M5Stack PaperS3 improvements and other bug fixes (#512)

Devices/m5stack-papers3/Source/Init.cpp

@@ -0,0 +1,48 @@
+#include <Tactility/Logger.h>
+#include <driver/gpio.h>
+
+static const auto LOGGER = tt::Logger("Paper S3");
+
+constexpr gpio_num_t VBAT_PIN = GPIO_NUM_3;
+constexpr gpio_num_t CHARGE_STATUS_PIN = GPIO_NUM_4;
+constexpr gpio_num_t USB_DETECT_PIN = GPIO_NUM_5;
+
+static bool powerOn() {
+    if (gpio_reset_pin(CHARGE_STATUS_PIN) != ESP_OK) {
+        LOGGER.error("Failed to reset CHARGE_STATUS_PIN");
+        return false;
+    }
+
+    if (gpio_set_direction(CHARGE_STATUS_PIN, GPIO_MODE_INPUT) != ESP_OK) {
+        LOGGER.error("Failed to set direction for CHARGE_STATUS_PIN");
+        return false;
+    }
+
+    if (gpio_reset_pin(USB_DETECT_PIN) != ESP_OK) {
+        LOGGER.error("Failed to reset USB_DETECT_PIN");
+        return false;
+    }
+
+    if (gpio_set_direction(USB_DETECT_PIN, GPIO_MODE_INPUT) != ESP_OK) {
+        LOGGER.error("Failed to set direction for USB_DETECT_PIN");
+        return false;
+    }
+
+    // VBAT_PIN is used as ADC input; only reset it here to clear any previous
+    // configuration. The ADC driver (ChargeFromAdcVoltage) configures it for ADC use.
+    if (gpio_reset_pin(VBAT_PIN) != ESP_OK) {
+        LOGGER.error("Failed to reset VBAT_PIN");
+        return false;
+    }
+    return true;
+}
+
+bool initBoot() {
+    LOGGER.info("Power on");
+    if (!powerOn()) {
+        LOGGER.error("Power on failed");
+        return false;
+    }
+
+    return true;
+}