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aslmapenter.c revision 1.1.1.14
      1       1.1  christos /******************************************************************************
      2       1.1  christos  *
      3       1.1  christos  * Module Name: aslmapenter - Build resource descriptor/device maps
      4       1.1  christos  *
      5       1.1  christos  *****************************************************************************/
      6       1.1  christos 
      7  1.1.1.14  christos /******************************************************************************
      8  1.1.1.14  christos  *
      9  1.1.1.14  christos  * 1. Copyright Notice
     10  1.1.1.14  christos  *
     11  1.1.1.14  christos  * Some or all of this work - Copyright (c) 1999 - 2024, Intel Corp.
     12       1.1  christos  * All rights reserved.
     13       1.1  christos  *
     14  1.1.1.14  christos  * 2. License
     15  1.1.1.14  christos  *
     16  1.1.1.14  christos  * 2.1. This is your license from Intel Corp. under its intellectual property
     17  1.1.1.14  christos  * rights. You may have additional license terms from the party that provided
     18  1.1.1.14  christos  * you this software, covering your right to use that party's intellectual
     19  1.1.1.14  christos  * property rights.
     20  1.1.1.14  christos  *
     21  1.1.1.14  christos  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
     22  1.1.1.14  christos  * copy of the source code appearing in this file ("Covered Code") an
     23  1.1.1.14  christos  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
     24  1.1.1.14  christos  * base code distributed originally by Intel ("Original Intel Code") to copy,
     25  1.1.1.14  christos  * make derivatives, distribute, use and display any portion of the Covered
     26  1.1.1.14  christos  * Code in any form, with the right to sublicense such rights; and
     27  1.1.1.14  christos  *
     28  1.1.1.14  christos  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
     29  1.1.1.14  christos  * license (with the right to sublicense), under only those claims of Intel
     30  1.1.1.14  christos  * patents that are infringed by the Original Intel Code, to make, use, sell,
     31  1.1.1.14  christos  * offer to sell, and import the Covered Code and derivative works thereof
     32  1.1.1.14  christos  * solely to the minimum extent necessary to exercise the above copyright
     33  1.1.1.14  christos  * license, and in no event shall the patent license extend to any additions
     34  1.1.1.14  christos  * to or modifications of the Original Intel Code. No other license or right
     35  1.1.1.14  christos  * is granted directly or by implication, estoppel or otherwise;
     36  1.1.1.14  christos  *
     37  1.1.1.14  christos  * The above copyright and patent license is granted only if the following
     38  1.1.1.14  christos  * conditions are met:
     39  1.1.1.14  christos  *
     40  1.1.1.14  christos  * 3. Conditions
     41  1.1.1.14  christos  *
     42  1.1.1.14  christos  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
     43  1.1.1.14  christos  * Redistribution of source code of any substantial portion of the Covered
     44  1.1.1.14  christos  * Code or modification with rights to further distribute source must include
     45  1.1.1.14  christos  * the above Copyright Notice, the above License, this list of Conditions,
     46  1.1.1.14  christos  * and the following Disclaimer and Export Compliance provision. In addition,
     47  1.1.1.14  christos  * Licensee must cause all Covered Code to which Licensee contributes to
     48  1.1.1.14  christos  * contain a file documenting the changes Licensee made to create that Covered
     49  1.1.1.14  christos  * Code and the date of any change. Licensee must include in that file the
     50  1.1.1.14  christos  * documentation of any changes made by any predecessor Licensee. Licensee
     51  1.1.1.14  christos  * must include a prominent statement that the modification is derived,
     52  1.1.1.14  christos  * directly or indirectly, from Original Intel Code.
     53  1.1.1.14  christos  *
     54  1.1.1.14  christos  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
     55  1.1.1.14  christos  * Redistribution of source code of any substantial portion of the Covered
     56  1.1.1.14  christos  * Code or modification without rights to further distribute source must
     57  1.1.1.14  christos  * include the following Disclaimer and Export Compliance provision in the
     58  1.1.1.14  christos  * documentation and/or other materials provided with distribution. In
     59  1.1.1.14  christos  * addition, Licensee may not authorize further sublicense of source of any
     60  1.1.1.14  christos  * portion of the Covered Code, and must include terms to the effect that the
     61  1.1.1.14  christos  * license from Licensee to its licensee is limited to the intellectual
     62  1.1.1.14  christos  * property embodied in the software Licensee provides to its licensee, and
     63  1.1.1.14  christos  * not to intellectual property embodied in modifications its licensee may
     64  1.1.1.14  christos  * make.
