git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@25 35acf78f-673a-0410-8e92-d51de3d6d3f4
gdisirio
parent
95b238fc86
commit
9a0ef300bc
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@ -23,7 +23,7 @@
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#include "lpc214x_serial.h"
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#include "buzzer.h"
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static BYTE8 waThread1[UserStackSize(16)];
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static BYTE8 waThread1[UserStackSize(32)];
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static t_msg Thread1(void *arg) {
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@ -40,7 +40,7 @@ static t_msg Thread1(void *arg) {
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return 0;
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}
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static BYTE8 waThread2[UserStackSize(16)];
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static BYTE8 waThread2[UserStackSize(32)];
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static t_msg Thread2(void *arg) {
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@ -53,7 +53,7 @@ static t_msg Thread2(void *arg) {
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return 0;
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}
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static BYTE8 waThread3[UserStackSize(16)];
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static BYTE8 waThread3[UserStackSize(32)];
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static t_msg Thread3(void *arg) {
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@ -4,7 +4,7 @@
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# Project related configuration options
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#---------------------------------------------------------------------------
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PROJECT_NAME = ChibiOS/RT
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PROJECT_NUMBER = "0.2.1 alpha"
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PROJECT_NUMBER = "0.3.0 beta"
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OUTPUT_DIRECTORY = .
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CREATE_SUBDIRS = NO
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OUTPUT_LANGUAGE = English
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@ -26,7 +26,7 @@ ALWAYS_DETAILED_SEC = NO
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INLINE_INHERITED_MEMB = NO
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FULL_PATH_NAMES = NO
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STRIP_FROM_PATH = "C:/Documents and Settings/Administrator/"
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STRIP_FROM_INC_PATH =
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STRIP_FROM_INC_PATH =
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SHORT_NAMES = NO
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JAVADOC_AUTOBRIEF = YES
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MULTILINE_CPP_IS_BRIEF = NO
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@ -34,7 +34,7 @@ DETAILS_AT_TOP = YES
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INHERIT_DOCS = NO
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SEPARATE_MEMBER_PAGES = NO
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TAB_SIZE = 2
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ALIASES =
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ALIASES =
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OPTIMIZE_OUTPUT_FOR_C = YES
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OPTIMIZE_OUTPUT_JAVA = NO
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BUILTIN_STL_SUPPORT = NO
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@ -64,11 +64,11 @@ GENERATE_TODOLIST = YES
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GENERATE_TESTLIST = YES
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GENERATE_BUGLIST = YES
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GENERATE_DEPRECATEDLIST= YES
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ENABLED_SECTIONS =
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ENABLED_SECTIONS =
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MAX_INITIALIZER_LINES = 30
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SHOW_USED_FILES = NO
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SHOW_DIRECTORIES = NO
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FILE_VERSION_FILTER =
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FILE_VERSION_FILTER =
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#---------------------------------------------------------------------------
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# configuration options related to warning and progress messages
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#---------------------------------------------------------------------------
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@ -78,7 +78,7 @@ WARN_IF_UNDOCUMENTED = YES
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WARN_IF_DOC_ERROR = YES
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WARN_NO_PARAMDOC = NO
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WARN_FORMAT = "$file:$line: $text"
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WARN_LOGFILE =
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WARN_LOGFILE =
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#---------------------------------------------------------------------------
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# configuration options related to the input files
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#---------------------------------------------------------------------------
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@ -115,15 +115,15 @@ FILE_PATTERNS = *.c \
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*.py \
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*.ddf
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RECURSIVE = YES
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EXCLUDE =
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EXCLUDE =
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EXCLUDE_SYMLINKS = NO
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EXCLUDE_PATTERNS =
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EXAMPLE_PATH =
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EXCLUDE_PATTERNS =
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EXAMPLE_PATH =
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EXAMPLE_PATTERNS = *
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EXAMPLE_RECURSIVE = NO
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IMAGE_PATH =
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INPUT_FILTER =
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FILTER_PATTERNS =
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IMAGE_PATH = ./img
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INPUT_FILTER =
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FILTER_PATTERNS =
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FILTER_SOURCE_FILES = NO
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#---------------------------------------------------------------------------
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# configuration options related to source browsing
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@ -141,20 +141,20 @@ VERBATIM_HEADERS = NO
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#---------------------------------------------------------------------------
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ALPHABETICAL_INDEX = NO
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COLS_IN_ALPHA_INDEX = 5
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IGNORE_PREFIX =
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IGNORE_PREFIX =
