Loudness: Adding C components

Signed-off-by: Abhishek Malik <abhishek.malik@intel.com>

src/groveloudness/CMakeLists.txt

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+upm_mixed_module_init (NAME loudness
+    DESCRIPTION "upm loudness sensor module"
+    C_HDR loudness.h
+    C_SRC loudness.c
+    CPP_SRC groveloudness.cxx
+    CPP_WRAPS_C
+    REQUIRES libmraa)

src/groveloudness/loudness.c

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+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ *         Abhishek Malik <abhishek.malik@intel.com>
+ * Copyright (c) 2016 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 "loudness.h"
+
+loudness_context loudness_init(int pin) {
+    loudness_context dev =
+      (loudness_context) malloc(sizeof(struct _loudness_context));
+
+    if (!dev)
+      return NULL;
+
+    dev->aio = mraa_aio_init(pin);
+
+    if (!dev->aio)
+      {
+        free(dev);
+        return NULL;
+      }
+
+    return dev;
+}
+
+void loudness_close(loudness_context dev) {
+    mraa_aio_close(dev->aio);
+    free(dev);
+}
+
+upm_result_t loudness_get_value(loudness_context dev, int* val) {
+    *val = mraa_aio_read(dev->aio);
+
+    return UPM_SUCCESS;
+}

src/groveloudness/loudness.h

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+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ *         Abhishek Malik <abhishek.malik@intel.com>
+ * Copyright (c) 2016 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.
+ */
+
+#ifndef LOUDNESS_LOUDNESS_H_
+#define LOUDNESS_LOUDNESS_H_
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "upm.h"
+#include "mraa/aio.h"
+
+/**
+ * device context
+ */
+typedef struct _loudness_context {
+    mraa_aio_context            aio;
+} *loudness_context;
+
+/**
+ * Loudness Initialization function
+ *
+ * @param pin AIO pin to use
+ * @return void* pointer to the sensor struct
+ */
+loudness_context loudness_init(int pin);
+
+/**
+ * Loudness destructor
+ *
+ * @param void* pointer to the sensor struct
+ */
+void loudness_close(loudness_context dev);
+
+/**
+ * Function gets the loudness raw value (currently)
+ *
+ * @param void* pointer to the sensor struct
+ * @param int* pointer to store the loudness value.
+ * @return upm_result_t UPM success/error code
+ */
+upm_result_t loudness_get_value(loudness_context dev, int* val);
+
+#endif /* LOUDNESS_LOUDNESS_H_ */

src/groveloudness/loudness_fti.c

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+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ *         Abhishek Malik <abhishek.malik@intel.com>
+ * Copyright (c) 2016 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 "loudness.h"
+#include "upm_fti.h"
+
+/**
+ * This file implements the Function Table Interface (FTI) for this sensor
+ */
+
+const char upm_loudness_name[] = "loudness";
+const char upm_loudness_description[] = " Loudness Sensor";
+const upm_protocol_t upm_loudness_protocol[] = {UPM_ANALOG};
+const upm_sensor_t upm_loudness_category[] = {UPM_AUDIO};
+
+// forward declarations
+const void* upm_loudness_get_ft(upm_sensor_t sensor_type);
+const upm_sensor_descriptor_t upm_loudness_get_descriptor();
+void* upm_loudness_init_name();
+void upm_loudness_close(void* dev);
+
+
+const upm_sensor_descriptor_t upm_loudness_get_descriptor(){
+    upm_sensor_descriptor_t usd;
+    usd.name = upm_loudness_name;
+    usd.description = upm_loudness_description;
+    usd.protocol_size = 1;
+    usd.protocol = upm_loudness_protocol;
+    usd.category_size = 1;
+    usd.category = upm_loudness_category;
+    return usd;
+}
+
+static const upm_sensor_ft ft =
+{
+    .upm_sensor_init_name = &upm_loudness_init_name,
+    .upm_sensor_close = &upm_loudness_close,
+    .upm_sensor_get_descriptor = &upm_loudness_get_descriptor
+};
+
+const void* upm_loudness_get_ft(upm_sensor_t sensor_type){
+    if(sensor_type == UPM_SENSOR){
+        return &ft;
+    }
+    return NULL;
+}
+
+void* upm_loudness_init_name(){
+    return NULL;
+}
+
+void upm_loudness_close(void* dev){
+    loudness_close((loudness_context)dev);
+}
+
+upm_result_t upm_loudness_get_value(void* dev, int* val){
+    return loudness_get_value((loudness_context)dev, val);
+}