also take over the files for 2.6.31

SVN-Revision: 17356
This commit is contained in:
Mirko Vogt 2009-08-23 12:00:58 +00:00
parent a25cec813e
commit fb4727d391
11 changed files with 2627 additions and 0 deletions

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/*
* character device wrapper for generic gpio layer
*
* 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., 59 Temple Place, Suite 330, Boston, MA02111-1307USA
*
* Feedback, Bugs... blogic@openwrt.org
*
*/
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/atomic.h>
#include <linux/init.h>
#include <linux/genhd.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/gpio_dev.h>
#define DRVNAME "gpiodev"
#define DEVNAME "gpio"
static int dev_major;
static unsigned int gpio_access_mask;
static struct class *gpiodev_class;
/* Counter is 1, if the device is not opened and zero (or less) if opened. */
static atomic_t gpio_open_cnt = ATOMIC_INIT(1);
static int
gpio_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
{
int retval = 0;
if (((1 << arg) & gpio_access_mask) != (1 << arg))
{
retval = -EINVAL;
goto out;
}
switch (cmd)
{
case GPIO_GET:
retval = gpio_get_value(arg);
break;
case GPIO_SET:
gpio_set_value(arg, 1);
break;
case GPIO_CLEAR:
gpio_set_value(arg, 0);
break;
case GPIO_DIR_IN:
gpio_direction_input(arg);
break;
case GPIO_DIR_OUT:
gpio_direction_output(arg, 0);
break;
default:
retval = -EINVAL;
break;
}
out:
return retval;
}
static int
gpio_open(struct inode *inode, struct file *file)
{
int result = 0;
unsigned int dev_minor = MINOR(inode->i_rdev);
if (dev_minor != 0)
{
printk(KERN_ERR DRVNAME ": trying to access unknown minor device -> %d\n", dev_minor);
result = -ENODEV;
goto out;
}
/* FIXME: We should really allow multiple applications to open the device
* at the same time, as long as the apps access different IO pins.
* The generic gpio-registration functions can be used for that.
* Two new IOCTLs have to be introduced for that. Need to check userspace
* compatibility first. --mb */
if (!atomic_dec_and_test(&gpio_open_cnt)) {
atomic_inc(&gpio_open_cnt);
printk(KERN_ERR DRVNAME ": Device with minor ID %d already in use\n", dev_minor);
result = -EBUSY;
goto out;
}
out:
return result;
}
static int
gpio_close(struct inode * inode, struct file * file)
{
smp_mb__before_atomic_inc();
atomic_inc(&gpio_open_cnt);
return 0;
}
struct file_operations gpio_fops = {
ioctl: gpio_ioctl,
open: gpio_open,
release: gpio_close
};
static int
gpio_probe(struct platform_device *dev)
{
int result = 0;
dev_major = register_chrdev(0, DEVNAME, &gpio_fops);
if (!dev_major)
{
printk(KERN_ERR DRVNAME ": Error whilst opening %s \n", DEVNAME);
result = -ENODEV;
goto out;
}
gpiodev_class = class_create(THIS_MODULE, DRVNAME);
device_create(gpiodev_class, NULL, MKDEV(dev_major, 0), dev, DEVNAME);
printk(KERN_INFO DRVNAME ": gpio device registered with major %d\n", dev_major);
if (dev->num_resources != 1)
{
printk(KERN_ERR DRVNAME ": device may only have 1 resource\n");
result = -ENODEV;
goto out;
}
gpio_access_mask = dev->resource[0].start;
printk(KERN_INFO DRVNAME ": gpio platform device registered with access mask %08X\n", gpio_access_mask);
out:
return result;
}
static int
gpio_remove(struct platform_device *dev)
{
unregister_chrdev(dev_major, DEVNAME);
return 0;
}
static struct
platform_driver gpio_driver = {
.probe = gpio_probe,
.remove = gpio_remove,
.driver = {
.name = "GPIODEV",
.owner = THIS_MODULE,
},
};
static int __init
gpio_mod_init(void)
{
int ret = platform_driver_register(&gpio_driver);
if (ret)
printk(KERN_INFO DRVNAME ": Error registering platfom driver!");
return ret;
}
static void __exit
gpio_mod_exit(void)
{
platform_driver_unregister(&gpio_driver);
}
module_init (gpio_mod_init);
module_exit (gpio_mod_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("John Crispin / OpenWrt");
MODULE_DESCRIPTION("Character device for for generic gpio api");

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/*
* Driver for buttons on GPIO lines not capable of generating interrupts
*
* Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org>
*
* This file was based on: /drivers/input/misc/cobalt_btns.c
* Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
*
* also was based on: /drivers/input/keyboard/gpio_keys.c
* Copyright 2005 Phil Blundell
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/input-polldev.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/gpio_buttons.h>
#include <asm/gpio.h>
#define DRV_NAME "gpio-buttons"
#define DRV_VERSION "0.1.1"
#define PFX DRV_NAME ": "
struct gpio_buttons_dev {
struct input_polled_dev *poll_dev;
struct gpio_buttons_platform_data *pdata;
};
static void gpio_buttons_poll(struct input_polled_dev *dev)
{
struct gpio_buttons_dev *bdev = dev->private;
struct gpio_buttons_platform_data *pdata = bdev->pdata;
struct input_dev *input = dev->input;
int i;
for (i = 0; i < bdev->pdata->nbuttons; i++) {
struct gpio_button *button = &pdata->buttons[i];
unsigned int type = button->type ?: EV_KEY;
int state;
state = gpio_get_value(button->gpio) ? 1 : 0;
state ^= button->active_low;
if (state) {
button->count++;
} else {
if (button->count >= button->threshold) {
input_event(input, type, button->code, 1);
input_sync(input);
}
button->count = 0;
}
if (button->count == button->threshold) {
input_event(input, type, button->code, 0);
input_sync(input);
}
}
}
static int __devinit gpio_buttons_probe(struct platform_device *pdev)
{
struct gpio_buttons_platform_data *pdata = pdev->dev.platform_data;
struct gpio_buttons_dev *bdev;
struct input_polled_dev *poll_dev;
struct input_dev *input;
int error, i;
if (!pdata)
return -ENXIO;
bdev = kzalloc(sizeof(*bdev), GFP_KERNEL);
if (!bdev) {
printk(KERN_ERR DRV_NAME "no memory for device\n");
return -ENOMEM;
}
poll_dev = input_allocate_polled_device();
if (!poll_dev) {
printk(KERN_ERR DRV_NAME "no memory for polled device\n");
error = -ENOMEM;
goto err_free_bdev;
}
poll_dev->private = bdev;
poll_dev->poll = gpio_buttons_poll;
poll_dev->poll_interval = pdata->poll_interval;
input = poll_dev->input;
input->evbit[0] = BIT(EV_KEY);
input->name = pdev->name;
input->phys = "gpio-buttons/input0";
input->dev.parent = &pdev->dev;
input->id.bustype = BUS_HOST;
input->id.vendor = 0x0001;
input->id.product = 0x0001;
input->id.version = 0x0100;
for (i = 0; i < pdata->nbuttons; i++) {
struct gpio_button *button = &pdata->buttons[i];
unsigned int gpio = button->gpio;
unsigned int type = button->type ?: EV_KEY;
error = gpio_request(gpio, button->desc ?
button->desc : DRV_NAME);
if (error) {
printk(KERN_ERR PFX "unable to claim gpio %u, "
"error %d\n", gpio, error);
goto err_free_gpio;
}
error = gpio_direction_input(gpio);
if (error) {
printk(KERN_ERR PFX "unable to set direction on "
"gpio %u, error %d\n", gpio, error);
goto err_free_gpio;
}
input_set_capability(input, type, button->code);
button->count = 0;
}
bdev->poll_dev = poll_dev;
bdev->pdata = pdata;
platform_set_drvdata(pdev, bdev);
error = input_register_polled_device(poll_dev);
if (error) {
printk(KERN_ERR PFX "unable to register polled device, "
"error %d\n", error);
goto err_free_gpio;
}
return 0;
err_free_gpio:
for (i = i - 1; i >= 0; i--)
gpio_free(pdata->buttons[i].gpio);
input_free_polled_device(poll_dev);
err_free_bdev:
kfree(bdev);
platform_set_drvdata(pdev, NULL);
return error;
}
static int __devexit gpio_buttons_remove(struct platform_device *pdev)
{
struct gpio_buttons_dev *bdev = platform_get_drvdata(pdev);
struct gpio_buttons_platform_data *pdata = bdev->pdata;
int i;
input_unregister_polled_device(bdev->poll_dev);
for (i = 0; i < pdata->nbuttons; i++)
gpio_free(pdata->buttons[i].gpio);
input_free_polled_device(bdev->poll_dev);
kfree(bdev);
platform_set_drvdata(pdev, NULL);
return 0;
}
static struct platform_driver gpio_buttons_driver = {
.probe = gpio_buttons_probe,
.remove = __devexit_p(gpio_buttons_remove),
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
},
};
static int __init gpio_buttons_init(void)
{
printk(KERN_INFO DRV_NAME " driver version " DRV_VERSION "\n");
return platform_driver_register(&gpio_buttons_driver);
}
static void __exit gpio_buttons_exit(void)
{
platform_driver_unregister(&gpio_buttons_driver);
}
module_init(gpio_buttons_init);
module_exit(gpio_buttons_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
MODULE_VERSION(DRV_VERSION);
MODULE_DESCRIPTION("Polled buttons driver for CPU GPIOs");

