drivers/block/rsxx/rsxx.h

   1 /*
   2 * Filename: rsxx.h
   3 *
   4 *
   5 * Authors: Joshua Morris <josh.h.morris@us.ibm.com>
   6 *       Philip Kelleher <pjk1939@linux.vnet.ibm.com>
   7 *
   8 * (C) Copyright 2013 IBM Corporation
   9 *
  10 * This program is free software; you can redistribute it and/or
  11 * modify it under the terms of the GNU General Public License as
  12 * published by the Free Software Foundation; either version 2 of the
  13 * License, or (at your option) any later version.
  14 *
  15 * This program is distributed in the hope that it will be useful, but
  16 * WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18 * General Public License for more details.
  19 *
  20 * You should have received a copy of the GNU General Public License
  21 * along with this program; if not, write to the Free Software Foundation,
  22 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  23 */
  24
  25 #ifndef __RSXX_H__
  26 #define __RSXX_H__
  27
  28 /*----------------- IOCTL Definitions -------------------*/
  29
  30 #define RSXX_MAX_DATA 8
  31
  32 struct rsxx_reg_access {
  33         __u32 addr;
  34         __u32 cnt;
  35         __u32 stat;
  36         __u32 stream;
  37         __u32 data[RSXX_MAX_DATA];
  38 };
  39
  40 #define RSXX_MAX_REG_CNT        (RSXX_MAX_DATA * (sizeof(__u32)))
  41
  42 #define RSXX_IOC_MAGIC 'r'
  43
  44 #define RSXX_GETREG _IOWR(RSXX_IOC_MAGIC, 0x20, struct rsxx_reg_access)
  45 #define RSXX_SETREG _IOWR(RSXX_IOC_MAGIC, 0x21, struct rsxx_reg_access)
  46
  47 #endif /* __RSXX_H_ */