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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2008-02-02 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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2008-02-02 19:56:36 +01:00
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/* define to see debug info */
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2005-04-17 00:20:36 +02:00
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#define IDEFLOPPY_DEBUG_LOG 0
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/* #define IDEFLOPPY_DEBUG(fmt, args...) printk(KERN_INFO fmt, ## args) */
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2008-02-02 19:56:38 +01:00
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#define IDEFLOPPY_DEBUG(fmt, args...)
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2005-04-17 00:20:36 +02:00
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#if IDEFLOPPY_DEBUG_LOG
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2008-02-02 19:56:34 +01:00
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#define debug_log(fmt, args...) \
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printk(KERN_INFO "ide-floppy: " fmt, ## args)
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2005-04-17 00:20:36 +02:00
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#else
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2008-02-02 19:56:38 +01:00
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#define debug_log(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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2008-02-02 19:56:38 +01:00
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/* Some drives require a longer irq timeout. */
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2005-04-17 00:20:36 +02:00
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#define IDEFLOPPY_WAIT_CMD (5 * WAIT_CMD)
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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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/*
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2008-02-02 19:56:38 +01:00
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* With each packet command, we allocate a buffer of IDEFLOPPY_PC_BUFFER_SIZE
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* bytes.
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2005-04-17 00:20:36 +02:00
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*/
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#define IDEFLOPPY_PC_BUFFER_SIZE 256
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/*
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2008-02-02 19:56:38 +01:00
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* In various places in the driver, we need to allocate storage for packet
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2008-10-10 22:39:35 +02:00
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* commands, which will remain valid while we leave the driver to wait for
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* an interrupt or a timeout event.
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2005-04-17 00:20:36 +02:00
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*/
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#define IDEFLOPPY_PC_STACK (10 + IDEFLOPPY_MAX_PC_RETRIES)
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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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/*
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2008-02-02 19:56:38 +01:00
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* Most of our global data which we need to save even as we leave the driver
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* due to an interrupt or a timer event is stored in a variable of type
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* idefloppy_floppy_t, defined below.
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2005-04-17 00:20:36 +02:00
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*/
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typedef struct ide_floppy_obj {
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ide_drive_t *drive;
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ide_driver_t *driver;
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struct gendisk *disk;
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struct kref kref;
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2007-02-17 02:40:24 +01:00
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unsigned int openers; /* protected by BKL for now */
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2005-04-17 00:20:36 +02:00
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/* Current packet command */
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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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/* Last failed packet command */
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2008-04-18 00:46:27 +02:00
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struct ide_atapi_pc *failed_pc;
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2005-04-17 00:20:36 +02:00
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/* Packet command stack */
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2008-04-18 00:46:27 +02:00
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struct ide_atapi_pc pc_stack[IDEFLOPPY_PC_STACK];
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2005-04-17 00:20:36 +02:00
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/* Next free packet command storage space */
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int pc_stack_index;
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2008-10-10 22:39:35 +02:00
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struct request request_sense_rq;
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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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/* Last error information */
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2005-04-17 00:20:36 +02:00
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u8 sense_key, asc, ascq;
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/* delay this long before sending packet command */
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u8 ticks;
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int progress_indication;
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2008-02-02 19:56:38 +01:00
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/* Device information */
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2005-04-17 00:20:36 +02:00
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/* Current format */
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int blocks, block_size, bs_factor;
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2008-02-02 19:56:35 +01:00
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/* Last format capacity descriptor */
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u8 cap_desc[8];
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2005-04-17 00:20:36 +02:00
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/* Copy of the flexible disk page */
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2008-02-02 19:56:35 +01:00
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u8 flexible_disk_page[32];
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2005-04-17 00:20:36 +02:00
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/* Write protect */
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int wp;
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/* Supports format progress report */
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int srfp;
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} idefloppy_floppy_t;
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2005-08-18 22:09:21 +02:00
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#define IDEFLOPPY_TICKS_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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/* Defines for the MODE SENSE command */
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2005-04-17 00:20:36 +02:00
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#define MODE_SENSE_CURRENT 0x00
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#define MODE_SENSE_CHANGEABLE 0x01
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2008-02-02 19:56:38 +01:00
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#define MODE_SENSE_DEFAULT 0x02
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2005-04-17 00:20:36 +02:00
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#define MODE_SENSE_SAVED 0x03
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2008-02-02 19:56:38 +01:00
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/* IOCTLs used in low-level formatting. */
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2005-04-17 00:20:36 +02:00
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#define IDEFLOPPY_IOCTL_FORMAT_SUPPORTED 0x4600
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#define IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY 0x4601
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#define IDEFLOPPY_IOCTL_FORMAT_START 0x4602
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#define IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS 0x4603
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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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/*
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2008-02-02 19:56:34 +01:00
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* Pages of the SELECT SENSE / MODE SENSE packet commands.
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* See SFF-8070i spec.
