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/**
* \file
*
* \brief SAM GPIO Port Driver
*
* Copyright (C) 2012-2015 Atmel Corporation. All rights reserved.
*
* \asf_license_start
*
* \page License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
*
* \asf_license_stop
*
*/
/*
* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
*/
#include <port.h>
/**
* \brief Writes a Port pin configuration to the hardware module.
*
* Writes out a given configuration of a Port pin configuration to the hardware
* module.
*
* \note If the pin direction is set as an output, the pull-up/pull-down input
* configuration setting is ignored.
*
* \param[in] gpio_pin Index of the GPIO pin to configure
* \param[in] config Configuration settings for the pin
*/
void port_pin_set_config(
const uint8_t gpio_pin,
const struct port_config *const config)
{
/* Sanity check arguments */
Assert(config);
struct system_pinmux_config pinmux_config;
system_pinmux_get_config_defaults(&pinmux_config);
pinmux_config.mux_position = SYSTEM_PINMUX_GPIO;
pinmux_config.direction = (enum system_pinmux_pin_dir)config->direction;
pinmux_config.input_pull = (enum system_pinmux_pin_pull)config->input_pull;
pinmux_config.powersave = config->powersave;
system_pinmux_pin_set_config(gpio_pin, &pinmux_config);
}
/**
* \brief Writes a Port group configuration group to the hardware module.
*
* Writes out a given configuration of a Port group configuration to the
* hardware module.
*
* \note If the pin direction is set as an output, the pull-up/pull-down input
* configuration setting is ignored.
*
* \param[out] port Base of the PORT module to write to
* \param[in] mask Mask of the port pin(s) to configure
* \param[in] config Configuration settings for the pin group
*/
void port_group_set_config(
PortGroup *const port,
const uint32_t mask,
const struct port_config *const config)
{
/* Sanity check arguments */
Assert(port);
Assert(config);
struct system_pinmux_config pinmux_config;
system_pinmux_get_config_defaults(&pinmux_config);
pinmux_config.mux_position = SYSTEM_PINMUX_GPIO;
pinmux_config.direction = (enum system_pinmux_pin_dir)config->direction;
pinmux_config.input_pull = (enum system_pinmux_pin_pull)config->input_pull;
pinmux_config.powersave = config->powersave;
system_pinmux_group_set_config(port, mask, &pinmux_config);
}
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