1/** @file
2  ACPI 1.0b definitions from the ACPI Specification, revision 1.0b
3
4Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
5This program and the accompanying materials are licensed and made available under
6the terms and conditions of the BSD License that accompanies this distribution.
7The full text of the license may be found at
8http://opensource.org/licenses/bsd-license.php.
9
10THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12**/
13
14#ifndef _ACPI_1_0_H_
15#define _ACPI_1_0_H_
16
17#include <IndustryStandard/AcpiAml.h>
18
19///
20/// Common table header, this prefaces all ACPI tables, including FACS, but
21/// excluding the RSD PTR structure.
22///
23typedef struct {
24  UINT32  Signature;
25  UINT32  Length;
26} EFI_ACPI_COMMON_HEADER;
27
28#pragma pack(1)
29///
30/// The common ACPI description table header.  This structure prefaces most ACPI tables.
31///
32typedef struct {
33  UINT32  Signature;
34  UINT32  Length;
35  UINT8   Revision;
36  UINT8   Checksum;
37  UINT8   OemId[6];
38  UINT64  OemTableId;
39  UINT32  OemRevision;
40  UINT32  CreatorId;
41  UINT32  CreatorRevision;
42} EFI_ACPI_DESCRIPTION_HEADER;
43#pragma pack()
44
45//
46// Define for Desriptor
47//
48#define ACPI_SMALL_ITEM_FLAG                   0x00
49#define ACPI_LARGE_ITEM_FLAG                   0x01
50
51//
52// Small Item Descriptor Name
53//
54#define ACPI_SMALL_IRQ_DESCRIPTOR_NAME                       0x04
55#define ACPI_SMALL_DMA_DESCRIPTOR_NAME                       0x05
56#define ACPI_SMALL_START_DEPENDENT_DESCRIPTOR_NAME           0x06
57#define ACPI_SMALL_END_DEPENDENT_DESCRIPTOR_NAME             0x07
58#define ACPI_SMALL_IO_PORT_DESCRIPTOR_NAME                   0x08
59#define ACPI_SMALL_FIXED_IO_PORT_DESCRIPTOR_NAME             0x09
60#define ACPI_SMALL_VENDOR_DEFINED_DESCRIPTOR_NAME            0x0E
61#define ACPI_SMALL_END_TAG_DESCRIPTOR_NAME                   0x0F
62
63//
64// Large Item Descriptor Name
65//
66#define ACPI_LARGE_24_BIT_MEMORY_RANGE_DESCRIPTOR_NAME       0x01
67#define ACPI_LARGE_VENDOR_DEFINED_DESCRIPTOR_NAME            0x04
68#define ACPI_LARGE_32_BIT_MEMORY_RANGE_DESCRIPTOR_NAME       0x05
69#define ACPI_LARGE_32_BIT_FIXED_MEMORY_RANGE_DESCRIPTOR_NAME 0x06
70#define ACPI_LARGE_DWORD_ADDRESS_SPACE_DESCRIPTOR_NAME       0x07
71#define ACPI_LARGE_WORD_ADDRESS_SPACE_DESCRIPTOR_NAME        0x08
72#define ACPI_LARGE_EXTENDED_IRQ_DESCRIPTOR_NAME              0x09
73#define ACPI_LARGE_QWORD_ADDRESS_SPACE_DESCRIPTOR_NAME       0x0A
74
75//
76// Small Item Descriptor Value
77//
78#define ACPI_IRQ_NOFLAG_DESCRIPTOR                0x22
79#define ACPI_IRQ_DESCRIPTOR                       0x23
80#define ACPI_DMA_DESCRIPTOR                       0x2A
81#define ACPI_START_DEPENDENT_DESCRIPTOR           0x30
82#define ACPI_START_DEPENDENT_EX_DESCRIPTOR        0x31
83#define ACPI_END_DEPENDENT_DESCRIPTOR             0x38
84#define ACPI_IO_PORT_DESCRIPTOR                   0x47
85#define ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR    0x4B
86#define ACPI_END_TAG_DESCRIPTOR                   0x79
87
88//
89// Large Item Descriptor Value
90//
91#define ACPI_24_BIT_MEMORY_RANGE_DESCRIPTOR       0x81
92#define ACPI_32_BIT_MEMORY_RANGE_DESCRIPTOR       0x85
93#define ACPI_32_BIT_FIXED_MEMORY_RANGE_DESCRIPTOR 0x86
94#define ACPI_DWORD_ADDRESS_SPACE_DESCRIPTOR       0x87
95#define ACPI_WORD_ADDRESS_SPACE_DESCRIPTOR        0x88
96#define ACPI_EXTENDED_INTERRUPT_DESCRIPTOR        0x89
97#define ACPI_QWORD_ADDRESS_SPACE_DESCRIPTOR       0x8A
98#define ACPI_ADDRESS_SPACE_DESCRIPTOR             0x8A
99
100//
101// Resource Type
102//
103#define ACPI_ADDRESS_SPACE_TYPE_MEM   0x00
104#define ACPI_ADDRESS_SPACE_TYPE_IO    0x01
105#define ACPI_ADDRESS_SPACE_TYPE_BUS   0x02
106
107///
108/// Power Management Timer frequency is fixed at 3.579545MHz.
