[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/devtools/met-driver/4.9/common/met_backlight.c b/src/devtools/met-driver/4.9/common/met_backlight.c
new file mode 100644
index 0000000..37f1ae9
--- /dev/null
+++ b/src/devtools/met-driver/4.9/common/met_backlight.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#define MET_USER_EVENT_SUPPORT
+#include "met_drv.h"
+#include "trace.h"
+
+static int met_backlight_enable;
+static DEFINE_SPINLOCK(met_backlight_lock);
+static struct kobject *kobj_met_backlight;
+
+static ssize_t bl_tag_enable_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf);
+static ssize_t bl_tag_enable_store(struct kobject *kobj,
+ struct kobj_attribute *attr, const char *buf, size_t n);
+static struct kobj_attribute bl_tag_enable_attr =
+__ATTR(backlight_tag_enable, 0664, bl_tag_enable_show, bl_tag_enable_store);
+
+int enable_met_backlight_tag(void)
+{
+ return met_backlight_enable;
+}
+
+int output_met_backlight_tag(int level)
+{
+ int ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&met_backlight_lock, flags);
+#ifdef CONFIG_MET_MODULE
+ ret = met_tag_oneshot_real(33880, "_MM_BL_", level);
+#else
+ ret = met_tag_oneshot(33880, "_MM_BL_", level);
+#endif
+ spin_unlock_irqrestore(&met_backlight_lock, flags);
+
+ return ret;
+}
+
+static ssize_t bl_tag_enable_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
+{
+ int ret;
+
+ ret = snprintf(buf, PAGE_SIZE, "%d\n", met_backlight_enable);
+
+ return ret;
+}
+
+static ssize_t bl_tag_enable_store(struct kobject *kobj,
+ struct kobj_attribute *attr, const char *buf, size_t n)
+{
+ int value;
+
+ if ((n == 0) || (buf == NULL))
+ return -EINVAL;
+
+ if (kstrtoint(buf, 0, &value) != 0)
+ return -EINVAL;
+
+ if (value < 0)
+ return -EINVAL;
+
+ met_backlight_enable = value;
+
+ return n;
+}
+
+static int met_backlight_create(struct kobject *parent)
+{
+ int ret = 0;
+
+ kobj_met_backlight = parent;
+
+ ret = sysfs_create_file(kobj_met_backlight, &bl_tag_enable_attr.attr);
+ if (ret != 0) {
+ pr_debug("Failed to create montype0 in sysfs\n");
+ return ret;
+ }
+
+ return ret;
+}
+
+static void met_backlight_delete(void)
+{
+ sysfs_remove_file(kobj_met_backlight, &bl_tag_enable_attr.attr);
+ kobj_met_backlight = NULL;
+}
+
+struct metdevice met_backlight = {
+ .name = "backlight",
+ .owner = THIS_MODULE,
+ .type = MET_TYPE_BUS,
+ .create_subfs = met_backlight_create,
+ .delete_subfs = met_backlight_delete,
+ .cpu_related = 0,
+};
+EXPORT_SYMBOL(met_backlight);