* Version 1.15 convert all calls to ide_raw_taskfile
* since args will return register content.
* Version 1.16 added suspend-resume-checkpower
- * Version 1.17 do flush on standy, do flush on ATA < ATA6
+ * Version 1.17 do flush on standby, do flush on ATA < ATA6
* fix wcache setup.
*/
//#define DEBUG
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/genhd.h>
#include <linux/slab.h>
#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/leds.h>
#define _IDE_DISK
#include <asm/io.h>
#include <asm/div64.h>
+struct ide_disk_obj {
+ ide_drive_t *drive;
+ ide_driver_t *driver;
+ struct gendisk *disk;
+ struct kref kref;
+};
+
+static DEFINE_MUTEX(idedisk_ref_mutex);
+
+#define to_ide_disk(obj) container_of(obj, struct ide_disk_obj, kref)
+
+#define ide_disk_g(disk) \
+ container_of((disk)->private_data, struct ide_disk_obj, driver)
+
+static struct ide_disk_obj *ide_disk_get(struct gendisk *disk)
+{
+ struct ide_disk_obj *idkp = NULL;
+
+ mutex_lock(&idedisk_ref_mutex);
+ idkp = ide_disk_g(disk);
+ if (idkp)
+ kref_get(&idkp->kref);
+ mutex_unlock(&idedisk_ref_mutex);
+ return idkp;
+}
+
+static void ide_disk_release(struct kref *);
+
+static void ide_disk_put(struct ide_disk_obj *idkp)
+{
+ mutex_lock(&idedisk_ref_mutex);
+ kref_put(&idkp->kref, ide_disk_release);
+ mutex_unlock(&idedisk_ref_mutex);
+}
+
/*
* lba_capacity_is_ok() performs a sanity check on the claimed "lba_capacity"
* value for this drive (from its reported identification information).
{
unsigned long lba_sects, chs_sects, head, tail;
+ /* No non-LBA info .. so valid! */
+ if (id->cyls == 0)
+ return 1;
+
/*
* The ATA spec tells large drives to return
* C/H/S = 16383/16/63 independent of their size.
if (hwif->no_lba48_dma && lba48 && dma) {
if (block + rq->nr_sectors > 1ULL << 28)
dma = 0;
+ else
+ lba48 = 0;
}
if (!dma) {
/* FIXME: SELECT_MASK(drive, 0) ? */
if (drive->select.b.lba) {
- if (drive->addressing == 1) {
+ if (lba48) {
task_ioreg_t tasklets[10];
- pr_debug("%s: LBA=0x%012llx\n", drive->name, block);
+ pr_debug("%s: LBA=0x%012llx\n", drive->name,
+ (unsigned long long)block);
tasklets[0] = 0;
tasklets[1] = 0;
return ide_stopped;
}
+ ledtrig_ide_activity();
+
pr_debug("%s: %sing: block=%llu, sectors=%lu, buffer=0x%08lx\n",
drive->name, rq_data_dir(rq) == READ ? "read" : "writ",
- block, rq->nr_sectors, (unsigned long)rq->buffer);
+ (unsigned long long)block, rq->nr_sectors,
+ (unsigned long)rq->buffer);
if (hwif->rw_disk)
hwif->rw_disk(drive, rq);
&& id->lba_capacity_2;
}
-static inline void idedisk_check_hpa(ide_drive_t *drive)
+static void idedisk_check_hpa(ide_drive_t *drive)
{
unsigned long long capacity, set_max;
int lba48 = idedisk_supports_lba48(drive->id);
return drive->capacity64 - drive->sect0;
}
-#define IS_PDC4030_DRIVE 0
-
-static ide_startstop_t idedisk_special (ide_drive_t *drive)
-{
- special_t *s = &drive->special;
-
- if (s->b.set_geometry) {
