1 /* SPDX-License-Identifier: GPL-2.0-only */ <<
2 /* 1 /*
3 * Alchemy ALSA ASoC audio support. !! 2 * Au12x0/Au1550 PSC ALSA ASoC audio support.
4 * 3 *
5 * (c) 2007-2011 MSC Vertriebsges.m.b.H., !! 4 * (c) 2007-2008 MSC Vertriebsges.m.b.H.,
6 * Manuel Lauss <manuel.lauss@gmail.com> !! 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.
7 */ 14 */
8 15
9 #ifndef _AU1X_PCM_H 16 #ifndef _AU1X_PCM_H
10 #define _AU1X_PCM_H 17 #define _AU1X_PCM_H
11 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
12 struct au1xpsc_audio_data { 24 struct au1xpsc_audio_data {
13 void __iomem *mmio; 25 void __iomem *mmio;
14 26
15 unsigned long cfg; 27 unsigned long cfg;
16 unsigned long rate; 28 unsigned long rate;
17 29
18 struct snd_soc_dai_driver dai_drv; <<
19 <<
20 unsigned long pm[2]; 30 unsigned long pm[2];
>> 31 struct resource *ioarea;
21 struct mutex lock; 32 struct mutex lock;
22 int dmaids[2]; <<
23 }; 33 };
24 34
>> 35 #define PCM_TX 0
>> 36 #define PCM_RX 1
>> 37
>> 38 #define SUBSTREAM_TYPE(substream) \
>> 39 ((substream)->stream == SNDRV_PCM_STREAM_PLAYBACK ? PCM_TX : PCM_RX)
>> 40
25 /* easy access macros */ 41 /* easy access macros */
26 #define PSC_CTRL(x) ((x)->mmio + PSC_CTRL_ !! 42 #define PSC_CTRL(x) ((unsigned long)((x)->mmio) + PSC_CTRL_OFFSET)
27 #define PSC_SEL(x) ((x)->mmio + PSC_SEL_O !! 43 #define PSC_SEL(x) ((unsigned long)((x)->mmio) + PSC_SEL_OFFSET)
28 #define I2S_STAT(x) ((x)->mmio + PSC_I2SST !! 44 #define I2S_STAT(x) ((unsigned long)((x)->mmio) + PSC_I2SSTAT_OFFSET)
29 #define I2S_CFG(x) ((x)->mmio + PSC_I2SCF !! 45 #define I2S_CFG(x) ((unsigned long)((x)->mmio) + PSC_I2SCFG_OFFSET)
30 #define I2S_PCR(x) ((x)->mmio + PSC_I2SPC !! 46 #define I2S_PCR(x) ((unsigned long)((x)->mmio) + PSC_I2SPCR_OFFSET)
31 #define AC97_CFG(x) ((x)->mmio + PSC_AC97C !! 47 #define AC97_CFG(x) ((unsigned long)((x)->mmio) + PSC_AC97CFG_OFFSET)
32 #define AC97_CDC(x) ((x)->mmio + PSC_AC97C !! 48 #define AC97_CDC(x) ((unsigned long)((x)->mmio) + PSC_AC97CDC_OFFSET)
33 #define AC97_EVNT(x) ((x)->mmio + PSC_AC97E !! 49 #define AC97_EVNT(x) ((unsigned long)((x)->mmio) + PSC_AC97EVNT_OFFSET)
34 #define AC97_PCR(x) ((x)->mmio + PSC_AC97P !! 50 #define AC97_PCR(x) ((unsigned long)((x)->mmio) + PSC_AC97PCR_OFFSET)
35 #define AC97_RST(x) ((x)->mmio + PSC_AC97R !! 51 #define AC97_RST(x) ((unsigned long)((x)->mmio) + PSC_AC97RST_OFFSET)
36 #define AC97_STAT(x) ((x)->mmio + PSC_AC97S !! 52 #define AC97_STAT(x) ((unsigned long)((x)->mmio) + PSC_AC97STAT_OFFSET)
37 53
38 #endif 54 #endif
39 55
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