1 files changed, 0 insertions, 564 deletions

diff --git a/ANDROID_3.4.5/arch/powerpc/kernel/nvram_64.c b/ANDROID_3.4.5/arch/powerpc/kernel/nvram_64.c
deleted file mode 100644
index bec1e930..00000000
--- a/ANDROID_3.4.5/arch/powerpc/kernel/nvram_64.c
+++ /dev/null
@@ -1,564 +0,0 @@
-/*
- *  c 2001 PPC 64 Team, IBM Corp
- *
- *      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.
- *
- * /dev/nvram driver for PPC64
- *
- * This perhaps should live in drivers/char
- *
- * TODO: Split the /dev/nvram part (that one can use
- *       drivers/char/generic_nvram.c) from the arch & partition
- *       parsing code.
- */
-
-#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 <linux/slab.h>
-#include <linux/spinlock.h>
-#include <asm/uaccess.h>
-#include <asm/nvram.h>
-#include <asm/rtas.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-
-#undef DEBUG_NVRAM
-
-#define NVRAM_HEADER_LEN	sizeof(struct nvram_header)
-#define NVRAM_BLOCK_LEN		NVRAM_HEADER_LEN
-
-/* If change this size, then change the size of NVNAME_LEN */
-struct nvram_header {
-	unsigned char signature;
-	unsigned char checksum;
-	unsigned short length;
-	/* Terminating null required only for names < 12 chars. */
-	char name[12];
-};
-
-struct nvram_partition {
-	struct list_head partition;
-	struct nvram_header header;
-	unsigned int index;
-};
-
-static LIST_HEAD(nvram_partitions);
-
-static loff_t dev_nvram_llseek(struct file *file, loff_t offset, int origin)
-{
-	int size;
-
-	if (ppc_md.nvram_size == NULL)
-		return -ENODEV;
-	size = ppc_md.nvram_size();
-
-	switch (origin) {
-	case 1:
-		offset += file->f_pos;
-		break;
-	case 2:
-		offset += size;
-		break;
-	}
-	if (offset < 0)
-		return -EINVAL;
-	file->f_pos = offset;
-	return file->f_pos;
-}
-
-
-static ssize_t dev_nvram_read(struct file *file, char __user *buf,
-			  size_t count, loff_t *ppos)
-{
-	ssize_t ret;
-	char *tmp = NULL;
-	ssize_t size;
-
-	ret = -ENODEV;
-	if (!ppc_md.nvram_size)
-		goto out;
-
-	ret = 0;
-	size = ppc_md.nvram_size();
-	if (*ppos >= size || size < 0)
-		goto out;
-
-	count = min_t(size_t, count, size - *ppos);
-	count = min(count, PAGE_SIZE);
-
-	ret = -ENOMEM;
-	tmp = kmalloc(count, GFP_KERNEL);
-	if (!tmp)
-		goto out;
-
-	ret = ppc_md.nvram_read(tmp, count, ppos);
-	if (ret <= 0)
-		goto out;
-
-	if (copy_to_user(buf, tmp, ret))
-		ret = -EFAULT;
-
-out:
-	kfree(tmp);
-	return ret;
-
-}
-
-static ssize_t dev_nvram_write(struct file *file, const char __user *buf,
-			  size_t count, loff_t *ppos)
-{
-	ssize_t ret;
-	char *tmp = NULL;
-	ssize_t size;
-
-	ret = -ENODEV;
-	if (!ppc_md.nvram_size)
-		goto out;
-
-	ret = 0;
-	size = ppc_md.nvram_size();
-	if (*ppos >= size || size < 0)
-		goto out;
-
-	count = min_t(size_t, count, size - *ppos);
-	count = min(count, PAGE_SIZE);
-
-	ret = -ENOMEM;
-	tmp = kmalloc(count, GFP_KERNEL);
-	if (!tmp)
-		goto out;
-
-	ret = -EFAULT;
-	if (copy_from_user(tmp, buf, count))
-		goto out;
-
-	ret = ppc_md.nvram_write(tmp, count, ppos);
-
-out:
-	kfree(tmp);
-	return ret;
-
-}
-
-static long dev_nvram_ioctl(struct file *file, unsigned int cmd,
-			    unsigned long arg)
-{
-	switch(cmd) {
-#ifdef CONFIG_PPC_PMAC
-	case OBSOLETE_PMAC_NVRAM_GET_OFFSET:
-		printk(KERN_WARNING "nvram: Using obsolete PMAC_NVRAM_GET_OFFSET ioctl\n");
-	case IOC_NVRAM_GET_OFFSET: {
-		int part, offset;
-
-		if (!machine_is(powermac))
-			return -EINVAL;
-		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 (offset < 0)
-			return offset;
-		if (copy_to_user((void __user*)arg, &offset, sizeof(offset)) != 0)
-			return -EFAULT;
-		return 0;
-	}
-#endif /* CONFIG_PPC_PMAC */
-	default:
-		return -EINVAL;
-	}
-}
-
-const struct file_operations nvram_fops = {
-	.owner		= THIS_MODULE,
-	.llseek		= dev_nvram_llseek,
-	.read		= dev_nvram_read,
-	.write		= dev_nvram_write,
-	.unlocked_ioctl	= dev_nvram_ioctl,
-};
-
-static struct miscdevice nvram_dev = {
-	NVRAM_MINOR,
-	"nvram",
-	&nvram_fops
-};
-
-
-#ifdef DEBUG_NVRAM