- s->b.set_geometry = 0;
- if (!IS_PDC4030_DRIVE) {
- ide_task_t args;
- memset(&args, 0, sizeof(ide_task_t));
- args.tfRegister[IDE_NSECTOR_OFFSET] = drive->sect;
- args.tfRegister[IDE_SECTOR_OFFSET] = drive->sect;
- args.tfRegister[IDE_LCYL_OFFSET] = drive->cyl;
- args.tfRegister[IDE_HCYL_OFFSET] = drive->cyl>>8;
- args.tfRegister[IDE_SELECT_OFFSET] = ((drive->head-1)|drive->select.all)&0xBF;
- args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SPECIFY;
- args.command_type = IDE_DRIVE_TASK_NO_DATA;
- args.handler = &set_geometry_intr;
- do_rw_taskfile(drive, &args);
- }
- } else if (s->b.recalibrate) {
- s->b.recalibrate = 0;
- if (!IS_PDC4030_DRIVE) {
- ide_task_t args;
- memset(&args, 0, sizeof(ide_task_t));
- args.tfRegister[IDE_NSECTOR_OFFSET] = drive->sect;
- args.tfRegister[IDE_COMMAND_OFFSET] = WIN_RESTORE;
- args.command_type = IDE_DRIVE_TASK_NO_DATA;
- args.handler = &recal_intr;
- do_rw_taskfile(drive, &args);
- }
- } else if (s->b.set_multmode) {
- s->b.set_multmode = 0;
- if (drive->mult_req > drive->id->max_multsect)
- drive->mult_req = drive->id->max_multsect;
- if (!IS_PDC4030_DRIVE) {
- ide_task_t args;
- memset(&args, 0, sizeof(ide_task_t));
- args.tfRegister[IDE_NSECTOR_OFFSET] = drive->mult_req;
- args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SETMULT;
- args.command_type = IDE_DRIVE_TASK_NO_DATA;
- args.handler = &set_multmode_intr;
- do_rw_taskfile(drive, &args);
- }
- } else if (s->all) {
- int special = s->all;
- s->all = 0;
- printk(KERN_ERR "%s: bad special flag: 0x%02x\n", drive->name, special);
- return ide_stopped;
- }
- return IS_PDC4030_DRIVE ? ide_stopped : ide_started;
-}
-
-static void idedisk_pre_reset (ide_drive_t *drive)
-{
- int legacy = (drive->id->cfs_enable_2 & 0x0400) ? 0 : 1;
-
- drive->special.all = 0;
- drive->special.b.set_geometry = legacy;
- drive->special.b.recalibrate = legacy;
- if (OK_TO_RESET_CONTROLLER)
- drive->mult_count = 0;
- if (!drive->keep_settings && !drive->using_dma)
- drive->mult_req = 0;
- if (drive->mult_req != drive->mult_count)
- drive->special.b.set_multmode = 1;
-}
-
#ifdef CONFIG_PROC_FS
static int smart_enable(ide_drive_t *drive)
PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
}
+static int proc_idedisk_read_capacity
+ (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+ ide_drive_t*drive = (ide_drive_t *)data;
+ int len;
+
+ len = sprintf(page,"%llu\n", (long long)idedisk_capacity(drive));
+ PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
static int proc_idedisk_read_smart_thresholds
(char *page, char **start, off_t off, int count, int *eof, void *data)
{
static ide_proc_entry_t idedisk_proc[] = {
{ "cache", S_IFREG|S_IRUGO, proc_idedisk_read_cache, NULL },
+ { "capacity", S_IFREG|S_IRUGO, proc_idedisk_read_capacity, NULL },
{ "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL },
{ "smart_values", S_IFREG|S_IRUSR, proc_idedisk_read_smart_values, NULL },
