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-rw-r--r--src/gos/freertos.c161
-rw-r--r--src/gos/freertos.h113
-rw-r--r--src/gos/sys_defs.h2
-rw-r--r--src/gos/sys_make.mk1
-rw-r--r--src/gos/sys_options.h9
-rw-r--r--src/gos/sys_rules.h4
6 files changed, 287 insertions, 3 deletions
diff --git a/src/gos/freertos.c b/src/gos/freertos.c
new file mode 100644
index 00000000..ce831a4c
--- /dev/null
+++ b/src/gos/freertos.c
@@ -0,0 +1,161 @@
+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ * http://ugfx.org/license.html
+ */
+
+/**
+ * @file src/gos/freertos.c
+ * @brief GOS FreeRTOS Operating System support.
+ */
+#include "gfx.h"
+#include <string.h>
+
+#if GFX_USE_OS_FREERTOS
+
+#if INCLUDE_vTaskDelay != 1
+ #error "GOS: INCLUDE_vTaskDelay must be defined in FreeRTOSConfig.h"
+#endif
+
+#if configUSE_MUTEXES != 1
+ #error "GOS: configUSE_MUTEXES must be defined in FreeRTOSConfig.h"
+#endif
+
+#if configUSE_COUNTING_SEMAPHORES != 1
+ #error "GOS: configUSE_COUNTING_SEMAPHORES must be defined in FreeRTOSConfig.h"
+#endif
+
+void _gosInit(void)
+{
+ // The user must call vTaskStartScheduler() himself before he calls gfxInit().
+}
+
+void _gosDeinit(void)
+{
+}
+
+void* gfxRealloc(void *ptr, size_t oldsz, size_t newsz)
+{
+ void *np;
+
+ if (newsz <= oldsz)
+ return ptr;
+
+ np = gfxAlloc(newsz);
+ if (!np)
+ return 0;
+
+ if (oldsz) {
+ memcpy(np, ptr, oldsz);
+ vPortFree(ptr);
+ }
+
+ return np;
+}
+
+void gfxSleepMilliseconds(delaytime_t ms)
+{
+ const portTickType ticks = ms / portTICK_PERIOD_MS;
+ vTaskDelay(ticks);
+}
+
+void gfxSleepMicroseconds(delaytime_t ms)
+{
+ const portTickType ticks = (ms / 1000) / portTICK_PERIOD_MS;
+
+ // delay milli seconds
+ vTaskDelay(ticks);
+
+ // microsecond resolution delay is not supported in FreeRTOS
+ // vUsDelay(ms%1000);
+}
+
+portTickType MS2ST(portTickType ms)
+{
+ return (ms / portTICK_PERIOD_MS);
+}
+
+void gfxSemInit(gfxSem* psem, semcount_t val, semcount_t limit)
+{
+ if (val > limit)
+ val = limit;
+
+ psem->counter = val;
+ psem->limit = limit;
+ psem->sem = xSemaphoreCreateCounting(limit,val);
+
+ vTraceSetSemaphoreName(psem->sem, "uGFXSema"); // for FreeRTOS+Trace debug
+}
+
+void gfxSemDestroy(gfxSem* psem)
+{
+ vSemaphoreDelete(psem->sem);
+}
+
+bool_t gfxSemWait(gfxSem* psem, delaytime_t ms)
+{
+ psem->counter--;
+
+ if (xSemaphoreTake(psem->sem, MS2ST(ms)) == pdPASS)
+ return TRUE;
+
+ psem->counter++;
+
+ return FALSE;
+}
+
+bool_t gfxSemWaitI(gfxSem* psem)
+{
+ portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
+
+ psem->counter--;
+
+ if (xSemaphoreTakeFromISR(psem->sem,&xHigherPriorityTaskWoken) == pdTRUE)
+ return TRUE;
+
+ psem->counter++;
+
+ return FALSE;
+}
+
+void gfxSemSignal(gfxSem* psem)
+{
+ taskENTER_CRITICAL();
+
+ if (psem->counter < psem->limit) {
+ psem->counter++;
+ xSemaphoreGive(psem->sem);
+ }
+
+ taskYIELD();
+ taskEXIT_CRITICAL();
+}
+
+void gfxSemSignalI(gfxSem* psem)
+{
+ portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
+
+ if (psem->counter < psem->limit) {
+ psem->counter++;
+ xSemaphoreGiveFromISR(psem->sem,&xHigherPriorityTaskWoken);
+ }
+}
+
+gfxThreadHandle gfxThreadCreate(void *stackarea, size_t stacksz, threadpriority_t prio, DECLARE_THREAD_FUNCTION((*fn),p), void *param)
+{
+ xTaskHandle task = NULL;
+ stacksz = (size_t)stackarea;
+
+ if (stacksz < configMINIMAL_STACK_SIZE)
+ stacksz = configMINIMAL_STACK_SIZE;
+
+ if (xTaskCreate(fn, "uGFX_TASK", stacksz, param, prio, &task )!= pdPASS) {
+ for (;;);
+ }
+
+ return task;
+}
+
+#endif /* GFX_USE_OS_FREERTOS */
+/** @} */
diff --git a/src/gos/freertos.h b/src/gos/freertos.h
new file mode 100644
index 00000000..7fa9ee4f
--- /dev/null
+++ b/src/gos/freertos.h
@@ -0,0 +1,113 @@
+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ * http://ugfx.org/license.html
+ */
+
+/**
+ * @file src/gos/freertos.h
+ * @brief GOS - Operating System Support header file for FreeRTOS.
