update 2016-11-02 b1

1. created project
2. initialized ir encode and decode source files

src/ir_decoder/irda_utils.c

@@ -0,0 +1,107 @@
+/**************************************************************************************************
+Filename:       irda_utils.c
+Revised:        Date: 2015-08-26
+Revision:       Revision: 1.0
+
+Description:    This file provides generic utils for UCON IRDA algorithms
+
+Copyright 2014-2016 UCON Tech all rights reserved
+
+Revision log:
+* 2015-08-01: created by strawmanbobi
+**************************************************************************************************/
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "irda_utils.h"
+#include "ucon_decode.h"
+
+/*
+*0123456789abcdef/0123456789ABCDEF
+*/
+UINT8 char_to_hex(char chr)
+{
+    UINT8 value = 0;
+    if (chr >= '0' && chr <= '9')
+        value = chr - '0';
+    if (chr >= 'a' && chr <= 'f')
+        value = chr - 'a' + 10;
+    if (chr >= 'A' && chr <= 'F')
+        value = chr - 'A' + 10;
+    return value;
+}
+
+UINT8 chars_to_hex(UINT8 *p)
+{
+    return (char_to_hex(*p) << 4) + char_to_hex(*(p + 1));
+}
+
+void string_to_hex_common(UINT8 *p, UINT8 *hex_data, UINT16 len)
+{
+    // in condition of hex_code is already assigned
+    UINT16 i = 0;
+
+    for (i = 0; i < len; i++)
+    {
+        hex_data[i] = chars_to_hex(p);
+        p = p + 2;
+    }
+}
+
+void string_to_hex(UINT8 *p, ac_hex *pac_hex, UINT16 len)
+{
+    UINT8 i = 0;
+
+    pac_hex->len = chars_to_hex(p);
+    p = p + 2;
+    for (i = 0; i < pac_hex->len; i++)
+    {
+        pac_hex->data[i] = chars_to_hex(p);
+        p = p + 2;
+    }
+}
+
+char hex_half_byte_to_single_char(UINT8 length, UINT8 half_byte)
+{
+    if (1 != length || half_byte >= 16)
+    {
+        return '0';
+    }
+    if (half_byte >= 10 && half_byte < 16)
+    {
+        return (half_byte - 10 + 0x41);
+    }
+    else
+    {
+        return half_byte + 0x30;
+    }
+}
+
+void hex_byte_to_double_char(char* dest, UINT8 length, UINT8 src)
+{
+    UINT8 hi_num = 0;
+    UINT8 lo_num = 0;
+    if (NULL == dest || 2 != length)
+    {
+        return;
+    }
+    hi_num = (src >> 4) & 0x0F;
+    lo_num = src & 0x0F;
+
+    dest[0] = hex_half_byte_to_single_char(1, hi_num);
+    dest[1] = hex_half_byte_to_single_char(1, lo_num);
+}
+
+BOOL isin(UINT8 array[], UINT8 value, UINT8 len)
+{
+    UINT16 i = 0;
+    for(i = 0; i < len; i++)
+    {
+        if(array[i] == value)
+        {
+            return TRUE;
+        }
+    }
+    return FALSE;
+}