3  * pps-ldisc.c -- PPS line discipline
18 	struct pps_device *pps;  in pps_tty_dcd_change()  local
23 	pps = pps_lookup_dev(tty);  in pps_tty_dcd_change()
28 	if (WARN_ON_ONCE(pps == NULL))  in pps_tty_dcd_change()
31 	/* Now do the PPS event report */  in pps_tty_dcd_change()
32 	pps_event(pps, &ts, active ? PPS_CAPTUREASSERT :  in pps_tty_dcd_change()
35 	dev_dbg(pps->dev, "PPS %s at %lu\n",  in pps_tty_dcd_change()
46 	struct pps_device *pps;  in pps_tty_open()  local
57 	pps = pps_register_source(&info, PPS_CAPTUREBOTH | \  in pps_tty_open()
59 	if (IS_ERR(pps)) {  in pps_tty_open()
60 		pr_err("cannot register PPS source \"%s\"\n", info.path);  in pps_tty_open()
61 		return PTR_ERR(pps);  in pps_tty_open()
63 	pps->lookup_cookie = tty;  in pps_tty_open()
72 	dev_info(pps->dev, "source \"%s\" added\n", info.path);  in pps_tty_open()
77 	pps_unregister_source(pps);  in pps_tty_open()
85 	struct pps_device *pps = pps_lookup_dev(tty);  in pps_tty_close()  local
89 	if (WARN_ON(!pps))  in pps_tty_close()
92 	dev_info(pps->dev, "removed\n");  in pps_tty_close()
93 	pps_unregister_source(pps);  in pps_tty_close()
123 		pr_err("can't register PPS line discipline\n");  in pps_tty_init()
125 		pr_info("PPS line discipline registered\n");  in pps_tty_init()
140 MODULE_DESCRIPTION("PPS TTY device driver");