drivers/acpi/acpica/amlresrc.h

   1
   2 /******************************************************************************
   3  *
   4  * Module Name: amlresrc.h - AML resource descriptors
   5  *
   6  *****************************************************************************/
   7
   8 /*
   9  * Copyright (C) 2000 - 2008, Intel Corp.
  10  * All rights reserved.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions, and the following disclaimer,
  17  *    without modification.
  18  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  19  *    substantially similar to the "NO WARRANTY" disclaimer below
  20  *    ("Disclaimer") and any redistribution must be conditioned upon
  21  *    including a substantially similar Disclaimer requirement for further
  22  *    binary redistribution.
  23  * 3. Neither the names of the above-listed copyright holders nor the names
  24  *    of any contributors may be used to endorse or promote products derived
  25  *    from this software without specific prior written permission.
  26  *
  27  * Alternatively, this software may be distributed under the terms of the
  28  * GNU General Public License ("GPL") version 2 as published by the Free
  29  * Software Foundation.
  30  *
  31  * NO WARRANTY
  32  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  33  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  34  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  35  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  36  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  37  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  38  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  40  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  41  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  42  * POSSIBILITY OF SUCH DAMAGES.
  43  */
  44
  45 /* acpisrc:struct_defs -- for acpisrc conversion */
  46
  47 #ifndef __AMLRESRC_H
  48 #define __AMLRESRC_H
  49
  50 /*
  51  * Resource descriptor tags, as defined in the ACPI specification.
  52  * Used to symbolically reference fields within a descriptor.
  53  */
  54 #define ACPI_RESTAG_ADDRESS                     "_ADR"
  55 #define ACPI_RESTAG_ALIGNMENT                   "_ALN"
  56 #define ACPI_RESTAG_ADDRESSSPACE                "_ASI"
  57 #define ACPI_RESTAG_ACCESSSIZE                  "_ASZ"
  58 #define ACPI_RESTAG_TYPESPECIFICATTRIBUTES      "_ATT"
  59 #define ACPI_RESTAG_BASEADDRESS                 "_BAS"
  60 #define ACPI_RESTAG_BUSMASTER                   "_BM_"  /* Master(1), Slave(0) */
  61 #define ACPI_RESTAG_DECODE                      "_DEC"
  62 #define ACPI_RESTAG_DMA                         "_DMA"
  63 #define ACPI_RESTAG_DMATYPE                     "_TYP"  /* Compatible(0), A(1), B(2), F(3) */
  64 #define ACPI_RESTAG_GRANULARITY                 "_GRA"
  65 #define ACPI_RESTAG_INTERRUPT                   "_INT"
  66 #define ACPI_RESTAG_INTERRUPTLEVEL              "_LL_"  /* active_lo(1), active_hi(0) */
  67 #define ACPI_RESTAG_INTERRUPTSHARE              "_SHR"  /* Shareable(1), no_share(0) */
  68 #define ACPI_RESTAG_INTERRUPTTYPE               "_HE_"  /* Edge(1), Level(0) */
  69 #define ACPI_RESTAG_LENGTH                      "_LEN"
  70 #define ACPI_RESTAG_MEMATTRIBUTES               "_MTP"  /* Memory(0), Reserved(1), ACPI(2), NVS(3) */
  71 #define ACPI_RESTAG_MEMTYPE                     "_MEM"  /* non_cache(0), Cacheable(1) Cache+combine(2), Cache+prefetch(3) */
  72 #define ACPI_RESTAG_MAXADDR                     "_MAX"
  73 #define ACPI_RESTAG_MINADDR                     "_MIN"
  74 #define ACPI_RESTAG_MAXTYPE                     "_MAF"
  75 #define ACPI_RESTAG_MINTYPE                     "_MIF"
  76 #define ACPI_RESTAG_REGISTERBITOFFSET           "_RBO"
  77 #define ACPI_RESTAG_REGISTERBITWIDTH            "_RBW"
  78 #define ACPI_RESTAG_RANGETYPE                   "_RNG"
