projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 4a161d23 ML |
1 | /* |
| 2 | * Au12x0/Au1550 PSC ALSA ASoC audio support. | |
| 3 | * | |
| 4 | * (c) 2007-2008 MSC Vertriebsges.m.b.H., | |
| 0f83d639 | 5 | * Manuel Lauss <manuel.lauss@gmail.com> |
| 4a161d23 ML |
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 | ||
| 4a161d23 ML |
19 | extern struct snd_ac97_bus_ops soc_ac97_ops; |
| 20 | ||
| 0f83d639 ML |
21 | /* DBDMA helpers */ |
| 22 | extern struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev); | |
| 23 | extern void au1xpsc_pcm_destroy(struct platform_device *dmapd); | |
| 24 | ||
| 4a161d23 ML |
25 | struct au1xpsc_audio_data { |
| 26 | void __iomem *mmio; | |
| 27 | ||
| 28 | unsigned long cfg; | |
| 29 | unsigned long rate; | |
| 30 | ||
| 31 | unsigned long pm[2]; | |
| cdc65fbe | 32 | struct mutex lock; |
| 0f83d639 | 33 | struct platform_device *dmapd; |
| 4a161d23 ML |
34 | }; |
| 35 | ||
| 36 | #define PCM_TX 0 | |
| 37 | #define PCM_RX 1 | |
| 38 | ||
| 39 | #define SUBSTREAM_TYPE(substream) \ | |
| 40 | ((substream)->stream == SNDRV_PCM_STREAM_PLAYBACK ? PCM_TX : PCM_RX) | |
| 41 | ||
| 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) | |
| 54 | ||
| 55 | #endif |