main.cpp

00001 #include "mbed.h"
00002 #include "C027.h"
00003 #include "WANDongle.h"
00004 #include "USBSerialStream.h"
00005 #include "UbloxCDMAModemInitializer.h"
00006 #include "UbloxGSMModemInitializer.h"
00007 
00008 DigitalOut mdm_activity(LED);
00009 
00010 int main() 
00011 {
00012     int led_toggle_count = 5;
00013 
00014     // the instantiation of the type, calls C027::C027
00015     C027 c027;
00016     
00017     c027.mdmPower(true,false);
00018     
00019     // enable the GPS, and connect it 
00020     // to the m3.
00021     c027.gpsPower(true, false);
00022 
00023 #if 0
00024     while(1) {
00025         mdm_activity = !mdm_activity;
00026         wait(0.2);
00027     }
00028 #else
00029     while( led_toggle_count-- > 0 )
00030     {
00031         mdm_activity = !mdm_activity;
00032         wait(0.2);
00033     }
00034 #endif
00035         
00036     // open the mdm USB port
00037     WANDongle mdmDongle;
00038     USBSerialStream mdmStream(mdmDongle.getSerial(1/* the CDC usually 0 or 1, LISA-C requires CDC1*/));
00039     USBHost* host = USBHost::getHostInst();
00040     mdmDongle.addInitializer(new UbloxCDMAModemInitializer(host));
00041     mdmDongle.addInitializer(new UbloxGSMModemInitializer(host));
00042    
00043     // open the PC serial port.
00044     Serial pc(USBTX, USBRX);
00045     pc.baud(MDMBAUD);
00046     
00047     pc.printf( "M3->USB CDC connection ready\r\n");
00048     
00049     while (1)
00050     {
00051         uint8_t buf[64];
00052         size_t len;
00053         int i;
00054         
00055         if (!mdmDongle.connected())
00056         {
00057             mdmDongle.tryConnect();
00058         }
00059         else
00060         {
00061         
00062             // transfer data from pc to modem
00063             len = mdmStream.space();
00064             if (len>0)
00065             {
00066                 if (len > sizeof(buf))
00067                     len = sizeof(buf);
00068                 for (i = 0; (i < len) && pc.readable(); )
00069                     buf[i++] = pc.getc();
00070                 if (OK == mdmStream.write(buf, i))
00071                     /* do something? */;
00072             }
00073             // transfer data from modem to pc
00074             len = mdmStream.available();
00075             if ((len>0) && pc.writeable())
00076             {
00077                 if (len > sizeof(buf))
00078                     len = sizeof(buf);
00079                 if (OK == mdmStream.read(buf, &len, len))
00080                 {
00081                     for (i = 0; (i < len); ) 
00082                     {
00083                         mdm_activity=!mdm_activity;
00084                         pc.putc(buf[i++]);
00085                     }
00086                     
00087                     // default the led to off 
00088                     mdm_activity=0;
00089                 }
00090             }
00091         }
00092     }
00093 }