SCSICmds_MODE_Definitions.h   [plain text]

/*
 * Copyright (c) 1998-2001 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

// This file contains all definitions for the data returned from
// the MODE_SENSE_6 and MODE_SENSE_10 commands.

#ifndef _IOKIT_SCSI_CMDS_MODE_DEFINITIONS_H_
#define _IOKIT_SCSI_CMDS_MODE_DEFINITIONS_H_

#if KERNEL
#include <IOKit/IOTypes.h>
#else
#include <CoreFoundation/CoreFoundation.h>
#endif

#pragma pack(1)

struct SPCModeParameterHeader6
{
	UInt8		MODE_DATA_LENGTH;
	UInt8		MEDIUM_TYPE;
	UInt8		DEVICE_SPECIFIC_PARAMETER;
	UInt8		BLOCK_DESCRIPTOR_LENGTH;
};
typedef struct SPCModeParameterHeader6 SPCModeParameterHeader6;

struct SPCModeParameterHeader10
{
	UInt16		MODE_DATA_LENGTH;
	UInt8		MEDIUM_TYPE;
	UInt8		DEVICE_SPECIFIC_PARAMETER;
	UInt8		LONGLBA;
	UInt8		RESERVED;
	UInt16		BLOCK_DESCRIPTOR_LENGTH;
};
typedef struct SPCModeParameterHeader10 SPCModeParameterHeader10;

enum
{
	kModeSenseParameterHeader10_LongLBABit	=  0,
	kModeSenseParameterHeader10_LongLBAMask	=  (1 << kModeSenseParameterHeader10_LongLBABit),
};

// General mode parameter block descriptor
struct ModeParameterBlockDescriptor
{
	UInt8		DENSITY_CODE;
	UInt8		NUMBER_OF_BLOCKS[3];
	UInt8		RESERVED;
	UInt8		BLOCK_LENGTH[3];
};
typedef struct ModeParameterBlockDescriptor ModeParameterBlockDescriptor;

// Direct Access Storage Device mode parameter block descriptor
struct DASDModeParameterBlockDescriptor
{
	UInt32		NUMBER_OF_BLOCKS;
	UInt8		DENSITY_CODE;
	UInt8		BLOCK_LENGTH[3];
};
typedef struct DASDModeParameterBlockDescriptor DASDModeParameterBlockDescriptor;

// Long LBA mode parameter block descriptor
struct LongLBAModeParameterBlockDescriptor
{
	UInt64		NUMBER_OF_BLOCKS;
	UInt8		DENSITY_CODE;
	UInt8		RESERVED[3];
	UInt32		BLOCK_LENGTH;
};
typedef struct LongLBAModeParameterBlockDescriptor LongLBAModeParameterBlockDescriptor;


// Mode Page format header
struct ModePageFormatHeader
{
	UInt8		PS_PAGE_CODE;
	UInt8		PAGE_LENGTH;
};
typedef struct ModePageFormatHeader ModePageFormatHeader;

enum
{
	kModePageFormat_PS_Bit			= 7,
	
	kModePageFormat_PAGE_CODE_Mask	= 0x3F,
	kModePageFormat_PS_Mask			= (1 << kModePageFormat_PS_Bit)
};


#if 0
#pragma mark -
#pragma mark SPC Mode Pages
#pragma mark -
#endif

enum
{
	kSPCModePagePowerConditionCode		= 0x1A
};

// SPC PAGE_CODE 0x1A
struct SPCModePagePowerCondition
{
	ModePageFormatHeader	header;
	UInt8					RESERVED;
	UInt8					IDLE_STANDBY;
	UInt32					IDLE_CONDITION_TIMER;
	UInt32					STANDBY_CONDITION_TIMER;
};
typedef struct SPCModePagePowerCondition SPCModePagePowerCondition;


#if 0
#pragma mark -
#pragma mark 0x00 SBC Direct Access Mode Pages
#pragma mark -
#endif

enum
{
	kSBCModePageFormatDeviceCode		= 0x03,
	kSBCModePageRigidDiskGeometryCode	= 0x04,
	kSBCModePageFlexibleDiskCode		= 0x05,
	kSBCModePageCachingCode				= 0x08
};

