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cirrus_vga_isa.c (3635B)

      1 /*
      2  * QEMU Cirrus CLGD 54xx VGA Emulator, ISA bus support
      3  *
      4  * Copyright (c) 2004 Fabrice Bellard
      5  * Copyright (c) 2004 Makoto Suzuki (suzu)
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a copy
      8  * of this software and associated documentation files (the "Software"), to deal
      9  * in the Software without restriction, including without limitation the rights
     10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     11  * copies of the Software, and to permit persons to whom the Software is
     12  * furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice shall be included in
     15  * all copies or substantial portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     23  * THE SOFTWARE.
     24  */
     25 
     26 #include "qemu/osdep.h"
     27 #include "qapi/error.h"
     28 #include "qemu/module.h"
     29 #include "hw/loader.h"
     30 #include "hw/qdev-properties.h"
     31 #include "hw/isa/isa.h"
     32 #include "cirrus_vga_internal.h"
     33 #include "qom/object.h"
     34 #include "ui/console.h"
     35 
     36 #define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga"
     37 OBJECT_DECLARE_SIMPLE_TYPE(ISACirrusVGAState, ISA_CIRRUS_VGA)
     38 
     39 struct ISACirrusVGAState {
     40     ISADevice parent_obj;
     41 
     42     CirrusVGAState cirrus_vga;
     43 };
     44 
     45 static void isa_cirrus_vga_realizefn(DeviceState *dev, Error **errp)
     46 {
     47     ISADevice *isadev = ISA_DEVICE(dev);
     48     ISACirrusVGAState *d = ISA_CIRRUS_VGA(dev);
     49     VGACommonState *s = &d->cirrus_vga.vga;
     50 
     51     /* follow real hardware, cirrus card emulated has 4 MB video memory.
     52        Also accept 8 MB/16 MB for backward compatibility. */
     53     if (s->vram_size_mb != 4 && s->vram_size_mb != 8 &&
     54         s->vram_size_mb != 16) {
     55         error_setg(errp, "Invalid cirrus_vga ram size '%u'",
     56                    s->vram_size_mb);
     57         return;
     58     }
     59     s->global_vmstate = true;
     60     if (!vga_common_init(s, OBJECT(dev), errp)) {
     61         return;
     62     }
     63     cirrus_init_common(&d->cirrus_vga, OBJECT(dev), CIRRUS_ID_CLGD5430, 0,
     64                        isa_address_space(isadev),
     65                        isa_address_space_io(isadev));
     66     s->con = graphic_console_init(dev, 0, s->hw_ops, s);
     67     rom_add_vga(VGABIOS_CIRRUS_FILENAME);
     68     /* XXX ISA-LFB support */
     69     /* FIXME not qdev yet */
     70 }
     71 
     72 static Property isa_cirrus_vga_properties[] = {
     73     DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState,
     74                        cirrus_vga.vga.vram_size_mb, 4),
     75     DEFINE_PROP_BOOL("blitter", struct ISACirrusVGAState,
     76                      cirrus_vga.enable_blitter, true),
     77     DEFINE_PROP_END_OF_LIST(),
     78 };
     79 
     80 static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
     81 {
     82     DeviceClass *dc = DEVICE_CLASS(klass);
     83 
     84     dc->vmsd  = &vmstate_cirrus_vga;
     85     dc->realize = isa_cirrus_vga_realizefn;
     86     device_class_set_props(dc, isa_cirrus_vga_properties);
     87     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
     88 }
     89 
     90 static const TypeInfo isa_cirrus_vga_info = {
     91     .name          = TYPE_ISA_CIRRUS_VGA,
     92     .parent        = TYPE_ISA_DEVICE,
     93     .instance_size = sizeof(ISACirrusVGAState),
     94     .class_init = isa_cirrus_vga_class_init,
     95 };
     96 
     97 static void cirrus_vga_isa_register_types(void)
     98 {
     99     type_register_static(&isa_cirrus_vga_info);
    100 }
    101 
    102 type_init(cirrus_vga_isa_register_types)