diff options
Diffstat (limited to 'decoders/uart')
| -rw-r--r-- | decoders/uart/uart.py | 40 |
1 files changed, 17 insertions, 23 deletions
diff --git a/decoders/uart/uart.py b/decoders/uart/uart.py index b70496f..f0f40c9 100644 --- a/decoders/uart/uart.py +++ b/decoders/uart/uart.py @@ -101,15 +101,18 @@ # [<packet-type>, <rxtx>, <packet-data>] # # This is the list of <packet-types>s and their respective <packet-data>: -# - T_START: The data is the (integer) value of the start bit (0 or 1). -# - T_DATA: The data is the (integer) value of the UART data. Valid values +# - 'STARTBIT': The data is the (integer) value of the start bit (0 or 1). +# - 'DATA': The data is the (integer) value of the UART data. Valid values # range from 0 to 512 (as the data can be up to 9 bits in size). -# - T_PARITY: The data is the (integer) value of the parity bit (0 or 1). -# - T_STOP: The data is the (integer) value of the stop bit (0 or 1). -# - T_INVALID_START: The data is the (integer) value of the start bit (0 or 1). -# - T_INVALID_STOP: The data is the (integer) value of the stop bit (0 or 1). -# - T_PARITY_ERROR: The data is a tuple with two entries. The first one is +# - 'PARITYBIT': The data is the (integer) value of the parity bit (0 or 1). +# - 'STOPBIT': The data is the (integer) value of the stop bit (0 or 1). +# - 'INVALID STARTBIT': The data is the (integer) value of the start bit +# (0 or 1). +# - 'INVALID STOPBIT': The data is the (integer) value of the stop bit +# (0 or 1). +# - 'PARITY ERROR': The data is a tuple with two entries. The first one is # the expected parity value, the second is the actual parity value. +# - TODO: Frame error? # # The <rxtx> field is 0 for RX packets, 1 for TX packets. # @@ -151,15 +154,6 @@ ANN_HEX = 2 ANN_OCT = 3 ANN_BITS = 4 -# Protocol output packet types -T_START = 0 -T_DATA = 1 -T_PARITY = 2 -T_STOP = 3 -T_INVALID_START = 4 -T_INVALID_STOP = 5 -T_PARITY_ERROR = 6 - # Given a parity type to check (odd, even, zero, one), the value of the # parity bit, the value of the data, and the length of the data (5-9 bits, # usually 8 bits) return True if the parity is correct, False otherwise. @@ -284,7 +278,7 @@ class Decoder(srd.Decoder): # The startbit must be 0. If not, we report an error. if self.startbit[rxtx] != 0: self.put(self.frame_start[rxtx], self.samplenum, self.out_proto, - [T_INVALID_START, rxtx, self.startbit[rxtx]]) + ['INVALID STARTBIT', rxtx, self.startbit[rxtx]]) # TODO: Abort? Ignore rest of the frame? self.cur_data_bit[rxtx] = 0 @@ -294,7 +288,7 @@ class Decoder(srd.Decoder): self.state[rxtx] = GET_DATA_BITS self.put(self.frame_start[rxtx], self.samplenum, self.out_proto, - [T_START, rxtx, self.startbit[rxtx]]) + ['STARTBIT', rxtx, self.startbit[rxtx]]) self.put(self.frame_start[rxtx], self.samplenum, self.out_ann, [ANN_ASCII, ['Start bit', 'Start', 'S']]) @@ -328,7 +322,7 @@ class Decoder(srd.Decoder): self.state[rxtx] = GET_PARITY_BIT self.put(self.startsample[rxtx], self.samplenum - 1, self.out_proto, - [T_DATA, rxtx, self.databyte[rxtx]]) + ['DATA', rxtx, self.databyte[rxtx]]) s = 'RX: ' if (rxtx == RX) else 'TX: ' self.putx(rxtx, [ANN_ASCII, [s + chr(self.databyte[rxtx])]]) @@ -358,14 +352,14 @@ class Decoder(srd.Decoder): self.databyte[rxtx], self.options['num_data_bits']): # TODO: Fix range. self.put(self.samplenum, self.samplenum, self.out_proto, - [T_PARITY_BIT, rxtx, self.paritybit[rxtx]]) + ['PARITYBIT', rxtx, self.paritybit[rxtx]]) self.put(self.samplenum, self.samplenum, self.out_ann, [ANN_ASCII, ['Parity bit', 'Parity', 'P']]) else: # TODO: Fix range. # TODO: Return expected/actual parity values. self.put(self.samplenum, self.samplenum, self.out_proto, - [T_PARITY_ERROR, rxtx, (0, 1)]) # FIXME: Dummy tuple... + ['PARITY ERROR', rxtx, (0, 1)]) # FIXME: Dummy tuple... self.put(self.samplenum, self.samplenum, self.out_ann, [ANN_ASCII, ['Parity error', 'Parity err', 'PE']]) @@ -382,14 +376,14 @@ class Decoder(srd.Decoder): # Stop bits must be 1. If not, we report an error. if self.stopbit1[rxtx] != 1: self.put(self.frame_start[rxtx], self.samplenum, self.out_proto, - [T_INVALID_STOP, rxtx, self.stopbit1[rxtx]]) + ['INVALID STOPBIT', rxtx, self.stopbit1[rxtx]]) # TODO: Abort? Ignore the frame? Other? self.state[rxtx] = WAIT_FOR_START_BIT # TODO: Fix range. self.put(self.samplenum, self.samplenum, self.out_proto, - [T_STOP, rxtx, self.stopbit1[rxtx]]) + ['STOPBIT', rxtx, self.stopbit1[rxtx]]) self.put(self.samplenum, self.samplenum, self.out_ann, [ANN_ASCII, ['Stop bit', 'Stop', 'P']]) |