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diff --git a/sound/soc/wmt/wmt_swmixer.h b/sound/soc/wmt/wmt_swmixer.h
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+/*++
+ * linux/sound/soc/wmt/wmt_swmixer.h
+ * WonderMedia I2S 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
+--*/
+
+
+typedef struct float_data {
+ unsigned long frac : 23;
+ unsigned long exp : 8;
+ unsigned long sign : 1;
+} float_data_t;
+
+void wmt_sw_u2s(int fmt, char *buffer, unsigned int chunksize);
+void wmt_pcm_fmt_trans(int fmt, int channel, char *src_buf, char *dst_buf, unsigned int chunksize);
+