static int
xrpu_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *pr)
{
struct softc *sc = dev->si_drv1;
int i, error;
if (sc->mode == TIMECOUNTER) {
i = dev2pps(dev);
if (i < 0 || i >= XRPU_MAX_PPS)
return ENODEV;
error = pps_ioctl(cmd, arg, &sc->pps[i]);
return (error);
}
if (cmd == XRPU_IOC_TIMECOUNTING) {
struct xrpu_timecounting *xt = (struct xrpu_timecounting *)arg;
/* Name SHALL be zero terminated */
xt->xt_name[sizeof xt->xt_name - 1] = '\0';
i = strlen(xt->xt_name);
sc->tc.tc_name = (char *)malloc(i + 1, M_XRPU, M_WAITOK);
strcpy(sc->tc.tc_name, xt->xt_name);
sc->tc.tc_frequency = xt->xt_frequency;
sc->tc.tc_get_timecount = xrpu_get_timecount;
sc->tc.tc_poll_pps = xrpu_poll_pps;
sc->tc.tc_priv = sc;
sc->tc.tc_counter_mask = xt->xt_mask;
sc->trigger = sc->virbase62 + xt->xt_addr_trigger;
sc->latch = sc->virbase62 + xt->xt_addr_latch;
for (i = 0; i < XRPU_MAX_PPS; i++) {
if (xt->xt_pps[i].xt_addr_assert == 0
&& xt->xt_pps[i].xt_addr_clear == 0)
continue;
make_dev(&xrpu_cdevsw, (i+1)<<16,
UID_ROOT, GID_WHEEL, 0600, "xpps%d", i);
sc->pps[i].ppscap = 0;
if (xt->xt_pps[i].xt_addr_assert) {
sc->assert[i] = sc->virbase62 + xt->xt_pps[i].xt_addr_assert;
sc->pps[i].ppscap |= PPS_CAPTUREASSERT;
}
if (xt->xt_pps[i].xt_addr_clear) {
sc->clear[i] = sc->virbase62 + xt->xt_pps[i].xt_addr_clear;
sc->pps[i].ppscap |= PPS_CAPTURECLEAR;
}
pps_init(&sc->pps[i]);
}
sc->mode = TIMECOUNTER;
init_timecounter(&sc->tc);
return (0);
}
error = ENOTTY;
return (error);
}
/*
* Set up the PPS cdev and the the kernel timepps stuff.
*
* Note that this routine cannot touch the hardware, because bus space resources
* are not fully set up yet when this is called.
*/
static void
am335x_dmtimer_pps_init(device_t dev, struct am335x_dmtimer_softc *sc)
{
int unit;
if (am335x_dmtimer_pps_module == -1)
am335x_dmtimer_pps_find();
/* No PPS input */
if (am335x_dmtimer_pps_module == 0)
return;
/* Not PPS-enabled input */
if ((am335x_dmtimer_pps_module > 0) &&
(!ti_hwmods_contains(dev, am335x_dmtimer_pps_hwmod)))
return;
/*
* Indicate our capabilities (pretty much just capture of either edge).
* Have the kernel init its part of the pps_state struct and add its
* capabilities.
*/
sc->pps.ppscap = PPS_CAPTUREBOTH;
pps_init(&sc->pps);
/*
* Set up to capture the PPS via timecounter polling, and init the task
* that does deferred pps_event() processing after capture.
*/
sc->func.tc.tc_poll_pps = am335x_dmtimer_tc_poll_pps;
TASK_INIT(&sc->pps_task, 0, am335x_dmtimer_process_pps_event, sc);
/* Create the PPS cdev. */
unit = device_get_unit(dev);
sc->pps_cdev = make_dev(&am335x_dmtimer_pps_cdevsw, unit,
UID_ROOT, GID_WHEEL, 0600, PPS_CDEV_NAME);
sc->pps_cdev->si_drv1 = sc;
device_printf(dev, "Using DMTimer%d for PPS device /dev/%s%d\n",
am335x_dmtimer_pps_module, PPS_CDEV_NAME, unit);
}
/*
* Set up the PPS cdev and the the kernel timepps stuff.
