Diff: resources/PwmOutResource.cpp

Revision:

15:fba25b7e63cd

diff -r 54c3708f7c3c -r fba25b7e63cd resources/PwmOutResource.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resources/PwmOutResource.cpp	Sun Jun 21 12:12:34 2015 +0000
@@ -0,0 +1,83 @@
+/**
+ * Implementierung PwmOut Resource
+ */
+ 
+#include "PwmOutResource.h" 
+
+/** Erste verkettete Resource */
+PwmOutResource * firstPwmOutResource;
+ 
+/** Default Konstruktor 
+ *  @param pin Pin fuer PwmOut 
+ */ 
+PwmOutResource::PwmOutResource( PinName pin, char *name, char *id ) 
+{
+    resource = new PwmOut( pin ); 
+    this->id = id;
+    this->name = name;
+    
+    // neu verketten - letztes hinzugefuegstes Element = first.
+    if  ( firstPwmOutResource != (PwmOutResource *) 0 )
+        this->next = firstPwmOutResource;
+    firstPwmOutResource = this;
+}
+ 
+/** Erstellt die Resource 
+ *  @param sn_nsdl_resource_info_s CoAP struct
+ *  @return 0 wenn ohne Fehler
+ */ 
+int PwmOutResource::create( sn_nsdl_resource_info_s *resource_ptr )
+{
+    nsdl_create_dynamic_resource(resource_ptr, strlen(id), (uint8_t*) id, strlen(name), (uint8_t*) name, 0, &PwmOutResource::callback, (SN_GRS_GET_ALLOWED | SN_GRS_PUT_ALLOWED));
+    return  ( 0 );
+}
+
+/** Callback wenn die Resource gelesen oder geaendert werden soll
+ *  @param sn_coap_hdr_s
+ *  @param sn_nsdl_addr_s
+ *  @param sn_proto_info_s
+ *  @return 0 wenn ohne Fehler
+ */
+uint8_t PwmOutResource::callback( sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto )
+{
+    sn_coap_hdr_s *coap_res_ptr = 0;
+    char buf[8];
+    char path[8];
+    PwmOutResource* current;
+ 
+    // Path wegkopieren mit \0
+    strncpy( path, (const char*) received_coap_ptr->uri_path_ptr, received_coap_ptr->uri_path_len );
+    printf("light callback %s\r\n", path );
+    
+    // Resource laut path suchen
+    for ( current = firstPwmOutResource; current != (PwmOutResource *) 0; current = current->next )
+        if  ( strcmp( path, current->id ) == 0 )
+            break;
+    // nichts gefunden - keine weitere Abhandlung
+    if  ( current == (PwmOutResource*) 0 )
+        return  ( 1 );
+ 
+    // CoAP GET
+    if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET)
+    {
+        coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT);
+
+        sprintf( buf, "%d",  (int) (current->resource->read() * 100) );
+        coap_res_ptr->payload_len = strlen( buf );
+        coap_res_ptr->payload_ptr = (uint8_t*) buf;
+        sn_nsdl_send_coap_message(address, coap_res_ptr);
+    }
+    // CoAP PUT
+    else if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_PUT)
+    {
+        memcpy(buf, (char *)received_coap_ptr->payload_ptr, received_coap_ptr->payload_len);
+        buf[received_coap_ptr->payload_len] = '\0';
+        current->resource->write( atof( buf ) / 100 );
+ 
+        coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CHANGED);
+        sn_nsdl_send_coap_message(address, coap_res_ptr);
+    }
+ 
+    sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr);    
+    return  ( 0 );
+}