Attempt to make cy.c MP-safe.
I have no way of testing this one, first SMP/cy user please let me know... It is my belief that sio and cy are the only FAST_INTR() ISRs. If this is a bad assumption please educate me.
This commit is contained in:
Steve Passe
parent
7b185ef809
commit
a2c1225d0e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=28443
@ -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 1.47 1997/03/24 11:23:42 bde Exp $
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* $Id: cy.c,v 1.1 1997/08/20 05:59:24 smp Exp smp $
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*/
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#include "cy.h"
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@ -84,6 +84,15 @@
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#include <machine/clock.h>
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#ifdef SMP
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#include <machine/smp.h>
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#define COM_LOCK() s_lock(&com_lock)
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#define COM_UNLOCK() s_unlock(&com_lock)
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#else
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#define COM_LOCK()
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#define COM_UNLOCK()
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#endif /* SMP */
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#include <i386/isa/isa_device.h>
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#include <i386/isa/cyreg.h>
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#include <i386/isa/ic/cd1400.h>
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@ -756,22 +765,26 @@ sioopen(dev, flag, mode, p)
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}
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disable_intr();
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COM_LOCK();
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(void) inb(com->line_status_port);
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(void) inb(com->data_port);
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com->prev_modem_status = com->last_modem_status
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= inb(com->modem_status_port);
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outb(iobase + com_ier, IER_ERXRDY | IER_ETXRDY | IER_ERLS
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| IER_EMSC);
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COM_UNLOCK();
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enable_intr();
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#else /* !0 */
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/* XXX raise RTS too */
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(void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
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disable_intr();
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COM_LOCK();
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com->prev_modem_status = com->last_modem_status
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= cd_inb(iobase, CD1400_MSVR2, com->cy_align);
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cd_outb(iobase, CD1400_SRER, com->cy_align,
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com->intr_enable
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= CD1400_SRER_MDMCH | CD1400_SRER_RXDATA);
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COM_UNLOCK();
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enable_intr();
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#endif /* 0 */
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/*
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@ -873,7 +886,9 @@ comhardclose(com)
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outb(iobase + com_ier, 0);
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#else
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disable_intr();
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COM_LOCK();
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cd_outb(iobase, CD1400_SRER, com->cy_align, com->intr_enable = 0);
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COM_UNLOCK();
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enable_intr();
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#endif
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tp = com->tp;
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@ -1531,6 +1546,7 @@ siopoll()
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* loop.
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*/
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disable_intr();
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COM_LOCK();
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incc = com->iptr - com->ibuf;
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com->iptr = com->ibuf;
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if (com->state & CS_CHECKMSR) {
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@ -1538,6 +1554,7 @@ siopoll()
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com->state &= ~CS_CHECKMSR;
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}
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com_events -= incc;
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COM_UNLOCK();
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enable_intr();
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if (incc != 0)
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log(LOG_DEBUG,
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@ -1553,6 +1570,7 @@ siopoll()
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} else {
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buf = ibuf;
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disable_intr();
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COM_LOCK();
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incc = com->iptr - buf;
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com_events -= incc;
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if (ibuf == com->ibuf1)
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@ -1581,6 +1599,7 @@ siopoll()
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cd_outb(iobase, CD1400_MSVR1, com->cy_align,
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com->mcr_image |= MCR_RTS);
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#endif
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COM_UNLOCK();
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enable_intr();
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com->ibuf = ibuf;
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}
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@ -1589,11 +1608,13 @@ siopoll()
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u_char delta_modem_status;
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disable_intr();
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COM_LOCK();
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delta_modem_status = com->last_modem_status
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^ com->prev_modem_status;
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com->prev_modem_status = com->last_modem_status;
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com_events -= LOTS_OF_EVENTS;
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com->state &= ~CS_CHECKMSR;
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COM_UNLOCK();
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enable_intr();
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if (delta_modem_status & MSR_DCD)
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(*linesw[tp->t_line].l_modem)
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@ -1601,10 +1622,12 @@ siopoll()
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}
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if (com->state & CS_ODONE) {
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disable_intr();
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COM_LOCK();
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com_events -= LOTS_OF_EVENTS;
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com->state &= ~CS_ODONE;
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if (!(com->state & CS_BUSY))
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com->tp->t_state &= ~TS_BUSY;
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COM_UNLOCK();
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enable_intr();
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(*linesw[tp->t_line].l_start)(tp);
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}
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@ -1947,6 +1970,7 @@ comparam(tp, t)
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* to change all atomically.
