File content as of revision 52:8071747a7cb3:

#pragma once 

#include "mbed.h"
#include <stdarg.h>

#include "Pipe.h"
#include "SerialPipe.h"

#ifdef TARGET_UBLOX_C027
 // if we detect the C027 platform we will assign the 
 // default pinname and baudrate in the constructor 
 // this helper macro will be used. 
 #define _C027DEFAULT(name) = name
#else
 #define _C027DEFAULT(name)
#endif

/** basic modem parser class 
*/
class MDMParser
{
public:
    //! Constructor 
    MDMParser();
    //! get static instance
    static MDMParser* getInstance() { return inst; };
    
    // ----------------------------------------------------------------
    // Types 
    // ----------------------------------------------------------------
    //! MT Device Types 
    typedef enum { DEV_UNKNOWN, DEV_SARA_G350, DEV_LISA_U200, DEV_LISA_C200 } Dev; 
    //! SIM Status
    typedef enum { SIM_UNKNOWN, SIM_PIN, SIM_READY } Sim;
    //! SIM Status
    typedef enum { LPM_DISABLED, LPM_ENABLED, LPM_ACTIVE, LPM_SLEEP } Lpm; 
    //! Device status
    typedef struct { 
        Dev dev;            //!< Device Type
        Lpm lpm;            //!< Power Saving 
        Sim sim;            //!< SIM Card Status
        char ccid[20+1];    //!< Integrated Circuit Card ID
        char imsi[15+1];    //!< International Mobile Station Identity
        char imei[15+1];    //!< International Mobile Equipment Identity
        char meid[18+1];    //!< Mobile Equipment IDentifier
        char manu[16];      //!< Manufacturer (u-blox)
        char model[16];     //!< Model Name (LISA-U200, LISA-C200 or SARA-G350)
        char ver[16];       //!< Software Version
    } DevStatus;
    //! Registration Status
    typedef enum { REG_UNKNOWN, REG_DENIED, REG_NONE, REG_HOME, REG_ROAMING } Reg; 
    //! Access Technology
    typedef enum { ACT_UNKNOWN, ACT_GSM, ACT_EDGE, ACT_UTRAN, ACT_CDMA } AcT; 
    //! Network Status
    typedef struct { 
        Reg reg;        //!< Registration Status
        AcT act;        //!< Access Technology
        int rssi;       //!< Received Signal Strength Indication (in dBm, range -113..-53)
        char opr[16+1]; //!< Operator Name
        char num[32];   //!< Mobile Directory Number
    } NetStatus;
    //! An IP v4 address
    typedef uint32_t IP;
    #define NOIP ((MDMParser::IP)0) //!< No IP address
    // ip number formating and conversion
    #define IPSTR           "%d.%d.%d.%d"
    #define IPNUM(ip)       ((ip)>>24)&0xff, \
                            ((ip)>>16)&0xff, \
                            ((ip)>> 8)&0xff, \
                            ((ip)>> 0)&0xff
    #define IPADR(a,b,c,d) ((((IP)(a))<<24) | \
                            (((IP)(b))<<16) | \
                            (((IP)(c))<< 8) | \
                            (((IP)(d))<< 0))

    
    // ----------------------------------------------------------------
    // Data Connection (GPRS)
    // ----------------------------------------------------------------
    
    /** register (Attach) the MT to the GPRS service. 
        \param pin  a optional pin of the SIM card
        \param status an optional struture to with device information 
        \return true if successful, false otherwise
    */
    bool init(const char* pin = NULL, DevStatus* status = NULL);
    
    /** check if the network is available 
        \param status an optional structure to with network information 
        \return true if successful and connected to network, false otherwise
    */
    bool checkNetStatus(NetStatus* status = NULL);
    
    /** Power off the MT, This function has to be called prior to 
        switching off the supply. 
        \return true if successfully, false otherwise
    */ 
    bool powerOff(void);
    
    // ----------------------------------------------------------------
    // Data Connection (GPRS)
    // ----------------------------------------------------------------
    
    /** register (Attach) the MT to the GPRS service. 
        \param apn  the of the network provider e.g. "internet" or "apn.provider.com"
        \param user is the user name text string for the authentication phase
        \param password is the password text string for the authentication phase
        \return the ip that is assigned 
    */
    MDMParser::IP join(const char* apn = NULL, const char* user = NULL, const char* password = NULL);
    
