target/linux/goldfish/patches-2.6.30/0054-timed_gpio-Separate-timed_output-class-into-a-separ.patch


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
pre { line-height: 125%; margin: 0; }
td.linenos pre { color: #000000; background-color: #f0f0f0; padding: 0 5px 0 5px; }
span.linenos { color: #000000; background-color: #f0f0f0; padding: 0 5px 0 5px; }
td.linenos pre.special { color: #000000; background-color: #ffffc0; padding: 0 5px 0 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding: 0 5px 0 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight { background: #ffffff; }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */#ifndef _SHA1_H
#define _SHA1_H

#ifdef __cplusplus
extern "C" {
#endif

#ifndef _STD_TYPES
#define _STD_TYPES

#define uchar   unsigned char
#define uint    unsigned int
#define ulong   unsigned long int

#endif

typedef struct
{
    ulong total[2];
    ulong state[5];
    uchar buffer[64];
}
sha1_context;

/*
 * Core SHA-1 functions
 */
void sha1_starts( sha1_context *ctx );
void sha1_update( sha1_context *ctx, uchar *input, uint length );
void sha1_finish( sha1_context *ctx, uchar digest[20] );

/*
 * Output SHA-1(file contents), returns 0 if successful.
 */
int sha1_file( char *filename, uchar digest[20] );

/*
 * Output SHA-1(buf)
 */
void sha1_csum( uchar *buf, uint buflen, uchar digest[20] );

/*
 * Output HMAC-SHA-1(key,buf)
 */
void sha1_hmac( uchar *key, uint keylen, uchar *buf, uint buflen,
                uchar digest[20] );

/*
 * Checkup routine
 */
int sha1_self_test( void );

#ifdef __cplusplus
}
#endif

#endif /* sha1.h */
From e4c9c5d7d6d5deb124083678fe5d839d3133f60a Mon Sep 17 00:00:00 2001
From: Mike Lockwood <lockwood@android.com>
Date: Mon, 12 Jan 2009 13:25:05 -0500
Subject: [PATCH 054/134] timed_gpio: Separate timed_output class into a separate driver.
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Mike Lockwood <lockwood@android.com>
Signed-off-by: Arve Hjønnevåg <arve@android.com>
---
 drivers/staging/android/Kconfig        |    6 ++-
 drivers/staging/android/Makefile       |    1 +
 drivers/staging/android/timed_gpio.c   |   98 +++++++++++--------------
 drivers/staging/android/timed_gpio.h   |    4 +-
 drivers/staging/android/timed_output.c |  121 ++++++++++++++++++++++++++++++++
 drivers/staging/android/timed_output.h |   37 ++++++++++
 6 files changed, 210 insertions(+), 57 deletions(-)
 create mode 100644 drivers/staging/android/timed_output.c
 create mode 100644 drivers/staging/android/timed_output.h

--- a/drivers/staging/android/Kconfig
+++ b/drivers/staging/android/Kconfig
@@ -73,9 +73,13 @@ config ANDROID_RAM_CONSOLE_EARLY_SIZE
 	default 0
 	depends on ANDROID_RAM_CONSOLE_EARLY_INIT
 
+config ANDROID_TIMED_OUTPUT
+	bool "Timed output class driver"
+	default y
+
 config ANDROID_TIMED_GPIO
 	tristate "Android timed gpio driver"
-	depends on GENERIC_GPIO
+	depends on GENERIC_GPIO && ANDROID_TIMED_OUTPUT
 	default n
 
 config ANDROID_LOW_MEMORY_KILLER
--- a/drivers/staging/android/Makefile
+++ b/drivers/staging/android/Makefile
@@ -1,5 +1,6 @@
 obj-$(CONFIG_ANDROID_BINDER_IPC)	+= binder.o
 obj-$(CONFIG_ANDROID_LOGGER)		+= logger.o
 obj-$(CONFIG_ANDROID_RAM_CONSOLE)	+= ram_console.o
+obj-$(CONFIG_ANDROID_TIMED_OUTPUT)	+= timed_output.o
 obj-$(CONFIG_ANDROID_TIMED_GPIO)	+= timed_gpio.o
 obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER)	+= lowmemorykiller.o
--- a/drivers/staging/android/timed_gpio.c
+++ b/drivers/staging/android/timed_gpio.c
@@ -20,13 +20,12 @@
 #include <linux/err.h>
 #include <linux/gpio.h>
 
