diff options
| -rw-r--r-- | decoders/rgb_led/__init__.py | 26 | ||||
| -rw-r--r-- | decoders/rgb_led/pd.py | 72 |
2 files changed, 98 insertions, 0 deletions
diff --git a/decoders/rgb_led/__init__.py b/decoders/rgb_led/__init__.py new file mode 100644 index 0000000..e08adbe --- /dev/null +++ b/decoders/rgb_led/__init__.py @@ -0,0 +1,26 @@ +## +## This file is part of the libsigrokdecode project. +## +## Copyright (C) 2014 Matt Ranostay <mranostay@gmail.com> +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; either version 2 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## 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 +## + +''' +This protocol decoder can decode generic RGB LED string values that are +clocked over SPI in RGB values. +''' + +from .pd import * diff --git a/decoders/rgb_led/pd.py b/decoders/rgb_led/pd.py new file mode 100644 index 0000000..38bd64d --- /dev/null +++ b/decoders/rgb_led/pd.py @@ -0,0 +1,72 @@ +## +## This file is part of the libsigrokdecode project. +## +## Copyright (C) 2014 Matt Ranostay <mranostay@gmail.com> +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; either version 2 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## 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 +## + +import sigrokdecode as srd + +class Decoder(srd.Decoder): + api_version =1 + id = 'rgb_led' + name = 'RGB LED (SPI mode)' + longname = 'RGB LED string decoder (SPI mode)' + desc = '' + license = 'gplv2' + inputs = ['spi'] + outputs = ['rgb_led'] + probes = [] + optional_probes = [] + options = {} + annotations = [ + ['text', 'Human-readable text'], + ['warnings', 'Human-readable warnings'], + ] + + def __init__(self, **kwargs): + self.cmd_ss, self.cmd_es = 0, 0 + self.mosi_bytes = [] + + def start(self): + self.out_ann = self.register(srd.OUTPUT_ANN) + + def putx(self, data): + self.put(self.cmd_ss, self.cmd_es, self.out_ann, data) + + def decode(self, ss, es, data): + ptype, mosi, miso = data + + # Only care about data packets + if ptype != 'DATA': + return + self.ss, self.es = ss, es + + if len(self.mosi_bytes) == 0: + self.cmd_ss = ss + self.mosi_bytes.append(mosi) + + # RGB value == 3 bytes + if len(self.mosi_bytes) != 3: + return + + red, green, blue = self.mosi_bytes + rgb_value = int(red) << 16 + rgb_value |= int(green) << 8 + rgb_value |= int(blue) + + self.putx([0, ["#%.6x" % rgb_value]]) + self.mosi_bytes = [] |