{ "smart_thresholds", S_IFREG|S_IRUSR, proc_idedisk_read_smart_thresholds, NULL },
#endif /* CONFIG_PROC_FS */
-static int idedisk_issue_flush(request_queue_t *q, struct gendisk *disk,
- sector_t *error_sector)
+static void idedisk_prepare_flush(request_queue_t *q, struct request *rq)
{
ide_drive_t *drive = q->queuedata;
- struct request *rq;
- int ret;
-
- if (!drive->wcache)
- return 0;
-
- rq = blk_get_request(q, WRITE, __GFP_WAIT);
memset(rq->cmd, 0, sizeof(rq->cmd));
rq->cmd[0] = WIN_FLUSH_CACHE;
- rq->flags |= REQ_DRIVE_TASK | REQ_SOFTBARRIER;
+ rq->cmd_type = REQ_TYPE_ATA_TASK;
+ rq->cmd_flags |= REQ_SOFTBARRIER;
rq->buffer = rq->cmd;
+}
+
+static int idedisk_issue_flush(request_queue_t *q, struct gendisk *disk,
+ sector_t *error_sector)
+{
+ ide_drive_t *drive = q->queuedata;
+ struct request *rq;
+ int ret;
+
+ if (!drive->wcache)
+ return 0;
+
+ rq = blk_get_request(q, WRITE, __GFP_WAIT);
+
+ idedisk_prepare_flush(q, rq);
- ret = blk_execute_rq(q, disk, rq);
+ ret = blk_execute_rq(q, disk, rq, 0);
/*
* if we failed and caller wants error offset, get it
if (drive->special.b.set_multmode)
return -EBUSY;
ide_init_drive_cmd (&rq);
- rq.flags = REQ_DRIVE_CMD;
+ rq.cmd_type = REQ_TYPE_ATA_CMD;
drive->mult_req = arg;
drive->special.b.set_multmode = 1;
(void) ide_do_drive_cmd (drive, &rq, ide_wait);
return 0;
}
+static void update_ordered(ide_drive_t *drive)
+{
+ struct hd_driveid *id = drive->id;
+ unsigned ordered = QUEUE_ORDERED_NONE;
+ prepare_flush_fn *prep_fn = NULL;
+ issue_flush_fn *issue_fn = NULL;
+
+ if (drive->wcache) {
+ unsigned long long capacity;
+ int barrier;
+ /*
+ * We must avoid issuing commands a drive does not
+ * understand or we may crash it. We check flush cache
+ * is supported. We also check we have the LBA48 flush
+ * cache if the drive capacity is too large. By this
+ * time we have trimmed the drive capacity if LBA48 is
+ * not available so we don't need to recheck that.
+ */
+ capacity = idedisk_capacity(drive);
+ barrier = ide_id_has_flush_cache(id) && !drive->noflush &&
+ (drive->addressing == 0 || capacity <= (1ULL << 28) ||
+ ide_id_has_flush_cache_ext(id));
+
+ printk(KERN_INFO "%s: cache flushes %ssupported\n",
+ drive->name, barrier ? "" : "not ");
+
+ if (barrier) {
+ ordered = QUEUE_ORDERED_DRAIN_FLUSH;
+ prep_fn = idedisk_prepare_flush;
+ issue_fn = idedisk_issue_flush;
+ }
+ } else
+ ordered = QUEUE_ORDERED_DRAIN;
+
+ blk_queue_ordered(drive->queue, ordered, prep_fn);
+ blk_queue_issue_flush_fn(drive->queue, issue_fn);
+}
+
static int write_cache(ide_drive_t *drive, int arg)
{
ide_task_t args;
- int err;
-
- if (!ide_id_has_flush_cache(drive->id))
- return 1;
+ int err = 1;
- memset(&args, 0, sizeof(ide_task_t));
- args.tfRegister[IDE_FEATURE_OFFSET] = (arg) ?
+ if (ide_id_has_flush_cache(drive->id)) {
+ memset(&args, 0, sizeof(ide_task_t));
+ args.tfRegister[IDE_FEATURE_OFFSET] = (arg) ?
