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| author | Uwe Hermann <uwe@hermann-uwe.de> | 2019-07-08 11:10:46 +0200 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2019-10-06 23:38:45 +0200 |
| commit | ad37302991cd5690bd1eb4db4abcad206fae42ec (patch) | |
| tree | 844b0b3141ac0f8e36ec633f8b50bace47dc6ed0 | |
| parent | 3b593817d2824d925952c22321ee3ec2442c299c (diff) | |
| download | libsigrokdecode-ad37302991cd5690bd1eb4db4abcad206fae42ec.tar.gz libsigrokdecode-ad37302991cd5690bd1eb4db4abcad206fae42ec.zip | |
can: Factor out dlc2len().
| -rw-r--r-- | decoders/can/pd.py | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/decoders/can/pd.py b/decoders/can/pd.py index 292f51b..0b00127 100644 --- a/decoders/can/pd.py +++ b/decoders/can/pd.py @@ -23,6 +23,9 @@ import sigrokdecode as srd class SamplerateError(Exception): pass +def dlc2len(dlc): + return [0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 16, 20, 24, 32, 48, 64][dlc] + class Decoder(srd.Decoder): api_version = 3 id = 'can' @@ -70,9 +73,6 @@ class Decoder(srd.Decoder): def __init__(self): self.reset() - def dlc2len(self, dlc): - return [0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 16, 20, 24, 32, 48, 64][dlc] - def reset(self): self.samplerate = None self.reset_variables() @@ -173,7 +173,7 @@ class Decoder(srd.Decoder): if bitnum == (self.last_databit + 1): self.ss_block = self.samplenum if self.fd: - if self.dlc2len(self.dlc) < 16: + if dlc2len(self.dlc) < 16: self.crc_len = 27 # 17 + SBC + stuff bits else: self.crc_len = 32 # 21 + SBC + stuff bits @@ -183,7 +183,7 @@ class Decoder(srd.Decoder): # CRC sequence (15 bits, 17 bits or 21 bits) elif bitnum == (self.last_databit + self.crc_len): if self.fd: - if self.dlc2len(self.dlc) < 16: + if dlc2len(self.dlc) < 16: crc_type = "CRC-17" else: crc_type = "CRC-21" @@ -277,7 +277,7 @@ class Decoder(srd.Decoder): self.dlc = int(''.join(str(d) for d in self.bits[self.dlc_start:self.dlc_start + 4]), 2) self.putb([10, ['Data length code: %d' % self.dlc, 'DLC: %d' % self.dlc, 'DLC']]) - self.last_databit = self.dlc_start + 3 + (self.dlc2len(self.dlc) * 8) + self.last_databit = self.dlc_start + 3 + (dlc2len(self.dlc) * 8) if self.dlc > 8 and not self.fd: self.putb([16, ['Data length code (DLC) > 8 is not allowed']]) @@ -289,7 +289,7 @@ class Decoder(srd.Decoder): # The bits within a data byte are transferred MSB-first. elif bitnum == self.last_databit: self.ss_databytebits.append(self.samplenum) # Last databyte bit. - for i in range(self.dlc2len(self.dlc)): + for i in range(dlc2len(self.dlc)): x = self.dlc_start + 4 + (8 * i) b = int(''.join(str(d) for d in self.bits[x:x + 8]), 2) ss = self.ss_databytebits[i * 8] @@ -377,7 +377,7 @@ class Decoder(srd.Decoder): self.dlc = int(''.join(str(d) for d in self.bits[self.dlc_start:self.dlc_start + 4]), 2) self.putb([10, ['Data length code: %d' % self.dlc, 'DLC: %d' % self.dlc, 'DLC']]) - self.last_databit = self.dlc_start + 3 + (self.dlc2len(self.dlc) * 8) + self.last_databit = self.dlc_start + 3 + (dlc2len(self.dlc) * 8) # Remember all databyte bits, except the very last one. elif bitnum in range(self.dlc_start + 4, self.last_databit): @@ -387,7 +387,7 @@ class Decoder(srd.Decoder): # The bits within a data byte are transferred MSB-first. elif bitnum == self.last_databit: self.ss_databytebits.append(self.samplenum) # Last databyte bit. - for i in range(self.dlc2len(self.dlc)): + for i in range(dlc2len(self.dlc)): x = self.dlc_start + 4 + (8 * i) b = int(''.join(str(d) for d in self.bits[x:x + 8]), 2) ss = self.ss_databytebits[i * 8] |