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2005-04-17 00:20:36 +02:00
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*/
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#define IDEFLOPPY_CAPABILITIES_PAGE 0x1b
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#define IDEFLOPPY_FLEXIBLE_DISK_PAGE 0x05
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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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#define to_ide_floppy(obj) container_of(obj, struct ide_floppy_obj, kref)
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#define ide_floppy_g(disk) \
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container_of((disk)->private_data, struct ide_floppy_obj, driver)
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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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2005-04-17 00:20:36 +02:00
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floppy = ide_floppy_g(disk);
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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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2008-02-02 19:56:34 +01:00
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debug_log("Reached %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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2008-02-02 19:56:38 +01:00
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case 0: error = IDEFLOPPY_ERROR_GENERAL; break;
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case 1: error = 0; break;
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default: error = uptodate;
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2005-04-17 00:20:36 +02:00
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}
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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 ide_floppy_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
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2008-02-02 19:56:36 +01:00
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unsigned int bcount, int direction)
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2005-04-17 00:20:36 +02:00
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{
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2008-04-28 23:44:36 +02:00
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ide_hwif_t *hwif = drive->hwif;
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2008-10-10 22:39:35 +02:00
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const struct ide_tp_ops *tp_ops = hwif->tp_ops;
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xfer_func_t *xf = direction ? tp_ops->output_data : tp_ops->input_data;
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struct scatterlist *sg = pc->sg;
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char *buf;
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2007-09-25 12:35:59 +02:00
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int count, done = 0;
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2005-04-17 00:20:36 +02:00
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2008-10-10 22:39:35 +02:00
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while (bcount) {
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count = min(sg->length - pc->b_count, bcount);
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if (PageHighMem(sg_page(sg))) {
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unsigned long flags;
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local_irq_save(flags);
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buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
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xf(drive, NULL, buf + pc->b_count, count);
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kunmap_atomic(buf - sg->offset, KM_IRQ0);
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local_irq_restore(flags);
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} else {
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buf = sg_virt(sg);
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xf(drive, NULL, buf + pc->b_count, count);
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}
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2007-08-16 13:43:12 +02:00
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bcount -= count;
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pc->b_count += count;
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done += count;
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2008-10-10 22:39:35 +02:00
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if (pc->b_count == sg->length) {
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if (!--pc->sg_cnt)
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break;
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pc->sg = sg = sg_next(sg);
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pc->b_count = 0;
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}
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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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idefloppy_end_request(drive, 1, done >> 9);
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2005-04-17 00:20:36 +02:00
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if (bcount) {
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2008-02-02 19:56:36 +01:00
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printk(KERN_ERR "%s: leftover data in %s, bcount == %d\n",
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drive->name, __func__, bcount);
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2008-04-28 23:44:41 +02:00
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ide_pad_transfer(drive, direction, bcount);
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2005-04-17 00:20:36 +02:00
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}
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}
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2008-04-18 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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/*
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2008-02-02 19:56:38 +01:00
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* Generate a new packet command request in front of the request queue, before
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* the current request so that it will be processed immediately, on the next
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* pass through the driver.
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2005-04-17 00:20:36 +02:00
|
|
|
*/
|
2008-04-18 00:46:27 +02:00
|
|
|
static void idefloppy_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc,
|
2008-02-02 19:56:38 +01:00
|
|
|
struct request *rq)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
struct ide_floppy_obj *floppy = drive->driver_data;
|
|
|
|
|
2008-07-15 21:21:44 +02:00
|
|
|
blk_rq_init(NULL, rq);
|
2005-04-17 00:20:36 +02:00
|
|
|
rq->buffer = (char *) pc;
|
2006-08-10 08:44:47 +02:00
|
|
|
rq->cmd_type = REQ_TYPE_SPECIAL;
|
2008-07-15 21:21:41 +02:00
|
|
|
rq->cmd_flags |= REQ_PREEMPT;
|
2005-04-17 00:20:36 +02:00
|
|
|
rq->rq_disk = floppy->disk;
|
2008-07-23 19:56:00 +02:00
|
|
|
memcpy(rq->cmd, pc->c, 12);
|
2008-07-15 21:21:51 +02:00
|
|
|
ide_do_drive_cmd(drive, rq);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
static struct ide_atapi_pc *idefloppy_next_pc_storage(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
|
|
|
|
|
|
|
if (floppy->pc_stack_index == IDEFLOPPY_PC_STACK)
|
2008-02-02 19:56:38 +01:00
|
|
|
floppy->pc_stack_index = 0;
|
2005-04-17 00:20:36 +02:00
|
|
|
return (&floppy->pc_stack[floppy->pc_stack_index++]);
|
|
|
|
}
|
|
|
|
|
2008-07-15 21:21:56 +02:00
|
|
|
static void ide_floppy_callback(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
2008-07-15 21:21:56 +02:00
|
|
|
struct ide_atapi_pc *pc = floppy->pc;
|
|
|
|
int uptodate = pc->error ? 0 : 1;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-02-02 19:56:34 +01:00
|
|
|
debug_log("Reached %s\n", __func__);
|
|
|
|
|
2008-07-15 21:22:01 +02:00
|
|
|
if (floppy->failed_pc == pc)
|
|
|
|
floppy->failed_pc = NULL;
|
|
|
|
|
2008-07-15 21:21:56 +02:00
|
|
|
if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 ||
|
|
|
|
(pc->rq && blk_pc_request(pc->rq)))
|
|
|
|
uptodate = 1; /* FIXME */
|
|
|
|
else if (pc->c[0] == GPCMD_REQUEST_SENSE) {
|
|
|
|
u8 *buf = floppy->pc->buf;
|
2008-02-02 19:56:34 +01:00
|
|
|
|
2008-07-15 21:21:56 +02:00
|
|
|
if (!pc->error) {
|
|
|
|
floppy->sense_key = buf[2] & 0x0F;
|
|
|
|
floppy->asc = buf[12];
|
|
|
|
floppy->ascq = buf[13];
|
|
|
|
floppy->progress_indication = buf[15] & 0x80 ?
|
|
|
|
(u16)get_unaligned((u16 *)&buf[16]) : 0x10000;
|
2008-02-02 19:56:34 +01:00
|
|
|
|
2008-07-15 21:21:56 +02:00
|
|
|
if (floppy->failed_pc)
|
|
|
|
debug_log("pc = %x, ", floppy->failed_pc->c[0]);
|
2008-02-02 19:56:34 +01:00
|
|
|
|
2008-07-15 21:21:56 +02:00
|
|
|
debug_log("sense key = %x, asc = %x, ascq = %x\n",
|
|
|
|
floppy->sense_key, floppy->asc, floppy->ascq);
|
|
|
|
} else
|
|
|
|
printk(KERN_ERR "Error in REQUEST SENSE itself - "
|
|
|
|
"Aborting request!\n");
|
|
|
|
}
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-07-15 21:21:56 +02:00
|
|
|
idefloppy_end_request(drive, uptodate, 0);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
static void idefloppy_init_pc(struct ide_atapi_pc *pc)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-07-16 20:33:47 +02:00
|
|
|
memset(pc, 0, sizeof(*pc));
|
2008-04-18 00:46:27 +02:00
|
|
|
pc->buf = pc->pc_buf;
|
|
|
|
pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-02-02 19:56:33 +01:00
|
|
|
idefloppy_init_pc(pc);
|
|
|
|
pc->c[0] = GPCMD_REQUEST_SENSE;
|
2005-04-17 00:20:36 +02:00
|
|
|
pc->c[4] = 255;
|
2008-04-18 00:46:27 +02:00
|
|
|
pc->req_xfer = 18;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2008-02-02 19:56:38 +01:00
|
|
|
* Called when an error was detected during the last packet command. We queue a
|
|
|
|
* request sense packet command in the head of the request list.
