110 lines
3.8 KiB
C
110 lines
3.8 KiB
C
|
/**
|
||
|
* \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);
|
||
|
}
|