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1915ff980f
Commit Graph

276 Commits

Author SHA1 Message Date
Jared Boone
1915ff980f Add AM processor decim_2. 2016-01-30 17:28:11 -08:00
Jared Boone
b029bacd8c Remove channel decimation from AMConfigureMessage. 2016-01-30 17:21:48 -08:00
Jared Boone
220b7b0a6a Add SSB demodulator. 2016-01-29 22:27:18 -08:00
Jared Boone
a558565886 Further template BlockDecimator by element type, use for audio buffer. 
Appropriating for use as a buffer accumulator that will save up enough audio samples to put into an audio DMA buffer.
 2016-01-29 19:25:08 -08:00
Jared Boone
aead1d8798 Change NBFM audio fs->24k, AM ->12k. 
Send channel decimation factor from application to baseband.
 2016-01-29 19:23:30 -08:00
Jared Boone
28e5b7e4af Remove some filter constructors, reset Z on configure(). 2016-01-29 17:06:22 -08:00
Jared Boone
d984532190 Converging AM, NBFM processors for eventual merging. 2016-01-29 16:18:03 -08:00
Jared Boone
7c65a2d650 Clean up baseband processor statics. 2016-01-29 16:11:00 -08:00
Jared Boone
96898f82b2 Pass IIR configs from application to baseband. 2016-01-29 15:57:20 -08:00
Jared Boone
01e14ecbcf Move IIR struct and configs to common/. 2016-01-29 15:43:39 -08:00
Jared Boone
db642cac8d Change audio sampling rates on NBFM, AM modes. 2016-01-29 15:33:01 -08:00
Jared Boone
0e436ded14 Add IIR configs for lower audio sampling rates. 2016-01-29 15:32:32 -08:00
Jared Boone
a2a169352c Rename existing IIR configs to reflect fs=48k design. 2016-01-29 15:24:31 -08:00
Jared Boone
1aa391bac8 Whoops. Revert to baseband -O3 compiler flag. 
Was running out of CPU in ERT mode.
 2016-01-17 14:08:49 -08:00
Jared Boone
8d2a86a499 Change baseband optimization from -O3 to -O2 
Significant size benefit with negligable performance effect.
 2016-01-16 14:10:22 -08:00
Jared Boone
58e6d26910 Move AudioOutput back to inside audio processor classes. 
Was wasting precious RAM making it static. I lose 400 bytes of .text, not sure why, but I think the trade is worth it.
 2016-01-16 13:56:23 -08:00
Jared Boone
1d0de2240d Protect/private some ThreadBase implementation details. 2016-01-15 20:25:29 -08:00
Jared Boone
f06d5989db Move EventDispatcher code out of .hpp. 2016-01-12 22:20:13 -08:00
Jared Boone
731cea1b96 Move event.* code into event_m[04].*. 
Slightly more duplication of code now. Need a base class...
 2016-01-12 22:00:42 -08:00
Jared Boone
e73a9f98a1 Move EventDispatcher code into event_*.hpp. 
More code redistribution coming shortly...
 2016-01-12 21:49:29 -08:00
Jared Boone
b993e3d73e Consolidate spectrum collector message handling. 2016-01-12 10:32:00 -08:00
Jared Boone
a577bc9664 Refactor naughty static variable hiding in WidebandSpectrum. 2016-01-11 17:18:24 -08:00
Jared Boone
1f3c182b7f Add missing message handler for wideband spectrum. 
Spectrum processing was not enabled, and hence wideband spectrum was not being displayed.
 2016-01-11 16:31:49 -08:00
Jared Boone
55e3a70fde Change baseband audio processing pipeline to all floats. 2016-01-11 16:15:42 -08:00
Jared Boone
5e917ebb2c Cache IIR filter state because compiler *sometimes* doesn't want to. 2016-01-11 15:44:42 -08:00
Jared Boone
e169a46367 Un-static squelch history. 2016-01-11 11:38:33 -08:00
Jared Boone
64966d4539 Fix NaNs coming out of angle_approx_0deg27(). 
Used in FM demodulator, was causing downstream problems when using the floating point values directly.
 2016-01-11 11:17:54 -08:00
Jared Boone
5a532f34a7 Remove extra buffer structs/copies. 2016-01-11 09:35:58 -08:00
Jared Boone
877a66ca78 Create AudioOutput singleton, from extracted BasebandProcessor code. 2016-01-10 20:25:24 -08:00
Jared Boone
364217a2b5 Rename IIR filter config variables. 2016-01-10 20:20:07 -08:00
Jared Boone
13d260f936 Add IIR passthrough filter config. 2016-01-10 20:18:12 -08:00
Jared Boone
5dac0bbe49 Squelch special case when threshold == 0, do not squelch. 2016-01-10 20:16:21 -08:00
Jared Boone
01df79641c Rename squelch algorithm variable for clarity. 
Helps to understand meaning of threshold.
 2016-01-10 20:14:26 -08:00
Jared Boone
6f00687d88 Add configure() for IIR filter. 2016-01-10 20:11:27 -08:00
Jared Boone
497adda390 IIR default constructor passes no audio. 
Debugging mechanism -- filter must be configured to pass audio.
 2016-01-10 20:11:05 -08:00
Jared Boone
172a6da36c Unconst IIR configuration and filter. 2016-01-10 20:06:58 -08:00
Jared Boone
eb5b2d7d30 Fix broken audio stats when audio is muted. 2016-01-10 11:34:06 -08:00
Jared Boone
4ea84301c6 For non-audio modes, don't bother muting audio. 
It's assumed base class will start with audio muted.
 2016-01-10 11:33:44 -08:00
Jared Boone
d6f797540d Remove baseband message from queue after it is processed. 
Application code can now wait on queue empty and know the baseband's state.
 2016-01-10 11:15:37 -08:00
Jared Boone
136ba895ef Clear spectrum FIFO when streaming is stopped. 2016-01-10 11:00:09 -08:00
Jared Boone
62e5ec1dbb Postpone clearing channel_spectrum_request_update until finished with data in array. 
There was potential for new samples to be copied into array as the FFT and post-processing were occuring.
 2016-01-10 10:45:22 -08:00
Jared Boone
d821afc60d Spectrum streaming control, spectrum attributes back in each frame. 
TODO: This feels kinda complex, and there's some repeated Processor code that needs to be refactored into a base class.
 2016-01-10 10:42:20 -08:00
Jared Boone
0647f26707 Move SGPIO configuration and control to baseband firmware. 
Addresses long-standing and annoying bug where SGPIO DMA channel would not disable -- and not configure cleanly next time it was needed. My theory is that the DMA channel couldn't disable until it got a request from the peripheral, and sometimes the peripheral was disabled before that last request.