|
2005-04-17 00:20:36 +02:00
|
|
|
*/
|
2008-02-02 19:56:38 +01:00
|
|
|
static void idefloppy_retry_pc(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-10-10 22:39:35 +02:00
|
|
|
struct ide_floppy_obj *floppy = drive->driver_data;
|
|
|
|
struct request *rq = &floppy->request_sense_rq;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc *pc;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-02-06 02:57:51 +01:00
|
|
|
(void)ide_read_error(drive);
|
2005-04-17 00:20:36 +02:00
|
|
|
pc = idefloppy_next_pc_storage(drive);
|
|
|
|
idefloppy_create_request_sense_cmd(pc);
|
|
|
|
idefloppy_queue_pc_head(drive, pc, rq);
|
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:36 +01:00
|
|
|
/* The usual interrupt handler called during a packet command. */
|
2008-04-26 17:36:41 +02:00
|
|
|
static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
|
|
|
|
2008-07-15 21:22:03 +02:00
|
|
|
return ide_pc_intr(drive, floppy->pc, idefloppy_pc_intr,
|
|
|
|
IDEFLOPPY_WAIT_CMD, NULL, idefloppy_update_buffers,
|
|
|
|
idefloppy_retry_pc, NULL, ide_floppy_io_buffers);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2008-02-02 19:56:38 +01:00
|
|
|
* What we have here is a classic case of a top half / bottom half interrupt
|
|
|
|
* service routine. In interrupt mode, the device sends an interrupt to signal
|
|
|
|
* that it is ready to receive a packet. However, we need to delay about 2-3
|
|
|
|
* ticks before issuing the packet or we gets in trouble.
|
2005-04-17 00:20:36 +02:00
|
|
|
*/
|
2008-07-15 21:22:03 +02:00
|
|
|
static int idefloppy_transfer_pc(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
|
|
|
|
|
|
|
/* Send the actual packet */
|
2008-07-23 19:55:56 +02:00
|
|
|
drive->hwif->tp_ops->output_data(drive, NULL, floppy->pc->c, 12);
|
2008-04-28 23:44:36 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/* Timeout for the packet command */
|
|
|
|
return IDEFLOPPY_WAIT_CMD;
|
|
|
|
}
|
|
|
|
|
2008-07-15 21:22:03 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Called as an interrupt (or directly). When the device says it's ready for a
|
|
|
|
* packet, we schedule the packet transfer to occur about 2-3 ticks later in
|
|
|
|
* transfer_pc.
|
|
|
|
*/
|
|
|
|
static ide_startstop_t idefloppy_start_pc_transfer(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
2008-07-15 21:21:56 +02:00
|
|
|
struct ide_atapi_pc *pc = floppy->pc;
|
2008-07-15 21:21:54 +02:00
|
|
|
ide_expiry_t *expiry;
|
|
|
|
unsigned int timeout;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
/*
|
2005-04-17 00:20:36 +02:00
|
|
|
* The following delay solves a problem with ATAPI Zip 100 drives
|
|
|
|
* where the Busy flag was apparently being deasserted before the
|
|
|
|
* unit was ready to receive data. This was happening on a
|
|
|
|
* 1200 MHz Athlon system. 10/26/01 25msec is too short,
|
|
|
|
* 40 and 50msec work well. idefloppy_pc_intr will not be actually
|
|
|
|
* used until after the packet is moved in about 50 msec.
|
|
|
|
*/
|
2008-07-23 19:56:01 +02:00
|
|
|
if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) {
|
2008-07-15 21:21:54 +02:00
|
|
|
timeout = floppy->ticks;
|
2008-07-15 21:22:03 +02:00
|
|
|
expiry = &idefloppy_transfer_pc;
|
2008-07-15 21:21:54 +02:00
|
|
|
} else {
|
|
|
|
timeout = IDEFLOPPY_WAIT_CMD;
|
|
|
|
expiry = NULL;
|
|
|
|
}
|
|
|
|
|
2008-07-15 21:21:58 +02:00
|
|
|
return ide_transfer_pc(drive, pc, idefloppy_pc_intr, timeout, expiry);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:35 +01:00
|
|
|
static void ide_floppy_report_error(idefloppy_floppy_t *floppy,
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc *pc)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-02-02 19:56:35 +01:00
|
|
|
/* supress error messages resulting from Medium not present */
|
2005-04-17 00:20:36 +02:00
|
|
|
if (floppy->sense_key == 0x02 &&
|
|
|
|
floppy->asc == 0x3a &&
|
|
|
|
floppy->ascq == 0x00)
|
2008-02-02 19:56:35 +01:00
|
|
|
return;
|
|
|
|
|
|
|
|
printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x, key = %2x, "
|
|
|
|
"asc = %2x, ascq = %2x\n",
|
|
|
|
floppy->drive->name, pc->c[0], floppy->sense_key,
|
|
|
|
floppy->asc, floppy->ascq);
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc *pc)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
|
|
|
|
|
|
|
if (floppy->failed_pc == NULL &&
|
2008-02-02 19:56:33 +01:00
|
|
|
pc->c[0] != GPCMD_REQUEST_SENSE)
|
2005-04-17 00:20:36 +02:00
|
|
|
floppy->failed_pc = pc;
|
|
|
|
/* Set the current packet command */
|
|
|
|
floppy->pc = pc;
|
|
|
|
|
2008-02-02 19:56:37 +01:00
|
|
|
if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) {
|
2008-02-02 19:56:37 +01:00
|
|
|
if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR))
|
2008-02-02 19:56:37 +01:00
|
|
|
ide_floppy_report_error(floppy, pc);
|
|
|
|
/* Giving up */
|
|
|
|
pc->error = IDEFLOPPY_ERROR_GENERAL;
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
floppy->failed_pc = NULL;
|
2008-07-23 19:55:59 +02:00
|
|
|
drive->pc_callback(drive);
|
2005-04-17 00:20:36 +02:00
|
|
