1 /******************************************************************************
2 *
3 * Module Name: ahpredef - Table of all known ACPI predefined names
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2014, 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
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33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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42 */
43
44 #include "acpi.h"
45 #include "accommon.h"
46
47 /*
48 * iASL only needs a partial table (short descriptions only).
49 * AcpiHelp needs the full table.
50 */
51 #ifdef ACPI_ASL_COMPILER
52 #define AH_PREDEF(Name, ShortDesc, LongDesc) {Name, ShortDesc}
53 #else
54 #define AH_PREDEF(Name, ShortDesc, LongDesc) {Name, ShortDesc, LongDesc}
55 #endif
56
57 /*
58 * Predefined ACPI names, with short description and return value.
59 * This table was extracted directly from the ACPI specification.
60 */
61 const AH_PREDEFINED_NAME AslPredefinedInfo[] =
62 {
63 AH_PREDEF ("_ACx", "Active Cooling", "Returns the active cooling policy threshold values"),
64 AH_PREDEF ("_ADR", "Address", "Returns address of a device on parent bus, and resource field"),
65 AH_PREDEF ("_AEI", "ACPI Event Interrupts", "Returns a list of GPIO events to be used as ACPI events"),
66 AH_PREDEF ("_ALC", "Ambient Light Chromaticity", "Returns the ambient light color chromaticity"),
67 AH_PREDEF ("_ALI", "Ambient Light Illuminance", "Returns the ambient light brightness"),
68 AH_PREDEF ("_ALN", "Alignment", "Base alignment, Resource Descriptor field"),
69 AH_PREDEF ("_ALP", "Ambient Light Polling", "Returns the ambient light sensor polling frequency"),
70 AH_PREDEF ("_ALR", "Ambient Light Response", "Returns the ambient light brightness to display brightness mappings"),
71 AH_PREDEF ("_ALT", "Ambient Light Temperature", "Returns the ambient light color temperature"),
72 AH_PREDEF ("_ALx", "Active List", "Returns a list of active cooling device objects"),
73 AH_PREDEF ("_ART", "Active Cooling Relationship Table", "Returns thermal relationship information between platform devices and fan devices"),
74 AH_PREDEF ("_ASI", "Address Space Id", "Resource Descriptor field"),
75 AH_PREDEF ("_ASZ", "Access Size", "Resource Descriptor field"),
76 AH_PREDEF ("_ATT", "Type-Specific Attribute", "Resource Descriptor field"),
77 AH_PREDEF ("_BAS", "Base Address", "Range base address, Resource Descriptor field"),
78 AH_PREDEF ("_BBN", "BIOS Bus Number", "Returns the PCI bus number returned by the BIOS"),
79 AH_PREDEF ("_BCL", "Brightness Control Levels", "Returns a list of supported brightness control levels"),
80 AH_PREDEF ("_BCM", "Brightness Control Method", "Sets the brightness level of the display device"),
81 AH_PREDEF ("_BCT", "Battery Charge Time", "Returns time remaining to complete charging battery"),
82 AH_PREDEF ("_BDN", "BIOS Dock Name", "Returns the Dock ID returned by the BIOS"),
83 AH_PREDEF ("_BFS", "Back From Sleep", "Inform AML of a wake event"),
84 AH_PREDEF ("_BIF", "Battery Information", "Returns a Control Method Battery information block"),
85 AH_PREDEF ("_BIX", "Battery Information Extended", "Returns a Control Method Battery extended information block"),
86 AH_PREDEF ("_BLT", "Battery Level Threshold", "Set battery level threshold preferences"),
87 AH_PREDEF ("_BM_", "Bus Master", "Resource Descriptor field"),
88 AH_PREDEF ("_BMA", "Battery Measurement Averaging Interval", "Sets battery measurement averaging interval"),
89 AH_PREDEF ("_BMC", "Battery Maintenance Control", "Sets battery maintenance and control features"),
90 AH_PREDEF ("_BMD", "Battery Maintenance Data", "Returns battery maintenance, control, and state data"),
