO_CLK_OUT);
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gpio_set_direction(GPIO_CLK_OUT, GPIO_MODE_OUTPUT);
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// Setup Gate CV Output
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/* Setup Gate CV Output */
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gpio_reset_pin(GPIO_GATE_OUT);
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gpio_set_direction(GPIO_GATE_OUT, GPIO_MODE_OUTPUT);
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// Setup gate timer
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/* Setup gate timer */
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gptimer_config_t cv_out_timer_config = {
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.clk_src = GPTIMER_CLK_SRC_DEFAULT,
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.direction = GPTIMER_COUNT_UP,
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.resolution_hz = 1 * 1000 * 1000 // 1MHz; 1 tick = 1 µs
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.resolution_hz = 1 * 1000 * 1000 /* 1MHz; 1 tick = 1 µs */
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};
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ESP_ERROR_CHECK(gptimer_new_timer(&cv_out_timer_config, &gate_timer));
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// Configure gate timer alarm
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/* Configure gate timer alarm */
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gptimer_alarm_config_t cv_off_alarm_config = {
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.alarm_count = 20 * 1000, // 20ms @ 1MHz
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.alarm_count = 20 * 1000, /* 20ms @ 1MHz */
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.reload_count = 0,
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.flags.auto_reload_on_alarm = true
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};
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ESP_ERROR_CHECK(gptimer_set_alarm_action(gate_timer, &cv_off_alarm_config));
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//register gate timer callback
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/* Register gate timer callback */
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gptimer_event_callbacks_t clk_cbs = {.on_alarm = gate_off_alarm_cb};
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ESP_ERROR_CHECK(gptimer_register_event_callbacks(gate_timer, &clk_cbs, NULL));
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ESP_ERROR_CHECK(gptimer_enable(gate_timer));
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}
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static void ledc_init(void) {
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// Setup LEDC PWM timer configuration
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/* Setup LEDC PWM timer configuration */
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ledc_timer_config_t ledc_timer = {
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.speed_mode = LEDC_LOW_SPEED_MODE,
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.timer_num = LEDC_TIMER_0,
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@ -278,7 +277,7 @@ static void ledc_init(void) {
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};
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ESP_ERROR_CHECK(ledc_timer_config(&ledc_timer));
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// Setup Clock LED
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/* Setup Clock LED */
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ledc_channel_config_t ledc_clk_channel = {
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.channel = LEDC_CHANNEL_0,
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.gpio_num = LEDC_CLK_OUT,
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@ -290,7 +289,7 @@ static void ledc_init(void) {
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};
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ESP_ERROR_CHECK(ledc_channel_config(&ledc_clk_channel));
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// Setup Gate LED
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/* Setup Gate LED */
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ledc_channel_config_t ledc_gate_channel = {
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.channel = LEDC_CHANNEL_1,
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.gpio_num = LEDC_GATE_OUT,
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@ -330,7 +329,7 @@ static void lvgl_increase_tick(void *arg) {
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static void display_init(void) {
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ESP_LOGI(TAG, "Initialing LCD");
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// Configure backlight
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/* Configure backlight */
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ledc_channel_config_t ledc_lcd_bk_light_channel = {
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.channel = LEDC_CHANNEL_2,
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.gpio_num = LCD_BK_LIGHT_PIN,
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@ -342,7 +341,7 @@ static void display_init(void) {
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};
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ESP_ERROR_CHECK(ledc_channel_config(&ledc_lcd_bk_light_channel));
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// Setup SPI Bus
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/* Setup SPI Bus */
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spi_bus_config_t spi_cfg = {
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.sclk_io_num = LCD_SCLK_PIN,
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.mosi_io_num = LCD_MOSI_PIN,
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@ -353,7 +352,7 @@ static void display_init(void) {
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};
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ESP_ERROR_CHECK(spi_bus_initialize(SPI2_HOST, &spi_cfg, SPI_DMA_CH_AUTO));
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// Setup Panel IO
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/* Setup Panel IO */
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static lv_disp_drv_t disp_drv;
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esp_lcd_panel_io_handle_t lcd_io_handle = NULL;
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esp_lcd_panel_io_spi_config_t lcd_spi_config = {
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@ -369,7 +368,7 @@ static void display_init(void) {
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};
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ESP_ERROR_CHECK(esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)SPI2_HOST, &lcd_spi_config, &lcd_io_handle));
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// Setup ili9341 panel driver
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/* Setup ili9341 panel driver */
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esp_lcd_panel_handle_t lcd_handle = NULL;
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esp_lcd_panel_dev_config_t lcd_config = {
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.reset_gpio_num = LCD_RST_PIN,
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@ -380,22 +379,22 @@ static void display_init(void) {
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ESP_ERROR_CHECK(esp_lcd_panel_reset(lcd_handle));
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ESP_ERROR_CHECK(esp_lcd_panel_init(lcd_handle));
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// Turn on the panel
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/* Turn on the panel */
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ESP_ERROR_CHECK(esp_lcd_panel_disp_on_off(lcd_handle, true));
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ESP_LOGI(TAG, "Initalizing LVGL");
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lv_init();
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// Allocate draw buffers
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/* Allocate draw buffers */
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lv_color_t *buf1 =
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heap_caps_malloc(LCD_H_RES * 80 * sizeof(lv_color_t), MALLOC_CAP_DMA);
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lv_color_t *buf2 =
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heap_caps_malloc(LCD_H_RES * 80 * sizeof(lv_color_t), MALLOC_CAP_DMA);
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// Initialize draw buffers
