linux-imx

/*

 * Copyright © 2009 - Maxim Levitsky

 * SmartMedia/xD translation layer

 *

 * 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/random.h>

#include <linux/hdreg.h>

#include <linux/kthread.h>

#include <linux/freezer.h>

#include <linux/sysfs.h>

#include <linux/bitops.h>

#include <linux/slab.h>

#include <linux/mtd/nand_ecc.h>

#include "nand/raw/sm_common.h"

#include "sm_ftl.h"

​

​

​

static struct workqueue_struct *cache_flush_workqueue;

​

static int cache_timeout = 1000;

module_param(cache_timeout, int, S_IRUGO);

MODULE_PARM_DESC(cache_timeout,

    "Timeout (in ms) for cache flush (1000 ms default");

​

static int debug;

module_param(debug, int, S_IRUGO | S_IWUSR);

MODULE_PARM_DESC(debug, "Debug level (0-2)");

​

​

/* ------------------- sysfs attributes ---------------------------------- */

struct sm_sysfs_attribute {

    struct device_attribute dev_attr;

    char *data;

    int len;

};

​

static ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,

             char *buf)

{

    struct sm_sysfs_attribute *sm_attr =

        container_of(attr, struct sm_sysfs_attribute, dev_attr);

​

    strncpy(buf, sm_attr->data, sm_attr->len);

    return sm_attr->len;

}

​

​

#define NUM_ATTRIBUTES 1

#define SM_CIS_VENDOR_OFFSET 0x59

static struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)

{

    struct attribute_group *attr_group;

    struct attribute **attributes;

    struct sm_sysfs_attribute *vendor_attribute;

    char *vendor;

​