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chromeec: Add ACPI device for PD MCU and handle related EC host event 

Add ACPI device for PD MCU, if present. Call Notify routine when the
corresponding EC host event is received.

BUG=chrome-os-partner:31361
TEST=Manual on Samus. Enable EC_ENABLE_PD_MCU_DEVICE, unmask PD MCU host
event, and verify ACPI Notify routine is called when host event is sent
from EC.
BRANCH=None.

Original-Change-Id: I6db61031e434d7ecb211802a4caeaba051e22a28
Original-Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/214809
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-by: Alec Berg <alecaberg@chromium.org>
(cherry picked from commit 226b349e40ed8eacce20d0a8063877382f707c69)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: Iecff6c06f1b37651ff61e36d6085d397d66f861c
Reviewed-on: http://review.coreboot.org/8968
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This commit is contained in:
Shawn Nematbakhsh 2014-08-28 11:33:41 -07:00 committed by Marc Jones
parent 4fef5a294b
commit 98cc94c974
3 changed files with 39 additions and 0 deletions
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13
src/ec/google/chromeec/acpi/ec.asl
View File

@ -303,6 +303,15 @@ Device (EC0)
}
}
#ifdef EC_ENABLE_PD_MCU_DEVICE
// PD event
Method (_Q16, 0, NotSerialized)
{
Store ("EC: GOT PD EVENT", Debug)
Notify (ECPD, 0x80)
}
#endif
/*
* Dynamic Platform Thermal Framework support
*/
@ -435,4 +444,8 @@ Device (EC0)
#ifdef EC_ENABLE_ALS_DEVICE
#include "als.asl"
#endif
#ifdef EC_ENABLE_PD_MCU_DEVICE
#include "pd.asl"
#endif
}

25
src/ec/google/chromeec/acpi/pd.asl Normal file
View File

@ -0,0 +1,25 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
Device (ECPD)
{
Name (_HID, "GOOG0003")
Name (_UID, 1)
Name (_DDN, "EC PD Device")
}

1
src/ec/google/chromeec/ec_commands.h
View File

@ -253,6 +253,7 @@ enum host_event_code {
EC_HOST_EVENT_HANG_DETECT = 20,
/* Hang detect logic detected a hang and warm rebooted the AP */
EC_HOST_EVENT_HANG_REBOOT = 21,
EC_HOST_EVENT_PD_MCU = 22,
/*
* The high bit of the event mask is not used as a host event code. If