+#include "timed_output.h"
 #include "timed_gpio.h"
 
 
-static struct class *timed_gpio_class;
-
 struct timed_gpio_data {
-	struct device *dev;
+	struct timed_output_dev dev;
 	struct hrtimer timer;
 	spinlock_t lock;
 	unsigned 	gpio;
@@ -36,70 +35,62 @@ struct timed_gpio_data {
 
 static enum hrtimer_restart gpio_timer_func(struct hrtimer *timer)
 {
-	struct timed_gpio_data *gpio_data = container_of(timer, struct timed_gpio_data, timer);
+	struct timed_gpio_data *data =
+		container_of(timer, struct timed_gpio_data, timer);
 
-	gpio_direction_output(gpio_data->gpio, gpio_data->active_low ? 1 : 0);
+	gpio_direction_output(data->gpio, data->active_low ? 1 : 0);
 	return HRTIMER_NORESTART;
 }
 
-static ssize_t gpio_enable_show(struct device *dev, struct device_attribute *attr, char *buf)
+static int gpio_get_time(struct timed_output_dev *dev)
 {
-	struct timed_gpio_data *gpio_data = dev_get_drvdata(dev);
-	int remaining;
+	struct timed_gpio_data	*data =
+		container_of(dev, struct timed_gpio_data, dev);
 
-	if (hrtimer_active(&gpio_data->timer)) {
-		ktime_t r = hrtimer_get_remaining(&gpio_data->timer);
+	if (hrtimer_active(&data->timer)) {
+		ktime_t r = hrtimer_get_remaining(&data->timer);
 		struct timeval t = ktime_to_timeval(r);
-		remaining = t.tv_sec * 1000 + t.tv_usec / 1000;
+		return t.tv_sec * 1000 + t.tv_usec / 1000;
 	} else
-		remaining = 0;
-
-	return sprintf(buf, "%d\n", remaining);
+		return 0;
 }
 
-static ssize_t gpio_enable_store(
-		struct device *dev, struct device_attribute *attr,
-		const char *buf, size_t size)
+static void gpio_enable(struct timed_output_dev *dev, int value)
 {
-	struct timed_gpio_data *gpio_data = dev_get_drvdata(dev);
-	int value;
+	struct timed_gpio_data	*data =
+		container_of(dev, struct timed_gpio_data, dev);
 	unsigned long	flags;
 
-	sscanf(buf, "%d", &value);
-
-	spin_lock_irqsave(&gpio_data->lock, flags);
+	spin_lock_irqsave(&data->lock, flags);
 
 	/* cancel previous timer and set GPIO according to value */
-	hrtimer_cancel(&gpio_data->timer);
-	gpio_direction_output(gpio_data->gpio, gpio_data->active_low ? !value : !!value);
+	hrtimer_cancel(&data->timer);
+	gpio_direction_output(data->gpio, data->active_low ? !value : !!value);
 
 	if (value > 0) {
-		if (value > gpio_data->max_timeout)
-			value = gpio_data->max_timeout;
+		if (value > data->max_timeout)
+			value = data->max_timeout;
 
-		hrtimer_start(&gpio_data->timer,
-						ktime_set(value / 1000, (value % 1000) * 1000000),
-						HRTIMER_MODE_REL);
+		hrtimer_start(&data->timer,
+			ktime_set(value / 1000, (value % 1000) * 1000000),
+			HRTIMER_MODE_REL);
 	}
 
-	spin_unlock_irqrestore(&gpio_data->lock, flags);
-
-	return size;
+	spin_unlock_irqrestore(&data->lock, flags);
 }
 
