dsp56k.h
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上传日期:2013-02-24
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- /*
- * linux/include/asm-m68k/dsp56k.h - defines and declarations for
- * DSP56k device driver
- *
- * Copyright (C) 1996,1997 Fredrik Noring, lars brinkhoff & Tomas Berndtsson
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- */
- /* Used for uploading DSP binary code */
- struct dsp56k_upload {
- int len;
- char *bin;
- };
- /* For the DSP host flags */
- struct dsp56k_host_flags {
- int dir; /* Bit field. 1 = write output bit, 0 = do nothing.
- * 0x0000 means reading only, 0x0011 means
- * writing the bits stored in `out' on HF0 and HF1.
- * Note that HF2 and HF3 can only be read.
- */
- int out; /* Bit field like above. */
- int status; /* Host register's current state is returned */
- };
- /* ioctl command codes */
- #define DSP56K_UPLOAD 1 /* Upload DSP binary program */
- #define DSP56K_SET_TX_WSIZE 2 /* Host transmit word size (1-4) */
- #define DSP56K_SET_RX_WSIZE 3 /* Host receive word size (1-4) */
- #define DSP56K_HOST_FLAGS 4 /* Host flag registers */
- #define DSP56K_HOST_CMD 5 /* Trig Host Command (0-31) */