device-node: Add led structuressubmit/tizen/20150225.080307accepted/tizen/wearable/20150226.095205accepted/tizen/tv/20150226.094255accepted/tizen/mobile/20150226.100152accepted/tizen/common/20150226.084857

Led device support to control the brightness level, color and duty.

There is an detail information in Tizen Wiki:
https://wiki.tizen.org/wiki/HAL_upgrade_for_Tizen_3.0#Device

Signed-off-by: Jiyoung Yun <jy910.yun@samsung.com>
Change-Id: I70b0402fb528ba057ec782c4ba1718eb3dbd4225

2 files changed, 75 insertions, 1 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a156cd9..8accafd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,7 +28,8 @@ SET(HEADERS
 
 SET(HW_HEADERS
 	hw/common.h
-	hw/backlight.h)
+	hw/backlight.h
+	hw/led.h)
 
 INCLUDE(devices/CMakeLists.txt)
 
diff --git a/hw/led.h b/hw/led.h
new file mode 100644
index 0000000..69c6c10
--- /dev/null
+++ b/hw/led.h
@@ -0,0 +1,73 @@
+/*
+ * libdevice-node
+ *
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef __HW_LED_H__
+#define __HW_LED_H__
+
+#include <hw/common.h>
+
+/**
+ * The id of this device
+ */
+#define LED_HARDWARE_DEVICE_ID	"led"
+
+/**
+ * The version of this device
+ */
+#define LED_HARDWARE_DEVICE_VERSION	MAKE_VERSION(1,0)
+
+/**
+ * The id of led devices
+ */
+#define LED_ID_CAMERA_BACK      "camera_back"
+#define LED_ID_CAMERA_FRONT     "camera_front"
+#define LED_ID_NOTIFICATION     "notification"
+#define LED_ID_TOUCH_KEY        "touch_key"
+
+enum led_type {
+	LED_TYPE_MANUAL,
+	LED_TYPE_BLINK,
+};
+
+struct led_state {
+	/* Led type */
+	enum led_type type;
+	/**
+	 * The first byte means opaque and the other 3 bytes are RGB values.
+	 * You can use opaque byte as a led brightness value.
+	 * If the first byte is 0x00, led will be turned off.
+	 * Anything else will be worked as on. The max value is 0xFF.
+	 */
+	unsigned int color;
+	/* Turn on time in milliseconds */
+	int duty_on;
+	/* Turn off time in milliseconds */
+	int duty_off;
+};
+
+struct led_device {
+	struct hw_common common;
+
+	/**
+	 * Set led state
+	 */
+	int (*set_state)(struct led_state *state);
+};
+
+#endif