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/*
* 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) 1990,1991,1997-1998 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _SYS_BPP_IO_H
#define _SYS_BPP_IO_H
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* I/O header file for the bidirectional parallel port
* driver (bpp) for the Zebra SBus card.
*/
#include <sys/ioccom.h>
#ifdef __cplusplus
extern "C" {
#endif
/* #defines (not struct elements) below */
/*
* Minor device number encoding (should not be here):
*/
#define BPP_UNIT(dev) getminor(*dev)
/*
* ioctl defines for cmd argument
*/
/* set contents of transfer parms structure */
#define BPPIOC_SETPARMS _IOW('b', 1, struct bpp_transfer_parms)
/* read contents of transfer parms structure */
#define BPPIOC_GETPARMS _IOR('b', 2, struct bpp_transfer_parms)
/* set contents of output pins structure */
#define BPPIOC_SETOUTPINS _IOW('b', 3, struct bpp_pins)
/* read contents of output pins structure */
#define BPPIOC_GETOUTPINS _IOR('b', 4, struct bpp_pins)
/* read contents of snapshot error status structure */
#define BPPIOC_GETERR _IOR('b', 5, struct bpp_error_status)
/* pretend to attempt a data transfer */
#define BPPIOC_TESTIO _IO('b', 6)
/* ioctl values 7-12 are test-only and are reserved */
/* Structure definitions and locals #defines below */
#define MAX_TIMEOUT 1800000 /* maximum read/write timeout */
/* 30 minutes */
/*
* #defines and enum variables, and general comments for the
* bpp_transfer_parms structure.
*/
/* Values for read_handshake and write_handshake fields */
enum handshake_t {
BPP_NO_HS = 1, /* no handshake pins */
BPP_ACK_HS = 2, /* handshake controlled by ACK line */
BPP_BUSY_HS = 3, /* handshake controlled by BSY line */
BPP_ACK_BUSY_HS = 4, /* handshake controlled by ACK and BSY lines */
/* read_handshake only! */
BPP_XSCAN_HS = 5, /* xerox scanner mode, read_handshake only! */
BPP_HSCAN_HS = 6, /* HP scanjet scanner mode */
/* read_handshake only! */
BPP_CLEAR_MEM = 7, /* write 0's to memory, read_handshake only! */
BPP_SET_MEM = 8, /* write 1's to memory, read_handshake only! */
/* The following handshakes are RESERVED. Do not use. */
BPP_VPRINT_HS = 9, /* valid only in read/write mode */
BPP_VPLOT_HS = 10 /* valid only in read/write mode */
};
/*
* The read_setup_time field indicates
* dstrb- to bsy+ in BPP_HS_NOHS or BPP_HS_ACKHS
* dstrb- to ack+ in BPP_HS_ACKHS or BPP_HS_ACKBUSYHS
* ack- to dstrb+ in BPP_HS_XSCANHS
*
* The read_strobe_width field indicates
* ack+ to ack- in BPP_HS_ACKHS or BPP_HS_ACKBUSYHS
* dstrb+ to dstrb- in BPP_HS_XSCANHS
*/
/* Values allowed for write_handshake field */
/*
* these are duplicates of the definitions above
* BPP_HS_NOHS
* BPP_HS_ACKHS
* BPP_HS_BUSYHS
*/
/*
* The write_setup_time field indicates
* data valid to dstrb+ in all handshakes
*
* The write_strobe_width field indicates
* dstrb+ to dstrb- in non-reserved handshakes
* minimum dstrb+ to dstrb- in BPP_HS_VPRINTHS or BPP_HS_VPLOTHS
*/
/*
* This structure is used to configure the hardware handshake and
* timing modes.
*/
struct bpp_transfer_parms {
enum handshake_t
read_handshake; /* parallel port read handshake mode */
int read_setup_time; /* DSS register - in nanoseconds */
int read_strobe_width; /* DSW register - in nanoseconds */
int read_timeout; /* wait this many microseconds */
/* before aborting a transfer */
enum handshake_t
write_handshake; /* parallel port write handshake mode */
int write_setup_time; /* DSS register - in nanoseconds */
int write_strobe_width; /* DSW register - in nanoseconds */
int write_timeout; /* wait this many microseconds */
/* before aborting a transfer */
};
struct bpp_pins {
uchar_t output_reg_pins; /* pins in P_OR register */
uchar_t input_reg_pins; /* pins in P_IR register */
};
/*
* #defines and general comments for
* the bpp_pins structure.
*/
/* Values for output_reg_pins field */
#define BPP_SLCTIN_PIN 0x01 /* Select in pin */
#define BPP_AFX_PIN 0x02 /* Auto feed pin */
#define BPP_INIT_PIN 0x04 /* Initialize pin */
#define BPP_V1_PIN 0x08 /* reserved pin 1 */
#define BPP_V2_PIN 0x10 /* reserved pin 2 */
#define BPP_V3_PIN 0x20 /* reserved pin 3 */
#define BPP_ALL_OUT_PINS (BPP_SLCTIN_PIN | BPP_AFX_PIN | BPP_INIT_PIN |\
BPP_V1_PIN | BPP_V2_PIN | BPP_V3_PIN)
/* Values for input_reg_pins field */
#define BPP_ERR_PIN 0x01 /* Error pin */
#define BPP_SLCT_PIN 0x02 /* Select pin */
#define BPP_PE_PIN 0x04 /* Paper empty pin */
#define BPP_ALL_IN_PINS (BPP_ERR_PIN | BPP_SLCT_PIN | BPP_PE_PIN)
struct bpp_error_status {
char timeout_occurred; /* 1 if a timeout occurred */
char bus_error; /* 1 if an SBus bus error */
uchar_t pin_status; /* status of pins which could */
/* cause an error */
};
/*
* #defines for the bpp_error_status structure
*/
/* Values for pin_status field */
#define BPP_ERR_ERR 0x01 /* Error pin active */
#define BPP_SLCT_ERR 0x02 /* Select pin active */
#define BPP_PE_ERR 0x04 /* Paper empty pin active */
#define BPP_SLCTIN_ERR 0x10 /* Select in pin active */
#define BPP_BUSY_ERR 0x40 /* Busy pin active */
#ifdef __cplusplus
}
#endif
#endif /* !_SYS_BPP_IO_H */
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