build: device-grove updates for CSDK v1.3 (#50)

Signed-off-by: Iain Anderson <iain@iotechsys.com>

Makefile

@@ -22,7 +22,7 @@ clean:
 	    rm -f $(MICROSERVICES)
 
 ./VERSION:
-	    @git describe --abbrev=0 > ./VERSION
+	    @git describe --abbrev=0 | sed 's/^v//' > ./VERSION
 
 version: ./VERSION
 	    echo ${VERSION}

README.md

@@ -31,17 +31,3 @@ By default, the configuration and profile file used by the service are available
 2. --device=/dev/ < i2c-device > to map host device to the container. For Raspberry PI, it is i2c-1.
 
 **Note:** On Raspberry PI, make sure that i2c_arm=on is set. This enables i2c-1 device, required for communication between Grove PI & Raspberry PI boards.
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scripts/build_deps.sh

@@ -3,6 +3,8 @@ set -e -x
 
 BUILD_CSDK=$1
 
+CSDK_VER=1.3.0-dev.10
+
 # Dependencies
 if [ ! -d deps ]
 then
@@ -34,9 +36,9 @@ then
   make
   make install
 
-  wget https://github.com/edgexfoundry/device-sdk-c/archive/v1.2.2.zip
-  unzip v1.2.2.zip
-  cd device-sdk-c-1.2.2
+  wget https://github.com/edgexfoundry/device-sdk-c/archive/v${CSDK_VER}.zip
+  unzip v${CSDK_VER}.zip
+  cd device-sdk-c-${CSDK_VER}
   ./scripts/build.sh
   cp -rf include/* /usr/include/
   cp build/release/c/libcsdk.so /usr/lib/

src/c/main.c

@@ -307,7 +307,7 @@ static bool grove_init (void *impl, struct iot_logger_t *lc, const iot_data_t *c
 
   mraa_add_subplatform (MRAA_GROVEPI, "0");
 
-  BME680_Temp_Offset = (config) ? strtof (iot_data_string_map_get_string (config, "BME680_Temp_Offset"), NULL) : 0.0;
+  BME680_Temp_Offset = iot_data_f32 (iot_data_string_map_get (config, "BME680_Temp_Offset"));
 
   /* read the attributes from the device profile to initialize the driver */
   profiles = edgex_profiles (impln->svc);
@@ -360,6 +360,12 @@ static bool grove_init (void *impl, struct iot_logger_t *lc, const iot_data_t *c
   return (status == MRAA_SUCCESS);
 }
 
+static void grove_reconfigure (void *impl, const iot_data_t *config)
+{
+  grove_pidriver_t *driver = (grove_pidriver_t *) impl;
+  iot_log_error (driver->lc, "Grove [Driver] configuration cannot be updated while running. Please restart the service.");
+}
+
 static bool grove_gethandler
   (
     void *impl,
@@ -735,6 +741,7 @@ static void grove_stop (void *impl, bool force)
 
 int main (int argc, char *argv[])
 {
+  iot_data_t *defaults = NULL;
   grove_pidriver_t *implObject = malloc (sizeof (grove_pidriver_t));
   memset (implObject, 0, sizeof (grove_pidriver_t));
   sem_init (&grove_sem, 0, 0);
@@ -746,6 +753,7 @@ int main (int argc, char *argv[])
   devsdk_callbacks myImpls = 
   {
       grove_init,
+      grove_reconfigure,
       NULL,
       grove_gethandler,
       grove_puthandler,
@@ -775,8 +783,14 @@ int main (int argc, char *argv[])
   }
 
   implObject->svc = grove_service;
+
+  /* Setup default configuration */
+
+  defaults = iot_data_alloc_map (IOT_DATA_STRING);
+  iot_data_string_map_add (defaults, "BME680_Temp_Offset", iot_data_alloc_f32 (0.0));
+
   /* Start the device service*/
-  devsdk_service_start (grove_service, &err);
+  devsdk_service_start (grove_service, defaults, &err);
   GROVE_ERR_CHECK (err);
 
   printf ("\nRunning - press ctrl-c to exit\n");
@@ -791,6 +805,7 @@ int main (int argc, char *argv[])
 
   sem_destroy (&grove_sem);
   devsdk_service_free (grove_service);
+  iot_data_free (defaults);
   free (implObject);
 
   return 0;