From 70e6476208b767a741347ae48c7111406dc5fda8 Mon Sep 17 00:00:00 2001
From: Tim Crawford <tcrawford@system76.com>
Date: Thu, 27 Aug 2020 15:09:39 -0600
Subject: [PATCH] power: Enable Wake-on-LAN

---
 src/board/system76/addw2/gpio.c               |  1 +
 src/board/system76/addw2/include/board/gpio.h |  1 +
 src/board/system76/bonw14/gpio.c              |  1 +
 .../system76/bonw14/include/board/gpio.h      |  1 +
 src/board/system76/common/power.c             | 22 +++++++++++++++++++
 src/board/system76/darp5/gpio.c               |  1 +
 src/board/system76/darp5/include/board/gpio.h |  1 +
 src/board/system76/galp3-c/gpio.c             |  1 +
 .../system76/galp3-c/include/board/gpio.h     |  1 +
 src/board/system76/gaze15/gpio.c              |  1 +
 .../system76/gaze15/include/board/gpio.h      |  1 +
 src/board/system76/lemp9/include/board/gpio.h |  1 +
 src/board/system76/oryp6/gpio.c               |  1 +
 src/board/system76/oryp6/include/board/gpio.h |  1 +
 14 files changed, 35 insertions(+)

diff --git a/src/board/system76/addw2/gpio.c b/src/board/system76/addw2/gpio.c
index e3b8c26..d7ccb65 100644
--- a/src/board/system76/addw2/gpio.c
+++ b/src/board/system76/addw2/gpio.c
@@ -12,6 +12,7 @@ struct Gpio __code DGPU_PWR_EN =    GPIO(H, 4);
 struct Gpio __code EC_EN =          GPIO(B, 6); // renamed to SUSBC_EN
 struct Gpio __code EC_RSMRST_N =    GPIO(E, 5);
 struct Gpio __code GC6_FB_EN =      GPIO(H, 3);
+struct Gpio __code LAN_WAKEUP_N =   GPIO(B, 2);
 struct Gpio __code LED_ACIN =       GPIO(C, 7);
 struct Gpio __code LED_AIRPLANE_N = GPIO(H, 7);
 struct Gpio __code LED_CAP_N =      GPIO(J, 2);
diff --git a/src/board/system76/addw2/include/board/gpio.h b/src/board/system76/addw2/include/board/gpio.h
index 4fb84b1..36d8879 100644
--- a/src/board/system76/addw2/include/board/gpio.h
+++ b/src/board/system76/addw2/include/board/gpio.h
@@ -23,6 +23,7 @@ extern struct Gpio __code DGPU_PWR_EN;
 extern struct Gpio __code EC_EN; // renamed to SUSBC_EN
 extern struct Gpio __code EC_RSMRST_N;
 extern struct Gpio __code GC6_FB_EN;
+extern struct Gpio __code LAN_WAKEUP_N;
 extern struct Gpio __code LED_ACIN;
 extern struct Gpio __code LED_AIRPLANE_N;
 extern struct Gpio __code LED_CAP_N;
diff --git a/src/board/system76/bonw14/gpio.c b/src/board/system76/bonw14/gpio.c
index 0294e16..d8e690c 100644
--- a/src/board/system76/bonw14/gpio.c
+++ b/src/board/system76/bonw14/gpio.c
@@ -15,6 +15,7 @@ struct Gpio __code DGPU_PWR_EN =    GPIO(A, 0);
 struct Gpio __code EC_EN =          GPIO(B, 6);
 struct Gpio __code EC_RSMRST_N =    GPIO(E, 5);
 struct Gpio __code GC6_FB_EN =      GPIO(H, 3);
+struct Gpio __code LAN_WAKEUP_N =   GPIO(B, 2); // renamed to LAN_WAKE#
 struct Gpio __code LED_ACIN =       GPIO(C, 7);
 struct Gpio __code LED_BAT_CHG =    GPIO(H, 5);
 struct Gpio __code LED_BAT_FULL =   GPIO(J, 0);
diff --git a/src/board/system76/bonw14/include/board/gpio.h b/src/board/system76/bonw14/include/board/gpio.h
index be0e1eb..1b8fcd3 100644
--- a/src/board/system76/bonw14/include/board/gpio.h
+++ b/src/board/system76/bonw14/include/board/gpio.h
@@ -26,6 +26,7 @@ extern struct Gpio __code DGPU_PWR_EN;
 extern struct Gpio __code EC_EN;
 extern struct Gpio __code EC_RSMRST_N;
