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-rw-r--r--src/ec/purism/librem/Kconfig4
-rw-r--r--src/ec/purism/librem/acpi/ac.asl30
-rw-r--r--src/ec/purism/librem/acpi/battery.asl211
-rw-r--r--src/ec/purism/librem/acpi/ec.asl233
4 files changed, 478 insertions, 0 deletions
diff --git a/src/ec/purism/librem/Kconfig b/src/ec/purism/librem/Kconfig
new file mode 100644
index 0000000000..0ea38c6f0c
--- /dev/null
+++ b/src/ec/purism/librem/Kconfig
@@ -0,0 +1,4 @@
+config EC_PURISM_LIBREM
+ bool
+ help
+ Purism Librem EC
diff --git a/src/ec/purism/librem/acpi/ac.asl b/src/ec/purism/librem/acpi/ac.asl
new file mode 100644
index 0000000000..99d17ee104
--- /dev/null
+++ b/src/ec/purism/librem/acpi/ac.asl
@@ -0,0 +1,30 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 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.
+ */
+
+Device (AC)
+{
+ Name (_HID, "ACPI0003")
+ Name (_PCL, Package () { \_SB })
+
+ Method (_PSR)
+ {
+ Return (ACEX)
+ }
+
+ Method (_STA)
+ {
+ Return (0x0F)
+ }
+}
diff --git a/src/ec/purism/librem/acpi/battery.asl b/src/ec/purism/librem/acpi/battery.asl
new file mode 100644
index 0000000000..a090b7c2a8
--- /dev/null
+++ b/src/ec/purism/librem/acpi/battery.asl
@@ -0,0 +1,211 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 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.
+ */
+
+Device (BAT)
+{
+ Name (_HID, EisaId ("PNP0C0A"))
+ Name (_UID, 1)
+ Name (_PCL, Package () { \_SB })
+
+ Name (PBIF, Package () {
+ 0x00000001, /* 0x00: Power Unit: mAh */
+ 0xFFFFFFFF, /* 0x01: Design Capacity */
+ 0xFFFFFFFF, /* 0x02: Last Full Charge Capacity */
+ 0x00000001, /* 0x03: Battery Technology: Rechargeable */
+ 0xFFFFFFFF, /* 0x04: Design Voltage */
+ 0x00000003, /* 0x05: Design Capacity of Warning */
+ 0xFFFFFFFF, /* 0x06: Design Capacity of Low */
+ 0x00000001, /* 0x07: Capacity Granularity 1 */
+ 0x00000001, /* 0x08: Capacity Granularity 2 */
+ "S10", /* 0x09: Model Number */
+ "", /* 0x0a: Serial Number */
+ "LION", /* 0x0b: Battery Type */
+ "TPS" /* 0x0c: OEM Information */
+ })
+
+ Name (PBIX, Package () {
+ 0x00000000, // 0x00: Revision
+ 0x00000001, // 0x01: Power Unit: mAh
+ 0xFFFFFFFF, // 0x02: Design Capacity
+ 0xFFFFFFFF, // 0x03: Last Full Charge Capacity
+ 0x00000001, // 0x04: Battery Technology: Rechargeable
+ 0xFFFFFFFF, // 0x05: Design Voltage
+ 0x00000003, // 0x06: Design Capacity of Warning
+ 0xFFFFFFFF, // 0x07: Design Capacity of Low
+ 0x00000000, // 0x08: Cycle Count
+ 0x00018000, // 0x09: Measurement Accuracy (98.3%?)
+ 0x000001F4, // 0x0a: Max Sampling Time (500ms)
+ 0x0000000a, // 0x0b: Min Sampling Time (10ms)
+ 0xFFFFFFFF, // 0x0c: Max Averaging Interval
+ 0xFFFFFFFF, // 0x0d: Min Averaging Interval
+ 0x00000001, // 0x0e: Capacity Granularity 1
+ 0x00000001, // 0x0f: Capacity Granularity 2
+ "S10", // 0x10: Model Number
+ "", // 0x11: Serial Number
+ "LION", // 0x12: Battery Type
+ "TPS" // 0x13: OEM Information
+ })
+
+ Name (PBST, Package () {
+ 0x00000000, /* 0x00: Battery State */
+ 0xFFFFFFFF, /* 0x01: Battery Present Rate */
+ 0xFFFFFFFF, /* 0x02: Battery Remaining Capacity */
+ 0xFFFFFFFF, /* 0x03: Battery Present Voltage */
+ })
+ Name (BSTP, Zero)
+
+ /* Battery Capacity warning at 15% */