|
return ide_stopped;
|
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:34 +01:00
|
|
|
debug_log("Retry number - %d\n", pc->retries);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
pc->retries++;
|
|
|
|
|
2008-07-15 21:22:03 +02:00
|
|
|
return ide_issue_pc(drive, pc, idefloppy_start_pc_transfer,
|
2008-07-15 21:22:00 +02:00
|
|
|
IDEFLOPPY_WAIT_CMD, NULL);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-02-02 19:56:34 +01:00
|
|
|
debug_log("creating prevent removal command, prevent = %d\n", prevent);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
idefloppy_init_pc(pc);
|
2008-02-02 19:56:33 +01:00
|
|
|
pc->c[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL;
|
2005-04-17 00:20:36 +02:00
|
|
|
pc->c[4] = prevent;
|
|
|
|
}
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
static void idefloppy_create_read_capacity_cmd(struct ide_atapi_pc *pc)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_init_pc(pc);
|
2008-02-02 19:56:33 +01:00
|
|
|
pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES;
|
2005-04-17 00:20:36 +02:00
|
|
|
pc->c[7] = 255;
|
|
|
|
pc->c[8] = 255;
|
2008-04-18 00:46:27 +02:00
|
|
|
pc->req_xfer = 255;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
static void idefloppy_create_format_unit_cmd(struct ide_atapi_pc *pc, int b,
|
|
|
|
int l, int flags)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_init_pc(pc);
|
2008-02-02 19:56:33 +01:00
|
|
|
pc->c[0] = GPCMD_FORMAT_UNIT;
|
2005-04-17 00:20:36 +02:00
|
|
|
pc->c[1] = 0x17;
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
memset(pc->buf, 0, 12);
|
|
|
|
pc->buf[1] = 0xA2;
|
2005-04-17 00:20:36 +02:00
|
|
|
/* Default format list header, u8 1: FOV/DCRT/IMM bits set */
|
|
|
|
|
|
|
|
if (flags & 1) /* Verify bit on... */
|
2008-04-18 00:46:27 +02:00
|
|
|
pc->buf[1] ^= 0x20; /* ... turn off DCRT bit */
|
|
|
|
pc->buf[3] = 8;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buf[4]));
|
|
|
|
put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buf[8]));
|
|
|
|
pc->buf_size = 12;
|
2008-02-02 19:56:37 +01:00
|
|
|
pc->flags |= PC_FLAG_WRITING;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
/* A mode sense command is used to "sense" floppy parameters. */
|
2008-04-18 00:46:27 +02:00
|
|
|
static void idefloppy_create_mode_sense_cmd(struct ide_atapi_pc *pc,
|
|
|
|
u8 page_code, u8 type)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-02-02 19:56:34 +01:00
|
|
|
u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */
|
2008-02-02 19:56:38 +01:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
idefloppy_init_pc(pc);
|
2008-02-02 19:56:33 +01:00
|
|
|
pc->c[0] = GPCMD_MODE_SENSE_10;
|
2005-04-17 00:20:36 +02:00
|
|
|
pc->c[1] = 0;
|
|
|
|
pc->c[2] = page_code + (type << 6);
|
|
|
|
|
|
|
|
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:
|
|
|
|
printk(KERN_ERR "ide-floppy: unsupported page code "
|
2005-04-17 00:20:36 +02:00
|
|
|
"in create_mode_sense_cmd\n");
|
|
|
|
}
|
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
|
|
|
}
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
static void idefloppy_create_start_stop_cmd(struct ide_atapi_pc *pc, int start)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_init_pc(pc);
|
2008-02-02 19:56:33 +01:00
|
|
|
pc->c[0] = GPCMD_START_STOP_UNIT;
|
2005-04-17 00:20:36 +02:00
|
|
|
pc->c[4] = start;
|
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:36 +01:00
|
|
|
static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy,
|
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
|
|
|
{
|
|
|
|
int block = sector / floppy->bs_factor;
|
|
|
|
int blocks = rq->nr_sectors / floppy->bs_factor;
|
|
|
|
int cmd = rq_data_dir(rq);
|
|
|
|
|
2008-02-02 19:56:36 +01:00
|
|
|
debug_log("create_rw10_cmd: block == %d, blocks == %d\n",
|
2005-04-17 00:20:36 +02:00
|
|
|
block, blocks);
|
|
|
|
|
|
|
|
idefloppy_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
|
|
|
{
|
|
|
|
idefloppy_init_pc(pc);
|
|
|
|
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;
|
|
|
|
|
2008-10-10 22:39:35 +02:00
|
|
|
debug_log("%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);
|
|
|
|
|
|
|
|
debug_log("%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
|
|
|
|
printk(KERN_ERR "ide-floppy: %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)) {
|
2008-02-02 19:56:38 +01:00
|
|
|
printk(KERN_ERR "%s: unsupported r/w request 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;
|
|
|
|
}
|
|
|
|
pc = idefloppy_next_pc_storage(drive);
|
|
|
|
idefloppy_create_rw_cmd(floppy, 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)) {
|
2005-04-17 00:20:36 +02:00
|
|
|
pc = idefloppy_next_pc_storage(drive);
|
2007-07-09 12:38:05 +02:00
|
|
|
idefloppy_blockpc_cmd(floppy, pc, rq);
|
2005-04-17 00:20:36 +02:00
|
|
|
} else {
|
|
|
|
blk_dump_rq_flags(rq,
|
|
|
|
"ide-floppy: 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 19:56:38 +01:00
|
|
|
* Add a special packet command request to the tail of the request queue,
|
|
|
|
* and wait for it to be serviced.
