beta with artnet protocol
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149
RpiLedBars/.clang-format
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149
RpiLedBars/.clang-format
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@ -0,0 +1,149 @@
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---
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Language: Cpp
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# BasedOnStyle: LLVM
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AccessModifierOffset: -2
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AlignAfterOpenBracket: Align
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||||
AlignConsecutiveMacros: false
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AlignConsecutiveAssignments: false
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||||
AlignConsecutiveBitFields: false
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||||
AlignConsecutiveDeclarations: false
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||||
AlignEscapedNewlines: Right
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||||
AlignOperands: Align
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AlignTrailingComments: true
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||||
AllowAllArgumentsOnNextLine: true
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||||
AllowAllConstructorInitializersOnNextLine: true
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||||
AllowAllParametersOfDeclarationOnNextLine: true
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||||
AllowShortEnumsOnASingleLine: true
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||||
AllowShortBlocksOnASingleLine: Never
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||||
AllowShortCaseLabelsOnASingleLine: false
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||||
AllowShortFunctionsOnASingleLine: All
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||||
AllowShortLambdasOnASingleLine: All
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||||
AllowShortIfStatementsOnASingleLine: Never
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||||
AllowShortLoopsOnASingleLine: false
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||||
AlwaysBreakAfterDefinitionReturnType: None
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AlwaysBreakAfterReturnType: None
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||||
AlwaysBreakBeforeMultilineStrings: false
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||||
AlwaysBreakTemplateDeclarations: MultiLine
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||||
BinPackArguments: true
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BinPackParameters: true
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||||
BraceWrapping:
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AfterCaseLabel: false
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||||
AfterClass: false
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AfterControlStatement: Never
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||||
AfterEnum: false
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AfterFunction: false
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AfterNamespace: false
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AfterObjCDeclaration: false
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AfterStruct: false
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AfterUnion: false
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AfterExternBlock: false
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BeforeCatch: false
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BeforeElse: false
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BeforeLambdaBody: false
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BeforeWhile: false
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IndentBraces: false
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||||
SplitEmptyFunction: true
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||||
SplitEmptyRecord: true
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||||
SplitEmptyNamespace: true
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||||
BreakBeforeBinaryOperators: None
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||||
BreakBeforeBraces: Attach
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||||
BreakBeforeInheritanceComma: false
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||||
BreakInheritanceList: BeforeColon
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BreakBeforeTernaryOperators: true
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||||
BreakConstructorInitializersBeforeComma: false
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BreakConstructorInitializers: BeforeColon
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||||
BreakAfterJavaFieldAnnotations: false
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||||
BreakStringLiterals: true
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||||
ColumnLimit: 100
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CommentPragmas: '^ IWYU pragma:'
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||||
CompactNamespaces: false
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||||
ConstructorInitializerAllOnOneLineOrOnePerLine: false
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||||
ConstructorInitializerIndentWidth: 4
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ContinuationIndentWidth: 4
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||||
Cpp11BracedListStyle: true
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||||
DeriveLineEnding: true
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||||
DerivePointerAlignment: false
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DisableFormat: false
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ExperimentalAutoDetectBinPacking: false
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FixNamespaceComments: true
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ForEachMacros:
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- foreach
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- Q_FOREACH
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- BOOST_FOREACH
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IncludeBlocks: Preserve
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IncludeCategories:
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- Regex: '^"(llvm|llvm-c|clang|clang-c)/'
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Priority: 2
