Annotation of sys/arch/arm/sa11x0/sa11x0_gpiovar.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: sa11x0_gpio.h,v 1.5 2005/04/08 21:50:37 uwe Exp $ */
2: /* $wasabi$ */
3:
4: /*
5: * Copyright 2003 Wasabi Systems, Inc.
6: * All rights reserved.
7: *
8: * Written by Steve C. Woodford for Wasabi Systems, Inc.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed for the NetBSD Project by
21: * Wasabi Systems, Inc.
22: * 4. The name of Wasabi Systems, Inc. may not be used to endorse
23: * or promote products derived from this software without specific prior
24: * written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
30: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36: * POSSIBILITY OF SUCH DAMAGE.
37: */
38:
39: #ifndef _SA11X0_GPIO_H
40: #define _SA11X0_GPIO_H
41:
42: /*
43: * If you want to fiddle with GPIO registers before the
44: * driver has been autoconfigured (e.g. from initarm()),
45: * call this function with the virtual address of the
46: * GPIO controller's registers
47: */
48: void sa11x0_gpio_bootstrap(vaddr_t);
49:
50: /* GPIO pin function query/manipulation functions */
51: #define SAGPIO_FUNC_GPIO 0x00
52: #define SAGPIO_FUNC_ALT 0x01
53: u_int sa11x0_gpio_get_function(u_int);
54: u_int sa11x0_gpio_set_function(u_int, u_int);
55:
56: /* level */
57: #define SAGPIO_LEVEL_LOW 0x00
58: #define SAGPIO_LEVEL_HIGH 0x01
59: int sa11x0_gpio_get_bit(u_int gpio);
60: void sa11x0_gpio_set_bit(u_int gpio);
61: void sa11x0_gpio_clear_bit(u_int gpio);
62:
63: /* direction */
64: #define SAGPIO_DIR_INPUT 0x00
65: #define SAGPIO_DIR_OUTPUT 0x01
66: void sa11x0_gpio_set_dir(u_int gpio, int dir);
67: u_int sa11x0_get_dir(u_int gpio);
68:
69: /* clear edge detect */
70: void sa11x0_gpio_clear_intr(u_int gpio);
71:
72: /*
73: * Establish/Disestablish interrupt handlers for GPIO pins
74: */
75: void *sa11x0_gpio_intr_establish(u_int, int, int, int (*)(void *), void *,
76: char *);
77: void sa11x0_gpio_intr_disestablish(void *);
78: const char *sa11x0_gpio_intr_string(void *);
79: void sa11x0_gpio_intr_mask(void *);
80: void sa11x0_gpio_intr_unmask(void *);
81:
82: #endif /* _SA11X0_GPIO_H */
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