* Documentation/ide/ChangeLog.ide-floppy.1996-2002
*/
-#define DRV_NAME "ide-floppy"
-#define PFX DRV_NAME ": "
-
-#define IDEFLOPPY_VERSION "1.00"
-
-#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include "ide-floppy.h"
-/* module parameters */
-static unsigned long debug_mask;
-module_param(debug_mask, ulong, 0644);
-
-/* define to see debug info */
-#define IDEFLOPPY_DEBUG_LOG 0
-
-#if IDEFLOPPY_DEBUG_LOG
-#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
-#else
-#define ide_debug_log(lvl, fmt, args...) do {} while (0)
-#endif
-
/*
* After each failed packet command we issue a request sense command and retry
* the packet command IDEFLOPPY_MAX_PC_RETRIES times.
/* Error code returned in rq->errors to the higher part of the driver. */
#define IDEFLOPPY_ERROR_GENERAL 101
-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);
-}
-
/*
* Used to finish servicing a request. For read/write requests, we will call
* ide_end_request to pass to the next buffer.
*/
-static int idefloppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
+static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
{
- idefloppy_floppy_t *floppy = drive->driver_data;
+ struct ide_disk_obj *floppy = drive->driver_data;
struct request *rq = HWGROUP(drive)->rq;
int error;
struct bio *bio = rq->bio;
while ((bio = rq->bio) != NULL)
- idefloppy_end_request(drive, 1, 0);
+ ide_floppy_end_request(drive, 1, 0);
}
static void ide_floppy_callback(ide_drive_t *drive, int dsc)
{
- idefloppy_floppy_t *floppy = drive->driver_data;
+ struct ide_disk_obj *floppy = drive->driver_data;
struct ide_atapi_pc *pc = drive->pc;
int uptodate = pc->error ? 0 : 1;
"Aborting request!\n");
}
- idefloppy_end_request(drive, uptodate, 0);
+ ide_floppy_end_request(drive, uptodate, 0);
}
-static void ide_floppy_report_error(idefloppy_floppy_t *floppy,
+static void ide_floppy_report_error(struct ide_disk_obj *floppy,
struct ide_atapi_pc *pc)
{
/* supress error messages resulting from Medium not present */
static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
struct ide_atapi_pc *pc)
{
- idefloppy_floppy_t *floppy = drive->driver_data;
+ struct ide_disk_obj *floppy = drive->driver_data;
if (floppy->failed_pc == NULL &&
pc->c[0] != GPCMD_REQUEST_SENSE)
struct ide_atapi_pc *pc, struct request *rq,
unsigned long sector)
{
- idefloppy_floppy_t *floppy = drive->driver_data;
+ struct ide_disk_obj *floppy = drive->driver_data;
int block = sector / floppy->bs_factor;
int blocks = rq->nr_sectors / floppy->bs_factor;
int cmd = rq_data_dir(rq);
pc->flags |= PC_FLAG_DMA_OK;
}
-static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy,
+static void idefloppy_blockpc_cmd(struct ide_disk_obj *floppy,
struct ide_atapi_pc *pc, struct request *rq)
{
ide_init_pc(pc);
pc->req_xfer = pc->buf_size = rq->data_len;
}
-static ide_startstop_t idefloppy_do_request(ide_drive_t *drive,
- struct request *rq, sector_t block_s)
+static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
+ struct request *rq, sector_t block)
{
- idefloppy_floppy_t *floppy = drive->driver_data;
+ struct ide_disk_obj *floppy = drive->driver_data;
ide_hwif_t *hwif = drive->hwif;
struct ide_atapi_pc *pc;
- unsigned long block = (unsigned long)block_s;
ide_debug_log(IDE_DBG_FUNC, "%s: dev: %s, cmd: 0x%x, cmd_type: %x, "
"errors: %d\n",
else
printk(KERN_ERR PFX "%s: I/O error\n", drive->name);
- idefloppy_end_request(drive, 0, 0);
+ ide_floppy_end_request(drive, 0, 0);
return ide_stopped;
}
if (blk_fs_request(rq)) {
(rq->nr_sectors % floppy->bs_factor)) {
printk(KERN_ERR PFX "%s: unsupported r/w rq size\n",
drive->name);
- idefloppy_end_request(drive, 0, 0);
+ ide_floppy_end_request(drive, 0, 0);
return ide_stopped;
}
pc = &floppy->queued_pc;
- idefloppy_create_rw_cmd(drive, pc, rq, block);
+ idefloppy_create_rw_cmd(drive, pc, rq, (unsigned long)block);
} else if (blk_special_request(rq)) {
pc = (struct ide_atapi_pc *) rq->buffer;
} else if (blk_pc_request(rq)) {
idefloppy_blockpc_cmd(floppy, pc, rq);
} else {
blk_dump_rq_flags(rq, PFX "unsupported command in queue");
- idefloppy_end_request(drive, 0, 0);
+ ide_floppy_end_request(drive, 0, 0);
return ide_stopped;
}
*/
static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive)
{
- idefloppy_floppy_t *floppy = drive->driver_data;
+ struct ide_disk_obj *floppy = drive->driver_data;
struct gendisk *disk = floppy->disk;
struct ide_atapi_pc pc;
u8 *page;
}
if (pc.buf[3] & 0x80)
- drive->atapi_flags |= IDE_AFLAG_WP;
+ drive->dev_flags |= IDE_DFLAG_WP;
else
- drive->atapi_flags &= ~IDE_AFLAG_WP;
+ drive->dev_flags &= ~IDE_DFLAG_WP;
- set_disk_ro(disk, !!(drive->atapi_flags & IDE_AFLAG_WP));
+ set_disk_ro(disk, !!(drive->dev_flags & IDE_DFLAG_WP));
page = &pc.buf[8];
drive->name, lba_capacity, capacity);
floppy->blocks = floppy->block_size ?
