static void
uart_pps_init(struct uart_softc *sc)
{
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
ctx = device_get_sysctl_ctx(sc->sc_dev);
tree = device_get_sysctl_tree(sc->sc_dev);
/*
* The historical default for pps capture mode is either DCD or CTS,
* depending on the UART_PPS_ON_CTS kernel option. Start with that,
* then try to fetch the tunable that overrides the mode for all uart
* devices, then try to fetch the sysctl-tunable that overrides the mode
* for one specific device.
*/
#ifdef UART_PPS_ON_CTS
sc->sc_pps_mode = UART_PPS_CTS;
#else
sc->sc_pps_mode = UART_PPS_DCD;
#endif
TUNABLE_INT_FETCH("hw.uart.pps_mode", &sc->sc_pps_mode);
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "pps_mode",
CTLTYPE_INT | CTLFLAG_RWTUN, sc, 0, uart_pps_mode_sysctl, "I",
"pulse mode: 0/1/2=disabled/CTS/DCD; "
"add 0x10 to invert, 0x20 for narrow pulse");
if (!uart_pps_mode_valid(sc->sc_pps_mode)) {
device_printf(sc->sc_dev,
"Invalid pps_mode 0x%02x configured; disabling PPS capture\n",
sc->sc_pps_mode);
sc->sc_pps_mode = UART_PPS_DISABLED;
} else if (bootverbose) {
uart_pps_print_mode(sc);
}
sc->sc_pps.ppscap = PPS_CAPTUREBOTH;
sc->sc_pps.driver_mtx = uart_tty_getlock(sc);
sc->sc_pps.driver_abi = PPS_ABI_VERSION;
pps_init_abi(&sc->sc_pps);
}
static int
ucom_attach_tty(struct ucom_super_softc *ssc, struct ucom_softc *sc)
{
struct tty *tp;
char buf[32]; /* temporary TTY device name buffer */
tp = tty_alloc_mutex(&ucom_class, sc, sc->sc_mtx);
if (tp == NULL)
return (ENOMEM);
/* Check if the client has a custom TTY name */
buf[0] = '\0';
if (sc->sc_callback->ucom_tty_name) {
sc->sc_callback->ucom_tty_name(sc, buf,
sizeof(buf), ssc->sc_unit, sc->sc_subunit);
}
if (buf[0] == 0) {
/* Use default TTY name */
if (ssc->sc_subunits > 1) {
/* multiple modems in one */
snprintf(buf, sizeof(buf), UCOM_TTY_PREFIX "%u.%u",
ssc->sc_unit, sc->sc_subunit);
} else {
/* single modem */
snprintf(buf, sizeof(buf), UCOM_TTY_PREFIX "%u",
ssc->sc_unit);
}
}
tty_makedev(tp, NULL, "%s", buf);
sc->sc_tty = tp;
sc->sc_pps.ppscap = PPS_CAPTUREBOTH;
sc->sc_pps.driver_abi = PPS_ABI_VERSION;
sc->sc_pps.driver_mtx = sc->sc_mtx;
pps_init_abi(&sc->sc_pps);
DPRINTF("ttycreate: %s\n", buf);
/* Check if this device should be a console */
if ((ucom_cons_softc == NULL) &&
(ssc->sc_unit == ucom_cons_unit) &&
(sc->sc_subunit == ucom_cons_subunit)) {
DPRINTF("unit %d subunit %d is console",
ssc->sc_unit, sc->sc_subunit);
ucom_cons_softc = sc;
tty_init_console(tp, ucom_cons_baud);
UCOM_MTX_LOCK(ucom_cons_softc);
ucom_cons_rx_low = 0;
ucom_cons_rx_high = 0;
ucom_cons_tx_low = 0;
ucom_cons_tx_high = 0;
sc->sc_flag |= UCOM_FLAG_CONSOLE;
ucom_open(ucom_cons_softc->sc_tty);
ucom_param(ucom_cons_softc->sc_tty, &tp->t_termios_init_in);
UCOM_MTX_UNLOCK(ucom_cons_softc);
}
return (0);
}