91 AH_PREDEF ("_BMS", "Battery Measurement Sampling Time", "Sets the battery measurement sampling time"),
92 AH_PREDEF ("_BQC", "Brightness Query Current", "Returns the current display brightness level"),
93 AH_PREDEF ("_BST", "Battery Status", "Returns a Control Method Battery status block"),
94 AH_PREDEF ("_BTM", "Battery Time", "Returns the battery runtime"),
95 AH_PREDEF ("_BTP", "Battery Trip Point", "Sets a Control Method Battery trip point"),
96 AH_PREDEF ("_CBA", "Configuration Base Address", "Sets the base address for a PCI Express host bridge"),
97 AH_PREDEF ("_CDM", "Clock Domain", "Returns a logical processor's clock domain identifier"),
98 AH_PREDEF ("_CID", "Compatible ID", "Returns a device's Plug and Play Compatible ID list"),
99 AH_PREDEF ("_CLS", "Class Code", "Returns PCI class code and subclass"),
100 AH_PREDEF ("_CPC", "Continuous Performance Control", "Returns a list of performance control interfaces"),
101 AH_PREDEF ("_CRS", "Current Resource Settings", "Returns the current resource settings for a device"),
102 AH_PREDEF ("_CRT", "Critical Temperature", "Returns the shutdown critical temperature"),
103 AH_PREDEF ("_CSD", "C-State Dependencies", "Returns a list of C-state dependencies"),
104 AH_PREDEF ("_CST", "C-States", "Returns a list of supported C-states"),
105 AH_PREDEF ("_CWS", "Clear Wake Alarm Status", "Clear the status of wake alarms"),
106 AH_PREDEF ("_DBT", "Debounce Timeout", "Timeout value, Resource Descriptor field"),
107 AH_PREDEF ("_DCK", "Dock Present", "Sets docking isolation. Presence indicates device is a docking station"),
108 AH_PREDEF ("_DCS", "Display Current Status", "Returns status of the display output device"),
109 AH_PREDEF ("_DDC", "Display Data Current", "Returns the EDID for the display output device"),
110 AH_PREDEF ("_DDN", "DOS Device Name", "Returns a device logical name"),
111 AH_PREDEF ("_DEC", "Decode", "Device decoding type, Resource Descriptor field"),
112 AH_PREDEF ("_DEP", "Dependencies", "Returns a list of operation region dependencies"),
113 AH_PREDEF ("_DGS", "Display Graphics State", "Return the current state of the output device"),
114 AH_PREDEF ("_DIS", "Disable Device", "Disables a device"),
115 AH_PREDEF ("_DLM", "Device Lock Mutex", "Defines mutex for OS/AML sharing"),
116 AH_PREDEF ("_DMA", "Direct Memory Access", "Returns device current resources for DMA transactions, and resource field"),
117 AH_PREDEF ("_DOD", "Display Output Devices", "Enumerate all devices attached to the display adapter"),
118 AH_PREDEF ("_DOS", "Disable Output Switching", "Sets the display output switching mode"),
119 AH_PREDEF ("_DPL", "Device Selection Polarity", "Polarity of Device Selection signal, Resource Descriptor field"),
120 AH_PREDEF ("_DRS", "Drive Strength", "Drive Strength setting for GPIO connection, Resource Descriptor field"),
121 AH_PREDEF ("_DSM", "Device-Specific Method", "Executes device-specific functions"),
122 AH_PREDEF ("_DSS", "Device Set State", "Sets the display device state"),
123 AH_PREDEF ("_DSW", "Device Sleep Wake", "Sets the sleep and wake transition states for a device"),
124 AH_PREDEF ("_DTI", "Device Temperature Indication", "Conveys native device temperature to the platform"),
125 AH_PREDEF ("_Exx", "Edge-Triggered GPE", "Method executed as a result of a general-purpose event"),
126 AH_PREDEF ("_EC_", "Embedded Controller", "returns EC offset and query information"),
127 AH_PREDEF ("_EDL", "Eject Device List", "Returns a list of devices that are dependent on a device (docking)"),
128 AH_PREDEF ("_EJD", "Ejection Dependent Device", "Returns the name of dependent (parent) device (docking)"),
129 AH_PREDEF ("_EJx", "Eject Device", "Begin or cancel a device ejection request (docking)"),
