[1] | 1 | /* |
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| 2 | * ramfs.c RAMFS file system API implementation. |
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| 3 | * |
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| 4 | * Authors Mohamed Lamine Karaoui (2015) |
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| 5 | * Alain Greiner (2016) |
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| 6 | * |
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| 7 | * Copyright (c) UPMC Sorbonne Universites |
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| 8 | * |
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| 9 | * This file is part of ALMOS-MKH. |
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| 10 | * |
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| 11 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 12 | * under the terms of the GNU General Public License as published by |
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| 13 | * the Free Software Foundation; version 2.0 of the License. |
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| 14 | * |
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| 15 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 18 | * General Public License for more details. |
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| 19 | * |
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| 20 | * You should have received a copy of the GNU General Public License |
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| 21 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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| 22 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 23 | */ |
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| 24 | |
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| 25 | |
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| 26 | #include <hal_types.h> |
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| 27 | #include <hal_special.h> |
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| 28 | #include <printk.h> |
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| 29 | #include <kmem.h> |
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| 30 | #include <vfs.h> |
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| 31 | #include <ramfs.h> |
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| 32 | |
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| 33 | |
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| 34 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 35 | // RAMFS specific functions : these static functions cannot be called by the VFS |
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| 36 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 37 | |
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| 38 | |
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| 39 | |
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| 40 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 41 | // Generic API : the following functions are called by the VFS, |
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| 42 | // and must be defined by all supported file systems. |
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| 43 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 44 | |
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| 45 | //////////////////////////////////////////////////////////// |
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| 46 | error_t ramfs_inode_create( struct vfs_inode_s * vfs_inode ) |
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| 47 | { |
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| 48 | printk("\n[PANIC] %s not fully implemented yet\n", __FUNCTION__ ); |
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| 49 | hal_core_sleep(); |
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| 50 | |
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| 51 | kmem_req_t req; |
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| 52 | ramfs_inode_t * ramfs_inode; |
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| 53 | |
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| 54 | // allocate memory for ramfs inode |
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| 55 | req.type = KMEM_RAMFS_INODE; |
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| 56 | req.size = sizeof(ramfs_inode_t); |
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| 57 | req.flags = AF_KERNEL | AF_ZERO; |
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| 58 | ramfs_inode = (ramfs_inode_t *)kmem_alloc( &req ); |
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| 59 | |
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| 60 | if( ramfs_inode == NULL ) return ENOMEM; |
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| 61 | |
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| 62 | // initialise ramfs_inode TODO |
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| 63 | |
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| 64 | // link vfs_inode to ramfs_inode |
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| 65 | vfs_inode->extend = ramfs_inode; |
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| 66 | |
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| 67 | return 0; |
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| 68 | } |
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| 69 | |
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| 70 | ////////////////////////////////////////////////////// |
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| 71 | void ramfs_inode_destroy( struct vfs_inode_s * inode ) |
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| 72 | { |
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[10] | 73 | assert( false , __FUNCTION__ , "not fully implemented yet" ); |
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[1] | 74 | } |
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| 75 | |
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| 76 | ///////////////////////////////////////////////// |
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| 77 | error_t ramfs_write_page( struct page_s * page ) |
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| 78 | { |
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| 79 | printk("\n[PANIC] %s not fully implemented yet\n", __FUNCTION__ ); |
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| 80 | hal_core_sleep(); |
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| 81 | |
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| 82 | return 0; |
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| 83 | } |
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| 84 | |
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| 85 | //////////////////////////////////////////////// |
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| 86 | error_t ramfs_read_page( struct page_s * page ) |
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| 87 | { |
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| 88 | printk("\n[PANIC] %s not fully implemented yet\n", __FUNCTION__ ); |
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| 89 | hal_core_sleep(); |
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| 90 | |
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| 91 | return 0; |
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| 92 | } |
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| 93 | |
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