From b830386e807629b64a91531bc585ec99eb42e037 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jeremy@system76.com>
Date: Wed, 12 Feb 2020 14:36:56 -0700
Subject: [PATCH] Add ECOS

---
 src/board/system76/lemp9/acpi.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/board/system76/lemp9/acpi.c b/src/board/system76/lemp9/acpi.c
index af20aad..bd9e345 100644
--- a/src/board/system76/lemp9/acpi.c
+++ b/src/board/system76/lemp9/acpi.c
@@ -8,6 +8,8 @@
 
 extern uint8_t sci_extra;
 
+uint8_t ecos = 0;
+
 static uint8_t fcmd = 0;
 static uint8_t fdat = 0;
 static uint8_t fbuf[4] = { 0, 0, 0, 0 };
@@ -81,6 +83,8 @@ uint8_t acpi_read(uint8_t addr) {
         ACPI_16(0x2E, battery_remaining_capacity);
         ACPI_16(0x32, battery_voltage);
 
+        ACPI_8(0x68, ecos);
+
         ACPI_8(0xCC, sci_extra);
 
         // Set size of flash (from old firmware)
@@ -108,6 +112,10 @@ void acpi_write(uint8_t addr, uint8_t data) {
             lid_wake = (bool)(data & (1 << 2));
             break;
 
+        case 0x68:
+            ecos = data;
+            break;
+
         case 0xF8:
             fcmd = data;
             fcommand();