drivers/acpi/resources/rsinfo.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: rsinfo - Dispatch and Info tables
   4  *
   5  ******************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2005, R. Byron Moore
   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 #include <acpi/acpi.h>
  45 #include <acpi/acresrc.h>
  46
  47 #define _COMPONENT          ACPI_RESOURCES
  48 ACPI_MODULE_NAME("rsinfo")
  49
  50 /*
  51  * Resource dispatch and information tables. Any new resource types (either
  52  * Large or Small) must be reflected in each of these tables, so they are here
  53  * in one place.
  54  *
  55  * The tables for Large descriptors are indexed by bits 6:0 of the AML
  56  * descriptor type byte. The tables for Small descriptors are indexed by
  57  * bits 6:3 of the descriptor byte. The tables for internal resource
  58  * descriptors are indexed by the acpi_resource_type field.
  59  */
  60 /* Dispatch table for resource-to-AML (Set Resource) conversion functions */
  61 ACPI_SET_RESOURCE_HANDLER acpi_gbl_set_resource_dispatch[] = {
  62         acpi_rs_set_irq,        /* 0x00, ACPI_RESOURCE_TYPE_IRQ */
  63         acpi_rs_set_dma,        /* 0x01, ACPI_RESOURCE_TYPE_DMA */
  64         acpi_rs_set_start_dpf,  /* 0x02, ACPI_RESOURCE_TYPE_START_DEPENDENT */
  65         acpi_rs_set_end_dpf,    /* 0x03, ACPI_RESOURCE_TYPE_END_DEPENDENT */
  66         acpi_rs_set_io,         /* 0x04, ACPI_RESOURCE_TYPE_IO */
  67         acpi_rs_set_fixed_io,   /* 0x05, ACPI_RESOURCE_TYPE_FIXED_IO */
  68         acpi_rs_set_vendor,     /* 0x06, ACPI_RESOURCE_TYPE_VENDOR */
  69         acpi_rs_set_end_tag,    /* 0x07, ACPI_RESOURCE_TYPE_END_TAG */
  70         acpi_rs_set_memory24,   /* 0x08, ACPI_RESOURCE_TYPE_MEMORY24 */
  71         acpi_rs_set_memory32,   /* 0x09, ACPI_RESOURCE_TYPE_MEMORY32 */
  72         acpi_rs_set_fixed_memory32,     /* 0x0A, ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
  73         acpi_rs_set_address16,  /* 0x0B, ACPI_RESOURCE_TYPE_ADDRESS16 */
  74         acpi_rs_set_address32,  /* 0x0C, ACPI_RESOURCE_TYPE_ADDRESS32 */
  75         acpi_rs_set_address64,  /* 0x0D, ACPI_RESOURCE_TYPE_ADDRESS64 */
  76         acpi_rs_set_ext_address64,      /* 0x0E, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
  77         acpi_rs_set_ext_irq,    /* 0x0F, ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
  78         acpi_rs_set_generic_reg /* 0x10, ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
  79 };
  80
  81 /* Dispatch tables for AML-to-resource (Get Resource) conversion functions */
  82
  83 ACPI_GET_RESOURCE_HANDLER acpi_gbl_sm_get_resource_dispatch[] = {
  84         NULL,                   /* 0x00, Reserved */
  85         NULL,                   /* 0x01, Reserved */
  86         NULL,                   /* 0x02, Reserved */
  87         NULL,                   /* 0x03, Reserved */
  88         acpi_rs_get_irq,        /* 0x04, ACPI_RESOURCE_NAME_IRQ */
  89         acpi_rs_get_dma,        /* 0x05, ACPI_RESOURCE_NAME_DMA */
  90         acpi_rs_get_start_dpf,  /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */
  91         acpi_rs_get_end_dpf,    /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */
  92         acpi_rs_get_io,         /* 0x08, ACPI_RESOURCE_NAME_IO */
