sys/dev/serial/cy/cyreg.h

   1 /*-
   2  * Copyright (c) 1995 Bruce Evans.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the author nor the names of contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $FreeBSD: src/sys/i386/isa/cyreg.h,v 1.9 1999/08/28 00:44:40 peter Exp $
  30  * $DragonFly: src/sys/dev/serial/cy/cyreg.h,v 1.2 2003/06/17 04:28:37 dillon Exp $
  31  */
  32
  33 /*
  34  * Definitions for Cyclades Cyclom-Y serial boards.
  35  */
  36
  37 /*
  38  * Cyclades register offsets.  These are physical offsets for ISA boards
  39  * and physical offsets divided by 2 for PCI boards.
  40  */
  41 #define CY8_SVCACKR             0x100   /* (r) */
  42 #define CY8_SVCACKT             0x200   /* (r) */
  43 #define CY8_SVCACKM             0x300   /* (r) */
  44 #define CY16_RESET              0x1400  /* (r) */
  45 #define CY_CLEAR_INTR           0x1800  /* intr ack address (w) */
  46
  47 #define CY_MAX_CD1400s          8       /* for Cyclom-32Y */
  48
  49 #define CY_CLOCK(version)       ((version) >= 0x48 ? 60000000 : 25000000)
  50 #define CY_RTS_DTR_SWAPPED(version)     ((version) >= 0x48)
  51
  52 /*
  53  * The `cd' macros are for access to cd1400 registers.  The `cy' macros
  54  * are for access to Cyclades registers.  Both sets of macros scale the
  55  * register number to get an offset, but the scales are different for
  56  * mostly historical reasons.
  57  */
  58 #ifdef CyDebug
  59 #define cd_inb(iobase, reg, cy_align) \
  60         (++cd_inbs, *((iobase) + (2 * (reg) << (cy_align))))
  61 #define cy_inb(iobase, reg, cy_align) \
  62         (++cy_inbs, *((iobase) + ((reg) << (cy_align))))
  63 #define cd_outb(iobase, reg, cy_align, val) \
  64         (++cd_outbs, (void)(*((iobase) + (2 * (reg) << (cy_align))) = (val)))
  65 #define cy_outb(iobase, reg, cy_align, val) \
  66         (++cy_outbs, (void)(*((iobase) + ((reg) << (cy_align))) = (val)))
  67 #else
  68 #define cd_inb(iobase, reg, cy_align) \
  69         (*((iobase) + (2 * (reg) << (cy_align))))
  70 #define cy_inb(iobase, reg, cy_align) \
  71         (*((iobase) + ((reg) << (cy_align))))
  72 #define cd_outb(iobase, reg, cy_align, val) \
  73         ((void)(*((iobase) + (2 * (reg) << (cy_align))) = (val)))
  74 #define cy_outb(iobase, reg, cy_align, val) \
  75         ((void)(*((iobase) + ((reg) << (cy_align))) = (val)))
  76 #endif