SETFEATURES_EN_WCACHE : SETFEATURES_DIS_WCACHE;
- args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SETFEATURES;
- args.command_type = IDE_DRIVE_TASK_NO_DATA;
- args.handler = &task_no_data_intr;
+ args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SETFEATURES;
+ args.command_type = IDE_DRIVE_TASK_NO_DATA;
+ args.handler = &task_no_data_intr;
+ err = ide_raw_taskfile(drive, &args, NULL);
+ if (err == 0)
+ drive->wcache = arg;
+ }
- err = ide_raw_taskfile(drive, &args, NULL);
- if (err)
- return err;
+ update_ordered(drive);
- drive->wcache = arg;
- return 0;
+ return err;
}
static int do_idedisk_flushcache (ide_drive_t *drive)
ide_add_setting(drive, "max_failures", SETTING_RW, -1, -1, TYPE_INT, 0, 65535, 1, 1, &drive->max_failures, NULL);
}
-/*
- * Power Management state machine. This one is rather trivial for now,
- * we should probably add more, like switching back to PIO on suspend
- * to help some BIOSes, re-do the door locking on resume, etc...
- */
-
-enum {
- idedisk_pm_flush_cache = ide_pm_state_start_suspend,
- idedisk_pm_standby,
-
- idedisk_pm_idle = ide_pm_state_start_resume,
- idedisk_pm_restore_dma,
-};
-
-static void idedisk_complete_power_step (ide_drive_t *drive, struct request *rq, u8 stat, u8 error)
-{
- switch (rq->pm->pm_step) {
- case idedisk_pm_flush_cache: /* Suspend step 1 (flush cache) complete */
- if (rq->pm->pm_state == 4)
- rq->pm->pm_step = ide_pm_state_completed;
- else
- rq->pm->pm_step = idedisk_pm_standby;
- break;
- case idedisk_pm_standby: /* Suspend step 2 (standby) complete */
- rq->pm->pm_step = ide_pm_state_completed;
- break;
- case idedisk_pm_idle: /* Resume step 1 (idle) complete */
- rq->pm->pm_step = idedisk_pm_restore_dma;
- break;
- }
-}
-
-static ide_startstop_t idedisk_start_power_step (ide_drive_t *drive, struct request *rq)
-{
- ide_task_t *args = rq->special;
-
- memset(args, 0, sizeof(*args));
-
- switch (rq->pm->pm_step) {
- case idedisk_pm_flush_cache: /* Suspend step 1 (flush cache) */
- /* Not supported? Switch to next step now. */
- if (!drive->wcache || !ide_id_has_flush_cache(drive->id)) {
- idedisk_complete_power_step(drive, rq, 0, 0);
- return ide_stopped;
- }
- if (ide_id_has_flush_cache_ext(drive->id))
- args->tfRegister[IDE_COMMAND_OFFSET] = WIN_FLUSH_CACHE_EXT;
- else
- args->tfRegister[IDE_COMMAND_OFFSET] = WIN_FLUSH_CACHE;
- args->command_type = IDE_DRIVE_TASK_NO_DATA;
- args->handler = &task_no_data_intr;
- return do_rw_taskfile(drive, args);
-
- case idedisk_pm_standby: /* Suspend step 2 (standby) */
- args->tfRegister[IDE_COMMAND_OFFSET] = WIN_STANDBYNOW1;
- args->command_type = IDE_DRIVE_TASK_NO_DATA;
- args->handler = &task_no_data_intr;
- return do_rw_taskfile(drive, args);
-
- case idedisk_pm_idle: /* Resume step 1 (idle) */
- args->tfRegister[IDE_COMMAND_OFFSET] = WIN_IDLEIMMEDIATE;
- args->command_type = IDE_DRIVE_TASK_NO_DATA;
- args->handler = task_no_data_intr;
- return do_rw_taskfile(drive, args);
-
- case idedisk_pm_restore_dma: /* Resume step 2 (restore DMA) */
- /*
- * Right now, all we do is call hwif->ide_dma_check(drive),
- * we could be smarter and check for current xfer_speed
- * in struct drive etc...
