[PATCH 2.6.9-libata1-dev1] libata-scsi: hdparm support

[Tobias Lorenz <tobias.lorenz@gmx.net>]

Hi,

this patch adds support for transfering drive informations via the
hd_driveid structure to the hdparm utility. At the moment, only
cylinders, sectors, heads, model and firmware version are transfered.

Our intention was to display the supported and the used UDMA mode(s),
but we didn't find the correct structures yet to get these infos...

Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>

> --- a/drivers/scsi/libata-scsi.c        2004-10-20 22:07:50.000000000 +0200
> +++ b/drivers/scsi/libata-scsi.c        2004-10-20 19:25:15.000000000 +0200
> @@ -215,6 +215,17 @@
>         struct ata_port *ap;
>         struct ata_device *dev;
>         int val = -EINVAL, rc = -EINVAL;
> +       struct hd_driveid drv_id = {
> +               .cyls           = 0,
> +               .sectors        = 0,
> +               .heads          = 0,
> +               .fw_rev         = "",
> +               .model          = "",
> +               .cur_cyls       = 0,
> +               .cur_heads      = 0,
> +               .cur_sectors    = 0,
> +       };
> +       int geom[3];
> 
>         ap = (struct ata_port *) &scsidev->host->hostdata[0];
>         if (!ap)
> @@ -249,7 +260,25 @@
>                         return -EACCES;
>                 return ata_task_ioctl(scsidev, arg);
> 
> +       case HDIO_GET_IDENTITY:
> +               ata_std_bios_param(scsidev, NULL, dev->n_sectors, geom);
> +               drv_id.cur_heads        = drv_id.heads          = geom[0];
> +               drv_id.cur_sectors      = drv_id.sectors        = geom[1];
> +               drv_id.cur_cyls         = drv_id.cyls           = geom[2];
> +               strncpy((char *) &drv_id.model, scsidev->model, sizeof(drv_id.model));
> +               strncpy((char *) &drv_id.fw_rev, scsidev->rev, sizeof(drv_id.fw_rev));
> +               if(copy_to_user((char *) arg, (char *) &drv_id,
> +                                sizeof(drv_id)))
> +                       return(-EFAULT);
> +               return 0;
> +
>         default:
>                 rc = -EOPNOTSUPP;
>                 break;
>         }