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 #define VGA_STATE_COMMON \ 83 uint8_t *vram_ptr; \ 84 unsigned long vram_offset; \ 85 unsigned int vram_size; \ 86 unsigned long bios_offset; \ 87 unsigned int bios_size; \ 88 target_phys_addr_t base_ctrl; \ 89 int it_shift; \ 90 PCIDevice *pci_dev; \ 91 uint32_t latch; \ 92 uint8_t sr_index; \ 93 uint8_t sr[256]; \ 94 uint8_t gr_index; \ 95 uint8_t gr[256]; \ 96 uint8_t ar_index; \ 97 uint8_t ar[21]; \ 98 int ar_flip_flop; \ 99 uint8_t cr_index; \ 100 uint8_t cr[256]; /* CRT registers */ \ 101 uint8_t msr; /* Misc Output Register */ \ 102 uint8_t fcr; /* Feature Control Register */ \ 103 uint8_t st00; /* status 0 */ \ 104 uint8_t st01; /* status 1 */ \ 105 uint8_t dac_state; \ 106 uint8_t dac_sub_index; \ 107 uint8_t dac_read_index; \ 108 uint8_t dac_write_index; \ 109 uint8_t dac_cache[3]; /* used when writing */ \ 110 int dac_8bit; \ 111 uint8_t palette[768]; \ 112 int32_t bank_offset; \ 113 int (*get_bpp)(struct VGAState *s); \ 114 void (*get_offsets)(struct VGAState *s, \ 115 uint32_t *pline_offset, \ 116 uint32_t *pstart_addr, \ 117 uint32_t *pline_compare); \ 118 void (*get_resolution)(struct VGAState *s, \ 119 int *pwidth, \ 120 int *pheight); \ 121 VGA_STATE_COMMON_BOCHS_VBE \ 122 /* display refresh support */ \ 123 DisplayState *ds; \ 124 uint32_t font_offsets[2]; \ 125 int graphic_mode; \ 126 uint8_t shift_control; \ 127 uint8_t double_scan; \ 128 uint32_t line_offset; \ 129 uint32_t line_compare; \ 130 uint32_t start_addr; \ 131 uint32_t plane_updated; \ 132 uint8_t last_cw, last_ch; \ 133 uint32_t last_width, last_height; /* in chars or pixels */ \ 134 uint32_t last_scr_width, last_scr_height; /* in pixels */ \ 135 uint8_t cursor_start, cursor_end; \ 136 uint32_t cursor_offset; \ 137 unsigned int (*rgb_to_pixel)(unsigned int r, \ 138 unsigned int g, unsigned b); \ 139 vga_hw_update_ptr update; \ 140 vga_hw_invalidate_ptr invalidate; \ 141 vga_hw_screen_dump_ptr screen_dump; \ 142 /* hardware mouse cursor support */ \ 143 uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; \ 144 void (*cursor_invalidate)(struct VGAState *s); \ 145 void (*cursor_draw_line)(struct VGAState *s, uint8_t *d, int y); \ 146 /* tell for each page if it has been updated since the last time */ \ 147 uint32_t last_palette[256]; \ 148 uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */ 149 150 151 typedef struct VGAState { 152 VGA_STATE_COMMON 153 } VGAState; 154 155 static inline int c6_to_8(int v) 156 { 157 int b; 158 v &= 0x3f; 159 b = v & 1; 160 return (v << 2) | (b << 1) | b; 161 } 162 163 void vga_common_init(VGAState *s, DisplayState *ds, uint8_t *vga_ram_base, 164 unsigned long vga_ram_offset, int vga_ram_size); 165 void vga_init(VGAState *s); 166 uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr); 167 void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val); 168 void vga_invalidate_scanlines(VGAState *s, int y1, int y2); 169 int ppm_save(const char *filename, uint8_t *data, 170 int w, int h, int linesize); 171 172 void vga_draw_cursor_line_8(uint8_t *d1, const uint8_t *src1, 173 int poffset, int w, 174 unsigned int color0, unsigned int color1, 175 unsigned int color_xor); 176 void vga_draw_cursor_line_16(uint8_t *d1, const uint8_t *src1, 177 int poffset, int w, 178 unsigned int color0, unsigned int color1, 179 unsigned int color_xor); 180 void vga_draw_cursor_line_32(uint8_t *d1, const uint8_t *src1, 181 int poffset, int w, 182 unsigned int color0, unsigned int color1, 183 unsigned int color_xor); 184 185 extern const uint8_t sr_mask[8]; 186 extern const uint8_t gr_mask[16]; 187