4 * \brief Common GPIO API.
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6 * Copyright (c) 2010 Atmel Corporation. All rights reserved.
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12 * Redistribution and use in source and binary forms, with or without
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13 * modification, are permitted provided that the following conditions are met:
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15 * 1. Redistributions of source code must retain the above copyright notice,
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16 * this list of conditions and the following disclaimer.
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18 * 2. Redistributions in binary form must reproduce the above copyright notice,
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19 * this list of conditions and the following disclaimer in the documentation
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20 * and/or other materials provided with the distribution.
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22 * 3. The name of Atmel may not be used to endorse or promote products derived
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23 * from this software without specific prior written permission.
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25 * 4. This software may only be redistributed and used in connection with an
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26 * Atmel microcontroller product.
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28 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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31 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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32 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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38 * POSSIBILITY OF SUCH DAMAGE.
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48 #if ( SAM3S || SAM3U || SAM3N || SAM3XA || SAM4S )
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49 # include "sam_ioport/sam_gpio.h"
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51 # include "xmega_ioport/xmega_gpio.h"
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53 # error Unsupported chip type
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58 * \defgroup gpio_group General Purpose Input/Output
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60 * This is the common API for GPIO. Additional features are available
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61 * in the documentation of the specific modules.
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63 * \section io_group_platform Platform Dependencies
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65 * The following functions are available on all platforms, but there may
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66 * be variations in the function signature (i.e. parameters) and
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67 * behaviour. These functions are typically called by platform-specific
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68 * parts of drivers, and applications that aren't intended to be
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70 * - gpio_pin_is_low()
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71 * - gpio_pin_is_high()
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72 * - gpio_set_pin_high()
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73 * - gpio_set_pin_group_high()
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74 * - gpio_set_pin_low()
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75 * - gpio_set_pin_group_low()
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76 * - gpio_toggle_pin()
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77 * - gpio_toggle_pin_group()
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78 * - gpio_configure_pin()
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79 * - gpio_configure_group()
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