sys/arch/arm/ep93xx/epgpiovar.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 2005 HAMAJIMA Katsuomi. All rights reserved.
   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 AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27
  28 #ifndef _EPGPIOVAR_H_
  29 #define _EPGPIOVAR_H_
  30
  31 typedef enum {
  32         PORT_A = 0,
  33         PORT_B = 1,
  34         PORT_C = 2,
  35         PORT_D = 3,
  36         PORT_E = 4,
  37         PORT_F = 5,
  38         PORT_G = 6,
  39         PORT_H = 7
  40 } epgpio_port;
  41
  42 struct epgpio_softc;
  43
  44 int epgpio_read(struct epgpio_softc *,epgpio_port, int bit);
  45 void epgpio_set(struct epgpio_softc *,epgpio_port, int bit);
  46 void epgpio_clear(struct epgpio_softc *,epgpio_port, int bit);
  47 void epgpio_in(struct epgpio_softc *,epgpio_port, int bit);
  48 void epgpio_out(struct epgpio_softc *,epgpio_port, int bit);
  49
  50 void *epgpio_intr_establish(struct epgpio_softc *,epgpio_port, int bit,
  51                             int flag, int ipl, int (*)(void *), void *);
  52 void epgpio_intr_disestablish(struct epgpio_softc *,epgpio_port, int bit);
  53
  54 /* interrupt flags */
  55 #define EDGE_TRIGGER    0x01
  56 #define LEVEL_SENSE     0x00
  57 #define RISING_EDGE     0x02
  58 #define HIGH_LEVEL      0x02
  59 #define FALLING_EDGE    0x00
  60 #define LOW_LEVEL       0x00
  61 #define DEBOUNCE        0x04
  62
  63 struct epgpio_attach_args {
  64         struct epgpio_softc     *ga_gc;
  65         bus_space_tag_t         ga_iot;         /* Bus tag */
  66         bus_addr_t              ga_addr;        /* i/o address */
  67         int                     ga_port;
  68         int                     ga_bit1;
  69         int                     ga_bit2;
  70 };
  71
  72 #endif  /* _EPGPIOVAR_H_ */