nefarius/Nefarius.Peripherals.SerialPort
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Migrated to CsWin32 #1

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nefarius merged 14 commits from nefarius/bugfix/refactoring into master 2024-07-13 15:32:14 +02:00
Conversation 0 Commits 14 Files Changed 9 +926 -504
9 changed files with 926 additions and 504 deletions
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394
.editorconfig Normal file
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root = true
# All files
[*]
indent_style = space
# Xml files
[*.xml]
indent_size = 2
# C# files
[*.cs]
#### Core EditorConfig Options ####
# Indentation and spacing
indent_size = 4
tab_width = 4
# New line preferences
end_of_line = crlf
insert_final_newline = false
#### .NET Coding Conventions ####
[*.{cs,vb}]
# Organize usings
dotnet_separate_import_directive_groups = true
dotnet_sort_system_directives_first = true
file_header_template = unset
# this. and Me. preferences
dotnet_style_qualification_for_event = false:warning
dotnet_style_qualification_for_field = false:warning
dotnet_style_qualification_for_method = false:silent
dotnet_style_qualification_for_property = false:warning
# Language keywords vs BCL types preferences
dotnet_style_predefined_type_for_locals_parameters_members = true:silent
dotnet_style_predefined_type_for_member_access = true:silent
# Parentheses preferences
dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:silent
dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:silent
dotnet_style_parentheses_in_other_operators = never_if_unnecessary:silent
dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:silent
# Modifier preferences
dotnet_style_require_accessibility_modifiers = for_non_interface_members:silent
# Expression-level preferences
dotnet_style_coalesce_expression = true:suggestion
dotnet_style_collection_initializer = true:suggestion
dotnet_style_explicit_tuple_names = true:suggestion
dotnet_style_null_propagation = true:suggestion
dotnet_style_object_initializer = true:suggestion
dotnet_style_operator_placement_when_wrapping = beginning_of_line
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dotnet_style_prefer_conditional_expression_over_assignment = true:silent
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dotnet_style_prefer_simplified_boolean_expressions = true:suggestion
dotnet_style_prefer_simplified_interpolation = true:suggestion
# Field preferences
dotnet_style_readonly_field = true:warning
# Parameter preferences
dotnet_code_quality_unused_parameters = all:suggestion
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dotnet_remove_unnecessary_suppression_exclusions = none
#### C# Coding Conventions ####
[*.cs]
# var preferences
csharp_style_var_elsewhere = false:silent
csharp_style_var_for_built_in_types = false:silent
csharp_style_var_when_type_is_apparent = false:silent
# Expression-bodied members
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csharp_style_expression_bodied_constructors = false:silent
csharp_style_expression_bodied_indexers = true:silent
csharp_style_expression_bodied_lambdas = true:silent
csharp_style_expression_bodied_local_functions = false:silent
csharp_style_expression_bodied_methods = false:silent
csharp_style_expression_bodied_operators = false:silent
csharp_style_expression_bodied_properties = true:silent
# Pattern matching preferences
csharp_style_pattern_matching_over_as_with_null_check = true:suggestion
csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
csharp_style_prefer_not_pattern = true:suggestion
csharp_style_prefer_pattern_matching = true:silent
csharp_style_prefer_switch_expression = true:suggestion
# Null-checking preferences
csharp_style_conditional_delegate_call = true:suggestion
# Modifier preferences
csharp_prefer_static_local_function = true:warning
csharp_preferred_modifier_order = public,private,protected,internal,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,volatile,async:silent
# Code-block preferences
csharp_prefer_braces = true:silent
csharp_prefer_simple_using_statement = true:suggestion
# Expression-level preferences
csharp_prefer_simple_default_expression = true:suggestion
csharp_style_deconstructed_variable_declaration = true:suggestion
csharp_style_inlined_variable_declaration = true:suggestion
csharp_style_pattern_local_over_anonymous_function = true:suggestion
csharp_style_prefer_index_operator = true:suggestion
csharp_style_prefer_range_operator = true:suggestion
csharp_style_throw_expression = true:suggestion
csharp_style_unused_value_assignment_preference = discard_variable:suggestion
csharp_style_unused_value_expression_statement_preference = discard_variable:silent
# 'using' directive preferences
csharp_using_directive_placement = outside_namespace:silent
#### C# Formatting Rules ####
# New line preferences
csharp_new_line_before_catch = true
csharp_new_line_before_else = true
csharp_new_line_before_finally = true
csharp_new_line_before_members_in_anonymous_types = true
csharp_new_line_before_members_in_object_initializers = true
csharp_new_line_before_open_brace = all
csharp_new_line_between_query_expression_clauses = true
# Indentation preferences
csharp_indent_block_contents = true
csharp_indent_braces = false
csharp_indent_case_contents = true
csharp_indent_case_contents_when_block = true
csharp_indent_labels = one_less_than_current
csharp_indent_switch_labels = true
# Space preferences
csharp_space_after_cast = false
csharp_space_after_colon_in_inheritance_clause = true
csharp_space_after_comma = true
csharp_space_after_dot = false
csharp_space_after_keywords_in_control_flow_statements = true
csharp_space_after_semicolon_in_for_statement = true
csharp_space_around_binary_operators = before_and_after
csharp_space_around_declaration_statements = false
csharp_space_before_colon_in_inheritance_clause = true
csharp_space_before_comma = false
csharp_space_before_dot = false
csharp_space_before_open_square_brackets = false
csharp_space_before_semicolon_in_for_statement = false
csharp_space_between_empty_square_brackets = false
csharp_space_between_method_call_empty_parameter_list_parentheses = false
csharp_space_between_method_call_name_and_opening_parenthesis = false
csharp_space_between_method_call_parameter_list_parentheses = false
csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
csharp_space_between_method_declaration_name_and_open_parenthesis = false
csharp_space_between_method_declaration_parameter_list_parentheses = false
csharp_space_between_parentheses = false
csharp_space_between_square_brackets = false
# Wrapping preferences
csharp_preserve_single_line_blocks = true
csharp_preserve_single_line_statements = true
csharp_style_namespace_declarations = file_scoped:warning
csharp_style_prefer_method_group_conversion = true:silent
csharp_style_prefer_top_level_statements = true:silent
csharp_style_prefer_null_check_over_type_check = true:suggestion
csharp_style_prefer_local_over_anonymous_function = true:suggestion
csharp_style_prefer_utf8_string_literals = true:suggestion
csharp_style_prefer_tuple_swap = true:suggestion
csharp_style_implicit_object_creation_when_type_is_apparent = true:suggestion
csharp_style_allow_embedded_statements_on_same_line_experimental = true:silent
csharp_style_allow_blank_line_after_colon_in_constructor_initializer_experimental = true:silent
csharp_style_allow_blank_lines_between_consecutive_braces_experimental = true:silent
csharp_style_prefer_extended_property_pattern = true:suggestion
#### Naming styles ####
[*.{cs,vb}]
# Naming rules
dotnet_naming_rule.types_and_namespaces_should_be_pascalcase.severity = warning