109///
110#define ACPI_TIMER_FREQUENCY       3579545
111
112//
113// Ensure proper structure formats
114//
115#pragma pack(1)
116
117///
118/// The commond definition of QWORD, DWORD, and WORD
119/// Address Space Descriptors.
120///
121typedef PACKED struct {
122  UINT8   Desc;
123  UINT16  Len;
124  UINT8   ResType;
125  UINT8   GenFlag;
126  UINT8   SpecificFlag;
127  UINT64  AddrSpaceGranularity;
128  UINT64  AddrRangeMin;
129  UINT64  AddrRangeMax;
130  UINT64  AddrTranslationOffset;
131  UINT64  AddrLen;
132} EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR;
133
134typedef PACKED union {
135  UINT8     Byte;
136  PACKED struct {
137    UINT8 Length : 3;
138    UINT8 Name : 4;
139    UINT8 Type : 1;
140  } Bits;
141} ACPI_SMALL_RESOURCE_HEADER;
142
143typedef PACKED struct {
144  PACKED union {
145    UINT8 Byte;
146    PACKED struct {
147      UINT8 Name : 7;
148      UINT8 Type : 1;
149    }Bits;
150  } Header;
151  UINT16 Length;
152} ACPI_LARGE_RESOURCE_HEADER;
153
154///
155/// IRQ Descriptor.
156///
157typedef PACKED struct {
158  ACPI_SMALL_RESOURCE_HEADER   Header;
159  UINT16                       Mask;
160} EFI_ACPI_IRQ_NOFLAG_DESCRIPTOR;
161
162///
163/// IRQ Descriptor.
164///
165typedef PACKED struct {
166  ACPI_SMALL_RESOURCE_HEADER   Header;
167  UINT16                       Mask;
168  UINT8                        Information;
169} EFI_ACPI_IRQ_DESCRIPTOR;
170
171///
172/// DMA Descriptor.
173///
174typedef PACKED struct {
175  ACPI_SMALL_RESOURCE_HEADER   Header;
176  UINT8                        ChannelMask;
177  UINT8                        Information;
178} EFI_ACPI_DMA_DESCRIPTOR;
179
180///
181/// I/O Port Descriptor
182///
183typedef PACKED struct {
184  ACPI_SMALL_RESOURCE_HEADER   Header;
185  UINT8                        Information;
186  UINT16                       BaseAddressMin;
187  UINT16                       BaseAddressMax;
188  UINT8                        Alignment;
189  UINT8                        Length;
190} EFI_ACPI_IO_PORT_DESCRIPTOR;
191
192///
193/// Fixed Location I/O Port Descriptor.
