88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
///
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//
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// leds.h defines structs and functions for addressing an HD107s ledstrip over serial using the GPIO pins.
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//
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///
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#ifndef _potion_leds_h
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#define _potion_leds_h
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#include <FreeRTOS.h>
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#include <freertos/task.h>
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#include <freertos/semphr.h>
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#include "esp_system.h"
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typedef enum LedsSendStatus {
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LEDS_SEND_WAITING,
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LEDS_SEND_REQUESTED,
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LEDS_SENDING,
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} LedsSendStatus;
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typedef enum MoveEdgeAction {
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LEDS_EDGE_WRAP,
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LEDS_EDGE_REVERSE,
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LEDS_EDGE_STOP
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} MoveEdgeAction;
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// pack the struct to match exactly 8 * 4 = 32bits
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typedef struct __attribute__((__packed__)) LedComponents {
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// RGB component values
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uint8_t red;
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uint8_t green;
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uint8_t blue;
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uint8_t global; // global baseline brightness, highest 3 bits should always be ones
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} LedComponents;
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// union of components and their representation as a u32
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// allows for easier sending of data over serial
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typedef union Led {
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struct LedComponents components;
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uint32_t bits;
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} Led;
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// point on a gradient
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typedef struct GradientPoint {
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union Led led; // value of the led at this point
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int offset; // offset (measured in leds) from the beginning
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short movement; // direction of movement over time
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MoveEdgeAction edge_action; // what to do when movement hits an end of the strip
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} GradientPoint;
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typedef struct Gradient {
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struct GradientPoint points[16]; // array of gradient points, support at most 16 points in a gradient
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size_t points_len; // number of used gradient points
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float duration; // amount of time to allow this gradient to last
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// positive means an amount in second 0 or negative means indefinitely until further notice
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} Gradient;
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typedef struct LedThreadData {
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TaskHandle_t task;
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TaskFunction_t func;
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} LedThreadData;
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// buffer that will be written out to the led strip over serial
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extern uint32_t g_serial_out_buffer[122];
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// 120-long slice of the out buffer that represents the first few leds
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extern Led* g_leds;
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extern Gradient g_default_gradient;
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extern Gradient g_current_gradient;
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extern int g_leds_are_default;
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extern enum LedsSendStatus g_leds_send_state;
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extern SemaphoreHandle_t g_led_mutex;
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extern LedThreadData g_led_thread_data;
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#define CLOCK 4
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#define DATA 5
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extern void send_leds();
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extern void set_led_range(int start, int end, Led value);
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extern void leds_set_default_gradient(const Gradient* gradient);
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extern void leds_set_current_gradient(const Gradient* gradient, int defer_send);
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extern void leds_reset_gradient(int defer_send);
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extern void leds_thread();
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extern void leds_init();
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#endif // !_leds_h
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