dotnet_naming_rule.types_and_namespaces_should_be_pascalcase.symbols = types_and_namespaces
dotnet_naming_rule.types_and_namespaces_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.interfaces_should_be_ipascalcase.severity = warning
dotnet_naming_rule.interfaces_should_be_ipascalcase.symbols = interfaces
dotnet_naming_rule.interfaces_should_be_ipascalcase.style = ipascalcase
dotnet_naming_rule.type_parameters_should_be_tpascalcase.severity = warning
dotnet_naming_rule.type_parameters_should_be_tpascalcase.symbols = type_parameters
dotnet_naming_rule.type_parameters_should_be_tpascalcase.style = tpascalcase
dotnet_naming_rule.methods_should_be_pascalcase.severity = warning
dotnet_naming_rule.methods_should_be_pascalcase.symbols = methods
dotnet_naming_rule.methods_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.properties_should_be_pascalcase.severity = warning
dotnet_naming_rule.properties_should_be_pascalcase.symbols = properties
dotnet_naming_rule.properties_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.events_should_be_pascalcase.severity = warning
dotnet_naming_rule.events_should_be_pascalcase.symbols = events
dotnet_naming_rule.events_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.local_variables_should_be_camelcase.severity = warning
dotnet_naming_rule.local_variables_should_be_camelcase.symbols = local_variables
dotnet_naming_rule.local_variables_should_be_camelcase.style = camelcase
dotnet_naming_rule.local_constants_should_be_camelcase.severity = warning
dotnet_naming_rule.local_constants_should_be_camelcase.symbols = local_constants
dotnet_naming_rule.local_constants_should_be_camelcase.style = all_caps
dotnet_naming_rule.parameters_should_be_camelcase.severity = warning
dotnet_naming_rule.parameters_should_be_camelcase.symbols = parameters
dotnet_naming_rule.parameters_should_be_camelcase.style = camelcase
dotnet_naming_rule.public_fields_should_be_pascalcase.severity = warning
dotnet_naming_rule.public_fields_should_be_pascalcase.symbols = public_fields
dotnet_naming_rule.public_fields_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.private_fields_should_be__camelcase.severity = warning
dotnet_naming_rule.private_fields_should_be__camelcase.symbols = private_fields
dotnet_naming_rule.private_fields_should_be__camelcase.style = _camelcase
dotnet_naming_rule.private_static_fields_should_be_s_camelcase.severity = warning
dotnet_naming_rule.private_static_fields_should_be_s_camelcase.symbols = private_static_fields
dotnet_naming_rule.private_static_fields_should_be_s_camelcase.style = _camelcase
dotnet_naming_rule.public_constant_fields_should_be_pascalcase.severity = warning
dotnet_naming_rule.public_constant_fields_should_be_pascalcase.symbols = public_constant_fields
dotnet_naming_rule.public_constant_fields_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.private_constant_fields_should_be_pascalcase.severity = warning
dotnet_naming_rule.private_constant_fields_should_be_pascalcase.symbols = private_constant_fields
dotnet_naming_rule.private_constant_fields_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.public_static_readonly_fields_should_be_pascalcase.severity = warning
dotnet_naming_rule.public_static_readonly_fields_should_be_pascalcase.symbols = public_static_readonly_fields
dotnet_naming_rule.public_static_readonly_fields_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.private_static_readonly_fields_should_be_pascalcase.severity = warning
dotnet_naming_rule.private_static_readonly_fields_should_be_pascalcase.symbols = private_static_readonly_fields
dotnet_naming_rule.private_static_readonly_fields_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.enums_should_be_pascalcase.severity = warning
dotnet_naming_rule.enums_should_be_pascalcase.symbols = enums
dotnet_naming_rule.enums_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.local_functions_should_be_pascalcase.severity = warning
dotnet_naming_rule.local_functions_should_be_pascalcase.symbols = local_functions
dotnet_naming_rule.local_functions_should_be_pascalcase.style = pascalcase
dotnet_naming_rule.non_field_members_should_be_pascalcase.severity = warning
dotnet_naming_rule.non_field_members_should_be_pascalcase.symbols = non_field_members
dotnet_naming_rule.non_field_members_should_be_pascalcase.style = pascalcase
# Symbol specifications
dotnet_naming_symbols.interfaces.applicable_kinds = interface
dotnet_naming_symbols.interfaces.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
dotnet_naming_symbols.interfaces.required_modifiers =
dotnet_naming_symbols.enums.applicable_kinds = enum
dotnet_naming_symbols.enums.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
dotnet_naming_symbols.enums.required_modifiers =
dotnet_naming_symbols.events.applicable_kinds = event
dotnet_naming_symbols.events.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
dotnet_naming_symbols.events.required_modifiers =
dotnet_naming_symbols.methods.applicable_kinds = method
dotnet_naming_symbols.methods.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
dotnet_naming_symbols.methods.required_modifiers =
dotnet_naming_symbols.properties.applicable_kinds = property
dotnet_naming_symbols.properties.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
dotnet_naming_symbols.properties.required_modifiers =
dotnet_naming_symbols.public_fields.applicable_kinds = field
dotnet_naming_symbols.public_fields.applicable_accessibilities = public, internal
dotnet_naming_symbols.public_fields.required_modifiers =
dotnet_naming_symbols.private_fields.applicable_kinds = field
dotnet_naming_symbols.private_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
dotnet_naming_symbols.private_fields.required_modifiers =
dotnet_naming_symbols.private_static_fields.applicable_kinds = field
dotnet_naming_symbols.private_static_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
dotnet_naming_symbols.private_static_fields.required_modifiers = static
dotnet_naming_symbols.types_and_namespaces.applicable_kinds = namespace, class, struct, interface, enum
dotnet_naming_symbols.types_and_namespaces.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
dotnet_naming_symbols.types_and_namespaces.required_modifiers =
dotnet_naming_symbols.non_field_members.applicable_kinds = property, event, method
dotnet_naming_symbols.non_field_members.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
dotnet_naming_symbols.non_field_members.required_modifiers =
dotnet_naming_symbols.type_parameters.applicable_kinds = namespace
dotnet_naming_symbols.type_parameters.applicable_accessibilities = *
dotnet_naming_symbols.type_parameters.required_modifiers =
dotnet_naming_symbols.private_constant_fields.applicable_kinds = field
dotnet_naming_symbols.private_constant_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
dotnet_naming_symbols.private_constant_fields.required_modifiers = const
dotnet_naming_symbols.local_variables.applicable_kinds = local
dotnet_naming_symbols.local_variables.applicable_accessibilities = local
dotnet_naming_symbols.local_variables.required_modifiers =
dotnet_naming_symbols.local_constants.applicable_kinds = local
dotnet_naming_symbols.local_constants.applicable_accessibilities = local
dotnet_naming_symbols.local_constants.required_modifiers = const
dotnet_naming_symbols.parameters.applicable_kinds = parameter
dotnet_naming_symbols.parameters.applicable_accessibilities = *
dotnet_naming_symbols.parameters.required_modifiers =
dotnet_naming_symbols.public_constant_fields.applicable_kinds = field
dotnet_naming_symbols.public_constant_fields.applicable_accessibilities = public, internal