|
2005-04-17 00:20:36 +02:00
|
|
|
*/
|
2008-04-18 00:46:27 +02:00
|
|
|
static int idefloppy_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
struct ide_floppy_obj *floppy = drive->driver_data;
|
2008-07-15 21:21:43 +02:00
|
|
|
struct request *rq;
|
|
|
|
int error;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-07-15 21:21:43 +02:00
|
|
|
rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
|
|
|
|
rq->buffer = (char *) pc;
|
|
|
|
rq->cmd_type = REQ_TYPE_SPECIAL;
|
2008-07-23 19:56:00 +02:00
|
|
|
memcpy(rq->cmd, pc->c, 12);
|
2008-07-15 21:21:43 +02:00
|
|
|
error = blk_execute_rq(drive->queue, floppy->disk, rq, 0);
|
|
|
|
blk_put_request(rq);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-07-15 21:21:43 +02:00
|
|
|
return error;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
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;
|
2008-04-18 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
|
|
|
|
2008-02-02 19:56:35 +01:00
|
|
|
idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE,
|
|
|
|
MODE_SENSE_CURRENT);
|
|
|
|
|
|
|
|
if (idefloppy_queue_pc_tail(drive, &pc)) {
|
|
|
|
printk(KERN_ERR "ide-floppy: Can't get flexible disk page"
|
|
|
|
" parameters\n");
|
2005-04-17 00:20:36 +02:00
|
|
|
return 1;
|
|
|
|
}
|
2008-04-18 00:46:27 +02:00
|
|
|
floppy->wp = !!(pc.buf[3] & 0x80);
|
2005-04-17 00:20:36 +02:00
|
|
|
set_disk_ro(floppy->disk, floppy->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))
|
2005-04-17 00:20:36 +02:00
|
|
|
printk(KERN_INFO "%s: %dkB, %d/%d/%d CHS, %d kBps, "
|
|
|
|
"%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) {
|
|
|
|
printk(KERN_NOTICE "%s: The disk reports a capacity of %d "
|
|
|
|
"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 19:56:34 +01:00
|
|
|
static int idefloppy_get_sfrp_bit(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc pc;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
floppy->srfp = 0;
|
|
|
|
idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_CAPABILITIES_PAGE,
|
|
|
|
MODE_SENSE_CURRENT);
|
|
|
|
|
2008-02-02 19:56:37 +01:00
|
|
|
pc.flags |= PC_FLAG_SUPPRESS_ERROR;
|
2008-02-02 19:56:34 +01:00
|
|
|
if (idefloppy_queue_pc_tail(drive, &pc))
|
2005-04-17 00:20:36 +02:00
|
|
|
return 1;
|
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
floppy->srfp = pc.buf[8 + 2] & 0x40;
|
2008-10-10 22:39:34 +02:00
|
|
|
return 0;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
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;
|
2008-04-18 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);
|
|
|
|
|
|
|
|
idefloppy_create_read_capacity_cmd(&pc);
|
|
|
|
if (idefloppy_queue_pc_tail(drive, &pc)) {
|
|
|
|
printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
|
|
|
|
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
|
|
|
|
|
|
|
debug_log("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))
|
2005-04-17 00:20:36 +02:00
|
|
|
printk(KERN_INFO "%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) {
|
|
|
|
printk(KERN_NOTICE "%s: %d bytes block size "
|
|
|
|
"not supported\n", drive->name, length);
|
|
|
|
} 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)
|
|
|
|
printk(KERN_NOTICE "%s: warning: non "
|
2005-04-17 00:20:36 +02:00
|
|
|
"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
|
|
|
|
*/
|
|
|
|
printk(KERN_ERR "%s: No disk in drive\n", drive->name);
|
|
|
|
break;
|
|
|
|
case CAPACITY_INVALID:
|
|
|
|
printk(KERN_ERR "%s: Invalid capacity for disk "
|
|
|
|
"in drive\n", drive->name);
|
|
|
|
break;
|
|
|
|
}
|
2008-02-02 19:56:35 +01:00
|
|
|
debug_log("Descriptor 0 Code: %d\n",
|
2008-04-18 00:46:27 +02:00
|
|
|
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
|
|
|
|
|
|
|
set_capacity(floppy->disk, floppy->blocks * floppy->bs_factor);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2008-02-02 19:56:35 +01:00
|
|
|
* Obtain the list of formattable capacities.
|
|
|
|
* Very similar to ide_floppy_get_capacity, except that we push the capacity
|
|
|
|
* descriptors to userland, instead of our own structures.
|
|
|
|
*
|
|
|
|
* Userland gives us the following structure:
|
|
|
|
*
|
|
|
|
* struct idefloppy_format_capacities {
|
|
|
|
* int nformats;
|
|
|
|
* struct {
|
|
|
|
* int nblocks;
|
|
|
|
* int blocksize;
|
|
|
|
* } formats[];
|
|
|
|
* };
|
|
|
|
*
|
|
|
|
* userland initializes nformats to the number of allocated formats[] records.
|
|
|
|
* On exit we set nformats to the number of records we've actually initialized.
|
|
|
|
*/
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-02-02 19:56:35 +01:00
|
|
|
static int ide_floppy_get_format_capacities(ide_drive_t *drive, int __user *arg)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc pc;
|
2008-02-02 19:56:35 +01:00
|
|
|
u8 header_len, desc_cnt;
|
|
|
|
int i, blocks, length, u_array_size, u_index;
|
2005-04-17 00:20:36 +02:00
|
|
|
int __user *argp;
|
|
|
|
|
|
|
|
if (get_user(u_array_size, arg))
|
2008-10-10 22:39:34 +02:00
|
|
|
return -EFAULT;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
if (u_array_size <= 0)
|
2008-10-10 22:39:34 +02:00
|
|
|
return -EINVAL;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
idefloppy_create_read_capacity_cmd(&pc);
|
|
|
|
if (idefloppy_queue_pc_tail(drive, &pc)) {
|
|
|
|
printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
|
2008-10-10 22:39:34 +02:00
|
|
|
return -EIO;
|
2008-02-02 19:56:35 +01:00
|
|
|
}
|
2008-10-10 22:39:34 +02:00
|
|
|
|
2008-04-18 00:46:27 +02:00
|
|
|
header_len = pc.buf[3];
|
2008-02-02 19:56:35 +01:00
|
|
|
desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
u_index = 0;
|
|
|
|
argp = arg + 1;
|
|
|
|
|
|
|
|
/*
|
2008-02-02 19:56:35 +01:00
|
|
|
* We always skip the first capacity descriptor. That's the current
|
|
|
|
* capacity. We are interested in the remaining descriptors, the
|
|
|
|
* formattable capacities.
