## 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 <http://www.gnu.org/licenses/>.
##
import sigrokdecode as srd
from .lists import *
+class SamplerateError(Exception):
+ pass
+
class Decoder(srd.Decoder):
- api_version = 1
+ api_version = 3
id = 'ir_nec'
name = 'IR NEC'
longname = 'IR NEC'
license = 'gplv2+'
inputs = ['logic']
outputs = ['ir_nec']
- probes = [
+ channels = (
{'id': 'ir', 'name': 'IR', 'desc': 'Data line'},
- ]
- optional_probes = []
- options = {
- 'polarity': ['Polarity', 'active-low'],
- }
- annotations = [
- ['bit', 'Bit'],
- ['agc-pulse', 'AGC pulse'],
- ['longpause', 'Long pause'],
- ['shortpause', 'Short pause'],
- ['stop-bit', 'Stop bit'],
- ['leader-code', 'Leader code'],
- ['addr', 'Address'],
- ['addr-inv', 'Address#'],
- ['cmd', 'Command'],
- ['cmd-inv', 'Command#'],
- ['repeat-code', 'Repeat code'],
- ['remote', 'Remote'],
- ['warnings', 'Warnings'],
- ]
+ )
+ options = (
+ {'id': 'polarity', 'desc': 'Polarity', 'default': 'active-low',
+ 'values': ('active-low', 'active-high')},
+ )
+ annotations = (
+ ('bit', 'Bit'),
+ ('agc-pulse', 'AGC pulse'),
+ ('longpause', 'Long pause'),
+ ('shortpause', 'Short pause'),
+ ('stop-bit', 'Stop bit'),
+ ('leader-code', 'Leader code'),
+ ('addr', 'Address'),
+ ('addr-inv', 'Address#'),
+ ('cmd', 'Command'),
+ ('cmd-inv', 'Command#'),
+ ('repeat-code', 'Repeat code'),
+ ('remote', 'Remote'),
+ ('warnings', 'Warnings'),
+ )
annotation_rows = (
('bits', 'Bits', (0, 1, 2, 3, 4)),
('fields', 'Fields', (5, 6, 7, 8, 9, 10)),
[11, ['%s: %s' % (dev, btn[0]), '%s: %s' % (dev, btn[1]),
'%s' % btn[1]]])
- def __init__(self, **kwargs):
+ def __init__(self):
self.state = 'IDLE'
self.ss_bit = self.ss_start = self.ss_other_edge = self.ss_remote = 0
- self.data = self.count = self.active = self.old_ir = None
+ self.data = self.count = self.active = None
self.addr = self.cmd = None
def start(self):
- # self.out_python = self.register(srd.OUTPUT_PYTHON)
self.out_ann = self.register(srd.OUTPUT_ANN)
self.active = 0 if self.options['polarity'] == 'active-low' else 1
- self.old_ir = 1 if self.active == 0 else 0
+
+ # Set the initial (assumed) value of the pin as per user-config.
+ self.initial_pins = [1 if self.active == 0 else 0]
def metadata(self, key, value):
if key == srd.SRD_CONF_SAMPLERATE:
self.ss_bit = self.ss_start = self.samplenum
return ret == 0
- def decode(self, ss, es, data):
- if self.samplerate is None:
- raise Exception("Cannot decode without samplerate.")
- for (self.samplenum, pins) in data:
- self.ir = pins[0]
+ def decode(self):
+ if not self.samplerate:
+ raise SamplerateError('Cannot decode without samplerate.')
+ while True:
+ # Wait for any edge (rising or falling).
+ (self.ir,) = self.wait({0: 'e'})
- # Wait for an "interesting" edge, but also record the other ones.
- if self.old_ir == self.ir:
- continue
if self.ir != self.active:
+ # Save the non-active edge, then wait for the next edge.
self.ss_other_edge = self.samplenum
- self.old_ir = self.ir
continue
b = self.samplenum - self.ss_bit
self.putremote()
self.ss_bit = self.ss_start = self.samplenum
self.state = 'IDLE'
- else:
- raise Exception('Invalid state: %s' % self.state)
-
- self.old_ir = self.ir
-