mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
Merged from sys/dev/sio/sio.c (Use generic tty code).
This commit is contained in:
Yoshihiro Takahashi
parent
99e085d9a8
commit
9e6b875495
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=136550
@ -126,7 +126,6 @@
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#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
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/*
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* Meaning of flags:
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*
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@ -308,8 +307,6 @@ struct com_s {
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struct tty *tp; /* cross reference */
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bool_t do_timestamp;
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struct timeval timestamp;
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struct pps_state pps;
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int pps_bit;
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#ifdef ALT_BREAK_TO_DEBUGGER
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@ -349,6 +346,8 @@ static int espattach(struct com_s *com, Port_t esp_port);
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static void combreak(struct tty *tp, int sig);
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static timeout_t siobusycheck;
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static u_int siodivisor(u_long rclk, speed_t speed);
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static void comclose(struct tty *tp);
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static int comopen(struct tty *tp, struct cdev *dev);
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static void sioinput(struct com_s *com);
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static void siointr1(struct com_s *com);
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static void siointr(void *arg);
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@ -370,9 +369,6 @@ devclass_t sio_devclass;
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#define com_addr(unit) ((struct com_s *) \
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devclass_get_softc(sio_devclass, unit)) /* XXX */
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static t_close_t sioclose;
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static t_open_t sioopen;
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int comconsole = -1;
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static volatile speed_t comdefaultrate = CONSPEED;
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static u_long comdefaultrclk = DEFAULT_RCLK;
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@ -688,10 +684,6 @@ sysctl_machdep_comdefaultrate(SYSCTL_HANDLER_ARGS)
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if (tp == NULL)
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return (ENXIO);
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tp = com->tp;
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if (tp == NULL)
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return (ENXIO);
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/*
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* set the initial and lock rates for /dev/ttydXX and /dev/cuaXX
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* (note, the lock rates really are boolean -- if non-zero, disallow
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@ -726,8 +718,7 @@ SYSCTL_PROC(_machdep, OID_AUTO, conspeed, CTLTYPE_INT | CTLFLAG_RW,
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* read and write do not hang.
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*/
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int
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siodetach(dev)
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device_t dev;
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siodetach(device_t dev)
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{
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struct com_s *com;
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@ -738,7 +729,7 @@ siodetach(dev)
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}
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com->gone = TRUE;
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if (com->tp)
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ttygone(com->tp);
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ttyfree(com->tp);
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if (com->irqres) {
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bus_teardown_intr(dev, com->irqres, com->cookie);
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bus_release_resource(dev, SYS_RES_IRQ, 0, com->irqres);
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@ -746,21 +737,15 @@ siodetach(dev)
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if (com->ioportres)
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bus_release_resource(dev, SYS_RES_IOPORT, com->ioportrid,
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com->ioportres);
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if (com->tp && (com->tp->t_state & TS_ISOPEN)) {
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device_printf(dev, "still open, forcing close\n");
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ttyfree(com->tp);
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} else {
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if (com->ibuf != NULL)
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free(com->ibuf, M_DEVBUF);
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#ifdef PC98
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if (com->obuf1 != NULL)
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free(com->obuf1, M_DEVBUF);
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#endif
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device_set_softc(dev, NULL);
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if (com->tp)
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ttyfree(com->tp);
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free(com, M_DEVBUF);
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}
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return (0);
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}
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@ -1380,12 +1365,12 @@ sioattach(dev, xrid, rclk)
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Port_t *espp;
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#endif
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Port_t iobase;
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int minorbase;
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int unit;
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u_int flags;
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int rid;
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struct resource *port;
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int ret;
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int error;
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struct tty *tp;
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#ifdef PC98
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u_char *obuf;
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@ -1504,14 +1489,15 @@ sioattach(dev, xrid, rclk)
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com->line_status_port = iobase + com_lsr;
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com->modem_status_port = iobase + com_msr;
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#endif
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tp = com->tp = ttyalloc();
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tp->t_open = sioopen;
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tp->t_close = sioclose;
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tp->t_oproc = comstart;
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tp->t_param = comparam;
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tp->t_stop = comstop;
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tp->t_modem = commodem;
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tp->t_break = combreak;
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tp->t_close = comclose;
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tp->t_open = comopen;
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tp->t_sc = com;
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#ifdef PC98
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@ -1523,33 +1509,11 @@ sioattach(dev, xrid, rclk)
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#endif
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com->rclk = rclk;
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/*
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* We don't use all the flags from <sys/ttydefaults.h> since they
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* are only relevant for logins. It's important to have echo off
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* initially so that the line doesn't start blathering before the
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* echo flag can be turned off.