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*/
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disable_intr();
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COM_LOCK();
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com->state &= ~CS_TTGO;
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if (!(tp->t_state & TS_TTSTOP))
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@ -2008,6 +2032,7 @@ comparam(tp, t)
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com->intr_enable &= ~CD1400_SRER_TXRDY);
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}
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COM_UNLOCK();
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enable_intr();
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splx(s);
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comstart(tp);
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@ -2037,6 +2062,7 @@ comstart(tp)
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#endif
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disable_intr();
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COM_LOCK();
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cd_outb(iobase, CD1400_CAR, com->cy_align, unit & CD1400_CAR_CHAN);
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if (tp->t_state & TS_TTSTOP) {
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com->state &= ~CS_TTGO;
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@ -2068,6 +2094,7 @@ comstart(tp)
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com->mcr_image |= MCR_RTS);
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#endif
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}
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COM_UNLOCK();
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enable_intr();
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if (tp->t_state & (TS_TIMEOUT | TS_TTSTOP)) {
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splx(s);
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@ -2087,6 +2114,7 @@ comstart(tp)
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com->obufs[0].l_next = NULL;
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com->obufs[0].l_queued = TRUE;
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disable_intr();
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COM_LOCK();
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if (com->state & CS_BUSY) {
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qp = com->obufq.l_next;
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while ((next = qp->l_next) != NULL)
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@ -2103,6 +2131,7 @@ comstart(tp)
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com->intr_enable
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|= CD1400_SRER_TXRDY);
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}
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COM_UNLOCK();
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enable_intr();
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}
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if (tp->t_outq.c_cc != 0 && !com->obufs[1].l_queued) {
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@ -2115,6 +2144,7 @@ comstart(tp)
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com->obufs[1].l_next = NULL;
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com->obufs[1].l_queued = TRUE;
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disable_intr();
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COM_LOCK();
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if (com->state & CS_BUSY) {
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qp = com->obufq.l_next;
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while ((next = qp->l_next) != NULL)
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@ -2131,6 +2161,7 @@ comstart(tp)
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com->intr_enable
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|= CD1400_SRER_TXRDY);
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}
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COM_UNLOCK();
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enable_intr();
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}
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tp->t_state |= TS_BUSY;
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@ -2141,8 +2172,10 @@ comstart(tp)
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#endif
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#if 0
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disable_intr();
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COM_LOCK();
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if (com->state >= (CS_BUSY | CS_TTGO))
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siointr1(com); /* fake interrupt to start output */
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COM_UNLOCK();
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enable_intr();
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#endif
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ttwwakeup(tp);
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@ -2158,6 +2191,7 @@ siostop(tp, rw)
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com = com_addr(DEV_TO_UNIT(tp->t_dev));
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disable_intr();
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COM_LOCK();
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if (rw & FWRITE) {
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com->obufs[0].l_queued = FALSE;
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com->obufs[1].l_queued = FALSE;
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@ -2170,6 +2204,7 @@ siostop(tp, rw)
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com_events -= (com->iptr - com->ibuf);
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com->iptr = com->ibuf;
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}
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COM_UNLOCK();
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enable_intr();
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comstart(tp);
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@ -2240,6 +2275,7 @@ commctl(com, bits, how)
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if (bits & TIOCM_RTS)
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mcr |= MCR_RTS;
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disable_intr();
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COM_LOCK();
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switch (how) {
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case DMSET:
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com->mcr_image = mcr;
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@ -2257,6 +2293,7 @@ commctl(com, bits, how)
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cd_outb(iobase, CD1400_MSVR2, com->cy_align, mcr);
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break;
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}
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COM_UNLOCK();
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enable_intr();
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return (0);
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}
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@ -2319,7 +2356,9 @@ comwakeup(chan)
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if (com != NULL
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&& (com->state >= (CS_BUSY | CS_TTGO) || com->poll)) {
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disable_intr();
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COM_LOCK();
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siointr1(com);
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COM_UNLOCK();
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enable_intr();
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}
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}
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@ -2342,8 +2381,10 @@ comwakeup(chan)
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u_long total;
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disable_intr();
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COM_LOCK();
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delta = com->delta_error_counts[errnum];
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com->delta_error_counts[errnum] = 0;
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COM_UNLOCK();
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enable_intr();
