1/* 2 * Driver for the Conexant CX25821 PCIe bridge 3 * 4 * Copyright (C) 2009 Conexant Systems Inc. 5 * Authors <hiep.huynh@conexant.com>, <shu.lin@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#include <linux/mutex.h> 24#include <linux/workqueue.h> 25 26#define NUM_AUDIO_PROGS 8 27#define NUM_AUDIO_FRAMES 8 28#define END_OF_FILE 0 29#define IN_PROGRESS 1 30#define RESET_STATUS -1 31#define FIFO_DISABLE 0 32#define FIFO_ENABLE 1 33#define NUM_NO_OPS 4 34 35#define RISC_READ_INSTRUCTION_SIZE 12 36#define RISC_JUMP_INSTRUCTION_SIZE 12 37#define RISC_WRITECR_INSTRUCTION_SIZE 16 38#define RISC_SYNC_INSTRUCTION_SIZE 4 39#define DWORD_SIZE 4 40#define AUDIO_SYNC_LINE 4 41 42#define LINES_PER_AUDIO_BUFFER 15 43#define AUDIO_LINE_SIZE 128 44#define AUDIO_DATA_BUF_SZ (AUDIO_LINE_SIZE * LINES_PER_AUDIO_BUFFER) 45 46#define USE_RISC_NOOP_AUDIO 1 47 48#ifdef USE_RISC_NOOP_AUDIO 49#define AUDIO_RISC_DMA_BUF_SIZE ( LINES_PER_AUDIO_BUFFER*RISC_READ_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE + NUM_NO_OPS*DWORD_SIZE + RISC_JUMP_INSTRUCTION_SIZE) 50#endif 51 52#ifndef USE_RISC_NOOP_AUDIO 53#define AUDIO_RISC_DMA_BUF_SIZE ( LINES_PER_AUDIO_BUFFER*RISC_READ_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE + RISC_JUMP_INSTRUCTION_SIZE) 54#endif 55 56static int _line_size; 57char *_defaultAudioName = "/root/audioGOOD.wav"; 58