    /** deregister (detach) the MT from the GPRS service.
        \return true if successful, false otherwise
    */
    bool disconnect(void);
    
    /** Translates a domain name to an IP address
        \param host the domain name to translate e.g. "u-blox.com"
        \return the IP if successful, 0 otherwise
    */
    MDMParser::IP gethostbyname(const char* host);
    
    // ----------------------------------------------------------------
    // Sockets
    // ----------------------------------------------------------------
    
    //! Type of IP protocol 
    typedef enum { IPPROTO_TCP, IPPROTO_UDP } IpProtocol; 
    
    //! Socket error return codes
    #define SOCKET_ERROR -1
    
    /** Create a socket for a ip protocol
        \param ipproto the protocol (UDP or TCP) 
        \return the socket handle if successful or SOCKET_ERROR on failure 
    */
    int socketSocket(IpProtocol ipproto);
    
    /** make a socket connection
        \param socket the socket handle
        \param host the domain name to connect e.g. "u-blox.com"
        \param port the port to connect
        \return true if successfully, false otherwise
    */
    bool socketConnect(int socket, const char* host, int port);
        
    /** make a socket connection
        \param socket the socket handle
        \return true if connected, false otherwise
    */
    bool socketIsConnected(int socket);
     
    /** Get the number of bytes pending for reading for this socket
        \param socket the socket handle
        \param timeout_ms -1 blocking, else non blocking timeout in ms
        \return 0 if successful or SOCKET_ERROR on failure 
    */
    bool socketSetBlocking(int socket, unsigned int timeout_ms);
    
    /** Write socket data 
        \param socket the socket handle
        \param buf the buffer to write
        \param len the size of the buffer to write
        \return the size written or SOCKET_ERROR on failure 
    */
    int socketSend(int socket, const char * buf, int len);
    
    /** Write socket data to a IP
        \param socket the socket handle
        \param ip the ip to send to
        \param port the port to send to
        \param buf the buffer to write
        \param len the size of the buffer to write
        \return the size written or SOCKET_ERROR on failure 
    */
    int socketSendTo(int socket, IP ip, int port, const char * buf, int len);
    
    /** Get the number of bytes pending for reading for this socket
        \param socket the socket handle
        \return the number of bytes pending or SOCKET_ERROR on failure 
    */
    int socketReadable(int socket);
    
    /** Read this socket
        \param socket the socket handle
        \param buf the buffer to read into
        \param len the size of the buffer to read into
        \return the number of bytes read or SOCKET_ERROR on failure 
    */
    int socketRecv(int socket, char* buf, int len);
    
    /** Read from this socket
        \param socket the socket handle
        \param buf the buffer to read into
        \param len the size of the buffer to read into
        \param ip the ip of host where the data originates from
        \return the number of bytes read or SOCKET_ERROR on failure 
    */
    int socketRecvFrom(int socket, char* buf, int len, IP* ip);
    
    /** Close a connectied socket (that was connected with #socketConnect)
        \param socket the socket handle
        \return true if successfully, false otherwise
    */    
    bool socketClose(int socket);
    
    /** Free the socket (that was allocated before by #socketSocket)
        \param socket the socket handle
        \return true if successfully, false otherwise
    */    
    bool socketFree(int socket);
        
    // ----------------------------------------------------------------
    // SMS Short Message Service
    // ----------------------------------------------------------------
    
    /** count the number of sms in the device and optionally return a 
        list with indexes from the storage locations in the device.
        \param stat what type of messages you can use use 
                    "REC UNREAD", "REC READ", "STO UNSENT", "STO SENT", "ALL"
        \param ix   list where to save the storage positions
        \param num  number of elements in the list 
        \return the number of messages, this can be bigger than num, -1 on failure
    */
    int smsList(const char* stat = "ALL", int* ix = NULL, int num = 0);
    
    /** Read a Message from a storage position
        \param ix the storage position to read
        \param num the originator address (~16 chars)
        \param buf a buffer where to save the sm
        \param len the length of the sm
        \return true if successful, false otherwise
    */
    bool smsRead(int ix, char* num, char* buf, int len);
    
    /** Send a message to a recipient 
        \param ix the storage position to delete
        \return true if successful, false otherwise
    */
    bool smsDelete(int ix);
    
    /** Send a message to a recipient 
        \param num the phone number of the recipient
        \param buf the content of the message to sent
        \return true if successful, false otherwise
    */
    bool smsSend(const char* num, const char* buf);
    
