LXR linux/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
  61static int _line_size;
  62char *_defaultAudioName = "/root/audioGOOD.wav";
  63