Enabled dynamically sized tty input buffers (with enough buffering
for 1 second's worth of input) and larger tty output buffers. The interrupt-level buffers are still too small for speeds above 115200 bps (only a little too small for 230400 bps if RTS flow control is enabled). Don't call ttsetwater() explicitly in open(). It is now called for the TTYDISC l_open() and should be static. Don't attempt to register the cdevsw more than once.
This commit is contained in:
Bruce Evans
parent
5cf40a698b
commit
3fd2d29816
@ -27,7 +27,7 @@
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: cy.c,v 1.67 1998/08/13 13:54:10 bde Exp $
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* $Id: cy.c,v 1.68 1998/08/13 19:03:22 bde Exp $
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*/
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#include "opt_compat.h"
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@ -153,7 +153,6 @@
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#define CD1400_xIVR_CHAN 0x1F
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#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
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#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
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#define RS_IBUFSIZE 256
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#define CALLOUT_MASK 0x80
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@ -390,7 +389,7 @@ static struct cdevsw sio_cdevsw = {
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static int comconsole = -1;
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static speed_t comdefaultrate = TTYDEF_SPEED;
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static u_int com_events; /* input chars + weighted output completions */
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static bool_t siopoll_registered;
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static bool_t sio_registered;
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static int sio_timeout;
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static int sio_timeouts_until_log;
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static struct callout_handle sio_timeout_handle
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@ -604,8 +603,6 @@ cyattach_common(cy_iobase, cy_align)
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com_addr(unit) = com;
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splx(s);
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dev = makedev(CDEV_MAJOR, 0);
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cdevsw_add(&dev, &sio_cdevsw, NULL);
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#ifdef DEVFS
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com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
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unit, DV_CHR,
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@ -634,9 +631,11 @@ cyattach_common(cy_iobase, cy_align)
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#endif
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}
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}
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if (!siopoll_registered) {
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if (!sio_registered) {
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dev = makedev(CDEV_MAJOR, 0);
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cdevsw_add(&dev, &sio_cdevsw, NULL);
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register_swi(SWI_TTY, siopoll);
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siopoll_registered = TRUE;
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sio_registered = TRUE;
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}
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/* ensure an edge for the next interrupt */
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@ -721,6 +720,9 @@ sioopen(dev, flag, mode, p)
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tp->t_dev = dev;
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tp->t_termios = mynor & CALLOUT_MASK
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? com->it_out : com->it_in;
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tp->t_ififosize = 2 * RS_IBUFSIZE;
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tp->t_ispeedwat = (speed_t)-1;
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tp->t_ospeedwat = (speed_t)-1;
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#if 0
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(void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
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com->poll = com->no_irq;
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@ -759,7 +761,6 @@ sioopen(dev, flag, mode, p)
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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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ttsetwater(tp);
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#if 0
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if (com->hasfifo) {
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/*
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@ -1675,7 +1676,7 @@ siopoll()
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* call overhead).