194///
195typedef PACKED struct {
196  ACPI_SMALL_RESOURCE_HEADER   Header;
197  UINT16                       BaseAddress;
198  UINT8                        Length;
199} EFI_ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR;
200
201///
202/// 24-Bit Memory Range Descriptor
203///
204typedef PACKED struct {
205  ACPI_LARGE_RESOURCE_HEADER    Header;
206  UINT8                         Information;
207  UINT16                        BaseAddressMin;
208  UINT16                        BaseAddressMax;
209  UINT16                        Alignment;
210  UINT16                        Length;
211} EFI_ACPI_24_BIT_MEMORY_RANGE_DESCRIPTOR;
212
213///
214/// 32-Bit Memory Range Descriptor
215///
216typedef PACKED struct {
217  ACPI_LARGE_RESOURCE_HEADER    Header;
218  UINT8                         Information;
219  UINT32                        BaseAddressMin;
220  UINT32                        BaseAddressMax;
221  UINT32                        Alignment;
222  UINT32                        Length;
223} EFI_ACPI_32_BIT_MEMORY_RANGE_DESCRIPTOR;
224
225///
226/// Fixed 32-Bit Fixed Memory Range Descriptor
227///
228typedef PACKED struct {
229  ACPI_LARGE_RESOURCE_HEADER    Header;
230  UINT8                         Information;
231  UINT32                        BaseAddress;
232  UINT32                        Length;
233} EFI_ACPI_32_BIT_FIXED_MEMORY_RANGE_DESCRIPTOR;
234
235///
236/// QWORD Address Space Descriptor
237///
238typedef PACKED struct {
239  ACPI_LARGE_RESOURCE_HEADER    Header;
240  UINT8                         ResType;
241  UINT8                         GenFlag;
242  UINT8                         SpecificFlag;
243  UINT64                        AddrSpaceGranularity;
244  UINT64                        AddrRangeMin;
245  UINT64                        AddrRangeMax;
246  UINT64                        AddrTranslationOffset;
247  UINT64                        AddrLen;
248} EFI_ACPI_QWORD_ADDRESS_SPACE_DESCRIPTOR;
249
250///
251/// DWORD Address Space Descriptor
252///
253typedef PACKED struct {
254  ACPI_LARGE_RESOURCE_HEADER    Header;
255  UINT8                         ResType;
256  UINT8                         GenFlag;
257  UINT8                         SpecificFlag;
258  UINT32                        AddrSpaceGranularity;
259  UINT32                        AddrRangeMin;
260  UINT32                        AddrRangeMax;
261  UINT32                        AddrTranslationOffset;
262  UINT32                        AddrLen;
263} EFI_ACPI_DWORD_ADDRESS_SPACE_DESCRIPTOR;
264
265///
266/// WORD Address Space Descriptor
267///
268typedef PACKED struct {
269  ACPI_LARGE_RESOURCE_HEADER    Header;
270  UINT8                         ResType;
271  UINT8                         GenFlag;
272  UINT8                         SpecificFlag;
273  UINT16                        AddrSpaceGranularity;
274  UINT16                        AddrRangeMin;
275  UINT16                        AddrRangeMax;
276  UINT16                        AddrTranslationOffset;
277  UINT16                        AddrLen;
278} EFI_ACPI_WORD_ADDRESS_SPACE_DESCRIPTOR;
279
280///
281/// Extended Interrupt Descriptor
282///
283typedef PACKED struct {
284  ACPI_LARGE_RESOURCE_HEADER    Header;
285  UINT8                         InterruptVectorFlags;
286  UINT8                         InterruptTableLength;
287  UINT32                        InterruptNumber[1];
288} EFI_ACPI_EXTENDED_INTERRUPT_DESCRIPTOR;
289
290#pragma pack()
291
292///
293/// The End tag identifies an end of resource data.
