Add support for the Host Power State feature. (#1772)

* Add support for the Host Power State feature.

* Fix compiler ewrrors.

* Fix compiler errors round 2.

* Add newlines to end of file.

* Address review comments.

* Arrange to send the power state response again if the first attempt fails.

* Fix compiler issue.

examples/drivers/windows/otCli/main.cpp

@@ -32,6 +32,7 @@
 #include <openthread/openthread.h>
 #include <openthread/cli.h>
 #include <openthread/platform/uart.h>
+#include <openthread/platform/misc.h>
 
 bool skipNextLine = false;
 
@@ -83,3 +84,8 @@ EXTERN_C ThreadError otPlatUartSend(const uint8_t *aBuf, uint16_t aBufLength)
 
     return error;
 }
+
+EXTERN_C void otPlatWakeHost(void)
+{
+
+}

examples/platforms/cc2538/misc.c

@@ -43,3 +43,8 @@ otPlatResetReason otPlatGetResetReason(otInstance *aInstance)
     // TODO: Write me!
     return kPlatResetReason_PowerOn;
 }
+
+void otPlatWakeHost(void)
+{
+    // TODO: implement an operation to wake the host from sleep state.
+}

examples/platforms/cc2650/misc.c

@@ -69,3 +69,8 @@ otPlatResetReason otPlatGetResetReason(otInstance *aInstance)
         return kPlatResetReason_Unknown;
     }
 }
+
+void otPlatWakeHost(void)
+{
+    // TODO: implement an operation to wake the host from sleep state.
+}

examples/platforms/da15000/misc.c

@@ -43,3 +43,8 @@ otPlatResetReason otPlatGetResetReason(otInstance *aInstance)
     (void)aInstance;
     return kPlatResetReason_PowerOn;
 }
+
+void otPlatWakeHost(void)
+{
+    // TODO: implement an operation to wake the host from sleep state.
+}

examples/platforms/efr32/misc.c

@@ -93,3 +93,8 @@ otPlatResetReason otPlatGetResetReason(otInstance *aInstance)
 
     return reason;
 }
+
+void otPlatWakeHost(void)
+{
+    // TODO: implement an operation to wake the host from sleep state.
+}

examples/platforms/nrf52840/misc.c

@@ -99,3 +99,8 @@ otPlatResetReason otPlatGetResetReason(otInstance *aInstance)
 
     return reason;
 }
+
+void otPlatWakeHost(void)
+{
+    // TODO: implement an operation to wake the host from sleep state.
+}

examples/platforms/posix/misc.c

@@ -42,3 +42,8 @@ otPlatResetReason otPlatGetResetReason(otInstance *aInstance)
     (void)aInstance;
     return kPlatResetReason_PowerOn;
 }
+
+void otPlatWakeHost(void)
+{
+    // TODO: implement an operation to wake the host from sleep state.
+}