130 AH_PREDEF ("_END", "Endianness", "Endian orientation, Resource Descriptor field"),
131 AH_PREDEF ("_EVT", "Event", "Event method for GPIO events"),
132 AH_PREDEF ("_FDE", "Floppy Disk Enumerate", "Returns floppy disk configuration information"),
133 AH_PREDEF ("_FDI", "Floppy Drive Information", "Returns a floppy drive information block"),
134 AH_PREDEF ("_FDM", "Floppy Drive Mode", "Sets a floppy drive speed"),
135 AH_PREDEF ("_FIF", "Fan Information", "Returns fan device information"),
136 AH_PREDEF ("_FIX", "Fixed Register Resource Provider", "Returns a list of devices that implement FADT register blocks"),
137 AH_PREDEF ("_FLC", "Flow Control", "Flow control, Resource Descriptor field"),
138 AH_PREDEF ("_FPS", "Fan Performance States", "Returns a list of supported fan performance states"),
139 AH_PREDEF ("_FSL", "Fan Set Level", "Control method that sets the fan device's speed level (performance state)"),
140 AH_PREDEF ("_FST", "Fan Status", "Returns current status information for a fan device"),
141 AH_PREDEF ("_GAI", "Get Averaging Interval", "Returns the power meter averaging interval"),
142 AH_PREDEF ("_GCP", "Get Capabilities", "Get device time capabilities"),
143 AH_PREDEF ("_GHL", "Get Hardware Limit", "Returns the hardware limit enforced by the power meter"),
144 AH_PREDEF ("_GL_", "Global Lock", "OS-defined Global Lock mutex object"),
145 AH_PREDEF ("_GLK", "Get Global Lock Requirement", "Returns a device's Global Lock requirement for device access"),
146 AH_PREDEF ("_GPD", "Get Post Data", "Returns the value of the VGA device that will be posted at boot"),
147 AH_PREDEF ("_GPE", "General Purpose Events", "Predefined scope (\\_GPE) or SCI number for EC"),
148 AH_PREDEF ("_GRA", "Granularity", "Address space granularity, Resource Descriptor field"),
149 AH_PREDEF ("_GRT", "Get Real Time", "Returns current time-of-day from a time/alarm device"),
150 AH_PREDEF ("_GSB", "Global System Interrupt Base", "Returns the GSB for a I/O APIC device"),
151 AH_PREDEF ("_GTF", "Get Task File", "Returns a list of ATA commands to restore a drive to default state"),
152 AH_PREDEF ("_GTM", "Get Timing Mode", "Returns a list of IDE controller timing information"),
153 AH_PREDEF ("_GTS", "Going To Sleep", "Inform AML of pending sleep"),
154 AH_PREDEF ("_GWS", "Get Wake Status", "Return status of wake alarms"),
155 AH_PREDEF ("_HE_", "High-Edge", "Interrupt triggering, Resource Descriptor field"),
156 AH_PREDEF ("_HID", "Hardware ID", "Returns a device's Plug and Play Hardware ID"),
157 AH_PREDEF ("_HOT", "Hot Temperature", "Returns the critical temperature for sleep (entry to S4)"),
158 AH_PREDEF ("_HPP", "Hot Plug Parameters", "Returns a list of hot-plug information for a PCI device"),
159 AH_PREDEF ("_HPX", "Hot Plug Parameter Extensions", "Returns a list of hot-plug information for a PCI device. Supersedes _HPP"),
160 AH_PREDEF ("_HRV", "Hardware Revision", "Returns a hardware revision value"),
161 AH_PREDEF ("_IFT", "IPMI Interface Type", "See the Intelligent Platform Management Interface Specification"),
162 AH_PREDEF ("_INI", "Initialize", "Performs device specific initialization"),
163 AH_PREDEF ("_INT", "Interrupts", "Interrupt mask bits, Resource Descriptor field"),
164 AH_PREDEF ("_IOR", "I/O Restriction", "Restriction type, Resource Descriptor field"),
165 AH_PREDEF ("_IRC", "Inrush Current", "Presence indicates that a device has a significant inrush current draw"),
166 AH_PREDEF ("_Lxx", "Level-Triggered GPE", "Control method executed as a result of a general-purpose event"),
167 AH_PREDEF ("_LCK", "Lock Device", "Locks or unlocks a device (docking)"),
168 AH_PREDEF ("_LEN", "Length", "Range length, Resource Descriptor field"),
