linux-imx

/*

 *  Copyright (C) 1997-1998 Mark Lord

 *  Copyright (C) 2003      Red Hat

 *

 *  Some code was moved here from ide.c, see it for original copyrights.

 */

​

/*

 * This is the /proc/ide/ filesystem implementation.

 *

 * Drive/Driver settings can be retrieved by reading the drive's

 * "settings" files.  e.g.    "cat /proc/ide0/hda/settings"

 * To write a new value "val" into a specific setting "name", use:

 *   echo "name:val" >/proc/ide/ide0/hda/settings

 */

​

#include <linux/module.h>

​

#include <linux/uaccess.h>

#include <linux/errno.h>

#include <linux/proc_fs.h>

#include <linux/stat.h>

#include <linux/mm.h>

#include <linux/pci.h>

#include <linux/ctype.h>

#include <linux/ide.h>

#include <linux/seq_file.h>

#include <linux/slab.h>

​

#include <asm/io.h>

​

static struct proc_dir_entry *proc_ide_root;

​

static int ide_imodel_proc_show(struct seq_file *m, void *v)

{

    ide_hwif_t  *hwif = (ide_hwif_t *) m->private;

    const char  *name;

​

    switch (hwif->chipset) {

    case ide_generic:   name = "generic";   break;

    case ide_pci:       name = "pci";       break;

    case ide_cmd640:    name = "cmd640";    break;

    case ide_dtc2278:   name = "dtc2278";   break;

    case ide_ali14xx:   name = "ali14xx";   break;

    case ide_qd65xx:    name = "qd65xx";    break;

    case ide_umc8672:   name = "umc8672";   break;

    case ide_ht6560b:   name = "ht6560b";   break;

    case ide_4drives:   name = "4drives";   break;

    case ide_pmac:      name = "mac-io";    break;

    case ide_au1xxx:    name = "au1xxx";    break;

    case ide_palm3710:      name = "palm3710";      break;

    case ide_acorn:     name = "acorn";     break;

    default:        name = "(unknown)"; break;

    }

    seq_printf(m, "%s\n", name);

    return 0;

}

​

static int ide_mate_proc_show(struct seq_file *m, void *v)

{

    ide_hwif_t  *hwif = (ide_hwif_t *) m->private;

​

    if (hwif && hwif->mate)

        seq_printf(m, "%s\n", hwif->mate->name);

    else

        seq_printf(m, "(none)\n");

    return 0;

}

​

static int ide_channel_proc_show(struct seq_file *m, void *v)

{

    ide_hwif_t  *hwif = (ide_hwif_t *) m->private;

​

    seq_printf(m, "%c\n", hwif->channel ? '1' : '0');

    return 0;

}

​

static int ide_identify_proc_show(struct seq_file *m, void *v)

{

    ide_drive_t *drive = (ide_drive_t *)m->private;

    u8 *buf;

​

    if (!drive) {

        seq_putc(m, '\n');

        return 0;

    }

​

    buf = kmalloc(SECTOR_SIZE, GFP_KERNEL);

    if (!buf)

        return -ENOMEM;

    if (taskfile_lib_get_identify(drive, buf) == 0) {

        __le16 *val = (__le16 *)buf;