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path: root/drivers/ide/ide-gd.c
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Diffstat (limited to 'drivers/ide/ide-gd.c')
-rw-r--r--drivers/ide/ide-gd.c432
1 files changed, 0 insertions, 432 deletions
diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c
deleted file mode 100644
index e2b6c82586ce..000000000000
--- a/drivers/ide/ide-gd.c
+++ /dev/null
@@ -1,432 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-#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 <linux/dmi.h>
-#include <linux/slab.h>
-
-#if !defined(CONFIG_DEBUG_BLOCK_EXT_DEVT)
-#define IDE_DISK_MINORS (1 << PARTN_BITS)
-#else
-#define IDE_DISK_MINORS 0
-#endif
-
-#include "ide-disk.h"
-#include "ide-floppy.h"
-
-#define IDE_GD_VERSION "1.18"
-
-/* module parameters */
-static DEFINE_MUTEX(ide_gd_mutex);
-static unsigned long debug_mask;
-module_param(debug_mask, ulong, 0644);
-
-static DEFINE_MUTEX(ide_disk_ref_mutex);
-
-static void ide_disk_release(struct device *);
-
-static struct ide_disk_obj *ide_disk_get(struct gendisk *disk)
-{
- struct ide_disk_obj *idkp = NULL;
-
- mutex_lock(&ide_disk_ref_mutex);
- idkp = ide_drv_g(disk, ide_disk_obj);
- if (idkp) {
- if (ide_device_get(idkp->drive))
- idkp = NULL;
- else
- get_device(&idkp->dev);
- }
- mutex_unlock(&ide_disk_ref_mutex);
- return idkp;
-}
-
-static void ide_disk_put(struct ide_disk_obj *idkp)
-{
- ide_drive_t *drive = idkp->drive;
-
- mutex_lock(&ide_disk_ref_mutex);
- put_device(&idkp->dev);
- ide_device_put(drive);
- mutex_unlock(&ide_disk_ref_mutex);
-}
-
-sector_t ide_gd_capacity(ide_drive_t *drive)
-{
- return drive->capacity64;
-}
-
-static int ide_gd_probe(ide_drive_t *);
-
-static void ide_gd_remove(ide_drive_t *drive)
-{
- struct ide_disk_obj *idkp = drive->driver_data;
- struct gendisk *g = idkp->disk;
-
- ide_proc_unregister_driver(drive, idkp->driver);
- device_del(&idkp->dev);
- del_gendisk(g);
- drive->disk_ops->flush(drive);
-
- mutex_lock(&ide_disk_ref_mutex);
- put_device(&idkp->dev);
- mutex_unlock(&ide_disk_ref_mutex);
-}
-
-static void ide_disk_release(struct device *dev)
-{
- struct ide_disk_obj *idkp = to_ide_drv(dev, ide_disk_obj);
- ide_drive_t *drive = idkp->drive;
- struct gendisk *g = idkp->disk;
-
- drive->disk_ops = NULL;
- drive->driver_data = NULL;
- g->private_data = NULL;
- put_disk(g);
- kfree(idkp);
-}
-
-/*
- * On HPA drives the capacity needs to be
- * reinitialized on resume otherwise the disk
- * can not be used and a hard reset is required
- */
-static void ide_gd_resume(ide_drive_t *drive)
-{
- if (ata_id_hpa_enabled(drive->id))
- (void)drive->disk_ops->get_capacity(drive);
-}
-
-static const struct dmi_system_id ide_coldreboot_table[] = {
- {
- /* Acer TravelMate 66x cuts power during reboot */
- .ident = "Acer TravelMate 660",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
- },
- },
-
- { } /* terminate list */
-};
-
-static void ide_gd_shutdown(ide_drive_t *drive)
-{
-#ifdef CONFIG_ALPHA
- /* On Alpha, halt(8) doesn't actually turn the machine off,
- it puts you into the sort of firmware monitor. Typically,
- it's used to boot another kernel image, so it's not much
- different from reboot(8). Therefore, we don't need to
- spin down the disk in this case, especially since Alpha
- firmware doesn't handle disks in standby mode properly.
