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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73 | assert( false , __FUNCTION__ , "not fully implemented yet" ); |
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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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