- * Also, this step could be implemented as a generic helper
- * as most subdrivers will use it
- */
- if ((drive->id->capability & 1) == 0)
- break;
- if (HWIF(drive)->ide_dma_check == NULL)
- break;
- HWIF(drive)->ide_dma_check(drive);
- break;
- }
- rq->pm->pm_step = ide_pm_state_completed;
- return ide_stopped;
-}
-
static void idedisk_setup (ide_drive_t *drive)
{
struct hd_driveid *id = drive->id;
unsigned long long capacity;
- int barrier;
idedisk_add_settings(drive);
if (drive->id_read == 0)
return;
- /*
- * CompactFlash cards and their brethern look just like hard drives
- * to us, but they are removable and don't have a doorlock mechanism.
- */
- if (drive->removable && !(drive->is_flash)) {
+ if (drive->removable) {
/*
* Removable disks (eg. SYQUEST); ignore 'WD' drives
*/
printk(KERN_INFO "%s: max request size: %dKiB\n", drive->name, drive->queue->max_sectors / 2);
- /* Extract geometry if we did not already have one for the drive */
- if (!drive->cyl || !drive->head || !drive->sect) {
- drive->cyl = drive->bios_cyl = id->cyls;
- drive->head = drive->bios_head = id->heads;
- drive->sect = drive->bios_sect = id->sectors;
- }
-
- /* Handle logical geometry translation by the drive */
- if ((id->field_valid & 1) && id->cur_cyls &&
- id->cur_heads && (id->cur_heads <= 16) && id->cur_sectors) {
- drive->cyl = id->cur_cyls;
- drive->head = id->cur_heads;
- drive->sect = id->cur_sectors;
- }
-
- /* Use physical geometry if what we have still makes no sense */
- if (drive->head > 16 && id->heads && id->heads <= 16) {
- drive->cyl = id->cyls;
- drive->head = id->heads;
- drive->sect = id->sectors;
- }
-
/* calculate drive capacity, and select LBA if possible */
init_idedisk_capacity (drive);
ide_dma_verbose(drive);
printk("\n");
- drive->mult_count = 0;
- if (id->max_multsect) {
-#ifdef CONFIG_IDEDISK_MULTI_MODE
- id->multsect = ((id->max_multsect/2) > 1) ? id->max_multsect : 0;
- id->multsect_valid = id->multsect ? 1 : 0;
- drive->mult_req = id->multsect_valid ? id->max_multsect : INITIAL_MULT_COUNT;
- drive->special.b.set_multmode = drive->mult_req ? 1 : 0;
-#else /* original, pre IDE-NFG, per request of AC */
- drive->mult_req = INITIAL_MULT_COUNT;
- if (drive->mult_req > id->max_multsect)
- drive->mult_req = id->max_multsect;
- if (drive->mult_req || ((id->multsect_valid & 1) && id->multsect))
- drive->special.b.set_multmode = 1;
-#endif /* CONFIG_IDEDISK_MULTI_MODE */
- }
- drive->no_io_32bit = id->dword_io ? 1 : 0;
-
/* write cache enabled? */
if ((id->csfo & 1) || (id->cfs_enable_1 & (1 << 5)))
drive->wcache = 1;
write_cache(drive, 1);
-
- /*
- * We must avoid issuing commands a drive does not understand
- * or we may crash it. We check flush cache is supported. We also
- * check we have the LBA48 flush cache if the drive capacity is
- * too large. By this time we have trimmed the drive capacity if
- * LBA48 is not available so we don't need to recheck that.
