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https://github.com/danbulant/Cosmos
synced 2026-05-19 04:18:43 +00:00
Done the ACPI API
This commit is contained in:
Elia Sulimanov
parent
9505769370
commit
b9a652e6c4
1 changed files with 168 additions and 14 deletions
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@ -5,65 +5,175 @@ using System.Runtime.InteropServices;
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namespace Cosmos.Core
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{
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/// <summary>
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/// ACPI (Advanced Configuration and Power Interface) class.
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/// </summary>
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public unsafe class ACPI
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{
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/// <summary>
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/// Debugger instance at the System ring, of the Global section.
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/// </summary>
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public static readonly Debugger mDebugger = new Debugger("System", "Global");
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//RSD Table
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/// <summary>
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/// RSD table struct.
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/// </summary>
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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public unsafe struct RSDPtr
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{
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/// <summary>
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/// Signature.
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/// </summary>
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public fixed byte Signature[8];
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/// <summary>
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/// CheckSum
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/// </summary>
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public byte CheckSum;
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/// <summary>
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/// OemID
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/// </summary>
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public fixed byte OemID[6];
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/// <summary>
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/// Revision
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/// </summary>
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public byte Revision;
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/// <summary>
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/// RSDT Address
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/// </summary>
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public int RsdtAddress;
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};
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// New Port I/O
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/// <summary>
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/// IO port.
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/// </summary>
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private static IOPort smiIO, pm1aIO, pm1bIO;
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// ACPI variables
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/// <summary>
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/// SMI CMD.
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/// </summary>
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private static int* SMI_CMD;
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/// <summary>
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/// ACPI ENABLE.
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/// </summary>
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private static byte ACPI_ENABLE;
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/// <summary>
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/// ACPI DISABLE.
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/// </summary>
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private static byte ACPI_DISABLE;
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/// <summary>
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/// PM1a CNT
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/// </summary>
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private static int* PM1a_CNT;
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/// <summary>
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/// PM1b CNT
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/// </summary>
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private static int* PM1b_CNT;
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/// <summary>
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/// SLP TYPa
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/// </summary>
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private static short SLP_TYPa;
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/// <summary>
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/// SLP TYPb
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/// </summary>
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private static short SLP_TYPb;
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/// <summary>
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/// SLP EN.
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/// </summary>
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private static short SLP_EN;
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/// <summary>
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/// SCI EN.
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/// </summary>
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private static short SCI_EN;
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/// <summary>
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/// PM1 CNT LEN1
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/// </summary>
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private static byte PM1_CNT_LEN;
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//ACPI Check Header
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/// <summary>
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/// Check ACPI header.
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/// </summary>
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/// <param name="ptr"></param>
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/// <param name="sig"></param>
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/// <returns></returns>
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static int acpiCheckHeader(byte* ptr, string sig)
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{
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return Compare(sig, ptr);
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}
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// FACP
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/// <summary>
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/// FACP.
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/// </summary>
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private static byte* Facp = null;
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/// <summary>
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/// FACP struct.
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/// </summary>
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct FACP
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{
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/// <summary>
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/// Signature.
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/// </summary>
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public fixed byte Signature[4];
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/// <summary>
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/// Length.
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/// </summary>
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public int Length;
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/// <summary>
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/// Unused.
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/// </summary>
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public fixed byte unneded1[40 - 8];
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/// <summary>
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/// DSDT.
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/// </summary>
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public int* DSDT;
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/// <summary>
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/// Unused.
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/// </summary>
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public fixed byte unneded2[48 - 44];
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/// <summary>
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/// SMI CMD.
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/// </summary>
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public int* SMI_CMD;
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/// <summary>
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/// ACPI ENABLE.
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/// </summary>
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public byte ACPI_ENABLE;
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/// <summary>
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/// ACPI DISABLE.
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/// </summary>
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public byte ACPI_DISABLE;
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/// <summary>
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/// Unused.
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/// </summary>
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public fixed byte unneded3[64 - 54];
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/// <summary>
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/// PM1a CNT BLK.
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/// </summary>
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public int* PM1a_CNT_BLK;
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/// <summary>
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/// PM1b CNT BLK.
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/// </summary>
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public int* PM1b_CNT_BLK;
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/// <summary>
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/// Unused.
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/// </summary>
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public fixed byte unneded4[89 - 72];
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/// <summary>
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/// PM1 CNT LEN.
