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0749f130e1
Some API changes were made as well, see docs/apichanges.md. Signed-off-by: Jon Trulson <jtrulson@ics.com>
124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2017 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <stdlib.h>
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#include <stdio.h>
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#include <upm.h>
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#include <mraa/i2c.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @file nunchuck.h
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* @library nunchuck
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* @brief C API for the nunchuck driver
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*
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* @include nunchuck.c
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*/
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/**
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* Device context
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*/
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typedef struct _nunchuck_context {
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mraa_i2c_context i2c;
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// sticks - x, y
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int stickX;
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int stickY;
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// accel
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int accelX;
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int accelY;
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int accelZ;
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// buttons
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bool buttonC;
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bool buttonZ;
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} *nunchuck_context;
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/**
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* NUNCHUCK constructor
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*
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* @param bus I2C bus to use
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* @return A Device context, or NULL on error
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*/
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nunchuck_context nunchuck_init(int bus);
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/**
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* Close the device and deallocate all resources.
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*
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* @param dev Device context
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*/
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void nunchuck_close(nunchuck_context dev);
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/**
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* Reads and updates the current state of the controller.
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*
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* @param dev Device context
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* @return UPM result
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*/
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upm_result_t nunchuck_update(const nunchuck_context dev);
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/**
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* Returns the current analog stick X and Y positions.
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* nunchuck_update() must have been called prior to calling this
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* function.
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*
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* @param dev Device context
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* @param x Pointer in which the X value will be stored
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* @param y Pointer in which the Y value will be stored
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*/
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void nunchuck_get_stick(const nunchuck_context dev, int *x, int *y);
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/**
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* Returns the current accelerometer values. nunchuck_update()
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* must have been called prior to calling this function.
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*
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* @param dev Device context
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* @param x Pointer in which the X value will be stored
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* @param y Pointer in which the Y value will be stored
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* @param z Pointer in which the Z value will be stored
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*/
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void nunchuck_get_acceleration(const nunchuck_context dev,
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int *x, int *y, int *z);
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/**
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* Returns the current button values values. nunchuck_update()
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* must have been called prior to calling this function.
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*
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* @param dev Device context
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* @param c Pointer in which the C button value will be stored
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* @param z Pointer in which the Z button value will be stored
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*/
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void nunchuck_get_buttons(const nunchuck_context dev, bool *c, bool *z);
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#ifdef __cplusplus
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}
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#endif
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