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