hwif->name[2] = 'e';
hwif->name[3] = '0' + index;
- hwif->bus_state = BUSSTATE_ON;
-
init_completion(&hwif->gendev_rel_comp);
hwif->tp_ops = &default_tp_ops;
DEFINE_MUTEX(ide_setting_mtx);
-EXPORT_SYMBOL_GPL(ide_setting_mtx);
-
/**
* ide_spin_wait_hwgroup - wait for group
* @drive: drive in the group
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 inline void ide_id_to_hd_driveid(u16 *id)
-{
-#ifdef __BIG_ENDIAN
- /* accessed in struct hd_driveid as 8-bit values */
- id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]);
- id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]);
- id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]);
- id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]);
- id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]);
-
- /* as 32-bit values */
- *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
- *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG);
-
- /* as 64-bit value */
- *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] =
- ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
-#endif
-}
-
-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);
- ide_id_to_hd_driveid(id);
-
- if (copy_to_user((void __user *)arg, id, size))
- rc = -EFAULT;
-
- kfree(id);
-out:
- return rc;
-}
-
-int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev,
- unsigned int cmd, unsigned long arg)
-{
- unsigned long flags;
- int err = 0, (*getfunc)(ide_drive_t *), (*setfunc)(ide_drive_t *, int);
-
- switch (cmd) {
- case HDIO_GET_32BIT: getfunc = get_io_32bit; goto read_val;
- case HDIO_GET_KEEPSETTINGS: getfunc = get_ksettings; goto read_val;
- case HDIO_GET_UNMASKINTR: getfunc = get_unmaskirq; goto read_val;
- case HDIO_GET_DMA: getfunc = get_using_dma; goto read_val;
- case HDIO_SET_32BIT: setfunc = set_io_32bit; goto set_val;
- case HDIO_SET_KEEPSETTINGS: setfunc = set_ksettings; goto set_val;
- case HDIO_SET_PIO_MODE: setfunc = set_pio_mode; goto set_val;
- case HDIO_SET_UNMASKINTR: setfunc = set_unmaskirq; goto set_val;
- case HDIO_SET_DMA: setfunc = set_using_dma; goto set_val;
- }
-
- 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 put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP |
- drive->nice1 << IDE_NICE_1,
- (long __user *) arg);
-#ifdef CONFIG_IDE_TASK_IOCTL
- case HDIO_DRIVE_TASKFILE:
- if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
- return -EACCES;
- switch(drive->media) {
- case ide_disk:
- return ide_taskfile_ioctl(drive, cmd, arg);
- default:
- return -ENOMSG;
- }
-#endif /* CONFIG_IDE_TASK_IOCTL */
-
- 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_SET_NICE:
- if (!capable(CAP_SYS_ADMIN)) return -EACCES;
- 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;
- 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(HWIF(drive)->bus_state, (long __user *)arg))
- return -EFAULT;
- return 0;
-
- case HDIO_SET_BUSSTATE:
- if (!capable(CAP_SYS_ADMIN))
- return -EACCES;
- return -EOPNOTSUPP;
- default:
- return -EINVAL;
- }
-
-read_val:
- mutex_lock(&ide_setting_mtx);
- spin_lock_irqsave(&ide_lock, flags);
- err = getfunc(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 = setfunc(drive, arg);
- mutex_unlock(&ide_setting_mtx);
- }
- }
- return err;
-}
-
-EXPORT_SYMBOL(generic_ide_ioctl);
-
/**
* ide_device_get - get an additional reference to a ide_drive_t
* @drive: device to get a reference to
projects / linux-2.6-omap-h63xx.git / blobdiff