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Annotation of sys/arch/arm/sa11x0/sa11x0_gpiovar.h, Revision 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 */