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feat(prefs): v2.0 settings file -- the struct as it is, behind a CRC

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/prefs holds a header (magic, format version, size, CRC-32), the node's
position and NodePrefs as it is in memory, in place of /new_prefs' two
hand-kept field lists and 0xC0DE00xx schema bumps. A new field goes at the
end of the struct; moving one bumps PREFS_VERSION. sanitize() keeps every
value in range.

The first boot after an update from before 2.0 imports only the first
block of the old file, laid out the same in upstream MeshCore and Solo
(name, position, radio, BLE PIN, scope), then deletes it; everything else
starts from the defaults. Contacts, channels, scopes, waypoints and trails
are untouched.

Gone: the page-order and GPS-interval migrations, the unused
trail_interval_idx / trail_units_idx / repeat_extra_scopes; fav_sort_off
and msg_wake_screen_off become fav_sort and msg_wake (on by default).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Jakub
2026-10-03 00:12:18 +02:00
co-authored by Claude Opus 5.5
parent 9597e1e2a4
commit c3782cb8e5
12 changed files with 268 additions and 893 deletions
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examples/companion_radio/MyMesh.cpp
+7 -5
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@@ -1848,14 +1848,15 @@ MyMesh::MyMesh(mesh::Radio &radio, mesh::RNG &rng, mesh::RTCClock &rtc, SimpleMe
_prefs.bw = LORA_BW;
_prefs.cr = LORA_CR;
_prefs.tx_power_dbm = LORA_TX_POWER;
// Repeater profile default for a true first boot (no prefs file yet, so
// loadPrefs() below is a no-op) — same band-matched seed as the upgrade
// path in DataStore.cpp.
// The repeater's own radio profile, in the companion's band.
seedDefaultRepeaterProfile(_prefs);
_prefs.gps_enabled = 0; // GPS disabled by default
_prefs.gps_interval = 0; // No automatic GPS updates by default
_prefs.radio_fem_rxgain = 1;
_prefs.radio_fem_txgain = 0;
#ifdef DISPLAY_ROTATION
_prefs.display_rotation = DISPLAY_ROTATION;
#endif
_prefs.display_brightness = 2; // medium brightness by default
_prefs.buzzer_volume = 4; // max volume by default
_prefs.quiet_from = 22; // quiet hours (off by default) 22:00-07:00
@@ -1877,6 +1878,8 @@ MyMesh::MyMesh(mesh::Radio &radio, mesh::RNG &rng, mesh::RTCClock &rtc, SimpleMe
_prefs.bot_quiet_start = 0;
_prefs.bot_quiet_end = 0; // start==end → quiet hours disabled
_prefs.dm_show_all = 1; // show all contacts by default
_prefs.fav_sort = 1; // favourites first in lists
_prefs.msg_wake = 1; // a new message turns the screen on
_prefs.dm_resend_count = 2; // auto-resend on-device DMs twice by default
memset(_prefs.dm_notif, 0, sizeof(_prefs.dm_notif));
_prefs.auto_off_secs = 15; // 15 seconds auto-off by default
@@ -1886,8 +1889,7 @@ MyMesh::MyMesh(mesh::Radio &radio, mesh::RNG &rng, mesh::RTCClock &rtc, SimpleMe
_prefs.batt_display_mode = 0; // icon by default
//_prefs.rx_delay_base = 10.0f; enable once new algo fixed
_prefs.client_repeat = 0;
// 0 dB is a real threshold, so "off" is its own sentinel. DataStore sets it
// too, but only when a prefs file exists -- a fresh device must start off.
// 0 dB is a real threshold, so "off" is its own sentinel.
_prefs.repeat_min_snr = NodePrefs::REPEAT_SNR_DISABLED;
#if defined(USE_SX1262) || defined(USE_SX1268)
#ifdef SX126X_RX_BOOSTED_GAIN