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 25 #ifndef HW_VGA_INT_H 26 #define HW_VGA_INT_H 27 28 #include "hw/hw.h" 29 #include "exec/memory.h" 30 31 #define ST01_V_RETRACE 0x08 32 #define ST01_DISP_ENABLE 0x01 33 34 #define VBE_DISPI_MAX_XRES 16000 35 #define VBE_DISPI_MAX_YRES 12000 36 #define VBE_DISPI_MAX_BPP 32 37 38 #define VBE_DISPI_INDEX_ID 0x0 39 #define VBE_DISPI_INDEX_XRES 0x1 40 #define VBE_DISPI_INDEX_YRES 0x2 41 #define VBE_DISPI_INDEX_BPP 0x3 42 #define VBE_DISPI_INDEX_ENABLE 0x4 43 #define VBE_DISPI_INDEX_BANK 0x5 44 #define VBE_DISPI_INDEX_VIRT_WIDTH 0x6 45 #define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7 46 #define VBE_DISPI_INDEX_X_OFFSET 0x8 47 #define VBE_DISPI_INDEX_Y_OFFSET 0x9 48 #define VBE_DISPI_INDEX_NB 0xa /* size of vbe_regs[] */ 49 #define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa /* read-only, not in vbe_regs */ 50 51 #define VBE_DISPI_ID0 0xB0C0 52 #define VBE_DISPI_ID1 0xB0C1 53 #define VBE_DISPI_ID2 0xB0C2 54 #define VBE_DISPI_ID3 0xB0C3 55 #define VBE_DISPI_ID4 0xB0C4 56 #define VBE_DISPI_ID5 0xB0C5 57 58 #define VBE_DISPI_DISABLED 0x00 59 #define VBE_DISPI_ENABLED 0x01 60 #define VBE_DISPI_GETCAPS 0x02 61 #define VBE_DISPI_8BIT_DAC 0x20 62 #define VBE_DISPI_LFB_ENABLED 0x40 63 #define VBE_DISPI_NOCLEARMEM 0x80 64 65 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000 66 67 #define CH_ATTR_SIZE (160 * 100) 68 #define VGA_MAX_HEIGHT 2048 69 70 struct vga_precise_retrace { 71 int64_t ticks_per_char; 72 int64_t total_chars; 73 int htotal; 74 int hstart; 75 int hend; 76 int vstart; 77 int vend; 78 int freq; 79 }; 80 81 union vga_retrace { 82 struct vga_precise_retrace precise; 83 }; 84 85 struct VGACommonState; 86 typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s); 87 typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s); 88 89 typedef struct VGACommonState { 90 MemoryRegion *legacy_address_space; 91 uint8_t *vram_ptr; 92 MemoryRegion vram; 93 MemoryRegion vram_vbe; 94 uint32_t vram_size; 95 uint32_t vram_size_mb; /* property */ 96 uint32_t vbe_size; 97 uint32_t vbe_size_mask; 98 uint32_t latch; 99 bool has_chain4_alias; 100 MemoryRegion chain4_alias; 101 uint8_t sr_index; 102 uint8_t sr[256]; 103 uint8_t sr_vbe[256]; 104 uint8_t gr_index; 105 uint8_t gr[256]; 106 uint8_t ar_index; 107 uint8_t ar[21]; 108 int ar_flip_flop; 109 uint8_t cr_index; 110 uint8_t cr[256]; /* CRT registers */ 111 uint8_t msr; /* Misc Output Register */ 112 uint8_t fcr; /* Feature Control Register */ 113 uint8_t st00; /* status 0 */ 114 uint8_t st01; /* status 1 */ 115 uint8_t dac_state; 116 uint8_t dac_sub_index; 117 uint8_t dac_read_index; 118 uint8_t dac_write_index; 119 uint8_t dac_cache[3]; /* used when writing */ 120 int dac_8bit; 121 uint8_t palette[768]; 122 int32_t bank_offset; 123 int (*get_bpp)(struct VGACommonState *s); 124 void (*get_offsets)(struct VGACommonState *s, 125 uint32_t *pline_offset, 126 uint32_t *pstart_addr, 127 uint32_t *pline_compare); 128 void (*get_resolution)(struct VGACommonState *s, 129 int *pwidth, 130 int *pheight); 131 PortioList vga_port_list; 132 PortioList vbe_port_list; 133 /* bochs vbe state */ 134 uint16_t vbe_index; 135 uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; 136 uint32_t vbe_start_addr; 137 uint32_t vbe_line_offset; 