1 /* 2 * Au12x0/Au1550 PSC ALSA ASoC audio support. 3 * 4 * (c) 2007-2008 MSC Vertriebsges.m.b.H., 5 * Manuel Lauss <manuel.lauss@gmail.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 */ 12 13 #ifndef _AU1X_PCM_H 14 #define _AU1X_PCM_H 15 16 /* DBDMA helpers */ 17 extern struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev); 18 extern void au1xpsc_pcm_destroy(struct platform_device *dmapd); 19 20 struct au1xpsc_audio_data { 21 void __iomem *mmio; 22 23 unsigned long cfg; 24 unsigned long rate; 25 26 struct snd_soc_dai_driver dai_drv; 27 28 unsigned long pm[2]; 29 struct mutex lock; 30 struct platform_device *dmapd; 31 }; 32 33 #define PCM_TX 0 34 #define PCM_RX 1 35 36 #define SUBSTREAM_TYPE(substream) \ 37 ((substream)->stream == SNDRV_PCM_STREAM_PLAYBACK ? PCM_TX : PCM_RX) 38 39 /* easy access macros */ 40 #define PSC_CTRL(x) ((unsigned long)((x)->mmio) + PSC_CTRL_OFFSET) 41 #define PSC_SEL(x) ((unsigned long)((x)->mmio) + PSC_SEL_OFFSET) 42 #define I2S_STAT(x) ((unsigned long)((x)->mmio) + PSC_I2SSTAT_OFFSET) 43 #define I2S_CFG(x) ((unsigned long)((x)->mmio) + PSC_I2SCFG_OFFSET) 44 #define I2S_PCR(x) ((unsigned long)((x)->mmio) + PSC_I2SPCR_OFFSET) 45 #define AC97_CFG(x) ((unsigned long)((x)->mmio) + PSC_AC97CFG_OFFSET) 46 #define AC97_CDC(x) ((unsigned long)((x)->mmio) + PSC_AC97CDC_OFFSET) 47 #define AC97_EVNT(x) ((unsigned long)((x)->mmio) + PSC_AC97EVNT_OFFSET) 48 #define AC97_PCR(x) ((unsigned long)((x)->mmio) + PSC_AC97PCR_OFFSET) 49 #define AC97_RST(x) ((unsigned long)((x)->mmio) + PSC_AC97RST_OFFSET) 50 #define AC97_STAT(x) ((unsigned long)((x)->mmio) + PSC_AC97STAT_OFFSET) 51 52 #endif 53