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New LED hardware driver: WLED Pixel Bus - #5704

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DedeHai wants to merge 254 commits into

wled:mainfrom

DedeHai:WLEDpixelBus_PR

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Commits on Mar 8, 2026
- fix rmt channels not awaiting finish TX of all channels
  DedeHai
  committed
  77acf8a
- fix bus type
  DedeHai
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  4ea2ee5
Commits on Mar 9, 2026
- example of adding a new bus type (TM1815)
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  d06ebca
- simplify bus tracking
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  17aa057
Commits on Mar 10, 2026
- fixes for I2S (almost working) add SPI for C3 (untested)
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  a8c91f3
- revert unnecessary changes
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  df9b94e
- intermediate fixes
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  83a9dfe
- fix I2S crashes
  DedeHai
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  b34f3d3
- increase RMT priority, remove debug
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  ec22cae
- fix RMT parallel sending
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  6b8cfae
- fix sequential I2S send
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  7133dd3
- fix compile errors for C3 SPI driver, enable driver selection for C3
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  2a4c9b1
Commits on Mar 11, 2026
Commits on Mar 12, 2026
- fix SPI output (blank out command byte), wait for spi buses to be ready to avoid multiple sendouts
  DedeHai
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  8e309a8
- fix output for shorter buses (now blanks output instead of sending zeroes)
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  0992570
- adding workaround "hack" for bus deadlock
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  4486765
- add missing pinmanager allocation for digital pin
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  4f56f1e
- SPI DMA now mostly working
  DedeHai
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  8a93cff
Commits on Mar 13, 2026
- cleanup
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  6a8c769
- Fix LCD output for S3, now working
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  2dee50a
- adding 1MHz WS281x_fast timing
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  1522d04
- refactoring: move driver types to individual files
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  eb8c405
- fix RGB-CCT
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  fecf36d
- change I2S timing calculation to match 0hi period
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  6fe6ed8
- add dynamic RMT channel assignment to maximize the memory blocks and reduce interrupt frequency
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  5d5d7ff
- add ESP8266 support (untested)
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  ed09c7b
- fix file access glitch on C3
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  959b69b
- use all 16 available LCD channels on S3, optimize speed in 4stepencoding
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  780fdeb
- minor optimizations for LCD driver
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  669221c
- Fix output on ESP8266
  DedeHai
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  303ef48
- attempt at fixing I2S on S2 but its not yet working
  DedeHai
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  0cfad46
Commits on Mar 14, 2026
Commits on Mar 15, 2026
- rework of C3 SPI driver, still can cause deadlocks, stalls and crashes.
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  2d1fe69
- reformat to wled default indentation
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  42f9813
- add preliminary 3 step cadence encoding
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  9958734
- rename define
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  2ed3b7f
- adding dynamic timing, WIP
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  6a1a8ff
Commits on Mar 16, 2026
Commits on Mar 17, 2026
- add comments, todos and ifdef for RMT autochannel
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  b2fbf08
- adding per RMT bus timing, still glitchy but works...
