QuarkPlatformPkg/Acpi/AcpiTables/Dsdt/CY8C9540A.asi

   1 /** @file
   2
   3 Copyright (c) 2013-2015 Intel Corporation.
   4
   5 This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 CY8C9540A 40 Bit I/O Expander with EEPROM.
  14
  15 **/
  16
  17 Device(CY8C)
  18 {
  19     Name(_HID, "INT3490") // Cypress CY8C9540A Io Expander Function.
  20     Name(_CID, "INT3490")
  21
  22     Name(RBUF, ResourceTemplate()
  23     {
  24         I2CSerialBus(0x20, ControllerInitiated, 100000, AddressingMode7Bit, "\\_SB.PCI0.GIP0.I2C_", 0, ResourceConsumer, , )
  25         GpioInt (Level, ActiveLow, Exclusive, PullDefault, , "\\_SB.PCI0.GIP0.GPO", 0, ResourceConsumer, , ) {QUARK_GPIO5_MAPPING} /* GPIO<5> is INT_S0 */
  26     })
  27     Method(_CRS, 0x0, NotSerialized)
  28     {
  29         CreateByteField(RBUF, 16, OB1)
  30         if (LEqual (ALTS, 0))
  31         {
  32             Store(0x20, OB1)
  33         }
  34         Else
  35         {
  36             Store(0x21, OB1)
  37         }
  38         Return(RBUF)
  39     }
  40     Method(_STA, 0x0, NotSerialized)
  41     {
  42         //
  43         // Only Galileo platform has this device.
  44         // EFI_PLATFORM_TYPE enum value Galileo = 6.
  45         //
  46         If(LNotEqual(PTYP, 6))
  47         {
  48           return (0)
  49         }
  50         Return(0xf)
  51     }
  52 }
  53