1 files changed, 100 insertions, 0 deletions
diff --git a/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_fill_q15.c b/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_fill_q15.c
new file mode 100644
index 0000000..6296678
--- /dev/null
+++ b/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_fill_q15.c
@@ -0,0 +1,100 @@
+/* ----------------------------------------------------------------------
+ * Project:      CMSIS DSP Library
+ * Title:        arm_fill_q15.c
+ * Description:  Fills a constant value into a Q15 vector
+ *
+ * $Date:        18. March 2019
+ * $Revision:    V1.6.0
+ *
+ * Target Processor: Cortex-M cores
+ * -------------------------------------------------------------------- */
+/*
+ * Copyright (C) 2010-2019 ARM Limited or its affiliates. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "arm_math.h"
+
+/**
+  @ingroup groupSupport
+ */
+
+/**
+  @addtogroup Fill
+  @{
+ */
+
+/**
+  @brief         Fills a constant value into a Q15 vector.
+  @param[in]     value      input value to be filled
+  @param[out]    pDst       points to output vector
+  @param[in]     blockSize  number of samples in each vector
+  @return        none
+ */
+
+void arm_fill_q15(
+  q15_t value,
+  q15_t * pDst,
+  uint32_t blockSize)
+{
+  uint32_t blkCnt;                               /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+  q31_t packedValue;                             /* value packed to 32 bits */
+
+  /* Packing two 16 bit values to 32 bit value in order to use SIMD */
+  packedValue = __PKHBT(value, value, 16U);
+
+  /* Loop unrolling: Compute 4 outputs at a time */
+  blkCnt = blockSize >> 2U;
+
+  while (blkCnt > 0U)
+  {
+    /* C = value */
+
+    /* fill 2 times 2 samples at a time */
+    write_q15x2_ia (&pDst, packedValue);
+    write_q15x2_ia (&pDst, packedValue);
+
+    /* Decrement loop counter */
+    blkCnt--;
+  }
+
+  /* Loop unrolling: Compute remaining outputs */
+  blkCnt = blockSize % 0x4U;
+
+#else
+
+  /* Initialize blkCnt with number of samples */
+  blkCnt = blockSize;
+
+#endif /* #if defined (ARM_MATH_LOOPUNROLL) */
+
+  while (blkCnt > 0U)
+  {
+    /* C = value */
+
+    /* Fill value in destination buffer */
+    *pDst++ = value;
+
+    /* Decrement loop counter */
+    blkCnt--;
+  }
+}
+
+/**
+  @} end of Fill group
+ */