WIP puzbusv2???

9 files changed, 90 insertions, 48 deletions

diff --git a/.editorconfig b/.editorconfig
index cd37156..4de909a 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -5,7 +5,7 @@ indent_style = tab
 end_of_line = lf
 insert_final_newline = true
 
-[*.md]
+[*.{md,adoc}]
 indent_style = space
 indent_size = 2
 
diff --git a/docs/.gitignore b/docs/.gitignore
index a2f45c2..1b1c365 100644
--- a/docs/.gitignore
+++ b/docs/.gitignore
@@ -1,5 +1,6 @@
 *.pdf
 res
+*.bkp
 
 # i know this is bad
 Gemfile.lock
diff --git a/docs/design.adoc b/docs/design.adoc
index 5ebbb15..e35c495 100644
--- a/docs/design.adoc
+++ b/docs/design.adoc
@@ -203,7 +203,7 @@ image::img/system-bus.svg[]
 == Modules
 
 This section elaborates on the top-level specifications from <<sec:lv1>> with
-additional hardware specifications and software design decisions.
+software design decisions and protocol specifications.
 
 === Puzzle Module Framework
 
@@ -222,38 +222,6 @@ designed to facilitate the following:
 * Provide abstracted interfaces to allow for easy integration of the puzzle box
   as part of a larger whole (<<reqs.adoc#req:main-interface>>).
 
-[[sec:framework-state]]
-==== State
-
-All puzzle modules implement the same state machine shown in
-<<fig:puzzle-module-common-state>>. Note that the arrows indicate state
-transitions that a puzzle module may take on its own. The main controller also
-allows the game operator to manually set the current state as one of the states
-on the right half of <<fig:puzzle-module-common-state>>, which can be used to
-skip a puzzle if a player is stuck (<<reqs.adoc#req:edge-skip-puzzle>>) or
-reset a game if it is malfunctioning (<<reqs.adoc#req:edge-manual-reset>>).
-
-Puzzle modules start in the 'uninitialized' state, where they repeatedly send
-messages to the main controller (see <<sec:main-bridge>>). The state transition
-from 'uninitialized' to 'reset' is forced by the main controller upon
-initialization. States on the right half of <<fig:puzzle-module-common-state>>
-are used during gameplay.
-
-[[fig:puzzle-module-common-state]]
-.Global puzzle module state machine
-image::img/puzzle-module-common-state.svg[]
-
-The state machine described in <<fig:puzzle-module-common-state>> is referred
-to as the global state. Puzzle modules may also declare and define custom state
-variables, which is referred to as auxiliary state. These auxiliary state
-variables contain game-specific variables; e.g. the binary state of each button
-on the Neotrellis puzzle module, or the last passcode entered on the vault
-puzzle module.
-
-Separating the auxiliary state from the generic state allows the main
-controller to handle the auxiliary state as an arbitrary blob, which allows for
-future expansion without modification of the main controller software.
-
 ==== Commands
 
 The puzzle module framework describes the following commands:
@@ -277,6 +245,45 @@ this, the 'update' command was created. This command is utilized for various
 kinds of updates, including registering new puzzle modules and updating global
 state.
 
+
+[[sec:framework-state]]
+==== State
+
+All puzzle modules implement the same state machine shown in
+<<fig:puzzle-module-common-state>>. Note that the arrows indicate state
+transitions that a puzzle module may take on its own. The main controller also
+allows the game operator to manually set the current state as one of the states
+on the right half of <<fig:puzzle-module-common-state>>, which can be used to
+skip a puzzle if a player is stuck (<<reqs.adoc#req:edge-skip-puzzle>>) or
+reset a game if it is malfunctioning (<<reqs.adoc#req:edge-manual-reset>>).
+
+- Puzzle modules start in the 'uninitialized' state, during which they wait for
+  a handshake command (magic) from the main controller. Once the magic reply is
+  sent, the puzzle module transitions to the _idle_ state.
+- During the 'idle' state, the puzzle module  waits until the main controller
+  forces it into the _playing_ state.
+- While in the 'playing' state, the puzzle module is active, and may be solved
+  by the player(s). The puzzle module's game logic is responsible for checking
+  if the game is finished, upon which it will transition to the _solved_ state.
+- The 'solved' state is similar to the 'idle' state, with the exception that
+  the main controller will not re-start this puzzle module. Unless a module is
+  manually reset by the game operator, it does not return from this state.
+
+[[fig:puzzle-module-common-state]]
+.Global puzzle module state machine
+image::img/puzzle-module-common-state.svg[]
+
+The state machine described in <<fig:puzzle-module-common-state>> is referred
+to as the _global state_ of a puzzle module. Puzzle modules may also declare
+and define custom state variables, which is referred to as _auxiliary state_.
+These auxiliary state variables contain game-specific variables (e.g. the
+binary state of each button on the Neotrellis puzzle module, or the last
+passcode entered on the vault puzzle module).
+
+Separating the auxiliary state from the generic state allows the main
+controller to handle the auxiliary state as an arbitrary blob, which allows for
+future expansion without modification of the main controller software.
+
 === Main Controller
 