169 AH_PREDEF ("_LID", "Lid Status", "Returns the open/closed status of the lid on a mobile system"),
170 AH_PREDEF ("_LIN", "Lines In Use", "Handshake lines, Resource Descriptor field"),
171 AH_PREDEF ("_LL_", "Low Level", "Interrupt polarity, Resource Descriptor field"),
172 AH_PREDEF ("_MAF", "Maximum Address Fixed", "Resource Descriptor field"),
173 AH_PREDEF ("_MAT", "Multiple APIC Table Entry", "Returns a list of MADT APIC structure entries"),
174 AH_PREDEF ("_MAX", "Maximum Base Address", "Resource Descriptor field"),
175 AH_PREDEF ("_MBM", "Memory Bandwidth Monitoring Data", "Returns bandwidth monitoring data for a memory device"),
176 AH_PREDEF ("_MEM", "Memory Attributes", "Resource Descriptor field"),
177 AH_PREDEF ("_MIF", "Minimum Address Fixed", "Resource Descriptor field"),
178 AH_PREDEF ("_MIN", "Minimum Base Address", "Resource Descriptor field"),
179 AH_PREDEF ("_MLS", "Multiple Language String", "Returns a device description in multiple languages"),
180 AH_PREDEF ("_MOD", "Mode", "Interrupt mode, Resource Descriptor field"),
181 AH_PREDEF ("_MSG", "Message", "Sets the system message waiting status indicator"),
182 AH_PREDEF ("_MSM", "Memory Set Monitoring", "Sets bandwidth monitoring parameters for a memory device"),
183 AH_PREDEF ("_MTP", "Memory Type", "Resource Descriptor field"),
184 AH_PREDEF ("_NTT", "Notification Temperature Threshold", "Returns a threshold for device temperature change that requires platform notification"),
185 AH_PREDEF ("_OFF", "Power Off", "Sets a power resource to the off state"),
186 AH_PREDEF ("_ON_", "Power On", "Sets a power resource to the on state"),
187 AH_PREDEF ("_OS_", "Operating System", "Returns a string that identifies the operating system"),
188 AH_PREDEF ("_OSC", "Operating System Capabilities", "Inform AML of host features and capabilities"),
189 AH_PREDEF ("_OSI", "Operating System Interfaces", "Returns supported interfaces, behaviors, and features"),
190 AH_PREDEF ("_OST", "OSPM Status Indication", "Inform AML of event processing status"),
191 AH_PREDEF ("_PAI", "Power Averaging Interval", "Sets the averaging interval for a power meter"),
192 AH_PREDEF ("_PAR", "Parity", "Parity bits, Resource Descriptor field"),
193 AH_PREDEF ("_PCL", "Power Consumer List", "Returns a list of devices powered by a power source"),
194 AH_PREDEF ("_PCT", "Performance Control", "Returns processor performance control and status registers"),
195 AH_PREDEF ("_PDC", "Processor Driver Capabilities", "Inform AML of processor driver capabilities"),
196 AH_PREDEF ("_PDL", "P-state Depth Limit", "Returns the lowest available performance P-state"),
197 AH_PREDEF ("_PHA", "Clock Phase", "Clock phase, Resource Descriptor field"),
198 AH_PREDEF ("_PIC", "Interrupt Model", "Inform AML of the interrupt model in use"),
199 AH_PREDEF ("_PIF", "Power Source Information", "Returns a Power Source information block"),
200 AH_PREDEF ("_PIN", "Pin List", "Pin list, Resource Descriptor field"),
201 AH_PREDEF ("_PLD", "Physical Location of Device", "Returns a device's physical location information"),
202 AH_PREDEF ("_PMC", "Power Meter Capabilities", "Returns a list of Power Meter capabilities info"),
203 AH_PREDEF ("_PMD", "Power Metered Devices", "Returns a list of devices that are measured by the power meter device"),
204 AH_PREDEF ("_PMM", "Power Meter Measurement", "Returns the current value of the Power Meter"),
205 AH_PREDEF ("_POL", "Polarity", "Interrupt polarity, Resource Descriptor field"),
206 AH_PREDEF ("_PPC", "Performance Present Capabilites", "Returns a list of the performance states currently supported by the platform"),
207 AH_PREDEF ("_PPE", "Polling for Platform Error", "Returns the polling interval to retrieve Corrected Platform Error information"),
