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Atsushi Nemotoe24805d2009-05-19 22:12:15 +09001/*
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
45struct 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
63struct txx9aclc_plat_drvdata {
64 void __iomem *base;
65 u64 physbase;
66};
67
Atsushi Nemotoe24805d2009-05-19 22:12:15 +090068static inline struct txx9aclc_plat_drvdata *txx9aclc_get_plat_drvdata(
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000069 struct snd_soc_dai *dai)
Atsushi Nemotoe24805d2009-05-19 22:12:15 +090070{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000071 return dev_get_drvdata(dai->dev);
Atsushi Nemotoe24805d2009-05-19 22:12:15 +090072}
73
Atsushi Nemotoe24805d2009-05-19 22:12:15 +090074#endif /* __TXX9ACLC_H */