*
* Note that this routine cannot touch the hardware, because bus space resources
* are not fully set up yet when this is called.
*/
static int
am335x_dmtimer_pps_init(device_t dev, struct am335x_dmtimer_softc *sc)
{
int i, timer_num, unit;
unsigned int padstate;
const char * padmux;
struct padinfo {
char * ballname;
char * muxname;
int timer_num;
} padinfo[] = {
{"GPMC_ADVn_ALE", "timer4", 4},
{"GPMC_BEn0_CLE", "timer5", 5},
{"GPMC_WEn", "timer6", 6},
{"GPMC_OEn_REn", "timer7", 7},
};
/*
* Figure out which pin the user has set up for pps. We'll use the
* first timer that has an external caputure pin configured as input.
*
* XXX The hieroglyphic "(padstate & (0x01 << 5)))" checks that the pin
* is configured for input. The right symbolic values aren't exported
* yet from ti_scm.h.
*/
timer_num = 0;
for (i = 0; i < nitems(padinfo) && timer_num == 0; ++i) {
if (ti_scm_padconf_get(padinfo[i].ballname, &padmux,
&padstate) == 0) {
if (strcasecmp(padinfo[i].muxname, padmux) == 0 &&
(padstate & (0x01 << 5)))
timer_num = padinfo[i].timer_num;
}
}
if (timer_num == 0) {
device_printf(dev, "No DMTimer found with capture pin "
"configured as input; PPS driver disabled.\n");
return (DEFAULT_TC_TIMER);
}
/*
* Indicate our capabilities (pretty much just capture of either edge).
* Have the kernel init its part of the pps_state struct and add its
* capabilities.
*/
sc->pps.ppscap = PPS_CAPTUREBOTH;
pps_init(&sc->pps);
/*
* Set up to capture the PPS via timecounter polling, and init the task
* that does deferred pps_event() processing after capture.
*/
sc->tc.tc_poll_pps = am335x_dmtimer_tc_poll_pps;
TASK_INIT(&sc->pps_task, 0, am335x_dmtimer_process_pps_event, sc);
/* Create the PPS cdev. */
unit = device_get_unit(dev);
sc->pps_cdev = make_dev(&am335x_dmtimer_pps_cdevsw, unit,
UID_ROOT, GID_WHEEL, 0600, PPS_CDEV_NAME "%d", unit);
sc->pps_cdev->si_drv1 = sc;
device_printf(dev, "Using DMTimer%d for PPS device /dev/%s%d\n",
timer_num, PPS_CDEV_NAME, unit);
return (timer_num);
}
int
ucomopen(dev_t dev, int flag, int mode, struct lwp *l)
{
int unit = UCOMUNIT(dev);
usbd_status err;
struct ucom_softc *sc = device_lookup_private(&ucom_cd, unit);
struct ucom_buffer *ub;
struct tty *tp;
int s, i;
int error;
if (sc == NULL)
return (ENXIO);
if (sc->sc_dying)
return (EIO);
if (!device_is_active(sc->sc_dev))
return (ENXIO);
tp = sc->sc_tty;
DPRINTF(("ucomopen: unit=%d, tp=%p\n", unit, tp));
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
s = spltty();
/*
* Do the following iff this is a first open.
*/
while (sc->sc_opening)
tsleep(&sc->sc_opening, PRIBIO, "ucomop", 0);
if (sc->sc_dying) {
splx(s);
return (EIO);
}
sc->sc_opening = 1;
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
struct termios t;
tp->t_dev = dev;
if (sc->sc_methods->ucom_open != NULL) {
error = sc->sc_methods->ucom_open(sc->sc_parent,
sc->sc_portno);
if (error) {
ucom_cleanup(sc);
sc->sc_opening = 0;
wakeup(&sc->sc_opening);
splx(s);
return (error);
}
}
ucom_status_change(sc);
/* Clear PPS capture state on first open. */
mutex_spin_enter(&timecounter_lock);
memset(&sc->sc_pps_state, 0, sizeof(sc->sc_pps_state));
sc->sc_pps_state.ppscap = PPS_CAPTUREASSERT | PPS_CAPTURECLEAR;
pps_init(&sc->sc_pps_state);
mutex_spin_exit(&timecounter_lock);
/*
* Initialize the termios status to the defaults. Add in the
* sticky bits from TIOCSFLAGS.