-static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, gpio_enable_show, gpio_enable_store);
-
 static int timed_gpio_probe(struct platform_device *pdev)
 {
 	struct timed_gpio_platform_data *pdata = pdev->dev.platform_data;
 	struct timed_gpio *cur_gpio;
 	struct timed_gpio_data *gpio_data, *gpio_dat;
-	int i, ret = 0;
+	int i, j, ret = 0;
 
 	if (!pdata)
 		return -EBUSY;
 
-	gpio_data = kzalloc(sizeof(struct timed_gpio_data) * pdata->num_gpios, GFP_KERNEL);
+	gpio_data = kzalloc(sizeof(struct timed_gpio_data) * pdata->num_gpios,
+			GFP_KERNEL);
 	if (!gpio_data)
 		return -ENOMEM;
 
@@ -107,23 +98,26 @@ static int timed_gpio_probe(struct platf
 		cur_gpio = &pdata->gpios[i];
 		gpio_dat = &gpio_data[i];
 
-		hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+		hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC,
+				HRTIMER_MODE_REL);
 		gpio_dat->timer.function = gpio_timer_func;
 		spin_lock_init(&gpio_dat->lock);
 
+		gpio_dat->dev.name = cur_gpio->name;
+		gpio_dat->dev.get_time = gpio_get_time;
+		gpio_dat->dev.enable = gpio_enable;
+		ret = timed_output_dev_register(&gpio_dat->dev);
+		if (ret < 0) {
+			for (j = 0; j < i; j++)
+				timed_output_dev_unregister(&gpio_data[i].dev);
+			kfree(gpio_data);
+			return ret;
+		}
+
 		gpio_dat->gpio = cur_gpio->gpio;
 		gpio_dat->max_timeout = cur_gpio->max_timeout;
 		gpio_dat->active_low = cur_gpio->active_low;
 		gpio_direction_output(gpio_dat->gpio, gpio_dat->active_low);
-
-		gpio_dat->dev = device_create(timed_gpio_class, &pdev->dev, 0, "%s", cur_gpio->name);
-		if (unlikely(IS_ERR(gpio_dat->dev)))
-			return PTR_ERR(gpio_dat->dev);
-
-		dev_set_drvdata(gpio_dat->dev, gpio_dat);
-		ret = device_create_file(gpio_dat->dev, &dev_attr_enable);
-		if (ret)
-			return ret;
 	}
 
 	platform_set_drvdata(pdev, gpio_data);
@@ -137,10 +131,8 @@ static int timed_gpio_remove(struct plat
 	struct timed_gpio_data *gpio_data = platform_get_drvdata(pdev);
 	int i;
 
-	for (i = 0; i < pdata->num_gpios; i++) {
-		device_remove_file(gpio_data[i].dev, &dev_attr_enable);
-		device_unregister(gpio_data[i].dev);
-	}
+	for (i = 0; i < pdata->num_gpios; i++)
+		timed_output_dev_unregister(&gpio_data[i].dev);
 
 	kfree(gpio_data);
 
@@ -151,22 +143,18 @@ static struct platform_driver timed_gpio
 	.probe		= timed_gpio_probe,
 	.remove		= timed_gpio_remove,
 	.driver		= {
-		.name		= "timed-gpio",
+		.name		= TIMED_GPIO_NAME,
 		.owner		= THIS_MODULE,
 	},
 };
 
 static int __init timed_gpio_init(void)
 {
-	timed_gpio_class = class_create(THIS_MODULE, "timed_output");
-	if (IS_ERR(timed_gpio_class))
-		return PTR_ERR(timed_gpio_class);
 	return platform_driver_register(&timed_gpio_driver);
 }
 
 static void __exit timed_gpio_exit(void)
 {
-	class_destroy(timed_gpio_class);
 	platform_driver_unregister(&timed_gpio_driver);
 }
 
--- a/drivers/staging/android/timed_gpio.h
+++ b/drivers/staging/android/timed_gpio.h
@@ -16,10 +16,12 @@
 #ifndef _LINUX_TIMED_GPIO_H
 #define _LINUX_TIMED_GPIO_H
 