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/*
* LEDs driver for PCEngines ALIX 2/3 series
*
* Copyright (C) 2007 Petr Liebman
*
* Based on leds-wrap.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/err.h>
#include <asm/io.h>
#define DRVNAME "alix-led"
#define ALIX_LED1_PORT (0x6100)
#define ALIX_LED1_ON (1<<22)
#define ALIX_LED1_OFF (1<<6)
#define ALIX_LED2_PORT (0x6180)
#define ALIX_LED2_ON (1<<25)
#define ALIX_LED2_OFF (1<<9)
#define ALIX_LED3_PORT (0x6180)
#define ALIX_LED3_ON (1<<27)
#define ALIX_LED3_OFF (1<<11)
static struct platform_device *pdev;
static void alix_led_set_1(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
outl(ALIX_LED1_ON, ALIX_LED1_PORT);
else
outl(ALIX_LED1_OFF, ALIX_LED1_PORT);
}
static void alix_led_set_2(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
outl(ALIX_LED2_ON, ALIX_LED2_PORT);
else
outl(ALIX_LED2_OFF, ALIX_LED2_PORT);
}
static void alix_led_set_3(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
outl(ALIX_LED3_ON, ALIX_LED3_PORT);
else
outl(ALIX_LED3_OFF, ALIX_LED3_PORT);
}
static struct led_classdev alix_led_1 = {
.name = "alix:1",
.brightness_set = alix_led_set_1,
};
static struct led_classdev alix_led_2 = {
.name = "alix:2",
.brightness_set = alix_led_set_2,
};
static struct led_classdev alix_led_3 = {
.name = "alix:3",
.brightness_set = alix_led_set_3,
};
#ifdef CONFIG_PM
static int alix_led_suspend(struct platform_device *dev,
pm_message_t state)
{
led_classdev_suspend(&alix_led_1);
led_classdev_suspend(&alix_led_2);
led_classdev_suspend(&alix_led_3);
return 0;
}
static int alix_led_resume(struct platform_device *dev)
{
led_classdev_resume(&alix_led_1);
led_classdev_resume(&alix_led_2);
led_classdev_resume(&alix_led_3);
return 0;
}
#else
#define alix_led_suspend NULL
#define alix_led_resume NULL
#endif
static int alix_led_probe(struct platform_device *pdev)
{
int ret;
ret = led_classdev_register(&pdev->dev, &alix_led_1);
if (ret >= 0)
{
ret = led_classdev_register(&pdev->dev, &alix_led_2);
if (ret >= 0)
{
ret = led_classdev_register(&pdev->dev, &alix_led_3);
if (ret < 0)
led_classdev_unregister(&alix_led_2);
}
if (ret < 0)
led_classdev_unregister(&alix_led_1);
}
return ret;
}
static int alix_led_remove(struct platform_device *pdev)
{
led_classdev_unregister(&alix_led_1);
led_classdev_unregister(&alix_led_2);
led_classdev_unregister(&alix_led_3);
return 0;
}
static struct platform_driver alix_led_driver = {
.probe = alix_led_probe,
.remove = alix_led_remove,
.suspend = alix_led_suspend,
.resume = alix_led_resume,
.driver = {
.name = DRVNAME,
.owner = THIS_MODULE,
},
};
static int __init alix_led_init(void)
{
int ret;
ret = platform_driver_register(&alix_led_driver);
if (ret < 0)
goto out;
pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
platform_driver_unregister(&alix_led_driver);
goto out;
}
out:
return ret;
}
static void __exit alix_led_exit(void)
{
platform_device_unregister(pdev);
platform_driver_unregister(&alix_led_driver);
}
module_init(alix_led_init);
module_exit(alix_led_exit);
MODULE_AUTHOR("Petr Liebman");
MODULE_DESCRIPTION("PCEngines ALIX LED driver");
MODULE_LICENSE("GPL");