Anyway, the baseband firmware should control the SGPIO, methinks, despite the impact on baseband code size.
 2016-01-10 10:23:39 -08:00
Jared Boone
c75c167c25 Rename GPDMA channel disable_force() to disable(). 
There was nothing particularly forceful about the disable_force() code. Whether it's a "forced" operation depends on what happens before and after (HALT and ACTIVE flags are involved in a smooth disabling of the channel).
 2016-01-10 10:11:16 -08:00
Jared Boone
365c2ef946 Handle baseband::dma::wait_for_rx_buffer() returning empty buffer. 
Was technically OK before, because sample count was zero. But seems silly (and vaguely dangerous) to call all that code with a nullptr.
 2016-01-09 12:20:57 -08:00
Jared Boone
7710b2d1fa ChannelSpectrumConfig message subsumes FIFONotify. 
Separate channel spectrum config from spectrum data. This will permit sending config info only when necessary.
Use type information of ChannelSpectrum to statically define number of FFT bins elsewhere.
TODO: Posting configuration message way too often. Fixing that is the next step.
 2016-01-06 12:10:30 -08:00
Jared Boone
aaa1bc3a09 Transmit ChannelSpectrum data through separate FIFO. 
Allows handling of data during LCD "vertical retrace", independent of other baseband->application messages. A bit kludgy still...
 2016-01-06 11:34:41 -08:00
Jared Boone
dcb2c46c57 Add wideband FM spectrum waterfall. 2016-01-04 17:27:18 -08:00
Jared Boone
36021689f9 Remove commented, dead code. 2016-01-04 15:42:19 -08:00
Jared Boone
73671ca5f6 Update sample rate and buffer size comments in execute() methods. 2016-01-04 15:41:49 -08:00