diff options
Diffstat (limited to 'sound/soc/au1x/psc.h')
| -rw-r--r-- | sound/soc/au1x/psc.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/sound/soc/au1x/psc.h b/sound/soc/au1x/psc.h new file mode 100644 index 00000000..b30eadd4 --- /dev/null +++ b/sound/soc/au1x/psc.h @@ -0,0 +1,52 @@ +/* + * Au12x0/Au1550 PSC ALSA ASoC audio support. + * + * (c) 2007-2008 MSC Vertriebsges.m.b.H., + * Manuel Lauss <manuel.lauss@gmail.com> + * + * 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. + * + */ + +#ifndef _AU1X_PCM_H +#define _AU1X_PCM_H + +/* DBDMA helpers */ +extern struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev); +extern void au1xpsc_pcm_destroy(struct platform_device *dmapd); + +struct au1xpsc_audio_data { + void __iomem *mmio; + + unsigned long cfg; + unsigned long rate; + + struct snd_soc_dai_driver dai_drv; + + unsigned long pm[2]; + struct mutex lock; + struct platform_device *dmapd; +}; + +#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 |