-static void __init nvram_print_partitions(char * label)
-{
-	struct nvram_partition * tmp_part;
-	
-	printk(KERN_WARNING "--------%s---------\n", label);
-	printk(KERN_WARNING "indx\t\tsig\tchks\tlen\tname\n");
-	list_for_each_entry(tmp_part, &nvram_partitions, partition) {
-		printk(KERN_WARNING "%4d    \t%02x\t%02x\t%d\t%12s\n",
-		       tmp_part->index, tmp_part->header.signature,
-		       tmp_part->header.checksum, tmp_part->header.length,
-		       tmp_part->header.name);
-	}
-}
-#endif
-
-
-static int __init nvram_write_header(struct nvram_partition * part)
-{
-	loff_t tmp_index;
-	int rc;
-	
-	tmp_index = part->index;
-	rc = ppc_md.nvram_write((char *)&part->header, NVRAM_HEADER_LEN, &tmp_index); 
-
-	return rc;
-}
-
-
-static unsigned char __init nvram_checksum(struct nvram_header *p)
-{
-	unsigned int c_sum, c_sum2;
-	unsigned short *sp = (unsigned short *)p->name; /* assume 6 shorts */
-	c_sum = p->signature + p->length + sp[0] + sp[1] + sp[2] + sp[3] + sp[4] + sp[5];
-
-	/* The sum may have spilled into the 3rd byte.  Fold it back. */
-	c_sum = ((c_sum & 0xffff) + (c_sum >> 16)) & 0xffff;
-	/* The sum cannot exceed 2 bytes.  Fold it into a checksum */
-	c_sum2 = (c_sum >> 8) + (c_sum << 8);
-	c_sum = ((c_sum + c_sum2) >> 8) & 0xff;
-	return c_sum;
-}
-
-/*
- * Per the criteria passed via nvram_remove_partition(), should this
- * partition be removed?  1=remove, 0=keep
- */
-static int nvram_can_remove_partition(struct nvram_partition *part,
-		const char *name, int sig, const char *exceptions[])
-{
-	if (part->header.signature != sig)
-		return 0;
-	if (name) {
-		if (strncmp(name, part->header.name, 12))
-			return 0;
-	} else if (exceptions) {
-		const char **except;
-		for (except = exceptions; *except; except++) {
-			if (!strncmp(*except, part->header.name, 12))
-				return 0;
-		}
-	}
-	return 1;
-}
-
-/**
- * nvram_remove_partition - Remove one or more partitions in nvram
- * @name: name of the partition to remove, or NULL for a
- *        signature only match
- * @sig: signature of the partition(s) to remove
- * @exceptions: When removing all partitions with a matching signature,
- *        leave these alone.
- */
-
-int __init nvram_remove_partition(const char *name, int sig,
-						const char *exceptions[])
-{
-	struct nvram_partition *part, *prev, *tmp;
-	int rc;
-
-	list_for_each_entry(part, &nvram_partitions, partition) {
-		if (!nvram_can_remove_partition(part, name, sig, exceptions))
-			continue;
-
-		/* Make partition a free partition */
-		part->header.signature = NVRAM_SIG_FREE;
-		strncpy(part->header.name, "wwwwwwwwwwww", 12);
-		part->header.checksum = nvram_checksum(&part->header);
-		rc = nvram_write_header(part);
-		if (rc <= 0) {
-			printk(KERN_ERR "nvram_remove_partition: nvram_write failed (%d)\n", rc);
-			return rc;
-		}
-	}
-
-	/* Merge contiguous ones */
-	prev = NULL;
-	list_for_each_entry_safe(part, tmp, &nvram_partitions, partition) {
-		if (part->header.signature != NVRAM_SIG_FREE) {
-			prev = NULL;
-			continue;
-		}
-		if (prev) {
-			prev->header.length += part->header.length;
-			prev->header.checksum = nvram_checksum(&part->header);
-			rc = nvram_write_header(part);
-			if (rc <= 0) {
-				printk(KERN_ERR "nvram_remove_partition: nvram_write failed (%d)\n", rc);
-				return rc;
-			}
-			list_del(&part->partition);
-			kfree(part);
-		} else
-			prev = part;
-	}
-	
-	return 0;
-}
-
-/**
- * nvram_create_partition - Create a partition in nvram
- * @name: name of the partition to create
- * @sig: signature of the partition to create
- * @req_size: size of data to allocate in bytes
- * @min_size: minimum acceptable size (0 means req_size)
- *
- * Returns a negative error code or a positive nvram index
- * of the beginning of the data area of the newly created
- * partition. If you provided a min_size smaller than req_size
- * you need to query for the actual size yourself after the
- * call using nvram_partition_get_size().