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/* Initialize draw buffers */
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static lv_disp_draw_buf_t disp_buf;
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lv_disp_draw_buf_init(&disp_buf, buf1, buf2, LCD_H_RES * 80);
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// Initialize display driver then register it
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/* Initialize display driver then register it */
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lv_disp_drv_init(&disp_drv);
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disp_drv.hor_res = LCD_H_RES;
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disp_drv.ver_res = LCD_V_RES;
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@ -405,7 +404,7 @@ static void display_init(void) {
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disp_drv.user_data = lcd_handle;
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lv_disp_t *disp = lv_disp_drv_register(&disp_drv);
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// Install LVGL tick timer
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/* Install LVGL tick timer */
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esp_timer_handle_t lvgl_tick_timer = NULL;
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const esp_timer_create_args_t lvgl_tick_timer_args = {
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.callback = &lvgl_increase_tick,
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@ -416,49 +415,49 @@ static void display_init(void) {
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}
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static void gui_create(void) {
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// Setup flex layout
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/* Setup flex layout */
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/* lv_obj_t * seq_row = lv_obj_create(lv_scr_act()); */
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/* lv_obj_set_size(seq_row, 300, 70); */
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/* lv_obj_set_flex_flow(seq_row, LV_FLEX_FLOW_ROW); */
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// Initialize style
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/* Initialize style */
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static lv_style_t gui_style;
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lv_style_init(&gui_style);
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// Set background color
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/* Set background color */
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/* lv_style_set_bg_color(&gui_style, lv_color_hex(0xa1e5d0)); */
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// Load Font https://www.dafont.com/pixel-operator.font
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// Converted with https://lvgl.io/tools/fontconverter
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/* Load Font https://www.dafont.com/pixel-operator.font */
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/* Converted with https://lvgl.io/tools/fontconverter */
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LV_FONT_DECLARE(pixel_operator_24);
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// Set the font in the style
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/* Set the font in the style */
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lv_style_set_text_font(&gui_style, &pixel_operator_24);
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lv_style_set_text_color(&gui_style, lv_color_hex(0x000000));
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// Create and set Title lable text
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/* Create and set Title lable text */
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lv_obj_t * title_label = lv_label_create(lv_scr_act());
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lv_label_set_text(title_label, "ESP32 Sequencer\n");
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lv_obj_add_style(title_label, &gui_style, LV_STATE_DEFAULT);
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lv_obj_align(title_label, LV_ALIGN_TOP_MID, 0, 5);
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// Create and set BPM lable text
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/* Create and set BPM lable text */
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bpm_label = lv_label_create(lv_scr_act());
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lv_label_set_text_fmt(bpm_label, "BPM: %d", current_bpm);
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lv_obj_add_style(bpm_label, &gui_style, LV_STATE_DEFAULT);
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lv_obj_align(bpm_label, LV_ALIGN_BOTTOM_LEFT, 5, -5);
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// Create sequence text area
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/* Create sequence text area */
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sequence_label = lv_label_create(lv_scr_act());
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lv_label_set_text(sequence_label, "oooooooo");
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lv_obj_add_style(sequence_label, &gui_style, LV_STATE_DEFAULT);
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lv_obj_align(sequence_label, LV_ALIGN_CENTER, 0, 0);
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// Create sequence tracker text area
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/* Create sequence tracker text area */
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sequence_tracker = lv_label_create(lv_scr_act());
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lv_obj_add_style(sequence_tracker, &gui_style, LV_STATE_DEFAULT);
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lv_label_set_text(sequence_tracker, "_ ");
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lv_obj_align(sequence_tracker, LV_ALIGN_CENTER, 0, 5); // slightly lower than main sequence
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lv_obj_align(sequence_tracker, LV_ALIGN_CENTER, 0, 5); /* slightly lower than main sequence */
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}
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static void gui_task(void *pvParameter) {
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@ -490,7 +489,7 @@ void app_main(void) {
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gui_create();
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xTaskCreatePinnedToCore(gui_task, "gui", 4096*2, NULL, 0, NULL, 1);
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// Start task to handle control events
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/* Start task to handle control events */
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xTaskCreate(control_event_handler, "control event handler", 2048, NULL, 10, NULL);
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/* Initialize Monitor LEDs */
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@ -503,7 +502,7 @@ void app_main(void) {
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while (1) {
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char tracker_str[seq_len];
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for (uint8_t step = 0; step < seq_len; step++) {
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// advance step tracker
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/* advance step tracker */
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if (step == 0) {
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tracker_str[seq_len - 1] = ' ';
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} else {
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@ -511,10 +510,10 @@ void app_main(void) {
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}
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tracker_str[step] = '_';
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// set the new sequence label
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/* set the new sequence label */
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lv_label_set_text(sequence_tracker, tracker_str);
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// if step has been set for sequence
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/* if step has been set for sequence */
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if (sequence[step] == 1) {
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pulse_cv(true);
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} else {
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