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OpenCloudOS-Kernel/drivers/acpi/acpica/rsirq.c

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// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/*******************************************************************************
*
* Module Name: rsirq - IRQ resource descriptors
*
******************************************************************************/
#include <acpi/acpi.h>
#include "accommon.h"
#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsirq")
/*******************************************************************************
*
* acpi_rs_get_irq
*
******************************************************************************/
struct acpi_rsconvert_info acpi_rs_get_irq[9] = {
{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
ACPI_RS_SIZE(struct acpi_resource_irq),
ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
/* Get the IRQ mask (bytes 1:2) */
{ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
AML_OFFSET(irq.irq_mask),
ACPI_RS_OFFSET(data.irq.interrupt_count)},
/* Set default flags (others are zero) */
{ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
ACPI_EDGE_SENSITIVE,
1},
/* Get the descriptor length (2 or 3 for IRQ descriptor) */
{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length),
AML_OFFSET(irq.descriptor_type),
0},
/* All done if no flag byte present in descriptor */
{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
/* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
AML_OFFSET(irq.flags),
0},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
AML_OFFSET(irq.flags),
3},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.shareable),
AML_OFFSET(irq.flags),
4},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
AML_OFFSET(irq.flags),
5}
};
/*******************************************************************************
*
* acpi_rs_set_irq
*
******************************************************************************/
struct acpi_rsconvert_info acpi_rs_set_irq[14] = {
/* Start with a default descriptor of length 3 */
{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
sizeof(struct aml_resource_irq),
ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},
/* Convert interrupt list to 16-bit IRQ bitmask */
{ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
AML_OFFSET(irq.irq_mask),
ACPI_RS_OFFSET(data.irq.interrupt_count)},
/* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
AML_OFFSET(irq.flags),
0},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
AML_OFFSET(irq.flags),
3},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.shareable),
AML_OFFSET(irq.flags),
4},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
AML_OFFSET(irq.flags),
5},
/*
* All done if the output descriptor length is required to be 3
* (i.e., optimization to 2 bytes cannot be attempted)
*/
{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
ACPI_RS_OFFSET(data.irq.descriptor_length),
3},
/* Set length to 2 bytes (no flags byte) */
{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)},
/*
* All done if the output descriptor length is required to be 2.
*
* TBD: Perhaps we should check for error if input flags are not
* compatible with a 2-byte descriptor.
*/
{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
ACPI_RS_OFFSET(data.irq.descriptor_length),
2},
/* Reset length to 3 bytes (descriptor with flags byte) */
{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)},
/*
* Check if the flags byte is necessary. Not needed if the flags are:
* ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
*/
{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
ACPI_RS_OFFSET(data.irq.triggering),
ACPI_EDGE_SENSITIVE},
{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
ACPI_RS_OFFSET(data.irq.polarity),
ACPI_ACTIVE_HIGH},
{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
ACPI_RS_OFFSET(data.irq.shareable),
ACPI_EXCLUSIVE},
/* We can optimize to a 2-byte irq_no_flags() descriptor */
{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
};
/*******************************************************************************
*
* acpi_rs_convert_ext_irq
*
******************************************************************************/
struct acpi_rsconvert_info acpi_rs_convert_ext_irq[10] = {
{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
ACPI_RS_SIZE(struct acpi_resource_extended_irq),
ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
sizeof(struct aml_resource_extended_irq),
0},
/*
* Flags: Producer/Consumer[0], Triggering[1], Polarity[2],
* Sharing[3], Wake[4]
*/
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
AML_OFFSET(extended_irq.flags),
0},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
AML_OFFSET(extended_irq.flags),
1},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
AML_OFFSET(extended_irq.flags),
2},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.shareable),
AML_OFFSET(extended_irq.flags),
3},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.wake_capable),
AML_OFFSET(extended_irq.flags),
4},
/* IRQ Table length (Byte4) */
{ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
AML_OFFSET(extended_irq.interrupt_count),
sizeof(u32)},
/* Copy every IRQ in the table, each is 32 bits */
{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
AML_OFFSET(extended_irq.interrupts[0]),
0},
/* Optional resource_source (Index and String) */
{ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
sizeof(struct aml_resource_extended_irq)}
};
/*******************************************************************************
*
* acpi_rs_convert_dma
*
******************************************************************************/
struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
ACPI_RS_SIZE(struct acpi_resource_dma),
ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},
{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
sizeof(struct aml_resource_dma),
0},
/* Flags: transfer preference, bus mastering, channel speed */
{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
AML_OFFSET(dma.flags),
0},
{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
AML_OFFSET(dma.flags),
2},
{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
AML_OFFSET(dma.flags),
5},
/* DMA channel mask bits */
{ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
AML_OFFSET(dma.dma_channel_mask),
ACPI_RS_OFFSET(data.dma.channel_count)}
};
/*******************************************************************************
*
* acpi_rs_convert_fixed_dma
*
******************************************************************************/
struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[4] = {
{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA,
ACPI_RS_SIZE(struct acpi_resource_fixed_dma),
ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_dma)},
{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA,
sizeof(struct aml_resource_fixed_dma),
0},
/*
* These fields are contiguous in both the source and destination:
* request_lines
* Channels
*/
{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_dma.request_lines),
AML_OFFSET(fixed_dma.request_lines),
2},
{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_dma.width),
AML_OFFSET(fixed_dma.width),
1},
};
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