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  2dded7f
Commits on Mar 18, 2026
- bugfix in I2S for S2 (remove test line), some refactoring
  DedeHai
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  9aaa7c4
- improve RMT interrupt
  DedeHai
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  9607705
- integrating RMT high priority ISR driver by @willmmiles
  DedeHai
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  f6b7091
- disable high priority ISR driver for C3 by default (causes crashes)
  DedeHai
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  dc048d6
Commits on Mar 20, 2026
Commits on Mar 21, 2026
- minor improvement, parallel spi still deadlocks
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  70d154d
Commits on Mar 22, 2026
Commits on Mar 23, 2026
- no deadlocks but still timeouts (issue was: have to await cmd.update)
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  2bc958f
- minor improvement, SPI timout still happens under heavy load
  DedeHai
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  c3d654f
- add comment
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  6ffae29
Commits on Mar 24, 2026
- timeouts seem fixed now, need critical section in init for it to work right
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  0287ac6
- some cleanup and removal of test functions, added comments
  DedeHai
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  b45bfa7
- add notes
  DedeHai
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  fc3612b
- add 16 channel parallel support to I2S for ESP32 and S2
  DedeHai
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  39d3218
Commits on Mar 25, 2026
- reserve mem block only if feature is enabled
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  965e68b
Commits on Mar 28, 2026
- rename high priority RMT driver to RrmtHiDriver
  DedeHai
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  eda4615
- remove leftovers from IBus and use PixelBus everywhere
  DedeHai
  committed
  8765848
- remove bus limit, increase number of segments
  DedeHai
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  c5c5671
- disable rmt memory mapping by default (except on C3)
  DedeHai
  committed
  aac8840
- Fix 16 channel I2S for ESP32
  DedeHai
  committed
  c7897bc
- allow more DMA buffers for I2S (circular list)
  DedeHai
  committed
  4c340f4
- massive speedup in I2S encoding, minor changes to RMT
  DedeHai
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  5a4a314
- bugfixes
  DedeHai
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  eb0a32e
- improvements to ESP8266 UART method: waste less ram (non working)
  DedeHai
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  5e90e22
- fixes for uart method, partially working now
  DedeHai
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  4bf195a
Commits on Mar 30, 2026
- renaming, adding optimizations in segment blending
  DedeHai
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  a0b3a59
Commits on Apr 1, 2026
- reserve pins when using placeholder bus for proper UI representation
  DedeHai
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  19513df
- remove memory estimation as it is no longer needed (UI estimate only)
  DedeHai
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  5325d44
- remove memory estimation from buses
  DedeHai
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  5dfb083
- some cleanup
  DedeHai
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  094f52a
- fix frame skip on parallel spi, remove waitcomplete
  DedeHai
  committed
  a1105ab
Commits on Apr 2, 2026
- remove the per-bus pixelbuffer, still needs some refinement
  DedeHai
  committed
  9e0698b
- fix buffer calculation for esp8266
  DedeHai
  committed
  d3d972a
- no need for global buffer on ESP8266, slows it down a little though
  DedeHai
  committed
  bce48e2
- put pixeltimings into flash, saving ~200bytes of ram on ESP8266
  DedeHai
  committed
  989c928
- fix peek / restorecolorlossy if ABL is disabled
  DedeHai
  committed
  22e8944
Commits on Apr 3, 2026
- update ESP8266 DMA method, still buggy
  DedeHai
  committed
  22461d5
- attempt at fixing first DMA byte being wrong, a bit better but still not good
  DedeHai
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  f83488d
Commits on Apr 4, 2026
- add dynamic current scaling for TM1814, color order is still wrong
  DedeHai
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  8c64a51
- fix color order handling
  DedeHai
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  b0571ad
- add signal inversion (RMT support only)
  DedeHai
  committed
  c486c40
- add inverted parameter to all ESP32 drivers, use gpio matrix to invert, WIP
  DedeHai
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  37f37af
- fix inversion also for high priority RMT driver
  DedeHai
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  c0e9df4
Commits on Apr 5, 2026
- fix indentation
  DedeHai
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  4ab69c4
- rename bustype to busdriver
  DedeHai
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  191acca
- improvements to color encoder
  DedeHai
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  3d018e2
- add preliminary 16bit support
  DedeHai
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  925834c
- add preliminary suffix support for SM16825
  DedeHai
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  35b13b4
Commits on Apr 6, 2026
- use led types from const.h
  DedeHai
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  b0d6467
- minor speed optimizations
  DedeHai
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  9709a0c
- move gamma correction to bus level, make gamma table unity if not used
  DedeHai
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  7a22cfc
- minor optimization
  DedeHai
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  54fdfab
- add proper 16bit brightness encoding
  DedeHai
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  04cb246
