drivers/block/rsxx/rsxx.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3 * Filename: rsxx.h
   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
  11 #ifndef __RSXX_H__
  12 #define __RSXX_H__
  13
  14 /*----------------- IOCTL Definitions -------------------*/
  15
  16 #define RSXX_MAX_DATA 8
  17
  18 struct rsxx_reg_access {
  19         __u32 addr;
  20         __u32 cnt;
  21         __u32 stat;
  22         __u32 stream;
  23         __u32 data[RSXX_MAX_DATA];
  24 };
  25
  26 #define RSXX_MAX_REG_CNT        (RSXX_MAX_DATA * (sizeof(__u32)))
  27
  28 #define RSXX_IOC_MAGIC 'r'
  29
  30 #define RSXX_GETREG _IOWR(RSXX_IOC_MAGIC, 0x20, struct rsxx_reg_access)
  31 #define RSXX_SETREG _IOWR(RSXX_IOC_MAGIC, 0x21, struct rsxx_reg_access)
  32
  33 #endif /* __RSXX_H_ */