| 1 | /******************************************************************************* |
| 2 | * |
| 3 | * Module Name: rsirq - IRQ resource descriptors |
| 4 | * |
| 5 | ******************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2016, 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 | #include "acpi.h" |
| 45 | #include "accommon.h" |
| 46 | #include "acresrc.h" |
| 47 | |
| 48 | #define _COMPONENT ACPI_RESOURCES |
| 49 | ACPI_MODULE_NAME ("rsirq" ) |
| 50 | |
| 51 | |
| 52 | /******************************************************************************* |
| 53 | * |
| 54 | * AcpiRsGetIrq |
| 55 | * |
| 56 | ******************************************************************************/ |
| 57 | |
| 58 | ACPI_RSCONVERT_INFO AcpiRsGetIrq[9] = |
| 59 | { |
| 60 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ, |
| 61 | ACPI_RS_SIZE (ACPI_RESOURCE_IRQ), |
| 62 | ACPI_RSC_TABLE_SIZE (AcpiRsGetIrq)}, |
| 63 | |
| 64 | /* Get the IRQ mask (bytes 1:2) */ |
| 65 | |
| 66 | {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]), |
| 67 | AML_OFFSET (Irq.IrqMask), |
| 68 | ACPI_RS_OFFSET (Data.Irq.InterruptCount)}, |
| 69 | |
| 70 | /* Set default flags (others are zero) */ |
| 71 | |
| 72 | {ACPI_RSC_SET8, ACPI_RS_OFFSET (Data.Irq.Triggering), |
| 73 | ACPI_EDGE_SENSITIVE, |
| 74 | 1}, |
| 75 | |
| 76 | /* Get the descriptor length (2 or 3 for IRQ descriptor) */ |
| 77 | |
| 78 | {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Irq.DescriptorLength), |
| 79 | AML_OFFSET (Irq.DescriptorType), |
| 80 | 0}, |
| 81 | |
| 82 | /* All done if no flag byte present in descriptor */ |
| 83 | |
| 84 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3}, |
| 85 | |
| 86 | /* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */ |
| 87 | |
| 88 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering), |
| 89 | AML_OFFSET (Irq.Flags), |
| 90 | 0}, |
| 91 | |
| 92 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity), |
| 93 | AML_OFFSET (Irq.Flags), |
| 94 | 3}, |
| 95 | |
| 96 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable), |
| 97 | AML_OFFSET (Irq.Flags), |
| 98 | 4}, |
| 99 | |
| 100 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.WakeCapable), |
| 101 | AML_OFFSET (Irq.Flags), |
| 102 | 5} |
| 103 | }; |
| 104 | |
| 105 | |
| 106 | /******************************************************************************* |
| 107 | * |
| 108 | * AcpiRsSetIrq |
| 109 | * |
| 110 | ******************************************************************************/ |
| 111 | |
| 112 | ACPI_RSCONVERT_INFO [14] = |
| 113 | { |
| 114 | /* Start with a default descriptor of length 3 */ |
| 115 | |
| 116 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ, |
| 117 | sizeof (AML_RESOURCE_IRQ), |
| 118 | ACPI_RSC_TABLE_SIZE (AcpiRsSetIrq)}, |
| 119 | |
| 120 | /* Convert interrupt list to 16-bit IRQ bitmask */ |
| 121 | |
| 122 | {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]), |
| 123 | AML_OFFSET (Irq.IrqMask), |
| 124 | ACPI_RS_OFFSET (Data.Irq.InterruptCount)}, |
| 125 | |
| 126 | /* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */ |
| 127 | |
| 128 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering), |
| 129 | AML_OFFSET (Irq.Flags), |
| 130 | 0}, |
| 131 | |
| 132 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity), |
