mirror of https://gitee.com/openkylin/linux.git
ide-floppy: factor out generic disk handling code to ide-gd-floppy.c
While at it: - idefloppy_do_request() -> ide_floppy_do_request() - idefloppy_end_request() -> ide_floppy_end_request() - idefloppy_setup() -> ide_floppy_setup() There should be no functional changes caused by this patch. Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
parent
cedd120cac
commit
c84d9bbe7c
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@ -39,7 +39,7 @@ obj-$(CONFIG_BLK_DEV_IDEPNP) += ide-pnp.o
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ide-disk_mod-y += ide-gd.o ide-disk.o ide-disk_ioctl.o
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ide-cd_mod-y += ide-cd.o ide-cd_ioctl.o ide-cd_verbose.o
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ide-floppy_mod-y += ide-floppy.o ide-floppy_ioctl.o
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ide-floppy_mod-y += ide-gd-floppy.o ide-floppy.o ide-floppy_ioctl.o
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ifeq ($(CONFIG_IDE_PROC_FS), y)
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ide-disk_mod-y += ide-disk_proc.o
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@ -15,12 +15,6 @@
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* Documentation/ide/ChangeLog.ide-floppy.1996-2002
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*/
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#define DRV_NAME "ide-floppy"
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#define PFX DRV_NAME ": "
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#define IDEFLOPPY_VERSION "1.00"
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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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@ -49,19 +43,6 @@
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#include "ide-floppy.h"
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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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/* define to see debug info */
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#define IDEFLOPPY_DEBUG_LOG 0
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#if IDEFLOPPY_DEBUG_LOG
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#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
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#else
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#define ide_debug_log(lvl, fmt, args...) do {} while (0)
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#endif
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/*
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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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@ -83,41 +64,11 @@ module_param(debug_mask, ulong, 0644);
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/* Error code returned in rq->errors to the higher part of the driver. */
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#define IDEFLOPPY_ERROR_GENERAL 101
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static DEFINE_MUTEX(idefloppy_ref_mutex);
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static void idefloppy_cleanup_obj(struct kref *);
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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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mutex_lock(&idefloppy_ref_mutex);
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floppy = ide_drv_g(disk, ide_floppy_obj);
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if (floppy) {
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if (ide_device_get(floppy->drive))
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floppy = NULL;
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else
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kref_get(&floppy->kref);
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}
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mutex_unlock(&idefloppy_ref_mutex);
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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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ide_drive_t *drive = floppy->drive;
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mutex_lock(&idefloppy_ref_mutex);
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kref_put(&floppy->kref, idefloppy_cleanup_obj);
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ide_device_put(drive);
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mutex_unlock(&idefloppy_ref_mutex);
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}
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/*
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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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*/
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static int idefloppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
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int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
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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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@ -161,7 +112,7 @@ static void idefloppy_update_buffers(ide_drive_t *drive,
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struct bio *bio = rq->bio;
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while ((bio = rq->bio) != NULL)
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idefloppy_end_request(drive, 1, 0);
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ide_floppy_end_request(drive, 1, 0);
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}
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static void ide_floppy_callback(ide_drive_t *drive, int dsc)
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@ -200,7 +151,7 @@ static void ide_floppy_callback(ide_drive_t *drive, int dsc)
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"Aborting request!\n");
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}
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idefloppy_end_request(drive, uptodate, 0);
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ide_floppy_end_request(drive, uptodate, 0);
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}
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static void ide_floppy_report_error(idefloppy_floppy_t *floppy,
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@ -329,8 +280,8 @@ static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy,
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pc->req_xfer = pc->buf_size = rq->data_len;
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}
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static ide_startstop_t idefloppy_do_request(ide_drive_t *drive,
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struct request *rq, sector_t block_s)
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ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, struct request *rq,
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sector_t block_s)
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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ide_hwif_t *hwif = drive->hwif;
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@ -353,7 +304,7 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive,
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else
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printk(KERN_ERR PFX "%s: I/O error\n", drive->name);
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idefloppy_end_request(drive, 0, 0);
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ide_floppy_end_request(drive, 0, 0);
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return ide_stopped;
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}
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if (blk_fs_request(rq)) {
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@ -361,7 +312,7 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive,
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(rq->nr_sectors % floppy->bs_factor)) {
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printk(KERN_ERR PFX "%s: unsupported r/w rq size\n",
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drive->name);
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idefloppy_end_request(drive, 0, 0);
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ide_floppy_end_request(drive, 0, 0);
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return ide_stopped;
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}
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pc = &floppy->queued_pc;
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@ -373,7 +324,7 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive,
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idefloppy_blockpc_cmd(floppy, pc, rq);
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} else {
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blk_dump_rq_flags(rq, PFX "unsupported command in queue");
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idefloppy_end_request(drive, 0, 0);
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ide_floppy_end_request(drive, 0, 0);
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return ide_stopped;
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}
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@ -455,7 +406,7 @@ static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive)
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* Determine if a media is present in the floppy drive, and if so, its LBA
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* capacity.
