175 lines
6.3 KiB
C++
175 lines
6.3 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2002-2012 The Bochs Project
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// PCI VGA dummy adapter Copyright (C) 2002,2003 Mike Nordell
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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//
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/////////////////////////////////////////////////////////////////////////
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#ifndef BX_IODEV_VGA_H
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#define BX_IODEV_VGA_H
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// Bochs VBE definitions
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#define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB 16
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#define VBE_DISPI_4BPP_PLANE_SHIFT 22
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#define VBE_DISPI_BANK_ADDRESS 0xA0000
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#define VBE_DISPI_BANK_SIZE_KB 64
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#define VBE_DISPI_MAX_XRES 2560
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#define VBE_DISPI_MAX_YRES 1600
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#define VBE_DISPI_MAX_BPP 32
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#define VBE_DISPI_IOPORT_INDEX 0x01CE
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#define VBE_DISPI_IOPORT_DATA 0x01CF
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#define VBE_DISPI_INDEX_ID 0x0
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#define VBE_DISPI_INDEX_XRES 0x1
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#define VBE_DISPI_INDEX_YRES 0x2
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#define VBE_DISPI_INDEX_BPP 0x3
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#define VBE_DISPI_INDEX_ENABLE 0x4
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#define VBE_DISPI_INDEX_BANK 0x5
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#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
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#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
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#define VBE_DISPI_INDEX_X_OFFSET 0x8
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#define VBE_DISPI_INDEX_Y_OFFSET 0x9
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#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
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#define VBE_DISPI_ID0 0xB0C0
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#define VBE_DISPI_ID1 0xB0C1
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#define VBE_DISPI_ID2 0xB0C2
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#define VBE_DISPI_ID3 0xB0C3
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#define VBE_DISPI_ID4 0xB0C4
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#define VBE_DISPI_ID5 0xB0C5
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#define VBE_DISPI_BPP_4 0x04
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#define VBE_DISPI_BPP_8 0x08
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#define VBE_DISPI_BPP_15 0x0F
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#define VBE_DISPI_BPP_16 0x10
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#define VBE_DISPI_BPP_24 0x18
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#define VBE_DISPI_BPP_32 0x20
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#define VBE_DISPI_DISABLED 0x00
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#define VBE_DISPI_ENABLED 0x01
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#define VBE_DISPI_GETCAPS 0x02
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#define VBE_DISPI_8BIT_DAC 0x20
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#define VBE_DISPI_LFB_ENABLED 0x40
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#define VBE_DISPI_NOCLEARMEM 0x80
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#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
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#define VBE_DISPI_TOTAL_VIDEO_MEMORY_KB (VBE_DISPI_TOTAL_VIDEO_MEMORY_MB * 1024)
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#define VBE_DISPI_TOTAL_VIDEO_MEMORY_BYTES (VBE_DISPI_TOTAL_VIDEO_MEMORY_KB * 1024)
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// End Bochs VBE definitions
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#if BX_USE_VGA_SMF
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# define BX_VGA_SMF static
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# define BX_VGA_THIS theVga->
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# define BX_VGA_THIS_PTR theVga
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#else
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# define BX_VGA_SMF
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# define BX_VGA_THIS this->
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# define BX_VGA_THIS_PTR this
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#endif
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class bx_vga_c : public bx_vgacore_c {
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public:
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bx_vga_c();
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virtual ~bx_vga_c();
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virtual void reset(unsigned type);
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BX_VGA_SMF bx_bool mem_read_handler(bx_phy_address addr, unsigned len, void *data, void *param);
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BX_VGA_SMF bx_bool mem_write_handler(bx_phy_address addr, unsigned len, void *data, void *param);
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virtual Bit8u mem_read(bx_phy_address addr);
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virtual void mem_write(bx_phy_address addr, Bit8u value);
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virtual void register_state(void);
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virtual void after_restore_state(void);
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virtual void redraw_area(unsigned x0, unsigned y0,
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unsigned width, unsigned height);
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virtual int get_snapshot_mode(void);
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virtual Bit32u get_gfx_snapshot(Bit8u **snapshot_ptr, Bit8u **palette_ptr,
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unsigned *iHeight, unsigned *iWidth, unsigned *iDepth);
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virtual void init_vga_extension(void);
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static void timer_handler(void *);
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#if BX_USE_VGA_SMF == 0
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BX_VGA_SMF void timer(void);
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#endif
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#if BX_SUPPORT_PCI
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virtual Bit32u pci_read_handler(Bit8u address, unsigned io_len);
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virtual void pci_write_handler(Bit8u address, Bit32u value, unsigned io_len);
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#endif
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static Bit64s vga_param_handler(bx_param_c *param, int set, Bit64s val);
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protected:
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static void write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
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#if BX_USE_VGA_SMF
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static void write_handler_no_log(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
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#endif
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void write(Bit32u address, Bit32u value, unsigned io_len, bx_bool no_log);
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BX_VGA_SMF void update(void);
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// Bochs VBE section
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virtual bx_bool vbe_set_base_addr(Bit32u *addr, Bit8u *pci_conf);
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BX_VGA_SMF Bit8u vbe_mem_read(bx_phy_address addr) BX_CPP_AttrRegparmN(1);
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BX_VGA_SMF void vbe_mem_write(bx_phy_address addr, Bit8u value) BX_CPP_AttrRegparmN(2);
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static Bit32u vbe_read_handler(void *this_ptr, Bit32u address, unsigned io_len);
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static void vbe_write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
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#if BX_USE_VGA_SMF == 0
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Bit32u vbe_read(Bit32u address, unsigned io_len);
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void vbe_write(Bit32u address, Bit32u value, unsigned io_len, bx_bool no_log);
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#endif
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private:
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bx_bool vbe_present;
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struct {
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Bit16u cur_dispi;
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Bit32u base_address;
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Bit16u xres;
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Bit16u yres;
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Bit16u bpp;
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Bit16u max_xres;
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Bit16u max_yres;
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Bit16u max_bpp;
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Bit16u bank;
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bx_bool enabled;
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Bit16u curindex;
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Bit32u visible_screen_size; /**< in bytes */
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Bit16u offset_x; /**< Virtual screen x start (in pixels) */
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Bit16u offset_y; /**< Virtual screen y start (in pixels) */
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Bit16u virtual_xres;
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Bit16u virtual_yres;
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Bit32u virtual_start; /**< For dealing with bpp>8, this is where the virtual screen starts. */
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Bit8u bpp_multiplier; /**< We have to save this b/c sometimes we need to recalculate stuff with it. */
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bx_bool lfb_enabled;
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bx_bool get_capabilities;
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bx_bool dac_8bit;
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} vbe; // VBE state information
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};
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#endif
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