     65  1.1.1.14  christos  *
     66  1.1.1.14  christos  * 3.3. Redistribution of Executable. Redistribution in executable form of any
     67  1.1.1.14  christos  * substantial portion of the Covered Code or modification must reproduce the
     68  1.1.1.14  christos  * above Copyright Notice, and the following Disclaimer and Export Compliance
     69  1.1.1.14  christos  * provision in the documentation and/or other materials provided with the
     70  1.1.1.14  christos  * distribution.
     71  1.1.1.14  christos  *
     72  1.1.1.14  christos  * 3.4. Intel retains all right, title, and interest in and to the Original
     73  1.1.1.14  christos  * Intel Code.
     74  1.1.1.14  christos  *
     75  1.1.1.14  christos  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
     76  1.1.1.14  christos  * Intel shall be used in advertising or otherwise to promote the sale, use or
     77  1.1.1.14  christos  * other dealings in products derived from or relating to the Covered Code
     78  1.1.1.14  christos  * without prior written authorization from Intel.
     79  1.1.1.14  christos  *
     80  1.1.1.14  christos  * 4. Disclaimer and Export Compliance
     81  1.1.1.14  christos  *
     82  1.1.1.14  christos  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
     83  1.1.1.14  christos  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
     84  1.1.1.14  christos  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
     85  1.1.1.14  christos  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
     86  1.1.1.14  christos  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
     87  1.1.1.14  christos  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
     88  1.1.1.14  christos  * PARTICULAR PURPOSE.
     89  1.1.1.14  christos  *
     90  1.1.1.14  christos  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
     91  1.1.1.14  christos  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
     92  1.1.1.14  christos  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
     93  1.1.1.14  christos  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
     94  1.1.1.14  christos  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
     95  1.1.1.14  christos  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
     96  1.1.1.14  christos  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
     97  1.1.1.14  christos  * LIMITED REMEDY.
     98  1.1.1.14  christos  *
     99  1.1.1.14  christos  * 4.3. Licensee shall not export, either directly or indirectly, any of this
    100  1.1.1.14  christos  * software or system incorporating such software without first obtaining any
    101  1.1.1.14  christos  * required license or other approval from the U. S. Department of Commerce or
    102  1.1.1.14  christos  * any other agency or department of the United States Government. In the
    103  1.1.1.14  christos  * event Licensee exports any such software from the United States or
    104  1.1.1.14  christos  * re-exports any such software from a foreign destination, Licensee shall
    105  1.1.1.14  christos  * ensure that the distribution and export/re-export of the software is in
    106  1.1.1.14  christos  * compliance with all laws, regulations, orders, or other restrictions of the
    107  1.1.1.14  christos  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
    108  1.1.1.14  christos  * any of its subsidiaries will export/re-export any technical data, process,
    109  1.1.1.14  christos  * software, or service, directly or indirectly, to any country for which the
    110  1.1.1.14  christos  * United States government or any agency thereof requires an export license,
    111  1.1.1.14  christos  * other governmental approval, or letter of assurance, without first obtaining
    112  1.1.1.14  christos  * such license, approval or letter.
    113  1.1.1.14  christos  *
    114  1.1.1.14  christos  *****************************************************************************
    115  1.1.1.14  christos  *
    116  1.1.1.14  christos  * Alternatively, you may choose to be licensed under the terms of the
    117  1.1.1.14  christos  * following license:
    118  1.1.1.14  christos  *
    119       1.1  christos  * Redistribution and use in source and binary forms, with or without
    120       1.1  christos  * modification, are permitted provided that the following conditions
    121       1.1  christos  * are met:
    122       1.1  christos  * 1. Redistributions of source code must retain the above copyright
    123       1.1  christos  *    notice, this list of conditions, and the following disclaimer,
    124       1.1  christos  *    without modification.
    125       1.1  christos  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    126       1.1  christos  *    substantially similar to the "NO WARRANTY" disclaimer below
    127       1.1  christos  *    ("Disclaimer") and any redistribution must be conditioned upon
    128       1.1  christos  *    including a substantially similar Disclaimer requirement for further
    129       1.1  christos  *    binary redistribution.