- */
-loff_t __init nvram_create_partition(const char *name, int sig,
-				     int req_size, int min_size)
-{
-	struct nvram_partition *part;
-	struct nvram_partition *new_part;
-	struct nvram_partition *free_part = NULL;
-	static char nv_init_vals[16];
-	loff_t tmp_index;
-	long size = 0;
-	int rc;
-
-	/* Convert sizes from bytes to blocks */
-	req_size = _ALIGN_UP(req_size, NVRAM_BLOCK_LEN) / NVRAM_BLOCK_LEN;
-	min_size = _ALIGN_UP(min_size, NVRAM_BLOCK_LEN) / NVRAM_BLOCK_LEN;
-
-	/* If no minimum size specified, make it the same as the
-	 * requested size
-	 */
-	if (min_size == 0)
-		min_size = req_size;
-	if (min_size > req_size)
-		return -EINVAL;
-
-	/* Now add one block to each for the header */
-	req_size += 1;
-	min_size += 1;
-
-	/* Find a free partition that will give us the maximum needed size 
-	   If can't find one that will give us the minimum size needed */
-	list_for_each_entry(part, &nvram_partitions, partition) {
-		if (part->header.signature != NVRAM_SIG_FREE)
-			continue;
-
-		if (part->header.length >= req_size) {
-			size = req_size;
-			free_part = part;
-			break;
-		}
-		if (part->header.length > size &&
-		    part->header.length >= min_size) {
-			size = part->header.length;
-			free_part = part;
-		}
-	}
-	if (!size)
-		return -ENOSPC;
-	
-	/* Create our OS partition */
-	new_part = kmalloc(sizeof(*new_part), GFP_KERNEL);
-	if (!new_part) {
-		pr_err("nvram_create_os_partition: kmalloc failed\n");
-		return -ENOMEM;
-	}
-
-	new_part->index = free_part->index;
-	new_part->header.signature = sig;
-	new_part->header.length = size;
-	strncpy(new_part->header.name, name, 12);
-	new_part->header.checksum = nvram_checksum(&new_part->header);
-
-	rc = nvram_write_header(new_part);
-	if (rc <= 0) {
-		pr_err("nvram_create_os_partition: nvram_write_header "
-		       "failed (%d)\n", rc);
-		return rc;
-	}
-	list_add_tail(&new_part->partition, &free_part->partition);
-
-	/* Adjust or remove the partition we stole the space from */
-	if (free_part->header.length > size) {
-		free_part->index += size * NVRAM_BLOCK_LEN;
-		free_part->header.length -= size;
-		free_part->header.checksum = nvram_checksum(&free_part->header);
-		rc = nvram_write_header(free_part);
-		if (rc <= 0) {
-			pr_err("nvram_create_os_partition: nvram_write_header "
-			       "failed (%d)\n", rc);
-			return rc;
-		}
-	} else {
-		list_del(&free_part->partition);
-		kfree(free_part);
-	} 
-
-	/* Clear the new partition */
-	for (tmp_index = new_part->index + NVRAM_HEADER_LEN;
-	     tmp_index <  ((size - 1) * NVRAM_BLOCK_LEN);
-	     tmp_index += NVRAM_BLOCK_LEN) {
-		rc = ppc_md.nvram_write(nv_init_vals, NVRAM_BLOCK_LEN, &tmp_index);
-		if (rc <= 0) {
-			pr_err("nvram_create_partition: nvram_write failed (%d)\n", rc);
-			return rc;
-		}
-	}
-	
-	return new_part->index + NVRAM_HEADER_LEN;
-}
-
-/**
- * nvram_get_partition_size - Get the data size of an nvram partition
- * @data_index: This is the offset of the start of the data of
- *              the partition. The same value that is returned by
- *              nvram_create_partition().