- */
- barrier = 0;
- if (ide_id_has_flush_cache(id))
- barrier = 1;
- if (drive->addressing == 1) {
- /* Can't issue the correct flush ? */
- if (capacity > (1ULL << 28) && !ide_id_has_flush_cache_ext(id))
- barrier = 0;
- }
-
- printk(KERN_DEBUG "%s: cache flushes %ssupported\n",
- drive->name, barrier ? "" : "not ");
- if (barrier) {
- blk_queue_ordered(drive->queue, 1);
- blk_queue_issue_flush_fn(drive->queue, idedisk_issue_flush);
- }
}
static void ide_cacheflush_p(ide_drive_t *drive)
printk(KERN_INFO "%s: wcache flush failed!\n", drive->name);
}
-static int idedisk_cleanup (ide_drive_t *drive)
+static void ide_disk_remove(ide_drive_t *drive)
{
- struct gendisk *g = drive->disk;
- ide_cacheflush_p(drive);
- if (ide_unregister_subdriver(drive))
- return 1;
+ struct ide_disk_obj *idkp = drive->driver_data;
+ struct gendisk *g = idkp->disk;
+
+ ide_unregister_subdriver(drive, idkp->driver);
+
del_gendisk(g);
- drive->devfs_name[0] = '\0';
- g->fops = ide_fops;
- return 0;
-}
-static int idedisk_attach(ide_drive_t *drive);
+ ide_cacheflush_p(drive);
+
+ ide_disk_put(idkp);
+}
-static void ide_device_shutdown(struct device *dev)
+static void ide_disk_release(struct kref *kref)
{
- ide_drive_t *drive = container_of(dev, ide_drive_t, gendev);
+ struct ide_disk_obj *idkp = to_ide_disk(kref);
+ ide_drive_t *drive = idkp->drive;
+ struct gendisk *g = idkp->disk;
+
+ drive->driver_data = NULL;
+ g->private_data = NULL;
+ put_disk(g);
+ kfree(idkp);
+}
+
+static int ide_disk_probe(ide_drive_t *drive);
+static void ide_device_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,
}
printk("Shutdown: %s\n", drive->name);
- dev->bus->suspend(dev, PM_SUSPEND_STANDBY);
+ drive->gendev.bus->suspend(&drive->gendev, PMSG_SUSPEND);
}
-/*
- * IDE subdriver functions, registered with ide.c
- */
static ide_driver_t idedisk_driver = {
- .owner = THIS_MODULE,
.gen_driver = {
- .shutdown = ide_device_shutdown,
+ .owner = THIS_MODULE,
+ .name = "ide-disk",
+ .bus = &ide_bus_type,
},
- .name = "ide-disk",
+ .probe = ide_disk_probe,
+ .remove = ide_disk_remove,
+ .shutdown = ide_device_shutdown,
.version = IDEDISK_VERSION,
.media = ide_disk,
- .busy = 0,
.supports_dsc_overlap = 0,
- .cleanup = idedisk_cleanup,
.do_request = ide_do_rw_disk,
- .pre_reset = idedisk_pre_reset,
- .capacity = idedisk_capacity,
- .special = idedisk_special,
+ .end_request = ide_end_request,
+ .error = __ide_error,
+ .abort = __ide_abort,
.proc = idedisk_proc,
- .attach = idedisk_attach,
- .drives = LIST_HEAD_INIT(idedisk_driver.drives),
- .start_power_step = idedisk_start_power_step,
- .complete_power_step = idedisk_complete_power_step,
};
static int idedisk_open(struct inode *inode, struct file *filp)
{
- ide_drive_t *drive = inode->i_bdev->bd_disk->private_data;
+ struct gendisk *disk = inode->i_bdev->bd_disk;
+ struct ide_disk_obj *idkp;
+ ide_drive_t *drive;
+
+ if (!(idkp = ide_disk_get(disk)))
+ return -ENXIO;
+
+ drive = idkp->drive;
+
drive->usage++;
if (drive->removable && drive->usage == 1) {
ide_task_t args;
static int idedisk_release(struct inode *inode, struct file *filp)
{
- ide_drive_t *drive = inode->i_bdev->bd_disk->private_data;
+ struct gendisk *disk = inode->i_bdev->bd_disk;
+ struct ide_disk_obj *idkp = ide_disk_g(disk);
+ ide_drive_t *drive = idkp->drive;
+
