hw/vga_int.h

   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 VGAState;
  98 typedef uint8_t (* vga_retrace_fn)(struct VGAState *s);
  99 typedef void (* vga_update_retrace_info_fn)(struct VGAState *s);
 100
 101 #define VGA_STATE_COMMON                                                \
 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 VGAState *s);                                 \
 138     void (*get_offsets)(struct VGAState *s,                             \
 139                         uint32_t *pline_offset,                         \
 140                         uint32_t *pstart_addr,                          \
 141                         uint32_t *pline_compare);                       \
 142     void (*get_resolution)(struct VGAState *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 VGAState *s);                      \
 172     void (*cursor_draw_line)(struct VGAState *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
 181
 182 typedef struct VGAState {
 183     VGA_STATE_COMMON
 184 } VGAState;
 185
 186 static inline int c6_to_8(int v)
 187 {
 188     int b;
 189     v &= 0x3f;
 190     b = v & 1;
 191     return (v << 2) | (b << 1) | b;
 192 }
 193
 194 void vga_common_init(VGAState *s, uint8_t *vga_ram_base,
 195                      ram_addr_t vga_ram_offset, int vga_ram_size);
 196 void vga_init(VGAState *s);
 197 void vga_reset(void *s);
 198
 199 void vga_dirty_log_start(VGAState *s);
 200 void vga_dirty_log_stop(VGAState *s);
 201
 202 uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr);
 203 void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val);
 204 void vga_invalidate_scanlines(VGAState *s, int y1, int y2);
 205 int ppm_save(const char *filename, struct DisplaySurface *ds);
 206
 207 void vga_draw_cursor_line_8(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_16(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 void vga_draw_cursor_line_32(uint8_t *d1, const uint8_t *src1,
 216                              int poffset, int w,
 217                              unsigned int color0, unsigned int color1,
 218                              unsigned int color_xor);
 219
 220 extern const uint8_t sr_mask[8];
 221 extern const uint8_t gr_mask[16];