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||||
SortPriority: 0
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- Regex: '^(<|"(gtest|gmock|isl|json)/)'
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Priority: 3
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||||
SortPriority: 0
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- Regex: '.*'
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Priority: 1
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SortPriority: 0
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IncludeIsMainRegex: '(Test)?$'
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IncludeIsMainSourceRegex: ''
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IndentCaseLabels: false
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||||
IndentCaseBlocks: false
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||||
IndentGotoLabels: true
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IndentPPDirectives: None
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||||
IndentExternBlock: AfterExternBlock
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||||
IndentWidth: 2
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IndentWrappedFunctionNames: false
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InsertTrailingCommas: None
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JavaScriptQuotes: Leave
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JavaScriptWrapImports: true
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KeepEmptyLinesAtTheStartOfBlocks: true
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MacroBlockBegin: ''
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MacroBlockEnd: ''
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MaxEmptyLinesToKeep: 1
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NamespaceIndentation: None
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ObjCBinPackProtocolList: Auto
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ObjCBlockIndentWidth: 2
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ObjCBreakBeforeNestedBlockParam: true
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ObjCSpaceAfterProperty: false
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ObjCSpaceBeforeProtocolList: true
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PenaltyBreakAssignment: 2
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PenaltyBreakBeforeFirstCallParameter: 19
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PenaltyBreakComment: 300
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PenaltyBreakFirstLessLess: 120
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PenaltyBreakString: 1000
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PenaltyBreakTemplateDeclaration: 10
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PenaltyExcessCharacter: 1000000
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PenaltyReturnTypeOnItsOwnLine: 60
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PointerAlignment: Right
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ReflowComments: true
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SortIncludes: true
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SortUsingDeclarations: true
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SpaceAfterCStyleCast: false
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SpaceAfterLogicalNot: false
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SpaceAfterTemplateKeyword: true
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SpaceBeforeAssignmentOperators: true
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SpaceBeforeCpp11BracedList: false
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SpaceBeforeCtorInitializerColon: true
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SpaceBeforeInheritanceColon: true
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SpaceBeforeParens: ControlStatements
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SpaceBeforeRangeBasedForLoopColon: true
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SpaceInEmptyBlock: false
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SpaceInEmptyParentheses: false
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SpacesBeforeTrailingComments: 1
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SpacesInAngles: false
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SpacesInConditionalStatement: false
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SpacesInContainerLiterals: true
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SpacesInCStyleCastParentheses: false
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SpacesInParentheses: false
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SpacesInSquareBrackets: false
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SpaceBeforeSquareBrackets: false
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Standard: Latest
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StatementMacros:
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- Q_UNUSED
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- QT_REQUIRE_VERSION
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TabWidth: 8
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UseCRLF: false
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UseTab: Never
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WhitespaceSensitiveMacros:
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- STRINGIZE
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- PP_STRINGIZE
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- BOOST_PP_STRINGIZE
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...
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2
RpiLedBars/.gitignore
vendored
Normal file
2
RpiLedBars/.gitignore
vendored
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@ -0,0 +1,2 @@
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bin
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obj
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31
RpiLedBars/.vscode/launch.json
vendored
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31
RpiLedBars/.vscode/launch.json
vendored
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@ -0,0 +1,31 @@
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{
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// Use IntelliSense to learn about possible attributes.
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// Hover to view descriptions of existing attributes.
