2 * Au12x0/Au1550 PSC ALSA ASoC audio support.
4 * (c) 2007-2008 MSC Vertriebsges.m.b.H.,
5 * Manuel Lauss <manuel.lauss@gmail.com>
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.
11 * NOTE: all of these drivers can only work with a SINGLE instance
12 * of a PSC. Multiple independent audio devices are impossible
19 extern struct snd_ac97_bus_ops soc_ac97_ops;
22 extern struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev);
23 extern void au1xpsc_pcm_destroy(struct platform_device *dmapd);
25 struct au1xpsc_audio_data {
33 struct platform_device *dmapd;
39 #define SUBSTREAM_TYPE(substream) \
40 ((substream)->stream == SNDRV_PCM_STREAM_PLAYBACK ? PCM_TX : PCM_RX)
42 /* easy access macros */
43 #define PSC_CTRL(x) ((unsigned long)((x)->mmio) + PSC_CTRL_OFFSET)
44 #define PSC_SEL(x) ((unsigned long)((x)->mmio) + PSC_SEL_OFFSET)
45 #define I2S_STAT(x) ((unsigned long)((x)->mmio) + PSC_I2SSTAT_OFFSET)
46 #define I2S_CFG(x) ((unsigned long)((x)->mmio) + PSC_I2SCFG_OFFSET)
47 #define I2S_PCR(x) ((unsigned long)((x)->mmio) + PSC_I2SPCR_OFFSET)
48 #define AC97_CFG(x) ((unsigned long)((x)->mmio) + PSC_AC97CFG_OFFSET)
49 #define AC97_CDC(x) ((unsigned long)((x)->mmio) + PSC_AC97CDC_OFFSET)
50 #define AC97_EVNT(x) ((unsigned long)((x)->mmio) + PSC_AC97EVNT_OFFSET)
51 #define AC97_PCR(x) ((unsigned long)((x)->mmio) + PSC_AC97PCR_OFFSET)
52 #define AC97_RST(x) ((unsigned long)((x)->mmio) + PSC_AC97RST_OFFSET)
53 #define AC97_STAT(x) ((unsigned long)((x)->mmio) + PSC_AC97STAT_OFFSET)