1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2 /******************************************************************************
3  *
4  * Module Name: utglobal - Global variables for the ACPI subsystem
5  *
6  * Copyright (C) 2000 - 2019, Intel Corp.
7  *
8  *****************************************************************************/
9 
10 #define EXPORT_ACPI_INTERFACES
11 #define DEFINE_ACPI_GLOBALS
12 
13 #include <acpi/acpi.h>
14 #include "accommon.h"
15 
16 #define _COMPONENT          ACPI_UTILITIES
17 ACPI_MODULE_NAME("utglobal")
18 
19 /*******************************************************************************
20  *
21  * Static global variable initialization.
22  *
23  ******************************************************************************/
24 /* Various state name strings */
25 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
26 	"\\_S0_",
27 	"\\_S1_",
28 	"\\_S2_",
29 	"\\_S3_",
30 	"\\_S4_",
31 	"\\_S5_"
32 };
33 
34 const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
35 	"_S0W",
36 	"_S1W",
37 	"_S2W",
38 	"_S3W",
39 	"_S4W"
40 };
41 
42 const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
43 	"_S1D",
44 	"_S2D",
45 	"_S3D",
46 	"_S4D"
47 };
48 
49 /* Hex-to-ascii */
50 
51 const char acpi_gbl_lower_hex_digits[] = "0123456789abcdef";
52 const char acpi_gbl_upper_hex_digits[] = "0123456789ABCDEF";
53 
54 /*******************************************************************************
55  *
56  * Namespace globals
57  *
58  ******************************************************************************/
59 /*
60  * Predefined ACPI Names (Built-in to the Interpreter)
61  *
62  * NOTES:
63  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
64  *    during the initialization sequence.
65  * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
66  *    perform a Notify() operation on it. 09/2010: Changed to type Device.
67  *    This still allows notifies, but does not confuse host code that
68  *    searches for valid thermal_zone objects.
69  */
70 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
71 	{"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
72 	{"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
73 	{"_SB_", ACPI_TYPE_DEVICE, NULL},
74 	{"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
75 	{"_TZ_", ACPI_TYPE_DEVICE, NULL},
76 	/*
77 	 * March, 2015:
78 	 * The _REV object is in the process of being deprecated, because
79 	 * other ACPI implementations permanently return 2. Thus, it
80 	 * has little or no value. Return 2 for compatibility with
81 	 * other ACPI implementations.
82 	 */
83 	{"_REV", ACPI_TYPE_INTEGER, ACPI_CAST_PTR(char, 2)},
84 	{"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
85 	{"_GL_", ACPI_TYPE_MUTEX, ACPI_CAST_PTR(char, 1)},
86 	{"_OSI", ACPI_TYPE_METHOD, ACPI_CAST_PTR(char, 1)},
87 
88 	/* Table terminator */
89 
90 	{NULL, ACPI_TYPE_ANY, NULL}
91 };
92 
93 #if (!ACPI_REDUCED_HARDWARE)
94 /******************************************************************************
95  *
96  * Event and Hardware globals
97  *
98  ******************************************************************************/
99 
100 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
101 	/* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
102 
103 	/* ACPI_BITREG_TIMER_STATUS         */ {ACPI_REGISTER_PM1_STATUS,
104 						ACPI_BITPOSITION_TIMER_STATUS,
105 						ACPI_BITMASK_TIMER_STATUS},
106 	/* ACPI_BITREG_BUS_MASTER_STATUS    */ {ACPI_REGISTER_PM1_STATUS,
107 						ACPI_BITPOSITION_BUS_MASTER_STATUS,
108 						ACPI_BITMASK_BUS_MASTER_STATUS},
109 	/* ACPI_BITREG_GLOBAL_LOCK_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
110 						ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
111 						ACPI_BITMASK_GLOBAL_LOCK_STATUS},
112 	/* ACPI_BITREG_POWER_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
113 						ACPI_BITPOSITION_POWER_BUTTON_STATUS,
114 						ACPI_BITMASK_POWER_BUTTON_STATUS},
115 	/* ACPI_BITREG_SLEEP_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
116 						ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
117 						ACPI_BITMASK_SLEEP_BUTTON_STATUS},
118 	/* ACPI_BITREG_RT_CLOCK_STATUS      */ {ACPI_REGISTER_PM1_STATUS,
119 						ACPI_BITPOSITION_RT_CLOCK_STATUS,
120 						ACPI_BITMASK_RT_CLOCK_STATUS},
121 	/* ACPI_BITREG_WAKE_STATUS          */ {ACPI_REGISTER_PM1_STATUS,
