diff options
| -rw-r--r-- | sys/dev/dcons/dcons_os.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/sys/dev/dcons/dcons_os.c b/sys/dev/dcons/dcons_os.c index a37d64c..bf0be0b 100644 --- a/sys/dev/dcons/dcons_os.c +++ b/sys/dev/dcons/dcons_os.c @@ -74,6 +74,10 @@ #define DCONS_POLL_HZ 25 #endif +#ifndef DCONS_POLL_IDLE +#define DCONS_POLL_IDLE 256 +#endif + #ifndef DCONS_BUF_SIZE #define DCONS_BUF_SIZE (16*1024) #endif @@ -90,6 +94,7 @@ static char bssbuf[DCONS_BUF_SIZE]; /* buf in bss */ static struct dcons_global dg; struct dcons_global *dcons_conf; static int poll_hz = DCONS_POLL_HZ; +static u_int poll_idle = DCONS_POLL_HZ * DCONS_POLL_IDLE; static struct dcons_softc sc[DCONS_NPORT]; @@ -214,14 +219,17 @@ dcons_timeout(void *v) tp = dc->tty; tty_lock(tp); - while ((c = dcons_os_checkc_nopoll(dc)) != -1) + while ((c = dcons_os_checkc_nopoll(dc)) != -1) { ttydisc_rint(tp, c, 0); + poll_idle = 0; + } ttydisc_rint_done(tp); tty_unlock(tp); } - polltime = hz / poll_hz; - if (polltime < 1) - polltime = 1; + poll_idle++; + polltime = hz; + if (poll_idle <= (poll_hz * DCONS_POLL_IDLE)) + polltime /= poll_hz; callout_reset(&dcons_callout, polltime, dcons_timeout, tp); } @@ -368,8 +376,6 @@ dcons_attach(void) dcons_attach_port(DCONS_GDB, "dgdb", DC_GDB); callout_init(&dcons_callout, CALLOUT_MPSAFE); polltime = hz / poll_hz; - if (polltime < 1) - polltime = 1; callout_reset(&dcons_callout, polltime, dcons_timeout, NULL); return(0); } |
