From 2ef393d35b579325666797b67969c6dc94d161f9 Mon Sep 17 00:00:00 2001
From: Winfred Lu <winfred.lu@gmail.com>
Date: Sun, 4 May 2014 22:52:58 +0800
Subject: [PATCH] Fix some typos and implement gfxSleepMilliseconds().

---
 src/gos/freertos.c    | 35 ++++++++++++++++-------------------
 src/gos/freertos.h    |  3 +--
 src/gos/sys_options.h | 12 +-----------
 3 files changed, 18 insertions(+), 32 deletions(-)

diff --git a/src/gos/freertos.c b/src/gos/freertos.c
index e3be4f28..ce831a4c 100644
--- a/src/gos/freertos.c
+++ b/src/gos/freertos.c
@@ -28,7 +28,11 @@
 
 void _gosInit(void)
 {
-	// The user must call vTaskStartScheduler() himself before he calls gfxInit(). 
+	// The user must call vTaskStartScheduler() himself before he calls gfxInit().
+}
+
+void _gosDeinit(void)
+{
 }
 
 void* gfxRealloc(void *ptr, size_t oldsz, size_t newsz)
@@ -52,30 +56,24 @@ void* gfxRealloc(void *ptr, size_t oldsz, size_t newsz)
 
 void gfxSleepMilliseconds(delaytime_t ms)
 {
-	// Implement this
+	const portTickType ticks = ms / portTICK_PERIOD_MS;
+	vTaskDelay(ticks);
 }
 
 void gfxSleepMicroseconds(delaytime_t ms)
 {
-	// Implement this
+	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)
 {
-	// Verify this
-
-	uint64_t	val;
-
-	if (configTICK_RATE_HZ == 1000) {	// gain time because no test to do in most case
-		return ms;
-	}
-
-	val = ms;
-	val *= configTICK_RATE_HZ;
-	val += 999;
-	val /= 1000;
-
-	return val;
+	return (ms / portTICK_PERIOD_MS);
 }
 
 void gfxSemInit(gfxSem* psem, semcount_t val, semcount_t limit)
@@ -152,7 +150,7 @@ gfxThreadHandle gfxThreadCreate(void *stackarea, size_t stacksz, threadpriority_
 	if (stacksz < configMINIMAL_STACK_SIZE)
 		stacksz = configMINIMAL_STACK_SIZE;
 
-	if (xTaskCreate(fn, (signed char*)"uGFX_TASK", stacksz, param, prio, &task )!= pdPASS) {
+	if (xTaskCreate(fn, "uGFX_TASK", stacksz, param, prio, &task )!= pdPASS) {
 		for (;;);
 	}
 
@@ -161,4 +159,3 @@ gfxThreadHandle gfxThreadCreate(void *stackarea, size_t stacksz, threadpriority_
 
 #endif /* GFX_USE_OS_FREERTOS */
 /** @} */
-
diff --git a/src/gos/freertos.h b/src/gos/freertos.h
index f15ca910..7fa9ee4f 100644
--- a/src/gos/freertos.h
+++ b/src/gos/freertos.h
@@ -59,7 +59,7 @@ typedef struct {
 } gfxSem;
 
 typedef xSemaphoreHandle		gfxMutex;
-typedef xTaskHandl*				gfxThreadHandle;
+typedef xTaskHandle*				gfxThreadHandle;
 
 /*===========================================================================*/
 /* Function declarations.                                                    */
@@ -111,4 +111,3 @@ gfxThreadHandle gfxThreadCreate(void *stackarea, size_t stacksz, threadpriority_
 
 #endif /* GFX_USE_OS_FREERTOS */
 #endif /* _GOS_CHIBIOS_H */
-
diff --git a/src/gos/sys_options.h b/src/gos/sys_options.h
index 9d2e735f..90a5bc91 100644
--- a/src/gos/sys_options.h
+++ b/src/gos/sys_options.h
@@ -42,17 +42,7 @@
 		#define GFX_USE_OS_WIN32		FALSE
 	#endif
 	/**
-	 * @brief   Use a linux based system running X11 
-	 * @details	Defaults to FALSE
-	/**
-	 * @brief   Use Win32
-	 * @details	Defaults to FALSE
-	 */
-	#ifndef GFX_USE_OS_WIN32
-		#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