diff options
Diffstat (limited to 'hw/vga_int.h')
| -rw-r--r-- | hw/vga_int.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/hw/vga_int.h b/hw/vga_int.h new file mode 100644 index 0000000..b33ab57 --- /dev/null +++ b/hw/vga_int.h @@ -0,0 +1,173 @@ +/* + * QEMU internal VGA defines. + * + * Copyright (c) 2003-2004 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#define MSR_COLOR_EMULATION 0x01 +#define MSR_PAGE_SELECT 0x20 + +#define ST01_V_RETRACE 0x08 +#define ST01_DISP_ENABLE 0x01 + +/* bochs VBE support */ +#define CONFIG_BOCHS_VBE + +#define VBE_DISPI_MAX_XRES 1600 +#define VBE_DISPI_MAX_YRES 1200 +#define VBE_DISPI_MAX_BPP 32 + +#define VBE_DISPI_INDEX_ID 0x0 +#define VBE_DISPI_INDEX_XRES 0x1 +#define VBE_DISPI_INDEX_YRES 0x2 +#define VBE_DISPI_INDEX_BPP 0x3 +#define VBE_DISPI_INDEX_ENABLE 0x4 +#define VBE_DISPI_INDEX_BANK 0x5 +#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6 +#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7 +#define VBE_DISPI_INDEX_X_OFFSET 0x8 +#define VBE_DISPI_INDEX_Y_OFFSET 0x9 +#define VBE_DISPI_INDEX_NB 0xa + +#define VBE_DISPI_ID0 0xB0C0 +#define VBE_DISPI_ID1 0xB0C1 +#define VBE_DISPI_ID2 0xB0C2 + +#define VBE_DISPI_DISABLED 0x00 +#define VBE_DISPI_ENABLED 0x01 +#define VBE_DISPI_GETCAPS 0x02 +#define VBE_DISPI_8BIT_DAC 0x20 +#define VBE_DISPI_LFB_ENABLED 0x40 +#define VBE_DISPI_NOCLEARMEM 0x80 + +#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000 + +#ifdef CONFIG_BOCHS_VBE + +#define VGA_STATE_COMMON_BOCHS_VBE \ + uint16_t vbe_index; \ + uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; \ + uint32_t vbe_start_addr; \ + uint32_t vbe_line_offset; \ + uint32_t vbe_bank_mask; + +#else + +#define VGA_STATE_COMMON_BOCHS_VBE + +#endif /* !CONFIG_BOCHS_VBE */ + +#define CH_ATTR_SIZE (160 * 100) +#define VGA_MAX_HEIGHT 2048 + +#define VGA_STATE_COMMON \ + uint8_t *vram_ptr; \ + unsigned long vram_offset; \ + unsigned int vram_size; \ + unsigned long bios_offset; \ + unsigned int bios_size; \ + uint32_t latch; \ + uint8_t sr_index; \ + uint8_t sr[256]; \ + uint8_t gr_index; \ + uint8_t gr[256]; \ + uint8_t ar_index; \ + uint8_t ar[21]; \ + int ar_flip_flop; \ + uint8_t cr_index; \ + uint8_t cr[256]; /* CRT registers */ \ + uint8_t msr; /* Misc Output Register */ \ + uint8_t fcr; /* Feature Control Register */ \ + uint8_t st00; /* status 0 */ \ + uint8_t st01; /* status 1 */ \ + uint8_t dac_state; \ + uint8_t dac_sub_index; \ + uint8_t dac_read_index; \ + uint8_t dac_write_index; \ + uint8_t dac_cache[3]; /* used when writing */ \ + uint8_t palette[768]; \ + int32_t bank_offset; \ + int (*get_bpp)(struct VGAState *s); \ + void (*get_offsets)(struct VGAState *s, \ + uint32_t *pline_offset, \ + uint32_t *pstart_addr); \ + void (*get_resolution)(struct VGAState *s, \ + int *pwidth, \ + int *pheight); \ + VGA_STATE_COMMON_BOCHS_VBE \ + /* display refresh support */ \ + DisplayState *ds; \ + uint32_t font_offsets[2]; \ + int graphic_mode; \ + uint8_t shift_control; \ + uint8_t double_scan; \ + uint32_t line_offset; \ + uint32_t line_compare; \ + uint32_t start_addr; \ + uint32_t plane_updated; \ + uint8_t last_cw, last_ch; \ + uint32_t last_width, last_height; /* in chars or pixels */ \ + uint32_t last_scr_width, last_scr_height; /* in pixels */ \ + uint8_t cursor_start, cursor_end; \ + uint32_t cursor_offset; \ + unsigned int (*rgb_to_pixel)(unsigned int r, \ + unsigned int g, unsigned b); \ + /* hardware mouse cursor support */ \ + uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; \ + void (*cursor_invalidate)(struct VGAState *s); \ + void (*cursor_draw_line)(struct VGAState *s, uint8_t *d, int y); \ + /* tell for each page if it has been updated since the last time */ \ + uint32_t last_palette[256]; \ + uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */ + + +typedef struct VGAState { + VGA_STATE_COMMON +} VGAState; + +static inline int c6_to_8(int v) +{ + int b; + v &= 0x3f; + b = v & 1; + return (v << 2) | (b << 1) | b; +} + +void vga_common_init(VGAState *s, DisplayState *ds, uint8_t *vga_ram_base, + unsigned long vga_ram_offset, int vga_ram_size); +uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr); +void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val); +void vga_invalidate_scanlines(VGAState *s, int y1, int y2); + +void vga_draw_cursor_line_8(uint8_t *d1, const uint8_t *src1, + int poffset, int w, + unsigned int color0, unsigned int color1, + unsigned int color_xor); +void vga_draw_cursor_line_16(uint8_t *d1, const uint8_t *src1, + int poffset, int w, + unsigned int color0, unsigned int color1, + unsigned int color_xor); +void vga_draw_cursor_line_32(uint8_t *d1, const uint8_t *src1, + int poffset, int w, + unsigned int color0, unsigned int color1, + unsigned int color_xor); + +extern const uint8_t sr_mask[8]; +extern const uint8_t gr_mask[16]; |