kernel-ark/sound/arm/pxa2xx-pcm.h
Takashi Iwai 2c484df0d2 [ALSA] Add ARM PXA2xx AC97 driver
Documentation,ARM,/arm/Makefile,ARM PXA2XX driver
Added ARM PXA2xx AC97 driver by Nicolas Pitre
(moved from alsa-driver tree).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-07-28 12:21:20 +02:00

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C

/*
* 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.
*/
typedef struct {
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 */
} pxa2xx_pcm_dma_params_t;
typedef struct {
pxa2xx_pcm_dma_params_t *playback_params;
pxa2xx_pcm_dma_params_t *capture_params;
int (*startup)(snd_pcm_substream_t *);
void (*shutdown)(snd_pcm_substream_t *);
int (*prepare)(snd_pcm_substream_t *);
} pxa2xx_pcm_client_t;
extern int pxa2xx_pcm_new(snd_card_t *, pxa2xx_pcm_client_t *, snd_pcm_t **);