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#include "hw/display/bochs-vbe.h"
  33
  34#define ST01_V_RETRACE      0x08
  35#define ST01_DISP_ENABLE    0x01
  36
  37#define CH_ATTR_SIZE (160 * 100)
  38#define VGA_MAX_HEIGHT 2048
  39
  40struct vga_precise_retrace {
  41    int64_t ticks_per_char;
  42    int64_t total_chars;
  43    int htotal;
  44    int hstart;
  45    int hend;
  46    int vstart;
  47    int vend;
  48    int freq;
  49};
  50
  51union vga_retrace {
  52    struct vga_precise_retrace precise;
  53};
  54
  55struct VGACommonState;
  56typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s);
  57typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s);
  58
  59typedef struct VGACommonState {
  60    MemoryRegion *legacy_address_space;
  61    uint8_t *vram_ptr;
  62    MemoryRegion vram;
  63    MemoryRegion vram_vbe;
  64    uint32_t vram_size;
  65    uint32_t vram_size_mb; /* property */
  66    uint32_t vbe_size;
  67    uint32_t vbe_size_mask;
  68    uint32_t latch;
  69    bool has_chain4_alias;
  70    MemoryRegion chain4_alias;
  71    uint8_t sr_index;
  72    uint8_t sr[256];
  73    uint8_t sr_vbe[256];
  74    uint8_t gr_index;
  75    uint8_t gr[256];
  76    uint8_t ar_index;
  77    uint8_t ar[21];
  78    int ar_flip_flop;
  79    uint8_t cr_index;
  80    uint8_t cr[256]; /* CRT registers */
  81    uint8_t msr; /* Misc Output Register */
  82    uint8_t fcr; /* Feature Control Register */
  83    uint8_t st00; /* status 0 */
  84    uint8_t st01; /* status 1 */
  85    uint8_t dac_state;
  86    uint8_t dac_sub_index;
  87    uint8_t dac_read_index;
  88    uint8_t dac_write_index;
  89    uint8_t dac_cache[3]; /* used when writing */
  90    int dac_8bit;
  91    uint8_t palette[768];
  92    int32_t bank_offset;
  93    int (*get_bpp)(struct VGACommonState *s);
  94    void (*get_offsets)(struct VGACommonState *s,
  95                        uint32_t *pline_offset,
  96                        uint32_t *pstart_addr,
  97                        uint32_t *pline_compare);
  98    void (*get_resolution)(struct VGACommonState *s,
  99                        int *pwidth,
 100                        int *pheight);
 101    PortioList vga_port_list;
 102    PortioList vbe_port_list;
 103    /* bochs vbe state */
 104    uint16_t vbe_index;
 105    uint16_t vbe_regs[VBE_DISPI_INDEX_NB];
 106    uint32_t vbe_start_addr;
 107    uint32_t vbe_line_offset;
 108    uint32_t vbe_bank_mask;
 109    int vbe_mapped;
 110    /* display refresh support */
 111    QemuConsole *con;
 112    uint32_t font_offsets[2];
 113    int graphic_mode;
 114    uint8_t shift_control;
 115    uint8_t double_scan;
 116    uint32_t line_offset;
 117    uint32_t line_compare;
 118    uint32_t start_addr;
 119    uint32_t plane_updated;
 120    uint32_t last_line_offset;
 121    uint8_t last_cw, last_ch;
 122    uint32_t last_width, last_height; /* in chars or pixels */
 123    uint32_t last_scr_width, last_scr_height; /* in pixels */
 124    uint32_t last_depth; /* in bits */
 125    bool last_byteswap;
 126    bool force_shadow;
 127    uint8_t cursor_start, cursor_end;
 128    bool cursor_visible_phase;
 129    int64_t cursor_blink_time;
 130    uint32_t cursor_offset;
 131    const GraphicHwOps *hw_ops;
 132    bool full_update_text;
 133    bool full_update_gfx;
 134    bool big_endian_fb;
 135    bool default_endian_fb;
 136    bool global_vmstate;
 137    /* hardware mouse cursor support */
 138    uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
 139    uint32_t hw_cursor_x;
 140    uint32_t hw_cursor_y;
 141    void (*cursor_invalidate)(struct VGACommonState *s);
 142    void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y);
 143    /* tell for each page if it has been updated since the last time */
 144    uint32_t last_palette[256];
 145    uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
 146    /* retrace */
 147    vga_retrace_fn retrace;
 148    vga_update_retrace_info_fn update_retrace_info;
 149    union vga_retrace retrace_info;
 150    uint8_t is_vbe_vmstate;
 151} VGACommonState;
 152
 153static inline int c6_to_8(int v)
 154{
 155    int b;
 156    v &= 0x3f;
 157    b = v & 1;
 158    return (v << 2) | (b << 1) | b;
 159}
 160
 161void vga_common_init(VGACommonState *s, Object *obj);
 162void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space,
 163              MemoryRegion *address_space_io, bool init_vga_ports);
 164MemoryRegion *vga_init_io(VGACommonState *s, Object *obj,
 165                          const MemoryRegionPortio **vga_ports,
 166                          const MemoryRegionPortio **vbe_ports);
 167void vga_common_reset(VGACommonState *s);
 168
 169void vga_dirty_log_start(VGACommonState *s);
 170void vga_dirty_log_stop(VGACommonState *s);
 171
 172extern const VMStateDescription vmstate_vga_common;
 173uint32_t vga_ioport_read(void *opaque, uint32_t addr);
 174void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 175uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr);
 176void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val);
 177void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
 178
 179int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
 180
 181void vga_init_vbe(VGACommonState *s, Object *obj, MemoryRegion *address_space);
 182uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr);
 183void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val);
 184void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val);
 185
 186extern const uint8_t sr_mask[8];
 187extern const uint8_t gr_mask[16];
 188
 189#define VGABIOS_FILENAME "vgabios.bin"
 190#define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
 191
 192extern const MemoryRegionOps vga_mem_ops;
 193
 194/* vga-pci.c */
 195void pci_std_vga_mmio_region_init(VGACommonState *s,
 196                                  Object *owner,
 197                                  MemoryRegion *parent,
 198                                  MemoryRegion *subs,
 199                                  bool qext, bool edid);
 200
 201#endif
 202