Move AHCI driver into separate drivers/ directory

src/drivers/ahci/ata.h

@@ -0,0 +1,67 @@
+#pragma once
+/// \file ata.h
+/// Definitions for ATA codes
+#include <stdint.h>
+#include "kutil/enum_bitfields.h"
+
+namespace ahci {
+
+
+enum class ata_status : uint8_t
+{
+	error		= 0x01,
+	index		= 0x02,
+	corrected	= 0x04,
+	data_ready	= 0x08,
+	seek_done	= 0x10,
+	fault		= 0x20,
+	ready		= 0x40,
+	busy		= 0x80
+};
+
+
+enum class ata_error : uint8_t
+{
+	amnf	= 0x01, // Address mark not found
+	tkznf	= 0x02, // Track 0 not found
+	abort	= 0x04, // Command abort
+	mcr		= 0x08, // No media
+	idnf	= 0x10, // Id not found
+	mc		= 0x20, // No media
+	unc		= 0x40, // Uncorrectable
+	bbk		= 0x80, // Bad sector
+};
+
+
+enum class ata_cmd : uint8_t
+{
+	read_pio		= 0x20,
+	read_pio_ext	= 0x24,
+	read_dma		= 0xC8,
+	read_dma_ext	= 0x25,
+	write_pio		= 0x30,
+	write_pio_ext	= 0x34,
+	write_dma		= 0xCA,
+	write_dma_ext	= 0x35,
+	cache_flush		= 0xE7,
+	cache_flush_ext	= 0xEA,
+	packet			= 0xA0,
+	identify_packet	= 0xA1,
+	identify		= 0xEC
+};
+
+
+enum class sata_signature : uint32_t
+{
+	none			= 0x00000000,
+
+	sata_drive		= 0x00000101,
+	satapi_drive	= 0xeb140101,
+	enclosure		= 0xc33c0101,
+	port_muxer		= 0x96690101
+};
+
+} // namespace ahci
+
+IS_BITFIELD(ahci::ata_status);
+IS_BITFIELD(ahci::ata_error);