From: fredrick.kim <fredrick.kim@samsung.com>
Date: Fri, 12 Aug 2011 06:51:11 +0000 (+0900)
Subject: /sys/class/lcd/emulator node is created.
X-Git-Tag: 2.2.1_release^2~182^2~46^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=98eea483f1fdce87c30f37ab26aeae46aae35215;p=sdk%2Femulator%2Femulator-kernel.git

/sys/class/lcd/emulator node is created.
---

diff --git a/arch/x86/configs/i386_emul_defconfig b/arch/x86/configs/i386_emul_defconfig
index 1d849b5a4127..edffcde1750e 100644
--- a/arch/x86/configs/i386_emul_defconfig
+++ b/arch/x86/configs/i386_emul_defconfig
@@ -1718,6 +1718,7 @@ CONFIG_BACKLIGHT_EMUL=y
 # Display device support
 #
 # CONFIG_DISPLAY_SUPPORT is not set
+CONFIG_EMUL_LCD=y
 
 #
 # Console display driver support
diff --git a/drivers/samsung/Kconfig b/drivers/samsung/Kconfig
index 400342a93e68..e44331110b12 100755
--- a/drivers/samsung/Kconfig
+++ b/drivers/samsung/Kconfig
@@ -3,5 +3,9 @@ menu "Virtual_3D_Accelerator"
 config HW_ACCELERATOR
 	tristate "Samsung Virtual 3D Accelerator driver"
 	default n
+
+config EMUL_LCD
+	tristate "Samsung emulator LCD driver"
+	default n
 endmenu
 
diff --git a/drivers/samsung/Makefile b/drivers/samsung/Makefile
index a7c9c57efbaa..61a5227b334b 100755
--- a/drivers/samsung/Makefile
+++ b/drivers/samsung/Makefile
@@ -1,2 +1,3 @@
 obj-$(CONFIG_HW_ACCELERATOR)	+= Accelerator.o
+obj-$(CONFIG_EMUL_LCD) += emul_lcd.o
 
diff --git a/drivers/samsung/emul_lcd.c b/drivers/samsung/emul_lcd.c
new file mode 100644
index 000000000000..268032c893ed
--- /dev/null
+++ b/drivers/samsung/emul_lcd.c
@@ -0,0 +1,60 @@
+/*
+ * LCD node
+ *
+ * Copyright (C) 2003,2004 Hewlett-Packard Company
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/notifier.h>
+#include <linux/ctype.h>
+#include <linux/err.h>
+
+#include <asm/uaccess.h>
+
+static struct class *emul_lcd_class;
+static struct device *emul_lcd_dev;
+
+static int __init emul_lcd_class_init(void)
+{
+	int i, ret;
+
+	emul_lcd_class = class_create(THIS_MODULE, "lcd");
+	if (IS_ERR(emul_lcd_class)) {
+		printk(KERN_WARNING "Unable to create backlight class; errno = %ld\n",
+				PTR_ERR(emul_lcd_class));
+		return PTR_ERR(emul_lcd_class);
+	}
+
+	emul_lcd_dev = device_create(emul_lcd_class, NULL, NULL, NULL, "emulator");
+
+	/*
+	for (i=0; i < ARRAY_SIZE(emul_bl_device_attrib); i++) {
+		ret = device_create_file(emul_backlight_dev, emul_bl_device_attrib[i]);
+		if (ret != 0) {
+			printk(KERN_ERR "emul_bl: Failed to create attr %d: %d\n", i, ret);
+			return ret;
+		}
+	}
+	*/
+
+	return 0;
+}
+
+static void __exit emul_lcd_class_exit(void)
+{
+	class_destroy(emul_lcd_class);
+}
+
+/*
+ * if this is compiled into the kernel, we need to ensure that the
+ * class is registered before users of the class try to register lcd's
+ */
+module_init(emul_lcd_class_init);
+module_exit(emul_lcd_class_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("s-core");
+MODULE_DESCRIPTION("Emulator LCD driver for x86");