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*/
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tp->t_init_in.c_iflag = 0;
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tp->t_init_in.c_oflag = 0;
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tp->t_init_in.c_cflag = TTYDEF_CFLAG;
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tp->t_init_in.c_lflag = 0;
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if (unit == comconsole) {
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#ifdef PC98
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if (IS_8251(com->pc98_if_type))
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DELAY(100000);
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#endif
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tp->t_init_in.c_iflag = TTYDEF_IFLAG;
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tp->t_init_in.c_oflag = TTYDEF_OFLAG;
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tp->t_init_in.c_cflag = TTYDEF_CFLAG | CLOCAL;
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tp->t_init_in.c_lflag = TTYDEF_LFLAG;
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tp->t_lock_out.c_cflag = tp->t_lock_in.c_cflag = CLOCAL;
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tp->t_lock_out.c_ispeed = tp->t_lock_out.c_ospeed =
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tp->t_lock_in.c_ispeed = tp->t_lock_in.c_ospeed =
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tp->t_init_in.c_ispeed = tp->t_init_in.c_ospeed = comdefaultrate;
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} else
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tp->t_init_in.c_ispeed = tp->t_init_in.c_ospeed = TTYDEF_SPEED;
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if (siosetwater(com, tp->t_init_in.c_ispeed) != 0) {
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if (unit == comconsole)
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ttyconsolemode(tp, comdefaultrate);
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error = siosetwater(com, tp->t_init_in.c_ispeed);
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mtx_unlock_spin(&sio_lock);
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if (error) {
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/*
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* Leave i/o resources allocated if this is a `cn'-level
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* console, so that other devices can't snarf them.
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@ -1558,14 +1522,10 @@ sioattach(dev, xrid, rclk)
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bus_release_resource(dev, SYS_RES_IOPORT, rid, port);
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return (ENOMEM);
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}
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mtx_unlock_spin(&sio_lock);
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termioschars(&tp->t_init_in);
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tp->t_init_out = tp->t_init_in;
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/* attempt to determine UART type */
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printf("sio%d: type", unit);
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#ifndef PC98
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if (!COM_ISMULTIPORT(flags) &&
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!COM_IIR_TXRDYBUG(flags) && !COM_NOSCR(flags)) {
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@ -1766,10 +1726,10 @@ determined_type: ;
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swi_add(&clk_ithd, "sio", siopoll, NULL, SWI_CLOCK, 0,
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&sio_slow_ih);
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}
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minorbase = unit2minor(unit);
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ttycreate(tp, NULL, 0, MINOR_CALLOUT, "d%r", unit);
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com->flags = flags;
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com->pps.ppscap = PPS_CAPTUREASSERT | PPS_CAPTURECLEAR;
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tp->t_pps = &com->pps;
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if (COM_PPSCTS(flags))
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com->pps_bit = MSR_CTS;
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@ -1804,18 +1764,19 @@ determined_type: ;
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#endif
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}
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/* We're ready, open the doors... */
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ttycreate(tp, NULL, unit, MINOR_CALLOUT, "d%r", unit);
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return (0);
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}
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static int
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sioopen(struct tty *tp, struct cdev *dev)
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comopen(struct tty *tp, struct cdev *dev)
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{
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struct com_s *com;
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int i;
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com = tp->t_sc;
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#ifdef PC98
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if (!IS_8251(com->pc98_if_type))
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#endif
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com->poll = com->no_irq;
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com->poll_output = com->loses_outints;
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#ifdef PC98
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@ -1829,11 +1790,7 @@ sioopen(struct tty *tp, struct cdev *dev)
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}
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}
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#endif
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/*
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* XXX we should goto open_top if comparam() slept.
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*/
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if (com->hasfifo) {
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int i;
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/*
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* (Re)enable and drain fifos.