 extern struct Gpio __code GC6_FB_EN;
+extern struct Gpio __code LAN_WAKEUP_N;
 extern struct Gpio __code LED_ACIN;
 #define HAVE_LED_AIRPLANE_N 0
 extern struct Gpio __code LED_BAT_CHG;
diff --git a/src/board/system76/common/power.c b/src/board/system76/common/power.c
index e9f947d..50894af 100644
--- a/src/board/system76/common/power.c
+++ b/src/board/system76/common/power.c
@@ -24,6 +24,10 @@
     #define HAVE_EC_EN 1
 #endif
 
+#ifndef HAVE_LAN_WAKEUP_N
+    #define HAVE_LAN_WAKEUP_N 1
+#endif
+
 #ifndef HAVE_LED_BAT_CHG
     #define HAVE_LED_BAT_CHG 1
 #endif
@@ -486,6 +490,24 @@ void power_event(void) {
         }
     }
 
+#if HAVE_LAN_WAKEUP_N
+    static bool wake_last = true;
+    bool wake_new = gpio_get(&LAN_WAKEUP_N);
+    if (!wake_new && wake_last) {
+        update_power_state();
+        DEBUG("%02X: LAN_WAKEUP# asserted\n", main_cycle);
+        if (power_state == POWER_STATE_DS5) {
+            power_on_s5();
+        }
+    }
+    #if LEVEL >= LEVEL_DEBUG
+        else if (wake_new && !wake_last) {
+            DEBUG("%02X: LAN_WAKEUP# de-asserted\n", main_cycle);
+        }
+    #endif
+    wake_last = wake_new;
+#endif // HAVE_LAN_WAKEUP_N
+
     static uint32_t last_time = 0;
     uint32_t time = time_get();
     if (power_state == POWER_STATE_S0) {
diff --git a/src/board/system76/darp5/gpio.c b/src/board/system76/darp5/gpio.c
index ec639cf..1fed325 100644
--- a/src/board/system76/darp5/gpio.c
+++ b/src/board/system76/darp5/gpio.c
@@ -11,6 +11,7 @@ struct Gpio __code CCD_EN =         GPIO(G, 0);
 struct Gpio __code DD_ON =          GPIO(E, 4);
 struct Gpio __code EC_EN =          GPIO(E, 1);
 struct Gpio __code EC_RSMRST_N =    GPIO(E, 5);
+struct Gpio __code LAN_WAKEUP_N =   GPIO(B, 2);
 struct Gpio __code LED_ACIN =       GPIO(C, 7);
 struct Gpio __code LED_AIRPLANE_N = GPIO(G, 6);
 struct Gpio __code LED_BAT_CHG =    GPIO(A, 5);
diff --git a/src/board/system76/darp5/include/board/gpio.h b/src/board/system76/darp5/include/board/gpio.h
index b6ac461..0f34c23 100644
--- a/src/board/system76/darp5/include/board/gpio.h
+++ b/src/board/system76/darp5/include/board/gpio.h
@@ -22,6 +22,7 @@ extern struct Gpio __code CCD_EN;
 extern struct Gpio __code DD_ON;
 extern struct Gpio __code EC_EN;
 extern struct Gpio __code EC_RSMRST_N;
+extern struct Gpio __code LAN_WAKEUP_N;
 extern struct Gpio __code LED_ACIN;
 extern struct Gpio __code LED_AIRPLANE_N;
 extern struct Gpio __code LED_BAT_CHG;
diff --git a/src/board/system76/galp3-c/gpio.c b/src/board/system76/galp3-c/gpio.c
index d40203c..18d7481 100644
--- a/src/board/system76/galp3-c/gpio.c
+++ b/src/board/system76/galp3-c/gpio.c
@@ -11,6 +11,7 @@ struct Gpio __code CCD_EN =         GPIO(G, 0);
 struct Gpio __code DD_ON =          GPIO(E, 4);
 struct Gpio __code EC_EN =          GPIO(E, 1);
 struct Gpio __code EC_RSMRST_N =    GPIO(E, 5);
+struct Gpio __code LAN_WAKEUP_N =   GPIO(B, 2);
 struct Gpio __code LED_ACIN =       GPIO(C, 7);
 struct Gpio __code LED_AIRPLANE_N = GPIO(G, 6);
 struct Gpio __code LED_BAT_CHG =    GPIO(A, 5);
diff --git a/src/board/system76/galp3-c/include/board/gpio.h b/src/board/system76/galp3-c/include/board/gpio.h
index b6ac461..0f34c23 100644
--- a/src/board/system76/galp3-c/include/board/gpio.h