138 uint32_t vbe_bank_mask; 139 int vbe_mapped; 140 /* display refresh support */ 141 QemuConsole *con; 142 uint32_t font_offsets[2]; 143 int graphic_mode; 144 uint8_t shift_control; 145 uint8_t double_scan; 146 uint32_t line_offset; 147 uint32_t line_compare; 148 uint32_t start_addr; 149 uint32_t plane_updated; 150 uint32_t last_line_offset; 151 uint8_t last_cw, last_ch; 152 uint32_t last_width, last_height; /* in chars or pixels */ 153 uint32_t last_scr_width, last_scr_height; /* in pixels */ 154 uint32_t last_depth; /* in bits */ 155 bool last_byteswap; 156 bool force_shadow; 157 uint8_t cursor_start, cursor_end; 158 bool cursor_visible_phase; 159 int64_t cursor_blink_time; 160 uint32_t cursor_offset; 161 const GraphicHwOps *hw_ops; 162 bool full_update_text; 163 bool full_update_gfx; 164 bool big_endian_fb; 165 bool default_endian_fb; 166 /* hardware mouse cursor support */ 167 uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; 168 uint32_t hw_cursor_x; 169 uint32_t hw_cursor_y; 170 void (*cursor_invalidate)(struct VGACommonState *s); 171 void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y); 172 /* tell for each page if it has been updated since the last time */ 173 uint32_t last_palette[256]; 174 uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */ 175 /* retrace */ 176 vga_retrace_fn retrace; 177 vga_update_retrace_info_fn update_retrace_info; 178 union vga_retrace retrace_info; 179 uint8_t is_vbe_vmstate; 180 } VGACommonState; 181 182 static inline int c6_to_8(int v) 183 { 184 int b; 185 v &= 0x3f; 186 b = v & 1; 187 return (v << 2) | (b << 1) | b; 188 } 189 190 void vga_common_init(VGACommonState *s, Object *obj, bool global_vmstate); 191 void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space, 192 MemoryRegion *address_space_io, bool init_vga_ports); 193 MemoryRegion *vga_init_io(VGACommonState *s, Object *obj, 194 const MemoryRegionPortio **vga_ports, 195 const MemoryRegionPortio **vbe_ports); 196 void vga_common_reset(VGACommonState *s); 197 198 void vga_sync_dirty_bitmap(VGACommonState *s); 199 void vga_dirty_log_start(VGACommonState *s); 200 void vga_dirty_log_stop(VGACommonState *s); 201 202 extern const VMStateDescription vmstate_vga_common; 203 uint32_t vga_ioport_read(void *opaque, uint32_t addr); 204 void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val); 205 uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr); 206 void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val); 207 void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2); 208 209 int vga_ioport_invalid(VGACommonState *s, uint32_t addr); 210 211 void vga_init_vbe(VGACommonState *s, Object *obj, MemoryRegion *address_space); 212 uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr); 213 void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val); 214 void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val); 215 216 extern const uint8_t sr_mask[8]; 217 extern const uint8_t gr_mask[16]; 218 219 #define VGABIOS_FILENAME "vgabios.bin" 220 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin" 221 222 extern const MemoryRegionOps vga_mem_ops; 223 224 /* vga-pci.c */ 225 void pci_std_vga_mmio_region_init(VGACommonState *s, 226 MemoryRegion *parent, 227 MemoryRegion *subs, 228 bool qext); 229 230 #endif 231