if (drive->usage == 1)
ide_cacheflush_p(drive);
if (drive->removable && drive->usage == 1) {
drive->doorlocking = 0;
}
drive->usage--;
+
+ ide_disk_put(idkp);
+
+ return 0;
+}
+
+static int idedisk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+ struct ide_disk_obj *idkp = ide_disk_g(bdev->bd_disk);
+ 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;
}
unsigned int cmd, unsigned long arg)
{
struct block_device *bdev = inode->i_bdev;
- return generic_ide_ioctl(file, bdev, cmd, arg);
+ struct ide_disk_obj *idkp = ide_disk_g(bdev->bd_disk);
+ return generic_ide_ioctl(idkp->drive, file, bdev, cmd, arg);
}
static int idedisk_media_changed(struct gendisk *disk)
{
- ide_drive_t *drive = disk->private_data;
+ struct ide_disk_obj *idkp = ide_disk_g(disk);
+ ide_drive_t *drive = idkp->drive;
/* do not scan partitions twice if this is a removable device */
if (drive->attach) {
static int idedisk_revalidate_disk(struct gendisk *disk)
{
- ide_drive_t *drive = disk->private_data;
- set_capacity(disk, idedisk_capacity(drive));
+ struct ide_disk_obj *idkp = ide_disk_g(disk);
+ set_capacity(disk, idedisk_capacity(idkp->drive));
return 0;
}
.open = idedisk_open,
.release = idedisk_release,
.ioctl = idedisk_ioctl,
+ .getgeo = idedisk_getgeo,
.media_changed = idedisk_media_changed,
.revalidate_disk= idedisk_revalidate_disk
};
MODULE_DESCRIPTION("ATA DISK Driver");
-static int idedisk_attach(ide_drive_t *drive)
+static int ide_disk_probe(ide_drive_t *drive)
{
- struct gendisk *g = drive->disk;
+ struct ide_disk_obj *idkp;
+ struct gendisk *g;
/* strstr("foo", "") is non-NULL */
if (!strstr("ide-disk", drive->driver_req))
if (drive->media != ide_disk)
goto failed;
- if (ide_register_subdriver(drive, &idedisk_driver)) {
- printk (KERN_ERR "ide-disk: %s: Failed to register the driver with ide.c\n", drive->name);
+ idkp = kzalloc(sizeof(*idkp), GFP_KERNEL);
+ if (!idkp)
goto failed;
- }
- DRIVER(drive)->busy++;
+
+ g = alloc_disk_node(1 << PARTN_BITS,
+ hwif_to_node(drive->hwif));
+ if (!g)
+ goto out_free_idkp;
+
+ ide_init_disk(g, drive);
+
+ ide_register_subdriver(drive, &idedisk_driver);
+
+ kref_init(&idkp->kref);
+
+ idkp->drive = drive;
+ idkp->driver = &idedisk_driver;
+ idkp->disk = g;
+
+ g->private_data = &idkp->driver;
+
+ drive->driver_data = idkp;
+
idedisk_setup(drive);
if ((!drive->head || drive->head > 16) && !drive->select.b.lba) {
printk(KERN_ERR "%s: INVALID GEOMETRY: %d PHYSICAL HEADS?\n",
drive->attach = 0;
} else
drive->attach = 1;
- DRIVER(drive)->busy--;
+
g->minors = 1 << PARTN_BITS;
- strcpy(g->devfs_name, drive->devfs_name);
g->driverfs_dev = &drive->gendev;
g->flags = drive->removable ? GENHD_FL_REMOVABLE : 0;
set_capacity(g, idedisk_capacity(drive));
g->fops = &idedisk_ops;
add_disk(g);
return 0;
+
+out_free_idkp:
+ kfree(idkp);
failed:
- return 1;
+ return -ENODEV;
}
static void __exit idedisk_exit (void)
{
- ide_unregister_driver(&idedisk_driver);
+ driver_unregister(&idedisk_driver.gen_driver);
}
-static int idedisk_init (void)
+static int __init idedisk_init(void)
{
- return ide_register_driver(&idedisk_driver);
+ return driver_register(&idedisk_driver.gen_driver);
}
+MODULE_ALIAS("ide:*m-disk*");
module_init(idedisk_init);
module_exit(idedisk_exit);
MODULE_LICENSE("GPL");
git://git.onelab.eu / linux-2.6.git / blobdiff