8e4a809f12
- C API read/write integer functions changed to int to match C types - C API now has close function to release resources acquired during init - iio internal type isr_event() function now has args param in signature - C++ API now supports events with handler interface and new data structure - C and C++ examples updated to use API changes Signed-off-by: Henry Bruce <henry.bruce@intel.com> Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
140 lines
4.2 KiB
C
140 lines
4.2 KiB
C
/*
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* Author: Brendan Le Foll <brendan.le.foll@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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#pragma once
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#include "common.h"
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#include "iio_kernel_headers.h"
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typedef struct {
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int index;
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int enabled;
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char* type;
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mraa_boolean_t lendian;
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int signedd;
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unsigned int offset;
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uint64_t mask;
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unsigned int bits_used;
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unsigned int bytes;
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unsigned int shift;
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unsigned int location;
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} mraa_iio_channel;
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typedef struct {
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char* name;
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int enabled;
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} mraa_iio_event;
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/**
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* @file
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* @brief iio
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*
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* An iio context represents an IIO device
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*
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* @snippet iio_driver.c Interesting
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <stdint.h>
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#include "common.h"
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/**
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* Opaque pointer definition to the internal struct _iio
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*/
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typedef struct _iio* mraa_iio_context;
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/**
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* Initialise iio context
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*
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* @param bus iio device to use
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* @return i2c context or NULL
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*/
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mraa_iio_context mraa_iio_init(int device);
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mraa_result_t mraa_iio_trigger_buffer(mraa_iio_context dev, void (*fptr)(char* data), void* args);
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const char* mraa_iio_get_device_name(mraa_iio_context dev);
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int mraa_iio_get_device_num_by_name(const char* name);
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int mraa_iio_read_size(mraa_iio_context dev);
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mraa_iio_channel* mraa_iio_get_channels(mraa_iio_context dev);
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int mraa_iio_get_channel_count(mraa_iio_context dev);
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mraa_result_t mraa_iio_read_float(mraa_iio_context dev, const char* filename, float* data);
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mraa_result_t mraa_iio_read_int(mraa_iio_context dev, const char* filename, int* data);
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mraa_result_t mraa_iio_read_string(mraa_iio_context dev, const char* filename, char* data, int max_len);
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mraa_result_t mraa_iio_write_float(mraa_iio_context dev, const char* attr_chan, const float data);
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mraa_result_t mraa_iio_write_int(mraa_iio_context dev, const char* attr_chan, const int data);
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mraa_result_t mraa_iio_write_string(mraa_iio_context dev, const char* attr_chan, const char* data);
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mraa_result_t mraa_iio_get_channel_data(mraa_iio_context dev);
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mraa_result_t mraa_iio_get_event_data(mraa_iio_context dev);
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mraa_result_t mraa_iio_event_poll(mraa_iio_context dev, struct iio_event_data* data);
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mraa_result_t
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mraa_iio_event_setup_callback(mraa_iio_context dev, void (*fptr)(struct iio_event_data* data, void* args), void* args);
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mraa_result_t mraa_iio_event_extract_event(struct iio_event_data* event,
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int* chan_type,
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int* modifier,
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int* type,
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int* direction,
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int* channel,
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int* channel2,
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int* different);
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mraa_result_t mraa_iio_get_mounting_matrix(mraa_iio_context dev, float mm[9]);
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mraa_result_t mraa_iio_create_trigger(mraa_iio_context dev, const char* trigger);
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mraa_result_t mraa_iio_update_channels(mraa_iio_context dev);
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/**
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* De-inits an mraa_iio_context device
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*
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* @param dev The iio context
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* @return Result of operation
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*/
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mraa_result_t mraa_iio_close(mraa_iio_context dev);
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#ifdef __cplusplus
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}
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#endif
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