rebuild the directory organization of simulator

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2389 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/simulator/applications/SConscript

@@ -0,0 +1,9 @@
+from building import *
+
+cwd     = GetCurrentDir()
+src	= Glob('*.c')
+CPPPATH = [cwd, str(Dir('#'))]
+
+group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')

bsp/simulator/applications/application.c

@@ -0,0 +1,195 @@
+/*
+ * File      : application.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2009-01-05     Bernard      the first version
+ */
+
+#include <rtthread.h>
+#include <stdio.h>
+#include <board.h>
+
+#include <components.h>
+
+void rt_init_thread_entry(void* parameter)
+{
+    /* initialization RT-Thread Components */
+    rt_components_init();
+
+    rt_platform_init();
+
+    /* Filesystem Initialization */
+#ifdef RT_USING_DFS
+    {
+#ifdef RT_USING_DFS_ELMFAT
+        /* mount sd card fat partition 1 as root directory */
+        if (dfs_mount("sd0", "/", "elm", 0, 0) == 0)
+        {
+            rt_kprintf("fatfs initialized!\n");
+        }
+        else
+            rt_kprintf("fatfs initialzation failed!\n");
+#endif
+
+#ifdef RT_USING_DFS_ELMFAT
+        /* mount sd card fat partition 1 as root directory */
+        if (dfs_mount("nand0", "/nand", "uffs", 0, 0) == 0)
+        {
+            rt_kprintf("uffs initialized!\n");
+        }
+        else
+            rt_kprintf("uffs initialzation failed!\n");
+#endif
+
+#ifdef RT_USING_DFS_JFFS2
+        /* mount sd card fat partition 1 as root directory */
+        if (dfs_mount("nor", "/nor", "jffs2", 0, 0) == 0)
+        {
+            rt_kprintf("jffs2 initialized!\n");
+        }
+        else
+            rt_kprintf("jffs2 initialzation failed!\n");
+#endif
+    }
+#endif
+}
+
+void rt_test_thread_entry(void* parameter)
+{
+	int i;
+	for(i=0; i<10; i++)
+	{
+		rt_kprintf("hello, world\n");
+		rt_thread_delay(100);
+	}
+}
+
+int rt_application_init()
+{
+    rt_thread_t tid;
+
+    tid = rt_thread_create("init",
+        rt_init_thread_entry, RT_NULL,
+        2048, RT_THREAD_PRIORITY_MAX/3, 20);
+
+    if (tid != RT_NULL)
+        rt_thread_startup(tid);
+
+    tid = rt_thread_create("test",
+        rt_test_thread_entry, RT_NULL,
+        2048, RT_THREAD_PRIORITY_MAX * 3 /4, 20);
+    if (tid != RT_NULL)
+        rt_thread_startup(tid);
+
+    return 0;
+}
+
+#ifndef _CRT_TERMINATE_DEFINED
+#define _CRT_TERMINATE_DEFINED
+_CRTIMP __declspec(noreturn) void __cdecl exit(__in int _Code);
+_CRTIMP __declspec(noreturn) void __cdecl _exit(__in int _Code);
+_CRTIMP void __cdecl abort(void);
+#endif
+void rt_hw_exit(void)
+{
+    rt_kprintf("RT-Thread, bye\n");
+    exit(0);
+}
+FINSH_FUNCTION_EXPORT_ALIAS(rt_hw_exit, exit, exit rt-thread);
+
+#include <dfs_posix.h>
+void test_fs(void)
+{
+  int fd;
+  DIR* dir;
+  struct dirent* dirp;
+  off_t off[6];
+  int i;
+  mkdir("/testdir",0777);
+  fd = open("/testdir/file1",O_CREAT|O_RDWR,0777);
+  close(fd);
+  fd = open("/testdir/file2",O_CREAT|O_RDWR,0777);
+  close(fd);
+  fd = open("/testdir/file3",O_CREAT|O_RDWR,0777);
+  close(fd);
+  fd = open("/testdir/file4",O_CREAT|O_RDWR,0777);
+  close(fd);
+  fd = open("/testdir/file5",O_CREAT|O_RDWR,0777);
+  close(fd);
+  fd = open("/testdir/file6",O_CREAT|O_RDWR,0777);
+  close(fd);
+
+  dir = opendir("/testdir");
+  for(i=0;i<6;i++)
+  {
+     off[i] = telldir(dir); 
+     dirp = readdir(dir);
+     if(dirp)
+        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
+     else break;
+  }
+  for(i=0;i<6;i++)
+  {
+     seekdir(dir,off[i]);
+     dirp = readdir(dir);
+     if(dirp)
+        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
+     else break;
+  }
+
+  rt_kprintf("unlink file2\n");
+  unlink("/testdir/file2");
+  rewinddir(dir);
+  for(i=0;i<6;i++)
+  {
+     off[i] = telldir(dir); 
+     dirp = readdir(dir);
+     if(dirp)
+        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
+     else break;
+  }
+  for(i=0;i<6;i++)
+  {
+     seekdir(dir,off[i]);
+     dirp = readdir(dir);
+     if(dirp)
+        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
+     else break;
+  }
+
+  rt_kprintf("unlink file4\n");
+  unlink("/testdir/file4");
+  rewinddir(dir);
+  for(i=0;i<6;i++)
+  {
+     off[i] = telldir(dir); 
+     dirp = readdir(dir);
+     if(dirp)
+        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
+     else break;
+  }
+  for(i=0;i<6;i++)
+  {
+     seekdir(dir,off[i]);
+     dirp = readdir(dir);
+     if(dirp)
+        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
+     else break;
+  }
+
+  unlink("/testdir/file1");
+  unlink("/testdir/file3");
+  unlink("/testdir/file5");
+  unlink("/testdir/file6");
+
+  closedir(dir);
+}
+FINSH_FUNCTION_EXPORT(test_fs, test fs);
+/*@}*/

