# Doxyfile 1.3.8 # This file describes the settings to be used by the documentation system # doxygen (www.doxygen.org) for a project # # All text after a hash (#) is considered a comment and will be ignored # The format is: # TAG = value [value, ...] # For lists items can also be appended using: # TAG += value [value, ...] # Values that contain spaces should be placed between quotes (" ") #--------------------------------------------------------------------------- # Project related configuration options #--------------------------------------------------------------------------- # The PROJECT_NAME tag is a single word (or a sequence of words surrounded # by quotes) that should identify the project. PROJECT_NAME = "Direct Rendering Module" # The PROJECT_NUMBER tag can be used to enter a project or revision number. # This could be handy for archiving the generated documentation or # if some version control system is used. PROJECT_NUMBER = # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) # base path where the generated documentation will be put. # If a relative path is entered, it will be relative to the location # where doxygen was started. If left blank the current directory will be used. OUTPUT_DIRECTORY = # If the CREATE_SUBDIRS tag is set to YES, then doxygen will create # 4096 sub-directories (in 2 levels) under the output directory of each output # format and will distribute the generated files over these directories. # Enabling this option can be useful when feeding doxygen a huge amount of source # files, where putting all generated files in the same directory would otherwise # cause performance problems for the file system. CREATE_SUBDIRS = NO # The OUTPUT_LANGUAGE tag is used to specify the language in which all # documentation generated by doxygen is written. Doxygen will use this # information to generate all constant output in the proper language. # The default language is English, other supported languages are: # Brazilian, Catalan, Chinese, Chinese-Traditional, Croatian, Czech, Danish, # Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, # Japanese-en (Japanese with English messages), Korean, Korean-en, Norwegian, # Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovene, Spanish, # Swedish, and Ukrainian. OUTPUT_LANGUAGE = English # This tag can be used to specify the encoding used in the generated output. # The encoding is not always determined by the language that is chosen, # but also whether or not the output is meant for Windows or non-Windows users. # In case there is a difference, setting the USE_WINDOWS_ENCODING tag to YES # forces the Windows encoding (this is the default for the Windows binary), # whereas setting the tag to NO uses a Unix-style encoding (the default for # all platforms other than Windows). USE_WINDOWS_ENCODING = NO # If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will # include brief member descriptions after the members that are listed in # the file and class documentation (similar to JavaDoc). # Set to NO to disable this. BRIEF_MEMBER_DESC = YES # If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend # the brief description of a member or function before the detailed description. # Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the # brief descriptions will be completely suppressed. REPEAT_BRIEF = YES # This tag implements a quasi-intelligent brief description abbreviator # that is used to form the text in various listings. Each string # in this list, if found as the leading text of the brief description, will be # stripped from the text and the result after processing the whole list, is used # as the annotated text. Otherwise, the brief description is used as-is. If left # blank, the following values are used ("$name" is automatically replaced with the # name of the entity): "The $name class" "The $name widget" "The $name file" # "is" "provides" "specifies" "contains" "represents" "a" "an" "the" ABBREVIATE_BRIEF = # If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then # Doxygen will generate a detailed section even if there is only a brief # description. ALWAYS_DETAILED_SEC = NO # If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all inherited # members of a class in the documentation of that class as if those members were # ordinary class members. Constructors, destructors and assignment operators of # the base classes will not be shown. INLINE_INHERITED_MEMB = NO # If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full # path before files name in the file list and in the header files. If set # to NO the shortest path that makes the file name unique will be used. FULL_PATH_NAMES = NO # If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag # can be used to strip a user-defined part of the path. Stripping is # only done if one of the specified strings matches the left-hand part of # the path. The tag can be used to show relative paths in the file list. # If left blank the directory from which doxygen is run is used as the # path to strip. STRIP_FROM_PATH = # The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of # the path mentioned in the documentation of a class, which tells # the reader which header file to include in order to use a class. # If left blank only the name of the header file containing the class # definition is used. Otherwise one should specify the include paths that # are normally passed to the compiler using the -I flag. STRIP_FROM_INC_PATH = # If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter # (but less readable) file names. This can be useful is your file systems # doesn't support long names like on DOS, Mac, or CD-ROM. SHORT_NAMES = NO # If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen # will interpret the first line (until the first dot) of a JavaDoc-style # comment as the brief description. If set to NO, the JavaDoc # comments will behave just like the Qt-style comments (thus requiring an # explicit @brief command for a brief description. JAVADOC_AUTOBRIEF = YES # The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen # treat a multi-line C++ special comment block (i.e. a block of //! or /// # comments) as a brief description. This used to be the default behaviour. # The new default is to treat a multi-line C++ comment block as a detailed # description. Set this tag to YES if you prefer the old behaviour instead. MULTILINE_CPP_IS_BRIEF = NO # If the DETAILS_AT_TOP tag is set to YES then Doxygen # will output the detailed description near the top, like JavaDoc. # If set to NO, the detailed description appears after the member # documentation. DETAILS_AT_TOP = YES # If the INHERIT_DOCS tag is set to YES (the default) then an undocumented # member inherits the documentation from any documented member that it # re-implements. INHERIT_DOCS = YES # If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC # tag is set to YES, then doxygen will reuse the documentation of the first # member in the group (if any) for the other members of the group. By default # all members of a group must be documented explicitly. DISTRIBUTE_GROUP_DOC = NO # The TAB_SIZE tag can be used to set the number of spaces in a tab. # Doxygen uses this value to replace tabs by spaces in code fragments. TAB_SIZE = 8 # This tag can be used to specify a number of aliases that acts # as commands in the documentation. An alias has the form "name=value". # For example adding "sideeffect=\par Side Effects:\n" will allow you to # put the command \sideeffect (or @sideeffect) in the documentation, which # will result in a user-defined paragraph with heading "Side Effects:". # You can put \n's in the value part of an alias to insert newlines. ALIASES = # Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources # only. Doxygen will then generate output that is more tailored for C. # For instance, some of the names that are used will be different. The list # of all members will be omitted, etc. OPTIMIZE_OUTPUT_FOR_C = YES # Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java sources # only. Doxygen will then generate output that is more tailored for Java. # For instance, namespaces will be presented as packages, qualified scopes # will look different, etc. OPTIMIZE_OUTPUT_JAVA = NO # Set the SUBGROUPING tag to YES (the default) to allow class member groups of # the same type (for instance a group of public functions) to be put as a # subgroup of that type (e.g. under the Public Functions section). Set it to # NO to prevent subgrouping. Alternatively, this can be done per class using # the \nosubgrouping command. SUBGROUPING = YES #--------------------------------------------------------------------------- # Build related configuration options #--------------------------------------------------------------------------- # If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in # documentation are documented, even if no documentation was available. # Private class members and static file members will be hidden unless # the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES EXTRACT_ALL = NO # If the EXTRACT_PRIVATE tag is set to YES all private members of a class # will be included in the documentation. EXTRACT_PRIVATE = YES # If the EXTRACT_STATIC tag is set to YES all static members of a file # will be included in the documentation. EXTRACT_STATIC = YES # If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) # defined locally in source files will be included in the documentation. # If set to NO only classes defined in header files are included. EXTRACT_LOCAL_CLASSES = YES # This flag is only useful for Objective-C code. When set to YES local # methods, which are defined in the implementation section but not in # the interface are included in the documentation. # If set to NO (the default) only methods in the interface are included. EXTRACT_LOCAL_METHODS = NO # If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all # undocumented members of documented classes, files or namespaces. # If set to NO (the default) these members will be included in the # various overviews, but no documentation section is generated. # This option has no effect if EXTRACT_ALL is enabled. HIDE_UNDOC_MEMBERS = NO # If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all # undocumented classes that are normally visible in the class hierarchy. # If set to NO (the default) these classes will be included in the various # overviews. This option has no effect if EXTRACT_ALL is enabled. HIDE_UNDOC_CLASSES = NO # If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all # friend (class|struct|union) declarations. # If set to NO (the default) these declarations will be included in the # documentation. HIDE_FRIEND_COMPOUNDS = NO # If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any # documentation blocks found inside the body of a function. # If set to NO (the default) these blocks will be appended to the # function's detailed documentation block. HIDE_IN_BODY_DOCS = NO # The INTERNAL_DOCS tag determines if documentation # that is typed after a \internal command is included. If the tag is set # to NO (the default) then the documentation will be excluded. # Set it to YES to include the internal documentation. INTERNAL_DOCS = NO # If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate # file names in lower-case letters. If set to YES upper-case letters are also # allowed. This is useful if you have classes or files whose names only differ # in case and if your file system supports case sensitive file names. Windows # and Mac users are advised to set this option to NO. CASE_SENSE_NAMES = YES # If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen # will show members with their full class and namespace scopes in the # documentation. If set to YES the scope will be hidden. HIDE_SCOPE_NAMES = NO # If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen # will put a list of the files that are included by a file in the documentation # of that file. SHOW_INCLUDE_FILES = NO # If the INLINE_INFO tag is set to YES (the default) then a tag [inline] # is inserted in the documentation for inline members. INLINE_INFO = YES # If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen # will sort the (detailed) documentation of file and class members # alphabetically by member name. If set to NO the members will appear in # declaration order. SORT_MEMBER_DOCS = NO # If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the # brief documentation of file, namespace and class members alphabetically # by member name. If set to NO (the default) the members will appear in # declaration order. SORT_BRIEF_DOCS = NO # If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be # sorted by fully-qualified names, including namespaces. If set to # NO (the default), the class list will be sorted only by class name, # not including the namespace part. # Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES. # Note: This option applies only to the class list, not to the # alphabetical list. SORT_BY_SCOPE_NAME = NO # The GENERATE_TODOLIST tag can be used to enable (YES) or # disable (NO) the todo list. This list is created by putting \todo # commands in the documentation. GENERATE_TODOLIST = YES # The GENERATE_TESTLIST tag can be used to enable (YES) or # disable (NO) the test list. This list is created by putting \test # commands in the documentation. GENERATE_TESTLIST = YES # The GENERATE_BUGLIST tag can be used to enable (YES) or # disable (NO) the bug list. This list is created by putting \bug # commands in the documentation. GENERATE_BUGLIST = YES # The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or # disable (NO) the deprecated list. This list is created by putting # \deprecated commands in the documentation. GENERATE_DEPRECATEDLIST= YES # The ENABLED_SECTIONS tag can be used to enable conditional # documentation sections, marked by \if sectionname ... \endif. ENABLED_SECTIONS = # The MAX_INITIALIZER_LINES tag determines the maximum number of lines # the initial value of a variable or define consists of for it to appear in # the documentation. If the initializer consists of more lines than specified # here it will be hidden. Use a value of 0 to hide initializers completely. # The appearance of the initializer of individual variables and defines in the # documentation can be controlled using \showinitializer or \hideinitializer # command in the documentation regardless of this setting. MAX_INITIALIZER_LINES = 30 # Set the SHOW_USED_FILES tag to NO to disable the list of files generated # at the bottom of the documentation of classes and structs. If set to YES the # list will mention the files that were used to generate the documentation. SHOW_USED_FILES = YES #--------------------------------------------------------------------------- # configuration options related to warning and progress messages #--------------------------------------------------------------------------- # The QUIET tag can be used to turn on/off the messages that are generated # by doxygen. Possible values are YES and NO. If left blank NO is used. QUIET = YES # The WARNINGS tag can be used to turn on/off the warning messages that are # generated by doxygen. Possible values are YES and NO. If left blank # NO is used. WARNINGS = YES # If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings # for undocumented members. If EXTRACT_ALL is set to YES then this flag will # automatically be disabled. WARN_IF_UNDOCUMENTED = NO # If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for # potential errors in the documentation, such as not documenting some # parameters in a documented function, or documenting parameters that # don't exist or using markup commands wrongly. WARN_IF_DOC_ERROR = YES # The WARN_FORMAT tag determines the format of the warning messages that # doxygen can produce. The string should contain the $file, $line, and $text # tags, which will be replaced by the file and line number from which the # warning originated and the warning text. WARN_FORMAT = "$file:$line: $text" # The WARN_LOGFILE tag can be used to specify a file to which warning # and error messages should be written. If left blank the output is written # to stderr. WARN_LOGFILE = #--------------------------------------------------------------------------- # configuration options related to the input files #--------------------------------------------------------------------------- # The INPUT tag can be used to specify the files and/or directories that contain # documented source files. You may enter file names like "myfile.cpp" or # directories like "/usr/src/myproject". Separate the files or directories # with spaces. INPUT = . \ ../shared-core # If the value of the INPUT tag contains directories, you can use the # FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp # and *.h) to filter out the source-files in the directories. If left # blank the following patterns are tested: # *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx *.hpp # *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm FILE_PATTERNS = *.c \ *.h # The RECURSIVE tag can be used to turn specify whether or not subdirectories # should be searched for input files as well. Possible values are YES and NO. # If left blank NO is used. RECURSIVE = NO # The EXCLUDE tag can be used to specify files and/or directories that should # excluded from the INPUT source files. This way you can easily exclude a # subdirectory from a directory tree whose root is specified with the INPUT tag. EXCLUDE = # The EXCLUDE_SYMLINKS tag can be used select whether or not files or directories # that are symbolic links (a Unix filesystem feature) are excluded from the input. EXCLUDE_SYMLINKS = YES # If the value of the INPUT tag contains directories, you can use the # EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude # certain files from those directories. EXCLUDE_PATTERNS = # The EXAMPLE_PATH tag can be used to specify one or more files or # directories that contain example code fragments that are included (see # the \include command). EXAMPLE_PATH = # If the value of the EXAMPLE_PATH tag contains directories, you can use the # EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp # and *.h) to filter out the source-files in the directories. If left # blank all files are included. EXAMPLE_PATTERNS = # If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be # searched for input files to be used with the \include or \dontinclude # commands irrespective of the value of the RECURSIVE tag. # Possible values are YES and NO. If left blank NO is used. EXAMPLE_RECURSIVE = NO # The IMAGE_PATH tag can be used to specify one or more files or # directories that contain image that are included in the documentation (see # the \image command). IMAGE_PATH = # The INPUT_FILTER tag can be used to specify a program that doxygen should # invoke to filter for each input file. Doxygen will invoke the filter program # by executing (via popen()) the command , where # is the value of the INPUT_FILTER tag, and is the name of an # input file. Doxygen will then use the output that the filter program writes # to standard output. If FILTER_PATTERNS is specified, this tag will be # ignored. INPUT_FILTER = # The FILTER_PATTERNS tag can be used to specify filters on a per file pattern # basis. Doxygen will compare the file name with each pattern and apply the # filter if there is a match. The filters are a list of the form: # pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further # info on how filters are used. If FILTER_PATTERNS is empty, INPUT_FILTER # is applied to all files. FILTER_PATTERNS = # If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using # INPUT_FILTER) will be used to filter the input files when producing source # files to browse (i.e. when SOURCE_BROWSER is set to YES). FILTER_SOURCE_FILES = NO #--------------------------------------------------------------------------- # configuration options related to source browsing #--------------------------------------------------------------------------- # If the SOURCE_BROWSER tag is set to YES then a list of source files will # be generated. Documented entities will be cross-referenced with these sources. # Note: To get rid of all source code in the generated output, make sure also # VERBATIM_HEADERS is set to NO. SOURCE_BROWSER = NO # Setting the INLINE_SOURCES tag to YES will include the body # of functions and classes directly in the documentation. INLINE_SOURCES = NO # Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct # doxygen to hide any special comment blocks from generated source code # fragments. Normal C and C++ comments will always remain visible. STRIP_CODE_COMMENTS = YES # If the REFERENCED_BY_RELATION tag is set to YES (the default) # then for each documented function all documented # functions referencing it will be listed. REFERENCED_BY_RELATION = YES # If the REFERENCES_RELATION tag is set to YES (the default) # then for each documented function all documented entities # called/used by that function will be listed. REFERENCES_RELATION = YES # If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen # will generate a verbatim copy of the header file for each class for # which an include is specified. Set to NO to disable this. VERBATIM_HEADERS = NO #--------------------------------------------------------------------------- # configuration options related to the