/*
 * 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 (c) 1992-1995,1997-2000 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#ifndef _SYS_ECPPIO_H
#define _SYS_ECPPIO_H

#ifdef  __cplusplus
extern "C" {
#endif

#include <sys/bpp_io.h>
#include <sys/ecppsys.h>
#include <sys/note.h>

#define ECPPIOC_SETREGS         _IOW('p', 73, struct ecpp_regs)
#define ECPPIOC_GETREGS         _IOR('p', 74, struct ecpp_regs)
#define ECPPIOC_SETPORT         _IOW('p', 77, uchar_t)
#define ECPPIOC_GETPORT         _IOR('p', 78, uchar_t)
#define ECPPIOC_SETDATA         _IOW('p', 79, uchar_t)
#define ECPPIOC_GETDATA         _IOR('p', 80, uchar_t)

#define ECPP_MAX_TIMEOUT        604800  /* one week */
#define ECPP_W_TIMEOUT_DEFAULT  60      /* 60 seconds */

struct ecpp_regs {
        uint8_t dsr;    /* status reg */
        uint8_t dcr;    /* control reg */
};

_NOTE(SCHEME_PROTECTS_DATA("unique per call", ecpp_regs))

/* Values for dsr field */
#define ECPP_EPP_TMOUT          0x01
#define ECPP_DSR_reserved1      0x02
#define ECPP_IRQ_ST             0x04
#define ECPP_nERR               0x08
#define ECPP_SLCT               0x10
#define ECPP_PE                 0x20
#define ECPP_nACK               0x40
#define ECPP_nBUSY              0x80

/*  Values for the dcr field */
#define ECPP_STB                0x01
#define ECPP_AFX                0x02
#define ECPP_nINIT              0x04
#define ECPP_SLCTIN             0x08
#define ECPP_INTR_EN            0x10    /* 1=enable */
#define ECPP_REV_DIR            0x20    /* 1=reverse dir */
#define ECPP_DCR_reserved6      0x40
#define ECPP_DCR_reserved7      0x80
#define ECPP_DCR_SET            (ECPP_DCR_reserved6 | ECPP_DCR_reserved7)

/* port types */
#define ECPP_PORT_DMA           0x1     /* default */
#define ECPP_PORT_PIO           0x2
#define ECPP_PORT_TDMA          0x3     /* test fifo */

/* these bits are not modified by ECPPIOC_SETREGS/GETREGS */
#define ECPP_SETREGS_DSR_MASK   \
                        (ECPP_EPP_TMOUT | ECPP_DSR_reserved1 | ECPP_IRQ_ST)
#define ECPP_SETREGS_DCR_MASK   \
                        (ECPP_INTR_EN | ECPP_REV_DIR | ECPP_DCR_SET)

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_ECPPIO_H */