Coverage for d7a/phy/subband.py: 96%

28 statements  

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1# 

2# Copyright (c) 2015-2021 University of Antwerp, Aloxy NV. 

3# 

4# This file is part of pyd7a. 

5# See https://github.com/Sub-IoT/pyd7a for further info. 

6# 

7# Licensed under the Apache License, Version 2.0 (the "License"); 

8# you may not use this file except in compliance with the License. 

9# You may obtain a copy of the License at 

10# 

11# http://www.apache.org/licenses/LICENSE-2.0 

12# 

13# Unless required by applicable law or agreed to in writing, software 

14# distributed under the License is distributed on an "AS IS" BASIS, 

15# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

16# See the License for the specific language governing permissions and 

17# limitations under the License. 

18# 

19import struct 

20 

21from d7a.phy.channel_header import ChannelHeader 

22from d7a.support.schema import Validatable, Types 

23 

24 

25class SubBand(Validatable): 

26 # TODO update to D7AP v1.1 

27 

28 SCHEMA = [{ 

29 "channel_index_start": Types.INTEGER(min=0, max=0xFFFF), 

30 "channel_index_end": Types.INTEGER(min=0, max=0xFFFF), 

31 "eirp": Types.INTEGER(min=-128, max=127), 

32 "cca": Types.INTEGER(min=0, max=255), 

33 "duty": Types.INTEGER(min=0, max=255), 

34 }] 

35 

36 def __init__(self, channel_index_start=0, channel_index_end=0, eirp=0, cca=86, duty=255): 

37 self.channel_index_start = channel_index_start 

38 self.channel_index_end = channel_index_end 

39 self.eirp = eirp 

40 self.cca = cca 

41 self.duty = duty 

42 super(SubBand, self).__init__() 

43 

44 def __iter__(self): 

45 for byte in bytearray(struct.pack(">H", self.channel_index_start)): yield byte 

46 for byte in bytearray(struct.pack(">H", self.channel_index_end)): yield byte 

47 for byte in bytearray(struct.pack("b", self.eirp)): yield byte 

48 yield self.cca 

49 yield self.duty 

50 

51 @staticmethod 

52 def parse(s): 

53 channel_index_start = struct.unpack(">H", s.read("bytes:2"))[0] 

54 channel_index_end = struct.unpack(">H", s.read("bytes:2"))[0] 

55 eirp = s.read("int:8") 

56 cca = s.read("uint:8") 

57 duty = s.read("uint:8") 

58 

59 return SubBand(channel_index_start=channel_index_start, 

60 channel_index_end=channel_index_end, 

61 eirp=eirp, 

62 cca=cca, 

63 duty=duty) 

64 

65 def __str__(self): 

66 return "channel_index_start={}, channel_index_end={}, eirp={}, cca={}, duty={}".format( 

67 self.channel_index_start, 

68 self.channel_index_end, 

69 self.eirp, 

70 self.cca, 

71 self.duty 

72 )