  79 #define ACPI_RESTAG_READWRITETYPE               "_RW_"  /* read_only(0), Writeable (1) */
  80 #define ACPI_RESTAG_TRANSLATION                 "_TRA"
  81 #define ACPI_RESTAG_TRANSTYPE                   "_TRS"  /* Sparse(1), Dense(0) */
  82 #define ACPI_RESTAG_TYPE                        "_TTP"  /* Translation(1), Static (0) */
  83 #define ACPI_RESTAG_XFERTYPE                    "_SIZ"  /* 8(0), 8_and16(1), 16(2) */
  84
  85 /* Default sizes for "small" resource descriptors */
  86
  87 #define ASL_RDESC_IRQ_SIZE                      0x02
  88 #define ASL_RDESC_DMA_SIZE                      0x02
  89 #define ASL_RDESC_ST_DEPEND_SIZE                0x00
  90 #define ASL_RDESC_END_DEPEND_SIZE               0x00
  91 #define ASL_RDESC_IO_SIZE                       0x07
  92 #define ASL_RDESC_FIXED_IO_SIZE                 0x03
  93 #define ASL_RDESC_END_TAG_SIZE                  0x01
  94
  95 struct asl_resource_node {
  96         u32 buffer_length;
  97         void *buffer;
  98         struct asl_resource_node *next;
  99 };
 100
 101 /* Macros used to generate AML resource length fields */
 102
 103 #define ACPI_AML_SIZE_LARGE(r)      (sizeof (r) - sizeof (struct aml_resource_large_header))
 104 #define ACPI_AML_SIZE_SMALL(r)      (sizeof (r) - sizeof (struct aml_resource_small_header))
 105
 106 /*
 107  * Resource descriptors defined in the ACPI specification.
 108  *
 109  * Packing/alignment must be BYTE because these descriptors
 110  * are used to overlay the raw AML byte stream.
 111  */
 112 #pragma pack(1)
 113
 114 /*
 115  * SMALL descriptors
 116  */
 117 #define AML_RESOURCE_SMALL_HEADER_COMMON \
 118         u8                              descriptor_type;
 119
 120 struct aml_resource_small_header {
 121 AML_RESOURCE_SMALL_HEADER_COMMON};
 122
 123 struct aml_resource_irq {
 124         AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask;
 125         u8 flags;
 126 };
 127
 128 struct aml_resource_irq_noflags {
 129         AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask;
 130 };
 131
 132 struct aml_resource_dma {
 133         AML_RESOURCE_SMALL_HEADER_COMMON u8 dma_channel_mask;
 134         u8 flags;
 135 };
 136
 137 struct aml_resource_start_dependent {
 138         AML_RESOURCE_SMALL_HEADER_COMMON u8 flags;
 139 };
 140
 141 struct aml_resource_start_dependent_noprio {
 142 AML_RESOURCE_SMALL_HEADER_COMMON};
 143
 144 struct aml_resource_end_dependent {
 145 AML_RESOURCE_SMALL_HEADER_COMMON};
 146
 147 struct aml_resource_io {
 148         AML_RESOURCE_SMALL_HEADER_COMMON u8 flags;
 149         u16 minimum;
 150         u16 maximum;
 151         u8 alignment;
 152         u8 address_length;
 153 };
 154
 155 struct aml_resource_fixed_io {
 156         AML_RESOURCE_SMALL_HEADER_COMMON u16 address;
 157         u8 address_length;
 158 };
 159
 160 struct aml_resource_vendor_small {
 161 AML_RESOURCE_SMALL_HEADER_COMMON};
 162
 163 struct aml_resource_end_tag {
 164         AML_RESOURCE_SMALL_HEADER_COMMON u8 checksum;
 165 };
 166
 167 /*
 168  * LARGE descriptors
 169  */
 170 #define AML_RESOURCE_LARGE_HEADER_COMMON \
 171         u8                              descriptor_type;\
 172         u16                             resource_length;
 173
 174 struct aml_resource_large_header {
 175 AML_RESOURCE_LARGE_HEADER_COMMON};
 176
 177 struct aml_resource_memory24 {
 178         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 179         u16 minimum;
 180         u16 maximum;
 181         u16 alignment;
 182         u16 address_length;
 183 };
 184
 185 struct aml_resource_vendor_large {
 186 AML_RESOURCE_LARGE_HEADER_COMMON};
 187
 188 struct aml_resource_memory32 {
 189         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 190         u32 minimum;
 191         u32 maximum;
 192         u32 alignment;
 193         u32 address_length;
 194 };
 195
 196 struct aml_resource_fixed_memory32 {
 197         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 198         u32 address;
