1 files changed, 71 insertions, 0 deletions
diff --git a/main/main.c b/main/main.c
new file mode 100644
index 0000000..36e7ed9
--- /dev/null
+++ b/main/main.c
@@ -0,0 +1,71 @@
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <freertos/queue.h>
+
+#include <driver/gpio.h>
+#include <esp_log.h>
+
+#include "epd.h"
+#include "util.h"
+#include "pocorgtfo21.h"
+
+#define IO_PG_PREV  GPIO_NUM_21
+#define IO_PG_NEXT  GPIO_NUM_22
+#define IO_INTR_FLAG_DEFAULT  0
+
+static const char* TAG = "app";
+
+static size_t page = 0;
+static QueueHandle_t gpio_evt_queue = NULL;
+
+static void gpio_task(void* arg)
+{
+	uint32_t io_num;
+
+	for(;;) {
+		if(xQueueReceive(gpio_evt_queue, &io_num, portMAX_DELAY)) {
+			if (io_num == IO_PG_NEXT && page < data_len - 1)
+				epd_draw(data[++page]);
+			else if (io_num == IO_PG_PREV && page > 0)
+				epd_draw(data[--page]);
+			else
+				delay_ms(500);
+			gpio_intr_enable(IO_PG_NEXT);
+			gpio_intr_enable(IO_PG_PREV);
+		}
+	}
+}
+
+static void gpio_isr_handler(void *arg)
+{
+	gpio_intr_disable(IO_PG_PREV);
+	gpio_intr_disable(IO_PG_NEXT);
+	uint32_t gpio_num = (uint32_t) arg;
+	xQueueSendFromISR(gpio_evt_queue, &gpio_num, NULL);
+}
+
+void app_main(void)
+{
+	epd_init();
+	ESP_LOGI(TAG, "initialized e-paper display");
+
+	gpio_config_t io_cfg = {
+		.pin_bit_mask = ((1ULL << IO_PG_PREV) | (1ULL << IO_PG_NEXT)),
+		.mode = GPIO_MODE_INPUT,
+		.pull_up_en = true,
+		.intr_type = GPIO_INTR_NEGEDGE
+	};
+	ESP_ERROR_CHECK(gpio_config(&io_cfg));
+
+	gpio_evt_queue = xQueueCreate(10, sizeof(uint32_t));
+	xTaskCreate(gpio_task, "gpio_task", 2048, NULL, 10, NULL);
+
+	gpio_install_isr_service(IO_INTR_FLAG_DEFAULT);
+	gpio_isr_handler_add(IO_PG_PREV, gpio_isr_handler, (void *) IO_PG_PREV);
+	gpio_isr_handler_add(IO_PG_NEXT, gpio_isr_handler, (void *) IO_PG_NEXT);
+
+	epd_clear();
+	delay_ms(500);
+	epd_draw(data[0]);
+}
+