[commit] r3533 - cpu/arm/olpc dev dev/usb2/device/keyboard

[repository service]

Author: quozl
Date: Mon Feb  4 08:50:34 2013
New Revision: 3533
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3533

Log:
OLPC - allocate any heap during driver open rather than during an alarm handler, for the /ap-sp, /keyboard, and /usb/keyboard drivers, fixes #12466, tested with 128,000 boot cycles across four units.

Modified:
   cpu/arm/olpc/spcmd.fth
   dev/pckbd.fth
   dev/usb2/device/keyboard/kbd.fth

Modified: cpu/arm/olpc/spcmd.fth
==============================================================================
--- cpu/arm/olpc/spcmd.fth	Mon Feb  4 08:47:38 2013	(r3532)
+++ cpu/arm/olpc/spcmd.fth	Mon Feb  4 08:50:34 2013	(r3533)
@@ -49,21 +49,21 @@
 #queues /n* buffer: heads  : head  ( -- adr )  heads queue# na+  ;
 #queues /n* buffer: tails  : tail  ( -- adr )  tails queue# na+  ;

-#queues /q * buffer: qs    : q  ( adr -- )  qs queue# /q * +  ;
+#queues /q * buffer: qs    : q  ( -- adr )  qs queue# /q * +  ;

/q 1- value   q-end

: init-queues  ( -- )
    #queues  0  do
       i to queue#
-      0 head !  0 tail !   /q 1- to q-end
+      0 head !  0 tail !   q drop  /q 1- to q-end
    loop
 ;
 : inc-q-ptr  ( pointer-addr -- )
    dup @ q-end >=  if  0 swap !  else  /c swap +!  then
 ;

-false value locked?		  \ Interrupt lockout for get-scan
+false value locked?		  \ Interrupt lockout for get-data?

: lock    ( -- )  true  to locked?  ;
 : unlock  ( -- )  false to locked?  ;
@@ -125,6 +125,7 @@
 0 value open-count
 : open  ( -- flag )
    open-count  0=  if
+      init-queues
       my-address my-space  h# 1000  " map-in" $call-parent  is reg-base
       data? 0=  if  send-rdy  then
    then

Modified: dev/pckbd.fth
==============================================================================
--- dev/pckbd.fth	Mon Feb  4 08:47:38 2013	(r3532)
+++ dev/pckbd.fth	Mon Feb  4 08:50:34 2013	(r3533)
@@ -55,7 +55,7 @@
 /q dup buffer: q
 1-     value   q-end

-: init-q  ( -- )  0 head !  0 tail !   /q 1- to q-end  ;
+: init-q  ( -- )  0 head !  0 tail !  q drop  /q 1- to q-end  ;
 : inc-q-ptr  ( pointer-addr -- )
    dup @ q-end >=  if  0 swap !  else  /c swap +!  then
 ;

Modified: dev/usb2/device/keyboard/kbd.fth
==============================================================================
--- dev/usb2/device/keyboard/kbd.fth	Mon Feb  4 08:47:38 2013	(r3532)
+++ dev/usb2/device/keyboard/kbd.fth	Mon Feb  4 08:50:34 2013	(r3533)
@@ -67,7 +67,10 @@
    				\ examined by getkey (to application)
 /qe         buffer:  null-entry		\ Buffer to hold a null entry

-: init-q  ( -- )  0 head !  0 tail !   #qe 1- to q-end  ;
+: init-q  ( -- )
+   0 head !  0 tail !   q drop  #qe 1- to q-end
+   last-entry drop  new-entry drop  cur-entry drop  null-entry drop
+;
 : inc-q-ptr  ( pointer-addr -- )
    dup @ q-end >=  if  0 swap !  else  1 swap +!  then
 ;
@@ -370,6 +373,7 @@

: open  ( -- flag )
    kbd-refcount @  if  1 +refcnt true exit  then
+   init-q
    init-kbd-buf
    setup-hardware?  if
       free-kbd-buf