122 						ACPI_BITPOSITION_WAKE_STATUS,
123 						ACPI_BITMASK_WAKE_STATUS},
124 	/* ACPI_BITREG_PCIEXP_WAKE_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
125 						ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
126 						ACPI_BITMASK_PCIEXP_WAKE_STATUS},
127 
128 	/* ACPI_BITREG_TIMER_ENABLE         */ {ACPI_REGISTER_PM1_ENABLE,
129 						ACPI_BITPOSITION_TIMER_ENABLE,
130 						ACPI_BITMASK_TIMER_ENABLE},
131 	/* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */ {ACPI_REGISTER_PM1_ENABLE,
132 						ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
133 						ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
134 	/* ACPI_BITREG_POWER_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
135 						ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
136 						ACPI_BITMASK_POWER_BUTTON_ENABLE},
137 	/* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
138 						ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
139 						ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
140 	/* ACPI_BITREG_RT_CLOCK_ENABLE      */ {ACPI_REGISTER_PM1_ENABLE,
141 						ACPI_BITPOSITION_RT_CLOCK_ENABLE,
142 						ACPI_BITMASK_RT_CLOCK_ENABLE},
143 	/* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */ {ACPI_REGISTER_PM1_ENABLE,
144 						ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
145 						ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
146 
147 	/* ACPI_BITREG_SCI_ENABLE           */ {ACPI_REGISTER_PM1_CONTROL,
148 						ACPI_BITPOSITION_SCI_ENABLE,
149 						ACPI_BITMASK_SCI_ENABLE},
150 	/* ACPI_BITREG_BUS_MASTER_RLD       */ {ACPI_REGISTER_PM1_CONTROL,
151 						ACPI_BITPOSITION_BUS_MASTER_RLD,
152 						ACPI_BITMASK_BUS_MASTER_RLD},
153 	/* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */ {ACPI_REGISTER_PM1_CONTROL,
154 						ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
155 						ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
156 	/* ACPI_BITREG_SLEEP_TYPE           */ {ACPI_REGISTER_PM1_CONTROL,
157 						ACPI_BITPOSITION_SLEEP_TYPE,
158 						ACPI_BITMASK_SLEEP_TYPE},
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 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
169 	/* ACPI_EVENT_PMTIMER       */ {ACPI_BITREG_TIMER_STATUS,
170 					ACPI_BITREG_TIMER_ENABLE,
171 					ACPI_BITMASK_TIMER_STATUS,
172 					ACPI_BITMASK_TIMER_ENABLE},
173 	/* ACPI_EVENT_GLOBAL        */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
174 					ACPI_BITREG_GLOBAL_LOCK_ENABLE,
175 					ACPI_BITMASK_GLOBAL_LOCK_STATUS,
176 					ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
177 	/* ACPI_EVENT_POWER_BUTTON  */ {ACPI_BITREG_POWER_BUTTON_STATUS,
178 					ACPI_BITREG_POWER_BUTTON_ENABLE,
179 					ACPI_BITMASK_POWER_BUTTON_STATUS,
180 					ACPI_BITMASK_POWER_BUTTON_ENABLE},
181 	/* ACPI_EVENT_SLEEP_BUTTON  */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
182 					ACPI_BITREG_SLEEP_BUTTON_ENABLE,
183 					ACPI_BITMASK_SLEEP_BUTTON_STATUS,
184 					ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
185 	/* ACPI_EVENT_RTC           */ {ACPI_BITREG_RT_CLOCK_STATUS,
186 					ACPI_BITREG_RT_CLOCK_ENABLE,
187 					ACPI_BITMASK_RT_CLOCK_STATUS,
188 					ACPI_BITMASK_RT_CLOCK_ENABLE},
189 };
190 #endif				/* !ACPI_REDUCED_HARDWARE */
191 
192 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_ASL_COMPILER)
193 
194 /* to_pld macro: compile/disassemble strings */
195 
196 const char *acpi_gbl_pld_panel_list[] = {
197 	"TOP",
198 	"BOTTOM",
199 	"LEFT",
200 	"RIGHT",
201 	"FRONT",
202 	"BACK",
203 	"UNKNOWN",
204 	NULL
205 };
206 
207 const char *acpi_gbl_pld_vertical_position_list[] = {
208 	"UPPER",
209 	"CENTER",
210 	"LOWER",
211 	NULL
212 };
213 
214 const char *acpi_gbl_pld_horizontal_position_list[] = {
215 	"LEFT",
216 	"CENTER",
217 	"RIGHT",
218 	NULL
219 };
220 
221 const char *acpi_gbl_pld_shape_list[] = {
222 	"ROUND",
223 	"OVAL",
224 	"SQUARE",
225 	"VERTICALRECTANGLE",
226 	"HORIZONTALRECTANGLE",
227 	"VERTICALTRAPEZOID",
228 	"HORIZONTALTRAPEZOID",
229 	"UNKNOWN",
230 	"CHAMFERED",
231 	NULL
232 };
233 #endif
234 
235 /* Public globals */
236 
237 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
238 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
239 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
240 ACPI_EXPORT_SYMBOL(acpi_gpe_count)
241 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
242