1 /*        $NetBSD: epgpiovar.h,v 1.1 2005/11/12 05:33:23 hamajima Exp $         */
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_ */
73