aboutsummaryrefslogtreecommitdiffstats
path: root/sound/arm/pxa2xx-pcm.h
diff options
context:
space:
mode:
Diffstat (limited to 'sound/arm/pxa2xx-pcm.h')
-rw-r--r--sound/arm/pxa2xx-pcm.h29
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
13typedef 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
20typedef 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
28extern int pxa2xx_pcm_new(snd_card_t *, pxa2xx_pcm_client_t *, snd_pcm_t **);
29