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/*
* LED Morse Trigger
*
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
*
* This file was based on: drivers/led/ledtrig-timer.c
* Copyright 2005-2006 Openedhand Ltd.
* Author: Richard Purdie <rpurdie@openedhand.com>
*
* also based on the patch '[PATCH] 2.5.59 morse code panics' posted
* in the LKML by Tomas Szepe at Thu, 30 Jan 2003
* Copyright (C) 2002 Andrew Rodland <arodland@noln.com>
* Copyright (C) 2003 Tomas Szepe <szepe@pinerecords.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
*/
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/jiffies.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/sysdev.h>
#include <linux/timer.h>
#include <linux/ctype.h>
#include <linux/leds.h>
#include "leds.h"
#define MORSE_DELAY_BASE (HZ/2)
#define MORSE_STATE_BLINK_START 0
#define MORSE_STATE_BLINK_STOP 1
#define MORSE_DIT_LEN 1
#define MORSE_DAH_LEN 3
#define MORSE_SPACE_LEN 7
struct morse_trig_data {
unsigned long delay;
char *msg;
unsigned char morse;
unsigned char state;
char *msgpos;
struct timer_list timer;
};
const unsigned char morsetable[] = {
0122, 0, 0310, 0, 0, 0163, /* "#$%&' */
055, 0155, 0, 0, 0163, 0141, 0152, 0051, /* ()*+,-./ */
077, 076, 074, 070, 060, 040, 041, 043, 047, 057, /* 0-9 */
0107, 0125, 0, 0061, 0, 0114, 0, /* :;<=>?@ */
006, 021, 025, 011, 002, 024, 013, 020, 004, /* A-I */
036, 015, 022, 007, 005, 017, 026, 033, 012, /* J-R */
010, 003, 014, 030, 016, 031, 035, 023, /* S-Z */
0, 0, 0, 0, 0154 /* [\]^_ */
};
static inline unsigned char tomorse(char c) {
if (c >= 'a' && c <= 'z')
c = c - 'a' + 'A';
if (c >= '"' && c <= '_') {
return morsetable[c - '"'];
} else
return 0;
}
static inline unsigned long dit_len(struct morse_trig_data *morse_data)
{
return MORSE_DIT_LEN*morse_data->delay;
}
static inline unsigned long dah_len(struct morse_trig_data *morse_data)
{
return MORSE_DAH_LEN*morse_data->delay;
}
static inline unsigned long space_len(struct morse_trig_data *morse_data)
{
return MORSE_SPACE_LEN*morse_data->delay;
}
static void morse_timer_function(unsigned long data)
{
struct led_classdev *led_cdev = (struct led_classdev *)data;
struct morse_trig_data *morse_data = led_cdev->trigger_data;
unsigned long brightness = LED_OFF;
unsigned long delay = 0;
if (!morse_data->msg)
goto set_led;
switch (morse_data->state) {
case MORSE_STATE_BLINK_START:
/* Starting a new blink. We have a valid code in morse. */
delay = (morse_data->morse & 001) ? dah_len(morse_data):
dit_len(morse_data);
brightness = LED_FULL;
morse_data->state = MORSE_STATE_BLINK_STOP;
morse_data->morse >>= 1;
break;
case MORSE_STATE_BLINK_STOP:
/* Coming off of a blink. */
morse_data->state = MORSE_STATE_BLINK_START;
if (morse_data->morse > 1) {
/* Not done yet, just a one-dit pause. */
delay = dit_len(morse_data);
break;
}
/* Get a new char, figure out how much space. */
/* First time through */
if (!morse_data->msgpos)
morse_data->msgpos = (char *)morse_data->msg;
if (!*morse_data->msgpos) {
/* Repeating */
morse_data->msgpos = (char *)morse_data->msg;
delay = space_len(morse_data);
} else {
/* Inter-letter space */
delay = dah_len(morse_data);
}
if (!(morse_data->morse = tomorse(*morse_data->msgpos))) {
delay = space_len(morse_data);
/* And get us back here */
morse_data->state = MORSE_STATE_BLINK_STOP;
}
morse_data->msgpos++;
break;
}
mod_timer(&morse_data->timer, jiffies + msecs_to_jiffies(delay));
set_led:
led_set_brightness(led_cdev, brightness);
}
static ssize_t _morse_delay_show(struct led_classdev *led_cdev, char *buf)
{
struct morse_trig_data *morse_data = led_cdev->trigger_data;
sprintf(buf, "%lu\n", morse_data->delay);
return strlen(buf) + 1;
}
static ssize_t _morse_delay_store(struct led_classdev *led_cdev,
const char *buf, size_t size)
{
struct morse_trig_data *morse_data = led_cdev->trigger_data;
char *after;
unsigned long state = simple_strtoul(buf, &after, 10);
size_t count = after - buf;
int ret = -EINVAL;
if (*after && isspace(*after))
count++;
if (count == size) {
morse_data->delay = state;
mod_timer(&morse_data->timer, jiffies + 1);
ret = count;
}
return ret;
}
static ssize_t _morse_msg_show(struct led_classdev *led_cdev, char *buf)
{
struct morse_trig_data *morse_data = led_cdev->trigger_data;
if (!morse_data->msg)
sprintf(buf, "<none>\n");
else
sprintf(buf, "%s\n", morse_data->msg);
return strlen(buf) + 1;
}
static ssize_t _morse_msg_store(struct led_classdev *led_cdev,
const char *buf, size_t size)
{
struct morse_trig_data *morse_data = led_cdev->trigger_data;
char *m;
m = kmalloc(size, GFP_KERNEL);
if (!m)
return -ENOMEM;
memcpy(m,buf,size);
m[size]='\0';
if (morse_data->msg)
kfree(morse_data->msg);
morse_data->msg = m;
morse_data->msgpos = NULL;
morse_data->state = MORSE_STATE_BLINK_STOP;
mod_timer(&morse_data->timer, jiffies + 1);
return size;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23)
static ssize_t morse_delay_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
return _morse_delay_show(led_cdev, buf);
}
static ssize_t morse_delay_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
return _morse_delay_store(led_cdev, buf, size);
}
static ssize_t morse_msg_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
return _morse_msg_show(led_cdev, buf);
}
static ssize_t morse_msg_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
return _morse_msg_store(led_cdev, buf, size);
}
static DEVICE_ATTR(delay, 0644, morse_delay_show, morse_delay_store);
static DEVICE_ATTR(message, 0644, morse_msg_show, morse_msg_store);
#define led_device_create_file(leddev, attr) \
device_create_file(leddev->dev, &dev_attr_ ## attr)
#define led_device_remove_file(leddev, attr) \
device_remove_file(leddev->dev, &dev_attr_ ## attr)
#else
static ssize_t morse_delay_show(struct class_device *dev, char *buf)
{
struct led_classdev *led_cdev = class_get_devdata(dev);
return _morse_delay_show(led_cdev, buf);
}
static ssize_t morse_delay_store(struct class_device *dev, const char *buf,
size_t size)
{
struct led_classdev *led_cdev = class_get_devdata(dev);
return _morse_delay_store(led_cdev, buf, size);
}
static ssize_t morse_msg_show(struct class_device *dev, char *buf)
{
struct led_classdev *led_cdev = class_get_devdata(dev);
return _morse_msg_show(led_cdev, buf);
}
static ssize_t morse_msg_store(struct class_device *dev, const char *buf,
size_t size)
{
struct led_classdev *led_cdev = class_get_devdata(dev);
return _morse_msg_store(led_cdev, buf, size);
}
static CLASS_DEVICE_ATTR(delay, 0644, morse_delay_show, morse_delay_store);
static CLASS_DEVICE_ATTR(message, 0644, morse_msg_show, morse_msg_store);
#define led_device_create_file(leddev, attr) \
class_device_create_file(leddev->class_dev, &class_device_attr_ ## attr)
#define led_device_remove_file(leddev, attr) \
class_device_remove_file(leddev->class_dev, &class_device_attr_ ## attr)
#endif
static void morse_trig_activate(struct led_classdev *led_cdev)
{
struct morse_trig_data *morse_data;
int rc;
morse_data = kzalloc(sizeof(*morse_data), GFP_KERNEL);
if (!morse_data)
return;
morse_data->delay = MORSE_DELAY_BASE;
init_timer(&morse_data->timer);
morse_data->timer.function = morse_timer_function;
morse_data->timer.data = (unsigned long)led_cdev;
rc = led_device_create_file(led_cdev, delay);
if (rc) goto err;
rc = led_device_create_file(led_cdev, message);
if (rc) goto err_delay;
led_cdev->trigger_data = morse_data;
return;
err_delay:
led_device_remove_file(led_cdev, delay);
err:
kfree(morse_data);
}
static void morse_trig_deactivate(struct led_classdev *led_cdev)
{
struct morse_trig_data *morse_data = led_cdev->trigger_data;
if (!morse_data)
return;
led_device_remove_file(led_cdev, message);
led_device_remove_file(led_cdev, delay);
del_timer_sync(&morse_data->timer);
if (morse_data->msg)
kfree(morse_data->msg);
kfree(morse_data);
}
static struct led_trigger morse_led_trigger = {
.name = "morse",
.activate = morse_trig_activate,
.deactivate = morse_trig_deactivate,
};
static int __init morse_trig_init(void)
{
return led_trigger_register(&morse_led_trigger);
}
static void __exit morse_trig_exit(void)
{
led_trigger_unregister(&morse_led_trigger);
}
module_init(morse_trig_init);
module_exit(morse_trig_exit);
MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
MODULE_DESCRIPTION("Morse LED trigger");
MODULE_LICENSE("GPL");

