[Hackndev-commit] SF.net SVN: hackndev: [1303] linux4palm/linux/trunk/arch/arm/mach-pxa/ palmz72/palmz72_border.c

[<z7...@us...>]

Revision: 1303
          http://hackndev.svn.sourceforge.net/hackndev/?rev=1303&view=rev
Author:   z72ka
Date:     2007-09-10 01:13:39 -0700 (Mon, 10 Sep 2007)

Log Message:
-----------
palmz72: Added missing file

Added Paths:
-----------
    linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_border.c

Added: linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_border.c
===================================================================
--- linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_border.c	                        (rev 0)
+++ linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_border.c	2007-09-10 08:13:39 UTC (rev 1303)
@@ -0,0 +1,115 @@
+/*
+ *  	PalmOne Zire 72 LCD Border switch
+ * 		(Based on Palm LD LCD border switch) 
+ *
+ *  	Author: Marek Vasut <mar...@gm...>
+ * 		Modification for Palm Zire 72:	Jan Herman <z7...@ha...>
+ * 
+ *      This program is free software; you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2 of the License, or
+ *      (at your option) any later version.
+ *      
+ *      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.
+ *      
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *      MA 02110-1301, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/palmz72-gpio.h>
+
+static ssize_t palmz72_border_write(struct device *dev, struct device_attribute *attr,
+				   const char *buf, size_t count)
+{
+	signed long state = simple_strtol(buf, NULL, 10);
+	
+	if ( state >= 1 )
+	    SET_PALMZ72_GPIO(BORDER_SELECT, 1);
+	else
+	    SET_PALMZ72_GPIO(BORDER_SELECT, 0);
+
+	msleep(50);
+	SET_PALMZ72_GPIO(BORDER_SWITCH, 1);
+
+	if ((state == 1) || (state == 0)) /* default - switch border on/off */
+	    msleep(200);
+	else { /* hidden functionality - colored border */
+	    if (state >= 0)
+		msleep(state);
+	    else
+		msleep(-state);
+	}
+
+	SET_PALMZ72_GPIO(BORDER_SWITCH, 0);
+
+	return count;
+}
+
+static ssize_t palmz72_border_read(struct device *dev, 
+				  struct device_attribute *attr,
+				  char *buf)
+{
+	return strlcpy(buf, GET_PALMZ72_GPIO(BORDER_SELECT) ? "1\n" : "0\n", 3);
+}
+
+static DEVICE_ATTR(border_power, 0644, palmz72_border_read, palmz72_border_write);
+
+static struct attribute *palmz72_border_attrs[] = {
+	&dev_attr_border_power.attr,
+	NULL
+};
+
+static struct attribute_group palmz72_border_attr_group = {
+	.attrs	= palmz72_border_attrs,
+};
+
+static int __devinit palmz72_border_probe(struct platform_device *pdev)
+{
+	return sysfs_create_group(&pdev->dev.kobj, &palmz72_border_attr_group);
+}
+
+static int palmz72_border_remove(struct platform_device *pdev)
+{
+	sysfs_remove_group(&pdev->dev.kobj, &palmz72_border_attr_group);
+	return 0;
+}
+
+static struct platform_driver palmz72_border_driver = {
+	.probe 		= palmz72_border_probe,
+	.remove		= palmz72_border_remove,
+	.suspend 	= NULL,
+	.resume		= NULL,
+	.driver = {
+		.name 	= "palmz72-border",
+	}
+};
+
+static int __init palmz72_border_init(void)
+{
+	printk(KERN_INFO "LCD border driver registered\n");
+	return platform_driver_register(&palmz72_border_driver);
+}
+
+static void palmz72_border_exit(void)
+{
+	printk(KERN_INFO "LCD border driver unregistered\n");
+	platform_driver_unregister(&palmz72_border_driver);
+}
+
+module_init(palmz72_border_init);
+module_exit(palmz72_border_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jan Herman <z7...@ha...>");
+MODULE_DESCRIPTION("PalmOne Zire72 Border switch");


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