diff options
| author | bde <bde@FreeBSD.org> | 1995-11-26 17:13:23 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 1995-11-26 17:13:23 +0000 |
| commit | 6416fe008a59fa4eed3abbb0b7abbefe85f5d204 (patch) | |
| tree | a5a7c5bda6bc6054f7eeffe3c795fd6c9a91b90a /sys/i386 | |
| parent | fb91b3e1a96f0045538b4067ea71b836f55c6b2c (diff) | |
| download | FreeBSD-src-6416fe008a59fa4eed3abbb0b7abbefe85f5d204.zip FreeBSD-src-6416fe008a59fa4eed3abbb0b7abbefe85f5d204.tar.gz | |
Fixed setting of speed B0 - don't output a bogus divisor of 0 and a
random prescaler, just hang up. This may fix hangup problems with
mgetty.
Diffstat (limited to 'sys/i386')
| -rw-r--r-- | sys/i386/isa/cy.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sys/i386/isa/cy.c b/sys/i386/isa/cy.c index 0b90ac0..ce0816c 100644 --- a/sys/i386/isa/cy.c +++ b/sys/i386/isa/cy.c @@ -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 1.17 1995/11/04 13:23:31 bde Exp $ + * $Id: cy.c,v 1.18 1995/11/04 17:07:14 bde Exp $ */ #include "cy.h" @@ -1675,10 +1675,14 @@ comparam(tp, t) else (void)commctl(com, TIOCM_DTR, DMBIS); - cd_outb(iobase, CD1400_RBPR, idivisor); - cd_outb(iobase, CD1400_RCOR, iprescaler); - cd_outb(iobase, CD1400_TBPR, odivisor); - cd_outb(iobase, CD1400_TCOR, oprescaler); + if (idivisor != 0) { + cd_outb(iobase, CD1400_RBPR, idivisor); + cd_outb(iobase, CD1400_RCOR, iprescaler); + } + if (odivisor != 0) { + cd_outb(iobase, CD1400_TBPR, odivisor); + cd_outb(iobase, CD1400_TCOR, oprescaler); + } /* * channel control |
