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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-08-29 16:40:27 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-08-29 16:40:27 -0400 |
| commit | c1b054d03f5b31c33eaa0b267c629b118eaf3790 (patch) | |
| tree | 9333907ca767be24fcb3667877242976c3e3c8dd /sound/arm/pxa2xx-pcm.h | |
| parent | 559fb51ba7e66fe298b8355fabde1275b7def35f (diff) | |
| parent | bf4e70e54cf31dcca48d279c7f7e71328eebe749 (diff) | |
| download | kernel-crypto-c1b054d03f5b31c33eaa0b267c629b118eaf3790.tar.gz kernel-crypto-c1b054d03f5b31c33eaa0b267c629b118eaf3790.tar.xz kernel-crypto-c1b054d03f5b31c33eaa0b267c629b118eaf3790.zip | |
Merge /spare/repo/linux-2.6/
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 00000000000..43517597cab --- /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 **); + |