diff options
Diffstat (limited to 'extmod/vfs_blockdev.c')
| -rw-r--r-- | extmod/vfs_blockdev.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/extmod/vfs_blockdev.c b/extmod/vfs_blockdev.c index 0bc0fdebf..916d71ca4 100644 --- a/extmod/vfs_blockdev.c +++ b/extmod/vfs_blockdev.c @@ -60,6 +60,19 @@ int mp_vfs_blockdev_read(mp_vfs_blockdev_t *self, size_t block_num, size_t num_b } } +int mp_vfs_blockdev_read_ext(mp_vfs_blockdev_t *self, size_t block_num, size_t block_off, size_t len, uint8_t *buf) { + mp_obj_array_t ar = {{&mp_type_bytearray}, BYTEARRAY_TYPECODE, 0, len, buf}; + self->readblocks[2] = MP_OBJ_NEW_SMALL_INT(block_num); + self->readblocks[3] = MP_OBJ_FROM_PTR(&ar); + self->readblocks[4] = MP_OBJ_NEW_SMALL_INT(block_off); + mp_obj_t ret = mp_call_method_n_kw(3, 0, self->readblocks); + if (ret == mp_const_none) { + return 0; + } else { + return MP_OBJ_SMALL_INT_VALUE(ret); + } +} + int mp_vfs_blockdev_write(mp_vfs_blockdev_t *self, size_t block_num, size_t num_blocks, const uint8_t *buf) { if (self->writeblocks[0] == MP_OBJ_NULL) { // read-only block device @@ -79,6 +92,24 @@ int mp_vfs_blockdev_write(mp_vfs_blockdev_t *self, size_t block_num, size_t num_ } } +int mp_vfs_blockdev_write_ext(mp_vfs_blockdev_t *self, size_t block_num, size_t block_off, size_t len, const uint8_t *buf) { + if (self->writeblocks[0] == MP_OBJ_NULL) { + // read-only block device + return -MP_EROFS; + } + + mp_obj_array_t ar = {{&mp_type_bytearray}, BYTEARRAY_TYPECODE, 0, len, (void*)buf}; + self->writeblocks[2] = MP_OBJ_NEW_SMALL_INT(block_num); + self->writeblocks[3] = MP_OBJ_FROM_PTR(&ar); + self->writeblocks[4] = MP_OBJ_NEW_SMALL_INT(block_off); + mp_obj_t ret = mp_call_method_n_kw(3, 0, self->writeblocks); + if (ret == mp_const_none) { + return 0; + } else { + return MP_OBJ_SMALL_INT_VALUE(ret); + } +} + mp_obj_t mp_vfs_blockdev_ioctl(mp_vfs_blockdev_t *self, uintptr_t cmd, uintptr_t arg) { if (self->flags & MP_BLOCKDEV_FLAG_HAVE_IOCTL) { // New protocol with ioctl |