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add fatfs through vfs for EVB plus

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1. see board\TencentOS_tiny_EVB_MX_Plus\KEIL\fatfs_through_vfs
This commit is contained in:
daishengdong
2020-06-02 21:31:11 +08:00
parent 5ed72770f5
commit 7f4b0b2582
32 changed files with 3132 additions and 88 deletions
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26
components/fs/fatfs/wrapper/tos_fatfs_drv.c
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@@ -29,7 +29,7 @@ static uint8_t sdio_aligned_buffer[512] __ALIGNED__(4);
static ssize_t sd_read(vfs_inode_t *dev, void *buf, size_t start_sector, unsigned int nsectors)
{
TOS_CPU_CPSR_ALLOC();
int ret = 0;
int rc = 0;
uint32_t i;
uint8_t *buff = (uint8_t *)buf;
uint64_t sector_addr = start_sector << 9;
@@ -37,44 +37,42 @@ static ssize_t sd_read(vfs_inode_t *dev, void *buf, size_t start_sector, unsigne
TOS_CPU_INT_DISABLE();
if ((cpu_addr_t)buff % 4 != 0) {
for (i = 0; i < nsectors; ++i) {
ret = tos_hal_sd_read(&sd, sdio_aligned_buffer, sector_addr + 512 * i, 1, 2000);
rc = tos_hal_sd_read(&sd, sdio_aligned_buffer, sector_addr + 512 * i, 1, 2000);
memcpy(buff, sdio_aligned_buffer, 512);
buff += 512;
}
} else {
ret = tos_hal_sd_read(&sd, buff, sector_addr, nsectors, 2000);
rc = tos_hal_sd_read(&sd, buff, sector_addr, nsectors, 2000);
}
TOS_CPU_INT_ENABLE();
return ret;
return rc;
}
static ssize_t sd_write(vfs_inode_t *dev, const unsigned char *buf, size_t start_sector, unsigned int nsectors)
{
TOS_CPU_CPSR_ALLOC();
int ret = 0;
int rc = 0;
uint32_t i;
uint8_t *buff = (uint8_t *)buf;
uint64_t sector_addr = start_sector << 9;
TOS_CPU_INT_DISABLE();
if ((cpu_addr_t)buff % 4 !=0) {
if ((cpu_addr_t)buff % 4 != 0) {
for (i = 0; i < nsectors; ++i) {
memcpy(sdio_aligned_buffer, buff, 512);
ret = tos_hal_sd_write(&sd, sdio_aligned_buffer, sector_addr + 512 * i, 1, 2000);
rc = tos_hal_sd_write(&sd, sdio_aligned_buffer, sector_addr + 512 * i, 1, 2000);
buff += 512;
}
} else {
ret = tos_hal_sd_write(&sd, buff, sector_addr, nsectors, 2000);
rc = tos_hal_sd_write(&sd, buff, sector_addr, nsectors, 2000);
}
TOS_CPU_INT_ENABLE();
return ret;
return rc;
}
static int sd_ioctl(vfs_inode_t *dev, int cmd, unsigned long arg)
{
int ret = 0;
int rc = 0;
void *buff = (void *)arg;
if (cmd != CTRL_SYNC && !buff) {
@@ -98,11 +96,11 @@ static int sd_ioctl(vfs_inode_t *dev, int cmd, unsigned long arg)
break;
default:
ret = -1;
rc = -1;
break;
}
return ret;
return rc;
}
static int sd_geometry(vfs_inode_t *dev, vfs_blkdev_geo_t *geo)