bsp/simulator/applications/platform.c

@@ -0,0 +1,36 @@
+#include <rtthread.h>
+#include "board.h"
+
+void rt_platform_init(void)
+{
+#ifdef RT_USING_DFS
+    /* initilize sd card */
+#ifdef RT_USING_DFS_ELMFAT
+    rt_hw_sdcard_init();
+#endif 
+
+#ifdef RT_USING_MTD_NAND
+    rt_hw_mtd_nand_init();
+#endif 
+
+#ifdef RT_USING_MTD_NOR
+    sst25vfxx_mtd_init("nor", 0, RT_UINT32_MAX);
+#endif 
+
+#endif /* RT_USING_DFS */
+
+#ifdef RT_USING_RTGUI
+    /* initilize touch panel */
+    rtgui_touch_hw_init("spi21");
+
+    /* initilize ra8875 lcd controller */
+    ra8875_init();
+
+    /* initilize key module */
+    rt_hw_key_init();
+#endif /* RT_USING_RTGUI */
+
+    rt_thread_delay(50);
+    rt_device_init_all();
+}
+

bsp/simulator/applications/startup.c

@@ -0,0 +1,102 @@
+/*
+ * File      : startup.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006, RT-Thread Develop Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://openlab.rt-thread.com/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2012-09-03     prife        first implementation
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+
+#include "board.h"
+
+/**
+ * @addtogroup win32
+ */
+#define HEAP_SIZE   (1024*1024*10)
+static rt_uint8_t * heap;
+
+void vs_heap_init(void)
+{
+	heap = malloc(HEAP_SIZE);
+	if (heap == RT_NULL)
+		rt_kprintf("there is no memory in pc.");
+}
+/*@{*/
+
+extern int  rt_application_init(void);
+#ifdef RT_USING_FINSH
+extern void finsh_system_init(void);
+extern void finsh_set_device(const char* device);
+#endif
+
+/**
+ * This function will startup RT-Thread RTOS.
+ */
+void rtthread_startup(void)
+{
+	/* init board */
+	rt_hw_board_init();
+
+	/* show version */
+	rt_show_version();
+
+	/* init tick */
+	rt_system_tick_init();
+
+	/* init kernel object */
+	rt_system_object_init();
+
+	/* init timer system */
+	rt_system_timer_init();
+
+#ifdef RT_USING_HEAP
+	/* init memory system */
+#if (MSVC)
+	vs_heap_init();
+#endif
+	rt_system_heap_init((void*)heap, (void*)&heap[HEAP_SIZE-1]);
+#endif
+
+	/* init scheduler system */
+	rt_system_scheduler_init();
+
+	/* init all device */
+#ifdef RT_USING_DEVICE
+	rt_device_init_all();
+#endif
+	/* init application */
+	rt_application_init();
+
+    /* init timer thread */
+    rt_system_timer_thread_init();
+
+	/* init idle thread */
+	rt_thread_idle_init();
+
+	/* start scheduler */
+	rt_system_scheduler_start();
+
+	/* never reach here */
+	return ;
+}
+
+int main(void)
+{
+	/* disable interrupt first */
+	rt_hw_interrupt_disable();
+
+	/* startup RT-Thread RTOS */
+	rtthread_startup();
+
+	return 0;
+}
+
+/*@}*/

bsp/simulator/drivers/SConscript

@@ -0,0 +1,16 @@
+from building import *
+
+cwd = GetCurrentDir()
+src = Glob('*.c')
+
+# remove no need file.
+if GetDepend('RT_USING_LWIP') == False:
+    SrcRemove(src, 'emac.c')
+if GetDepend('RT_USING_DFS') == False:
+    SrcRemove(src, 'sd.c')
+
+CPPPATH = [cwd]
+
+group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')

bsp/simulator/drivers/board.c

@@ -0,0 +1,45 @@
+/*
+ * File      : board.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009 RT-Thread Develop Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2009-01-05     Bernard      first implementation
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+
+#include "board.h"
+
+/**
+ * @addtogroup simulator on win32
+ */
+
+/**
+ * This function will initial STM32 board.
+ */
+void rt_hw_board_init()
+{
+#if 0
+	/* NVIC Configuration */
+	NVIC_Configuration();
+
+    /* Configure the SysTick */
+    SysTick_Config( SystemCoreClock / RT_TICK_PER_SECOND );
+#endif 
+
+#if defined(RT_USING_CONSOLE)
+	rt_hw_usart_init();
+	rt_hw_serial_init();
+	rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
+#endif
+
+}
+
+/*@}*/

