txx9aclc.h

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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 */