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if (delta == 0)
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continue;
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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 1.47 1997/03/24 11:23:42 bde Exp $
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* $Id: cy.c,v 1.1 1997/08/20 05:59:24 smp Exp smp $
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*/
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#include "cy.h"
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@ -84,6 +84,15 @@
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#include <machine/clock.h>
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#ifdef SMP
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#include <machine/smp.h>
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#define COM_LOCK() s_lock(&com_lock)
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#define COM_UNLOCK() s_unlock(&com_lock)
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#else
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#define COM_LOCK()
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#define COM_UNLOCK()
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#endif /* SMP */
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#include <i386/isa/isa_device.h>
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#include <i386/isa/cyreg.h>
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#include <i386/isa/ic/cd1400.h>
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@ -756,22 +765,26 @@ sioopen(dev, flag, mode, p)
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}
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disable_intr();
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COM_LOCK();
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(void) inb(com->line_status_port);
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(void) inb(com->data_port);
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com->prev_modem_status = com->last_modem_status
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= inb(com->modem_status_port);
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outb(iobase + com_ier, IER_ERXRDY | IER_ETXRDY | IER_ERLS
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| IER_EMSC);
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COM_UNLOCK();
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enable_intr();
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#else /* !0 */
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/* XXX raise RTS too */
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(void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
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disable_intr();
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COM_LOCK();
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com->prev_modem_status = com->last_modem_status
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= cd_inb(iobase, CD1400_MSVR2, com->cy_align);
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cd_outb(iobase, CD1400_SRER, com->cy_align,
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com->intr_enable
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= CD1400_SRER_MDMCH | CD1400_SRER_RXDATA);
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COM_UNLOCK();
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enable_intr();
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#endif /* 0 */
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/*
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@ -873,7 +886,9 @@ comhardclose(com)
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outb(iobase + com_ier, 0);
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#else
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disable_intr();
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COM_LOCK();
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cd_outb(iobase, CD1400_SRER, com->cy_align, com->intr_enable = 0);
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COM_UNLOCK();
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enable_intr();
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#endif
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tp = com->tp;
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@ -1531,6 +1546,7 @@ siopoll()
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* loop.
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*/
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disable_intr();
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COM_LOCK();
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incc = com->iptr - com->ibuf;
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com->iptr = com->ibuf;
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if (com->state & CS_CHECKMSR) {
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@ -1538,6 +1554,7 @@ siopoll()
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com->state &= ~CS_CHECKMSR;
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}
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com_events -= incc;
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COM_UNLOCK();
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enable_intr();
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if (incc != 0)
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log(LOG_DEBUG,
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@ -1553,6 +1570,7 @@ siopoll()
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} else {
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buf = ibuf;
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disable_intr();
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COM_LOCK();
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incc = com->iptr - buf;
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com_events -= incc;
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if (ibuf == com->ibuf1)
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@ -1581,6 +1599,7 @@ siopoll()
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cd_outb(iobase, CD1400_MSVR1, com->cy_align,
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com->mcr_image |= MCR_RTS);
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#endif
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COM_UNLOCK();
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enable_intr();
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com->ibuf = ibuf;
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}
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@ -1589,11 +1608,13 @@ siopoll()
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u_char delta_modem_status;
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disable_intr();
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COM_LOCK();
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delta_modem_status = com->last_modem_status
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^ com->prev_modem_status;
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com->prev_modem_status = com->last_modem_status;
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com_events -= LOTS_OF_EVENTS;
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com->state &= ~CS_CHECKMSR;
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COM_UNLOCK();
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enable_intr();
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if (delta_modem_status & MSR_DCD)
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(*linesw[tp->t_line].l_modem)
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@ -1601,10 +1622,12 @@ siopoll()
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}
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if (com->state & CS_ODONE) {
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disable_intr();
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COM_LOCK();
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com_events -= LOTS_OF_EVENTS;
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com->state &= ~CS_ODONE;
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if (!(com->state & CS_BUSY))
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com->tp->t_state &= ~TS_BUSY;
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COM_UNLOCK();
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enable_intr();
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(*linesw[tp->t_line].l_start)(tp);
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}
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@ -1947,6 +1970,7 @@ comparam(tp, t)
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* to change all atomically.