bsp/simulator/drivers/board.h

@@ -0,0 +1,32 @@
+/*
+ * File      : board.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2009-09-22     Bernard      add board.h to this bsp
+ */
+
+#ifndef __BOARD_H__
+#define __BOARD_H__
+
+void rt_hw_board_led_on(int n);
+void rt_hw_board_led_off(int n);
+void rt_hw_board_init(void);
+
+void rt_hw_serial_init(void);
+
+/* SD Card init function */
+void rt_hw_sdcard_init(void);
+
+int rt_hw_mtd_nand_init(void);
+
+int sst25vfxx_mtd_init(const char * nor_name, unsigned int block_start, unsigned int block_end);
+
+void rt_platform_init(void);
+#endif

bsp/simulator/drivers/nand_sim.c

@@ -0,0 +1,234 @@
+#include <rtdevice.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <dfs_def.h>
+
+// #define NAND_TRACE		rt_kprintf
+#define NAND_TRACE(...)
+
+#define NAND_SIM  "nand.bin"
+
+struct nand_device
+{
+	struct rt_mtd_nand_device parent;
+	FILE * file;
+};
+static struct nand_device _nand;
+
+#define NAND_DEVICE(device) 		(( struct nand_device*)(device))
+
+#define PAGE_DATA_SIZE                2048  /* page data size in bytes */
+#define PAGE_SPARE_SIZE               64    /* oob size in bytes */
+#define BLOCK_PAGES                   64    /* the number of pages in a block */
+#define BLOCK_SIZE                    ((PAGE_DATA_SIZE + PAGE_SPARE_SIZE) * BLOCK_PAGES)
+
+#define BLOCK_COUNT                   128  /* 128 blocks == 16M */
+#define BLOCK_MARK_SPARE_OFFSET       4
+
+static rt_mutex_t lock;
+
+/* RT-Thread device interface */
+
+static rt_err_t k9f1g08_mtd_check_block(
+		struct rt_mtd_nand_device* device,
+		rt_uint32_t block)
+{
+	rt_uint8_t block_status;
+	int result;
+
+	struct nand_device * nand;
+	nand = NAND_DEVICE(device);
+
+	fseek(nand->file, block * device->pages_per_block * 
+		              (device->page_size + device->oob_size) +
+					  device->page_size + BLOCK_MARK_SPARE_OFFSET,
+					  SEEK_SET);
+	result = fread(&block_status, 1, 1, nand->file);
+	if (result < 0)
+	{
+		NAND_TRACE("nand fread error\n");
+		return -RT_ERROR;
+	}
+
+	return block_status == 0xFF ? RT_EOK : -RT_ERROR;
+}
+
+static rt_err_t k9f1g08_mtd_mark_bad_block(
+		struct rt_mtd_nand_device* device,
+		rt_uint32_t block)
+{
+	rt_uint8_t block_status;
+	int result;
+
+	struct nand_device * nand;
+	nand = NAND_DEVICE(device);
+
+	fseek(nand->file, block * device->pages_per_block *  
+		              (device->page_size + device->oob_size) +
+					  device->page_size + BLOCK_MARK_SPARE_OFFSET,
+					  SEEK_SET);
+
+	block_status = 0x00;
+	result = fwrite(&block_status, 1, 1, nand->file);
+	if (result < 0)
+	{
+		NAND_TRACE("nand fwrite error\n");
+		return -RT_ERROR;
+	}
+
+	return RT_EOK;
+}
+
+static char block_buffer[BLOCK_SIZE];
+
+static rt_err_t k9f1g08_mtd_erase_block(
+		struct rt_mtd_nand_device* device,
+		rt_uint32_t block)
+{
+	int result;
+
+	struct nand_device * nand;
+	nand = NAND_DEVICE(device);
+
+	fseek(nand->file, block * device->pages_per_block * 
+		              (device->page_size + device->oob_size),
+					  SEEK_SET);
+
+	memset(block_buffer, 0xFF, sizeof(BLOCK_SIZE));
+	result = fwrite(block_buffer, BLOCK_SIZE, 1, nand->file);
+	if (result < 0)
+	{
+		NAND_TRACE("nand fwrite error\n");
+		return -RT_ERROR;
+	}
