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      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 
     54