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kernel/linux-rt-4.4.41/sound/soc/txx9/txx9aclc.h 2.45 KB
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  /*
   * TXx9 SoC AC Link Controller
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  
  #ifndef __TXX9ACLC_H
  #define __TXX9ACLC_H
  
  #include <linux/interrupt.h>
  #include <asm/txx9/dmac.h>
  
  #define ACCTLEN			0x00	/* control enable */
  #define ACCTLDIS		0x04	/* control disable */
  #define   ACCTL_ENLINK		0x00000001	/* enable/disable AC-link */
  #define   ACCTL_AUDODMA		0x00000100	/* AUDODMA enable/disable */
  #define   ACCTL_AUDIDMA		0x00001000	/* AUDIDMA enable/disable */
  #define   ACCTL_AUDOEHLT	0x00010000	/* AUDO error halt
  						   enable/disable */
  #define   ACCTL_AUDIEHLT	0x00100000	/* AUDI error halt
  						   enable/disable */
  #define ACREGACC		0x08	/* codec register access */
  #define   ACREGACC_DAT_SHIFT	0	/* data field */
  #define   ACREGACC_REG_SHIFT	16	/* address field */
  #define   ACREGACC_CODECID_SHIFT	24	/* CODEC ID field */
  #define   ACREGACC_READ		0x80000000	/* CODEC read */
  #define   ACREGACC_WRITE	0x00000000	/* CODEC write */
  #define ACINTSTS		0x10	/* interrupt status */
  #define ACINTMSTS		0x14	/* interrupt masked status */
  #define ACINTEN			0x18	/* interrupt enable */
  #define ACINTDIS		0x1c	/* interrupt disable */
  #define   ACINT_CODECRDY(n)	(0x00000001 << (n))	/* CODECn ready */
  #define   ACINT_REGACCRDY	0x00000010	/* ACREGACC ready */
  #define   ACINT_AUDOERR		0x00000100	/* AUDO underrun error */
  #define   ACINT_AUDIERR		0x00001000	/* AUDI overrun error */
  #define ACDMASTS		0x80	/* DMA request status */
  #define   ACDMA_AUDO		0x00000001	/* AUDODMA pending */
  #define   ACDMA_AUDI		0x00000010	/* AUDIDMA pending */
  #define ACAUDODAT		0xa0	/* audio out data */
  #define ACAUDIDAT		0xb0	/* audio in data */
  #define ACREVID			0xfc	/* revision ID */
  
  struct txx9aclc_dmadata {
  	struct resource *dma_res;
  	struct txx9dmac_slave dma_slave;
  	struct dma_chan *dma_chan;
  	struct tasklet_struct tasklet;
  	spinlock_t dma_lock;
  	int stream; /* SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE */
  	struct snd_pcm_substream *substream;
  	unsigned long pos;
  	dma_addr_t dma_addr;
  	unsigned long buffer_bytes;
  	unsigned long period_bytes;
  	unsigned long frag_bytes;
  	int frags;
  	int frag_count;
  	int dmacount;
  };
  
  struct txx9aclc_plat_drvdata {
  	void __iomem *base;
  	u64 physbase;
  };
  
  static inline struct txx9aclc_plat_drvdata *txx9aclc_get_plat_drvdata(
  	struct snd_soc_dai *dai)
  {
  	return dev_get_drvdata(dai->dev);
  }
  
  #endif /* __TXX9ACLC_H */