+#define TIMED_GPIO_NAME "timed-gpio"
+
 struct timed_gpio {
 	const char *name;
 	unsigned 	gpio;
-	int     max_timeout;
+	int		max_timeout;
 	u8 		active_low;
 };
 
--- /dev/null
+++ b/drivers/staging/android/timed_output.c
@@ -0,0 +1,121 @@
+/* drivers/misc/timed_output.c
+ *
+ * Copyright (C) 2009 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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/module.h>
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/err.h>
+
+#include "timed_output.h"
+
+static struct class *timed_output_class;
+static atomic_t device_count;
+
+static ssize_t enable_show(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct timed_output_dev *tdev = dev_get_drvdata(dev);
+	int remaining = tdev->get_time(tdev);
+
+	return sprintf(buf, "%d\n", remaining);
+}
+
+static ssize_t enable_store(
+		struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t size)
+{
+	struct timed_output_dev *tdev = dev_get_drvdata(dev);
+	int value;
+
+	sscanf(buf, "%d", &value);
+	tdev->enable(tdev, value);
+
+	return size;
+}
+
+static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, enable_show, enable_store);
+
+static int create_timed_output_class(void)
+{
+	if (!timed_output_class) {
+		timed_output_class = class_create(THIS_MODULE, "timed_output");
+		if (IS_ERR(timed_output_class))
+			return PTR_ERR(timed_output_class);
+		atomic_set(&device_count, 0);
+	}
+
+	return 0;
+}
+
+int timed_output_dev_register(struct timed_output_dev *tdev)
+{
+	int ret;
+
+	if (!tdev || !tdev->name || !tdev->enable || !tdev->get_time)
+		return -EINVAL;
+
+	ret = create_timed_output_class();
+	if (ret < 0)
+		return ret;
+
+	tdev->index = atomic_inc_return(&device_count);
+	tdev->dev = device_create(timed_output_class, NULL,
+		MKDEV(0, tdev->index), NULL, tdev->name);
+	if (IS_ERR(tdev->dev))
+		return PTR_ERR(tdev->dev);
+
+	ret = device_create_file(tdev->dev, &dev_attr_enable);
+	if (ret < 0)
+		goto err_create_file;
+
+	dev_set_drvdata(tdev->dev, tdev);
+	tdev->state = 0;
+	return 0;
+
+err_create_file:
+	device_destroy(timed_output_class, MKDEV(0, tdev->index));
+	printk(KERN_ERR "timed_output: Failed to register driver %s\n",
+			tdev->name);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(timed_output_dev_register);
+
+void timed_output_dev_unregister(struct timed_output_dev *tdev)
+{
+	device_remove_file(tdev->dev, &dev_attr_enable);
+	device_destroy(timed_output_class, MKDEV(0, tdev->index));
+	dev_set_drvdata(tdev->dev, NULL);
+}
+EXPORT_SYMBOL_GPL(timed_output_dev_unregister);
+
+static int __init timed_output_init(void)
+{
+	return create_timed_output_class();
+}
+
+static void __exit timed_output_exit(void)
+{
+	class_destroy(timed_output_class);
+}
+
+module_init(timed_output_init);
+module_exit(timed_output_exit);
+
+MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
+MODULE_DESCRIPTION("timed output class driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/drivers/staging/android/timed_output.h
@@ -0,0 +1,37 @@
+/* include/linux/timed_output.h
+ *
+ * Copyright (C) 2008 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+*/
+
+#ifndef _LINUX_TIMED_OUTPUT_H
+#define _LINUX_TIMED_OUTPUT_H
+
+struct timed_output_dev {
+	const char	*name;
+
+	/* enable the output and set the timer */
+	void	(*enable)(struct timed_output_dev *sdev, int timeout);
+
+	/* returns the current number of milliseconds remaining on the timer */
+	int		(*get_time)(struct timed_output_dev *sdev);
+
+	/* private data */
+	struct device	*dev;
+	int		index;
+	int		state;
+};
+
+extern int timed_output_dev_register(struct timed_output_dev *dev);
+extern void timed_output_dev_unregister(struct timed_output_dev *dev);
+
+#endif