Commits on Apr 7, 2026
- better brightness handling path (optimization)
  DedeHai
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  a3d9727
Commits on Apr 10, 2026
- make cct buffer optional - only use if segments differ in cct
  DedeHai
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  c6239e0
Commits on Apr 11, 2026
- add initial support for special LED layouts, needs some refinement
  DedeHai
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  4048f44
- remove WS281x fast type
  DedeHai
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  280db85
Commits on Apr 15, 2026
- wait for the bus
  DedeHai
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  9007c87
Commits on Apr 17, 2026
Commits on Apr 23, 2026
- fix bit bang output, started fixing UART output, still only works after bus reset
  DedeHai
  committed
  34fff82
- bugfix: pinmatrix is somehow reset, applied a workaround
  DedeHai
  committed
  445aca2
Commits on Apr 24, 2026
- fix ESP8266 I2S clock calculation (DMABus)
  DedeHai
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  8a1c2ca
- fix edge cases, change comment
  DedeHai
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  ad26bcb
Commits on Apr 29, 2026
- fix implementation of 2-wire LED (SPI bus), still untested and needs more work
  DedeHai
  committed
  ded1789
- make use of APA102 hardware brightness scaling
  DedeHai
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  8c184c5
Commits on May 9, 2026
- Merge branch 'main' into WLEDpixelBus_experimental
  DedeHai
  committed
  406b770
Commits on May 12, 2026
- make 16-parallel output modes a compile option (tested working on ESP32 only)
  DedeHai
  committed
  89ec9de
- cleanup and refactor
  DedeHai
  committed
  22afd6e
Commits on May 13, 2026
- fix SPI output for C3, S2, S3 (untested)
  DedeHai
  committed
  0e68450
Commits on Jun 6, 2026
- Merge branch 'main' into WLEDpixelBus_experimental
  DedeHai
  committed
  19bf6af
- add parallel bit bang driver, still buggy and incomplete but basics work
  DedeHai
  committed
  94d1722
- disable interrupts for the full BB sendout period to avoid stalling/flickering
  DedeHai
  committed
  3e9263f
- fix number of digital channels in UI, better support for ESP32
  DedeHai
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  309a032
- add support for GPIOs > 31 on all ESPs
  DedeHai
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  04ecf78
- fix macros
  DedeHai
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  d581fa9
- use more IDF macros
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  33ec35f
- run BB buses befor other buses, remove magic numbers
  DedeHai
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  de83f28
- allow more BB outputs on ESP8266
  DedeHai
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  82c4738
Commits on Jun 25, 2026
- add parallel BB to ESP8266 (UI still needs updating)
  DedeHai
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  149becb
- add UI restrictions for ESP8266 parallel BB
  DedeHai
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  d2c0c08
- add todo
  DedeHai
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  25fc4e0
- fix output inversion for all bus types
  DedeHai
  committed
  eeb107d
- fix custom bus timings: make unchangeable on subsequent parallel outputs
  DedeHai
  committed
  0a8ef0e
- bugfix and indentation
  DedeHai
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  198460d
- fix alert
  DedeHai
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  94910a2
- cleanup and proper SPI assignment on C3
  DedeHai
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  d41c449
- revert test and debug
  DedeHai
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  be9d8bc
- cleanup some comments
  DedeHai
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  fa68461
- cleanup, add headers
  DedeHai
  committed
  a264a5d
- Merge branch 'main' into WLEDpixelBus_experimental
  DedeHai
  committed
  2802468
- update comment
  DedeHai
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  6443e78
- fix merge conflics
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  9f5058b
- comment out debug prints
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  b638e5d
Commits on Jun 26, 2026
- fix compile error, remove debug outputs
  DedeHai
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  80014ac
- fix include
  DedeHai
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  170ee7a
- remove debug code
  DedeHai
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  ba363f8
- comment out debug out
  DedeHai
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  cb47a8d
- Fix compile error
  DedeHai
  committed
  b61ccdc
- remove debug variables
  DedeHai
  committed
  4d44165
- ifdef cleanup, remove BB for ESP32 and S3 (still needs UI fix)
  DedeHai
  committed
  cfb2235
- more ifdef fixes, fix UI for C3 and disabled BB
  DedeHai
  committed
  0a09f46
- fix S3 build
  DedeHai
  committed
  71c7912
- revert "optimization" to ABL, remove double gamma application
  DedeHai
  committed
  b04947a
- replace static members with struct in ESP8266 BB bus
  DedeHai
  committed
  358d967
- add struct fix also to regular BB, fix UI, add (non working) gamma to ESP8266 path
  DedeHai
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  22e1632
Commits on Jun 27, 2026
- remove ESP8266 BB bus and extend BB bus to support ESP8266
  DedeHai
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  4c8cabc
- remove debug output
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  7e457c3
Commits on Jun 28, 2026
- remove timing update (not used), make static RMT arrays match hardware
  DedeHai
  committed
  23dbb18
- add multi-mem block support to RMTHI driver, clean up code, some optimization
  DedeHai
  committed
  963708b
Commits on Jun 29, 2026
- Improve I2S driver
  DedeHai
  committed
  6ac48fe
Commits on Jun 30, 2026
- port I2S improvements to LCD bus. should unify the two...
