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76 lines
1.6 KiB
76 lines
1.6 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_setContrast(60);
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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, 6, &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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bool btn = 0;
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#define NMAX 60
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while (1) {
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uint32_t value = 0;
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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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if (value & 0b1000) {
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// printf("PUSH ");
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btn = 1;
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} else if (value & 0b100) {
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btn = 0;
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}
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if (value & 0b01) {
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// printf("FWD ");
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if (pos == NMAX) {
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pos = 0;
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}
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else {
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pos += 1;
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}
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}
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if (value & 0b10) {
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// printf("BACK ");
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if (pos == 0) {
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pos = NMAX;
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}
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else {
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pos--;
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}
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}
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LCD_setRect(0, 15, 83, 35, 1, 1);
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char buf[10];
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sprintf(buf, "%3d %s", pos, btn?"BTN":"");
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LCD_setStr(buf, 2, 17, 0);
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LCD_updateDisplay();
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// printf(">");
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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("#");
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// for (int i=pos; i<NMAX; 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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