+
+	return RT_EOK;
+}
+
+/* return 0, ecc ok, 1, can be fixed , -1 can not be fixed */
+static rt_err_t k9f1g08_mtd_read(
+		struct rt_mtd_nand_device * device,
+		rt_off_t page,
+		rt_uint8_t * data, rt_uint32_t data_len, //may not always be 2048
+		rt_uint8_t * spare, rt_uint32_t spare_len)
+{
+	int result;
+	int ecc_status = 0;
+
+	struct nand_device * nand;
+	nand = NAND_DEVICE(device);
+
+	if (data != RT_NULL && data_len != 0)
+	{
+		fseek(nand->file, page * (device->page_size + device->oob_size),
+						  SEEK_SET);
+		result = fread(data, data_len, 1, nand->file);
+		if (result < 0)
+			ecc_status = -1;
+	}
+
+	if (spare != RT_NULL && spare_len != 0)
+	{
+		fseek(nand->file, page * (device->page_size + device->oob_size)
+			              +device->page_size,
+						  SEEK_SET);
+		result = fread(spare, spare_len, 1, nand->file);
+		if (result < 0)
+			ecc_status = -1;
+	}
+
+	return ecc_status;
+}
+
+static rt_err_t k9f1g08_mtd_write (
+		struct rt_mtd_nand_device * device,
+		rt_off_t page,
+		const rt_uint8_t * data, rt_uint32_t data_len,//will be 2048 always!
+		const rt_uint8_t * spare, rt_uint32_t spare_len)
+{
+	int result;
+	int ecc_status = 0;
+
+	struct nand_device * nand;
+	nand = NAND_DEVICE(device);
+
+	if (data != RT_NULL && data_len != 0)
+	{
+		fseek(nand->file, page * (device->page_size + device->oob_size),
+						  SEEK_SET);
+		result = fwrite(data, data_len, 1, nand->file);
+		if (result < 0)
+			ecc_status = -1;
+	}
+
+	if (spare != RT_NULL && spare_len != 0)
+	{
+		fseek(nand->file, page * (device->page_size + device->oob_size)
+			              +device->page_size,
+						  SEEK_SET);
+		result = fwrite(spare, spare_len, 1, nand->file);
+		if (result < 0)
+			ecc_status = -1;
+	}
+
+	return ecc_status;
+}
+
+
+const static struct rt_mtd_nand_driver_ops k9f1g08_mtd_ops =
+{
+	RT_NULL,
+	k9f1g08_mtd_read,
+	k9f1g08_mtd_write,
+	k9f1g08_mtd_erase_block,
+	k9f1g08_mtd_check_block,
+	k9f1g08_mtd_mark_bad_block,
+};
+
+/* interface of nand and rt-thread device */
+static struct rt_mtd_nand_device nand_part[2];
+
+int rt_hw_mtd_nand_init(void)
+{
+	int size;
+    rt_uint32_t id, total_block;
+    struct nand_device * nand;
+    struct rt_mtd_nand_device * nand_part;
+
+    nand = &_nand;
+	nand_part = &(nand->parent);
+
+	lock = rt_mutex_create("nand", RT_IPC_FLAG_FIFO);
+
+	/* open sd card file, if not exist, then create it  */
+	nand->file = fopen(NAND_SIM, "rb+");
+	if (nand->file == NULL)
+	{
+		int i;
+		/* create a file to simulate sd card */
+		nand->file = fopen(NAND_SIM, "wb+");
+
+		memset(block_buffer, 0xFF, sizeof(block_buffer));
+		for(i=0; i<BLOCK_COUNT; i++)
+		{
+			fseek(nand->file, i * BLOCK_SIZE, SEEK_SET);
+			fwrite(block_buffer, BLOCK_SIZE, 1, nand->file);
+		}
+	}
+	fseek(nand->file, 0, SEEK_SET);
+
+	/* the first partition of nand */
+	nand_part->page_size = PAGE_DATA_SIZE;
+	nand_part->pages_per_block = BLOCK_PAGES;//don't caculate oob size
+	nand_part->block_start = 0;
+	nand_part->block_end = BLOCK_COUNT -1;
+	nand_part->oob_size = PAGE_SPARE_SIZE;
+	nand_part->ops = &k9f1g08_mtd_ops;
+	rt_mtd_nand_register_device("nand0", nand_part);
+    return RT_EOK;
+}
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+#endif

