/* * Au12x0/Au1550 PSC ALSA ASoC audio support. * * (c) 2007-2008 MSC Vertriebsges.m.b.H., * Manuel Lauss <mano@roarinelk.homelinux.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * NOTE: all of these drivers can only work with a SINGLE instance * of a PSC. Multiple independent audio devices are impossible * with ASoC v1. */ #ifndef _AU1X_PCM_H #define _AU1X_PCM_H extern struct snd_soc_dai au1xpsc_ac97_dai; extern struct snd_soc_dai au1xpsc_i2s_dai; extern struct snd_soc_platform au1xpsc_soc_platform; extern struct snd_ac97_bus_ops soc_ac97_ops; struct au1xpsc_audio_data { void __iomem *mmio; unsigned long cfg; unsigned long rate; unsigned long pm[2]; struct resource *ioarea; }; #define PCM_TX 0 #define PCM_RX 1 #define SUBSTREAM_TYPE(substream) \ ((substream)->stream == SNDRV_PCM_STREAM_PLAYBACK ? PCM_TX : PCM_RX) /* easy access macros */ #define PSC_CTRL(x) ((unsigned long)((x)->mmio) + PSC_CTRL_OFFSET) #define PSC_SEL(x) ((unsigned long)((x)->mmio) + PSC_SEL_OFFSET) #define I2S_STAT(x) ((unsigned long)((x)->mmio) + PSC_I2SSTAT_OFFSET) #define I2S_CFG(x) ((unsigned long)((x)->mmio) + PSC_I2SCFG_OFFSET) #define I2S_PCR(x) ((unsigned long)((x)->mmio) + PSC_I2SPCR_OFFSET) #define AC97_CFG(x) ((unsigned long)((x)->mmio) + PSC_AC97CFG_OFFSET) #define AC97_CDC(x) ((unsigned long)((x)->mmio) + PSC_AC97CDC_OFFSET) #define AC97_EVNT(x) ((unsigned long)((x)->mmio) + PSC_AC97EVNT_OFFSET) #define AC97_PCR(x) ((unsigned long)((x)->mmio) + PSC_AC97PCR_OFFSET) #define AC97_RST(x) ((unsigned long)((x)->mmio) + PSC_AC97RST_OFFSET) #define AC97_STAT(x) ((unsigned long)((x)->mmio) + PSC_AC97STAT_OFFSET) #endif