2 * QEMU internal VGA defines.
4 * Copyright (c) 2003-2004 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
28 #include "exec/ioport.h"
29 #include "exec/memory.h"
31 #include "hw/display/bochs-vbe.h"
32 #include "hw/acpi/acpi_aml_interface.h"
34 #define ST01_V_RETRACE 0x08
35 #define ST01_DISP_ENABLE 0x01
37 #define CH_ATTR_SIZE (160 * 100)
38 #define VGA_MAX_HEIGHT 2048
40 struct vga_precise_retrace
{
41 int64_t ticks_per_char
;
52 struct vga_precise_retrace precise
;
55 struct VGACommonState
;
56 typedef uint8_t (* vga_retrace_fn
)(struct VGACommonState
*s
);
57 typedef void (* vga_update_retrace_info_fn
)(struct VGACommonState
*s
);
59 typedef struct VGADisplayParams
{
62 uint32_t line_compare
;
67 typedef struct VGACommonState
{
68 MemoryRegion
*legacy_address_space
;
72 uint32_t vram_size_mb
; /* property */
74 uint32_t vbe_size_mask
;
76 bool has_chain4_alias
;
77 MemoryRegion chain4_alias
;
87 uint8_t cr
[256]; /* CRT registers */
88 uint8_t msr
; /* Misc Output Register */
89 uint8_t fcr
; /* Feature Control Register */
90 uint8_t st00
; /* status 0 */
91 uint8_t st01
; /* status 1 */
93 uint8_t dac_sub_index
;
94 uint8_t dac_read_index
;
95 uint8_t dac_write_index
;
96 uint8_t dac_cache
[3]; /* used when writing */
100 int (*get_bpp
)(struct VGACommonState
*s
);
101 void (*get_params
)(struct VGACommonState
*s
, VGADisplayParams
*params
);
102 void (*get_resolution
)(struct VGACommonState
*s
,
105 PortioList vga_port_list
;
106 PortioList vbe_port_list
;
107 /* bochs vbe state */
109 uint16_t vbe_regs
[VBE_DISPI_INDEX_NB
];
110 uint32_t vbe_start_addr
;
111 uint32_t vbe_line_offset
;
112 uint32_t vbe_bank_mask
;
113 /* display refresh support */
115 uint32_t font_offsets
[2];
116 uint8_t *panning_buf
;
118 uint8_t shift_control
;
120 VGADisplayParams params
;
121 uint32_t plane_updated
;
122 uint32_t last_line_offset
;
123 uint8_t last_cw
, last_ch
;
124 uint32_t last_width
, last_height
; /* in chars or pixels */
125 uint32_t last_scr_width
, last_scr_height
; /* in pixels */
126 uint32_t last_depth
; /* in bits */
129 uint8_t cursor_start
, cursor_end
;
130 bool cursor_visible_phase
;
131 int64_t cursor_blink_time
;
132 uint32_t cursor_offset
;
133 const GraphicHwOps
*hw_ops
;
134 bool full_update_text
;
135 bool full_update_gfx
;
137 bool default_endian_fb
;
139 /* hardware mouse cursor support */
140 uint32_t invalidated_y_table
[VGA_MAX_HEIGHT
/ 32];
141 uint32_t hw_cursor_x
;
142 uint32_t hw_cursor_y
;
143 void (*cursor_invalidate
)(struct VGACommonState
*s
);
144 void (*cursor_draw_line
)(struct VGACommonState
*s
, uint8_t *d
, int y
);
145 /* tell for each page if it has been updated since the last time */
146 uint32_t last_palette
[256];
147 uint32_t last_ch_attr
[CH_ATTR_SIZE
]; /* XXX: make it dynamic */
149 vga_retrace_fn retrace
;
150 vga_update_retrace_info_fn update_retrace_info
;
151 union vga_retrace retrace_info
;
152 uint8_t is_vbe_vmstate
;
155 static inline int c6_to_8(int v
)
160 return (v
<< 2) | (b
<< 1) | b
;
163 bool vga_common_init(VGACommonState
*s
, Object
*obj
, Error
**errp
);
164 void vga_init(VGACommonState
*s
, Object
*obj
, MemoryRegion
*address_space
,
165 MemoryRegion
*address_space_io
, bool init_vga_ports
);
166 MemoryRegion
*vga_init_io(VGACommonState
*s
, Object
*obj
,
167 const MemoryRegionPortio
**vga_ports
,
168 const MemoryRegionPortio
**vbe_ports
);
169 void vga_common_reset(VGACommonState
*s
);
171 void vga_dirty_log_start(VGACommonState
*s
);
172 void vga_dirty_log_stop(VGACommonState
*s
);
174 extern const VMStateDescription vmstate_vga_common
;
175 uint32_t vga_ioport_read(void *opaque
, uint32_t addr
);
176 void vga_ioport_write(void *opaque
, uint32_t addr
, uint32_t val
);
177 uint32_t vga_mem_readb(VGACommonState
*s
, hwaddr addr
);
178 void vga_mem_writeb(VGACommonState
*s
, hwaddr addr
, uint32_t val
);
179 void vga_invalidate_scanlines(VGACommonState
*s
, int y1
, int y2
);
181 int vga_ioport_invalid(VGACommonState
*s
, uint32_t addr
);
183 uint32_t vbe_ioport_read_data(void *opaque
, uint32_t addr
);
184 void vbe_ioport_write_index(void *opaque
, uint32_t addr
, uint32_t val
);
185 void vbe_ioport_write_data(void *opaque
, uint32_t addr
, uint32_t val
);
187 extern const uint8_t sr_mask
[8];
188 extern const uint8_t gr_mask
[16];
190 #define VGABIOS_FILENAME "vgabios.bin"
191 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
193 extern const MemoryRegionOps vga_mem_ops
;
196 void pci_std_vga_mmio_region_init(VGACommonState
*s
,
198 MemoryRegion
*parent
,
200 bool qext
, bool edid
);
202 void build_vga_aml(AcpiDevAmlIf
*adev
, Aml
*scope
);