| 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 "system/ioport.h" |
| 30 | #include "system/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 pixels (graphics renderer) */ |
| 126 | uint32_t last_text_width, last_text_height; /* in chars (text renderer) */ |
| 127 | uint32_t last_scr_width, last_scr_height; /* in pixels */ |
| 128 | uint32_t last_depth; /* in bits */ |
| 129 | bool last_byteswap; |
| 130 | bool force_shadow; |
| 131 | uint8_t cursor_start, cursor_end; |
| 132 | bool cursor_visible_phase; |
| 133 | int64_t cursor_blink_time; |
| 134 | bool blink_visible_phase; |
| 135 | int64_t blink_time; |
| 136 | uint32_t cursor_offset; |
| 137 | const GraphicHwOps *hw_ops; |
| 138 | bool full_update_text; |
| 139 | bool full_update_gfx; |
| 140 | bool big_endian_fb; |
| 141 | bool default_endian_fb; |
| 142 | bool global_vmstate; |
| 143 | /* hardware mouse cursor support */ |
| 144 | uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; |
| 145 | uint32_t hw_cursor_x; |
| 146 | uint32_t hw_cursor_y; |
| 147 | void (*cursor_invalidate)(struct VGACommonState *s); |
| 148 | void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y); |
| 149 | /* tell for each page if it has been updated since the last time */ |
| 150 | uint32_t last_palette[256]; |
| 151 | uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */ |
| 152 | /* retrace */ |
| 153 | vga_retrace_fn retrace; |
| 154 | vga_update_retrace_info_fn update_retrace_info; |
| 155 | union vga_retrace retrace_info; |
| 156 | uint8_t is_vbe_vmstate; |
| 157 | } VGACommonState; |
| 158 | |
| 159 | static inline int c6_to_8(int v) |
| 160 | { |
| 161 | int b; |
| 162 | v &= 0x3f; |
| 163 | b = v & 1; |
| 164 | return (v << 2) | (b << 1) | b; |
| 165 | } |
| 166 | |
| 167 | bool vga_common_init(VGACommonState *s, Object *obj, Error **errp); |
| 168 | void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space, |
| 169 | MemoryRegion *address_space_io, bool init_vga_ports); |
| 170 | MemoryRegion *vga_init_io(VGACommonState *s, Object *obj, |
| 171 | const MemoryRegionPortio **vga_ports, |
| 172 | const MemoryRegionPortio **vbe_ports); |
| 173 | void vga_common_reset(VGACommonState *s); |
| 174 | |
| 175 | void vga_dirty_log_start(VGACommonState *s); |
| 176 | void vga_dirty_log_stop(VGACommonState *s); |
| 177 | |
| 178 | extern const VMStateDescription vmstate_vga_common; |
| 179 | uint32_t vga_ioport_read(void *opaque, uint32_t addr); |
| 180 | void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val); |
| 181 | uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr); |
| 182 | void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val); |
| 183 | void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2); |
| 184 | |
| 185 | int vga_ioport_invalid(VGACommonState *s, uint32_t addr); |
| 186 | |
| 187 | uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr); |
| 188 | void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val); |
| 189 | void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val); |
| 190 | |
| 191 | extern const uint8_t sr_mask[8]; |
| 192 | extern const uint8_t gr_mask[16]; |
| 193 | |
| 194 | #define VGABIOS_FILENAME "vgabios.bin" |
| 195 | #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin" |
| 196 | |
| 197 | extern const MemoryRegionOps vga_mem_ops; |
| 198 | |
| 199 | /* vga-pci.c */ |
| 200 | void pci_std_vga_mmio_region_init(VGACommonState *s, |
| 201 | Object *owner, |
| 202 | MemoryRegion *parent, |
| 203 | MemoryRegion *subs, |
| 204 | bool qext, bool edid); |
| 205 | |
| 206 | void build_vga_aml(AcpiDevAmlIf *adev, Aml *scope); |
| 207 | #endif |