text: /*******************************************************************************
   *
   * 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)}
  };
  