|
|
|
|
*/
|
|
|
|
for (i = 1; i < desc_cnt; i++) {
|
|
|
|
unsigned int desc_start = 4 + i*8;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
if (u_index >= u_array_size)
|
|
|
|
break; /* User-supplied buffer too small */
|
|
|
|
|
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]);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
if (put_user(blocks, argp))
|
2008-10-10 22:39:34 +02:00
|
|
|
return -EFAULT;
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
++argp;
|
|
|
|
|
|
|
|
if (put_user(length, argp))
|
2008-10-10 22:39:34 +02:00
|
|
|
return -EFAULT;
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
++argp;
|
|
|
|
|
|
|
|
++u_index;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (put_user(u_index, arg))
|
2008-10-10 22:39:34 +02:00
|
|
|
return -EFAULT;
|
|
|
|
|
|
|
|
return 0;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2008-02-02 19:56:38 +01:00
|
|
|
* Get ATAPI_FORMAT_UNIT progress indication.
|
|
|
|
*
|
|
|
|
* Userland gives a pointer to an int. The int is set to a progress
|
|
|
|
* indicator 0-65536, with 65536=100%.
|
|
|
|
*
|
|
|
|
* If the drive does not support format progress indication, we just check
|
|
|
|
* the dsc bit, and return either 0 or 65536.
|
|
|
|
*/
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-10-10 22:39:34 +02:00
|
|
|
static int ide_floppy_get_format_progress(ide_drive_t *drive, int __user *arg)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc pc;
|
2005-04-17 00:20:36 +02:00
|
|
|
int progress_indication = 0x10000;
|
|
|
|
|
|
|
|
if (floppy->srfp) {
|
|
|
|
idefloppy_create_request_sense_cmd(&pc);
|
2008-02-02 19:56:38 +01:00
|
|
|
if (idefloppy_queue_pc_tail(drive, &pc))
|
2008-10-10 22:39:34 +02:00
|
|
|
return -EIO;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
if (floppy->sense_key == 2 &&
|
|
|
|
floppy->asc == 4 &&
|
2008-02-02 19:56:38 +01:00
|
|
|
floppy->ascq == 4)
|
2005-04-17 00:20:36 +02:00
|
|
|
progress_indication = floppy->progress_indication;
|
2008-02-02 19:56:38 +01:00
|
|
|
|
|
|
|
/* Else assume format_unit has finished, and we're at 0x10000 */
|
2005-04-17 00:20:36 +02:00
|
|
|
} else {
|
2008-07-23 19:55:52 +02:00
|
|
|
ide_hwif_t *hwif = drive->hwif;
|
2005-04-17 00:20:36 +02:00
|
|
|
unsigned long flags;
|
2008-01-25 22:17:11 +01:00
|
|
|
u8 stat;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
local_irq_save(flags);
|
2008-07-23 19:55:56 +02:00
|
|
|
stat = hwif->tp_ops->read_status(hwif);
|
2005-04-17 00:20:36 +02:00
|
|
|
local_irq_restore(flags);
|
|
|
|
|
2008-10-10 22:39:21 +02:00
|
|
|
progress_indication = ((stat & ATA_DSC) == 0) ? 0 : 0x10000;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
2008-10-10 22:39:34 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
if (put_user(progress_indication, arg))
|
2008-10-10 22:39:34 +02:00
|
|
|
return -EFAULT;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-10-10 22:39:34 +02:00
|
|
|
return 0;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
static sector_t idefloppy_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;
|
|
|
|
}
|
|
|
|
|
2007-05-10 00:01:10 +02:00
|
|
|
#ifdef CONFIG_IDE_PROC_FS
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-10 22:39:28 +02:00
|
|
|
ide_devset_rw(bios_cyl, 0, 1023, bios_cyl);
|
|
|
|
ide_devset_rw(bios_head, 0, 255, bios_head);
|
|
|
|
ide_devset_rw(bios_sect, 0, 63, bios_sect);
|
|
|
|
|
|
|
|
static int get_ticks(ide_drive_t *drive)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-10 22:39:28 +02:00
|
|
|
return floppy->ticks;
|
|
|
|
}
|
2005-04-17 00:20:36 +02:00
|
|
|
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-10 22:39:28 +02:00
|
|
|
static int set_ticks(ide_drive_t *drive, int arg)
|
|
|
|
{
|
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
|
|
|
floppy->ticks = arg;
|
|
|
|
return 0;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-10 22:39:28 +02:00
|
|
|
|
|
|
|
IDE_DEVSET(ticks, S_RW, 0, 255, get_ticks, set_ticks);
|
|
|
|
|
|
|
|
static const struct ide_devset *idefloppy_settings[] = {
|
|
|
|
&ide_devset_bios_cyl,
|
|
|
|
&ide_devset_bios_head,
|
|
|
|
&ide_devset_bios_sect,
|
|
|
|
&ide_devset_ticks,
|
|
|
|
NULL
|
|
|
|
};
|
2007-05-10 00:01:10 +02:00
|
|
|
#endif
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2008-10-10 22:39:19 +02:00
|
|
|
u16 *id = drive->id;
|
2008-04-18 00:46:25 +02:00
|
|
|
u8 gcw[2];
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-10-10 22:39:19 +02:00
|
|
|
*((u16 *)&gcw) = id[ATA_ID_CONFIG];
|
2005-04-17 00:20:36 +02:00
|
|
|
floppy->pc = floppy->pc_stack;
|
2008-07-23 19:55:59 +02:00
|
|
|
drive->pc_callback = ide_floppy_callback;
|
2008-04-18 00:46:25 +02:00
|
|
|
|
|
|
|
if (((gcw[0] & 0x60) >> 5) == 1)
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT;
|
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 */
|
|
|
|
floppy->ticks = IDEFLOPPY_TICKS_DELAY;
|
|
|
|
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;
|
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);
|
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
|
|
|
{
|
|
|
|
struct ide_floppy_obj *floppy = to_ide_floppy(kref);
|
|
|
|
ide_drive_t *drive = floppy->drive;
|
|
|
|
struct gendisk *g = floppy->disk;
|
|
|
|
|
|
|
|
drive->driver_data = NULL;
|
|
|
|
g->private_data = NULL;
