X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=decoders%2Fonewire_network%2Fpd.py;h=5d850b5897abc5912843d20d5c2dc27335391dba;hp=23402a63ebae8dc86147b0f9a458cfebc8439478;hb=039b0db244e2e592a581a6c9b79a934bde136569;hpb=12851357e784b893e24880efc6cd22a0cbcc64ce diff --git a/decoders/onewire_network/pd.py b/decoders/onewire_network/pd.py index 23402a6..5d850b5 100644 --- a/decoders/onewire_network/pd.py +++ b/decoders/onewire_network/pd.py @@ -14,8 +14,7 @@ ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## along with this program; if not, see . ## import sigrokdecode as srd @@ -33,7 +32,7 @@ command = { } class Decoder(srd.Decoder): - api_version = 2 + api_version = 3 id = 'onewire_network' name = '1-Wire network layer' longname = '1-Wire serial communication bus (network layer)' @@ -45,9 +44,12 @@ class Decoder(srd.Decoder): ('text', 'Human-readable text'), ) - def __init__(self, **kwargs): - self.beg = 0 - self.end = 0 + def __init__(self): + self.reset() + + def reset(self): + self.ss_block = 0 + self.es_block = 0 self.state = 'COMMAND' self.bit_cnt = 0 self.search = 'P' @@ -62,11 +64,11 @@ class Decoder(srd.Decoder): def putx(self, data): # Helper function for most annotations. - self.put(self.beg, self.end, self.out_ann, data) + self.put(self.ss_block, self.es_block, self.out_ann, data) def puty(self, data): # Helper function for most protocol packets. - self.put(self.beg, self.end, self.out_python, data) + self.put(self.ss_block, self.es_block, self.out_python, data) def decode(self, ss, es, data): code, val = data @@ -126,20 +128,18 @@ class Decoder(srd.Decoder): if self.onewire_collect(8, val, ss, es) == 0: return self.putx([0, ['ROM error data: 0x%02x' % self.data]]) - else: - raise Exception('Invalid state: %s' % self.state) # Data collector. def onewire_collect(self, length, val, ss, es): # Storing the sample this sequence begins with. - if self.bit_cnt == 1: - self.beg = ss + if self.bit_cnt == 0: + self.ss_block = ss self.data = self.data & ~(1 << self.bit_cnt) | (val << self.bit_cnt) self.bit_cnt += 1 # Storing the sample this sequence ends with. # In case the full length of the sequence is received, return 1. if self.bit_cnt == length: - self.end = es + self.es_block = es self.data = self.data & ((1 << length) - 1) self.bit_cnt = 0 return 1 @@ -150,7 +150,7 @@ class Decoder(srd.Decoder): def onewire_search(self, length, val, ss, es): # Storing the sample this sequence begins with. if (self.bit_cnt == 0) and (self.search == 'P'): - self.beg = ss + self.ss_block = ss if self.search == 'P': # Master receives an original address bit. @@ -171,7 +171,7 @@ class Decoder(srd.Decoder): # Storing the sample this sequence ends with. # In case the full length of the sequence is received, return 1. if self.bit_cnt == length: - self.end = es + self.es_block = es self.data_p = self.data_p & ((1 << length) - 1) self.data_n = self.data_n & ((1 << length) - 1) self.data = self.data & ((1 << length) - 1)