294///
295typedef struct {
296  UINT8 Desc;
297  UINT8 Checksum;
298} EFI_ACPI_END_TAG_DESCRIPTOR;
299
300//
301// General use definitions
302//
303#define EFI_ACPI_RESERVED_BYTE  0x00
304#define EFI_ACPI_RESERVED_WORD  0x0000
305#define EFI_ACPI_RESERVED_DWORD 0x00000000
306#define EFI_ACPI_RESERVED_QWORD 0x0000000000000000
307
308//
309// Resource Type Specific Flags
310// Ref ACPI specification 6.4.3.5.5
311//
312// Bit [0]    : Write Status, _RW
313//
314#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_READ_WRITE                (1 << 0)
315#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_READ_ONLY                 (0 << 0)
316//
317// Bit [2:1]  : Memory Attributes, _MEM
318//
319#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_NON_CACHEABLE             (0 << 1)
320#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE                 (1 << 1)
321#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_WRITE_COMBINING (2 << 1)
322#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE    (3 << 1)
323//
324// Bit [4:3]  : Memory Attributes, _MTP
325//
326#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_ADDRESS_RANGE_MEMORY      (0 << 3)
327#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_ADDRESS_RANGE_RESERVED    (1 << 3)
328#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_ADDRESS_RANGE_ACPI        (2 << 3)
329#define EFI_APCI_MEMORY_RESOURCE_SPECIFIC_FLAG_ADDRESS_RANGE_NVS         (3 << 3)
330//
331// Bit [5]    : Memory to I/O Translation, _TTP
332//
333#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_TYPE_TRANSLATION          (1 << 5)
334#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_TYPE_STATIC               (0 << 5)
335
336//
337// IRQ Information
338// Ref ACPI specification 6.4.2.1
339//
340#define EFI_ACPI_IRQ_SHARABLE_MASK                      0x10
341#define   EFI_ACPI_IRQ_SHARABLE                         0x10
342
343#define EFI_ACPI_IRQ_POLARITY_MASK                      0x08
344#define   EFI_ACPI_IRQ_HIGH_TRUE                        0x00
345#define   EFI_ACPI_IRQ_LOW_FALSE                        0x08
346
347#define EFI_ACPI_IRQ_MODE                               0x01
348#define   EFI_ACPI_IRQ_LEVEL_TRIGGERED                  0x00
349#define   EFI_ACPI_IRQ_EDGE_TRIGGERED                   0x01
350
351//
352// DMA Information
353// Ref ACPI specification 6.4.2.2
354//
355#define EFI_ACPI_DMA_SPEED_TYPE_MASK                    0x60
356#define   EFI_ACPI_DMA_SPEED_TYPE_COMPATIBILITY         0x00
357#define   EFI_ACPI_DMA_SPEED_TYPE_A                     0x20
358#define   EFI_ACPI_DMA_SPEED_TYPE_B                     0x40
359#define   EFI_ACPI_DMA_SPEED_TYPE_F                     0x60
360
361#define EFI_ACPI_DMA_BUS_MASTER_MASK                    0x04
362#define   EFI_ACPI_DMA_BUS_MASTER                       0x04
363
364#define EFI_ACPI_DMA_TRANSFER_TYPE_MASK                 0x03
365#define   EFI_ACPI_DMA_TRANSFER_TYPE_8_BIT              0x00
366#define   EFI_ACPI_DMA_TRANSFER_TYPE_8_BIT_AND_16_BIT   0x01
367#define   EFI_ACPI_DMA_TRANSFER_TYPE_16_BIT             0x10
368
369//
370// IO Information
371// Ref ACPI specification 6.4.2.5
372//
373#define EFI_ACPI_IO_DECODE_MASK                         0x01
374#define   EFI_ACPI_IO_DECODE_16_BIT                     0x01
375#define   EFI_ACPI_IO_DECODE_10_BIT                     0x00
376
377//
378// Memory Information
379// Ref ACPI specification 6.4.3.4
380//
381#define EFI_ACPI_MEMORY_WRITE_STATUS_MASK               0x01
382#define   EFI_ACPI_MEMORY_WRITABLE                      0x01
383#define   EFI_ACPI_MEMORY_NON_WRITABLE                  0x00
384
385//
386// Ensure proper structure formats
387//
388#pragma pack(1)
389//
390// ACPI 1.0b table structures
391//
392
393///
394/// Root System Description Pointer Structure.
395///
396typedef struct {
397  UINT64  Signature;
398  UINT8   Checksum;
399  UINT8   OemId[6];
400  UINT8   Reserved;
401  UINT32  RsdtAddress;
402} EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER;
403
404//
405// Root System Description Table
406// No definition needed as it is a common description table header, the same with
407// EFI_ACPI_DESCRIPTION_HEADER, followed by a variable number of UINT32 table pointers.
408//
409
410///
411/// RSDT Revision (as defined in ACPI 1.0b specification).
412///
413#define EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION 0x01
414
415///
416/// Fixed ACPI Description Table Structure (FADT).
