2 * TXx9 SoC AC Link Controller
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.
12 #include <linux/interrupt.h>
13 #include <asm/txx9/dmac.h>
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
22 #define ACCTL_AUDIEHLT 0x00100000 /* AUDI error halt
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 */
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;
51 int stream; /* SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE */
52 struct snd_pcm_substream *substream;
55 unsigned long buffer_bytes;
56 unsigned long period_bytes;
57 unsigned long frag_bytes;
63 struct txx9aclc_plat_drvdata {
68 struct txx9aclc_soc_device {
69 struct snd_soc_device soc_dev;
70 struct platform_device *aclc_pdev; /* for ioresources, drvdata */
71 struct txx9aclc_dmadata dmadata[2];
74 static inline struct txx9aclc_plat_drvdata *txx9aclc_get_plat_drvdata(
75 struct txx9aclc_soc_device *sdev)
77 return platform_get_drvdata(sdev->aclc_pdev);
80 extern struct snd_soc_platform txx9aclc_soc_platform;
81 extern struct snd_soc_dai txx9aclc_ac97_dai;
83 #endif /* __TXX9ACLC_H */