Author: wmb Date: Sat Aug 13 02:51:41 2011 New Revision: 2460 URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2460
Log: Alex - Added interface to the EC and its internal access to battery, AC, CPU temperature, and fan.
Added: cpu/x86/pc/alex/ec.fth dev/acpiec.fth Modified: cpu/x86/pc/alex/devices.fth
Modified: cpu/x86/pc/alex/devices.fth ============================================================================== --- cpu/x86/pc/alex/devices.fth Thu Aug 11 03:35:51 2011 (r2459) +++ cpu/x86/pc/alex/devices.fth Sat Aug 13 02:51:41 2011 (r2460) @@ -192,6 +192,9 @@
fload ${BP}/cpu/x86/pc/reset.fth \ reset-all
+fload ${BP}/dev/acpiec.fth \ Access to ACPI EC internal variables +fload ${BP}/cpu/x86/pc/alex/ec.fth \ Battery, AC, CPU temperature, Fan controls + : ?enough-power ; \ Implement based on AC presence and battery status
fload ${BP}/cpu/x86/pc/alex/spiui.fth \ User interface for SPI FLASH programming
Added: cpu/x86/pc/alex/ec.fth ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ cpu/x86/pc/alex/ec.fth Sat Aug 13 02:51:41 2011 (r2460) @@ -0,0 +1,68 @@ +\ See license at end of file +purpose: Access to platform functions controlled by the Embedded Controller + +[ifdef] notdef +\ The following is an alternative interface to EC internals. It seems to +\ accomplish the same thing as the standard port 66/62 ACPI interface. +: ec-i@ ( index -- b ) h# a00 pc! h# a01 pc@ ; +: ec-i! ( b index -- ) h# a00 pc! h# a01 pc! ; +: ec-rdy? ( -- flag ) h# 82 ec-i@ 0= ; +: wait-ec-rdy ( -- ) + h# 800 0 do ec-rdy? if unloop exit then d# 10 us loop + true abort" EC timeout" +; +: ec-cmd ( cmd -- ) wait-ec-rdy h# 82 ec-i! wait-ec-rdy ; +: ec-cmd-data ( data cmd -- ) wait-ec-rdy swap h# 84 ec-i! h# 82 ec-i! wait-ec-rdy ; + +: ec-b@ ( adr -- b ) h# 88 ec-cmd-data h# 84 ec-i@ ; +: ec-b! ( b adr -- ) h# 84 ec-i! h# 85 ec-i! h# 89 h# 82 ec-i! ; + +: ec-w@ ( adr -- b ) dup ec-b@ swap 1+ ec-b@ bwjoin ; +: ec-w! ( w adr -- b ) >r wbsplit r@ 1+ ec-b! r> ec-b! ; +[then] + +\ Alex has one fan, but it appears that the EC supports up to 5 fans. +\ Alex's fan goes on if you turn on either of EC fans 0,1, or 2 +: fan-on? ( -- flag ) h# ca ec-b@ 7 and 0<> ; +: fan-on ( -- ) h# 81 h# ca ec-b! ; +: fan-off ( -- ) h# 80 h# ca ec-b! ; + +: battery-remaining-capacity ( -- w ) h# a2 ec-w@ ; +: battery-present-rate ( -- w ) h# a4 ec-w@ ; +: battery-present-voltage ( -- w ) h# a6 ec-w@ ; + +: battery-design-capacity ( -- w ) h# b0 ec-w@ ; +: battery-last-charge ( -- w ) h# b2 ec-w@ ; +: battery-design-voltage ( -- w ) h# b4 ec-w@ ; +: battery-design-full ( -- w ) h# b6 ec-w@ ; + +: cpu-temperature ( -- degrees-c ) h# c0 ec-b@ ; + +: battery-state ( -- b ) h# 84 ec-b@ ; \ 0:discharging 1:charging 2:critical +: lid-open? ( -- flag ) h# 83 ec-b@ 1 and 0<> ; +: ac? ( -- flag ) h# 80 ec-b@ 4 and 0<> ; +: battery? ( -- flag ) h# 80 ec-b@ 1 and 0<> ; + +\ LICENSE_BEGIN +\ Copyright (c) 2011 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
Added: dev/acpiec.fth ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ dev/acpiec.fth Sat Aug 13 02:51:41 2011 (r2460) @@ -0,0 +1,48 @@ +\ See license at end of file +purpose: Interface to ACPI Embedded Controller internal variables + +: ec-obf? ( -- flag ) h# 66 pc@ 1 and 0<> ; +: ec-ibf? ( -- flag ) h# 66 pc@ 2 and 0<> ; +: wait-ibf0 + h# 800 0 do ec-ibf? 0= if unloop exit then d# 10 us loop + true abort" EC timeout" +; +: wait-obf ( -- ) + h# 800 0 do ec-obf? if unloop exit then d# 10 us loop + true abort" EC timeout" +; +: ec-cmd ( cmd -- ) wait-ibf0 h# 66 pc! ; +: ec-data! ( data -- ) wait-ibf0 h# 62 pc! ; +: ec-data@ ( data -- ) wait-obf h# 62 pc@ ; +: ec-cmd-data ( data cmd -- ) ec-cmd ec-data! ; +: ec-sci@ ( -- b ) h# 84 ec-cmd ec-data@ ; + +: ec-b@ ( adr -- b ) h# 80 ec-cmd-data ec-data@ ; +: ec-b! ( b adr -- ) h# 81 ec-cmd-data ec-data! ; + +: ec-w@ ( adr -- b ) dup ec-b@ swap 1+ ec-b@ bwjoin ; +: ec-w! ( b adr -- ) >r wbsplit r@ 1+ ec-b! r> ec-b! ; + +\ LICENSE_BEGIN +\ Copyright (c) 2011 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