From 179dce05bc7faecfc68248e97c208ceabd35142a Mon Sep 17 00:00:00 2001
From: Youngjae Cho <y0.cho@samsung.com>
Date: Fri, 4 Aug 2023 14:23:53 +0900
Subject: [PATCH] display: Add resource attribute representing max brightness

New attribute:
 - id: DEVICED_DISPLAY_ATTR_INT_GET_MAX_BRIGHTNESS
 - type: SYSCOMMON_RESMAN_DATA_TYPE_INT
 - setter: O
 - getter: X

 The previous operations, display_backlight_get_max_brightness(),
has been replaced with operation that accessing the attribute
DEVICED_DISPLAY_ATTR_INT_BRIGHTNESS via resource-manager API.

Change-Id: I6966cbdf4a75795c9f566611424095a04c133bbc
Signed-off-by: Youngjae Cho <y0.cho@samsung.com>
---
 plugins/wearable/display/device-interface.c |  6 +++++-
 src/display/resource-display.c              | 30 +++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/plugins/wearable/display/device-interface.c b/plugins/wearable/display/device-interface.c
index 1128f10..ef892bf 100644
--- a/plugins/wearable/display/device-interface.c
+++ b/plugins/wearable/display/device-interface.c
@@ -31,6 +31,9 @@
 #include <errno.h>
 #include <dlfcn.h>
 #include <hal/device/hal-display.h>
+#include <libsyscommon/resource-manager.h>
+#include <system/syscommon-plugin-deviced-display-interface.h>
+#include <system/syscommon-plugin-deviced-common-interface.h>
 
 #include "ambient-mode.h"
 #include "core/log.h"
@@ -77,7 +80,8 @@ static int set_brightness(int val)
 		return -ENOENT;
 	}
 
-	ret = display_backlight_get_max_brightness(&max);
+	ret = syscommon_resman_get_resource_attr_int(SYSCOMMON_RESOURCE_ID(DEVICED_RESOURCE_TYPE_DISPLAY),
+		DEVICED_DISPLAY_ATTR_INT_GET_MAX_BRIGHTNESS, &max);
 	if (ret < 0) {
 		_E("Failed to get max brightness.");
 		return ret;
diff --git a/src/display/resource-display.c b/src/display/resource-display.c
index 520605a..2523b69 100644
--- a/src/display/resource-display.c
+++ b/src/display/resource-display.c
@@ -25,8 +25,38 @@
 #include <system/syscommon-plugin-deviced-display.h>
 
 #include "shared/common.h"
+#include "display-backlight.h"
+
+static int get_max_brightness(int resource_id,
+	const struct syscommon_resman_resource_attribute *attr, void *data)
+{
+	int brightness = 0;
+	int ret = 0;
+
+	if (!data)
+		return -EINVAL;
+
+	ret = display_backlight_get_max_brightness(&brightness);
+	if (ret < 0)
+		return ret;
+
+	*(int *) data = brightness;
+
+	return 0;
+
+}
 
 static const struct syscommon_resman_resource_attribute display_attrs[] = {
+	{
+		.name = "DEVICED_DISPLAY_ATTR_INT_GET_MAX_BRIGHTNESS",
+		.id = DEVICED_DISPLAY_ATTR_INT_GET_MAX_BRIGHTNESS,
+		.type = SYSCOMMON_RESMAN_DATA_TYPE_INT,
+		.flag = SYSCOMMON_RESMAN_RESOURCE_FLAG_PUBLIC,
+		.ops = {
+			.get = get_max_brightness,
+			.is_supported = syscommon_resman_resource_attr_supported_always
+		},
+	},
 };
 
 static const struct syscommon_resman_resource_driver deviced_display_driver = {
-- 
2.7.4