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Linux/arch/m68k/include/asm/dsp56k.h

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  1 /*
  2  * linux/include/asm-m68k/dsp56k.h - defines and declarations for
  3  *                                   DSP56k device driver
  4  *
  5  * Copyright (C) 1996,1997 Fredrik Noring, lars brinkhoff & Tomas Berndtsson
  6  *
  7  * This file is subject to the terms and conditions of the GNU General Public
  8  * License.  See the file COPYING in the main directory of this archive
  9  * for more details.
 10  */
 11 
 12 
 13 /* Used for uploading DSP binary code */
 14 struct dsp56k_upload {
 15         int len;
 16         char __user *bin;
 17 };
 18 
 19 /* For the DSP host flags */
 20 struct dsp56k_host_flags {
 21         int dir;     /* Bit field. 1 = write output bit, 0 = do nothing.
 22                       * 0x0000 means reading only, 0x0011 means
 23                       * writing the bits stored in `out' on HF0 and HF1.
 24                       * Note that HF2 and HF3 can only be read.
 25                       */
 26         int out;     /* Bit field like above. */
 27         int status;  /* Host register's current state is returned */
 28 };
 29 
 30 /* ioctl command codes */
 31 #define DSP56K_UPLOAD           1    /* Upload DSP binary program       */
 32 #define DSP56K_SET_TX_WSIZE     2    /* Host transmit word size (1-4)   */
 33 #define DSP56K_SET_RX_WSIZE     3    /* Host receive word size (1-4)    */
 34 #define DSP56K_HOST_FLAGS       4    /* Host flag registers             */
 35 #define DSP56K_HOST_CMD         5    /* Trig Host Command (0-31)        */
 36 

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