| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 *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) */ |