View file

@ -0,0 +1,454 @@
/*
* LED Kernel Netdev Trigger
*
* Toggles the LED to reflect the link and traffic state of a named net device
*
* Copyright 2007 Oliver Jowett <oliver@opencloud.com>
*
* Derived from ledtrig-timer.c which is:
* Copyright 2005-2006 Openedhand Ltd.
* Author: Richard Purdie <rpurdie@openedhand.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/sysdev.h>
#include <linux/netdevice.h>
#include <linux/timer.h>
#include <linux/ctype.h>
#include <linux/leds.h>
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
#include <net/net_namespace.h>
#endif
#include "leds.h"
/*
* Configurable sysfs attributes:
*
* device_name - network device name to monitor
*
* interval - duration of LED blink, in milliseconds
*
* mode - either "none" (LED is off) or a space separated list of one or more of:
* link: LED's normal state reflects whether the link is up (has carrier) or not
* tx: LED blinks on transmitted data
* rx: LED blinks on receive data
*
* Some suggestions:
*
* Simple link status LED:
* $ echo netdev >someled/trigger
* $ echo eth0 >someled/device_name
* $ echo link >someled/mode
*
* Ethernet-style link/activity LED:
* $ echo netdev >someled/trigger
* $ echo eth0 >someled/device_name
* $ echo "link tx rx" >someled/mode
*
* Modem-style tx/rx LEDs:
* $ echo netdev >led1/trigger
* $ echo ppp0 >led1/device_name
* $ echo tx >led1/mode
* $ echo netdev >led2/trigger
* $ echo ppp0 >led2/device_name
* $ echo rx >led2/mode
*
*/
#define MODE_LINK 1
#define MODE_TX 2
#define MODE_RX 4
struct led_netdev_data {
rwlock_t lock;
struct timer_list timer;
struct notifier_block notifier;
struct led_classdev *led_cdev;
struct net_device *net_dev;
char device_name[IFNAMSIZ];
unsigned interval;
unsigned mode;
unsigned link_up;
unsigned last_activity;
};
static void set_baseline_state(struct led_netdev_data *trigger_data)
{
if ((trigger_data->mode & MODE_LINK) != 0 && trigger_data->link_up)
led_set_brightness(trigger_data->led_cdev, LED_FULL);
else
led_set_brightness(trigger_data->led_cdev, LED_OFF);
if ((trigger_data->mode & (MODE_TX | MODE_RX)) != 0 && trigger_data->link_up)
mod_timer(&trigger_data->timer, jiffies + trigger_data->interval);
else
del_timer(&trigger_data->timer);
}
static ssize_t led_device_name_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct led_netdev_data *trigger_data = led_cdev->trigger_data;
read_lock(&trigger_data->lock);
sprintf(buf, "%s\n", trigger_data->device_name);
read_unlock(&trigger_data->lock);
return strlen(buf) + 1;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)
extern struct net init_net;
#endif
static ssize_t led_device_name_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct led_netdev_data *trigger_data = led_cdev->trigger_data;
if (size < 0 || size >= IFNAMSIZ)
return -EINVAL;
write_lock(&trigger_data->lock);
strcpy(trigger_data->device_name, buf);
if (size > 0 && trigger_data->device_name[size-1] == '\n')
trigger_data->device_name[size-1] = 0;
if (trigger_data->device_name[0] != 0) {
/* check for existing device to update from */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
trigger_data->net_dev = dev_get_by_name(&init_net, trigger_data->device_name);
#else
trigger_data->net_dev = dev_get_by_name(trigger_data->device_name);
#endif
if (trigger_data->net_dev != NULL)
trigger_data->link_up = (dev_get_flags(trigger_data->net_dev) & IFF_LOWER_UP) != 0;
set_baseline_state(trigger_data); /* updates LEDs, may start timers */
}
write_unlock(&trigger_data->lock);
return size;
}
static DEVICE_ATTR(device_name, 0644, led_device_name_show, led_device_name_store);
static ssize_t led_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct led_netdev_data *trigger_data = led_cdev->trigger_data;
read_lock(&trigger_data->lock);
if (trigger_data->mode == 0) {
strcpy(buf, "none\n");
} else {
if (trigger_data->mode & MODE_LINK)
strcat(buf, "link ");
if (trigger_data->mode & MODE_TX)
strcat(buf, "tx ");
if (trigger_data->mode & MODE_RX)
strcat(buf, "rx ");
strcat(buf, "\n");
}
read_unlock(&trigger_data->lock);
return strlen(buf)+1;
}
static ssize_t led_mode_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct led_netdev_data *trigger_data = led_cdev->trigger_data;
char copybuf[1024];
int new_mode = -1;
char *p, *token;
/* take a copy since we don't want to trash the inbound buffer when using strsep */
strncpy(copybuf, buf, sizeof(copybuf));
copybuf[1023] = 0;
p = copybuf;
while ((token = strsep(&p, " \t\n")) != NULL) {
if (!*token)
continue;
if (new_mode == -1)
new_mode = 0;
if (!strcmp(token, "none"))
new_mode = 0;
else if (!strcmp(token, "tx"))
new_mode |= MODE_TX;
else if (!strcmp(token, "rx"))
new_mode |= MODE_RX;
else if (!strcmp(token, "link"))
new_mode |= MODE_LINK;
else
return -EINVAL;
}
if (new_mode == -1)
return -EINVAL;
write_lock(&trigger_data->lock);
trigger_data->mode = new_mode;
set_baseline_state(trigger_data);
write_unlock(&trigger_data->lock);
return size;
}
static DEVICE_ATTR(mode, 0644, led_mode_show, led_mode_store);
static ssize_t led_interval_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct led_netdev_data *trigger_data = led_cdev->trigger_data;
read_lock(&trigger_data->lock);
sprintf(buf, "%u\n", jiffies_to_msecs(trigger_data->interval));
read_unlock(&trigger_data->lock);
return strlen(buf) + 1;
}
static ssize_t led_interval_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct led_netdev_data *trigger_data = led_cdev->trigger_data;
int ret = -EINVAL;
char *after;
unsigned long value = simple_strtoul(buf, &after, 10);
size_t count = after - buf;
if (*after && isspace(*after))
count++;
/* impose some basic bounds on the timer interval */
if (count == size && value >= 5 && value <= 10000) {
write_lock(&trigger_data->lock);
trigger_data->interval = msecs_to_jiffies(value);
set_baseline_state(trigger_data); // resets timer
write_unlock(&trigger_data->lock);
ret = count;
}
return ret;
}
static DEVICE_ATTR(interval, 0644, led_interval_show, led_interval_store);
static int netdev_trig_notify(struct notifier_block *nb,
unsigned long evt,
void *dv)
{
struct net_device *dev = dv;
struct led_netdev_data *trigger_data = container_of(nb, struct led_netdev_data, notifier);
if (evt != NETDEV_UP && evt != NETDEV_DOWN && evt != NETDEV_CHANGE && evt != NETDEV_REGISTER && evt != NETDEV_UNREGISTER)
return NOTIFY_DONE;
write_lock(&trigger_data->lock);
if (strcmp(dev->name, trigger_data->device_name))
goto done;
if (evt == NETDEV_REGISTER) {
if (trigger_data->net_dev != NULL)
dev_put(trigger_data->net_dev);
dev_hold(dev);
trigger_data->net_dev = dev;
trigger_data->link_up = 0;
goto done;
}
if (evt == NETDEV_UNREGISTER && trigger_data->net_dev != NULL) {
dev_put(trigger_data->net_dev);
trigger_data->net_dev = NULL;
goto done;
}
/* UP / DOWN / CHANGE */
trigger_data->link_up = (evt != NETDEV_DOWN && netif_carrier_ok(dev));
set_baseline_state(trigger_data);
done:
write_unlock(&trigger_data->lock);
return NOTIFY_DONE;
}
/* here's the real work! */
static void netdev_trig_timer(unsigned long arg)
{
struct led_netdev_data *trigger_data = (struct led_netdev_data *)arg;
struct net_device_stats *dev_stats;
unsigned new_activity;
write_lock(&trigger_data->lock);
if (!trigger_data->link_up || !trigger_data->net_dev || (trigger_data->mode & (MODE_TX | MODE_RX)) == 0) {
/* we don't need to do timer work, just reflect link state. */
led_set_brightness(trigger_data->led_cdev, ((trigger_data->mode & MODE_LINK) != 0 && trigger_data->link_up) ? LED_FULL : LED_OFF);
goto no_restart;
}
#ifdef CONFIG_COMPAT_NET_DEV_OPS
dev_stats = trigger_data->net_dev->get_stats(trigger_data->net_dev);
#else
dev_stats = trigger_data->net_dev->netdev_ops->ndo_get_stats(trigger_data->net_dev);
#endif
new_activity =
((trigger_data->mode & MODE_TX) ? dev_stats->tx_packets : 0) +
((trigger_data->mode & MODE_RX) ? dev_stats->rx_packets : 0);
if (trigger_data->mode & MODE_LINK) {
/* base state is ON (link present) */
/* if there's no link, we don't get this far and the LED is off */
/* OFF -> ON always */
/* ON -> OFF on activity */
if (trigger_data->led_cdev->brightness == LED_OFF) {
led_set_brightness(trigger_data->led_cdev, LED_FULL);
} else if (trigger_data->last_activity != new_activity) {
led_set_brightness(trigger_data->led_cdev, LED_OFF);
}
} else {
/* base state is OFF */
/* ON -> OFF always */
/* OFF -> ON on activity */
if (trigger_data->led_cdev->brightness == LED_FULL) {
led_set_brightness(trigger_data->led_cdev, LED_OFF);
} else if (trigger_data->last_activity != new_activity) {
led_set_brightness(trigger_data->led_cdev, LED_FULL);
}
}
trigger_data->last_activity = new_activity;
mod_timer(&trigger_data->timer, jiffies + trigger_data->interval);
no_restart:
write_unlock(&trigger_data->lock);
}
static void netdev_trig_activate(struct led_classdev *led_cdev)
{
struct led_netdev_data *trigger_data;
int rc;
trigger_data = kzalloc(sizeof(struct led_netdev_data), GFP_KERNEL);
if (!trigger_data)
return;
rwlock_init(&trigger_data->lock);
trigger_data->notifier.notifier_call = netdev_trig_notify;
trigger_data->notifier.priority = 10;
setup_timer(&trigger_data->timer, netdev_trig_timer, (unsigned long) trigger_data);
trigger_data->led_cdev = led_cdev;
trigger_data->net_dev = NULL;
trigger_data->device_name[0] = 0;
trigger_data->mode = 0;
trigger_data->interval = msecs_to_jiffies(50);
trigger_data->link_up = 0;
trigger_data->last_activity = 0;
led_cdev->trigger_data = trigger_data;
rc = device_create_file(led_cdev->dev, &dev_attr_device_name);
if (rc)
goto err_out;
rc = device_create_file(led_cdev->dev, &dev_attr_mode);
if (rc)
goto err_out_device_name;
rc = device_create_file(led_cdev->dev, &dev_attr_interval);
if (rc)
goto err_out_mode;
register_netdevice_notifier(&trigger_data->notifier);
return;
err_out_mode:
device_remove_file(led_cdev->dev, &dev_attr_mode);
err_out_device_name:
device_remove_file(led_cdev->dev, &dev_attr_device_name);
err_out:
led_cdev->trigger_data = NULL;
kfree(trigger_data);
}
static void netdev_trig_deactivate(struct led_classdev *led_cdev)
{
struct led_netdev_data *trigger_data = led_cdev->trigger_data;
if (trigger_data) {
unregister_netdevice_notifier(&trigger_data->notifier);
device_remove_file(led_cdev->dev, &dev_attr_device_name);
device_remove_file(led_cdev->dev, &dev_attr_mode);
device_remove_file(led_cdev->dev, &dev_attr_interval);
write_lock(&trigger_data->lock);
if (trigger_data->net_dev) {
dev_put(trigger_data->net_dev);
trigger_data->net_dev = NULL;
}
write_unlock(&trigger_data->lock);
del_timer_sync(&trigger_data->timer);
kfree(trigger_data);
}
}
static struct led_trigger netdev_led_trigger = {
.name = "netdev",
.activate = netdev_trig_activate,
.deactivate = netdev_trig_deactivate,
};
static int __init netdev_trig_init(void)
{
return led_trigger_register(&netdev_led_trigger);
}
static void __exit netdev_trig_exit(void)
{
led_trigger_unregister(&netdev_led_trigger);
}
module_init(netdev_trig_init);
module_exit(netdev_trig_exit);
MODULE_AUTHOR("Oliver Jowett <oliver@opencloud.com>");
MODULE_DESCRIPTION("Netdev LED trigger");
MODULE_LICENSE("GPL");