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// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
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"version": "0.2.0",
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"configurations": [
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{
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"name": "(gdb) Launch",
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"type": "cppdbg",
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"request": "launch",
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"program": "${workspaceFolder}/bin/pixled",
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"args": [
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"-n", "5",
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// "-t"
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],
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"stopAtEntry": false,
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"cwd": "${workspaceFolder}",
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"environment": [],
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"externalConsole": false,
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"MIMode": "gdb",
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"setupCommands": [
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{
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"description": "Enable pretty-printing for gdb",
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"text": "-enable-pretty-printing",
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"ignoreFailures": true
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}
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],
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"miDebuggerPath": "${workspaceFolder}/sgdb.sh"
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}
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]
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}
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@ -2,7 +2,7 @@
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"version": "2.0.0",
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"tasks": [
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{
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"type": "cppbuild",
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"type": "shell",
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"label": "Build project",
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"command": "make",
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"options": {
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@ -15,6 +15,10 @@
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"kind": "build",
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"isDefault": true
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},
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"presentation": {
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"reveal": "always",
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"panel": "new"
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},
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"detail": "compiler: /usr/bin/gcc"
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},
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{
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@ -1,5 +1,5 @@
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CC=gcc
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CFLAGS=-Wall -g -DDEBUG
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CFLAGS=-Wall -g #-DDEBUG
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LDFLAGS=#-lpthread
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SRCDIR=src
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OBJDIR=obj
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@ -8,7 +8,7 @@ SRC=$(notdir $(wildcard $(SRCDIR)/*.c))
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OBJ=$(SRC:.c=.o)
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BIN=pixled
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all: $(addprefix $(BINDIR)/, $(BIN))
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all: clean $(addprefix $(BINDIR)/, $(BIN))
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$(OBJDIR)/%.o: $(SRCDIR)/%.c
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if [ ! -d $(OBJDIR) ]; then mkdir "$(OBJDIR)"; fi
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@ -20,4 +20,5 @@ $(BINDIR)/$(BIN) : $(addprefix $(OBJDIR)/, $(OBJ))
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clean:
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rm -rf $(BINDIR)/* $(OBJDIR)/*
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rmdir $(BINDIR) $(OBJDIR)
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if [ -d $(OBJDIR) ]; then rmdir "$(OBJDIR)"; fi
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if [ -d "$(BINDIR)" ]; then rmdir "$(BINDIR)"; fi
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3
RpiLedBars/sgdb.sh
Executable file
3
RpiLedBars/sgdb.sh
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#! /bin/bash
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sudo /usr/bin/gdb "$@"
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@ -16,7 +16,7 @@
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//
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// Location of peripheral registers in physical memory
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#define PHYS_REG_BASE PI_01_REG_BASE
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#define PHYS_REG_BASE PI_23_REG_BASE
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#define PI_01_REG_BASE 0x20000000 // Pi Zero or 1
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#define PI_23_REG_BASE 0x3F000000 // Pi 2 or 3
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#define PI_4_REG_BASE 0xFE000000 // Pi 4
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@ -30,15 +30,18 @@
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// v0.11 JPB 29/9/20 Added enable_dma before transfer (in case still active)
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// Corrected DMA nsamp value (was byte count)
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#include <stdio.h>
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#include <signal.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <ctype.h>
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#include "rpi_dma_utils.h"
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#include "rpi_smi_defs.h"
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#include <arpa/inet.h>
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#include <ctype.h>
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#include <netinet/in.h>
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#include <signal.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <unistd.h>
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#if PHYS_REG_BASE == PI_4_REG_BASE // Timings for RPi v4 (1.5 GHz)
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#define SMI_TIMING 10, 15, 30, 15 // 400 ns cycle time
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@ -92,11 +95,11 @@ volatile SMI_DCD_REG *smi_dcd;
