2005-04-17 00:20:36 +02:00
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/*
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2008-02-01 23:09:33 +01:00
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* IDE ATAPI floppy driver.
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*
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2008-02-01 23:09:33 +01:00
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* Copyright (C) 1996-1999 Gadi Oxman <gadio@netvision.net.il>
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* Copyright (C) 2000-2002 Paul Bristow <paul@paulbristow.net>
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* Copyright (C) 2005 Bartlomiej Zolnierkiewicz
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2008-02-02 19:56:38 +01:00
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*
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2005-04-17 00:20:36 +02:00
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* This driver supports the following IDE floppy drives:
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*
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* LS-120/240 SuperDisk
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* Iomega Zip 100/250
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* Iomega PC Card Clik!/PocketZip
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*
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2008-02-01 23:09:33 +01:00
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* For a historical changelog see
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* Documentation/ide/ChangeLog.ide-floppy.1996-2002
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2005-04-17 00:20:36 +02:00
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*/
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2008-10-10 22:39:34 +02:00
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#define DRV_NAME "ide-floppy"
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2008-10-13 21:39:35 +02:00
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#define PFX DRV_NAME ": "
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2008-10-10 22:39:34 +02:00
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2008-02-02 19:56:38 +01:00
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#define IDEFLOPPY_VERSION "1.00"
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2005-04-17 00:20:36 +02:00
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/timer.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/major.h>
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#include <linux/errno.h>
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#include <linux/genhd.h>
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#include <linux/slab.h>
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#include <linux/cdrom.h>
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#include <linux/ide.h>
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2008-10-10 22:39:27 +02:00
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#include <linux/hdreg.h>
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2005-04-17 00:20:36 +02:00
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#include <linux/bitops.h>
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2006-03-23 12:00:45 +01:00
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#include <linux/mutex.h>
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2008-10-10 22:39:35 +02:00
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#include <linux/scatterlist.h>
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2005-04-17 00:20:36 +02:00
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2007-07-20 01:11:59 +02:00
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#include <scsi/scsi_ioctl.h>
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2005-04-17 00:20:36 +02:00
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#include <asm/byteorder.h>
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2008-02-02 19:56:34 +01:00
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#include <linux/irq.h>
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#include <linux/uaccess.h>
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#include <linux/io.h>
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2005-04-17 00:20:36 +02:00
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#include <asm/unaligned.h>
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2008-10-10 22:39:38 +02:00
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#include "ide-floppy.h"
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2008-10-13 21:39:35 +02:00
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/* module parameters */
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static unsigned long debug_mask;
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module_param(debug_mask, ulong, 0644);
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2008-02-02 19:56:36 +01:00
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/* define to see debug info */
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2008-10-13 21:39:35 +02:00
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#define IDEFLOPPY_DEBUG_LOG 0
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2005-04-17 00:20:36 +02:00
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#if IDEFLOPPY_DEBUG_LOG
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2008-10-13 21:39:35 +02:00
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#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
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2005-04-17 00:20:36 +02:00
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#else
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2008-10-13 21:39:35 +02:00
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#define ide_debug_log(lvl, fmt, args...) do {} while (0)
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2005-04-17 00:20:36 +02:00
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#endif
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/*
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2008-02-02 19:56:38 +01:00
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* After each failed packet command we issue a request sense command and retry
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* the packet command IDEFLOPPY_MAX_PC_RETRIES times.
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2005-04-17 00:20:36 +02:00
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*/
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#define IDEFLOPPY_MAX_PC_RETRIES 3
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2008-02-02 19:56:35 +01:00
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/* format capacities descriptor codes */
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2005-04-17 00:20:36 +02:00
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#define CAPACITY_INVALID 0x00
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#define CAPACITY_UNFORMATTED 0x01
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#define CAPACITY_CURRENT 0x02
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#define CAPACITY_NO_CARTRIDGE 0x03
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2008-10-13 21:39:32 +02:00
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/*
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* The following delay solves a problem with ATAPI Zip 100 drive where BSY bit
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* was apparently being deasserted before the unit was ready to receive data.
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*/
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#define IDEFLOPPY_PC_DELAY (HZ/20) /* default delay for ZIP 100 (50ms) */
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2005-04-17 00:20:36 +02:00
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2008-02-02 19:56:38 +01:00
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/* Error code returned in rq->errors to the higher part of the driver. */
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2005-04-17 00:20:36 +02:00
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#define IDEFLOPPY_ERROR_GENERAL 101
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2006-03-23 12:00:45 +01:00
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static DEFINE_MUTEX(idefloppy_ref_mutex);
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2005-04-17 00:20:36 +02:00
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2008-07-24 22:53:15 +02:00
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static void idefloppy_cleanup_obj(struct kref *);
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2005-04-17 00:20:36 +02:00
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static struct ide_floppy_obj *ide_floppy_get(struct gendisk *disk)
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{
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struct ide_floppy_obj *floppy = NULL;
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2006-03-23 12:00:45 +01:00
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mutex_lock(&idefloppy_ref_mutex);
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2008-10-13 21:39:34 +02:00
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floppy = ide_drv_g(disk, ide_floppy_obj);
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2008-07-24 22:53:15 +02:00
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if (floppy) {
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2008-08-05 18:16:59 +02:00
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if (ide_device_get(floppy->drive))
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2008-07-24 22:53:15 +02:00
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floppy = NULL;
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2008-08-05 18:16:59 +02:00
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else
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kref_get(&floppy->kref);
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2008-07-24 22:53:15 +02:00
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}
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2006-03-23 12:00:45 +01:00
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mutex_unlock(&idefloppy_ref_mutex);
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2005-04-17 00:20:36 +02:00
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return floppy;
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}
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static void ide_floppy_put(struct ide_floppy_obj *floppy)
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{
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2008-08-05 18:16:59 +02:00
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ide_drive_t *drive = floppy->drive;
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2006-03-23 12:00:45 +01:00
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mutex_lock(&idefloppy_ref_mutex);
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2008-02-02 19:56:33 +01:00
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kref_put(&floppy->kref, idefloppy_cleanup_obj);
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2008-08-05 18:16:59 +02:00
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ide_device_put(drive);
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2006-03-23 12:00:45 +01:00
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mutex_unlock(&idefloppy_ref_mutex);
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2005-04-17 00:20:36 +02:00
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}
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/*
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2008-02-02 19:56:38 +01:00
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* Used to finish servicing a request. For read/write requests, we will call
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* ide_end_request to pass to the next buffer.
