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
c6_to_8(int v)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
205