[commit] r2088 - cpu/arm/mmp2

[repository service]

Author: wmb
Date: Mon Dec 20 21:55:23 2010
New Revision: 2088
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2088

Log:
OLPC 1.75 - Implemented a simple driver for the MMP2 keypad controller.

Added:
   cpu/arm/mmp2/keypad.fth

Added: cpu/arm/mmp2/keypad.fth
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ cpu/arm/mmp2/keypad.fth	Mon Dec 20 21:55:23 2010	(r2088)
@@ -0,0 +1,41 @@
+\ See license at end of file
+purpose: Driver for Armada 610/MMP2 keypad controller
+
+: keypad-on  ( -- )
+   5 h# d4015018 l!  \ Clock on with reset asserted
+   1 h# d4015018 l!  \ Clock on, release reset
+;
+: kp!  ( n offset -- )  h# d4012000 + l!  ;
+: kp@  ( offset -- n )  h# d4012000 + l@  ;
+: keypad-direct-mode  ( #keys -- )
+   1+ 6 lshift  h# 202 or  0 kp!
+;
+: scan-keypad  ( -- n )
+   0 kp@  h# 4000.0000 or  0 kp!
+   1 ms
+   8 kp@
+;
+
+\ LICENSE_BEGIN
+\ Copyright (c) 2010 FirmWorks
+\ 
+\ Permission is hereby granted, free of charge, to any person obtaining
+\ a copy of this software and associated documentation files (the
+\ "Software"), to deal in the Software without restriction, including
+\ without limitation the rights to use, copy, modify, merge, publish,
+\ distribute, sublicense, and/or sell copies of the Software, and to
+\ permit persons to whom the Software is furnished to do so, subject to
+\ the following conditions:
+\ 
+\ The above copyright notice and this permission notice shall be
+\ included in all copies or substantial portions of the Software.
+\ 
+\ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+\ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+\ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+\ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+\ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+\ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+\ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+\
+\ LICENSE_END