rename target/linux/generic-2.6 to generic

[openwrt.git] / target / linux / generic-2.6 / files / drivers / char / gpio_dev.c

diff --git a/target/linux/generic-2.6/files/drivers/char/gpio_dev.c b/target/linux/generic-2.6/files/drivers/char/gpio_dev.c
deleted file mode 100644 (file)
index e6d5b1d..0000000
--- a/target/linux/generic-2.6/files/drivers/char/gpio_dev.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * 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
- *
- * dpg 20100106
- */
-
-#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 struct class *gpiodev_class;
-
-
-/* third argument of user space ioctl ('arg' here) contains the <pin> */
-static int
-gpio_ioctl(struct inode * inode, struct file * file, unsigned int cmd,
-          unsigned long arg)
-{
-       int retval = 0;
-
-       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:
-               retval = gpio_direction_input(arg);
-               break;
-       case GPIO_DIR_OUT:
-               retval = gpio_direction_output(arg, 0);
-               break;
-       case GPIO_DIR_HIGH:
-               retval = gpio_direction_output(arg, 1);
-               break;
-       case GPIO_REQUEST:
-               /* should be first ioctl operation on <pin> */
-               retval = gpio_request(arg, DRVNAME);
-               break;
-       case GPIO_FREE:
-               /* should be last ioctl operation on <pin> */
-               /* may be needed first if previous user missed this ioctl */
-               gpio_free(arg);
-               break;
-       case GPIO_CAN_SLEEP:
-               retval = gpio_cansleep(arg);
-               break;
-       default:
-               retval = -EINVAL;
-               /* = -ENOTTY; // correct return but ... */
-               break;
-       }
-       return retval;
-}
-
-/* Allow co-incident opens */
-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;
-       }
-out:
-       return result;
-}
-
-static int
-gpio_close(struct inode * inode, struct file * file)
-{
-       /* could track all <pin>s requested by this fd and gpio_free()
-         * them here
-        */
-       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);
-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!\n");
-
-       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");