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#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
  70struct 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
  81union vga_retrace {
  82    struct vga_precise_retrace precise;
  83};
  84
  85struct VGACommonState;
  86typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s);
  87typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s);
  88
  89typedef 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 latch;
  97    MemoryRegion *chain4_alias;
  98    uint8_t sr_index;
  99    uint8_t sr[256];
 100    uint8_t gr_index;
 101    uint8_t gr[256];
 102    uint8_t ar_index;
 103    uint8_t ar[21];
 104    int ar_flip_flop;
 105    uint8_t cr_index;
 106    uint8_t cr[256]; /* CRT registers */
 107    uint8_t msr; /* Misc Output Register */
 108    uint8_t fcr; /* Feature Control Register */
 109    uint8_t st00; /* status 0 */
 110    uint8_t st01; /* status 1 */
 111    uint8_t dac_state;
 112    uint8_t dac_sub_index;
 113    uint8_t dac_read_index;
 114    uint8_t dac_write_index;
 115    uint8_t dac_cache[3]; /* used when writing */
 116    int dac_8bit;
 117    uint8_t palette[768];
 118    int32_t bank_offset;
 119    int (*get_bpp)(struct VGACommonState *s);
 120    void (*get_offsets)(struct VGACommonState *s,
 121                        uint32_t *pline_offset,
 122                        uint32_t *pstart_addr,
 123                        uint32_t *pline_compare);
 124    void (*get_resolution)(struct VGACommonState *s,
 125                        int *pwidth,
 126                        int *pheight);
 127    /* bochs vbe state */
 128    uint16_t vbe_index;
 129    uint16_t vbe_regs[VBE_DISPI_INDEX_NB];
 130    uint32_t vbe_start_addr;
 131    uint32_t vbe_line_offset;
 132    uint32_t vbe_bank_mask;
 133    int vbe_mapped;
 134    /* display refresh support */
 135    QemuConsole *con;
 136    uint32_t font_offsets[2];
 137    int graphic_mode;
 138    uint8_t shift_control;
 139    uint8_t double_scan;
 140    uint32_t line_offset;
 141    uint32_t line_compare;
 142    uint32_t start_addr;
 143    uint32_t plane_updated;
 144    uint32_t last_line_offset;
 145    uint8_t last_cw, last_ch;
 146    uint32_t last_width, last_height; /* in chars or pixels */
 147    uint32_t last_scr_width, last_scr_height; /* in pixels */
 148    uint32_t last_depth; /* in bits */
 149    uint8_t cursor_start, cursor_end;
 150    bool cursor_visible_phase;
 151    int64_t cursor_blink_time;
 152    uint32_t cursor_offset;
 153    unsigned int (*rgb_to_pixel)(unsigned int r,
 154                                 unsigned int g, unsigned b);
 155    const GraphicHwOps *hw_ops;
 156    bool full_update_text;
 157    bool full_update_gfx;
 158    /* hardware mouse cursor support */
 159    uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
 160    void (*cursor_invalidate)(struct VGACommonState *s);
 161    void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y);
 162    /* tell for each page if it has been updated since the last time */
 163    uint32_t last_palette[256];
 164    uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
 165    /* retrace */
 166    vga_retrace_fn retrace;
 167    vga_update_retrace_info_fn update_retrace_info;
 168    union vga_retrace retrace_info;
 169    uint8_t is_vbe_vmstate;
 170} VGACommonState;
 171
 172static inline int c6_to_8(int v)
 173{
 174    int b;
 175    v &= 0x3f;
 176    b = v & 1;
 177    return (v << 2) | (b << 1) | b;
 178}
 179
 180void vga_common_init(VGACommonState *s, Object *obj);
 181void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space,
 182              MemoryRegion *address_space_io, bool init_vga_ports);
 183MemoryRegion *vga_init_io(VGACommonState *s, Object *obj,
 184                          const MemoryRegionPortio **vga_ports,
 185                          const MemoryRegionPortio **vbe_ports);
 186void vga_common_reset(VGACommonState *s);
 187
 188void vga_sync_dirty_bitmap(VGACommonState *s);
 189void vga_dirty_log_start(VGACommonState *s);
 190void vga_dirty_log_stop(VGACommonState *s);
 191
 192extern const VMStateDescription vmstate_vga_common;
 193uint32_t vga_ioport_read(void *opaque, uint32_t addr);
 194void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 195uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr);
 196void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val);
 197void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
 198
 199int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
 200
 201void vga_init_vbe(VGACommonState *s, Object *obj, MemoryRegion *address_space);
 202uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr);
 203void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val);
 204void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val);
 205
 206extern const uint8_t sr_mask[8];
 207extern const uint8_t gr_mask[16];
 208
 209#define VGABIOS_FILENAME "vgabios.bin"
 210#define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
 211
 212extern const MemoryRegionOps vga_mem_ops;
 213
 214#endif
 215