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#---------------------------------------------------------------------------
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# configuration options related to the HTML output
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#---------------------------------------------------------------------------
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GENERATE_HTML = YES
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HTML_OUTPUT = html
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HTML_FILE_EXTENSION = .html
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HTML_HEADER =
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HTML_FOOTER =
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HTML_STYLESHEET =
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HTML_HEADER =
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HTML_FOOTER =
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HTML_STYLESHEET =
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HTML_ALIGN_MEMBERS = YES
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GENERATE_HTMLHELP = NO
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CHM_FILE =
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HHC_LOCATION =
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CHM_FILE =
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HHC_LOCATION =
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GENERATE_CHI = NO
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BINARY_TOC = NO
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TOC_EXPAND = NO
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@ -171,8 +171,8 @@ LATEX_CMD_NAME = latex
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MAKEINDEX_CMD_NAME = makeindex
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COMPACT_LATEX = NO
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PAPER_TYPE = a4wide
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EXTRA_PACKAGES =
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LATEX_HEADER =
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EXTRA_PACKAGES =
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LATEX_HEADER =
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PDF_HYPERLINKS = NO
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USE_PDFLATEX = NO
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LATEX_BATCHMODE = NO
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@ -184,8 +184,8 @@ GENERATE_RTF = NO
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RTF_OUTPUT = rtf
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COMPACT_RTF = NO
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RTF_HYPERLINKS = NO
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RTF_STYLESHEET_FILE =
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RTF_EXTENSIONS_FILE =
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RTF_STYLESHEET_FILE =
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RTF_EXTENSIONS_FILE =
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#---------------------------------------------------------------------------
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# configuration options related to the man page output
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#---------------------------------------------------------------------------
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@ -198,8 +198,8 @@ MAN_LINKS = NO
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#---------------------------------------------------------------------------
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GENERATE_XML = NO
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XML_OUTPUT = xml
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XML_SCHEMA =
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XML_DTD =
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XML_SCHEMA =
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XML_DTD =
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XML_PROGRAMLISTING = YES
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#---------------------------------------------------------------------------
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# configuration options for the AutoGen Definitions output
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@ -211,16 +211,16 @@ GENERATE_AUTOGEN_DEF = NO
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GENERATE_PERLMOD = NO
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PERLMOD_LATEX = NO
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PERLMOD_PRETTY = YES
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PERLMOD_MAKEVAR_PREFIX =
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PERLMOD_MAKEVAR_PREFIX =
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#---------------------------------------------------------------------------
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# Configuration options related to the preprocessor
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# Configuration options related to the preprocessor
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#---------------------------------------------------------------------------
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ENABLE_PREPROCESSING = YES
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MACRO_EXPANSION = NO
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EXPAND_ONLY_PREDEF = NO
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SEARCH_INCLUDES = YES
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INCLUDE_PATH =
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INCLUDE_FILE_PATTERNS =
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INCLUDE_PATH =
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INCLUDE_FILE_PATTERNS =
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PREDEFINED = __JUST_STUBS__ \
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__DOXIGEN__ \
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CH_USE_VIRTUAL_TIMERS \
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CH_USE_MESSAGES \
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CH_USE_MESSAGES_TIMEOUT \
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CH_USE_MESSAGES_EVENT
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EXPAND_AS_DEFINED =
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EXPAND_AS_DEFINED =
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SKIP_FUNCTION_MACROS = YES
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#---------------------------------------------------------------------------
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# Configuration::additions related to external references
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# Configuration::additions related to external references
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#---------------------------------------------------------------------------
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TAGFILES =
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GENERATE_TAGFILE =
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TAGFILES =
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GENERATE_TAGFILE =
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ALLEXTERNALS = NO
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EXTERNAL_GROUPS = YES
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PERL_PATH = /usr/bin/perl
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#---------------------------------------------------------------------------
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# Configuration options related to the dot tool
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# Configuration options related to the dot tool
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#---------------------------------------------------------------------------
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CLASS_DIAGRAMS = NO
