peripherals: add rtc/i2c/pwdet combo block

This undocumented block appears to do something important, but we just need to report that i2c is locked. Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-05 19:54:44 +08:00
parent 79f515d63e
commit 1283cd2eff
3 changed files with 103 additions and 163 deletions
--- a/peripherals/ESP32S3_RTC_I2C_PWDET.cs
+++ b/peripherals/ESP32S3_RTC_I2C_PWDET.cs
@ -0,0 +1,99 @@
+//
+// Copyright (c) 2010-2023 Antmicro
+// Copyright (c) 2011-2015 Realtime Embedded
+//
+// This file is licensed under the MIT License.
+// Full license text is available in 'licenses/MIT.txt'.
+//
+using System;
+using Antmicro.Renode.Peripherals.Bus;
+using Antmicro.Renode.Core;
+using Antmicro.Renode.Peripherals;
+using Antmicro.Renode.Utilities;
+using Antmicro.Renode.Logging;
+using System.Collections.Generic;
+using Antmicro.Renode.Core.Structure.Registers;
+
+namespace Antmicro.Renode.Peripherals.Miscellaneous
+{
+    public class ESP32S3_RTC_I2C_PWDET : IBytePeripheral, IDoubleWordPeripheral, IKnownSize
+    {
+        public ESP32S3_RTC_I2C_PWDET(Machine machine)
+        {
+            var registersMap = new Dictionary<long, DoubleWordRegister>
+            {
+                {(long)Registers.I2C_MST_ANA_CONF0, new DoubleWordRegister(this)
+                    .WithFlag(2, FieldMode.Read | FieldMode.Write, name: "BBPLL_STOP_FORCE_HIGH")
+                    .WithFlag(3, FieldMode.Read | FieldMode.Write, name: "BBPLL_STOP_FORCE_LOW")
+                    .WithFlag(24, FieldMode.Read | FieldMode.Write, valueProviderCallback: (_) => true, name: "BBPLL_CAL_DONE")
+                },
+                // {(long)Registers.ANA_CONFIG, new DoubleWordRegister(this)
+                //     .WithValueField(0, 8, FieldMode.Read | FieldMode.Write, name: "CONFIG")
+                //     .WithFlag(17, FieldMode.Read | FieldMode.Write, name: "BBPLL")
+                //     .WithFlag(18, FieldMode.Read | FieldMode.Write, name: "SAR")
+                // },
+                // {(long)Registers.ANA_CONFIG2, new DoubleWordRegister(this)
+                //     .WithFlag(16, FieldMode.Read | FieldMode.Write, name: "SAR_CFG2")
+                // },
+                // {(long)Registers.PWDET_CONF, new DoubleWordRegister(this)
+                //     .WithFlag(6, FieldMode.Read | FieldMode.Write, name: "SAR_POWER_CNTL")
+                //     .WithFlag(7, FieldMode.Read | FieldMode.Write, name: "SAR_POWER_FORCE")
+                // },
+            };
+
+            registers = new DoubleWordRegisterCollection(this, registersMap);
+        }
+
+        public uint ReadDoubleWord(long offset)
+        {
+            return registers.Read(offset);
+        }
+
+        public byte ReadByte(long offset)
+        {
+            if (offset % 4 != 0)
+            {
+                // in the current configuration, only the lowest byte
+                // contains a meaningful data
+                return 0;
+            }
+            return (byte)ReadDoubleWord(offset);
+        }
+
+        public void Reset()
+        {
+            // base.Reset();
+            registers.Reset();
+
+            // UpdateInterrupts();
+        }
+
+        public void WriteDoubleWord(long offset, uint value)
+        {
+            registers.Write(offset, value);
+        }
+
+        public void WriteByte(long offset, byte value)
+        {
+            if (offset % 4 != 0)
+            {
+                // in the current configuration, only the lowest byte
+                // contains a meaningful data
+                return;
+            }
+
+            WriteDoubleWord(offset, value);
+        }
+
+        public long Size => 0x17C;
+        private readonly DoubleWordRegisterCollection registers;
+
+        private enum Registers : long
+        {
+            I2C_MST_ANA_CONF0 = 0x40,
+            ANA_CONFIG = 0x44,
+            ANA_CONFIG2 = 0x48,
+            PWDET_CONF = 0x60,
+        }
+    }
+}