Class Port

Kernel/include/ahci.h:349–380

	};

	class Port : public DiskDevice{
	public:
		Port(int num, hba_port_t* portStructure, hba_mem_t* hbaMem);

		int ReadDiskBlock(uint64_t lba, uint32_t count, void* buffer);
		int WriteDiskBlock(uint64_t lba, uint32_t count, void* buffer);

        int blocksize = 512;
		AHCIStatus status = AHCIStatus::Uninitialized;
	private:
		unsigned AcquireBuffer();
		void ReleaseBuffer(unsigned index);

		int FindCmdSlot();
		int Access(uint64_t lba, uint32_t count, uintptr_t physBuffer, int write);
		void Identify();

		hba_port_t* registers;

		hba_cmd_header_t* commandList; // Address Mapping of the Command List
		hba_fis_t* fis; // Address Mapping of the FIS

		hba_cmd_tbl_t* commandTables[8];

		uint64_t physBuffers[8];
		void* buffers[8];
		lock_t bufferLocks[8];

		Semaphore bufferSemaphore = Semaphore(8);
		//Semaphore portLock = Semaphore(1); // Binary semaphore for the AHCI port
		lock_t portLock = 0;
	};

	int Init();