drivers/staging/poch/poch.h

   1 /*
   2  * User-space DMA and UIO based Redrapids Pocket Change CardBus driver
   3  *
   4  * Copyright 2008 Vijay Kumar <vijaykumar@bravegnu.org>
   5  *
   6  * Part of userspace API. Should be moved to a header file in
   7  * include/linux for final version.
   8  *
   9  */
  10 struct poch_cbuf_header {
  11         __s32 group_size_bytes;
  12         __s32 group_count;
  13         __s32 group_offsets[0];
  14 };
  15
  16 struct poch_counters {
  17         __u32 fifo_empty;
  18         __u32 fifo_overflow;
  19         __u32 pll_unlock;
  20 };
  21
  22 #define POCH_IOC_NUM                    '9'
  23
  24 #define POCH_IOC_TRANSFER_START         _IO(POCH_IOC_NUM, 0)
  25 #define POCH_IOC_TRANSFER_STOP          _IO(POCH_IOC_NUM, 1)
  26 #define POCH_IOC_GET_COUNTERS           _IOR(POCH_IOC_NUM, 2, \
  27                                              struct poch_counters)
  28 #define POCH_IOC_SYNC_GROUP_FOR_USER    _IO(POCH_IOC_NUM, 3)
  29 #define POCH_IOC_SYNC_GROUP_FOR_DEVICE  _IO(POCH_IOC_NUM, 4)