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Diffstat (limited to 'kernel/sound/arm/pxa2xx-pcm.h')
| -rw-r--r-- | kernel/sound/arm/pxa2xx-pcm.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/kernel/sound/arm/pxa2xx-pcm.h b/kernel/sound/arm/pxa2xx-pcm.h new file mode 100644 index 000000000..00330985b --- /dev/null +++ b/kernel/sound/arm/pxa2xx-pcm.h @@ -0,0 +1,29 @@ +/* + * 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. + */ + +struct pxa2xx_runtime_data { + int dma_ch; + struct snd_dmaengine_dai_dma_data *params; + struct pxa_dma_desc *dma_desc_array; + dma_addr_t dma_desc_array_phys; +}; + +struct pxa2xx_pcm_client { + struct snd_dmaengine_dai_dma_data *playback_params; + struct snd_dmaengine_dai_dma_data *capture_params; + int (*startup)(struct snd_pcm_substream *); + void (*shutdown)(struct snd_pcm_substream *); + int (*prepare)(struct snd_pcm_substream *); +}; + +extern int pxa2xx_pcm_new(struct snd_card *, struct pxa2xx_pcm_client *, struct snd_pcm **); + |