|
|
|
|
put_disk(g);
|
|
|
|
kfree(floppy);
|
|
|
|
}
|
|
|
|
|
2007-05-10 00:01:09 +02:00
|
|
|
#ifdef CONFIG_IDE_PROC_FS
|
2008-02-02 19:56:38 +01:00
|
|
|
static int proc_idefloppy_read_capacity(char *page, char **start, off_t off,
|
|
|
|
int count, int *eof, void *data)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
|
|
|
ide_drive_t*drive = (ide_drive_t *)data;
|
|
|
|
int len;
|
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
len = sprintf(page, "%llu\n", (long long)idefloppy_capacity(drive));
|
|
|
|
PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static ide_proc_entry_t idefloppy_proc[] = {
|
2008-02-02 19:56:38 +01:00
|
|
|
{ "capacity", S_IFREG|S_IRUGO, proc_idefloppy_read_capacity, NULL },
|
|
|
|
{ "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL },
|
2005-04-17 00:20:36 +02:00
|
|
|
{ NULL, 0, NULL, NULL }
|
|
|
|
};
|
2007-05-10 00:01:09 +02:00
|
|
|
#endif /* CONFIG_IDE_PROC_FS */
|
2005-04-17 00:20:36 +02:00
|
|
|
|
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,
|
|
|
|
.media = ide_floppy,
|
|
|
|
.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
|
2005-04-17 00:20:36 +02:00
|
|
|
.proc = idefloppy_proc,
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-10 22:39:28 +02:00
|
|
|
.settings = idefloppy_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;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc pc;
|
2005-04-17 00:20:36 +02:00
|
|
|
int ret = 0;
|
|
|
|
|
2008-02-02 19:56:34 +01:00
|
|
|
debug_log("Reached %s\n", __func__);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
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;
|
|
|
|
|
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 */
|
|
|
|
|
2008-07-16 20:33:46 +02:00
|
|
|
idefloppy_init_pc(&pc);
|
|
|
|
pc.c[0] = GPCMD_TEST_UNIT_READY;
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
if (idefloppy_queue_pc_tail(drive, &pc)) {
|
|
|
|
idefloppy_create_start_stop_cmd(&pc, 1);
|
|
|
|
(void) idefloppy_queue_pc_tail(drive, &pc);
|
|
|
|
}
|
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (floppy->wp && (filp->f_mode & 2)) {
|
|
|
|
ret = -EROFS;
|
|
|
|
goto out_put_floppy;
|
|
|
|
}
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED;
|
2005-04-17 00:20:36 +02:00
|
|
|
/* IOMEGA Clik! drives do not support lock/unlock commands */
|
2008-07-23 19:56:01 +02:00
|
|
|
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) {
|
2005-04-17 00:20:36 +02:00
|
|
|
idefloppy_create_prevent_cmd(&pc, 1);
|
|
|
|
(void) idefloppy_queue_pc_tail(drive, &pc);
|
|
|
|
}
|
|
|
|
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;
|
|
|
|
struct ide_floppy_obj *floppy = ide_floppy_g(disk);
|
|
|
|
ide_drive_t *drive = floppy->drive;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc pc;
|
2008-02-02 19:56:34 +01:00
|
|
|
|
|
|
|
debug_log("Reached %s\n", __func__);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2007-02-17 02:40:24 +01:00
|
|
|
if (floppy->openers == 1) {
|
2005-04-17 00:20:36 +02:00
|
|
|
/* IOMEGA Clik! drives do not support lock/unlock commands */
|
2008-07-23 19:56:01 +02:00
|
|
|
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) {
|
2005-04-17 00:20:36 +02:00
|
|
|
idefloppy_create_prevent_cmd(&pc, 0);
|
|
|
|
(void) idefloppy_queue_pc_tail(drive, &pc);
|
|
|
|
}
|
|
|
|
|
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)
|
|
|
|
{
|
|
|
|
struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk);
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2008-07-23 19:56:01 +02:00
|
|
|
static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc,
|
|
|
|
unsigned long arg, unsigned int cmd)
|
2008-02-02 19:56:35 +01:00
|
|
|
{
|
2008-07-23 19:56:01 +02:00
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
|
|
|
|
2008-02-02 19:56:35 +01:00
|
|
|
if (floppy->openers > 1)
|
|
|
|
return -EBUSY;
|
|
|
|
|
|
|
|
/* The IOMEGA Clik! Drive doesn't support this command -
|
|
|
|
* no room for an eject mechanism */
|
2008-07-23 19:56:01 +02:00
|
|
|
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) {
|
2008-02-02 19:56:35 +01:00
|
|
|
int prevent = arg ? 1 : 0;
|
|
|
|
|
|
|
|
if (cmd == CDROMEJECT)
|
|
|
|
prevent = 0;
|
|
|
|
|
|
|
|
idefloppy_create_prevent_cmd(pc, prevent);
|
|
|
|
(void) idefloppy_queue_pc_tail(floppy->drive, pc);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (cmd == CDROMEJECT) {
|
|
|
|
idefloppy_create_start_stop_cmd(pc, 2);
|
|
|
|
(void) idefloppy_queue_pc_tail(floppy->drive, pc);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-10-10 22:39:34 +02:00
|
|
|
static int ide_floppy_format_unit(ide_drive_t *drive, int __user *arg)
|
2008-02-02 19:56:35 +01:00
|
|
|
{
|
2008-10-10 22:39:34 +02:00
|
|
|
idefloppy_floppy_t *floppy = drive->driver_data;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc pc;
|
2008-07-23 19:56:01 +02:00
|
|
|
int blocks, length, flags, err = 0;
|
2008-02-02 19:56:35 +01:00
|
|
|
|
|
|
|
if (floppy->openers > 1) {
|
|
|
|
/* Don't format if someone is using the disk */
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
|
2008-02-02 19:56:35 +01:00
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags |= IDE_AFLAG_FORMAT_IN_PROGRESS;
|
2008-02-02 19:56:35 +01:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Send ATAPI_FORMAT_UNIT to the drive.