 199         u32 address_length;
 200 };
 201
 202 #define AML_RESOURCE_ADDRESS_COMMON \
 203         u8                              resource_type; \
 204         u8                              flags; \
 205         u8                              specific_flags;
 206
 207 struct aml_resource_address {
 208 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_ADDRESS_COMMON};
 209
 210 struct aml_resource_extended_address64 {
 211         AML_RESOURCE_LARGE_HEADER_COMMON
 212             AML_RESOURCE_ADDRESS_COMMON u8 revision_iD;
 213         u8 reserved;
 214         u64 granularity;
 215         u64 minimum;
 216         u64 maximum;
 217         u64 translation_offset;
 218         u64 address_length;
 219         u64 type_specific;
 220 };
 221
 222 #define AML_RESOURCE_EXTENDED_ADDRESS_REVISION          1       /* ACPI 3.0 */
 223
 224 struct aml_resource_address64 {
 225         AML_RESOURCE_LARGE_HEADER_COMMON
 226             AML_RESOURCE_ADDRESS_COMMON u64 granularity;
 227         u64 minimum;
 228         u64 maximum;
 229         u64 translation_offset;
 230         u64 address_length;
 231 };
 232
 233 struct aml_resource_address32 {
 234         AML_RESOURCE_LARGE_HEADER_COMMON
 235             AML_RESOURCE_ADDRESS_COMMON u32 granularity;
 236         u32 minimum;
 237         u32 maximum;
 238         u32 translation_offset;
 239         u32 address_length;
 240 };
 241
 242 struct aml_resource_address16 {
 243         AML_RESOURCE_LARGE_HEADER_COMMON
 244             AML_RESOURCE_ADDRESS_COMMON u16 granularity;
 245         u16 minimum;
 246         u16 maximum;
 247         u16 translation_offset;
 248         u16 address_length;
 249 };
 250
 251 struct aml_resource_extended_irq {
 252         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 253         u8 interrupt_count;
 254         u32 interrupts[1];
 255         /* res_source_index, res_source optional fields follow */
 256 };
 257
 258 struct aml_resource_generic_register {
 259         AML_RESOURCE_LARGE_HEADER_COMMON u8 address_space_id;
 260         u8 bit_width;
 261         u8 bit_offset;
 262         u8 access_size;         /* ACPI 3.0, was previously Reserved */
 263         u64 address;
 264 };
 265
 266 /* restore default alignment */
 267
 268 #pragma pack()
 269
 270 /* Union of all resource descriptors, so we can allocate the worst case */
 271
 272 union aml_resource {
 273         /* Descriptor headers */
 274
 275         u8 descriptor_type;
 276         struct aml_resource_small_header small_header;
 277         struct aml_resource_large_header large_header;
 278
 279         /* Small resource descriptors */
 280
 281         struct aml_resource_irq irq;
 282         struct aml_resource_dma dma;
 283         struct aml_resource_start_dependent start_dpf;
 284         struct aml_resource_end_dependent end_dpf;
 285         struct aml_resource_io io;
 286         struct aml_resource_fixed_io fixed_io;
 287         struct aml_resource_vendor_small vendor_small;
 288         struct aml_resource_end_tag end_tag;
 289
 290         /* Large resource descriptors */
 291
 292         struct aml_resource_memory24 memory24;
 293         struct aml_resource_generic_register generic_reg;
 294         struct aml_resource_vendor_large vendor_large;
 295         struct aml_resource_memory32 memory32;
 296         struct aml_resource_fixed_memory32 fixed_memory32;
 297         struct aml_resource_address16 address16;
 298         struct aml_resource_address32 address32;
 299         struct aml_resource_address64 address64;
 300         struct aml_resource_extended_address64 ext_address64;
 301         struct aml_resource_extended_irq extended_irq;
 302
 303         /* Utility overlays */
 304
 305         struct aml_resource_address address;
 306         u32 dword_item;
 307         u16 word_item;
 308         u8 byte_item;
 309 };
 310
 311 #endif