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2005-04-17 00:20:36 +02:00
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*/
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2008-04-18 00:46:27 +02:00
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static int idefloppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
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2005-04-17 00:20:36 +02:00
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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struct request *rq = HWGROUP(drive)->rq;
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int error;
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2008-10-13 21:39:35 +02:00
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ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
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2005-04-17 00:20:36 +02:00
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switch (uptodate) {
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2008-10-13 21:39:35 +02:00
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case 0:
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error = IDEFLOPPY_ERROR_GENERAL;
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break;
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case 1:
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error = 0;
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break;
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default:
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error = uptodate;
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2005-04-17 00:20:36 +02:00
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}
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2008-10-13 21:39:35 +02:00
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2005-04-17 00:20:36 +02:00
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if (error)
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floppy->failed_pc = NULL;
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/* Why does this happen? */
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if (!rq)
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return 0;
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2006-08-10 08:44:47 +02:00
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if (!blk_special_request(rq)) {
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2005-04-17 00:20:36 +02:00
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/* our real local end request function */
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ide_end_request(drive, uptodate, nsecs);
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return 0;
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}
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rq->errors = error;
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/* fixme: need to move this local also */
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ide_end_drive_cmd(drive, 0, 0);
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return 0;
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}
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2008-04-18 00:46:27 +02:00
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static void idefloppy_update_buffers(ide_drive_t *drive,
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struct ide_atapi_pc *pc)
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2005-04-17 00:20:36 +02:00
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{
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struct request *rq = pc->rq;
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struct bio *bio = rq->bio;
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while ((bio = rq->bio) != NULL)
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2008-04-18 00:46:27 +02:00
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idefloppy_end_request(drive, 1, 0);
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2005-04-17 00:20:36 +02:00
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}
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2008-10-13 21:39:30 +02:00
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static void ide_floppy_callback(ide_drive_t *drive, int dsc)
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2005-04-17 00:20:36 +02:00
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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2008-10-13 21:39:31 +02:00
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struct ide_atapi_pc *pc = drive->pc;
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2008-07-15 21:21:56 +02:00
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int uptodate = pc->error ? 0 : 1;
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2005-04-17 00:20:36 +02:00
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2008-10-13 21:39:35 +02:00
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ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
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2008-02-02 19:56:34 +01:00
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2008-07-15 21:22:01 +02:00
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if (floppy->failed_pc == pc)
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floppy->failed_pc = NULL;
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2008-07-15 21:21:56 +02:00
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if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 ||
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(pc->rq && blk_pc_request(pc->rq)))
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uptodate = 1; /* FIXME */
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else if (pc->c[0] == GPCMD_REQUEST_SENSE) {
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2008-10-13 21:39:31 +02:00
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u8 *buf = pc->buf;
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2008-02-02 19:56:34 +01:00
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2008-07-15 21:21:56 +02:00
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if (!pc->error) {
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floppy->sense_key = buf[2] & 0x0F;
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floppy->asc = buf[12];
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floppy->ascq = buf[13];
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floppy->progress_indication = buf[15] & 0x80 ?
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(u16)get_unaligned((u16 *)&buf[16]) : 0x10000;
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2008-02-02 19:56:34 +01:00
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2008-07-15 21:21:56 +02:00
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if (floppy->failed_pc)
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2008-10-13 21:39:35 +02:00
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ide_debug_log(IDE_DBG_PC, "pc = %x, ",
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floppy->failed_pc->c[0]);
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2008-02-02 19:56:34 +01:00
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2008-10-13 21:39:35 +02:00
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ide_debug_log(IDE_DBG_SENSE, "sense key = %x, asc = %x,"
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"ascq = %x\n", floppy->sense_key,
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floppy->asc, floppy->ascq);
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2008-07-15 21:21:56 +02:00
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} else
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2008-10-13 21:39:35 +02:00
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printk(KERN_ERR PFX "Error in REQUEST SENSE itself - "
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"Aborting request!\n");
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2008-07-15 21:21:56 +02:00
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}
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2005-04-17 00:20:36 +02:00
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2008-07-15 21:21:56 +02:00
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idefloppy_end_request(drive, uptodate, 0);
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2005-04-17 00:20:36 +02:00
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}
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2008-02-02 19:56:35 +01:00
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static void ide_floppy_report_error(idefloppy_floppy_t *floppy,
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2008-04-18 00:46:27 +02:00
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struct ide_atapi_pc *pc)
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2005-04-17 00:20:36 +02:00
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{
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2008-02-02 19:56:35 +01:00
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/* supress error messages resulting from Medium not present */
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2005-04-17 00:20:36 +02:00
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if (floppy->sense_key == 0x02 &&
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floppy->asc == 0x3a &&
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floppy->ascq == 0x00)
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2008-02-02 19:56:35 +01:00
