xref: /openbmc/linux/drivers/acpi/acpica/utglobal.c (revision e0bf6c5c)
1 /******************************************************************************
2  *
3  * Module Name: utglobal - Global variables for the ACPI subsystem
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2015, 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 EXPORT_ACPI_INTERFACES
45 #define DEFINE_ACPI_GLOBALS
46 
47 #include <acpi/acpi.h>
48 #include "accommon.h"
49 
50 #define _COMPONENT          ACPI_UTILITIES
51 ACPI_MODULE_NAME("utglobal")
52 
53 /*******************************************************************************
54  *
55  * Static global variable initialization.
56  *
57  ******************************************************************************/
58 /* Various state name strings */
59 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
60 	"\\_S0_",
61 	"\\_S1_",
62 	"\\_S2_",
63 	"\\_S3_",
64 	"\\_S4_",
65 	"\\_S5_"
66 };
67 
68 const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
69 	"_S0W",
70 	"_S1W",
71 	"_S2W",
72 	"_S3W",
73 	"_S4W"
74 };
75 
76 const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
77 	"_S1D",
78 	"_S2D",
79 	"_S3D",
80 	"_S4D"
81 };
82 
83 /*******************************************************************************
84  *
85  * Namespace globals
86  *
87  ******************************************************************************/
88 /*
89  * Predefined ACPI Names (Built-in to the Interpreter)
90  *
91  * NOTES:
92  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
93  *    during the initialization sequence.
94  * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
95  *    perform a Notify() operation on it. 09/2010: Changed to type Device.
96  *    This still allows notifies, but does not confuse host code that
97  *    searches for valid thermal_zone objects.
98  */
99 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
100 	{"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
101 	{"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
102 	{"_SB_", ACPI_TYPE_DEVICE, NULL},
103 	{"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
104 	{"_TZ_", ACPI_TYPE_DEVICE, NULL},
105 	{"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
106 	{"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
107 	{"_GL_", ACPI_TYPE_MUTEX, (char *)1},
108 
109 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
110 	{"_OSI", ACPI_TYPE_METHOD, (char *)1},
111 #endif
112 
113 	/* Table terminator */
114 
115 	{NULL, ACPI_TYPE_ANY, NULL}
116 };
117 
118 #if (!ACPI_REDUCED_HARDWARE)
119 /******************************************************************************
120  *
121  * Event and Hardware globals
122  *
123  ******************************************************************************/
124 
125 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
126 	/* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
127 
128 	/* ACPI_BITREG_TIMER_STATUS         */ {ACPI_REGISTER_PM1_STATUS,
129 						ACPI_BITPOSITION_TIMER_STATUS,
130 						ACPI_BITMASK_TIMER_STATUS},
131 	/* ACPI_BITREG_BUS_MASTER_STATUS    */ {ACPI_REGISTER_PM1_STATUS,
132 						ACPI_BITPOSITION_BUS_MASTER_STATUS,
133 						ACPI_BITMASK_BUS_MASTER_STATUS},
134 	/* ACPI_BITREG_GLOBAL_LOCK_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
135 						ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
136 						ACPI_BITMASK_GLOBAL_LOCK_STATUS},
137 	/* ACPI_BITREG_POWER_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
138 						ACPI_BITPOSITION_POWER_BUTTON_STATUS,
139 						ACPI_BITMASK_POWER_BUTTON_STATUS},
140 	/* ACPI_BITREG_SLEEP_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
141 						ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
142 						ACPI_BITMASK_SLEEP_BUTTON_STATUS},
143 	/* ACPI_BITREG_RT_CLOCK_STATUS      */ {ACPI_REGISTER_PM1_STATUS,
144 						ACPI_BITPOSITION_RT_CLOCK_STATUS,