 This subsection defines the function and state of the main controller.
diff --git a/docs/figs.drawio b/docs/figs.drawio
index a40503b..a43862d 100644
--- a/docs/figs.drawio
+++ b/docs/figs.drawio
@@ -1,4 +1,4 @@
-<mxfile host="Electron" modified="2024-03-17T13:05:37.082Z" agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/23.1.5 Chrome/120.0.6099.109 Electron/28.1.0 Safari/537.36" etag="7STPuaY27yiGeP_RMlUo" version="23.1.5" type="device" pages="12">
+<mxfile host="Electron" modified="2024-06-01T11:52:27.222Z" agent="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/24.4.8 Chrome/124.0.6367.207 Electron/30.0.6 Safari/537.36" etag="qt8lwteWkdC3DiowClIP" version="24.4.8" type="device" pages="12">
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       <root>
@@ -437,27 +437,27 @@
     </mxGraphModel>
   </diagram>
   <diagram id="tQJt-i1klPodeKevl6yF" name="puzzle-module-common-state">
-    <mxGraphModel dx="1422" dy="822" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="827" pageHeight="1169" math="0" shadow="0">
+    <mxGraphModel dx="673" dy="1582" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="827" pageHeight="1169" math="0" shadow="0">
       <root>
         <mxCell id="0" />
         <mxCell id="1" parent="0" />
-        <mxCell id="5xofdATqJuVrBNkdsEzn-2" value="Uninitialized" style="ellipse;whiteSpace=wrap;html=1;fontFamily=Arial;" parent="1" vertex="1">
-          <mxGeometry width="80" height="80" as="geometry" />
-        </mxCell>
-        <mxCell id="5xofdATqJuVrBNkdsEzn-6" style="rounded=0;orthogonalLoop=1;jettySize=auto;html=1;fontFamily=Arial;" parent="1" source="5xofdATqJuVrBNkdsEzn-3" target="5xofdATqJuVrBNkdsEzn-4" edge="1">
+        <mxCell id="TXo2J6VZZM4ndMLuZKAH-1" style="rounded=0;orthogonalLoop=1;jettySize=auto;html=1;" edge="1" parent="1" source="5xofdATqJuVrBNkdsEzn-2" target="5xofdATqJuVrBNkdsEzn-3">
           <mxGeometry relative="1" as="geometry" />
         </mxCell>
-        <mxCell id="5xofdATqJuVrBNkdsEzn-3" value="Reset" style="ellipse;whiteSpace=wrap;html=1;fontFamily=Arial;" parent="1" vertex="1">
-          <mxGeometry x="100" width="60" height="60" as="geometry" />
+        <mxCell id="5xofdATqJuVrBNkdsEzn-2" value="uninitialized" style="ellipse;whiteSpace=wrap;html=1;fontFamily=Arial;" parent="1" vertex="1">
+          <mxGeometry y="-10" width="80" height="80" as="geometry" />
+        </mxCell>
+        <mxCell id="5xofdATqJuVrBNkdsEzn-3" value="idle" style="ellipse;whiteSpace=wrap;html=1;fontFamily=Arial;" parent="1" vertex="1">
+          <mxGeometry x="100" y="-10" width="80" height="80" as="geometry" />
         </mxCell>
-        <mxCell id="5xofdATqJuVrBNkdsEzn-7" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;fontFamily=Arial;" parent="1" source="5xofdATqJuVrBNkdsEzn-4" target="5xofdATqJuVrBNkdsEzn-5" edge="1">
+        <mxCell id="5xofdATqJuVrBNkdsEzn-7" style="rounded=0;orthogonalLoop=1;jettySize=auto;html=1;fontFamily=Arial;" parent="1" source="5xofdATqJuVrBNkdsEzn-4" target="5xofdATqJuVrBNkdsEzn-5" edge="1">
           <mxGeometry relative="1" as="geometry" />
         </mxCell>
-        <mxCell id="5xofdATqJuVrBNkdsEzn-4" value="Playing" style="ellipse;whiteSpace=wrap;html=1;fontFamily=Arial;" parent="1" vertex="1">
-          <mxGeometry x="100" y="80" width="60" height="60" as="geometry" />
+        <mxCell id="5xofdATqJuVrBNkdsEzn-4" value="playing" style="ellipse;whiteSpace=wrap;html=1;fontFamily=Arial;" parent="1" vertex="1">
+          <mxGeometry x="200" y="-10" width="80" height="80" as="geometry" />
         </mxCell>
-        <mxCell id="5xofdATqJuVrBNkdsEzn-5" value="Solved" style="ellipse;whiteSpace=wrap;html=1;fontFamily=Arial;" parent="1" vertex="1">
-          <mxGeometry x="100" y="160" width="60" height="60" as="geometry" />
+        <mxCell id="5xofdATqJuVrBNkdsEzn-5" value="solved" style="ellipse;whiteSpace=wrap;html=1;fontFamily=Arial;" parent="1" vertex="1">
+          <mxGeometry x="300" y="-10" width="80" height="80" as="geometry" />
         </mxCell>
       </root>
     </mxGraphModel>
diff --git a/docs/img/busmaster-sequence.puml b/docs/img/busmaster-sequence.puml
