diff options
Diffstat (limited to 'sound/arm/pxa2xx-pcm.h')
-rw-r--r-- | sound/arm/pxa2xx-pcm.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/sound/arm/pxa2xx-pcm.h b/sound/arm/pxa2xx-pcm.h new file mode 100644 index 000000000000..43517597cab9 --- /dev/null +++ b/sound/arm/pxa2xx-pcm.h | |||
@@ -0,0 +1,29 @@ | |||
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 | |||
13 | typedef struct { | ||
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; | ||
19 | |||
20 | typedef struct { | ||
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; | ||
27 | |||
28 | extern int pxa2xx_pcm_new(snd_card_t *, pxa2xx_pcm_client_t *, snd_pcm_t **); | ||
29 | |||