Kaj SchittecatandClaude Opus 4.8
2353c56adc
LilyGo T-Display P4 (ESP32-P4 + factory ESP-AT C6) reaches POC: LoRa mesh, Wi-Fi companion (TCP:5000), GPS, SD, battery gauge, chat persistence, and now: - Web VNC/REMOTE/terminal via a first-byte router on the single ESP-AT listener (HTTP verbs -> WS server, '<' frames -> phone companion; both live at once). C6Server gains a _begun gate so never-listening instances stay inert. - VNC freeze fixed: bounded one-CIPSEND-chunk drains under the WS client mutex (a whole-band blocking write starved the main loop), fast-drop of stalled mirror clients, SEND-OK wait 8s->4s. - Wi-Fi robustness: CWJAP? miss-streak tolerance, CIPSERVER liveness verify + re-arm (a re-association silently killed the listener until reboot). - Time sync: HTTP-Date fallback when SNTP is blocked; ClockFloorRTC gains a MAX_PLAUSIBLE_EPOCH guard (all boards) after a garbage-future hardware RTC read (2043) latched the ratchet. - Brightness: RM69A10 DCS 0x51 driven live (CC slider + persisted pref). - Sound: ES8311 + NS4150B notification chimes (P4Audio, esp-bsp-derived register sequence on Wire1), full HAS_UI_SOUND surface + CC Screen/Sound sliders; ccVolumeReleaseCb's hardcoded tanBeep -> uiSoundPreview. - tdisplay_p4/: IDF project (build.sh, c6_at AT-over-SDIO driver, sdkconfigs, fetch-deps.sh vendoring, .gitignore for local payloads). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
15 lines
756 B
C
15 lines
756 B
C
// SPDX-License-Identifier: GPL-3.0-or-later
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#pragma once
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// T-Display P4 speaker path: ES8311 codec (I²C_2, 0x18) + NS4150B class-D amp (always
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// enabled in hardware — LilyGo routes no control pin) fed by I2S MCLK=13 BCLK=12 WS=9
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// DOUT=10. Fixed 16 kHz / 16-bit stereo — plenty for notification chimes, tiny buffers.
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// All calls are safe from any task; init is lazy on first use (~ms, I²C + I2S bring-up).
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#include <stdint.h>
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// Bring the codec + I2S up (idempotent). Returns false if the codec never answered.
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bool p4AudioReady();
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// Blocking sine tone: `amplitude` is the 16-bit peak (0..~30000; the UI uses pct*130).
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// No-op (fast) when amplitude <= 0 or the codec is absent.
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void p4AudioTone(int freq_hz, int duration_ms, int amplitude);
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