dotnet_naming_symbols.public_constant_fields.required_modifiers = const
dotnet_naming_symbols.public_static_readonly_fields.applicable_kinds = field
dotnet_naming_symbols.public_static_readonly_fields.applicable_accessibilities = public, internal
dotnet_naming_symbols.public_static_readonly_fields.required_modifiers = readonly, static
dotnet_naming_symbols.private_static_readonly_fields.applicable_kinds = field
dotnet_naming_symbols.private_static_readonly_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
dotnet_naming_symbols.private_static_readonly_fields.required_modifiers = readonly, static
dotnet_naming_symbols.local_functions.applicable_kinds = local_function
dotnet_naming_symbols.local_functions.applicable_accessibilities = *
dotnet_naming_symbols.local_functions.required_modifiers =
# Naming styles
dotnet_naming_style.pascalcase.required_prefix =
dotnet_naming_style.pascalcase.required_suffix =
dotnet_naming_style.pascalcase.word_separator =
dotnet_naming_style.pascalcase.capitalization = pascal_case
dotnet_naming_style.ipascalcase.required_prefix = I
dotnet_naming_style.ipascalcase.required_suffix =
dotnet_naming_style.ipascalcase.word_separator =
dotnet_naming_style.ipascalcase.capitalization = pascal_case
dotnet_naming_style.tpascalcase.required_prefix = T
dotnet_naming_style.tpascalcase.required_suffix =
dotnet_naming_style.tpascalcase.word_separator =
dotnet_naming_style.tpascalcase.capitalization = pascal_case
dotnet_naming_style._camelcase.required_prefix = _
dotnet_naming_style._camelcase.required_suffix =
dotnet_naming_style._camelcase.word_separator =
dotnet_naming_style._camelcase.capitalization = camel_case
dotnet_naming_style.camelcase.required_prefix =
dotnet_naming_style.camelcase.required_suffix =
dotnet_naming_style.camelcase.word_separator =
dotnet_naming_style.camelcase.capitalization = camel_case
dotnet_naming_style.s_camelcase.required_prefix = s_
dotnet_naming_style.s_camelcase.required_suffix =
dotnet_naming_style.s_camelcase.word_separator =
dotnet_naming_style.s_camelcase.capitalization = camel_case
dotnet_naming_style.all_caps.required_prefix =
dotnet_naming_style.all_caps.required_suffix =
dotnet_naming_style.all_caps.word_separator = _
dotnet_naming_style.all_caps.capitalization = all_caps
tab_width = 4
indent_size = 4
end_of_line = crlf
dotnet_style_namespace_match_folder = true:suggestion
dotnet_style_allow_statement_immediately_after_block_experimental = true:silent
dotnet_style_allow_multiple_blank_lines_experimental = true:silent
# Unnecessary usings
dotnet_diagnostic.IDE0005.severity = warning
resharper_csharp_place_attribute_on_same_line = false
csharp_style_prefer_primary_constructors = false

1
.gitignore vendored
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@ -34,3 +34,4 @@ _ReSharper*/
/.tmp
*.DotSettings
/misc
/.idea

33
Nefarius.Peripherals.SerialPort/NativeMethods.txt
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@ -1,17 +1,28 @@
CreateFile
CancelIo
ClearCommError
EscapeCommFunction
FILE_ACCESS_RIGHTS
GetCommModemStatus
GetCommProperties
GetHandleInformation
GetOverlappedResult
MODEM_STATUS_FLAGS
ReadFile
SetCommMask
SetCommState
SetCommTimeouts
SetupComm
WriteFile
SetCommMask
WaitCommEvent
CancelIo
ReadFile
TransmitCommChar
WIN32_ERROR
WaitCommEvent
WriteFile
CreateFile
ESCAPE_COMM_FUNCTION
EscapeCommFunction
GetCommModemStatus
GetOverlappedResult
ClearCommError
GetCommProperties
WIN32_ERROR
CLEAR_COMM_ERROR_FLAGS
CE_TXFULL
CE_PTO
CE_IOE
CE_DNS
CE_OOP
CE_MODE

5
Nefarius.Peripherals.SerialPort/Nefarius.Peripherals.SerialPort.csproj
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@ -31,9 +31,10 @@
</ItemGroup>
<ItemGroup>
<PackageReference Include="JetBrains.Annotations" Version="2022.1.0" />
<PackageReference Include="Microsoft.Windows.CsWin32" Version="0.2.63-beta">
<PackageReference Include="Microsoft.Windows.CsWin32" Version="0.3.123">
<PrivateAssets>all</PrivateAssets>
</PackageReference>
<PackageReference Include="Microsoft.Windows.SDK.Win32Metadata" Version="61.0.15-preview" />
<PackageReference Include="System.Memory" Version="4.5.5" />
</ItemGroup>
</Project>

2
Nefarius.Peripherals.SerialPort/QueueStatus.cs
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@ -1,5 +1,5 @@
using System.Text;
using Nefarius.Peripherals.SerialPort.Win32PInvoke;
namespace Nefarius.Peripherals.SerialPort
{

278
Nefarius.Peripherals.SerialPort/SerialPort.Properties.cs Normal file
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using Windows.Win32;
using Windows.Win32.Devices.Communication;
namespace Nefarius.Peripherals.SerialPort;
public partial class SerialPort
{
/// <summary>
/// If true, the port will automatically re-open on next send if it was previously closed due
/// to an error (default: false)
/// </summary>
public bool AutoReopen { get; set; }
/// <summary>
/// Baud Rate (default: 115200)
/// </summary>
/// <remarks>Unsupported rates will throw "Bad settings".</remarks>
public int BaudRate { get; set; } = 115200;
/// <summary>
/// If true, subsequent Send commands wait for completion of earlier ones enabling the results
/// to be checked. If false, errors, including timeouts, may not be detected, but performance
/// may be better.
/// </summary>
public bool CheckAllSends { get; set; } = true;
/// <summary>
/// Number of databits 1..8 (default: 8) unsupported values will throw "Bad settings"
/// </summary>
public int DataBits { get; set; } = 8;
/// <summary>
/// The parity checking scheme (default: none)
/// </summary>
public Parity Parity { get; set; } = Parity.None;
/// <summary>
/// If true, Xon and Xoff characters are sent to control the data flow from the remote station (default: false)
/// </summary>
public bool RxFlowX { get; set; }
/// <summary>
/// If true, received characters are ignored unless DSR is asserted by the remote station (default: false)
/// </summary>
public bool RxGateDsr { get; set; }
/// <summary>
/// The number of free bytes in the reception queue at which flow is disabled (default: 2048)
/// </summary>
public int RxHighWater { get; set; } = 2048;
/// <summary>
/// The number of bytes in the reception queue at which flow is re-enabled (default: 512)
/// </summary>
public int RxLowWater { get; set; } = 512;
/// <summary>
/// Requested size for receive queue (default: 0 = use operating system default)
/// </summary>
public int RxQueue { get; set; }
/// <summary>
/// Constant. Max time for Send in ms = (Multiplier * Characters) + Constant (default: 0)
/// </summary>
public int SendTimeoutConstant { get; set; }
/// <summary>
/// Multiplier. Max time for Send in ms = (Multiplier * Characters) + Constant
/// (default: 0 = No timeout)
/// </summary>
public int SendTimeoutMultiplier { get; set; }
/// <summary>
/// Number of stop bits (default: one)
/// </summary>
public StopBits StopBits { get; set; } = StopBits.One;
/// <summary>
/// If true, transmission is halted unless CTS is asserted by the remote station (default: false)
/// </summary>
public bool TxFlowCts { get; set; }
/// <summary>
/// If true, transmission is halted unless DSR is asserted by the remote station (default: false)
/// </summary>
public bool TxFlowDsr { get; set; }
/// <summary>
/// If true, transmission is halted when Xoff is received and restarted when Xon is received (default: false)
/// </summary>
public bool TxFlowX { get; set; }
/// <summary>
/// Requested size for transmit queue (default: 0 = use operating system default)
/// </summary>
public int TxQueue { get; set; }
/// <summary>
/// If false, transmission is suspended when this station has sent Xoff to the remote station (default: true)
/// Set false if the remote station treats any character as an Xon.
