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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
acpi/acpi.haccommon.hacresrc.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
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
- Immediate include surface: `acpi/acpi.h`, `accommon.h`, `acresrc.h`.
- Atlas domain: Driver Families / drivers/acpi.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.