#ifndef foomodemhfoo
#define foomodemhfoo

#include "buffio.h"

enum modem_state {
    MODEM_STATE_INIT,
    MODEM_STATE_CALLER_NUMBER_EXPECT,
    MODEM_STATE_CALLER_NUMBER,
    MODEM_STATE_RING_EXPECT,
    MODEM_STATE_RING,
    MODEM_STATE_ANSWER,
    MODEM_STATE_VTXVRX,
    MODEM_STATE_CONNECTION,
    MODEM_STATE_CONNECTION_SHBUF,
    MODEM_STATE_DONE
};

#define MODEM_BUF_LEN (10*1024)

struct modem {
    char *dev;

    struct buffio *buffio;
    
    enum modem_state state;
    int command_index;

    pid_t child_pid;

    struct timeval timeout;

    int dle_flag;
};

struct modem *modem_open(const char *dev);
void modem_close(struct modem *m);

#endif