208 AH_PREDEF ("_PPI", "Pin Configuration", "Resource Descriptor field"),
209 AH_PREDEF ("_PR", "Processor", "Predefined scope for processor objects"),
210 AH_PREDEF ("_PR0", "Power Resources for D0", "Returns a list of dependent power resources to enter state D0 (fully on)"),
211 AH_PREDEF ("_PR1", "Power Resources for D1", "Returns a list of dependent power resources to enter state D1"),
212 AH_PREDEF ("_PR2", "Power Resources for D2", "Returns a list of dependent power resources to enter state D2"),
213 AH_PREDEF ("_PR3", "Power Resources for D3hot", "Returns a list of dependent power resources to enter state D3hot"),
214 AH_PREDEF ("_PRE", "Power Resources for Enumeration", "Returns a list of dependent power resources to enumerate devices on a bus"),
215 AH_PREDEF ("_PRL", "Power Source Redundancy List", "Returns a list of power source devices in the same redundancy grouping"),
216 AH_PREDEF ("_PRS", "Possible Resource Settings", "Returns a list of a device's possible resource settings"),
217 AH_PREDEF ("_PRT", "PCI Routing Table", "Returns a list of PCI interrupt mappings"),
218 AH_PREDEF ("_PRW", "Power Resources for Wake", "Returns a list of dependent power resources for waking"),
219 AH_PREDEF ("_PS0", "Power State 0", "Sets a device's power state to D0 (device fully on)"),
220 AH_PREDEF ("_PS1", "Power State 1", "Sets a device's power state to D1"),
221 AH_PREDEF ("_PS2", "Power State 2", "Sets a device's power state to D2"),
222 AH_PREDEF ("_PS3", "Power State 3", "Sets a device's power state to D3 (device off)"),
223 AH_PREDEF ("_PSC", "Power State Current", "Returns a device's current power state"),
224 AH_PREDEF ("_PSD", "Power State Dependencies", "Returns processor P-State dependencies"),
225 AH_PREDEF ("_PSE", "Power State for Enumeration", "Put a bus into enumeration power mode"),
226 AH_PREDEF ("_PSL", "Passive List", "Returns a list of passive cooling device objects"),
227 AH_PREDEF ("_PSR", "Power Source", "Returns the power source device currently in use"),
228 AH_PREDEF ("_PSS", "Performance Supported States", "Returns a list of supported processor performance states"),
229 AH_PREDEF ("_PSV", "Passive Temperature", "Returns the passive trip point temperature"),
230 AH_PREDEF ("_PSW", "Power State Wake", "Sets a device's wake function"),
231 AH_PREDEF ("_PTC", "Processor Throttling Control", "Returns throttling control and status registers"),
232 AH_PREDEF ("_PTP", "Power Trip Points", "Sets trip points for the Power Meter device"),
233 AH_PREDEF ("_PTS", "Prepare To Sleep", "Inform the platform of an impending sleep transition"),
234 AH_PREDEF ("_PUR", "Processor Utilization Request", "Returns the number of processors that the platform would like to idle"),
235 AH_PREDEF ("_PXM", "Device Proximity", "Returns a device's proximity domain identifier"),
236 AH_PREDEF ("_Qxx", "EC Query", "Embedded Controller query and SMBus Alarm control method"),
237 AH_PREDEF ("_RBO", "Register Bit Offset", "Resource Descriptor field"),
238 AH_PREDEF ("_RBW", "Register Bit Width", "Resource Descriptor field"),
239 AH_PREDEF ("_REG", "Region Availability", "Inform AML code of an operation region availability change"),
240 AH_PREDEF ("_REV", "Supported ACPI Revision", "Returns the revision of the ACPI specification that is implemented"),
241 AH_PREDEF ("_RMV", "Removal Status", "Returns a device's removal ability status (docking)"),
242 AH_PREDEF ("_RNG", "Range", "Memory range type, Resource Descriptor field"),
243 AH_PREDEF ("_ROM", "Read-Only Memory", "Returns a copy of the ROM data for a display device"),
244 AH_PREDEF ("_RT_", "Resource Type", "Resource Descriptor field"),
245 AH_PREDEF ("_RTV", "Relative Temperature Values", "Returns temperature value information"),