|
|
|
|
*
|
|
|
|
* Userland gives us the following structure:
|
|
|
|
*
|
|
|
|
* struct idefloppy_format_command {
|
|
|
|
* int nblocks;
|
|
|
|
* int blocksize;
|
|
|
|
* int flags;
|
|
|
|
* } ;
|
|
|
|
*
|
|
|
|
* flags is a bitmask, currently, the only defined flag is:
|
|
|
|
*
|
|
|
|
* 0x01 - verify media after format.
|
|
|
|
*/
|
|
|
|
if (get_user(blocks, arg) ||
|
|
|
|
get_user(length, arg+1) ||
|
|
|
|
get_user(flags, arg+2)) {
|
|
|
|
err = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2008-07-23 19:56:01 +02:00
|
|
|
(void) idefloppy_get_sfrp_bit(drive);
|
2008-02-02 19:56:35 +01:00
|
|
|
idefloppy_create_format_unit_cmd(&pc, blocks, length, flags);
|
|
|
|
|
2008-07-23 19:56:01 +02:00
|
|
|
if (idefloppy_queue_pc_tail(drive, &pc))
|
2008-02-02 19:56:35 +01:00
|
|
|
err = -EIO;
|
|
|
|
|
|
|
|
out:
|
|
|
|
if (err)
|
2008-07-23 19:56:01 +02:00
|
|
|
drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
|
2008-02-02 19:56:35 +01:00
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2008-10-10 22:39:34 +02:00
|
|
|
static int ide_floppy_format_ioctl(ide_drive_t *drive, struct file *file,
|
|
|
|
unsigned int cmd, void __user *argp)
|
|
|
|
{
|
|
|
|
switch (cmd) {
|
|
|
|
case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED:
|
|
|
|
return 0;
|
|
|
|
case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY:
|
|
|
|
return ide_floppy_get_format_capacities(drive, argp);
|
|
|
|
case IDEFLOPPY_IOCTL_FORMAT_START:
|
|
|
|
if (!(file->f_mode & 2))
|
|
|
|
return -EPERM;
|
|
|
|
return ide_floppy_format_unit(drive, (int __user *)argp);
|
|
|
|
case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS:
|
|
|
|
return ide_floppy_get_format_progress(drive, argp);
|
|
|
|
default:
|
|
|
|
return -ENOTTY;
|
|
|
|
}
|
|
|
|
}
|
2008-02-02 19:56:35 +01:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
static int idefloppy_ioctl(struct inode *inode, struct file *file,
|
|
|
|
unsigned int cmd, unsigned long arg)
|
|
|
|
{
|
|
|
|
struct block_device *bdev = inode->i_bdev;
|
|
|
|
struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk);
|
|
|
|
ide_drive_t *drive = floppy->drive;
|
2008-04-18 00:46:27 +02:00
|
|
|
struct ide_atapi_pc pc;
|
2005-04-17 00:20:36 +02:00
|
|
|
void __user *argp = (void __user *)arg;
|
2005-11-10 00:25:15 +01:00
|
|
|
int err;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-10-10 22:39:34 +02:00
|
|
|
if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR)
|
2008-07-23 19:56:01 +02:00
|
|
|
return ide_floppy_lockdoor(drive, &pc, arg, cmd);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2008-10-10 22:39:34 +02:00
|
|
|
err = ide_floppy_format_ioctl(drive, file, cmd, argp);
|
|
|
|
if (err != -ENOTTY)
|
|
|
|
return err;
|
2007-07-20 01:11:59 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* skip SCSI_IOCTL_SEND_COMMAND (deprecated)
|
|
|
|
* and CDROM_SEND_PACKET (legacy) ioctls
|
|
|
|
*/
|
|
|
|
if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND)
|
|
|
|
err = scsi_cmd_ioctl(file, bdev->bd_disk->queue,
|
|
|
|
bdev->bd_disk, cmd, argp);
|
|
|
|
|
|
|
|
if (err == -ENOTTY)
|
|
|
|
err = generic_ide_ioctl(drive, file, bdev, cmd, arg);
|
|
|
|
|
|
|
|
return err;
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static int idefloppy_media_changed(struct gendisk *disk)
|
|
|
|
{
|
|
|
|
struct ide_floppy_obj *floppy = ide_floppy_g(disk);
|
|
|
|
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 */
|
|
|
|
if (drive->attach) {
|
|
|
|
drive->attach = 0;
|
|
|
|
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)
|
|
|
|
{
|
|
|
|
struct ide_floppy_obj *floppy = ide_floppy_g(disk);
|
|
|
|
set_capacity(disk, idefloppy_capacity(floppy->drive));
|
|
|
|
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,
|
|
|
|
.ioctl = idefloppy_ioctl,
|
|
|
|
.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)) {
|
2008-02-02 19:56:38 +01:00
|
|
|
printk(KERN_ERR "ide-floppy: %s: not supported by this version"
|
|
|
|
" of ide-floppy\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) {
|
|
|
|
printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy"
|
|
|
|
" structure\n", drive->name);
|
2005-04-17 00:20:36 +02:00
|
|
|
goto failed;
|
|
|
|
}
|
|
|
|
|
|
|
|
g = alloc_disk(1 << PARTN_BITS);
|
|
|
|
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;
|
|
|
|
|
2008-02-02 19:56:38 +01:00
|
|
|
idefloppy_setup(drive, floppy);
|
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;
|
|
|
|
g->flags = drive->removable ? GENHD_FL_REMOVABLE : 0;
|
|
|
|
g->fops = &idefloppy_ops;
|
|
|
|
drive->attach = 1;
|
|
|
|
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
|
|
|
{
|
|
|
|
printk("ide-floppy 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*");
|
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");
|
|
|
|
|