alphabetical class index #--------------------------------------------------------------------------- # If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index # of all compounds will be generated. Enable this if the project # contains a lot of classes, structs, unions or interfaces. ALPHABETICAL_INDEX = NO # If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then # the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns # in which this list will be split (can be a number in the range [1..20]) COLS_IN_ALPHA_INDEX = 5 # In case all classes in a project start with a common prefix, all # classes will be put under the same header in the alphabetical index. # The IGNORE_PREFIX tag can be used to specify one or more prefixes that # should be ignored while generating the index headers. IGNORE_PREFIX = #--------------------------------------------------------------------------- # configuration options related to the HTML output #--------------------------------------------------------------------------- # If the GENERATE_HTML tag is set to YES (the default) Doxygen will # generate HTML output. GENERATE_HTML = YES # The HTML_OUTPUT tag is used to specify where the HTML docs will be put. # If a relative path is entered the value of OUTPUT_DIRECTORY will be # put in front of it. If left blank `html' will be used as the default path. HTML_OUTPUT = html # The HTML_FILE_EXTENSION tag can be used to specify the file extension for # each generated HTML page (for example: .htm,.php,.asp). If it is left blank # doxygen will generate files with .html extension. HTML_FILE_EXTENSION = .html # The HTML_HEADER tag can be used to specify a personal HTML header for # each generated HTML page. If it is left blank doxygen will generate a # standard header. HTML_HEADER = # The HTML_FOOTER tag can be used to specify a personal HTML footer for # each generated HTML page. If it is left blank doxygen will generate a # standard footer. HTML_FOOTER = # The HTML_STYLESHEET tag can be used to specify a user-defined cascading # style sheet that is used by each HTML page. It can be used to # fine-tune the look of the HTML output. If the tag is left blank doxygen # will generate a default style sheet. Note that doxygen will try to copy # the style sheet file to the HTML output directory, so don't put your own # stylesheet in the HTML output directory as well, or it will be erased! HTML_STYLESHEET = # If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes, # files or namespaces will be aligned in HTML using tables. If set to # NO a bullet list will be used. HTML_ALIGN_MEMBERS = YES # If the GENERATE_HTMLHELP tag is set to YES, additional index files # will be generated that can be used as input for tools like the # Microsoft HTML help workshop to generate a compressed HTML help file (.chm) # of the generated HTML documentation. GENERATE_HTMLHELP = NO # If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can # be used to specify the file name of the resulting .chm file. You # can add a path in front of the file if the result should not be # written to the html output directory. CHM_FILE = # If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can # be used to specify the location (absolute path including file name) of # the HTML help compiler (hhc.exe). If non-empty doxygen will try to run # the HTML help compiler on the generated index.hhp. HHC_LOCATION = # If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag # controls if a separate .chi index file is generated (YES) or that # it should be included in the master .chm file (NO). GENERATE_CHI = NO # If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag # controls whether a binary table of contents is generated (YES) or a # normal table of contents (NO) in the .chm file. BINARY_TOC = NO # The TOC_EXPAND flag can be set to YES to add extra items for group members # to the contents of the HTML help documentation and to the tree view. TOC_EXPAND = NO # The DISABLE_INDEX tag can be used to turn on/off the condensed index at # top of each HTML page. The value NO (the default) enables the index and # the value YES disables it. DISABLE_INDEX = NO # This tag can be used to set the number of enum values (range [1..20]) # that doxygen will group on one line in the generated HTML documentation. ENUM_VALUES_PER_LINE = 4 # If the GENERATE_TREEVIEW tag is set to YES, a side panel will be # generated containing a tree-like index structure (just like the one that # is generated for HTML Help). For this to work a browser that supports # JavaScript, DHTML, CSS and frames is required (for instance Mozilla 1.0+, # Netscape 6.0+, Internet explorer 5.0+, or Konqueror). Windows users are # probably better off using the HTML help feature. GENERATE_TREEVIEW = NO # If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be # used to set the initial width (in pixels) of the frame in which the tree # is shown. TREEVIEW_WIDTH = 250 #--------------------------------------------------------------------------- # configuration options related to the LaTeX output #--------------------------------------------------------------------------- # If the GENERATE_LATEX tag is set to YES (the default) Doxygen will # generate Latex output. GENERATE_LATEX = NO # The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. # If a relative path is entered the value of OUTPUT_DIRECTORY will be # put in front of it. If left blank `latex' will be used as the default path. LATEX_OUTPUT = latex # The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be # invoked. If left blank `latex' will be used as the default command name. LATEX_CMD_NAME = latex # The MAKEINDEX_CMD_NAME tag can be used to specify the command name to # generate index for LaTeX. If left blank `makeindex' will be used as the # default command name. MAKEINDEX_CMD_NAME = makeindex # If the COMPACT_LATEX tag is set to YES Doxygen generates more compact # LaTeX documents. This may be useful for small projects and may help to # save some trees in general. COMPACT_LATEX = NO # The PAPER_TYPE tag can be used to set the paper type that is used # by the printer. Possible values are: a4, a4wide, letter, legal and # executive. If left blank a4wide will be used. PAPER_TYPE = a4wide # The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX # packages that should be included in the LaTeX output. EXTRA_PACKAGES = # The LATEX_HEADER tag can be used to specify a personal LaTeX header for # the generated latex document. The header should contain everything until # the first chapter. If it is left blank doxygen will generate a # standard header. Notice: only use this tag if you know what you are doing! LATEX_HEADER = # If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated # is prepared for conversion to pdf (using ps2pdf). The pdf file will # contain links (just like the HTML output) instead of page references # This makes the output suitable for online browsing using a pdf viewer. PDF_HYPERLINKS = NO # If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of # plain latex in the generated Makefile. Set this option to YES to get a # higher quality PDF documentation. USE_PDFLATEX = NO # If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode. # command to the generated LaTeX files. This will instruct LaTeX to keep # running if errors occur, instead of asking the user for help. # This option is also used when generating formulas in HTML. LATEX_BATCHMODE = NO # If LATEX_HIDE_INDICES is set to YES then doxygen will not # include the index chapters (such as File Index, Compound Index, etc.) # in the output. LATEX_HIDE_INDICES = NO #--------------------------------------------------------------------------- # configuration options related to the RTF output #--------------------------------------------------------------------------- # If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output # The RTF output is optimized for Word 97 and may not look very pretty with # other RTF readers or editors. GENERATE_RTF = NO # The RTF_OUTPUT tag is used to specify where the RTF docs will be put. # If a relative path is entered the value of OUTPUT_DIRECTORY will be # put in front of it. If left blank `rtf' will be used as the default path. RTF_OUTPUT = rtf # If the COMPACT_RTF tag is set to YES Doxygen generates more compact # RTF documents. This may be useful for small projects and may help to # save some trees in general. COMPACT_RTF = NO # If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated # will contain hyperlink fields. The RTF file will # contain links (just like the HTML output) instead of page references. # This makes the output suitable for online browsing using WORD or other # programs which support those fields. # Note: wordpad (write) and others do not support links. RTF_HYPERLINKS = NO # Load stylesheet definitions from file. Syntax is similar to doxygen's # config file, i.e. a series of assignments. You only have to provide # replacements, missing definitions are set to their default value. RTF_STYLESHEET_FILE = # Set optional variables used in the generation of an rtf document. # Syntax is similar to doxygen's config file. RTF_EXTENSIONS_FILE = #--------------------------------------------------------------------------- # configuration options related to the man page output #--------------------------------------------------------------------------- # If the GENERATE_MAN tag is set to YES (the default) Doxygen will # generate man pages GENERATE_MAN = NO # The MAN_OUTPUT tag is used to specify where the man pages will be put. # If a relative path is entered the value of OUTPUT_DIRECTORY will be # put in front of it. If left blank `man' will be used as the default path. MAN_OUTPUT = man # The MAN_EXTENSION tag determines the extension that is added to # the generated man pages (default is the subroutine's section .3) MAN_EXTENSION = .3 # If the MAN_LINKS tag is set to YES and Doxygen generates man output, # then it will generate one additional man file for each entity # documented in the real man page(s). These additional files # only source the real man page, but without them the man command # would be unable to find the correct page. The default is NO. MAN_LINKS = NO #--------------------------------------------------------------------------- # configuration options related to the XML output #--------------------------------------------------------------------------- # If the GENERATE_XML tag is set to YES Doxygen will # generate an XML file that captures the structure of # the code including all documentation. GENERATE_XML = NO # The XML_OUTPUT tag is used to specify where the XML pages will be put. # If a relative path is entered the value of OUTPUT_DIRECTORY will be # put in front of it. If left blank `xml' will be used as the default path. XML_OUTPUT = xml # The XML_SCHEMA tag can be used to specify an XML schema, # which can be used by a validating XML parser to check the # syntax of the XML files. XML_SCHEMA = # The XML_DTD tag can be used to specify an XML DTD, # which can be used by a validating XML parser to check the # syntax of the XML files. XML_DTD = # If the XML_PROGRAMLISTING tag is set to YES Doxygen will # dump the program listings (including syntax highlighting # and cross-referencing information) to the XML output. Note that # enabling this will significantly increase the size of the XML output. 