drivers/media/pci/cx25821/cx25821-audio-upstream.h

   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
  19 #include <linux/mutex.h>
  20 #include <linux/workqueue.h>
  21
  22 #define NUM_AUDIO_PROGS       8
  23 #define NUM_AUDIO_FRAMES      8
  24 #define END_OF_FILE           0
  25 #define IN_PROGRESS           1
  26 #define RESET_STATUS          -1
  27 #define FIFO_DISABLE          0
  28 #define FIFO_ENABLE           1
  29 #define NUM_NO_OPS            4
  30
  31 #define RISC_READ_INSTRUCTION_SIZE      12
  32 #define RISC_JUMP_INSTRUCTION_SIZE      12
  33 #define RISC_WRITECR_INSTRUCTION_SIZE   16
  34 #define RISC_SYNC_INSTRUCTION_SIZE      4
  35 #define DWORD_SIZE                      4
  36 #define AUDIO_SYNC_LINE                 4
  37
  38 #define LINES_PER_AUDIO_BUFFER      15
  39 #define AUDIO_LINE_SIZE             128
  40 #define AUDIO_DATA_BUF_SZ           (AUDIO_LINE_SIZE * LINES_PER_AUDIO_BUFFER)
  41
  42 #define USE_RISC_NOOP_AUDIO   1
  43
  44 #ifdef USE_RISC_NOOP_AUDIO
  45 #define AUDIO_RISC_DMA_BUF_SIZE                                         \
  46         (LINES_PER_AUDIO_BUFFER * RISC_READ_INSTRUCTION_SIZE +          \
  47          RISC_WRITECR_INSTRUCTION_SIZE + NUM_NO_OPS * DWORD_SIZE +      \
  48          RISC_JUMP_INSTRUCTION_SIZE)
  49 #endif
  50
  51 #ifndef USE_RISC_NOOP_AUDIO
  52 #define AUDIO_RISC_DMA_BUF_SIZE                                         \
  53         (LINES_PER_AUDIO_BUFFER * RISC_READ_INSTRUCTION_SIZE +          \
  54          RISC_WRITECR_INSTRUCTION_SIZE + RISC_JUMP_INSTRUCTION_SIZE)
  55 #endif
  56
  57 static int _line_size;
  58 char *_defaultAudioName = "/root/audioGOOD.wav";