[OpenBIOS] r347 - dev/olpc/kb3700

[svn at openbios.org]

Author: wmb
Date: 2007-05-03 10:25:39 +0200 (Thu, 03 May 2007)
New Revision: 347

Modified:
   dev/olpc/kb3700/ecio.fth
Log:
OLPC EC commands - Added a time delay to the polling loop for EC command
response data, so the system doesn't hang because the EC is being polled
too fast for it to make any progress.









Modified: dev/olpc/kb3700/ecio.fth
===================================================================
--- dev/olpc/kb3700/ecio.fth	2007-05-03 08:23:33 UTC (rev 346)
+++ dev/olpc/kb3700/ecio.fth	2007-05-03 08:25:39 UTC (rev 347)
@@ -42,8 +42,8 @@
 
 : ec-release  ( -- )  h# ff h# 6c pc!  ;
 : ec-cmd@  ( -- b )  h# 6c pc@  ;
-: ec-wait-wr  ( -- )  begin  ec-cmd@ 2 and 0=  key? abort" wait wr"  until  ;
-: ec-wait-rd  ( -- )  begin  ec-cmd@ 1 and  key? abort" wait rd"  until  ;
+: ec-wait-wr  ( -- )  begin  ec-cmd@ 2 and  while  key? abort" wait wr"  1 ms repeat  ;
+: ec-wait-rd  ( -- )  begin  ec-cmd@ 1 and  0=  while  key? abort" wait rd"  1 ms  repeat  ;
 : ec-cmd!  ( b -- )  ec-wait-wr  h# 6c pc!  ec-wait-wr  ;
 : ec-dat@  ( -- b )  ec-wait-rd  h# 68 pc@  ;
 : ec-dat!  ( b -- )  ec-wait-wr  h# 68 pc!  ;