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*
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@ -1878,10 +1835,9 @@ sioopen(struct tty *tp, struct cdev *dev)
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DELAY(50);
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(void) inb(com->data_port);
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}
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if (i == 500) {
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if (i == 500)
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return (EIO);
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}
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}
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mtx_lock_spin(&sio_lock);
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#ifdef PC98
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@ -1909,6 +1865,7 @@ sioopen(struct tty *tp, struct cdev *dev)
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#endif
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mtx_unlock_spin(&sio_lock);
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siosettimeout();
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/* XXX: should be generic ? */
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#ifdef PC98
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if ((IS_8251(com->pc98_if_type) &&
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(pc98_get_modem_status(com) & TIOCM_CAR)) ||
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@ -1924,17 +1881,16 @@ sioopen(struct tty *tp, struct cdev *dev)
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}
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static void
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sioclose(struct tty *tp)
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comclose(tp)
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struct tty *tp;
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{
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struct com_s *com;
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int s;
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struct com_s *com;
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com = tp->t_sc;
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s = spltty();
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com = tp->t_sc;
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com->poll = FALSE;
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com->poll_output = FALSE;
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com->do_timestamp = FALSE;
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com->pps.ppsparam.mode = 0;
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#ifdef PC98
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com_send_break_off(com);
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#else
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@ -2015,6 +1971,7 @@ sioclose(struct tty *tp)
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tp->t_actout = FALSE;
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wakeup(&tp->t_actout);
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wakeup(TSA_CARR_ON(tp)); /* restart any wopeners */
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siosettimeout();
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splx(s);
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}
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@ -2456,8 +2413,8 @@ status_read:;
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if (ioptr >= com->ibufend)
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CE_RECORD(com, CE_INTERRUPT_BUF_OVERFLOW);
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else {
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if (com->do_timestamp)
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microtime(&com->timestamp);
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if (com->tp != NULL && com->tp->t_do_timestamp)
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microtime(&com->tp->t_timestamp);
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++com_events;
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swi_sched(sio_slow_ih, SWI_DELAY);
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#if 0 /* for testing input latency vs efficiency */
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@ -3250,9 +3207,7 @@ comstop(tp, rw)
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}
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static int
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commodem(tp, sigon, sigoff)
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struct tty *tp;
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int sigon, sigoff;
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commodem(struct tty *tp, int sigon, int sigoff)
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{
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struct com_s *com;
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int bitand, bitor, msr;
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@ -126,7 +126,6 @@
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#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
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/*
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* Meaning of flags:
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*
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@ -308,8 +307,6 @@ struct com_s {
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struct tty *tp; /* cross reference */
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bool_t do_timestamp;
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struct timeval timestamp;
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struct pps_state pps;
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int pps_bit;
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#ifdef ALT_BREAK_TO_DEBUGGER
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@ -349,6 +346,8 @@ static int espattach(struct com_s *com, Port_t esp_port);
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static void combreak(struct tty *tp, int sig);
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static timeout_t siobusycheck;
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static u_int siodivisor(u_long rclk, speed_t speed);
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static void comclose(struct tty *tp);
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static int comopen(struct tty *tp, struct cdev *dev);
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static void sioinput(struct com_s *com);
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static void siointr1(struct com_s *com);
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static void siointr(void *arg);
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@ -370,9 +369,6 @@ devclass_t sio_devclass;
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#define com_addr(unit) ((struct com_s *) \
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devclass_get_softc(sio_devclass, unit)) /* XXX */
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static t_close_t sioclose;
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static t_open_t sioopen;
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int comconsole = -1;
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static volatile speed_t comdefaultrate = CONSPEED;
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static u_long comdefaultrclk = DEFAULT_RCLK;
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@ -688,10 +684,6 @@ sysctl_machdep_comdefaultrate(SYSCTL_HANDLER_ARGS)
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if (tp == NULL)
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return (ENXIO);
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tp = com->tp;
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if (tp == NULL)
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return (ENXIO);
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/*
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* set the initial and lock rates for /dev/ttydXX and /dev/cuaXX
|
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* (note, the lock rates really are boolean -- if non-zero, disallow
|
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@ -726,8 +718,7 @@ SYSCTL_PROC(_machdep, OID_AUTO, conspeed, CTLTYPE_INT | CTLFLAG_RW,
|
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* read and write do not hang.