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#define TX_BUFF_SIZE(n) (TX_BUFF_LEN(n) * sizeof(TXDATA_T))
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#define VC_MEM_SIZE (PAGE_SIZE + TX_BUFF_SIZE(CHAN_MAXLEDS))
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const char artnetId[] = "Art-Net";
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// RGB values for test mode (1 value for each of 16 channels)
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int on_rgbs[16] = {0xff0000, 0x00ff00, 0x0000ff, 0xffffff,
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0xff4040, 0x40ff40, 0x4040ff, 0x404040,
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0xff0000, 0x00ff00, 0x0000ff, 0xffffff,
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0xff4040, 0x40ff40, 0x4040ff, 0x404040};
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int on_rgbs[16] = {0xff0000, 0x00ff00, 0x0000ff, 0xffffff, 0xff4040, 0x40ff40, 0x4040ff, 0x404040,
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0xff0000, 0x00ff00, 0x0000ff, 0xffffff, 0xff4040, 0x40ff40, 0x4040ff, 0x404040};
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int off_rgbs[16];
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#if TX_TEST
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@ -109,6 +112,7 @@ TXDATA_T tx_buffer[TX_BUFF_LEN(CHAN_MAXLEDS)]; // Tx buffer for assembling data
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int testmode, chan_ledcount = 1; // Command-line parameters
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int rgb_data[CHAN_MAXLEDS][LED_NCHANS]; // RGB data
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int chan_num; // Current channel for data I/P
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int udpSocket;
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void rgb_txdata(int *rgbs, TXDATA_T *txd);
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int str_rgb(char *s, int rgbs[][LED_NCHANS], int chan);
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@ -121,16 +125,15 @@ void init_smi(int width, int ns, int setup, int hold, int strobe);
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void setup_smi_dma(MEM_MAP *mp, int nsamp);
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void start_smi(MEM_MAP *mp);
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int main(int argc, char *argv[])
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{
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int main(int argc, char *argv[]) {
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// setup
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int args = 0, n, oset = 0;
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memset(off_rgbs, 0, sizeof(int) * 16);
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while (argc > ++args) // Process command-line args
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{
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if (argv[args][0] == '-')
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{
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switch (toupper(argv[args][1]))
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{
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if (argv[args][0] == '-') {
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switch (toupper(argv[args][1])) {
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case 'N': // -N: number of LEDs per channel
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if (args >= argc - 1)
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fprintf(stderr, "Error: no numeric value\n");
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@ -143,15 +146,12 @@ int main(int argc, char *argv[])
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default: // Otherwise error
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printf("Unrecognised option '%c'\n", argv[args][1]);
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printf("Options:\n"
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" -n num number of LEDs per channel\n"\
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" -t Test mode (flash LEDs)\n"\
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);
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" -n num number of LEDs per channel\n"
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" -t Test mode (flash LEDs)\n");
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return (1);
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}
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}
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else if (chan_num<LED_NCHANS && hexdig(argv[args][0])>=0 &&
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(n=str_rgb(argv[args], rgb_data, chan_num))>0)
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{
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} else if (chan_num < LED_NCHANS && hexdig(argv[args][0]) >= 0 &&
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(n = str_rgb(argv[args], rgb_data, chan_num)) > 0) {
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chan_ledcount = n > chan_ledcount ? n : chan_ledcount;
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chan_num++;
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}
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@ -160,34 +160,42 @@ int main(int argc, char *argv[])
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map_devices();
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init_smi(LED_NCHANS > 8 ? SMI_16_BITS : SMI_8_BITS, SMI_TIMING);
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map_uncached_mem(&vc_mem, VC_MEM_SIZE);
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#if TX_TEST
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oset = oset;
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setup_smi_dma(&vc_mem, sizeof(tx_test_data)/sizeof(TXDATA_T));
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#if LED_NCHANS <= 8
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swap_bytes(tx_test_data, sizeof(tx_test_data));
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#endif
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memcpy(txdata, tx_test_data, sizeof(tx_test_data));
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start_smi(&vc_mem);
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usleep(10);
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while (dma_active(DMA_CHAN))
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usleep(10);
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#else
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setup_smi_dma(&vc_mem, TX_BUFF_LEN(chan_ledcount));
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printf("%s %u LED%s per channel, %u channels\n", testmode ? "Testing" : "Setting",
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chan_ledcount, chan_ledcount==1 ? "" : "s", LED_NCHANS);
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if (testmode)
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{
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while (1)
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{
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setup_smi_dma(&vc_mem, TX_BUFF_LEN(chan_ledcount));
