unsigned char net_receive()
{
if (!com_check())
return NET_NOTHING;
com_connect();
unsigned char cCommand = com_get_command();
switch (cCommand)
{
case (CMD_MA_OUT):
com_receive_chunk(&com_receive_buffer_size);
com_disconnect();
return NET_RECEIVED;
break;
case (CMD_MA_REQ):
sbi(COM_INT_PORT, COM_INT_PIN);
com_config(BUS_OUTPUT);
com_send_chunk(com_send_buffer_size);
com_disconnect();
return NET_SENT;
break;
}
return NET_NOTHING;
}
void net_send(uint8_t uiLen)
{
com_connect();
com_set_command(CMD_MA_OUT);
com_config(BUS_OUTPUT);
com_send_chunk(uiLen);
com_disconnect();
}
void net_receive()
{
if (!com_check())
return;
com_connect();
com_set_command(CMD_MA_REQ);
com_config(BUS_INPUT);
uint8_t uiLen =0;
com_receive_chunk(&uiLen);
com_disconnect();
cDataReq = 0;
sbi(GICR,INT0);
uiLen = parser_parse();
net_send(uiLen);
}
int
at91usart_open(dev_t dev, int flag, int mode, struct lwp *l)
{
struct at91usart_softc *sc;
struct tty *tp;
int s;
int error;
sc = device_lookup_private(&at91usart_cd, COMUNIT(dev));
if (sc == NULL || !ISSET(sc->sc_hwflags, COM_HW_DEV_OK))
return (ENXIO);
if (!device_is_active(sc->sc_dev))
return (ENXIO);
#ifdef KGDB
/*
* If this is the kgdb port, no other use is permitted.
*/
if (ISSET(sc->sc_hwflags, COM_HW_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();
/*
* Do the following iff this is a first open.
*/
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
struct termios t;
tp->t_dev = dev;
if (sc->enable) {
if ((*sc->enable)(sc)) {
splx(s);
printf("%s: device enable failed\n",
device_xname(sc->sc_dev));
return (EIO);
}
sc->enabled = 1;
#if 0
/* XXXXXXXXXXXXXXX */
com_config(sc);
#endif
}
/* reset fifos: */
AT91PDC_RESET_FIFO(sc->sc_iot, sc->sc_ioh, sc->sc_dmat, US_PDC, &sc->sc_rx_fifo, 0);
AT91PDC_RESET_FIFO(sc->sc_iot, sc->sc_ioh, sc->sc_dmat, US_PDC, &sc->sc_tx_fifo, 1);
/* reset receive */
at91usart_writereg(sc, US_CR, US_CR_RSTSTA | US_CR_STTTO);
/* Turn on interrupts. */
sc->sc_ier = US_CSR_ENDRX|US_CSR_RXBUFF|US_CSR_TIMEOUT|US_CSR_RXBRK;
at91usart_writereg(sc, US_IER, sc->sc_ier);
/* enable DMA: */
at91usart_writereg(sc, US_PDC + PDC_PTCR, PDC_PTCR_RXTEN);
/*
* Initialize the termios status to the defaults. Add in the
* sticky bits from TIOCSFLAGS.
*/
t.c_ispeed = 0;
/* if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
t.c_ospeed = usart_cn_sc.sc_ospeed;
t.c_cflag = usart_cn_sc.sc_cflag;
} else*/ {
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 at91usart_param() will do something. */
tp->t_ospeed = 0;
(void) at91usart_param(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
/* and unblock. */
CLR(sc->sc_rx_flags, RX_ANY_BLOCK);
#ifdef COM_DEBUG
if (at91usart_debug)
comstatus(sc, "at91usart_open ");
#endif
}
splx(s);
error = ttyopen(tp, COMDIALOUT(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.
*/
at91usart_shutdown(sc);
}
return (error);
}
int
at91dbgu_open(dev_t dev, int flag, int mode, struct lwp *l)
{
struct at91dbgu_softc *sc;
struct tty *tp;
int s, s2;
int error;
sc = device_lookup_private(&at91dbgu_cd, COMUNIT(dev));
if (sc == NULL || !ISSET(sc->sc_hwflags, COM_HW_DEV_OK) ||
sc->sc_rbuf == NULL)
return (ENXIO);
if (!device_is_active(sc->sc_dev))
return (ENXIO);
#ifdef KGDB
/*
* If this is the kgdb port, no other use is permitted.
*/
if (ISSET(sc->sc_hwflags, COM_HW_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();
/*
* Do the following iff this is a first open.
*/
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
struct termios t;
tp->t_dev = dev;
s2 = splserial();
if (sc->enable) {
if ((*sc->enable)(sc)) {
splx(s2);
splx(s);
printf("%s: device enable failed\n",
device_xname(sc->sc_dev));
return (EIO);
}
sc->enabled = 1;
#if 0
/* XXXXXXXXXXXXXXX */
com_config(sc);
#endif
}
/* Turn on interrupts. */
sc->sc_ier |= DBGU_INT_RXRDY;
DBGUREG(DBGU_IER) = DBGU_INT_RXRDY;
#if 0
/* Fetch the current modem control status, needed later. */
sc->sc_msr = bus_space_read_1(sc->sc_iot, sc->sc_ioh, com_msr);
/* Clear PPS capture state on first open. */
sc->sc_ppsmask = 0;
sc->ppsparam.mode = 0;
#endif
splx(s2);
/*
* Initialize the termios status to the defaults. Add in the
* sticky bits from TIOCSFLAGS.
*/
t.c_ispeed = 0;
if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
t.c_ospeed = dbgu_cn_sc.sc_ospeed;
t.c_cflag = dbgu_cn_sc.sc_cflag;
} else {
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 at91dbgu_param() will do something. */
tp->t_ospeed = 0;
(void) at91dbgu_param(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
s2 = splserial();
/* Clear the input ring, and unblock. */
sc->sc_rbput = sc->sc_rbget = sc->sc_rbuf;
sc->sc_rbavail = AT91DBGU_RING_SIZE;
at91dbgu_iflush(sc);
CLR(sc->sc_rx_flags, RX_ANY_BLOCK);
#ifdef COM_DEBUG
if (at91dbgu_debug)
comstatus(sc, "at91dbgu_open ");
#endif
splx(s2);
}
splx(s);
error = ttyopen(tp, COMDIALOUT(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.
*/
at91dbgu_shutdown(sc);
}
return (error);
}
