nkeynes@1097 | 1 | /**
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nkeynes@1097 | 2 | * $Id$
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nkeynes@1097 | 3 | *
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nkeynes@1097 | 4 | * Host CD/DVD drive support.
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nkeynes@1097 | 5 | *
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nkeynes@1097 | 6 | * Copyright (c) 2009 Nathan Keynes.
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nkeynes@1097 | 7 | *
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nkeynes@1097 | 8 | * This program is free software; you can redistribute it and/or modify
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nkeynes@1097 | 9 | * it under the terms of the GNU General Public License as published by
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nkeynes@1097 | 10 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@1097 | 11 | * (at your option) any later version.
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nkeynes@1097 | 12 | *
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nkeynes@1097 | 13 | * This program is distributed in the hope that it will be useful,
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nkeynes@1097 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@1097 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@1097 | 16 | * GNU General Public License for more details.
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nkeynes@1097 | 17 | */
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nkeynes@1097 | 18 |
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nkeynes@1097 | 19 | #include <stdlib.h>
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nkeynes@1099 | 20 | #include <string.h>
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nkeynes@1097 | 21 | #include <glib/gstrfuncs.h>
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nkeynes@1097 | 22 | #include <glib/gmem.h>
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nkeynes@1097 | 23 | #include "drivers/cdrom/drive.h"
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nkeynes@1097 | 24 | #include "drivers/cdrom/cdimpl.h"
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nkeynes@1097 | 25 |
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nkeynes@1097 | 26 | static GList *cdrom_drive_list;
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nkeynes@1097 | 27 |
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nkeynes@1097 | 28 | static cdrom_drive_t cdrom_drive_new( const char *name, const char *display_name, cdrom_drive_open_fn_t open_fn )
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nkeynes@1097 | 29 | {
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nkeynes@1097 | 30 | cdrom_drive_t drive = g_malloc0( sizeof(struct cdrom_drive) );
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nkeynes@1097 | 31 | drive->name = g_strdup(name);
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nkeynes@1097 | 32 | drive->display_name = g_strdup(display_name);
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nkeynes@1097 | 33 | drive->open = open_fn;
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nkeynes@1097 | 34 | return drive;
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nkeynes@1097 | 35 | }
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nkeynes@1097 | 36 |
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nkeynes@1097 | 37 | static void cdrom_drive_destroy( cdrom_drive_t drive )
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nkeynes@1097 | 38 | {
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nkeynes@1097 | 39 | g_free( (char *)drive->name );
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nkeynes@1097 | 40 | drive->name = NULL;
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nkeynes@1097 | 41 | g_free( (char *)drive->display_name );
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nkeynes@1097 | 42 | drive->display_name = NULL;
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nkeynes@1097 | 43 | g_free( drive );
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nkeynes@1097 | 44 | }
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nkeynes@1097 | 45 |
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nkeynes@1097 | 46 | GList *cdrom_drive_get_list()
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nkeynes@1097 | 47 | {
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nkeynes@1097 | 48 | return cdrom_drive_list;
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nkeynes@1097 | 49 | }
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nkeynes@1097 | 50 |
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nkeynes@1097 | 51 | cdrom_drive_t cdrom_drive_add( const char *name, const char *display_name, cdrom_drive_open_fn_t open_fn )
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nkeynes@1097 | 52 | {
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nkeynes@1097 | 53 | for( GList *ptr = cdrom_drive_list; ptr != NULL; ptr = ptr->next ) {
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nkeynes@1097 | 54 | cdrom_drive_t it = (cdrom_drive_t)ptr->data;
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nkeynes@1097 | 55 | if( strcmp(it->name, name) == 0 ) {
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nkeynes@1097 | 56 | return it;
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nkeynes@1097 | 57 | }
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nkeynes@1097 | 58 | }
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nkeynes@1097 | 59 |
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nkeynes@1097 | 60 | cdrom_drive_t new_drive = cdrom_drive_new(name,display_name,open_fn);
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nkeynes@1097 | 61 | cdrom_drive_list = g_list_append( cdrom_drive_list, new_drive );
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nkeynes@1097 | 62 | return new_drive;
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nkeynes@1097 | 63 | }
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nkeynes@1097 | 64 |
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nkeynes@1097 | 65 | gboolean cdrom_drive_remove( const char *name )
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nkeynes@1097 | 66 | {
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nkeynes@1097 | 67 | for( GList *ptr = cdrom_drive_list; ptr != NULL; ptr = ptr->next ) {
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nkeynes@1097 | 68 | cdrom_drive_t it = (cdrom_drive_t)ptr->data;
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nkeynes@1097 | 69 | if( strcmp(it->name, name) == 0 ) {
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nkeynes@1097 | 70 | cdrom_drive_list = g_list_delete_link( cdrom_drive_list, ptr );
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nkeynes@1097 | 71 | cdrom_drive_destroy(it);
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nkeynes@1097 | 72 | return TRUE;
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nkeynes@1097 | 73 | }
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nkeynes@1097 | 74 | }
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nkeynes@1097 | 75 | return FALSE;
