commit 0c226b7921b421dd24363f15aefef1236aa25287
author Ananth Raghavan Subramanian <sananth@codeaurora.org> Tue Jun 27 21:28:43 2017 -0700
committer Sathish Ambley <sathishambley@codeaurora.org> Thu Jul 06 22:27:05 2017 -0700
tree d43e1d8e6fa356c0aa63691814cc4888e76ec237
parent 408ada31b5534816127eaace4e9278ae801e4e77

power: Using PerfHAL API

Using the PerfHAL API to comply with Treble

Change-Id: I0ce40bbefb8c867dda8ee5eb1f948af2106e692d

utils.c

diff --git a/utils.c b/utils.c
index 860ae9d..af8e815 100644
--- a/utils.c
+++ b/utils.c
@@ -49,26 +49,24 @@
     "sys/devices/system/cpu/cpu3/cpufreq/scaling_governor"
 };
 
+#define PERF_HAL_PATH "libqti-perfd-client.so"
 static void *qcopt_handle;
 static int (*perf_lock_acq)(unsigned long handle, int duration,
     int list[], int numArgs);
 static int (*perf_lock_rel)(unsigned long handle);
+static int (*perf_hint)(int, char *, int, int);
 static struct list_node active_hint_list_head;
 
 static void *get_qcopt_handle()
 {
-    char qcopt_lib_path[PATH_MAX] = {0};
     void *handle = NULL;
 
     dlerror();
 
-    if (property_get("ro.vendor.extension_library", qcopt_lib_path,
-                NULL)) {
-        handle = dlopen(qcopt_lib_path, RTLD_NOW);
-        if (!handle) {
-            ALOGE("Unable to open %s: %s\n", qcopt_lib_path,
-                    dlerror());
-        }
+    handle = dlopen(PERF_HAL_PATH, RTLD_NOW);
+    if (!handle) {
+        ALOGE("Unable to open %s: %s\n", PERF_HAL_PATH,
+                dlerror());
     }
 
     return handle;
@@ -96,6 +94,12 @@
         if (!perf_lock_rel) {
             ALOGE("Unable to get perf_lock_rel function handle.\n");
         }
+
+        perf_hint = dlsym(qcopt_handle, "perf_hint");
+
+        if (!perf_hint) {
+            ALOGE("Unable to get perf_hint function handle.\n");
+        }
     }
 }
 
@@ -237,6 +241,26 @@
     return lock_handle;
 }
 
+//this is interaction_with_handle using perf_hint instead of
+//perf_lock_acq
+int perf_hint_enable(int hint_id , int duration)
+{
+    int lock_handle = 0;
+
+    if (duration < 0)
+        return 0;
+
+    if (qcopt_handle) {
+        if (perf_hint) {
+            lock_handle = perf_hint(hint_id, NULL, duration, -1);
+            if (lock_handle == -1)
+                ALOGE("Failed to acquire lock.");
+        }
+    }
+    return lock_handle;
+}
+
+
 void release_request(int lock_handle) {
     if (qcopt_handle && perf_lock_rel)
         perf_lock_rel(lock_handle);