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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 */