1 /* 2 * QEMU internal VGA defines. 3 * 4 * Copyright (c) 2003-2004 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 #ifndef HW_VGA_INT_H 25 #define HW_VGA_INT_H 1 26 27 #include <hw/hw.h> 28 #include "exec/memory.h" 29 30 #define ST01_V_RETRACE 0x08 31 #define ST01_DISP_ENABLE 0x01 32 33 #define VBE_DISPI_MAX_XRES 16000 34 #define VBE_DISPI_MAX_YRES 12000 35 #define VBE_DISPI_MAX_BPP 32 36 37 #define VBE_DISPI_INDEX_ID 0x0 38 #define VBE_DISPI_INDEX_XRES 0x1 39 #define VBE_DISPI_INDEX_YRES 0x2 40 #define VBE_DISPI_INDEX_BPP 0x3 41 #define VBE_DISPI_INDEX_ENABLE 0x4 42 #define VBE_DISPI_INDEX_BANK 0x5 43 #define VBE_DISPI_INDEX_VIRT_WIDTH 0x6 44 #define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7 45 #define VBE_DISPI_INDEX_X_OFFSET 0x8 46 #define VBE_DISPI_INDEX_Y_OFFSET 0x9 47 #define VBE_DISPI_INDEX_NB 0xa /* size of vbe_regs[] */ 48 #define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa /* read-only, not in vbe_regs */ 49 50 #define VBE_DISPI_ID0 0xB0C0 51 #define VBE_DISPI_ID1 0xB0C1 52 #define VBE_DISPI_ID2 0xB0C2 53 #define VBE_DISPI_ID3 0xB0C3 54 #define VBE_DISPI_ID4 0xB0C4 55 #define VBE_DISPI_ID5 0xB0C5 56 57 #define VBE_DISPI_DISABLED 0x00 58 #define VBE_DISPI_ENABLED 0x01 59 #define VBE_DISPI_GETCAPS 0x02 60 #define VBE_DISPI_8BIT_DAC 0x20 61 #define VBE_DISPI_LFB_ENABLED 0x40 62 #define VBE_DISPI_NOCLEARMEM 0x80 63 64 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000 65 66 #define CH_ATTR_SIZE (160 * 100) 67 #define VGA_MAX_HEIGHT 2048 68 69 struct vga_precise_retrace { 70 int64_t ticks_per_char; 71 int64_t total_chars; 72 int htotal; 73 int hstart; 74 int hend; 75 int vstart; 76 int vend; 77 int freq; 78 }; 79 80 union vga_retrace { 81 struct vga_precise_retrace precise; 82 }; 83 84 struct VGACommonState; 85 typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s); 86 typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s); 87 88 typedef struct VGACommonState { 89 MemoryRegion *legacy_address_space; 90 uint8_t *vram_ptr; 91 MemoryRegion vram; 92 MemoryRegion vram_vbe; 93 uint32_t vram_size; 94 uint32_t vram_size_mb; /* property */ 95 uint32_t vbe_size; 96 uint32_t latch; 97 bool has_chain4_alias; 98 MemoryRegion chain4_alias; 99 uint8_t sr_index; 100 uint8_t sr[256]; 101 uint8_t gr_index; 102 uint8_t gr[256]; 103 uint8_t ar_index; 104 uint8_t ar[21]; 105 int ar_flip_flop; 106 uint8_t cr_index; 107 uint8_t cr[256]; /* CRT registers */ 108 uint8_t msr; /* Misc Output Register */ 109 uint8_t fcr; /* Feature Control Register */ 110 uint8_t st00; /* status 0 */ 111 uint8_t st01; /* status 1 */ 112 uint8_t dac_state; 113 uint8_t dac_sub_index; 114 uint8_t dac_read_index; 115 uint8_t dac_write_index; 116 uint8_t dac_cache[3]; /* used when writing */ 117 int dac_8bit; 118 uint8_t palette[768]; 119 int32_t bank_offset; 120 int (*get_bpp)(struct VGACommonState *s); 121 void (*get_offsets)(struct VGACommonState *s, 122 uint32_t *pline_offset, 123 uint32_t *pstart_addr, 124 uint32_t *pline_compare); 125 void (*get_resolution)(struct VGACommonState *s, 126 int *pwidth, 127 int *pheight); 128 PortioList vga_port_list; 129 PortioList vbe_port_list; 130 /* bochs vbe state */ 131 uint16_t vbe_index; 132 uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; 133 uint32_t vbe_start_addr; 134 uint32_t