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return;
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2008-10-13 21:39:35 +02:00
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printk(KERN_ERR PFX "%s: I/O error, pc = %2x, key = %2x, "
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2008-02-02 19:56:35 +01:00
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"asc = %2x, ascq = %2x\n",
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floppy->drive->name, pc->c[0], floppy->sense_key,
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floppy->asc, floppy->ascq);
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2005-04-17 00:20:36 +02:00
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}
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2008-02-02 19:56:38 +01:00
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static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
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2008-04-18 00:46:27 +02:00
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struct ide_atapi_pc *pc)
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2005-04-17 00:20:36 +02:00
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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if (floppy->failed_pc == NULL &&
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2008-02-02 19:56:33 +01:00
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pc->c[0] != GPCMD_REQUEST_SENSE)
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2005-04-17 00:20:36 +02:00
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floppy->failed_pc = pc;
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2008-10-13 21:39:31 +02:00
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2005-04-17 00:20:36 +02:00
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/* Set the current packet command */
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2008-10-13 21:39:31 +02:00
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drive->pc = pc;
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2005-04-17 00:20:36 +02:00
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2008-02-02 19:56:37 +01:00
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if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) {
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2008-02-02 19:56:37 +01:00
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if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR))
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2008-02-02 19:56:37 +01:00
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ide_floppy_report_error(floppy, pc);
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/* Giving up */
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pc->error = IDEFLOPPY_ERROR_GENERAL;
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2005-04-17 00:20:36 +02:00
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floppy->failed_pc = NULL;
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2008-10-13 21:39:30 +02:00
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drive->pc_callback(drive, 0);
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2005-04-17 00:20:36 +02:00
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return ide_stopped;
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}
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2008-10-13 21:39:35 +02:00
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ide_debug_log(IDE_DBG_FUNC, "%s: Retry #%d\n", __func__, pc->retries);
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2005-04-17 00:20:36 +02:00
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pc->retries++;
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2008-10-13 21:39:32 +02:00
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return ide_issue_pc(drive, WAIT_FLOPPY_CMD, NULL);
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2005-04-17 00:20:36 +02:00
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}
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2008-10-10 22:39:38 +02:00
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void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *pc)
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2005-04-17 00:20:36 +02:00
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{
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2008-10-10 22:39:37 +02:00
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ide_init_pc(pc);
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2008-02-02 19:56:33 +01:00
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pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES;
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2005-04-17 00:20:36 +02:00
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pc->c[7] = 255;
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pc->c[8] = 255;
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2008-04-18 00:46:27 +02:00
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pc->req_xfer = 255;
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2005-04-17 00:20:36 +02:00
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}
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2008-02-02 19:56:38 +01:00
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/* A mode sense command is used to "sense" floppy parameters. */
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2008-10-10 22:39:38 +02:00
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void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code)
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2005-04-17 00:20:36 +02:00
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{
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2008-02-02 19:56:34 +01:00
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u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */
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2008-02-02 19:56:38 +01:00
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2008-10-10 22:39:37 +02:00
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ide_init_pc(pc);
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2008-02-02 19:56:33 +01:00
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pc->c[0] = GPCMD_MODE_SENSE_10;
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2005-04-17 00:20:36 +02:00
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pc->c[1] = 0;
|
2008-10-10 22:39:36 +02:00
|
|
|
pc->c[2] = page_code;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
switch (page_code) {
|
2008-02-02 19:56:38 +01:00
|
|
|
case IDEFLOPPY_CAPABILITIES_PAGE:
|
|
|
|
length += 12;
|
|
|
|
break;
|
|
|
|
case IDEFLOPPY_FLEXIBLE_DISK_PAGE:
|
|
|
|
length += 32;
|
|
|
|
break;
|
|
|
|
default:
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_ERR PFX "unsupported page code in %s\n", __func__);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
2008-02-02 19:56:33 +01:00
|
|
|
put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]);
|
2008-04-18 00:46:27 +02:00
|
|
|
pc->req_xfer = length;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-10-13 21:39:35 +02:00
|
|
|
static void idefloppy_create_rw_cmd(ide_drive_t *drive,
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc *pc, struct request *rq,
|
2008-02-02 19:56:36 +01:00
|
|
|
unsigned long sector)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-10-13 21:39:35 +02:00
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
2005-04-17 00:20:36 +02:00
|
|
|
int block = sector / floppy->bs_factor;
|
|
|
|
int blocks = rq->nr_sectors / floppy->bs_factor;
|
|
|
|
int cmd = rq_data_dir(rq);
|
|
|
|
|
2008-10-13 21:39:35 +02:00
|
|
|
ide_debug_log(IDE_DBG_FUNC, "%s: block: %d, blocks: %d\n", __func__,
|
|
|
|
block, blocks);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-10-10 22:39:37 +02:00
|
|
|
ide_init_pc(pc);
|
2008-02-02 19:56:36 +01:00
|
|
|
pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10;
|
|
|
|
put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]);
|
2008-02-02 19:56:33 +01:00
|
|
|
put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]);
|
2008-02-02 19:56:36 +01:00
|
|
|
|
2008-07-23 19:56:00 +02:00
|
|
|
memcpy(rq->cmd, pc->c, 12);
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
pc->rq = rq;
|
2008-10-10 22:39:35 +02:00
|
|
|
pc->b_count = 0;
|
2006-08-10 08:44:47 +02:00
|
|
|
if (rq->cmd_flags & REQ_RW)
|
2008-02-02 19:56:37 +01:00
|
|
|
pc->flags |= PC_FLAG_WRITING;
|
2008-04-18 00:46:27 +02:00
|
|
|
pc->buf = NULL;
|
|
|
|
pc->req_xfer = pc->buf_size = blocks * floppy->block_size;
|
2008-07-15 21:21:56 +02:00
|
|
|
pc->flags |= PC_FLAG_DMA_OK;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy,
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc *pc, struct request *rq)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-10-10 22:39:37 +02:00
|
|
|
ide_init_pc(pc);
|
2005-04-17 00:20:36 +02:00
|
|
|
memcpy(pc->c, rq->cmd, sizeof(pc->c));
|
2007-07-09 12:38:05 +02:00
|
|
|
pc->rq = rq;
|
2008-10-10 22:39:35 +02:00
|
|
|
pc->b_count = 0;
|
2007-07-09 12:38:05 +02:00
|
|
|
if (rq->data_len && rq_data_dir(rq) == WRITE)
|
2008-02-02 19:56:37 +01:00
|
|
|
pc->flags |= PC_FLAG_WRITING;
|
2008-04-18 00:46:27 +02:00
|
|
|
pc->buf = rq->data;
|
2007-07-09 12:38:05 +02:00
|
|
|
if (rq->bio)
|
2008-07-15 21:21:56 +02:00
|
|
|
pc->flags |= PC_FLAG_DMA_OK;
|
2007-07-09 12:38:05 +02:00
|
|
|
/*
|
|
|
|
* possibly problematic, doesn't look like ide-floppy correctly
|
|
|
|
* handled scattered requests if dma fails...