  93         acpi_rs_get_fixed_io,   /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO */
  94         NULL,                   /* 0x0A, Reserved */
  95         NULL,                   /* 0x0B, Reserved */
  96         NULL,                   /* 0x0C, Reserved */
  97         NULL,                   /* 0x0D, Reserved */
  98         acpi_rs_get_vendor,     /* 0x0E, ACPI_RESOURCE_NAME_VENDOR_SMALL */
  99         acpi_rs_get_end_tag     /* 0x0F, ACPI_RESOURCE_NAME_END_TAG */
 100 };
 101
 102 ACPI_GET_RESOURCE_HANDLER acpi_gbl_lg_get_resource_dispatch[] = {
 103         NULL,                   /* 0x00, Reserved */
 104         acpi_rs_get_memory24,   /* 0x01, ACPI_RESOURCE_NAME_MEMORY24 */
 105         acpi_rs_get_generic_reg,        /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */
 106         NULL,                   /* 0x03, Reserved */
 107         acpi_rs_get_vendor,     /* 0x04, ACPI_RESOURCE_NAME_VENDOR_LARGE */
 108         acpi_rs_get_memory32,   /* 0x05, ACPI_RESOURCE_NAME_MEMORY32 */
 109         acpi_rs_get_fixed_memory32,     /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY32 */
 110         acpi_rs_get_address32,  /* 0x07, ACPI_RESOURCE_NAME_ADDRESS32 */
 111         acpi_rs_get_address16,  /* 0x08, ACPI_RESOURCE_NAME_ADDRESS16 */
 112         acpi_rs_get_ext_irq,    /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_IRQ */
 113         acpi_rs_get_address64,  /* 0x0A, ACPI_RESOURCE_NAME_ADDRESS64 */
 114         acpi_rs_get_ext_address64       /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 */
 115 };
 116
 117 #ifdef ACPI_FUTURE_USAGE
 118 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
 119
 120 /* Dispatch table for resource dump functions */
 121
 122 ACPI_DUMP_RESOURCE_HANDLER acpi_gbl_dump_resource_dispatch[] = {
 123         acpi_rs_dump_irq,       /* ACPI_RESOURCE_TYPE_IRQ */
 124         acpi_rs_dump_dma,       /* ACPI_RESOURCE_TYPE_DMA */
 125         acpi_rs_dump_start_dpf, /* ACPI_RESOURCE_TYPE_START_DEPENDENT */
 126         acpi_rs_dump_end_dpf,   /* ACPI_RESOURCE_TYPE_END_DEPENDENT */
 127         acpi_rs_dump_io,        /* ACPI_RESOURCE_TYPE_IO */
 128         acpi_rs_dump_fixed_io,  /* ACPI_RESOURCE_TYPE_FIXED_IO */
 129         acpi_rs_dump_vendor,    /* ACPI_RESOURCE_TYPE_VENDOR */
 130         acpi_rs_dump_end_tag,   /* ACPI_RESOURCE_TYPE_END_TAG */
 131         acpi_rs_dump_memory24,  /* ACPI_RESOURCE_TYPE_MEMORY24 */
 132         acpi_rs_dump_memory32,  /* ACPI_RESOURCE_TYPE_MEMORY32 */
 133         acpi_rs_dump_fixed_memory32,    /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
 134         acpi_rs_dump_address16, /* ACPI_RESOURCE_TYPE_ADDRESS16 */
 135         acpi_rs_dump_address32, /* ACPI_RESOURCE_TYPE_ADDRESS32 */
 136         acpi_rs_dump_address64, /* ACPI_RESOURCE_TYPE_ADDRESS64 */
 137         acpi_rs_dump_ext_address64,     /* ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
 138         acpi_rs_dump_ext_irq,   /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
 139         acpi_rs_dump_generic_reg        /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
 140 };
 141 #endif
 142 #endif  /* ACPI_FUTURE_USAGE */
 143
 144 /*
 145  * Base sizes for external AML resource descriptors, indexed by internal type.
