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+/*++
+ * linux/sound/soc/wmt/wmt-soc.h
+ * WonderMedia audio driver for ALSA
+ *
+ * Copyright c 2010 WonderMedia Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+
+#ifndef __WMT_ASOC_H__
+#define __WMT_ASOC_H__
+#include <mach/dma.h>
+
+struct audio_stream_a {
+ char *id; /* identification string */
+ int stream_id; /* numeric identification */
+ dmach_t dmach; /* DMA channel number */
+ struct dma_device_cfg_s dma_cfg; /* DMA device config */
+ int dma_dev; /* dma number of that device */
+ int dma_q_head; /* DMA Channel Q Head */
+ int dma_q_tail; /* DMA Channel Q Tail */
+ char dma_q_count; /* DMA Channel Q Count */
+ int active:1; /* we are using this stream for transfer now */
+ int period; /* current transfer period */
+ int periods; /* current count of periods registerd in the DMA engine */
+ spinlock_t dma_lock; /* for locking in DMA operations */
+ struct snd_pcm_substream *stream; /* the pcm stream */
+ unsigned linked:1; /* dma channels linked */
+ int offset; /* store start position of the last period in the alsa buffer */
+ snd_pcm_uframes_t last_offset;
+};
+
+#define NUM_LINKS 1
+
+extern struct snd_soc_dai_driver wmt_i2s_dai;
+
+
+#endif