|
|
|
|
*/
|
2008-04-18 00:46:27 +02:00
|
|
|
pc->req_xfer = pc->buf_size = rq->data_len;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
static ide_startstop_t idefloppy_do_request(ide_drive_t *drive,
|
|
|
|
struct request *rq, sector_t block_s)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
2008-10-10 22:39:35 +02:00
|
|
|
ide_hwif_t *hwif = drive->hwif;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc *pc;
|
2005-04-17 00:20:36 +02:00
|
|
|
unsigned long block = (unsigned long)block_s;
|
|
|
|
|
2008-10-13 21:39:35 +02:00
|
|
|
ide_debug_log(IDE_DBG_FUNC, "%s: dev: %s, cmd: 0x%x, cmd_type: %x, "
|
|
|
|
"errors: %d\n",
|
|
|
|
__func__, rq->rq_disk ? rq->rq_disk->disk_name : "?",
|
|
|
|
rq->cmd[0], rq->cmd_type, rq->errors);
|
2008-10-10 22:39:35 +02:00
|
|
|
|
2008-10-13 21:39:35 +02:00
|
|
|
ide_debug_log(IDE_DBG_FUNC, "%s: sector: %ld, nr_sectors: %ld, "
|
|
|
|
"current_nr_sectors: %d\n",
|
|
|
|
__func__, (long)rq->sector, rq->nr_sectors,
|
|
|
|
rq->current_nr_sectors);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
if (rq->errors >= ERROR_MAX) {
|
2008-02-02 19:56:35 +01:00
|
|
|
if (floppy->failed_pc)
|
|
|
|
ide_floppy_report_error(floppy, floppy->failed_pc);
|
2005-04-17 00:20:36 +02:00
|
|
|
else
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_ERR PFX "%s: I/O error\n", drive->name);
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
idefloppy_end_request(drive, 0, 0);
|
2005-04-17 00:20:36 +02:00
|
|
|
return ide_stopped;
|
|
|
|
}
|
2006-08-10 08:44:47 +02:00
|
|
|
if (blk_fs_request(rq)) {
|
2005-04-17 00:20:36 +02:00
|
|
|
if (((long)rq->sector % floppy->bs_factor) ||
|
|
|
|
(rq->nr_sectors % floppy->bs_factor)) {
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_ERR PFX "%s: unsupported r/w rq size\n",
|
|
|
|
drive->name);
|
2008-04-18 00:46:27 +02:00
|
|
|
idefloppy_end_request(drive, 0, 0);
|
2005-04-17 00:20:36 +02:00
|
|
|
return ide_stopped;
|
|
|
|
}
|
2008-10-10 22:39:36 +02:00
|
|
|
pc = &floppy->queued_pc;
|
2008-10-13 21:39:35 +02:00
|
|
|
idefloppy_create_rw_cmd(drive, pc, rq, block);
|
2006-08-10 08:44:47 +02:00
|
|
|
} else if (blk_special_request(rq)) {
|
2008-04-18 00:46:27 +02:00
|
|
|
pc = (struct ide_atapi_pc *) rq->buffer;
|
2006-08-10 08:44:47 +02:00
|
|
|
} else if (blk_pc_request(rq)) {
|
2008-10-10 22:39:36 +02:00
|
|
|
pc = &floppy->queued_pc;
|
2007-07-09 12:38:05 +02:00
|
|
|
idefloppy_blockpc_cmd(floppy, pc, rq);
|
2005-04-17 00:20:36 +02:00
|
|
|
} else {
|
2008-10-13 21:39:35 +02:00
|
|
|
blk_dump_rq_flags(rq, PFX "unsupported command in queue");
|
2008-04-18 00:46:27 +02:00
|
|
|
idefloppy_end_request(drive, 0, 0);
|
2005-04-17 00:20:36 +02:00
|
|
|
return ide_stopped;
|
|
|
|
}
|
|
|
|
|
2008-10-10 22:39:35 +02:00
|
|
|
ide_init_sg_cmd(drive, rq);
|
|
|
|
ide_map_sg(drive, rq);
|
|
|
|
|
|
|
|
pc->sg = hwif->sg_table;
|
|
|
|
pc->sg_cnt = hwif->sg_nents;
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
pc->rq = rq;
|
2008-07-15 21:21:57 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
return idefloppy_issue_pc(drive, pc);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2008-02-02 19:56:35 +01:00
|
|
|
* Look at the flexible disk page parameters. We ignore the CHS capacity
|
|
|
|
* parameters and use the LBA parameters instead.
|
2005-04-17 00:20:36 +02:00
|
|
|
*/
|
2008-02-02 19:56:35 +01:00
|
|
|
static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
2008-10-10 22:39:38 +02:00
|
|
|
struct gendisk *disk = floppy->disk;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc pc;
|
2008-02-02 19:56:35 +01:00
|
|
|
u8 *page;
|
2005-04-17 00:20:36 +02:00
|
|
|
int capacity, lba_capacity;
|
2008-02-02 19:56:35 +01:00
|
|
|
u16 transfer_rate, sector_size, cyls, rpm;
|
|
|
|
u8 heads, sectors;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-10-10 22:39:38 +02:00
|
|
|
ide_floppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE);
|
2008-02-02 19:56:35 +01:00
|
|
|
|
2008-10-10 22:39:38 +02:00
|
|
|
if (ide_queue_pc_tail(drive, disk, &pc)) {
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_ERR PFX "Can't get flexible disk page params\n");
|
2005-04-17 00:20:36 +02:00
|
|
|
return 1;
|
|
|
|
}
|
2008-10-10 22:39:38 +02:00
|
|
|
|
|
|
|
if (pc.buf[3] & 0x80)
|
|
|
|
drive->atapi_flags |= IDE_AFLAG_WP;
|
|
|
|
else
|
|
|
|
drive->atapi_flags &= ~IDE_AFLAG_WP;
|
|
|
|
|
|
|
|
set_disk_ro(disk, !!(drive->atapi_flags & IDE_AFLAG_WP));
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
page = &pc.buf[8];
|
2008-02-02 19:56:35 +01:00
|
|
|
|
2008-07-16 20:33:47 +02:00
|
|
|
transfer_rate = be16_to_cpup((__be16 *)&pc.buf[8 + 2]);
|
|
|
|
sector_size = be16_to_cpup((__be16 *)&pc.buf[8 + 6]);
|
|
|
|
cyls = be16_to_cpup((__be16 *)&pc.buf[8 + 8]);
|
|
|
|
rpm = be16_to_cpup((__be16 *)&pc.buf[8 + 28]);
|
2008-04-18 00:46:27 +02:00
|
|
|
heads = pc.buf[8 + 4];
|
|
|
|
sectors = pc.buf[8 + 5];
|
2008-02-02 19:56:35 +01:00
|
|
|
|
|
|
|
capacity = cyls * heads * sectors * sector_size;
|
|
|
|
|
|
|
|
if (memcmp(page, &floppy->flexible_disk_page, 32))
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_INFO PFX "%s: %dkB, %d/%d/%d CHS, %d kBps, "
|
2005-04-17 00:20:36 +02:00
|
|
|
"%d sector size, %d rpm\n",
|
2008-02-02 19:56:35 +01:00
|
|
|
drive->name, capacity / 1024, cyls, heads,
|
|
|
|
sectors, transfer_rate / 8, sector_size, rpm);
|
|
|
|
|
|
|
|
memcpy(&floppy->flexible_disk_page, page, 32);
|
|
|
|
drive->bios_cyl = cyls;
|
|
|
|
drive->bios_head = heads;
|
|
|
|
drive->bios_sect = sectors;
|
2005-04-17 00:20:36 +02:00
|
|
|
lba_capacity = floppy->blocks * floppy->block_size;
|
2008-02-02 19:56:35 +01:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
if (capacity < lba_capacity) {
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_NOTICE PFX "%s: The disk reports a capacity of %d "
|
2005-04-17 00:20:36 +02:00
|
|
|
"bytes, but the drive only handles %d\n",
|
|
|
|
drive->name, lba_capacity, capacity);
|
2008-02-02 19:56:35 +01:00
|
|
|
floppy->blocks = floppy->block_size ?