    // ----------------------------------------------------------------
    // USSD Unstructured Supplementary Service Data
    // ----------------------------------------------------------------
    
    /** Read a Message from a storage position
        \param cmd the ussd command to send e.g "*#06#"
        \param buf a buffer where to save the reply
        \return true if successful, false otherwise
    */
    bool ussdCommand(const char* cmd, char* buf);
    
    // ----------------------------------------------------------------
    // Parseing
    // ----------------------------------------------------------------
    
    enum { 
        // waitFinalResp Responses
        NOT_FOUND     =  0,
        WAIT          = -1, // TIMEOUT
        RESP_OK       = -2, 
        RESP_ERROR    = -3,
        RESP_PROMPT   = -4,
    
        // getLine Responses
        #define LENGTH(x)  (x & 0x00FFFF) //!< extract/mask the length
        #define TYPE(x)    (x & 0xFF0000) //!< extract/mask the type
        
        TYPE_UNKNOWN    = 0x000000,
        TYPE_OK         = 0x110000,
        TYPE_ERROR      = 0x120000,
        TYPE_RING       = 0x210000,
        TYPE_CONNECT    = 0x220000,
        TYPE_NOCARRIER  = 0x230000,
        TYPE_NODIALTONE = 0x240000,
        TYPE_BUSY       = 0x250000,
        TYPE_NOANSWER   = 0x260000,
        TYPE_PROMPT     = 0x300000,
        TYPE_PLUS       = 0x400000,
        TYPE_TEXT       = 0x500000
    };
    
    /** Get a line from the physical interface. This function need 
        to be implemented in a inherited class. Usually just calls 
        #_getLine on the rx buffer pipe. 
            
        \param buf the buffer to store it
        \param buf size of the buffer
        \return type and length if something was found, 
                WAIT if not enough data is available
                NOT_FOUND if nothing was found
    */ 
    virtual int getLine(char* buf, int len) = 0; 
    
    /** Write data to the device 
        \param buf the buffer to write
        \param buf size of the buffer to write
        \return bytes written
    */
    virtual int send(const char* buf, int len);
    
    /** Write formated date to the physical interface (printf style)
        \param fmt the format string
        \param .. variable arguments to be formated
        \return bytes written
    */
    int sendFormated(const char* format, ...);
    
    /** callback function for #waitFinalResp with void* as argument
        \param type the #getLine response
        \param buf the parsed line
        \param len the size of the parsed line
        \param param the optional argument passed to #waitFinalResp
        \return WAIT if processing should continue, 
                any other value aborts #waitFinalResp and this retunr value retuned
    */
    typedef int (*_CALLBACKPTR)(int type, const char* buf, int len, void* param);
    
    /** Wait for a final respons
        \param cb the optional callback function
        \param param the optional callback function parameter
        \param timeout_ms the timeout to wait 
    */
    int waitFinalResp(_CALLBACKPTR cb = NULL, 
                      void* param = NULL, 
                      int timeout_ms = 5000);

    /** template version of #waitFinalResp when using callbacks, 
        This template will allow the compiler to do type cheking but 
        internally symply casts the arguments and call the (void*) 
        version of #waitFinalResp.
        \sa waitFinalResp
    */ 
    template<class T>
    int waitFinalResp(int (*cb)(int type, const char* buf, int len, 
                      T* param), 
                      T* param, int timeout_ms = 5000) 
    {
        return waitFinalResp((_CALLBACKPTR)cb, (void*)param, timeout_ms);
    }
    
protected:
    /** Write bytes to the physical interface. This function should be 
        implemented in a inherited class.
        \param buf the buffer to write
        \param buf size of the buffer to write
        \return bytes written
    */
    virtual int _send(const void* buf, int len) = 0;

    /** Helper: Parse a line from the receiving buffered pipe
        \param pipe the receiving buffer pipe 
        \param buf the parsed line
        \param len the size of the parsed line
        \return type and length if something was found, 
                WAIT if not enough data is available
                NOT_FOUND if nothing was found
    */
    static int _getLine(Pipe<char>* pipe, char* buffer, int length);
    
    /** Helper: Parse a match from the pipe
        \param pipe the buffered pipe
        \param number of bytes to parse at maximum, 
        \param sta the starting string, NULL if none
        \param end the terminating string, NULL if none
        \return size of parsed match 
    */   
    static int _parseMatch(Pipe<char>* pipe, int len, const char* sta, const char* end);
    
