LXR qemu/hw/display/vga

   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#define ST01_V_RETRACE      0x08
  33#define ST01_DISP_ENABLE    0x01
  34
  35#define VBE_DISPI_MAX_XRES              16000
  36#define VBE_DISPI_MAX_YRES              12000
  37#define VBE_DISPI_MAX_BPP               32
  38
  39#define VBE_DISPI_INDEX_ID              0x0
  40#define VBE_DISPI_INDEX_XRES            0x1
  41#define VBE_DISPI_INDEX_YRES            0x2
  42#define VBE_DISPI_INDEX_BPP             0x3
  43#define VBE_DISPI_INDEX_ENABLE          0x4
  44#define VBE_DISPI_INDEX_BANK            0x5
  45#define VBE_DISPI_INDEX_VIRT_WIDTH      0x6
  46#define VBE_DISPI_INDEX_VIRT_HEIGHT     0x7
  47#define VBE_DISPI_INDEX_X_OFFSET        0x8
  48#define VBE_DISPI_INDEX_Y_OFFSET        0x9
  49#define VBE_DISPI_INDEX_NB              0xa /* size of vbe_regs[] */
  50#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa /* read-only, not in vbe_regs */
  51
  52#define VBE_DISPI_ID0                   0xB0C0
  53#define VBE_DISPI_ID1                   0xB0C1
  54#define VBE_DISPI_ID2                   0xB0C2
  55#define VBE_DISPI_ID3                   0xB0C3
  56#define VBE_DISPI_ID4                   0xB0C4
  57#define VBE_DISPI_ID5                   0xB0C5
  58
  59#define VBE_DISPI_DISABLED              0x00
  60#define VBE_DISPI_ENABLED               0x01
  61#define VBE_DISPI_GETCAPS               0x02
  62#define VBE_DISPI_8BIT_DAC              0x20
  63#define VBE_DISPI_LFB_ENABLED           0x40
  64#define VBE_DISPI_NOCLEARMEM            0x80
  65
  66#define VBE_DISPI_LFB_PHYSICAL_ADDRESS  0xE0000000
  67
  68#define CH_ATTR_SIZE (160 * 100)
  69#define VGA_MAX_HEIGHT 2048
  70
  71struct vga_precise_retrace {
  72    int64_t ticks_per_char;
  73    int64_t total_chars;
  74    int htotal;
  75    int hstart;
  76    int hend;
  77    int vstart;
  78    int vend;
  79    int freq;
  80};
  81
  82union vga_retrace {
  83    struct vga_precise_retrace precise;
  84};
  85
  86struct VGACommonState;
  87typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s);
  88typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s);
  89
  90typedef struct VGACommonState {
  91    MemoryRegion *legacy_address_space;
  92    uint8_t *vram_ptr;
  93    MemoryRegion vram;
  94    MemoryRegion vram_vbe;
  95    uint32_t vram_size;
  96    uint32_t vram_size_mb; /* property */
  97    uint32_t vbe_size;
  98    uint32_t vbe_size_mask;
  99    uint32_t latch;
 100    bool has_chain4_alias;
 101    MemoryRegion chain4_alias;
 102    uint8_t sr_index;
 103    uint8_t sr[256];
 104    uint8_t sr_vbe[256];
 105    uint8_t gr_index;
 106    uint8_t gr[256];
 107    uint8_t ar_index;
 108    uint8_t ar[21];
 109    int ar_flip_flop;
 110    uint8_t cr_index;
 111    uint8_t cr[256]; /* CRT registers */
 112    uint8_t msr; /* Misc Output Register */
 113    uint8_t fcr; /* Feature Control Register */
 114    uint8_t st00; /* status 0 */
 115    uint8_t st01; /* status 1 */
 116    uint8_t dac_state;
 117    uint8_t dac_sub_index;
 118    uint8_t dac_read_index;
 119    uint8_t dac_write_index;
 120    uint8_t dac_cache[3]; /* used when writing */
 121    int dac_8bit;
 122    uint8_t palette[768];
 123    int32_t bank_offset;
 124    int (*get_bpp)(struct VGACommonState *s);
 125    void (*get_offsets)(struct VGACommonState *s,
 126                        uint32_t *pline_offset,
 127                        uint32_t *pstart_addr,
 128                        uint32_t *pline_compare);
 129    void (*get_resolution)(struct VGACommonState *s,