417///
418typedef struct {
419  EFI_ACPI_DESCRIPTION_HEADER Header;
420  UINT32                      FirmwareCtrl;
421  UINT32                      Dsdt;
422  UINT8                       IntModel;
423  UINT8                       Reserved1;
424  UINT16                      SciInt;
425  UINT32                      SmiCmd;
426  UINT8                       AcpiEnable;
427  UINT8                       AcpiDisable;
428  UINT8                       S4BiosReq;
429  UINT8                       Reserved2;
430  UINT32                      Pm1aEvtBlk;
431  UINT32                      Pm1bEvtBlk;
432  UINT32                      Pm1aCntBlk;
433  UINT32                      Pm1bCntBlk;
434  UINT32                      Pm2CntBlk;
435  UINT32                      PmTmrBlk;
436  UINT32                      Gpe0Blk;
437  UINT32                      Gpe1Blk;
438  UINT8                       Pm1EvtLen;
439  UINT8                       Pm1CntLen;
440  UINT8                       Pm2CntLen;
441  UINT8                       PmTmLen;
442  UINT8                       Gpe0BlkLen;
443  UINT8                       Gpe1BlkLen;
444  UINT8                       Gpe1Base;
445  UINT8                       Reserved3;
446  UINT16                      PLvl2Lat;
447  UINT16                      PLvl3Lat;
448  UINT16                      FlushSize;
449  UINT16                      FlushStride;
450  UINT8                       DutyOffset;
451  UINT8                       DutyWidth;
452  UINT8                       DayAlrm;
453  UINT8                       MonAlrm;
454  UINT8                       Century;
455  UINT8                       Reserved4;
456  UINT8                       Reserved5;
457  UINT8                       Reserved6;
458  UINT32                      Flags;
459} EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE;
460
461///
462/// FADT Version (as defined in ACPI 1.0b specification).
463///
464#define EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_REVISION  0x01
465
466#define EFI_ACPI_1_0_INT_MODE_DUAL_PIC         0
467#define EFI_ACPI_1_0_INT_MODE_MULTIPLE_APIC    1
468
469//
470// Fixed ACPI Description Table Fixed Feature Flags
471// All other bits are reserved and must be set to 0.
472//
473#define EFI_ACPI_1_0_WBINVD               BIT0
474#define EFI_ACPI_1_0_WBINVD_FLUSH         BIT1
475#define EFI_ACPI_1_0_PROC_C1              BIT2
476#define EFI_ACPI_1_0_P_LVL2_UP            BIT3
477#define EFI_ACPI_1_0_PWR_BUTTON           BIT4
478#define EFI_ACPI_1_0_SLP_BUTTON           BIT5
479#define EFI_ACPI_1_0_FIX_RTC              BIT6
480#define EFI_ACPI_1_0_RTC_S4               BIT7
481#define EFI_ACPI_1_0_TMR_VAL_EXT          BIT8
482#define EFI_ACPI_1_0_DCK_CAP              BIT9
483
484///
485/// Firmware ACPI Control Structure.
486///
487typedef struct {
488  UINT32  Signature;
489  UINT32  Length;
490  UINT32  HardwareSignature;
491  UINT32  FirmwareWakingVector;
492  UINT32  GlobalLock;
493  UINT32  Flags;
494  UINT8   Reserved[40];
495} EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE;
496
497///
498/// Firmware Control Structure Feature Flags.
499/// All other bits are reserved and must be set to 0.
500///
501#define EFI_ACPI_1_0_S4BIOS_F             BIT0
502
503///
504/// Multiple APIC Description Table header definition.  The rest of the table
505/// must be defined in a platform-specific manner.
506///
507typedef struct {
508  EFI_ACPI_DESCRIPTION_HEADER Header;
509  UINT32                      LocalApicAddress;
510  UINT32                      Flags;
511} EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER;
512
513///
514/// MADT Revision (as defined in ACPI 1.0b specification).
515///
516#define EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION 0x01
517
518///
519/// Multiple APIC Flags
520/// All other bits are reserved and must be set to 0.
521///
522#define EFI_ACPI_1_0_PCAT_COMPAT           BIT0
523
524//
525// Multiple APIC Description Table APIC structure types
526// All other values between 0x05 an 0xFF are reserved and
527// will be ignored by OSPM.
