2 * Driver for the Conexant CX25821 PCIe bridge
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4 * Copyright (C) 2009 Conexant Systems Inc.
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5 * Authors <hiep.huynh@conexant.com>, <shu.lin@conexant.com>
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7 * This program is free software; you can redistribute it and/or modify
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8 * it under the terms of the GNU General Public License as published by
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9 * the Free Software Foundation; either version 2 of the License, or
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10 * (at your option) any later version.
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12 * This program is distributed in the hope that it will be useful,
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 * GNU General Public License for more details.
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18 * You should have received a copy of the GNU General Public License
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19 * along with this program; if not, write to the Free Software
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20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 #include <linux/mutex.h>
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24 #include <linux/workqueue.h>
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27 #define NUM_AUDIO_PROGS 8
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28 #define NUM_AUDIO_FRAMES 8
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29 #define END_OF_FILE 0
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30 #define IN_PROGRESS 1
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31 #define RESET_STATUS -1
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32 #define FIFO_DISABLE 0
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33 #define FIFO_ENABLE 1
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34 #define NUM_NO_OPS 4
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37 #define RISC_READ_INSTRUCTION_SIZE 12
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38 #define RISC_JUMP_INSTRUCTION_SIZE 12
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39 #define RISC_WRITECR_INSTRUCTION_SIZE 16
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40 #define RISC_SYNC_INSTRUCTION_SIZE 4
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41 #define DWORD_SIZE 4
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42 #define AUDIO_SYNC_LINE 4
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45 #define LINES_PER_AUDIO_BUFFER 15
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46 #define AUDIO_LINE_SIZE 128
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47 #define AUDIO_DATA_BUF_SZ (AUDIO_LINE_SIZE * LINES_PER_AUDIO_BUFFER)
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49 #define USE_RISC_NOOP_AUDIO 1
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51 #ifdef USE_RISC_NOOP_AUDIO
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52 #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)
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56 #ifndef USE_RISC_NOOP_AUDIO
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57 #define AUDIO_RISC_DMA_BUF_SIZE ( LINES_PER_AUDIO_BUFFER*RISC_READ_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE + RISC_JUMP_INSTRUCTION_SIZE)
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60 static int _line_size;
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61 char * _defaultAudioName = "/root/audioGOOD.wav";
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