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 201