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diff --git a/decoders/ade7758/pd.py b/decoders/ade7758/pd.py
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-##
-## This file is part of the libsigrokdecode project.
-##
-## Copyright (C) 2017 Karl Palsson <karlp@etactica.com>
-##
-## Permission is hereby granted, free of charge, to any person obtaining a copy
-## of this software and associated documentation files (the "Software"), to deal
-## in the Software without restriction, including without limitation the rights
-## to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-## copies of the Software, and to permit persons to whom the Software is
-## furnished to do so, 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.
-
-import math
-import sigrokdecode as srd
-from .lists import *
-
-class Decoder(srd.Decoder):
- api_version = 2
- id = 'ade7758'
- name = 'ADE7758'
- longname = 'Analog Devices ADE7758'
- desc = 'Poly phase multifunction energy metering IC protocol.'
- license = 'mit'
- inputs = ['spi']
- outputs = ['ade7758']
- annotations = (
- ('read', 'Register read commands'),
- ('write', 'Register write commands'),
- ('warning', 'Warnings'),
- )
- annotation_rows = (
- ('read', 'Read', (0,)),
- ('write', 'Write', (1,)),
- ('warnings', 'Warnings', (2,)),
- )
-
- def reset(self):
- self.expected = 0
- self.mosi_bytes, self.miso_bytes = [], []
-
- def __init__(self):
- self.ss_cmd, self.es_cmd = 0, 0
- self.reset()
-
- def start(self):
- self.out_ann = self.register(srd.OUTPUT_ANN)
-
- def putx(self, data):
- self.put(self.ss_cmd, self.es_cmd, self.out_ann, data)
-
- def put_warn(self, pos, msg):
- self.put(pos[0], pos[1], self.out_ann, [2, [msg]])
-
- def decode(self, ss, es, data):
- ptype = data[0]
- if ptype == 'CS-CHANGE':
- # Bear in mind, that CS is optional according to the datasheet.
- # If we transition high mid-stream, toss out our data and restart.
- cs_old, cs_new = data[1:]
- if cs_old is not None and cs_old == 0 and cs_new == 1:
- if len(self.mosi_bytes) > 0 and len(self.mosi_bytes[1:]) < self.expected:
- # Mark short read/write for reg at least!
- self.es_cmd = es
- write, reg = self.cmd & 0x80, self.cmd & 0x7f
- rblob = regs.get(reg)
- idx = 1 if write else 0
- self.putx([idx, ['%s: %s' % (rblob[0], "SHORT")]])
- self.put_warn([self.ss_cmd, es], "Short transfer!")
- self.reset()
- return
-
- # Don't care about anything else.
- if ptype != 'DATA':
- return
- mosi, miso = data[1:]
-
- if len(self.mosi_bytes) == 0:
- self.ss_cmd = ss
- self.mosi_bytes.append(mosi)
- self.miso_bytes.append(miso)
-
- # A transfer is 2-4 bytes, (command + 1..3 byte reg).
- if len(self.mosi_bytes) < 2:
- return
-
- self.cmd = self.mosi_bytes[0]
- write, reg = self.cmd & 0x80, self.cmd & 0x7f
- rblob = regs.get(reg)
- if not rblob:
- # If you don't have CS, this will _destroy_ comms!
- self.put_warn([self.ss_cmd, es], 'Unknown register!')
- return
-
- self.expected = math.ceil(rblob[3] / 8)
- if len(self.mosi_bytes[1:]) != self.expected:
- return
- valo, vali = None, None
- self.es_cmd = es
- if self.expected == 3:
- valo = self.mosi_bytes[1] << 16 | self.mosi_bytes[2] << 8 | \
- self.mosi_bytes[3]
- vali = self.miso_bytes[1] << 16 | self.miso_bytes[2] << 8 | \
- self.miso_bytes[3]
- elif self.expected == 2:
- valo = self.mosi_bytes[1] << 8 | self.mosi_bytes[2]
- vali = self.miso_bytes[1] << 8 | self.miso_bytes[2]
- elif self.expected == 1:
- valo = self.mosi_bytes[1]
- vali = self.miso_bytes[1]
-
- if write:
- self.putx([1, ['%s: %#x' % (rblob[0], valo)]])
- else:
- self.putx([0, ['%s: %#x' % (rblob[0], vali)]])
-
- self.reset()