- On the other hand, it's reasonably safe to turn the power
- off when the shutdown process reaches the firmware prompt,
- as the firmware initialization takes rather long time -
- at least 10 seconds, which should be sufficient for
- the disk to expire its write cache. */
- if (system_state != SYSTEM_POWER_OFF) {
-#else
- if (system_state == SYSTEM_RESTART &&
- !dmi_check_system(ide_coldreboot_table)) {
-#endif
- drive->disk_ops->flush(drive);
- return;
- }
-
- printk(KERN_INFO "Shutdown: %s\n", drive->name);
-
- drive->gendev.bus->suspend(&drive->gendev, PMSG_SUSPEND);
-}
-
-#ifdef CONFIG_IDE_PROC_FS
-static ide_proc_entry_t *ide_disk_proc_entries(ide_drive_t *drive)
-{
- return (drive->media == ide_disk) ? ide_disk_proc : ide_floppy_proc;
-}
-
-static const struct ide_proc_devset *ide_disk_proc_devsets(ide_drive_t *drive)
-{
- return (drive->media == ide_disk) ? ide_disk_settings
- : ide_floppy_settings;
-}
-#endif
-
-static ide_startstop_t ide_gd_do_request(ide_drive_t *drive,
- struct request *rq, sector_t sector)
-{
- return drive->disk_ops->do_request(drive, rq, sector);
-}
-
-static struct ide_driver ide_gd_driver = {
- .gen_driver = {
- .owner = THIS_MODULE,
- .name = "ide-gd",
- .bus = &ide_bus_type,
- },
- .probe = ide_gd_probe,
- .remove = ide_gd_remove,
- .resume = ide_gd_resume,
- .shutdown = ide_gd_shutdown,
- .version = IDE_GD_VERSION,
- .do_request = ide_gd_do_request,
-#ifdef CONFIG_IDE_PROC_FS
- .proc_entries = ide_disk_proc_entries,
- .proc_devsets = ide_disk_proc_devsets,
-#endif
-};
-
-static int ide_gd_open(struct block_device *bdev, fmode_t mode)
-{
- struct gendisk *disk = bdev->bd_disk;
- struct ide_disk_obj *idkp;
- ide_drive_t *drive;
- int ret = 0;
-
- idkp = ide_disk_get(disk);
- if (idkp == NULL)
- return -ENXIO;
-
- drive = idkp->drive;
-
- ide_debug_log(IDE_DBG_FUNC, "enter");
-
- idkp->openers++;
-
- if ((drive->dev_flags & IDE_DFLAG_REMOVABLE) && idkp->openers == 1) {
- drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
- /* Just in case */
-
- ret = drive->disk_ops->init_media(drive, disk);
-
- /*
- * 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
- */
- if (ret && (mode & FMODE_NDELAY) == 0) {
- ret = -EIO;
- goto out_put_idkp;
- }
-
- if ((drive->dev_flags & IDE_DFLAG_WP) && (mode & FMODE_WRITE)) {
- ret = -EROFS;
- goto out_put_idkp;
- }
-
- /*
- * Ignore the return code from door_lock,
- * since the open() has already succeeded,
- * and the door_lock is irrelevant at this point.
- */
- drive->disk_ops->set_doorlock(drive, disk, 1);
- if (__invalidate_device(bdev, true))
- pr_warn("VFS: busy inodes on changed media %s\n",
- bdev->bd_disk->disk_name);
- drive->disk_ops->get_capacity(drive);
- set_capacity(disk, ide_gd_capacity(drive));
- set_bit(GD_NEED_PART_SCAN, &disk->state);
- } else if (drive->dev_flags & IDE_DFLAG_FORMAT_IN_PROGRESS) {
- ret = -EBUSY;
- goto out_put_idkp;
- }
- return 0;
-
-out_put_idkp:
- idkp->openers--;
- ide_disk_put(idkp);
- return ret;
-}
-
-static int ide_gd_unlocked_open(struct block_device *bdev, fmode_t mode)
-{
- int ret;
-
- mutex_lock(&ide_gd_mutex);
- ret = ide_gd_open(bdev, mode);
- mutex_unlock(&ide_gd_mutex);
-
- return ret;
-}
-
-
-static void ide_gd_release(struct gendisk *disk, fmode_t mode)
-{
- struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj);
- ide_drive_t *drive = idkp->drive;
-
- ide_debug_log(IDE_DBG_FUNC, "enter");
-
- mutex_lock(&ide_gd_mutex);
- if (idkp->openers == 1)
- drive->disk_ops->flush(drive);
-
- if ((drive->dev_flags & IDE_DFLAG_REMOVABLE) && idkp->openers == 1) {
- drive->disk_ops->set_doorlock(drive, disk, 0);
- drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
- }
-
- idkp->openers--;
-
- ide_disk_put(idkp);
- mutex_unlock(&ide_gd_mutex);
-}
-
-static int ide_gd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