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*/
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if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
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if (tp->t_rawq.c_cc + incc >= RB_I_HIGH_WATER
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if (tp->t_rawq.c_cc + incc > tp->t_ihiwat
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&& (com->state & CS_RTS_IFLOW
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|| tp->t_iflag & IXOFF)
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&& !(tp->t_state & TS_TBLOCK))
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@ -27,7 +27,7 @@
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: cy.c,v 1.67 1998/08/13 13:54:10 bde Exp $
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* $Id: cy.c,v 1.68 1998/08/13 19:03:22 bde Exp $
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*/
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#include "opt_compat.h"
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@ -153,7 +153,6 @@
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#define CD1400_xIVR_CHAN 0x1F
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#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
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#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
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#define RS_IBUFSIZE 256
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#define CALLOUT_MASK 0x80
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@ -390,7 +389,7 @@ static struct cdevsw sio_cdevsw = {
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static int comconsole = -1;
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static speed_t comdefaultrate = TTYDEF_SPEED;
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static u_int com_events; /* input chars + weighted output completions */
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static bool_t siopoll_registered;
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static bool_t sio_registered;
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static int sio_timeout;
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static int sio_timeouts_until_log;
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static struct callout_handle sio_timeout_handle
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@ -604,8 +603,6 @@ cyattach_common(cy_iobase, cy_align)
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com_addr(unit) = com;
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splx(s);
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dev = makedev(CDEV_MAJOR, 0);
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cdevsw_add(&dev, &sio_cdevsw, NULL);
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#ifdef DEVFS
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com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
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unit, DV_CHR,
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@ -634,9 +631,11 @@ cyattach_common(cy_iobase, cy_align)
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#endif
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}
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}
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if (!siopoll_registered) {
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if (!sio_registered) {
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dev = makedev(CDEV_MAJOR, 0);
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cdevsw_add(&dev, &sio_cdevsw, NULL);
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register_swi(SWI_TTY, siopoll);
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siopoll_registered = TRUE;
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sio_registered = TRUE;
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}
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/* ensure an edge for the next interrupt */
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@ -721,6 +720,9 @@ sioopen(dev, flag, mode, p)
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tp->t_dev = dev;
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tp->t_termios = mynor & CALLOUT_MASK
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? com->it_out : com->it_in;
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tp->t_ififosize = 2 * RS_IBUFSIZE;
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tp->t_ispeedwat = (speed_t)-1;
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tp->t_ospeedwat = (speed_t)-1;
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#if 0
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(void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
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com->poll = com->no_irq;
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@ -759,7 +761,6 @@ sioopen(dev, flag, mode, p)
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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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ttsetwater(tp);
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#if 0
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if (com->hasfifo) {
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/*
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@ -1675,7 +1676,7 @@ siopoll()
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* call overhead).
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*/
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if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
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if (tp->t_rawq.c_cc + incc >= RB_I_HIGH_WATER
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if (tp->t_rawq.c_cc + incc > tp->t_ihiwat
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&& (com->state & CS_RTS_IFLOW
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|| tp->t_iflag & IXOFF)
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&& !(tp->t_state & TS_TBLOCK))
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)com.c 7.5 (Berkeley) 5/16/91
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* $Id: sio.c,v 1.209 1998/07/15 12:18:14 bde Exp $
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* $Id: sio.c,v 1.210 1998/08/11 17:01:32 bde Exp $
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*/
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#include "opt_comconsole.h"
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@ -107,7 +107,6 @@
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#endif /* SMP */
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#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
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#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
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#define RS_IBUFSIZE 256
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#define CALLOUT_MASK 0x80
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@ -356,7 +355,7 @@ static int comconsole = -1;
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static volatile speed_t comdefaultrate = CONSPEED;
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static u_int com_events; /* input chars + weighted output completions */
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static Port_t siocniobase;
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static bool_t siopoll_registered;
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static bool_t sio_registered;
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static int sio_timeout;
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static int sio_timeouts_until_log;
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static struct callout_handle sio_timeout_handle
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@ -1071,8 +1070,6 @@ determined_type: ;
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com_addr(unit) = com;
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splx(s);
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dev = makedev(CDEV_MAJOR, 0);
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cdevsw_add(&dev, &sio_cdevsw, NULL);
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#ifdef DEVFS
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com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
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unit, DV_CHR,
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@ -1093,9 +1090,11 @@ determined_type: ;
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unit | CALLOUT_MASK | CONTROL_LOCK_STATE, DV_CHR,
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UID_UUCP, GID_DIALER, 0660, "cuala%r", unit);
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#endif
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if (!siopoll_registered) {
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if (!sio_registered) {
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dev = makedev(CDEV_MAJOR, 0);
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cdevsw_add(&dev, &sio_cdevsw, NULL);
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register_swi(SWI_TTY, siopoll);
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siopoll_registered = TRUE;
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sio_registered = TRUE;
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}
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com->id_flags = isdp->id_flags; /* Heritate id_flags for later */
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return (1);
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@ -1183,6 +1182,9 @@ sioopen(dev, flag, mode, p)
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tp->t_dev = dev;
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tp->t_termios = mynor & CALLOUT_MASK
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? com->it_out : com->it_in;
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tp->t_ififosize = 2 * RS_IBUFSIZE;
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tp->t_ispeedwat = (speed_t)-1;
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tp->t_ospeedwat = (speed_t)-1;
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(void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
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com->poll = com->no_irq;
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com->poll_output = com->loses_outints;
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@ -1194,7 +1196,6 @@ sioopen(dev, flag, mode, p)
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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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ttsetwater(tp);
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iobase = com->iobase;
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if (com->hasfifo) {
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/*
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@ -1976,7 +1977,7 @@ siopoll()
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* call overhead).
