int
altera_jtag_uart_attach(struct altera_jtag_uart_softc *sc)
{
struct tty *tp;
int error;
AJU_LOCK_INIT(sc);
/*
* XXXRW: Currently, we detect the console solely based on it using a
* reserved address, and borrow console-level locks and buffer if so.
* Is there a better way?
*/
if (rman_get_start(sc->ajus_mem_res) == BERI_UART_BASE) {
sc->ajus_lockp = &aju_cons_lock;
sc->ajus_buffer_validp = &aju_cons_buffer_valid;
sc->ajus_buffer_datap = &aju_cons_buffer_data;
sc->ajus_jtag_presentp = &aju_cons_jtag_present;
sc->ajus_jtag_missedp = &aju_cons_jtag_missed;
sc->ajus_flags |= ALTERA_JTAG_UART_FLAG_CONSOLE;
} else {
sc->ajus_lockp = &sc->ajus_lock;
sc->ajus_buffer_validp = &sc->ajus_buffer_valid;
sc->ajus_buffer_datap = &sc->ajus_buffer_data;
sc->ajus_jtag_presentp = &sc->ajus_jtag_present;
sc->ajus_jtag_missedp = &sc->ajus_jtag_missed;
}
/*
* Disable interrupts regardless of whether or not we plan to use
* them. We will register an interrupt handler now if they will be
* used, but not re-enable intil later once the remainder of the tty
* layer is properly initialised, as we're not ready for input yet.
*/
AJU_LOCK(sc);
aju_intr_disable(sc);
AJU_UNLOCK(sc);
if (sc->ajus_irq_res != NULL) {
error = bus_setup_intr(sc->ajus_dev, sc->ajus_irq_res,
INTR_ENTROPY | INTR_TYPE_TTY | INTR_MPSAFE, NULL,
aju_intr, sc, &sc->ajus_irq_cookie);
if (error) {
device_printf(sc->ajus_dev,
"could not activate interrupt\n");
AJU_LOCK_DESTROY(sc);
return (error);
}
}
tp = sc->ajus_ttyp = tty_alloc(&aju_ttydevsw, sc);
if (sc->ajus_flags & ALTERA_JTAG_UART_FLAG_CONSOLE) {
aju_cons_sc = sc;
tty_init_console(tp, 0);
}
tty_makedev(tp, NULL, "%s%d", AJU_TTYNAME, sc->ajus_unit);
/*
* If we will be using interrupts, enable them now; otherwise, start
* polling. From this point onwards, input can arrive.
*/
if (sc->ajus_irq_res != NULL) {
AJU_LOCK(sc);
aju_intr_readable_enable(sc);
AJU_UNLOCK(sc);
} else {
callout_init(&sc->ajus_io_callout, 1);
callout_reset(&sc->ajus_io_callout, AJU_IO_POLLINTERVAL,
aju_io_callout, sc);
}
callout_init(&sc->ajus_ac_callout, 1);
callout_reset(&sc->ajus_ac_callout, AJU_AC_POLLINTERVAL,
aju_ac_callout, sc);
return (0);
}
/*
* cz_attach:
*
* A Cyclades-Z board was found; attach it.
*/
static void
cz_attach(device_t parent, device_t self, void *aux)
{
extern const struct cdevsw cz_cdevsw; /* XXX */
struct cz_softc *cz = device_private(self);
struct pci_attach_args *pa = aux;
pci_intr_handle_t ih;
const char *intrstr = NULL;
struct cztty_softc *sc;
struct tty *tp;
int i;
aprint_naive(": Multi-port serial controller\n");
aprint_normal(": Cyclades-Z multiport serial\n");
cz->cz_dev = self;
cz->cz_plx.plx_pc = pa->pa_pc;
cz->cz_plx.plx_tag = pa->pa_tag;
if (pci_mapreg_map(pa, PLX_PCI_RUNTIME_MEMADDR,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
&cz->cz_plx.plx_st, &cz->cz_plx.plx_sh, NULL, NULL) != 0) {
aprint_error_dev(cz->cz_dev, "unable to map PLX registers\n");
return;
}
if (pci_mapreg_map(pa, PLX_PCI_LOCAL_ADDR0,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
&cz->cz_win_st, &cz->cz_win_sh, NULL, NULL) != 0) {
aprint_error_dev(cz->cz_dev, "unable to map device window\n");
return;
}
cz->cz_mailbox0 = CZ_PLX_READ(cz, PLX_MAILBOX0);
cz->cz_nopenchan = 0;
/*
* Make sure that the board is completely stopped.
*/
CZ_WIN_FPGA(cz);
CZ_FPGA_WRITE(cz, FPGA_CPU_STOP, 0);
/*
* Load the board's firmware.
