hw/vga-pci.c

   1 /*
   2  * QEMU PCI 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 "pci.h"
  28 #include "vga_int.h"
  29 #include "pixel_ops.h"
  30 #include "qemu-timer.h"
  31 #include "loader.h"
  32
  33 typedef struct PCIVGAState {
  34     PCIDevice dev;
  35     VGACommonState vga;
  36 } PCIVGAState;
  37
  38 static const VMStateDescription vmstate_vga_pci = {
  39     .name = "vga",
  40     .version_id = 2,
  41     .minimum_version_id = 2,
  42     .minimum_version_id_old = 2,
  43     .fields      = (VMStateField []) {
  44         VMSTATE_PCI_DEVICE(dev, PCIVGAState),
  45         VMSTATE_STRUCT(vga, PCIVGAState, 0, vmstate_vga_common, VGACommonState),
  46         VMSTATE_END_OF_LIST()
  47     }
  48 };
  49
  50 static int pci_vga_initfn(PCIDevice *dev)
  51 {
  52      PCIVGAState *d = DO_UPCAST(PCIVGAState, dev, dev);
  53      VGACommonState *s = &d->vga;
  54
  55      // vga + console init
  56      vga_common_init(s, VGA_RAM_SIZE);
  57      vga_init(s, pci_address_space(dev), pci_address_space_io(dev), true);
  58
  59      s->ds = graphic_console_init(s->update, s->invalidate,
  60                                   s->screen_dump, s->text_update, s);
  61
  62      /* XXX: VGA_RAM_SIZE must be a power of two */
  63      pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->vram);
  64
  65      if (!dev->rom_bar) {
  66          /* compatibility with pc-0.13 and older */
  67          vga_init_vbe(s, pci_address_space(dev));
  68      }
  69
  70      return 0;
  71 }
  72
  73 int pci_vga_init(PCIBus *bus)
  74 {
  75     pci_create_simple(bus, -1, "VGA");
  76     return 0;
  77 }
  78
  79 static PCIDeviceInfo vga_info = {
  80     .qdev.name    = "VGA",
  81     .qdev.size    = sizeof(PCIVGAState),
  82     .qdev.vmsd    = &vmstate_vga_pci,
  83     .no_hotplug   = 1,
  84     .init         = pci_vga_initfn,
  85     .romfile      = "vgabios-stdvga.bin",
  86
  87     /* dummy VGA (same as Bochs ID) */
  88     .vendor_id    = PCI_VENDOR_ID_QEMU,
  89     .device_id    = PCI_DEVICE_ID_QEMU_VGA,
  90     .class_id     = PCI_CLASS_DISPLAY_VGA,
  91 };
  92
  93 static void vga_register(void)
  94 {
  95     pci_qdev_register(&vga_info);
  96 }
  97 device_init(vga_register);