89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
/* $NetBSD: cpi_nubusvar.h,v 1.2 2008/05/23 10:46:10 hauke Exp $ */
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/*-
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* Copyright (c) 2008 Hauke Fath
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef CPI_NUBUSVAR_H
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#define CPI_NUBUSVAR_H
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/* Where we find the Z8536 CIO in Nubus slot space */
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#define CIO_BASE_OFFSET 0x060010
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/* Max. length of card name string */
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#define CPI_CARD_NAME_LEN 64
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/* The CIO lives on the top 8 bit of the 32 bit data bus. */
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enum cio_regs {
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CIO_PORTC = 0x03,
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CIO_PORTB = 0x07,
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CIO_PORTA = 0x0b,
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CIO_CTRL = 0x0f
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};
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#define CPI_UNIT(c) (minor(c) & 0x1f)
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enum lp_state {
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LP_INITIAL = 0, /* device is closed */
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LP_OPENING, /* device is about to be opened */
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LP_OPEN, /* device is open */
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LP_BUSY, /* busy with data output */
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LP_ASLEEP, /* waiting for output completion */
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};
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/* Bit masks for Centronics status + handshake lines */
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enum hsk_lines {
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CPI_RESET = 0x01, /* PB0 */
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CPI_STROBE = 0x08, /* PC3 */
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CPI_BUSY = 0x40, /* PC0 */
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CPI_SELECT = 0x20, /* PB5 */
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CPI_FAULT = 0x02, /* PB1 */
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CPI_PAPER_EMPTY = 0x02, /* PC1 */
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CPI_ACK = 0x04 /* PC2 */
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};
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struct cpi_softc {
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struct device sc_dev;
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nubus_slot sc_slot; /* Nubus slot number */
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char cardname[CPI_CARD_NAME_LEN];
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bus_addr_t sc_basepa; /* base physical address */
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bus_space_tag_t sc_bst;
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bus_space_handle_t sc_bsh;
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ulong sc_intcount; /* Hard interrupts */
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ulong sc_bytestoport; /* Bytes written to port */
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struct callout sc_wakeupchan;
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#define CPI_BUFSIZE 0x0800
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char *sc_printbuf; /* Driver's print buffer */
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size_t sc_bufbytes; /* # of bytes in buffer */
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u_char *sc_cp; /* Next byte to send */
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u_char sc_lpstate;
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};
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#endif /* CPI_NUBUSVAR_H */
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