Author: wmb Date: Tue May 29 20:44:37 2012 New Revision: 2989 URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2989
Log: OLPC trac #11902 - ALPS touchpad driver - use mouse emulation mode on initial open so the menu works, switching to ALPS mode only during selftest.
Modified: dev/olpc/touchpad/touchpad.fth
Modified: dev/olpc/touchpad/touchpad.fth ============================================================================== --- dev/olpc/touchpad/touchpad.fth Fri May 25 03:24:28 2012 (r2988) +++ dev/olpc/touchpad/touchpad.fth Tue May 29 20:44:37 2012 (r2989) @@ -72,17 +72,21 @@ touchpad-id h# ffff and h# 0067 = ;
+variable mode \ 0 - unknown 1 - GS 2 - PT 3 - mouse + \ Ref: 5.2.10 (2-1) of Hybrid-GP2B-T-1.pdf -: advanced-mode ( -- ) stream-off stream-off stream-off stream-off ; \ 4 f5 commands +: advanced-mode ( -- ) stream-off stream-off stream-off stream-off 0 mode ! ; \ 4 f5 commands
\ Ref: 5.2.10 (2-2) of Hybrid-GP2B-T-1.pdf -: mouse-mode ( -- ) h# ff read2 drop drop ; \ Response is 0,aa +: mouse-mode ( -- ) \ Response is 0,aa + h# ff read2 drop drop + stream-mode 3 mode ! +;
\ Send the common "three f2 commands" prefix. "f2" is normally the \ "identify" command; the response (for a mouse-like device) is 0x00 : alps-prefix ( -- ) 3 0 do h# f2 read1 drop loop ;
-variable mode \ 0 - unknown 1 - GS 2 - PT 3 - mouse 0 instance value packet-type
\ Ref: 5.2.10 (3) of Hybrid-GP2B-T-1.pdf @@ -104,16 +108,16 @@ : start ( -- ) setup olpc-touchpad? if - 0 mode ! advanced-mode stream-on + advanced-mode stream-on else - stream-mode 3 mode ! + mouse-mode then ;
\ Substitute "start" for "stream-mode" in the driver's open \ method, so we can use advance-mode for the ALPS touchpad.
-patch start stream-mode open +patch mouse-mode stream-mode open
\ I have been unable to get this to work. The response is always @@ -543,6 +547,8 @@ if track then exit-test? until
+ mouse-mode \ Restore the standard mouse mode so the menu will work + close cursor-on page