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  *  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                                         \
  50         (LINES_PER_AUDIO_BUFFER * RISC_READ_INSTRUCTION_SIZE +          \
  51          RISC_WRITECR_INSTRUCTION_SIZE + NUM_NO_OPS * DWORD_SIZE +      \
  52          RISC_JUMP_INSTRUCTION_SIZE)
  53 #endif
  54
  55 #ifndef USE_RISC_NOOP_AUDIO
  56 #define AUDIO_RISC_DMA_BUF_SIZE                                         \
  57         (LINES_PER_AUDIO_BUFFER * RISC_READ_INSTRUCTION_SIZE +          \
  58          RISC_WRITECR_INSTRUCTION_SIZE + RISC_JUMP_INSTRUCTION_SIZE)
  59 #endif
  60
  61 static int _line_size;
  62 char *_defaultAudioName = "/root/audioGOOD.wav";