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add spi flash as FAT file system.

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@435 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong
2010-02-22 23:51:07 +00:00
parent fc7f529450
commit 99da648141
4 changed files with 234 additions and 212 deletions
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bsp/stm32_radio/application.c
+6
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@@ -75,6 +75,12 @@ void rt_init_thread_entry(void *parameter)
rt_kprintf("File System initialized!\n");
else
rt_kprintf("File System init failed!\n");
/* mount spi flash fat as resource directory */
if (dfs_mount("spi0", "/flash", "elm", 0, 0) == 0)
rt_kprintf("SPI File System initialized!\n");
else
rt_kprintf("SPI File System init failed!\n");
#endif
}
#endif
bsp/stm32_radio/project.Opt
+199 -205
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File diff suppressed because it is too large Load Diff
bsp/stm32_radio/rtconfig.h
+1
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@@ -83,6 +83,7 @@
#define RT_USING_DFS_ELMFAT
#define RT_DFS_ELM_WORD_ACCESS
#define RT_DFS_ELM_DRIVES 2
/* SECTION: DFS options */
/* the max number of mounted filesystem */
bsp/stm32_radio/spi_flash.c
+28 -7
View File
@@ -158,16 +158,36 @@ static rt_err_t rt_spi_flash_control(rt_device_t dev, rt_uint8_t cmd, void *args
static rt_size_t rt_spi_flash_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
{
/* only supply single block read: block size 512Byte */
read_page(pos/512,buffer);
return RT_EOK;
rt_uint8_t *ptr;
rt_uint32_t index, nr;
nr = size/512;
ptr = (rt_uint8_t*)buffer;
for (index = 0; index < nr; index ++)
{
/* only supply single block read: block size 512Byte */
read_page((pos + index * 512)/512, &ptr[index * 512]);
}
return nr * 512;
}
static rt_size_t rt_spi_flash_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
{
/* only supply single block write: block size 512Byte */
write_page(pos/512,(unsigned char*)buffer);
return RT_EOK;
rt_uint8_t *ptr;
rt_uint32_t index, nr;
nr = size / 512;
ptr = (rt_uint8_t*)buffer;
for (index = 0; index < nr; index ++)
{
/* only supply single block write: block size 512Byte */
write_page((pos + index * 512)/512, &ptr[index * 512]);
}
return nr * 512;
}
void rt_hw_spi_flash_init(void)
@@ -175,6 +195,7 @@ void rt_hw_spi_flash_init(void)
GPIO_Configuration();
/* register spi_flash device */
spi_flash_device.type = RT_Device_Class_Block;
spi_flash_device.init = rt_spi_flash_init;
spi_flash_device.open = rt_spi_flash_open;
spi_flash_device.close = rt_spi_flash_close;
@@ -186,5 +207,5 @@ void rt_hw_spi_flash_init(void)
spi_flash_device.private = RT_NULL;
rt_device_register(&spi_flash_device, "spi0",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);
}