+ */
+
+#ifndef _GOS_FREERTOS_H
+#define _GOS_FREERTOS_H
+
+#if GFX_USE_OS_FREERTOS
+
+#include "FreeRTOS.h"
+#include "FreeRTOSConfig.h"
+#include "semphr.h"
+#include "task.h"
+
+/*===========================================================================*/
+/* Type definitions */
+/*===========================================================================*/
+
+/**
+ * bool_t,
+ * int8_t, uint8_t,
+ * int16_t, uint16_t,
+ * int32_t, uint32_t,
+ * size_t
+ * TRUE, FALSE
+ * are already defined by FreeRTOS
+ */
+#define TIME_IMMEDIATE 0
+#define TIME_INFINITE ((delaytime_t)-1)
+typedef int8_t bool_t;
+typedef uint32_t delaytime_t;
+typedef portTickType systemticks_t;
+typedef int32_t semcount_t;
+typedef void threadreturn_t;
+typedef portBASE_TYPE threadpriority_t;
+
+#define MAX_SEMAPHORE_COUNT ((semcount_t)(((unsigned long)((semcount_t)(-1))) >> 1))
+#define LOW_PRIORITY 0
+#define NORMAL_PRIORITY configMAX_PRIORITIES/2
+#define HIGH_PRIORITY configMAX_PRIORITIES-1
+
+/* FreeRTOS will allocate the stack when creating the thread, so pass the size instead of a working area */
+#define DECLARE_THREAD_STACK(name, sz) size_t *name = (size_t *)sz
+#define DECLARE_THREAD_FUNCTION(fnName, param) threadreturn_t fnName(void *param)
+portTickType MS2ST(portTickType ms);
+
+typedef struct {
+ xSemaphoreHandle sem;
+ semcount_t limit;
+ semcount_t counter;
+} gfxSem;
+
+typedef xSemaphoreHandle gfxMutex;
+typedef xTaskHandle* gfxThreadHandle;
+
+/*===========================================================================*/
+/* Function declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define gfxHalt(msg) {}
+#define gfxExit() {}
+#define gfxAlloc(sz) pvPortMalloc(sz)
+#define gfxFree(ptr) vPortFree(ptr)
+#define gfxYield() taskYIELD()
+#define gfxSystemTicks() xTaskGetTickCount()
+#define gfxMillisecondsToTicks(ms) MS2ST(ms)
+#define gfxSystemLock() {}
+#define gfxSystemUnlock() {}
+static inline void gfxMutexInit(xSemaphoreHandle *s)
+{
+ *s = xSemaphoreCreateMutex();
+ vTraceSetMutexName(*s,"uGFXMutex"); // for FreeRTOS+Trace debug
+}
+#define gfxMutexDestroy(pmutex) vSemaphoreDelete(*pmutex)
+#define gfxMutexEnter(pmutex) xSemaphoreTake(*pmutex,portMAX_DELAY)
+#define gfxMutexExit(pmutex) xSemaphoreGive(*pmutex)
+
+void *gfxRealloc(void *ptr, size_t oldsz, size_t newsz);
+void gfxSleepMilliseconds(delaytime_t ms);
+void gfxSleepMicroseconds(delaytime_t ms);
+
+void gfxSemInit(gfxSem* psem, semcount_t val, semcount_t limit);
+void gfxSemDestroy(gfxSem* psem);
+bool_t gfxSemWait(gfxSem* psem, delaytime_t ms);
+bool_t gfxSemWaitI(gfxSem* psem);
+void gfxSemSignal(gfxSem* psem);
+void gfxSemSignalI(gfxSem* psem);
+#define gfxSemCounterI(psem) ((psem)->counter)