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*/
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static int ide_floppy_get_capacity(ide_drive_t *drive)
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int ide_floppy_get_capacity(ide_drive_t *drive)
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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struct gendisk *disk = floppy->disk;
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@ -554,12 +505,7 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
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return rc;
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}
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sector_t ide_floppy_capacity(ide_drive_t *drive)
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{
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return drive->capacity64;
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}
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static void idefloppy_setup(ide_drive_t *drive)
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void ide_floppy_setup(ide_drive_t *drive)
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{
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struct ide_floppy_obj *floppy = drive->driver_data;
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u16 *id = drive->id;
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@ -601,248 +547,3 @@ static void idefloppy_setup(ide_drive_t *drive)
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drive->dev_flags |= IDE_DFLAG_ATTACH;
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}
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static void ide_floppy_remove(ide_drive_t *drive)
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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struct gendisk *g = floppy->disk;
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ide_proc_unregister_driver(drive, floppy->driver);
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del_gendisk(g);
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ide_floppy_put(floppy);
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}
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static void idefloppy_cleanup_obj(struct kref *kref)
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{
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struct ide_floppy_obj *floppy = to_ide_drv(kref, ide_floppy_obj);
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ide_drive_t *drive = floppy->drive;
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struct gendisk *g = floppy->disk;
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drive->driver_data = NULL;
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g->private_data = NULL;
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put_disk(g);
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kfree(floppy);
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}
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static int ide_floppy_probe(ide_drive_t *);
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static ide_driver_t idefloppy_driver = {
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.gen_driver = {
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.owner = THIS_MODULE,
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.name = "ide-floppy",
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.bus = &ide_bus_type,
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},
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.probe = ide_floppy_probe,
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.remove = ide_floppy_remove,
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.version = IDEFLOPPY_VERSION,
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.do_request = idefloppy_do_request,
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.end_request = idefloppy_end_request,
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.error = __ide_error,
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#ifdef CONFIG_IDE_PROC_FS
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.proc = ide_floppy_proc,
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.settings = ide_floppy_settings,
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#endif
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};
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static int idefloppy_open(struct inode *inode, struct file *filp)
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{
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struct gendisk *disk = inode->i_bdev->bd_disk;
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struct ide_floppy_obj *floppy;
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ide_drive_t *drive;
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int ret = 0;
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floppy = ide_floppy_get(disk);
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if (!floppy)
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return -ENXIO;
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drive = floppy->drive;
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ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
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floppy->openers++;
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if (floppy->openers == 1) {
