linux/include/asm-m68k/dsp56k.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

35 lines
1.2 KiB
C

/*
* 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) */