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HIDE_UNDOC_RELATIONS = YES
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@ -270,8 +270,8 @@ CALLER_GRAPH = NO
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GRAPHICAL_HIERARCHY = YES
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DIRECTORY_GRAPH = YES
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DOT_IMAGE_FORMAT = png
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DOT_PATH =
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DOTFILE_DIRS =
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DOT_PATH =
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DOTFILE_DIRS =
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MAX_DOT_GRAPH_WIDTH = 1024
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MAX_DOT_GRAPH_HEIGHT = 1024
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MAX_DOT_GRAPH_DEPTH = 1000
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@ -280,6 +280,6 @@ DOT_MULTI_TARGETS = NO
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GENERATE_LEGEND = YES
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DOT_CLEANUP = YES
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#---------------------------------------------------------------------------
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# Configuration::additions related to the search engine
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# Configuration::additions related to the search engine
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#---------------------------------------------------------------------------
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SEARCHENGINE = NO
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69
docs/ch.txt
69
docs/ch.txt
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@ -47,8 +47,77 @@
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* memory image.</li>
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* <li>Almost totally written in C with little ASM code required for ports.</li>
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* </ul>
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*
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* ChibiOS/RT architecture:<br><br>
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* @subpage Concepts
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*/
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/**
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* @page Concepts Concepts
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* @{
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* @section naming Naming Conventions
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* ChibiOS/RT APIs are all named following this convention:
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* \a ch\<group\>\<action\>\<suffix\>().
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* The possible groups are: \a Sys, \a Sch, \a VT, \a Thd, \a Sem, \a Evt,
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* \a Msg, \a IQ, \a OQ, \a HQ,\a FDD, \a HDD.
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* The suffix is not present for normal APIs but can be one of
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* the following: "I" for APIs meant to be invoked from an interrupt handler
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* or within the system mutex zone but not from user code, "S" for APIs only
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* useable from within the system mutex zone but not from interrupt handlers
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* or user code. The APIs without suffix can be invoked only from the user
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* code.<br>
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* Examples: \p chThdCreate(), \p chSemSignalI(), \p chIQGetTimeout().
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*
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* @section scheduling Scheduling
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* The strategy is very simple the currently ready thread with the highest
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* priority is executed. If more than one thread with equal priority are
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* eligible for execution then they are executed in a round-robin way, the
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* CPU time slice constant is configurable. The ready list is a double linked
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* list of threads ordered by priority.
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* @image html readylist.png
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* Note that the currently running thread is not in the ready list, the list
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* only contains the threads ready to be executed but still actually waiting.
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*
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* @section warea Thread Working Area
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* Each thread has its own stack, a Thread structure and a registers dump
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* structure. All the structures are allocated into a "Thread working area",
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* a thread private heap, usually allocated in a char array declared in your
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* code, there is not a central threads table or list, this means you can
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* have as many threads you want as long you have enough available RAM
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* memory. The threads do not use any memory outside the allocated working
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* area.<br>
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* @image html workspace.png
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* <br>
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* Note that the registers dump is only present when the Thread is not
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* running, the context switching is done by pushing the registers on the
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* stack of the switched-out thread and popping the registers of the
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* switched-in thread from its stack.
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*
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* @section sysmutex System Mutex Zone
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* It is the code within the OS that cannot be preempted, this code is
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* everything between the \p chSysLock() and \p chSysUnlock() API calls.
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* The implementation of the APIs in most cases just enables/disables the
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* interrupts. Of course the code in the system mutex zone must be as short
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* and efficient possible as it affects the RT performance of the whole
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* system. The worst case response time is affected by the longest code
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* path in the system mutex zone or interrupt handler.
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* @code
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* // User code, not critical, preemption possible.
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* chSysLock();
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* ...
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* // System critical code, preemption delayed.
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* ...
