/*
 * 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 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_DADA_IMPL_UDCD_H
#define _SYS_DADA_IMPL_UDCD_H

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

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * definition for user dcd command  structure
 */

struct udcd_cmd {
        uchar_t udcd_error_reg; /* The error register value */
        uchar_t udcd_status_reg; /* The status register */
        ushort_t        udcd_status;    /* The resulting status */
        ushort_t        udcd_timeout;   /* Timeout value for completion */
        int     udcd_flags;     /* Flags for specifying  read,write etc. */
        uint_t  udcd_resid;     /* This is the resid */
        uint_t  udcd_buflen;    /* Size of the io request */
        caddr_t udcd_bufaddr;   /* Place to take the data or put the data in */
        struct  dcd_cmd *udcd_cmd; /* Command to be sent out */
        caddr_t udcd_reserved;  /* reserved for future use */
        uint_t  version_no;     /* Version number for this struct */
};

#if defined(_SYSCALL32)
struct udcd_cmd32 {
        uchar_t   udcd_error_reg;       /* The error register value */
        uchar_t   udcd_status_reg; /* The status register */
        ushort_t  udcd_status;  /* The resulting status */
        ushort_t  udcd_timeout; /* Timeout value for completion */
        int       udcd_flags;   /* Flags for specifying  read,write etc. */
        uint_t    udcd_resid;   /* This is the resid */
        uint_t    udcd_buflen;  /* Size of the io request */
        caddr32_t udcd_bufaddr; /* Place to take the data or put the data in */
        caddr32_t udcd_cmd; /* Command to be sent out */
        caddr32_t udcd_reserved;        /* reserved for future use */
        uint_t    version_no;   /* Version number for this struct */
};

#define udcd_cmd32toudcd_cmd(u32, ucmd)                                 \
        ucmd->udcd_error_reg    = u32->udcd_error_reg;                  \
        ucmd->udcd_status_reg   = u32->udcd_status_reg;                 \
        ucmd->udcd_status       = u32->udcd_status;                     \
        ucmd->udcd_timeout      = u32->udcd_timeout;                    \
        ucmd->udcd_flags        = u32->udcd_flags;                      \
        ucmd->udcd_resid        = u32->udcd_resid;                      \
        ucmd->udcd_buflen       = u32->udcd_buflen;                     \
        ucmd->udcd_bufaddr      = (caddr_t)(uintptr_t)u32->udcd_bufaddr; \
        ucmd->udcd_cmd          = (struct  dcd_cmd *)(uintptr_t)u32->udcd_cmd; \
        ucmd->udcd_reserved     = (caddr_t)(uintptr_t)u32->udcd_reserved; \
        ucmd->version_no        = u32->version_no;

#define udcd_cmdtoudcd_cmd32(ucmd, u32)                                 \
        u32->udcd_error_reg     = ucmd->udcd_error_reg;                 \
        u32->udcd_status_reg    = ucmd->udcd_status_reg;                \
        u32->udcd_status        = ucmd->udcd_status;                    \
        u32->udcd_timeout       = ucmd->udcd_timeout;                   \
        u32->udcd_flags         = ucmd->udcd_flags;                     \
        u32->udcd_resid         = ucmd->udcd_resid;                     \
        u32->udcd_buflen        = ucmd->udcd_buflen;                    \
        u32->udcd_bufaddr       = (caddr32_t)(uintptr_t)ucmd->udcd_bufaddr; \
        u32->udcd_cmd           = (caddr32_t)(uintptr_t)ucmd->udcd_cmd; \
        u32->udcd_reserved      = (caddr32_t)(uintptr_t)ucmd->udcd_reserved; \
        u32->version_no         = ucmd->version_no;

#endif /* _SYSCALL32 */


/*
 * Flags for the Udcd_flags field
 */
#define UDCD_WRITE      0x00000 /* Send data to device */
#define UDCD_SILENT     0x00001 /* no error messages */
#define UDCD_DIAGNOSE   0x00002 /* Fail of any error occurs */
#define UDCD_ISOLATE    0x00004 /* isolate from normal command */
#define UDCD_READ       0x00008 /* Read data from device */
#define UDCD_NOINTR     0x00040 /*  No interrupts */
#define UDCD_RESET      0x04000 /* Reset the target */


/*
 * User ATA io control command
 */
#define UDCDIOC (0x05 << 8)
#define UDCDCMD (UDCDIOC|201) /* User dcd command */

#ifdef  __cplusplus
}
#endif

#endif /* _SYS_DADA_IMPL_UDCD_H */