]>
Commit | Line | Data |
---|---|---|
1a9fc855 MCC |
1 | /* |
2 | * Driver for the Conexant CX25821 PCIe bridge | |
3 | * | |
4 | * Copyright (C) 2009 Conexant Systems Inc. | |
5 | * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | */ | |
22 | ||
23 | #ifndef __CX25821_AUDIO_H__ | |
24 | #define __CX25821_AUDIO_H__ | |
25 | ||
26 | #define USE_RISC_NOOP 1 | |
27 | #define LINES_PER_BUFFER 15 | |
28 | #define AUDIO_LINE_SIZE 128 | |
29 | ||
30 | //Number of buffer programs to use at once. | |
31 | #define NUMBER_OF_PROGRAMS 8 | |
32 | ||
33 | //Max size of the RISC program for a buffer. - worst case is 2 writes per line | |
34 | // Space is also added for the 4 no-op instructions added on the end. | |
35 | ||
36 | #ifndef USE_RISC_NOOP | |
37 | #define MAX_BUFFER_PROGRAM_SIZE \ | |
38 | (2*LINES_PER_BUFFER*RISC_WRITE_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE*4) | |
39 | #endif | |
40 | ||
41 | // MAE 12 July 2005 Try to use NOOP RISC instruction instead | |
42 | #ifdef USE_RISC_NOOP | |
43 | #define MAX_BUFFER_PROGRAM_SIZE \ | |
44 | (2*LINES_PER_BUFFER*RISC_WRITE_INSTRUCTION_SIZE + RISC_NOOP_INSTRUCTION_SIZE*4) | |
45 | #endif | |
46 | ||
47 | //Sizes of various instructions in bytes. Used when adding instructions. | |
48 | #define RISC_WRITE_INSTRUCTION_SIZE 12 | |
49 | #define RISC_JUMP_INSTRUCTION_SIZE 12 | |
50 | #define RISC_SKIP_INSTRUCTION_SIZE 4 | |
51 | #define RISC_SYNC_INSTRUCTION_SIZE 4 | |
52 | #define RISC_WRITECR_INSTRUCTION_SIZE 16 | |
53 | #define RISC_NOOP_INSTRUCTION_SIZE 4 | |
54 | ||
55 | #define MAX_AUDIO_DMA_BUFFER_SIZE (MAX_BUFFER_PROGRAM_SIZE * NUMBER_OF_PROGRAMS + RISC_SYNC_INSTRUCTION_SIZE) | |
56 | ||
57 | #endif |