  DedeHai
  committed
  6492137
- merge I2S bus and LCD bus code, some cleanup
  DedeHai
  committed
  4a44e9e
Commits on Jul 2, 2026
- bugfix in RMT driver (IRAM not DRAM), add TODOs, cleanup
  DedeHai
  committed
  687169b
- Merge branch 'main' into WLEDpixelBus_PR
  DedeHai
  committed
  9fb18cc
- use max current for SM16825 as it always was
  DedeHai
  committed
  a531320
- undo fix, made it worse
  DedeHai
  committed
  0bcb677
- bugfix in config page - custom bus is now 39
  DedeHai
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  b34425f
- cleanup parallel SPI, still rock solid
  DedeHai
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  9e2b06c
Commits on Jul 6, 2026
- revert unnecessary changes
  DedeHai
  committed
  2afc5eb
Commits on Jul 9, 2026
- add restriction to max parallel spi LEDs, some cleanup
  DedeHai
  committed
  4d17737
- cleanup buffer definitions, cleanup
  DedeHai
  committed
  44a50a2
- remove custom bus and add custombus config for any LED type (preliminary)
  DedeHai
  committed
  8af920c
- replace magic numbers
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  committed
  a03010f
- bugfix in UI, respect inverte channels in ESP8266
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  0d87e18
Commits on Jul 10, 2026
- update comments
  DedeHai
  committed
  5e6041f
Commits on Jul 11, 2026
- add missing _inverted variable
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  committed
  80a6f54
- properly pass bus timings to UI and update when LT changes
  DedeHai
  committed
  9f1aa03
- fix cfg loading overriding special custom types
  DedeHai
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  25fae63
- fix compile issue
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  5ab790f
- remove TODO
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  1b24012
- cleanup names and variable orders
  DedeHai
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  0be219c
- fix SPI bus timing not propagating down to bus level
  DedeHai
  committed
  728f8ae
- bugfix in UI for ESP8266
  DedeHai
  committed
  b8e9b53
- add note to SPI, add some experimental code to APA012 (slightly faster)
  DedeHai
  committed
  b02dc15
- fix inverted support on ESP8266 (only non BB buses supported)
  DedeHai
  committed
  fc49dde
- use fast HW transfer in SPI output part 1
  DedeHai
  committed
  1a8d0eb
- use fast HW transfer in SPI output part 2
  DedeHai
  committed
  ed50169
- fix peek preview for APA102, rename setPixel to setPixelColor in bus
  DedeHai
  committed
  73cb2e6
Commits on Jul 12, 2026
- allow interrupts during bit bang output, some tuning, bugfixes in UI
  DedeHai
  committed
  6137549
Commits on Jul 13, 2026
- improvements to BB output and some cleanup
  DedeHai
  committed
  9b1cbee
- no need for defaults
  DedeHai
  committed
  9bc9538
- fix strip.setPixelColor() on ESP8266
  DedeHai
  committed
  0e91c37
Commits on Jul 14, 2026
- add WLED_DISABLE_GLOBAL_PIXELBUFFER, fix strip.setPixelColor()
  DedeHai
  committed
  8cf9670
Commits on Jul 15, 2026
- fix missing return value
  DedeHai
  committed
  9924142
Commits on Jul 21, 2026
- Merge branch 'main' into WLEDpixelBus_PR
  DedeHai
  committed
  3a612a0
- bugfix in the no global buffer path
  DedeHai
  committed
  e9e8f1d
- disable RMT High priority driver for V5 builds, fix bitBang for V5
