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
  25 #ifndef HW_VGA_INT_H
  26 #define HW_VGA_INT_H
  27
  28 #include "exec/ioport.h"
  29 #include "exec/memory.h"
  30
  31 #include "hw/display/bochs-vbe.h"
  32 #include "hw/acpi/acpi_aml_interface.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
  40 struct 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
  51 union vga_retrace {
  52     struct vga_precise_retrace precise;
  53 };
  54
  55 struct VGACommonState;
  56 typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s);
  57 typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s);
  58
  59 typedef struct VGADisplayParams {
  60     uint32_t line_offset;
  61     uint32_t start_addr;
  62     uint32_t line_compare;
  63 } VGADisplayParams;
  64
  65 typedef struct VGACommonState {
  66     MemoryRegion *legacy_address_space;
  67     uint8_t *vram_ptr;
  68     MemoryRegion vram;
  69     uint32_t vram_size;
  70     uint32_t vram_size_mb; /* property */
  71     uint32_t vbe_size;
  72     uint32_t vbe_size_mask;
  73     uint32_t latch;
  74     bool has_chain4_alias;
  75     MemoryRegion chain4_alias;
  76     uint8_t sr_index;
  77     uint8_t sr[256];
  78     uint8_t sr_vbe[256];
  79     uint8_t gr_index;
  80     uint8_t gr[256];
  81     uint8_t ar_index;
  82     uint8_t ar[21];
  83     int ar_flip_flop;
  84     uint8_t cr_index;
  85     uint8_t cr[256]; /* CRT registers */
  86     uint8_t msr; /* Misc Output Register */
  87     uint8_t fcr; /* Feature Control Register */
  88     uint8_t st00; /* status 0 */
  89     uint8_t st01; /* status 1 */
  90     uint8_t dac_state;
  91     uint8_t dac_sub_index;
  92     uint8_t dac_read_index;
  93     uint8_t dac_write_index;
  94     uint8_t dac_cache[3]; /* used when writing */
  95     int dac_8bit;
  96     uint8_t palette[768];
  97     int32_t bank_offset;
  98     int (*get_bpp)(struct VGACommonState *s);
  99     void (*get_params)(struct VGACommonState *s, VGADisplayParams *params);
 100     void (*get_resolution)(struct VGACommonState *s,
 101                         int *pwidth,
 102                         int *pheight);
 103     PortioList vga_port_list;
 104     PortioList vbe_port_list;
 105     /* bochs vbe state */
 106     uint16_t vbe_index;
 107     uint16_t vbe_regs[VBE_DISPI_INDEX_NB];
 108     uint32_t vbe_start_addr;
 109     uint32_t vbe_line_offset;
 110     uint32_t vbe_bank_mask;
 111     /* display refresh support */
 112     QemuConsole *con;
 113     uint32_t font_offsets[2];
 114     int graphic_mode;
 115     uint8_t shift_control;
 116     uint8_t double_scan;
 117     VGADisplayParams params;
 118     uint32_t plane_updated;
 119     uint32_t last_line_offset;
 120     uint8_t last_cw, last_ch;
 121     uint32_t last_width, last_height; /* in chars or pixels */
 122     uint32_t last_scr_width, last_scr_height; /* in pixels */
 123     uint32_t last_depth; /* in bits */
 124     bool last_byteswap;
 125     bool force_shadow;
 126     uint8_t cursor_start, cursor_end;
 127     bool cursor_visible_phase;
 128     int64_t cursor_blink_time;
 129     uint32_t cursor_offset;
 130     const GraphicHwOps *hw_ops;
 131     bool full_update_text;
 132     bool full_update_gfx;
 133     bool big_endian_fb;
 134     bool default_endian_fb;
 135     bool global_vmstate;
 136     /* hardware mouse cursor support */
 137     uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
 138     uint32_t hw_cursor_x;
 139     uint32_t hw_cursor_y;
 140     void (*cursor_invalidate)(struct VGACommonState *s);
 141     void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y);
 142     /* tell for each page if it has been updated since the last time */
 143     uint32_t last_palette[256];
 144     uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
 145     /* retrace */
 146     vga_retrace_fn retrace;
 147     vga_update_retrace_info_fn update_retrace_info;
 148     union vga_retrace retrace_info;
 149     uint8_t is_vbe_vmstate;
 150 } VGACommonState;
 151
 152 static inline int c6_to_8(int v)
 153 {
 154     int b;
 155     v &= 0x3f;
 156     b = v & 1;
 157     return (v << 2) | (b << 1) | b;
 158 }
 159
 160 bool vga_common_init(VGACommonState *s, Object *obj, Error **errp);
 161 void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space,
 162               MemoryRegion *address_space_io, bool init_vga_ports);
 163 MemoryRegion *vga_init_io(VGACommonState *s, Object *obj,
 164                           const MemoryRegionPortio **vga_ports,
 165                           const MemoryRegionPortio **vbe_ports);
 166 void vga_common_reset(VGACommonState *s);
 167
 168 void vga_dirty_log_start(VGACommonState *s);
 169 void vga_dirty_log_stop(VGACommonState *s);
 170
 171 extern const VMStateDescription vmstate_vga_common;
 172 uint32_t vga_ioport_read(void *opaque, uint32_t addr);
 173 void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 174 uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr);
 175 void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val);
 176 void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
 177
 178 int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
 179
 180 uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr);
 181 void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val);
 182 void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val);
 183
 184 extern const uint8_t sr_mask[8];
 185 extern const uint8_t gr_mask[16];
 186
 187 #define VGABIOS_FILENAME "vgabios.bin"
 188 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
 189
 190 extern const MemoryRegionOps vga_mem_ops;
 191
 192 /* vga-pci.c */
 193 void pci_std_vga_mmio_region_init(VGACommonState *s,
 194                                   Object *owner,
 195                                   MemoryRegion *parent,
 196                                   MemoryRegion *subs,
 197                                   bool qext, bool edid);
 198
 199 void build_vga_aml(AcpiDevAmlIf *adev, Aml *scope);
 200 #endif