View file

@ -0,0 +1,651 @@
/*
* ar8216.c: AR8216 switch driver
*
* Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
*
* 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.
*/
#include <linux/if.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/if_ether.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/netlink.h>
#include <linux/bitops.h>
#include <net/genetlink.h>
#include <linux/switch.h>
#include <linux/delay.h>
#include <linux/phy.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include "ar8216.h"
struct ar8216_priv {
struct switch_dev dev;
struct phy_device *phy;
u32 (*read)(struct ar8216_priv *priv, int reg);
void (*write)(struct ar8216_priv *priv, int reg, u32 val);
const struct net_device_ops *ndo_old;
struct net_device_ops ndo;
/* all fields below are cleared on reset */
bool vlan;
u8 vlan_id[AR8216_NUM_VLANS];
u8 vlan_table[AR8216_NUM_VLANS];
u8 vlan_tagged;
u16 pvid[AR8216_NUM_PORTS];
};
static struct switch_dev athdev;
#define to_ar8216(_dev) container_of(_dev, struct ar8216_priv, dev)
static inline void
split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page)
{
regaddr >>= 1;
*r1 = regaddr & 0x1e;
regaddr >>= 5;
*r2 = regaddr & 0x7;
regaddr >>= 3;
*page = regaddr & 0x1ff;
}
static u32
ar8216_mii_read(struct ar8216_priv *priv, int reg)
{
struct phy_device *phy = priv->phy;
u16 r1, r2, page;
u16 lo, hi;
split_addr((u32) reg, &r1, &r2, &page);
phy->bus->write(phy->bus, 0x18, 0, page);
msleep(1); /* wait for the page switch to propagate */
lo = phy->bus->read(phy->bus, 0x10 | r2, r1);
hi = phy->bus->read(phy->bus, 0x10 | r2, r1 + 1);
return (hi << 16) | lo;
}
static void
ar8216_mii_write(struct ar8216_priv *priv, int reg, u32 val)
{
struct phy_device *phy = priv->phy;
u16 r1, r2, r3;
u16 lo, hi;
split_addr((u32) reg, &r1, &r2, &r3);
phy->bus->write(phy->bus, 0x18, 0, r3);
msleep(1); /* wait for the page switch to propagate */
lo = val & 0xffff;
hi = (u16) (val >> 16);
phy->bus->write(phy->bus, 0x10 | r2, r1 + 1, hi);
phy->bus->write(phy->bus, 0x10 | r2, r1, lo);
}
static u32
ar8216_rmw(struct ar8216_priv *priv, int reg, u32 mask, u32 val)
{
u32 v;
v = priv->read(priv, reg);
v &= ~mask;
v |= val;
priv->write(priv, reg, v);
return v;
}
static int
ar8216_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
struct switch_val *val)
{
struct ar8216_priv *priv = to_ar8216(dev);
priv->vlan = !!val->value.i;
return 0;
}
static int
ar8216_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
struct switch_val *val)
{
struct ar8216_priv *priv = to_ar8216(dev);
val->value.i = priv->vlan;
return 0;
}
static int
ar8216_set_pvid(struct switch_dev *dev, int port, int vlan)
{
struct ar8216_priv *priv = to_ar8216(dev);
priv->pvid[port] = vlan;
return 0;
}
static int
ar8216_get_pvid(struct switch_dev *dev, int port, int *vlan)
{
struct ar8216_priv *priv = to_ar8216(dev);
*vlan = priv->pvid[port];
return 0;
}
static int
ar8216_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
struct switch_val *val)
{
struct ar8216_priv *priv = to_ar8216(dev);
priv->vlan_id[val->port_vlan] = val->value.i;
return 0;
}
static int
ar8216_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
struct switch_val *val)
{
struct ar8216_priv *priv = to_ar8216(dev);
val->value.i = priv->vlan_id[val->port_vlan];
return 0;
}
static int
ar8216_mangle_tx(struct sk_buff *skb, struct net_device *dev)
{
struct ar8216_priv *priv = dev->phy_ptr;
unsigned char *buf;
if (unlikely(!priv))
goto error;
if (!priv->vlan)
goto send;
if (unlikely(skb_headroom(skb) < 2)) {
if (pskb_expand_head(skb, 2, 0, GFP_ATOMIC) < 0)
goto error;
}
buf = skb_push(skb, 2);
buf[0] = 0x10;
buf[1] = 0x80;
send:
return priv->ndo_old->ndo_start_xmit(skb, dev);
error:
dev_kfree_skb_any(skb);
return 0;
}
static int
ar8216_mangle_rx(struct sk_buff *skb, int napi)
{
struct ar8216_priv *priv;
struct net_device *dev;
unsigned char *buf;
int port, vlan;
dev = skb->dev;
if (!dev)
goto error;
priv = dev->phy_ptr;
if (!priv)
goto error;
/* don't strip the header if vlan mode is disabled */
if (!priv->vlan)
goto recv;
/* strip header, get vlan id */
buf = skb->data;
skb_pull(skb, 2);
/* check for vlan header presence */
if ((buf[12 + 2] != 0x81) || (buf[13 + 2] != 0x00))
goto recv;
port = buf[0] & 0xf;
/* no need to fix up packets coming from a tagged source */
if (priv->vlan_tagged & (1 << port))
goto recv;
/* lookup port vid from local table, the switch passes an invalid vlan id */
vlan = priv->pvid[port];
buf[14 + 2] &= 0xf0;
buf[14 + 2] |= vlan >> 8;
buf[15 + 2] = vlan & 0xff;
recv:
skb->protocol = eth_type_trans(skb, skb->dev);
if (napi)
return netif_receive_skb(skb);
else
return netif_rx(skb);
error:
/* no vlan? eat the packet! */
dev_kfree_skb_any(skb);
return 0;
}
static int
ar8216_netif_rx(struct sk_buff *skb)
{
return ar8216_mangle_rx(skb, 0);
}
static int
ar8216_netif_receive_skb(struct sk_buff *skb)
{
return ar8216_mangle_rx(skb, 1);
}
static struct switch_attr ar8216_globals[] = {
{
.type = SWITCH_TYPE_INT,
.name = "enable_vlan",
.description = "Enable VLAN mode",
.set = ar8216_set_vlan,
.get = ar8216_get_vlan,
.max = 1
},
};
static struct switch_attr ar8216_port[] = {
};
static struct switch_attr ar8216_vlan[] = {
{
.type = SWITCH_TYPE_INT,
.name = "pvid",
.description = "VLAN ID",
.set = ar8216_set_vid,
.get = ar8216_get_vid,
.max = 4095,
},
};
static int
ar8216_get_ports(struct switch_dev *dev, struct switch_val *val)
{
struct ar8216_priv *priv = to_ar8216(dev);
u8 ports = priv->vlan_table[val->port_vlan];
int i;
val->len = 0;
for (i = 0; i < AR8216_NUM_PORTS; i++) {
struct switch_port *p;
if (!(ports & (1 << i)))
continue;
p = &val->value.ports[val->len++];
p->id = i;
if (priv->vlan_tagged & (1 << i))
p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
else
p->flags = 0;
}
return 0;
}
static int
ar8216_set_ports(struct switch_dev *dev, struct switch_val *val)
{
struct ar8216_priv *priv = to_ar8216(dev);
u8 *vt = &priv->vlan_table[val->port_vlan];
int i, j;
*vt = 0;
for (i = 0; i < val->len; i++) {
struct switch_port *p = &val->value.ports[i];
if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED))
priv->vlan_tagged |= (1 << p->id);
else {
priv->vlan_tagged &= ~(1 << p->id);
priv->pvid[p->id] = val->port_vlan;
/* make sure that an untagged port does not
* appear in other vlans */
for (j = 0; j < AR8216_NUM_VLANS; j++) {
if (j == val->port_vlan)
continue;
priv->vlan_table[j] &= ~(1 << p->id);
}
}
*vt |= 1 << p->id;
}
return 0;
}
static int
ar8216_wait_bit(struct ar8216_priv *priv, int reg, u32 mask, u32 val)
{
int timeout = 20;
