/* * Driver for the Conexant CX25821 PCIe bridge * * Copyright (C) 2009 Conexant Systems Inc. * Authors <hiep.huynh@conexant.com>, <shu.lin@conexant.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/mutex.h> #include <linux/workqueue.h> #define NUM_AUDIO_PROGS 8 #define NUM_AUDIO_FRAMES 8 #define END_OF_FILE 0 #define IN_PROGRESS 1 #define RESET_STATUS -1 #define FIFO_DISABLE 0 #define FIFO_ENABLE 1 #define NUM_NO_OPS 4 #define RISC_READ_INSTRUCTION_SIZE 12 #define RISC_JUMP_INSTRUCTION_SIZE 12 #define RISC_WRITECR_INSTRUCTION_SIZE 16 #define RISC_SYNC_INSTRUCTION_SIZE 4 #define DWORD_SIZE 4 #define AUDIO_SYNC_LINE 4 #define LINES_PER_AUDIO_BUFFER 15 #define AUDIO_LINE_SIZE 128 #define AUDIO_DATA_BUF_SZ (AUDIO_LINE_SIZE * LINES_PER_AUDIO_BUFFER) #define USE_RISC_NOOP_AUDIO 1 #ifdef USE_RISC_NOOP_AUDIO #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) #endif #ifndef USE_RISC_NOOP_AUDIO #define AUDIO_RISC_DMA_BUF_SIZE \ (LINES_PER_AUDIO_BUFFER * RISC_READ_INSTRUCTION_SIZE + \ RISC_WRITECR_INSTRUCTION_SIZE + RISC_JUMP_INSTRUCTION_SIZE) #endif static int _line_size; char *_defaultAudioName = "/root/audioGOOD.wav";