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[/] [neo430/] [trunk/] [neo430/] [sw/] [lib/] [neo430/] [source/] [neo430_gpio.c] - Rev 198
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// ################################################################################################# // # < neo430_gpio.c - PIO controller helper functions > # // # ********************************************************************************************* # // # BSD 3-Clause License # // # # // # Copyright (c) 2020, Stephan Nolting. All rights reserved. # // # # // # 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. Neither the name of the copyright holder 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 HOLDER 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. # // # ********************************************************************************************* # // # The NEO430 Processor - https://github.com/stnolting/neo430 # // ################################################################################################# #include "neo430.h" #include "neo430_gpio.h" /* ------------------------------------------------------------ * INFO Set output pin * PARAM Pin number to be set (0..15) * ------------------------------------------------------------ */ void neo430_gpio_pin_set(uint8_t p) { GPIO_OUTPUT = GPIO_OUTPUT | (uint16_t)(1 << p); } /* ------------------------------------------------------------ * INFO Clear output pin * PARAM Pin number to be cleared (0..15) * ------------------------------------------------------------ */ void neo430_gpio_pin_clr(uint8_t p) { GPIO_OUTPUT = GPIO_OUTPUT & ~((uint16_t)(1 << p)); } /* ------------------------------------------------------------ * INFO Set output port * PARAM Output data * ------------------------------------------------------------ */ void neo430_gpio_port_set(uint16_t d) { GPIO_OUTPUT = d; } /* ------------------------------------------------------------ * INFO Toggle output port * PARAM Toggle output data * ------------------------------------------------------------ */ void neo430_gpio_port_toggle(uint16_t d) { GPIO_OUTPUT = GPIO_OUTPUT ^ d; } /* ------------------------------------------------------------ * INFO Toggle output pin * PARAM Pin number (0..15) * ------------------------------------------------------------ */ void neo430_gpio_pin_toggle(uint8_t p) { GPIO_OUTPUT = GPIO_OUTPUT ^ (uint16_t)(1 << p); } /* ------------------------------------------------------------ * INFO Get input pin state * PARAM Pin number (0..15) * RETURN 0 if pin cleared, pin set otherwise * ------------------------------------------------------------ */ uint16_t neo430_gpio_pin_get(uint8_t p) { return GPIO_INPUT & (uint16_t)(1 << p); } /* ------------------------------------------------------------ * INFO Get input port * RETURN Input port state * ------------------------------------------------------------ */ uint16_t neo430_gpio_port_get(void) { return GPIO_INPUT; }