while ((priv->read(priv, reg) & mask) != val) {
if (timeout-- <= 0) {
printk(KERN_ERR "ar8216: timeout waiting for operation to complete\n");
return 1;
}
}
return 0;
}
static void
ar8216_vtu_op(struct ar8216_priv *priv, u32 op, u32 val)
{
if (ar8216_wait_bit(priv, AR8216_REG_VTU, AR8216_VTU_ACTIVE, 0))
return;
if ((op & AR8216_VTU_OP) == AR8216_VTU_OP_LOAD) {
val &= AR8216_VTUDATA_MEMBER;
val |= AR8216_VTUDATA_VALID;
priv->write(priv, AR8216_REG_VTU_DATA, val);
}
op |= AR8216_VTU_ACTIVE;
priv->write(priv, AR8216_REG_VTU, op);
}
static int
ar8216_hw_apply(struct switch_dev *dev)
{
struct ar8216_priv *priv = to_ar8216(dev);
u8 portmask[AR8216_NUM_PORTS];
int i, j;
/* flush all vlan translation unit entries */
ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0);
memset(portmask, 0, sizeof(portmask));
if (priv->vlan) {
/* calculate the port destination masks and load vlans
* into the vlan translation unit */
for (j = 0; j < AR8216_NUM_VLANS; j++) {
u8 vp = priv->vlan_table[j];
if (!vp)
continue;
for (i = 0; i < AR8216_NUM_PORTS; i++) {
u8 mask = (1 << i);
if (vp & mask)
portmask[i] |= vp & ~mask;
}
if (!priv->vlan_table[j])
continue;
ar8216_vtu_op(priv,
AR8216_VTU_OP_LOAD |
(priv->vlan_id[j] << AR8216_VTU_VID_S),
priv->vlan_table[j]);
}
} else {
/* vlan disabled:
* isolate all ports, but connect them to the cpu port */
for (i = 0; i < AR8216_NUM_PORTS; i++) {
if (i == AR8216_PORT_CPU)
continue;
portmask[i] = 1 << AR8216_PORT_CPU;
portmask[AR8216_PORT_CPU] |= (1 << i);
}
}
/* update the port destination mask registers and tag settings */
for (i = 0; i < AR8216_NUM_PORTS; i++) {
int egress, ingress;
int pvid;
if (priv->vlan) {
pvid = priv->vlan_id[priv->pvid[i]];
} else {
pvid = i;
}
if (priv->vlan && (priv->vlan_tagged & (1 << i))) {
egress = AR8216_OUT_ADD_VLAN;
} else {
egress = AR8216_OUT_STRIP_VLAN;
}
ingress = AR8216_IN_SECURE;
ar8216_rmw(priv, AR8216_REG_PORT_CTRL(i),
AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
AR8216_PORT_CTRL_LEARN |
(priv->vlan && i == AR8216_PORT_CPU ?
AR8216_PORT_CTRL_HEADER : 0) |
(egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
(AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
ar8216_rmw(priv, AR8216_REG_PORT_VLAN(i),
AR8216_PORT_VLAN_DEST_PORTS | AR8216_PORT_VLAN_MODE |
AR8216_PORT_VLAN_DEFAULT_ID,
(portmask[i] << AR8216_PORT_VLAN_DEST_PORTS_S) |
(ingress << AR8216_PORT_VLAN_MODE_S) |
(pvid << AR8216_PORT_VLAN_DEFAULT_ID_S));
}
return 0;
}
static int
ar8216_reset_switch(struct switch_dev *dev)
{
struct ar8216_priv *priv = to_ar8216(dev);
int i;
memset(&priv->vlan, 0, sizeof(struct ar8216_priv) -
offsetof(struct ar8216_priv, vlan));
for (i = 0; i < AR8216_NUM_VLANS; i++) {
priv->vlan_id[i] = i;
}
for (i = 0; i < AR8216_NUM_PORTS; i++) {
/* Enable port learning and tx */
priv->write(priv, AR8216_REG_PORT_CTRL(i),
AR8216_PORT_CTRL_LEARN |
(4 << AR8216_PORT_CTRL_STATE_S));
priv->write(priv, AR8216_REG_PORT_VLAN(i), 0);
/* Configure all PHYs */
if (i == AR8216_PORT_CPU) {
priv->write(priv, AR8216_REG_PORT_STATUS(i),
AR8216_PORT_STATUS_LINK_UP |
AR8216_PORT_STATUS_SPEED |
AR8216_PORT_STATUS_TXMAC |
AR8216_PORT_STATUS_RXMAC |
AR8216_PORT_STATUS_DUPLEX);
} else {
priv->write(priv, AR8216_REG_PORT_STATUS(i),
AR8216_PORT_STATUS_LINK_AUTO);
}
}
/* XXX: undocumented magic from atheros, required! */
priv->write(priv, 0x38, 0xc000050e);
ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
AR8216_GCTRL_MTU, 1518 + 8 + 2);
return ar8216_hw_apply(dev);
}
static int
ar8216_config_init(struct phy_device *pdev)
{
struct ar8216_priv *priv;
struct net_device *dev = pdev->attached_dev;
int ret;
printk("%s: AR8216 PHY driver attached.\n", pdev->attached_dev->name);
pdev->supported = ADVERTISED_100baseT_Full;
pdev->advertising = ADVERTISED_100baseT_Full;
priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
priv->phy = pdev;
priv->read = ar8216_mii_read;
priv->write = ar8216_mii_write;
memcpy(&priv->dev, &athdev, sizeof(struct switch_dev));
pdev->priv = priv;
if ((ret = register_switch(&priv->dev, pdev->attached_dev)) < 0) {
kfree(priv);
goto done;
}
ret = ar8216_reset_switch(&priv->dev);
if (ret)
goto done;
dev->phy_ptr = priv;
pdev->pkt_align = 2;
pdev->netif_receive_skb = ar8216_netif_receive_skb;
pdev->netif_rx = ar8216_netif_rx;
priv->ndo_old = dev->netdev_ops;
memcpy(&priv->ndo, priv->ndo_old, sizeof(struct net_device_ops));
priv->ndo.ndo_start_xmit = ar8216_mangle_tx;
dev->netdev_ops = &priv->ndo;
done:
return ret;
}
static int
ar8216_read_status(struct phy_device *phydev)
{
struct ar8216_priv *priv = phydev->priv;
phydev->speed = SPEED_100;
phydev->duplex = DUPLEX_FULL;
phydev->state = PHY_UP;
/* flush the address translation unit */
if (ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0))
return -ETIMEDOUT;
priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH);
return 0;
}
static int
ar8216_config_aneg(struct phy_device *phydev)
{
return 0;
}
static int
ar8216_probe(struct phy_device *pdev)
{
struct ar8216_priv priv;
u8 id, rev;
u32 val;
priv.phy = pdev;
val = ar8216_mii_read(&priv, AR8216_REG_CTRL);
rev = val & 0xff;
id = (val >> 8) & 0xff;
if ((id != 1) || (rev != 1))
return -ENODEV;
return 0;
}
static void
ar8216_remove(struct phy_device *pdev)
{
struct ar8216_priv *priv = pdev->priv;
struct net_device *dev = pdev->attached_dev;
if (!priv)
return;
if (priv->ndo_old && dev)
dev->netdev_ops = priv->ndo_old;
unregister_switch(&priv->dev);
kfree(priv);
}
/* template */
static struct switch_dev athdev = {
.name = "Atheros AR8216",
.cpu_port = AR8216_PORT_CPU,
.ports = AR8216_NUM_PORTS,
.vlans = AR8216_NUM_VLANS,
.attr_global = {
.attr = ar8216_globals,
.n_attr = ARRAY_SIZE(ar8216_globals),
},
.attr_port = {
.attr = ar8216_port,
.n_attr = ARRAY_SIZE(ar8216_port),
},
.attr_vlan = {
.attr = ar8216_vlan,
.n_attr = ARRAY_SIZE(ar8216_vlan),
},
.get_port_pvid = ar8216_get_pvid,
.set_port_pvid = ar8216_set_pvid,
.get_vlan_ports = ar8216_get_ports,
.set_vlan_ports = ar8216_set_ports,
.apply_config = ar8216_hw_apply,
.reset_switch = ar8216_reset_switch,
};
static struct phy_driver ar8216_driver = {
.name = "Atheros AR8216",
.features = PHY_BASIC_FEATURES,
.probe = ar8216_probe,
.remove = ar8216_remove,
.config_init = &ar8216_config_init,
.config_aneg = &ar8216_config_aneg,
.read_status = &ar8216_read_status,
.driver = { .owner = THIS_MODULE },
};
int __init
ar8216_init(void)
{
return phy_driver_register(&ar8216_driver);
}
void __exit
ar8216_exit(void)
{
phy_driver_unregister(&ar8216_driver);
}
module_init(ar8216_init);
module_exit(ar8216_exit);
MODULE_LICENSE("GPL");