*/
if (cz_load_firmware(cz) != 0)
return;
/*
* Now that we're ready to roll, map and establish the interrupt
* handler.
*/
if (pci_intr_map(pa, &ih) != 0) {
/*
* The common case is for Cyclades-Z boards to run
* in polling mode, and thus not have an interrupt
* mapped for them. Don't bother reporting that
* the interrupt is not mappable, since this isn't
* really an error.
*/
cz->cz_ih = NULL;
goto polling_mode;
} else {
intrstr = pci_intr_string(pa->pa_pc, ih);
cz->cz_ih = pci_intr_establish(pa->pa_pc, ih, IPL_TTY,
cz_intr, cz);
}
if (cz->cz_ih == NULL) {
aprint_error_dev(cz->cz_dev, "unable to establish interrupt");
if (intrstr != NULL)
aprint_error(" at %s", intrstr);
aprint_error("\n");
/* We will fall-back on polling mode. */
} else
aprint_normal_dev(cz->cz_dev, "interrupting at %s\n",
intrstr);
polling_mode:
if (cz->cz_ih == NULL) {
callout_init(&cz->cz_callout, 0);
if (cz_timeout_ticks == 0)
cz_timeout_ticks = max(1, hz * CZ_POLL_MS / 1000);
aprint_normal_dev(cz->cz_dev, "polling mode, %d ms interval (%d tick%s)\n",
CZ_POLL_MS, cz_timeout_ticks,
cz_timeout_ticks == 1 ? "" : "s");
}
/*
* Allocate sufficient pointers for the children and
* attach them. Set all ports to a reasonable initial
* configuration while we're at it:
*
* disabled
* 8N1
* default baud rate
* hardware flow control.
*/
CZ_WIN_RAM(cz);
if (cz->cz_nchannels == 0) {
/* No channels? No more work to do! */
return;
}
cz->cz_ports = malloc(sizeof(struct cztty_softc) * cz->cz_nchannels,
M_DEVBUF, M_WAITOK|M_ZERO);
cztty_attached_ttys += cz->cz_nchannels;
for (i = 0; i < cz->cz_nchannels; i++) {
sc = &cz->cz_ports[i];
sc->sc_channel = i;
sc->sc_chan_st = cz->cz_win_st;
sc->sc_parent = cz;
if (bus_space_subregion(cz->cz_win_st, cz->cz_win_sh,
cz->cz_fwctl + ZFIRM_CHNCTL_OFF(i, 0),
ZFIRM_CHNCTL_SIZE, &sc->sc_chan_sh)) {
aprint_error_dev(cz->cz_dev,
"unable to subregion channel %d control\n", i);
sc->sc_channel = CZTTY_CHANNEL_DEAD;
continue;
}
if (bus_space_subregion(cz->cz_win_st, cz->cz_win_sh,
cz->cz_fwctl + ZFIRM_BUFCTL_OFF(i, 0),
ZFIRM_BUFCTL_SIZE, &sc->sc_buf_sh)) {
aprint_error_dev(cz->cz_dev,
"unable to subregion channel %d buffer\n", i);
sc->sc_channel = CZTTY_CHANNEL_DEAD;
continue;
}
callout_init(&sc->sc_diag_ch, 0);
tp = tty_alloc();
tp->t_dev = makedev(cdevsw_lookup_major(&cz_cdevsw),
(device_unit(cz->cz_dev) * ZFIRM_MAX_CHANNELS) + i);
tp->t_oproc = czttystart;
tp->t_param = czttyparam;
tty_attach(tp);
sc->sc_tty = tp;
CZTTY_CHAN_WRITE(sc, CHNCTL_OP_MODE, C_CH_DISABLE);
CZTTY_CHAN_WRITE(sc, CHNCTL_INTR_ENABLE, CZ_INTERRUPTS);
CZTTY_CHAN_WRITE(sc, CHNCTL_SW_FLOW, 0);
CZTTY_CHAN_WRITE(sc, CHNCTL_FLOW_XON, 0x11);
CZTTY_CHAN_WRITE(sc, CHNCTL_FLOW_XOFF, 0x13);
CZTTY_CHAN_WRITE(sc, CHNCTL_COMM_BAUD, TTYDEF_SPEED);
CZTTY_CHAN_WRITE(sc, CHNCTL_COMM_PARITY, C_PR_NONE);
CZTTY_CHAN_WRITE(sc, CHNCTL_COMM_DATA_L, C_DL_CS8 | C_DL_1STOP);
CZTTY_CHAN_WRITE(sc, CHNCTL_COMM_FLAGS, 0);
CZTTY_CHAN_WRITE(sc, CHNCTL_HW_FLOW, C_RS_CTS | C_RS_RTS);
CZTTY_CHAN_WRITE(sc, CHNCTL_RS_CONTROL, 0);
}
}
int
mfcsopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct tty *tp;
struct mfcs_softc *sc;
int unit, error;
error = 0;
unit = dev & 0x1f;
sc = device_lookup_private(&mfcs_cd, unit);
if (sc == NULL || (mfcs_active & (1 << unit)) == 0)
return (ENXIO);
if (sc->sc_tty)
tp = sc->sc_tty;
else {
tp = sc->sc_tty = tty_alloc();
tty_attach(tp);
}
tp->t_oproc = (void (*) (struct tty *)) mfcsstart;
tp->t_param = mfcsparam;
tp->t_dev = dev;
tp->t_hwiflow = mfcshwiflow;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
mutex_spin_enter(&tty_lock);
if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
ttychars(tp);
if (tp->t_ispeed == 0) {
/*
* only when cleared do we reset to defaults.
