sys/arch/mac68k/nubus/cpi_nubusvar.h

   1 /*      $NetBSD$        */
   2
   3 /*-
   4  * Copyright (c) 2008 Hauke Fath
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #ifndef CPI_NUBUSVAR_H
  28 #define CPI_NUBUSVAR_H
  29
  30 /* Where we find the Z8536 CIO in Nubus slot space */
  31 #define CIO_BASE_OFFSET 0x060010
  32
  33 /* Max. length of card name string */
  34 #define CPI_CARD_NAME_LEN 64
  35
  36 /* The CIO lives on the top 8 bit of the 32 bit data bus. */
  37 enum cio_regs {
  38         CIO_PORTC = 0x03,
  39         CIO_PORTB = 0x07,
  40         CIO_PORTA = 0x0b,
  41         CIO_CTRL  = 0x0f
  42 };
  43
  44 #define CPI_UNIT(c)     (minor(c) & 0x1f)
  45
  46 enum lp_state {
  47         LP_INITIAL = 0,         /* device is closed */
  48         LP_OPENING,             /* device is about to be opened */
  49         LP_OPEN,                /* device is open */
  50         LP_BUSY,                /* busy with data output */
  51         LP_ASLEEP,              /* waiting for output completion */
  52 };
  53
  54 /* Bit masks for Centronics status + handshake lines */
  55 enum hsk_lines {
  56         CPI_RESET = 0x01,       /* PB0 */
  57         CPI_STROBE = 0x08,      /* PC3 */
  58         CPI_BUSY = 0x40,        /* PC0 */
  59         CPI_SELECT = 0x20,      /* PB5 */
  60         CPI_FAULT = 0x02,       /* PB1 */
  61         CPI_PAPER_EMPTY = 0x02, /* PC1 */
  62         CPI_ACK = 0x04          /* PC2 */
  63 };
  64
  65 struct cpi_softc {
  66         struct device           sc_dev;
  67
  68         nubus_slot              sc_slot;        /* Nubus slot number */
  69         char                    cardname[CPI_CARD_NAME_LEN];
  70
  71         bus_addr_t              sc_basepa;      /* base physical address */
  72         bus_space_tag_t         sc_bst;
  73         bus_space_handle_t      sc_bsh;
  74
  75         ulong                   sc_intcount;    /* Hard interrupts */
  76         ulong                   sc_bytestoport; /* Bytes written to port */
  77
  78         struct callout          sc_wakeupchan;
  79
  80 #define CPI_BUFSIZE     0x0800
  81         char                    *sc_printbuf;   /* Driver's print buffer */
  82         size_t                  sc_bufbytes;    /* # of bytes in buffer */
  83         u_char                  *sc_cp;         /* Next byte to send */
  84
  85         u_char                  sc_lpstate;
  86 };
  87
  88 #endif /* CPI_NUBUSVAR_H */