From f0904133929e343c23988a16d6e616bc4e0c5c76 Mon Sep 17 00:00:00 2001
From: "a.chubar" <a.chubar@bit.games>
Date: Mon, 23 Sep 2024 18:04:47 +0300
Subject: [PATCH] Added CPU freq measurements

---
 device.inc.php | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/device.inc.php b/device.inc.php
index 41b07d4..da08cd5 100644
--- a/device.inc.php
+++ b/device.inc.php
@@ -278,6 +278,42 @@ function device_cputop_async(string $atf_host, string $device) : Amp\Promise
   });
 }
 
+function device_cpu_freq_min_async(string $atf_host, string $device, int $core_index = 0) : Amp\Promise
+{
+  return device_cpu_measure_async($atf_host, $device, "cpuinfo_min_freq", $core_index); 
+}
+
+function device_cpu_freq_max_async(string $atf_host, string $device, int $core_index = 0) : Amp\Promise
+{
+  return device_cpu_measure_async($atf_host, $device, "cpuinfo_max_freq", $core_index); 
+}
+
+function device_cpu_freq_cur_async(string $atf_host, string $device, int $core_index = 0) : Amp\Promise
+{
+  return device_cpu_measure_async($atf_host, $device, "scaling_cur_freq", $core_index); 
+}
+
+function device_cpu_measure_async(string $atf_host, string $device, string $metric, int $core_index) : Amp\Promise
+{
+  return Amp\call(function() use($atf_host, $device, $metric, $core_index) {
+    //NOTE: on current devices 16 thermal zone are responsible for GPU temperature probing
+    list($code, $lines) = yield host_exec_async($atf_host, "%{adb}% -s $device shell cat /sys/devices/system/cpu/cpu$core_index/cpufreq/$metric", DEPLOY_OPT_ERR_OK, 1);
+
+    if($code !== 0)
+      return 0;
+
+    foreach($lines as $idx => $line)
+    {
+      $line = trim($line);
+      if(!$line)
+        continue;
+      return intval($line);
+    }
+
+    return 0;
+  });
+}
+
 function device_temperature_async(string $atf_host, string $device) : Amp\Promise
 {
   return Amp\call(function() use($atf_host, $device) {