Fixes and improvements (#620)

- Standardized keyboard input using Unicode-based key codes across supported devices and the simulator. Keyboards don't emit `LV_KEY_*` anymore.
- Refactored lilygo encoder driver into a reusable GPIO rotary encoder driver (see `Drivers/gpio-encoder-module/`). Added more features to the config file.
- Improved LVGL keyboard device management, including duplicate prevention and reliable reconnects.
- LVGL file mutex now registers with lvgl start/stop
- Improved LVGL startup/shutdown stability and memory allocation reliability.
- Increased simulator LVGL memory capacity and improved USB device-class handling.

Drivers/lilygo-module/include/lilygo/bindings/tpager_encoder.h

@@ -1,7 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0
-#pragma once
-
-#include <tactility/bindings/bindings.h>
-#include <lilygo/drivers/tpager_encoder.h>
-
-DEFINE_DEVICETREE(tpager_encoder, struct TpagerEncoderConfig)

Drivers/lilygo-module/include/lilygo/drivers/tpager_encoder.h

@@ -1,59 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0
-#pragma once
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <tactility/drivers/gpio.h>
-#include <tactility/error.h>
-#include <stdbool.h>
-#include <stdint.h>
-
-struct Device;
-struct DeviceType;
-
-struct TpagerEncoderConfig {
-    struct GpioPinSpec pin_a;
-    struct GpioPinSpec pin_b;
-    struct GpioPinSpec pin_enter;
-};
-
-/**
- * @brief API for the T-Lora Pager encoder wheel driver.
- * Reports raw, unscaled pulses: pulses-per-detent scaling and enter-press debounce are UI
- * concerns layered on top by the consumer, not something this driver knows about.
- */
-struct TpagerEncoderApi {
-    /**
-     * @brief Reads the accumulated pulse count since the last read, then resets it to zero.
-     * @param[in] device the encoder device
-     * @param[out] out_pulses accumulated quadrature pulses (positive/negative by direction)
-     * @retval ERROR_NONE when the operation was successful
-     */
-    error_t (*read_delta)(struct Device* device, int32_t* out_pulses);
-
-    /**
-     * @brief Gets whether the enter button is currently pressed.
-     * @param[in] device the encoder device
-     * @param[out] out_pressed true when pressed
-     * @retval ERROR_NONE when the operation was successful
-     */
-    error_t (*get_button_pressed)(struct Device* device, bool* out_pressed);
-};
-
-/**
- * @brief Reads the accumulated pulse count using the specified encoder device.
- */
-error_t tpager_encoder_read_delta(struct Device* device, int32_t* out_pulses);
-
-/**
- * @brief Gets whether the enter button is currently pressed on the specified encoder device.
- */
-error_t tpager_encoder_get_button_pressed(struct Device* device, bool* out_pressed);
-
-extern const struct DeviceType TPAGER_ENCODER_TYPE;
-
-#ifdef __cplusplus
-}
-#endif

Drivers/lilygo-module/include/lilygo/drivers/tpager_encoder_input.h

@@ -1,20 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0
-#pragma once
-
-#include <lvgl.h>
-
-namespace tpager_encoder {
-
-/**
- * @brief Initialize the encoder wheel as an LVGL input device, backed by the kernel
- * tpager_encoder driver.
- * @return LVGL input device pointer, or nullptr if the kernel device isn't found/started
- */
-lv_indev_t* init();
-
-/**
- * @brief Deinitialize the encoder wheel's LVGL input device.
- */
-void deinit();
-
-}