+ Name (DWRN, 15)
+
+ /* Battery Capacity low at 10% */
+ Name (DLOW, 10)
+
+ /* Workaround for full battery status, enabled by default */
+ Name (BFWK, One)
+
+ /* Method to enable full battery workaround */
+ Method (BFWE)
+ {
+ Store (One, BFWK)
+ }
+
+ /* Method to disable full battery workaround */
+ Method (BFWD)
+ {
+ Store (Zero, BFWK)
+ }
+
+ Method (_STA, 0, Serialized)
+ {
+ If (BTEX) {
+ Return (0x1F)
+ } Else {
+ Return (0x0F)
+ }
+ }
+
+ Method (_BIF, 0, Serialized)
+ {
+ /* Last Full Charge Capacity */
+ Store (BTDF, Index (PBIF, 2))
+
+ /* Design Voltage */
+ Store (BTDV, Index (PBIF, 4))
+
+ /* Design Capacity */
+ Store (BTDA, Local0)
+ Store (Local0, Index (PBIF, 1))
+
+ /* Design Capacity of Warning */
+ Divide (Multiply (Local0, DWRN), 100, , Local2)
+ Store (Local2, Index (PBIF, 5))
+
+ /* Design Capacity of Low */
+ Divide (Multiply (Local0, DLOW), 100, , Local2)
+ Store (Local2, Index (PBIF, 6))
+
+ Return (PBIF)
+ }
+
+ Method (_BIX, 0, Serialized)
+ {
+ /* Last Full Charge Capacity */
+ Store (BTDF, Index (PBIX, 3))
+
+ /* Design Voltage */
+ Store (BTDV, Index (PBIX, 5))
+
+ /* Design Capacity */
+ Store (BTDA, Local0)
+ Store (Local0, Index (PBIX, 2))
+
+ /* Design Capacity of Warning */
+ Divide (Multiply (Local0, DWRN), 100, , Local2)
+ Store (Local2, Index (PBIX, 6))
+
+ /* Design Capacity of Low */
+ Divide (Multiply (Local0, DLOW), 100, , Local2)
+ Store (Local2, Index (PBIX, 7))
+
+ Return (PBIX)
+ }
+
+ Method (_BST, 0, Serialized)
+ {
+ /*
+ * 0: BATTERY STATE
+ *
+ * bit 0 = discharging
+ * bit 1 = charging
+ * bit 2 = critical level
+ */
+
+ /* Check if AC is present */
+ If (ACEX) {
+ /* Read battery status from EC */
+ Store (BSTS, Local0)
+ } Else {
+ /* Always discharging when on battery power */
+ Store (0x01, Local0)
+ }
+
+ /* Check for critical battery level */
+ If (BFCR) {
+ Or (Local0, 0x04, Local0)
+ }
+ Store (Local0, Index (PBST, 0))
+
+ /* Notify if battery state has changed since last time */
+ If (LNotEqual (Local0, BSTP)) {
+ Store (Local0, BSTP)
+ Notify (BAT, 0x80)
+ }
+
+ /*
+ * 1: BATTERY PRESENT RATE
+ */
+ Store (BTPR, Local1)
+ If (And (Local1, 0x8000)) {
+ And (Not (Local1), 0x7FFF, Local0)
+ Increment (Local0)
+ } Else {
+ And (Local1, 0x7FFF, Local0)
+ }
+
+ /*
+ * 2: BATTERY REMAINING CAPACITY
+ */
+ Store (BTRA, Local0)
+ If (LAnd (BFWK, LAnd (ACEX, LNot (BSTS)))) {
+ Store (BTDF, Local1)
+
+ /* See if within ~6% of full */
+ ShiftRight (Local1, 4, Local2)
+ If (LAnd (LGreater (Local0, Subtract (Local1, Local2)),
+ LLess (Local0, Add (Local1, Local2))))
+ {
+ Store (Local1, Local0)
+ }
+ }
+ Store (Local0, Index (PBST, 2))
+
+ /*
+ * 3: BATTERY PRESENT VOLTAGE
+ */
+ Store (BTVO, Index (PBST, 3))
+
+ Return (PBST)
+ }
+}
diff --git a/src/ec/purism/librem/acpi/ec.asl b/src/ec/purism/librem/acpi/ec.asl
new file mode 100644
index 0000000000..c87a4f7156
--- /dev/null
+++ b/src/ec/purism/librem/acpi/ec.asl
@@ -0,0 +1,233 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 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.
+ */
+
+Device (TPSD)
+{
+ /*
+ * TPSACPI01 is not a valid _HID but it is what the linux topstar
+ * laptop driver expects, use this indirection to let it compile.
