/* * QEMU internal VGA defines. * * Copyright (c) 2003-2004 Fabrice Bellard * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include <hw/hw.h> #include "memory.h" #define ST01_V_RETRACE 0x08 #define ST01_DISP_ENABLE 0x01 /* bochs VBE support */ #define CONFIG_BOCHS_VBE #define VBE_DISPI_MAX_XRES 1600 #define VBE_DISPI_MAX_YRES 1200 #define VBE_DISPI_MAX_BPP 32 #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_NB 0xa /* size of vbe_regs[] */ #define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa /* read-only, not in vbe_regs */ #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_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 #ifdef CONFIG_BOCHS_VBE #define VGA_STATE_COMMON_BOCHS_VBE \ uint16_t vbe_index; \ uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; \ uint32_t vbe_start_addr; \ uint32_t vbe_line_offset; \ uint32_t vbe_bank_mask; \ int vbe_mapped; #else #define VGA_STATE_COMMON_BOCHS_VBE #endif /* !CONFIG_BOCHS_VBE */ #define CH_ATTR_SIZE (160 * 100) #define VGA_MAX_HEIGHT 2048 struct vga_precise_retrace { int64_t ticks_per_char; int64_t total_chars; int htotal; int hstart; int hend; int vstart; int vend; int freq; }; union vga_retrace { struct vga_precise_retrace precise; }; struct VGACommonState; typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s); typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s); typedef struct VGACommonState { MemoryRegion *legacy_address_space; uint8_t *vram_ptr; MemoryRegion vram; uint32_t vram_size; uint32_t latch; MemoryRegion *chain4_alias; uint8_t sr_index; uint8_t sr[256]; uint8_t gr_index; uint8_t gr[256]; uint8_t ar_index; uint8_t ar[21]; int ar_flip_flop; uint8_t cr_index; uint8_t cr[256]; /* CRT registers */ uint8_t msr; /* Misc Output Register */ uint8_t fcr; /* Feature Control Register */ uint8_t st00; /* status 0 */ uint8_t st01; /* status 1 */ uint8_t dac_state; uint8_t dac_sub_index; uint8_t dac_read_index; uint8_t dac_write_index; uint8_t dac_cache[3]; /* used when writing */ int dac_8bit; uint8_t palette[768]; int32_t bank_offset; int (*get_bpp)(struct VGACommonState *s); void (*get_offsets)(struct VGACommonState *s, uint32_t *pline_offset, uint32_t *pstart_addr, uint32_t *pline_compare); void (*get_resolution)(struct VGACommonState *s, int *pwidth, int *pheight); VGA_STATE_COMMON_BOCHS_VBE /* display refresh support */ DisplayState *ds; uint32_t font_offsets[2]; int graphic_mode; uint8_t shift_control; uint8_t double_scan; uint32_t line_offset; uint32_t line_compare; uint32_t start_addr; uint32_t plane_updated; uint32_t last_line_offset; uint8_t last_cw, last_ch; uint32_t last_width, last_height; /* in chars or pixels */ uint32_t last_scr_width, last_scr_height; /* in pixels */ uint32_t last_depth; /* in bits */ uint8_t cursor_start, cursor_end; uint32_t cursor_offset; unsigned int (*rgb_to_pixel)(unsigned int r, unsigned int g, unsigned b); vga_hw_update_ptr update; vga_hw_invalidate_ptr invalidate; vga_hw_screen_dump_ptr screen_dump; vga_hw_text_update_ptr text_update; /* hardware mouse cursor support */ uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; void (*cursor_invalidate)(struct VGACommonState *s); void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y); /* tell for each page if it has been updated since the last time */ uint32_t last_palette[256]; uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */ /* retrace */ vga_retrace_fn retrace; vga_update_retrace_info_fn update_retrace_info; union vga_retrace retrace_info; uint8_t is_vbe_vmstate; } VGACommonState; static inline int c6_to_8(int v) { int b; v &= 0x3f; b = v & 1; return (v << 2) | (b << 1) | b; } void vga_common_init(VGACommonState *s, int vga_ram_size); void vga_init(VGACommonState *s, MemoryRegion *address_space, MemoryRegion *address_space_io, bool init_vga_ports); MemoryRegion *vga_init_io(VGACommonState *s, const MemoryRegionPortio **vga_ports, const MemoryRegionPortio **vbe_ports); void vga_common_reset(VGACommonState *s); void vga_dirty_log_start(VGACommonState *s); void vga_dirty_log_stop(VGACommonState *s); extern const VMStateDescription vmstate_vga_common; uint32_t vga_ioport_read(void *opaque, uint32_t addr); void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val); uint32_t vga_mem_readb(VGACommonState *s, target_phys_addr_t addr); void vga_mem_writeb(VGACommonState *s, target_phys_addr_t addr, uint32_t val); void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2); int ppm_save(const char *filename, struct DisplaySurface *ds); int vga_ioport_invalid(VGACommonState *s, uint32_t addr); void vga_init_vbe(VGACommonState *s, MemoryRegion *address_space); extern const uint8_t sr_mask[8]; extern const uint8_t gr_mask[16]; #define VGA_RAM_SIZE (8192 * 1024) #define VGABIOS_FILENAME "vgabios.bin" #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin" extern const MemoryRegionOps vga_mem_ops;