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Author SHA1 Message Date
Jared Boone
55e3a70fde Change baseband audio processing pipeline to all floats. 2016-01-11 16:15:42 -08:00
Jared Boone
b9f124850b Add buffer_t<float> type alias. 2016-01-11 16:10:48 -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
146caaab6f Consolidate baseband disable code. 2016-01-10 11:10:13 -08:00
Jared Boone
d9bfaaf805 Stop baseband streaming when switching radio configuration. 
Probably unnecessary, but feeling paranoid about changing sample rates while there's a processor actively handling samples, and potentially maxing out the M4 core.
 2016-01-10 11:01:54 -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
8fde4972b4 Methods to peek and skip messages in queue. 
Allows receiver to not consume a message until after it's handled. And that enables the transmitter to block until the queue is empty, knowing that when unblocked, all messages in queue have been handled.
 2016-01-10 10:15:25 -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
43d6098c48 Move baseband_sgpio.* to common/. 
It'll soon be used by M4 code, not M0. SGPIO baseband streaming needs to be tightly controlled by... the baseband!
 2016-01-09 17:57:37 -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
c3167ac27c Missing #includes. 2016-01-09 12:17:17 -08:00
Jared Boone
8fba47b7d8 FIFO in and out indices should be volatile. 
Later code revealed that the receiving core never notices (reads anew) the _in member variable when waiting for the FIFO to be empty (_in == _out).
 2016-01-07 10:53:27 -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
ba33cc737d Transmit DisplayFrameSync message, handle in WaterfallSpectrum. 
More kludginess, especially around initialization and timing. But it addresses the flickering lines of pixels at the bottom of the waterfall scroll area!
 2016-01-06 11:36:57 -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
2cd28fcc0c Make FIFO::in() more consistent with other functions. 2016-01-06 11:04:25 -08:00
Jared Boone
4059e9cebe Reintroduce FIFO in/out for templated FIFO element type. 2016-01-06 11:01:02 -08:00
Jared Boone
b05923eab6 Change FIFO is_full() to make more sense. 2016-01-06 10:58:42 -08:00
Jared Boone
ea8c186fcf Revert "Try to fix dumb S3 URLs." 
This reverts commit 794925442e.
 2016-01-05 21:29:40 -08:00
Jared Boone
794925442e Try to fix dumb S3 URLs. 2016-01-05 21:04:35 -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
Jared Boone
c1e5577669 Eliminate duplicate code between event_m4.hpp, event.hpp. 
event.* is common code, _m0 and _m4 contain specific event mask definitions.
 2016-01-04 12:54:05 -08:00
Jared Boone
229c1e9a3c Move M4 MAPP IRQ handler to be with the event handler class. 
event.[ch]pp and event_m4.[ch]pp are looking almost the same now...
 2016-01-04 12:44:28 -08:00
Jared Boone
0fe5409357 Move M4TXEVENT interrupt control into event handler run(). 2016-01-04 12:15:35 -08:00
Jared Boone
69b258cc2b Consolidate event handler code, including IRQ. 2016-01-04 12:15:10 -08:00
Jared Boone
b058c0fe00 Consolidate M0-specific code. 2016-01-04 12:07:30 -08:00
Jared Boone
a27489eb21 Consolidating M4-specific saturation flag code. 2016-01-04 12:00:52 -08:00
Jared Boone
b42d3cc9d5 Move BasebandStatsCollector code into .cpp, as much as possible. 
Still have template for callback, but hopefully will mitigate bloat when BasebandStatsCollector is used in multiple places.
 2016-01-04 11:49:39 -08:00
Jared Boone
6d3cdb9bbf Separate template/callback code from method code. 
...for more small reductions in code size.
 2016-01-04 11:45:33 -08:00
Jared Boone
cd3a5afdb1 More templating elimination (MatchedFilter), some #include clean-up. 
592 bytes!
 2016-01-04 11:32:47 -08:00
Jared Boone
e6f69c90f2 Reduce inlining of FIR configuration due to templating. 
80 bytes!
 2016-01-04 11:20:28 -08:00