/// </summary>
public bool TxWhenRxXoff { get; set; } = true;
/// <summary>
/// Specidies the use to which the DTR output is put (default: none)
/// </summary>
public HsOutput UseDtr { get; set; } = HsOutput.None;
/// <summary>
/// Specifies the use to which the RTS output is put (default: none)
/// </summary>
public HsOutput UseRts { get; set; } = HsOutput.None;
/// <summary>
/// The character used to signal Xoff for X flow control (default: DC3)
/// </summary>
public ASCII XoffChar { get; set; } = ASCII.DC3;
/// <summary>
/// The character used to signal Xon for X flow control (default: DC1)
/// </summary>
public ASCII XonChar { get; set; } = ASCII.DC1;
/// <summary>
/// True if online.
/// </summary>
public bool Online => _online && CheckOnline();
/// <summary>
/// True if the RTS pin is controllable via the RTS property
/// </summary>
protected bool RtSavailable => _stateRts < 2;
/// <summary>
/// Set the state of the RTS modem control output
/// </summary>
protected bool Rts
{
set
{
if (_stateRts > 1) return;
CheckOnline();
if (value)
{
if (PInvoke.EscapeCommFunction(_hPort, ESCAPE_COMM_FUNCTION.SETRTS))
_stateRts = 1;
else
ThrowException("Unexpected Failure");
}
else
{
if (PInvoke.EscapeCommFunction(_hPort, ESCAPE_COMM_FUNCTION.CLRRTS))
_stateRts = 1;
else
ThrowException("Unexpected Failure");
}
}
get => _stateRts == 1;
}
/// <summary>
/// True if the DTR pin is controllable via the DTR property
/// </summary>
protected bool DtrAvailable => _stateDtr < 2;
/// <summary>
/// The state of the DTR modem control output
/// </summary>
protected bool Dtr
{
set
{
if (_stateDtr > 1) return;
CheckOnline();
if (value)
{
if (PInvoke.EscapeCommFunction(_hPort, ESCAPE_COMM_FUNCTION.SETDTR))
_stateDtr = 1;
else
ThrowException("Unexpected Failure");
}
else
{
if (PInvoke.EscapeCommFunction(_hPort, ESCAPE_COMM_FUNCTION.CLRDTR))
_stateDtr = 0;
else
ThrowException("Unexpected Failure");
}
}
get => _stateDtr == 1;
}
/// <summary>
/// Assert or remove a break condition from the transmission line
/// </summary>
protected bool Break
{
set
{
if (_stateBrk > 1) return;
CheckOnline();
if (value)
{
if (PInvoke.EscapeCommFunction(_hPort, ESCAPE_COMM_FUNCTION.SETBREAK))
_stateBrk = 0;
else
ThrowException("Unexpected Failure");
}
else
{
if (PInvoke.EscapeCommFunction(_hPort, ESCAPE_COMM_FUNCTION.CLRBREAK))
_stateBrk = 0;
else
ThrowException("Unexpected Failure");
}
}
get => _stateBrk == 1;
}
/// <summary>
/// Port Name
/// </summary>
public string PortName { get; set; }
public Handshake Handshake
{
get => _handShake;
set
{
_handShake = value;
switch (_handShake)
{
case Handshake.None:
TxFlowCts = false;
TxFlowDsr = false;
TxFlowX = false;
RxFlowX = false;
UseRts = HsOutput.Online;
UseDtr = HsOutput.Online;
TxWhenRxXoff = true;
RxGateDsr = false;
break;
case Handshake.XonXoff:
TxFlowCts = false;
TxFlowDsr = false;
TxFlowX = true;
RxFlowX = true;
UseRts = HsOutput.Online;
UseDtr = HsOutput.Online;
TxWhenRxXoff = true;
RxGateDsr = false;
XonChar = ASCII.DC1;
XoffChar = ASCII.DC3;
break;
case Handshake.CtsRts:
TxFlowCts = true;
TxFlowDsr = false;
TxFlowX = false;
RxFlowX = false;
UseRts = HsOutput.Handshake;
UseDtr = HsOutput.Online;
TxWhenRxXoff = true;
RxGateDsr = false;
break;
case Handshake.DsrDtr:
TxFlowCts = false;
TxFlowDsr = true;
TxFlowX = false;
RxFlowX = false;
UseRts = HsOutput.Online;
UseDtr = HsOutput.Handshake;
TxWhenRxXoff = true;
RxGateDsr = false;
break;
}
}
}
}

617
Nefarius.Peripherals.SerialPort/SerialPort.cs
View File

@ -1,22 +1,57 @@
using System;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using Windows.Win32;
using Windows.Win32.Devices.Communication;
using Windows.Win32.Foundation;
using Windows.Win32.Storage.FileSystem;
using Microsoft.Win32.SafeHandles;
using Nefarius.Peripherals.SerialPort.Win32PInvoke;
namespace Nefarius.Peripherals.SerialPort;
/// <summary>
/// PInvokeSerialPort main class.
/// Borrowed from http://msdn.microsoft.com/en-us/magazine/cc301786.aspx ;)
/// Wrapper class around a serial (COM, RS-232) port.
