HostVga Class Reference

A VGA console. More...

Inheritance diagram for HostVga:

Classes
struct	putcdata
struct	View

Public Types
enum	{   MAXVIEWS = 16, MAXCLIENTS = 64, TIME_TAG = 3, TEXTMODE = 0,   BACKEND_OFFSET = 0x3000, BACKEND_SIZE = 8*0x1000 }

Public Member Functions
bool	receive (MessageConsole &msg)
bool	receive (MessageInput &msg)
	HostVga (Motherboard &mb, char *backend, unsigned modifier_switch, unsigned modifier_system, unsigned refresh_freq)
Public Member Functions inherited from StaticReceiver< HostVga >
	StaticReceiver ()
Public Member Functions inherited from Device
void	debug_dump ()
	Device (const char *debug_name)

Static Public Member Functions
static void	do_work (void *t) REGPARM(0) NORETURN
Static Public Member Functions inherited from StaticReceiver< HostVga >
static bool	receive_static (Device *o, M &msg)

Private Member Functions
void	set_vga_reg (unsigned short offset, unsigned char index, unsigned char value)
void	update_timer (Utcb &utcb)
bool	switch_client ()
unsigned	draw_console_tag ()
	Draw a tag for the console for a given time.
bool	handle_console_switching (MessageInput &msg)
	Switches the console with the _modifier_switch.
bool	handle_system_keys (MessageInput &msg)
	System keys handling.
bool	refresh_textmode (struct View *view, Utcb &utcb)
void	work () __attribute__((noreturn))

Static Private Member Functions
static void	console_putc (void *data, int value)
	The putc on a console, removes multiple whitespaces.

Private Attributes
Motherboard &	_mb
char *	_backend
char	_saved [BACKEND_SIZE]
char	_font [256 *16]
unsigned	_modifier_switch
unsigned	_modifier_system
unsigned	_refresh_freq
unsigned	_count
unsigned	_active_client
unsigned	_active_mode
unsigned short	_last_cursor_pos
unsigned short	_last_cursor_style
Vbe::ModeInfoBlock	_modeinfo
KernelSemaphore	_worker
timevalue	_lastswitchtime
char *	_graphic_ptr
bool	_measure
TimerProtocol *	_timer_service
struct {
const char *   clientname
unsigned short   num_views
unsigned short   active_view
unsigned short   module
View   views [MAXVIEWS]
}	_clients [MAXCLIENTS]

Detailed Description

A VGA console.

State: unstable Features: console switching, cursor, refresh, different views per client Missing: direct map to the client

Member Enumeration Documentation

anonymous enum

Enumerator:

MAXVIEWS
MAXCLIENTS
TIME_TAG
TEXTMODE
BACKEND_OFFSET
BACKEND_SIZE

Constructor & Destructor Documentation

HostVga::HostVga ( Motherboard &  mb, char *  backend, unsigned  modifier_switch, unsigned  modifier_system, unsigned  refresh_freq  )

inline

Member Function Documentation

static void HostVga::console_putc ( void *  data, int  value  )

inlinestaticprivate

The putc on a console, removes multiple whitespaces.

static void HostVga::do_work ( void *  t )

inlinestatic

unsigned HostVga::draw_console_tag ( )

inlineprivate

Draw a tag for the console for a given time.

bool HostVga::handle_console_switching ( MessageInput &  msg )

inlineprivate

Switches the console with the _modifier_switch.

bool HostVga::handle_system_keys ( MessageInput &  msg )

inlineprivate

System keys handling.

bool HostVga::receive ( MessageConsole &  msg )

inline

bool HostVga::receive ( MessageInput &  msg )

inline

bool HostVga::refresh_textmode ( struct View *  view, Utcb &  utcb  )

inlineprivate

void HostVga::set_vga_reg ( unsigned short  offset, unsigned char  index, unsigned char  value  )

inlineprivate

bool HostVga::switch_client ( )

inlineprivate

void HostVga::update_timer ( Utcb &  utcb )

inlineprivate

void HostVga::work ( )

inlineprivate

Member Data Documentation

unsigned HostVga::_active_client

private

unsigned HostVga::_active_mode

private

char* HostVga::_backend

private

struct { ... } HostVga::_clients[MAXCLIENTS]

unsigned HostVga::_count

private

char HostVga::_font[256 *16]

private

char* HostVga::_graphic_ptr

private

unsigned short HostVga::_last_cursor_pos

private

unsigned short HostVga::_last_cursor_style

private

timevalue HostVga::_lastswitchtime

private

Motherboard& HostVga::_mb

private

bool HostVga::_measure

private

Vbe::ModeInfoBlock HostVga::_modeinfo

private

unsigned HostVga::_modifier_switch

private

unsigned HostVga::_modifier_system

private

unsigned HostVga::_refresh_freq

private

char HostVga::_saved[BACKEND_SIZE]

private

TimerProtocol* HostVga::_timer_service

private

KernelSemaphore HostVga::_worker

private

unsigned short HostVga::active_view

const char* HostVga::clientname

unsigned short HostVga::module

unsigned short HostVga::num_views

View HostVga::views[MAXVIEWS]

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The documentation for this class was generated from the following file:

• base/host/hostvga.cc