| 133 | AML_OFFSET (Irq.Flags), |
| 134 | 3}, |
| 135 | |
| 136 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable), |
| 137 | AML_OFFSET (Irq.Flags), |
| 138 | 4}, |
| 139 | |
| 140 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.WakeCapable), |
| 141 | AML_OFFSET (Irq.Flags), |
| 142 | 5}, |
| 143 | |
| 144 | /* |
| 145 | * All done if the output descriptor length is required to be 3 |
| 146 | * (i.e., optimization to 2 bytes cannot be attempted) |
| 147 | */ |
| 148 | {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, |
| 149 | ACPI_RS_OFFSET(Data.Irq.DescriptorLength), |
| 150 | 3}, |
| 151 | |
| 152 | /* Set length to 2 bytes (no flags byte) */ |
| 153 | |
| 154 | {ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)}, |
| 155 | |
| 156 | /* |
| 157 | * All done if the output descriptor length is required to be 2. |
| 158 | * |
| 159 | * TBD: Perhaps we should check for error if input flags are not |
| 160 | * compatible with a 2-byte descriptor. |
| 161 | */ |
| 162 | {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, |
| 163 | ACPI_RS_OFFSET(Data.Irq.DescriptorLength), |
| 164 | 2}, |
| 165 | |
| 166 | /* Reset length to 3 bytes (descriptor with flags byte) */ |
| 167 | |
| 168 | {ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_IRQ)}, |
| 169 | |
| 170 | /* |
| 171 | * Check if the flags byte is necessary. Not needed if the flags are: |
| 172 | * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE |
| 173 | */ |
| 174 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
| 175 | ACPI_RS_OFFSET (Data.Irq.Triggering), |
| 176 | ACPI_EDGE_SENSITIVE}, |
| 177 | |
| 178 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
| 179 | ACPI_RS_OFFSET (Data.Irq.Polarity), |
| 180 | ACPI_ACTIVE_HIGH}, |
| 181 | |
| 182 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
| 183 | ACPI_RS_OFFSET (Data.Irq.Sharable), |
| 184 | ACPI_EXCLUSIVE}, |
| 185 | |
| 186 | /* We can optimize to a 2-byte IrqNoFlags() descriptor */ |
| 187 | |
| 188 | {ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)} |
| 189 | }; |
| 190 | |
| 191 | |
| 192 | /******************************************************************************* |
| 193 | * |
| 194 | * AcpiRsConvertExtIrq |
| 195 | * |
| 196 | ******************************************************************************/ |
| 197 | |
| 198 | ACPI_RSCONVERT_INFO AcpiRsConvertExtIrq[10] = |
| 199 | { |
| 200 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ, |
| 201 | ACPI_RS_SIZE (ACPI_RESOURCE_EXTENDED_IRQ), |
| 202 | ACPI_RSC_TABLE_SIZE (AcpiRsConvertExtIrq)}, |
| 203 | |
| 204 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ, |
| 205 | sizeof (AML_RESOURCE_EXTENDED_IRQ), |
| 206 | 0}, |
| 207 | |
| 208 | /* |
| 209 | * Flags: Producer/Consumer[0], Triggering[1], Polarity[2], |
| 210 | * Sharing[3], Wake[4] |
| 211 | */ |
| 212 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.ProducerConsumer), |
| 213 | AML_OFFSET (ExtendedIrq.Flags), |
| 214 | 0}, |
| 215 | |
| 216 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Triggering), |
| 217 | AML_OFFSET (ExtendedIrq.Flags), |
| 218 | 1}, |
| 219 | |
| 220 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Polarity), |
| 221 | AML_OFFSET (ExtendedIrq.Flags), |
| 222 | 2}, |
| 223 | |
| 224 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Sharable), |