/// </summary>
public class SerialPort : IDisposable
[SuppressMessage("ReSharper", "UnusedMember.Global")]
public partial class SerialPort : IDisposable
{
private readonly ManualResetEvent _writeEvent = new(false);
private bool _auto;
private bool _checkSends = true;
private Handshake _handShake;
private SafeFileHandle _hPort;
private bool _online;
private NativeOverlapped _ptrUwo;
private Exception _rxException;
private bool _rxExceptionReported;
private Thread _rxThread;
private int _stateBrk = 2;
private int _stateDtr = 2;
private int _stateRts = 2;
private int _writeCount;
/// <summary>
/// Class constructor
/// </summary>
public SerialPort(string portName)
{
PortName = portName;
}
/// <inheritdoc />
/// <summary>
/// Class constructor
/// </summary>
public SerialPort(string portName, int baudRate) : this(portName)
{
BaudRate = baudRate;
}
/// <inheritdoc />
/// <summary>
/// For IDisposable
@ -32,18 +67,25 @@ public class SerialPort : IDisposable
/// <returns>false if the port could not be opened</returns>
public bool Open()
{
var portDcb = new DCB();
var commTimeouts = new COMMTIMEOUTS();
DCB portDcb = new();
COMMTIMEOUTS commTimeouts = new();
if (_online) return false;
if (_online)
{
return false;
}
_hPort = PInvoke.CreateFile(PortName,
FILE_ACCESS_FLAGS.FILE_GENERIC_READ | FILE_ACCESS_FLAGS.FILE_GENERIC_WRITE, 0,
(uint)(FILE_ACCESS_RIGHTS.FILE_GENERIC_READ | FILE_ACCESS_RIGHTS.FILE_GENERIC_WRITE), 0,
null, FILE_CREATION_DISPOSITION.OPEN_EXISTING, FILE_FLAGS_AND_ATTRIBUTES.FILE_FLAG_OVERLAPPED, null);
if (_hPort.IsInvalid)
{
if (Marshal.GetLastWin32Error() == (int)WIN32_ERROR.ERROR_ACCESS_DENIED) return false;
if (Marshal.GetLastWin32Error() == (int)WIN32_ERROR.ERROR_ACCESS_DENIED)
{
return false;
}
throw new CommPortException("Port Open Failure");
}
@ -60,20 +102,28 @@ public class SerialPort : IDisposable
portDcb.ByteSize = (byte)DataBits;
portDcb.Parity = (DCB_PARITY)Parity;
portDcb.StopBits = (DCB_STOP_BITS)StopBits;
portDcb.XoffChar = (CHAR)(byte)XoffChar;
portDcb.XonChar = (CHAR)(byte)XonChar;
portDcb.XoffChar = new CHAR((sbyte)XoffChar);
portDcb.XonChar = new CHAR((sbyte)XonChar);
portDcb.XoffLim = (ushort)RxHighWater;
portDcb.XonLim = (ushort)RxLowWater;
if (RxQueue != 0 || TxQueue != 0)
{
if (!PInvoke.SetupComm(_hPort, (uint)RxQueue, (uint)TxQueue))
{
ThrowException("Bad queue settings");
}
}
if (!PInvoke.SetCommState(_hPort, portDcb))
{
ThrowException("Bad com settings");
}
if (!PInvoke.SetCommTimeouts(_hPort, commTimeouts))
{
ThrowException("Bad timeout settings");
}
_stateBrk = 0;
switch (UseDtr)
@ -103,12 +153,9 @@ public class SerialPort : IDisposable
_rxException = null;
_rxExceptionReported = false;
// TODO: utilize Task Parallel Library here
_rxThread = new Thread(ReceiveThread)
{
Name = "CommBaseRx",
Priority = ThreadPriority.AboveNormal,
IsBackground = true
Name = "CommBaseRx", Priority = ThreadPriority.AboveNormal, IsBackground = true
};
_rxThread.Start();
@ -141,7 +188,7 @@ public class SerialPort : IDisposable
private void InternalClose()
{
Win32Com.CancelIo(_hPort.DangerousGetHandle());
PInvoke.CancelIo(_hPort);
if (_rxThread != null)
{
_rxThread.Abort();
@ -179,14 +226,22 @@ public class SerialPort : IDisposable
/// <param name="reason">Description of fault</param>
protected void ThrowException(string reason)
{
if (Thread.CurrentThread == _rxThread) throw new CommPortException(reason);
if (Thread.CurrentThread == _rxThread)
{
throw new CommPortException(reason);
}
if (_online)
{
BeforeClose(true);
InternalClose();
}
if (_rxException == null) throw new CommPortException(reason);
if (_rxException == null)
{
throw new CommPortException(reason);
}
throw new CommPortException(_rxException);
}
@ -196,22 +251,23 @@ public class SerialPort : IDisposable
/// <param name="toSend">Array of bytes to be sent</param>
public unsafe void Write(byte[] toSend)
{
uint sent;
CheckOnline();
CheckResult();
_writeCount = toSend.GetLength(0);
fixed (byte* ptr = toSend)
fixed (NativeOverlapped* ptrOl = &_ptrUwo)
{
if (PInvoke.WriteFile(_hPort, ptr, (uint)_writeCount, &sent, ptrOl))
uint sent;
if (PInvoke.WriteFile(_hPort, toSend.AsSpan(), &sent, ptrOl))
{
_writeCount -= (int)sent;
}
else
{
if (Marshal.GetLastWin32Error() != (int)WIN32_ERROR.ERROR_IO_PENDING)
if (Marshal.GetLastWin32Error() != (int)WIN32_ERROR.ERROR_IO_PENDING)
{
ThrowException("Unexpected failure");
}
}
}
}
@ -231,7 +287,7 @@ public class SerialPort : IDisposable
/// <param name="toSend">Byte to be sent</param>
public void Write(byte toSend)
{
var b = new byte[1];
byte[] b = new byte[1];
b[0] = toSend;
Write(b);
}
@ -256,15 +312,25 @@ public class SerialPort : IDisposable
private void CheckResult()
{
if (_writeCount <= 0) return;
if (PInvoke.GetOverlappedResult(_hPort, _ptrUwo, out var sent, _checkSends))
if (_writeCount <= 0)
{
return;
}
if (PInvoke.GetOverlappedResult(_hPort, _ptrUwo, out uint sent, _checkSends))
{
_writeCount -= (int)sent;
if (_writeCount != 0) ThrowException("Send Timeout");
if (_writeCount != 0)
{
ThrowException("Send Timeout");
}
}
else
{
if (Marshal.GetLastWin32Error() != (int)WIN32_ERROR.ERROR_IO_PENDING) ThrowException("Unexpected failure");
if (Marshal.GetLastWin32Error() != (int)WIN32_ERROR.ERROR_IO_PENDING)
{
ThrowException("Unexpected failure");
}
}
}
@ -276,7 +342,10 @@ public class SerialPort : IDisposable
public void SendImmediate(byte tosend)
{
CheckOnline();
if (!Win32Com.TransmitCommChar(_hPort.DangerousGetHandle(), tosend)) ThrowException("Transmission failure");
if (!PInvoke.TransmitCommChar(_hPort, new CHAR((sbyte)tosend)))
{