|
|
|
|
capacity / floppy->block_size : 0;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2008-02-02 19:56:35 +01:00
|
|
|
* Determine if a media is present in the floppy drive, and if so, its LBA
|
|
|
|
* capacity.
|
2005-04-17 00:20:36 +02:00
|
|
|
*/
|
2008-02-02 19:56:35 +01:00
|
|
|
static int ide_floppy_get_capacity(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
2008-10-10 22:39:38 +02:00
|
|
|
struct gendisk *disk = floppy->disk;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc pc;
|
2008-02-02 19:56:35 +01:00
|
|
|
u8 *cap_desc;
|
|
|
|
u8 header_len, desc_cnt;
|
|
|
|
int i, rc = 1, blocks, length;
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
drive->bios_cyl = 0;
|
|
|
|
drive->bios_head = drive->bios_sect = 0;
|
2007-02-17 02:40:20 +01:00
|
|
|
floppy->blocks = 0;
|
|
|
|
floppy->bs_factor = 1;
|
2005-04-17 00:20:36 +02:00
|
|
|
set_capacity(floppy->disk, 0);
|
|
|
|
|
2008-10-10 22:39:38 +02:00
|
|
|
ide_floppy_create_read_capacity_cmd(&pc);
|
2008-10-10 22:39:38 +02:00
|
|
|
if (ide_queue_pc_tail(drive, disk, &pc)) {
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_ERR PFX "Can't get floppy parameters\n");
|
2005-04-17 00:20:36 +02:00
|
|
|
return 1;
|
|
|
|
}
|
2008-04-18 00:46:27 +02:00
|
|
|
header_len = pc.buf[3];
|
|
|
|
cap_desc = &pc.buf[4];
|
2008-02-02 19:56:35 +01:00
|
|
|
desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */
|
|
|
|
|
|
|
|
for (i = 0; i < desc_cnt; i++) {
|
|
|
|
unsigned int desc_start = 4 + i*8;
|
|
|
|
|
2008-07-16 20:33:47 +02:00
|
|
|
blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]);
|
|
|
|
length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]);
|
2008-02-02 19:56:35 +01:00
|
|
|
|
2008-10-13 21:39:35 +02:00
|
|
|
ide_debug_log(IDE_DBG_PROBE, "Descriptor %d: %dkB, %d blocks, "
|
|
|
|
"%d sector size\n",
|
|
|
|
i, blocks * length / 1024, blocks, length);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-02-02 19:56:35 +01:00
|
|
|
if (i)
|
|
|
|
continue;
|
|
|
|
/*
|
|
|
|
* the code below is valid only for the 1st descriptor, ie i=0
|
|
|
|
*/
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
switch (pc.buf[desc_start + 4] & 0x03) {
|
2005-04-17 00:20:36 +02:00
|
|
|
/* Clik! drive returns this instead of CAPACITY_CURRENT */
|
|
|
|
case CAPACITY_UNFORMATTED:
|
2008-07-23 19:56:01 +02:00
|
|
|
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE))
|
2008-02-02 19:56:38 +01:00
|
|
|
/*
|
2005-04-17 00:20:36 +02:00
|
|
|
* If it is not a clik drive, break out
|
|
|
|
* (maintains previous driver behaviour)
|
|
|
|
*/
|
|
|
|
break;
|
|
|
|
case CAPACITY_CURRENT:
|
|
|
|
/* Normal Zip/LS-120 disks */
|
2008-02-02 19:56:35 +01:00
|
|
|
if (memcmp(cap_desc, &floppy->cap_desc, 8))
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_INFO PFX "%s: %dkB, %d blocks, %d "
|
|
|
|
"sector size\n",
|
|
|
|
drive->name, blocks * length / 1024,
|
|
|
|
blocks, length);
|
2008-02-02 19:56:35 +01:00
|
|
|
memcpy(&floppy->cap_desc, cap_desc, 8);
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
if (!length || length % 512) {
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_NOTICE PFX "%s: %d bytes block size"
|
|
|
|
" not supported\n", drive->name, length);
|
2005-04-17 00:20:36 +02:00
|
|
|
} else {
|
2008-02-02 19:56:35 +01:00
|
|
|
floppy->blocks = blocks;
|
|
|
|
floppy->block_size = length;
|
|
|
|
floppy->bs_factor = length / 512;
|
|
|
|
if (floppy->bs_factor != 1)
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_NOTICE PFX "%s: Warning: "
|
|
|
|
"non 512 bytes block size not "
|
|
|
|
"fully supported\n",
|
|
|
|
drive->name);
|
2008-02-02 19:56:35 +01:00
|
|
|
rc = 0;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case CAPACITY_NO_CARTRIDGE:
|
|
|
|
/*
|
|
|
|
* This is a KERN_ERR so it appears on screen
|
|
|
|
* for the user to see
|
|
|
|
*/
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_ERR PFX "%s: No disk in drive\n",
|
|
|
|
drive->name);
|
2005-04-17 00:20:36 +02:00
|
|
|
break;
|
|
|
|
case CAPACITY_INVALID:
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_ERR PFX "%s: Invalid capacity for disk "
|
2005-04-17 00:20:36 +02:00
|
|
|
"in drive\n", drive->name);
|
|
|
|
break;
|
|
|
|
}
|
2008-10-13 21:39:35 +02:00
|
|
|
ide_debug_log(IDE_DBG_PROBE, "Descriptor 0 Code: %d\n",
|
|
|
|
pc.buf[desc_start + 4] & 0x03);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Clik! disk does not support get_flexible_disk_page */
|
2008-07-23 19:56:01 +02:00
|
|
|
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE))
|
2008-02-02 19:56:35 +01:00
|
|
|
(void) ide_floppy_get_flexible_disk_page(drive);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-10-10 22:39:38 +02:00
|
|
|
set_capacity(disk, floppy->blocks * floppy->bs_factor);
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2008-10-13 21:39:44 +02:00
|
|
|
sector_t ide_floppy_capacity(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
|
|
|
unsigned long capacity = floppy->blocks * floppy->bs_factor;
|
|
|
|
|
|
|
|
return capacity;
|
|
|
|
}
|
|
|
|
|
2008-10-17 18:09:10 +02:00
|
|
|
static void idefloppy_setup(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-10-17 18:09:10 +02:00
|
|
|
struct ide_floppy_obj *floppy = drive->driver_data;
|
2008-10-10 22:39:19 +02:00
|
|
|
u16 *id = drive->id;
|
2008-10-10 22:39:36 +02:00
|
|
|
|
2008-10-13 21:39:32 +02:00
|
|
|
drive->pc_callback = ide_floppy_callback;
|
|
|
|
drive->pc_update_buffers = idefloppy_update_buffers;
|
|
|
|
drive->pc_io_buffers = ide_io_buffers;
|
2008-04-18 00:46:25 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/*
|
2008-02-02 19:56:38 +01:00
|
|
|
* We used to check revisions here. At this point however I'm giving up.
