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/*
Copyright 2011 Bjørn Mork <bjorn@mork.no>
License: GPLv2
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <stdarg.h>
#include <fcntl.h>
#include <errno.h>
#include <termios.h>
/* list of supported USB devices (pid:vid) */
static char *supported[] = {
"0bdb:1900", /* Ericsson Business Mobile Networks BV F3507g Mobile Broadband Module */
NULL /* list terminator */
};
static int timeout = 10; /* read timeout */
/* default values for options */
static char wwan_apn[] = ""; /* null APN may often Just Work(tm) */
static int wwan_poweroff = 1; /* power off radio when interface goes down? */
static char wwan_gpstty[] = "";
static int wwan_mode = 1; /* Radio mode 1=auto, 5=GSM, 6=UTRAN */
static int wwan_roaming_ok = 0; /* Disallow roaming by default */
static int wwan_debug = 0;
static char wwan_cfg_file[] = "/etc/default/wwan_ctl";
static int wwan_simpin = -1; /* a 4 digit decimal number between 0000 and 9999 */
/* global variables */
static struct termios restore_tios;
void dbg(const char *str, ...)
{
va_list args;
va_start(args, str);
vfprintf(stderr, str, args);
}
void fatal(const char *str, ...)
{
va_list args;
va_start(args, str);
vfprintf(stderr, str, args);
exit(2);
}
int wwan_readcfg(void)
{
return -1;
}
int wwan_checkdevice(void)
{
return -1;
}
char *wwan_getgpsport(void)
{
return "";
}
int wwan_getmgmt_fd(const char *device)
{
int fd;
struct termios tios;
fprintf(stderr, "%s(): opening \"%s\"\n", __FUNCTION__, device);
if ((fd = open(device, O_RDWR)) < 0)
fatal("%s(): failed to open '%s': %d %m\n", __FUNCTION__, device, errno);
/* FIXME: don't do any termios things if we use a cdc-wdm device (which is *not* a tty!) */
/* get current tty settings */
if (tcgetattr(fd, &tios) < 0)
if (errno = ENOTTY)
/* don't do any termios things if we use a cdc-wdm device (which is *not* a tty!) */
return fd;
else
fatal("%s(): tcgetattr: %m\n", __FUNCTION__);
/* save'em so we can restor on exit */
memcpy(&restore_tios, &tios, sizeof(restore_tios));
/* if this works for pppd, then it works for us */
tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CRTSCTS);
tios.c_cflag |= CS8 | CREAD | CLOCAL;
tios.c_iflag = IGNBRK | IGNPAR;
tios.c_oflag = 0;
tios.c_lflag = 0;
tios.c_cc[VMIN] = 1;
tios.c_cc[VTIME] = 0;
/* we don't care much, but 115k is fine */
cfsetospeed (&tios, B115200);
cfsetispeed (&tios, B115200);
while (tcsetattr(fd, TCSAFLUSH, &tios) < 0)
if (errno != EINTR)
fatal("%s(): tcsetattr: %m\n", __FUNCTION__);
return fd;
}
int wwan_verify_pin(void)
{
return -1;
}
int wwan_enable_gps(void)
{
return -1;
}
int wwan_connected(void)
{
return -1;
}
int wwan_configure_account(void)
{
return -1;
}
int wwan_power_radio_on(void)
{
return -1;
}
int wwan_connect(void)
{
return -1;
}
int wwan_disconnect(void)
{
return -1;
}
int cmd(int fd, const char *cmd, char *buf, ssize_t bufsize)
{
char *p;
ssize_t n = 0;
int ok = 0;
if (wwan_debug > 1)
fprintf(stderr, "%s() called with fd=%d, cmd=%s, buf=%p, bufsize=%d\n", __FUNCTION__, fd, cmd, buf, bufsize);
sprintf(buf, "%s\r\n", cmd);
write(fd, buf, strlen(buf));
tcdrain(fd);
while (!ok) {
p = buf + n;
n += read(fd, p, bufsize - n);
buf[n] = 0;
if (strstr(p, "OK"))
ok = 1;
else if (strstr(p, "ERROR"))
ok = -1;
}
if (wwan_debug > 1)
fprintf(stderr, "ok=%d, n=%d\n", ok, n);
return n;
}
int do_up(void)
{
return -1;
}
int do_down(void)
{
return -1;
}
int do_gps(void)
{
return -1;
}
int main(int argc, char **argv)
{
int mgmt_fd;
ssize_t c;
char buf[128];
struct termios tios, restore_tios;
/*
if (argc != 1)
fatal("usage: %s gps|start|stop\n", argv[0]);
*/
if (argc == 2)
mgmt_fd = wwan_getmgmt_fd(argv[1]);
else
mgmt_fd = wwan_getmgmt_fd("/dev/ttyACM1");
c = cmd(mgmt_fd, "ATI", buf, sizeof(buf));
fprintf(stderr, "%s", buf);
c = cmd(mgmt_fd, "AT+CPIN?", buf, sizeof(buf));
fprintf(stderr, "%s", buf);
if (strstr(buf, "+CPIN: SIM PIN")) {
if ((wwan_simpin < 0) || (wwan_simpin > 9999)) /* sane? */
fatal("SIM PIN required");
sprintf(buf, "AT+CPIN=\"%04d\"", wwan_simpin);
c = cmd(mgmt_fd, buf, buf, sizeof(buf));
fprintf(stderr, "%s", buf);
}
c = cmd(mgmt_fd, "AT+CGSM?", buf, sizeof(buf));
fprintf(stderr, "%s", buf);
c = cmd(mgmt_fd, "AT+GGSM?", buf, sizeof(buf));
fprintf(stderr, "%s", buf);
close (mgmt_fd);
return 0;
}
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