246 AH_PREDEF ("_RW_", "Read-Write Status", "Resource Descriptor field"),
247 AH_PREDEF ("_RXL", "Receive Buffer Size", "Serial channel buffer, Resource Descriptor field"),
248 AH_PREDEF ("_S0_", "S0 System State", "Returns values to enter the system into the S0 state"),
249 AH_PREDEF ("_S1_", "S1 System State", "Returns values to enter the system into the S1 state"),
250 AH_PREDEF ("_S2_", "S2 System State", "Returns values to enter the system into the S2 state"),
251 AH_PREDEF ("_S3_", "S3 System State", "Returns values to enter the system into the S3 state"),
252 AH_PREDEF ("_S4_", "S4 System State", "Returns values to enter the system into the S4 state"),
253 AH_PREDEF ("_S5_", "S5 System State", "Returns values to enter the system into the S5 state"),
254 AH_PREDEF ("_S1D", "S1 Device State", "Returns the highest D-state supported by a device when in the S1 state"),
255 AH_PREDEF ("_S2D", "S2 Device State", "Returns the highest D-state supported by a device when in the S2 state"),
256 AH_PREDEF ("_S3D", "S3 Device State", "Returns the highest D-state supported by a device when in the S3 state"),
257 AH_PREDEF ("_S4D", "S4 Device State", "Returns the highest D-state supported by a device when in the S4 state"),
258 AH_PREDEF ("_S0W", "S0 Device Wake State", "Returns the lowest D-state that the device can wake itself from S0"),
259 AH_PREDEF ("_S1W", "S1 Device Wake State", "Returns the lowest D-state for this device that can wake the system from S1"),
260 AH_PREDEF ("_S2W", "S2 Device Wake State", "Returns the lowest D-state for this device that can wake the system from S2"),
261 AH_PREDEF ("_S3W", "S3 Device Wake State", "Returns the lowest D-state for this device that can wake the system from S3"),
262 AH_PREDEF ("_S4W", "S4 Device Wake State", "Returns the lowest D-state for this device that can wake the system from S4"),
263 AH_PREDEF ("_SB_", "System Bus", "Predefined scope for device and bus objects"),
264 AH_PREDEF ("_SBS", "Smart Battery Subsystem", "Returns the subsystem configuration"),
265 AH_PREDEF ("_SCP", "Set Cooling Policy", "Sets the cooling policy (active or passive)"),
266 AH_PREDEF ("_SDD", "Set Device Data", "Sets data for a SATA device"),
267 AH_PREDEF ("_SEG", "PCI Segment", "Returns a device's PCI Segment Group number"),
268 AH_PREDEF ("_SHL", "Set Hardware Limit", "Sets the hardware limit enforced by the Power Meter"),
269 AH_PREDEF ("_SHR", "Sharable", "Interrupt share status, Resource Descriptor field"),
270 AH_PREDEF ("_SI_", "System Indicators", "Predefined scope"),
271 AH_PREDEF ("_SIZ", "Size", "DMA transfer size, Resource Descriptor field"),
272 AH_PREDEF ("_SLI", "System Locality Information", "Returns a list of NUMA system localities"),
273 AH_PREDEF ("_SLV", "Slave Mode", "Mode setting, Resource Descriptor field"),
274 AH_PREDEF ("_SPD", "Set Post Device", "Sets which video device will be posted at boot"),
275 AH_PREDEF ("_SPE", "Speed", "Connection speed, Resource Descriptor field"),
276 AH_PREDEF ("_SRS", "Set Resource Settings", "Sets a device's resource allocation"),
277 AH_PREDEF ("_SRT", "Set Real Time", "Sets the current time for a time/alarm device"),
278 AH_PREDEF ("_SRV", "IPMI Spec Revision", "See the Intelligent Platform Management Interface Specification"),
279 AH_PREDEF ("_SST", "System Status", "Sets the system status indicator"),
280 AH_PREDEF ("_STA", "Status", "Returns the current status of a Device or Power Resource"),
281 AH_PREDEF ("_STB", "Stop Bits", "Serial channel stop bits, Resource Descriptor field"),
282 AH_PREDEF ("_STM", "Set Timing Mode", "Sets an IDE controller transfer timings"),
283 AH_PREDEF ("_STP", "Set Expired Timer Wake Policy", "Sets expired timer policies of the wake alarm device"),
