[openfirmware] [commit] r3400 - dev/olpc/kb3700

[repository service]

Author: rsmith
Date: Wed Oct 31 00:26:46 2012
New Revision: 3400
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3400

Log:
OLPC: Add tenths digit to battery temperature display

Modified:
   dev/olpc/kb3700/batstat.fth

Modified: dev/olpc/kb3700/batstat.fth
==============================================================================
--- dev/olpc/kb3700/batstat.fth	Tue Oct 30 11:37:09 2012	(r3399)
+++ dev/olpc/kb3700/batstat.fth	Wed Oct 31 00:26:46 2012	(r3400)
@@ -1,10 +1,10 @@
 : wextend  ( w -- n )  dup h# 8000 and  if  h# ffff.0000 or  then  ;
-\ Base unit for temperature is 1/256 degrees C
-: >degrees-c 7 rshift 1+ 2/  ;  \ Round to nearest degree 
+\ Base unit for temperature is .125 degrees C
+: >milli-degrees-c 125 * 5 rshift ;
 : uvolt@ bat-voltage@ d# 9760 d# 32 */ ;
 : cur@ bat-current@ wextend  d# 15625 d# 120 */ ;
-: pcb-temp ambient-temp@ >degrees-c  ;
-: bat-temp bat-temp@ >degrees-c  ;
+\ : pcb-temp ambient-temp@ >milli-degrees-c  ;
+: bat-temp bat-temp@ >milli-degrees-c  ;
 : soc     bat-soc@  ;
 
 string-array bat-causes
@@ -79,6 +79,13 @@
    if ." MPPT" then
 ;
 
+: .bat-temp
+   push-decimal
+   bat-temp
+   dup abs d# 50 + d# 100 /  <# u# [char] . hold u#s swap sign u#> type
+   pop-base
+;
+
 : .%  ( n -- )  push-decimal  <# [char] % hold u# u#s u#>  type  pop-base  ;
 : .bat  ( -- )
    bat-status@  ( stat )
@@ -93,7 +100,7 @@
       soc .%   ."  "
       uvolt@  .milli  ." V "
       cur@  .milli  ." A "
-      bat-temp 2.d ." C "
+      .bat-temp ." C "
       dup 2 and  if  ." full "  then
       dup 4 and  if  ." low "  then
       dup 8 and  if  ." error "  then