 146  * Includes size of the descriptor header (1 byte for small descriptors,
 147  * 3 bytes for large descriptors)
 148  */
 149 u8 acpi_gbl_aml_resource_sizes[] = {
 150         sizeof(struct aml_resource_irq),        /* ACPI_RESOURCE_TYPE_IRQ (optional Byte 3 always created) */
 151         sizeof(struct aml_resource_dma),        /* ACPI_RESOURCE_TYPE_DMA */
 152         sizeof(struct aml_resource_start_dependent),    /* ACPI_RESOURCE_TYPE_START_DEPENDENT (optional Byte 1 always created) */
 153         sizeof(struct aml_resource_end_dependent),      /* ACPI_RESOURCE_TYPE_END_DEPENDENT */
 154         sizeof(struct aml_resource_io), /* ACPI_RESOURCE_TYPE_IO */
 155         sizeof(struct aml_resource_fixed_io),   /* ACPI_RESOURCE_TYPE_FIXED_IO */
 156         sizeof(struct aml_resource_vendor_small),       /* ACPI_RESOURCE_TYPE_VENDOR */
 157         sizeof(struct aml_resource_end_tag),    /* ACPI_RESOURCE_TYPE_END_TAG */
 158         sizeof(struct aml_resource_memory24),   /* ACPI_RESOURCE_TYPE_MEMORY24 */
 159         sizeof(struct aml_resource_memory32),   /* ACPI_RESOURCE_TYPE_MEMORY32 */
 160         sizeof(struct aml_resource_fixed_memory32),     /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
 161         sizeof(struct aml_resource_address16),  /* ACPI_RESOURCE_TYPE_ADDRESS16 */
 162         sizeof(struct aml_resource_address32),  /* ACPI_RESOURCE_TYPE_ADDRESS32 */
 163         sizeof(struct aml_resource_address64),  /* ACPI_RESOURCE_TYPE_ADDRESS64 */
 164         sizeof(struct aml_resource_extended_address64), /*ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
 165         sizeof(struct aml_resource_extended_irq),       /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
 166         sizeof(struct aml_resource_generic_register)    /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
 167 };
 168
 169 /* Macros used in the tables below */
 170
 171 #define ACPI_RLARGE(r)          sizeof (r) - sizeof (struct aml_resource_large_header)
 172 #define ACPI_RSMALL(r)          sizeof (r) - sizeof (struct aml_resource_small_header)
 173
 174 /*
 175  * Base sizes of resource descriptors, both the AML stream resource length
 176  * (minus size of header and length fields),and the size of the internal
 177  * struct representation.
 178  */
 179 struct acpi_resource_info acpi_gbl_sm_resource_info[] = {
 180         {0, 0, 0},
 181         {0, 0, 0},
 182         {0, 0, 0},
 183         {0, 0, 0},
 184         {2, ACPI_RSMALL(struct aml_resource_irq),
 185          ACPI_SIZEOF_RESOURCE(struct acpi_resource_irq)},
 186         {0, ACPI_RSMALL(struct aml_resource_dma),
 187          ACPI_SIZEOF_RESOURCE(struct acpi_resource_dma)},
 188         {2, ACPI_RSMALL(struct aml_resource_start_dependent),
 189          ACPI_SIZEOF_RESOURCE(struct acpi_resource_start_dependent)},
 190         {0, ACPI_RSMALL(struct aml_resource_end_dependent),
 191          ACPI_RESOURCE_LENGTH},
 192         {0, ACPI_RSMALL(struct aml_resource_io),
 193          ACPI_SIZEOF_RESOURCE(struct acpi_resource_io)},
 194         {0, ACPI_RSMALL(struct aml_resource_fixed_io),
 195          ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_io)},
 196         {0, 0, 0},
 197         {0, 0, 0},
 198         {0, 0, 0},
 199         {0, 0, 0},
 200         {1, ACPI_RSMALL(struct aml_resource_vendor_small),
 201          ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor)},
 202         {0, ACPI_RSMALL(struct aml_resource_end_tag), ACPI_RESOURCE_LENGTH}
 203 };
 204
 205 struct acpi_resource_info acpi_gbl_lg_resource_info[] = {
 206         {0, 0, 0},
 207         {0, ACPI_RLARGE(struct aml_resource_memory24),
 208          ACPI_SIZEOF_RESOURCE(struct acpi_resource_memory24)},
 209         {0, ACPI_RLARGE(struct aml_resource_generic_register),
 210          ACPI_SIZEOF_RESOURCE(struct acpi_resource_generic_register)},
 211         {0, 0, 0},
 212         {1, ACPI_RLARGE(struct aml_resource_vendor_large),
 213          ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor)},
 214         {0, ACPI_RLARGE(struct aml_resource_memory32),
 215          ACPI_SIZEOF_RESOURCE(struct acpi_resource_memory32)},
 216         {0, ACPI_RLARGE(struct aml_resource_fixed_memory32),
 217          ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_memory32)},
 218         {1, ACPI_RLARGE(struct aml_resource_address32),
 219          ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32)},
 220         {1, ACPI_RLARGE(struct aml_resource_address16),
 221          ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16)},
 222         {1, ACPI_RLARGE(struct aml_resource_extended_irq),
 223          ACPI_SIZEOF_RESOURCE(struct acpi_resource_extended_irq)},
 224         {1, ACPI_RLARGE(struct aml_resource_address64),
 225          ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64)},
 226         {0, ACPI_RLARGE(struct aml_resource_extended_address64),
 227          ACPI_SIZEOF_RESOURCE(struct acpi_resource_extended_address64)}
 228 };