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*/
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disable_intr();
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COM_LOCK();
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com->state &= ~CS_TTGO;
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if (!(tp->t_state & TS_TTSTOP))
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@ -2008,6 +2032,7 @@ comparam(tp, t)
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com->intr_enable &= ~CD1400_SRER_TXRDY);
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}
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COM_UNLOCK();
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enable_intr();
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splx(s);
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comstart(tp);
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@ -2037,6 +2062,7 @@ comstart(tp)
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#endif
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disable_intr();
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COM_LOCK();
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cd_outb(iobase, CD1400_CAR, com->cy_align, unit & CD1400_CAR_CHAN);
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if (tp->t_state & TS_TTSTOP) {
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com->state &= ~CS_TTGO;
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@ -2068,6 +2094,7 @@ comstart(tp)
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com->mcr_image |= MCR_RTS);
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#endif
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}
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COM_UNLOCK();
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enable_intr();
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if (tp->t_state & (TS_TIMEOUT | TS_TTSTOP)) {
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splx(s);
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@ -2087,6 +2114,7 @@ comstart(tp)
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com->obufs[0].l_next = NULL;
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com->obufs[0].l_queued = TRUE;
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disable_intr();
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COM_LOCK();
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if (com->state & CS_BUSY) {
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qp = com->obufq.l_next;
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while ((next = qp->l_next) != NULL)
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@ -2103,6 +2131,7 @@ comstart(tp)
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com->intr_enable
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|= CD1400_SRER_TXRDY);
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}
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COM_UNLOCK();
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enable_intr();
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}
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if (tp->t_outq.c_cc != 0 && !com->obufs[1].l_queued) {
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@ -2115,6 +2144,7 @@ comstart(tp)
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com->obufs[1].l_next = NULL;
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com->obufs[1].l_queued = TRUE;
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disable_intr();
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COM_LOCK();
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if (com->state & CS_BUSY) {
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qp = com->obufq.l_next;
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while ((next = qp->l_next) != NULL)
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@ -2131,6 +2161,7 @@ comstart(tp)
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com->intr_enable
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|= CD1400_SRER_TXRDY);
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}
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COM_UNLOCK();
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enable_intr();
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}
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tp->t_state |= TS_BUSY;
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@ -2141,8 +2172,10 @@ comstart(tp)
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#endif
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#if 0
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disable_intr();
|
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COM_LOCK();
|
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if (com->state >= (CS_BUSY | CS_TTGO))
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siointr1(com); /* fake interrupt to start output */
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COM_UNLOCK();
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enable_intr();
|
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#endif
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ttwwakeup(tp);
|
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@ -2158,6 +2191,7 @@ siostop(tp, rw)
