sys/arch/sbmips/stand/common/booted_dev.c

   1 /* $NetBSD: booted_dev.c,v 1.1 2002/11/09 06:20:39 cgd Exp $ */
   2
   3 /*
   4  * Copyright 2000, 2001
   5  * Broadcom Corporation. All rights reserved.
   6  *
   7  * This software is furnished under license and may be used and copied only
   8  * in accordance with the following terms and conditions.  Subject to these
   9  * conditions, you may download, copy, install, use, modify and distribute
  10  * modified or unmodified copies of this software in source and/or binary
  11  * form. No title or ownership is transferred hereby.
  12  *
  13  * 1) Any source code used, modified or distributed must reproduce and
  14  *    retain this copyright notice and list of conditions as they appear in
  15  *    the source file.
  16  *
  17  * 2) No right is granted to use any trade name, trademark, or logo of
  18  *    Broadcom Corporation.  The "Broadcom Corporation" name may not be
  19  *    used to endorse or promote products derived from this software
  20  *    without the prior written permission of Broadcom Corporation.
  21  *
  22  * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
  23  *    WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
  24  *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
  25  *    NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
  26  *    FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
  27  *    LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  *    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  30  *    BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  31  *    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  32  *    OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <lib/libsa/stand.h>
  36 #include <lib/libkern/libkern.h>
  37
  38 #include "stand/common/common.h"
  39 #include "stand/common/cfe_api.h"
  40
  41 int     booted_dev_fd;
  42 #if defined(PRIMARY_BOOTBLOCK) || defined(UNIFIED_BOOTBLOCK)
  43 char    booted_dev_name[BOOTED_DEV_MAXNAMELEN];
  44 #endif /* defined(PRIMARY_BOOTBLOCK) || defined(UNIFIED_BOOTBLOCK) */
  45
  46 #if defined(PRIMARY_BOOTBLOCK) || defined(UNIFIED_BOOTBLOCK)
  47 int booted_dev_open(void)
  48 {
  49     if (cfe_getenv("BOOT_DEVICE",booted_dev_name,sizeof(booted_dev_name)) != 0) {
  50         return 0;
  51         }
  52
  53     booted_dev_fd = cfe_open(booted_dev_name);
  54
  55     return 1;
  56 }
  57 #endif
  58
  59 void booted_dev_close(void)
  60 {
  61     cfe_close(booted_dev_fd);
  62 }