Diff: resources/light.cpp

Revision:

2:7e489126fe7a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resources/light.cpp	Tue Oct 15 12:45:46 2013 +0000
@@ -0,0 +1,62 @@
+// Light resource implementation
+
+#include "mbed.h"
+#include "nsdl_support.h"
+#include "light.h"
+
+#define LIGHT_RES_ID    "lt/0/dim"
+
+extern Serial pc;
+//PwmOut led1(LED1);
+static PwmOut led2(LED2);
+static PwmOut led3(LED3);
+//PwmOut led4(LED4);
+
+/* Only GET and PUT method allowed */
+static uint8_t light_resource_cb(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;
+    static float led_dimm = 0;
+    int led_state = 0;
+    char led_dimm_temp[4];
+
+    pc.printf("light callback\r\n");
+
+    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);
+
+        led_state = led_dimm * 100;
+        sprintf(led_dimm_temp, "%d", led_state);
+
+        coap_res_ptr->payload_len = strlen(led_dimm_temp);
+        coap_res_ptr->payload_ptr = (uint8_t*)led_dimm_temp;
+        sn_nsdl_send_coap_message(address, coap_res_ptr);
+    }
+    else if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_PUT)
+    {
+        memcpy(led_dimm_temp, (char *)received_coap_ptr->payload_ptr, received_coap_ptr->payload_len);
+
+        led_dimm_temp[received_coap_ptr->payload_len] = '\0';
+
+        led_dimm = atof(led_dimm_temp);
+        led_dimm = led_dimm/100;
+
+        //led1.write(led_dimm);
+        led2.write(led_dimm);
+        led3.write(led_dimm);
+        //led4.write(led_dimm);
+
+        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;
+}
+
+int create_light_resource(sn_nsdl_resource_info_s *resource_ptr)
+{
+    nsdl_create_dynamic_resource(resource_ptr, sizeof(LIGHT_RES_ID)-1, (uint8_t*)LIGHT_RES_ID, 0, 0, 0, &light_resource_cb, (SN_GRS_GET_ALLOWED | SN_GRS_PUT_ALLOWED));
+    return 0;
+}
\ No newline at end of file