diff options
| author | Liam Girdwood <liam.girdwood@wolfsonmicro.com> | 2006-10-12 14:26:55 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2007-02-09 09:00:43 +0100 |
| commit | f11a96d5cd94202479e603f9dfaff6e92f342135 (patch) | |
| tree | 67693eaeef5cee6baa078d4e23ace73fab84d0b4 /sound/soc/pxa/pxa2xx-pcm.h | |
| parent | 102fa9060e114a53628a6594034b6ecf624dffc6 (diff) | |
| download | linux-f11a96d5cd94202479e603f9dfaff6e92f342135.tar.bz2 | |
[ALSA] ASoC pxa2xx DMA support
This patch adds pxa2xx ASoC DMA audio support. It's based on
sound/arm/pxa-pcm.c by Nicolas Pitre with the following differences.
o Modified driver structure to use ASoC core PCM callbacks and data
structures.
o Registration with ASoC core.
From: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/soc/pxa/pxa2xx-pcm.h')
| -rw-r--r-- | sound/soc/pxa/pxa2xx-pcm.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sound/soc/pxa/pxa2xx-pcm.h b/sound/soc/pxa/pxa2xx-pcm.h new file mode 100644 index 000000000000..0b55f070da27 --- /dev/null +++ b/sound/soc/pxa/pxa2xx-pcm.h @@ -0,0 +1,48 @@ +/* + * linux/sound/arm/pxa2xx-pcm.h -- ALSA PCM interface for the Intel PXA2xx chip + * + * Author: Nicolas Pitre + * Created: Nov 30, 2004 + * Copyright: MontaVista Software, Inc. + * + * 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 _PXA2XX_PCM_H +#define _PXA2XX_PCM_H + +struct pxa2xx_pcm_dma_params { + char *name; /* stream identifier */ + u32 dcmd; /* DMA descriptor dcmd field */ + volatile u32 *drcmr; /* the DMA request channel to use */ + u32 dev_addr; /* device physical address for DMA */ +}; + +struct pxa2xx_gpio { + u32 sys; + u32 rx; + u32 tx; + u32 clk; + u32 frm; +}; + +/* pxa2xx DAI ID's */ +#define PXA2XX_DAI_AC97_HIFI 0 +#define PXA2XX_DAI_AC97_AUX 1 +#define PXA2XX_DAI_AC97_MIC 2 +#define PXA2XX_DAI_I2S 0 +#define PXA2XX_DAI_SSP1 0 +#define PXA2XX_DAI_SSP2 1 +#define PXA2XX_DAI_SSP3 2 + +extern struct snd_soc_cpu_dai pxa_ac97_dai[3]; +extern struct snd_soc_cpu_dai pxa_i2s_dai; +extern struct snd_soc_cpu_dai pxa_ssp_dai[3]; + +/* platform data */ +extern struct snd_soc_platform pxa2xx_soc_platform; +extern struct snd_ac97_bus_ops pxa2xx_ac97_ops; + +#endif |