    130       1.1  christos  * 3. Neither the names of the above-listed copyright holders nor the names
    131       1.1  christos  *    of any contributors may be used to endorse or promote products derived
    132       1.1  christos  *    from this software without specific prior written permission.
    133       1.1  christos  *
    134       1.1  christos  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    135       1.1  christos  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    136  1.1.1.11  christos  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    137       1.1  christos  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    138  1.1.1.14  christos  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    139  1.1.1.14  christos  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    140  1.1.1.14  christos  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    141  1.1.1.14  christos  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    142  1.1.1.14  christos  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    143  1.1.1.14  christos  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    144  1.1.1.14  christos  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    145  1.1.1.14  christos  *
    146  1.1.1.14  christos  * Alternatively, you may choose to be licensed under the terms of the
    147  1.1.1.14  christos  * GNU General Public License ("GPL") version 2 as published by the Free
    148  1.1.1.14  christos  * Software Foundation.
    149  1.1.1.14  christos  *
    150  1.1.1.14  christos  *****************************************************************************/
    151       1.1  christos 
    152       1.1  christos #include "acpi.h"
    153       1.1  christos #include "accommon.h"
    154       1.1  christos #include "acapps.h"
    155       1.1  christos #include "aslcompiler.h"
    156       1.1  christos 
    157       1.1  christos /* This module used for application-level code only */
    158       1.1  christos 
    159       1.1  christos #define _COMPONENT          ACPI_COMPILER
    160       1.1  christos         ACPI_MODULE_NAME    ("aslmapenter")
    161       1.1  christos 
    162       1.1  christos /* Local prototypes */
    163       1.1  christos 
    164       1.1  christos static ACPI_GPIO_INFO *
    165       1.1  christos MpCreateGpioInfo (
    166       1.1  christos     UINT16                  PinNumber,
    167       1.1  christos     char                    *DeviceName);
    168       1.1  christos 
    169       1.1  christos static ACPI_SERIAL_INFO *
    170       1.1  christos MpCreateSerialInfo (
    171       1.1  christos     char                    *DeviceName,
    172       1.1  christos     UINT16                  Address);
    173       1.1  christos 
    174       1.1  christos 
    175       1.1  christos /*******************************************************************************
    176       1.1  christos  *
    177       1.1  christos  * FUNCTION:    MpSaveGpioInfo
    178       1.1  christos  *
    179       1.1  christos  * PARAMETERS:  Resource                - GPIO resource descriptor
    180       1.1  christos  *              PinCount                - From GPIO descriptor
    181       1.1  christos  *              PinList                 - From GPIO descriptor
    182       1.1  christos  *              DeviceName              - The "ResourceSource" name
    183       1.1  christos  *
    184       1.1  christos  * RETURN:      None
    185       1.1  christos  *
    186       1.1  christos  * DESCRIPTION: External Interface.
    187       1.1  christos  *              Save GPIO resource descriptor information.
    188       1.1  christos  *              Creates new GPIO info blocks, one for each pin defined by the
    189       1.1  christos  *              GPIO descriptor.