ThrowException("Transmission failure");
}
}
/// <summary>
@ -285,14 +354,15 @@ public class SerialPort : IDisposable
/// <returns>Modem status object</returns>
protected ModemStatus GetModemStatus()
{
uint f;
CheckOnline();
if (!Win32Com.GetCommModemStatus(_hPort.DangerousGetHandle(), out f)) ThrowException("Unexpected failure");
if (!PInvoke.GetCommModemStatus(_hPort, out MODEM_STATUS_FLAGS f))
{
ThrowException("Unexpected failure");
}
return new ModemStatus(f);
}
/// <summary>
/// Get the status of the queues
/// </summary>
@ -300,15 +370,19 @@ public class SerialPort : IDisposable
protected unsafe QueueStatus GetQueueStatus()
{
COMSTAT cs;
var cp = new COMMPROP();
COMMPROP cp = new();
CLEAR_COMM_ERROR_FLAGS er;
CheckOnline();
if (!PInvoke.ClearCommError(_hPort, &er, &cs))
{
ThrowException("Unexpected failure");
}
if (!PInvoke.GetCommProperties(_hPort, ref cp))
if (!PInvoke.GetCommProperties(_hPort, &cp))
{
ThrowException("Unexpected failure");
}
return new QueueStatus(cs._bitfield, cs.cbInQue, cs.cbOutQue, cp.dwCurrentRxQueue, cp.dwCurrentTxQueue);
}
@ -383,49 +457,73 @@ public class SerialPort : IDisposable
private unsafe void ReceiveThread()
{
var buf = new byte[1];
var sg = new AutoResetEvent(false);
var ov = new OVERLAPPED();
var unmanagedOv = Marshal.AllocHGlobal(Marshal.SizeOf(ov));
ov.Offset = 0;
ov.OffsetHigh = 0;
ov.hEvent = sg.SafeWaitHandle.DangerousGetHandle();
Marshal.StructureToPtr(ov, unmanagedOv, true);
uint eventMask = 0;
var uMask = Marshal.AllocHGlobal(Marshal.SizeOf(eventMask));
byte[] buffer = new byte[1];
AutoResetEvent sg = new(false);
NativeOverlapped ov = new() { EventHandle = sg.SafeWaitHandle.DangerousGetHandle() };
try
{
while (true)
{
if (!Win32Com.SetCommMask(_hPort.DangerousGetHandle(),
Win32Com.EV_RXCHAR | Win32Com.EV_TXEMPTY | Win32Com.EV_CTS | Win32Com.EV_DSR
| Win32Com.EV_BREAK | Win32Com.EV_RLSD | Win32Com.EV_RING | Win32Com.EV_ERR))
throw new CommPortException("IO Error [001]");
Marshal.WriteInt32(uMask, 0);
if (!Win32Com.WaitCommEvent(_hPort.DangerousGetHandle(), uMask, unmanagedOv))
COMM_EVENT_MASK eventMask = 0;
if (!PInvoke.SetCommMask(_hPort,
COMM_EVENT_MASK.EV_RXCHAR | COMM_EVENT_MASK.EV_TXEMPTY | COMM_EVENT_MASK.EV_CTS |
COMM_EVENT_MASK.EV_DSR
| COMM_EVENT_MASK.EV_BREAK | COMM_EVENT_MASK.EV_RLSD | COMM_EVENT_MASK.EV_RING |
COMM_EVENT_MASK.EV_ERR))
{
if (Marshal.GetLastWin32Error() == (int)WIN32_ERROR.ERROR_IO_PENDING)
sg.WaitOne();
else
throw new CommPortException("IO Error [002]");
throw new CommPortException("IO Error [001]");
}
eventMask = (uint)Marshal.ReadInt32(uMask);
if ((eventMask & Win32Com.EV_ERR) != 0)
if (!PInvoke.WaitCommEvent(_hPort, ref eventMask, &ov))
{
if (Marshal.GetLastWin32Error() == (int)WIN32_ERROR.ERROR_IO_PENDING)
{
sg.WaitOne();
}
else
{
throw new CommPortException("IO Error [002]");
}
}
if ((eventMask & COMM_EVENT_MASK.EV_ERR) != 0)
{
CLEAR_COMM_ERROR_FLAGS errs;
if (PInvoke.ClearCommError(_hPort, &errs, null))
{
var s = new StringBuilder("UART Error: ", 40);
if (((uint)errs & Win32Com.CE_FRAME) != 0) s = s.Append("Framing,");
if (((uint)errs & Win32Com.CE_IOE) != 0) s = s.Append("IO,");
if (((uint)errs & Win32Com.CE_OVERRUN) != 0) s = s.Append("Overrun,");
if (((uint)errs & Win32Com.CE_RXOVER) != 0) s = s.Append("Receive Overflow,");
if (((uint)errs & Win32Com.CE_RXPARITY) != 0) s = s.Append("Parity,");
if (((uint)errs & Win32Com.CE_TXFULL) != 0) s = s.Append("Transmit Overflow,");
StringBuilder s = new("UART Error: ", 40);
if (((uint)errs & (uint)CLEAR_COMM_ERROR_FLAGS.CE_FRAME) != 0)
{
s = s.Append("Framing,");
}
if (((uint)errs & PInvoke.CE_IOE) != 0)
{
s = s.Append("IO,");
}
if (((uint)errs & (uint)CLEAR_COMM_ERROR_FLAGS.CE_OVERRUN) != 0)
{
s = s.Append("Overrun,");
}
if (((uint)errs & (uint)CLEAR_COMM_ERROR_FLAGS.CE_RXOVER) != 0)
{
s = s.Append("Receive Overflow,");
}
if (((uint)errs & (uint)CLEAR_COMM_ERROR_FLAGS.CE_RXPARITY) != 0)
{
s = s.Append("Parity,");
}
if (((uint)errs & PInvoke.CE_TXFULL) != 0)
{
s = s.Append("Transmit Overflow,");
}
s.Length -= 1;
throw new CommPortException(s.ToString());
}
@ -433,17 +531,17 @@ public class SerialPort : IDisposable
throw new CommPortException("IO Error [003]");
}
if ((eventMask & Win32Com.EV_RXCHAR) != 0)
if ((eventMask & COMM_EVENT_MASK.EV_RXCHAR) != 0)
{
uint gotbytes;
uint gotBytes;
do
{
if (!Win32Com.ReadFile(_hPort.DangerousGetHandle(), buf, 1, out gotbytes, unmanagedOv))
if (!PInvoke.ReadFile(_hPort, buffer, &gotBytes, &ov))
{
if (Marshal.GetLastWin32Error() == (int)WIN32_ERROR.ERROR_IO_PENDING)
{
Win32Com.CancelIo(_hPort.DangerousGetHandle());
gotbytes = 0;
PInvoke.CancelIo(_hPort);
gotBytes = 0;
}
else
{
@ -451,32 +549,58 @@ public class SerialPort : IDisposable
}
}
if (gotbytes == 1) OnRxChar(buf[0]);
} while (gotbytes > 0);
if (gotBytes == 1)
{
OnRxChar(buffer[0]);
}
} while (gotBytes > 0);
}
if ((eventMask & Win32Com.EV_TXEMPTY) != 0) OnTxDone();
if ((eventMask & Win32Com.EV_BREAK) != 0) OnBreak();
if ((eventMask & COMM_EVENT_MASK.EV_TXEMPTY) != 0)
{
OnTxDone();
}
if ((eventMask & COMM_EVENT_MASK.EV_BREAK) != 0)
{
OnBreak();
}
MODEM_STATUS_FLAGS i = 0;
if ((eventMask & COMM_EVENT_MASK.EV_CTS) != 0)
{
i |= MODEM_STATUS_FLAGS.MS_CTS_ON;
}
if ((eventMask & COMM_EVENT_MASK.EV_DSR) != 0)
{
i |= MODEM_STATUS_FLAGS.MS_DSR_ON;
}
if ((eventMask & COMM_EVENT_MASK.EV_RLSD) != 0)
{
i |= MODEM_STATUS_FLAGS.MS_RLSD_ON;
}
if ((eventMask & COMM_EVENT_MASK.EV_RING) != 0)
{
i |= MODEM_STATUS_FLAGS.MS_RING_ON;
}
uint i = 0;
if ((eventMask & Win32Com.EV_CTS) != 0) i |= Win32Com.MS_CTS_ON;
if ((eventMask & Win32Com.EV_DSR) != 0) i |= Win32Com.MS_DSR_ON;
