From 9fe1f4be9464a5a4590454cbb981f20f913996da Mon Sep 17 00:00:00 2001
From: Chungjui Fan <chungjuifan@google.com>
Date: Thu, 8 Sep 2022 09:36:28 +0000
Subject: [PATCH] Dump the sys node of LED

Bug: 242300919
Change-Id: I04a2cc7cdb80b1d08c5884c26f9edb6782772810
---
 dumpstate/Dumpstate.cpp | 16 ++++++++++++++++
 dumpstate/Dumpstate.h   |  1 +
 2 files changed, 17 insertions(+)

diff --git a/dumpstate/Dumpstate.cpp b/dumpstate/Dumpstate.cpp
index 7956e7ec..cd484408 100644
--- a/dumpstate/Dumpstate.cpp
+++ b/dumpstate/Dumpstate.cpp
@@ -240,6 +240,7 @@ Dumpstate::Dumpstate()
         { "misc", [this](int fd) { dumpMiscSection(fd); } },
         { "gsc", [this](int fd) { dumpGscSection(fd); } },
         { "trusty", [this](int fd) { dumpTrustySection(fd); } },
+        { "led", [this](int fd) { dumpLEDSection(fd); } },
     },
   mLogSections{
         { "modem", [this](int fd, const std::string &destDir) { dumpModemLogs(fd, destDir); } },
@@ -1127,6 +1128,21 @@ void Dumpstate::dumpTrustySection(int fd) {
     RunCommandToFd(fd, "Trusty TEE0 Logs", {"/vendor/bin/sh", "-c", "cat /dev/trusty-log0"}, CommandOptions::WithTimeout(1).Build());
 }
 
+// Dump items related to LED
+void Dumpstate::dumpLEDSection(int fd) {
+    struct stat buffer;
+
+    if (!PropertiesHelper::IsUserBuild()) {
+        if (!stat("/sys/class/leds/green", &buffer)) {
+            DumpFileToFd(fd, "Green LED Brightness", "/sys/class/leds/green/brightness");
+            DumpFileToFd(fd, "Green LED Max Brightness", "/sys/class/leds/green/max_brightness");
+        }
+        if (!stat("/mnt/vendor/persist/led/led_calibration_LUT.txt", &buffer)) {
+            DumpFileToFd(fd, "LED Calibration Data", "/mnt/vendor/persist/led/led_calibration_LUT.txt");
+        }
+    }
+}
+
 void Dumpstate::dumpModemSection(int fd) {
     DumpFileToFd(fd, "Modem Stat", "/data/vendor/modem_stat/debug.txt");
     RunCommandToFd(fd, "Modem SSR history", {"/vendor/bin/sh", "-c",
diff --git a/dumpstate/Dumpstate.h b/dumpstate/Dumpstate.h
index 1f2a5dab..eadaefe6 100644
--- a/dumpstate/Dumpstate.h
+++ b/dumpstate/Dumpstate.h
@@ -69,6 +69,7 @@ class Dumpstate : public BnDumpstateDevice {
     void dumpMiscSection(int fd);
     void dumpGscSection(int fd);
     void dumpTrustySection(int fd);
+    void dumpLEDSection(int fd);
 
     void dumpLogSection(int fd, int fdModem);