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* chSysUnlock();
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* // User code, preemption possible again.
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* @endcode
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* Applications usually do not need to put code into the system mutex zone
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* unless you are implementing device drivers or special synchronization
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* primitives, everything else can be implemented by using semaphores,
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* messages or events.
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*/
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/** @} */
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/**
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* @defgroup Kernel Kernel
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* @{
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After Width: | Height: | Size: 14 KiB |
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@ -32,6 +32,15 @@ LPC214x-GCC - ChibiOS/RT port for ARM7 LPC2148, the demo targets the
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*** Releases ***
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*****************************************************************************
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*** 0.3.0 ***
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- ChibiOS/RT goes beta.
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- Diet for the threads code, some simple APIs become macros.
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- Thread Local Storage implemented as a single API: chThdLS().
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The API simply returns a pointer into the thread working area, see the
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documentation on the web site.
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- Moved some documentation and images from the web site into the Doxigen
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generated HTMLs.
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*** 0.2.1 ***
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- Optimizations in the RT semaphores subsystem. The support for this
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subsystem should still be considered experimental and further changes may
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@ -62,11 +62,11 @@ t_time chSysGetTime(void) {
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* option is enabled in \p chconf.h.
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*/
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void chThdSleepUntil(t_time time) {
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VirtualTimer t;
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VirtualTimer vt;
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chSysLock();
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chVTSetI(&t, (t_time)(time - stime), (t_vtfunc)chSchReadyI, currp);
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chVTSetI(&vt, (t_time)(time - stime), (t_vtfunc)chSchReadyI, currp);
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chSchGoSleepI(PRSLEEP);
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chSysUnlock();
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@ -129,17 +129,6 @@ Thread *chThdCreate(t_prio prio, t_tmode mode, void *workspace,
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return tp;
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}
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/**
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* Verifies if the specified thread is in the \p PREXIT state.
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* @param tp the pointer to the thread
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* @return \p TRUE if the thread is ended else \p FALSE. \p TRUE ensures that
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* a subsequent call to \p chThdWait() would not block.
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*/
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BOOL chThdTerminated(Thread *tp) {
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return tp->p_state == PREXIT;
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}
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#ifdef CH_USE_RESUME
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/**
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* Resumes a thread created with the \p P_SUSPENDED option.
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@ -176,17 +165,6 @@ void chThdTerminate(Thread *tp) {
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chSysUnlock();
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}
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/**
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* Verifies if the current thread has a termination request pending.
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* @return \p TRUE if the termination was requested. The thread should terminate
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* as soon it is ready to do so.
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*/
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BOOL chThdShouldTerminate(void) {
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return currp->p_flags & P_TERMINATE ? TRUE : FALSE;
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}
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#endif
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/**
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@ -234,31 +212,4 @@ t_msg chThdWait(Thread *tp) {
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}
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#endif /* CH_USE_WAITEXIT */
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#ifdef CH_USE_EXIT_EVENT
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/**
|
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* Returns the exit event source for the specified thread. The source is
|
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* signaled when the thread terminates.
|
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* @param tp the pointer to the thread
|
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* @note When registering on a thread termination make sure the thread
|
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* is still alive, if you do that after the thread termination
|
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* then you would miss the event. There are two ways to ensure
|
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* this:<br>
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* <ul>
|
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* <li>Create the thread suspended, register on the event source
|
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* and then resume the thread (recommended).</li>
|
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* <li>Create the thread with a lower priority then register on it.
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* This does not work if the hardware is capable of multiple
|
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* physical threads.</li>
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* </ul>
|
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* @note You dont need to unregister from a terminated thread because
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* the event source becomes inactive.
|
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* @note The function is available only if the \p CH_USE_EXIT_EVENT
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* option is enabled in \p chconf.h.
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*/
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EventSource *chThdGetExitEventSource(Thread *tp) {
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|
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return &tp->p_exitesource;
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}
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#endif /* CH_USE_EXIT_EVENT */
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/** @} */
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|
|
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|
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@ -182,19 +182,55 @@ static INLINE void enqueue(Thread *tp, ThreadsQueue *tqp) {
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/*
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* Threads APIs.
