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
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