|
|
|
|
* Just assume they are all broken, its easier.
|
2005-04-17 00:20:36 +02:00
|
|
|
*
|
2008-02-02 19:56:38 +01:00
|
|
|
* The actual reason for the workarounds was likely a driver bug after
|
|
|
|
* all rather than a firmware bug, and the workaround below used to hide
|
|
|
|
* it. It should be fixed as of version 1.9, but to be on the safe side
|
|
|
|
* we'll leave the limitation below for the 2.2.x tree.
|
2005-04-17 00:20:36 +02:00
|
|
|
*/
|
2008-10-10 22:39:19 +02:00
|
|
|
if (!strncmp((char *)&id[ATA_ID_PROD], "IOMEGA ZIP 100 ATAPI", 20)) {
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE;
|
2005-04-17 00:20:36 +02:00
|
|
|
/* This value will be visible in the /proc/ide/hdx/settings */
|
2008-10-13 21:39:32 +02:00
|
|
|
drive->pc_delay = IDEFLOPPY_PC_DELAY;
|
2005-04-17 00:20:36 +02:00
|
|
|
blk_queue_max_sectors(drive->queue, 64);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2008-02-02 19:56:38 +01:00
|
|
|
* Guess what? The IOMEGA Clik! drive also needs the above fix. It makes
|
|
|
|
* nasty clicking noises without it, so please don't remove this.
|
|
|
|
*/
|
2008-10-10 22:39:19 +02:00
|
|
|
if (strncmp((char *)&id[ATA_ID_PROD], "IOMEGA Clik!", 11) == 0) {
|
2005-04-17 00:20:36 +02:00
|
|
|
blk_queue_max_sectors(drive->queue, 64);
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE;
|
2008-10-10 22:39:38 +02:00
|
|
|
/* IOMEGA Clik! drives do not support lock/unlock commands */
|
|
|
|
drive->atapi_flags |= IDE_AFLAG_NO_DOORLOCK;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:35 +01:00
|
|
|
(void) ide_floppy_get_capacity(drive);
|
2008-10-10 22:39:27 +02:00
|
|
|
|
|
|
|
ide_proc_register_driver(drive, floppy->driver);
|
2008-10-17 18:09:10 +02:00
|
|
|
|
|
|
|
drive->dev_flags |= IDE_DFLAG_ATTACH;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2006-01-06 12:41:00 +01:00
|
|
|
static void ide_floppy_remove(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
|
|
|
struct gendisk *g = floppy->disk;
|
|
|
|
|
2007-05-10 00:01:10 +02:00
|
|
|
ide_proc_unregister_driver(drive, floppy->driver);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
del_gendisk(g);
|
|
|
|
|
|
|
|
ide_floppy_put(floppy);
|
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:33 +01:00
|
|
|
static void idefloppy_cleanup_obj(struct kref *kref)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-10-13 21:39:34 +02:00
|
|
|
struct ide_floppy_obj *floppy = to_ide_drv(kref, ide_floppy_obj);
|
2005-04-17 00:20:36 +02:00
|
|
|
ide_drive_t *drive = floppy->drive;
|
|
|
|
struct gendisk *g = floppy->disk;
|
|
|
|
|
|
|
|
drive->driver_data = NULL;
|
|
|
|
g->private_data = NULL;
|
|
|
|
put_disk(g);
|
|
|
|
kfree(floppy);
|
|
|
|
}
|
|
|
|
|
2006-01-06 12:41:00 +01:00
|
|
|
static int ide_floppy_probe(ide_drive_t *);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
static ide_driver_t idefloppy_driver = {
|
2005-05-26 14:55:34 +02:00
|
|
|
.gen_driver = {
|
2005-11-18 22:15:40 +01:00
|
|
|
.owner = THIS_MODULE,
|
2005-05-26 14:55:34 +02:00
|
|
|
.name = "ide-floppy",
|
|
|
|
.bus = &ide_bus_type,
|
|
|
|
},
|
2006-01-06 12:41:00 +01:00
|
|
|
.probe = ide_floppy_probe,
|
|
|
|
.remove = ide_floppy_remove,
|
2005-04-17 00:20:36 +02:00
|
|
|
.version = IDEFLOPPY_VERSION,
|
|
|
|
.do_request = idefloppy_do_request,
|
2008-04-18 00:46:27 +02:00
|
|
|
.end_request = idefloppy_end_request,
|
2005-04-17 00:20:36 +02:00
|
|
|
.error = __ide_error,
|
2007-05-10 00:01:10 +02:00
|
|
|
#ifdef CONFIG_IDE_PROC_FS
|
2008-10-13 21:39:44 +02:00
|
|
|
.proc = ide_floppy_proc,
|
|
|
|
.settings = ide_floppy_settings,
|
2007-05-10 00:01:10 +02:00
|
|
|
#endif
|
2005-04-17 00:20:36 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
static int idefloppy_open(struct inode *inode, struct file *filp)
|
|
|
|
{
|
|
|
|
struct gendisk *disk = inode->i_bdev->bd_disk;
|
|
|
|
struct ide_floppy_obj *floppy;
|
|
|
|
ide_drive_t *drive;
|
|
|
|
int ret = 0;
|
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
floppy = ide_floppy_get(disk);
|
|
|
|
if (!floppy)
|
2005-04-17 00:20:36 +02:00
|
|
|
return -ENXIO;
|
|
|
|
|
|
|
|
drive = floppy->drive;
|
|
|
|
|
2008-10-13 21:39:35 +02:00
|
|
|
ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
|
|
|
|
|
2007-02-17 02:40:24 +01:00
|
|
|
floppy->openers++;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2007-02-17 02:40:24 +01:00
|
|
|
if (floppy->openers == 1) {
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
|
2005-04-17 00:20:36 +02:00
|
|
|
/* Just in case */
|
|
|
|
|
2008-10-10 22:39:39 +02:00
|
|
|
if (ide_do_test_unit_ready(drive, disk))
