Tactility/Modules/lvgl-module/source/module.c

// SPDX-License-Identifier: Apache-2.0
#include <lvgl.h>
#include <string.h>
#include <tactility/module.h>
#include <tactility/lvgl_module.h>

extern const struct ModuleSymbol lvgl_module_symbols[];
error_t lvgl_arch_start();
error_t lvgl_arch_stop();

static bool is_running = false;
static bool is_configured = false;

struct LvglModuleConfig lvgl_module_config = {
    NULL,
    NULL,
    0,
    0,
#ifdef ESP_PLATFORM
    0,
#endif
};

void lvgl_module_configure(const struct LvglModuleConfig config) {
    is_configured = true;
    memcpy(&lvgl_module_config, &config, sizeof(struct LvglModuleConfig));
}

static error_t start() {
    if (!is_configured) {
        return ERROR_INVALID_STATE;
    }

    if (is_running) {
        return ERROR_NONE;
    }

    error_t result = lvgl_arch_start();
    if (result == ERROR_NONE) {
        is_running = true;
    }

    return result;
}

static error_t stop() {
    if (!is_running) {
        return ERROR_NONE;
    }

    error_t error = lvgl_arch_stop();
    if (error == ERROR_NONE) {
        is_running = false;
    }

    return error;
}

bool lvgl_is_running() {
    return is_running;
}

enum UiDensity lvgl_get_ui_density(void) {
    return TT_LVGL_UI_DENSITY;
}

struct Module lvgl_module = {
    .name = "lvgl",
    .start = start,
    .stop = stop,
    .symbols = (const struct ModuleSymbol*)lvgl_module_symbols,
    .internal = NULL
};