if ((eventMask & Win32Com.EV_RLSD) != 0) i |= Win32Com.MS_RLSD_ON;
if ((eventMask & Win32Com.EV_RING) != 0) i |= Win32Com.MS_RING_ON;
if (i != 0)
{
uint f;
if (!Win32Com.GetCommModemStatus(_hPort.DangerousGetHandle(), out f))
if (!PInvoke.GetCommModemStatus(_hPort, out MODEM_STATUS_FLAGS f))
{
throw new CommPortException("IO Error [005]");
}
OnStatusChange(new ModemStatus(i), new ModemStatus(f));
}
}
}
catch (Exception e)
{
if (uMask != IntPtr.Zero) Marshal.FreeHGlobal(uMask);
if (unmanagedOv != IntPtr.Zero) Marshal.FreeHGlobal(unmanagedOv);
if (!(e is ThreadAbortException))
if (e is not ThreadAbortException)
{
_rxException = e;
OnRxException(e);
@ -494,329 +618,24 @@ public class SerialPort : IDisposable
if (_online)
{
uint f;
if (Win32Com.GetHandleInformation(_hPort.DangerousGetHandle(), out f)) return true;
if (PInvoke.GetHandleInformation(_hPort, out uint _))
{
return true;
}
ThrowException("Offline");
return false;
}
if (_auto)
{
if (Open())
{
return true;
}
}
ThrowException("Offline");
return false;
}
#region Private fields
private readonly ManualResetEvent _writeEvent = new(false);
private bool _auto;
private bool _checkSends = true;
private Handshake _handShake;
private SafeFileHandle _hPort;
private bool _online;
private NativeOverlapped _ptrUwo;
private Exception _rxException;
private bool _rxExceptionReported;
private Thread _rxThread;
private int _stateBrk = 2;
private int _stateDtr = 2;
private int _stateRts = 2;
private int _writeCount;
#endregion
#region Public properties
/// <summary>
/// Class constructor
/// </summary>
public SerialPort(string portName)
{
PortName = portName;
}
/// <inheritdoc />
/// <summary>
/// Class constructor
/// </summary>
public SerialPort(string portName, int baudRate) : this(portName)
{
BaudRate = baudRate;
}
/// <summary>
/// If true, the port will automatically re-open on next send if it was previously closed due
/// to an error (default: false)
/// </summary>
public bool AutoReopen { get; set; }
/// <summary>
/// Baud Rate (default: 115200)
/// </summary>
/// <remarks>Unsupported rates will throw "Bad settings".</remarks>
public int BaudRate { get; set; } = 115200;
/// <summary>
/// If true, subsequent Send commands wait for completion of earlier ones enabling the results
/// to be checked. If false, errors, including timeouts, may not be detected, but performance
/// may be better.
/// </summary>
public bool CheckAllSends { get; set; } = true;
/// <summary>
/// Number of databits 1..8 (default: 8) unsupported values will throw "Bad settings"
/// </summary>
public int DataBits { get; set; } = 8;
/// <summary>
/// The parity checking scheme (default: none)
/// </summary>
public Parity Parity { get; set; } = Parity.None;
/// <summary>
/// If true, Xon and Xoff characters are sent to control the data flow from the remote station (default: false)
/// </summary>
public bool RxFlowX { get; set; }
/// <summary>
/// If true, received characters are ignored unless DSR is asserted by the remote station (default: false)
/// </summary>
public bool RxGateDsr { get; set; }
/// <summary>
/// The number of free bytes in the reception queue at which flow is disabled (default: 2048)
/// </summary>
public int RxHighWater { get; set; } = 2048;
/// <summary>
/// The number of bytes in the reception queue at which flow is re-enabled (default: 512)
/// </summary>
public int RxLowWater { get; set; } = 512;
/// <summary>
/// Requested size for receive queue (default: 0 = use operating system default)
/// </summary>
public int RxQueue { get; set; }
/// <summary>
/// Constant. Max time for Send in ms = (Multiplier * Characters) + Constant (default: 0)
/// </summary>
public int SendTimeoutConstant { get; set; }
/// <summary>
/// Multiplier. Max time for Send in ms = (Multiplier * Characters) + Constant
/// (default: 0 = No timeout)
/// </summary>
public int SendTimeoutMultiplier { get; set; }
/// <summary>
/// Number of stop bits (default: one)
/// </summary>
public StopBits StopBits { get; set; } = StopBits.One;
/// <summary>
/// If true, transmission is halted unless CTS is asserted by the remote station (default: false)
/// </summary>
public bool TxFlowCts { get; set; }
/// <summary>
/// If true, transmission is halted unless DSR is asserted by the remote station (default: false)
/// </summary>
public bool TxFlowDsr { get; set; }
/// <summary>
/// If true, transmission is halted when Xoff is received and restarted when Xon is received (default: false)
/// </summary>
public bool TxFlowX { get; set; }
/// <summary>
/// Requested size for transmit queue (default: 0 = use operating system default)
/// </summary>
public int TxQueue { get; set; }
/// <summary>
/// If false, transmission is suspended when this station has sent Xoff to the remote station (default: true)
/// Set false if the remote station treats any character as an Xon.
/// </summary>
public bool TxWhenRxXoff { get; set; } = true;
/// <summary>
/// Specidies the use to which the DTR output is put (default: none)
/// </summary>
public HsOutput UseDtr { get; set; } = HsOutput.None;
/// <summary>
/// Specifies the use to which the RTS output is put (default: none)
/// </summary>
public HsOutput UseRts { get; set; } = HsOutput.None;
/// <summary>
/// The character used to signal Xoff for X flow control (default: DC3)
/// </summary>
public ASCII XoffChar { get; set; } = ASCII.DC3;
/// <summary>
/// The character used to signal Xon for X flow control (default: DC1)
/// </summary>
public ASCII XonChar { get; set; } = ASCII.DC1;
/// <summary>
/// True if online.
