mirrors/Bochs
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
100b097c29
Bochs/bochs/iodev/display/vga.h
Volker Ruppert d46a9b7205 Some work on the PCI devices code. 
- Since the pci_read_handler() method is identical in most devices, move it
  to the base class to reduce code duplication. Only the 'pcidev' device has
  it's own implementation (NOTE: it is not maintained yet).
- Minor other fixes and cleanups in some PCI devices.
2017-03-24 19:57:25 +00:00

177 lines
6.2 KiB
C++
Raw Blame History

/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002-2017 The Bochs Project
// PCI VGA dummy adapter Copyright (C) 2002,2003 Mike Nordell
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
//
/////////////////////////////////////////////////////////////////////////
#ifndef BX_IODEV_VGA_H
#define BX_IODEV_VGA_H
// Bochs VBE definitions
#define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB 16
#define VBE_DISPI_4BPP_PLANE_SHIFT 22
#define VBE_DISPI_BANK_ADDRESS 0xA0000
#define VBE_DISPI_BANK_SIZE_KB 64
#define VBE_DISPI_MAX_XRES 2560
#define VBE_DISPI_MAX_YRES 1600
#define VBE_DISPI_MAX_BPP 32
#define VBE_DISPI_IOPORT_INDEX 0x01CE
#define VBE_DISPI_IOPORT_DATA 0x01CF
#define VBE_DISPI_INDEX_ID 0x0
#define VBE_DISPI_INDEX_XRES 0x1
#define VBE_DISPI_INDEX_YRES 0x2
#define VBE_DISPI_INDEX_BPP 0x3
#define VBE_DISPI_INDEX_ENABLE 0x4
#define VBE_DISPI_INDEX_BANK 0x5
#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
#define VBE_DISPI_INDEX_X_OFFSET 0x8
#define VBE_DISPI_INDEX_Y_OFFSET 0x9
#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
#define VBE_DISPI_ID0 0xB0C0
#define VBE_DISPI_ID1 0xB0C1
#define VBE_DISPI_ID2 0xB0C2
#define VBE_DISPI_ID3 0xB0C3
#define VBE_DISPI_ID4 0xB0C4
#define VBE_DISPI_ID5 0xB0C5
#define VBE_DISPI_BPP_4 0x04
#define VBE_DISPI_BPP_8 0x08
#define VBE_DISPI_BPP_15 0x0F
#define VBE_DISPI_BPP_16 0x10
#define VBE_DISPI_BPP_24 0x18
#define VBE_DISPI_BPP_32 0x20
#define VBE_DISPI_DISABLED 0x00
#define VBE_DISPI_ENABLED 0x01
#define VBE_DISPI_GETCAPS 0x02
#define VBE_DISPI_8BIT_DAC 0x20
#define VBE_DISPI_LFB_ENABLED 0x40
#define VBE_DISPI_NOCLEARMEM 0x80
#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
#define VBE_DISPI_TOTAL_VIDEO_MEMORY_KB (VBE_DISPI_TOTAL_VIDEO_MEMORY_MB * 1024)
#define VBE_DISPI_TOTAL_VIDEO_MEMORY_BYTES (VBE_DISPI_TOTAL_VIDEO_MEMORY_KB * 1024)
// End Bochs VBE definitions
#if BX_USE_VGA_SMF
# define BX_VGA_SMF static
# define BX_VGA_THIS theVga->
# define BX_VGA_THIS_PTR theVga
#else
# define BX_VGA_SMF
# define BX_VGA_THIS this->
# define BX_VGA_THIS_PTR this
#endif
class bx_vga_c : public bx_vgacore_c {
public:
bx_vga_c();
virtual ~bx_vga_c();
virtual void reset(unsigned type);
BX_VGA_SMF bx_bool mem_read_handler(bx_phy_address addr, unsigned len, void *data, void *param);
BX_VGA_SMF bx_bool mem_write_handler(bx_phy_address addr, unsigned len, void *data, void *param);
virtual Bit8u mem_read(bx_phy_address addr);
virtual void mem_write(bx_phy_address addr, Bit8u value);
virtual void register_state(void);
virtual void after_restore_state(void);
virtual void redraw_area(unsigned x0, unsigned y0,
unsigned width, unsigned height);
virtual void init_vga_extension(void);
virtual void refresh_display(void *this_ptr, bx_bool redraw);
static void timer_handler(void *);
#if BX_USE_VGA_SMF == 0
BX_VGA_SMF void timer(void);
#endif
#if BX_SUPPORT_PCI
virtual void pci_write_handler(Bit8u address, Bit32u value, unsigned io_len);
#endif
#if BX_DEBUGGER
virtual void debug_dump(int argc, char **argv);
#endif
static Bit64s vga_param_handler(bx_param_c *param, int set, Bit64s val);
protected:
static void write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
#if BX_USE_VGA_SMF
static void write_handler_no_log(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
#endif
void write(Bit32u address, Bit32u value, unsigned io_len, bx_bool no_log);
BX_VGA_SMF void update(void);
// Bochs VBE section
#if BX_SUPPORT_PCI
virtual bx_bool vbe_set_base_addr(Bit32u *addr, Bit8u *pci_conf);
#endif
BX_VGA_SMF Bit8u vbe_mem_read(bx_phy_address addr) BX_CPP_AttrRegparmN(1);
BX_VGA_SMF void vbe_mem_write(bx_phy_address addr, Bit8u value) BX_CPP_AttrRegparmN(2);
static Bit32u vbe_read_handler(void *this_ptr, Bit32u address, unsigned io_len);
static void vbe_write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
#if BX_USE_VGA_SMF == 0
Bit32u vbe_read(Bit32u address, unsigned io_len);
void vbe_write(Bit32u address, Bit32u value, unsigned io_len, bx_bool no_log);
#endif
private:
bx_bool vbe_present;
struct {
Bit16u cur_dispi;
Bit32u base_address;
Bit16u xres;
Bit16u yres;
Bit16u bpp;
Bit16u max_xres;
Bit16u max_yres;
Bit16u max_bpp;
Bit16u bank;
bx_bool enabled;
Bit16u curindex;
Bit32u visible_screen_size; /**< in bytes */
Bit16u offset_x; /**< Virtual screen x start (in pixels) */
Bit16u offset_y; /**< Virtual screen y start (in pixels) */
Bit16u virtual_xres;
Bit16u virtual_yres;
Bit32u virtual_start; /**< For dealing with bpp>8, this is where the virtual screen starts. */
Bit8u bpp_multiplier; /**< We have to save this b/c sometimes we need to recalculate stuff with it. */
bx_bool lfb_enabled;
bx_bool get_capabilities;
bx_bool dac_8bit;
} vbe; // VBE state information
};
#endif
Reference in New Issue View Git Blame Copy Permalink