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*/
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if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
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if (tp->t_rawq.c_cc + incc >= RB_I_HIGH_WATER
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if (tp->t_rawq.c_cc + incc > tp->t_ihiwat
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&& (com->state & CS_RTS_IFLOW
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|| tp->t_iflag & IXOFF)
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&& !(tp->t_state & TS_TBLOCK))
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@ -27,7 +27,7 @@
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: cy.c,v 1.67 1998/08/13 13:54:10 bde Exp $
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* $Id: cy.c,v 1.68 1998/08/13 19:03:22 bde Exp $
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*/
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#include "opt_compat.h"
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@ -153,7 +153,6 @@
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#define CD1400_xIVR_CHAN 0x1F
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#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
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#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
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#define RS_IBUFSIZE 256
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#define CALLOUT_MASK 0x80
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@ -390,7 +389,7 @@ static struct cdevsw sio_cdevsw = {
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static int comconsole = -1;
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static speed_t comdefaultrate = TTYDEF_SPEED;
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static u_int com_events; /* input chars + weighted output completions */
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static bool_t siopoll_registered;
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static bool_t sio_registered;
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static int sio_timeout;
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static int sio_timeouts_until_log;
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static struct callout_handle sio_timeout_handle
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@ -604,8 +603,6 @@ cyattach_common(cy_iobase, cy_align)
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com_addr(unit) = com;
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splx(s);
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dev = makedev(CDEV_MAJOR, 0);
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cdevsw_add(&dev, &sio_cdevsw, NULL);
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#ifdef DEVFS
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com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
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unit, DV_CHR,
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@ -634,9 +631,11 @@ cyattach_common(cy_iobase, cy_align)
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#endif
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}
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}
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if (!siopoll_registered) {
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if (!sio_registered) {
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dev = makedev(CDEV_MAJOR, 0);
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cdevsw_add(&dev, &sio_cdevsw, NULL);
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register_swi(SWI_TTY, siopoll);
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siopoll_registered = TRUE;
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sio_registered = TRUE;
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}
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/* ensure an edge for the next interrupt */
|
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@ -721,6 +720,9 @@ sioopen(dev, flag, mode, p)
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tp->t_dev = dev;
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tp->t_termios = mynor & CALLOUT_MASK
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? com->it_out : com->it_in;
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tp->t_ififosize = 2 * RS_IBUFSIZE;
|
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tp->t_ispeedwat = (speed_t)-1;
|
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tp->t_ospeedwat = (speed_t)-1;
|
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#if 0
|
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(void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
|
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com->poll = com->no_irq;
|
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@ -759,7 +761,6 @@ sioopen(dev, flag, mode, p)
|
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/*
|
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* XXX we should goto open_top if comparam() slept.
|
||||
*/
|
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ttsetwater(tp);
|
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#if 0
|
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if (com->hasfifo) {
|
||||
/*
|
||||
@ -1675,7 +1676,7 @@ siopoll()
|
||||
* call overhead).
