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 #define MSR_COLOR_EMULATION 0x01 25 #define MSR_PAGE_SELECT 0x20 26 27 #define ST01_V_RETRACE 0x08 28 #define ST01_DISP_ENABLE 0x01 29 30 /* bochs VBE support */ 31 #define CONFIG_BOCHS_VBE 32 33 #define VBE_DISPI_MAX_XRES 1600 34 #define VBE_DISPI_MAX_YRES 1200 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 48 49 #define VBE_DISPI_ID0 0xB0C0 50 #define VBE_DISPI_ID1 0xB0C1 51 #define VBE_DISPI_ID2 0xB0C2 52 #define VBE_DISPI_ID3 0xB0C3 53 #define VBE_DISPI_ID4 0xB0C4 54 55 #define VBE_DISPI_DISABLED 0x00 56 #define VBE_DISPI_ENABLED 0x01 57 #define VBE_DISPI_GETCAPS 0x02 58 #define VBE_DISPI_8BIT_DAC 0x20 59 #define VBE_DISPI_LFB_ENABLED 0x40 60 #define VBE_DISPI_NOCLEARMEM 0x80 61 62 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000 63 64 #ifdef CONFIG_BOCHS_VBE 65 66 #define VGA_STATE_COMMON_BOCHS_VBE \ 67 uint16_t vbe_index; \ 68 uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; \ 69 uint32_t vbe_start_addr; \ 70 uint32_t vbe_line_offset; \ 71 uint32_t vbe_bank_mask; 72 73 #else 74 75 #define VGA_STATE_COMMON_BOCHS_VBE 76 77 #endif /* !CONFIG_BOCHS_VBE */ 78 79 #define CH_ATTR_SIZE (160 * 100) 80 #define VGA_MAX_HEIGHT 2048 81 82 struct vga_precise_retrace { 83 int64_t ticks_per_char; 84 int64_t total_chars; 85 int htotal; 86 int hstart; 87 int hend; 88 int vstart; 89 int vend; 90 int freq; 91 }; 92 93 union vga_retrace { 94 struct vga_precise_retrace precise; 95 }; 96 97 struct VGACommonState; 98 typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s); 99 typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s); 100 101 typedef struct VGACommonState { 102 uint8_t *vram_ptr; 103 ram_addr_t vram_offset; 104 unsigned int vram_size; 105 uint32_t lfb_addr; 106 uint32_t lfb_end; 107 uint32_t map_addr; 108 uint32_t map_end; 109 uint32_t lfb_vram_mapped; /* whether 0xa0000 is mapped as ram */ 110 unsigned long bios_offset; 111 unsigned int bios_size; 112 int it_shift; 113 PCIDevice *pci_dev; 114 uint32_t latch; 115 uint8_t sr_index; 116 uint8_t sr[256]; 117 uint8_t gr_index; 118 uint8_t gr[256]; 119 uint8_t ar_index; 120 uint8_t ar[21]; 121 int ar_flip_flop; 122 uint8_t cr_index; 123 uint8_t cr[256]; /* CRT registers */ 124 uint8_t msr; /* Misc Output Register */ 125 uint8_t fcr; /* Feature Control Register */ 126 uint8_t st00; /* status 0 */ 127 uint8_t st01; /* status 1 */ 128 uint8_t dac_state; 129 uint8_t dac_sub_index; 130 uint8_t dac_read_index; 131 uint8_t dac_write_index; 132 uint8_t dac_cache[3]; /* used when writing */ 133 int dac_8bit; 134 uint8_t palette[768]; 135 int32_t bank_offset; 136 int vga_io_memory; 137 int (*get_bpp)(struct VGACommonState *s); 138 void (*get_offsets)(struct VGACommonState *s, 139 uint32_t *pline_offset, 140 uint32_t *pstart_addr, 141 uint32_t *pline_compare); 142 void (*get_resolution)(struct VGACommonState *s, 143 int *pwidth, 144 int *pheight); 145 VGA_STATE_COMMON_BOCHS_VBE 146 /* display refresh support */ 147 DisplayState *ds; 148 uint32_t font_offsets[2]; 149 int graphic_mode; 150 uint8_t shift_control; 151 uint8_t double_scan; 152 uint32_t line_offset; 153 uint32_t line_compare; 154 uint32_t start_addr; 155 uint32_t plane_updated; 156 uint32_t last_line_offset; 157 uint8_t last_cw, last_ch; 158 uint32_t last_width, last_height; /* in chars or pixels */ 159 uint32_t last_scr_width, last_scr_height; /* in pixels */ 160 uint32_t last_depth; /* in bits */ 161 uint8_t cursor_start, cursor_end; 162 uint32_t cursor_offset; 163 unsigned int (*rgb_to_pixel)(unsigned int r, 164 unsigned int g, unsigned b); 165 vga_hw_update_ptr update; 166 vga_hw_invalidate_ptr invalidate; 167 vga_hw_screen_dump_ptr screen_dump; 168 vga_hw_text_update_ptr text_update; 169 /* hardware mouse cursor support */ 170 uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; 171 void (*cursor_invalidate)(struct VGACommonState *s); 172 void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y); 173 /* tell for each page if it has been updated since the last time */ 174 uint32_t last_palette[256]; 175 uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */ 176 /* retrace */ 177 vga_retrace_fn retrace; 178 vga_update_retrace_info_fn update_retrace_info; 179 union vga_retrace retrace_info; 180 } VGACommonState; 181 182 typedef VGACommonState VGAState; 183 184 static inline int c6_to_8(int v) 185 { 186 int b; 187 v &= 0x3f; 188 b = v & 1; 189 return (v << 2) | (b << 1) | b; 190 } 191 192 void vga_common_init(VGAState *s, int vga_ram_size); 193 void vga_init(VGAState *s); 194 void vga_reset(void *s); 195 196 void vga_dirty_log_start(VGAState *s); 197 198 uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr); 199 void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val); 200 void vga_invalidate_scanlines(VGAState *s, int y1, int y2); 201 int ppm_save(const char *filename, struct DisplaySurface *ds); 202 203 void vga_draw_cursor_line_8(uint8_t *d1, const uint8_t *src1, 204 int poffset, int w, 205 unsigned int color0, unsigned int color1, 206 unsigned int color_xor); 207 void vga_draw_cursor_line_16(uint8_t *d1, const uint8_t *src1, 208 int poffset, int w, 209 unsigned int color0, unsigned int color1, 210 unsigned int color_xor); 211 void vga_draw_cursor_line_32(uint8_t *d1, const uint8_t *src1, 212 int poffset, int w, 213 unsigned int color0, unsigned int color1, 214 unsigned int color_xor); 215 216 extern const uint8_t sr_mask[8]; 217 extern const uint8_t gr_mask[16]; 218