    /** Helper: Parse a match from the pipe
        \param pipe the buffered pipe
        \param number of bytes to parse at maximum, 
        \param fmt the formating string (%d any number, %c any char of last %d len)
        \return size of parsed match
    */   
    static int _parseFormated(Pipe<char>* pipe, int len, const char* fmt);

protected:
    // parsing callbacks for different AT commands and their parameter arguments
    static int _cbString(int type, const char* buf, int len, char* str);
    static int _cbInt(int type, const char* buf, int len, int* val);
    // device
    static int _cbATI(int type, const char* buf, int len, Dev* dev);
    static int _cbCPIN(int type, const char* buf, int len, Sim* sim);
    static int _cbCCID(int type, const char* buf, int len, char* ccid);
    // network 
    static int _cbCSQ(int type, const char* buf, int len, int* rssi);
    static int _cbCOPS(int type, const char* buf, int len, NetStatus* status);
    static int _cbCNUM(int type, const char* buf, int len, char* num);
    static int _cbCGATT(int type, const char* buf, int len, int* state);
    // sockets
    static int _cbCMIP(int type, const char* buf, int len, IP* ip);
    static int _cbUPSND(int type, const char* buf, int len, int* act);
    static int _cbUPSND(int type, const char* buf, int len, IP* ip);
    static int _cbUDNSRN(int type, const char* buf, int len, IP* ip);
    static int _cbUSOCR(int type, const char* buf, int len, int* socket);
    static int _cbUSORD(int type, const char* buf, int len, char* out);
    typedef struct { char* buf; IP ip; int port; } USORFparam;
    static int _cbUSORF(int type, const char* buf, int len, USORFparam* param);
    typedef struct { char* buf; char* num; } CMGRparam;
    static int _cbCUSD(int type, const char* buf, int len, char* buf);
    // sms
    typedef struct { int* ix; int num; } CMGLparam;
    static int _cbCMGL(int type, const char* buf, int len, CMGLparam* param);
    static int _cbCMGR(int type, const char* buf, int len, CMGRparam* param);
    // variables
    DevStatus   _dev; //!< collected device information
    NetStatus   _net; //!< collected network information 
    IP          _ip;  //!< assigned ip address
    // management struture for sockets
    typedef enum { SOCK_FREE, SOCK_CREATED, SOCK_CONNECTED } SockState;
    typedef struct { SockState state; int pending; unsigned int timeout_ms; } SockCtrl;
    SockCtrl _sockets[16];
    static MDMParser* inst;
};

// -----------------------------------------------------------------------

/** modem class which uses a serial port 
    as physical interface. 
*/
class MDMSerial :  public SerialPipe, public MDMParser
{
public: 
    /** Constructor
    
        \param tx is the serial ports transmit pin (modem to CPU)
        \param rx is the serial ports receive pin (CPU to modem)
        \param baudrate the baudrate of the modem use 115200
        \param rts is the serial ports ready to send pin (CPU to modem) 
               this pin is optional 
        \param cts is the serial ports clear to send pin (modem to CPU) 
               this pin is optional, but required for power saving to be enabled
        \param rxSize the size of the serial rx buffer
        \param txSize the size of the serial tx buffer
    */
    MDMSerial(PinName tx    _C027DEFAULT(MDMTXD), 
              PinName rx    _C027DEFAULT(MDMRXD), 
              int baudrate  _C027DEFAULT(MDMBAUD),
 #if DEVICE_SERIAL_FC
              PinName rts   _C027DEFAULT(MDMRTS), 
              PinName cts   _C027DEFAULT(MDMCTS),
 #endif
              int rxSize    = 256 , 
              int txSize    = 128 );
    /** Get a line from the physical interface. 
        \param buf the buffer to store it
        \param buf size of the buffer
        \return type and length if something was found, 
                WAIT if not enough data is available
                NOT_FOUND if nothing was found
    */ 
    virtual int getLine(char* buffer, int length);
protected:
    /** Write bytes to the physical interface.
        \param buf the buffer to write
        \param buf size of the buffer to write
        \return bytes written
    */
    virtual int _send(const void* buf, int len);
};

// -----------------------------------------------------------------------

//#define HAVE_MDMUSB
#ifdef HAVE_MDMUSB
class MDMUsb :  /*public UsbSerial,*/ public MDMParser
{
public: 
    MDMUsb(void);
    virtual int getLine(char* buffer, int length);
protected:
    virtual int _send(const void* buf, int len);
};
#endif