vcs.maemo.org Git - qemu/blob - hw/vga_int.h

   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 #define MSR_COLOR_EMULATION 0x01
  25 #define MSR_PAGE_SELECT     0x20
  26
  27 #define ST01_V_RETRACE      0x08
  28 #define ST01_DISP_ENABLE    0x01
  29
  30 /* bochs VBE support */
  31 #define CONFIG_BOCHS_VBE
  32
  33 #define VBE_DISPI_MAX_XRES              1024
  34 #define VBE_DISPI_MAX_YRES              768
  35
  36 #define VBE_DISPI_INDEX_ID              0x0
  37 #define VBE_DISPI_INDEX_XRES            0x1
  38 #define VBE_DISPI_INDEX_YRES            0x2
  39 #define VBE_DISPI_INDEX_BPP             0x3
  40 #define VBE_DISPI_INDEX_ENABLE          0x4
  41 #define VBE_DISPI_INDEX_BANK            0x5
  42 #define VBE_DISPI_INDEX_VIRT_WIDTH      0x6
  43 #define VBE_DISPI_INDEX_VIRT_HEIGHT     0x7
  44 #define VBE_DISPI_INDEX_X_OFFSET        0x8
  45 #define VBE_DISPI_INDEX_Y_OFFSET        0x9
  46 #define VBE_DISPI_INDEX_NB              0xa
  47
  48 #define VBE_DISPI_ID0                   0xB0C0
  49 #define VBE_DISPI_ID1                   0xB0C1
  50 #define VBE_DISPI_ID2                   0xB0C2
  51
  52 #define VBE_DISPI_DISABLED              0x00
  53 #define VBE_DISPI_ENABLED               0x01
  54 #define VBE_DISPI_LFB_ENABLED           0x40
  55 #define VBE_DISPI_NOCLEARMEM            0x80
  56
  57 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS  0xE0000000
  58
  59 #ifdef CONFIG_BOCHS_VBE
  60
  61 #define VGA_STATE_COMMON_BOCHS_VBE              \
  62     uint16_t vbe_index;                         \
  63     uint16_t vbe_regs[VBE_DISPI_INDEX_NB];      \
  64     uint32_t vbe_start_addr;                    \
  65     uint32_t vbe_line_offset;                   \
  66     uint32_t vbe_bank_mask;
  67
  68 #else
  69
  70 #define VGA_STATE_COMMON_BOCHS_VBE
  71
  72 #endif /* !CONFIG_BOCHS_VBE */
  73
  74 #define CH_ATTR_SIZE (160 * 100)
  75
  76 #define VGA_STATE_COMMON                                                \
  77     uint8_t *vram_ptr;                                                  \
  78     unsigned long vram_offset;                                          \
  79     unsigned int vram_size;                                             \
  80     uint32_t latch;                                                     \
  81     uint8_t sr_index;                                                   \
  82     uint8_t sr[256];                                                    \
  83     uint8_t gr_index;                                                   \
  84     uint8_t gr[256];                                                    \
  85     uint8_t ar_index;                                                   \
  86     uint8_t ar[21];                                                     \
  87     int ar_flip_flop;                                                   \
  88     uint8_t cr_index;                                                   \
  89     uint8_t cr[256]; /* CRT registers */                                \
  90     uint8_t msr; /* Misc Output Register */                             \
  91     uint8_t fcr; /* Feature Control Register */                         \
  92     uint8_t st00; /* status 0 */                                        \
  93     uint8_t st01; /* status 1 */                                        \
  94     uint8_t dac_state;                                                  \
  95     uint8_t dac_sub_index;                                              \
  96     uint8_t dac_read_index;                                             \
  97     uint8_t dac_write_index;                                            \
  98     uint8_t dac_cache[3]; /* used when writing */                       \
  99     uint8_t palette[768];                                               \
 100     int32_t bank_offset;                                                \
 101     int (*get_bpp)(struct VGAState *s);                                 \
 102     void (*get_offsets)(struct VGAState *s,                             \
 103                         uint32_t *pline_offset,                         \
 104                         uint32_t *pstart_addr);                         \
 105     VGA_STATE_COMMON_BOCHS_VBE                                          \
 106     /* display refresh support */                                       \
 107     DisplayState *ds;                                                   \
 108     uint32_t font_offsets[2];                                           \
 109     int graphic_mode;                                                   \
 110     uint8_t shift_control;                                              \
 111     uint8_t double_scan;                                                \
 112     uint32_t line_offset;                                               \
 113     uint32_t line_compare;                                              \
 114     uint32_t start_addr;                                                \
 115     uint8_t last_cw, last_ch;                                           \
 116     uint32_t last_width, last_height; /* in chars or pixels */          \
 117     uint32_t last_scr_width, last_scr_height; /* in pixels */           \
 118     uint8_t cursor_start, cursor_end;                                   \
 119     uint32_t cursor_offset;                                             \
 120     unsigned int (*rgb_to_pixel)(unsigned int r,                        \
 121                                  unsigned int g, unsigned b);           \
 122     /* tell for each page if it has been updated since the last time */ \
 123     uint32_t last_palette[256];                                         \
 124     uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
 125
 126
 127 typedef struct VGAState {
 128     VGA_STATE_COMMON
 129 } VGAState;
 130
 131 void vga_common_init(VGAState *s, DisplayState *ds, uint8_t *vga_ram_base,
 132                      unsigned long vga_ram_offset, int vga_ram_size);
 133 uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr);
 134 void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val);
 135
 136 extern const uint8_t sr_mask[8];
 137 extern const uint8_t gr_mask[16];