| [1] | 1 | /*
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| 2 | * sysfs/sysfs_context.c - sysfs context related operations
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| 3 | *
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| 4 | * Copyright (c) 2008,2009,2010,2011,2012 Ghassan Almaless
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| 5 | * Copyright (c) 2011,2012 UPMC Sorbonne Universites
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| 6 | *
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| 7 | * This file is part of ALMOS-kernel.
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| 8 | *
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| 9 | * ALMOS-kernel is free software; you can redistribute it and/or modify it
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| 10 | * under the terms of the GNU General Public License as published by
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| 11 | * the Free Software Foundation; version 2.0 of the License.
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| 12 | *
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| 13 | * ALMOS-kernel is distributed in the hope that it will be useful, but
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| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 16 | * General Public License for more details.
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| 17 | *
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| 18 | * You should have received a copy of the GNU General Public License
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| 19 | * along with ALMOS-kernel; if not, write to the Free Software Foundation,
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| 20 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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| 21 | */
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| 22 |
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| 23 | #include <device.h>
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| 24 | #include <driver.h>
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| 25 | #include <kmem.h>
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| 26 | #include <string.h>
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| 27 | #include <vfs.h>
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| 28 | #include <errno.h>
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| 29 | #include <metafs.h>
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| 30 |
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| 31 | #include <sysfs.h>
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| 32 | #include <sysfs-private.h>
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| 33 |
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| 34 | sysfs_entry_t sysfs_root_entry;
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| 35 |
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| 36 | VFS_CREATE_CONTEXT(sysfs_create_context)
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| 37 | {
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| 38 | context->ctx_type = FS_TYPE_SYSFS;
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| 39 | VFS_SET(context->ctx_flags, VFS_FS_LOCAL);
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| 40 | context->ctx_op = (struct vfs_context_op_s *) &sysfs_ctx_op;
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| 41 | context->ctx_inode_op = (struct vfs_inode_op_s *) &sysfs_i_op;
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| 42 | context->ctx_file_op = (struct vfs_file_op_s *) &sysfs_f_op;
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| 43 | return 0;
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| 44 | }
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| 45 |
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| 46 | VFS_DESTROY_CONTEXT(sysfs_destroy_context)
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| 47 | {
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| 48 | return 0;
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| 49 | }
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| 50 |
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| 51 | VFS_READ_ROOT(sysfs_read_root)
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| 52 | {
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| 53 | struct sysfs_node_s *info;
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| 54 |
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| 55 | root->i_links = 1;
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| 56 | root->i_size = 0;
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| 57 | root->i_attr = VFS_DIR;
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| 58 | root->i_number = vfs_inum_new(context);
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| 59 |
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| 60 | //info has been allocated by sysfs_init
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| 61 | info = root->i_pv;
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| 62 | info->node = &sysfs_root_entry.node;
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| 63 |
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| 64 | return 0;
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| 65 | }
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| 66 |
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| 67 | VFS_REPLI_ROOT(sysfs_repli_root)
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| 68 | {
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| 69 | struct sysfs_node_s *info;
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| 70 |
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| 71 | info = root->i_pv;
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| 72 | info->node = &sysfs_root_entry.node;
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| 73 |
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| 74 | return 0;
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| 75 | }
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| 76 |
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| 77 | VFS_WRITE_ROOT(sysfs_write_root)
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| 78 | {
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| 79 | return 0;
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| 80 | }
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| 81 |
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| 82 | const struct vfs_context_op_s sysfs_ctx_op =
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| 83 | {
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| 84 | .create = sysfs_create_context,
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| 85 | .destroy = sysfs_destroy_context,
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| 86 | .read_root = sysfs_read_root,
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| 87 | .repli_root = sysfs_repli_root,
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| 88 | .write_root = sysfs_write_root
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| 89 | };
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