diff options
Diffstat (limited to 'dev/kernel/KernelKit/PCI/Device.h')
| -rw-r--r-- | dev/kernel/KernelKit/PCI/Device.h | 135 |
1 files changed, 65 insertions, 70 deletions
diff --git a/dev/kernel/KernelKit/PCI/Device.h b/dev/kernel/KernelKit/PCI/Device.h index 0c434b0b..d9bb4e70 100644 --- a/dev/kernel/KernelKit/PCI/Device.h +++ b/dev/kernel/KernelKit/PCI/Device.h @@ -1,78 +1,73 @@ /* ------------------------------------------- - Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved. + Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved. ------------------------------------------- */ #pragma once #include <NewKit/Defines.h> -namespace Kernel::PCI -{ - enum class PciConfigKind : UShort - { - ConfigAddress = 0xCF8, - ConfigData = 0xCFC, - CommandReg = 0x0004, - Invalid = 0xFFFF, - }; - - /// @brief Device interface class - class Device final - { - public: - Device() = default; - - public: - Device(UShort bus, UShort device, UShort function, UInt32 bar); - - Device& operator=(const Device&) = default; - Device(const Device&) = default; - - ~Device(); - - public: - UInt Read(UInt bar, Size szData); - void Write(UInt bar, UIntPtr data, Size szData); - - public: - operator bool(); - - public: - template <typename T> - UInt Read(UInt bar) - { - static_assert(sizeof(T) <= sizeof(UInt32), "64-bit PCI addressing is unsupported"); - return Read(bar, sizeof(T)); - } - - template <typename T> - void Write(UInt bar, UIntPtr data) - { - static_assert(sizeof(T) <= sizeof(UInt32), "64-bit PCI addressing is unsupported"); - Write(bar, data, sizeof(T)); - } - - public: - UShort DeviceId(); - UShort VendorId(); - UShort InterfaceId(); - UChar Class(); - UChar Subclass(); - UChar ProgIf(); - UChar HeaderType(); - UIntPtr Bar(UInt32 bar_in); - - public: - void EnableMmio(); - void BecomeBusMaster(); // for PCI-DMA, PC-DMA does not need that. - - UShort Vendor(); - - private: - UShort fBus; - UShort fDevice; - UShort fFunction; - UInt32 fBar; - }; -} // namespace Kernel::PCI +namespace Kernel::PCI { +enum class PciConfigKind : UShort { + ConfigAddress = 0xCF8, + ConfigData = 0xCFC, + CommandReg = 0x0004, + Invalid = 0xFFFF, +}; + +/// @brief Device interface class +class Device final { + public: + Device() = default; + + public: + Device(UShort bus, UShort device, UShort function, UInt32 bar); + + Device& operator=(const Device&) = default; + Device(const Device&) = default; + + ~Device(); + + public: + UInt Read(UInt bar, Size szData); + void Write(UInt bar, UIntPtr data, Size szData); + + public: + operator bool(); + + public: + template <typename T> + UInt Read(UInt bar) { + static_assert(sizeof(T) <= sizeof(UInt32), "64-bit PCI addressing is unsupported"); + return Read(bar, sizeof(T)); + } + + template <typename T> + void Write(UInt bar, UIntPtr data) { + static_assert(sizeof(T) <= sizeof(UInt32), "64-bit PCI addressing is unsupported"); + Write(bar, data, sizeof(T)); + } + + public: + UShort DeviceId(); + UShort VendorId(); + UShort InterfaceId(); + UChar Class(); + UChar Subclass(); + UChar ProgIf(); + UChar HeaderType(); + UIntPtr Bar(UInt32 bar_in); + + public: + void EnableMmio(); + void BecomeBusMaster(); // for PCI-DMA, PC-DMA does not need that. + + UShort Vendor(); + + private: + UShort fBus; + UShort fDevice; + UShort fFunction; + UInt32 fBar; +}; +} // namespace Kernel::PCI |
