IMP: :boom: Breaking changes some checks are needed to be done.

Signed-off-by: Amlal <amlalelmahrouss@icloud.com>

7 files changed, 298 insertions, 0 deletions

diff --git a/dev/Kernel/HALKit/AMD64/PCI/DMA.cc b/dev/Kernel/HALKit/AMD64/PCI/DMA.cc
new file mode 100644
index 00000000..192b37ba
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/DMA.cc
@@ -0,0 +1,82 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/DMA.h>
+
+namespace Kernel
+{
+	DMAWrapper::operator bool()
+	{
+		return fAddress;
+	}
+
+	bool DMAWrapper::operator!()
+	{
+		return !fAddress;
+	}
+
+	Boolean DMAWrapper::Check(UIntPtr offset) const
+	{
+		if (!fAddress)
+			return false;
+		if (offset == 0)
+			return true;
+
+		kcout << "[DMAWrapper::IsIn] Checking offset..\n";
+		return reinterpret_cast<UIntPtr>(fAddress) >= offset;
+	}
+
+	bool DMAWrapper::Write(const UIntPtr& bit, const UIntPtr& offset)
+	{
+		if (!fAddress)
+			return false;
+
+		kcout << "[DMAWrapper::Write] Writing at address..\n";
+
+		auto addr =
+			(volatile UIntPtr*)(reinterpret_cast<UIntPtr>(fAddress) + offset);
+		*addr = bit;
+
+		return true;
+	}
+
+	UIntPtr DMAWrapper::Read(const UIntPtr& offset)
+	{
+		kcout << "[DMAWrapper::Read] checking fAddress..\n";
+		if (!fAddress)
+			return 0;
+
+		kcout << "[DMAWrapper::Read] Reading fAddress..\n";
+		return *(volatile UIntPtr*)(reinterpret_cast<UIntPtr>(fAddress) + offset);
+		;
+	}
+
+	UIntPtr DMAWrapper::operator[](const UIntPtr& offset)
+	{
+		return this->Read(offset);
+	}
+
+	OwnPtr<IOBuf<Char*>> DMAFactory::Construct(OwnPtr<DMAWrapper>& dma)
+	{
+		if (!dma)
+			return {};
+
+		OwnPtr<IOBuf<Char*>> dmaOwnPtr =
+			make_ptr<IOBuf<Char*>, char*>(reinterpret_cast<char*>(dma->fAddress));
+
+		if (!dmaOwnPtr)
+			return {};
+
+		kcout << "Returning the new OwnPtr<IOBuf<Char*>>!\r";
+		return dmaOwnPtr;
+	}
+
+	DMAWrapper& DMAWrapper::operator=(voidPtr Ptr)
+	{
+		fAddress = Ptr;
+		return *this;
+	}
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/PCI/Database.cc b/dev/Kernel/HALKit/AMD64/PCI/Database.cc
new file mode 100644
index 00000000..381b63c4
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/Database.cc
@@ -0,0 +1,11 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/Database.h>
+
+namespace Kernel
+{
+}
diff --git a/dev/Kernel/HALKit/AMD64/PCI/Device.cc b/dev/Kernel/HALKit/AMD64/PCI/Device.cc
new file mode 100644
index 00000000..46286a03
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/Device.cc
@@ -0,0 +1,139 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/PCI/Device.h>
+
+Kernel::UInt ZKA_PCIReadRaw(Kernel::UInt bar, Kernel::UShort bus, Kernel::UShort dev, Kernel::UShort fun)
+{
+	Kernel::UInt target = 0x80000000 | ((Kernel::UInt)bus << 16) |
+						  ((Kernel::UInt)dev << 11) | ((Kernel::UInt)fun << 8) |
+						  (bar & 0xFC);
+
+	Kernel::HAL::rt_out32((Kernel::UShort)Kernel::PCI::PciConfigKind::ConfigAddress,
+						  target);
+
+	return Kernel::HAL::rt_in32((Kernel::UShort)Kernel::PCI::PciConfigKind::ConfigData);
+}
+
+void ZKA_PCISetCfgTarget(Kernel::UInt bar, Kernel::UShort bus, Kernel::UShort dev, Kernel::UShort fun)
+{
+	Kernel::UInt target = 0x80000000 | ((Kernel::UInt)bus << 16) |
+						  ((Kernel::UInt)dev << 11) | ((Kernel::UInt)fun << 8) |
+						  (bar & ~3);
+
+	Kernel::HAL::rt_out32((Kernel::UShort)Kernel::PCI::PciConfigKind::ConfigAddress,
+						  target);
+}
+
+#define PCI_BAR_IO		 0x01
+#define PCI_BAR_LOWMEM	 0x02
+#define PCI_BAR_64		 0x04
+#define PCI_BAR_PREFETCH 0x08
+
+namespace Kernel::PCI
+{
+	Device::Device(UShort bus, UShort device, UShort func, UInt32 bar)
+		: fBus(bus), fDevice(device), fFunction(func), fBar(bar)
+	{
+	}
+
+	Device::~Device() = default;
+
+	UInt Device::Read(UInt bar, Size sz)
+	{
+		ZKA_PCISetCfgTarget(bar, fBus, fDevice, fFunction);
+
+		if (sz == 4)
+			return HAL::rt_in32((UShort)PciConfigKind::ConfigData + (bar & 3));
