RK3566 EBC Reverse-Engineering - Revision history

Dsimic: /* Waveform */ Clarified a bit

2024-09-19T14:39:08Z

Waveform: Clarified a bit

← Older revision		Revision as of 14:39, 19 September 2024
Line 46:		Line 46:
	* [https://web.archive.org/web/20220516211757/https://www.waveshare.net/w/upload/archive/c/c4/20190611032540!E-paper-mode-declaration.pdf 20190611032540!E-paper-mode-declaration.pdf]		* [https://web.archive.org/web/20220516211757/https://www.waveshare.net/w/upload/archive/c/c4/20190611032540!E-paper-mode-declaration.pdf 20190611032540!E-paper-mode-declaration.pdf]

	The latter file includes some additional information about the specification itself.		The latter file includes some additional information about the specification itself. Think of it as containing more metadata, while the actual data is the same.

	=== Utilities ===		=== Utilities ===

2024-09-19T13:47:32Z

Waveform: Improved the wording a bit and rescued one of the links

← Older revision		Revision as of 13:47, 19 September 2024
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	==== Waveform ====		==== Waveform ====

	The format of the waveform file is documented ~~here~~:		The format of the waveform file is documented in the following PDF files:

	https://www.waveshare.net/w/upload/c/c4/E-paper-mode-declaration.pdf		* [https://www.waveshare.net/w/upload/c/c4/E-paper-mode-declaration.pdf E-paper-mode-declaration.pdf]
			* [https://web.archive.org/web/20220516211757/https://www.waveshare.net/w/upload/archive/c/c4/20190611032540!E-paper-mode-declaration.pdf 20190611032540!E-paper-mode-declaration.pdf]

	~~https://www~~.~~waveshare.net/w/upload/archive/c/c4/20190611032540!E-paper-mode-declaration.pdf~~		The latter file includes some additional information about the specification itself.

	=== Utilities ===		=== Utilities ===

2023-04-02T21:43:11Z

fixes

2022-01-08T05:02:15Z

Documentation

← Older revision		Revision as of 05:02, 8 January 2022
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	https://www.waveshare.net/w/upload/archive/c/c4/20190611032540!E-paper-mode-declaration.pdf		https://www.waveshare.net/w/upload/archive/c/c4/20190611032540!E-paper-mode-declaration.pdf

			== Utilities ==

			The [https://github.com/fread-ink/inkwave <tt>inkwave</tt>] program is designed to parse waveform files. Currently it cannot fully handle the waveform files shipped with the PineNote. Adding support for this to the tool would be helpful.

	== Assembly Syntax and Semantics ==		== Assembly Syntax and Semantics ==

2022-01-08T04:51:26Z

Datasheets: Add references to EBC TCON and waveform file formats

← Older revision		Revision as of 04:51, 8 January 2022
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	== Datasheets ==		== Datasheets ==

			=== EBC ===

			The EBC TCON is documented in part 2 of the RK356x TRM.

	=== TI TPS65185x ===		=== TI TPS65185x ===
Line 34:		Line 38:

	https://www.ti.com/lit/ds/symlink/tps65185.pdf		https://www.ti.com/lit/ds/symlink/tps65185.pdf

			=== Waveform ===

			The format of the waveform file is documented here:

			https://www.waveshare.net/w/upload/c/c4/E-paper-mode-declaration.pdf

			https://www.waveshare.net/w/upload/archive/c/c4/20190611032540!E-paper-mode-declaration.pdf

	== Assembly Syntax and Semantics ==		== Assembly Syntax and Semantics ==

2022-01-08T04:48:34Z

In-Development Driver: Update info about mainline driver

← Older revision		Revision as of 04:48, 8 January 2022
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	== In-Development Driver ==		== In-Development Driver ==

	[https://~~gitlab~~.com/~~pine64-org/quartz-bsp~~/linux~~-next/-~~/~~tree~~/rk356x-ebc-dev rk356x-ebc-dev] is the branch ~~on the pine64 linux-next repository~~ used for developing an upstreamable driver based on mainline kernel sources.		[https://github.com/smaeul/linux/commits/rk356x-ebc-dev rk356x-ebc-dev] is the branch used for developing an upstreamable DRM driver based on mainline kernel sources. The driver currently functions well enough to get a virtual console and Xorg running, but it does not support features like multiple waveforms.

	= Documentation =		= Documentation =

2021-09-27T00:41:56Z

remove typo

2021-09-27T00:40:56Z

Add links to reversing efforts

@@ Line 11: / Line 11: @@
 The files of interest are <code>ebc_dev_v8.S</code>, which implements a DRM (Direct Rendering Manager) driver for the eInk panel, and the waveform files in the <code>epdlut</code> subdirectory.
-There's also a completely open-source simple driver for u-boot: [https://github.com/JeffyCN/rockchip_mirrors/tree/u-boot/drivers/video/rk_eink drivers/video/rk_eink at JeffyCN/rockchip_mirrors]
+There's also a simple driver for u-boot: [https://github.com/JeffyCN/rockchip_mirrors/tree/u-boot/drivers/video/rk_eink drivers/video/rk_eink at JeffyCN/rockchip_mirrors]
 == In-Development Driver ==
@@ Line 147: / Line 155: @@
 = Reverse-Engineered Stuff =
 == Structs ==
@@ Line 154: / Line 164: @@
 <!-- I don't know why mediawiki scuffs the formatting here -->
-<source lang="c">
+See https://gitlab.com/smaeul/ebc-dev/-/blob/main/auto_image.h#L124, which is based on [https://gitlab.com/pine64-org/quartz-bsp/linux-next/-/commits/2de5fb11a888c37f366642544e5a53ec2faae32d the v1.04 BSP Linux driver].
 === ebc ===
-<source lang="c">
+See https://gitlab.com/smaeul/ebc-dev/-/blob/main/auto_image.h#L200, which is based on [https://gitlab.com/pine64-org/quartz-bsp/linux-next/-/commits/2de5fb11a888c37f366642544e5a53ec2faae32d the v1.04 BSP Linux driver].
 === rkf_waveform ===
 <source lang="c">

2021-08-16T17:21:04Z

rkf_waveform

2021-08-16T17:20:32Z

Structs: Add rk_waveform struct

@@ Line 216: / Line 216: @@
      struct ebc_info* info;
 };
 </source>