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GENERATE_PERLMOD = NO # If the PERLMOD_LATEX tag is set to YES Doxygen will generate # the necessary Makefile rules, Perl scripts and LaTeX code to be able # to generate PDF and DVI output from the Perl module output. PERLMOD_LATEX = NO # If the PERLMOD_PRETTY tag is set to YES the Perl module output will be # nicely formatted so it can be parsed by a human reader. This is useful # if you want to understand what is going on. On the other hand, if this # tag is set to NO the size of the Perl module output will be much smaller # and Perl will parse it just the same. PERLMOD_PRETTY = YES # The names of the make variables in the generated doxyrules.make file # are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. # This is useful so different doxyrules.make files included by the same # Makefile don't overwrite each other's variables. PERLMOD_MAKEVAR_PREFIX = #--------------------------------------------------------------------------- # Configuration options related to the preprocessor #--------------------------------------------------------------------------- # If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will # evaluate all C-preprocessor directives found in the sources and include # files. ENABLE_PREPROCESSING = YES # If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro # names in the source code. If set to NO (the default) only conditional # compilation will be performed. Macro expansion can be done in a controlled # way by setting EXPAND_ONLY_PREDEF to YES. MACRO_EXPANSION = YES # If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES # then the macro expansion is limited to the macros specified with the # PREDEFINED and EXPAND_AS_PREDEFINED tags. EXPAND_ONLY_PREDEF = YES # If the SEARCH_INCLUDES tag is set to YES (the default) the includes files # in the INCLUDE_PATH (see below) will be search if a #include is found. SEARCH_INCLUDES = YES # The INCLUDE_PATH tag can be used to specify one or more directories that # contain include files that are not input files but should be processed by # the preprocessor. INCLUDE_PATH = # You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard # patterns (like *.h and *.hpp) to filter out the header-files in the # directories. If left blank, the patterns specified with FILE_PATTERNS will # be used. INCLUDE_FILE_PATTERNS = # The PREDEFINED tag can be used to specify one or more macro names that # are defined before the preprocessor is started (similar to the -D option of # gcc). The argument of the tag is a list of macros of the form: name # or name=definition (no spaces). If the definition and the = are # omitted =1 is assumed. PREDEFINED = __KERNEL__ \ DRM(x)=x \ __OS_HAS_AGP=1 \ __OS_HAS_MTRR=1 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then # this tag can be used to specify a list of macro names that should be expanded. # The macro definition that is found in the sources will be used. # Use the PREDEFINED tag if you want to use a different macro definition. EXPAND_AS_DEFINED = DRMFILE \ DRM_IOCTL_ARGS \ DRM_IRQ_ARGS \ DRM_TASKQUEUE_ARGS # If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then # doxygen's preprocessor will remove all function-like macros that are alone # on a line, have an all uppercase name, and do not end with a semicolon. Such # function macros are typically used for boiler-plate code, and will confuse the # parser if not removed. 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TAGFILES = # When a file name is specified after GENERATE_TAGFILE, doxygen will create # a tag file that is based on the input files it reads. GENERATE_TAGFILE = # If the ALLEXTERNALS tag is set to YES all external classes will be listed # in the class index. If set to NO only the inherited external classes # will be listed. ALLEXTERNALS = NO # If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed # in the modules index. If set to NO, only the current project's groups will # be listed. EXTERNAL_GROUPS = YES # The PERL_PATH should be the absolute path and name of the perl script # interpreter (i.e. the result of `which perl'). PERL_PATH = /usr/bin/perl #--------------------------------------------------------------------------- # Configuration options related to the dot tool #--------------------------------------------------------------------------- # If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will # generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base or # super classes. Setting the tag to NO turns the diagrams off. Note that this # option is superseded by the HAVE_DOT option below. This is only a fallback. It is # recommended to install and use dot, since it yields more powerful graphs. CLASS_DIAGRAMS = YES # If set to YES, the inheritance and collaboration graphs will hide # inheritance and usage relations if the target is undocumented # or is not a class. HIDE_UNDOC_RELATIONS = YES # If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is # available from the path. This tool is part of Graphviz, a graph visualization # toolkit from AT&T and Lucent Bell Labs. The other options in this section # have no effect if this option is set to NO (the default) HAVE_DOT = NO # If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen # will generate a graph for each documented class showing the direct and # indirect inheritance relations. Setting this tag to YES will force the # the CLASS_DIAGRAMS tag to NO. CLASS_GRAPH = YES # If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen # will generate a graph for each documented class showing the direct and # indirect implementation dependencies (inheritance, containment, and # class references variables) of the class with other documented classes. COLLABORATION_GRAPH = YES # If the UML_LOOK tag is set to YES doxygen will generate inheritance and # collaboration diagrams in a style similar to the OMG's Unified Modeling # Language. UML_LOOK = NO # If set to YES, the inheritance and collaboration graphs will show the # relations between templates and their instances. TEMPLATE_RELATIONS = YES # If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT # tags are set to YES then doxygen will generate a graph for each documented # file showing the direct and indirect include dependencies of the file with # other documented files. INCLUDE_GRAPH = YES # If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and # HAVE_DOT tags are set to YES then doxygen will generate a graph for each # documented header file showing the documented files that directly or # indirectly include this file. INCLUDED_BY_GRAPH = YES # If the CALL_GRAPH and HAVE_DOT tags are set to YES then doxygen will # generate a call dependency graph for every global function or class method. # Note that enabling this option will significantly increase the time of a run. # So in most cases it will be better to enable call graphs for selected # functions only using the \callgraph command. CALL_GRAPH = NO # If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen # will graphical hierarchy of all classes instead of a textual one. GRAPHICAL_HIERARCHY = YES # The DOT_IMAGE_FORMAT tag can be used to set the image format of the images # generated by dot. Possible values are png, jpg, or gif # If left blank png will be used. DOT_IMAGE_FORMAT = png # The tag DOT_PATH can be used to specify the path where the dot tool can be # found. If left blank, it is assumed the dot tool can be found on the path. DOT_PATH = # The DOTFILE_DIRS tag can be used to specify one or more directories that # contain dot files that are included in the documentation (see the # \dotfile command). DOTFILE_DIRS = # The MAX_DOT_GRAPH_WIDTH tag can be used to set the maximum allowed width # (in pixels) of the graphs generated by dot. If a graph becomes larger than # this value, doxygen will try to truncate the graph, so that it fits within # the specified constraint. Beware that most browsers cannot cope with very # large images. MAX_DOT_GRAPH_WIDTH = 1024 # The MAX_DOT_GRAPH_HEIGHT tag can be used to set the maximum allows height # (in pixels) of the graphs generated by dot. If a graph becomes larger than # this value, doxygen will try to truncate the graph, so that it fits within # the specified constraint. Beware that most browsers cannot cope with very # large images. MAX_DOT_GRAPH_HEIGHT = 1024 # The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the # graphs generated by dot. A depth value of 3 means that only nodes reachable # from the root by following a path via at most 3 edges will be shown. Nodes that # lay further from the root node will be omitted. Note that setting this option to # 1 or 2 may greatly reduce the computation time needed for large code bases. Also # note that a graph may be further truncated if the graph's image dimensions are # not sufficient to fit the graph (see MAX_DOT_GRAPH_WIDTH and MAX_DOT_GRAPH_HEIGHT). # If 0 is used for the depth value (the default), the graph is not depth-constrained. MAX_DOT_GRAPH_DEPTH = 0 # If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will # generate a legend page explaining the meaning of the various boxes and # arrows in the dot generated graphs. GENERATE_LEGEND = YES # If the DOT_CLEANUP tag is set to YES (the default) Doxygen will # remove the intermediate dot files that are used to generate # the various graphs. DOT_CLEANUP = YES #--------------------------------------------------------------------------- # Configuration::additions related to the search engine #--------------------------------------------------------------------------- # The SEARCHENGINE tag specifies whether or not a search engine should be # used. If set to NO the values of all tags below this one will be ignored. SEARCHENGINE = NO ='#n1298'>1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 
/*
 * Copyright (C) 2008 Maarten Maathuis.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include "nv50_kms_wrapper.h"
#include "drm_crtc_helper.h" /* be careful what you use from this */

