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1 /*
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2 * Copyright (C) 2001-2003 Hewlett-Packard Co.
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3 * Contributed by Stephane Eranian <eranian@hpl.hp.com>
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4 *
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5 * This file is part of the ELILO, the EFI Linux boot loader.
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6 *
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7 * ELILO is free software; you can redistribute it and/or modify
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8 * it under the terms of the GNU General Public License as published by
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9 * the Free Software Foundation; either version 2, or (at your option)
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10 * any later version.
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11 *
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12 * ELILO is distributed in the hope that it will be useful,
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 * GNU General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU General Public License
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18 * along with ELILO; see the file COPYING. If not, write to the Free
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19 * Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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20 * 02111-1307, USA.
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21 *
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22 * Please check out the elilo.txt for complete documentation on how
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23 * to use this program.
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24 */
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25
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26 #include <efi.h>
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27 #include <efilib.h>
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28
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29 #include "elilo.h"
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30 #include "loader.h"
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31
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32 extern loader_ops_t plain_loader;
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33 extern loader_ops_t gzip_loader;
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34
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35 static loader_ops_t *ldops_list;
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36
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37 loader_ops_t *
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38 loader_probe(CHAR16 *kname)
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39 {
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40 loader_ops_t *ops;
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41 UINTN n = 0;
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42
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43 for (ops= ldops_list; ops; ops = ops->next) {
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44 n++;
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45 VERB_PRT(3, Print(L"Probing loader: %s\n", ops->ld_name));
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46 if (ops->ld_probe(kname) == 0) {
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47 return ops;
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48 }
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49 }
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50 if (!n) {
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51 ERR_PRT((L"No loaders registered"));
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52 }
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53 return NULL;
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54 }
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55
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56 INTN
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57 loader_register(loader_ops_t *ldops)
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58 {
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59 if (ldops == NULL) return -1;
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60
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61 /* cheap sanity check */
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62 if (ldops->next) {
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63 ERR_PRT((L"loader %s is already registered", ldops->ld_name));
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64 return -1;
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65 }
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66
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67 ldops->next = ldops_list;
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68 ldops_list = ldops;
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69
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70 VERB_PRT(3, Print(L"New loader registered: %s\n", ldops->ld_name));
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71
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72 return 0;
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73 }
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74
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