ideconstants.java

来自「纯java操作系统jnode,安装简单和操作简单的个人使用的Java操作系统」· Java 代码 · 共 199 行

/*
 * $Id: IDEConstants.java,v 1.1 2003/11/25 11:50:42 epr Exp $
 */
package org.jnode.driver.ide;

/**
 * @author epr
 */
public interface IDEConstants {

	/** First port number of first IDE Task file */
	public static final int IDE0_START_PORT = 0x1f0;
	
	/** First port number of second IDE Task file */
	public static final int IDE1_START_PORT = 0x170;

	/** Data register offset in Task file */
	public static final int RW16_DATA_OFFSET = 0;
	
	/** Error register offset in Task file */
	public static final int R8_ERROR_OFFSET = 1;
	
	/** Feature register offset in Task file */
	public static final int W8_FEATURE_OFFSET = 1;
	
	/** #Sectors register offset in Task file */
	public static final int RW8_SECTOR_COUNT_OFFSET = 2;
	
	/** Sector register offset in Task file */
	public static final int RW8_SECTOR_OFFSET = 3;
	public static final int RW8_LBA_LOW_OFFSET = RW8_SECTOR_OFFSET;
	
	/** Cylinder LSB register offset in Task file */
	public static final int RW8_CYLINDER_LSB_OFFSET = 4;
	public static final int RW8_LBA_MID_OFFSET = RW8_CYLINDER_LSB_OFFSET;
	
	/** Cylinder MSB register offset in Task file */
	public static final int RW8_CYLINDER_MSB_OFFSET = 5;
	public static final int RW8_LBA_HIGH_OFFSET = RW8_CYLINDER_MSB_OFFSET;
	
	/** Drive/Head register offset in Task file */
	public static final int RW8_SELECT_OFFSET = 6;
	
	/** Status register offset in Task file */
	public static final int R8_STATUS_OFFSET = 7;
	
	/** Alternative status register offset in Task file */
	public static final int R8_ALTSTATUS_OFFSET = 0x206;
	
	/** Control register offset in Task file */
	public static final int W8_CONTROL_OFFSET = 0x206;
	
	/** Command register offset in Task file */
	public static final int W8_COMMAND_OFFSET = 7;
	
	public static final int HIGH_OFFSET = 0x206;
	public static final int IDE_NR_PORTS = 8;
	public static final int IDE_NR_HIGH_PORTS = 1;
	public static final int IDE_NR_TASKFILES = 2;
	public static final int IDE0_IRQ = 14;
	public static final int IDE1_IRQ = 15;
	public static final int SECTOR_SIZE = 512;
	
	// --------------------------------
	// Error bits
	
	/** NDM Address mark not found */
	public static final int ERR_NDM = 0x01;
	
	/** Track 0 not found */ 
	public static final int ERR_NT0 = 0x02;
	
	/** Abort */ 
	public static final int ERR_ABORT = 0x04;
	
	/** MCR */ 
	public static final int ERR_MCR = 0x08;
	
	/** ID mark not found */ 
	public static final int ERR_NID = 0x10;
	
	/** MC */ 
	public static final int ERR_MC  = 0x20;
	
	/** Unrecoverable error */ 
	public static final int ERR_UNC = 0x40;
	
	/** Bad block */ 
	public static final int ERR_BBK = 0x80; 
	
	// --------------------------------
	// Status bits
	public static final int ST_BUSY = 0x80;
	public static final int ST_DEVICE_READY = 0x40;
	public static final int ST_DEVICE_FAULT = 0x20;
	//public static final int ST_SKC = 0x10;
	public static final int ST_DATA_REQUEST = 0x08;
	public static final int ST_ERROR = 0x01;
	
	// --------------------------------
	// Drive/Head (SELECT) bits
	
	public static final int SEL_BLANK = 0xa0;
	public static final int SEL_HEAD_MASK = 0x0f;
	public static final int SEL_DRIVE_MASK = 0x10;
	public static final int SEL_DRIVE_SLAVE = 0x10;
	public static final int SEL_DRIVE_MASTER = 0x00;
	public static final int SEL_LBA = 0x40;
	
	// --------------------------------
	// Control bits
	
	/** Interrupt enable (0==enabled, 1==disabled) */ 
	public static final int CTR_IEN = 0x02;
	/** Software reset (1==reset, 0==reset finished) */
	public static final int CTR_SRST = 0x04;
	
