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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/sound/soc/txx9/txx9aclc.h
10817 views
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/*

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 * TXx9 SoC AC Link Controller

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License version 2 as

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 * published by the Free Software Foundation.

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 */

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#ifndef __TXX9ACLC_H

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#define __TXX9ACLC_H

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#include <linux/interrupt.h>

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#include <asm/txx9/dmac.h>

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#define ACCTLEN			0x00	/* control enable */

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#define ACCTLDIS		0x04	/* control disable */

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#define   ACCTL_ENLINK		0x00000001	/* enable/disable AC-link */

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#define   ACCTL_AUDODMA		0x00000100	/* AUDODMA enable/disable */

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#define   ACCTL_AUDIDMA		0x00001000	/* AUDIDMA enable/disable */

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#define   ACCTL_AUDOEHLT	0x00010000	/* AUDO error halt

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						   enable/disable */

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#define   ACCTL_AUDIEHLT	0x00100000	/* AUDI error halt

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						   enable/disable */

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#define ACREGACC		0x08	/* codec register access */

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#define   ACREGACC_DAT_SHIFT	0	/* data field */

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#define   ACREGACC_REG_SHIFT	16	/* address field */

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#define   ACREGACC_CODECID_SHIFT	24	/* CODEC ID field */

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#define   ACREGACC_READ		0x80000000	/* CODEC read */

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#define   ACREGACC_WRITE	0x00000000	/* CODEC write */

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#define ACINTSTS		0x10	/* interrupt status */

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#define ACINTMSTS		0x14	/* interrupt masked status */

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#define ACINTEN			0x18	/* interrupt enable */

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#define ACINTDIS		0x1c	/* interrupt disable */

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#define   ACINT_CODECRDY(n)	(0x00000001 << (n))	/* CODECn ready */

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#define   ACINT_REGACCRDY	0x00000010	/* ACREGACC ready */

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#define   ACINT_AUDOERR		0x00000100	/* AUDO underrun error */

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#define   ACINT_AUDIERR		0x00001000	/* AUDI overrun error */

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#define ACDMASTS		0x80	/* DMA request status */

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#define   ACDMA_AUDO		0x00000001	/* AUDODMA pending */

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#define   ACDMA_AUDI		0x00000010	/* AUDIDMA pending */

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#define ACAUDODAT		0xa0	/* audio out data */

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#define ACAUDIDAT		0xb0	/* audio in data */

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#define ACREVID			0xfc	/* revision ID */

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struct txx9aclc_dmadata {

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	struct resource *dma_res;

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	struct txx9dmac_slave dma_slave;

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	struct dma_chan *dma_chan;

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	struct tasklet_struct tasklet;

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	spinlock_t dma_lock;

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	int stream; /* SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE */

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	struct snd_pcm_substream *substream;

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	unsigned long pos;

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	dma_addr_t dma_addr;

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	unsigned long buffer_bytes;

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	unsigned long period_bytes;

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	unsigned long frag_bytes;

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	int frags;

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	int frag_count;

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	int dmacount;

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};

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struct txx9aclc_plat_drvdata {

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	void __iomem *base;

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	u64 physbase;

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};

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static inline struct txx9aclc_plat_drvdata *txx9aclc_get_plat_drvdata(

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	struct snd_soc_dai *dai)

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{

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	return dev_get_drvdata(dai->dev);

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}

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#endif /* __TXX9ACLC_H */

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