// SBC PAGE_CODE 0x03
struct SBCModePageFormatDevice
{
	ModePageFormatHeader	header;
	UInt16					TRACKS_PER_ZONE;
	UInt16					ALTERNATE_SECTORS_PER_ZONE;
	UInt16					ALTERNATE_TRACKS_PER_ZONE;
	UInt16					ALTERNATE_TRACKS_PER_LOGICAL_UNIT;
	UInt16					SECTORS_PER_TRACK;
	UInt16					DATA_BYTES_PER_PHYSICAL_SECTOR;
	UInt16					INTERLEAVE;
	UInt16					TRACK_SKEW_FACTOR;
	UInt16					CYLINDER_SKEW_FACTOR;
	UInt8					SSEC_HSEC_RMB_SURF;
	UInt8					RESERVED[3];
};
typedef struct SBCModePageFormatDevice SBCModePageFormatDevice;

// SBC PAGE_CODE 0x04
struct SBCModePageRigidDiskGeometry
{
	ModePageFormatHeader	header;
	UInt8					NUMBER_OF_CYLINDERS[3];
	UInt8					NUMBER_OF_HEADS;
	UInt8					STARTING_CYLINDER_WRITE_PRECOMPENSATION[3];
	UInt8					STARTING_CYLINDER_REDUCED_WRITE_CURRENT[3];
	UInt16					DEVICE_STEP_RATE;
	UInt8					LANDING_ZONE_CYLINDER[3];
	UInt8					RPL;
	UInt8					ROTATIONAL_OFFSET;
	UInt8					RESERVED;
	UInt16					MEDIUM_ROTATION_RATE;
	UInt8					RESERVED1[2];
};
typedef struct SBCModePageRigidDiskGeometry SBCModePageRigidDiskGeometry;

enum
{
	kSBCModePageRigidDiskGeometry_RPL_Mask	= 0x03
};

// SBC PAGE_CODE 0x05
struct SBCModePageFlexibleDisk
{
	ModePageFormatHeader	header;
	UInt16					TRANSFER_RATE;
	UInt8					NUMBER_OF_HEADS;
	UInt8					SECTORS_PER_TRACK;
	UInt16					DATA_BYTES_PER_SECTOR;
	UInt16					NUMBER_OF_CYLINDERS;
	UInt16					STARTING_CYLINDER_WRITE_PRECOMPENSATION;
	UInt16					STARTING_CYLINDER_REDUCED_WRITE_CURRENT;
	UInt16					DEVICE_STEP_RATE;
	UInt8					DEVICE_STEP_PULSE_WIDTH;
	UInt16					HEAD_SETTLE_DELAY;
	UInt8					MOTOR_ON_DELAY;
	UInt8					MOTOR_OFF_DELAY;
	UInt8					TRDY_SSN_MO;
	UInt8					SPC;
	UInt8					WRITE_COMPENSATION;
	UInt8					HEAD_LOAD_DELAY;
	UInt8					HEAD_UNLOAD_DELAY;
	UInt8					PIN_34_PIN_2;
	UInt8					PIN_4_PIN_1;
	UInt16					MEDIUM_ROTATION_RATE;
	UInt8					RESERVED[2];
};
typedef struct SBCModePageFlexibleDisk SBCModePageFlexibleDisk;

// Byte 21
enum
{
	// Bits 0:4 Reserved
	kSBCModePageFlexibleDisk_MO_Bit		= 5,
	kSBCModePageFlexibleDisk_SSN_Bit	= 6,
	kSBCModePageFlexibleDisk_TRDY_Bit	= 7
};

enum
{
	kSBCModePageFlexibleDisk_MO_Mask	= (1 << kSBCModePageFlexibleDisk_MO_Bit),
	kSBCModePageFlexibleDisk_SSN_Mask	= (1 << kSBCModePageFlexibleDisk_SSN_Bit),
	kSBCModePageFlexibleDisk_TRDY_Mask	= (1 << kSBCModePageFlexibleDisk_TRDY_Bit)
};