+++ b/src/board/system76/galp3-c/include/board/gpio.h
@@ -22,6 +22,7 @@ extern struct Gpio __code CCD_EN;
 extern struct Gpio __code DD_ON;
 extern struct Gpio __code EC_EN;
 extern struct Gpio __code EC_RSMRST_N;
+extern struct Gpio __code LAN_WAKEUP_N;
 extern struct Gpio __code LED_ACIN;
 extern struct Gpio __code LED_AIRPLANE_N;
 extern struct Gpio __code LED_BAT_CHG;
diff --git a/src/board/system76/gaze15/gpio.c b/src/board/system76/gaze15/gpio.c
index 36157c4..d450a22 100644
--- a/src/board/system76/gaze15/gpio.c
+++ b/src/board/system76/gaze15/gpio.c
@@ -12,6 +12,7 @@ struct Gpio __code DD_ON =          GPIO(E, 4);
 struct Gpio __code DGPU_PWR_EN =    GPIO(J, 2);
 struct Gpio __code EC_RSMRST_N =    GPIO(E, 5);
 struct Gpio __code GC6_FB_EN =      GPIO(J, 3);
+struct Gpio __code LAN_WAKEUP_N =   GPIO(B, 2);
 struct Gpio __code LED_ACIN =       GPIO(C, 7);
 struct Gpio __code LED_AIRPLANE_N = GPIO(H, 7);
 struct Gpio __code LED_BAT_CHG =    GPIO(H, 5);
diff --git a/src/board/system76/gaze15/include/board/gpio.h b/src/board/system76/gaze15/include/board/gpio.h
index 784f910..3cc1671 100644
--- a/src/board/system76/gaze15/include/board/gpio.h
+++ b/src/board/system76/gaze15/include/board/gpio.h
@@ -24,6 +24,7 @@ extern struct Gpio __code DGPU_PWR_EN;
 #define HAVE_EC_EN 0
 extern struct Gpio __code EC_RSMRST_N;
 extern struct Gpio __code GC6_FB_EN;
+extern struct Gpio __code LAN_WAKEUP_N;
 extern struct Gpio __code LED_ACIN;
 extern struct Gpio __code LED_AIRPLANE_N;
 extern struct Gpio __code LED_BAT_CHG;
diff --git a/src/board/system76/lemp9/include/board/gpio.h b/src/board/system76/lemp9/include/board/gpio.h
index a54f45b..f4f7877 100644
--- a/src/board/system76/lemp9/include/board/gpio.h
+++ b/src/board/system76/lemp9/include/board/gpio.h
@@ -23,6 +23,7 @@ extern struct Gpio __code DD_ON;
 extern struct Gpio __code EC_EN;
 extern struct Gpio __code EC_RSMRST_N;
 extern struct Gpio __code EC_SMD_EN_N;
+#define HAVE_LAN_WAKEUP_N 0
 extern struct Gpio __code LED_ACIN;
 #define HAVE_LED_AIRPLANE_N 0
 #define HAVE_LED_BAT_CHG 0
diff --git a/src/board/system76/oryp6/gpio.c b/src/board/system76/oryp6/gpio.c
index c0a7953..0c07ddb 100644
--- a/src/board/system76/oryp6/gpio.c
+++ b/src/board/system76/oryp6/gpio.c
@@ -13,6 +13,7 @@ struct Gpio __code DGPU_PWR_EN =    GPIO(F, 7);
 struct Gpio __code EC_EN =          GPIO(B, 6); // renamed to SUSBC_EN
 struct Gpio __code EC_RSMRST_N =    GPIO(E, 5);
 struct Gpio __code GC6_FB_EN =      GPIO(J, 7);
+struct Gpio __code LAN_WAKEUP_N =   GPIO(B, 2);
 struct Gpio __code LED_ACIN =       GPIO(C, 7);
 struct Gpio __code LED_BAT_CHG =    GPIO(H, 5);
 struct Gpio __code LED_BAT_FULL =   GPIO(J, 0);
diff --git a/src/board/system76/oryp6/include/board/gpio.h b/src/board/system76/oryp6/include/board/gpio.h
index 21b8f10..b3f57d5 100644
--- a/src/board/system76/oryp6/include/board/gpio.h
+++ b/src/board/system76/oryp6/include/board/gpio.h
@@ -24,6 +24,7 @@ extern struct Gpio __code DGPU_PWR_EN;
 extern struct Gpio __code EC_EN;
 extern struct Gpio __code EC_RSMRST_N;
 extern struct Gpio __code GC6_FB_EN;
+extern struct Gpio __code LAN_WAKEUP_N;
 extern struct Gpio __code LED_ACIN;
 #define HAVE_LED_AIRPLANE_N 0
 extern struct Gpio __code LED_BAT_CHG;