|
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com = com_addr(DEV_TO_UNIT(tp->t_dev));
|
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disable_intr();
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COM_LOCK();
|
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if (rw & FWRITE) {
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com->obufs[0].l_queued = FALSE;
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||||
com->obufs[1].l_queued = FALSE;
|
||||
@ -2170,6 +2204,7 @@ siostop(tp, rw)
|
||||
com_events -= (com->iptr - com->ibuf);
|
||||
com->iptr = com->ibuf;
|
||||
}
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
comstart(tp);
|
||||
|
||||
@ -2240,6 +2275,7 @@ commctl(com, bits, how)
|
||||
if (bits & TIOCM_RTS)
|
||||
mcr |= MCR_RTS;
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
switch (how) {
|
||||
case DMSET:
|
||||
com->mcr_image = mcr;
|
||||
@ -2257,6 +2293,7 @@ commctl(com, bits, how)
|
||||
cd_outb(iobase, CD1400_MSVR2, com->cy_align, mcr);
|
||||
break;
|
||||
}
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
return (0);
|
||||
}
|
||||
@ -2319,7 +2356,9 @@ comwakeup(chan)
|
||||
if (com != NULL
|
||||
&& (com->state >= (CS_BUSY | CS_TTGO) || com->poll)) {
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
siointr1(com);
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
}
|
||||
}
|
||||
@ -2342,8 +2381,10 @@ comwakeup(chan)
|
||||
u_long total;
|
||||
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
delta = com->delta_error_counts[errnum];
|
||||
com->delta_error_counts[errnum] = 0;
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
if (delta == 0)
|
||||
continue;
|
||||
|
||||
@ -27,7 +27,7 @@
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* $Id: cy.c,v 1.47 1997/03/24 11:23:42 bde Exp $
|
||||
* $Id: cy.c,v 1.1 1997/08/20 05:59:24 smp Exp smp $
|
||||
*/
|
||||
|
||||
#include "cy.h"
|
||||
@ -84,6 +84,15 @@
|
||||
|
||||
#include <machine/clock.h>
|
||||
|
||||
#ifdef SMP
|
||||
#include <machine/smp.h>
|
||||
#define COM_LOCK() s_lock(&com_lock)
|
||||
#define COM_UNLOCK() s_unlock(&com_lock)
|
||||
#else
|
||||
#define COM_LOCK()
|
||||
#define COM_UNLOCK()
|
||||
#endif /* SMP */
|
||||
|
||||
#include <i386/isa/isa_device.h>
|
||||
#include <i386/isa/cyreg.h>
|
||||
#include <i386/isa/ic/cd1400.h>
|
||||
@ -756,22 +765,26 @@ sioopen(dev, flag, mode, p)
|
||||
}
|
||||
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
(void) inb(com->line_status_port);
|
||||
(void) inb(com->data_port);
|
||||
com->prev_modem_status = com->last_modem_status
|
||||
= inb(com->modem_status_port);
|
||||
outb(iobase + com_ier, IER_ERXRDY | IER_ETXRDY | IER_ERLS
|
||||
| IER_EMSC);
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
#else /* !0 */
|
||||
/* XXX raise RTS too */
|
||||
(void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
com->prev_modem_status = com->last_modem_status
|
||||
= cd_inb(iobase, CD1400_MSVR2, com->cy_align);
|
||||
cd_outb(iobase, CD1400_SRER, com->cy_align,
|
||||
com->intr_enable
|
||||
= CD1400_SRER_MDMCH | CD1400_SRER_RXDATA);
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
#endif /* 0 */
|
||||
/*
|
||||
@ -873,7 +886,9 @@ comhardclose(com)
|
||||
outb(iobase + com_ier, 0);
|
||||
#else
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
cd_outb(iobase, CD1400_SRER, com->cy_align, com->intr_enable = 0);
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
#endif
|
||||
tp = com->tp;
|
||||
@ -1531,6 +1546,7 @@ siopoll()
|
||||
* loop.
|
||||
*/
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
incc = com->iptr - com->ibuf;
|
||||
com->iptr = com->ibuf;
|
||||
if (com->state & CS_CHECKMSR) {
|
||||
@ -1538,6 +1554,7 @@ siopoll()
|
||||
com->state &= ~CS_CHECKMSR;
|
||||
}
|
||||
com_events -= incc;
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
if (incc != 0)
|
||||
log(LOG_DEBUG,
|
||||
@ -1553,6 +1570,7 @@ siopoll()
|
||||
} else {
|
||||
buf = ibuf;
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
incc = com->iptr - buf;
|
||||
com_events -= incc;
|
||||
if (ibuf == com->ibuf1)
|
||||
@ -1581,6 +1599,7 @@ siopoll()
|
||||
cd_outb(iobase, CD1400_MSVR1, com->cy_align,
|
||||
com->mcr_image |= MCR_RTS);
|
||||
#endif
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
com->ibuf = ibuf;
|
||||
}
|
||||
@ -1589,11 +1608,13 @@ siopoll()
|
||||
u_char delta_modem_status;
|
||||
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
delta_modem_status = com->last_modem_status
|
||||
^ com->prev_modem_status;
|
||||
com->prev_modem_status = com->last_modem_status;
|
||||
com_events -= LOTS_OF_EVENTS;
|
||||
com->state &= ~CS_CHECKMSR;
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
if (delta_modem_status & MSR_DCD)
|
||||
(*linesw[tp->t_line].l_modem)
|
||||
@ -1601,10 +1622,12 @@ siopoll()
|
||||
}
|
||||
if (com->state & CS_ODONE) {
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
com_events -= LOTS_OF_EVENTS;
|
||||
com->state &= ~CS_ODONE;
|
||||
if (!(com->state & CS_BUSY))
|
||||
com->tp->t_state &= ~TS_BUSY;
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
(*linesw[tp->t_line].l_start)(tp);
|
||||
}
|
||||
@ -1947,6 +1970,7 @@ comparam(tp, t)
|
||||
* to change all atomically.
