add MTD device.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1939 bbd45198-f89e-11dd-88c7-29a3b14d5316

2 files changed, 80 insertions, 1 deletions

diff --git a/components/drivers/mtd/SConscript b/components/drivers/mtd/SConscript
index 6671d42b8f..e456017a6e 100644
--- a/components/drivers/mtd/SConscript
+++ b/components/drivers/mtd/SConscript
@@ -3,6 +3,6 @@ from building import *
 cwd     = GetCurrentDir()

 src	= Glob('*.c')

 CPPPATH = [cwd + '/../include']

-group = DefineGroup('Drivers', src, depend = ['RT_USING_MTD'], CPPPATH = CPPPATH)

+group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_MTD'], CPPPATH = CPPPATH)

 

 Return('group')

diff --git a/components/drivers/mtd/mtd_core.c b/components/drivers/mtd/mtd_core.c
new file mode 100644
index 0000000000..a3d429dddd
--- /dev/null
+++ b/components/drivers/mtd/mtd_core.c
@@ -0,0 +1,79 @@
+/*
+ * File      : mtd_core.c
+ * 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
+ * 2011-12-05     Bernard      the first version
+ */
+
+/*
+ * COPYRIGHT (C) 2012, Shanghai Real Thread
+ */
+
+#include <drivers/mtd.h>
+
+#ifdef RT_USING_MTD
+
+/*
+ * RT-Thread Generic Device Interface
+ */
+static rt_err_t _mtd_init(rt_device_t dev)
+{
+	return RT_EOK;
+}
+
+static rt_err_t _mtd_open(rt_device_t dev, rt_uint16_t oflag)
+{
+	return RT_EOK;
+}
+
+static rt_err_t _mtd_close(rt_device_t dev)
+{
+	return RT_EOK;
+}
+
+static rt_size_t _mtd_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
+{
+	return size;
+}
+
+static rt_size_t _mtd_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
+{
+	return size;
+}
+
+static rt_err_t _mtd_control(rt_device_t dev, rt_uint8_t cmd, void *args)
+{
+	return RT_EOK;
+}
+
+rt_err_t rt_mtd_register_device(const char* name, struct rt_mtd_device* device)
+{
+	rt_device_t dev;
+
+	dev = RT_DEVICE(device);
+	RT_ASSERT(dev != RT_NULL);
+
+	/* set device class and generic device interface */
+	dev->type 		= RT_Device_Class_MTD;
+	dev->init 		= _mtd_init;
+	dev->open 		= _mtd_open;
+	dev->read 		= _mtd_read;
+	dev->write 		= _mtd_write;
+	dev->close      = _mtd_close;
+	dev->control 	= _mtd_control;
+
+	dev->rx_indicate = RT_NULL;
+	dev->tx_complete = RT_NULL;
+
+	/* register to RT-Thread device system */
+	return rt_device_register(dev, name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);
+}
+
+#endif