*/
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = mfcsdefaultrate;
}
/*
* do these all the time
*/
if (sc->swflags & TIOCFLAG_CLOCAL)
tp->t_cflag |= CLOCAL;
if (sc->swflags & TIOCFLAG_CRTSCTS)
tp->t_cflag |= CRTSCTS;
if (sc->swflags & TIOCFLAG_MDMBUF)
tp->t_cflag |= MDMBUF;
mfcsparam(tp, &tp->t_termios);
ttsetwater(tp);
(void)mfcsmctl(dev, TIOCM_DTR | TIOCM_RTS, DMSET);
if ((SWFLAGS(dev) & TIOCFLAG_SOFTCAR) ||
(mfcsmctl(dev, 0, DMGET) & TIOCM_CD))
tp->t_state |= TS_CARR_ON;
else
tp->t_state &= ~TS_CARR_ON;
}
/*
* if NONBLOCK requested, ignore carrier
*/
if (flag & O_NONBLOCK)
goto done;
/*
* block waiting for carrier
*/
while ((tp->t_state & TS_CARR_ON) == 0 && (tp->t_cflag & CLOCAL) == 0) {
tp->t_wopen++;
error = ttysleep(tp, &tp->t_rawcv, true, 0);
tp->t_wopen--;
if (error) {
mutex_spin_exit(&tty_lock);
return(error);
}
}
done:
/* This is a way to handle lost XON characters */
if ((flag & O_TRUNC) && (tp->t_state & TS_TTSTOP)) {
tp->t_state &= ~TS_TTSTOP;
ttstart (tp);
}
/*
* Reset the tty pointer, as there could have been a dialout
* use of the tty with a dialin open waiting.
*/
tp->t_dev = dev;
mutex_spin_exit(&tty_lock);
return tp->t_linesw->l_open(dev, tp);
}
/*
* Open a zs serial port.
*/
int
zsopen(dev_t dev, int flags, int mode, struct lwp *l)
{
struct tty *tp;
struct zs_chanstate *cs;
struct zs_softc *sc;
int unit = ZS_UNIT(dev);
int zs = unit >> 1;
int error, s;
sc = device_lookup_private(&zs_cd, zs);
if (sc == NULL)
return ENXIO;
cs = sc->sc_cs[unit & 1];
/*
* When port A (ser02) is selected on the TT, make sure
* the port is enabled.
*/
if ((machineid & ATARI_TT) && !(unit & 1))
ym2149_ser2(1);
if (cs->cs_rbuf == NULL) {
cs->cs_rbuf = malloc(ZLRB_RING_SIZE * sizeof(int), M_DEVBUF,
M_WAITOK);
}
tp = cs->cs_ttyp;
if (tp == NULL) {
cs->cs_ttyp = tp = tty_alloc();
tty_attach(tp);
tp->t_dev = dev;
tp->t_oproc = zsstart;
tp->t_param = zsparam;
}
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.
*/
if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
if (tp->t_ispeed == 0) {
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
}
ttychars(tp);
ttsetwater(tp);
(void)zsparam(tp, &tp->t_termios);
/*
* 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.
*/
zs_modem(cs, ZSWR5_RTS|ZSWR5_DTR, DMSET);
/* May never get a status intr. if DCD already on. -gwr */
if (((cs->cs_rr0 = cs->cs_zc->zc_csr) & ZSRR0_DCD) != 0)
tp->t_state |= TS_CARR_ON;
if (cs->cs_softcar)
tp->t_state |= TS_CARR_ON;
}
splx(s);
error = ttyopen(tp, ZS_DIALOUT(dev), (flags & O_NONBLOCK));
if (error)
goto bad;
error = tp->t_linesw->l_open(dev, tp);
if (error)
goto bad;
return 0;
bad:
if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
/*
* We failed to open the device, and nobody else had it opened.
* Clean up the state as appropriate.