+		if (sz == 2)
+			return HAL::rt_in16((UShort)PciConfigKind::ConfigData + (bar & 3));
+		if (sz == 1)
+			return HAL::rt_in8((UShort)PciConfigKind::ConfigData + (bar & 3));
+
+		return 0xFFFF;
+	}
+
+	void Device::Write(UInt bar, UIntPtr data, Size sz)
+	{
+		ZKA_PCISetCfgTarget(bar, fBus, fDevice, fFunction);
+
+		if (sz == 4)
+			HAL::rt_out32((UShort)PciConfigKind::ConfigData + (fBar & 3), (UInt)data);
+		if (sz == 2)
+			HAL::rt_out16((UShort)PciConfigKind::ConfigData + (fBar & 3), (UShort)data);
+		if (sz == 1)
+			HAL::rt_out8((UShort)PciConfigKind::ConfigData + (fBar & 3), (UChar)data);
+	}
+
+	UShort Device::DeviceId()
+	{
+		return (UShort)(ZKA_PCIReadRaw(0x0 >> 16, fBus, fDevice, fFunction));
+	}
+
+	UShort Device::VendorId()
+	{
+		return (UShort)(ZKA_PCIReadRaw(0x0, fBus, fDevice, fFunction) >> 16);
+	}
+
+	UShort Device::InterfaceId()
+	{
+		return (UShort)(ZKA_PCIReadRaw(0x0, fBus, fDevice, fFunction) >> 16);
+	}
+
+	UChar Device::Class()
+	{
+		return (UChar)(ZKA_PCIReadRaw(0x08, fBus, fDevice, fFunction) >> 24);
+	}
+
+	UChar Device::Subclass()
+	{
+		return (UChar)(ZKA_PCIReadRaw(0x08, fBus, fDevice, fFunction) >> 16);
+	}
+
+	UChar Device::ProgIf()
+	{
+		return (UChar)(ZKA_PCIReadRaw(0x08, fBus, fDevice, fFunction) >> 8);
+	}
+
+	UChar Device::HeaderType()
+	{
+		return (UChar)(ZKA_PCIReadRaw(0xC, fBus, fDevice, fFunction) >> 16);
+	}
+
+	void Device::EnableMmio(UInt32 bar_in)
+	{
+		bool enable = Read(bar_in, sizeof(UChar)) | (1 << 1);
+		Write(bar_in, enable, sizeof(UShort));
+	}
+
+	void Device::BecomeBusMaster(UInt32 bar_in)
+	{
+		bool enable = Read(bar_in, sizeof(UShort)) | (1 << 2);
+		Write(bar_in, enable, sizeof(UShort));
+	}
+
+	UIntPtr Device::Bar(UInt32 bar_in)
+	{
+		UInt32 bar = ZKA_PCIReadRaw(bar_in, fBus, fDevice, fFunction);
+		return bar;
+	}
+
+	UShort Device::Vendor()
+	{
+		UShort vendor = VendorId();
+
+		if (vendor != (UShort)PciConfigKind::Invalid)
+			fDevice = (UShort)Read(0x0, sizeof(UShort));
+
+		return fDevice;
+	}
+
+	Device::operator bool()
+	{
+		return VendorId() != (UShort)PciConfigKind::Invalid;
+	}
+} // namespace Kernel::PCI
diff --git a/dev/Kernel/HALKit/AMD64/PCI/Express.cc b/dev/Kernel/HALKit/AMD64/PCI/Express.cc
new file mode 100644
index 00000000..f24c5536
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/Express.cc
@@ -0,0 +1,11 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/Express.h>
+
+namespace Kernel
+{
+}
diff --git a/dev/Kernel/HALKit/AMD64/PCI/IO.cc b/dev/Kernel/HALKit/AMD64/PCI/IO.cc
new file mode 100644
index 00000000..da81d38b
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/IO.cc
@@ -0,0 +1,7 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/IO.h>
diff --git a/dev/Kernel/HALKit/AMD64/PCI/Iterator.cc b/dev/Kernel/HALKit/AMD64/PCI/Iterator.cc
new file mode 100644
index 00000000..d87482ab
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/Iterator.cc
@@ -0,0 +1,41 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/Iterator.h>
+
+namespace Kernel::PCI
+{
+	Iterator::Iterator(const Types::PciDeviceKind& type)
+	{
+		// probe devices.
+		for (int bus = 0; bus < ZKA_BUS_COUNT; ++bus)
+		{
+			for (int device = 0; device < ZKA_DEVICE_COUNT; ++device)
+			{
+				for (int function = 0; function < ZKA_FUNCTION_COUNT; ++function)
+				{
+					auto bar = 0x00;
+
+					Device dev(bus, device, function, bar);
+
+					if (dev.Class() == (UChar)type)
+					{
+						fDevices[bus] = dev;
+					}
+				}
+			}
+		}
+	}
+
+	Iterator::~Iterator()
+	{
+	}
+
+	Ref<PCI::Device> Iterator::operator[](const Size& at)
+	{
+		return fDevices[at];
+	}
+} // namespace Kernel::PCI
diff --git a/dev/Kernel/HALKit/AMD64/PCI/PCI.cc b/dev/Kernel/HALKit/AMD64/PCI/PCI.cc
new file mode 100644
index 00000000..47a56e53
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/PCI.cc
@@ -0,0 +1,7 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/PCI.h>