1/******************************************************************************* 2 * 3 * Module Name: rsirq - IRQ 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 48ACPI_MODULE_NAME("rsirq") 49 50/******************************************************************************* 51 * 52 * acpi_rs_get_irq 53 * 54 ******************************************************************************/ 55struct acpi_rsconvert_info acpi_rs_get_irq[7] = { 56 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ, 57 ACPI_RS_SIZE(struct acpi_resource_irq), 58 ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)}, 59 60 /* Get the IRQ mask (bytes 1:2) */ 61 62 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]), 63 AML_OFFSET(irq.irq_mask), 64 ACPI_RS_OFFSET(data.irq.interrupt_count)}, 65 66 /* Set default flags (others are zero) */ 67 68 {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering), 69 ACPI_EDGE_SENSITIVE, 70 1}, 71 72 /* All done if no flag byte present in descriptor */ 73 74 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3}, 75 76 /* Get flags: Triggering[0], Polarity[3], Sharing[4] */ 77 78 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering), 79 AML_OFFSET(irq.flags), 80 0}, 81 82 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity), 83 AML_OFFSET(irq.flags), 84 3}, 85 86 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable), 87 AML_OFFSET(irq.flags), 88 4} 89}; 90 91/******************************************************************************* 92 * 93 * acpi_rs_set_irq 94 * 95 ******************************************************************************/ 96 97struct acpi_rsconvert_info acpi_rs_set_irq[9] = { 98 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ, 99 sizeof(struct aml_resource_irq), 100 ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)}, 101 102 /* Convert interrupt list to 16-bit IRQ bitmask */ 103 104 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]), 105 AML_OFFSET(irq.irq_mask), 106 ACPI_RS_OFFSET(data.irq.interrupt_count)}, 107 108 /* Set the flags byte by default */ 109 110 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering), 111 AML_OFFSET(irq.flags), 112 0}, 113 114 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity), 115 AML_OFFSET(irq.flags), 116 3}, 117 118 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable), 119 AML_OFFSET(irq.flags), 120 4}, 121 /* 122 * Check if the flags byte is necessary. Not needed if the flags are: 123 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE 124 */ 125 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, 126 ACPI_RS_OFFSET(data.irq.triggering), 127 ACPI_EDGE_SENSITIVE}, 128 129 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, 130 ACPI_RS_OFFSET(data.irq.polarity), 131 ACPI_ACTIVE_HIGH}, 132 133 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, 134 ACPI_RS_OFFSET(data.irq.sharable), 135 ACPI_EXCLUSIVE}, 136 137 /* irq_no_flags() descriptor can be used */ 138 139 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)} 140}; 141 142/******************************************************************************* 143 * 144 * acpi_rs_convert_ext_irq 145 * 146 ******************************************************************************/ 147 148struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = { 149 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ, 150 ACPI_RS_SIZE(struct acpi_resource_extended_irq), 151 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)}, 152 153 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ, 154 sizeof(struct aml_resource_extended_irq), 155 0}, 156 157 /* Flag bits */ 158 159 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer), 160 AML_OFFSET(extended_irq.flags), 161 0}, 162 163 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering), 164 AML_OFFSET(extended_irq.flags), 165 1}, 166 167 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity), 168 AML_OFFSET(extended_irq.flags), 169 2}, 170 171 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable), 172 AML_OFFSET(extended_irq.flags), 173 3}, 174 175 /* IRQ Table length (Byte4) */ 176 177 {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count), 178 AML_OFFSET(extended_irq.interrupt_count), 179 sizeof(u32)} 180 , 181 182 /* Copy every IRQ in the table, each is 32 bits */ 183 184 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), 185 AML_OFFSET(extended_irq.interrupts[0]), 186 0} 187 , 188 189 /* Optional resource_source (Index and String) */ 190 191 {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source), 192 ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), 193 sizeof(struct aml_resource_extended_irq)} 194}; 195 196/******************************************************************************* 197 * 198 * acpi_rs_convert_dma 199 * 200 ******************************************************************************/ 201 202struct acpi_rsconvert_info acpi_rs_convert_dma[6] = { 203 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA, 204 ACPI_RS_SIZE(struct acpi_resource_dma), 205 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)}, 206 207 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA, 208 sizeof(struct aml_resource_dma), 209 0}, 210 211 /* Flags: transfer preference, bus mastering, channel speed */ 212 213 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer), 214 AML_OFFSET(dma.flags), 215 0}, 216 217 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master), 218 AML_OFFSET(dma.flags), 219 2}, 220 221 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type), 222 AML_OFFSET(dma.flags), 223 5}, 224 225 /* DMA channel mask bits */ 226 227 {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]), 228 AML_OFFSET(dma.dma_channel_mask), 229 ACPI_RS_OFFSET(data.dma.channel_count)} 230}; 231