*/
zs_shutdown(cs);
}
return error;
}
void
sscom_attach_subr(struct sscom_softc *sc)
{
int unit = sc->sc_unit;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh = sc->sc_ioh;
struct tty *tp;
callout_init(&sc->sc_diag_callout, 0);
#if (defined(MULTIPROCESSOR) || defined(LOCKDEBUG)) && defined(SSCOM_MPLOCK)
sc->sc_lock = mutex_obj_alloc(MUTEX_DEFAULT, IPL_SERIAL);
#endif
sc->sc_ucon = UCON_RXINT_ENABLE|UCON_TXINT_ENABLE;
/*
* set default for modem control hook
*/
if (sc->sc_set_modem_control == NULL)
sc->sc_set_modem_control = sscom_set_modem_control;
if (sc->sc_read_modem_status == NULL)
sc->sc_read_modem_status = sscom_read_modem_status;
/* Disable interrupts before configuring the device. */
KASSERT(sc->sc_change_txrx_interrupts != NULL);
KASSERT(sc->sc_clear_interrupts != NULL);
sscom_disable_txrxint(sc);
#ifdef KGDB
/*
* Allow kgdb to "take over" this port. If this is
* the kgdb device, it has exclusive use.
*/
if (unit == sscom_kgdb_unit) {
SET(sc->sc_hwflags, SSCOM_HW_KGDB);
sc->sc_ucon = UCON_DEBUGPORT;
}
#endif
if (unit == sscomconsunit) {
uint32_t stat;
int timo;
sscomconsattached = 1;
sscomconstag = iot;
sscomconsioh = ioh;
/* wait for this transmission to complete */
timo = 1500000;
do {
stat = bus_space_read_4(iot, ioh, SSCOM_UTRSTAT);
} while ((stat & UTRSTAT_TXEMPTY) == 0 && --timo > 0);
/* Make sure the console is always "hardwired". */
SET(sc->sc_hwflags, SSCOM_HW_CONSOLE);
SET(sc->sc_swflags, TIOCFLAG_SOFTCAR);
sc->sc_ucon = UCON_DEBUGPORT;
}
/* set RX/TX trigger to half values */
bus_space_write_4(iot, ioh, SSCOM_UFCON,
__SHIFTIN(4, UFCON_TXTRIGGER) |
__SHIFTIN(4, UFCON_RXTRIGGER) |
UFCON_FIFO_ENABLE |
UFCON_TXFIFO_RESET|
UFCON_RXFIFO_RESET);
/* tx/rx fifo reset are auto-cleared */
bus_space_write_4(iot, ioh, SSCOM_UCON, sc->sc_ucon);
#ifdef KGDB
if (ISSET(sc->sc_hwflags, SSCOM_HW_KGDB)) {
sscom_kgdb_attached = 1;
printf("%s: kgdb\n", device_xname(sc->sc_dev));
sscom_enable_debugport(sc);
return;
}
#endif
tp = tty_alloc();
tp->t_oproc = sscomstart;
tp->t_param = sscomparam;
tp->t_hwiflow = sscomhwiflow;
sc->sc_tty = tp;
sc->sc_rbuf = malloc(sscom_rbuf_size << 1, M_DEVBUF, M_NOWAIT);
sc->sc_rbput = sc->sc_rbget = sc->sc_rbuf;
sc->sc_rbavail = sscom_rbuf_size;
if (sc->sc_rbuf == NULL) {
printf("%s: unable to allocate ring buffer\n",
device_xname(sc->sc_dev));
return;
}
sc->sc_ebuf = sc->sc_rbuf + (sscom_rbuf_size << 1);
tty_attach(tp);
if (ISSET(sc->sc_hwflags, SSCOM_HW_CONSOLE)) {
int maj;
/* locate the major number */
maj = cdevsw_lookup_major(&sscom_cdevsw);
cn_tab->cn_dev = makedev(maj, device_unit(sc->sc_dev));
printf("%s: console (major=%d)\n", device_xname(sc->sc_dev), maj);
}
sc->sc_si = softint_establish(SOFTINT_SERIAL, sscomsoft, sc);
#ifdef RND_COM
rnd_attach_source(&sc->rnd_source, device_xname(sc->sc_dev),
RND_TYPE_TTY, RND_FLAG_DEFAULT);
#endif
/* if there are no enable/disable functions, assume the device
is always enabled */
if (ISSET(sc->sc_hwflags, SSCOM_HW_CONSOLE))
sscom_enable_debugport(sc);
else
sscom_disable_txrxint(sc);
SET(sc->sc_hwflags, SSCOM_HW_DEV_OK);
}
/* ARGSUSED */
STATIC void
gtmpscattach(device_t parent, device_t self, void *aux)
{
struct gtmpsc_softc *sc = device_private(self);
struct marvell_attach_args *mva = aux;
bus_dma_segment_t segs;
struct tty *tp;
int rsegs, err, unit;
void *kva;
aprint_naive("\n");
aprint_normal(": Multi-Protocol Serial Controller\n");
if (mva->mva_unit != MVA_UNIT_DEFAULT)
unit = mva->mva_unit;