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/// </summary>
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public byte PM1_CNT_LEN;
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};
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//Compare
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/// <summary>
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/// Compare string to byte array.
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/// </summary>
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/// <param name="c1">String.</param>
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/// <param name="c2">Pointer to the head of the byte array.</param>
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/// <returns>0 - identical, -1 different.</returns>
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static int Compare(string c1, byte* c2)
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{
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for (int i = 0; i < c1.Length; i++)
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@ -73,7 +183,11 @@ namespace Cosmos.Core
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return 0;
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}
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//Check RSD
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/// <summary>
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/// Check RSD checksum.
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/// </summary>
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/// <param name="address">Address to check.</param>
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/// <returns>True if RSDT table checksum is good.</returns>
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static bool Check_RSD(uint address)
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{
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byte sum = 0;
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@ -85,7 +199,11 @@ namespace Cosmos.Core
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return (sum == 0);
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}
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//Acpi Initialization :P
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/// <summary>
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/// Start the ACPI.
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/// </summary>
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/// <param name="initialize">Initialize the ACPI. (default = true)</param>
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/// <param name="enable">Enable the ACPI. (default = true)</param>
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public static void Start(bool initialize = true, bool enable = true)
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{
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if (initialize)
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@ -95,7 +213,6 @@ namespace Cosmos.Core
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Enable();
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}
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// Shutdown
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/// <summary>
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/// Shutdown the ACPI.
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/// </summary>
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@ -114,7 +231,6 @@ namespace Cosmos.Core
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Global.CPU.Halt();
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}
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// Reboot
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/// <summary>
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/// Reboot ACPI.
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/// Not implemented.
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@ -125,7 +241,10 @@ namespace Cosmos.Core
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throw new NotImplementedException("ACPI Reset not implemented yet."); //TODO
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}
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// Initializazion
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/// <summary>
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/// Initialize the ACPI.
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/// </summary>
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/// <returns>true on success, false on failure.</returns>
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private static bool Init()
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{
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byte* ptr = (byte*)RSDPAddress();
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@ -217,19 +336,26 @@ namespace Cosmos.Core
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return false;
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}
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// Enable ACPI
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/// <summary>
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/// Enable ACPI.
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/// </summary>
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public static void Enable()
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{
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smiIO = new IOPort(ACPI_ENABLE);
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}
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// Disable ACPI
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/// <summary>
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/// Disable ACPI.
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/// </summary>
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public static void Disable()
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{
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smiIO = new IOPort(ACPI_DISABLE);
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}
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// Retrieve the RSDP address
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/// <summary>
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/// Get the RSDP address.
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/// </summary>
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/// <returns>uint value.</returns>
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private static unsafe uint RSDPAddress()
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{
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for (uint addr = 0xE0000; addr < 0x100000; addr += 4)
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@ -247,7 +373,11 @@ namespace Cosmos.Core
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return 0;
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}
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// RSDT Table
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/// <summary>
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/// Check RSDT table
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/// </summary>
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/// <param name="ptr">A pointer to the RSDT</param>
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/// <returns>RSDT table address</returns>
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private static uint* acpiCheckRSDPtr(uint* ptr)
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{
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string sig = "RSD PTR ";
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@ -279,7 +409,18 @@ namespace Cosmos.Core
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return null;
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}
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// FACP Table
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/// <summary>
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/// Get data from the FACP table.
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/// </summary>
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/// <param name="number">Index number of the data to get.
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/// <list type="bullet">
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/// <item>0 - ACPI ENABLE</item>
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/// <item>1 - ACPI DISABLE</item>
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/// <item>2 - PM1 CNT LEN</item>
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/// <item>other - 0</item>
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/// </list>
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/// </param>
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/// <returns>byte value.</returns>
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private static byte facpbget(int number)
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{
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switch (number)
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@ -295,6 +436,19 @@ namespace Cosmos.Core
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}
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}
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/// <summary>
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/// Get pointer to the data on the FACP.
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/// </summary>
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/// <param name="number">Index number of the data to get.
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/// <list type="bullet">
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/// <item>0 - DSDT</item>
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/// <item>1 - SMI CMD</item>
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/// <item>2 - PM1a</item>
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/// <item>3 - PM1b</item>
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/// <item>other - null</item>
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/// </list>
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/// </param>
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/// <returns>int pointer.</returns>
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private static int* facpget(int number)
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{
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switch (number)
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