///////////////////////////////////////////////////////////////////////// // $Id$ ///////////////////////////////////////////////////////////////////////// // // Copyright (C) 2002-2009 The Bochs Project // // 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 // Make colour #define MAKE_COLOUR(red, red_shiftfrom, red_shiftto, red_mask, \ green, green_shiftfrom, green_shiftto, green_mask, \ blue, blue_shiftfrom, blue_shiftto, blue_mask) \ ( \ ((((red_shiftto) > (red_shiftfrom)) ? \ (red) << ((red_shiftto) - (red_shiftfrom)) : \ (red) >> ((red_shiftfrom) - (red_shiftto))) & \ (red_mask)) | \ ((((green_shiftto) > (green_shiftfrom)) ? \ (green) << ((green_shiftto) - (green_shiftfrom)) : \ (green) >> ((green_shiftfrom) - (green_shiftto))) & \ (green_mask)) | \ ((((blue_shiftto) > (blue_shiftfrom)) ? \ (blue) << ((blue_shiftto) - (blue_shiftfrom)) : \ (blue) >> ((blue_shiftfrom) - (blue_shiftto))) & \ (blue_mask)) \ ) // 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) #define BX_MAX_XRES VBE_DISPI_MAX_XRES #define BX_MAX_YRES VBE_DISPI_MAX_YRES // End Bochs VBE definitions #define X_TILESIZE 16 #define Y_TILESIZE 24 #define BX_NUM_X_TILES (BX_MAX_XRES /X_TILESIZE) #define BX_NUM_Y_TILES (BX_MAX_YRES /Y_TILESIZE) #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_vga_stub_c { public: bx_vga_c(); virtual ~bx_vga_c(); virtual void init(void); 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 trigger_timer(void *this_ptr); virtual void register_state(void); virtual void after_restore_state(void); #if BX_DEBUGGER virtual void debug_dump(void); #endif virtual void redraw_area(unsigned x0, unsigned y0, unsigned width, unsigned height); virtual int get_snapshot_mode(void); virtual void get_text_snapshot(Bit8u **text_snapshot, unsigned *txHeight, unsigned *txWidth); virtual Bit32u get_gfx_snapshot(Bit8u **snapshot_ptr, Bit8u **palette_ptr, unsigned *iHeight, unsigned *iWidth, unsigned *iDepth); virtual Bit8u get_actl_palette_idx(Bit8u index); virtual void init_vga_extension(void); static void timer_handler(void *); #if BX_USE_VGA_SMF == 0 BX_VGA_SMF void timer(void); #endif static Bit64s vga_param_handler(bx_param_c *param, int set, Bit64s val); protected: void init_standard_vga(void); void init_iohandlers(bx_read_handler_t f_read, bx_write_handler_t f_write); void init_systemtimer(bx_timer_handler_t f_timer, param_event_handler f_param); static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len); 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 #if BX_USE_VGA_SMF == 0 Bit32u read(Bit32u address, unsigned io_len); #endif void write(Bit32u address, Bit32u value, unsigned io_len, bx_bool no_log); BX_VGA_SMF Bit8u get_vga_pixel(Bit16u x, Bit16u y, Bit16u saddr, Bit16u lc, Bit8u **plane); BX_VGA_SMF void update(void); BX_VGA_SMF void determine_screen_dimensions(unsigned *piHeight, unsigned *piWidth); struct { struct { bx_bool color_emulation; // 1=color emulation, base address = 3Dx // 0=mono emulation, base address = 3Bx bx_bool enable_ram; // enable CPU access to video memory if set Bit8u clock_select; // 0=25Mhz 1=28Mhz bx_bool select_high_bank; // when in odd/even modes, select // high 64k bank if set bx_bool horiz_sync_pol; // bit6: negative if set bx_bool vert_sync_pol; // bit7: negative if set // bit7,bit6 represent number of lines on display: // 0 = reserved // 1 = 400 lines // 2 = 350 lines // 3 - 480 lines } misc_output; struct { Bit8u address; Bit8u reg[0x19]; bx_bool write_protect; } CRTC; struct { bx_bool flip_flop; /* 0 = address, 1 = data-write */ unsigned address; /* register number */ bx_bool video_enabled; Bit8u palette_reg[16]; Bit8u overscan_color; Bit8u color_plane_enable; Bit8u horiz_pel_panning; Bit8u color_select; struct { bx_bool graphics_alpha; bx_bool display_type; bx_bool enable_line_graphics; bx_bool blink_intensity; bx_bool pixel_panning_compat; bx_bool pixel_clock_select; bx_bool internal_palette_size; } mode_ctrl; } attribute_ctrl; struct { Bit8u write_data_register; Bit8u write_data_cycle; /* 0, 1, 2 */ Bit8u read_data_register; Bit8u read_data_cycle; /* 0, 1, 2 */ Bit8u dac_state; struct { Bit8u red; Bit8u green; Bit8u blue; } data[256]; Bit8u mask; } pel; struct { Bit8u index; Bit8u set_reset; Bit8u enable_set_reset; Bit8u color_compare; Bit8u data_rotate; Bit8u raster_op; Bit8u read_map_select; Bit8u write_mode; bx_bool read_mode; bx_bool odd_even; bx_bool chain_odd_even; Bit8u shift_reg; bx_bool graphics_alpha; Bit8u memory_mapping; /* 0 = use A0000-BFFFF * 1 = use A0000-AFFFF EGA/VGA graphics modes * 2 = use B0000-B7FFF Monochrome modes * 3 = use B8000-BFFFF CGA modes */ Bit8u color_dont_care; Bit8u bitmask; Bit8u latch[4]; } graphics_ctrl; struct { Bit8u index; Bit8u map_mask; bx_bool reset1; bx_bool reset2; Bit8u reg1; Bit8u char_map_select; bx_bool extended_mem; bx_bool odd_even; bx_bool chain_four; } sequencer; bx_bool vga_enabled; bx_bool vga_mem_updated; unsigned x_tilesize; unsigned y_tilesize; unsigned line_offset; unsigned line_compare; unsigned vertical_display_end; unsigned blink_counter; bx_bool vga_tile_updated[BX_NUM_X_TILES][BX_NUM_Y_TILES]; Bit8u *memory; Bit32u memsize; Bit8u text_snapshot[128 * 1024]; // current text snapshot Bit8u tile[X_TILESIZE * Y_TILESIZE * 4]; /**< Currently allocates the tile as large as needed. */ Bit16u charmap_address; bx_bool x_dotclockdiv2; bx_bool y_doublescan; Bit16u last_xres; Bit16u last_yres; Bit8u last_bpp; } s; // state information int timer_id; bx_bool extension_init; bx_bool pci_enabled; // Bochs VBE section virtual bx_bool vbe_set_base_addr(Bit32u *addr, Bit8u *pci_conf); 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: 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 }; #if BX_SUPPORT_CLGD54XX void bx_vga_set_smf_pointer(bx_vga_c *theVga_ptr); #endif #endif