Release 4.11 drivers/acpi/acpica/rsio.c

Directory: drivers/acpi/acpica
/*******************************************************************************
 *
 * Module Name: rsio - IO and DMA resource descriptors
 *
 ******************************************************************************/

/*
 * Copyright (C) 2000 - 2017, Intel Corp.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */

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


#define _COMPONENT          ACPI_RESOURCES
ACPI_MODULE_NAME("rsio")

/*******************************************************************************
 *
 * acpi_rs_convert_io
 *
 ******************************************************************************/

struct acpi_rsconvert_info acpi_rs_convert_io[5] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IO,
	 ACPI_RS_SIZE(struct acpi_resource_io),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io)},

	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO,
	 sizeof(struct aml_resource_io),
	 0},

	/* Decode flag */

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.io.io_decode),
	 AML_OFFSET(io.flags),
	 0},
	/*
         * These fields are contiguous in both the source and destination:
         * Address Alignment
         * Length
         * Minimum Base Address
         * Maximum Base Address
         */
	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.io.alignment),
	 AML_OFFSET(io.alignment),
	 2},

	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.io.minimum),
	 AML_OFFSET(io.minimum),
	 2}
};

/*******************************************************************************
 *
 * acpi_rs_convert_fixed_io
 *
 ******************************************************************************/


struct acpi_rsconvert_info acpi_rs_convert_fixed_io[4] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_IO,
	 ACPI_RS_SIZE(struct acpi_resource_fixed_io),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_io)},

	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO,
	 sizeof(struct aml_resource_fixed_io),
	 0},
	/*
         * These fields are contiguous in both the source and destination:
         * Base Address
         * Length
         */
	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_io.address_length),
	 AML_OFFSET(fixed_io.address_length),
	 1},

	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_io.address),
	 AML_OFFSET(fixed_io.address),
	 1}
};

/*******************************************************************************
 *
 * acpi_rs_convert_generic_reg
 *
 ******************************************************************************/


struct acpi_rsconvert_info acpi_rs_convert_generic_reg[4] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GENERIC_REGISTER,
	 ACPI_RS_SIZE(struct acpi_resource_generic_register),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_generic_reg)},

	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER,
	 sizeof(struct aml_resource_generic_register),
	 0},
	/*
         * These fields are contiguous in both the source and destination:
         * Address Space ID
         * Register Bit Width
         * Register Bit Offset
         * Access Size
         */
	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.generic_reg.space_id),
	 AML_OFFSET(generic_reg.address_space_id),
	 4},

	/* Get the Register Address */

	{ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.generic_reg.address),
	 AML_OFFSET(generic_reg.address),
	 1}
};

/*******************************************************************************
 *
 * acpi_rs_convert_end_dpf
 *
 ******************************************************************************/


struct acpi_rsconvert_info acpi_rs_convert_end_dpf[2] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_DEPENDENT,
	 ACPI_RS_SIZE_MIN,
	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_dpf)},

	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_DEPENDENT,
	 sizeof(struct aml_resource_end_dependent),
	 0}
};

/*******************************************************************************
 *
 * acpi_rs_convert_end_tag
 *
 ******************************************************************************/


struct acpi_rsconvert_info acpi_rs_convert_end_tag[2] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_TAG,
	 ACPI_RS_SIZE_MIN,
	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_tag)},

	/*
         * Note: The checksum field is set to zero, meaning that the resource
         * data is treated as if the checksum operation succeeded.
         * (ACPI Spec 1.0b Section 6.4.2.8)
         */
	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG,
	 sizeof(struct aml_resource_end_tag),
	 0}
};

/*******************************************************************************
 *
 * acpi_rs_get_start_dpf
 *
 ******************************************************************************/


struct acpi_rsconvert_info acpi_rs_get_start_dpf[6] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_START_DEPENDENT,
	 ACPI_RS_SIZE(struct acpi_resource_start_dependent),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_get_start_dpf)},

	/* Defaults for Compatibility and Performance priorities */

	{ACPI_RSC_SET8, ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
	 ACPI_ACCEPTABLE_CONFIGURATION,
	 2},

	/* Get the descriptor length (0 or 1 for Start Dpf descriptor) */

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.start_dpf.descriptor_length),
	 AML_OFFSET(start_dpf.descriptor_type),
	 0},

	/* All done if there is no flag byte present in the descriptor */

	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1},

	/* Flag byte is present, get the flags */

	{ACPI_RSC_2BITFLAG,
	 ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
	 AML_OFFSET(start_dpf.flags),
	 0},

	{ACPI_RSC_2BITFLAG,
	 ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
	 AML_OFFSET(start_dpf.flags),
	 2}
};

/*******************************************************************************
 *
 * acpi_rs_set_start_dpf
 *
 ******************************************************************************/


struct acpi_rsconvert_info acpi_rs_set_start_dpf[10] = {
	/* Start with a default descriptor of length 1 */

	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT,
	 sizeof(struct aml_resource_start_dependent),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_set_start_dpf)},

	/* Set the default flag values */

	{ACPI_RSC_2BITFLAG,
	 ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
	 AML_OFFSET(start_dpf.flags),
	 0},

	{ACPI_RSC_2BITFLAG,
	 ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
	 AML_OFFSET(start_dpf.flags),
	 2},
	/*
         * All done if the output descriptor length is required to be 1
         * (i.e., optimization to 0 bytes cannot be attempted)
         */
	{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
	 ACPI_RS_OFFSET(data.start_dpf.descriptor_length),
	 1},

	/* Set length to 0 bytes (no flags byte) */

	{ACPI_RSC_LENGTH, 0, 0,
	 sizeof(struct aml_resource_start_dependent_noprio)},

	/*
         * All done if the output descriptor length is required to be 0.
         *
         * TBD: Perhaps we should check for error if input flags are not
         * compatible with a 0-byte descriptor.
         */
	{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
	 ACPI_RS_OFFSET(data.start_dpf.descriptor_length),
	 0},

	/* Reset length to 1 byte (descriptor with flags byte) */

	{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_start_dependent)},

	/*
         * All done if flags byte is necessary -- if either priority value
         * is not ACPI_ACCEPTABLE_CONFIGURATION
         */
	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
	 ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
	 ACPI_ACCEPTABLE_CONFIGURATION},

	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
	 ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
	 ACPI_ACCEPTABLE_CONFIGURATION},

	/* Flag byte is not necessary */

	{ACPI_RSC_LENGTH, 0, 0,
	 sizeof(struct aml_resource_start_dependent_noprio)}
};
Overall Contributors
Person Tokens Prop Commits CommitProp
Robert Moore 595 86.36% 6 35.29%
Linus Torvalds (pre-git) 69 10.01% 3 17.65%
Linus Torvalds 16 2.32% 2 11.76%
Andy Grover 6 0.87% 4 23.53%
Len Brown 2 0.29% 1 5.88%
Patrick Mochel 1 0.15% 1 5.88%
Total 689 100.00% 17 100.00%
Directory: drivers/acpi/acpica

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
Robert Moore	595	86.36%	6	35.29%
Linus Torvalds (pre-git)	69	10.01%	3	17.65%
Linus Torvalds	16	2.32%	2	11.76%
Andy Grover	6	0.87%	4	23.53%
Len Brown	2	0.29%	1	5.88%
Patrick Mochel	1	0.15%	1	5.88%
Total	689	100.00%	17	100.00%
cregit-Linux how code gets into the kernel

Release 4.11 drivers/acpi/acpica/rsio.c

Overall Contributors
