uhciconstants.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 108 行

/*
 * $Id: UHCIConstants.java,v 1.1 2003/11/25 11:42:17 epr Exp $
 */
package org.jnode.driver.usb.uhci;

/**
 * @author Ewout Prangsma ([e-mail])
 */
public interface UHCIConstants {
	/*
	 * Universal Host Controller Interface data structures and defines
	 */

	/* Command register */
	public static final int USBCMD = 0;
	public static final int USBCMD_RS = 0x0001; /* Run/Stop */
	public static final int USBCMD_HCRESET = 0x0002; /* Host reset */
	public static final int USBCMD_GRESET = 0x0004; /* Global reset */
	public static final int USBCMD_EGSM = 0x0008; /* Global Suspend Mode */
	public static final int USBCMD_FGR = 0x0010; /* Force Global Resume */
	public static final int USBCMD_SWDBG = 0x0020; /* SW Debug mode */
	public static final int USBCMD_CF = 0x0040; /* Config Flag (sw only) */
	public static final int USBCMD_MAXP = 0x0080;
	/*
	 * Max Packet (0 = 32, 1 = 64)
	 */

	/* Status register */
	public static final int USBSTS = 2;
	public static final int USBSTS_USBINT = 0x0001; /* Interrupt due to IOC */
	public static final int USBSTS_ERROR = 0x0002; /* Interrupt due to error */
	public static final int USBSTS_RD = 0x0004; /* Resume Detect */
	public static final int USBSTS_HSE = 0x0008;
	/*
	 * Host System Error - basically PCI problems
	 */
	public static final int USBSTS_HCPE = 0x0010;
	/*
	 * Host Controller Process Error - the scripts were buggy
	 */
	public static final int USBSTS_HCH = 0x0020; /* HC Halted */

	/* Interrupt enable register */
	public static final int USBINTR = 4;
	public static final int USBINTR_TIMEOUT = 0x0001;
	/*
	 * Timeout/CRC error enable
	 */
	public static final int USBINTR_RESUME = 0x0002; /* Resume interrupt enable */
	public static final int USBINTR_IOC = 0x0004;
	/*
	 * Interrupt On Complete enable
	 */
	public static final int USBINTR_SP = 0x0008;
	/*
	 * Short packet interrupt enable
	 */

	public static final int USBFRNUM = 6;
	public static final int USBFLBASEADD = 8;
	public static final int USBSOF = 12;

	/* USB port status and control registers */
	public static final int USBPORTSC1 = 16;
	public static final int USBPORTSC2 = 18;
	/*
	 * Current Connect Status ("device present")
	 */
	public static final int USBPORTSC_CCS = 0x0001; /* Current connect status */
	public static final int USBPORTSC_CSC = 0x0002; /* Connect Status Change */
	public static final int USBPORTSC_PE = 0x0004; /* Port Enable */
	public static final int USBPORTSC_PEC = 0x0008; /* Port Enable Change */
	public static final int USBPORTSC_LS = 0x0030; /* Line Status */
	public static final int USBPORTSC_RD = 0x0040; /* Resume Detect */
	public static final int USBPORTSC_LSDA = 0x0100;
	/*
	 * Low Speed Device Attached
	 */
	public static final int USBPORTSC_PR = 0x0200; /* Port Reset */
	public static final int USBPORTSC_SUSP = 0x1000; /* Suspend */

	/*
	 * Legacy support PCI registers
	 */
	public static final int USBLEGSUP = 0xC0;
	public static final int USBLEGSUP_DEFAULT = 0x2000; /* only PIRQ enable set */

	/*
	 * for TD-status
	 */
	public static final int TD_CTRL_SPD = (1 << 29); /* Short Packet Detect */
	public static final int TD_CTRL_C_ERR_MASK = (3 << 27); /* Error Counter bits */
	public static final int TD_CTRL_C_ERR_SHIFT = 27;
	public static final int TD_CTRL_LS = (1 << 26); /* Low Speed Device */
	public static final int TD_CTRL_IOS = (1 << 25); /* Isochronous Select */
	public static final int TD_CTRL_IOC = (1 << 24); /* Interrupt on Complete */
	public static final int TD_CTRL_ACTIVE = (1 << 23); /* TD Active */
	public static final int TD_CTRL_STALLED = (1 << 22); /* TD Stalled */
	public static final int TD_CTRL_DBUFERR = (1 << 21); /* Data Buffer Error */
	public static final int TD_CTRL_BABBLE = (1 << 20); /* Babble Detected */
	public static final int TD_CTRL_NAK = (1 << 19); /* NAK Received */
	public static final int TD_CTRL_CRCTIMEO = (1 << 18); /* CRC/Time Out Error */
	public static final int TD_CTRL_BITSTUFF = (1 << 17); /* Bit Stuff Error */
	public static final int TD_CTRL_ACTLEN_MASK = 0x7FF; /* actual length, encoded as n - 1 */

	public static final int TD_CTRL_ANY_ERROR = (TD_CTRL_STALLED | TD_CTRL_DBUFERR | TD_CTRL_BABBLE | TD_CTRL_CRCTIMEO | TD_CTRL_BITSTUFF);
}