uefi/linaro-edk2/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/IoTVirtualDevice.asl

/** @file
Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution.  The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

Device(IOTD) { 
  Name(_HID, "MSFT8000")
  Name(_CID, "MSFT8000")
  
  Name(_CRS, ResourceTemplate() {  
    // Index 0 
    SPISerialBus(            // Pin 5, 7, 9 , 11 of JP1 for SIO_SPI
      1,                     // Device selection
      PolarityLow,           // Device selection polarity
      FourWireMode,          // wiremode
      8,                     // databit len
      ControllerInitiated,   // slave mode
      8000000,               // Connection speed
      ClockPolarityLow,      // Clock polarity
      ClockPhaseSecond,      // clock phase
      "\\_SB.SPI1",          // ResourceSource: SPI bus controller name
      0,                     // ResourceSourceIndex
      ResourceConsumer,      // Resource usage
      JSPI,                  // DescriptorName: creates name for offset of resource descriptor
      )                      // Vendor Data  
    
    // Index 1     
    I2CSerialBus(            // Pin 13, 15 of JP1, for SIO_I2C5 (signal)
      0x00,                  // SlaveAddress: bus address (TBD)
      ,                      // SlaveMode: default to ControllerInitiated
      400000,                // ConnectionSpeed: in Hz
      ,                      // Addressing Mode: default to 7 bit
      "\\_SB.I2C6",          // ResourceSource: I2C bus controller name (For MinnowBoard Max, hardware I2C5(0-based) is reported as ACPI I2C6(1-based))
      ,
      ,
      JI2C,                  // Descriptor Name: creates name for offset of resource descriptor
      )                      // VendorData
    
    // Index 2
    UARTSerialBus(           // Pin 17, 19 of JP1, for SIO_UART2
      115200,                // InitialBaudRate: in bits ber second
      ,                      // BitsPerByte: default to 8 bits
      ,                      // StopBits: Defaults to one bit
      0xfc,                  // LinesInUse: 8 1-bit flags to declare line enabled
      ,                      // IsBigEndian: default to LittleEndian
      ,                      // Parity: Defaults to no parity
      ,                      // FlowControl: Defaults to no flow control
      32,                    // ReceiveBufferSize
      32,                    // TransmitBufferSize
      "\\_SB.URT2",          // ResourceSource: UART bus controller name
      ,
      ,
      UAR2,                  // DescriptorName: creates name for offset of resource descriptor
      )                      
    
    // Index 3
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO2",) {0}  // Pin 21 of JP1 (GPIO_S5[00])
    // Index 4
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO2",) {0} 
    
    // Index 5
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO2",) {1}  // Pin 23 of JP1 (GPIO_S5[01])
    // Index 6
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO2",) {1}
    
    // Index 7
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO2",) {2}  // Pin 25 of JP1 (GPIO_S5[02])
    // Index 8
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO2",) {2} 
    
    // Index 9
    UARTSerialBus(           // Pin 6, 8, 10, 12 of JP1, for SIO_UART1
      115200,                // InitialBaudRate: in bits ber second
      ,                      // BitsPerByte: default to 8 bits
      ,                      // StopBits: Defaults to one bit
      0xfc,                  // LinesInUse: 8 1-bit flags to declare line enabled
      ,                      // IsBigEndian: default to LittleEndian
      ,                      // Parity: Defaults to no parity
      FlowControlHardware,   // FlowControl: Defaults to no flow control
      32,                    // ReceiveBufferSize
      32,                    // TransmitBufferSize
      "\\_SB.URT1",          // ResourceSource: UART bus controller name
      ,
      ,
      UAR1,              // DescriptorName: creates name for offset of resource descriptor
      )  
    
    // Index 10
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO0",) {62}  // Pin 14 of JP1 (GPIO_SC[62])
    // Index 11
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO0",) {62} 
    
    // Index 12
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO0",) {63}  // Pin 16 of JP1 (GPIO_SC[63])
    // Index 13
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO0",) {63} 
    
    // Index 14
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO0",) {65}  // Pin 18 of JP1 (GPIO_SC[65])
    // Index 15
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO0",) {65} 
    
    // Index 16
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO0",) {64}  // Pin 20 of JP1 (GPIO_SC[64])
    // Index 17
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO0",) {64} 
    
    // Index 18
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO0",) {94}  // Pin 22 of JP1 (GPIO_SC[94])
    // Index 19
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO0",) {94} 
    
    // Index 20
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO0",) {95}  // Pin 24 of JP1 (GPIO_SC[95])
    // Index 21
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO0",) {95} 
    
    // Index 22
    GpioIo (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPO0",) {54}  // Pin 26 of JP1 (GPIO_SC[54])
    // Index 23
    GpioInt(Edge, ActiveBoth, SharedAndWake, PullNone, 0,"\\_SB.GPO0",) {54}
  })

  Name(_DSD, Package() {
    ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
    Package(1) {	  // Just one Property for IOT (at this time) 
      Package(2) {	//The “symbolic-identifiers” property
        "symbolic-identifiers", 
        Package() {	//Contains all the <resource index, symbolic-identifier> pairs       
          0, "SPI0",	  
          1, "I2C5",		
          2, "UART2",
          3, 21,       // Pin 21 of JP1 (GPIO_S5[00])
          4, 21,       // Pin 21 for separate resource. 
          5, 23,       // Pin 23 of JP1 (GPIO_S5[01])
          6, 23,
          7, 25,       // Pin 25 of JP1 (GPIO_S5[02])
          8, 25,
          9, "UART1",
          10, 14,      // Pin 14 of JP1 (GPIO_SC[62])
          11, 14,
          12, 16,      // Pin 16 of JP1 (GPIO_SC[63])
          13, 16,
          14, 18,      // Pin 18 of JP1 (GPIO_SC[65])
          15, 18,
          16, 20,      // Pin 20 of JP1 (GPIO_SC[64])
          17, 20,
          18, 22,      // Pin 22 of JP1 (GPIO_SC[94])
          19, 22,
          20, 24,      // Pin 24 of JP1 (GPIO_SC[95])
          21, 24,
          22, 26,      // Pin 26 of JP1 (GPIO_SC[54])
          23, 26
        }
      } 
    }
  })
  
  Method(_STA,0,Serialized) {
    
    //
    // Only report IoT virtual device when all pins' configuration follows MSFT's datasheet.
    //
    If (LEqual(IOT, 1)) {
      Return (0xF)
    }
    
    Return (0x0)
  }
}