bsp/simulator/drivers/sd_sim.c

@@ -0,0 +1,194 @@
+#include <rtthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dfs_def.h>
+
+// #define SD_TRACE		rt_kprintf
+#define SD_TRACE(...)
+
+//#define SDCARD_SIM  "F:\\Project\\tools\\SDCARD"
+#define SDCARD_SIM  "sd.bin"
+#define SDCARD_SIZE (16*1024*1024)  //16M
+
+struct sdcard_device
+{
+	struct rt_device parent;
+	FILE* file;
+};
+static struct sdcard_device _sdcard;
+
+#define SDCARD_DEVICE(device) 		(( struct sdcard_device*)(device))
+
+static rt_mutex_t lock;
+
+/* RT-Thread device interface */
+
+static rt_err_t rt_sdcard_init(rt_device_t dev)
+{
+	return RT_EOK;
+}
+
+static rt_err_t rt_sdcard_open(rt_device_t dev, rt_uint16_t oflag)
+{
+	return RT_EOK;
+}
+
+static rt_err_t rt_sdcard_close(rt_device_t dev)
+{
+	return RT_EOK;
+}
+
+/* position: block page address, not bytes address
+ * buffer:
+ * size  : how many blocks
+ */
+static rt_size_t rt_sdcard_read(rt_device_t device, rt_off_t position, void* buffer, rt_size_t size)
+{
+    struct sdcard_device * sd;
+	int result = 0;
+
+	SD_TRACE("sd read: pos %d, size %d\n", position, size);
+
+	rt_mutex_take(lock, RT_WAITING_FOREVER);
+    sd = SDCARD_DEVICE(device);
+	fseek(sd->file, position * SECTOR_SIZE, SEEK_SET);
+
+	result = fread(buffer, size * SECTOR_SIZE, 1, sd->file);
+	if (result < 0)
+		goto _err;
+
+	rt_mutex_release(lock);
+    return size;
+
+_err:
+	SD_TRACE("sd read errors!\n");	
+	rt_mutex_release(lock);
+	return 0;
+}
+
+/* position: block page address, not bytes address
+ * buffer:
+ * size  : how many blocks
+ */
+static rt_size_t rt_sdcard_write(rt_device_t device, rt_off_t position, const void* buffer, rt_size_t size)
+{
+    struct sdcard_device * sd;
+	int result = 0;
+
+	SD_TRACE("sst write: pos %d, size %d\n", position, size);
+
+	rt_mutex_take(lock, RT_WAITING_FOREVER);
+    sd = SDCARD_DEVICE(device);
+	fseek(sd->file, position * SECTOR_SIZE, SEEK_SET);
+
+	result = fwrite(buffer, size * SECTOR_SIZE, 1, sd->file);
+	if (result < 0)
+		goto _err;
+
+	rt_mutex_release(lock);
+    return size;
+
+_err:
+	SD_TRACE("sd write errors!\n");	
+	rt_mutex_release(lock);
+	return 0;
+}
+
+static rt_err_t rt_sdcard_control(rt_device_t dev, rt_uint8_t cmd, void *args)
+{
+    struct sdcard_device * sd;
+	unsigned int size;
+
+    RT_ASSERT(dev != RT_NULL);
+
+    sd = SDCARD_DEVICE(dev);
+
+    if (cmd == RT_DEVICE_CTRL_BLK_GETGEOME)
+    {
+        struct rt_device_blk_geometry *geometry;
+
+        geometry = (struct rt_device_blk_geometry *)args;
+        if (geometry == RT_NULL) return -RT_ERROR;
+
+        geometry->bytes_per_sector = SECTOR_SIZE;
+        geometry->block_size = SECTOR_SIZE;
+
+		fseek(sd->file, 0, SEEK_END);
+		size = ftell(sd->file);
+
+		geometry->sector_count = size/SECTOR_SIZE;
+    }
+	return RT_EOK;
+}
+
+
+rt_err_t rt_hw_sdcard_init(const char * spi_device_name)
+{
+	int size;
+    rt_uint32_t id, total_block;
+    struct sdcard_device * sd;
+    struct rt_device * device;
+
+    sd = &_sdcard;
+	device = &(sd->parent);
+
+	lock = rt_mutex_create("lock", RT_IPC_FLAG_FIFO);
+
+	/* open sd card file, if not exist, then create it  */
+	sd->file = fopen(SDCARD_SIM, "rb+");
+	if (sd->file == NULL)
+	{
+		/* create a file to simulate sd card */
+		sd->file = fopen(SDCARD_SIM, "wb+");
+
+		fseek(sd->file, 0, SEEK_END);
+		size = ftell(sd->file);
+
+		fseek(sd->file, 0, SEEK_SET );
+		if (size < SDCARD_SIZE)
+		{
+			int i;
+			unsigned char* ptr;
+
+			ptr = (unsigned char*) malloc (1024 * 1024);
+			if (ptr == NULL)
+			{
+				SD_TRACE("malloc error, no memory!\n");
+				return RT_ERROR;
+			}
+			memset(ptr, 0x0, 1024 * 1024);
+
+			fseek(sd->file, 0, SEEK_SET);
+
+			for(i=0; i<(SDCARD_SIZE / (1024*1024)); i++)
+				fwrite(ptr, 1024 * 1024, 1, sd->file);
+
+			free(ptr);
+		}
+	}
+	fseek(sd->file, 0, SEEK_SET);
+
+	device->type  = RT_Device_Class_Block;								
+	device->init = rt_sdcard_init;
+	device->open = rt_sdcard_open;
+	device->close = rt_sdcard_close;
+	device->read = rt_sdcard_read;
+	device->write = rt_sdcard_write;
+	device->control = rt_sdcard_control;
+	device->user_data = NULL;
+
+	rt_device_register(device, "sd0",
+		RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
+
+    return RT_EOK;
+}
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+void eraseall(void)
+{
+	printf("had not implemented yet!\n");
+}
+FINSH_FUNCTION_EXPORT(eraseall, erase all block in SPI flash);
+#endif

