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59 lines
1.3 KiB
59 lines
1.3 KiB
#include "gui.h"
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#include "nokia.h"
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#include <freertos/FreeRTOS.h>
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#include <freertos/task.h>
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static void gui_thread(void *arg);
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TaskHandle_t hGuiThread = 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_clearDisplay(0);
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LCD_setStr("Hello World", 0, 0, 1);
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LCD_updateDisplay();
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int rv = xTaskCreate(gui_thread, "gui", 4096, NULL, 3, &hGuiThread);
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assert (rv == pdPASS);
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}
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static void __attribute__((noreturn)) gui_thread(void *arg) {
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uint32_t pos = 20;
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#define NMAX 60
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while (1) {
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uint32_t value;
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xTaskNotifyWait(0, ULONG_MAX, &value, portMAX_DELAY);
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printf("Knob event 0x%02x ", value);
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switch (value) {
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case 0b100:
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printf("PUSH |");
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break;
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case 0b010:
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printf("BACK |");
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if (pos == 0) {
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pos = NMAX;
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} else {
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pos--;
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}
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break;
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case 0b001:
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printf("FWD |");
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if (pos == NMAX) {
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pos = 0;
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} else {
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pos += 1;
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}
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break;
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}
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for (int i=0; i<pos; i++) {
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printf(" ");
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}
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printf("#\n");
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}
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}
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