else
unit = (mva->mva_offset == GTMPSC_BASE(0)) ? 0 : 1;
#ifdef MPSC_CONSOLE
if (cn_tab == >mpsc_consdev &&
cn_tab->cn_dev == makedev(0, unit)) {
gtmpsc_cn_softc.sc_dev = self;
memcpy(sc, >mpsc_cn_softc, sizeof(struct gtmpsc_softc));
sc->sc_flags = GTMPSC_CONSOLE;
} else
#endif
{
if (bus_space_subregion(mva->mva_iot, mva->mva_ioh,
mva->mva_offset, mva->mva_size, &sc->sc_mpsch)) {
aprint_error_dev(self, "Cannot map MPSC registers\n");
return;
}
if (bus_space_subregion(mva->mva_iot, mva->mva_ioh,
GTSDMA_BASE(unit), GTSDMA_SIZE, &sc->sc_sdmah)) {
aprint_error_dev(self, "Cannot map SDMA registers\n");
return;
}
sc->sc_dev = self;
sc->sc_unit = unit;
sc->sc_iot = mva->mva_iot;
sc->sc_dmat = mva->mva_dmat;
err = bus_dmamem_alloc(sc->sc_dmat, PAGE_SIZE, PAGE_SIZE, 0,
&segs, 1, &rsegs, BUS_DMA_NOWAIT);
if (err) {
aprint_error_dev(sc->sc_dev,
"bus_dmamem_alloc error 0x%x\n", err);
goto fail0;
}
err = bus_dmamem_map(sc->sc_dmat, &segs, 1, PAGE_SIZE, &kva,
BUS_DMA_NOWAIT);
if (err) {
aprint_error_dev(sc->sc_dev,
"bus_dmamem_map error 0x%x\n", err);
goto fail1;
}
memset(kva, 0, PAGE_SIZE); /* paranoid/superfluous */
sc->sc_poll_sdmapage = kva;
err = bus_dmamap_create(sc->sc_dmat, sizeof(gtmpsc_polltx_t), 1,
sizeof(gtmpsc_polltx_t), 0, BUS_DMA_NOWAIT,
&sc->sc_txdma_map);
if (err != 0) {
aprint_error_dev(sc->sc_dev,
"bus_dmamap_create error 0x%x\n", err);
goto fail2;
}
err = bus_dmamap_load(sc->sc_dmat, sc->sc_txdma_map,
sc->sc_poll_sdmapage->tx, sizeof(gtmpsc_polltx_t),
NULL, BUS_DMA_NOWAIT | BUS_DMA_READ | BUS_DMA_WRITE);
if (err != 0) {
aprint_error_dev(sc->sc_dev,
"bus_dmamap_load tx error 0x%x\n", err);
goto fail3;
}
err = bus_dmamap_create(sc->sc_dmat, sizeof(gtmpsc_pollrx_t), 1,
sizeof(gtmpsc_pollrx_t), 0, BUS_DMA_NOWAIT,
&sc->sc_rxdma_map);
if (err != 0) {
aprint_error_dev(sc->sc_dev,
"bus_dmamap_create rx error 0x%x\n", err);
goto fail4;
}
err = bus_dmamap_load(sc->sc_dmat, sc->sc_rxdma_map,
sc->sc_poll_sdmapage->rx, sizeof(gtmpsc_pollrx_t),
NULL, BUS_DMA_NOWAIT | BUS_DMA_READ | BUS_DMA_WRITE);
if (err != 0) {
aprint_error_dev(sc->sc_dev,
"bus_dmamap_load rx error 0x%x\n", err);
goto fail5;
}
sc->sc_brg = unit; /* XXXXX */
sc->sc_baudrate = GT_MPSC_DEFAULT_BAUD_RATE;
}
aprint_normal_dev(self, "with SDMA offset 0x%04x-0x%04x\n",
GTSDMA_BASE(unit), GTSDMA_BASE(unit) + GTSDMA_SIZE - 1);
sc->sc_rx_ready = 0;
sc->sc_tx_busy = 0;
sc->sc_tx_done = 0;
sc->sc_tx_stopped = 0;
sc->sc_heldchange = 0;
gtmpsc_txdesc_init(sc);
gtmpsc_rxdesc_init(sc);
sc->sc_tty = tp = tty_alloc();
tp->t_oproc = gtmpscstart;
tp->t_param = gtmpscparam;
tty_attach(tp);
mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_HIGH);
/*
* clear any pending SDMA interrupts for this unit
*/
(void) gt_sdma_icause(device_parent(sc->sc_dev),
SDMA_INTR_RXBUF(sc->sc_unit) |
SDMA_INTR_RXERR(sc->sc_unit) |
SDMA_INTR_TXBUF(sc->sc_unit) |
SDMA_INTR_TXEND(sc->sc_unit));
sc->sc_si = softint_establish(SOFTINT_SERIAL, gtmpsc_softintr, sc);
if (sc->sc_si == NULL)
panic("mpscattach: cannot softint_establish IPL_SOFTSERIAL");
shutdownhook_establish(gtmpsc_shutdownhook, sc);
gtmpscinit_stop(sc);
gtmpscinit_start(sc);
if (sc->sc_flags & GTMPSC_CONSOLE) {
int maj;
/* locate the major number */
maj = cdevsw_lookup_major(>mpsc_cdevsw);
tp->t_dev = cn_tab->cn_dev =
makedev(maj, device_unit(sc->sc_dev));
aprint_normal_dev(self, "console\n");
}
#ifdef KGDB
/*
* Allow kgdb to "take over" this port. If this is
* the kgdb device, it has exclusive use.
