1 /******************************************************************************
2 *
3 * Module Name: utglobal - Global variables for the ACPI subsystem
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2008, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44 #define DEFINE_ACPI_GLOBALS
45
46 #include <xen/init.h>
47 #include <xen/lib.h>
48 #include <asm/processor.h>
49 #include <acpi/acpi.h>
50
51 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
52 #define _COMPONENT ACPI_UTILITIES
53 ACPI_MODULE_NAME("utglobal")
54
55 /*******************************************************************************
56 *
57 * FUNCTION: acpi_format_exception
58 *
59 * PARAMETERS: Status - The acpi_status code to be formatted
60 *
61 * RETURN: A string containing the exception text. A valid pointer is
62 * always returned.
63 *
64 * DESCRIPTION: This function translates an ACPI exception into an ASCII string
65 * It is here instead of utxface.c so it is always present.
66 *
67 ******************************************************************************/
68
acpi_format_exception(acpi_status status)69 const char *__init acpi_format_exception(acpi_status status)
70 {
71 const char *exception = NULL;
72
73 ACPI_FUNCTION_ENTRY();
74
75 exception = acpi_ut_validate_exception(status);
76 if (!exception) {
77
78 /* Exception code was not recognized */
79
80 ACPI_ERROR((AE_INFO,
81 "Unknown exception code: %#X", status));
82
83 exception = "UNKNOWN_STATUS_CODE";
84 dump_execution_state();
85 }
86
87 return (ACPI_CAST_PTR(const char, exception));
88 }
89
90 /******************************************************************************
91 *
92 * Event and Hardware globals
93 *
94 ******************************************************************************/
95
96 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
97 /* Name Parent Register Register Bit Position Register Bit Mask */
98
99 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
100 ACPI_BITPOSITION_TIMER_STATUS,
101 ACPI_BITMASK_TIMER_STATUS},
102 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
103 ACPI_BITPOSITION_BUS_MASTER_STATUS,
104 ACPI_BITMASK_BUS_MASTER_STATUS},
105 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
106 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
107 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
108 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
109 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
110 ACPI_BITMASK_POWER_BUTTON_STATUS},
111 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
112 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
113 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
114 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
115 ACPI_BITPOSITION_RT_CLOCK_STATUS,
116 ACPI_BITMASK_RT_CLOCK_STATUS},
117 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
118 ACPI_BITPOSITION_WAKE_STATUS,
119 ACPI_BITMASK_WAKE_STATUS},
120 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
121 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
122 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
123
124 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
125 ACPI_BITPOSITION_TIMER_ENABLE,
126 ACPI_BITMASK_TIMER_ENABLE},
127 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
128 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
129 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
130 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
131 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
132 ACPI_BITMASK_POWER_BUTTON_ENABLE},
133 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
134 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
135 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
136 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
137 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
138 ACPI_BITMASK_RT_CLOCK_ENABLE},
139 /* ACPI_BITREG_WAKE_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 0, 0},
140 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
141 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
142 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
143
144 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
145 ACPI_BITPOSITION_SCI_ENABLE,
146 ACPI_BITMASK_SCI_ENABLE},
147 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
148 ACPI_BITPOSITION_BUS_MASTER_RLD,
149 ACPI_BITMASK_BUS_MASTER_RLD},
150 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
151 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
152 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
153 /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL,
154 ACPI_BITPOSITION_SLEEP_TYPE_X,
155 ACPI_BITMASK_SLEEP_TYPE_X},
156 /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL,
157 ACPI_BITPOSITION_SLEEP_TYPE_X,
158 ACPI_BITMASK_SLEEP_TYPE_X},
159 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
160 ACPI_BITPOSITION_SLEEP_ENABLE,
161 ACPI_BITMASK_SLEEP_ENABLE},
162
163 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
164 ACPI_BITPOSITION_ARB_DISABLE,
165 ACPI_BITMASK_ARB_DISABLE}
166 };
167
168 #ifdef ACPI_DEBUG_OUTPUT
169
170 /*******************************************************************************
171 *
172 * FUNCTION: acpi_ut_get_region_name
173 *
174 * PARAMETERS: None.
175 *
176 * RETURN: Status
177 *
178 * DESCRIPTION: Translate a Space ID into a name string (Debug only)
179 *
180 ******************************************************************************/
181
182 /* Region type decoding */
183
184 static const char *const acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
185 "SystemMemory",
186 "SystemIO",
187 "PCI_Config",
188 "EmbeddedControl",
189 "SMBus",
190 "CMOS",
191 "PCIBARTarget",
192 "DataTable"
193 };
194
acpi_ut_get_region_name(u8 space_id)195 const char *acpi_ut_get_region_name(u8 space_id)
196 {
197
198 if (space_id >= ACPI_USER_REGION_BEGIN) {
199 return ("UserDefinedRegion");
200 } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
201 return ("InvalidSpaceId");
202 }
203
204 return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
205 }
206
207 #endif
208