new file mode 100644
index 0000000..362227a
--- /dev/null
+++ b/docs/img/busmaster-sequence.puml
@@ -0,0 +1,22 @@
+@startuml
+!include theme.ipuml
+
+participant "Main controller\n(0x00)" as main
+participant "Vault PM\n(0x08)" as a
+participant "NeoTrellis PM\n(0x09)" as b
+participant "NeoTrellis unit 1\n(0x2e)" as neo1
+participant "NeoTrellis unit 2\n(0x2f)" as neo2
+
+activate main
+main -> a --++: SEX?
+a -> main --++: SEX
+|||
+main -> b --++: SEX?
+b -> neo1: I<sup>2</sup>C write
+neo1 -> b: I<sup>2</sup>C read
+b -> neo2: I<sup>2</sup>C write
+neo2 -> b: I<sup>2</sup>C read
+b -> main --++: SEX
+|||
+
+@enduml
diff --git a/docs/img/busmaster-sequence.svg b/docs/img/busmaster-sequence.svg
new file mode 100644
index 0000000..22d9161
--- /dev/null
+++ b/docs/img/busmaster-sequence.svg
@@ -0,0 +1 @@
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diff --git a/docs/img/puzzle-module-common-state.svg b/docs/img/puzzle-module-common-state.svg
index b5688ef..a3ac4bb 100644
--- a/docs/img/puzzle-module-common-state.svg
+++ b/docs/img/puzzle-module-common-state.svg
@@ -1,3 +1,3 @@
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\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="382px" height="81px" viewBox="-0.5 -0.5 382 81"><defs/><g><g><path d="M 80 40 L 93.63 40" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 98.88 40 L 91.88 43.5 L 93.63 40 L 91.88 36.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/></g><g><ellipse cx="40" cy="40" rx="40" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/></g><g><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 40px; margin-left: 1px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Arial; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">uninitialized</div></div></div></foreignObject><text x="40" y="44" fill="rgb(0, 0, 0)" font-family="Arial" font-size="12px" text-anchor="middle">uninitialized</text></switch></g></g><g><ellipse cx="140" cy="40" rx="40" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/></g><g><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 40px; margin-left: 101px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Arial; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">idle</div></div></div></foreignObject><text x="140" y="44" fill="rgb(0, 0, 0)" font-family="Arial" font-size="12px" text-anchor="middle">idle</text></switch></g></g><g><path d="M 280 40 L 293.63 40" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 298.88 40 L 291.88 43.5 L 293.63 40 L 291.88 36.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/></g><g><ellipse cx="240" cy="40" rx="40" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/></g><g><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 40px; margin-left: 201px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Arial; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">playing</div></div></div></foreignObject><text x="240" y="44" fill="rgb(0, 0, 0)" font-family="Arial" font-size="12px" text-anchor="middle">playing</text></switch></g></g><g><ellipse cx="340" cy="40" rx="40" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/></g><g><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 40px; margin-left: 301px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Arial; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">solved</div></div></div></foreignObject><text x="340" y="44" fill="rgb(0, 0, 0)" font-family="Arial" font-size="12px" text-anchor="middle">solved</text></switch></g></g></g></svg>
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diff --git a/docs/img/theme.ipuml b/docs/img/theme.ipuml
new file mode 100644
index 0000000..23e0ce5
--- /dev/null
+++ b/docs/img/theme.ipuml
@@ -0,0 +1,6 @@
+!theme plain
+skinparam DefaultFontSize 14
+skinparam DefaultFontName Inter
+skinparam RoundCorner 0
+skinparam maxMessageSize 200
+hide footbox
diff --git a/docs/makefile b/docs/makefile
index f175830..370d2db 100644
--- a/docs/makefile
+++ b/docs/makefile
@@ -19,3 +19,8 @@ ASCIIDOCTOR_ARGS += --backend pdf
 %.pdf: %.adoc $(PDFDEPS)
 	bundle exec asciidoctor $(ASCIIDOCTOR_ARGS) $<
 
+%.svg: %.puml img/theme.ipuml
+	plantuml -tsvg $<
+
+
+