- */
-int nvram_get_partition_size(loff_t data_index)
-{
-	struct nvram_partition *part;
-	
-	list_for_each_entry(part, &nvram_partitions, partition) {
-		if (part->index + NVRAM_HEADER_LEN == data_index)
-			return (part->header.length - 1) * NVRAM_BLOCK_LEN;
-	}
-	return -1;
-}
-
-
-/**
- * nvram_find_partition - Find an nvram partition by signature and name
- * @name: Name of the partition or NULL for any name
- * @sig: Signature to test against
- * @out_size: if non-NULL, returns the size of the data part of the partition
- */
-loff_t nvram_find_partition(const char *name, int sig, int *out_size)
-{
-	struct nvram_partition *p;
-
-	list_for_each_entry(p, &nvram_partitions, partition) {
-		if (p->header.signature == sig &&
-		    (!name || !strncmp(p->header.name, name, 12))) {
-			if (out_size)
-				*out_size = (p->header.length - 1) *
-					NVRAM_BLOCK_LEN;
-			return p->index + NVRAM_HEADER_LEN;
-		}
-	}
-	return 0;
-}
-
-int __init nvram_scan_partitions(void)
-{
-	loff_t cur_index = 0;
-	struct nvram_header phead;
-	struct nvram_partition * tmp_part;
-	unsigned char c_sum;
-	char * header;
-	int total_size;
-	int err;
-
-	if (ppc_md.nvram_size == NULL || ppc_md.nvram_size() <= 0)
-		return -ENODEV;
-	total_size = ppc_md.nvram_size();
-	
-	header = kmalloc(NVRAM_HEADER_LEN, GFP_KERNEL);
-	if (!header) {
-		printk(KERN_ERR "nvram_scan_partitions: Failed kmalloc\n");
-		return -ENOMEM;
-	}
-
-	while (cur_index < total_size) {
-
-		err = ppc_md.nvram_read(header, NVRAM_HEADER_LEN, &cur_index);
-		if (err != NVRAM_HEADER_LEN) {
-			printk(KERN_ERR "nvram_scan_partitions: Error parsing "
-			       "nvram partitions\n");
-			goto out;
-		}
-
-		cur_index -= NVRAM_HEADER_LEN; /* nvram_read will advance us */
-
-		memcpy(&phead, header, NVRAM_HEADER_LEN);
-
-		err = 0;
-		c_sum = nvram_checksum(&phead);
-		if (c_sum != phead.checksum) {
-			printk(KERN_WARNING "WARNING: nvram partition checksum"
-			       " was %02x, should be %02x!\n",
-			       phead.checksum, c_sum);
-			printk(KERN_WARNING "Terminating nvram partition scan\n");
-			goto out;
-		}
-		if (!phead.length) {
-			printk(KERN_WARNING "WARNING: nvram corruption "
-			       "detected: 0-length partition\n");
-			goto out;
-		}
-		tmp_part = (struct nvram_partition *)
-			kmalloc(sizeof(struct nvram_partition), GFP_KERNEL);
-		err = -ENOMEM;
-		if (!tmp_part) {
-			printk(KERN_ERR "nvram_scan_partitions: kmalloc failed\n");
-			goto out;
-		}
-		
-		memcpy(&tmp_part->header, &phead, NVRAM_HEADER_LEN);
-		tmp_part->index = cur_index;
-		list_add_tail(&tmp_part->partition, &nvram_partitions);
-		
-		cur_index += phead.length * NVRAM_BLOCK_LEN;
-	}
-	err = 0;
-
-#ifdef DEBUG_NVRAM
-	nvram_print_partitions("NVRAM Partitions");
-#endif
-
- out:
-	kfree(header);
-	return err;
-}
-
-static int __init nvram_init(void)
-{
-	int rc;
-	
-	BUILD_BUG_ON(NVRAM_BLOCK_LEN != 16);
-
-	if (ppc_md.nvram_size == NULL || ppc_md.nvram_size() <= 0)
-		return  -ENODEV;
-
-  	rc = misc_register(&nvram_dev);
-	if (rc != 0) {
-		printk(KERN_ERR "nvram_init: failed to register device\n");
-		return rc;
-	}
-  	
-  	return rc;
-}
-
-void __exit nvram_cleanup(void)
-{
-        misc_deregister( &nvram_dev );
-}
-
-module_init(nvram_init);
-module_exit(nvram_cleanup);
-MODULE_LICENSE("GPL");