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drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
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/* Just in case */
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if (ide_do_test_unit_ready(drive, disk))
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ide_do_start_stop(drive, disk, 1);
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ret = ide_floppy_get_capacity(drive);
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set_capacity(disk, ide_floppy_capacity(drive));
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if (ret && (filp->f_flags & O_NDELAY) == 0) {
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/*
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* Allow O_NDELAY to open a drive without a disk, or with an
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* unreadable disk, so that we can get the format capacity
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* of the drive or begin the format - Sam
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*/
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ret = -EIO;
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goto out_put_floppy;
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}
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if ((drive->dev_flags & IDE_DFLAG_WP) && (filp->f_mode & 2)) {
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ret = -EROFS;
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goto out_put_floppy;
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}
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ide_set_media_lock(drive, disk, 1);
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drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
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check_disk_change(inode->i_bdev);
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} else if (drive->dev_flags & IDE_DFLAG_FORMAT_IN_PROGRESS) {
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ret = -EBUSY;
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goto out_put_floppy;
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}
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return 0;
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out_put_floppy:
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floppy->openers--;
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ide_floppy_put(floppy);
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return ret;
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}
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static int idefloppy_release(struct inode *inode, struct file *filp)
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{
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struct gendisk *disk = inode->i_bdev->bd_disk;
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struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
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ide_drive_t *drive = floppy->drive;
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ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
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if (floppy->openers == 1) {
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ide_set_media_lock(drive, disk, 0);
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drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
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}
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floppy->openers--;
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ide_floppy_put(floppy);
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return 0;
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}
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static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo)
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{
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struct ide_floppy_obj *floppy = ide_drv_g(bdev->bd_disk,
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ide_floppy_obj);
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ide_drive_t *drive = floppy->drive;
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geo->heads = drive->bios_head;
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geo->sectors = drive->bios_sect;
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geo->cylinders = (u16)drive->bios_cyl; /* truncate */
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return 0;
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}
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static int idefloppy_media_changed(struct gendisk *disk)
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{
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struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
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ide_drive_t *drive = floppy->drive;
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int ret;
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/* do not scan partitions twice if this is a removable device */
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if (drive->dev_flags & IDE_DFLAG_ATTACH) {
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drive->dev_flags &= ~IDE_DFLAG_ATTACH;
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return 0;
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}
