1    /*
2     * Some or all of this work - Copyright (c) 2006 - 2021, Intel Corp.
3     * All rights reserved.
4     *
5     * Redistribution and use in source and binary forms, with or without modification,
6     * are permitted provided that the following conditions are met:
7     *
8     * Redistributions of source code must retain the above copyright notice,
9     * this list of conditions and the following disclaimer.
10     * Redistributions in binary form must reproduce the above copyright notice,
11     * this list of conditions and the following disclaimer in the documentation
12     * and/or other materials provided with the distribution.
13     * Neither the name of Intel Corporation nor the names of its contributors
14     * may be used to endorse or promote products derived from this software
15     * without specific prior written permission.
16     *
17     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18     * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20     * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
25     * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
26     * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27     */
28    /*
29     * Bug 220:
30     *
31     * SUMMARY: Inconsistent "Access is available/unavailable" _REG method calls
32     */
33    Device (D220)
34    {
35        Name (ACTV, 0x00)
36        Name (DACT, 0x00)
37        Name (NERR, 0x00)
38        Method (_REG, 2, NotSerialized)  // _REG: Region Availability
39        {
40            Debug = "_REG:"
41            Debug = Arg0
42            Debug = Arg1
43            If (Arg0)
44            {
45                NERR++
46            }
47            ElseIf ((Arg1 > 0x01))
48            {
49                NERR++
50            }
51            ElseIf (Arg1)
52            {
53                ACTV++
54            }
55            Else
56            {
57                DACT++
58            }
59        }
60
61        OperationRegion (OPR0, SystemMemory, 0x2000, 0x0100)
62    }
63
64    Method (M108, 0, NotSerialized)
65    {
66        If (\D220.NERR)
67        {
68            ERR (__METHOD__, ZFFF, __LINE__, 0x00, 0x00, \D220.NERR, 0x00)
69        }
70
71        Local0 = (\D220.ACTV - \D220.DACT)
72        If ((Local0 != 0x01))
73        {
74            ERR (__METHOD__, ZFFF, __LINE__, 0x00, 0x00, Local0, 0x01)
75        }
76    }
77