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authorTakashi Iwai <tiwai@suse.de>2005-06-30 18:54:04 +0200
committerJaroslav Kysela <perex@suse.cz>2005-07-28 12:21:20 +0200
commit2c484df0d249323d223f7f58e0f3b992b7414be8 (patch)
tree1efab3f7be55dfb92943c66768f02aedfaa09419 /sound/arm/pxa2xx-pcm.h
parent1bd9debf25b8a5f5029d7619f43e4a9a775973d3 (diff)
downloadlinux-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.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
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+++ b/sound/arm/pxa2xx-pcm.h
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+/*
+ * 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 **);
+