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add msc port for fatfs

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This commit is contained in:
sakumisu
2022-02-23 17:47:24 +08:00
parent 4db9c34d90
commit c053a656bd
2 changed files with 118 additions and 0 deletions
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60
third_party/fatfs-0.14/source/port/fatfs_usbd.c vendored Normal file
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#include "diskio.h"
#include "string.h"
#include "hal_flash.h"
#define FLASH_START_ADDR 0x00040000 /*addr start from 256k */
#define FLASH_BLOCK_SIZE 4096
#define FLASH_BLOCK_COUNT 64
extern const char *FR_Table[];
int USB_disk_status(void)
{
return 0;
}
int USB_disk_initialize(void)
{
return RES_OK;
}
int USB_disk_read(BYTE *buff, LBA_t sector, UINT count)
{
flash_read(FLASH_START_ADDR + sector * FLASH_BLOCK_SIZE, (uint8_t *)buff, count * FLASH_BLOCK_SIZE);
return 0;
}
int USB_disk_write(const BYTE *buff, LBA_t sector, UINT count)
{
flash_erase(FLASH_START_ADDR + sector * FLASH_BLOCK_SIZE, 4096);
flash_write(FLASH_START_ADDR + sector * FLASH_BLOCK_SIZE, (uint8_t *)buff, count * FLASH_BLOCK_SIZE);
return 0;
}
int USB_disk_ioctl(BYTE cmd, void *buff)
{
int result = 0;
switch (cmd) {
case CTRL_SYNC:
result = RES_OK;
break;
case GET_SECTOR_SIZE:
*(WORD *)buff = FLASH_BLOCK_SIZE;
result = RES_OK;
break;
case GET_BLOCK_SIZE:
*(DWORD *)buff = 1;
result = RES_OK;
break;
case GET_SECTOR_COUNT:
*(DWORD *)buff = FLASH_BLOCK_COUNT;
result = RES_OK;
break;
default:
result = RES_PARERR;
break;
}
return result;
}

58
third_party/fatfs-0.14/source/port/fatfs_usbh.c vendored Normal file
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#include "diskio.h"
#include "usbh_core.h"
#include "usbh_msc.h"
struct usbh_msc *active_msc_class;
int USB_disk_status(void)
{
return 0;
}
int USB_disk_initialize(void)
{
active_msc_class = (struct usbh_msc *)usbh_find_class_instance("/dev/sda");
if (active_msc_class == NULL) {
printf("do not find /dev/sda\r\n");
return -1;
}
return RES_OK;
}
int USB_disk_read(BYTE *buff, LBA_t sector, UINT count)
{
return usbh_msc_scsi_read10(active_msc_class, sector, buff, count);
}
int USB_disk_write(const BYTE *buff, LBA_t sector, UINT count)
{
return usbh_msc_scsi_write10(active_msc_class, sector, buff, count);
}
int USB_disk_ioctl(BYTE cmd, void *buff)
{
int result = 0;
switch (cmd) {
case CTRL_SYNC:
result = RES_OK;
break;
case GET_SECTOR_SIZE:
*(WORD *)buff = active_msc_class->blocksize;
result = RES_OK;
break;
case GET_BLOCK_SIZE:
*(DWORD *)buff = 1;
result = RES_OK;
break;
case GET_SECTOR_COUNT:
*(DWORD *)buff = active_msc_class->blocknum;
result = RES_OK;
break;
default:
result = RES_PARERR;
break;
}
return result;
}