capacity / floppy->block_size : 0;
+ drive->capacity64 = floppy->blocks * floppy->bs_factor;
}
+
return 0;
}
*/
static int ide_floppy_get_capacity(ide_drive_t *drive)
{
- idefloppy_floppy_t *floppy = drive->driver_data;
+ struct ide_disk_obj *floppy = drive->driver_data;
struct gendisk *disk = floppy->disk;
struct ide_atapi_pc pc;
u8 *cap_desc;
drive->bios_head = drive->bios_sect = 0;
floppy->blocks = 0;
floppy->bs_factor = 1;
- set_capacity(floppy->disk, 0);
+ drive->capacity64 = 0;
ide_floppy_create_read_capacity_cmd(&pc);
if (ide_queue_pc_tail(drive, disk, &pc)) {
"non 512 bytes block size not "
"fully supported\n",
drive->name);
+ drive->capacity64 =
+ floppy->blocks * floppy->bs_factor;
rc = 0;
}
break;
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE))
(void) ide_floppy_get_flexible_disk_page(drive);
- set_capacity(disk, floppy->blocks * floppy->bs_factor);
-
return rc;
}
-sector_t ide_floppy_capacity(ide_drive_t *drive)
-{
- idefloppy_floppy_t *floppy = drive->driver_data;
- unsigned long capacity = floppy->blocks * floppy->bs_factor;
-
- return capacity;
-}
-
-static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy)
+static void ide_floppy_setup(ide_drive_t *drive)
{
+ struct ide_disk_obj *floppy = drive->driver_data;
u16 *id = drive->id;
drive->pc_callback = ide_floppy_callback;
blk_queue_max_sectors(drive->queue, 64);
drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE;
/* IOMEGA Clik! drives do not support lock/unlock commands */
- drive->atapi_flags |= IDE_AFLAG_NO_DOORLOCK;
+ drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
}
(void) ide_floppy_get_capacity(drive);
ide_proc_register_driver(drive, floppy->driver);
-}
-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);
+ drive->dev_flags |= IDE_DFLAG_ATTACH;
}
-static void idefloppy_cleanup_obj(struct kref *kref)
+static void ide_floppy_flush(ide_drive_t *drive)
{
- 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 = idefloppy_do_request,
- .end_request = idefloppy_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)
+static int ide_floppy_init_media(ide_drive_t *drive, struct gendisk *disk)
{
- 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->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
- /* Just in case */
-
- if (ide_do_test_unit_ready(drive, disk))
- ide_do_start_stop(drive, disk, 1);
-
- if (ide_floppy_get_capacity(drive)
- && (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->atapi_flags & IDE_AFLAG_WP) && (filp->f_mode & 2)) {
- ret = -EROFS;
- goto out_put_floppy;
- }
-
- drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED;
- ide_set_media_lock(drive, disk, 1);
- check_disk_change(inode->i_bdev);
- } else if (drive->atapi_flags & IDE_AFLAG_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->atapi_flags &= ~IDE_AFLAG_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;
+ if (ide_do_test_unit_ready(drive, disk))
+ ide_do_start_stop(drive, disk, 1);
- geo->heads = drive->bios_head;
- geo->sectors = drive->bios_sect;
- geo->cylinders = (u16)drive->bios_cyl; /* truncate */
- return 0;
-}
+ ret = ide_floppy_get_capacity(drive);
-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;
+ set_capacity(disk, ide_gd_capacity(drive));
- /* 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->atapi_flags & IDE_AFLAG_MEDIA_CHANGED);
- drive->atapi_flags &= ~IDE_AFLAG_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
+const struct ide_disk_ops ide_atapi_disk_ops = {
+ .check = ide_check_atapi_device,
+ .get_capacity = ide_floppy_get_capacity,
+ .setup = ide_floppy_setup,
+ .flush = ide_floppy_flush,
+ .init_media = ide_floppy_init_media,
+ .set_doorlock = ide_set_media_lock,
+ .do_request = ide_floppy_do_request,
+ .end_request = ide_floppy_end_request,
+ .ioctl = ide_floppy_ioctl,
};
-
-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(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;
-
- drive->debug_mask = debug_mask;
-
- idefloppy_setup(drive, floppy);
- drive->dev_flags |= IDE_DFLAG_ATTACH;
-
- 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 void __exit idefloppy_exit(void)
-{
- driver_unregister(&idefloppy_driver.gen_driver);
-}
-
-static int __init idefloppy_init(void)
-{
- printk(KERN_INFO DRV_NAME " driver " IDEFLOPPY_VERSION "\n");
- return driver_register(&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");
-
projects / linux-2.6-omap-h63xx.git / blobdiff