Signed-off-by: Finn Thain <fth...@telegraphics.com.au>
Acked-by: Geert Uytterhoeven <ge...@linux-m68k.org>
---
drivers/macintosh/nvram.c | 130 ----------------------------------------------
1 file changed, 130 deletions(-)
Index: linux/drivers/macintosh/nvram.c
===================================================================
--- linux.orig/drivers/macintosh/nvram.c 2015-06-14 17:45:34.000000000
+1000
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,130 +0,0 @@
-/*
- * /dev/nvram driver for Power Macintosh.
- */
-
-#define NVRAM_VERSION "1.0"
-
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/fcntl.h>
-#include <linux/nvram.h>
-#include <linux/init.h>
-#include <asm/uaccess.h>
-#include <asm/nvram.h>
-
-#define NVRAM_SIZE 8192
-
-static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
-{
- switch (origin) {
- case 0:
- break;
- case 1:
- offset += file->f_pos;
- break;
- case 2:
- offset += NVRAM_SIZE;
- break;
- default:
- offset = -1;
- }
- if (offset < 0)
- return -EINVAL;
-
- file->f_pos = offset;
- return file->f_pos;
-}
-
-static ssize_t read_nvram(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-{
- unsigned int i;
- char __user *p = buf;
-
- if (!access_ok(VERIFY_WRITE, buf, count))
- return -EFAULT;
- if (*ppos >= NVRAM_SIZE)
- return 0;
- for (i = *ppos; count > 0 && i < NVRAM_SIZE; ++i, ++p, --count)
- if (__put_user(nvram_read_byte(i), p))
- return -EFAULT;
- *ppos = i;
- return p - buf;
-}
-
-static ssize_t write_nvram(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- unsigned int i;
- const char __user *p = buf;
- char c;
-
- if (!access_ok(VERIFY_READ, buf, count))
- return -EFAULT;
- if (*ppos >= NVRAM_SIZE)
- return 0;
- for (i = *ppos; count > 0 && i < NVRAM_SIZE; ++i, ++p, --count) {
- if (__get_user(c, p))
- return -EFAULT;
- nvram_write_byte(c, i);
- }
- *ppos = i;
- return p - buf;
-}
-
-static long nvram_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
- switch(cmd) {
- case PMAC_NVRAM_GET_OFFSET:
- {
- int part, offset;
- if (copy_from_user(&part, (void __user*)arg,
sizeof(part)) != 0)
- return -EFAULT;
- if (part < pmac_nvram_OF || part > pmac_nvram_NR)
- return -EINVAL;
- offset = pmac_get_partition(part);
- if (copy_to_user((void __user*)arg, &offset,
sizeof(offset)) != 0)
- return -EFAULT;
- break;
- }
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-const struct file_operations nvram_fops = {
- .owner = THIS_MODULE,
- .llseek = nvram_llseek,
- .read = read_nvram,
- .write = write_nvram,
- .unlocked_ioctl = nvram_ioctl,
-};
-
-static struct miscdevice nvram_dev = {
- NVRAM_MINOR,
- "nvram",
- &nvram_fops
-};
-
-int __init nvram_init(void)
-{
- printk(KERN_INFO "Macintosh non-volatile memory driver v%s\n",
- NVRAM_VERSION);
- return misc_register(&nvram_dev);
-}
-
-void __exit nvram_cleanup(void)
-{
- misc_deregister( &nvram_dev );
-}
-
-module_init(nvram_init);
-module_exit(nvram_cleanup);
-MODULE_LICENSE("GPL");
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