|
||||
*/
|
||||
if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
|
||||
if (tp->t_rawq.c_cc + incc >= RB_I_HIGH_WATER
|
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if (tp->t_rawq.c_cc + incc > tp->t_ihiwat
|
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&& (com->state & CS_RTS_IFLOW
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|| tp->t_iflag & IXOFF)
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&& !(tp->t_state & TS_TBLOCK))
|
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|
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
|
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*
|
||||
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
|
||||
* $Id: sio.c,v 1.209 1998/07/15 12:18:14 bde Exp $
|
||||
* $Id: sio.c,v 1.210 1998/08/11 17:01:32 bde Exp $
|
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*/
|
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|
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#include "opt_comconsole.h"
|
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@ -107,7 +107,6 @@
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#endif /* SMP */
|
||||
|
||||
#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
|
||||
#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
|
||||
#define RS_IBUFSIZE 256
|
||||
|
||||
#define CALLOUT_MASK 0x80
|
||||
@ -356,7 +355,7 @@ static int comconsole = -1;
|
||||
static volatile speed_t comdefaultrate = CONSPEED;
|
||||
static u_int com_events; /* input chars + weighted output completions */
|
||||
static Port_t siocniobase;
|
||||
static bool_t siopoll_registered;
|
||||
static bool_t sio_registered;
|
||||
static int sio_timeout;
|
||||
static int sio_timeouts_until_log;
|
||||
static struct callout_handle sio_timeout_handle
|
||||
@ -1071,8 +1070,6 @@ determined_type: ;
|
||||
com_addr(unit) = com;
|
||||
splx(s);
|
||||
|
||||
dev = makedev(CDEV_MAJOR, 0);
|
||||
cdevsw_add(&dev, &sio_cdevsw, NULL);
|
||||
#ifdef DEVFS
|
||||
com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
|
||||
unit, DV_CHR,
|
||||
@ -1093,9 +1090,11 @@ determined_type: ;
|
||||
unit | CALLOUT_MASK | CONTROL_LOCK_STATE, DV_CHR,
|
||||
UID_UUCP, GID_DIALER, 0660, "cuala%r", unit);
|
||||
#endif
|
||||
if (!siopoll_registered) {
|
||||
if (!sio_registered) {
|
||||
dev = makedev(CDEV_MAJOR, 0);
|
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cdevsw_add(&dev, &sio_cdevsw, NULL);
|
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register_swi(SWI_TTY, siopoll);
|
||||
siopoll_registered = TRUE;
|
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sio_registered = TRUE;
|
||||
}
|
||||
com->id_flags = isdp->id_flags; /* Heritate id_flags for later */
|
||||
return (1);
|
||||
@ -1183,6 +1182,9 @@ sioopen(dev, flag, mode, p)
|
||||
tp->t_dev = dev;
|
||||
tp->t_termios = mynor & CALLOUT_MASK
|
||||
? com->it_out : com->it_in;
|
||||
tp->t_ififosize = 2 * RS_IBUFSIZE;
|
||||
tp->t_ispeedwat = (speed_t)-1;
|
||||
tp->t_ospeedwat = (speed_t)-1;
|
||||
(void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
|
||||
com->poll = com->no_irq;
|
||||
com->poll_output = com->loses_outints;
|
||||
@ -1194,7 +1196,6 @@ sioopen(dev, flag, mode, p)
|
||||
/*
|
||||
* XXX we should goto open_top if comparam() slept.
|
||||
*/
|
||||
ttsetwater(tp);
|
||||
iobase = com->iobase;
|
||||
if (com->hasfifo) {
|
||||
/*
|
||||
@ -1976,7 +1977,7 @@ siopoll()
|
||||
* call overhead).
