Diff: wifi.cpp

Revision:

4:030c7726c7dc

Child:

6:c16e8b17092a

diff -r 851eef47c66b -r 030c7726c7dc wifi.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wifi.cpp	Sun Apr 19 18:16:51 2015 +0000
@@ -0,0 +1,74 @@
+#include "wifi.h"
+#include "utils.h"
+
+#define BAUDR 921600
+#define BUFFER_SIZE 32
+
+Wifi::Wifi (PinName tx, PinName rx, PinName reset, PinName status,
+        const char * ssid, const char * phrase) : 
+        wifi_(tx, rx, reset, status, ssid, phrase, WPA) {    
+    //wifi_.baudr(9600); //default baudrate, will be changed asap
+    wifi_.init(); // use DHCP
+    while (!wifi_.connect()); // join the network
+    printf("IP Address is %s\n\r", wifi_.getIPAddress());
+    wifi_.setProtocol(TCP);
+    wifi_.baudr(BAUDR);
+}
+
+/*
+* Format: (int) -1 (int) -1 (int) swimmer_id
+*   many times  (int) count 3*(int) acc 3*(float)gyro
+*         (int) -1 (int) -1        
+*/
+int Wifi::sendFile(const char *fname, int i)
+{
+    char buffer[BUFFER_SIZE];
+    int temp;
+    int bytes;
+
+    FILE *f = fopen(fname, "rb");
+    if (f == NULL)
+        return -1;  
+    
+    //send swimmer id
+    temp = -1;
+    toBytes(buffer, &temp, sizeof(int));
+    toBytes(buffer+sizeof(int), &temp, sizeof(int));
+    temp = i;
+    toBytes(buffer+sizeof(int)*2, &temp, sizeof(int));
+    bufferSend(buffer, 3*sizeof(int));
+    
+    while ((bytes = fread(buffer, 1, BUFFER_SIZE, f)) != 0)
+        bufferSend(buffer, bytes);
+
+    //end of transmission
+    temp = -1;
+    toBytes(buffer, &temp, sizeof(int));
+    toBytes(buffer+sizeof(int), &temp, sizeof(int));
+    bufferSend(buffer, 2*sizeof(int));
+
+    fclose(f); 
+    return 0;
+}
+
+/*
+ * Returns 0 if no command was recieved
+ * or the command
+ */
+char Wifi::getCmd(void)
+{
+    while (!wifi_.readable() || wifi_.getc() != '#')    
+        ;
+        
+    return wifi_.getc();
+}
+
+/* ********************************
+ * private
+ * *******************************/
+void Wifi::bufferSend(char *buffer, size_t size)
+{
+    int i;
+    for (i = 0; i < size; i++)
+        wifi_.putc(buffer[i]);
+}
\ No newline at end of file