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 AcpiRsSetIrq[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