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): | |
| 12851357 | 24 | api_version = 2 |
| ae036d34 | 25 | id = 'rgb_led_spi' |
| e85b0440 UH |
26 | name = 'RGB LED (SPI)' |
| 27 | longname = 'RGB LED string decoder (SPI)' | |
| a7c8dc5e | 28 | desc = 'RGB LED string protocol (RGB values clocked over SPI).' |
| 9eac0fe3 | 29 | license = 'gplv2+' |
| 2c173272 | 30 | inputs = ['spi'] |
| ae036d34 | 31 | outputs = ['rgb_led_spi'] |
| da9bcbd9 BV |
32 | annotations = ( |
| 33 | ('rgb', 'RGB values'), | |
| 34 | ) | |
| 2c173272 | 35 | |
| 92b7b49f | 36 | def __init__(self): |
| 486b19ce | 37 | self.ss_cmd, self.es_cmd = 0, 0 |
| 2c173272 MR |
38 | self.mosi_bytes = [] |
| 39 | ||
| 40 | def start(self): | |
| 41 | self.out_ann = self.register(srd.OUTPUT_ANN) | |
| 42 | ||
| 43 | def putx(self, data): | |
| 486b19ce | 44 | self.put(self.ss_cmd, self.es_cmd, self.out_ann, data) |
| 2c173272 MR |
45 | |
| 46 | def decode(self, ss, es, data): | |
| 47 | ptype, mosi, miso = data | |
| 48 | ||
| 8967e839 | 49 | # Only care about data packets. |
| 2c173272 MR |
50 | if ptype != 'DATA': |
| 51 | return | |
| 52 | self.ss, self.es = ss, es | |
| 53 | ||
| 54 | if len(self.mosi_bytes) == 0: | |
| 486b19ce | 55 | self.ss_cmd = ss |
| 2c173272 MR |
56 | self.mosi_bytes.append(mosi) |
| 57 | ||
| 58 | # RGB value == 3 bytes | |
| 59 | if len(self.mosi_bytes) != 3: | |
| 60 | return | |
| 61 | ||
| 8967e839 | 62 | red, green, blue = self.mosi_bytes |
| 35b380b1 | 63 | rgb_value = int(red) << 16 | int(green) << 8 | int(blue) |
| 2c173272 | 64 | |
| 486b19ce | 65 | self.es_cmd = es |
| 21b39043 | 66 | self.putx([0, ['#%.6x' % rgb_value]]) |
| 2c173272 | 67 | self.mosi_bytes = [] |