healthd: Add secondary backlight path support

Some devices require two backlight brightness paths to turn off the screen. Change-Id: Ibf2ee853657c602158af219de0ba132f29dc4571 Signed-off-by: Mrcl1450 <[email protected]>
XperiaSTE · Jul 30, 2015 · d2d26ff · d2d26ff
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commit d2d26ff
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diff --git a/healthd/Android.mk b/healthd/Android.mk
@@ -36,6 +36,7 @@ HEALTHD_CHARGER_DEFINES := RED_LED_PATH \
     GREEN_LED_PATH \
     BLUE_LED_PATH \
     BACKLIGHT_PATH \
+    SECONDARY_BACKLIGHT_PATH \
     CHARGING_ENABLED_PATH
 
 $(foreach healthd_charger_define,$(HEALTHD_CHARGER_DEFINES), \

diff --git a/healthd/healthd_mode_charger.cpp b/healthd/healthd_mode_charger.cpp
@@ -289,6 +289,25 @@ static int set_backlight(bool on)
     }
     close(fd);
 
+#ifdef SECONDARY_BACKLIGHT_PATH
+    if (access(SECONDARY_BACKLIGHT_PATH, R_OK | W_OK) != 0)
+    {
+        LOGW("Secondary Backlight control not support\n");
+        return 0;
+    }
+
+    fd = open(SECONDARY_BACKLIGHT_PATH, O_RDWR);
+    if (fd < 0) {
+        LOGE("Could not open secondary backlight node : %s\n", strerror(errno));
+        return 0;
+    }
+    LOGV("Enabling secondary backlight\n");
+    if (write(fd, buffer,strlen(buffer)) < 0) {
+        LOGE("Could not write to secondary backlight node : %s\n", strerror(errno));
+    }
+    close(fd);
+#endif
+
     return 0;
 }