+ */
+ Name (BHID, "TPSACPI01")
+ Method (_HID)
+ {
+ Return (BHID)
+ }
+ Name (_UID, 0)
+
+ Method (FNCX, 1, NotSerialized)
+ {
+ If (LEqual (Arg0, 0x86)) {
+ /* Enable topstar-laptop kernel driver handling */
+ Store (One, ^^EC.TPSE)
+ } ElseIf (LEqual (Arg0, 0x87)) {
+ /* Disable topstar-laptop kernel driver handling */
+ Store (Zero, ^^EC.TPSE)
+ }
+ }
+}
+
+Device (EC)
+{
+ Name (_HID, EisaId ("PNP0C09"))
+ Name (_UID, 0)
+ Name (_GPE, EC_SCI_GPI)
+
+ Name (_CRS, ResourceTemplate () {
+ IO (Decode16, 0x62, 0x62, 0, 1)
+ IO (Decode16, 0x66, 0x66, 0, 1)
+ })
+
+ OperationRegion (ERAM, EmbeddedControl, Zero, 0xFF)
+ Field (ERAM, ByteAcc, Lock, Preserve)
+ {
+ Offset (0x15),
+ BSTS, 2, /* Battery Status */
+ , 3,
+ BTEX, 1, /* Battery Present */
+ Offset (0x1D),
+ TPAD, 1, /* Touchpad Enable/Disable */
+ WIFI, 1, /* WiFi Enable/Disable */
+ , 2,
+ BTLE, 1, /* Bluetooth Enable/Disable */
+ Offset (0x25),
+ , 5,
+ TPSE, 1, /* topstar-laptop driver enable/disable */
+ Offset (0x31),
+ , 6,
+ LIDS, 1, /* LID Switch */
+ ACEX, 1, /* AC present */
+ Offset (0x8E),
+ BTDA, 16, /* Battery Design Capacity */
+ Offset (0x92),
+ BTVO, 16, /* Battery Present Voltage */
+ Offset (0x98),
+ BTRA, 16, /* Battery Remaining Capacity */
+ BTDF, 16, /* Battery Last Full Charge Capacity */
+ Offset (0x9E),
+ , 4,
+ BFCR, 1, /* Battery Level Critical */
+ Offset (0xA0),
+ BTDV, 16, /* Battery Design Voltage */
+ Offset (0xA4),
+ BTPR, 16, /* Battery Present Rate */
+ Offset (0xE6),
+ TURB, 1, /* EC Requested Turbo Enable/Disable */
+ EDTB, 1, /* Confirm Turbo Enable/Disable */
+ }
+
+ Method (_REG, 2, NotSerialized)
+ {
+ /* Initialize AC power state */
+ Store (ACEX, \PWRS)
+
+ /* Initialize LID switch state */
+ Store (LIDS, \LIDS)
+ }
+
+ /* Notify topstar-laptop kernel driver */
+ Method (TPSN, 1)
+ {
+ If (TPSE) {
+ Notify (^^TPSD, Arg0)
+ }
+ }
+
+ /* KEY_WWW */
+ Method (_Q10)
+ {
+ TPSN (0x8A)
+ }
+
+ /* KEY_MAIL */
+ Method (_Q11)
+ {
+ TPSN (0x8B)
+ }
+
+ /* KEY_MEDIA */
+ Method (_Q12)
+ {
+ TPSN (0x8C)
+ }
+
+ /* AC Status Changed */
+ Method (_Q20)
+ {
+ Store (ACEX, \PWRS)
+ Notify (AC, 0x80)
+ Notify (BAT, 0x80)
+ PNOT ()
+ }
+
+ /* Lid Event */
+ Method (_Q21)
+ {
+ Store (LIDS, \LIDS)
+ Notify (LID0, 0x80)
+ }
+
+ /* Battery Event */
+ Method (_Q22)
+ {
+ Notify (BAT, 0x80)
+ }
+
+ /* KEY_SWITCHVIDEOMODE */
+ Method (_Q25)
+ {
+ TPSN (0x86)
+ }
+
+ /* KEY_BRIGHTNESSUP */
+ Method (_Q28)
+ {
+ TPSN (0x80)
+ }
+
+ /* KEY_BRIGHTNESSDOWN */
+ Method (_Q29)
+ {
+ TPSN (0x81)
+ }
+
+ /* KEY_MUTE */
+ Method (_Q2A)
+ {
+ TPSN (0x85)
+ }
+
+ /* KEY_VOLUMEUP */
+ Method (_Q2B)
+ {
+ TPSN (0x83)
+ }
+
+ /* KEY_VOLUMEDOWN */
+ Method (_Q2C)
+ {
+ TPSN (0x84)
+ }
+
+ /* KEY_SLEEP */
+ Method (_Q2F)
+ {
+ Notify (\_SB.SLPB, 0x80)
+ }
+
+ /* KEY_F13 (Touchpad Enable/Disable)
+ Method (_Q34)
+ {
+ TPSN (0x87)
+ XOr (^TPAD, One, ^TPAD)
+ }
+
+ /* KEY_WLAN */
+ Method (_Q35)
+ {
+ TPSN (0x88)
+ XOr (^WIFI, One, ^WIFI)
+ }
+
+ /* KEY_BLUETOOTH */
+ Method (_Q37)
+ {
+ XOr (^BTLE, One, ^BTLE)
+ }
+
+ /* Turbo Enable/Disable */
+ Method (_Q50)
+ {
+ /*
+ * Limiting frequency via PPC doesn't do anything if the
+ * kernel is using intel_pstate instead of ACPI _PPC.
+ *
+ * If the state is not updated in EDTB the EC will
+ * repeatedly send this event several times a second
+ * when the system is charging.
+ */
+ If (TURB) {
+ Store (Zero, PPCM)
+ PPCN ()
+ Store (One, EDTB)
+ } Else {
+ Store (One, PPCM)
+ PPCN ()
+ Store (Zero, EDTB)
+ }
+ }
+
+ #include "ac.asl"
+ #include "battery.asl"
+}