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nkeynes@1097 | 76 | }
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nkeynes@1097 | 77 |
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nkeynes@1097 | 78 | void cdrom_drive_remove_all()
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nkeynes@1097 | 79 | {
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nkeynes@1097 | 80 | for( GList *ptr = cdrom_drive_list; ptr != NULL; ptr = ptr->next ) {
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nkeynes@1097 | 81 | cdrom_drive_destroy( (cdrom_drive_t)ptr->data );
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nkeynes@1097 | 82 | }
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nkeynes@1097 | 83 | g_list_free(cdrom_drive_list);
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nkeynes@1097 | 84 | cdrom_drive_list = NULL;
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nkeynes@1097 | 85 | }
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nkeynes@1097 | 86 |
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nkeynes@1097 | 87 | cdrom_drive_t cdrom_drive_get_index( unsigned int index )
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nkeynes@1097 | 88 | {
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nkeynes@1097 | 89 | return (cdrom_drive_t)g_list_nth_data(cdrom_drive_list, index);
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nkeynes@1097 | 90 | }
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nkeynes@1097 | 91 |
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nkeynes@1097 | 92 | cdrom_disc_t cdrom_drive_open( cdrom_drive_t drive, ERROR *err )
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nkeynes@1097 | 93 | {
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nkeynes@1097 | 94 | return drive->open(drive, err);
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nkeynes@1097 | 95 | }
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nkeynes@1097 | 96 |
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nkeynes@1097 | 97 | cdrom_drive_t cdrom_drive_find( const char *name )
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nkeynes@1097 | 98 | {
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nkeynes@1097 | 99 | const char *id = name;
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nkeynes@1097 | 100 |
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nkeynes@1097 | 101 | /* If we have no drives, just return NULL without looking, to save time */
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nkeynes@1097 | 102 | if( cdrom_drive_list == NULL )
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nkeynes@1097 | 103 | return NULL;
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nkeynes@1097 | 104 |
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nkeynes@1097 | 105 | /* Check for a url-style name */
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nkeynes@1097 | 106 | const char *lizard_lips = strstr( name, "://" );
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nkeynes@1097 | 107 | if( lizard_lips != NULL ) {
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nkeynes@1097 | 108 | id = lizard_lips + 3;
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nkeynes@1097 | 109 | int method_len = (lizard_lips-name);
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nkeynes@1097 | 110 | if( method_len > 8 )
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nkeynes@1097 | 111 | return NULL;
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nkeynes@1097 | 112 |
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nkeynes@1097 | 113 | char method[method_len + 1];
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nkeynes@1097 | 114 | memcpy( method, name, method_len );
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nkeynes@1097 | 115 | method[method_len] = '\0';
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nkeynes@1097 | 116 |
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nkeynes@1097 | 117 | if( strcasecmp( method, "file" ) != 0 &&
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nkeynes@1097 | 118 | strcasecmp( method, "dvd" ) != 0 &&
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nkeynes@1097 | 119 | strcasecmp( method, "cd" ) != 0 &&
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nkeynes@1097 | 120 | strcasecmp( method, "cdrom" ) ) {
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nkeynes@1097 | 121 | /* Anything else we don't try to recognize */
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nkeynes@1097 | 122 | return NULL;
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nkeynes@1097 | 123 | }
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nkeynes@1097 | 124 |
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nkeynes@1097 | 125 | if( *id == '\0' ) {
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nkeynes@1097 | 126 | /* Accept eg 'dvd://' as meaning 'the first cd/dvd device */
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nkeynes@1097 | 127 | return cdrom_drive_list->data;
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nkeynes@1097 | 128 | }
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nkeynes@1097 | 129 |
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nkeynes@1097 | 130 | char *endp = NULL;
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nkeynes@1097 | 131 | unsigned long index = strtoul( id, &endp, 10 );
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nkeynes@1097 | 132 | if( endp != NULL && *endp == '\0' ) {
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nkeynes@1097 | 133 | /* Accept eg 'dvd://2' as meaning 'the second cd/dvd device */
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nkeynes@1097 | 134 | return cdrom_drive_get_index(index);
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nkeynes@1097 | 135 | }
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nkeynes@1097 | 136 |
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nkeynes@1097 | 137 | /* Otherwise it must be a drive identifier, so treat it as if it didn't
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nkeynes@1097 | 138 | * have the url prefix. (fallthrough)
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nkeynes@1097 | 139 | */
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nkeynes@1097 | 140 | }
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nkeynes@1097 | 141 |
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nkeynes@1097 | 142 | for( GList *ptr = cdrom_drive_list; ptr != NULL; ptr = ptr->next ) {
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nkeynes@1097 | 143 | cdrom_drive_t drive = (cdrom_drive_t)ptr->data;
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nkeynes@1097 | 144 | if( strcmp(drive->name, id) == 0 )
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nkeynes@1097 | 145 | return drive;
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nkeynes@1097 | 146 | }
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nkeynes@1097 | 147 |
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nkeynes@1097 | 148 | return NULL;
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nkeynes@1097 | 149 | }
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