2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2011 Fabien Thomas <fabient@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44 struct resource *wd_res;
46 eventhandler_tag ev_tag;
50 #define VENDORID_VIA 0x1106
51 #define DEVICEID_VT8251 0x3287
52 #define DEVICEID_CX700 0x8324
53 #define DEVICEID_VX800 0x8353
54 #define DEVICEID_VX855 0x8409
55 #define DEVICEID_VX900 0x8410
57 #define VIAWD_CONFIG_BASE 0xE8
59 #define VIAWD_MEM_LEN 8
61 #define VIAWD_MEM_CTRL 0x00
62 #define VIAWD_MEM_CTRL_TRIGGER 0x000000080
63 #define VIAWD_MEM_CTRL_DISABLE 0x000000008
64 #define VIAWD_MEM_CTRL_POWEROFF 0x000000004
65 #define VIAWD_MEM_CTRL_FIRED 0x000000002
66 #define VIAWD_MEM_CTRL_ENABLE 0x000000001
68 #define VIAWD_MEM_COUNT 0x04
70 #define VIAWD_MEM_COUNT_MIN 1
71 #define VIAWD_MEM_COUNT_MAX 1023
73 #define VIAWD_TIMEOUT_SHUTDOWN (5 * 60)