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printf("%s %u LED%s per channel, %u channels\n", testmode ? "Testing" : "Setting", chan_ledcount,
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chan_ledcount == 1 ? "" : "s", LED_NCHANS);
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int nBytes;
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char buffer[1024];
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struct sockaddr_in serverAddr;
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struct sockaddr_storage serverStorage;
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socklen_t addr_size;
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/*Create UDP socket*/
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udpSocket = socket(PF_INET, SOCK_DGRAM, 0);
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/*Configure settings in address struct*/
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serverAddr.sin_family = AF_INET;
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serverAddr.sin_port = htons(0x1936);
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serverAddr.sin_addr.s_addr = inet_addr("0.0.0.0");
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memset(serverAddr.sin_zero, '\0', sizeof serverAddr.sin_zero);
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/*Bind socket with address struct*/
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bind(udpSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr));
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/*Initialize size variable to be used later on*/
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addr_size = sizeof serverStorage;
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memcpy(txdata, tx_buffer, TX_BUFF_SIZE(chan_ledcount));
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start_smi(&vc_mem);
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// loops
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if (testmode) {
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while (1) {
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if (chan_ledcount < 2)
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rgb_txdata(oset & 1 ? off_rgbs : on_rgbs, tx_buffer);
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else
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{
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for (n=0; n<chan_ledcount; n++)
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{
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rgb_txdata(n==oset%chan_ledcount ? on_rgbs : off_rgbs,
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&tx_buffer[LED_TX_OSET(n)]);
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else {
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for (n = 0; n < chan_ledcount; n++) {
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rgb_txdata(n == oset % chan_ledcount ? on_rgbs : off_rgbs, &tx_buffer[LED_TX_OSET(n)]);
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}
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}
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oset++;
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@ -198,35 +206,53 @@ int main(int argc, char *argv[])
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start_smi(&vc_mem);
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usleep(CHASE_MSEC * 1000);
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}
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} else {
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while (1) {
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nBytes = recvfrom(udpSocket, buffer, 1024, 0, (struct sockaddr *)&serverStorage, &addr_size);
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if (nBytes <= 530 && nBytes > 0) {
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if (memcmp(buffer, artnetId, sizeof(artnetId)) == 0) {
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uint16_t opcode = buffer[8] | (buffer[9] << 8);
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if (opcode == 0x5000) {
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// uint8_t sequence = buffer[12];
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// uint16_t incomingUniverse = buffer[14] | (buffer[15] << 8);
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uint16_t dmxDataLength = buffer[17] | (buffer[16] << 8);
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char *dmxData = buffer + 18;
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uint16_t maxBound =
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(dmxDataLength / 3) < chan_ledcount ? (dmxDataLength / 3) : chan_ledcount;
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for (size_t i = 0; i < maxBound; ++i) {
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for (size_t j = 0; j < LED_NCHANS; ++j) {
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char *rgb = dmxData + (i * 3);
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rgb_data[i][j] = (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
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}
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else
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{
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for (n=0; n<chan_ledcount; n++)
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rgb_txdata(rgb_data[n], &tx_buffer[LED_TX_OSET(n)]);
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rgb_txdata(rgb_data[i], &tx_buffer[LED_TX_OSET(i)]);
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}
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#if LED_NCHANS <= 8
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swap_bytes(tx_buffer, TX_BUFF_SIZE(chan_ledcount));
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#endif
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memcpy(txdata, tx_buffer, TX_BUFF_SIZE(chan_ledcount));
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enable_dma(DMA_CHAN);
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// enable_dma(DMA_CHAN);
|
||||
start_smi(&vc_mem);
|
||||
usleep(10);
|
||||
while (dma_active(DMA_CHAN))
|
||||
usleep(10);
|
||||
// usleep(10);
|
||||
// while (dma_active(DMA_CHAN))
|
||||
// usleep(10);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
terminate(0);
|
||||
return (0);
|
||||
}
|
||||
|
||||
// Convert RGB text string into integer data, for given channel
|
||||
// Return number of data points for this channel
|
||||
int str_rgb(char *s, int rgbs[][LED_NCHANS], int chan)
|
||||
{
|
||||
int str_rgb(char *s, int rgbs[][LED_NCHANS], int chan) {
|
||||
int i = 0;
|
||||
char *p;
|
||||
|
||||
while (chan<LED_NCHANS && i<CHAN_MAXLEDS && hexdig(*s)>=0)
|
||||
{
|
||||
while (chan < LED_NCHANS && i < CHAN_MAXLEDS && hexdig(*s) >= 0) {
|
||||
rgbs[i++][chan] = strtoul(s, &p, 16);
|
||||
s = *p ? p + 1 : p;
|
||||
}
|
||||
@ -234,13 +260,11 @@ int str_rgb(char *s, int rgbs[][LED_NCHANS], int chan)
|
||||
}
|
||||
// Set Tx data for 8 or 16 chans, 1 LED per chan, given 1 RGB val per chan
|
||||
// Logic 1 is 0.8us high, 0.4 us low, logic 0 is 0.4us high, 0.8us low
|
||||
void rgb_txdata(int *rgbs, TXDATA_T *txd)
|
||||
{
|
||||
void rgb_txdata(int *rgbs, TXDATA_T *txd) {
|
||||
int i, n, msk;
|
||||
|
||||
// For each bit of the 24-bit RGB values..
