| Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 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 | |
| Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 13 | struct pxa2xx_pcm_dma_params { |
| Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 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 */ |
| Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 18 | }; |
| Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 19 | |
| Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 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 | }; |
| Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 27 | |
| Takashi Iwai | d18f837 | 2005-11-17 15:10:38 +0100 | [diff] [blame] | 28 | extern int pxa2xx_pcm_new(struct snd_card *, struct pxa2xx_pcm_client *, struct snd_pcm **); |
| Takashi Iwai | 2c484df | 2005-06-30 18:54:04 +0200 | [diff] [blame] | 29 | |