sys/contrib/dev/acpica/resources/rsirq.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: rsirq - IRQ resource descriptors
   4  *
   5  ******************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2011, 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
  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 #define __RSIRQ_C__
  45
  46 #include <contrib/dev/acpica/include/acpi.h>
  47 #include <contrib/dev/acpica/include/accommon.h>
  48 #include <contrib/dev/acpica/include/acresrc.h>
  49
  50 #define _COMPONENT          ACPI_RESOURCES
  51         ACPI_MODULE_NAME    ("rsirq")
  52
  53
  54 /*******************************************************************************
  55  *
  56  * AcpiRsGetIrq
  57  *
  58  ******************************************************************************/
  59
  60 ACPI_RSCONVERT_INFO     AcpiRsGetIrq[8] =
  61 {
  62     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_IRQ,
  63                         ACPI_RS_SIZE (ACPI_RESOURCE_IRQ),
  64                         ACPI_RSC_TABLE_SIZE (AcpiRsGetIrq)},
  65
  66     /* Get the IRQ mask (bytes 1:2) */
  67
  68     {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
  69                         AML_OFFSET (Irq.IrqMask),
  70                         ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
  71
  72     /* Set default flags (others are zero) */
  73
  74     {ACPI_RSC_SET8,     ACPI_RS_OFFSET (Data.Irq.Triggering),
  75                         ACPI_EDGE_SENSITIVE,
  76                         1},
  77
  78     /* Get the descriptor length (2 or 3 for IRQ descriptor) */
  79
  80     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Irq.DescriptorLength),
  81                         AML_OFFSET (Irq.DescriptorType),
  82                         0},
  83
  84     /* All done if no flag byte present in descriptor */
  85
  86     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
  87
  88     /* Get flags: Triggering[0], Polarity[3], Sharing[4] */
  89
  90     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
  91                         AML_OFFSET (Irq.Flags),
  92                         0},
  93
  94     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
  95                         AML_OFFSET (Irq.Flags),
  96                         3},
  97
  98     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable),
  99                         AML_OFFSET (Irq.Flags),
 100                         4}
 101 };
 102
 103
 104 /*******************************************************************************
 105  *
 106  * AcpiRsSetIrq
 107  *
 108  ******************************************************************************/
 109
 110 ACPI_RSCONVERT_INFO     AcpiRsSetIrq[13] =
 111 {
 112     /* Start with a default descriptor of length 3 */
 113
 114     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_IRQ,
 115                         sizeof (AML_RESOURCE_IRQ),
 116                         ACPI_RSC_TABLE_SIZE (AcpiRsSetIrq)},
 117
 118     /* Convert interrupt list to 16-bit IRQ bitmask */
 119
 120     {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
 121                         AML_OFFSET (Irq.IrqMask),
 122                         ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
 123
 124     /* Set the flags byte */
 125
 126     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
 127                         AML_OFFSET (Irq.Flags),
 128                         0},
 129
 130     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
 131                         AML_OFFSET (Irq.Flags),
 132                         3},
 133
 134     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable),
 135                         AML_OFFSET (Irq.Flags),
 136                         4},
 137
 138     /*
 139      * All done if the output descriptor length is required to be 3
 140      * (i.e., optimization to 2 bytes cannot be attempted)
 141      */
 142     {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
 143                         ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
 144                         3},
 145
 146     /* Set length to 2 bytes (no flags byte) */
 147
 148     {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)},
 149
 150     /*
 151      * All done if the output descriptor length is required to be 2.
 152      *
 153      * TBD: Perhaps we should check for error if input flags are not
 154      * compatible with a 2-byte descriptor.
 155      */
 156     {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
 157                         ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
 158                         2},
 159
 160     /* Reset length to 3 bytes (descriptor with flags byte) */
 161
 162     {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ)},
 163
 164     /*
 165      * Check if the flags byte is necessary. Not needed if the flags are:
 166      * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
 167      */
 168     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
 169                         ACPI_RS_OFFSET (Data.Irq.Triggering),
 170                         ACPI_EDGE_SENSITIVE},
 171
 172     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
 173                         ACPI_RS_OFFSET (Data.Irq.Polarity),
 174                         ACPI_ACTIVE_HIGH},
 175
 176     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
 177                         ACPI_RS_OFFSET (Data.Irq.Sharable),
 178                         ACPI_EXCLUSIVE},
 179
 180     /* We can optimize to a 2-byte IrqNoFlags() descriptor */
 181
 182     {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)}
 183 };
 184
 185
 186 /*******************************************************************************
 187  *
 188  * AcpiRsConvertExtIrq
 189  *
 190  ******************************************************************************/
 191
 192 ACPI_RSCONVERT_INFO     AcpiRsConvertExtIrq[9] =
 193 {
 194     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
 195                         ACPI_RS_SIZE (ACPI_RESOURCE_EXTENDED_IRQ),
 196                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertExtIrq)},
 197
 198     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_EXTENDED_IRQ,
 199                         sizeof (AML_RESOURCE_EXTENDED_IRQ),
 200                         0},
 201
 202     /* Flag bits */
 203
 204     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.ProducerConsumer),
 205                         AML_OFFSET (ExtendedIrq.Flags),
 206                         0},
 207
 208     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Triggering),
 209                         AML_OFFSET (ExtendedIrq.Flags),
 210                         1},
 211
 212     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Polarity),
 213                         AML_OFFSET (ExtendedIrq.Flags),
 214                         2},
 215
 216     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Sharable),
 217                         AML_OFFSET (ExtendedIrq.Flags),
 218                         3},
 219
 220     /* IRQ Table length (Byte4) */
 221
 222     {ACPI_RSC_COUNT,    ACPI_RS_OFFSET (Data.ExtendedIrq.InterruptCount),
 223                         AML_OFFSET (ExtendedIrq.InterruptCount),
 224                         sizeof (UINT32)},
 225
 226     /* Copy every IRQ in the table, each is 32 bits */
 227
 228     {ACPI_RSC_MOVE32,   ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
 229                         AML_OFFSET (ExtendedIrq.Interrupts[0]),
 230                         0},
 231
 232     /* Optional ResourceSource (Index and String) */
 233
 234     {ACPI_RSC_SOURCEX,  ACPI_RS_OFFSET (Data.ExtendedIrq.ResourceSource),
 235                         ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
 236                         sizeof (AML_RESOURCE_EXTENDED_IRQ)}
 237 };
 238
 239
 240 /*******************************************************************************
 241  *
 242  * AcpiRsConvertDma
 243  *
 244  ******************************************************************************/
 245
 246 ACPI_RSCONVERT_INFO     AcpiRsConvertDma[6] =
 247 {
 248     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_DMA,
 249                         ACPI_RS_SIZE (ACPI_RESOURCE_DMA),
 250                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertDma)},
 251
 252     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_DMA,
 253                         sizeof (AML_RESOURCE_DMA),
 254                         0},
 255
 256     /* Flags: transfer preference, bus mastering, channel speed */
 257
 258     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Transfer),
 259                         AML_OFFSET (Dma.Flags),
 260                         0},
 261
 262     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Dma.BusMaster),
 263                         AML_OFFSET (Dma.Flags),
 264                         2},
 265
 266     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Type),
 267                         AML_OFFSET (Dma.Flags),
 268                         5},
 269
 270     /* DMA channel mask bits */
 271
 272     {ACPI_RSC_BITMASK,  ACPI_RS_OFFSET (Data.Dma.Channels[0]),
 273                         AML_OFFSET (Dma.DmaChannelMask),
 274                         ACPI_RS_OFFSET (Data.Dma.ChannelCount)}
 275 };
 276