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141 Commits

Author SHA1 Message Date
Jared Boone
136ba895ef Clear spectrum FIFO when streaming is stopped. 2016-01-10 11:00:09 -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
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
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
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
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
778e2d2381 A little code consolidation -- M0APP IRQ. 2016-01-04 10:12:18 -08:00
Jared Boone
5547782f5a Improve FFT twiddle factor precisions using Python SymPy. 
Python math, numpy, scipy produce values with significant rounding errors.
 2016-01-03 21:02:44 -08:00
Jared Boone
963b6e257a FFT twiddles can be used for all K <= table length. 
Change assert to allow FFTs < 8.
 2016-01-03 20:25:31 -08:00
Jared Boone
54e59cc224 Hard-code K=8 FFT twiddle constants for now. 
So low on baseband RAM! This eliminates the sin_f32() function and table, which is only used in the FFT, for the moment.
 2016-01-03 20:08:26 -08:00
Jared Boone
65dd385c94 Little FFT loop indexing tweak. 2016-01-03 17:47:08 -08:00
Jared Boone
62ee26e763 OK... Nuke list initializations. 2016-01-03 16:28:09 -08:00
Jared Boone
422f6c6960 Don't pass by reference in message constructors. 2016-01-03 16:21:17 -08:00
Jared Boone
b5aa2b205f Implement AMConfigureMessage from M0 to M4. 2016-01-03 14:31:39 -08:00
Jared Boone
f2f7032615 Wideband FM configuration messages from M0. 2016-01-03 13:38:55 -08:00
Jared Boone
0497dbf62f NBFM configuration message. 
Allows changing NBFM filter configurations from M0.
 2016-01-03 12:46:21 -08:00
Jared Boone
c179b9e1cd Move FIR filter configs to common/, so M0 can use it. 
Planning to pass from M0 to M4 so M4 doesn't need to keep all these different filter configs in text section.
 2016-01-03 12:45:15 -08:00
Jared Boone
39ca6fec62 Transform update spectrum event into message. 2016-01-03 12:05:47 -08:00
Jared Boone
ff05833b02 Use new decimation filters in AIS processor. 2016-01-01 13:20:02 -08:00
Jared Boone
3db0820b54 Remove LOCATE_IN_RAM from DMA IRQ handler 
Not needed for M4, was causing code to be located in data RAM, and veneers to jump between code and data RAM. Reclaimed a few hundred bytes of code RAM.
 2015-12-29 11:24:23 -08:00
Jared Boone
87c9772128 More M4 instruction wrappers, with vector typed arguments. 2015-12-28 16:52:10 -08:00
Jared Boone
f74e6690cb Utilize class types for member variables -- slightly more generic. 2015-12-28 16:51:34 -08:00
Jared Boone
ccc3402869 Add complex32_t type. 2015-12-28 10:14:35 -08:00
Jared Boone
dc86db5b87 Reminder to my future self to not over-optimize complex conjugate multiply. 2015-12-28 10:12:40 -08:00
Jared Boone
b8726b6ecf Un-bitfield PinConfig, GCC 5 didn't like it. 
And GCC 4.9 was very touchy about it. Attempts to fix by other means broke MAX2837 register readback (but not writing?). It suggests there might be a deeper issue -- setup/hold timing?
 2015-12-24 10:36:26 -08:00
Jared Boone
b65cd72a68 Remove some pointless GCC-isms. 2015-12-17 10:12:03 -08:00
Jared Boone
750506b33e Move more code from .hpp to .cpp. 2015-12-16 22:35:26 -08:00
Jared Boone
f204a58d24 WM8731 header clean-up. 2015-12-14 14:03:17 -08:00
Jared Boone
552bba47ea Move a lot of WM8731 functions to .cpp. 2015-12-14 13:57:45 -08:00
Jared Boone
fa3eaf0820 Disable audio codec wait-for-zero-crossing volume change mode. 
This may explain (now unreproduceable) issue where UI volume changes weren't always changing the gain on the audio codec.
 2015-12-14 12:26:41 -08:00
Jared Boone
24d60a11e3 Add WM8731.read() for cached values. 2015-12-14 12:09:01 -08:00
Jared Boone
9170c66bc0 Remove unused function declaration. 2015-12-12 11:37:59 -08:00
Jared Boone
b058d609eb Move packet timestamping into baseband. 
Now reads the RTC peripheral at the end of each received packet.
TODO: Improve resolution to milliseconds or better.
TODO: Work back from end of packet to compute timestamp for beginning of packet.
TODO: Reuse ChibiOS RTC code, which isn't used now because ChibiOS on M0 core is responsible for RTC configuration, and including ChibiOS RTC API on M4 will also try to initialize/manage the peripheral.
 2015-12-12 11:37:30 -08:00
Jared Boone
088f60f2bc Extract spectrum collector from BasebandProcessor. 
Code size improvement, and less confused classes. :-)
 2015-12-11 12:26:45 -08:00
Jared Boone
a7afc58cf8 More consistent use of pass-by-ref, const in baseband code. 2015-12-10 15:18:02 -08:00
Jared Boone
83bf2a9a36 Tweak BasebandConfiguration constructors to avoid surprise type conversions. 2015-12-10 14:40:48 -08:00
Jared Boone
3ed77af0c1 BasebandProcessor: Streamline construction of some messages. 2015-12-10 12:25:11 -08:00
Jared Boone
4d52f73f6a Move Manchester to common/. 2015-12-10 11:28:18 -08:00
Jared Boone
eb1402764e Move ERT packet type to its rightful place. 
No longer mixed up with Message types.
 2015-12-08 16:19:27 -08:00
Jared Boone
7de187e267 Move ERT, AIS packet code to common/. 2015-12-08 16:08:20 -08:00