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@@ -1,130 +0,0 @@
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-/*
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- * /dev/nvram driver for Power Macintosh.
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- */
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-
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-#define NVRAM_VERSION "1.0"
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-
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-#include <linux/module.h>
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-
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-#include <linux/types.h>
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-#include <linux/errno.h>
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-#include <linux/fs.h>
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-#include <linux/miscdevice.h>
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-#include <linux/fcntl.h>
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-#include <linux/nvram.h>
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-#include <linux/init.h>
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-#include <asm/uaccess.h>
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-#include <asm/nvram.h>
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-
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-#define NVRAM_SIZE 8192
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-
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-static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
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-{
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- switch (origin) {
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- case 0:
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- break;
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- case 1:
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- offset += file->f_pos;
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- break;
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- case 2:
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- offset += NVRAM_SIZE;
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- break;
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- default:
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- offset = -1;
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- }
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- if (offset < 0)
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- return -EINVAL;
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-
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- file->f_pos = offset;
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- return file->f_pos;
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-}
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-
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-static ssize_t read_nvram(struct file *file, char __user *buf,
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- size_t count, loff_t *ppos)
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-{
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- unsigned int i;
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- char __user *p = buf;
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-
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- if (!access_ok(VERIFY_WRITE, buf, count))
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- return -EFAULT;
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- if (*ppos >= NVRAM_SIZE)
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- return 0;
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- for (i = *ppos; count > 0 && i < NVRAM_SIZE; ++i, ++p, --count)
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- if (__put_user(nvram_read_byte(i), p))
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- return -EFAULT;
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- *ppos = i;
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- return p - buf;
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-}
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-
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-static ssize_t write_nvram(struct file *file, const char __user *buf,
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- size_t count, loff_t *ppos)
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-{
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- unsigned int i;
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- const char __user *p = buf;
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- char c;
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-
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- if (!access_ok(VERIFY_READ, buf, count))
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- return -EFAULT;
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- if (*ppos >= NVRAM_SIZE)
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- return 0;
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- for (i = *ppos; count > 0 && i < NVRAM_SIZE; ++i, ++p, --count) {
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- if (__get_user(c, p))
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- return -EFAULT;
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- nvram_write_byte(c, i);
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- }
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- *ppos = i;
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- return p - buf;
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-}
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-
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-static long nvram_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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-{
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- switch(cmd) {
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- case PMAC_NVRAM_GET_OFFSET:
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- {
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- int part, offset;
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- if (copy_from_user(&part, (void __user*)arg, sizeof(part)) != 0)
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- return -EFAULT;
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- if (part < pmac_nvram_OF || part > pmac_nvram_NR)
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- return -EINVAL;
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- offset = pmac_get_partition(part);
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- if (copy_to_user((void __user*)arg, &offset, sizeof(offset)) != 0)
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- return -EFAULT;
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- break;
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- }
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-
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- default:
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- return -EINVAL;
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- }
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-
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- return 0;
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-}
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-
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-const struct file_operations nvram_fops = {
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- .owner = THIS_MODULE,
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- .llseek = nvram_llseek,
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- .read = read_nvram,
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- .write = write_nvram,
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- .unlocked_ioctl = nvram_ioctl,
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-};
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-
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-static struct miscdevice nvram_dev = {
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- NVRAM_MINOR,
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- "nvram",
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- &nvram_fops
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-};
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-
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-int __init nvram_init(void)
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-{
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- printk(KERN_INFO "Macintosh non-volatile memory driver v%s\n",
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- NVRAM_VERSION);
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- return misc_register(&nvram_dev);
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-}
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-
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-void __exit nvram_cleanup(void)
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-{
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- misc_deregister( &nvram_dev );
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-}
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-
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-module_init(nvram_init);
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-module_exit(nvram_cleanup);
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-MODULE_LICENSE("GPL");
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