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| author | Takashi Iwai <tiwai@suse.de> | 2005-06-30 18:54:04 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2005-07-28 12:21:20 +0200 |
| commit | 2c484df0d249323d223f7f58e0f3b992b7414be8 (patch) | |
| tree | 1efab3f7be55dfb92943c66768f02aedfaa09419 /sound/arm/pxa2xx-pcm.h | |
| parent | 1bd9debf25b8a5f5029d7619f43e4a9a775973d3 (diff) | |
| download | linux-2c484df0d249323d223f7f58e0f3b992b7414be8.tar.bz2 | |
[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>
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 @@ +/* + * 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 **); + |