// Byte 22
enum
{
	kSBCModePageFlexibleDisk_SPC_Mask	= 0x0F
};

// Byte 26
enum
{
	kSBCModePageFlexibleDisk_PIN_2_Mask		= 0x0F,
	kSBCModePageFlexibleDisk_PIN_34_Mask	= 0xF0
};

// Byte 27
enum
{
	kSBCModePageFlexibleDisk_PIN_1_Mask		= 0x0F,
	kSBCModePageFlexibleDisk_PIN_4_Mask		= 0xF0
};


// SBC PAGE_CODE 0x08
struct SBCModePageCaching
{
	ModePageFormatHeader	header;
	UInt8					flags;
	UInt8					DEMAND_READ_WRITE_RETENTION_PRIORITY;
	UInt16					DISABLE_PREFETCH_TRANSFER_LENGTH;
	UInt16					MINIMUM_PREFETCH;
	UInt16					MAXIMUM_PREFETCH;
	UInt16					MAXIMUM_PREFETCH_CEILING;
	UInt8					flags2;
	UInt8					NUMBER_OF_CACHE_SEGMENTS;
	UInt16					CACHE_SEGMENT_SIZE;
	UInt8					RESERVED;
	UInt8					NON_CACHE_SEGMENT_SIZE[3];
};
typedef struct SBCModePageCaching SBCModePageCaching;

// flags field bits
enum
{
	kSBCModePageCaching_RCD_Bit		= 0,
	kSBCModePageCaching_MF_Bit		= 1,
	kSBCModePageCaching_WCE_Bit		= 2,
	kSBCModePageCaching_SIZE_Bit	= 3,
	kSBCModePageCaching_DISC_Bit	= 4,
	kSBCModePageCaching_CAP_Bit		= 5,
	kSBCModePageCaching_ABPF_Bit	= 6,
	kSBCModePageCaching_IC_Bit		= 7
};

enum
{
	kSBCModePageCaching_RCD_Mask	= (1 << kSBCModePageCaching_RCD_Bit),
	kSBCModePageCaching_MF_Mask		= (1 << kSBCModePageCaching_MF_Bit),
	kSBCModePageCaching_WCE_Mask	= (1 << kSBCModePageCaching_WCE_Bit),
	kSBCModePageCaching_SIZE_Mask	= (1 << kSBCModePageCaching_SIZE_Bit),
	kSBCModePageCaching_DISC_Mask	= (1 << kSBCModePageCaching_DISC_Bit),
	kSBCModePageCaching_CAP_Mask	= (1 << kSBCModePageCaching_CAP_Bit),
	kSBCModePageCaching_ABPF_Mask	= (1 << kSBCModePageCaching_ABPF_Bit),
	kSBCModePageCaching_IC_Mask		= (1 << kSBCModePageCaching_IC_Bit)
};

// Demand Read/Write Retention masks
enum
{
	kSBCModePageCaching_DEMAND_WRITE_Mask	= 0x00FF,
	kSBCModePageCaching_DEMAND_READ_Mask 	= 0xFF00
};

// flags2 field bits
enum
{
	// Bits 0:2 Reserved
	kSBCModePageCaching_VS1_Bit		= 3,
	kSBCModePageCaching_VS2_Bit		= 4,
	kSBCModePageCaching_DRA_Bit		= 5,
	kSBCModePageCaching_LBCSS_Bit	= 6,
	kSBCModePageCaching_FSW_Bit		= 7
};

enum
{
	kSBCModePageCaching_VS1_Mask	= (1 << kSBCModePageCaching_VS1_Bit),
	kSBCModePageCaching_VS2_Mask	= (1 << kSBCModePageCaching_VS2_Bit),
	kSBCModePageCaching_DRA_Mask	= (1 << kSBCModePageCaching_DRA_Bit),
	kSBCModePageCaching_LBCSS_Mask	= (1 << kSBCModePageCaching_LBCSS_Bit),
	kSBCModePageCaching_FSW_Mask	= (1 << kSBCModePageCaching_FSW_Bit)
};

#pragma options align=reset

#endif	/* _IOKIT_SCSI_CMDS_MODE_DEFINITIONS_H_ */