From ed6f4dbfa44f154af94776093a2b43fc7a8a7320 Mon Sep 17 00:00:00 2001 From: Noé Rubinstein Date: Wed, 28 Jul 2010 12:25:26 +0200 Subject: GPIO kernel interface driver --- gpio/gpio.h | 130 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 gpio/gpio.h (limited to 'gpio/gpio.h') diff --git a/gpio/gpio.h b/gpio/gpio.h new file mode 100644 index 0000000..44ae744 --- /dev/null +++ b/gpio/gpio.h @@ -0,0 +1,130 @@ + +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2007,2008,2009 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Corporation + * + * BSD LICENSE + * + * Copyright(c) 2007,2008,2009 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * + * version: Embedded.L.1.0.3-144 + */ + +/***************************************************************************** + * Module name: + * gpio + * + * Abstract: + * This header file is to be included by the gpio.c file only. + * + * Revision: + * TBD + * + *****************************************************************************/ + +#ifndef GPIO_H +#define GPIO_H + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "common.h" + +#define DRIVERNAME "gpio_ref" + + +/****************************************************************************** + + Description: + This structure contains data that is used for most driver operations. + + *****************************************************************************/ +struct drvr_data +{ + struct gpio_regs regs; + void *mem_virt; + unsigned int mem_base; + unsigned int mem_resrvd; +}; + +enum gpio_direction { GPIO_INPUT, GPIO_OUTPUT }; +enum gpio_level { GPIO_LOW, GPIO_HIGH }; + +int gpio_set_to_gpio(int signal); +int gpio_set_to_alternative(int signal); +int gpio_set_direction(int signal, int direction); +int gpio_set_level(int signal, int level); +int gpio_get_level(int signal); +int gpio_set_blink(int signal, int blink); +int gpio_inverted_input(int signal, int inverted); +const struct gpio_regs* gpio_regs(void); + +int gpio_init(void); +void gpio_close(void); +int gpio_getpininfo(int Signal, char *pBuff); +void set_reg_addrs(unsigned int addr); + +#endif + -- cgit v1.2.3