1 /* 2 * Au12x0/Au1550 PSC ALSA ASoC audio support. 3 * 4 * (c) 2007-2008 MSC Vertriebsges.m.b.H., 5 * Manuel Lauss <mano@roarinelk.homelinux.net> 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 * NOTE: all of these drivers can only work with a SINGLE instance 12 * of a PSC. Multiple independent audio devices are impossible 13 * with ASoC v1. 14 */ 15 16 #ifndef _AU1X_PCM_H 17 #define _AU1X_PCM_H 18 19 extern struct snd_soc_dai au1xpsc_ac97_dai; 20 extern struct snd_soc_dai au1xpsc_i2s_dai; 21 extern struct snd_soc_platform au1xpsc_soc_platform; 22 extern struct snd_ac97_bus_ops soc_ac97_ops; 23 24 struct au1xpsc_audio_data { 25 void __iomem *mmio; 26 27 unsigned long cfg; 28 unsigned long rate; 29 30 unsigned long pm[2]; 31 struct resource *ioarea; 32 }; 33 34 #define PCM_TX 0 35 #define PCM_RX 1 36 37 #define SUBSTREAM_TYPE(substream) \ 38 ((substream)->stream == SNDRV_PCM_STREAM_PLAYBACK ? PCM_TX : PCM_RX) 39 40 /* easy access macros */ 41 #define PSC_CTRL(x) ((unsigned long)((x)->mmio) + PSC_CTRL_OFFSET) 42 #define PSC_SEL(x) ((unsigned long)((x)->mmio) + PSC_SEL_OFFSET) 43 #define I2S_STAT(x) ((unsigned long)((x)->mmio) + PSC_I2SSTAT_OFFSET) 44 #define I2S_CFG(x) ((unsigned long)((x)->mmio) + PSC_I2SCFG_OFFSET) 45 #define I2S_PCR(x) ((unsigned long)((x)->mmio) + PSC_I2SPCR_OFFSET) 46 #define AC97_CFG(x) ((unsigned long)((x)->mmio) + PSC_AC97CFG_OFFSET) 47 #define AC97_CDC(x) ((unsigned long)((x)->mmio) + PSC_AC97CDC_OFFSET) 48 #define AC97_EVNT(x) ((unsigned long)((x)->mmio) + PSC_AC97EVNT_OFFSET) 49 #define AC97_PCR(x) ((unsigned long)((x)->mmio) + PSC_AC97PCR_OFFSET) 50 #define AC97_RST(x) ((unsigned long)((x)->mmio) + PSC_AC97RST_OFFSET) 51 #define AC97_STAT(x) ((unsigned long)((x)->mmio) + PSC_AC97STAT_OFFSET) 52 53 #endif 54