bsp/simulator/drivers/serial.c

@@ -0,0 +1,161 @@
+/*
+******************************************************************************
+* By   : parai 
+* email:parai@foxmail.com 
+* 这并不是一个真的串口设备，只是为了能够让内核打印信息而创建
+******************************************************************************
+*/
+
+#include "rtthread.h"
+
+#define _DEBUG_SERIAL 0
+#include "serial.h"
+#include <stdio.h>
+struct rt_device serial_device;
+extern struct serial_int_rx serial_rx;
+
+/*@{*/
+
+/* RT-Thread Device Interface */
+/**
+ * This function initializes serial
+ */
+static rt_err_t rt_serial_init (rt_device_t dev)
+{
+	if (!(dev->flag & RT_DEVICE_FLAG_ACTIVATED))
+	{
+		if (dev->flag & RT_DEVICE_FLAG_INT_RX)
+		{
+			rt_memset(serial_rx.rx_buffer, 0,
+				sizeof(serial_rx.rx_buffer));
+			serial_rx.read_index = 0;
+			serial_rx.save_index = 0;
+		}
+
+		dev->flag |= RT_DEVICE_FLAG_ACTIVATED;
+	}
+	return RT_EOK;
+}
+
+static rt_err_t rt_serial_open(rt_device_t dev, rt_uint16_t oflag){
+#if _DEBUG_SERIAL==1
+	printf("in rt_serial_open()\n");
+#endif
+	return RT_EOK;
+}
+
+static rt_err_t rt_serial_close(rt_device_t dev)
+{
+#if _DEBUG_SERIAL==1
+	printf("in rt_serial_close()\n");
+#endif
+	return RT_EOK;
+}
+static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
+{
+	rt_uint8_t* ptr;
+	rt_err_t err_code;
+
+	ptr = buffer;
+	err_code = RT_EOK;
+
+	if (dev->flag & RT_DEVICE_FLAG_INT_RX)
+	{
+		/* interrupt mode Rx */
+		while (size)
+		{
+			rt_base_t level;
+
+			/* disable interrupt */
+			level = rt_hw_interrupt_disable();
+
+			if (serial_rx.read_index != serial_rx.save_index)
+			{
+				/* read a character */
+				*ptr++ = serial_rx.rx_buffer[serial_rx.read_index];
+				size--;
+
+				/* move to next position */
+				serial_rx.read_index ++;
+				if (serial_rx.read_index >= SERIAL_RX_BUFFER_SIZE)
+					serial_rx.read_index = 0;
+			}
+			else
+			{
+				/* set error code */
+				err_code = -RT_EEMPTY;
+
+				/* enable interrupt */
+				rt_hw_interrupt_enable(level);
+				break;
+			}
+
+			/* enable interrupt */
+			rt_hw_interrupt_enable(level);
+		}
+	}
+
+
+	/* set error code */
+	rt_set_errno(err_code);
+	return (rt_uint32_t)ptr - (rt_uint32_t)buffer;
+}
+
+static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
+{
+#if _DEBUG_SERIAL==1
+	printf("in rt_serial_write()\n");
+#endif
+	printf("%s",(char*)buffer);
+	return size;
+}
+
+static rt_err_t rt_serial_control (rt_device_t dev, rt_uint8_t cmd, void *args)
+{
+	RT_ASSERT(dev != RT_NULL);
+
+	switch (cmd){
+	case RT_DEVICE_CTRL_SUSPEND:
+		/* suspend device */
+		dev->flag |= RT_DEVICE_FLAG_SUSPENDED;
+		break;
+
+	case RT_DEVICE_CTRL_RESUME:
+		/* resume device */
+		dev->flag &= ~RT_DEVICE_FLAG_SUSPENDED;
+		break;
+	}
+
+	return RT_EOK;
+}
+
+/*
+ * serial register
+ */
+static rt_err_t rt_hw_serial_register(rt_device_t device, const char* name, rt_uint32_t flag)
+{
+	RT_ASSERT(device != RT_NULL);
+#if _DEBUG_SERIAL==1
+	printf("in rt_serial_register()\n");
+#endif
+	device->type 		= RT_Device_Class_Char;
+	device->rx_indicate = RT_NULL;
+	device->tx_complete = RT_NULL;
+	device->init 		= rt_serial_init;
+	device->open		= rt_serial_open;
+	device->close		= rt_serial_close;
+	device->read 		= rt_serial_read;
+	device->write 		= rt_serial_write;
+	device->control 	= rt_serial_control;
+	device->user_data		= RT_NULL;
+
+	/* register a character device */
+	return rt_device_register(device, name, RT_DEVICE_FLAG_RDWR | flag);
+}
+
+rt_err_t rt_hw_serial_init(void)
+{
+  	return rt_hw_serial_register(&serial_device,"sci0",
+  		RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM);
+}
+

bsp/simulator/drivers/serial.h

@@ -0,0 +1,22 @@
+/*
+*********************************************************************************************************
+*                                       MC9S12DP256/DG128 Specific code
+*                                          BANKED MEMORY MODEL
+*
+* File : rthw.c
+* By   : parai 
+* email:parai@foxmail.com 
+*******************************************************************************************************/
+
+#ifndef __RT_HW_SERIAL_H__
+#define __RT_HW_SERIAL_H__
+
+#define SERIAL_RX_BUFFER_SIZE 80
+struct serial_int_rx
+{
+	rt_uint8_t  rx_buffer[SERIAL_RX_BUFFER_SIZE];
+	rt_uint32_t read_index, save_index;
+};
+
+rt_err_t rt_hw_serial_init(void);
+#endif

bsp/simulator/drivers/sst25vfxx_mtd.h

@@ -0,0 +1,24 @@
+/*
+ * File      : sst25vfxx_mtd.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2011, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2011-12-16     aozima       the first version
+ * 2012-02-01     mbbill       MTD driver version
+ */
+
+#ifndef SST25VFXX_MTD_H
+#define SST25VFXX_MTD_H
+
+#include <rtthread.h>
+#include <drivers/spi.h>
+
+rt_err_t sst25vfxx_mtd_init(const char *spi_device_name, rt_uint32_t block_start, rt_uint32_t block_end);
+
+#endif