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ret = !!(drive->dev_flags & IDE_DFLAG_MEDIA_CHANGED);
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drive->dev_flags &= ~IDE_DFLAG_MEDIA_CHANGED;
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return ret;
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}
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static int idefloppy_revalidate_disk(struct gendisk *disk)
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{
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struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
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set_capacity(disk, ide_floppy_capacity(floppy->drive));
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return 0;
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}
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static struct block_device_operations idefloppy_ops = {
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.owner = THIS_MODULE,
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.open = idefloppy_open,
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.release = idefloppy_release,
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.ioctl = ide_floppy_ioctl,
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.getgeo = idefloppy_getgeo,
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.media_changed = idefloppy_media_changed,
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.revalidate_disk = idefloppy_revalidate_disk
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};
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static int ide_floppy_probe(ide_drive_t *drive)
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{
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idefloppy_floppy_t *floppy;
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struct gendisk *g;
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if (!strstr("ide-floppy", drive->driver_req))
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goto failed;
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if (drive->media != ide_floppy)
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goto failed;
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if (!ide_check_atapi_device(drive, DRV_NAME)) {
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printk(KERN_ERR PFX "%s: not supported by this version of "
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DRV_NAME "\n", drive->name);
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goto failed;
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}
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floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL);
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if (!floppy) {
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printk(KERN_ERR PFX "%s: Can't allocate a floppy structure\n",
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drive->name);
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goto failed;
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}
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g = alloc_disk_node(1 << PARTN_BITS, hwif_to_node(drive->hwif));
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if (!g)
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goto out_free_floppy;
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ide_init_disk(g, drive);
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kref_init(&floppy->kref);
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floppy->drive = drive;
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floppy->driver = &idefloppy_driver;
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floppy->disk = g;
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g->private_data = &floppy->driver;
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drive->driver_data = floppy;
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drive->debug_mask = debug_mask;
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idefloppy_setup(drive);
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set_capacity(g, ide_floppy_capacity(drive));
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g->minors = 1 << PARTN_BITS;
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g->driverfs_dev = &drive->gendev;
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if (drive->dev_flags & IDE_DFLAG_REMOVABLE)
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g->flags = GENHD_FL_REMOVABLE;
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g->fops = &idefloppy_ops;
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add_disk(g);
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return 0;
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out_free_floppy:
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kfree(floppy);
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failed:
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return -ENODEV;
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}
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static void __exit idefloppy_exit(void)
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{
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driver_unregister(&idefloppy_driver.gen_driver);
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}