|
2008-10-10 22:39:39 +02:00
|
|
|
ide_do_start_stop(drive, disk, 1);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-02-02 19:56:35 +01:00
|
|
|
if (ide_floppy_get_capacity(drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
&& (filp->f_flags & O_NDELAY) == 0
|
|
|
|
/*
|
2008-02-02 19:56:38 +01:00
|
|
|
* Allow O_NDELAY to open a drive without a disk, or with an
|
|
|
|
* unreadable disk, so that we can get the format capacity
|
|
|
|
* of the drive or begin the format - Sam
|
|
|
|
*/
|
2005-04-17 00:20:36 +02:00
|
|
|
) {
|
|
|
|
ret = -EIO;
|
|
|
|
goto out_put_floppy;
|
|
|
|
}
|
|
|
|
|
2008-10-10 22:39:38 +02:00
|
|
|
if ((drive->atapi_flags & IDE_AFLAG_WP) && (filp->f_mode & 2)) {
|
2005-04-17 00:20:36 +02:00
|
|
|
ret = -EROFS;
|
|
|
|
goto out_put_floppy;
|
|
|
|
}
|
2008-10-10 22:39:37 +02:00
|
|
|
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED;
|
2008-10-10 22:39:38 +02:00
|
|
|
ide_set_media_lock(drive, disk, 1);
|
2005-04-17 00:20:36 +02:00
|
|
|
check_disk_change(inode->i_bdev);
|
2008-07-23 19:56:01 +02:00
|
|
|
} else if (drive->atapi_flags & IDE_AFLAG_FORMAT_IN_PROGRESS) {
|
2005-04-17 00:20:36 +02:00
|
|
|
ret = -EBUSY;
|
|
|
|
goto out_put_floppy;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
out_put_floppy:
|
2007-02-17 02:40:24 +01:00
|
|
|
floppy->openers--;
|
2005-04-17 00:20:36 +02:00
|
|
|
ide_floppy_put(floppy);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int idefloppy_release(struct inode *inode, struct file *filp)
|
|
|
|
{
|
|
|
|
struct gendisk *disk = inode->i_bdev->bd_disk;
|
2008-10-13 21:39:34 +02:00
|
|
|
struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
|
2005-04-17 00:20:36 +02:00
|
|
|
ide_drive_t *drive = floppy->drive;
|
2008-02-02 19:56:34 +01:00
|
|
|
|
2008-10-13 21:39:35 +02:00
|
|
|
ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2007-02-17 02:40:24 +01:00
|
|
|
if (floppy->openers == 1) {
|
2008-10-10 22:39:38 +02:00
|
|
|
ide_set_media_lock(drive, disk, 0);
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
2007-02-17 02:40:24 +01:00
|
|
|
|
|
|
|
floppy->openers--;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
ide_floppy_put(floppy);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2006-01-08 10:02:50 +01:00
|
|
|
static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo)
|
|
|
|
{
|
2008-10-13 21:39:34 +02:00
|
|
|
struct ide_floppy_obj *floppy = ide_drv_g(bdev->bd_disk,
|
|
|
|
ide_floppy_obj);
|
2006-01-08 10:02:50 +01:00
|
|
|
ide_drive_t *drive = floppy->drive;
|
|
|
|
|
|
|
|
geo->heads = drive->bios_head;
|
|
|
|
geo->sectors = drive->bios_sect;
|
|
|
|
geo->cylinders = (u16)drive->bios_cyl; /* truncate */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
static int idefloppy_media_changed(struct gendisk *disk)
|
|
|
|
{
|
2008-10-13 21:39:34 +02:00
|
|
|
struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
|
2005-04-17 00:20:36 +02:00
|
|
|
ide_drive_t *drive = floppy->drive;
|
2008-02-02 19:56:37 +01:00
|
|
|
int ret;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
/* do not scan partitions twice if this is a removable device */
|
2008-10-13 21:39:36 +02:00
|
|
|
if (drive->dev_flags & IDE_DFLAG_ATTACH) {
|
|
|
|
drive->dev_flags &= ~IDE_DFLAG_ATTACH;
|
2005-04-17 00:20:36 +02:00
|
|
|
return 0;
|
|
|
|
}
|
2008-07-23 19:56:01 +02:00
|
|
|
ret = !!(drive->atapi_flags & IDE_AFLAG_MEDIA_CHANGED);
|
|
|
|
drive->atapi_flags &= ~IDE_AFLAG_MEDIA_CHANGED;
|
2008-02-02 19:56:37 +01:00
|
|
|
return ret;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static int idefloppy_revalidate_disk(struct gendisk *disk)
|
|
|
|
{
|
2008-10-13 21:39:34 +02:00
|
|
|
struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
|
2008-10-13 21:39:44 +02:00
|
|
|
set_capacity(disk, ide_floppy_capacity(floppy->drive));
|
2005-04-17 00:20:36 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct block_device_operations idefloppy_ops = {
|
2008-04-26 17:36:41 +02:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.open = idefloppy_open,
|
|
|
|
.release = idefloppy_release,
|
2008-10-13 21:39:44 +02:00
|
|
|
.ioctl = ide_floppy_ioctl,
|
2008-04-26 17:36:41 +02:00
|
|
|
.getgeo = idefloppy_getgeo,
|
|
|
|
.media_changed = idefloppy_media_changed,
|
|
|
|
.revalidate_disk = idefloppy_revalidate_disk
|
2005-04-17 00:20:36 +02:00
|
|
|
};
|
|
|
|
|
2006-01-06 12:41:00 +01:00
|
|
|
static int ide_floppy_probe(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy;
|
|
|
|
struct gendisk *g;
|
|
|
|
|
|
|
|
if (!strstr("ide-floppy", drive->driver_req))
|
|
|
