#
#
-import sigrokdecode
+import sigrokdecode as srd
# annotation feed formats
ANN_SHIFTED = 0
FIND_DATA = 2
-class Decoder(sigrokdecode.Decoder):
+class Decoder(srd.Decoder):
id = 'i2c'
name = 'I2C'
longname = 'Inter-Integrated Circuit (I2C) bus'
options = {
'address-space': ['Address space (in bits)', 7],
}
- annotation = [
+ annotations = [
# ANN_SHIFTED
["7-bit shifted hex",
"Read/Write bit shifted out from the 8-bit i2c slave address"],
]
def __init__(self, **kwargs):
- self.output_protocol = None
- self.output_annotation = None
self.samplecnt = 0
self.bitcount = 0
self.databyte = 0
self.oldsda = None
def start(self, metadata):
- self.output_protocol = self.add(sigrokdecode.SRD_OUTPUT_PROTOCOL, 'i2c')
- self.output_annotation = self.add(sigrokdecode.SRD_OUTPUT_ANNOTATION, 'i2c')
+ self.out_proto = self.add(srd.OUTPUT_PROTO, 'i2c')
+ self.out_ann = self.add(srd.OUTPUT_ANN, 'i2c')
def report(self):
pass
cmd = 'START_REPEAT'
else:
cmd = 'START'
- self.put(self.output_protocol, [ cmd, None, None ])
- self.put(self.output_annotation, [ ANN_SHIFTED, [protocol[cmd][0]] ])
- self.put(self.output_annotation, [ ANN_SHIFTED_SHORT, [protocol[cmd][1]] ])
+ self.put(self.out_proto, [ cmd, None, None ])
+ self.put(self.out_ann, [ ANN_SHIFTED, [protocol[cmd][0]] ])
+ self.put(self.out_ann, [ ANN_SHIFTED_SHORT, [protocol[cmd][1]] ])
self.state = FIND_ADDRESS
self.bitcount = self.databyte = 0
# send raw output annotation before we start shifting out
# read/write and ack/nack bits
- self.put(self.output_annotation, [ANN_RAW, ["0x%.2x" % self.databyte]])
+ self.put(self.out_ann, [ANN_RAW, ["0x%.2x" % self.databyte]])
# We received 8 address/data bits and the ACK/NACK bit.
self.databyte >>= 1 # Shift out unwanted ACK/NACK bit here.
cmd = 'DATA_WRITE'
elif self.state == FIND_DATA and self.wr == 0:
cmd = 'DATA_READ'
- self.put(self.output_protocol, [ cmd, d, ack_bit ] )
- self.put(self.output_annotation, [ANN_SHIFTED, [
+ self.put(self.out_proto, [ cmd, d, ack_bit ] )
+ self.put(self.out_ann, [ANN_SHIFTED, [
"%s" % protocol[cmd][0],
"0x%02x" % d,
"%s" % protocol[ack_bit][0]]
] )
- self.put(self.output_annotation, [ANN_SHIFTED_SHORT, [
+ self.put(self.out_ann, [ANN_SHIFTED_SHORT, [
"%s" % protocol[cmd][1],
"0x%02x" % d,
"%s" % protocol[ack_bit][1]]
pass
def found_stop(self, scl, sda):
- self.put(self.output_protocol, [ 'STOP', None, None ])
- self.put(self.output_annotation, [ ANN_SHIFTED, [protocol['STOP'][0]] ])
- self.put(self.output_annotation, [ ANN_SHIFTED_SHORT, [protocol['STOP'][1]] ])
+ self.put(self.out_proto, [ 'STOP', None, None ])
+ self.put(self.out_ann, [ ANN_SHIFTED, [protocol['STOP'][0]] ])
+ self.put(self.out_ann, [ ANN_SHIFTED_SHORT, [protocol['STOP'][1]] ])
self.state = FIND_START
self.is_repeat_start = 0