File content as of revision 24:7d2ff444d6d8:

#ifndef GSMLIBRARY_H
#define GSMLIBRARY_H

#include "mbed.h"

#define TIME_CONST 1
#define SECONDS_TIMEOUT 30
#define SMS_END_CHAR "\x1A"
#define SMS_ESCAPE_CHAR "\x1A"

enum gsm_states{GSM_INITIALIZE, 
                    GSM_AT_OK,      //Make sure communication is stablished betheen fdm and gsm
                    GSM_AT_CSQ,     //Check signal strength if strenght lower than 10 keep trying
                    GSM_AT_CREG,    //Checking if phone is conected to network
                    GSM_AT_CNMI,    //Turn off incoming SMS notifications
                    GSM_AT_CMGF,    //prepare phone to send message by CMGF=1
                    GSM_READ_MSG,   //check for a new message. if so will set transmitter mode on.
                    GSM_AT_CMGS,    //input phone number by CMGS= "+phonenumber"
                    GSM_AT_SENDSMS, //write message, finish with alt+z
                    GSM_DEL_R_MSGS //delete unread messages (if present)   
                };

//GSM state machine
void gsm_tick();
bool gsm_timeOut();
void gsm_printState();
void gsm_nextStateLogic();
void gsm_mealyOutputs();

//Initialize DMA data transfer, and UART3.
void gsm_initialize();

//returns 1 for eady to send again, 0 for busy.
bool gsm_ready();

//Have the GSM send data - L = long, S = short, hh/mm/ss for time, "lat ns" for latitute, "lon we" for longitude
void gsm_send_data(float L, float Lref, float S, float Sref, int hh, int mm, int ss, float lat, char ns, float lon, char we);

//Brings state machine back to initialize state (notice this is different than initialize function)
//this will set flags to initial values and prepare gsm to work anew.
void gsm_reset();

//used for debuging purposes, it print all main registers from dma0 and uart3
void print_registers(); 

#endif