/* This file serves as the interface between the common kernel modesetting code and the device dependent implementation. */

/*
 * Get private functions.
 */

struct nv50_kms_priv *nv50_get_kms_priv(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	return dev_priv->kms_priv;
}

/*
 * Allocation functions.
 */

static void *nv50_kms_alloc_crtc(struct drm_device *dev)
{
	struct nv50_kms_priv *kms_priv = nv50_get_kms_priv(dev);
	struct nv50_kms_crtc *crtc = kzalloc(sizeof(struct nv50_kms_crtc), GFP_KERNEL);

	if (!crtc)
		return NULL;

	list_add_tail(&crtc->item, &kms_priv->crtcs);

	return &(crtc->priv);
}

static void *nv50_kms_alloc_output(struct drm_device *dev)
{
	struct nv50_kms_priv *kms_priv = nv50_get_kms_priv(dev);
	struct nv50_kms_encoder *encoder = kzalloc(sizeof(struct nv50_kms_encoder), GFP_KERNEL);

	if (!encoder)
		return NULL;

	list_add_tail(&encoder->item, &kms_priv->encoders);

	return &(encoder->priv);
}

static void *nv50_kms_alloc_connector(struct drm_device *dev)
{
	struct nv50_kms_priv *kms_priv = nv50_get_kms_priv(dev);
	struct nv50_kms_connector *connector = kzalloc(sizeof(struct nv50_kms_connector), GFP_KERNEL);

	if (!connector)
		return NULL;

	list_add_tail(&connector->item, &kms_priv->connectors);

	return &(connector->priv);
}

static void nv50_kms_free_crtc(void *crtc)
{
	struct nv50_kms_crtc *kms_crtc = from_nv50_crtc(crtc);

	list_del(&kms_crtc->item);

	kfree(kms_crtc);
}

static void nv50_kms_free_output(void *output)
{
	struct nv50_kms_encoder *kms_encoder = from_nv50_output(output);

	list_del(&kms_encoder->item);

	kfree(kms_encoder);
}

static void nv50_kms_free_connector(void *connector)
{
	struct nv50_kms_connector *kms_connector = from_nv50_connector(connector);

	list_del(&kms_connector->item);

	kfree(kms_connector);
}

/*
 * Mode conversion functions.
 */

static struct nouveau_hw_mode *nv50_kms_to_hw_mode(struct drm_display_mode *mode)
{
	struct nouveau_hw_mode *hw_mode = kzalloc(sizeof(struct nouveau_hw_mode), GFP_KERNEL);
	if (!hw_mode)
		return NULL;

	/* create hw values. */
	hw_mode->clock = mode->clock;
	hw_mode->flags = hw_mode->flags;

	hw_mode->hdisplay = mode->hdisplay;
	hw_mode->hsync_start = mode->hsync_start;
	hw_mode->hsync_end = mode->hsync_end;
	hw_mode->htotal = mode->htotal;

	hw_mode->hblank_start = mode->hdisplay + 1;
	hw_mode->hblank_end = mode->htotal;

	hw_mode->vdisplay = mode->vdisplay;
	hw_mode->vsync_start = mode->vsync_start;
	hw_mode->vsync_end = mode->vsync_end;
	hw_mode->vtotal = mode->vtotal;

	hw_mode->vblank_start = mode->vdisplay + 1;
	hw_mode->vblank_end = mode->vtotal;

	return hw_mode;
}

/*
 * State mirroring functions.
 */

static void nv50_kms_mirror_routing(struct drm_device *dev)
{
	struct nv50_display *display = nv50_get_display(dev);
	struct nv50_crtc *crtc = NULL;
	struct nv50_output *output = NULL;
	struct nv50_connector *connector = NULL;
	struct drm_connector *drm_connector = NULL;
	struct drm_crtc *drm_crtc = NULL;

	/* Wipe all previous connections. */
	list_for_each_entry(connector, &display->connectors, item) {
		connector->output = NULL;
	}

	list_for_each_entry(output, &display->outputs, item) {
		output->crtc = NULL;
	}

	list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
		if (drm_connector->encoder) {
			output = to_nv50_output(drm_connector->encoder);
			connector = to_nv50_connector(drm_connector);

			/* hook up output to connector. */
			connector->output = output;

			if (drm_connector->encoder->crtc) {
				crtc = to_nv50_crtc(drm_connector->encoder->crtc);

				/* hook up output to crtc. */
				output->crtc = crtc;
			}
		}
	}

	/* mirror crtc active state */
	list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
		crtc = to_nv50_crtc(drm_crtc);

		crtc->enabled = drm_crtc->enabled;
	}
}

/*
 * FB functions.
 */

static void nv50_kms_framebuffer_destroy(struct drm_framebuffer *drm_framebuffer)
{
	drm_framebuffer_cleanup(drm_framebuffer);

	kfree(drm_framebuffer);
}

static const struct drm_framebuffer_funcs nv50_kms_fb_funcs = {
	.destroy = nv50_kms_framebuffer_destroy,
};

/*
 * Mode config functions.
 */

static struct drm_framebuffer *nv50_kms_framebuffer_create(struct drm_device *dev,
						struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd)
{
	struct drm_framebuffer *drm_framebuffer = kzalloc(sizeof(struct drm_framebuffer), GFP_KERNEL);
	if (!drm_framebuffer)
		return NULL;

	drm_framebuffer_init(dev, drm_framebuffer, &nv50_kms_fb_funcs);
	drm_helper_mode_fill_fb_struct(drm_framebuffer, mode_cmd);

	return drm_framebuffer;
}

static int nv50_kms_fb_changed(struct drm_device *dev)
{
	return 0; /* not needed until nouveaufb? */
}

static const struct drm_mode_config_funcs nv50_kms_mode_funcs = {
	.resize_fb = NULL,
	.fb_create = nv50_kms_framebuffer_create,
	.fb_changed = nv50_kms_fb_changed,
};

/*
 * CRTC functions.
 */

static int nv50_kms_crtc_cursor_set(struct drm_crtc *drm_crtc, uint32_t buffer_handle,
			  uint32_t width, uint32_t height)
{
	struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
	struct nv50_display *display = nv50_get_display(crtc->dev);
	int rval = 0;

	if (width != 64 || height != 64)
		return -EINVAL;

	/* set bo before doing show cursor */
	if (buffer_handle) {
		rval = crtc->cursor->set_bo(crtc, (drm_handle_t) buffer_handle);
		if (rval != 0)
			goto out;
	}

	crtc->cursor->visible = buffer_handle ? true : false;

	if (buffer_handle) {
		rval = crtc->cursor->show(crtc);
		if (rval != 0)
			goto out;
	} else { /* no handle implies hiding the cursor */
		rval = crtc->cursor->hide(crtc);
		goto out;
	}

	if (rval != 0)
		return rval;

out:
	/* in case this triggers any other cursor changes */
	display->update(display);

	return rval;
}

static int nv50_kms_crtc_cursor_move(struct drm_crtc *drm_crtc, int x, int y)
{
	struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);

	return crtc->cursor->set_pos(crtc, x, y);
}

void nv50_kms_crtc_gamma_set(struct drm_crtc *drm_crtc, u16 *r, u16 *g, u16 *b,
		uint32_t size)
{
	struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);

	if (size != 256)
		return;

	crtc->lut->set(crtc, (uint16_t *)r, (uint16_t *)g, (uint16_t *)b);
}

int nv50_kms_crtc_set_config(struct drm_mode_set *set)
{
	int rval = 0, i;
	uint32_t crtc_mask = 0;
	struct drm_device *dev = NULL;
	struct drm_nouveau_private *dev_priv = NULL;
	struct nv50_display *display = NULL;
	struct drm_connector *drm_connector = NULL;
	struct drm_encoder *drm_encoder = NULL;
	struct drm_crtc *drm_crtc = NULL;

	struct nv50_crtc *crtc = NULL;
	struct nv50_output *output = NULL;
	struct nv50_connector *connector = NULL;
	struct nouveau_hw_mode *hw_mode = NULL;
	struct nv50_fb_info fb_info;

	bool blank = false;
	bool switch_fb = false;
	bool modeset = false;

	NV50_DEBUG("\n");

	/*
	 * Supported operations:
	 * - Switch mode.
	 * - Switch framebuffer.
	 * - Blank screen.
	 */

