mic: added C sources for microphone sensor

Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/mic/CMakeLists.txt

@@ -1,5 +1,8 @@
-set (libname "mic")
-set (libdescription "Microphone simple API")
-set (module_src ${libname}.cxx)
-set (module_hpp ${libname}.hpp)
-upm_module_init()
+upm_mixed_module_init (NAME mic
+    DESCRIPTION "Simple Microphone API"
+    C_HDR mic.h
+    C_SRC mic.c
+    CPP_HDR mic.hpp
+    CPP_SRC mic.cxx
+    FTI_SRC mic_fti.c
+    REQUIRES mraa)

src/mic/mic.c

@@ -0,0 +1,58 @@
+/*
+ * Author: Brendan Le Foll <brendan.le.foll@intel.com>
+ * 	   Sisinty Sasmita Patra <sisinty.s.patra@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 "mic.h"
+
+mic_context upm_mic_init(int pin)
+{
+    mic_context dev = (mic_context)malloc(sizeof(struct _mic_context));
+
+    if(dev == NULL) return NULL;
+
+    dev->analog_pin = pin;
+    dev->aio = mraa_aio_init(dev->analog_pin);
+
+    if(dev->aio == NULL)
+    {
+        printf("unable to initialize the AIO pin");
+        free(dev);
+        return NULL;
+    }
+
+    return dev;
+}
+
+void mic_close(mic_context dev)
+{
+    mraa_aio_close(dev->aio);
+    free(dev);
+}
+
+upm_result_t mic_get_value(mic_context dev, float *micval)
+{
+    *micval =  mraa_aio_read(dev->aio);
+    return UPM_SUCCESS;
+}

src/mic/mic.h

@@ -0,0 +1,51 @@
+/*
+ * Author: Brendan Le Foll <brendan.le.foll@intel.com>
+ * 	   Sisinty Sasmita Patra <sisinty.s.patra@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 MIC_H_
+#define MIC_H_
+
+#pragma once
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "upm.h"
+#include "mraa/aio.h"
+
+/**
+ * device context
+ */
+typedef struct _mic_context {
+    mraa_aio_context aio;
+    uint16_t analog_pin;
+} *mic_context;
+
+mic_context mic_init(int pin);
+
+void mic_close(mic_context dev);
+
+upm_result_t mic_get_value(mic_context dev, float* micval);
+
+#endif /* MIC_H_ */

src/mic/mic_fti.c

@@ -0,0 +1,91 @@
+/*
+ * Author: Brendan Le Foll <brendan.le.foll@intel.com>
+ * 	   Sisinty Sasmita Patra <sisinty.s.patra@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 "mic.h"
+#include "upm_fti.h"
+
+/** 
+ * This file implements the Function Table Interface (FTI) for this sensor
+ */
+
+const char upm_mic_name[] = "Microphone";
+const char upm_mic_description[] = "Analog Microphone";
+const upm_protocol_t upm_mic_protocol[] = {UPM_ANALOG};
+const upm_sensor_t upm_mic_category[] = {UPM_AUDIO};
+
+// forward declarations
+const upm_sensor_descriptor_t upm_mic_get_descriptor();
+const void* upm_mic_get_ft(upm_sensor_t sensot_type);
+void* upm_mic_init_name();
+void upm_mic_close(void* dev);
+upm_result_t upm_mic_get_value(void* dev, float* micval, upm_audio_u unit);
+
+const upm_sensor_descriptor_t upm_mic_get_descriptor() {
+    upm_sensor_descriptor_t usd;
+    usd.name = upm_mic_name;
+    usd.description = upm_mic_description;
+    usd.protocol_size = 1;
+    usd.protocol = upm_mic_protocol;
+    usd.category_size = 1;
+    usd.category = upm_mic_category;
+    return usd;
+}
+
+static const upm_sensor_ft ft =
+{
+    .upm_sensor_init_name = &upm_mic_init_name,
+    .upm_sensor_close = &upm_mic_close,
+    .upm_sensor_get_descriptor = &upm_mic_get_descriptor
+};
+
+static const upm_audio_ft aft =
+{
+    .upm_audio_get_value = &upm_mic_get_value
+};
+
+const void* upm_mic_get_ft(upm_sensor_t sensor_type) {
+    if(sensor_type == UPM_SENSOR) {
+        return &ft;
+    }
+    if(sensor_type == UPM_AUDIO) {
+        return &aft;
+    }
+    return NULL;
+}
+
+void* upm_mic_init_name(){
+    return NULL;
+}
+
+void upm_mic_close(void* dev)
+{
+    mic_close((mic_context)dev);
+}
+
+upm_result_t upm_mic_get_value(void* dev, float *micval, upm_audio_u unit)
+{
+    return mic_get_value((mic_context)dev, micval);
+}