diff options
Diffstat (limited to 'extmod/fsusermount.c')
| -rw-r--r-- | extmod/fsusermount.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/extmod/fsusermount.c b/extmod/fsusermount.c deleted file mode 100644 index 5882aba991..0000000000 --- a/extmod/fsusermount.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * This file is part of the Micro Python project, http://micropython.org/ - * - * The MIT License (MIT) - * - * Copyright (c) 2014 Damien P. George - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "py/mpconfig.h" -#if MICROPY_FSUSERMOUNT -#include <string.h> -#include <errno.h> - -#include "py/nlr.h" -#include "py/runtime.h" -#include "py/mperrno.h" -#include "lib/fatfs/ff.h" -#include "extmod/fsusermount.h" - -fs_user_mount_t *fatfs_mount_mkfs(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args, bool mkfs) { - static const mp_arg_t allowed_args[] = { - { MP_QSTR_readonly, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} }, - { MP_QSTR_mkfs, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} }, - }; - - // parse args - mp_obj_t device = pos_args[0]; - mp_obj_t mount_point = pos_args[1]; - mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; - mp_arg_parse_all(n_args - 2, pos_args + 2, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); - - // get the mount point - mp_uint_t mnt_len; - const char *mnt_str = mp_obj_str_get_data(mount_point, &mnt_len); - - if (device == mp_const_none) { - // umount - FRESULT res = FR_NO_FILESYSTEM; - for (size_t i = 0; i < MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount)); ++i) { - fs_user_mount_t *vfs = MP_STATE_PORT(fs_user_mount)[i]; - if (vfs != NULL && !memcmp(mnt_str, vfs->str, mnt_len + 1)) { - res = f_mount(NULL, vfs->str, 0); - if (vfs->flags & FSUSER_FREE_OBJ) { - m_del_obj(fs_user_mount_t, vfs); - } - MP_STATE_PORT(fs_user_mount)[i] = NULL; - break; - } - } - if (res != FR_OK) { - nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "can't umount")); - } - return NULL; - } else { - // mount - size_t i = 0; - for (; i < MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount)); ++i) { - if (MP_STATE_PORT(fs_user_mount)[i] == NULL) { - break; - } - } - if (i == MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount))) { - nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "too many devices mounted")); - } - - // create new object - fs_user_mount_t *vfs = m_new_obj(fs_user_mount_t); - vfs->str = mnt_str; - vfs->len = mnt_len; - vfs->flags = FSUSER_FREE_OBJ; - - // load block protocol methods - mp_load_method(device, MP_QSTR_readblocks, vfs->readblocks); - mp_load_method_maybe(device, MP_QSTR_writeblocks, vfs->writeblocks); - mp_load_method_maybe(device, MP_QSTR_ioctl, vfs->u.ioctl); - if (vfs->u.ioctl[0] != MP_OBJ_NULL) { - // device supports new block protocol, so indicate it - vfs->flags |= FSUSER_HAVE_IOCTL; - } else { - // no ioctl method, so assume the device uses the old block protocol - mp_load_method_maybe(device, MP_QSTR_sync, vfs->u.old.sync); - mp_load_method(device, MP_QSTR_count, vfs->u.old.count); - } - - // Read-only device indicated by writeblocks[0] == MP_OBJ_NULL. - // User can specify read-only device by: - // 1. readonly=True keyword argument - // 2. nonexistent writeblocks method (then writeblocks[0] == MP_OBJ_NULL already) - if (args[0].u_bool) { - vfs->writeblocks[0] = MP_OBJ_NULL; - } - - // Register the vfs object so that it can be found by the FatFS driver using - // ff_get_ldnumber. We don't register it any earlier than this point in case there - // is an exception, in which case there would remain a partially mounted device. - MP_STATE_PORT(fs_user_mount)[i] = vfs; - - // mount the block device (if mkfs, only pre-mount) - FRESULT res = f_mount(&vfs->fatfs, vfs->str, !mkfs); - // check the result - if (res == FR_OK) { - if (mkfs) { - goto mkfs; - } - } else if (res == FR_NO_FILESYSTEM && args[1].u_bool) { -mkfs: - res = f_mkfs(vfs->str, 1, 0); - if (res != FR_OK) { -mkfs_error: - MP_STATE_PORT(fs_user_mount)[i] = NULL; - nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "can't mkfs")); - } - if (mkfs) { - // If requested to only mkfs, unmount pre-mounted device - res = f_mount(NULL, vfs->str, 0); - if (res != FR_OK) { - goto mkfs_error; - } - MP_STATE_PORT(fs_user_mount)[i] = NULL; - return NULL; - } - } else { - MP_STATE_PORT(fs_user_mount)[i] = NULL; - nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "can't mount")); - } - - /* - if (vfs->writeblocks[0] == MP_OBJ_NULL) { - printf("mounted read-only"); - } else { - printf("mounted read-write"); - } - DWORD nclst; - FATFS *fatfs; - f_getfree(vfs->str, &nclst, &fatfs); - printf(" on %s with %u bytes free\n", vfs->str, (uint)(nclst * fatfs->csize * 512)); - */ - return vfs; - } -} - -STATIC mp_obj_t fatfs_mount(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { - fatfs_mount_mkfs(n_args, pos_args, kw_args, false); - return mp_const_none; -} -MP_DEFINE_CONST_FUN_OBJ_KW(fsuser_mount_obj, 2, fatfs_mount); - -mp_obj_t fatfs_umount(mp_obj_t bdev_or_path_in) { - size_t i = 0; - if (MP_OBJ_IS_STR(bdev_or_path_in)) { - mp_uint_t mnt_len; - const char *mnt_str = mp_obj_str_get_data(bdev_or_path_in, &mnt_len); - for (; i < MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount)); ++i) { - fs_user_mount_t *vfs = MP_STATE_PORT(fs_user_mount)[i]; - if (vfs != NULL && !memcmp(mnt_str, vfs->str, mnt_len + 1)) { - break; - } - } - } else { - for (; i < MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount)); ++i) { - fs_user_mount_t *vfs = MP_STATE_PORT(fs_user_mount)[i]; - if (vfs != NULL && bdev_or_path_in == vfs->readblocks[1]) { - break; - } - } - } - - if (i == MP_ARRAY_SIZE(MP_STATE_PORT(fs_user_mount))) { - mp_raise_OSError(MP_EINVAL); - } - - fs_user_mount_t *vfs = MP_STATE_PORT(fs_user_mount)[i]; - FRESULT res = f_mount(NULL, vfs->str, 0); - if (vfs->flags & FSUSER_FREE_OBJ) { - m_del_obj(fs_user_mount_t, vfs); - } - MP_STATE_PORT(fs_user_mount)[i] = NULL; - if (res != FR_OK) { - nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "can't umount")); - } - return mp_const_none; -} -MP_DEFINE_CONST_FUN_OBJ_1(fsuser_umount_obj, fatfs_umount); - -STATIC mp_obj_t fatfs_mkfs(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { - fatfs_mount_mkfs(n_args, pos_args, kw_args, true); - return mp_const_none; -} -MP_DEFINE_CONST_FUN_OBJ_KW(fsuser_mkfs_obj, 2, fatfs_mkfs); - -#endif // MICROPY_FSUSERMOUNT |