arch(draw): add parallel rendering architecture

BREAKING CHANGE

This is a huge update which introduces parallel rendering. lv_conf.h needs to be updated too.

src/osal/lv_freertos.h

@@ -0,0 +1,71 @@
+/**
+ * @file lv_freertos.h
+ *
+ */
+
+/**
+ * Copyright 2023 NXP
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef LV_FREERTOS_H
+#define LV_FREERTOS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#if LV_USE_OS == LV_OS_FREERTOS
+
+#include "FreeRTOS.h"
+#include "task.h"
+#include "semphr.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+typedef struct {
+    void * (*pvStartRoutine)(void *);     /**< Application thread function. */
+    void * xTaskArg;                      /**< Arguments for application thread function. */
+    TaskHandle_t xTaskHandle;             /**< FreeRTOS task handle. */
+    void * xReturn;                       /**< Return value of pvStartRoutine. */
+} lv_thread_t;
+
+typedef struct {
+    BaseType_t xIsInitialized;            /**< Set to pdTRUE if this mutex is initialized, pdFALSE otherwise. */
+    SemaphoreHandle_t xMutex;             /**< FreeRTOS mutex. */
+} lv_mutex_t;
+
+typedef struct {
+    BaseType_t
+    xIsInitialized;            /**< Set to pdTRUE if this condition variable is initialized, pdFALSE otherwise. */
+    SemaphoreHandle_t xCondWaitSemaphore; /**< Threads block on this semaphore in lv_thread_sync_wait. */
+    uint32_t ulWaitingThreads;            /**< The number of threads currently waiting on this condition variable. */
+    SemaphoreHandle_t xSyncMutex;         /**< Threads take this mutex before accessing the condition variable. */
+    BaseType_t xSyncSignal;               /**< Set to pdTRUE if the thread is signaled, pdFALSE otherwise. */
+} lv_thread_sync_t;
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**********************
+ *      MACROS
+ **********************/
+
+#endif /*LV_USE_OS == LV_OS_FREERTOS*/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /*LV_FREERTOS_H*/