*/
t.c_ispeed = 0;
t.c_ospeed = TTYDEF_SPEED;
t.c_cflag = TTYDEF_CFLAG;
if (ISSET(sc->sc_swflags, TIOCFLAG_CLOCAL))
SET(t.c_cflag, CLOCAL);
if (ISSET(sc->sc_swflags, TIOCFLAG_CRTSCTS))
SET(t.c_cflag, CRTSCTS);
if (ISSET(sc->sc_swflags, TIOCFLAG_MDMBUF))
SET(t.c_cflag, MDMBUF);
/* Make sure ucomparam() will do something. */
tp->t_ospeed = 0;
(void) ucomparam(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
/*
* Turn on DTR. We must always do this, even if carrier is not
* present, because otherwise we'd have to use TIOCSDTR
* immediately after setting CLOCAL, which applications do not
* expect. We always assert DTR while the device is open
* unless explicitly requested to deassert it. Ditto RTS.
*/
ucom_dtr(sc, 1);
ucom_rts(sc, 1);
DPRINTF(("ucomopen: open pipes in=%d out=%d\n",
sc->sc_bulkin_no, sc->sc_bulkout_no));
/* Open the bulk pipes */
err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin_no,
USBD_EXCLUSIVE_USE, &sc->sc_bulkin_pipe);
if (err) {
DPRINTF(("%s: open bulk in error (addr %d), err=%s\n",
device_xname(sc->sc_dev), sc->sc_bulkin_no,
usbd_errstr(err)));
error = EIO;
goto fail_0;
}
err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkout_no,
USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe);
if (err) {
DPRINTF(("%s: open bulk out error (addr %d), err=%s\n",
device_xname(sc->sc_dev), sc->sc_bulkout_no,
usbd_errstr(err)));
error = EIO;
goto fail_1;
}
sc->sc_rx_unblock = 0;
sc->sc_rx_stopped = 0;
sc->sc_tx_stopped = 0;
memset(sc->sc_ibuff, 0, sizeof(sc->sc_ibuff));
memset(sc->sc_obuff, 0, sizeof(sc->sc_obuff));
SIMPLEQ_INIT(&sc->sc_ibuff_empty);
SIMPLEQ_INIT(&sc->sc_ibuff_full);
SIMPLEQ_INIT(&sc->sc_obuff_free);
SIMPLEQ_INIT(&sc->sc_obuff_full);
/* Allocate input buffers */
for (ub = &sc->sc_ibuff[0]; ub != &sc->sc_ibuff[UCOM_IN_BUFFS];
ub++) {
ub->ub_xfer = usbd_alloc_xfer(sc->sc_udev);
if (ub->ub_xfer == NULL) {
error = ENOMEM;
goto fail_2;
}
ub->ub_data = usbd_alloc_buffer(ub->ub_xfer,
sc->sc_ibufsizepad);
if (ub->ub_data == NULL) {
error = ENOMEM;
goto fail_2;
}
if (ucomsubmitread(sc, ub) != USBD_NORMAL_COMPLETION) {
error = EIO;
goto fail_2;
}
}
for (ub = &sc->sc_obuff[0]; ub != &sc->sc_obuff[UCOM_OUT_BUFFS];
ub++) {
ub->ub_xfer = usbd_alloc_xfer(sc->sc_udev);
if (ub->ub_xfer == NULL) {
error = ENOMEM;
goto fail_2;
}
ub->ub_data = usbd_alloc_buffer(ub->ub_xfer,
sc->sc_obufsize);
if (ub->ub_data == NULL) {
error = ENOMEM;
goto fail_2;
}
SIMPLEQ_INSERT_TAIL(&sc->sc_obuff_free, ub, ub_link);
}
}
sc->sc_opening = 0;
wakeup(&sc->sc_opening);
splx(s);
error = ttyopen(tp, UCOMDIALOUT(dev), ISSET(flag, O_NONBLOCK));
if (error)
goto bad;
error = (*tp->t_linesw->l_open)(dev, tp);
if (error)
goto bad;
return (0);
fail_2:
usbd_abort_pipe(sc->sc_bulkin_pipe);
for (i = 0; i < UCOM_IN_BUFFS; i++) {