-{
- struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj);
- ide_drive_t *drive = idkp->drive;
-
- geo->heads = drive->bios_head;
- geo->sectors = drive->bios_sect;
- geo->cylinders = (u16)drive->bios_cyl; /* truncate */
- return 0;
-}
-
-static void ide_gd_unlock_native_capacity(struct gendisk *disk)
-{
- struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj);
- ide_drive_t *drive = idkp->drive;
- const struct ide_disk_ops *disk_ops = drive->disk_ops;
-
- if (disk_ops->unlock_native_capacity)
- disk_ops->unlock_native_capacity(drive);
-}
-
-static int ide_gd_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
-{
- struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj);
- ide_drive_t *drive = idkp->drive;
-
- return drive->disk_ops->ioctl(drive, bdev, mode, cmd, arg);
-}
-
-#ifdef CONFIG_COMPAT
-static int ide_gd_compat_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
-{
- struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj);
- ide_drive_t *drive = idkp->drive;
-
- if (!drive->disk_ops->compat_ioctl)
- return -ENOIOCTLCMD;
-
- return drive->disk_ops->compat_ioctl(drive, bdev, mode, cmd, arg);
-}
-#endif
-
-static const struct block_device_operations ide_gd_ops = {
- .owner = THIS_MODULE,
- .open = ide_gd_unlocked_open,
- .release = ide_gd_release,
- .ioctl = ide_gd_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = ide_gd_compat_ioctl,
-#endif
- .getgeo = ide_gd_getgeo,
- .unlock_native_capacity = ide_gd_unlock_native_capacity,
-};
-
-static int ide_gd_probe(ide_drive_t *drive)
-{
- const struct ide_disk_ops *disk_ops = NULL;
- struct ide_disk_obj *idkp;
- struct gendisk *g;
-
- /* strstr("foo", "") is non-NULL */
- if (!strstr("ide-gd", drive->driver_req))
- goto failed;
-
-#ifdef CONFIG_IDE_GD_ATA
- if (drive->media == ide_disk)
- disk_ops = &ide_ata_disk_ops;
-#endif
-#ifdef CONFIG_IDE_GD_ATAPI
- if (drive->media == ide_floppy)
- disk_ops = &ide_atapi_disk_ops;
-#endif
- if (disk_ops == NULL)
- goto failed;
-
- if (disk_ops->check(drive, DRV_NAME) == 0) {
- printk(KERN_ERR PFX "%s: not supported by this driver\n",
- drive->name);
- goto failed;
- }
-
- idkp = kzalloc(sizeof(*idkp), GFP_KERNEL);
- if (!idkp) {
- printk(KERN_ERR PFX "%s: can't allocate a disk structure\n",
- drive->name);
- goto failed;
- }
-
- g = alloc_disk_node(IDE_DISK_MINORS, hwif_to_node(drive->hwif));
- if (!g)
- goto out_free_idkp;
-
- ide_init_disk(g, drive);
-
- idkp->dev.parent = &drive->gendev;
- idkp->dev.release = ide_disk_release;
- dev_set_name(&idkp->dev, "%s", dev_name(&drive->gendev));
-
- if (device_register(&idkp->dev))
- goto out_free_disk;
-
- idkp->drive = drive;
- idkp->driver = &ide_gd_driver;
- idkp->disk = g;
-
- g->private_data = &idkp->driver;
-
- drive->driver_data = idkp;
- drive->debug_mask = debug_mask;
- drive->disk_ops = disk_ops;
-
- disk_ops->setup(drive);
-
- set_capacity(g, ide_gd_capacity(drive));
-
- g->minors = IDE_DISK_MINORS;
- g->flags |= GENHD_FL_EXT_DEVT;
- if (drive->dev_flags & IDE_DFLAG_REMOVABLE)
- g->flags = GENHD_FL_REMOVABLE;
- g->fops = &ide_gd_ops;
- g->events = DISK_EVENT_MEDIA_CHANGE;
- device_add_disk(&drive->gendev, g, NULL);
- return 0;
-
-out_free_disk:
- put_disk(g);
-out_free_idkp:
- kfree(idkp);
-failed:
- return -ENODEV;
-}
-
-static int __init ide_gd_init(void)
-{
- printk(KERN_INFO DRV_NAME " driver " IDE_GD_VERSION "\n");
- return driver_register(&ide_gd_driver.gen_driver);
-}
-
-static void __exit ide_gd_exit(void)
-{
- driver_unregister(&ide_gd_driver.gen_driver);
-}
-
-MODULE_ALIAS("ide:*m-disk*");
-MODULE_ALIAS("ide-disk");
-MODULE_ALIAS("ide:*m-floppy*");
-MODULE_ALIAS("ide-floppy");
-module_init(ide_gd_init);
-module_exit(ide_gd_exit);
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("generic ATA/ATAPI disk driver");