*/
if (sc->sc_unit == gtmpsckgdbport) {
#ifdef MPSC_CONSOLE
if (sc->sc_unit == MPSC_CONSOLE) {
aprint_error_dev(self,
"(kgdb): cannot share with console\n");
return;
}
#endif
sc->sc_flags |= GTMPSC_KGDB;
aprint_normal_dev(self, "kgdb\n");
gtmpsc_txflush(sc);
kgdb_attach(gtmpsc_kgdb_getc, gtmpsc_kgdb_putc, NULL);
kgdb_dev = 123; /* unneeded, only to satisfy some tests */
gtmpsc_kgdb_attached = 1;
kgdb_connect(1);
}
#endif /* KGDB */
return;
fail5:
bus_dmamap_destroy(sc->sc_dmat, sc->sc_rxdma_map);
fail4:
bus_dmamap_unload(sc->sc_dmat, sc->sc_txdma_map);
fail3:
bus_dmamap_destroy(sc->sc_dmat, sc->sc_txdma_map);
fail2:
bus_dmamem_unmap(sc->sc_dmat, kva, PAGE_SIZE);
fail1:
bus_dmamem_free(sc->sc_dmat, &segs, 1);
fail0:
return;
}
void
sabtty_attach(device_t parent, device_t self, void *aux)
{
struct sabtty_softc *sc = device_private(self);
struct sabtty_attach_args *sa = aux;
int r;
int maj;
int is_kgdb = 0;
sc->sc_dev = self;
#ifdef KGDB
is_kgdb = sab_kgdb_check(sc);
#endif
if (!is_kgdb) {
sc->sc_tty = tty_alloc();
if (sc->sc_tty == NULL) {
aprint_normal(": failed to allocate tty\n");
return;
}
tty_attach(sc->sc_tty);
sc->sc_tty->t_oproc = sabtty_start;
sc->sc_tty->t_param = sabtty_param;
}
sc->sc_parent = device_private(parent);
sc->sc_bt = sc->sc_parent->sc_bt;
sc->sc_portno = sa->sbt_portno;
sc->sc_rend = sc->sc_rbuf + SABTTY_RBUF_SIZE;
switch (sa->sbt_portno) {
case 0: /* port A */
sc->sc_pvr_dtr = SAB_PVR_DTR_A;
sc->sc_pvr_dsr = SAB_PVR_DSR_A;
r = bus_space_subregion(sc->sc_bt, sc->sc_parent->sc_bh,
SAB_CHAN_A, SAB_CHANLEN, &sc->sc_bh);
break;
case 1: /* port B */
sc->sc_pvr_dtr = SAB_PVR_DTR_B;
sc->sc_pvr_dsr = SAB_PVR_DSR_B;
r = bus_space_subregion(sc->sc_bt, sc->sc_parent->sc_bh,
SAB_CHAN_B, SAB_CHANLEN, &sc->sc_bh);
break;
default:
aprint_normal(": invalid channel: %u\n", sa->sbt_portno);
return;
}
if (r != 0) {
aprint_normal(": failed to allocate register subregion\n");
return;
}
sabtty_console_flags(sc);
if (sc->sc_flags & (SABTTYF_CONS_IN | SABTTYF_CONS_OUT)) {
struct termios t;
const char *acc;
/* Let residual prom output drain */
DELAY(100000);
switch (sc->sc_flags & (SABTTYF_CONS_IN | SABTTYF_CONS_OUT)) {
case SABTTYF_CONS_IN:
acc = "input";
break;
case SABTTYF_CONS_OUT:
acc = "output";
break;
case SABTTYF_CONS_IN|SABTTYF_CONS_OUT:
default:
acc = "i/o";
break;
}
t.c_ispeed= 0;
if (sc->sc_flags & SABTTYF_IS_RSC)
t.c_ospeed = 115200;
else
t.c_ospeed = 9600;
t.c_cflag = CREAD | CS8 | HUPCL;
sc->sc_tty->t_ospeed = 0;
sabttyparam(sc, sc->sc_tty, &t);
if (sc->sc_flags & SABTTYF_CONS_IN) {
sabtty_cons_input = sc;
cn_tab->cn_pollc = sab_cnpollc;
cn_tab->cn_getc = sab_cngetc;
maj = cdevsw_lookup_major(&sabtty_cdevsw);
cn_tab->cn_dev = makedev(maj, device_unit(self));
shutdownhook_establish(sabtty_shutdown, sc);