/// </summary>
public bool Online => _online && CheckOnline();
/// <summary>
/// True if the RTS pin is controllable via the RTS property
/// </summary>
protected bool RtSavailable => _stateRts < 2;
/// <summary>
/// Set the state of the RTS modem control output
/// </summary>
protected bool Rts
{
set
{
if (_stateRts > 1) return;
CheckOnline();
if (value)
{
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.SETRTS))
_stateRts = 1;
else
ThrowException("Unexpected Failure");
}
else
{
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.CLRRTS))
_stateRts = 1;
else
ThrowException("Unexpected Failure");
}
}
get => _stateRts == 1;
}
/// <summary>
/// True if the DTR pin is controllable via the DTR property
/// </summary>
protected bool DtrAvailable => _stateDtr < 2;
/// <summary>
/// The state of the DTR modem control output
/// </summary>
protected bool Dtr
{
set
{
if (_stateDtr > 1) return;
CheckOnline();
if (value)
{
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.SETDTR))
_stateDtr = 1;
else
ThrowException("Unexpected Failure");
}
else
{
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.CLRDTR))
_stateDtr = 0;
else
ThrowException("Unexpected Failure");
}
}
get => _stateDtr == 1;
}
/// <summary>
/// Assert or remove a break condition from the transmission line
/// </summary>
protected bool Break
{
set
{
if (_stateBrk > 1) return;
CheckOnline();
if (value)
{
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.SETBREAK))
_stateBrk = 0;
else
ThrowException("Unexpected Failure");
}
else
{
if (Win32Com.EscapeCommFunction(_hPort.DangerousGetHandle(), Win32Com.CLRBREAK))
_stateBrk = 0;
else
ThrowException("Unexpected Failure");
}
}
get => _stateBrk == 1;
}
/// <summary>
/// Port Name
/// </summary>
public string PortName { get; set; }
public Handshake Handshake
{
get => _handShake;
set
{
_handShake = value;
switch (_handShake)
{
case Handshake.None:
TxFlowCts = false;
TxFlowDsr = false;
TxFlowX = false;
RxFlowX = false;
UseRts = HsOutput.Online;
UseDtr = HsOutput.Online;
TxWhenRxXoff = true;
RxGateDsr = false;
break;
case Handshake.XonXoff:
TxFlowCts = false;
TxFlowDsr = false;
TxFlowX = true;
RxFlowX = true;
UseRts = HsOutput.Online;
UseDtr = HsOutput.Online;
TxWhenRxXoff = true;
RxGateDsr = false;
XonChar = ASCII.DC1;
XoffChar = ASCII.DC3;
break;
case Handshake.CtsRts:
TxFlowCts = true;
TxFlowDsr = false;
TxFlowX = false;
RxFlowX = false;
UseRts = HsOutput.Handshake;
UseDtr = HsOutput.Online;
TxWhenRxXoff = true;
RxGateDsr = false;
break;
case Handshake.DsrDtr:
TxFlowCts = false;
TxFlowDsr = true;
TxFlowX = false;
RxFlowX = false;
UseRts = HsOutput.Online;
UseDtr = HsOutput.Handshake;
TxWhenRxXoff = true;
RxGateDsr = false;
break;
}
}
}
#endregion
}

91
Nefarius.Peripherals.SerialPort/Win32PInvoke/Win32Com.cs
View File

@ -1,91 +0,0 @@
using System;
using System.Runtime.InteropServices;
namespace Nefarius.Peripherals.SerialPort.Win32PInvoke
{
internal class Win32Com
{
[DllImport("kernel32.dll")]
internal static extern Boolean GetHandleInformation(IntPtr hObject, out UInt32 lpdwFlags);
[DllImport("kernel32.dll")]
internal static extern Boolean SetCommMask(IntPtr hFile, UInt32 dwEvtMask);
// Constants for dwEvtMask:
internal const UInt32 EV_RXCHAR = 0x0001;
internal const UInt32 EV_RXFLAG = 0x0002;
internal const UInt32 EV_TXEMPTY = 0x0004;
internal const UInt32 EV_CTS = 0x0008;
internal const UInt32 EV_DSR = 0x0010;
internal const UInt32 EV_RLSD = 0x0020;
internal const UInt32 EV_BREAK = 0x0040;
internal const UInt32 EV_ERR = 0x0080;
internal const UInt32 EV_RING = 0x0100;
internal const UInt32 EV_PERR = 0x0200;
internal const UInt32 EV_RX80FULL = 0x0400;
internal const UInt32 EV_EVENT1 = 0x0800;
internal const UInt32 EV_EVENT2 = 0x1000;
[DllImport("kernel32.dll", SetLastError = true)]
internal static extern Boolean WaitCommEvent(IntPtr hFile, IntPtr lpEvtMask, IntPtr lpOverlapped);
[DllImport("kernel32.dll")]
internal static extern Boolean CancelIo(IntPtr hFile);
[DllImport("kernel32.dll", SetLastError = true)]
internal static extern Boolean ReadFile(IntPtr hFile, [Out] Byte[] lpBuffer, UInt32 nNumberOfBytesToRead,
out UInt32 nNumberOfBytesRead, IntPtr lpOverlapped);
[DllImport("kernel32.dll")]
internal static extern Boolean TransmitCommChar(IntPtr hFile, Byte cChar);
/// <summary>
/// Control port functions.
/// </summary>
[DllImport("kernel32.dll")]
internal static extern Boolean EscapeCommFunction(IntPtr hFile, UInt32 dwFunc);
// Constants for dwFunc:
internal const UInt32 SETXOFF = 1;
internal const UInt32 SETXON = 2;
internal const UInt32 SETRTS = 3;
internal const UInt32 CLRRTS = 4;
internal const UInt32 SETDTR = 5;
internal const UInt32 CLRDTR = 6;
internal const UInt32 RESETDEV = 7;
internal const UInt32 SETBREAK = 8;
internal const UInt32 CLRBREAK = 9;
[DllImport("kernel32.dll")]
internal static extern Boolean GetCommModemStatus(IntPtr hFile, out UInt32 lpModemStat);
// Constants for lpModemStat:
internal const UInt32 MS_CTS_ON = 0x0010;
internal const UInt32 MS_DSR_ON = 0x0020;
internal const UInt32 MS_RING_ON = 0x0040;
internal const UInt32 MS_RLSD_ON = 0x0080;
/// <summary>
/// Status Functions.
/// </summary>
[DllImport("kernel32.dll", SetLastError = true)]
internal static extern Boolean GetOverlappedResult(IntPtr hFile, IntPtr lpOverlapped,
out UInt32 nNumberOfBytesTransferred, Boolean bWait);
//Constants for lpErrors:
internal const UInt32 CE_RXOVER = 0x0001;
internal const UInt32 CE_OVERRUN = 0x0002;
internal const UInt32 CE_RXPARITY = 0x0004;
internal const UInt32 CE_FRAME = 0x0008;
internal const UInt32 CE_BREAK = 0x0010;
internal const UInt32 CE_TXFULL = 0x0100;
internal const UInt32 CE_PTO = 0x0200;
internal const UInt32 CE_IOE = 0x0400;
internal const UInt32 CE_DNS = 0x0800;
internal const UInt32 CE_OOP = 0x1000;
internal const UInt32 CE_MODE = 0x8000;
}
}

9
nuget.config Normal file
View File

@ -0,0 +1,9 @@
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<packageSources>
<clear />
<add key="nuget" value="https://api.nuget.org/v3/index.json" />
<add key="baget.nefarius.at" value="https://baget.nefarius.at/v3/index.json" protocolVersion="3" />
<add key="Nightly" value="https://pkgs.dev.azure.com/azure-public/winsdk/_packaging/CI/nuget/v3/index.json" />
</packageSources>
</configuration>