chromeec/acpi: add Tablet event and EC ACPI MEM
authorjiazi Yang <Tomato_Yang@asus.com>
Thu, 28 Jul 2016 09:15:01 +0000 (05:15 -0400)
committerMartin Roth <martinroth@google.com>
Fri, 12 Aug 2016 16:06:53 +0000 (18:06 +0200)
Switch DPTF table when TABLET/NOTEBOOK mode changes
1. EC send EC_HOST_EVENT_MODE_CHANGE(29/0x1D) when mode changes
2. Host read current "physical mode" from EC ERAM

BUG=chrome-os-partner:53526
BRANCH=master
TEST=build glados

Change-Id: I836d2b9d1a24c455c4b8d4b85f7edc19259d2f71
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 9506c4c07e0f713c9a22a0231bc4255f6876783f
Original-Change-Id: I5a3363ff9c958decb5aed1c85fc2a1ef6670931d
Original-Signed-off-by: jiazi Yang <Tomato_Yang@asus.com>
Original-Signed-off-by: Shasha Zhao <Sarah_Zhao@asus.com>
Original-Signed-off-by: jiazi Yang <Tomato_Yang@asus.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/365991
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16151
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
src/ec/google/chromeec/acpi/ec.asl
src/ec/google/chromeec/ec_commands.h

index 13317f6..84d5e32 100644 (file)
@@ -25,6 +25,7 @@ External (\_SB.DPTF.TEVT, MethodObj)
 #ifdef DPTF_ENABLE_CHARGER
 External (\_SB.DPTF.TCHG, DeviceObj)
 #endif
+External (\_SB.DPTF.TPET, MethodObj)
 
 Device (EC0)
 {
@@ -52,6 +53,7 @@ Device (EC0)
                PATT, 8,        // Programmable Auxiliary Trip Threshold
                PATC, 8,        // Programmable Auxiliary Trip Commit
                CHGL, 8,        // Charger Current Limit
+               TBMD, 1,        // Tablet mode
        }
 
 #if CONFIG_EC_GOOGLE_CHROMEEC_ACPI_MEMMAP
@@ -296,6 +298,15 @@ Device (EC0)
                Notify (CREC, 0x80)
        }
 
+       // TABLET mode switch Event
+       Method (_Q1D, 0, NotSerialized)
+       {
+               Store ("EC: TABLET mode switch Event", Debug)
+               If (CondRefOf (\_SB.DPTF.TPET)) {
+                       \_SB.DPTF.TPET()
+               }
+       }
+
        /*
         * Dynamic Platform Thermal Framework support
         */
@@ -422,6 +433,12 @@ Device (EC0)
                Store (0xFF, ^CHGL)
        }
 
+       /* Read current Tablet mode */
+       Method (RCTM, 0, NotSerialized)
+       {
+               Return (^TBMD)
+       }
+
        #include "ac.asl"
        #include "battery.asl"
        #include "cros_ec.asl"
index 2e2a695..4a551c2 100644 (file)
 #define EC_ACPI_MEM_CHARGING_LIMIT_STEP_MA   64
 /* Value to disable DPTF battery charging limit */
 #define EC_ACPI_MEM_CHARGING_LIMIT_DISABLED  0xff
+/*
+ * Report device orientation
+ * bit 0 device is tablet mode
+ */
+#define EC_ACPI_MEM_DEVICE_ORIENTATION       0x09
+#define EC_ACPI_MEM_DEVICE_TABLET_MODE       0x01
 
 /*
  * ACPI addresses 0x20 - 0xff map to EC_MEMMAP offset 0x00 - 0xdf.  This data
@@ -465,6 +471,9 @@ enum host_event_code {
        /* Emulate MKBP event */
        EC_HOST_EVENT_MKBP = 27,
 
+       /* TABLET/LAPTOP mode event*/
+       EC_HOST_EVENT_MODE_CHANGE = 29,
+
        /*
         * The high bit of the event mask is not used as a host event code.  If
         * it reads back as set, then the entire event mask should be