cn_init_magic(&sabtty_cnm_state);
cn_set_magic("\047\001"); /* default magic is BREAK */
}
if (sc->sc_flags & SABTTYF_CONS_OUT) {
sabtty_tec_wait(sc);
sabtty_cons_output = sc;
cn_tab->cn_putc = sab_cnputc;
maj = cdevsw_lookup_major(&sabtty_cdevsw);
cn_tab->cn_dev = makedev(maj, device_unit(self));
}
aprint_normal(": console %s", acc);
} else {
/* Not a console... */
sabtty_reset(sc);
#ifdef KGDB
if (is_kgdb) {
sab_kgdb_init(sc);
aprint_normal(": kgdb");
}
#endif
}
aprint_normal("\n");
aprint_naive(": Serial port\n");
}
void
sbscn_attach_channel(struct sbscn_softc *sc, int chan, int intr)
{
struct sbscn_channel *ch = &sc->sc_channels[chan];
u_long chan_addr;
struct tty *tp;
ch->ch_sc = sc;
ch->ch_num = chan;
chan_addr = sc->sc_addr + (0x100 * chan);
ch->ch_base = (void *)MIPS_PHYS_TO_KSEG1(chan_addr);
ch->ch_isr_base =
(void *)MIPS_PHYS_TO_KSEG1(sc->sc_addr + 0x220 + (0x20 * chan));
ch->ch_imr_base =
(void *)MIPS_PHYS_TO_KSEG1(sc->sc_addr + 0x230 + (0x20 * chan));
#ifdef XXXCGDnotyet
ch->ch_inchg_base =
(void *)MIPS_PHYS_TO_KSEG1(sc->sc_addr + 0x2d0 + (0x10 * chan));
#endif
ch->ch_i_dcd = ch->ch_i_dcd_pin = 0 /* XXXCGD */;
ch->ch_i_cts = ch->ch_i_cts_pin = 0 /* XXXCGD */;
ch->ch_i_dsr = ch->ch_i_dsr_pin = 0 /* XXXCGD */;
ch->ch_i_ri = ch->ch_i_ri_pin = 0 /* XXXCGD */;
ch->ch_i_mask =
ch->ch_i_dcd | ch->ch_i_cts | ch->ch_i_dsr | ch->ch_i_ri;
ch->ch_o_dtr = ch->ch_o_dtr_pin = 0 /* XXXCGD */;
ch->ch_o_rts = ch->ch_o_rts_pin = 0 /* XXXCGD */;
ch->ch_o_mask = ch->ch_o_dtr | ch->ch_o_rts;
ch->ch_intrhand = cpu_intr_establish(intr, IPL_SERIAL, sbscn_intr, ch);
callout_init(&ch->ch_diag_callout, 0);
/* Disable interrupts before configuring the device. */
ch->ch_imr = 0;
WRITE_REG(ch->ch_imr_base, ch->ch_imr);
if (sbscn_cons_present &&
sbscn_cons_addr == chan_addr && sbscn_cons_chan == chan) {
sbscn_cons_attached = 1;
/* Make sure the console is always "hardwired". */
delay(1000); /* wait for output to finish */
SET(ch->ch_hwflags, SBSCN_HW_CONSOLE);
SET(ch->ch_swflags, TIOCFLAG_SOFTCAR);
}
tp = tty_alloc();
tp->t_oproc = sbscn_start;
tp->t_param = sbscn_param;
tp->t_hwiflow = sbscn_hwiflow;
ch->ch_tty = tp;
ch->ch_rbuf = malloc(sbscn_rbuf_size << 1, M_DEVBUF, M_NOWAIT);
if (ch->ch_rbuf == NULL) {
aprint_error_dev(sc->sc_dev,
"channel %d: unable to allocate ring buffer\n",
chan);
return;
}
ch->ch_ebuf = ch->ch_rbuf + (sbscn_rbuf_size << 1);
tty_attach(tp);
if (ISSET(ch->ch_hwflags, SBSCN_HW_CONSOLE)) {
int maj;
/* locate the major number */
maj = cdevsw_lookup_major(&sbscn_cdevsw);
cn_tab->cn_dev = makedev(maj,
(device_unit(sc->sc_dev) << 1) + chan);
aprint_normal_dev(sc->sc_dev, "channel %d: %s\n",
chan, "console");
}
#ifdef KGDB
/*
* Allow kgdb to "take over" this port. If this is
* the kgdb device, it has exclusive use.
