Home | History | Annotate | Line # | Download | only in linux
linux_dmi.c revision 1.1.2.2 
      1 /*	$NetBSD: linux_dmi.c,v 1.1.2.2 2014/05/18 17:46:01 rmind Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 2014 NONAKA Kimihiro <nonaka (at) netbsd.org>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: linux_dmi.c,v 1.1.2.2 2014/05/18 17:46:01 rmind Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/types.h>
     33 #include <sys/pmf.h>
     34 
     35 #include <linux/dmi.h>
     36 
     37 static bool
     38 dmi_found(const struct dmi_system_id *dsi)
     39 {
     40 	const char *p;
     41 	int i, slot;
     42 
     43 	for (i = 0; i < __arraycount(dsi->matches); i++) {
     44 		p = NULL;
     45 		slot = dsi->matches[i].slot;
     46 		switch (slot) {
     47 		case DMI_NONE:
     48 			continue;
     49 		case DMI_BIOS_VENDOR:
     50 			p = pmf_get_platform("bios-vendor");
     51 			break;
     52 		case DMI_BIOS_VERSION:
     53 			p = pmf_get_platform("bios-version");
     54 			break;
     55 		case DMI_BIOS_DATE:
     56 			p = pmf_get_platform("bios-date");
     57 			break;
     58 		case DMI_SYS_VENDOR:
     59 			p = pmf_get_platform("system-vendor");
     60 			break;
     61 		case DMI_PRODUCT_NAME:
     62 			p = pmf_get_platform("system-product");
     63 			break;
     64 		case DMI_PRODUCT_VERSION:
     65 			p = pmf_get_platform("system-version");
     66 			break;
     67 		case DMI_PRODUCT_SERIAL:
     68 			p = pmf_get_platform("system-serial");
     69 			break;
     70 		case DMI_PRODUCT_UUID:
     71 			p = pmf_get_platform("system-uuid");
     72 			break;
     73 		case DMI_BOARD_VENDOR:
     74 			p = pmf_get_platform("board-vendor");
     75 			break;
     76 		case DMI_BOARD_NAME:
     77 			p = pmf_get_platform("board-product");
     78 			break;
     79 		case DMI_BOARD_VERSION:
     80 			p = pmf_get_platform("board-version");
     81 			break;
     82 		case DMI_BOARD_SERIAL:
     83 			p = pmf_get_platform("board-serial");
     84 			break;
     85 		case DMI_BOARD_ASSET_TAG:
     86 			p = pmf_get_platform("board-asset-tag");
     87 			break;
     88 		case DMI_CHASSIS_VENDOR:
     89 		case DMI_CHASSIS_TYPE:
     90 		case DMI_CHASSIS_VERSION:
     91 		case DMI_CHASSIS_SERIAL:
     92 		case DMI_CHASSIS_ASSET_TAG:
     93 			return false;
     94 		case DMI_STRING_MAX:
     95 		default:
     96 			aprint_error("%s: unknown DMI field(%d)\n", __func__,
     97 			    slot);
     98 			return false;
     99 		}
    100 		if (p == NULL || strcmp(p, dsi->matches[i].substr))
    101 			return false;
    102 	}
    103 	return true;
    104 }
    105 
    106 int
    107 dmi_check_system(const struct dmi_system_id *sysid)
    108 {
    109 	const struct dmi_system_id *dsi;
    110 	int num = 0;
    111 
    112 	for (dsi = sysid; dsi->matches[0].slot != DMI_NONE; dsi++) {
    113 		if (dmi_found(dsi)) {
    114 			num++;
    115 			if (dsi->callback && dsi->callback(dsi))
    116 				break;
    117 		}
    118 	}
    119 	return num;
    120 }
    121