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1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.02/*******************************************************************************3 *4 * Module Name: rsirq - IRQ resource descriptors5 *6 ******************************************************************************/7 8#include <acpi/acpi.h>9#include "accommon.h"10#include "acresrc.h"11 12#define _COMPONENT ACPI_RESOURCES13ACPI_MODULE_NAME("rsirq")14 15/*******************************************************************************16 *17 * acpi_rs_get_irq18 *19 ******************************************************************************/20struct acpi_rsconvert_info acpi_rs_get_irq[9] = {21 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,22 ACPI_RS_SIZE(struct acpi_resource_irq),23 ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},24 25 /* Get the IRQ mask (bytes 1:2) */26 27 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),28 AML_OFFSET(irq.irq_mask),29 ACPI_RS_OFFSET(data.irq.interrupt_count)},30 31 /* Set default flags (others are zero) */32 33 {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),34 ACPI_EDGE_SENSITIVE,35 1},36 37 /* Get the descriptor length (2 or 3 for IRQ descriptor) */38 39 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length),40 AML_OFFSET(irq.descriptor_type),41 0},42 43 /* All done if no flag byte present in descriptor */44 45 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},46 47 /* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */48 49 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),50 AML_OFFSET(irq.flags),51 0},52 53 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),54 AML_OFFSET(irq.flags),55 3},56 57 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.shareable),58 AML_OFFSET(irq.flags),59 4},60 61 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),62 AML_OFFSET(irq.flags),63 5}64};65 66/*******************************************************************************67 *68 * acpi_rs_set_irq69 *70 ******************************************************************************/71 72struct acpi_rsconvert_info acpi_rs_set_irq[14] = {73 /* Start with a default descriptor of length 3 */74 75 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,76 sizeof(struct aml_resource_irq),77 ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},78 79 /* Convert interrupt list to 16-bit IRQ bitmask */80 81 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),82 AML_OFFSET(irq.irq_mask),83 ACPI_RS_OFFSET(data.irq.interrupt_count)},84 85 /* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */86 87 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),88 AML_OFFSET(irq.flags),89 0},90 91 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),92 AML_OFFSET(irq.flags),93 3},94 95 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.shareable),96 AML_OFFSET(irq.flags),97 4},98 99 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),100 AML_OFFSET(irq.flags),101 5},102 103 /*104 * All done if the output descriptor length is required to be 3105 * (i.e., optimization to 2 bytes cannot be attempted)106 */107 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,108 ACPI_RS_OFFSET(data.irq.descriptor_length),109 3},110 111 /* Set length to 2 bytes (no flags byte) */112 113 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)},114 115 /*116 * All done if the output descriptor length is required to be 2.117 *118 * TBD: Perhaps we should check for error if input flags are not119 * compatible with a 2-byte descriptor.120 */121 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,122 ACPI_RS_OFFSET(data.irq.descriptor_length),123 2},124 125 /* Reset length to 3 bytes (descriptor with flags byte) */126 127 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)},128 129 /*130 * Check if the flags byte is necessary. Not needed if the flags are:131 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE132 */133 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,134 ACPI_RS_OFFSET(data.irq.triggering),135 ACPI_EDGE_SENSITIVE},136 137 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,138 ACPI_RS_OFFSET(data.irq.polarity),139 ACPI_ACTIVE_HIGH},140 141 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,142 ACPI_RS_OFFSET(data.irq.shareable),143 ACPI_EXCLUSIVE},144 145 /* We can optimize to a 2-byte irq_no_flags() descriptor */146 147 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}148};149 150/*******************************************************************************151 *152 * acpi_rs_convert_ext_irq153 *154 ******************************************************************************/155 156struct acpi_rsconvert_info acpi_rs_convert_ext_irq[10] = {157 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,158 ACPI_RS_SIZE(struct acpi_resource_extended_irq),159 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},160 161 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,162 sizeof(struct aml_resource_extended_irq),163 0},164 165 /*166 * Flags: Producer/Consumer[0], Triggering[1], Polarity[2],167 * Sharing[3], Wake[4]168 */169 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),170 AML_OFFSET(extended_irq.flags),171 0},172 173 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),174 AML_OFFSET(extended_irq.flags),175 1},176 177 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),178 AML_OFFSET(extended_irq.flags),179 2},180 181 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.shareable),182 AML_OFFSET(extended_irq.flags),183 3},184 185 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.wake_capable),186 AML_OFFSET(extended_irq.flags),187 4},188 189 /* IRQ Table length (Byte4) */190 191 {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),192 AML_OFFSET(extended_irq.interrupt_count),193 sizeof(u32)},194 195 /* Copy every IRQ in the table, each is 32 bits */196 197 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),198 AML_OFFSET(extended_irq.interrupts[0]),199 0},200 201 /* Optional resource_source (Index and String) */202 203 {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),204 ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),205 sizeof(struct aml_resource_extended_irq)}206};207 208/*******************************************************************************209 *210 * acpi_rs_convert_dma211 *212 ******************************************************************************/213 214struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {215 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,216 ACPI_RS_SIZE(struct acpi_resource_dma),217 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},218 219 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,220 sizeof(struct aml_resource_dma),221 0},222 223 /* Flags: transfer preference, bus mastering, channel speed */224 225 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),226 AML_OFFSET(dma.flags),227 0},228 229 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),230 AML_OFFSET(dma.flags),231 2},232 233 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),234 AML_OFFSET(dma.flags),235 5},236 237 /* DMA channel mask bits */238 239 {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),240 AML_OFFSET(dma.dma_channel_mask),241 ACPI_RS_OFFSET(data.dma.channel_count)}242};243 244/*******************************************************************************245 *246 * acpi_rs_convert_fixed_dma247 *248 ******************************************************************************/249 250struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[4] = {251 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA,252 ACPI_RS_SIZE(struct acpi_resource_fixed_dma),253 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_dma)},254 255 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA,256 sizeof(struct aml_resource_fixed_dma),257 0},258 259 /*260 * These fields are contiguous in both the source and destination:261 * request_lines262 * Channels263 */264 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_dma.request_lines),265 AML_OFFSET(fixed_dma.request_lines),266 2},267 268 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_dma.width),269 AML_OFFSET(fixed_dma.width),270 1},271};272