272 lines
7.5 KiB
C
272 lines
7.5 KiB
C
// 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},
|
|
};
|