busybox/util-linux/volume_id/unused_nvidia_raid.c
Sven-Göran Bergh 15d0a860e9 volume_id: Adopt to new config style.
Config instructions for util-linux/volume_id are moved into the
source files according to the new config feature.

No code change.

Signed-off-by: Sven-Göran Bergh <sgb@systemasis.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-07-31 15:57:59 +02:00

68 lines
1.9 KiB
C

/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
//kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_NVIDIARAID) += nvidia_raid.o
//config:
//config:### config FEATURE_VOLUMEID_NVIDIARAID
//config:### bool "nvidia raid"
//config:### default y
//config:### depends on VOLUMEID
//config:### help
//config:### TODO
//config:
#include "volume_id_internal.h"
struct nvidia_meta {
uint8_t vendor[8];
uint32_t size;
uint32_t chksum;
uint16_t version;
} PACKED;
#define NVIDIA_SIGNATURE "NVIDIA"
int FAST_FUNC volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size)
{
uint64_t meta_off;
struct nvidia_meta *nv;
dbg("probing at offset 0x%llx, size 0x%llx",
(unsigned long long) off, (unsigned long long) size);
if (size < 0x10000)
return -1;
meta_off = ((size / 0x200)-2) * 0x200;
nv = volume_id_get_buffer(id, off + meta_off, 0x200);
if (nv == NULL)
return -1;
if (memcmp(nv->vendor, NVIDIA_SIGNATURE, sizeof(NVIDIA_SIGNATURE)-1) != 0)
return -1;
// volume_id_set_usage(id, VOLUME_ID_RAID);
// snprintf(id->type_version, sizeof(id->type_version)-1, "%u", le16_to_cpu(nv->version));
// id->type = "nvidia_raid_member";
return 0;
}