145 						ACPI_BITMASK_RT_CLOCK_STATUS},
146 	/* ACPI_BITREG_WAKE_STATUS          */ {ACPI_REGISTER_PM1_STATUS,
147 						ACPI_BITPOSITION_WAKE_STATUS,
148 						ACPI_BITMASK_WAKE_STATUS},
149 	/* ACPI_BITREG_PCIEXP_WAKE_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
150 						ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
151 						ACPI_BITMASK_PCIEXP_WAKE_STATUS},
152 
153 	/* ACPI_BITREG_TIMER_ENABLE         */ {ACPI_REGISTER_PM1_ENABLE,
154 						ACPI_BITPOSITION_TIMER_ENABLE,
155 						ACPI_BITMASK_TIMER_ENABLE},
156 	/* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */ {ACPI_REGISTER_PM1_ENABLE,
157 						ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
158 						ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
159 	/* ACPI_BITREG_POWER_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
160 						ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
161 						ACPI_BITMASK_POWER_BUTTON_ENABLE},
162 	/* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
163 						ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
164 						ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
165 	/* ACPI_BITREG_RT_CLOCK_ENABLE      */ {ACPI_REGISTER_PM1_ENABLE,
166 						ACPI_BITPOSITION_RT_CLOCK_ENABLE,
167 						ACPI_BITMASK_RT_CLOCK_ENABLE},
168 	/* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */ {ACPI_REGISTER_PM1_ENABLE,
169 						ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
170 						ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
171 
172 	/* ACPI_BITREG_SCI_ENABLE           */ {ACPI_REGISTER_PM1_CONTROL,
173 						ACPI_BITPOSITION_SCI_ENABLE,
174 						ACPI_BITMASK_SCI_ENABLE},
175 	/* ACPI_BITREG_BUS_MASTER_RLD       */ {ACPI_REGISTER_PM1_CONTROL,
176 						ACPI_BITPOSITION_BUS_MASTER_RLD,
177 						ACPI_BITMASK_BUS_MASTER_RLD},
178 	/* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */ {ACPI_REGISTER_PM1_CONTROL,
179 						ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
180 						ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
181 	/* ACPI_BITREG_SLEEP_TYPE           */ {ACPI_REGISTER_PM1_CONTROL,
182 						ACPI_BITPOSITION_SLEEP_TYPE,
183 						ACPI_BITMASK_SLEEP_TYPE},
184 	/* ACPI_BITREG_SLEEP_ENABLE         */ {ACPI_REGISTER_PM1_CONTROL,
185 						ACPI_BITPOSITION_SLEEP_ENABLE,
186 						ACPI_BITMASK_SLEEP_ENABLE},
187 
188 	/* ACPI_BITREG_ARB_DIS              */ {ACPI_REGISTER_PM2_CONTROL,
189 						ACPI_BITPOSITION_ARB_DISABLE,
190 						ACPI_BITMASK_ARB_DISABLE}
191 };
192 
193 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
194 	/* ACPI_EVENT_PMTIMER       */ {ACPI_BITREG_TIMER_STATUS,
195 					ACPI_BITREG_TIMER_ENABLE,
196 					ACPI_BITMASK_TIMER_STATUS,
197 					ACPI_BITMASK_TIMER_ENABLE},
198 	/* ACPI_EVENT_GLOBAL        */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
199 					ACPI_BITREG_GLOBAL_LOCK_ENABLE,
200 					ACPI_BITMASK_GLOBAL_LOCK_STATUS,
201 					ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
202 	/* ACPI_EVENT_POWER_BUTTON  */ {ACPI_BITREG_POWER_BUTTON_STATUS,
203 					ACPI_BITREG_POWER_BUTTON_ENABLE,
204 					ACPI_BITMASK_POWER_BUTTON_STATUS,
205 					ACPI_BITMASK_POWER_BUTTON_ENABLE},
206 	/* ACPI_EVENT_SLEEP_BUTTON  */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
207 					ACPI_BITREG_SLEEP_BUTTON_ENABLE,
208 					ACPI_BITMASK_SLEEP_BUTTON_STATUS,
209 					ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
210 	/* ACPI_EVENT_RTC           */ {ACPI_BITREG_RT_CLOCK_STATUS,
211 					ACPI_BITREG_RT_CLOCK_ENABLE,
212 					ACPI_BITMASK_RT_CLOCK_STATUS,
213 					ACPI_BITMASK_RT_CLOCK_ENABLE},
214 };
215 #endif				/* !ACPI_REDUCED_HARDWARE */
216 
217 /* Public globals */
218 
219 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
220 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
221 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
222 ACPI_EXPORT_SYMBOL(acpi_gpe_count)
223 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
224