|
goto failed;
|
2008-10-10 22:39:24 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
if (drive->media != ide_floppy)
|
|
|
|
goto failed;
|
2008-10-10 22:39:24 +02:00
|
|
|
|
2008-10-10 22:39:34 +02:00
|
|
|
if (!ide_check_atapi_device(drive, DRV_NAME)) {
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_ERR PFX "%s: not supported by this version of "
|
|
|
|
DRV_NAME "\n", drive->name);
|
2005-04-17 00:20:36 +02:00
|
|
|
goto failed;
|
|
|
|
}
|
2008-02-02 19:56:38 +01:00
|
|
|
floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL);
|
|
|
|
if (!floppy) {
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_ERR PFX "%s: Can't allocate a floppy structure\n",
|
|
|
|
drive->name);
|
2005-04-17 00:20:36 +02:00
|
|
|
goto failed;
|
|
|
|
}
|
|
|
|
|
2008-10-17 18:09:09 +02:00
|
|
|
g = alloc_disk_node(1 << PARTN_BITS, hwif_to_node(drive->hwif));
|
2005-04-17 00:20:36 +02:00
|
|
|
if (!g)
|
|
|
|
goto out_free_floppy;
|
|
|
|
|
|
|
|
ide_init_disk(g, drive);
|
|
|
|
|
|
|
|
kref_init(&floppy->kref);
|
|
|
|
|
|
|
|
floppy->drive = drive;
|
|
|
|
floppy->driver = &idefloppy_driver;
|
|
|
|
floppy->disk = g;
|
|
|
|
|
|
|
|
g->private_data = &floppy->driver;
|
|
|
|
|
|
|
|
drive->driver_data = floppy;
|
|
|
|
|
2008-10-13 21:39:35 +02:00
|
|
|
drive->debug_mask = debug_mask;
|
|
|
|
|
2008-10-17 18:09:10 +02:00
|
|
|
idefloppy_setup(drive);
|
2005-05-26 14:55:34 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
g->minors = 1 << PARTN_BITS;
|
|
|
|
g->driverfs_dev = &drive->gendev;
|
2008-10-13 21:39:36 +02:00
|
|
|
if (drive->dev_flags & IDE_DFLAG_REMOVABLE)
|
|
|
|
g->flags = GENHD_FL_REMOVABLE;
|
2005-04-17 00:20:36 +02:00
|
|
|
g->fops = &idefloppy_ops;
|
|
|
|
add_disk(g);
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
out_free_floppy:
|
|
|
|
kfree(floppy);
|
|
|
|
failed:
|
2005-05-26 14:55:34 +02:00
|
|
|
return -ENODEV;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
static void __exit idefloppy_exit(void)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2005-05-26 14:55:34 +02:00
|
|
|
driver_unregister(&idefloppy_driver.gen_driver);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2005-11-19 22:24:35 +01:00
|
|
|
static int __init idefloppy_init(void)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-10-13 21:39:35 +02:00
|
|
|
printk(KERN_INFO DRV_NAME " driver " IDEFLOPPY_VERSION "\n");
|
2005-05-26 14:55:34 +02:00
|
|
|
return driver_register(&idefloppy_driver.gen_driver);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
[PATCH] ide: MODALIAS support for autoloading of ide-cd, ide-disk, ...
IDE: MODALIAS support for autoloading of ide-cd, ide-disk, ...
Add MODULE_ALIAS to IDE midlayer modules: ide-disk, ide-cd, ide-floppy and
ide-tape, to autoload these modules depending on the probed media type of
the IDE device.
It is used by udev and replaces the former agent shell script of the hotplug
package, which was required to lookup the media type in the proc filesystem.
Using proc was racy, cause the media file is created after the hotplug event
is sent out.
The module autoloading does not take any effect, until something like the
following udev rule is configured:
SUBSYSTEM=="ide", ACTION=="add", ENV{MODALIAS}=="?*", RUN+="/sbin/modprobe $env{MODALIAS}"
The module ide-scsi will not be autoloaded, cause it requires manual
configuration. It can't be, and never was supported for automatic setup in
the hotplug package. Adding a MODULE_ALIAS to ide-scsi for all supported
media types, would just lead to a default blacklist entry anyway.
$ modinfo ide-disk
filename: /lib/modules/2.6.15-rc4-g1b0997f5/kernel/drivers/ide/ide-disk.ko
description: ATA DISK Driver
alias: ide:*m-disk*
license: GPL
...
$ modprobe -vn ide:m-disk
insmod /lib/modules/2.6.15-rc4-g1b0997f5/kernel/drivers/ide/ide-disk.ko
$ cat /sys/bus/ide/devices/0.0/modalias
ide:m-disk
It also adds attributes to the IDE device:
$ tree /sys/bus/ide/devices/0.0/
/sys/bus/ide/devices/0.0/
|-- bus -> ../../../../../../../bus/ide
|-- drivename
|-- media
|-- modalias
|-- power
| |-- state
| `-- wakeup
`-- uevent
$ cat /sys/bus/ide/devices/0.0/{modalias,drivename,media}
ide:m-disk
hda
disk
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-12 18:03:44 +01:00
|
|
|
MODULE_ALIAS("ide:*m-floppy*");
|
2008-10-10 22:39:38 +02:00
|
|
|
MODULE_ALIAS("ide-floppy");
|
2005-04-17 00:20:36 +02:00
|
|
|
module_init(idefloppy_init);
|
|
|
|
module_exit(idefloppy_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
2008-02-02 19:56:38 +01:00
|
|
|
MODULE_DESCRIPTION("ATAPI FLOPPY Driver");
|
|
|
|
|