Annotation of qemu/hw/vga_int.h, revision 1.1.1.8

1.1       root        1: /*
                      2:  * QEMU internal VGA defines.
1.1.1.4   root        3:  *
1.1       root        4:  * Copyright (c) 2003-2004 Fabrice Bellard
1.1.1.4   root        5:  *
1.1       root        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:  */
1.1.1.8 ! root       24: 
        !            25: #include <hw/hw.h>
        !            26: 
1.1       root       27: #define MSR_COLOR_EMULATION 0x01
                     28: #define MSR_PAGE_SELECT     0x20
                     29: 
                     30: #define ST01_V_RETRACE      0x08
                     31: #define ST01_DISP_ENABLE    0x01
                     32: 
                     33: /* bochs VBE support */
                     34: #define CONFIG_BOCHS_VBE
                     35: 
1.1.1.2   root       36: #define VBE_DISPI_MAX_XRES              1600
                     37: #define VBE_DISPI_MAX_YRES              1200
                     38: #define VBE_DISPI_MAX_BPP               32
1.1       root       39: 
                     40: #define VBE_DISPI_INDEX_ID              0x0
                     41: #define VBE_DISPI_INDEX_XRES            0x1
                     42: #define VBE_DISPI_INDEX_YRES            0x2
                     43: #define VBE_DISPI_INDEX_BPP             0x3
                     44: #define VBE_DISPI_INDEX_ENABLE          0x4
                     45: #define VBE_DISPI_INDEX_BANK            0x5
                     46: #define VBE_DISPI_INDEX_VIRT_WIDTH      0x6
                     47: #define VBE_DISPI_INDEX_VIRT_HEIGHT     0x7
                     48: #define VBE_DISPI_INDEX_X_OFFSET        0x8
                     49: #define VBE_DISPI_INDEX_Y_OFFSET        0x9
                     50: #define VBE_DISPI_INDEX_NB              0xa
1.1.1.4   root       51: 
1.1       root       52: #define VBE_DISPI_ID0                   0xB0C0
                     53: #define VBE_DISPI_ID1                   0xB0C1
                     54: #define VBE_DISPI_ID2                   0xB0C2
1.1.1.3   root       55: #define VBE_DISPI_ID3                   0xB0C3
                     56: #define VBE_DISPI_ID4                   0xB0C4
1.1.1.4   root       57: 
1.1       root       58: #define VBE_DISPI_DISABLED              0x00
                     59: #define VBE_DISPI_ENABLED               0x01
1.1.1.2   root       60: #define VBE_DISPI_GETCAPS               0x02
                     61: #define VBE_DISPI_8BIT_DAC              0x20
1.1       root       62: #define VBE_DISPI_LFB_ENABLED           0x40
                     63: #define VBE_DISPI_NOCLEARMEM            0x80
1.1.1.4   root       64: 
1.1       root       65: #define VBE_DISPI_LFB_PHYSICAL_ADDRESS  0xE0000000
                     66: 
                     67: #ifdef CONFIG_BOCHS_VBE
                     68: 
                     69: #define VGA_STATE_COMMON_BOCHS_VBE              \
                     70:     uint16_t vbe_index;                         \
                     71:     uint16_t vbe_regs[VBE_DISPI_INDEX_NB];      \
                     72:     uint32_t vbe_start_addr;                    \
                     73:     uint32_t vbe_line_offset;                   \
1.1.1.8 ! root       74:     uint32_t vbe_bank_mask;                    \
        !            75:     int vbe_mapped;
1.1       root       76: #else
                     77: 
                     78: #define VGA_STATE_COMMON_BOCHS_VBE
                     79: 
                     80: #endif /* !CONFIG_BOCHS_VBE */
                     81: 
                     82: #define CH_ATTR_SIZE (160 * 100)
1.1.1.2   root       83: #define VGA_MAX_HEIGHT 2048
1.1       root       84: 
1.1.1.5   root       85: struct vga_precise_retrace {
                     86:     int64_t ticks_per_char;
                     87:     int64_t total_chars;
                     88:     int htotal;
                     89:     int hstart;
                     90:     int hend;
                     91:     int vstart;
                     92:     int vend;
                     93:     int freq;
                     94: };
                     95: 
                     96: union vga_retrace {
                     97:     struct vga_precise_retrace precise;
                     98: };
                     99: 
1.1.1.6   root      100: struct VGACommonState;
                    101: typedef uint8_t (* vga_retrace_fn)(struct VGACommonState *s);
                    102: typedef void (* vga_update_retrace_info_fn)(struct VGACommonState *s);
                    103: 
                    104: typedef struct VGACommonState {
                    105:     uint8_t *vram_ptr;
                    106:     ram_addr_t vram_offset;
                    107:     unsigned int vram_size;
                    108:     uint32_t lfb_addr;
                    109:     uint32_t lfb_end;
                    110:     uint32_t map_addr;
                    111:     uint32_t map_end;
                    112:     uint32_t lfb_vram_mapped; /* whether 0xa0000 is mapped as ram */
1.1.1.8 ! root      113:     uint32_t bios_offset;
        !           114:     uint32_t bios_size;
1.1.1.6   root      115:     uint32_t latch;
                    116:     uint8_t sr_index;
                    117:     uint8_t sr[256];
                    118:     uint8_t gr_index;
                    119:     uint8_t gr[256];
                    120:     uint8_t ar_index;
                    121:     uint8_t ar[21];
                    122:     int ar_flip_flop;
                    123:     uint8_t cr_index;
                    124:     uint8_t cr[256]; /* CRT registers */
                    125:     uint8_t msr; /* Misc Output Register */
                    126:     uint8_t fcr; /* Feature Control Register */
                    127:     uint8_t st00; /* status 0 */
                    128:     uint8_t st01; /* status 1 */
                    129:     uint8_t dac_state;
                    130:     uint8_t dac_sub_index;
                    131:     uint8_t dac_read_index;
                    132:     uint8_t dac_write_index;
                    133:     uint8_t dac_cache[3]; /* used when writing */
                    134:     int dac_8bit;
