1 files changed, 75 insertions, 0 deletions
diff --git a/hifi/xaf/hifi-dpf/ipc/xt-shmem/hikey/dsp_comm.c b/hifi/xaf/hifi-dpf/ipc/xt-shmem/hikey/dsp_comm.c
new file mode 100644
index 00000000..290ca9dd
--- /dev/null
+++ b/hifi/xaf/hifi-dpf/ipc/xt-shmem/hikey/dsp_comm.c
@@ -0,0 +1,75 @@
+/*******************************************************************************
+* Copyright (C) 2018 Cadence Design Systems, Inc.
+* 
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to use this Software with Cadence processor cores only and 
+* not with any other processors and platforms, subject to
+* the following conditions:
+* 
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+* 
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+******************************************************************************/
+
+#include "dsp_comm.h"
+
+void dsp_memcpy(void *d, void *s, unsigned int size)
+{
+    unsigned char *dest = (unsigned char*)d;
+    unsigned char *src = (unsigned char*)s;
+
+    if (s == d) {
+        return;
+    } else if (src > dest) {
+        for (; dest < ((unsigned char*)d + size); dest++) {
+            *dest = *src;
+            src++;
+        }
+    } else {
+        src = src + (size - 1);
+        for (dest = dest + (size - 1); dest >= (unsigned char*)d; dest--) {
+            *dest = *src;
+            src--;
+        }
+    }
+}
+
+
+void dsp_memset(void *d, unsigned char ucData, unsigned int size)
+{
+    unsigned int i;
+    unsigned char *dest  = (unsigned char*)d;
+
+    for(i = 0; i < size; i++)
+       *dest++  = ucData;
+}
+int division(int a, int b)
+{
+    const int bits_in_word_m1 = (int)(sizeof(int) * 8) - 1;
+    int s_a = a >> bits_in_word_m1;           /* s_a = a < 0 ? -1 : 0 */
+    int s_b = b >> bits_in_word_m1;           /* s_b = b < 0 ? -1 : 0 */
+    a = (a ^ s_a) - s_a;                         /* negate if s_a == -1 */
+    b = (b ^ s_b) - s_b;                         /* negate if s_b == -1 */
+    s_a ^= s_b;                                  /* sign of quotient */
+    /*
+     * On CPUs without unsigned hardware division support,
+     *  this calls __udivsi3 (notice the cast to su_int).
+     * On CPUs with unsigned hardware division support,
+     *  this uses the unsigned division instruction.
+     */
+    return ((int)a/(int)b ^ s_a) - s_a;    /* negate if s_a == -1 */
+
+}
+
+
+
+