|
||||
*/
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
|
||||
com->state &= ~CS_TTGO;
|
||||
if (!(tp->t_state & TS_TTSTOP))
|
||||
@ -2008,6 +2032,7 @@ comparam(tp, t)
|
||||
com->intr_enable &= ~CD1400_SRER_TXRDY);
|
||||
}
|
||||
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
splx(s);
|
||||
comstart(tp);
|
||||
@ -2037,6 +2062,7 @@ comstart(tp)
|
||||
#endif
|
||||
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
cd_outb(iobase, CD1400_CAR, com->cy_align, unit & CD1400_CAR_CHAN);
|
||||
if (tp->t_state & TS_TTSTOP) {
|
||||
com->state &= ~CS_TTGO;
|
||||
@ -2068,6 +2094,7 @@ comstart(tp)
|
||||
com->mcr_image |= MCR_RTS);
|
||||
#endif
|
||||
}
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
if (tp->t_state & (TS_TIMEOUT | TS_TTSTOP)) {
|
||||
splx(s);
|
||||
@ -2087,6 +2114,7 @@ comstart(tp)
|
||||
com->obufs[0].l_next = NULL;
|
||||
com->obufs[0].l_queued = TRUE;
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
if (com->state & CS_BUSY) {
|
||||
qp = com->obufq.l_next;
|
||||
while ((next = qp->l_next) != NULL)
|
||||
@ -2103,6 +2131,7 @@ comstart(tp)
|
||||
com->intr_enable
|
||||
|= CD1400_SRER_TXRDY);
|
||||
}
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
}
|
||||
if (tp->t_outq.c_cc != 0 && !com->obufs[1].l_queued) {
|
||||
@ -2115,6 +2144,7 @@ comstart(tp)
|
||||
com->obufs[1].l_next = NULL;
|
||||
com->obufs[1].l_queued = TRUE;
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
if (com->state & CS_BUSY) {
|
||||
qp = com->obufq.l_next;
|
||||
while ((next = qp->l_next) != NULL)
|
||||
@ -2131,6 +2161,7 @@ comstart(tp)
|
||||
com->intr_enable
|
||||
|= CD1400_SRER_TXRDY);
|
||||
}
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
}
|
||||
tp->t_state |= TS_BUSY;
|
||||
@ -2141,8 +2172,10 @@ comstart(tp)
|
||||
#endif
|
||||
#if 0
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
if (com->state >= (CS_BUSY | CS_TTGO))
|
||||
siointr1(com); /* fake interrupt to start output */
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
#endif
|
||||
ttwwakeup(tp);
|
||||
@ -2158,6 +2191,7 @@ siostop(tp, rw)
|
||||
|
||||
com = com_addr(DEV_TO_UNIT(tp->t_dev));
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
if (rw & FWRITE) {
|
||||
com->obufs[0].l_queued = FALSE;
|
||||
com->obufs[1].l_queued = FALSE;
|
||||
@ -2170,6 +2204,7 @@ siostop(tp, rw)
|
||||
com_events -= (com->iptr - com->ibuf);
|
||||
com->iptr = com->ibuf;
|
||||
}
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
comstart(tp);
|
||||
|
||||
@ -2240,6 +2275,7 @@ commctl(com, bits, how)
|
||||
if (bits & TIOCM_RTS)
|
||||
mcr |= MCR_RTS;
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
switch (how) {
|
||||
case DMSET:
|
||||
com->mcr_image = mcr;
|
||||
@ -2257,6 +2293,7 @@ commctl(com, bits, how)
|
||||
cd_outb(iobase, CD1400_MSVR2, com->cy_align, mcr);
|
||||
break;
|
||||
}
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
return (0);
|
||||
}
|
||||
@ -2319,7 +2356,9 @@ comwakeup(chan)
|
||||
if (com != NULL
|
||||
&& (com->state >= (CS_BUSY | CS_TTGO) || com->poll)) {
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
siointr1(com);
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
}
|
||||
}
|
||||
@ -2342,8 +2381,10 @@ comwakeup(chan)
|
||||
u_long total;
|
||||
|
||||
disable_intr();
|
||||
COM_LOCK();
|
||||
delta = com->delta_error_counts[errnum];
|
||||
com->delta_error_counts[errnum] = 0;
|
||||
COM_UNLOCK();
|
||||
enable_intr();
|
||||
if (delta == 0)
|
||||
continue;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user