    190       1.1  christos  *
    191       1.1  christos  ******************************************************************************/
    192       1.1  christos 
    193       1.1  christos void
    194       1.1  christos MpSaveGpioInfo (
    195       1.1  christos     ACPI_PARSE_OBJECT       *Op,
    196       1.1  christos     AML_RESOURCE            *Resource,
    197       1.1  christos     UINT32                  PinCount,
    198       1.1  christos     UINT16                  *PinList,
    199       1.1  christos     char                    *DeviceName)
    200       1.1  christos {
    201       1.1  christos     ACPI_GPIO_INFO          *Info;
    202       1.1  christos     UINT32                  i;
    203       1.1  christos 
    204       1.1  christos 
    205       1.1  christos     /* Mapfile option enabled? */
    206       1.1  christos 
    207   1.1.1.8  christos     if (!AslGbl_MapfileFlag)
    208       1.1  christos     {
    209       1.1  christos         return;
    210       1.1  christos     }
    211       1.1  christos 
    212       1.1  christos     /* Create an info block for each pin defined in the descriptor */
    213       1.1  christos 
    214       1.1  christos     for (i = 0; i < PinCount; i++)
    215       1.1  christos     {
    216       1.1  christos         Info = MpCreateGpioInfo (PinList[i], DeviceName);
    217       1.1  christos 
    218       1.1  christos         Info->Op = Op;
    219       1.1  christos         Info->DeviceName = DeviceName;
    220       1.1  christos         Info->PinCount = PinCount;
    221       1.1  christos         Info->PinIndex = i;
    222       1.1  christos         Info->PinNumber = PinList[i];
    223       1.1  christos         Info->Type = Resource->Gpio.ConnectionType;
    224       1.1  christos         Info->Direction = (UINT8) (Resource->Gpio.IntFlags & 0x0003);       /* _IOR, for IO descriptor */
    225       1.1  christos         Info->Polarity = (UINT8) ((Resource->Gpio.IntFlags >> 1) & 0x0003); /* _POL, for INT descriptor */
    226       1.1  christos     }
    227       1.1  christos }
    228       1.1  christos 
    229       1.1  christos 
    230       1.1  christos /*******************************************************************************
    231       1.1  christos  *
    232       1.1  christos  * FUNCTION:    MpSaveSerialInfo
    233       1.1  christos  *
    234       1.1  christos  * PARAMETERS:  Resource                - A Serial resource descriptor
    235       1.1  christos  *              DeviceName              - The "ResourceSource" name.
    236       1.1  christos  *
    237       1.1  christos  * RETURN:      None
    238       1.1  christos  *
    239       1.1  christos  * DESCRIPTION: External Interface.
    240       1.1  christos  *              Save serial resource descriptor information.
    241       1.1  christos  *              Creates a new serial info block.
    242       1.1  christos  *
    243       1.1  christos  ******************************************************************************/
    244       1.1  christos 
    245       1.1  christos void
    246       1.1  christos MpSaveSerialInfo (
    247       1.1  christos     ACPI_PARSE_OBJECT       *Op,
    248       1.1  christos     AML_RESOURCE            *Resource,
    249       1.1  christos     char                    *DeviceName)
    250       1.1  christos {
    251       1.1  christos     ACPI_SERIAL_INFO        *Info;
    252       1.1  christos     UINT16                  Address;
    253       1.1  christos     UINT32                  Speed;
    254       1.1  christos 
    255       1.1  christos 
    256       1.1  christos     /* Mapfile option enabled? */
    257       1.1  christos 
    258   1.1.1.8  christos     if (!AslGbl_MapfileFlag)
    259       1.1  christos     {
    260       1.1  christos         return;
    261       1.1  christos     }
    262       1.1  christos 
    263       1.1  christos     if (Resource->DescriptorType != ACPI_RESOURCE_NAME_SERIAL_BUS)
    264       1.1  christos     {
    265       1.1  christos         return;
    266       1.1  christos     }
    267       1.1  christos 
    268       1.1  christos     /* Extract address and speed from the resource descriptor */
    269       1.1  christos 
    270       1.1  christos     switch (Resource->CommonSerialBus.Type)
    271       1.1  christos     {
    272       1.1  christos     case AML_RESOURCE_I2C_SERIALBUSTYPE:
    273       1.1  christos 
    274       1.1  christos         Address = Resource->I2cSerialBus.SlaveAddress;
    275       1.1  christos         Speed = Resource->I2cSerialBus.ConnectionSpeed;
    276       1.1  christos         break;
    277       1.1  christos 
    278       1.1  christos     case AML_RESOURCE_SPI_SERIALBUSTYPE:
    279       1.1  christos 
    280       1.1  christos         Address = Resource->SpiSerialBus.DeviceSelection;
    281       1.1  christos         Speed = Resource->SpiSerialBus.ConnectionSpeed;
    282       1.1  christos         break;
    283       1.1  christos 
    284       1.1  christos     case AML_RESOURCE_UART_SERIALBUSTYPE:
    285       1.1  christos 
    286       1.1  christos         Address = 0;
    287       1.1  christos         Speed = Resource->UartSerialBus.DefaultBaudRate;
    288       1.1  christos         break;
    289       1.1  christos 
    290       1.1  christos     default:    /* Invalid bus subtype */
    291       1.1  christos         return;
    292       1.1  christos     }
    293       1.1  christos 
    294       1.1  christos     Info = MpCreateSerialInfo (DeviceName, Address);
    295       1.1  christos 
    296       1.1  christos     Info->Op = Op;
    297       1.1  christos     Info->DeviceName = DeviceName;
    298       1.1  christos     Info->Resource = Resource;
    299       1.1  christos     Info->Address = Address;
    300       1.1  christos     Info->Speed = Speed;
    301       1.1  christos }
    302       1.1  christos 
    303       1.1  christos 
    304       1.1  christos /*******************************************************************************
    305       1.1  christos  *
    306       1.1  christos  * FUNCTION:    MpCreateGpioInfo
    307       1.1  christos  *
    308       1.1  christos  * PARAMETERS:  PinNumber               - GPIO pin number
    309       1.1  christos  *              DeviceName              - The "ResourceSource" name
    310       1.1  christos  *
    311       1.1  christos  * RETURN:      New GPIO info block.