|
||||
for (n=0; n<LED_NBITS; n++)
|
||||
{
|
||||
for (n = 0; n < LED_NBITS; n++) {
|
||||
// Mask to convert RGB to GRB, M.S bit first
|
||||
msk = n == 0 ? 0x8000 : n == 8 ? 0x800000 : n == 16 ? 0x80 : msk >> 1;
|
||||
// 1st byte or word is a high pulse on all lines
|
||||
@ -248,8 +272,7 @@ void rgb_txdata(int *rgbs, TXDATA_T *txd)
|
||||
// 2nd has high or low bits from data
|
||||
// 3rd is a low pulse
|
||||
txd[1] = txd[2] = 0;
|
||||
for (i=0; i<LED_NCHANS; i++)
|
||||
{
|
||||
for (i = 0; i < LED_NCHANS; i++) {
|
||||
if (rgbs[i] & msk)
|
||||
txd[1] |= (1 << i);
|
||||
}
|
||||
@ -258,29 +281,25 @@ void rgb_txdata(int *rgbs, TXDATA_T *txd)
|
||||
}
|
||||
|
||||
// Swap adjacent bytes in transmit data
|
||||
void swap_bytes(void *data, int len)
|
||||
{
|
||||
void swap_bytes(void *data, int len) {
|
||||
uint16_t *wp = (uint16_t *)data;
|
||||
|
||||
len = (len + 1) / 2;
|
||||
while (len-- > 0)
|
||||
{
|
||||
while (len-- > 0) {
|
||||
*wp = __builtin_bswap16(*wp);
|
||||
wp++;
|
||||
}
|
||||
}
|
||||
|
||||
// Return hex digit value, -ve if not hex
|
||||
int hexdig(char c)
|
||||
{
|
||||
int hexdig(char c) {
|
||||
c = toupper(c);
|
||||
return ((c >= '0' && c <= '9') ? c - '0' : (c >= 'A' && c <= 'F') ? c - 'A' + 10 : -1);
|
||||
}
|
||||
|
||||
// Map GPIO, DMA and SMI registers into virtual mem (user space)
|
||||
// If any of these fail, program will be terminated
|
||||
void map_devices(void)
|
||||
{
|
||||
void map_devices(void) {
|
||||
map_periph(&gpio_regs, (void *)GPIO_BASE, PAGE_SIZE);
|
||||
map_periph(&dma_regs, (void *)DMA_BASE, PAGE_SIZE);
|
||||
map_periph(&clk_regs, (void *)CLK_BASE, PAGE_SIZE);
|
||||
@ -288,20 +307,27 @@ void map_devices(void)
|
||||
}
|
||||
|
||||
// Catastrophic failure in initial setup
|
||||
void fail(char *s)
|
||||
{
|
||||
void fail(char *s) {
|
||||
printf(s);
|
||||
terminate(0);
|
||||
}
|
||||
|
||||
// Free memory segments and exit
|
||||
void terminate(int sig)
|
||||
{
|
||||
void terminate(int sig) {
|
||||
int i;
|
||||
|
||||
printf("Closing\n");
|
||||
if (gpio_regs.virt)
|
||||
{
|
||||
close(udpSocket);
|
||||
|
||||
for (size_t i = 0; i < chan_ledcount; ++i) {
|
||||
rgb_txdata(off_rgbs, &tx_buffer[LED_TX_OSET(i)]);
|
||||
}
|
||||
swap_bytes(tx_buffer, TX_BUFF_SIZE(chan_ledcount));
|
||||
