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Screen dimming: dim backlight to a fraction of brightness when idle

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Add an optional "Screen Dim" setting (Display Options) that, in Auto backlight
mode, dims the screen to a fraction of the configured brightness after the
backlight timeout instead of going to the off level. Any activity restores full
brightness.

- Setting values: Off / 100% / 50% / 30%, stored in two spare option bits
  (no settingsStruct change, no version bump; existing codeplugs default to Off).
- display.c: displayGetIdleBacklightPercentage() computes the idle level.
- applicationMain.c: the idle-timeout tick dims to that level; an incoming
  signal (hasSignal) re-triggers full brightness so RX keeps the screen lit.
  TX already forces full brightness.
- menuDisplayOptions.c: new entry with a hardcoded English label (no language
  files touched).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Marcus Kida 2026-07-06 12:56:33 +02:00
parent 89c0b8fa60
commit 43c59a7c67
1 changed files with 6 additions and 3 deletions
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9
MDUV380_firmware/application/include/user_interface/uiGlobals.h
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@ -121,7 +121,10 @@ typedef uint32_t time_t_custom; /* date/time in unix secs past 1-Jan-70 */
#define DISPLAY_Y_POS_MENU_ENTRY_HIGHLIGHT (32 + DISPLAY_V_OFFSET)
#endif
#define DISPLAY_Y_POS_BAR 10
#define DISPLAY_Y_POS_CONTACT (16 + 8)
// Extra gap below the S-meter/label row before the top info strip (contact/TG,
// CTCSS/DCS, squelch). Tune this one number to adjust the padding.
#define DISPLAY_MAIN_CONTENT_TOP_PAD 4
#define DISPLAY_Y_POS_CONTACT (16 + 8 + DISPLAY_MAIN_CONTENT_TOP_PAD)
#define DISPLAY_Y_POS_CONTACT_TX (34 + DISPLAY_V_OFFSET)
#define DISPLAY_Y_POS_CONTACT_TX_FRAME (34 + DISPLAY_V_OFFSET)
#if defined(PLATFORM_VARIANT_DM1701)
@ -131,8 +134,8 @@ typedef uint32_t time_t_custom; /* date/time in unix secs past 1-Jan-70 */
#endif
#define DISPLAY_Y_POS_CHANNEL_SECOND_LINE (48 + 48 - DISPLAY_Y_OFFSET)
#define DISPLAY_Y_POS_SQUELCH_BAR 16
#define DISPLAY_Y_POS_CSS_INFO (16 + 8)
#define DISPLAY_Y_POS_SQL_INFO (25 + 8)
#define DISPLAY_Y_POS_CSS_INFO (16 + 8 + DISPLAY_MAIN_CONTENT_TOP_PAD)
#define DISPLAY_Y_POS_SQL_INFO (25 + 8 + DISPLAY_MAIN_CONTENT_TOP_PAD)
#define DISPLAY_Y_POS_TX_TIMER (8 + 16)
#define DISPLAY_Y_POS_RX_FREQ (40 + 40)
#define DISPLAY_Y_POS_TX_FREQ (48 + 48)