1/*
2 * freq.c
3 *
4 * Copyright(c) 1998 - 2009 Texas Instruments. All rights reserved.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 *  * Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 *  * Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in
15 *    the documentation and/or other materials provided with the
16 *    distribution.
17 *  * Neither the name Texas Instruments nor the names of its
18 *    contributors may be used to endorse or promote products derived
19 *    from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/** \file  freq.c
35 *  \brief frequency to channel (and vice versa) conversion implementation
36 *
37 *  \see   freq.h
38 */
39
40
41#define __FILE_ID__  FILE_ID_126
42#include "osTIType.h"
43
44#define     CHAN_FREQ_TABLE_SIZE        (sizeof(ChanFreq) / sizeof(CHAN_FREQ))
45
46typedef struct {
47    TI_UINT8       chan;
48    TI_UINT32      freq;
49} CHAN_FREQ;
50
51static CHAN_FREQ ChanFreq[] = {
52    {1,  2412000},
53    {2,  2417000},
54    {3,  2422000},
55    {4,  2427000},
56    {5,  2432000},
57    {6,  2437000},
58    {7,  2442000},
59    {8,  2447000},
60    {9,  2452000},
61    {10, 2457000},
62    {11, 2462000},
63    {12, 2467000},
64    {13, 2472000},
65    {14, 2484000},
66    {34, 5170000},
67    {36, 5180000},
68    {38, 5190000},
69    {40, 5200000},
70    {42, 5210000},
71    {44, 5220000},
72    {46, 5230000},
73    {48, 5240000},
74    {52, 5260000},
75    {56, 5280000},
76    {60, 5300000},
77    {64, 5320000},
78    {100,5500000},
79    {104,5520000},
80    {108,5540000},
81    {112,5560000},
82    {116,5580000},
83    {120,5600000},
84    {124,5620000},
85    {128,5640000},
86    {132,5660000},
87    {136,5680000},
88    {140,5700000},
89    {149,5745000},
90    {153,5765000},
91    {157,5785000},
92    {161,5805000}
93  };
94
95TI_UINT8 Freq2Chan (TI_UINT32 freq)
96{
97    TI_UINT32   i;
98
99    for (i = 0; i < CHAN_FREQ_TABLE_SIZE; i++)
100    {
101        if (ChanFreq[ i ].freq == freq)
102        {
103            return ChanFreq[ i ].chan;
104        }
105    }
106
107    return 0;
108}
109
110
111TI_UINT32 Chan2Freq (TI_UINT8 chan)
112{
113    TI_UINT32   i;
114
115    for (i = 0; i < CHAN_FREQ_TABLE_SIZE; i++)
116    {
117        if (ChanFreq[ i ].chan == chan)
118        {
119            return ChanFreq[ i ].freq;
120        }
121    }
122
123    return 0;
124}
125
126