 130                        int *pwidth,
 131                        int *pheight);
 132    PortioList vga_port_list;
 133    PortioList vbe_port_list;
 134    /* bochs vbe state */
 135    uint16_t vbe_index;
 136    uint16_t vbe_regs[VBE_DISPI_INDEX_NB];
 137    uint32_t vbe_start_addr;
 138    uint32_t vbe_line_offset;
 139    uint32_t vbe_bank_mask;
 140    int vbe_mapped;
 141    /* display refresh support */
 142    QemuConsole *con;
 143    uint32_t font_offsets[2];
 144    int graphic_mode;
 145    uint8_t shift_control;
 146    uint8_t double_scan;
 147    uint32_t line_offset;
 148    uint32_t line_compare;
 149    uint32_t start_addr;
 150    uint32_t plane_updated;
 151    uint32_t last_line_offset;
 152    uint8_t last_cw, last_ch;
 153    uint32_t last_width, last_height; /* in chars or pixels */
 154    uint32_t last_scr_width, last_scr_height; /* in pixels */
 155    uint32_t last_depth; /* in bits */
 156    bool last_byteswap;
 157    bool force_shadow;
 158    uint8_t cursor_start, cursor_end;
 159    bool cursor_visible_phase;
 160    int64_t cursor_blink_time;
 161    uint32_t cursor_offset;
 162    const GraphicHwOps *hw_ops;
 163    bool full_update_text;
 164    bool full_update_gfx;
 165    bool big_endian_fb;
 166    bool default_endian_fb;
 167    /* hardware mouse cursor support */
 168    uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
 169    uint32_t hw_cursor_x;
 170    uint32_t hw_cursor_y;
 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    uint8_t is_vbe_vmstate;
 181} VGACommonState;
 182
 183static inline int c6_to_8(int v)
 184{
 185    int b;
 186    v &= 0x3f;
 187    b = v & 1;
 188    return (v << 2) | (b << 1) | b;
 189}
 190
 191void vga_common_init(VGACommonState *s, Object *obj, bool global_vmstate);
 192void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space,
 193              MemoryRegion *address_space_io, bool init_vga_ports);
 194MemoryRegion *vga_init_io(VGACommonState *s, Object *obj,
 195                          const MemoryRegionPortio **vga_ports,
 196                          const MemoryRegionPortio **vbe_ports);
 197void vga_common_reset(VGACommonState *s);
 198
 199void vga_sync_dirty_bitmap(VGACommonState *s);
 200void vga_dirty_log_start(VGACommonState *s);
 201void vga_dirty_log_stop(VGACommonState *s);
 202
 203extern const VMStateDescription vmstate_vga_common;
 204uint32_t vga_ioport_read(void *opaque, uint32_t addr);
 205void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 206uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr);
 207void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val);
 208void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
 209
 210int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
 211
 212void vga_init_vbe(VGACommonState *s, Object *obj, MemoryRegion *address_space);
 213uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr);
 214void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val);
 215void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val);
 216
 217extern const uint8_t sr_mask[8];
 218extern const uint8_t gr_mask[16];
 219
 220#define VGABIOS_FILENAME "vgabios.bin"
 221#define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
 222
 223extern const MemoryRegionOps vga_mem_ops;
 224
 225/* vga-pci.c */
 226void pci_std_vga_mmio_region_init(VGACommonState *s,
 227                                  MemoryRegion *parent,
 228                                  MemoryRegion *subs,
 229                                  bool qext);
 230
 231#endif
 232