2 * linux/sound/arm/pxa2xx-pcm.h -- ALSA PCM interface for the Intel PXA2xx chip
4 * Author: Nicolas Pitre
5 * Created: Nov 30, 2004
6 * Copyright: MontaVista Software, Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
14 char *name; /* stream identifier */
15 u32 dcmd; /* DMA descriptor dcmd field */
16 volatile u32 *drcmr; /* the DMA request channel to use */
17 u32 dev_addr; /* device physical address for DMA */
18 } pxa2xx_pcm_dma_params_t;
21 pxa2xx_pcm_dma_params_t *playback_params;
22 pxa2xx_pcm_dma_params_t *capture_params;
23 int (*startup)(snd_pcm_substream_t *);
24 void (*shutdown)(snd_pcm_substream_t *);
25 int (*prepare)(snd_pcm_substream_t *);
26 } pxa2xx_pcm_client_t;
28 extern int pxa2xx_pcm_new(snd_card_t *, pxa2xx_pcm_client_t *, snd_pcm_t **);