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 "exec/ioport.h" 29 #include "exec/memory.h" 30 #include "ui/console.h" 31 32 #include "hw/display/bochs-vbe.h" 33 34 #define ST01_V_RETRACE 0x08 35 #define ST01_DISP_ENABLE 0x01 36 37 #define CH_ATTR_SIZE (160 * 100) 38 #define VGA_MAX_HEIGHT 2048 39 40 struct vga_precise_retrace { 41 int64_t ticks_per_char; 42 int64_t total_chars; 43 int htotal; 44 int hstart; 45 int hend; 46 int vstart; 47 int vend; 48 int freq; 49 }; 50 51 union vga_retrace { 52 struct vga_precise_retrace precise; 53 }; 54 55 struct VGACommonState; 56 typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s); 57 typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s); 58 59 typedef struct VGACommonState { 60 MemoryRegion *legacy_address_space; 61 uint8_t *vram_ptr; 62 MemoryRegion vram; 63 MemoryRegion vram_vbe; 64 uint32_t vram_size; 65 uint32_t vram_size_mb; /* property */ 66 uint32_t vbe_size; 67 uint32_t vbe_size_mask; 68 uint32_t latch; 69 bool has_chain4_alias; 70 MemoryRegion chain4_alias; 71 uint8_t sr_index; 72 uint8_t sr[256]; 73 uint8_t sr_vbe[256]; 74 uint8_t gr_index; 75 uint8_t gr[256]; 76 uint8_t ar_index; 77 uint8_t ar[21]; 78 int ar_flip_flop; 79 uint8_t cr_index; 80 uint8_t cr[256]; /* CRT registers */ 81 uint8_t msr; /* Misc Output Register */ 82 uint8_t fcr; /* Feature Control Register */ 83 uint8_t st00; /* status 0 */ 84 uint8_t st01; /* status 1 */ 85 uint8_t dac_state; 86 uint8_t dac_sub_index; 87 uint8_t dac_read_index; 88 uint8_t dac_write_index; 89 uint8_t dac_cache[3]; /* used when writing */ 90 int dac_8bit; 91 uint8_t palette[768]; 92 int32_t bank_offset; 93 int (*get_bpp)(struct VGACommonState *s); 94 void (*get_offsets)(struct VGACommonState *s, 95 uint32_t *pline_offset, 96 uint32_t *pstart_addr, 97 uint32_t *pline_compare); 98 void (*get_resolution)(struct VGACommonState *s, 99 int *pwidth, 100 int *pheight); 101 PortioList vga_port_list; 102 PortioList vbe_port_list; 103 /* bochs vbe state */ 104 uint16_t vbe_index; 105 uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; 106 uint32_t vbe_start_addr; 107 uint32_t vbe_line_offset; 108 uint32_t vbe_bank_mask; 109 int vbe_mapped; 110 /* display refresh support */ 111 QemuConsole *con; 112 uint32_t font_offsets[2]; 113 int graphic_mode; 114 uint8_t shift_control; 115 uint8_t double_scan; 116 uint32_t line_offset; 117 uint32_t line_compare; 118 uint32_t start_addr; 119 uint32_t plane_updated; 120 uint32_t last_line_offset; 121 uint8_t last_cw, last_ch; 122 uint32_t last_width, last_height; /* in chars or pixels */ 123 uint32_t last_scr_width, last_scr_height; /* in pixels */ 124 uint32_t last_depth; /* in bits */ 125 bool last_byteswap; 126 bool force_shadow; 127 uint8_t cursor_start, cursor_end; 128 bool cursor_visible_phase; 129 int64_t cursor_blink_time; 130 uint32_t cursor_offset; 131 const GraphicHwOps *hw_ops; 132 bool full_update_text; 133 bool full_update_gfx; 134 bool big_endian_fb; 135 bool default_endian_fb; 136 bool global_vmstate; 137 /* hardware mouse cursor support */ 138 uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; 139 uint32_t hw_cursor_x; 140 uint32_t hw_cursor_y; 141 void (*cursor_invalidate)(struct VGACommonState *s); 142 void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y); 143 /* tell for each page if it has been updated since the last time */ 144 uint32_t last_palette[256]; 145 uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */ 146 /* retrace */ 147 vga_retrace_fn retrace; 148 vga_update_retrace_info_fn update_retrace_info; 149 union vga_retrace retrace_info; 150 uint8_t is_vbe_vmstate; 151 } VGACommonState; 152 153 static inline int c6_to_8(int v) 154 { 155 int b; 156 v &= 0x3f; 157 b = v & 1; 158 return (v << 2) | (b << 1) | b; 159 } 160 161 void vga_common_init(VGACommonState *s, Object *obj); 162 void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space, 163 MemoryRegion *address_space_io, bool init_vga_ports); 164 MemoryRegion *vga_init_io(VGACommonState *s, Object *obj, 165 const MemoryRegionPortio **vga_ports, 166 const MemoryRegionPortio **vbe_ports); 167 void vga_common_reset(VGACommonState *s); 168 169 void vga_sync_dirty_bitmap(VGACommonState *s); 170 void vga_dirty_log_start(VGACommonState *s); 171 void vga_dirty_log_stop(VGACommonState *s); 172 173 extern const VMStateDescription vmstate_vga_common; 174 uint32_t vga_ioport_read(void *opaque, uint32_t addr); 175 void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val); 176 uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr); 177 void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val); 178 void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2); 179 180 int vga_ioport_invalid(VGACommonState *s, uint32_t addr); 181 182 void vga_init_vbe(VGACommonState *s, Object *obj, MemoryRegion *address_space); 183 uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr); 184 void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val); 185 void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val); 186 187 extern const uint8_t sr_mask[8]; 188 extern const uint8_t gr_mask[16]; 189 190 #define VGABIOS_FILENAME "vgabios.bin" 191 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin" 192 193 extern const MemoryRegionOps vga_mem_ops; 194 195 /* vga-pci.c */ 196 void pci_std_vga_mmio_region_init(VGACommonState *s, 197 Object *owner, 198 MemoryRegion *parent, 199 MemoryRegion *subs, 200 bool qext, bool edid); 201 202 #endif 203