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100 lines
2.5 KiB
100 lines
2.5 KiB
#include <freertos/FreeRTOS.h>
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#include <freertos/task.h>
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#include <freertos/timers.h>
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#include "gui.h"
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#include "nokia.h"
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#include "liquid.h"
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#include "drawing.h"
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static void gui_thread(void *arg);
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static void gui_tick(TimerHandle_t xTimer);
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TaskHandle_t hGuiThread = NULL;
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static TimerHandle_t hTicker = NULL;
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void gui_init() {
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printf("GUI init\n");
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LCD_setup();
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LCD_setContrast(48);
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int rv = xTaskCreate(gui_thread, "gui", 4096, NULL, 6, &hGuiThread);
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assert (rv == pdPASS);
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hTicker = xTimerCreate(
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"gui_tick", /* name */
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pdMS_TO_TICKS(10), /* period/time */
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pdTRUE, /* auto reload */
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(void*)0, /* timer ID */
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gui_tick); /* callback */
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assert(hTicker != NULL);
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xTimerStart(hTicker, portMAX_DELAY);
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}
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static void gui_tick(TimerHandle_t xTimer) {
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xTaskNotify(hGuiThread, 0b10000, eSetBits);
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}
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/**
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* Notification API:
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*
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* 0b1 - knob CW
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* 0b10 - knowb CCW
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* 0b100 - button released
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* 0b1000 - button pressed
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* 0b10000 - ticker event
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*
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* @param arg
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*/
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static void __attribute__((noreturn)) gui_thread(void *arg) {
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struct Liquid *liquid = Liquid_start();
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uint32_t last_wheel_time = 0;
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while (1) {
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uint32_t value = 0;
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xTaskNotifyWait(0, ULONG_MAX, &value, pdMS_TO_TICKS(10));
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bool want_repaint = false;
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if (value & 0b10000) {
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// TICK
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want_repaint |= Liquid_handleTick(liquid);
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}
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if (value & 0b1000) {
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want_repaint |= Liquid_handleInput(liquid, InputEvent_Button(1));
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} else if (value & 0b100) {
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want_repaint |= Liquid_handleInput(liquid, InputEvent_Button(0));
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}
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if (value & 0b11) {
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uint32_t time = xTaskGetTickCount();
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uint32_t increment = 1;
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if (last_wheel_time != 0) {
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uint32_t ela = time - last_wheel_time;
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if (ela < pdMS_TO_TICKS(20)) {
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increment = 25;
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} else if (ela < pdMS_TO_TICKS(35)) {
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increment = 10;
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} else if (ela < pdMS_TO_TICKS(75)) {
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increment = 5;
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}
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}
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last_wheel_time = time;
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if (value & 0b01) {
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want_repaint |= Liquid_handleInput(liquid, InputEvent_Wheel(increment));
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}
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if (value & 0b10) {
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want_repaint |= Liquid_handleInput(liquid, InputEvent_Wheel(-increment));
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}
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}
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if (want_repaint) {
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Liquid_paint(liquid);
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}
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}
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}
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