	/* Sanity checking */
	if (!set) {
		DRM_ERROR("Sanity check failed\n");
		goto out;
	}

	if (!set->crtc) {
		DRM_ERROR("Sanity check failed\n");
		goto out;
	}

	if (set->mode) {
		if (set->fb) {
			if (!drm_mode_equal(set->mode, &set->crtc->mode))
				modeset = true;

			if (set->fb != set->crtc->fb)
				switch_fb = true;

			if (set->x != set->crtc->x || set->y != set->crtc->y)
				switch_fb = true;
		}
	} else {
		blank = true;
	}

	if (!set->connectors && !blank) {
		DRM_ERROR("Sanity check failed\n");
		goto out;
	}

	/* Basic variable setting */
	dev = set->crtc->dev;
	dev_priv = dev->dev_private;
	display = nv50_get_display(dev);
	crtc = to_nv50_crtc(set->crtc);

	/**
	 * Wiring up the encoders and connectors.
	 */

	/* for switch_fb we verify if any important changes happened */
	if (!blank) {
		/* Mode validation */
		hw_mode = nv50_kms_to_hw_mode(set->mode);

		rval = crtc->validate_mode(crtc, hw_mode);

		if (rval != MODE_OK) {
			DRM_ERROR("Mode not ok\n");
			goto out;
		}

		for (i = 0; i < set->num_connectors; i++) {
			drm_connector = set->connectors[i];
			if (!drm_connector) {
				DRM_ERROR("No connector\n");
				goto out;
			}
			connector = to_nv50_connector(drm_connector);

			/* This is to ensure it knows the connector subtype. */
			drm_connector->funcs->fill_modes(drm_connector, 0, 0);

			output = connector->to_output(connector, nv50_kms_connector_get_digital(drm_connector));
			if (!output) {
				DRM_ERROR("No output\n");
				goto out;
			}

			rval = output->validate_mode(output, hw_mode);
			if (rval != MODE_OK) {
				DRM_ERROR("Mode not ok\n");
				goto out;
			}

			/* verify if any "sneaky" changes happened */
			if (output != connector->output)
				modeset = true;

			if (output->crtc != crtc)
				modeset = true;
		}
	}

	/* Now we verified if anything changed, fail if nothing has. */
	if (!modeset && !switch_fb && !blank)
		DRM_INFO("A seemingly empty modeset encountered, this could be a bug.\n");

	/* Validation done, move on to cleaning of existing structures. */
	if (modeset) {
		/* find encoders that use this crtc. */
		list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
			if (drm_encoder->crtc == set->crtc) {
				/* find the connector that goes with it */
				list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
					if (drm_connector->encoder == drm_encoder) {
						drm_connector->encoder =  NULL;
						break;
					}
				}
				drm_encoder->crtc = NULL;
			}
		}

		/* now find if our desired encoders or connectors are in use already. */
		for (i = 0; i < set->num_connectors; i++) {
			drm_connector = set->connectors[i];
			if (!drm_connector) {
				DRM_ERROR("No connector\n");
				goto out;
			}

			if (!drm_connector->encoder)
				continue;

			drm_encoder = drm_connector->encoder;
			drm_connector->encoder = NULL;

			if (!drm_encoder->crtc)
				continue;

			drm_crtc = drm_encoder->crtc;
			drm_encoder->crtc = NULL;

			drm_crtc->enabled = false;
		}

		/* Time to wire up the public encoder, the private one will be handled later. */
		for (i = 0; i < set->num_connectors; i++) {
			drm_connector = set->connectors[i];
			if (!drm_connector) {
				DRM_ERROR("No connector\n");
				goto out;
			}

			output = connector->to_output(connector, nv50_kms_connector_get_digital(drm_connector));
			if (!output) {
				DRM_ERROR("No output\n");
				goto out;
			}

			/* find the encoder public structure that matches out output structure. */
			drm_encoder = to_nv50_kms_encoder(output);

			if (!drm_encoder) {
				DRM_ERROR("No encoder\n");
				goto out;
			}

			drm_encoder->crtc = set->crtc;
			set->crtc->enabled = true;
			drm_connector->encoder = drm_encoder;
		}
	}

	/**
	 * Disable crtc.
	 */

	if (blank) {
		crtc = to_nv50_crtc(set->crtc);

		set->crtc->enabled = false;

		/* disconnect encoders and connectors */
		for (i = 0; i < set->num_connectors; i++) {
			drm_connector = set->connectors[i];

			if (!drm_connector->encoder)
				continue;

			drm_connector->encoder->crtc = NULL;
			drm_connector->encoder = NULL;
		}
	}

	/**
	 * All state should now be updated, now onto the real work.
	 */

	/* mirror everything to the private structs */
	nv50_kms_mirror_routing(dev);

	/**
	 * Bind framebuffer.
	 */

	if (switch_fb) {
		crtc = to_nv50_crtc(set->crtc);

		/* set framebuffer */
		set->crtc->fb = set->fb;

		/* set private framebuffer */
		crtc = to_nv50_crtc(set->crtc);
		fb_info.block = find_block_by_handle(dev_priv->fb_heap, set->fb->mm_handle);
		fb_info.width = set->fb->width;
		fb_info.height = set->fb->height;
		fb_info.depth = set->fb->depth;
		fb_info.bpp = set->fb->bits_per_pixel;
		fb_info.pitch = set->fb->pitch;
		fb_info.x = set->x;
		fb_info.y = set->y;

		rval = crtc->fb->bind(crtc, &fb_info);
		if (rval != 0) {
			DRM_ERROR("fb_bind failed\n");
			goto out;
		}
	}

	/* this is !cursor_show */
	if (!crtc->cursor->enabled) {
		rval = crtc->cursor->enable(crtc);
		if (rval != 0) {
			DRM_ERROR("cursor_enable failed\n");
			goto out;
		}
	}

	/**
	 * Blanking.
	 */

	if (blank) {
		crtc = to_nv50_crtc(set->crtc);

		rval = crtc->blank(crtc, true);
		if (rval != 0) {
			DRM_ERROR("blanking failed\n");
			goto out;
		}

		/* detach any outputs that are currently unused */
		list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
			if (!drm_encoder->crtc) {
				output = to_nv50_output(drm_encoder);

				rval = output->execute_mode(output, true);
				if (rval != 0) {
					DRM_ERROR("detaching output failed\n");
					goto out;
				}
			}
		}
	}

	/**
	 * Change framebuffer, without changing mode.
	 */

	if (switch_fb && !modeset && !blank) {
		crtc = to_nv50_crtc(set->crtc);

		rval = crtc->set_fb(crtc);
		if (rval != 0) {
			DRM_ERROR("set_fb failed\n");
			goto out;
		}

		/* this also sets the fb offset */
		rval = crtc->blank(crtc, false);
		if (rval != 0) {
			DRM_ERROR("unblanking failed\n");
			goto out;
		}
	}

	/**
	 * Normal modesetting.
	 */

	if (modeset) {
		crtc = to_nv50_crtc(set->crtc);

		/* disconnect unused outputs */
		list_for_each_entry(output, &display->outputs, item) {
			if (output->crtc) {
				crtc_mask |= 1 << output->crtc->index;
			} else {
				rval = output->execute_mode(output, true);
				if (rval != 0) {
					DRM_ERROR("detaching output failed\n");
					goto out;
				}
			}
		}

		/* blank any unused crtcs */
		list_for_each_entry(crtc, &display->crtcs, item) {
			if (!(crtc_mask & (1 << crtc->index)))
				crtc->blank(crtc, true);
		}

		crtc = to_nv50_crtc(set->crtc);

		rval = crtc->set_mode(crtc, hw_mode);
		if (rval != 0) {
			DRM_ERROR("crtc mode set failed\n");
			goto out;
		}

		/* find native mode. */
		list_for_each_entry(output, &display->outputs, item) {
			if (output->crtc != crtc)
				continue;

