Tease apart utility.hpp, other header dependencies.

Trying to get a host-testable FSK demodulator, and finding a lot of M4- and ChibiOS-specific code is getting included. Boo.

firmware/baseband/Makefile

@@ -151,6 +151,7 @@ CPPSRC = main.cpp \
          audio_dma.cpp \
          touch_dma.cpp \
          ../common/utility.cpp \
+         ../common/chibios_cpp.cpp \
          ../common/debug.cpp \
          ../common/gcc.cpp
 

firmware/baseband/baseband_stats_collector.hpp

@@ -26,7 +26,7 @@
 
 #include "dsp_types.hpp"
 #include "message.hpp"
-#include "utility.hpp"
+#include "utility_m4.hpp"
 
 #include <cstdint>
 #include <cstddef>

firmware/baseband/channel_stats_collector.hpp

@@ -29,6 +29,8 @@
 #include <cstdint>
 #include <cstddef>
 
+#include <hal.h>
+
 class ChannelStatsCollector {
 public:
 	template<typename Callback>

firmware/baseband/dsp_demodulate.cpp

@@ -23,6 +23,7 @@
 
 #include "complex.hpp"
 #include "fxpt_atan2.hpp"
+#include "utility_m4.hpp"
 
 #include <hal.h>
 

firmware/baseband/matched_filter.cpp

@@ -21,9 +21,6 @@
 
 #include "matched_filter.hpp"
 
-// TODO: Move the fast complex multiply code to another place.
-#include "dsp_fft.hpp"
-
 namespace dsp {
 namespace matched_filter {