|
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*/
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int
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siodetach(dev)
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device_t dev;
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siodetach(device_t dev)
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{
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struct com_s *com;
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@ -738,7 +729,7 @@ siodetach(dev)
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}
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com->gone = TRUE;
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if (com->tp)
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ttygone(com->tp);
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ttyfree(com->tp);
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if (com->irqres) {
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bus_teardown_intr(dev, com->irqres, com->cookie);
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bus_release_resource(dev, SYS_RES_IRQ, 0, com->irqres);
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@ -746,21 +737,15 @@ siodetach(dev)
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if (com->ioportres)
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bus_release_resource(dev, SYS_RES_IOPORT, com->ioportrid,
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com->ioportres);
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if (com->tp && (com->tp->t_state & TS_ISOPEN)) {
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device_printf(dev, "still open, forcing close\n");
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ttyfree(com->tp);
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} else {
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if (com->ibuf != NULL)
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free(com->ibuf, M_DEVBUF);
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#ifdef PC98
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if (com->obuf1 != NULL)
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free(com->obuf1, M_DEVBUF);
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#endif
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device_set_softc(dev, NULL);
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if (com->tp)
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ttyfree(com->tp);
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free(com, M_DEVBUF);
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}
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return (0);
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}
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@ -1380,12 +1365,12 @@ sioattach(dev, xrid, rclk)
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Port_t *espp;
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#endif
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Port_t iobase;
|
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int minorbase;
|
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int unit;
|
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u_int flags;
|
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int rid;
|
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struct resource *port;
|
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int ret;
|
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int error;
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struct tty *tp;
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#ifdef PC98
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u_char *obuf;
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@ -1504,14 +1489,15 @@ sioattach(dev, xrid, rclk)
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com->line_status_port = iobase + com_lsr;
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com->modem_status_port = iobase + com_msr;
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#endif
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tp = com->tp = ttyalloc();
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tp->t_open = sioopen;
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tp->t_close = sioclose;
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tp->t_oproc = comstart;
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tp->t_param = comparam;
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tp->t_stop = comstop;
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tp->t_modem = commodem;
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tp->t_break = combreak;
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tp->t_close = comclose;
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tp->t_open = comopen;
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tp->t_sc = com;
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#ifdef PC98
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@ -1523,33 +1509,11 @@ sioattach(dev, xrid, rclk)
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#endif
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com->rclk = rclk;
|
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|
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/*
|
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* We don't use all the flags from <sys/ttydefaults.h> since they
|
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* are only relevant for logins. It's important to have echo off
|
||||
* initially so that the line doesn't start blathering before the
|
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* echo flag can be turned off.
|
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*/
|
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tp->t_init_in.c_iflag = 0;
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tp->t_init_in.c_oflag = 0;
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tp->t_init_in.c_cflag = TTYDEF_CFLAG;
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tp->t_init_in.c_lflag = 0;
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if (unit == comconsole) {
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#ifdef PC98
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if (IS_8251(com->pc98_if_type))
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DELAY(100000);
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#endif
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tp->t_init_in.c_iflag = TTYDEF_IFLAG;
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tp->t_init_in.c_oflag = TTYDEF_OFLAG;
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tp->t_init_in.c_cflag = TTYDEF_CFLAG | CLOCAL;
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tp->t_init_in.c_lflag = TTYDEF_LFLAG;
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tp->t_lock_out.c_cflag = tp->t_lock_in.c_cflag = CLOCAL;
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tp->t_lock_out.c_ispeed = tp->t_lock_out.c_ospeed =
|
||||
tp->t_lock_in.c_ispeed = tp->t_lock_in.c_ospeed =
|
||||
tp->t_init_in.c_ispeed = tp->t_init_in.c_ospeed = comdefaultrate;
|
||||
} else
|
||||
tp->t_init_in.c_ispeed = tp->t_init_in.c_ospeed = TTYDEF_SPEED;
|
||||
if (siosetwater(com, tp->t_init_in.c_ispeed) != 0) {
|
||||
if (unit == comconsole)
|
||||
ttyconsolemode(tp, comdefaultrate);
|
||||
error = siosetwater(com, tp->t_init_in.c_ispeed);
|
||||
mtx_unlock_spin(&sio_lock);
|
||||
if (error) {
|
||||
/*
|
||||
* Leave i/o resources allocated if this is a `cn'-level
|
||||
* console, so that other devices can't snarf them.
