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 "ui/console.h"
  29 #include "exec/ioport.h"
  30 #include "exec/memory.h"
  31
  32 #include "hw/display/bochs-vbe.h"
  33 #include "hw/acpi/acpi_aml_interface.h"
  34
  35 #define ST01_V_RETRACE      0x08
  36 #define ST01_DISP_ENABLE    0x01
  37
  38 #define CH_ATTR_SIZE (160 * 100)
  39 #define VGA_MAX_HEIGHT 2048
  40
  41 struct vga_precise_retrace {
  42     int64_t ticks_per_char;
  43     int64_t total_chars;
  44     int htotal;
  45     int hstart;
  46     int hend;
  47     int vstart;
  48     int vend;
  49     int freq;
  50 };
  51
  52 union vga_retrace {
  53     struct vga_precise_retrace precise;
  54 };
  55
  56 struct VGACommonState;
  57 typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s);
  58 typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s);
  59
  60 typedef struct VGADisplayParams {
  61     uint32_t line_offset;
  62     uint32_t start_addr;
  63     uint32_t line_compare;
  64     uint8_t  hpel;
  65     bool     hpel_split;
  66 } VGADisplayParams;
  67
  68 typedef struct VGACommonState {
  69     MemoryRegion *legacy_address_space;
  70     uint8_t *vram_ptr;
  71     MemoryRegion vram;
  72     uint32_t vram_size;
  73     uint32_t vram_size_mb; /* property */
  74     uint32_t vbe_size;
  75     uint32_t vbe_size_mask;
  76     uint32_t latch;
  77     bool has_chain4_alias;
  78     MemoryRegion chain4_alias;
  79     uint8_t sr_index;
  80     uint8_t sr[256];
  81     uint8_t sr_vbe[256];
  82     uint8_t gr_index;
  83     uint8_t gr[256];
  84     uint8_t ar_index;
  85     uint8_t ar[21];
  86     int ar_flip_flop;
  87     uint8_t cr_index;
  88     uint8_t cr[256]; /* CRT registers */
  89     uint8_t msr; /* Misc Output Register */
  90     uint8_t fcr; /* Feature Control Register */
  91     uint8_t st00; /* status 0 */
  92     uint8_t st01; /* status 1 */
  93     uint8_t dac_state;
  94     uint8_t dac_sub_index;
  95     uint8_t dac_read_index;
  96     uint8_t dac_write_index;
  97     uint8_t dac_cache[3]; /* used when writing */
  98     int dac_8bit;
  99     uint8_t palette[768];
 100     int32_t bank_offset;
 101     int (*get_bpp)(struct VGACommonState *s);
 102     void (*get_params)(struct VGACommonState *s, VGADisplayParams *params);
 103     void (*get_resolution)(struct VGACommonState *s,
 104                         int *pwidth,
 105                         int *pheight);
 106     PortioList vga_port_list;
 107     PortioList vbe_port_list;
 108     /* bochs vbe state */
 109     uint16_t vbe_index;
 110     uint16_t vbe_regs[VBE_DISPI_INDEX_NB];
 111     uint32_t vbe_start_addr;
 112     uint32_t vbe_line_offset;
 113     uint32_t vbe_bank_mask;
 114     /* display refresh support */
 115     QemuConsole *con;
 116     uint32_t font_offsets[2];
 117     uint8_t *panning_buf;
 118     int graphic_mode;
 119     uint8_t shift_control;
 120     uint8_t double_scan;
 121     VGADisplayParams params;
 122     uint32_t plane_updated;
 123     uint32_t last_line_offset;
 124     uint8_t last_cw, last_ch;
 125     uint32_t last_width, last_height; /* in chars or pixels */
 126     uint32_t last_scr_width, last_scr_height; /* in pixels */
 127     uint32_t last_depth; /* in bits */
 128     bool last_byteswap;
 129     bool force_shadow;
 130     uint8_t cursor_start, cursor_end;
 131     bool cursor_visible_phase;
 132     int64_t cursor_blink_time;
 133     uint32_t cursor_offset;
 134     const GraphicHwOps *hw_ops;
 135     bool full_update_text;
 136     bool full_update_gfx;
 137     bool big_endian_fb;
 138     bool default_endian_fb;
 139     bool global_vmstate;
 140     /* hardware mouse cursor support */
 141     uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
 142     uint32_t hw_cursor_x;
 143     uint32_t hw_cursor_y;
 144     void (*cursor_invalidate)(struct VGACommonState *s);
 145     void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y);
 146     /* tell for each page if it has been updated since the last time */
 147     uint32_t last_palette[256];
 148     uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
 149     /* retrace */
 150     vga_retrace_fn retrace;
 151     vga_update_retrace_info_fn update_retrace_info;
 152     union vga_retrace retrace_info;
 153     uint8_t is_vbe_vmstate;
 154 } VGACommonState;
 155
 156 static inline int c6_to_8(int v)
 157 {
 158     int b;
 159     v &= 0x3f;
 160     b = v & 1;
 161     return (v << 2) | (b << 1) | b;
 162 }
 163
 164 bool vga_common_init(VGACommonState *s, Object *obj, Error **errp);
 165 void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space,
 166               MemoryRegion *address_space_io, bool init_vga_ports);
 167 MemoryRegion *vga_init_io(VGACommonState *s, Object *obj,
 168                           const MemoryRegionPortio **vga_ports,
 169                           const MemoryRegionPortio **vbe_ports);
 170 void vga_common_reset(VGACommonState *s);
 171
 172 void vga_dirty_log_start(VGACommonState *s);
 173 void vga_dirty_log_stop(VGACommonState *s);
 174
 175 extern const VMStateDescription vmstate_vga_common;
 176 uint32_t vga_ioport_read(void *opaque, uint32_t addr);
 177 void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 178 uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr);
 179 void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val);
 180 void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
 181
 182 int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
 183
 184 uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr);
 185 void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val);
 186 void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val);
 187
 188 extern const uint8_t sr_mask[8];
 189 extern const uint8_t gr_mask[16];
 190
 191 #define VGABIOS_FILENAME "vgabios.bin"
 192 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
 193
 194 extern const MemoryRegionOps vga_mem_ops;
 195
 196 /* vga-pci.c */
 197 void pci_std_vga_mmio_region_init(VGACommonState *s,
 198                                   Object *owner,
 199                                   MemoryRegion *parent,
 200                                   MemoryRegion *subs,
 201                                   bool qext, bool edid);
 202
 203 void build_vga_aml(AcpiDevAmlIf *adev, Aml *scope);
 204 #endif