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2c484df0 TI |
1 | /* |
2 | * linux/sound/arm/pxa2xx-pcm.h -- ALSA PCM interface for the Intel PXA2xx chip | |
3 | * | |
4 | * Author: Nicolas Pitre | |
5 | * Created: Nov 30, 2004 | |
6 | * Copyright: MontaVista Software, Inc. | |
7 | * | |
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. | |
11 | */ | |
12 | ||
d18f8376 | 13 | struct pxa2xx_pcm_dma_params { |
2c484df0 TI |
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 */ | |
d18f8376 | 18 | }; |
2c484df0 | 19 | |
d18f8376 TI |
20 | struct pxa2xx_pcm_client { |
21 | struct pxa2xx_pcm_dma_params *playback_params; | |
22 | struct pxa2xx_pcm_dma_params *capture_params; | |
23 | int (*startup)(struct snd_pcm_substream *); | |
24 | void (*shutdown)(struct snd_pcm_substream *); | |
25 | int (*prepare)(struct snd_pcm_substream *); | |
26 | }; | |
2c484df0 | 27 | |
d18f8376 | 28 | extern int pxa2xx_pcm_new(struct snd_card *, struct pxa2xx_pcm_client *, struct snd_pcm **); |
2c484df0 | 29 |