			*crtc->native_mode = *output->native_mode;
			list_for_each_entry(connector, &display->connectors, item) {
				if (connector->output != output)
					continue;

				crtc->requested_scaling_mode = connector->requested_scaling_mode;
				crtc->use_dithering = connector->use_dithering;
				break;
			}

			if (crtc->requested_scaling_mode == SCALE_NON_GPU)
				crtc->use_native_mode = false;
			else
				crtc->use_native_mode = true;

			break; /* no use in finding more than one mode */
		}

		rval = crtc->execute_mode(crtc);
		if (rval != 0) {
			DRM_ERROR("crtc execute mode failed\n");
			goto out;
		}

		list_for_each_entry(output, &display->outputs, item) {
			if (output->crtc != crtc)
				continue;

			rval = output->execute_mode(output, false);
			if (rval != 0) {
				DRM_ERROR("output execute mode failed\n");
				goto out;
			}
		}

		rval = crtc->set_scale(crtc);
		if (rval != 0) {
			DRM_ERROR("crtc set scale failed\n");
			goto out;
		}

		/* next line changes crtc, so putting it here is important */
		display->last_crtc = crtc->index;
	}

	/* always reset dpms, regardless if any other modesetting is done. */
	if (!blank) {
		/* this is executed immediately */
		list_for_each_entry(output, &display->outputs, item) {
			if (output->crtc != crtc)
				continue;

			rval = output->set_power_mode(output, DRM_MODE_DPMS_ON);
			if (rval != 0) {
				DRM_ERROR("output set power mode failed\n");
				goto out;
			}
		}

		/* update dpms state to DPMSModeOn */
		for (i = 0; i < set->num_connectors; i++) {
			drm_connector = set->connectors[i];
			if (!drm_connector) {
				DRM_ERROR("No connector\n");
				goto out;
			}

			rval = drm_connector_property_set_value(drm_connector,
					dev->mode_config.dpms_property,
					DRM_MODE_DPMS_ON);
			if (rval != 0) {
				DRM_ERROR("failed to update dpms state\n");
				goto out;
			}
		}
	}

	display->update(display);

	/* Update the current mode, now that all has gone well. */
	if (modeset) {
		set->crtc->mode = *(set->mode);
		set->crtc->x = set->x;
		set->crtc->y = set->y;
	}

	kfree(hw_mode);

	return 0;

out:
	kfree(hw_mode);

	if (rval != 0)
		return rval;
	else
		return -EINVAL;
}

static void nv50_kms_crtc_destroy(struct drm_crtc *drm_crtc)
{
	struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);

	drm_crtc_cleanup(drm_crtc);

	/* this will even destroy the public structure. */
	crtc->destroy(crtc);
}

static const struct drm_crtc_funcs nv50_kms_crtc_funcs = {
	.save = NULL,
	.restore = NULL,
	.cursor_set = nv50_kms_crtc_cursor_set,
	.cursor_move = nv50_kms_crtc_cursor_move,
	.gamma_set = nv50_kms_crtc_gamma_set,
	.set_config = nv50_kms_crtc_set_config,
	.destroy = nv50_kms_crtc_destroy,
};

static int nv50_kms_crtcs_init(struct drm_device *dev)
{
	struct nv50_display *display = nv50_get_display(dev);
	struct nv50_crtc *crtc = NULL;

	/*
	 * This may look a bit confusing, but:
	 * The internal structure is already allocated and so is the public one.
	 * Just a matter of getting to the memory and register it.
	 */
	list_for_each_entry(crtc, &display->crtcs, item) {
		struct drm_crtc *drm_crtc = to_nv50_kms_crtc(crtc);

		drm_crtc_init(dev, drm_crtc, &nv50_kms_crtc_funcs);

		/* init lut storage */
		drm_mode_crtc_set_gamma_size(drm_crtc, 256);
	}

	return 0;
}

/*
 * Encoder functions
 */

static void nv50_kms_encoder_destroy(struct drm_encoder *drm_encoder)
{
	struct nv50_output *output = to_nv50_output(drm_encoder);

	drm_encoder_cleanup(drm_encoder);

	/* this will even destroy the public structure. */
	output->destroy(output);
}

static const struct drm_encoder_funcs nv50_kms_encoder_funcs = {
	.destroy = nv50_kms_encoder_destroy,
};

static int nv50_kms_encoders_init(struct drm_device *dev)
{
	struct nv50_display *display = nv50_get_display(dev);
	struct nv50_output *output = NULL;

	list_for_each_entry(output, &display->outputs, item) {
		struct drm_encoder *drm_encoder = to_nv50_kms_encoder(output);
		uint32_t type = DRM_MODE_ENCODER_NONE;

		switch (output->type) {
			case OUTPUT_DAC:
				type = DRM_MODE_ENCODER_DAC;
				break;
			case OUTPUT_TMDS:
				type = DRM_MODE_ENCODER_TMDS;
				break;
			case OUTPUT_LVDS:
				type = DRM_MODE_ENCODER_LVDS;
				break;
			case OUTPUT_TV:
				type = DRM_MODE_ENCODER_TVDAC;
				break;
			default:
				type = DRM_MODE_ENCODER_NONE;
				break;
		}

		if (type == DRM_MODE_ENCODER_NONE) {
			DRM_ERROR("DRM_MODE_ENCODER_NONE encountered\n");
			continue;
		}

		drm_encoder_init(dev, drm_encoder, &nv50_kms_encoder_funcs, type);

		/* I've never seen possible crtc's restricted. */
		drm_encoder->possible_crtcs = 3;
		drm_encoder->possible_clones = 0;
	}

	return 0;
}

/*
 * Connector functions
 */


/* These 2 functions wrap the connector properties that deal with multiple encoders per connector. */
bool nv50_kms_connector_get_digital(struct drm_connector *drm_connector)
{
	struct drm_device *dev = drm_connector->dev;

	switch (drm_connector->connector_type) {
		case DRM_MODE_CONNECTOR_VGA:
		case DRM_MODE_CONNECTOR_SVIDEO:
			return false;
		case DRM_MODE_CONNECTOR_DVID:
		case DRM_MODE_CONNECTOR_LVDS:
			return true;
		default:
			break;
	}

	if (drm_connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
		int rval;
		uint64_t prop_val;

		rval = drm_connector_property_get_value(drm_connector, dev->mode_config.dvi_i_select_subconnector_property, &prop_val);
		if (rval) {
			DRM_ERROR("Unable to find select subconnector property, defaulting to DVI-D\n");
			return true;
		}

		/* Is a subconnector explicitly selected? */
		switch (prop_val) {
			case DRM_MODE_SUBCONNECTOR_DVID:
				return true;
			case DRM_MODE_SUBCONNECTOR_DVIA:
				return false;
			default:
				break;
		}

		rval = drm_connector_property_get_value(drm_connector, dev->mode_config.dvi_i_subconnector_property, &prop_val);
		if (rval) {
			DRM_ERROR("Unable to find subconnector property, defaulting to DVI-D\n");
			return true;
		}

		/* Do we know what subconnector we currently have connected? */
		switch (prop_val) {
			case DRM_MODE_SUBCONNECTOR_DVID:
				return true;
			case DRM_MODE_SUBCONNECTOR_DVIA:
				return false;
			default:
				DRM_ERROR("Unknown subconnector value, defaulting to DVI-D\n");
				return true;
		}
	}

	DRM_ERROR("Unknown connector type, defaulting to analog\n");
	return false;
}

static void nv50_kms_connector_set_digital(struct drm_connector *drm_connector, int digital, bool force)
{
	struct drm_device *dev = drm_connector->dev;

	if (drm_connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
		uint64_t cur_value, new_value;

		int rval = drm_connector_property_get_value(drm_connector, dev->mode_config.dvi_i_subconnector_property, &cur_value);
		if (rval) {
			DRM_ERROR("Unable to find subconnector property\n");
			return;
		}

		/* Only set when unknown or when forced to do so. */
		if (cur_value != DRM_MODE_SUBCONNECTOR_Unknown && !force)
			return;

		if (digital == 1)
			new_value = DRM_MODE_SUBCONNECTOR_DVID;
		else if (digital == 0)
			new_value = DRM_MODE_SUBCONNECTOR_DVIA;
		else
			new_value = DRM_MODE_SUBCONNECTOR_Unknown;
		drm_connector_property_set_value(drm_connector, dev->mode_config.dvi_i_subconnector_property, new_value);
	}
}

void nv50_kms_connector_detect_all(struct drm_device *dev)
{
	struct drm_connector *drm_connector = NULL;

	list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
		drm_connector->funcs->detect(drm_connector);
	}
}

static enum drm_connector_status nv50_kms_connector_detect(struct drm_connector *drm_connector)
{
	struct drm_device *dev = drm_connector->dev;
	struct nv50_connector *connector = to_nv50_connector(drm_connector);
	struct nv50_output *output = NULL;
	int hpd_detect = 0, load_detect = 0, i2c_detect = 0;
	int old_status = drm_connector->status;