View file

@ -0,0 +1,467 @@
/*
* Marvell 88E6060 switch driver
* Copyright (c) 2008 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License v2 as published by the
* Free Software Foundation
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/unistd.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/phy.h>
#include <linux/if_vlan.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include "mvswitch.h"
/* Undefine this to use trailer mode instead.
* I don't know if header mode works with all chips */
#define HEADER_MODE 1
MODULE_DESCRIPTION("Marvell 88E6060 Switch driver");
MODULE_AUTHOR("Felix Fietkau");
MODULE_LICENSE("GPL");
#define MVSWITCH_MAGIC 0x88E6060
struct mvswitch_priv {
const struct net_device_ops *ndo_old;
struct net_device_ops ndo;
struct vlan_group *grp;
u8 vlans[16];
};
#define to_mvsw(_phy) ((struct mvswitch_priv *) (_phy)->priv)
static inline u16
r16(struct phy_device *phydev, int addr, int reg)
{
return phydev->bus->read(phydev->bus, addr, reg);
}
static inline void
w16(struct phy_device *phydev, int addr, int reg, u16 val)
{
phydev->bus->write(phydev->bus, addr, reg, val);
}
static int
mvswitch_mangle_tx(struct sk_buff *skb, struct net_device *dev)
{
struct mvswitch_priv *priv;
char *buf = NULL;
u16 vid;
priv = dev->phy_ptr;
if (unlikely(!priv))
goto error;
if (unlikely(skb->len < 16))
goto error;
#ifdef HEADER_MODE
if (__vlan_hwaccel_get_tag(skb, &vid))
goto error;
if (skb_cloned(skb) || (skb->len <= 62) || (skb_headroom(skb) < MV_HEADER_SIZE)) {
if (pskb_expand_head(skb, MV_HEADER_SIZE, (skb->len < 62 ? 62 - skb->len : 0), GFP_ATOMIC))
goto error_expand;
if (skb->len < 62)
skb->len = 62;
}
buf = skb_push(skb, MV_HEADER_SIZE);
#else
if (__vlan_get_tag(skb, &vid))
goto error;
if (unlikely((vid > 15 || !priv->vlans[vid])))
goto error;
if (skb->len <= 64) {
if (pskb_expand_head(skb, 0, 64 + MV_TRAILER_SIZE - skb->len, GFP_ATOMIC))
goto error_expand;
buf = skb->data + 64;
skb->len = 64 + MV_TRAILER_SIZE;
} else {
if (skb_cloned(skb) || unlikely(skb_tailroom(skb) < 4)) {
if (pskb_expand_head(skb, 0, 4, GFP_ATOMIC))
goto error_expand;
}
buf = skb_put(skb, 4);
}
/* move the ethernet header 4 bytes forward, overwriting the vlan tag */
memmove(skb->data + 4, skb->data, 12);
skb->data += 4;
skb->len -= 4;
skb->mac_header += 4;
#endif
if (!buf)
goto error;
#ifdef HEADER_MODE
/* prepend the tag */
*((__be16 *) buf) = cpu_to_be16(
((vid << MV_HEADER_VLAN_S) & MV_HEADER_VLAN_M) |
((priv->vlans[vid] << MV_HEADER_PORTS_S) & MV_HEADER_PORTS_M)
);
#else
/* append the tag */
*((__be32 *) buf) = cpu_to_be32((
(MV_TRAILER_OVERRIDE << MV_TRAILER_FLAGS_S) |
((priv->vlans[vid] & MV_TRAILER_PORTS_M) << MV_TRAILER_PORTS_S)
));
#endif
return priv->ndo_old->ndo_start_xmit(skb, dev);
error_expand:
if (net_ratelimit())
printk("%s: failed to expand/update skb for the switch\n", dev->name);
error:
/* any errors? drop the packet! */
dev_kfree_skb_any(skb);
return 0;
}
static int
mvswitch_mangle_rx(struct sk_buff *skb, int napi)
{
struct mvswitch_priv *priv;
struct net_device *dev;
int vlan = -1;
unsigned char *buf;
int i;
dev = skb->dev;
if (!dev)
goto error;
priv = dev->phy_ptr;
if (!priv)
goto error;
if (!priv->grp)
goto error;
#ifdef HEADER_MODE
buf = skb->data;
skb_pull(skb, MV_HEADER_SIZE);
#else
buf = skb->data + skb->len - MV_TRAILER_SIZE;
if (buf[0] != 0x80)
goto error;
#endif
/* look for the vlan matching the incoming port */
for (i = 0; i < ARRAY_SIZE(priv->vlans); i++) {
if ((1 << buf[1]) & priv->vlans[i])
vlan = i;
}
if (vlan == -1)
goto error;
skb->protocol = eth_type_trans(skb, skb->dev);
if (napi)
return vlan_hwaccel_receive_skb(skb, priv->grp, vlan);
else
return vlan_hwaccel_rx(skb, priv->grp, vlan);
error:
/* no vlan? eat the packet! */
dev_kfree_skb_any(skb);
return 0;
}
static int
mvswitch_netif_rx(struct sk_buff *skb)
{
return mvswitch_mangle_rx(skb, 0);
}
static int
mvswitch_netif_receive_skb(struct sk_buff *skb)
{
return mvswitch_mangle_rx(skb, 1);
}
static void
mvswitch_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
{
struct mvswitch_priv *priv = dev->phy_ptr;
priv->grp = grp;
}
static int
mvswitch_wait_mask(struct phy_device *pdev, int addr, int reg, u16 mask, u16 val)
{
int i = 100;
u16 r;
do {
r = r16(pdev, addr, reg) & mask;
if (r == val)
return 0;
} while(--i > 0);
return -ETIMEDOUT;
}
static int
mvswitch_config_init(struct phy_device *pdev)
{
struct mvswitch_priv *priv = to_mvsw(pdev);
struct net_device *dev = pdev->attached_dev;
u8 vlmap = 0;
int i;
if (!dev)
return -EINVAL;
printk("%s: Marvell 88E6060 PHY driver attached.\n", dev->name);
pdev->supported = ADVERTISED_100baseT_Full;
pdev->advertising = ADVERTISED_100baseT_Full;
dev->phy_ptr = priv;
dev->irq = PHY_POLL;
/* initialize default vlans */
for (i = 0; i < MV_PORTS; i++)
priv->vlans[(i == MV_WANPORT ? 2 : 1)] |= (1 << i);
/* before entering reset, disable all ports */
for (i = 0; i < MV_PORTS; i++)
w16(pdev, MV_PORTREG(CONTROL, i), 0x00);
msleep(2); /* wait for the status change to settle in */
/* put the ATU in reset */
w16(pdev, MV_SWITCHREG(ATU_CTRL), MV_ATUCTL_RESET);
i = mvswitch_wait_mask(pdev, MV_SWITCHREG(ATU_CTRL), MV_ATUCTL_RESET, 0);
if (i < 0) {
printk("%s: Timeout waiting for the switch to reset.\n", dev->name);
return i;
}
/* set the ATU flags */
w16(pdev, MV_SWITCHREG(ATU_CTRL),
MV_ATUCTL_NO_LEARN |
MV_ATUCTL_ATU_1K |
MV_ATUCTL_AGETIME(MV_ATUCTL_AGETIME_MIN) /* minimum without disabling ageing */
);
/* initialize the cpu port */
w16(pdev, MV_PORTREG(CONTROL, MV_CPUPORT),
#ifdef HEADER_MODE
MV_PORTCTRL_HEADER |
#else
MV_PORTCTRL_RXTR |
MV_PORTCTRL_TXTR |
#endif
MV_PORTCTRL_ENABLED
);
/* wait for the phy change to settle in */
msleep(2);
for (i = 0; i < MV_PORTS; i++) {
u8 pvid = 0;
int j;
vlmap = 0;
/* look for the matching vlan */
for (j = 0; j < ARRAY_SIZE(priv->vlans); j++) {
if (priv->vlans[j] & (1 << i)) {
vlmap = priv->vlans[j];
pvid = j;
}
}
/* leave port unconfigured if it's not part of a vlan */
if (!vlmap)
continue;
/* add the cpu port to the allowed destinations list */
vlmap |= (1 << MV_CPUPORT);
/* take port out of its own vlan destination map */
vlmap &= ~(1 << i);
/* apply vlan settings */
w16(pdev, MV_PORTREG(VLANMAP, i),
MV_PORTVLAN_PORTS(vlmap) |
MV_PORTVLAN_ID(i)
);
/* re-enable port */
w16(pdev, MV_PORTREG(CONTROL, i),
MV_PORTCTRL_ENABLED
);
}
w16(pdev, MV_PORTREG(VLANMAP, MV_CPUPORT),
MV_PORTVLAN_ID(MV_CPUPORT)
);
/* set the port association vector */
for (i = 0; i <= MV_PORTS; i++) {
w16(pdev, MV_PORTREG(ASSOC, i),
MV_PORTASSOC_PORTS(1 << i)
);
}
/* init switch control */
w16(pdev, MV_SWITCHREG(CTRL),
MV_SWITCHCTL_MSIZE |
MV_SWITCHCTL_DROP
);
/* hook into the tx function */
priv->ndo_old = dev->netdev_ops;
memcpy(&priv->ndo, priv->ndo_old, sizeof(struct net_device_ops));
priv->ndo.ndo_start_xmit = mvswitch_mangle_tx;
priv->ndo.ndo_vlan_rx_register = mvswitch_vlan_rx_register;
dev->netdev_ops = &priv->ndo;
pdev->pkt_align = 2;
pdev->netif_receive_skb = mvswitch_netif_receive_skb;
pdev->netif_rx = mvswitch_netif_rx;
#ifdef HEADER_MODE
dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX;
#else
dev->features |= NETIF_F_HW_VLAN_RX;
#endif
return 0;
}
static int
mvswitch_read_status(struct phy_device *pdev)
{
pdev->speed = SPEED_100;
pdev->duplex = DUPLEX_FULL;
pdev->state = PHY_UP;
/* XXX ugly workaround: we can't force the switch
* to gracefully handle hosts moving from one port to another,
* so we have to regularly clear the ATU database */
/* wait for the ATU to become available */
mvswitch_wait_mask(pdev, MV_SWITCHREG(ATU_OP), MV_ATUOP_INPROGRESS, 0);
/* flush the ATU */
w16(pdev, MV_SWITCHREG(ATU_OP),
MV_ATUOP_INPROGRESS |
MV_ATUOP_FLUSH_ALL
);
/* wait for operation to complete */
mvswitch_wait_mask(pdev, MV_SWITCHREG(ATU_OP), MV_ATUOP_INPROGRESS, 0);
return 0;
}
static int
mvswitch_config_aneg(struct phy_device *phydev)
{
return 0;
}
static void
mvswitch_remove(struct phy_device *pdev)
{
struct mvswitch_priv *priv = to_mvsw(pdev);
struct net_device *dev = pdev->attached_dev;
/* restore old netdev ops */
if (priv->ndo_old && dev)
dev->netdev_ops = priv->ndo_old;
dev->vlan_rx_register = NULL;
dev->vlan_rx_kill_vid = NULL;
dev->phy_ptr = NULL;
dev->features &= ~NETIF_F_HW_VLAN_RX;
kfree(priv);
}
static int
mvswitch_probe(struct phy_device *pdev)
{
struct mvswitch_priv *priv;
priv = kzalloc(sizeof(struct mvswitch_priv), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
pdev->priv = priv;
return 0;
}
static int
mvswitch_fixup(struct phy_device *dev)
{
u16 reg;
if (dev->addr != 0x10)
return 0;
reg = dev->bus->read(dev->bus, MV_PORTREG(IDENT, 0)) & MV_IDENT_MASK;
if (reg != MV_IDENT_VALUE)
return 0;
dev->phy_id = MVSWITCH_MAGIC;
return 0;
}
static struct phy_driver mvswitch_driver = {
.name = "Marvell 88E6060",
.phy_id = MVSWITCH_MAGIC,
.phy_id_mask = 0xffffffff,
.features = PHY_BASIC_FEATURES,
.probe = &mvswitch_probe,
.remove = &mvswitch_remove,
.config_init = &mvswitch_config_init,
.config_aneg = &mvswitch_config_aneg,
.read_status = &mvswitch_read_status,
.driver = { .owner = THIS_MODULE,},
};
static int __init
mvswitch_init(void)
{
phy_register_fixup_for_id(PHY_ANY_ID, mvswitch_fixup);
return phy_driver_register(&mvswitch_driver);
}
static void __exit
mvswitch_exit(void)
{
phy_driver_unregister(&mvswitch_driver);
}
module_init(mvswitch_init);
module_exit(mvswitch_exit);