| 225 | AML_OFFSET (ExtendedIrq.Flags), |
| 226 | 3}, |
| 227 | |
| 228 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.WakeCapable), |
| 229 | AML_OFFSET (ExtendedIrq.Flags), |
| 230 | 4}, |
| 231 | |
| 232 | /* IRQ Table length (Byte4) */ |
| 233 | |
| 234 | {ACPI_RSC_COUNT, ACPI_RS_OFFSET (Data.ExtendedIrq.InterruptCount), |
| 235 | AML_OFFSET (ExtendedIrq.InterruptCount), |
| 236 | sizeof (UINT32)}, |
| 237 | |
| 238 | /* Copy every IRQ in the table, each is 32 bits */ |
| 239 | |
| 240 | {ACPI_RSC_MOVE32, ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]), |
| 241 | AML_OFFSET (ExtendedIrq.Interrupts[0]), |
| 242 | 0}, |
| 243 | |
| 244 | /* Optional ResourceSource (Index and String) */ |
| 245 | |
| 246 | {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET (Data.ExtendedIrq.ResourceSource), |
| 247 | ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]), |
| 248 | sizeof (AML_RESOURCE_EXTENDED_IRQ)} |
| 249 | }; |
| 250 | |
| 251 | |
| 252 | /******************************************************************************* |
| 253 | * |
| 254 | * AcpiRsConvertDma |
| 255 | * |
| 256 | ******************************************************************************/ |
| 257 | |
| 258 | ACPI_RSCONVERT_INFO AcpiRsConvertDma[6] = |
| 259 | { |
| 260 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA, |
| 261 | ACPI_RS_SIZE (ACPI_RESOURCE_DMA), |
| 262 | ACPI_RSC_TABLE_SIZE (AcpiRsConvertDma)}, |
| 263 | |
| 264 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA, |
| 265 | sizeof (AML_RESOURCE_DMA), |
| 266 | 0}, |
| 267 | |
| 268 | /* Flags: transfer preference, bus mastering, channel speed */ |
| 269 | |
| 270 | {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Transfer), |
| 271 | AML_OFFSET (Dma.Flags), |
| 272 | 0}, |
| 273 | |
| 274 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Dma.BusMaster), |
| 275 | AML_OFFSET (Dma.Flags), |
| 276 | 2}, |
| 277 | |
| 278 | {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Type), |
| 279 | AML_OFFSET (Dma.Flags), |
| 280 | 5}, |
| 281 | |
| 282 | /* DMA channel mask bits */ |
| 283 | |
| 284 | {ACPI_RSC_BITMASK, ACPI_RS_OFFSET (Data.Dma.Channels[0]), |
| 285 | AML_OFFSET (Dma.DmaChannelMask), |
| 286 | ACPI_RS_OFFSET (Data.Dma.ChannelCount)} |
| 287 | }; |
| 288 | |
| 289 | |
| 290 | /******************************************************************************* |
| 291 | * |
| 292 | * AcpiRsConvertFixedDma |
| 293 | * |
| 294 | ******************************************************************************/ |
| 295 | |
| 296 | ACPI_RSCONVERT_INFO AcpiRsConvertFixedDma[4] = |
| 297 | { |
| 298 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA, |
| 299 | ACPI_RS_SIZE (ACPI_RESOURCE_FIXED_DMA), |
| 300 | ACPI_RSC_TABLE_SIZE (AcpiRsConvertFixedDma)}, |
| 301 | |
| 302 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA, |
| 303 | sizeof (AML_RESOURCE_FIXED_DMA), |
| 304 | 0}, |
| 305 | |
| 306 | /* |
| 307 | * These fields are contiguous in both the source and destination: |
| 308 | * RequestLines |
| 309 | * Channels |
| 310 | */ |
| 311 | {ACPI_RSC_MOVE16, ACPI_RS_OFFSET (Data.FixedDma.RequestLines), |
| 312 | AML_OFFSET (FixedDma.RequestLines), |
| 313 | 2}, |
| 314 | |
| 315 | {ACPI_RSC_MOVE8, ACPI_RS_OFFSET (Data.FixedDma.Width), |
| 316 | AML_OFFSET (FixedDma.Width), |
| 317 | 1}, |
| 318 | }; |
| 319 | |