err.no Git - linux-2.6/blob - drivers/acpi/resources/rsmemory.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: rsmem24 - Memory resource descriptors
   4  *
   5  ******************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2007, 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("rsmemory")
  49
  50 /*******************************************************************************
  51  *
  52  * acpi_rs_convert_memory24
  53  *
  54  ******************************************************************************/
  55 struct acpi_rsconvert_info acpi_rs_convert_memory24[4] = {
  56         {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY24,
  57          ACPI_RS_SIZE(struct acpi_resource_memory24),
  58          ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory24)},
  59
  60         {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY24,
  61          sizeof(struct aml_resource_memory24),
  62          0},
  63
  64         /* Read/Write bit */
  65
  66         {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory24.write_protect),
  67          AML_OFFSET(memory24.flags),
  68          0},
  69         /*
  70          * These fields are contiguous in both the source and destination:
  71          * Minimum Base Address
  72          * Maximum Base Address
  73          * Address Base Alignment
  74          * Range Length
  75          */
  76         {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.memory24.minimum),
  77          AML_OFFSET(memory24.minimum),
  78          4}
  79 };
  80
  81 /*******************************************************************************
  82  *
  83  * acpi_rs_convert_memory32
  84  *
  85  ******************************************************************************/
  86
  87 struct acpi_rsconvert_info acpi_rs_convert_memory32[4] = {
  88         {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY32,
  89          ACPI_RS_SIZE(struct acpi_resource_memory32),
  90          ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory32)},
  91
  92         {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY32,
  93          sizeof(struct aml_resource_memory32),
  94          0},
  95
  96         /* Read/Write bit */
  97
  98         {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory32.write_protect),
  99          AML_OFFSET(memory32.flags),
 100          0},
 101         /*
 102          * These fields are contiguous in both the source and destination:
 103          * Minimum Base Address
 104          * Maximum Base Address
 105          * Address Base Alignment
 106          * Range Length
 107          */
 108         {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.memory32.minimum),
 109          AML_OFFSET(memory32.minimum),
 110          4}
 111 };
 112
 113 /*******************************************************************************
 114  *
 115  * acpi_rs_convert_fixed_memory32
 116  *
 117  ******************************************************************************/
 118
 119 struct acpi_rsconvert_info acpi_rs_convert_fixed_memory32[4] = {
 120         {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_MEMORY32,
 121          ACPI_RS_SIZE(struct acpi_resource_fixed_memory32),
 122          ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_memory32)},
 123
 124         {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_MEMORY32,
 125          sizeof(struct aml_resource_fixed_memory32),
 126          0},
 127
 128         /* Read/Write bit */
 129
 130         {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.fixed_memory32.write_protect),
 131          AML_OFFSET(fixed_memory32.flags),
 132          0},
 133         /*
 134          * These fields are contiguous in both the source and destination:
 135          * Base Address
 136          * Range Length
 137          */
 138         {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.fixed_memory32.address),
 139          AML_OFFSET(fixed_memory32.address),
 140          2}
 141 };
 142
 143 /*******************************************************************************
 144  *
 145  * acpi_rs_get_vendor_small
 146  *
 147  ******************************************************************************/
 148
 149 struct acpi_rsconvert_info acpi_rs_get_vendor_small[3] = {
 150         {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR,
 151          ACPI_RS_SIZE(struct acpi_resource_vendor),
 152          ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_small)},
 153
 154         /* Length of the vendor data (byte count) */
 155
 156         {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 157          0,
 158          sizeof(u8)}
 159         ,
 160
 161         /* Vendor data */
 162
 163         {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
 164          sizeof(struct aml_resource_small_header),
 165          0}
 166 };
 167
 168 /*******************************************************************************
 169  *
 170  * acpi_rs_get_vendor_large
 171  *
 172  ******************************************************************************/
 173
 174 struct acpi_rsconvert_info acpi_rs_get_vendor_large[3] = {
 175         {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR,
 176          ACPI_RS_SIZE(struct acpi_resource_vendor),
 177          ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_large)},
 178
 179         /* Length of the vendor data (byte count) */
 180
 181         {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 182          0,
 183          sizeof(u8)}
 184         ,
 185
 186         /* Vendor data */
 187
 188         {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
 189          sizeof(struct aml_resource_large_header),
 190          0}
 191 };
 192
 193 /*******************************************************************************
 194  *
 195  * acpi_rs_set_vendor
 196  *
 197  ******************************************************************************/
 198
 199 struct acpi_rsconvert_info acpi_rs_set_vendor[7] = {
 200         /* Default is a small vendor descriptor */
 201
 202         {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_SMALL,
 203          sizeof(struct aml_resource_small_header),
 204          ACPI_RSC_TABLE_SIZE(acpi_rs_set_vendor)},
 205
 206         /* Get the length and copy the data */
 207
 208         {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 209          0,
 210          0},
 211
 212         {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
 213          sizeof(struct aml_resource_small_header),
 214          0},
 215
 216         /*
 217          * All done if the Vendor byte length is 7 or less, meaning that it will
 218          * fit within a small descriptor
 219          */
 220         {ACPI_RSC_EXIT_LE, 0, 0, 7},
 221
 222         /* Must create a large vendor descriptor */
 223
 224         {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_LARGE,
 225          sizeof(struct aml_resource_large_header),
 226          0},
 227
 228         {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 229          0,
 230          0},
 231
 232         {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
 233          sizeof(struct aml_resource_large_header),
 234          0}
 235 };