284 AH_PREDEF ("_STR", "Description String", "Returns a device's description string"),
285 AH_PREDEF ("_STV", "Set Timer Value", "Set timer values of the wake alarm device"),
286 AH_PREDEF ("_SUB", "Subsystem ID", "Returns the subsystem ID for a device"),
287 AH_PREDEF ("_SUN", "Slot User Number", "Returns the slot unique ID number"),
288 AH_PREDEF ("_SWS", "System Wake Source", "Returns the source event that caused the system to wake"),
289 AH_PREDEF ("_T_x", "Emitted by ASL Compiler", "Reserved for use by ASL compilers"),
290 AH_PREDEF ("_TC1", "Thermal Constant 1", "Returns TC1 for the passive cooling formula"),
291 AH_PREDEF ("_TC2", "Thermal Constant 2", "Returns TC2 for the passive cooling formula"),
292 AH_PREDEF ("_TDL", "T-State Depth Limit", "Returns the _TSS entry number of the lowest power throttling state"),
293 AH_PREDEF ("_TIP", "Expired Timer Wake Policy", "Returns timer policies of the wake alarm device"),
294 AH_PREDEF ("_TIV", "Timer Values", "Returns remaining time of the wake alarm device"),
295 AH_PREDEF ("_TMP", "Temperature", "Returns a thermal zone's current temperature"),
296 AH_PREDEF ("_TPC", "Throttling Present Capabilities", "Returns the current number of supported throttling states"),
297 AH_PREDEF ("_TPT", "Trip Point Temperature", "Inform AML that a device's embedded temperature sensor has crossed a temperature trip point"),
298 AH_PREDEF ("_TRA", "Translation", "Address translation offset, Resource Descriptor field"),
299 AH_PREDEF ("_TRS", "Translation Sparse", "Sparse/dense flag, Resource Descriptor field"),
300 AH_PREDEF ("_TRT", "Thermal Relationship Table", "Returns thermal relationships between platform devices"),
301 AH_PREDEF ("_TSD", "Throttling State Dependencies", "Returns a list of T-state dependencies"),
302 AH_PREDEF ("_TSF", "Type-Specific Flags", "Resource Descriptor field"),
303 AH_PREDEF ("_TSP", "Thermal Sampling Period", "Returns the thermal sampling period for passive cooling"),
304 AH_PREDEF ("_TSS", "Throttling Supported States", "Returns supported throttling state information"),
305 AH_PREDEF ("_TST", "Temperature Sensor Threshold", "Returns the minimum separation for a device's temperature trip points"),
306 AH_PREDEF ("_TTP", "Translation Type", "Translation/static flag, Resource Descriptor field"),
307 AH_PREDEF ("_TTS", "Transition To State", "Inform AML of an S-state transition"),
308 AH_PREDEF ("_TXL", "Transmit Buffer Size", "Serial Channel buffer, Resource Descriptor field"),
309 AH_PREDEF ("_TYP", "Type", "DMA channel type (speed), Resource Descriptor field"),
310 AH_PREDEF ("_TZ_", "Thermal Zone", "Predefined scope: ACPI 1.0"),
311 AH_PREDEF ("_TZD", "Thermal Zone Devices", "Returns a list of device names associated with a Thermal Zone"),
312 AH_PREDEF ("_TZM", "Thermal Zone Member", "Returns a reference to the thermal zone of which a device is a member"),
313 AH_PREDEF ("_TZP", "Thermal Zone Polling", "Returns a Thermal zone's polling frequency"),
314 AH_PREDEF ("_UID", "Unique ID", "Return a device's unique persistent ID"),
315 AH_PREDEF ("_UPC", "USB Port Capabilities", "Returns a list of USB port capabilities"),
316 AH_PREDEF ("_UPD", "User Presence Detect", "Returns user detection information"),
317 AH_PREDEF ("_UPP", "User Presence Polling", "Returns the recommended user presence polling interval"),
318 AH_PREDEF ("_VEN", "Vendor Data", "Resource Descriptor field"),
319 AH_PREDEF ("_VPO", "Video Post Options", "Returns the implemented video post options"),
320 AH_PREDEF ("_WAK", "Wake", "Inform AML that the system has just awakened"),
321 AH_PREDEF ("_Wxx", "Wake Event", "Method executed as a result of a wake event"),
322 AH_PREDEF (NULL, NULL, NULL)
323 };