if (sc->sc_ibuff[i].ub_xfer != NULL) {
usbd_free_xfer(sc->sc_ibuff[i].ub_xfer);
sc->sc_ibuff[i].ub_xfer = NULL;
sc->sc_ibuff[i].ub_data = NULL;
}
}
usbd_abort_pipe(sc->sc_bulkout_pipe);
for (i = 0; i < UCOM_OUT_BUFFS; i++) {
if (sc->sc_obuff[i].ub_xfer != NULL) {
usbd_free_xfer(sc->sc_obuff[i].ub_xfer);
sc->sc_obuff[i].ub_xfer = NULL;
sc->sc_obuff[i].ub_data = NULL;
}
}
usbd_close_pipe(sc->sc_bulkout_pipe);
sc->sc_bulkout_pipe = NULL;
fail_1:
usbd_close_pipe(sc->sc_bulkin_pipe);
sc->sc_bulkin_pipe = NULL;
fail_0:
sc->sc_opening = 0;
wakeup(&sc->sc_opening);
splx(s);
return (error);
bad:
s = spltty();
CLR(tp->t_state, TS_BUSY);
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
/*
* We failed to open the device, and nobody else had it opened.
* Clean up the state as appropriate.
*/
ucom_cleanup(sc);
}
splx(s);
return (error);
}
int
gtmpscopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct gtmpsc_softc *sc;
int unit = GTMPSCUNIT(dev);
struct tty *tp;
int s;
int error;
sc = device_lookup_private(>mpsc_cd, unit);
if (!sc)
return ENXIO;
#ifdef KGDB
/*
* If this is the kgdb port, no other use is permitted.
*/
if (sc->sc_flags & GTMPSC_KGDB)
return EBUSY;
#endif
tp = sc->sc_tty;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return EBUSY;
s = spltty();
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
struct termios t;
tp->t_dev = dev;
mutex_spin_enter(&sc->sc_lock);
/* Turn on interrupts. */
sdma_imask |= SDMA_INTR_RXBUF(sc->sc_unit);
gt_sdma_imask(device_parent(sc->sc_dev), sdma_imask);
/* Clear PPS capture state on first open. */
mutex_spin_enter(&timecounter_lock);
memset(&sc->sc_pps_state, 0, sizeof(sc->sc_pps_state));
sc->sc_pps_state.ppscap = PPS_CAPTUREASSERT | PPS_CAPTURECLEAR;
pps_init(&sc->sc_pps_state);
mutex_spin_exit(&timecounter_lock);
mutex_spin_exit(&sc->sc_lock);
if (sc->sc_flags & GTMPSC_CONSOLE) {
t.c_ospeed = sc->sc_baudrate;
t.c_cflag = sc->sc_cflag;
} else {
t.c_ospeed = TTYDEF_SPEED;
t.c_cflag = TTYDEF_CFLAG;
}
t.c_ispeed = t.c_ospeed;
/* Make sure gtmpscparam() will do something. */
tp->t_ospeed = 0;
(void) gtmpscparam(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
mutex_spin_enter(&sc->sc_lock);
/* Clear the input/output ring */
sc->sc_rcvcnt = 0;
sc->sc_roffset = 0;
sc->sc_rcvrx = 0;
sc->sc_rcvdrx = 0;
sc->sc_nexttx = 0;
sc->sc_lasttx = 0;
/*
* enable SDMA receive
*/
GT_SDMA_WRITE(sc, SDMA_SDCM, SDMA_SDCM_ERD);
mutex_spin_exit(&sc->sc_lock);
}
splx(s);
error = ttyopen(tp, GTMPSCDIALOUT(dev), ISSET(flag, O_NONBLOCK));
if (error)
goto bad;
error = (*tp->t_linesw->l_open)(dev, tp);
if (error)
goto bad;
return 0;
bad:
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
/*
* We failed to open the device, and nobody else had it opened.
* Clean up the state as appropriate.
*/
gtmpscshutdown(sc);
}
return error;
}