    312       1.1  christos  *
    313       1.1  christos  * DESCRIPTION: Create a new GPIO info block and place it on the global list.
    314       1.1  christos  *              The list is sorted by GPIO device names first, and pin numbers
    315       1.1  christos  *              secondarily.
    316       1.1  christos  *
    317       1.1  christos  ******************************************************************************/
    318       1.1  christos 
    319       1.1  christos static ACPI_GPIO_INFO *
    320       1.1  christos MpCreateGpioInfo (
    321       1.1  christos     UINT16                  PinNumber,
    322       1.1  christos     char                    *DeviceName)
    323       1.1  christos {
    324       1.1  christos     ACPI_GPIO_INFO          *Info;
    325       1.1  christos     ACPI_GPIO_INFO          *NextGpio;
    326       1.1  christos     ACPI_GPIO_INFO          *PrevGpio;
    327   1.1.1.2  christos     char                    *Buffer;
    328       1.1  christos 
    329       1.1  christos 
    330       1.1  christos     /*
    331       1.1  christos      * Allocate a new info block and insert it into the global GPIO list
    332       1.1  christos      * sorted by both source device name and then the pin number. There is
    333       1.1  christos      * one block per pin.
    334       1.1  christos      */
    335   1.1.1.6  christos     Buffer = UtLocalCacheCalloc (sizeof (ACPI_GPIO_INFO));
    336   1.1.1.2  christos     Info = ACPI_CAST_PTR (ACPI_GPIO_INFO, Buffer);
    337       1.1  christos 
    338   1.1.1.8  christos     NextGpio = AslGbl_GpioList;
    339       1.1  christos     PrevGpio = NULL;
    340   1.1.1.8  christos     if (!AslGbl_GpioList)
    341       1.1  christos     {
    342   1.1.1.8  christos         AslGbl_GpioList = Info;
    343       1.1  christos         Info->Next = NULL;
    344       1.1  christos         return (Info);
    345       1.1  christos     }
    346       1.1  christos 
    347       1.1  christos     /* Sort on source DeviceName first */
    348       1.1  christos 
    349       1.1  christos     while (NextGpio &&
    350   1.1.1.4  christos         (strcmp (DeviceName, NextGpio->DeviceName) > 0))
    351       1.1  christos     {
    352       1.1  christos         PrevGpio = NextGpio;
    353       1.1  christos         NextGpio = NextGpio->Next;
    354       1.1  christos     }
    355       1.1  christos 
    356       1.1  christos     /* Now sort on the PinNumber */
    357       1.1  christos 
    358       1.1  christos     while (NextGpio &&
    359   1.1.1.4  christos         (NextGpio->PinNumber < PinNumber) &&
    360   1.1.1.4  christos         !strcmp (DeviceName, NextGpio->DeviceName))
    361       1.1  christos     {
    362       1.1  christos         PrevGpio = NextGpio;
    363       1.1  christos         NextGpio = NextGpio->Next;
    364       1.1  christos     }
    365       1.1  christos 
    366       1.1  christos     /* Finish the list insertion */
    367       1.1  christos 
    368       1.1  christos     if (PrevGpio)
    369       1.1  christos     {
    370       1.1  christos         PrevGpio->Next = Info;
    371       1.1  christos     }
    372       1.1  christos     else
    373       1.1  christos     {
    374   1.1.1.8  christos         AslGbl_GpioList = Info;
    375       1.1  christos     }
    376       1.1  christos 
    377       1.1  christos     Info->Next = NextGpio;
    378       1.1  christos     return (Info);
    379       1.1  christos }
    380       1.1  christos 
    381       1.1  christos 
    382       1.1  christos /*******************************************************************************
    383       1.1  christos  *
    384       1.1  christos  * FUNCTION:    MpCreateSerialInfo
    385       1.1  christos  *
    386       1.1  christos  * PARAMETERS:  DeviceName              - The "ResourceSource" name.