528//
529#define EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC           0x00
530#define EFI_ACPI_1_0_IO_APIC                        0x01
531#define EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE      0x02
532#define EFI_ACPI_1_0_NON_MASKABLE_INTERRUPT_SOURCE  0x03
533#define EFI_ACPI_1_0_LOCAL_APIC_NMI                 0x04
534
535//
536// APIC Structure Definitions
537//
538
539///
540/// Processor Local APIC Structure Definition.
541///
542typedef struct {
543  UINT8   Type;
544  UINT8   Length;
545  UINT8   AcpiProcessorId;
546  UINT8   ApicId;
547  UINT32  Flags;
548} EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE;
549
550///
551/// Local APIC Flags.  All other bits are reserved and must be 0.
552///
553#define EFI_ACPI_1_0_LOCAL_APIC_ENABLED      BIT0
554
555///
556/// IO APIC Structure.
557///
558typedef struct {
559  UINT8   Type;
560  UINT8   Length;
561  UINT8   IoApicId;
562  UINT8   Reserved;
563  UINT32  IoApicAddress;
564  UINT32  SystemVectorBase;
565} EFI_ACPI_1_0_IO_APIC_STRUCTURE;
566
567///
568/// Interrupt Source Override Structure.
569///
570typedef struct {
571  UINT8   Type;
572  UINT8   Length;
573  UINT8   Bus;
574  UINT8   Source;
575  UINT32  GlobalSystemInterruptVector;
576  UINT16  Flags;
577} EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE;
578
579///
580/// Non-Maskable Interrupt Source Structure.
581///
582typedef struct {
583  UINT8   Type;
584  UINT8   Length;
585  UINT16  Flags;
586  UINT32  GlobalSystemInterruptVector;
587} EFI_ACPI_1_0_NON_MASKABLE_INTERRUPT_SOURCE_STRUCTURE;
588
589///
590/// Local APIC NMI Structure.
591///
592typedef struct {
593  UINT8   Type;
594  UINT8   Length;
595  UINT8   AcpiProcessorId;
596  UINT16  Flags;
597  UINT8   LocalApicInti;
598} EFI_ACPI_1_0_LOCAL_APIC_NMI_STRUCTURE;
599
600///
601/// Smart Battery Description Table (SBST)
602///
603typedef struct {
604  EFI_ACPI_DESCRIPTION_HEADER Header;
605  UINT32                      WarningEnergyLevel;
606  UINT32                      LowEnergyLevel;
607  UINT32                      CriticalEnergyLevel;
608} EFI_ACPI_1_0_SMART_BATTERY_DESCRIPTION_TABLE;
609
610//
611// Known table signatures
612//
613
614///
615/// "RSD PTR " Root System Description Pointer.
616///
617#define EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE  SIGNATURE_64('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')
618
619///
620/// "APIC" Multiple APIC Description Table.
621///
622#define EFI_ACPI_1_0_APIC_SIGNATURE  SIGNATURE_32('A', 'P', 'I', 'C')
623
624///
625/// "DSDT" Differentiated System Description Table.
626///
627#define EFI_ACPI_1_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('D', 'S', 'D', 'T')
628
629///
630/// "FACS" Firmware ACPI Control Structure.
631///
632#define EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'S')
633
634///
635/// "FACP" Fixed ACPI Description Table.
636///
637#define EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'P')
638
639///
640/// "PSDT" Persistent System Description Table.
641///
642#define EFI_ACPI_1_0_PERSISTENT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('P', 'S', 'D', 'T')
643
644///
645/// "RSDT" Root System Description Table.
646///
647#define EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('R', 'S', 'D', 'T')
648
649///
650/// "SBST" Smart Battery Specification Table.
651///
652#define EFI_ACPI_1_0_SMART_BATTERY_SPECIFICATION_TABLE_SIGNATURE  SIGNATURE_32('S', 'B', 'S', 'T')
653
654///
655/// "SSDT" Secondary System Description Table.
656///
657#define EFI_ACPI_1_0_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('S', 'S', 'D', 'T')
658
659#pragma pack()
660
661#endif
662