projects / libsigrokdecode.git / blame
| Commit | Line | Data |
|---|---|---|
| 2c173272 MR |
1 | ## |
| 2 | ## This file is part of the libsigrokdecode project. | |
| 3 | ## | |
| 4 | ## Copyright (C) 2014 Matt Ranostay <mranostay@gmail.com> | |
| 5 | ## | |
| 6 | ## This program is free software; you can redistribute it and/or modify | |
| 7 | ## it under the terms of the GNU General Public License as published by | |
| 8 | ## the Free Software Foundation; either version 2 of the License, or | |
| 9 | ## (at your option) any later version. | |
| 10 | ## | |
| 11 | ## This program is distributed in the hope that it will be useful, | |
| 12 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | ## GNU General Public License for more details. | |
| 15 | ## | |
| 16 | ## You should have received a copy of the GNU General Public License | |
| 17 | ## along with this program; if not, write to the Free Software | |
| 18 | ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | ## | |
| 20 | ||
| 21 | import sigrokdecode as srd | |
| 22 | ||
| 23 | class Decoder(srd.Decoder): | |
| 24 | api_version =1 | |
| 25 | id = 'rgb_led' | |
| 26 | name = 'RGB LED (SPI mode)' | |
| 27 | longname = 'RGB LED string decoder (SPI mode)' | |
| 28 | desc = '' | |
| 29 | license = 'gplv2' | |
| 30 | inputs = ['spi'] | |
| 31 | outputs = ['rgb_led'] | |
| 32 | probes = [] | |
| 33 | optional_probes = [] | |
| 34 | options = {} | |
| 35 | annotations = [ | |
| 36 | ['text', 'Human-readable text'], | |
| 37 | ['warnings', 'Human-readable warnings'], | |
| 38 | ] | |
| 39 | ||
| 40 | def __init__(self, **kwargs): | |
| 41 | self.cmd_ss, self.cmd_es = 0, 0 | |
| 42 | self.mosi_bytes = [] | |
| 43 | ||
| 44 | def start(self): | |
| 45 | self.out_ann = self.register(srd.OUTPUT_ANN) | |
| 46 | ||
| 47 | def putx(self, data): | |
| 48 | self.put(self.cmd_ss, self.cmd_es, self.out_ann, data) | |
| 49 | ||
| 50 | def decode(self, ss, es, data): | |
| 51 | ptype, mosi, miso = data | |
| 52 | ||
| 53 | # Only care about data packets | |
| 54 | if ptype != 'DATA': | |
| 55 | return | |
| 56 | self.ss, self.es = ss, es | |
| 57 | ||
| 58 | if len(self.mosi_bytes) == 0: | |
| 59 | self.cmd_ss = ss | |
| 60 | self.mosi_bytes.append(mosi) | |
| 61 | ||
| 62 | # RGB value == 3 bytes | |
| 63 | if len(self.mosi_bytes) != 3: | |
| 64 | return | |
| 65 | ||
| 66 | red, green, blue = self.mosi_bytes | |
| 67 | rgb_value = int(red) << 16 | |
| 68 | rgb_value |= int(green) << 8 | |
| 69 | rgb_value |= int(blue) | |
| 70 | ||
| 71 | self.putx([0, ["#%.6x" % rgb_value]]) | |
| 72 | self.mosi_bytes = [] |