View file

@ -0,0 +1,27 @@
#ifndef __GLAMO_ENGINE_H
#define __GLAMO_ENGINE_H
enum glamo_engine {
GLAMO_ENGINE_CAPTURE = 0,
GLAMO_ENGINE_ISP = 1,
GLAMO_ENGINE_JPEG = 2,
GLAMO_ENGINE_MPEG_ENC = 3,
GLAMO_ENGINE_MPEG_DEC = 4,
GLAMO_ENGINE_LCD = 5,
GLAMO_ENGINE_CMDQ = 6,
GLAMO_ENGINE_2D = 7,
GLAMO_ENGINE_3D = 8,
GLAMO_ENGINE_MMC = 9,
GLAMO_ENGINE_MICROP0 = 10,
GLAMO_ENGINE_RISC = 11,
GLAMO_ENGINE_MICROP1_MPEG_ENC = 12,
GLAMO_ENGINE_MICROP1_MPEG_DEC = 13,
#if 0
GLAMO_ENGINE_H264_DEC = 14,
GLAMO_ENGINE_RISC1 = 15,
GLAMO_ENGINE_SPI = 16,
#endif
__NUM_GLAMO_ENGINES
};
#endif

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#ifndef _LINUX_GLAMOFB_H
#define _LINUX_GLAMOFB_H
#include <linux/fb.h>
#ifdef __KERNEL__
struct glamo_core;
struct glamofb_handle;
struct glamo_fb_platform_data {
int width, height;
int num_modes;
struct fb_videomode *modes;
struct glamo_core *core;
};
int glamofb_cmd_mode(struct glamofb_handle *gfb, int on);
int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val);
#ifdef CONFIG_MFD_GLAMO
void glamo_lcm_reset(struct platform_device *pdev, int level);
#else
#define glamo_lcm_reset(...) do {} while (0)
#endif
#endif
#define GLAMOFB_ENGINE_ENABLE _IOW('F', 0x1, __u32)
#define GLAMOFB_ENGINE_DISABLE _IOW('F', 0x2, __u32)
#define GLAMOFB_ENGINE_RESET _IOW('F', 0x3, __u32)
#endif

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/*
* Definitions for the GPIO buttons interface driver
*
* Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org>
*
* This file was based on: /include/linux/gpio_keys.h
* The original gpio_keys.h seems not to have a license.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#ifndef _GPIO_BUTTONS_H_
#define _GPIO_BUTTONS_H_
struct gpio_button {
int gpio; /* GPIO line number */
int active_low;
char *desc; /* button description */
int type; /* input event type (EV_KEY, EV_SW) */
int code; /* input event code (KEY_*, SW_*) */
int count;
int threshold; /* count threshold */
};
struct gpio_buttons_platform_data {
struct gpio_button *buttons;
int nbuttons; /* number of buttons */
int poll_interval; /* polling interval */
};
#endif /* _GPIO_BUTTONS_H_ */

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#ifndef _GPIODEV_H__
#define _GPIODEV_H__
#define IOC_GPIODEV_MAGIC 'B'
#define GPIO_GET _IO(IOC_GPIODEV_MAGIC, 10)
#define GPIO_SET _IO(IOC_GPIODEV_MAGIC, 11)
#define GPIO_CLEAR _IO(IOC_GPIODEV_MAGIC, 12)
#define GPIO_DIR_IN _IO(IOC_GPIODEV_MAGIC, 13)
#define GPIO_DIR_OUT _IO(IOC_GPIODEV_MAGIC, 14)
#endif