2 * QEMU internal VGA defines.
4 * Copyright (c) 2003-2004 Fabrice Bellard
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7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
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28 #define ST01_V_RETRACE 0x08
29 #define ST01_DISP_ENABLE 0x01
31 /* bochs VBE support */
32 #define CONFIG_BOCHS_VBE
35 #define VBE_DISPI_MAX_XRES 2600
36 #define VBE_DISPI_MAX_YRES 2600
38 #define VBE_DISPI_MAX_XRES 1600
39 #define VBE_DISPI_MAX_YRES 1200
41 #define VBE_DISPI_MAX_BPP 32
43 #define VBE_DISPI_INDEX_ID 0x0
44 #define VBE_DISPI_INDEX_XRES 0x1
45 #define VBE_DISPI_INDEX_YRES 0x2
46 #define VBE_DISPI_INDEX_BPP 0x3
47 #define VBE_DISPI_INDEX_ENABLE 0x4
48 #define VBE_DISPI_INDEX_BANK 0x5
49 #define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
50 #define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
51 #define VBE_DISPI_INDEX_X_OFFSET 0x8
52 #define VBE_DISPI_INDEX_Y_OFFSET 0x9
53 #define VBE_DISPI_INDEX_NB 0xa /* size of vbe_regs[] */
54 #define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa /* read-only, not in vbe_regs */
56 #define VBE_DISPI_ID0 0xB0C0
57 #define VBE_DISPI_ID1 0xB0C1
58 #define VBE_DISPI_ID2 0xB0C2
59 #define VBE_DISPI_ID3 0xB0C3
60 #define VBE_DISPI_ID4 0xB0C4
61 #define VBE_DISPI_ID5 0xB0C5
63 #define VBE_DISPI_DISABLED 0x00
64 #define VBE_DISPI_ENABLED 0x01
65 #define VBE_DISPI_GETCAPS 0x02
66 #define VBE_DISPI_8BIT_DAC 0x20
67 #define VBE_DISPI_LFB_ENABLED 0x40
68 #define VBE_DISPI_NOCLEARMEM 0x80
70 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
72 #ifdef CONFIG_BOCHS_VBE
74 #define VGA_STATE_COMMON_BOCHS_VBE \
76 uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; \
77 uint32_t vbe_start_addr; \
78 uint32_t vbe_line_offset; \
79 uint32_t vbe_bank_mask; \
83 #define VGA_STATE_COMMON_BOCHS_VBE
85 #endif /* !CONFIG_BOCHS_VBE */
87 #define CH_ATTR_SIZE (160 * 100)
88 #define VGA_MAX_HEIGHT 2048
90 struct vga_precise_retrace {
91 int64_t ticks_per_char;
102 struct vga_precise_retrace precise;
105 struct VGACommonState;
106 typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s);
107 typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s);
109 typedef struct VGACommonState {
110 MemoryRegion *legacy_address_space;
113 MemoryRegion vram_vbe;
115 uint32_t vram_size_mb; /* property */
117 MemoryRegion *chain4_alias;
126 uint8_t cr[256]; /* CRT registers */
127 uint8_t msr; /* Misc Output Register */
128 uint8_t fcr; /* Feature Control Register */
129 uint8_t st00; /* status 0 */
130 uint8_t st01; /* status 1 */
132 uint8_t dac_sub_index;
133 uint8_t dac_read_index;
134 uint8_t dac_write_index;
135 uint8_t dac_cache[3]; /* used when writing */
137 uint8_t palette[768];
139 int (*get_bpp)(struct VGACommonState *s);
140 void (*get_offsets)(struct VGACommonState *s,
141 uint32_t *pline_offset,
142 uint32_t *pstart_addr,
143 uint32_t *pline_compare);
144 void (*get_resolution)(struct VGACommonState *s,
147 VGA_STATE_COMMON_BOCHS_VBE
148 /* display refresh support */
150 uint32_t font_offsets[2];
152 uint8_t shift_control;
154 uint32_t line_offset;
155 uint32_t line_compare;
157 uint32_t plane_updated;
158 uint32_t last_line_offset;
159 uint8_t last_cw, last_ch;
160 uint32_t last_width, last_height; /* in chars or pixels */
161 uint32_t last_scr_width, last_scr_height; /* in pixels */
162 uint32_t last_depth; /* in bits */
163 uint8_t cursor_start, cursor_end;
164 bool cursor_visible_phase;
165 int64_t cursor_blink_time;
166 uint32_t cursor_offset;
167 unsigned int (*rgb_to_pixel)(unsigned int r,
168 unsigned int g, unsigned b);
169 vga_hw_update_ptr update;
170 vga_hw_invalidate_ptr invalidate;
171 vga_hw_screen_dump_ptr screen_dump;
172 vga_hw_text_update_ptr text_update;
173 /* hardware mouse cursor support */
174 uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
175 void (*cursor_invalidate)(struct VGACommonState *s);
176 void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y);
177 /* tell for each page if it has been updated since the last time */
178 uint32_t last_palette[256];
179 uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
181 vga_retrace_fn retrace;
182 vga_update_retrace_info_fn update_retrace_info;
183 union vga_retrace retrace_info;
184 uint8_t is_vbe_vmstate;
187 static inline int c6_to_8(int v)
192 return (v << 2) | (b << 1) | b;
195 void vga_common_init(VGACommonState *s);
196 void vga_init(VGACommonState *s, MemoryRegion *address_space,
197 MemoryRegion *address_space_io, bool init_vga_ports);
198 MemoryRegion *vga_init_io(VGACommonState *s,
199 const MemoryRegionPortio **vga_ports,
200 const MemoryRegionPortio **vbe_ports);
201 void vga_common_reset(VGACommonState *s);
203 void vga_dirty_log_start(VGACommonState *s);
204 void vga_dirty_log_stop(VGACommonState *s);
206 extern const VMStateDescription vmstate_vga_common;
207 uint32_t vga_ioport_read(void *opaque, uint32_t addr);
208 void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
209 uint32_t vga_mem_readb(VGACommonState *s, target_phys_addr_t addr);
210 void vga_mem_writeb(VGACommonState *s, target_phys_addr_t addr, uint32_t val);
211 void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
212 int ppm_save(const char *filename, struct DisplaySurface *ds);
214 int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
215 void vga_init_vbe(VGACommonState *s, MemoryRegion *address_space);
217 extern const uint8_t sr_mask[8];
218 extern const uint8_t gr_mask[16];
220 #define VGABIOS_FILENAME "vgabios.bin"
221 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
223 extern const MemoryRegionOps vga_mem_ops;