/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1996-2002 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_DCD_CONF_AUTOCONF_H
#define _SYS_DCD_CONF_AUTOCONF_H

#pragma ident   "%Z%%M% %I%     %E% SMI"

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * Following are for debugging purposes (few Sun drivers support this)
 */
#define DCD_DEBUG_TGT   0x1     /* debug statements in target drivers */
#define DCD_DEBUG_LIB   0x2     /* debug statements in library */
#define DCD_DEBUG_HA    0x4     /* debug statements in host adapters */

/*
 * DCD autoconfiguration definitions.
 *
 * The library routine dcd_probe() is provided as a service to target
 * driver to check for bare-bones existence of a dcd device. It is
 * defined as:
 *
 *      int dcd_probe(struct scsi_device *devp, int (*callback()))
 *
 * dcd_probe() only executes an inquiry.
 *
 * Both functions return one of the integer values as defined below:
 */

#define DCDPROBE_EXISTS         0       /* device exists, inquiry data valid */
#define DCDPROBE_NONCCS         1       /* device exists, no inquiry data */
#define DCDPROBE_NORESP         2       /* device didn't respond */
#define DCDPROBE_NOMEM          3       /* no space available for structures */
#define DCDPROBE_FAILURE        4       /* polled cmnd failure- unspecified */
#define DCDPROBE_BUSY           5       /* device was busy */
#define DCDPROBE_NOMEM_CB       6
                                        /*
                                         * no space available for structures
                                         * but callback request has been
                                         * queued
                                         */
/*
 * The following are the defines for the dcd_options. The dcd_options
 * is a 32 bit quantity which is split in the following way to make it easier
 * for the current HBA driver to program it easily.
 * The following is the layout of the dcd_options bit.
 *
 * Bit 0, 1, 2, 3, 4 - Indicate the mode that is requested.
 * Bit 5 represent the support for Ultra ATA.
 * Bit 6 represent the support for Block Mode.
 * Bit 7 will indicate PIO or DMA (set means DMA).
 */


/* The following are the defines for the PIO Modes. */
#define DCD_PIO_MODE0           0
#define DCD_PIO_MODE1           1
#define DCD_PIO_MODE2           2
#define DCD_PIO_MODE3           3
#define DCD_PIO_MODE4           4

/* The following are the defines for the DMA modes */
#define DCD_MULT_DMA_MODE0      0
#define DCD_MULT_DMA_MODE1      1
#define DCD_MULT_DMA_MODE2      2
#define DCD_MULT_DMA_MODE3      3
#define DCD_MULT_DMA_MODE4      4
#define DCD_MULT_DMA_MODE5      5

/* The following ate the generic defines for the dcd_options */
#define DCD_BLOCK_MODE          0x40
#define DCD_ULTRA_ATA           0x20
#define DCD_DMA_MODE            0x80

#define DEFAULT_DCD_OPTIONS     0xA5
#define DCD_CHECK_ULTRA         0xA0
#define DCD_CHECK_DMA           0x80
#define DCD_CHECK_PIO           0x00
#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_DCD_CONF_AUTOCONF_H */