bsp/simulator/drivers/sst25vfxx_mtd_sim.c

@@ -0,0 +1,228 @@
+/*
+ * File      : rtdef.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2012-10-21     prife        the first version
+ */
+
+#include <rtdevice.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "sst25vfxx_mtd.h"
+
+#ifdef RT_USING_MTD_NOR
+#define NOR_SIM "nor.bin"
+/* JEDEC Manufacturer¡¯s ID */
+#define MF_ID           (0xBF)
+/* JEDEC Device ID : Memory Type */
+#define MT_ID           (0x25)
+/* JEDEC Device ID: Memory Capacity */
+#define MC_ID_SST25VF016               (0x41)
+#define MC_ID_SST25VF032               (0x4A)
+#define MC_ID_SST25VF064               (0x4B)
+
+#define BLOCK_SIZE   (64*1024)
+
+
+#define SST25_MTD(device) 		((struct sst25_mtd*)(device))
+struct sst25_mtd
+{
+	struct rt_mtd_nor_device parent;
+	FILE * file;
+};
+static struct sst25_mtd _sst25_mtd;
+
+static struct rt_mutex flash_lock;
+
+/* RT-Thread MTD device interface */
+static rt_uint32_t sst25vfxx_read_id(struct rt_mtd_nor_device* device)
+{
+	rt_uint8_t id_recv[3] = {MF_ID, MT_ID, MC_ID_SST25VF016};
+
+	return (id_recv[0] << 16) | (id_recv[1] << 8) | id_recv[2];
+}
+
+static int sst25vfxx_read(struct rt_mtd_nor_device* device, rt_off_t position, rt_uint8_t *data, rt_size_t size)
+{
+    struct sst25_mtd *sst25;
+	int result;
+
+    sst25 = SST25_MTD(device);
+    RT_ASSERT(sst25 != RT_NULL);
+
+	rt_mutex_take(&flash_lock, RT_WAITING_FOREVER);
+
+	fseek(sst25->file, position, SEEK_SET);
+	result = fread(data, size, 1, sst25->file);
+	if (result < 0)
+		rt_kprintf("sst read error.\n");
+
+	rt_mutex_release(&flash_lock);
+    return size;
+}
+
+static int sst25vfxx_write(struct rt_mtd_nor_device* device, rt_off_t position,
+		const rt_uint8_t *data, rt_size_t size)
+{
+    struct sst25_mtd *sst25;
+	int result;
+
+    sst25 = SST25_MTD(device);
+    RT_ASSERT(sst25 != RT_NULL);
+
+	rt_mutex_take(&flash_lock, RT_WAITING_FOREVER);
+
+	fseek(sst25->file, position, SEEK_SET);
+	result = fwrite(data, size, 1, sst25->file);
+	if (result < 0)
+		rt_kprintf("sst write error.\n");
+
+	rt_mutex_release(&flash_lock);
+    return size;
+}
+
+static char block_buffer[BLOCK_SIZE];
+
+static rt_err_t sst25vfxx_erase_block(struct rt_mtd_nor_device* device, rt_uint32_t block)
+{
+    struct sst25_mtd *sst25;
+	int result;
+
+    sst25 = SST25_MTD(device);
+
+    RT_ASSERT(sst25 != RT_NULL);
+
+	rt_mutex_take(&flash_lock, RT_WAITING_FOREVER);
+
+	memset(block_buffer, 0xFF, BLOCK_SIZE);
+	fseek(sst25->file, block, SEEK_SET);
+
+	result = fwrite(block_buffer, BLOCK_SIZE, 1, sst25->file);
+	if (result < 0)
+		rt_kprintf("sst write error.\n");
+
+	rt_mutex_release(&flash_lock);
+    return RT_EOK;
+}
+
+const static struct rt_mtd_nor_driver_ops sst25vfxx_mtd_ops =
+{
+	sst25vfxx_read_id,
+	sst25vfxx_read,
+	sst25vfxx_write,
+	sst25vfxx_erase_block,
+};
+static rt_err_t sst25vfxx_hw_init(struct sst25_mtd *mtd)
+{
+	mtd = mtd;
+    return RT_EOK;
+}
+
+/**
+ * SST25vfxx API
+ */
+rt_err_t sst25vfxx_mtd_init(const char * nor_name,
+		rt_uint32_t block_start,
+		rt_uint32_t block_end)
+{
+    rt_uint32_t id, total_block;
+	struct sst25_mtd * sst25;
+    struct rt_mtd_nor_device *mtd;
+
+
+    sst25 = &_sst25_mtd;
+	mtd = &(sst25->parent);
+
+    /* set page size and block size */
+    mtd->block_size = 64 * 1024; /* 64kByte */
+    mtd->ops = &sst25vfxx_mtd_ops;
+
+    /* initialize mutex */
+	if (rt_mutex_init(&flash_lock, nor_name, RT_IPC_FLAG_FIFO) != RT_EOK)
+	{
+		rt_kprintf("init sd lock mutex failed\n");
+	}
+
+    /* initialize flash */
+    id = sst25vfxx_read_id(mtd);
+    switch (id & 0xff)
+    {
+    case MC_ID_SST25VF016:
+    	total_block = (16 * 1024 * 1024 / 8) / mtd->block_size;
+    	break;
+    case MC_ID_SST25VF032:
+    	total_block = (32 * 1024 * 1024 / 8) / mtd->block_size;
+    	break;
+    case MC_ID_SST25VF064:
+    	total_block = (64 * 1024 * 1024 / 8) / mtd->block_size;
+    	break;
+    default:
+    	rt_kprintf("SST25 detection error, id: %x\n", id);
+    	return -RT_ERROR;
+    }
+
+    if ((block_end == RT_UINT32_MAX) || (block_end == 0))
+    {
+    	block_end = total_block;
+    }
+    else if (block_end > total_block)
+    {
+    	rt_kprintf("SST25 total block: %d, out of block\n", total_block);
+    	return -RT_ERROR;
+    }
+
+    mtd->block_start = block_start;
+    mtd->block_end   = block_end;
+
+	/* open nor file, if not exist, then create it  */
+	sst25->file = fopen(NOR_SIM, "rb+");
+	if (sst25->file == NULL)
+	{
+		int i;
+		/* create a file to simulate nor */
+		sst25->file = fopen(NOR_SIM, "wb+");
+
+		memset(block_buffer, 0xFF, sizeof(block_buffer));
+		for(i=0; i<total_block; i++)
+		{
+			fseek(sst25->file, i * BLOCK_SIZE, SEEK_SET);
+			fwrite(block_buffer, BLOCK_SIZE, 1, sst25->file);
+		}
+	}
+
+	fseek(sst25->file, 0, SEEK_SET);
+
+    /* initialize hardware */
+    sst25vfxx_hw_init(&_sst25_mtd);
+
+    /* register MTD device */
+	rt_mtd_nor_register_device("nor", mtd);
+
+    return RT_EOK;
+}
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+void nor_erase(void)
+{
+	rt_uint32_t index;
+    struct rt_mtd_nor_device *mtd;
+
+    mtd = SST25_MTD(&_sst25_mtd);
+	for (index = mtd->block_start; index < mtd->block_end; index ++)
+	{
+		sst25vfxx_erase_block(mtd, index * mtd->block_size);
+	}
+}
+FINSH_FUNCTION_EXPORT(nor_erase, erase all block in SPI flash);
+#endif
+
+#endif

