int serial_open(serial_ctx *sctx) {
if (!sctx || strlen(sctx->dev) <= 0) { // check param validality
return -1;
}
sctx->fd = open(sctx->dev, O_RDWR | O_NOCTTY);
if (-1 == sctx->fd) { // fail to open serial port
return -2;
}
if (!isatty(sctx->fd)) { // not a tty
close(sctx->fd);
return -3;
}
// set serial io model
serial_set_io_model(sctx);
// set serial options
serial_set_opt(sctx);
if (IO_ASYNC == sctx->io_model) {
if (serial_rthread_create(sctx) != 0) {
return -4;
}
}
return 0;
}
int serial_open(struct media_if *med_inf)
{
struct serial_private *para=(struct serial_private *)med_inf->para;
if (med_inf->type==MEDIA_SERIAL||med_inf->type==MEDIA_ZIGBEE)
{
med_inf->fd=open(para->name,O_RDWR|O_NOCTTY|O_NDELAY);
PLOG("serial:%s\n",para->name );
if(med_inf->fd<=0)
{
perror("open serial");
med_inf->status=CLOSE;
return -1;
}
if(serial_set_opt(med_inf)==-1)
{
med_inf->status=CLOSE;
return -1;
}
med_inf->status=LIVE;
dev_addevent(med_inf);
}
return 0;
}