    387       1.1  christos  *              Address                 - Physical address for the device
    388       1.1  christos  *
    389       1.1  christos  * RETURN:      New Serial info block.
    390       1.1  christos  *
    391       1.1  christos  * DESCRIPTION: Create a new Serial info block and place it on the global list.
    392       1.1  christos  *              The list is sorted by Serial device names first, and addresses
    393       1.1  christos  *              secondarily.
    394       1.1  christos  *
    395       1.1  christos  ******************************************************************************/
    396       1.1  christos 
    397       1.1  christos static ACPI_SERIAL_INFO *
    398       1.1  christos MpCreateSerialInfo (
    399       1.1  christos     char                    *DeviceName,
    400       1.1  christos     UINT16                  Address)
    401       1.1  christos {
    402       1.1  christos     ACPI_SERIAL_INFO        *Info;
    403       1.1  christos     ACPI_SERIAL_INFO        *NextSerial;
    404       1.1  christos     ACPI_SERIAL_INFO        *PrevSerial;
    405   1.1.1.2  christos     char                    *Buffer;
    406       1.1  christos 
    407       1.1  christos 
    408       1.1  christos     /*
    409       1.1  christos      * Allocate a new info block and insert it into the global Serial list
    410       1.1  christos      * sorted by both source device name and then the address.
    411       1.1  christos      */
    412   1.1.1.6  christos     Buffer = UtLocalCacheCalloc (sizeof (ACPI_SERIAL_INFO));
    413   1.1.1.2  christos     Info = ACPI_CAST_PTR (ACPI_SERIAL_INFO, Buffer);
    414       1.1  christos 
    415   1.1.1.8  christos     NextSerial = AslGbl_SerialList;
    416       1.1  christos     PrevSerial = NULL;
    417   1.1.1.8  christos     if (!AslGbl_SerialList)
    418       1.1  christos     {
    419   1.1.1.8  christos         AslGbl_SerialList = Info;
    420       1.1  christos         Info->Next = NULL;
    421       1.1  christos         return (Info);
    422       1.1  christos     }
    423       1.1  christos 
    424       1.1  christos     /* Sort on source DeviceName */
    425       1.1  christos 
    426       1.1  christos     while (NextSerial &&
    427   1.1.1.3  christos         (strcmp (DeviceName, NextSerial->DeviceName) > 0))
    428       1.1  christos     {
    429       1.1  christos         PrevSerial = NextSerial;
    430       1.1  christos         NextSerial = NextSerial->Next;
    431       1.1  christos     }
    432       1.1  christos 
    433       1.1  christos     /* Now sort on the Address */
    434       1.1  christos 
    435       1.1  christos     while (NextSerial &&
    436       1.1  christos         (NextSerial->Address < Address) &&
    437   1.1.1.3  christos         !strcmp (DeviceName, NextSerial->DeviceName))
    438       1.1  christos     {
    439       1.1  christos         PrevSerial = NextSerial;
    440       1.1  christos         NextSerial = NextSerial->Next;
    441       1.1  christos     }
    442       1.1  christos 
    443       1.1  christos     /* Finish the list insertion */
    444       1.1  christos 
    445       1.1  christos     if (PrevSerial)
    446       1.1  christos     {
    447       1.1  christos         PrevSerial->Next = Info;
    448       1.1  christos     }
    449       1.1  christos     else
    450       1.1  christos     {
    451   1.1.1.8  christos         AslGbl_SerialList = Info;
    452       1.1  christos     }
    453       1.1  christos 
    454       1.1  christos     Info->Next = NextSerial;
    455       1.1  christos     return (Info);
    456       1.1  christos }
    457