sound/soc/txx9/txx9aclc.h

   1 /*
   2  * TXx9 SoC AC Link Controller
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #ifndef __TXX9ACLC_H
  10 #define __TXX9ACLC_H
  11
  12 #include <linux/interrupt.h>
  13 #include <asm/txx9/dmac.h>
  14
  15 #define ACCTLEN                 0x00    /* control enable */
  16 #define ACCTLDIS                0x04    /* control disable */
  17 #define   ACCTL_ENLINK          0x00000001      /* enable/disable AC-link */
  18 #define   ACCTL_AUDODMA         0x00000100      /* AUDODMA enable/disable */
  19 #define   ACCTL_AUDIDMA         0x00001000      /* AUDIDMA enable/disable */
  20 #define   ACCTL_AUDOEHLT        0x00010000      /* AUDO error halt
  21                                                    enable/disable */
  22 #define   ACCTL_AUDIEHLT        0x00100000      /* AUDI error halt
  23                                                    enable/disable */
  24 #define ACREGACC                0x08    /* codec register access */
  25 #define   ACREGACC_DAT_SHIFT    0       /* data field */
  26 #define   ACREGACC_REG_SHIFT    16      /* address field */
  27 #define   ACREGACC_CODECID_SHIFT        24      /* CODEC ID field */
  28 #define   ACREGACC_READ         0x80000000      /* CODEC read */
  29 #define   ACREGACC_WRITE        0x00000000      /* CODEC write */
  30 #define ACINTSTS                0x10    /* interrupt status */
  31 #define ACINTMSTS               0x14    /* interrupt masked status */
  32 #define ACINTEN                 0x18    /* interrupt enable */
  33 #define ACINTDIS                0x1c    /* interrupt disable */
  34 #define   ACINT_CODECRDY(n)     (0x00000001 << (n))     /* CODECn ready */
  35 #define   ACINT_REGACCRDY       0x00000010      /* ACREGACC ready */
  36 #define   ACINT_AUDOERR         0x00000100      /* AUDO underrun error */
  37 #define   ACINT_AUDIERR         0x00001000      /* AUDI overrun error */
  38 #define ACDMASTS                0x80    /* DMA request status */
  39 #define   ACDMA_AUDO            0x00000001      /* AUDODMA pending */
  40 #define   ACDMA_AUDI            0x00000010      /* AUDIDMA pending */
  41 #define ACAUDODAT               0xa0    /* audio out data */
  42 #define ACAUDIDAT               0xb0    /* audio in data */
  43 #define ACREVID                 0xfc    /* revision ID */
  44
  45 struct txx9aclc_dmadata {
  46         struct resource *dma_res;
  47         struct txx9dmac_slave dma_slave;
  48         struct dma_chan *dma_chan;
  49         struct tasklet_struct tasklet;
  50         spinlock_t dma_lock;
  51         int stream; /* SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE */
  52         struct snd_pcm_substream *substream;
  53         unsigned long pos;
  54         dma_addr_t dma_addr;
  55         unsigned long buffer_bytes;
  56         unsigned long period_bytes;
  57         unsigned long frag_bytes;
  58         int frags;
  59         int frag_count;
  60         int dmacount;
  61 };
  62
  63 struct txx9aclc_plat_drvdata {
  64         void __iomem *base;
  65         u64 physbase;
  66 };
  67
  68 static inline struct txx9aclc_plat_drvdata *txx9aclc_get_plat_drvdata(
  69         struct snd_soc_dai *dai)
  70 {
  71         return dev_get_drvdata(dai->dev);
  72 }
  73
  74 #endif /* __TXX9ACLC_H */