projects / mirror_ubuntu-artful-kernel.git / blame
| 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 |