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71 lines
2.3 KiB
71 lines
2.3 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* TXx9 SoC AC Link Controller |
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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 work_struct work; |
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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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