1 // 2 // Copyright (c) 2010-2021 Antmicro 3 // 4 // This file is licensed under the MIT License. 5 // Full license text is available in 'licenses/MIT.txt'. 6 7 using System; 8 using System.Collections.Generic; 9 using Antmicro.Renode.Core; 10 using Antmicro.Renode.Core.Structure.Registers; 11 using Antmicro.Renode.Peripherals.Bus; 12 13 namespace Antmicro.Renode.Peripherals.UART 14 { 15 public class PULP_STDOUT : UARTBase, IDoubleWordPeripheral, IKnownSize 16 { PULP_STDOUT(IMachine machine)17 public PULP_STDOUT(IMachine machine) : base(machine) 18 { 19 CreateRegisters(); 20 } 21 ReadDoubleWord(long offset)22 public uint ReadDoubleWord(long offset) 23 { 24 return registers.Read(offset); 25 } 26 WriteDoubleWord(long offset, uint value)27 public void WriteDoubleWord(long offset, uint value) 28 { 29 registers.Write(offset, value); 30 } 31 Reset()32 public override void Reset() 33 { 34 base.Reset(); 35 registers.Reset(); 36 } 37 38 public long Size => 0x4; 39 40 // None of those properties are used, we need them only to keep the compiler happy 41 public override Bits StopBits => Bits.One; 42 public override Parity ParityBit => Parity.None; 43 public override uint BaudRate => 0; 44 CharWritten()45 protected override void CharWritten() 46 { 47 // intentionally left blank 48 } 49 QueueEmptied()50 protected override void QueueEmptied() 51 { 52 // intentionally left blank 53 } 54 CreateRegisters()55 private void CreateRegisters() 56 { 57 var registersMap = new Dictionary<long, DoubleWordRegister> 58 { 59 {(long)Registers.StandardOutput, new DoubleWordRegister(this) 60 .WithValueField(0, 16, FieldMode.Write, writeCallback: (_, val) => this.TransmitCharacter((byte)val), name: "STD_OUT") 61 .WithReservedBits(16, 16) 62 }, 63 }; 64 registers = new DoubleWordRegisterCollection(this, registersMap); 65 } 66 67 private DoubleWordRegisterCollection registers; 68 69 private enum Registers : long 70 { 71 StandardOutput = 0, 72 } 73 } 74 } 75
