drivers/acpi/acpica/rsinfo.c

Source file repositories/reference/linux-study-clean/drivers/acpi/acpica/rsinfo.c

File Facts

System
Linux kernel
Corpus path
drivers/acpi/acpica/rsinfo.c
Extension
.c
Size
11785 bytes
Lines
246
Domain
Driver Families
Bucket
drivers/acpi
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/*******************************************************************************
 *
 * Module Name: rsinfo - Dispatch and Info tables
 *
 ******************************************************************************/

#include <acpi/acpi.h>
#include "accommon.h"
#include "acresrc.h"

#define _COMPONENT          ACPI_RESOURCES
ACPI_MODULE_NAME("rsinfo")

/*
 * Resource dispatch and information tables. Any new resource types (either
 * Large or Small) must be reflected in each of these tables, so they are here
 * in one place.
 *
 * The tables for Large descriptors are indexed by bits 6:0 of the AML
 * descriptor type byte. The tables for Small descriptors are indexed by
 * bits 6:3 of the descriptor byte. The tables for internal resource
 * descriptors are indexed by the acpi_resource_type field.
 */
/* Dispatch table for resource-to-AML (Set Resource) conversion functions */
struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = {
	acpi_rs_set_irq,	/* 0x00, ACPI_RESOURCE_TYPE_IRQ */
	acpi_rs_convert_dma,	/* 0x01, ACPI_RESOURCE_TYPE_DMA */
	acpi_rs_set_start_dpf,	/* 0x02, ACPI_RESOURCE_TYPE_START_DEPENDENT */
	acpi_rs_convert_end_dpf,	/* 0x03, ACPI_RESOURCE_TYPE_END_DEPENDENT */
	acpi_rs_convert_io,	/* 0x04, ACPI_RESOURCE_TYPE_IO */
	acpi_rs_convert_fixed_io,	/* 0x05, ACPI_RESOURCE_TYPE_FIXED_IO */
	acpi_rs_set_vendor,	/* 0x06, ACPI_RESOURCE_TYPE_VENDOR */
	acpi_rs_convert_end_tag,	/* 0x07, ACPI_RESOURCE_TYPE_END_TAG */
	acpi_rs_convert_memory24,	/* 0x08, ACPI_RESOURCE_TYPE_MEMORY24 */
	acpi_rs_convert_memory32,	/* 0x09, ACPI_RESOURCE_TYPE_MEMORY32 */
	acpi_rs_convert_fixed_memory32,	/* 0x0A, ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
	acpi_rs_convert_address16,	/* 0x0B, ACPI_RESOURCE_TYPE_ADDRESS16 */
	acpi_rs_convert_address32,	/* 0x0C, ACPI_RESOURCE_TYPE_ADDRESS32 */
	acpi_rs_convert_address64,	/* 0x0D, ACPI_RESOURCE_TYPE_ADDRESS64 */
	acpi_rs_convert_ext_address64,	/* 0x0E, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
	acpi_rs_convert_ext_irq,	/* 0x0F, ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
	acpi_rs_convert_generic_reg,	/* 0x10, ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
	acpi_rs_convert_gpio,	/* 0x11, ACPI_RESOURCE_TYPE_GPIO */
	acpi_rs_convert_fixed_dma,	/* 0x12, ACPI_RESOURCE_TYPE_FIXED_DMA */
	NULL,			/* 0x13, ACPI_RESOURCE_TYPE_SERIAL_BUS - Use subtype table below */
	acpi_rs_convert_pin_function,	/* 0x14, ACPI_RESOURCE_TYPE_PIN_FUNCTION */
	acpi_rs_convert_pin_config,	/* 0x15, ACPI_RESOURCE_TYPE_PIN_CONFIG */
	acpi_rs_convert_pin_group,	/* 0x16, ACPI_RESOURCE_TYPE_PIN_GROUP */
	acpi_rs_convert_pin_group_function,	/* 0x17, ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
	acpi_rs_convert_pin_group_config,	/* 0x18, ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG */
	acpi_rs_convert_clock_input,	/* 0x19, ACPI_RESOURCE_TYPE_CLOCK_INPUT */
};

/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */

struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = {
	/* Small descriptors */

	NULL,			/* 0x00, Reserved */
	NULL,			/* 0x01, Reserved */
	NULL,			/* 0x02, Reserved */
	NULL,			/* 0x03, Reserved */
	acpi_rs_get_irq,	/* 0x04, ACPI_RESOURCE_NAME_IRQ */
	acpi_rs_convert_dma,	/* 0x05, ACPI_RESOURCE_NAME_DMA */
	acpi_rs_get_start_dpf,	/* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */
	acpi_rs_convert_end_dpf,	/* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */
	acpi_rs_convert_io,	/* 0x08, ACPI_RESOURCE_NAME_IO */
	acpi_rs_convert_fixed_io,	/* 0x09, ACPI_RESOURCE_NAME_FIXED_IO */
	acpi_rs_convert_fixed_dma,	/* 0x0A, ACPI_RESOURCE_NAME_FIXED_DMA */
	NULL,			/* 0x0B, Reserved */
	NULL,			/* 0x0C, Reserved */
	NULL,			/* 0x0D, Reserved */
	acpi_rs_get_vendor_small,	/* 0x0E, ACPI_RESOURCE_NAME_VENDOR_SMALL */
	acpi_rs_convert_end_tag,	/* 0x0F, ACPI_RESOURCE_NAME_END_TAG */

	/* Large descriptors */

	NULL,			/* 0x00, Reserved */
	acpi_rs_convert_memory24,	/* 0x01, ACPI_RESOURCE_NAME_MEMORY24 */
	acpi_rs_convert_generic_reg,	/* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */
	NULL,			/* 0x03, Reserved */
	acpi_rs_get_vendor_large,	/* 0x04, ACPI_RESOURCE_NAME_VENDOR_LARGE */
	acpi_rs_convert_memory32,	/* 0x05, ACPI_RESOURCE_NAME_MEMORY32 */
	acpi_rs_convert_fixed_memory32,	/* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY32 */
	acpi_rs_convert_address32,	/* 0x07, ACPI_RESOURCE_NAME_ADDRESS32 */
	acpi_rs_convert_address16,	/* 0x08, ACPI_RESOURCE_NAME_ADDRESS16 */
	acpi_rs_convert_ext_irq,	/* 0x09, ACPI_RESOURCE_NAME_EXTENDED_IRQ */
	acpi_rs_convert_address64,	/* 0x0A, ACPI_RESOURCE_NAME_ADDRESS64 */
	acpi_rs_convert_ext_address64,	/* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 */

Annotation

Implementation Notes