  DedeHai
  committed
  8a57ab8
- V5 fixes for C3
  DedeHai
  committed
  3c1a933
Commits on Jul 23, 2026
- cleanup finalizeInit(), add BB support for new chips (still buggy), prepare for new chips
  DedeHai
  committed
  9883070
- fix BB output - after a long jurney the fix is simple
  DedeHai
  committed
  6878a05
Commits on Jul 26, 2026
Commits on Jul 27, 2026
- update todo list
  DedeHai
  committed
  e854fa5
- remove obsolete parameters from show()
  DedeHai
  committed
  700ccf2
- BB bus: retry to reduce frame tearing
  DedeHai
  committed
  a65566e
- update todo list, cleanup some comments, remove dead code
  DedeHai
  committed
  2683a1e
- fix PARLIO compile errors on ESP8266
  DedeHai
  committed
  4c95a3d
- fix PARLIO compile errors for C5 (untested)
  DedeHai
  committed
  e6ae7d3
- Merge branch 'main' into WLEDpixelBus_PR
  DedeHai
  committed
  c552cb3
- restrict custom bus UI input in parallel hardware modes, fix warning
  DedeHai
  committed
  deee159
Commits on Jul 28, 2026
- fix V4 builds
  DedeHai
  committed
  7a71296
- Fix compile issues on P4
  DedeHai
  committed
  d9ee427
- Fix PARLIO fallback: single full frame buffer
  DedeHai
  committed
  21567dc
- fix led setting custom timing being overwritte, leading to form submit error
  DedeHai
  committed
  6dbb6a7
- bugfix: do not keep restricting pins when removing a bus/button/relay
  DedeHai
  committed
  8b86786
- update todo list
  DedeHai
  committed
  1c67c4d
Commits on Jul 29, 2026
- parallelSPI bus: get GDMA channel from API instead of hardcoding
  DedeHai
  committed
  f20827e
Commits on Jul 31, 2026
- some remark cleanup
  DedeHai
  committed
  db587ec
- update todo
  DedeHai
  committed
  824960f
- update header info
  DedeHai
  committed
  4d1214c
- remove comment
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  committed
  e7aa9c7
Commits on Aug 20, 2026
- parlio fix for IDF V5.5, parlio_tx_unit_t and dma defaults changed
  DedeHai
  committed
  0b65f88
Commits on Sep 13, 2026
- remove _lastBusCache optimization: it breaks custom bus indices
  DedeHai
  committed
  52de3e6
- do not restrict SPI chaining, some slop cleanup
  DedeHai
  committed
  dc0e0c1
Commits on Sep 14, 2026
- add note
  DedeHai
  committed
  7cb4d16
- FADE
  DedeHai
  committed
  96d93a0
- remove NPB libdep again (got merged back in)
  DedeHai
  committed
  8038d71
- remove arduino bug workaround, it was fixed in V5
  DedeHai
  committed
  b3cb488
- bugfix for APA104: current level 0 means off, use level 1. update comments
  DedeHai
  committed
  69e7728
Commits on Sep 15, 2026
- fix compile issue on S2 by removing PCM bypass (it works fine without it)
  DedeHai
  committed
  a65b040
- IDF V5.5 fix for S3 LCD driver
  DedeHai
  committed
  19a3e89
- remove pre V5.5 definitions from parlio.h
  DedeHai
  committed
  9d9d2a8
Commits on Sep 17, 2026
- WIP. Major cleanup: consolidate functions, remove unused stuff, clean out parallel SPI state machine
  DedeHai
  committed
  c21fbca
- forgot to save rename
  DedeHai
  committed
  ad90cd6
Commits on Sep 25, 2026
- Merge branch 'main' into WLEDpixelBus_PR
  DedeHai
  committed
  2262e33
Commits on Oct 2, 2026
- Merge branch 'main' into WLEDpixelBus_PR
  softhack007
  authored
  8ea1f51

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