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static int __init idefloppy_init(void)
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{
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printk(KERN_INFO DRV_NAME " driver " IDEFLOPPY_VERSION "\n");
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return driver_register(&idefloppy_driver.gen_driver);
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}
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MODULE_ALIAS("ide:*m-floppy*");
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MODULE_ALIAS("ide-floppy");
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module_init(idefloppy_init);
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module_exit(idefloppy_exit);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("ATAPI FLOPPY Driver");
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@ -1,6 +1,18 @@
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#ifndef __IDE_FLOPPY_H
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#define __IDE_FLOPPY_H
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#define DRV_NAME "ide-floppy"
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#define PFX DRV_NAME ": "
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/* define to see debug info */
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#define IDEFLOPPY_DEBUG_LOG 0
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#if IDEFLOPPY_DEBUG_LOG
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#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
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#else
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#define ide_debug_log(lvl, fmt, args...) do {} while (0)
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#endif
|
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/*
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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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|
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@ -45,10 +57,15 @@ typedef struct ide_floppy_obj {
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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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|
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sector_t ide_floppy_capacity(ide_drive_t *);
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|
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/* ide-floppy.c */
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void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *, u8);
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void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *);
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sector_t ide_floppy_capacity(ide_drive_t *);
|
||||
int ide_floppy_get_capacity(ide_drive_t *);
|
||||
void ide_floppy_setup(ide_drive_t *);
|
||||
ide_startstop_t ide_floppy_do_request(ide_drive_t *, struct request *, sector_t);
|
||||
int ide_floppy_end_request(ide_drive_t *, int, int);
|
||||
|
||||
/* ide-floppy_ioctl.c */
|
||||
int ide_floppy_ioctl(struct inode *, struct file *, unsigned, unsigned long);
|
||||
|
|
|
|||
|
|
@ -0,0 +1,298 @@
|
|||
#include <linux/module.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/genhd.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/ide.h>
|
||||
#include <linux/hdreg.h>
|
||||
|
||||
#include "ide-floppy.h"
|
||||
|
||||
#define IDEFLOPPY_VERSION "1.00"
|
||||
|
||||
/* module parameters */
|
||||
static unsigned long debug_mask;
|
||||
module_param(debug_mask, ulong, 0644);
|
||||
|
||||
static DEFINE_MUTEX(idefloppy_ref_mutex);
|
||||
|
||||
static void idefloppy_cleanup_obj(struct kref *);
|
||||
|
||||
static struct ide_floppy_obj *ide_floppy_get(struct gendisk *disk)
|
||||
{
|
||||
struct ide_floppy_obj *floppy = NULL;
|
||||
|
||||
mutex_lock(&idefloppy_ref_mutex);
|
||||
floppy = ide_drv_g(disk, ide_floppy_obj);
|
||||
if (floppy) {
|
||||
if (ide_device_get(floppy->drive))
|
||||
floppy = NULL;
|
||||
else
|
||||
kref_get(&floppy->kref);
|
||||
}
|
||||
mutex_unlock(&idefloppy_ref_mutex);
|
||||
return floppy;
|
||||
}
|
||||
|
||||
static void ide_floppy_put(struct ide_floppy_obj *floppy)
|
||||
{
|
||||
ide_drive_t *drive = floppy->drive;
|
||||
|
||||
mutex_lock(&idefloppy_ref_mutex);
|
||||
kref_put(&floppy->kref, idefloppy_cleanup_obj);
|
||||
ide_device_put(drive);
|
||||
mutex_unlock(&idefloppy_ref_mutex);
|
||||
}
|
||||
|
||||
sector_t ide_floppy_capacity(ide_drive_t *drive)
|
||||
{
|
||||
return drive->capacity64;
|
||||
}
|
||||
|
||||
static void ide_floppy_remove(ide_drive_t *drive)
|
||||
{
|
||||
idefloppy_floppy_t *floppy = drive->driver_data;
|
||||
struct gendisk *g = floppy->disk;
|
||||
|
||||
ide_proc_unregister_driver(drive, floppy->driver);
|
||||
|
||||
del_gendisk(g);
|
||||
|
||||
ide_floppy_put(floppy);
|
||||
}
|
||||
|
||||
static void idefloppy_cleanup_obj(struct kref *kref)
|
||||
{
|
||||
struct ide_floppy_obj *floppy = to_ide_drv(kref, ide_floppy_obj);
|
||||
ide_drive_t *drive = floppy->drive;
|
||||
struct gendisk *g = floppy->disk;
|
||||
|
||||
drive->driver_data = NULL;
|
||||
g->private_data = NULL;
|
||||
put_disk(g);
|
||||
kfree(floppy);
|
||||
}
|
||||
|
||||
static int ide_floppy_probe(ide_drive_t *);
|
||||
|
||||
static ide_driver_t idefloppy_driver = {
|
||||
.gen_driver = {
|
||||
.owner = THIS_MODULE,
|
||||
.name = "ide-floppy",