*/
if (sbscn_kgdb_present &&
sbscn_kgdb_addr == chan_addr && sbscn_kgdb_chan == chan) {
sbscn_kgdb_attached = 1;
SET(sc->sc_hwflags, SBSCN_HW_KGDB);
aprint_normal_dev(sc->sc_dev, "channel %d: %s\n",
chan, "kgdb");
}
#endif
ch->ch_si = softint_establish(SOFTINT_SERIAL, sbscn_soft, ch);
#ifdef RND_SBSCN
rnd_attach_source(&ch->ch_rnd_source, device_xname(sc->sc_dev),
RND_TYPE_TTY, 0);
#endif
sbscn_config(ch);
SET(ch->ch_hwflags, SBSCN_HW_DEV_OK);
}
void
at91usart_attach_subr(struct at91usart_softc *sc, struct at91bus_attach_args *sa)
{
struct tty *tp;
int err;
printf("\n");
if (bus_space_map(sa->sa_iot, sa->sa_addr, sa->sa_size, 0, &sc->sc_ioh))
panic("%s: Cannot map registers", device_xname(sc->sc_dev));
sc->sc_iot = sa->sa_iot;
sc->sc_hwbase = sa->sa_addr;
sc->sc_dmat = sa->sa_dmat;
sc->sc_pid = sa->sa_pid;
/* allocate fifos */
err = at91pdc_alloc_fifo(sc->sc_dmat, &sc->sc_rx_fifo, AT91USART_RING_SIZE, BUS_DMA_READ | BUS_DMA_STREAMING);
if (err)
panic("%s: cannot allocate rx fifo", device_xname(sc->sc_dev));
err = at91pdc_alloc_fifo(sc->sc_dmat, &sc->sc_tx_fifo, AT91USART_RING_SIZE, BUS_DMA_WRITE | BUS_DMA_STREAMING);
if (err)
panic("%s: cannot allocate tx fifo", device_xname(sc->sc_dev));
/* initialize uart */
at91_peripheral_clock(sc->sc_pid, 1);
at91usart_writereg(sc, US_IDR, -1);
at91usart_writereg(sc, US_RTOR, 12); // 12-bit timeout
at91usart_writereg(sc, US_PDC + PDC_PTCR, PDC_PTCR_TXTDIS | PDC_PTCR_RXTDIS);
at91_intr_establish(sa->sa_pid, IPL_TTY, INTR_HIGH_LEVEL, at91usart_intr, sc);
USART_INIT(sc, 115200U);
#ifdef NOTYET
if (sc->sc_iot == usart_cn_sc.sc_iot
&& sc->sc_hwbase == usart_cn_sc.sc_hwbase) {
usart_cn_sc.sc_attached = 1;
/* Make sure the console is always "hardwired". */
delay(10000); /* wait for output to finish */
SET(sc->sc_hwflags, COM_HW_CONSOLE);
SET(sc->sc_swflags, TIOCFLAG_SOFTCAR);
SET(sc->sc_ier, USART_INT_RXRDY);
USARTREG(USART_IER) = USART_INT_RXRDY; // @@@@@
}
#endif // NOTYET
tp = tty_alloc();
tp->t_oproc = at91usart_start;
tp->t_param = at91usart_param;
tp->t_hwiflow = at91usart_hwiflow;
sc->sc_tty = tp;
tty_attach(tp);
#if NOTYET
if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
int maj;
/* locate the major number */
maj = cdevsw_lookup_major(&at91usart_cdevsw);
cn_tab->cn_dev = makedev(maj, device_unit(sc->sc_dev));
aprint_normal("%s: console (maj %u min %u cn_dev %u)\n",
device_xname(sc->sc_dev), maj, device_unit(sc->sc_dev),
cn_tab->cn_dev);
}
#endif /* NOTYET */
sc->sc_si = softint_establish(SOFTINT_SERIAL, at91usart_soft, sc);
#ifdef RND_COM
rnd_attach_source(&sc->rnd_source, device_xname(sc->sc_dev),
RND_TYPE_TTY, RND_FLAG_DEFAULT);
#endif
/* if there are no enable/disable functions, assume the device
is always enabled */
if (!sc->enable)
sc->enabled = 1;
/* XXX configure register */
/* xxx_config(sc) */
SET(sc->sc_hwflags, COM_HW_DEV_OK);
}
