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Code Issues Releases Activity

Reset the PSM aux device twice to help pierce through some KVM's to

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get the correct data from the attached mouse. Multiple resets should
be harmless, but just in case, the second one is non-fatal and is just
ignored.
This commit is contained in:
Mike Heffner 2003-07-07 05:40:13 +00:00
parent ace6720e77
commit b1181a94a3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=117302
2 changed files with 18 additions and 0 deletions
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9
sys/dev/atkbdc/psm.c
View File

@ -1040,6 +1040,10 @@ psmprobe(device_t dev)
/*
* NOTE: some controllers appears to hang the `keyboard' when the aux
* port doesn't exist and `PSMC_RESET_DEV' is issued.
*
* Attempt to reset the controller twice -- this helps
* pierce through some KVM switches. The second reset
* is non-fatal.
*/
if (!reset_aux_dev(sc->kbdc)) {
recover_from_error(sc->kbdc);
@ -1047,6 +1051,11 @@ psmprobe(device_t dev)
if (verbose)
printf("psm%d: failed to reset the aux device.\n", unit);
endprobe(ENXIO);
} else if (!reset_aux_dev(sc->kbdc)) {
recover_from_error(sc->kbdc);
if (verbose >= 2)
printf("psm%d: failed to reset the aux device (2).\n",
unit);
}
}

9
sys/isa/psm.c
View File

@ -1040,6 +1040,10 @@ psmprobe(device_t dev)
/*
* NOTE: some controllers appears to hang the `keyboard' when the aux
* port doesn't exist and `PSMC_RESET_DEV' is issued.
*
* Attempt to reset the controller twice -- this helps
* pierce through some KVM switches. The second reset
* is non-fatal.
*/
if (!reset_aux_dev(sc->kbdc)) {
recover_from_error(sc->kbdc);
@ -1047,6 +1051,11 @@ psmprobe(device_t dev)
if (verbose)
printf("psm%d: failed to reset the aux device.\n", unit);
endprobe(ENXIO);
} else if (!reset_aux_dev(sc->kbdc)) {
recover_from_error(sc->kbdc);
if (verbose >= 2)
printf("psm%d: failed to reset the aux device (2).\n",
unit);
}
}