diff options
Diffstat (limited to 'drivers/ide/ide.c')
| -rw-r--r-- | drivers/ide/ide.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 19181493e72..349d7fa7558 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -489,180 +489,6 @@ static int generic_ide_resume(struct device *dev) return err; } -static int generic_drive_reset(ide_drive_t *drive) -{ - struct request *rq; - int ret = 0; - - rq = blk_get_request(drive->queue, READ, __GFP_WAIT); - rq->cmd_type = REQ_TYPE_SPECIAL; - rq->cmd_len = 1; - rq->cmd[0] = REQ_DRIVE_RESET; - rq->cmd_flags |= REQ_SOFTBARRIER; - if (blk_execute_rq(drive->queue, NULL, rq, 1)) - ret = rq->errors; - blk_put_request(rq); - return ret; -} - -static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd, - unsigned long arg) -{ - u16 *id = NULL; - int size = (cmd == HDIO_GET_IDENTITY) ? (ATA_ID_WORDS * 2) : 142; - int rc = 0; - - if (drive->id_read == 0) { - rc = -ENOMSG; - goto out; - } - - id = kmalloc(size, GFP_KERNEL); - if (id == NULL) { - rc = -ENOMEM; - goto out; - } - - memcpy(id, drive->id, size); - ata_id_to_hd_driveid(id); - - if (copy_to_user((void __user *)arg, id, size)) - rc = -EFAULT; - - kfree(id); -out: - return rc; -} - -static int ide_get_nice_ioctl(ide_drive_t *drive, unsigned long arg) -{ - return put_user((drive->dsc_overlap << IDE_NICE_DSC_OVERLAP) | - (drive->nice1 << IDE_NICE_1), (long __user *)arg); -} - -static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg) -{ - if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) - return -EPERM; - - if (((arg >> IDE_NICE_DSC_OVERLAP) & 1) && - (drive->media == ide_disk || drive->media == ide_floppy || - drive->scsi)) - return -EPERM; - - drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1; - drive->nice1 = (arg >> IDE_NICE_1) & 1; - - return 0; -} - -static const struct ide_ioctl_devset ide_ioctl_settings[] = { -{ HDIO_GET_32BIT, HDIO_SET_32BIT, get_io_32bit, set_io_32bit }, -{ HDIO_GET_KEEPSETTINGS, HDIO_SET_KEEPSETTINGS, get_ksettings, set_ksettings }, -{ HDIO_GET_UNMASKINTR, HDIO_SET_UNMASKINTR, get_unmaskirq, set_unmaskirq }, -{ HDIO_GET_DMA, HDIO_SET_DMA, get_using_dma, set_using_dma }, -{ -1, HDIO_SET_PIO_MODE, NULL, set_pio_mode }, -{ 0 } -}; - -int generic_ide_ioctl(ide_drive_t *drive, struct file *file, - struct block_device *bdev, - unsigned int cmd, unsigned long arg) -{ - int err; - - err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_ioctl_settings); - if (err != -EOPNOTSUPP) - return err; - - switch (cmd) { - case HDIO_OBSOLETE_IDENTITY: - case HDIO_GET_IDENTITY: - if (bdev != bdev->bd_contains) - return -EINVAL; - return ide_get_identity_ioctl(drive, cmd, arg); - case HDIO_GET_NICE: - return ide_get_nice_ioctl(drive, arg); - case HDIO_SET_NICE: - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - return ide_set_nice_ioctl(drive, arg); -#ifdef CONFIG_IDE_TASK_IOCTL - case HDIO_DRIVE_TASKFILE: - if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) - return -EACCES; - if (drive->media == ide_disk) - return ide_taskfile_ioctl(drive, cmd, arg); - return -ENOMSG; -#endif - case HDIO_DRIVE_CMD: - if (!capable(CAP_SYS_RAWIO)) - return -EACCES; - return ide_cmd_ioctl(drive, cmd, arg); - case HDIO_DRIVE_TASK: - if (!capable(CAP_SYS_RAWIO)) - return -EACCES; - return ide_task_ioctl(drive, cmd, arg); - case HDIO_DRIVE_RESET: - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - return generic_drive_reset(drive); - case HDIO_GET_BUSSTATE: - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - if (put_user(BUSSTATE_ON, (long __user *)arg)) - return -EFAULT; - return 0; - case HDIO_SET_BUSSTATE: - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - return -EOPNOTSUPP; - default: - return -EINVAL; - } -} -EXPORT_SYMBOL(generic_ide_ioctl); - -int ide_setting_ioctl(ide_drive_t *drive, struct block_device *bdev, - unsigned int cmd, unsigned long arg, - const struct ide_ioctl_devset *s) -{ - unsigned long flags; - int err = -EOPNOTSUPP; - - for (; s->get_ioctl; s++) { - if (s->get && s->get_ioctl == cmd) - goto read_val; - else if (s->set && s->set_ioctl == cmd) - goto set_val; - } - - return err; - -read_val: - mutex_lock(&ide_setting_mtx); - spin_lock_irqsave(&ide_lock, flags); - err = s->get(drive); - spin_unlock_irqrestore(&ide_lock, flags); - mutex_unlock(&ide_setting_mtx); - return err >= 0 ? put_user(err, (long __user *)arg) : err; - -set_val: - if (bdev != bdev->bd_contains) - err = -EINVAL; - else { - if (!capable(CAP_SYS_ADMIN)) - err = -EACCES; - else { - mutex_lock(&ide_setting_mtx); - err = s->set(drive, arg); - mutex_unlock(&ide_setting_mtx); - } - } - return err; -} -EXPORT_SYMBOL_GPL(ide_setting_ioctl); - /** * ide_device_get - get an additional reference to a ide_drive_t * @drive: device to get a reference to |