1 /*
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14  *     derived from this software without specific prior written permission.
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27  */
28 
29 #ifndef OT_CORE_RADIO_MAX_POWER_TABLE_HPP_
30 #define OT_CORE_RADIO_MAX_POWER_TABLE_HPP_
31 
32 #include "core/radio/radio.hpp"
33 #include "openthread/platform/radio.h"
34 
35 namespace ot {
36 
37 class MaxPowerTable
38 {
39 public:
40     static constexpr int8_t kPowerDefault = 30; ///< Default power 1 watt (30 dBm).
41 
MaxPowerTable(void)42     MaxPowerTable(void) { memset(mPowerTable, kPowerDefault, sizeof(mPowerTable)); }
43 
44     /**
45      * Gets the max allowed transmit power of channel @p aChannel.
46      *
47      * @param[in]  aChannel    The radio channel number.
48      *
49      * @returns The max supported transmit power in dBm.
50      *
51      */
GetTransmitPower(uint8_t aChannel) const52     int8_t GetTransmitPower(uint8_t aChannel) const { return mPowerTable[aChannel - Radio::kChannelMin]; }
53 
54     /**
55      * Sets the max allowed transmit power of channel @p aChannel.
56      *
57      * @param[in]  aChannel    The radio channel number.
58      * @param[in]  aPower      The max supported transmit power in dBm.
59      *
60      */
SetTransmitPower(uint8_t aChannel,int8_t aPower)61     void SetTransmitPower(uint8_t aChannel, int8_t aPower) { mPowerTable[aChannel - Radio::kChannelMin] = aPower; }
62 
63     /**
64      * Gets the supported channel masks.
65      *
66      */
GetSupportedChannelMask(void) const67     uint32_t GetSupportedChannelMask(void) const
68     {
69         uint32_t channelMask = 0;
70 
71         for (uint8_t i = Radio::kChannelMin; i <= Radio::kChannelMax; ++i)
72         {
73             if (mPowerTable[i - Radio::kChannelMin] != OT_RADIO_POWER_INVALID)
74             {
75                 channelMask |= (1 << i);
76             }
77         }
78 
79         return channelMask;
80     }
81 
82 private:
83     int8_t mPowerTable[Radio::kChannelMax - Radio::kChannelMin + 1];
84 };
85 
86 } // namespace ot
87 
88 #endif // OT_CORE_RADIO_MAX_POWER_TABLE_HPP_
89