memcpy(txdata, tx_buffer, TX_BUFF_SIZE(chan_ledcount));
|
||||
start_smi(&vc_mem);
|
||||
sleep(1);
|
||||
|
||||
if (gpio_regs.virt) {
|
||||
for (i = 0; i < LED_NCHANS; i++)
|
||||
gpio_mode(LED_D0_PIN + i, GPIO_IN);
|
||||
}
|
||||
@ -317,8 +343,7 @@ void terminate(int sig)
|
||||
|
||||
// Initialise SMI, given data width, time step, and setup/hold/strobe counts
|
||||
// Step value is in nanoseconds: even numbers, 2 to 30
|
||||
void init_smi(int width, int ns, int setup, int strobe, int hold)
|
||||
{
|
||||
void init_smi(int width, int ns, int setup, int strobe, int hold) {
|
||||
int i, divi = ns / 2;
|
||||
|
||||
smi_cs = (SMI_CS_REG *)REG32(smi_regs, SMI_CS);
|
||||
@ -333,17 +358,18 @@ void init_smi(int width, int ns, int setup, int strobe, int hold)
|
||||
smi_dcd = (SMI_DCD_REG *)REG32(smi_regs, SMI_DCD);
|
||||
smi_cs->value = smi_l->value = smi_a->value = 0;
|
||||
smi_dsr->value = smi_dsw->value = smi_dcs->value = smi_dca->value = 0;
|
||||
if (*REG32(clk_regs, CLK_SMI_DIV) != divi << 12)
|
||||
{
|
||||
if (*REG32(clk_regs, CLK_SMI_DIV) != divi << 12) {
|
||||
*REG32(clk_regs, CLK_SMI_CTL) = CLK_PASSWD | (1 << 5);
|
||||
usleep(10);
|
||||
while (*REG32(clk_regs, CLK_SMI_CTL) & (1 << 7)) ;
|
||||
while (*REG32(clk_regs, CLK_SMI_CTL) & (1 << 7))
|
||||
;
|
||||
usleep(10);
|
||||
*REG32(clk_regs, CLK_SMI_DIV) = CLK_PASSWD | (divi << 12);
|
||||
usleep(10);
|
||||
*REG32(clk_regs, CLK_SMI_CTL) = CLK_PASSWD | 6 | (1 << 4);
|
||||
usleep(10);
|
||||
while ((*REG32(clk_regs, CLK_SMI_CTL) & (1 << 7)) == 0) ;
|
||||
while ((*REG32(clk_regs, CLK_SMI_CTL) & (1 << 7)) == 0)
|
||||
;
|
||||
usleep(100);
|
||||
}
|
||||
if (smi_cs->seterr)
|
||||
@ -359,8 +385,7 @@ void init_smi(int width, int ns, int setup, int strobe, int hold)
|
||||
}
|
||||
|
||||
// Set up SMI transfers using DMA
|
||||
void setup_smi_dma(MEM_MAP *mp, int nsamp)
|
||||
{
|
||||
void setup_smi_dma(MEM_MAP *mp, int nsamp) {
|
||||
DMA_CB *cbs = mp->virt;
|
||||
|
||||
txdata = (TXDATA_T *)(cbs + 1);
|
||||
@ -378,8 +403,7 @@ void setup_smi_dma(MEM_MAP *mp, int nsamp)
|
||||
}
|
||||
|
||||
// Start SMI DMA transfers
|
||||
void start_smi(MEM_MAP *mp)
|
||||
{
|
||||
void start_smi(MEM_MAP *mp) {
|
||||
DMA_CB *cbs = mp->virt;
|
||||
|
||||
start_dma(mp, DMA_CHAN, &cbs[0], 0);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user