ASoC: dapm-graph: set fill colour of turned on nodes

Some tools like KGraphViewer interpret the "ON" nodes not having an
explicitly set fill colour as them being entirely black, which obscures
the t

ASoC: dapm-graph: set fill colour of turned on nodes

Some tools like KGraphViewer interpret the "ON" nodes not having an
explicitly set fill colour as them being entirely black, which obscures
the text on them and looks funny. In fact, I thought they were off for
the longest time. Comparing to the output of the `dot` tool, I assume
they are supposed to be white.

Instead of speclawyering over who's in the wrong and must immediately
atone for their wickedness at the altar of RFC2119, just be explicit
about it, set the fillcolor to white, and nobody gets confused.

Signed-off-by: Nicolas Frattaroli <[email protected]>
Tested-by: Luca Ceresoli <[email protected]>
Reviewed-by: Luca Ceresoli <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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ASoC: dapm-graph: show path name for non-static routes

Many routes are just static, not modifiable at runtime. Show the route name
for all the other routes as an edge label in the generated graph.

ASoC: dapm-graph: show path name for non-static routes

Many routes are just static, not modifiable at runtime. Show the route name
for all the other routes as an edge label in the generated graph.

Signed-off-by: Luca Ceresoli <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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ASoC: dapm-graph: visualize component On/Off bias level

Read the bias_level debugfs files (ignored so far) and visualize the On/Off
state of each component using different graphic attributes in the

ASoC: dapm-graph: visualize component On/Off bias level

Read the bias_level debugfs files (ignored so far) and visualize the On/Off
state of each component using different graphic attributes in the generated
graph.

Signed-off-by: Luca Ceresoli <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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ASoC: dapm-graph: remove the "ROOT" cluster

Widgets not belonging to any component are currently represented inside a
cluster labeled "ROOT". This is not a correct representation of the actual
struc

ASoC: dapm-graph: remove the "ROOT" cluster

Widgets not belonging to any component are currently represented inside a
cluster labeled "ROOT". This is not a correct representation of the actual
structure, as these widgets are not necessarily related to each other as
the ones inside actual components are.

Improve the graphical representation by not adding a cluster around these
widgets. Now a dot cluster represents a card component faithfully. This
will be particularly important with the upcoming improvements which will
visualize the component bias_level.

Signed-off-by: Luca Ceresoli <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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ASoC: dapm-graph: new tool to visualize DAPM state

Add a tool to generate a picture of the current DAPM state for a sound
card.

dapm-graph is inspired by vizdapm which used to be published on a Wol

ASoC: dapm-graph: new tool to visualize DAPM state

Add a tool to generate a picture of the current DAPM state for a sound
card.

dapm-graph is inspired by vizdapm which used to be published on a Wolfson
Micro git repository now disappeared, and has a few forks around:

https://github.com/mihais/asoc-tools
https://github.com/alexandrebelloni/asoc-tools

dapm-graph is a full reimplementation with several improvements while still
being a self-contained shell script:

Improvements to rendered output:
- shows the entire card, not one component hierarchy only
- each component is rendered in a separate box
- shows widget on/off status based on widget information alone (the
original vizdapm propagates the "on" green colour to the first input
widget)
- use bold line and gray background and not only green/red line to show
on/off status (for the color blind)

Improvements for embedded system developers:
- remote mode: get state of remote device (possibly with minimal rootfs)
via SSH, but parsing locally for faster operation
- compatible with BusyBox shell, not only bash

Usability improvements:
- flexible command line (uses getopts for parsing)
- detailed help text
- flag to enable detailed debug logging
- graphviz output format detected from file extension, not hard coded
- a self-contained shell script

Usage is designed to be simple:

dapm-grpah -c CARD - get state from debugfs for CARD
dapm-grpah -c CARD -r REMOTE_TARGET - same, but remotely via SSH
dapm-grpah -d STATE_DIR - from a local copy of the debugfs
tree for a card

Signed-off-by: Luca Ceresoli <[email protected]>
Reviewed-by: Alexandre Belloni <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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