diff options
| author | hathach <thach@tinyusb.org> | 2018-07-05 17:43:38 +0700 |
|---|---|---|
| committer | hathach <thach@tinyusb.org> | 2018-07-05 17:43:38 +0700 |
| commit | 0806c0a38b9da03cbb1d55dd689f1798b4619339 (patch) | |
| tree | bc2837fbe7c8c3e77669566883b1dc9ff3c90f64 | |
| parent | 4e5d9a029df28be188fc4a433bccfa85aa495e63 (diff) | |
update fatfs cached sector when running write10
| -rw-r--r-- | ports/nrf/usb/usb_msc_flash.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/ports/nrf/usb/usb_msc_flash.c b/ports/nrf/usb/usb_msc_flash.c index dc88d031c..9c7445050 100644 --- a/ports/nrf/usb/usb_msc_flash.c +++ b/ports/nrf/usb/usb_msc_flash.c @@ -39,6 +39,12 @@ #include "tusb.h" #include "internal_flash.h" +// For updating fatfs's cache +#include "extmod/vfs.h" +#include "extmod/vfs_fat.h" +#include "lib/oofatfs/ff.h" +#include "py/mpstate.h" + /*------------------------------------------------------------------*/ /* MACRO TYPEDEF CONSTANT ENUM *------------------------------------------------------------------*/ @@ -159,6 +165,13 @@ int32_t tud_msc_write10_cb (uint8_t rhport, uint8_t lun, uint32_t lba, uint32_t // bufsize <= CFG_TUD_MSC_BUFSIZE (4096) internal_flash_write_blocks(buffer, lba, block_count); + // update fatfs's cache if address matches + fs_user_mount_t* vfs = MP_STATE_VM(vfs_mount_table)->obj; + + if ( (lba <= vfs->fatfs.winsect) && (vfs->fatfs.winsect <= (lba + bufsize/MSC_FLASH_BLOCK_SIZE)) ) { + memcpy(vfs->fatfs.win, buffer + MSC_FLASH_BLOCK_SIZE*(vfs->fatfs.winsect-lba), MSC_FLASH_BLOCK_SIZE); + } + return block_count*MSC_FLASH_BLOCK_SIZE; } |