Diff: cmsis_dsp/TransformFunctions/arm_rfft_q15.c

Revision:

3:7a284390b0ce

Parent:

2:da51fb522205

diff -r da51fb522205 -r 7a284390b0ce cmsis_dsp/TransformFunctions/arm_rfft_q15.c
--- a/cmsis_dsp/TransformFunctions/arm_rfft_q15.c	Thu May 30 17:10:11 2013 +0100
+++ b/cmsis_dsp/TransformFunctions/arm_rfft_q15.c	Fri Nov 08 13:45:10 2013 +0000
@@ -1,8 +1,8 @@
 /* ----------------------------------------------------------------------    
-* Copyright (C) 2010 ARM Limited. All rights reserved.    
+* Copyright (C) 2010-2013 ARM Limited. All rights reserved.    
 *    
-* $Date:        15. February 2012  
-* $Revision: 	V1.1.0  
+* $Date:        17. January 2013  
+* $Revision: 	V1.4.1  
 *    
 * Project: 	    CMSIS DSP Library    
 * Title:	    arm_rfft_q15.c    
@@ -12,32 +12,54 @@
 *    
 * Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
 *  
-* Version 1.1.0 2012/02/15 
-*    Updated with more optimizations, bug fixes and minor API changes.  
-*   
-* Version 1.0.10 2011/7/15  
-*    Big Endian support added and Merged M0 and M3/M4 Source code.   
-*    
-* Version 1.0.3 2010/11/29   
-*    Re-organized the CMSIS folders and updated documentation.    
-*     
-* Version 1.0.2 2010/11/11    
-*    Documentation updated.     
-*    
-* Version 1.0.1 2010/10/05     
-*    Production release and review comments incorporated.    
-*    
-* Version 1.0.0 2010/09/20     
-*    Production release and review comments incorporated    
-*    
-* Version 0.0.7  2010/06/10     
-*    Misra-C changes done    
+* Redistribution and use in source and binary forms, with or without 
+* modification, are permitted provided that the following conditions
+* are met:
+*   - Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   - Redistributions in binary form must reproduce the above copyright
+*     notice, this list of conditions and the following disclaimer in
+*     the documentation and/or other materials provided with the 
+*     distribution.
+*   - Neither the name of ARM LIMITED nor the names of its contributors
+*     may be used to endorse or promote products derived from this
+*     software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
+* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.     
 * -------------------------------------------------------------------- */
 
-
 #include "arm_math.h"
 
-/*--------------------------------------------------------------------    
+void arm_radix4_butterfly_q15(
+  q15_t * pSrc16,
+  uint32_t fftLen,
+  q15_t * pCoef16,
+  uint32_t twidCoefModifier);
+
+void arm_radix4_butterfly_inverse_q15(
+  q15_t * pSrc16,
+  uint32_t fftLen,
+  q15_t * pCoef16,
+  uint32_t twidCoefModifier);
+
+void arm_bitreversal_q15(
+  q15_t * pSrc,
+  uint32_t fftLen,
+  uint16_t bitRevFactor,
+  uint16_t * pBitRevTab);
+	
+	/*--------------------------------------------------------------------    
 *		Internal functions prototypes    
 --------------------------------------------------------------------*/
 
@@ -58,7 +80,7 @@
   uint32_t modifier);
 
 /**    
- * @addtogroup RFFT_RIFFT    
+ * @addtogroup RealFFT    
  * @{    
  */
 
@@ -128,7 +150,7 @@
 }
 
   /**    
-   * @} end of RFFT_RIFFT group    
+   * @} end of RealFFT group    
    */
 
 /**    
@@ -166,7 +188,7 @@
   pSrc1 = &pSrc[2];
   pSrc2 = &pSrc[(2u * fftLen) - 2u];
 
-#ifndef ARM_MATH_CM0
+#ifndef ARM_MATH_CM0_FAMILY
 
   /* Run the below code for Cortex-M4 and Cortex-M3 */
 
@@ -296,7 +318,7 @@
   pDst[0] = pSrc[0] + pSrc[1];
   pDst[1] = 0;
 
-#endif /* #ifndef ARM_MATH_CM0 */
+#endif /* #ifndef ARM_MATH_CM0_FAMILY */
 
 }
 
@@ -332,7 +354,7 @@
   pSrc1 = &pSrc[0];
   pSrc2 = &pSrc[2u * fftLen];
 
-#ifndef ARM_MATH_CM0
+#ifndef ARM_MATH_CM0_FAMILY
 
   /* Run the below code for Cortex-M4 and Cortex-M3 */
 
@@ -455,6 +477,6 @@
 
   }
 
-#endif /* #ifndef ARM_MATH_CM0 */
+#endif /* #ifndef ARM_MATH_CM0_FAMILY */
 
 }