viktor
b5a8e92e45
Восстановлено из транскрипта сессии после потери рабочего дерева на сервере сборки. Что внутри: - четыре новых модуля прошивки (приём, сборка исходящего, меню Messages); - правки существующих файлов в виде скриптов, с порядком применения; - инструменты стенда: снятие экрана рации по USB, дамп кадров, эталонная сборка пакета; - NOTES.md: что проверено в эфире, что не доделано, где грабли. Работало в эфире в августе 2026: данные ходят в обе стороны в режиме хотспота, рация принимает SMS и показывает на экране. Отправка собрана и сверена с эталоном сервера побайтово, но в эфире не проверялась. Claude-Session: https://claude.ai/code/session_01GJtvG5WwqYNe1b7s9LLtgy
57 строки
2.4 KiB
Python
57 строки
2.4 KiB
Python
#!/usr/bin/env python3
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"""Leave modem mode when the USB host goes away, instead of after a fixed timeout.
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Stock firmware dropped out of hotspot mode if the host was quiet for 20 seconds, which
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made the radio unusable as a permanently attached modem - so that timeout was disabled
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on request. The side effect was that the radio then stayed a modem forever and had to be
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power cycled by hand after every test.
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This ties the exit to the actual USB connection state instead: while the host is present
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the radio stays a modem no matter how quiet it is, and as soon as the cable is pulled (or
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the host stops enumerating it) the radio returns to normal operation by itself.
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"""
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W = "/home/viktor/ogd77rel/uv_src/OpenGD77_MDUV380_DM1701_20260130/MDUV380_firmware/application"
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p = W + "/source/functions/hotspot.c"
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s = open(p).read()
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if "usbHostIsAttached" in s:
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print("already patched")
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raise SystemExit(0)
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# a small helper next to the other statics
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anchor = "static const uint32_t MMDVMHOST_TIMEOUT = MMDVMHOST_TIMEOUT_DISABLED;\n"
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assert anchor in s, "timeout constant not found"
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helper = anchor + """
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// The USB device handle tells us whether a host is actually enumerating us. Losing that
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// is what "the computer went away" really means; host silence alone is not.
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extern USBD_HandleTypeDef hUsbDeviceFS;
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static bool usbHostIsAttached(void)
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{
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return (hUsbDeviceFS.dev_state == USBD_STATE_CONFIGURED);
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}
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"""
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s = s.replace(anchor, helper, 1)
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# make sure the USB device header is included
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if '#include "usb_device.h"' not in s:
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inc_anchor = '#include "functions/ticks.h"\n'
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assert inc_anchor in s, "include anchor missing"
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s = s.replace(inc_anchor, inc_anchor + '#include "usb_device.h"\n', 1)
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# both inactivity checks now also fire when the host has disconnected
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old = """ if ((MMDVMHOST_TIMEOUT != 0) && (nonVolatileSettings.hotspotType == HOTSPOT_TYPE_MMDVM) &&
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((ticksGetMillis() - mmdvmHostLastActiveTime) > MMDVMHOST_TIMEOUT))
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"""
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new = """ if ((nonVolatileSettings.hotspotType == HOTSPOT_TYPE_MMDVM) &&
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((usbHostIsAttached() == false) ||
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((MMDVMHOST_TIMEOUT != 0) && ((ticksGetMillis() - mmdvmHostLastActiveTime) > MMDVMHOST_TIMEOUT))))
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"""
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count = s.count(old)
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assert count == 2, "expected 2 inactivity checks, found %d" % count
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s = s.replace(old, new)
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open(p, "w").write(s)
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print("hotspot.c: modem mode now ends when the USB host disconnects (%d checks)" % count)
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