+#define gfxSemCounter(psem) ((psem)->counter)
+gfxThreadHandle gfxThreadCreate(void *stackarea, size_t stacksz, threadpriority_t prio, DECLARE_THREAD_FUNCTION((*fn),p), void *param);
+
+#define gfxThreadWait(thread) {} // never used, not imlpemented
+#define gfxThreadMe() {} // never used, not implemented
+#define gfxThreadClose(thread) {}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GFX_USE_OS_FREERTOS */
+#endif /* _GOS_CHIBIOS_H */
diff --git a/src/gos/sys_defs.h b/src/gos/sys_defs.h
index 0fd162dc..aba96df5 100644
--- a/src/gos/sys_defs.h
+++ b/src/gos/sys_defs.h
@@ -441,6 +441,8 @@
*/
#elif GFX_USE_OS_CHIBIOS
#include "src/gos/chibios.h"
+#elif GFX_USE_OS_FREERTOS
+ #include "src/gos/freertos.h"
#elif GFX_USE_OS_WIN32
#include "src/gos/win32.h"
#elif GFX_USE_OS_LINUX
diff --git a/src/gos/sys_make.mk b/src/gos/sys_make.mk
index 9db29fe2..8ef22121 100644
--- a/src/gos/sys_make.mk
+++ b/src/gos/sys_make.mk
@@ -1,4 +1,5 @@
GFXSRC += $(GFXLIB)/src/gos/chibios.c \
+ $(GFXLIB)/src/gos/freertos.c \
$(GFXLIB)/src/gos/win32.c \
$(GFXLIB)/src/gos/linux.c \
$(GFXLIB)/src/gos/osx.c \
diff --git a/src/gos/sys_options.h b/src/gos/sys_options.h
index ae9916ad..90a5bc91 100644
--- a/src/gos/sys_options.h
+++ b/src/gos/sys_options.h
@@ -28,6 +28,13 @@
#define GFX_USE_OS_CHIBIOS FALSE
#endif
/**
+ * @brief Use FreeRTOS
+ * @details Defaults to FALSE
+ */
+ #ifndef GFX_USE_OS_FREERTOS
+ #define GFX_USE_OS_FREERTOS FALSE
+ #endif
+ /**
* @brief Use Win32
* @details Defaults to FALSE
*/
@@ -35,7 +42,7 @@
#define GFX_USE_OS_WIN32 FALSE
#endif
/**
- * @brief Use a linux based system running X11
+ * @brief Use a linux based system running X11
* @details Defaults to FALSE
*/
#ifndef GFX_USE_OS_LINUX
diff --git a/src/gos/sys_rules.h b/src/gos/sys_rules.h
index 390e8116..ff4a1ecb 100644
--- a/src/gos/sys_rules.h
+++ b/src/gos/sys_rules.h
@@ -16,14 +16,14 @@
#ifndef _GOS_RULES_H
#define _GOS_RULES_H
-#if !GFX_USE_OS_CHIBIOS && !GFX_USE_OS_WIN32 && !GFX_USE_OS_LINUX && !GFX_USE_OS_OSX && !GFX_USE_OS_RAW32
+#if !GFX_USE_OS_CHIBIOS && !GFX_USE_OS_WIN32 && !GFX_USE_OS_LINUX && !GFX_USE_OS_OSX && !GFX_USE_OS_RAW32 && !GFX_USE_OS_FREERTOS
#if GFX_DISPLAY_RULE_WARNINGS
#warning "GOS: No Operating System has been defined. ChibiOS (GFX_USE_OS_CHIBIOS) has been turned on for you."
#endif
#undef GFX_USE_OS_CHIBIOS
#define GFX_USE_OS_CHIBIOS TRUE
#endif
-#if GFX_USE_OS_CHIBIOS + GFX_USE_OS_WIN32 + GFX_USE_OS_LINUX + GFX_USE_OS_OSX + GFX_USE_OS_RAW32 != 1 * TRUE
+#if GFX_USE_OS_CHIBIOS + GFX_USE_OS_WIN32 + GFX_USE_OS_LINUX + GFX_USE_OS_OSX + GFX_USE_OS_RAW32 + GFX_USE_OS_FREERTOS != 1 * TRUE
#error "GOS: More than one operation system has been defined as TRUE."
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-11 09:33:29 +0000