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 205