bsp/simulator/drivers/usart_sim.c

@@ -0,0 +1,131 @@
+#include  <rtthread.h>
+#include  <windows.h>
+#include  <mmsystem.h>
+#include  <stdio.h>
+#include "serial.h"
+
+struct serial_int_rx serial_rx;
+extern struct rt_device serial_device;
+
+/*
+ * Handler for OSKey Thread
+ */
+static HANDLE       OSKey_Thread;
+static DWORD        OSKey_ThreadID;
+
+static DWORD WINAPI ThreadforKeyGet(LPVOID lpParam);
+void rt_hw_usart_init(void)
+{
+
+	/*
+	 * create serial thread that revice key input from keyboard
+	 */
+
+    OSKey_Thread = CreateThread(NULL,
+                                 0,
+                                 (LPTHREAD_START_ROUTINE)ThreadforKeyGet,
+                                 0,
+                                 CREATE_SUSPENDED,
+                                 &OSKey_ThreadID);
+    if(OSKey_Thread == NULL)
+    {
+        //Display Error Message
+
+        return;
+    }
+    SetThreadPriority(OSKey_Thread,
+                      THREAD_PRIORITY_NORMAL);
+    SetThreadPriorityBoost(OSKey_Thread,
+                           TRUE);
+    SetThreadAffinityMask(OSKey_Thread,
+                          0x01);
+    /*
+     * Start OS get key Thread
+     */
+    ResumeThread(OSKey_Thread);
+
+}
+
+/*
+ * 方向键(←)： 0xe04b 
+ * 方向键(↑)： 0xe048 
+ * 方向键(→)： 0xe04d 
+ * 方向键(↓)： 0xe050 
+ */
+static int savekey(unsigned char key)
+{
+	/* save on rx buffer */
+	{
+		rt_base_t level;
+
+		/* disable interrupt */
+        //暂时关闭中断，因为要操作uart数据结构
+		level = rt_hw_interrupt_disable();
+
+		/* save character */
+		serial_rx.rx_buffer[serial_rx.save_index] = key;
+		serial_rx.save_index ++;
+	    //下面的代码检查save_index是否已经到到缓冲区尾部，如果是则回转到头部，称为一个环形缓冲区	
+		if (serial_rx.save_index >= SERIAL_RX_BUFFER_SIZE)
+			serial_rx.save_index = 0;
+
+        //这种情况表示反转后的save_index追上了read_index，则增大read_index，丢弃一个旧的数据
+		/* if the next position is read index, discard this 'read char' */
+		if (serial_rx.save_index == serial_rx.read_index)
+		{
+			serial_rx.read_index ++;
+			if (serial_rx.read_index >= SERIAL_RX_BUFFER_SIZE)
+				serial_rx.read_index = 0;
+		}
+
+		/* enable interrupt */
+		//uart数据结构已经操作完成，重新使能中断
+		rt_hw_interrupt_enable(level);
+	}
+
+	/* invoke callback */
+	if (serial_device.rx_indicate != RT_NULL)
+	{
+		rt_size_t rx_length;
+
+		/* get rx length */
+		rx_length = serial_rx.read_index > serial_rx.save_index ?
+			SERIAL_RX_BUFFER_SIZE - serial_rx.read_index + serial_rx.save_index :
+			serial_rx.save_index - serial_rx.read_index;
+
+		serial_device.rx_indicate(&serial_device, rx_length);
+	}
+	return 0;
+}
+static DWORD WINAPI ThreadforKeyGet(LPVOID lpParam)
+{
+	unsigned char key;
+
+    (void)lpParam;              //prevent compiler warnings
+
+    for(;;)
+    {
+		key = _getch();//getchar();
+		if (key == 0xE0)
+		{
+			key = _getch();
+
+			if (key == 0x48) //up key , 0x1b 0x5b 0x41
+			{
+				savekey(0x1b);
+				savekey(0x5b);
+				savekey(0x41);
+			}
+			else if (key == 0x50)//0x1b 0x5b 0x42
+			{
+				savekey(0x1b);
+				savekey(0x5b);
+				savekey(0x42);
+			}
+
+			continue;
+		}
+
+		savekey(key);
+    }
+} /*** ThreadforKeyGet ***/