LXR linux/sound/soc/davinci/davinci-mcasp.h

   1/*
   2 * ALSA SoC McASP Audio Layer for TI DAVINCI processor
   3 *
   4 * MCASP related definitions
   5 *
   6 * Author: Nirmal Pandey <n-pandey@ti.com>,
   7 *         Suresh Rajashekara <suresh.r@ti.com>
   8 *         Steve Chen <schen@.mvista.com>
   9 *
  10 * Copyright:   (C) 2009 MontaVista Software, Inc., <source@mvista.com>
  11 * Copyright:   (C) 2009  Texas Instruments, India
  12 *
  13 * This program is free software; you can redistribute it and/or modify
  14 * it under the terms of the GNU General Public License version 2 as
  15 * published by the Free Software Foundation.
  16 */
  17
  18#ifndef DAVINCI_MCASP_H
  19#define DAVINCI_MCASP_H
  20
  21#include <linux/io.h>
  22#include <mach/asp.h>
  23#include "davinci-pcm.h"
  24
  25#define DAVINCI_MCASP_RATES     SNDRV_PCM_RATE_8000_96000
  26#define DAVINCI_MCASP_I2S_DAI   0
  27#define DAVINCI_MCASP_DIT_DAI   1
  28
  29enum {
  30        DAVINCI_AUDIO_WORD_8 = 0,
  31        DAVINCI_AUDIO_WORD_12,
  32        DAVINCI_AUDIO_WORD_16,
  33        DAVINCI_AUDIO_WORD_20,
  34        DAVINCI_AUDIO_WORD_24,
  35        DAVINCI_AUDIO_WORD_32,
  36        DAVINCI_AUDIO_WORD_28,  /* This is only valid for McASP */
  37};
  38
  39struct davinci_audio_dev {
  40        struct davinci_pcm_dma_params dma_params[2];
  41        void __iomem *base;
  42        int sample_rate;
  43        struct clk *clk;
  44        unsigned int codec_fmt;
  45        u8 clk_active;
  46
  47        /* McASP specific data */
  48        int     tdm_slots;
  49        u8      op_mode;
  50        u8      num_serializer;
  51        u8      *serial_dir;
  52        u8      version;
  53
  54        /* McASP FIFO related */
  55        u8      txnumevt;
  56        u8      rxnumevt;
  57};
  58
  59#endif  /* DAVINCI_MCASP_H */
  60