1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * TXx9 SoC AC Link Controller 4 */ 5 6 #ifndef __TXX9ACLC_H 7 #define __TXX9ACLC_H 8 9 #include <linux/interrupt.h> 10 #include <asm/txx9/dmac.h> 11 12 #define ACCTLEN 0x00 /* control enable */ 13 #define ACCTLDIS 0x04 /* control disable */ 14 #define ACCTL_ENLINK 0x00000001 /* enable/disable AC-link */ 15 #define ACCTL_AUDODMA 0x00000100 /* AUDODMA enable/disable */ 16 #define ACCTL_AUDIDMA 0x00001000 /* AUDIDMA enable/disable */ 17 #define ACCTL_AUDOEHLT 0x00010000 /* AUDO error halt 18 enable/disable */ 19 #define ACCTL_AUDIEHLT 0x00100000 /* AUDI error halt 20 enable/disable */ 21 #define ACREGACC 0x08 /* codec register access */ 22 #define ACREGACC_DAT_SHIFT 0 /* data field */ 23 #define ACREGACC_REG_SHIFT 16 /* address field */ 24 #define ACREGACC_CODECID_SHIFT 24 /* CODEC ID field */ 25 #define ACREGACC_READ 0x80000000 /* CODEC read */ 26 #define ACREGACC_WRITE 0x00000000 /* CODEC write */ 27 #define ACINTSTS 0x10 /* interrupt status */ 28 #define ACINTMSTS 0x14 /* interrupt masked status */ 29 #define ACINTEN 0x18 /* interrupt enable */ 30 #define ACINTDIS 0x1c /* interrupt disable */ 31 #define ACINT_CODECRDY(n) (0x00000001 << (n)) /* CODECn ready */ 32 #define ACINT_REGACCRDY 0x00000010 /* ACREGACC ready */ 33 #define ACINT_AUDOERR 0x00000100 /* AUDO underrun error */ 34 #define ACINT_AUDIERR 0x00001000 /* AUDI overrun error */ 35 #define ACDMASTS 0x80 /* DMA request status */ 36 #define ACDMA_AUDO 0x00000001 /* AUDODMA pending */ 37 #define ACDMA_AUDI 0x00000010 /* AUDIDMA pending */ 38 #define ACAUDODAT 0xa0 /* audio out data */ 39 #define ACAUDIDAT 0xb0 /* audio in data */ 40 #define ACREVID 0xfc /* revision ID */ 41 42 struct txx9aclc_dmadata { 43 struct resource *dma_res; 44 struct txx9dmac_slave dma_slave; 45 struct dma_chan *dma_chan; 46 struct tasklet_struct tasklet; 47 spinlock_t dma_lock; 48 int stream; /* SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE */ 49 struct snd_pcm_substream *substream; 50 unsigned long pos; 51 dma_addr_t dma_addr; 52 unsigned long buffer_bytes; 53 unsigned long period_bytes; 54 unsigned long frag_bytes; 55 int frags; 56 int frag_count; 57 int dmacount; 58 }; 59 60 struct txx9aclc_plat_drvdata { 61 void __iomem *base; 62 u64 physbase; 63 }; 64 txx9aclc_get_plat_drvdata(struct snd_soc_dai * dai)65static inline struct txx9aclc_plat_drvdata *txx9aclc_get_plat_drvdata( 66 struct snd_soc_dai *dai) 67 { 68 return dev_get_drvdata(dai->dev); 69 } 70 71 #endif /* __TXX9ACLC_H */ 72