	/* hotplug detect */
	hpd_detect = connector->hpd_detect(connector);

	/* load detect */
	output = connector->to_output(connector, FALSE); /* analog */
	if (output && output->detect)
		load_detect = output->detect(output);

	if (hpd_detect < 0 || load_detect < 0) /* did an error occur? */
		i2c_detect = connector->i2c_detect(connector);

	if (load_detect == 1) {
		nv50_kms_connector_set_digital(drm_connector, 0, TRUE); /* analog, forced */
	} else if (hpd_detect == 1 && load_detect == 0) {
		nv50_kms_connector_set_digital(drm_connector, 1, TRUE); /* digital, forced */
	} else {
		nv50_kms_connector_set_digital(drm_connector, -1, TRUE); /* unknown, forced */
	}

	if (hpd_detect == 1 || load_detect == 1 || i2c_detect == 1)
		drm_connector->status = connector_status_connected;
	else
		drm_connector->status = connector_status_disconnected;

	/* update our modes whenever there is reason to */
	if (old_status != drm_connector->status) {
		drm_connector->funcs->fill_modes(drm_connector, 0, 0);

		/* notify fb of changes */
		dev->mode_config.funcs->fb_changed(dev);
	}

	return drm_connector->status;
}

static void nv50_kms_connector_destroy(struct drm_connector *drm_connector)
{
	struct nv50_connector *connector = to_nv50_connector(drm_connector);

	drm_sysfs_connector_remove(drm_connector);
	drm_connector_cleanup(drm_connector);

	/* this will even destroy the public structure. */
	connector->destroy(connector);
}

/*
 * Detailed mode info for a standard 640x480@60Hz monitor
 */
static struct drm_display_mode std_mode[] = {
	/*{ DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 25200, 640, 656,
		 752, 800, 0, 480, 490, 492, 525, 0,
		 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },*/ /* 640x480@60Hz */
	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DEFAULT, 135000, 1280, 1296,
		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
};

static void nv50_kms_connector_fill_modes(struct drm_connector *drm_connector, uint32_t maxX, uint32_t maxY)
{
	struct nv50_connector *connector = to_nv50_connector(drm_connector);
	struct drm_device *dev = drm_connector->dev;
	int rval = 0;
	bool connected = false;
	struct drm_display_mode *mode, *t;
	struct edid *edid = NULL;

	NV50_DEBUG("%s\n", drm_get_connector_name(drm_connector));
	/* set all modes to the unverified state */
	list_for_each_entry_safe(mode, t, &drm_connector->modes, head)
		mode->status = MODE_UNVERIFIED;

	if (nv50_kms_connector_detect(drm_connector) == connector_status_connected)
		connected = true;

	if (connected)
		NV50_DEBUG("%s is connected\n", drm_get_connector_name(drm_connector));
	else
		NV50_DEBUG("%s is disconnected\n", drm_get_connector_name(drm_connector));

	/* Not all connnectors have an i2c channel. */
	if (connected && connector->i2c_chan)
		edid = (struct edid *) drm_do_probe_ddc_edid(&connector->i2c_chan->adapter);

	/* This will remove edid if needed. */
	drm_mode_connector_update_edid_property(drm_connector, edid);

	if (edid) {
		rval = drm_add_edid_modes(drm_connector, edid);

		/* Only update when relevant and when detect couldn't determine type. */
		nv50_kms_connector_set_digital(drm_connector, edid->digital ? 1 : 0, FALSE);

		kfree(edid);
	}

	if (rval) /* number of modes  > 1 */
		drm_mode_connector_list_update(drm_connector);

	if (maxX && maxY)
		drm_mode_validate_size(dev, &drm_connector->modes, maxX, maxY, 0);

	list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
		if (mode->status == MODE_OK) {
			struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
			struct nv50_output *output = connector->to_output(connector, nv50_kms_connector_get_digital(drm_connector));

			mode->status = output->validate_mode(output, hw_mode);
			/* find native mode, TODO: also check if we actually found one */
			if (mode->status == MODE_OK) {
				if (mode->type & DRM_MODE_TYPE_PREFERRED)
					*output->native_mode = *hw_mode;
			}
			kfree(hw_mode);
		}
	}

	/* revalidate now that we have native mode */
	list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
		if (mode->status == MODE_OK) {
			struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
			struct nv50_output *output = connector->to_output(connector, nv50_kms_connector_get_digital(drm_connector));

			mode->status = output->validate_mode(output, hw_mode);
			kfree(hw_mode);
		}
	}

	drm_mode_prune_invalid(dev, &drm_connector->modes, true);

	/* pruning is done, so bail out. */
	if (!connected)
		return;

	if (list_empty(&drm_connector->modes)) {
		struct drm_display_mode *stdmode;
		struct nouveau_hw_mode *hw_mode;
		struct nv50_output *output;

		NV50_DEBUG("No valid modes on %s\n", drm_get_connector_name(drm_connector));

		/* Making up native modes for LVDS is a bad idea. */
		if (drm_connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
			return;

		/* Should we do this here ???
		 * When no valid EDID modes are available we end up
		 * here and bailed in the past, now we add a standard
		 * 640x480@60Hz mode and carry on.
		 */
		stdmode = drm_mode_duplicate(dev, &std_mode[0]);
		drm_mode_probed_add(drm_connector, stdmode);
		drm_mode_list_concat(&drm_connector->probed_modes,
				     &drm_connector->modes);

		/* also add it as native mode */
		hw_mode = nv50_kms_to_hw_mode(mode);
		output = connector->to_output(connector, nv50_kms_connector_get_digital(drm_connector));

		if (hw_mode)
			*output->native_mode = *hw_mode;

		DRM_DEBUG("Adding standard 640x480 @ 60Hz to %s\n",
			  drm_get_connector_name(drm_connector));
	}

	drm_mode_sort(&drm_connector->modes);

	NV50_DEBUG("Probed modes for %s\n", drm_get_connector_name(drm_connector));

	list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
		mode->vrefresh = drm_mode_vrefresh(mode);

		/* is this needed, as it's unused by the driver? */
		drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
		drm_mode_debug_printmodeline(mode);
	}
}

static int nv50_kms_connector_set_property(struct drm_connector *drm_connector,
					struct drm_property *property,
					uint64_t value)
{
	struct drm_device *dev = drm_connector->dev;
	struct nv50_connector *connector = to_nv50_connector(drm_connector);
	int rval = 0;
	bool delay_change = false;

	/* DPMS */
	if (property == dev->mode_config.dpms_property && drm_connector->encoder) {
		struct nv50_output *output = to_nv50_output(drm_connector->encoder);

		rval = output->set_power_mode(output, (int) value);

		return rval;
	}

	/* Scaling mode */
	if (property == dev->mode_config.scaling_mode_property) {
		struct nv50_crtc *crtc = NULL;
		struct nv50_display *display = nv50_get_display(dev);
		int internal_value = 0;

		switch (value) {
			case DRM_MODE_SCALE_NON_GPU:
				internal_value = SCALE_NON_GPU;
				break;
			case DRM_MODE_SCALE_FULLSCREEN:
				internal_value = SCALE_FULLSCREEN;
				break;
			case DRM_MODE_SCALE_NO_SCALE:
				internal_value = SCALE_NOSCALE;
				break;
			case DRM_MODE_SCALE_ASPECT:
				internal_value = SCALE_ASPECT;
				break;
			default:
				break;
		}

		/* LVDS always needs gpu scaling */
		if (connector->type == CONNECTOR_LVDS && internal_value == SCALE_NON_GPU)
			return -EINVAL;

		connector->requested_scaling_mode = internal_value;

		if (drm_connector->encoder && drm_connector->encoder->crtc)
			crtc = to_nv50_crtc(drm_connector->encoder->crtc);

		if (!crtc)
			return 0;

		crtc->requested_scaling_mode = connector->requested_scaling_mode;

		/* going from and to a gpu scaled regime requires a modesetting, so wait until next modeset */
		if (crtc->scaling_mode == SCALE_NON_GPU || internal_value == SCALE_NON_GPU) {
			DRM_INFO("Moving from or to a non-gpu scaled mode, this will be processed upon next modeset.");
			delay_change = true;
		}

		if (delay_change)
			return 0;

		rval = crtc->set_scale(crtc);
		if (rval)
			return rval;