hw/display/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 #ifndef HW_VGA_INT_H
  25 #define HW_VGA_INT_H 1
  26
  27 #include <hw/hw.h>
  28 #include "qapi/error.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 latch;
  98     bool has_chain4_alias;
  99     MemoryRegion chain4_alias;
 100     uint8_t sr_index;
 101     uint8_t sr[256];
 102     uint8_t gr_index;
 103     uint8_t gr[256];
 104     uint8_t ar_index;
 105     uint8_t ar[21];
 106     int ar_flip_flop;
 107     uint8_t cr_index;
 108     uint8_t cr[256]; /* CRT registers */
 109     uint8_t msr; /* Misc Output Register */
 110     uint8_t fcr; /* Feature Control Register */
 111     uint8_t st00; /* status 0 */
 112     uint8_t st01; /* status 1 */
 113     uint8_t dac_state;
 114     uint8_t dac_sub_index;
 115     uint8_t dac_read_index;
 116     uint8_t dac_write_index;
 117     uint8_t dac_cache[3]; /* used when writing */
 118     int dac_8bit;
 119     uint8_t palette[768];
 120     int32_t bank_offset;
 121     int (*get_bpp)(struct VGACommonState *s);
 122     void (*get_offsets)(struct VGACommonState *s,
 123                         uint32_t *pline_offset,
 124                         uint32_t *pstart_addr,
 125                         uint32_t *pline_compare);
 126     void (*get_resolution)(struct VGACommonState *s,
 127                         int *pwidth,
 128                         int *pheight);
 129     PortioList vga_port_list;
 130     PortioList vbe_port_list;
 131     /* bochs vbe state */
 132     uint16_t vbe_index;
 133     uint16_t vbe_regs[VBE_DISPI_INDEX_NB];
 134     uint32_t vbe_start_addr;
 135     uint32_t vbe_line_offset;
 136     uint32_t vbe_bank_mask;
 137     int vbe_mapped;
 138     /* display refresh support */
 139     QemuConsole *con;
 140     uint32_t font_offsets[2];
 141     int graphic_mode;
 142     uint8_t shift_control;
 143     uint8_t double_scan;
 144     uint32_t line_offset;
 145     uint32_t line_compare;
 146     uint32_t start_addr;
 147     uint32_t plane_updated;
 148     uint32_t last_line_offset;
 149     uint8_t last_cw, last_ch;
 150     uint32_t last_width, last_height; /* in chars or pixels */
 151     uint32_t last_scr_width, last_scr_height; /* in pixels */
 152     uint32_t last_depth; /* in bits */
 153     bool last_byteswap;
 154     bool force_shadow;
 155     uint8_t cursor_start, cursor_end;
 156     bool cursor_visible_phase;
 157     int64_t cursor_blink_time;
 158     uint32_t cursor_offset;
 159     const GraphicHwOps *hw_ops;
 160     bool full_update_text;
 161     bool full_update_gfx;
 162     bool big_endian_fb;
 163     bool default_endian_fb;
 164     /* hardware mouse cursor support */
 165     uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
 166     uint32_t hw_cursor_x;
 167     uint32_t hw_cursor_y;
 168     void (*cursor_invalidate)(struct VGACommonState *s);
 169     void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y);
 170     /* tell for each page if it has been updated since the last time */
 171     uint32_t last_palette[256];
 172     uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
 173     /* retrace */
 174     vga_retrace_fn retrace;
 175     vga_update_retrace_info_fn update_retrace_info;
 176     union vga_retrace retrace_info;
 177     uint8_t is_vbe_vmstate;
 178 } VGACommonState;
 179
 180 static inline int c6_to_8(int v)
 181 {
 182     int b;
 183     v &= 0x3f;
 184     b = v & 1;
 185     return (v << 2) | (b << 1) | b;
 186 }
 187
 188 void vga_common_init(VGACommonState *s, Object *obj, bool global_vmstate);
 189 void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space,
 190               MemoryRegion *address_space_io, bool init_vga_ports);
 191 MemoryRegion *vga_init_io(VGACommonState *s, Object *obj,
 192                           const MemoryRegionPortio **vga_ports,
 193                           const MemoryRegionPortio **vbe_ports);
 194 void vga_common_reset(VGACommonState *s);
 195
 196 void vga_sync_dirty_bitmap(VGACommonState *s);
 197 void vga_dirty_log_start(VGACommonState *s);
 198 void vga_dirty_log_stop(VGACommonState *s);
 199
 200 extern const VMStateDescription vmstate_vga_common;
 201 uint32_t vga_ioport_read(void *opaque, uint32_t addr);
 202 void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 203 uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr);
 204 void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val);
 205 void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
 206
 207 int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
 208
 209 void vga_init_vbe(VGACommonState *s, Object *obj, MemoryRegion *address_space);
 210 uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr);
 211 void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val);
 212 void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val);
 213
 214 extern const uint8_t sr_mask[8];
 215 extern const uint8_t gr_mask[16];
 216
 217 #define VGABIOS_FILENAME "vgabios.bin"
 218 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
 219
 220 extern const MemoryRegionOps vga_mem_ops;
 221
 222 #endif