/*
* Copyright (c) 2018 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup uspace_drv_pc_lpt
* @{
*/
/** @file
*/
#ifndef PC_LPT_HW_H
#define PC_LPT_HW_H
#include <ddi.h>
/** PC parallel port registers */
typedef struct {
/** Data out register */
ioport8_t data;
/** Status register */
ioport8_t status;
/** Control register */
ioport8_t control;
} pc_lpt_regs_t;
/** Printer control register bits */
typedef enum {
/** Strobe */
ctl_strobe = 0,
/** Auto linefeed */
ctl_autofd = 1,
/** -Init */
ctl_ninit = 2,
/** Select */
ctl_select = 3,
/** IRQ Enable */
ctl_irq_enable = 4
} pc_lpt_ctl_bits_t;
/** Printer status register bits */
typedef enum {
/** -Error */
sts_nerror = 3,
/** Select */
sts_select = 4,
/** Init */
sts_paper_end = 5,
/** -Ack */
sts_nack = 6,
/** -Busy */
sts_nbusy = 7
} pc_lpt_sts_bits_t;
#endif
/** @}
*/