52 lines
1.8 KiB
C#
52 lines
1.8 KiB
C#
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//
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// Copyright (c) 2010-2024 Antmicro
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//
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// This file is licensed under the MIT License.
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// Full license text is available in 'licenses/MIT.txt'.
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//
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using System.Linq;
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using System.Text;
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using Antmicro.Renode.Core;
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using Antmicro.Renode.Logging;
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using Antmicro.Renode.Peripherals.Bus;
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namespace Antmicro.Renode.Peripherals.CPU
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{
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public class SampleStateAwarePeripheral : IDoubleWordPeripheral, IKnownSize
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{
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public SampleStateAwarePeripheral(IMachine machine, long size)
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{
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this.size = size;
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sysbus = machine.GetSystemBus(this);
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}
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public void Reset()
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{
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}
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public uint ReadDoubleWord(long offset)
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{
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if(!sysbus.TryGetCurrentContextState<CortexM.ContextState>(out var initiator, out var cpuState))
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{
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this.WarningLog("No context");
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return 0;
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}
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var peripheralName = initiator.GetName().Split('.')[1];
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bool privileged = (bool)cpuState.Privileged, cpuSecure = (bool)cpuState.CpuSecure, attributionSecure = (bool)cpuState.AttributionSecure;
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this.WarningLog("Read from context: {0} state.Privileged: {1}, state.CpuSecure: {2}, state.AttributionSecure: {3}", peripheralName, privileged, cpuSecure, attributionSecure);
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var peripheralNameBytes = Encoding.UTF8.GetBytes(peripheralName).Take(3).Aggregate(0U, (v, b) => (v << 8) | b);
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return (peripheralNameBytes << 8) | ((privileged ? 1u : 0) << 0) | ((cpuSecure ? 1u : 0) << 1) | ((attributionSecure ? 1u : 0) << 2);
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}
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public void WriteDoubleWord(long offset, uint value)
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{
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}
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public long Size => size;
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private readonly long size;
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private readonly IBusController sysbus;
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}
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}
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