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*/
|
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#define chThdSelf() currp
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Thread *chThdCreate(t_prio prio, t_tmode mode, void *workspace,
|
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t_size wsize, t_tfunc pf, void *arg);
|
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void chThdResume(Thread *tp);
|
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void chThdTerminate(Thread *tp);
|
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BOOL chThdShouldTerminate(void);
|
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BOOL chThdTerminated(Thread *tp);
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void chThdExit(t_msg msg);
|
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|
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/** Returns the pointer to the \p Thread currently in execution.*/
|
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#define chThdSelf() currp
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|
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/** Returns the pointer to the \p Thread local storage area, if any.*/
|
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#define chThdLS() (void *)(currp + 1)
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|
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/** Verifies if the specified thread is in the \p PREXIT state.*/
|
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#define chThdTerminated(tp) ((tp)->p_state == PREXIT)
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|
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#ifdef CH_USE_TERMINATE
|
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/**
|
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* Verifies if the current thread has a termination request pending.
|
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*/
|
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#define chThdShouldTerminate() (currp->p_flags & P_TERMINATE)
|
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|
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void chThdTerminate(Thread *tp);
|
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#endif
|
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|
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#ifdef CH_USE_WAITEXIT
|
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t_msg chThdWait(Thread *tp);
|
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#endif
|
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|
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#ifdef CH_USE_EXIT_EVENT
|
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EventSource *chThdGetExitEventSource(Thread *tp);
|
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/**
|
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* Returns the exit event source for the specified thread. The source is
|
||||
* signaled when the thread terminates.
|
||||
* @param tp the pointer to the thread
|
||||
* @note When registering on a thread termination make sure the thread
|
||||
* is still alive, if you do that after the thread termination
|
||||
* then you would miss the event. There are two ways to ensure
|
||||
* this:<br>
|
||||
* <ul>
|
||||
* <li>Create the thread suspended, register on the event source
|
||||
* and then resume the thread (recommended).</li>
|
||||
* <li>Create the thread with a lower priority then register on it.
|
||||
* This does not work if the hardware is capable of multiple
|
||||
* physical threads.</li>
|
||||
* </ul>
|
||||
* @note You dont need to unregister from a terminated thread because
|
||||
* the event source becomes inactive.
|
||||
* @note The function is available only if the \p CH_USE_EXIT_EVENT
|
||||
* option is enabled in \p chconf.h.
|
||||
*/
|
||||
#define chThdGetExitEventSource(tp) (&(tp)->p_exitesource)
|
||||
#endif
|
||||
|
||||
#endif /* _THREADS_H_ */
|
||||
|
|
|
|||
|
|
@ -37,7 +37,7 @@
|
|||
void chSysPause(void) {}
|
||||
|
||||
/**
|
||||
* Abonormal system termination handler. Invoked by the ChobiOS/RT when an
|
||||
* Abonormal system termination handler. Invoked by the ChibiOS/RT when an
|
||||
* abnormal unrecoverable condition is met.
|
||||
*/
|
||||
void chSysHalt(void) {}
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@ struct stackregs {
|
|||
}
|
||||
|
||||
/**
|
||||
* Enters the ChobiOS/RT system mutual exclusion zone, the implementation is
|
||||
* Enters the ChibiOS/RT system mutual exclusion zone, the implementation is
|
||||
* architecture dependent, on single core systems usually this function
|
||||
* just disables the interrupts.
|
||||
* @note The code in the system mutual exclusion zone must be as light and
|
||||
|
|
@ -50,7 +50,7 @@ struct stackregs {
|
|||
#define chSysLock()
|
||||
|
||||
/**
|
||||
* Leaves the ChobiOS/RT system mutual exclusion zone, the implementation is
|
||||
* Leaves the ChibiOS/RT system mutual exclusion zone, the implementation is
|
||||
* architecture dependent, on single core systems usually this function
|
||||
* just enables the interrupts.
|
||||
* @note The code in the system mutual exclusion zone must be as light and
|
||||
|
|
|
|||
Loading…
Reference in New Issue