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CVS commit: src/sys/dev/ic
Module Name: src
Committed By: mycroft
Date: Sun Jul 4 08:09:03 UTC 2004
Modified Files:
src/sys/dev/ic: com.c
Log Message:
Incorporate 4 changes that have been suggested:
* At high speed, set the FIFO trigger to the maximum value to reduce interrupt
load. PR 15448.
* Handler the case of IIR=RXRDY and LSR=!LSR_RCV_MASK differently, to avoid a
hang with some chips. PR 21184, and possibly PR 10974 and PR 8248.
* Remove the extra wait at the end of com_common_putc(), after writing a
character out, so that we get another TXRDY interrupt. This prevents stalls
when normal output and kernel output are mixed. PR 4263.
* Do not "preload" the TX FIFO; wait for a TXRDY interrupt to come in after
enabling it.
To generate a diff of this commit:
cvs rdiff -r1.227 -r1.228 src/sys/dev/ic/com.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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