                    135:     uint8_t palette[768];
                    136:     int32_t bank_offset;
                    137:     int vga_io_memory;
                    138:     int (*get_bpp)(struct VGACommonState *s);
                    139:     void (*get_offsets)(struct VGACommonState *s,
                    140:                         uint32_t *pline_offset,
                    141:                         uint32_t *pstart_addr,
                    142:                         uint32_t *pline_compare);
                    143:     void (*get_resolution)(struct VGACommonState *s,
                    144:                         int *pwidth,
                    145:                         int *pheight);
                    146:     VGA_STATE_COMMON_BOCHS_VBE
                    147:     /* display refresh support */
                    148:     DisplayState *ds;
                    149:     uint32_t font_offsets[2];
                    150:     int graphic_mode;
                    151:     uint8_t shift_control;
                    152:     uint8_t double_scan;
                    153:     uint32_t line_offset;
                    154:     uint32_t line_compare;
                    155:     uint32_t start_addr;
                    156:     uint32_t plane_updated;
                    157:     uint32_t last_line_offset;
                    158:     uint8_t last_cw, last_ch;
                    159:     uint32_t last_width, last_height; /* in chars or pixels */
                    160:     uint32_t last_scr_width, last_scr_height; /* in pixels */
                    161:     uint32_t last_depth; /* in bits */
                    162:     uint8_t cursor_start, cursor_end;
                    163:     uint32_t cursor_offset;
                    164:     unsigned int (*rgb_to_pixel)(unsigned int r,
                    165:                                  unsigned int g, unsigned b);
                    166:     vga_hw_update_ptr update;
                    167:     vga_hw_invalidate_ptr invalidate;
                    168:     vga_hw_screen_dump_ptr screen_dump;
                    169:     vga_hw_text_update_ptr text_update;
                    170:     /* hardware mouse cursor support */
                    171:     uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
                    172:     void (*cursor_invalidate)(struct VGACommonState *s);
                    173:     void (*cursor_draw_line)(struct VGACommonState *s, uint8_t *d, int y);
                    174:     /* tell for each page if it has been updated since the last time */
                    175:     uint32_t last_palette[256];
                    176:     uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
                    177:     /* retrace */
                    178:     vga_retrace_fn retrace;
                    179:     vga_update_retrace_info_fn update_retrace_info;
1.1.1.5   root      180:     union vga_retrace retrace_info;
1.1.1.8 ! root      181:     uint8_t is_vbe_vmstate;
1.1.1.6   root      182: } VGACommonState;
1.1       root      183: 
                    184: static inline int c6_to_8(int v)
                    185: {
                    186:     int b;
                    187:     v &= 0x3f;
                    188:     b = v & 1;
                    189:     return (v << 2) | (b << 1) | b;
                    190: }
                    191: 
1.1.1.8 ! root      192: void vga_common_init(VGACommonState *s, int vga_ram_size);
        !           193: void vga_init(VGACommonState *s);
        !           194: void vga_common_reset(VGACommonState *s);
        !           195: 
        !           196: void vga_dirty_log_start(VGACommonState *s);
        !           197: void vga_dirty_log_stop(VGACommonState *s);
        !           198: void vga_dirty_log_restart(VGACommonState *s);
        !           199: 
        !           200: extern const VMStateDescription vmstate_vga_common;
        !           201: uint32_t vga_ioport_read(void *opaque, uint32_t addr);
        !           202: void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
1.1       root      203: uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr);
                    204: void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val);
1.1.1.8 ! root      205: void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2);
1.1.1.5   root      206: int ppm_save(const char *filename, struct DisplaySurface *ds);
1.1       root      207: 
1.1.1.4   root      208: void vga_draw_cursor_line_8(uint8_t *d1, const uint8_t *src1,
                    209:                             int poffset, int w,
1.1       root      210:                             unsigned int color0, unsigned int color1,
                    211:                             unsigned int color_xor);
1.1.1.4   root      212: void vga_draw_cursor_line_16(uint8_t *d1, const uint8_t *src1,
                    213:                              int poffset, int w,
1.1       root      214:                              unsigned int color0, unsigned int color1,
                    215:                              unsigned int color_xor);
1.1.1.4   root      216: void vga_draw_cursor_line_32(uint8_t *d1, const uint8_t *src1,
                    217:                              int poffset, int w,
1.1       root      218:                              unsigned int color0, unsigned int color1,
                    219:                              unsigned int color_xor);
                    220: 
1.1.1.8 ! root      221: int vga_ioport_invalid(VGACommonState *s, uint32_t addr);
        !           222: void vga_init_vbe(VGACommonState *s);
        !           223: 
1.1       root      224: extern const uint8_t sr_mask[8];
                    225: extern const uint8_t gr_mask[16];
1.1.1.6   root      226: 
                    227: #define VGA_RAM_SIZE (8192 * 1024)
1.1.1.8 ! root      228: #define VGABIOS_FILENAME "vgabios.bin"
        !           229: #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
1.1.1.6   root      230: 
1.1.1.8 ! root      231: extern CPUReadMemoryFunc * const vga_mem_read[3];
        !           232: extern CPUWriteMemoryFunc * const vga_mem_write[3];

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