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https://github.com/ALLFATHER-BV/wadamesh.git
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Kaj SchittecatandClaude Opus 5.5
9739e96020
A Wi-Fi switch checks before the radio's first start after boot that 50 KB of internal RAM is free (and a 20 KB block), the reserve the boot co-init and a cold Bluetooth start use. With Bluetooth on, the T-Deck Pro had 50676 free, 524 bytes short, so Wi-Fi only came up with Bluetooth turned off first. The Pro and the Max kept their LVGL draw band (240 x 24, 11.5 KB) in internal DMA RAM, but the e-paper flush only copies it with the CPU into the driver's PSRAM canvas, so it never needed that RAM. It now lives in PSRAM like the T-Deck's, which leaves the check over 10 KB to spare instead of a hair under. New CAP_EPAPER names the e-paper boards for this and the screensaver gate. The check itself moves into WifiColdStartGate.h with a host test that runs the issue's numbers. The Pager keeps skipping it: its main loop orders the start and reports a failed allocation itself. That handoff is not a memory fix (it pauses Bluetooth traffic, NimBLE stays resident) and the other boards' loop has no fallback when esp_wifi_init fails, so it is not ported here. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
61 lines
2.7 KiB
C++
61 lines
2.7 KiB
C++
// SPDX-License-Identifier: GPL-3.0-or-later
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//
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// Host test for the Wi-Fi switches' cold-start check (#763):
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// src/ui-touch/WifiColdStartGate.h, the decision wifiEnableGate() makes before a
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// Wi-Fi switch starts the radio for the first time after boot.
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//
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// c++ -std=c++17 -Wall -Wextra -I src test/test_wifi_cold_start_gate.cpp \
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// -o /tmp/test_wifi_cold_start_gate && /tmp/test_wifi_cold_start_gate
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#include <assert.h>
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#include <stdio.h>
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#include "ui-touch/WifiColdStartGate.h"
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using namespace WifiColdStartGate;
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static bool ready(bool up, bool pager, size_t f, size_t b) {
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return decide(up, pager, f, b) == Decision::Ready;
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}
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int main() {
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// The reserve is the one the boot co-init and a cold Bluetooth start use.
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static_assert(kMinFree == 51200 && kMinBlock == 20480, "same reserve as enableBle()");
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// ---- #763: oumike's T-Deck Pro V1.0, Bluetooth on, Wi-Fi off, after a reboot ----
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// "[wifi] cold start refused: free=50676 maxblk=40948": 524 bytes short of the free
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// total, with a largest block twice what it needs.
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const size_t kProFree = 50676, kProBlock = 40948;
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assert(!ready(false, false, kProFree, kProBlock));
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assert(kMinFree - kProFree == 524);
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// The fix moves the e-paper boards' LVGL draw band (240 x 24 px, RGB565) out of
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// internal RAM into PSRAM; it was allocated once at boot and held for good.
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const size_t kBand = 240u * 24u * 2u;
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assert(kBand == 11520);
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assert(ready(false, false, kProFree + kBand, kProBlock));
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// With room to spare, not by a hair: over 10 KB above the reserve, so the small
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// swings in heap use the issue describes no longer decide it.
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assert(kProFree + kBand - kMinFree > 10u * 1024u);
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// And the band coming back to the free total does not depend on it landing in the
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// largest block: the block was never the short side.
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assert(kProBlock >= kMinBlock);
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// ---- the rules themselves ----
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// Driver already up (a later off/on toggle): no new allocation, whatever the heap.
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assert(ready(true, false, 0, 0));
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assert(ready(true, false, kProFree, kProBlock));
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// The Pager's main loop orders the start and reports a failure itself.
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assert(ready(false, true, 0, 0));
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// Exact thresholds pass, one byte under either refuses.
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assert(ready(false, false, kMinFree, kMinBlock));
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assert(!ready(false, false, kMinFree - 1, kMinBlock));
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assert(!ready(false, false, kMinFree, kMinBlock - 1));
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// A fragmented heap: plenty free in total, no block big enough.
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assert(!ready(false, false, 120u * 1024u, 16u * 1024u));
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// #762's T-Deck Pro boot line, with Bluetooth on: "boot int: free=56308 largest=47092".
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assert(ready(false, false, 56308, 47092));
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printf("test_wifi_cold_start_gate: all passed\n");
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return 0;
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}
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