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82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/*
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* Author: Sarah Knepper <sarah.knepper@intel.com>
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* Abhishek Malik <abhishek.malik@intel.com>
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* Copyright (c) 2015 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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#ifndef TTP223_H_
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#define TTP223_H_
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include "upm.h"
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#include "mraa/gpio.h"
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/**
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* device context
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*/
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typedef struct _ttp223_context {
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mraa_gpio_context gpio;
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uint8_t gpio_pin;
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bool isr_installed;
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} *ttp223_context;
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/**
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* Sensor Init function
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*
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* @param pin The pin number the sensor is attached to
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* @return void* pointer to the sensor struct
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*/
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ttp223_context ttp223_init(int pin);
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/**
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* Sensor Module close function
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*
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* @param dev pointer to the sensor struct
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*/
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void ttp223_close(ttp223_context dev);
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/**
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* Function to tell if the sensor is pressed
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*
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* @param dev pointer to the sensor struct
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* @param value pointer to store whether the sensor is pressed or not
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* @result upm_result_t UPM success/error code
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*/
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upm_result_t ttp223_is_pressed(ttp223_context dev, bool* value);
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/**
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*
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*/
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upm_result_t ttp223_install_isr(ttp223_context dev,
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mraa_gpio_edge_t edge_level,
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void (*isr)(void *), void *arg);
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/**
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*
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*/
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upm_result_t ttp223_uninstall_isr(ttp223_context);
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#endif /* TTP223_H_ */
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