	// --------------------------------
	// Timeout
	
	public static final int IDE_TIMEOUT = 1000; /* ms */	
	
	// --------------------------------
	// ATA/ATAPI Commands pre T13 Spec
	public static final int CMD_NOP				= 0x00;
	public static final int CFA_REQ_EXT_ERROR_CODE		= 0x03; /* CFA Request Extended Error Code */
	public static final int CMD_SRST			= 0x08; /* ATAPI soft reset command */
	public static final int CMD_DEVICE_RESET		= 0x08;
	public static final int CMD_RESTORE			= 0x10;
	public static final int CMD_READ			= 0x20; /* 28-Bit */
	public static final int CMD_READ_EXT			= 0x24; /* 48-Bit */
	public static final int CMD_READDMA_EXT			= 0x25; /* 48-Bit */
	public static final int CMD_READDMA_QUEUED_EXT		= 0x26; /* 48-Bit */
	public static final int CMD_READ_NATIVE_MAX_EXT		= 0x27; /* 48-Bit */
	public static final int CMD_MULTREAD_EXT		= 0x29; /* 48-Bit */
	public static final int CMD_WRITE			= 0x30; /* 28-Bit */
	public static final int CMD_WRITE_EXT			= 0x34; /* 48-Bit */
	public static final int CMD_WRITEDMA_EXT		= 0x35; /* 48-Bit */
	public static final int CMD_WRITEDMA_QUEUED_EXT		= 0x36; /* 48-Bit */
	public static final int CMD_SET_MAX_EXT			= 0x37; /* 48-Bit */
	public static final int CFA_WRITE_SECT_WO_ERASE		= 0x38; /* CFA Write Sectors without erase */
	public static final int CMD_MULTWRITE_EXT		= 0x39; /* 48-Bit */
	public static final int CMD_WRITE_VERIFY		= 0x3C; /* 28-Bit */
	public static final int CMD_VERIFY			= 0x40; /* 28-Bit - Read Verify Sectors */
	public static final int CMD_VERIFY_EXT			= 0x42; /* 48-Bit */
	public static final int CMD_FORMAT			= 0x50;
	public static final int CMD_INIT			= 0x60;
	public static final int CMD_SEEK			= 0x70;
	public static final int CFA_TRANSLATE_SECTOR		= 0x87; /* CFA Translate Sector */
	public static final int CMD_DIAGNOSE			= 0x90;
	public static final int CMD_SPECIFY			= 0x91; /* set drive geometry translation */
	public static final int CMD_DOWNLOAD_MICROCODE		= 0x92;
	public static final int CMD_STANDBYNOW2			= 0x94;
	public static final int CMD_SETIDLE2			= 0x97;
	public static final int CMD_CHECKPOWERMODE2		= 0x98;
	public static final int CMD_SLEEPNOW2			= 0x99;
	public static final int CMD_PACKETCMD			= 0xA0; /* Send a packet command. */
	public static final int CMD_PIDENTIFY			= 0xA1; /* identify ATAPI device	*/
	public static final int CMD_QUEUED_SERVICE		= 0xA2;
	public static final int CMD_SMART			= 0xB0; /* self-monitoring and reporting */
	public static final int CFA_ERASE_SECTORS       	= 0xC0;
	public static final int CMD_MULTREAD			= 0xC4; /* read sectors using multiple mode*/
	public static final int CMD_MULTWRITE			= 0xC5; /* write sectors using multiple mode */
	public static final int CMD_SETMULT			= 0xC6; /* enable/disable multiple mode */
	public static final int CMD_READDMA_QUEUED		= 0xC7; /* read sectors using Queued DMA transfers */
	public static final int CMD_READDMA			= 0xC8; /* read sectors using DMA transfers */
	public static final int CMD_WRITEDMA			= 0xCA; /* write sectors using DMA transfers */
	public static final int CMD_WRITEDMA_QUEUED		= 0xCC; /* write sectors using Queued DMA transfers */
	public static final int CFA_WRITE_MULTI_WO_ERASE	= 0xCD; /* CFA Write multiple without erase */
	public static final int CMD_GETMEDIASTATUS		= 0xDA;	
	public static final int CMD_DOORLOCK			= 0xDE; /* lock door on removable drives */
	public static final int CMD_DOORUNLOCK			= 0xDF; /* unlock door on removable drives */
	public static final int CMD_STANDBYNOW1			= 0xE0;
	public static final int CMD_IDLEIMMEDIATE		= 0xE1; /* force drive to become "ready" */
	public static final int CMD_STANDBY             	= 0xE2; /* Set device in Standby Mode */
	public static final int CMD_SETIDLE1			= 0xE3;
	public static final int CMD_READ_BUFFER			= 0xE4; /* force read only 1 sector */
	public static final int CMD_CHECKPOWERMODE1		= 0xE5;
	public static final int CMD_SLEEPNOW1			= 0xE6;
	public static final int CMD_FLUSH_CACHE			= 0xE7;
	public static final int CMD_WRITE_BUFFER		= 0xE8; /* force write only 1 sector */
	public static final int CMD_FLUSH_CACHE_EXT		= 0xEA; /* 48-Bit */
	public static final int CMD_IDENTIFY			= 0xEC; /* ask drive to identify itself	*/
	public static final int CMD_MEDIAEJECT			= 0xED;
	public static final int CMD_IDENTIFY_DMA		= 0xEE; /* same as WIN_IDENTIFY, but DMA */
	public static final int CMD_SETFEATURES			= 0xEF; /* set special drive features */
	public static final int EXABYTE_ENABLE_NEST		= 0xF0;
	public static final int CMD_SECURITY_SET_PASS		= 0xF1;
	public static final int CMD_SECURITY_UNLOCK		= 0xF2;
	public static final int CMD_SECURITY_ERASE_PREPARE	= 0xF3;
	public static final int CMD_SECURITY_ERASE_UNIT		= 0xF4;
	public static final int CMD_SECURITY_FREEZE_LOCK	= 0xF5;
	public static final int CMD_SECURITY_DISABLE		= 0xF6;
	public static final int CMD_READ_NATIVE_MAX		= 0xF8; /* return the native maximum address */
	public static final int CMD_SET_MAX			= 0xF9;
	public static final int DISABLE_SEAGATE			= 0xFB;

}