feat(cpu): smoothed RP2350 CPU/Clock telemetry + 0xfc HID report

nick/DS5Dongle-OLED-Edition-steam-machine

Add cpu_temp_raw_smoothed() (cmd.cpp/cmd.h): 256-sample average over a
slow EMA (alpha=0.15) so the RP2350 on-die temperature converges to the
true value instead of chasing per-sample 12-bit ADC noise (~1 LSB =
0.47 C). Single source of truth, ADC initialised in one place.

Also export CPU/Clock telemetry on HID feature report 0xfc (set_khz,
cached real_khz, vreg code, ADC ch4 raw). The handler is dormant: live
read over WebHID is not feasible (Chrome requires the report declared
in the HID descriptor, and declaring the OLED Edition vendor reports
breaks DualSense enumeration on Windows). It is harmless and left for a
possible future non-WebHID consumer. Link hardware_adc.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

This commit is contained in:

Thierry Perraut

2026-05-18 07:31:13 -06:00

committed by

Marceline

co-authored by

Claude Opus 4.7

parent 4552fd2b41

commit 5425b21f00

3 changed files with 77 additions and 1 deletions

									
										CMakeLists.txt
									
		+1
		
												View File
												
				@@ -171,6 +171,7 @@ target_link_libraries(ds5-bridge

				        hardware_timer

				        hardware_flash

				        hardware_spi

				        hardware_adc

				        pico_btstack_classic

				#        pico_cyw43_arch_threadsafe_background

				        pico_cyw43_arch_poll