|
||||
@ -1558,14 +1522,10 @@ sioattach(dev, xrid, rclk)
|
||||
bus_release_resource(dev, SYS_RES_IOPORT, rid, port);
|
||||
return (ENOMEM);
|
||||
}
|
||||
mtx_unlock_spin(&sio_lock);
|
||||
termioschars(&tp->t_init_in);
|
||||
tp->t_init_out = tp->t_init_in;
|
||||
|
||||
/* attempt to determine UART type */
|
||||
printf("sio%d: type", unit);
|
||||
|
||||
|
||||
#ifndef PC98
|
||||
if (!COM_ISMULTIPORT(flags) &&
|
||||
!COM_IIR_TXRDYBUG(flags) && !COM_NOSCR(flags)) {
|
||||
@ -1766,10 +1726,10 @@ determined_type: ;
|
||||
swi_add(&clk_ithd, "sio", siopoll, NULL, SWI_CLOCK, 0,
|
||||
&sio_slow_ih);
|
||||
}
|
||||
minorbase = unit2minor(unit);
|
||||
ttycreate(tp, NULL, 0, MINOR_CALLOUT, "d%r", unit);
|
||||
|
||||
com->flags = flags;
|
||||
com->pps.ppscap = PPS_CAPTUREASSERT | PPS_CAPTURECLEAR;
|
||||
tp->t_pps = &com->pps;
|
||||
|
||||
if (COM_PPSCTS(flags))
|
||||
com->pps_bit = MSR_CTS;
|
||||
@ -1804,18 +1764,19 @@ determined_type: ;
|
||||
#endif
|
||||
}
|
||||
|
||||
/* We're ready, open the doors... */
|
||||
ttycreate(tp, NULL, unit, MINOR_CALLOUT, "d%r", unit);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
sioopen(struct tty *tp, struct cdev *dev)
|
||||
comopen(struct tty *tp, struct cdev *dev)
|
||||
{
|
||||
struct com_s *com;
|
||||
int i;
|
||||
|
||||
com = tp->t_sc;
|
||||
#ifdef PC98
|
||||
if (!IS_8251(com->pc98_if_type))
|
||||
#endif
|
||||
com->poll = com->no_irq;
|
||||
com->poll_output = com->loses_outints;
|
||||
#ifdef PC98
|
||||
@ -1829,11 +1790,7 @@ sioopen(struct tty *tp, struct cdev *dev)
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/*
|
||||
* XXX we should goto open_top if comparam() slept.
|
||||
*/
|
||||
if (com->hasfifo) {
|
||||
int i;
|
||||
/*
|
||||
* (Re)enable and drain fifos.
|
||||
*
|
||||
@ -1878,10 +1835,9 @@ sioopen(struct tty *tp, struct cdev *dev)
|
||||
DELAY(50);
|
||||
(void) inb(com->data_port);
|
||||
}
|
||||
if (i == 500) {
|
||||
if (i == 500)
|
||||
return (EIO);
|
||||
}
|
||||
}
|
||||
|
||||
mtx_lock_spin(&sio_lock);
|
||||
#ifdef PC98
|
||||
@ -1909,6 +1865,7 @@ sioopen(struct tty *tp, struct cdev *dev)
|
||||
#endif
|
||||
mtx_unlock_spin(&sio_lock);
|
||||
siosettimeout();
|
||||
/* XXX: should be generic ? */
|
||||
#ifdef PC98
|
||||
if ((IS_8251(com->pc98_if_type) &&
|
||||
(pc98_get_modem_status(com) & TIOCM_CAR)) ||
|
||||
@ -1924,17 +1881,16 @@ sioopen(struct tty *tp, struct cdev *dev)
|
||||
}
|
||||
|
||||
static void
|
||||
sioclose(struct tty *tp)
|
||||
comclose(tp)
|
||||
struct tty *tp;
|
||||
{
|
||||
struct com_s *com;
|
||||
int s;
|
||||
struct com_s *com;
|
||||
|
||||
com = tp->t_sc;
|
||||
s = spltty();
|
||||
com = tp->t_sc;
|
||||
com->poll = FALSE;
|
||||
com->poll_output = FALSE;
|
||||
com->do_timestamp = FALSE;
|
||||
com->pps.ppsparam.mode = 0;
|
||||
#ifdef PC98
|
||||
com_send_break_off(com);
|
||||
#else
|
||||
@ -2015,6 +1971,7 @@ sioclose(struct tty *tp)
|
||||
tp->t_actout = FALSE;
|
||||
wakeup(&tp->t_actout);
|
||||
wakeup(TSA_CARR_ON(tp)); /* restart any wopeners */
|
||||
siosettimeout();
|
||||
splx(s);
|
||||
}
|
||||
|
||||
@ -2456,8 +2413,8 @@ status_read:;
|
||||
if (ioptr >= com->ibufend)
|
||||
CE_RECORD(com, CE_INTERRUPT_BUF_OVERFLOW);
|
||||
else {
|
||||
if (com->do_timestamp)
|
||||
microtime(&com->timestamp);
|
||||
if (com->tp != NULL && com->tp->t_do_timestamp)
|
||||
microtime(&com->tp->t_timestamp);
|
||||
++com_events;
|
||||
swi_sched(sio_slow_ih, SWI_DELAY);
|
||||
#if 0 /* for testing input latency vs efficiency */
|
||||
@ -3250,9 +3207,7 @@ comstop(tp, rw)
|
||||
}
|
||||
|
||||
static int
|
||||
commodem(tp, sigon, sigoff)
|
||||
struct tty *tp;
|
||||
int sigon, sigoff;
|
||||
commodem(struct tty *tp, int sigon, int sigoff)
|
||||
{
|
||||
struct com_s *com;
|
||||
int bitand, bitor, msr;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user