|
||||
.bus = &ide_bus_type,
|
||||
},
|
||||
.probe = ide_floppy_probe,
|
||||
.remove = ide_floppy_remove,
|
||||
.version = IDEFLOPPY_VERSION,
|
||||
.do_request = ide_floppy_do_request,
|
||||
.end_request = ide_floppy_end_request,
|
||||
.error = __ide_error,
|
||||
#ifdef CONFIG_IDE_PROC_FS
|
||||
.proc = ide_floppy_proc,
|
||||
.settings = ide_floppy_settings,
|
||||
#endif
|
||||
};
|
||||
|
||||
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;
|
||||
|
||||
floppy = ide_floppy_get(disk);
|
||||
if (!floppy)
|
||||
return -ENXIO;
|
||||
|
||||
drive = floppy->drive;
|
||||
|
||||
ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
|
||||
|
||||
floppy->openers++;
|
||||
|
||||
if (floppy->openers == 1) {
|
||||
drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
|
||||
/* Just in case */
|
||||
|
||||
if (ide_do_test_unit_ready(drive, disk))
|
||||
ide_do_start_stop(drive, disk, 1);
|
||||
|
||||
ret = ide_floppy_get_capacity(drive);
|
||||
|
||||
set_capacity(disk, ide_floppy_capacity(drive));
|
||||
|
||||
if (ret && (filp->f_flags & O_NDELAY) == 0) {
|
||||
/*
|
||||
* 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
|
||||
*/
|
||||
ret = -EIO;
|
||||
goto out_put_floppy;
|
||||
}
|
||||
|
||||
if ((drive->dev_flags & IDE_DFLAG_WP) && (filp->f_mode & 2)) {
|
||||
ret = -EROFS;
|
||||
goto out_put_floppy;
|
||||
}
|
||||
|
||||
ide_set_media_lock(drive, disk, 1);
|
||||
drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
|
||||
check_disk_change(inode->i_bdev);
|
||||
} else if (drive->dev_flags & IDE_DFLAG_FORMAT_IN_PROGRESS) {
|
||||
ret = -EBUSY;
|
||||
goto out_put_floppy;
|
||||
}
|
||||
return 0;
|
||||
|
||||
out_put_floppy:
|
||||
floppy->openers--;
|
||||
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_drv_g(disk, ide_floppy_obj);
|
||||
ide_drive_t *drive = floppy->drive;
|
||||
|
||||
ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
|
||||
|
||||
if (floppy->openers == 1) {
|
||||
ide_set_media_lock(drive, disk, 0);
|
||||
drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
|
||||
}
|
||||
|
||||
floppy->openers--;
|
||||
|
||||
ide_floppy_put(floppy);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo)
|
||||
{
|
||||
struct ide_floppy_obj *floppy = ide_drv_g(bdev->bd_disk,
|
||||
ide_floppy_obj);
|
||||
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;
|
||||
}
|
||||
|
||||
static int idefloppy_media_changed(struct gendisk *disk)
|
||||
{
|
||||
struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
|
||||
ide_drive_t *drive = floppy->drive;
|
||||
int ret;
|
||||
|
||||
/* do not scan partitions twice if this is a removable device */
|
||||
if (drive->dev_flags & IDE_DFLAG_ATTACH) {
|
||||
drive->dev_flags &= ~IDE_DFLAG_ATTACH;
|
||||
return 0;
|
||||
}
|
||||
|
||||
ret = !!(drive->dev_flags & IDE_DFLAG_MEDIA_CHANGED);
|
||||
drive->dev_flags &= ~IDE_DFLAG_MEDIA_CHANGED;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int idefloppy_revalidate_disk(struct gendisk *disk)
|
||||
{
|
||||
struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
|
||||
set_capacity(disk, ide_floppy_capacity(floppy->drive));
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct block_device_operations idefloppy_ops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = idefloppy_open,
|
||||
.release = idefloppy_release,
|
||||
.ioctl = ide_floppy_ioctl,
|
||||
.getgeo = idefloppy_getgeo,
|
||||
.media_changed = idefloppy_media_changed,
|
||||
.revalidate_disk = idefloppy_revalidate_disk
|
||||
};
|
||||
|
||||
static int ide_floppy_probe(ide_drive_t *drive)
|
||||
{
|
||||
idefloppy_floppy_t *floppy;
|
||||
struct gendisk *g;
|
||||
|
||||
if (!strstr("ide-floppy", drive->driver_req))
|
||||
goto failed;
|
||||
|
||||
if (drive->media != ide_floppy)
|
||||
goto failed;
|
||||
|
||||
if (!ide_check_atapi_device(drive, DRV_NAME)) {
|
||||
printk(KERN_ERR PFX "%s: not supported by this version of "
|
||||
DRV_NAME "\n", drive->name);
|
||||
goto failed;
|
||||
}
|
||||
floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL);
|
||||
if (!floppy) {
|
||||
printk(KERN_ERR PFX "%s: Can't allocate a floppy structure\n",
|
||||
drive->name);
|
||||
goto failed;
|
||||
}
|
||||
|
||||
g = alloc_disk_node(1 << PARTN_BITS, hwif_to_node(drive->hwif));
|
||||
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;
|
||||
|
||||
drive->debug_mask = debug_mask;
|
||||
|
||||
ide_floppy_setup(drive);
|
||||
|
||||
set_capacity(g, ide_floppy_capacity(drive));
|
||||
|
||||
g->minors = 1 << PARTN_BITS;
|
||||
g->driverfs_dev = &drive->gendev;
|
||||
if (drive->dev_flags & IDE_DFLAG_REMOVABLE)
|
||||
g->flags = GENHD_FL_REMOVABLE;
|
||||
g->fops = &idefloppy_ops;
|
||||
add_disk(g);
|
||||
return 0;
|
||||
|
||||
out_free_floppy:
|
||||
kfree(floppy);
|
||||
failed:
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static int __init idefloppy_init(void)
|
||||
{
|
||||
printk(KERN_INFO DRV_NAME " driver " IDEFLOPPY_VERSION "\n");
|
||||
return driver_register(&idefloppy_driver.gen_driver);
|
||||
}
|
||||
|
||||
static void __exit idefloppy_exit(void)
|
||||
{
|
||||
driver_unregister(&idefloppy_driver.gen_driver);
|
||||
}
|
||||
|
||||
MODULE_ALIAS("ide:*m-floppy*");
|
||||
MODULE_ALIAS("ide-floppy");
|
||||
module_init(idefloppy_init);
|
||||
module_exit(idefloppy_exit);
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("ATAPI FLOPPY Driver");
|
||||
Loading…
Reference in New Issue