Vga Class Reference

A VGA compatible device. More...

Inheritance diagram for Vga:

Public Member Functions
bool	receive (MessageBios &msg)
bool	receive (MessageIOOut &msg)
bool	receive (MessageIOIn &msg)
bool	receive (MessageMem &msg)
bool	receive (MessageMemRegion &msg)
bool	receive (MessageDiscovery &msg)
	Vga (Motherboard &mb, unsigned short iobase, char *framebuffer_ptr, unsigned long framebuffer_phys, unsigned long framebuffer_size)
Public Member Functions inherited from StaticReceiver< Vga >
	StaticReceiver ()
Public Member Functions inherited from Device
void	debug_dump ()
	Device (const char *debug_name)

Private Types
enum	{ LOW_BASE = 0xa0000, LOW_SIZE = 1<<17, TEXT_OFFSET = 0x18000 >> 1, EBDA_FONT_OFFSET = 0x1000 }

Private Member Functions
void	puts_guest (const char *msg)
void	update_cursor (unsigned page, unsigned pos)
	Update the cursor of a page and sync the hardware cursor with the one of the active page.
unsigned	get_page (unsigned page)
	Get the page offset.
unsigned	get_pos (unsigned page)
	Return the text mode cursor position in characters for a given page.
bool	handle_reset (bool show)
unsigned	get_vesa_mode (unsigned vesa_mode, ConsoleModeInfo *info)
bool	handle_vesa (CpuState *cpu)
bool	handle_int10 (MessageBios &msg)
	Graphic INT.

Static Private Member Functions
static unsigned	vesa_farptr (CpuState *cpu, void *p, void *base)

Private Attributes
unsigned short	_view
unsigned short	_iobase
char *	_framebuffer_ptr
unsigned long	_framebuffer_phys
unsigned long	_framebuffer_size
VgaRegs	_regs
unsigned char	_crt_index
unsigned	_ebda_segment
unsigned	_vbe_mode

Additional Inherited Members
Public Types inherited from BiosCommon
enum	{ RESET_VECTOR = 0x100, MAX_VECTOR }
Static Public Member Functions inherited from StaticReceiver< Vga >
static bool	receive_static (Device *o, M &msg)
Static Public Member Functions inherited from DiscoveryHelper< BiosCommon >
static bool	discover (Device *o, MessageDiscovery &msg)
Public Attributes inherited from BiosCommon
Motherboard &	_mb
Protected Member Functions inherited from BiosCommon
void	write_bda (unsigned short offset, unsigned value, unsigned len)
	Write bios data helper.
unsigned	read_bda (unsigned offset)
	Read bios data helper.
bool	jmp_int (MessageBios &msg, unsigned char number)
	Jump to another realmode INT handler.
bool	jmp_hlt (MessageBios &msg)
void	error (MessageBios &msg, unsigned char errorcode)
	Set the usual error indication.
void	outb (unsigned short port, unsigned value)
	Out to IO-port.
	BiosCommon (Motherboard &mb)

Detailed Description

A VGA compatible device.

State: unstable Features: textmode 80x25 supported, cursor, VESA framebuffer Missing: plenty, e.g: PCI, IRQ, many BIOS functions, 8-bit graphic modes Documentation: FreeVGA chipset reference - vga.htm, Browns IRQ List

Member Enumeration Documentation

anonymous enum

private

Enumerator:

LOW_BASE
LOW_SIZE
TEXT_OFFSET
EBDA_FONT_OFFSET

Constructor & Destructor Documentation

Vga::Vga ( Motherboard &  mb, unsigned short  iobase, char *  framebuffer_ptr, unsigned long  framebuffer_phys, unsigned long  framebuffer_size  )

inline

Member Function Documentation

unsigned Vga::get_page ( unsigned  page )

inlineprivate

Get the page offset.

unsigned Vga::get_pos ( unsigned  page )

inlineprivate

Return the text mode cursor position in characters for a given page.

unsigned Vga::get_vesa_mode ( unsigned  vesa_mode, ConsoleModeInfo *  info  )

inlineprivate

bool Vga::handle_int10 ( MessageBios &  msg )

inlineprivate

Graphic INT.

bool Vga::handle_reset ( bool  show )

inlineprivate

bool Vga::handle_vesa ( CpuState *  cpu )

inlineprivate

void Vga::puts_guest ( const char *  msg )

inlineprivate

bool Vga::receive ( MessageBios &  msg )

inline

bool Vga::receive ( MessageIOOut &  msg )

inline

bool Vga::receive ( MessageIOIn &  msg )

inline

bool Vga::receive ( MessageMem &  msg )

inline

bool Vga::receive ( MessageMemRegion &  msg )

inline

bool Vga::receive ( MessageDiscovery &  msg )

inline

void Vga::update_cursor ( unsigned  page, unsigned  pos  )

inlineprivate

Update the cursor of a page and sync the hardware cursor with the one of the active page.

static unsigned Vga::vesa_farptr ( CpuState *  cpu, void *  p, void *  base  )

inlinestaticprivate

Member Data Documentation

unsigned char Vga::_crt_index

private

unsigned Vga::_ebda_segment

private

unsigned long Vga::_framebuffer_phys

private

char* Vga::_framebuffer_ptr

private

unsigned long Vga::_framebuffer_size

private

unsigned short Vga::_iobase

private

VgaRegs Vga::_regs

private

unsigned Vga::_vbe_mode

private

unsigned short Vga::_view

private

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

• vancouver/model/vga.cc