upm/src/bmm150/bmm150_fti.c
Jon Trulson aeaf84ccc6 bmm150: split into new library, C port, FTI, C++ wraps C
Signed-off-by: Jon Trulson <jtrulson@ics.com>
2017-03-30 16:43:35 -06:00

107 lines
2.9 KiB
C

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2017 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "bmm150.h"
#include "upm_fti.h"
/**
* This file implements the Function Table Interface (FTI) for this sensor
*/
const char upm_bmm150_name[] = "BMM150";
const char upm_bmm150_description[] = "Triple Axis Digital Magnetometer";
const upm_protocol_t upm_bmm150_protocol[] = {UPM_I2C, UPM_SPI, UPM_GPIO};
const upm_sensor_t upm_bmm150_category[] = {UPM_MAGNETOMETER};
// forward declarations
const void* upm_bmm150_get_ft(upm_sensor_t sensor_type);
void* upm_bmm150_init_name();
void upm_bmm150_close(void *dev);
upm_result_t upm_bmm150_get_value(void *dev, float *value);
const upm_sensor_descriptor_t upm_bmm150_get_descriptor()
{
upm_sensor_descriptor_t usd;
usd.name = upm_bmm150_name;
usd.description = upm_bmm150_description;
usd.protocol_size = 3;
usd.protocol = upm_bmm150_protocol;
usd.category_size = 1;
usd.category = upm_bmm150_category;
return usd;
}
static const upm_sensor_ft ft =
{
.upm_sensor_init_name = &upm_bmm150_init_name,
.upm_sensor_close = &upm_bmm150_close,
};
static const upm_magnetometer_ft mft =
{
.upm_magnetometer_get_value = &upm_bmm150_get_value
};
const void* upm_bmm150_get_ft(upm_sensor_t sensor_type)
{
switch(sensor_type)
{
case UPM_SENSOR:
return &ft;
case UPM_MAGNETOMETER:
return &mft;
default:
return NULL;
}
}
void* upm_bmm150_init_name()
{
return NULL;
}
void upm_bmm150_close(void *dev)
{
bmm150_close((bmm150_context)dev);
}
upm_result_t upm_bmm150_get_value(void *dev, float *value)
{
if (bmm150_update((bmm150_context)dev))
return UPM_ERROR_OPERATION_FAILED;
float x, y, z;
bmm150_get_magnetometer(dev, &x, &y, &z);
value[0] = x;
value[1] = y;
value[2] = z;
return UPM_SUCCESS;
}