|
||||
*/
|
||||
if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
|
||||
if (tp->t_rawq.c_cc + incc >= RB_I_HIGH_WATER
|
||||
if (tp->t_rawq.c_cc + incc > tp->t_ihiwat
|
||||
&& (com->state & CS_RTS_IFLOW
|
||||
|| tp->t_iflag & IXOFF)
|
||||
&& !(tp->t_state & TS_TBLOCK))
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
|
||||
* $Id: sio.c,v 1.209 1998/07/15 12:18:14 bde Exp $
|
||||
* $Id: sio.c,v 1.210 1998/08/11 17:01:32 bde Exp $
|
||||
*/
|
||||
|
||||
#include "opt_comconsole.h"
|
||||
@ -107,7 +107,6 @@
|
||||
#endif /* SMP */
|
||||
|
||||
#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
|
||||
#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
|
||||
#define RS_IBUFSIZE 256
|
||||
|
||||
#define CALLOUT_MASK 0x80
|
||||
@ -356,7 +355,7 @@ static int comconsole = -1;
|
||||
static volatile speed_t comdefaultrate = CONSPEED;
|
||||
static u_int com_events; /* input chars + weighted output completions */
|
||||
static Port_t siocniobase;
|
||||
static bool_t siopoll_registered;
|
||||
static bool_t sio_registered;
|
||||
static int sio_timeout;
|
||||
static int sio_timeouts_until_log;
|
||||
static struct callout_handle sio_timeout_handle
|
||||
@ -1071,8 +1070,6 @@ determined_type: ;
|
||||
com_addr(unit) = com;
|
||||
splx(s);
|
||||
|
||||
dev = makedev(CDEV_MAJOR, 0);
|
||||
cdevsw_add(&dev, &sio_cdevsw, NULL);
|
||||
#ifdef DEVFS
|
||||
com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
|
||||
unit, DV_CHR,
|
||||
@ -1093,9 +1090,11 @@ determined_type: ;
|
||||
unit | CALLOUT_MASK | CONTROL_LOCK_STATE, DV_CHR,
|
||||
UID_UUCP, GID_DIALER, 0660, "cuala%r", unit);
|
||||
#endif
|
||||
if (!siopoll_registered) {
|
||||
if (!sio_registered) {
|
||||
dev = makedev(CDEV_MAJOR, 0);
|
||||
cdevsw_add(&dev, &sio_cdevsw, NULL);
|
||||
register_swi(SWI_TTY, siopoll);
|
||||
siopoll_registered = TRUE;
|
||||
sio_registered = TRUE;
|
||||
}
|
||||
com->id_flags = isdp->id_flags; /* Heritate id_flags for later */
|
||||
return (1);
|
||||
@ -1183,6 +1182,9 @@ sioopen(dev, flag, mode, p)
|
||||
tp->t_dev = dev;
|
||||
tp->t_termios = mynor & CALLOUT_MASK
|
||||
? com->it_out : com->it_in;
|
||||
tp->t_ififosize = 2 * RS_IBUFSIZE;
|
||||
tp->t_ispeedwat = (speed_t)-1;
|
||||
tp->t_ospeedwat = (speed_t)-1;
|
||||
(void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
|
||||
com->poll = com->no_irq;
|
||||
com->poll_output = com->loses_outints;
|
||||
@ -1194,7 +1196,6 @@ sioopen(dev, flag, mode, p)
|
||||
/*
|
||||
* XXX we should goto open_top if comparam() slept.
|
||||
*/
|
||||
ttsetwater(tp);
|
||||
iobase = com->iobase;
|
||||
if (com->hasfifo) {
|
||||
/*
|
||||
@ -1976,7 +1977,7 @@ siopoll()
|
||||
* call overhead).
|
||||
*/
|
||||
if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
|
||||
if (tp->t_rawq.c_cc + incc >= RB_I_HIGH_WATER
|
||||
if (tp->t_rawq.c_cc + incc > tp->t_ihiwat
|
||||
&& (com->state & CS_RTS_IFLOW
|
||||
|| tp->t_iflag & IXOFF)
|
||||
&& !(tp->t_state & TS_TBLOCK))
|
||||
|
||||
Loading…
Reference in New Issue
Block a user