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 #include "exec-memory.h"
  32
  33 typedef struct ISAVGAState {
  34     ISADevice dev;
  35     struct VGACommonState state;
  36 } ISAVGAState;
  37
  38 static void vga_reset_isa(DeviceState *dev)
  39 {
  40     ISAVGAState *d = container_of(dev, ISAVGAState, dev.qdev);
  41     VGACommonState *s = &d->state;
  42
  43     vga_common_reset(s);
  44 }
  45
  46 static int vga_initfn(ISADevice *dev)
  47 {
  48     ISAVGAState *d = DO_UPCAST(ISAVGAState, dev, dev);
  49     VGACommonState *s = &d->state;
  50     MemoryRegion *vga_io_memory;
  51
  52     vga_common_init(s, VGA_RAM_SIZE);
  53     vga_io_memory = vga_init_io(s);
  54     memory_region_add_subregion_overlap(get_system_memory(),
  55                                         isa_mem_base + 0x000a0000,
  56                                         vga_io_memory, 1);
  57     memory_region_set_coalescing(vga_io_memory);
  58     isa_init_ioport(dev, 0x3c0);
  59     isa_init_ioport(dev, 0x3b4);
  60     isa_init_ioport(dev, 0x3ba);
  61     isa_init_ioport(dev, 0x3da);
  62     isa_init_ioport(dev, 0x3c0);
  63 #ifdef CONFIG_BOCHS_VBE
  64     isa_init_ioport(dev, 0x1ce);
  65     isa_init_ioport(dev, 0x1cf);
  66     isa_init_ioport(dev, 0x1d0);
  67 #endif /* CONFIG_BOCHS_VBE */
  68     s->ds = graphic_console_init(s->update, s->invalidate,
  69                                  s->screen_dump, s->text_update, s);
  70
  71     vga_init_vbe(s);
  72     /* ROM BIOS */
  73     rom_add_vga(VGABIOS_FILENAME);
  74     return 0;
  75 }
  76
  77 static ISADeviceInfo vga_info = {
  78     .qdev.name     = "isa-vga",
  79     .qdev.size     = sizeof(ISAVGAState),
  80     .qdev.vmsd     = &vmstate_vga_common,
  81     .qdev.reset     = vga_reset_isa,
  82     .init          = vga_initfn,
  83 };
  84
  85 static void vga_register(void)
  86 {
  87     isa_qdev_register(&vga_info);
  88 }
  89 device_init(vga_register)