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Add another kludge to the card identification probe. It appears that

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some aha 1542B cards will return 0x7f for the unimplemented GEOMETRY
register.

This is a good 3.2 candidate.

PR: 11469
Submitted by: Thomas David Rivers
This commit is contained in:
Warner Losh 1999-05-11 08:12:11 +00:00
parent 583393551b
commit ca0cc0c9be
1 changed files with 7 additions and 4 deletions
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11
sys/dev/aha/aha.c
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@ -55,7 +55,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: aha.c,v 1.22 1999/05/06 20:16:14 ken Exp $
* $Id: aha.c,v 1.23 1999/05/06 22:18:21 peter Exp $
*/
#include "pnp.h"
@ -367,18 +367,21 @@ aha_probe(struct aha_softc* aha)
* errs on the side of conservatism. Besides, no one will
* notice a 10mS delay here, even the 1542B card users :-)
*
* Some compatible cards return 0 here.
* Some compatible cards return 0 here. Some cards also
* seem to return 0x7f.
*
* XXX I'm not sure how this will impact other cloned cards
*
* This really should be replaced with the esetup command, since
* that appears to be more reliable.
* that appears to be more reliable. This becomes more and more
* true over time as we discover more cards that don't read the
* geometry register consistantly.
*/
if (aha->boardid <= 0x42) {
/* Wait 10ms before reading */
DELAY(10000);
status = aha_inb(aha, GEOMETRY_REG);
if (status != 0xff && status != 0x00) {
if (status != 0xff && status != 0x00 && status != 0x7f) {
PRVERB(("%s: Geometry Register test failed 0x%x\n",
aha_name(aha), status));
return (ENXIO);