hw/vga-isa.c

   1 /*
   2  * QEMU ISA VGA Emulator.
   3  *
   4  * Copyright (c) 2003 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 #include "hw.h"
  25 #include "console.h"
  26 #include "pc.h"
  27 #include "vga_int.h"
  28 #include "pixel_ops.h"
  29 #include "qemu-timer.h"
  30 #include "loader.h"
  31
  32 int isa_vga_init(void)
  33 {
  34     VGACommonState *s;
  35
  36     s = qemu_mallocz(sizeof(*s));
  37
  38     vga_common_init(s, VGA_RAM_SIZE);
  39     vga_init(s);
  40     vmstate_register(0, &vmstate_vga_common, s);
  41
  42     s->ds = graphic_console_init(s->update, s->invalidate,
  43                                  s->screen_dump, s->text_update, s);
  44
  45 #ifdef CONFIG_BOCHS_VBE
  46     /* XXX: use optimized standard vga accesses */
  47     cpu_register_physical_memory(VBE_DISPI_LFB_PHYSICAL_ADDRESS,
  48                                  VGA_RAM_SIZE, s->vram_offset);
  49 #endif
  50     /* ROM BIOS */
  51     rom_add_vga(VGABIOS_FILENAME);
  52     return 0;
  53 }