vbe_line_offset; 135 uint32_t vbe_bank_mask; 136 int vbe_mapped; 137 /* display refresh support */ 138 QemuConsole *con; 139 uint32_t font_offsets[2]; 140 int graphic_mode; 141 uint8_t shift_control; 142 uint8_t double_scan; 143 uint32_t line_offset; 144 uint32_t line_compare; 145 uint32_t start_addr; 146 uint32_t plane_updated; 147 uint32_t last_line_offset; 148 uint8_t last_cw, last_ch; 149 uint32_t last_width, last_height; /* in chars or pixels */ 150 uint32_t last_scr_width, last_scr_height; /* in pixels */ 151 uint32_t last_depth; /* in bits */ 152 bool last_byteswap; 153 bool force_shadow; 154 uint8_t cursor_start, cursor_end; 155 bool cursor_visible_phase; 156 int64_t cursor_blink_time; 157 uint32_t cursor_offset; 158 const GraphicHwOps *hw_ops; 159 bool full_update_text; 160 bool full_update_gfx; 161 bool big_endian_fb; 162 bool default_endian_fb; 163 /* hardware mouse cursor support */ 164 uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; 165 uint32_t hw_cursor_x; 166 uint32_t hw_cursor_y; 167 void (*cursor_invalidate)(struct VGACommonState *s); 168 void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y); 169 /* tell for each page if it has been updated since the last time */ 170 uint32_t last_palette[256]; 171 uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */ 172 /* retrace */ 173 vga_retrace_fn retrace; 174 vga_update_retrace_info_fn update_retrace_info; 175 union vga_retrace retrace_info; 176 uint8_t is_vbe_vmstate; 177 } VGACommonState; 178 179 static inline int c6_to_8(int v) 180 { 181 int b; 182 v &= 0x3f; 183 b = v & 1; 184 return (v << 2) | (b << 1) | b; 185 } 186 187 void vga_common_init(VGACommonState *s, Object *obj, bool global_vmstate); 188 void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space, 189 MemoryRegion *address_space_io, bool init_vga_ports); 190 MemoryRegion *vga_init_io(VGACommonState *s, Object *obj, 191 const MemoryRegionPortio **vga_ports, 192 const MemoryRegionPortio **vbe_ports); 193 void vga_common_reset(VGACommonState *s); 194 195 void vga_sync_dirty_bitmap(VGACommonState *s); 196 void vga_dirty_log_start(VGACommonState *s); 197 void vga_dirty_log_stop(VGACommonState *s); 198 199 extern const VMStateDescription vmstate_vga_common; 200 uint32_t vga_ioport_read(void *opaque, uint32_t addr); 201 void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val); 202 uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr); 203 void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val); 204 void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2); 205 206 int vga_ioport_invalid(VGACommonState *s, uint32_t addr); 207 208 void vga_init_vbe(VGACommonState *s, Object *obj, MemoryRegion *address_space); 209 uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr); 210 void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val); 211 void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val); 212 213 extern const uint8_t sr_mask[8]; 214 extern const uint8_t gr_mask[16]; 215 216 #define VGABIOS_FILENAME "vgabios.bin" 217 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin" 218 219 extern const MemoryRegionOps vga_mem_ops; 220 221 /* vga-pci.c */ 222 void pci_std_vga_mmio_region_init(VGACommonState *s, 223 MemoryRegion *parent, 224 MemoryRegion *subs, 225 bool qext); 226 227 #endif 228