qemu/hw/display/vga-pci.c
Juan Quintela d49805aeea savevm: Remove all the unneeded version_minimum_id_old (x86)
After previous Peter patch, they are redundant.  This way we don't
assign them except when needed.  Once there, there were lots of case
where the ".fields" indentation was wrong:

     .fields = (VMStateField []) {
and
     .fields =      (VMStateField []) {

Change all the combinations to:

     .fields = (VMStateField[]){

The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-16 04:55:26 +02:00

277 lines
8.6 KiB
C

/*
* QEMU PCI VGA Emulator.
*
* see docs/specs/standard-vga.txt for virtual hardware specs.
*
* Copyright (c) 2003 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw/hw.h"
#include "ui/console.h"
#include "hw/pci/pci.h"
#include "vga_int.h"
#include "ui/pixel_ops.h"
#include "qemu/timer.h"
#include "hw/loader.h"
#define PCI_VGA_IOPORT_OFFSET 0x400
#define PCI_VGA_IOPORT_SIZE (0x3e0 - 0x3c0)
#define PCI_VGA_BOCHS_OFFSET 0x500
#define PCI_VGA_BOCHS_SIZE (0x0b * 2)
#define PCI_VGA_MMIO_SIZE 0x1000
enum vga_pci_flags {
PCI_VGA_FLAG_ENABLE_MMIO = 1,
};
typedef struct PCIVGAState {
PCIDevice dev;
VGACommonState vga;
uint32_t flags;
MemoryRegion mmio;
MemoryRegion ioport;
MemoryRegion bochs;
} PCIVGAState;
static const VMStateDescription vmstate_vga_pci = {
.name = "vga",
.version_id = 2,
.minimum_version_id = 2,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(dev, PCIVGAState),
VMSTATE_STRUCT(vga, PCIVGAState, 0, vmstate_vga_common, VGACommonState),
VMSTATE_END_OF_LIST()
}
};
static uint64_t pci_vga_ioport_read(void *ptr, hwaddr addr,
unsigned size)
{
PCIVGAState *d = ptr;
uint64_t ret = 0;
switch (size) {
case 1:
ret = vga_ioport_read(&d->vga, addr);
break;
case 2:
ret = vga_ioport_read(&d->vga, addr);
ret |= vga_ioport_read(&d->vga, addr+1) << 8;
break;
}
return ret;
}
static void pci_vga_ioport_write(void *ptr, hwaddr addr,
uint64_t val, unsigned size)
{
PCIVGAState *d = ptr;
switch (size) {
case 1:
vga_ioport_write(&d->vga, addr + 0x3c0, val);
break;
case 2:
/*
* Update bytes in little endian order. Allows to update
* indexed registers with a single word write because the
* index byte is updated first.
*/
vga_ioport_write(&d->vga, addr + 0x3c0, val & 0xff);
vga_ioport_write(&d->vga, addr + 0x3c1, (val >> 8) & 0xff);
break;
}
}
static const MemoryRegionOps pci_vga_ioport_ops = {
.read = pci_vga_ioport_read,
.write = pci_vga_ioport_write,
.valid.min_access_size = 1,
.valid.max_access_size = 4,
.impl.min_access_size = 1,
.impl.max_access_size = 2,
.endianness = DEVICE_LITTLE_ENDIAN,
};
static uint64_t pci_vga_bochs_read(void *ptr, hwaddr addr,
unsigned size)
{
PCIVGAState *d = ptr;
int index = addr >> 1;
vbe_ioport_write_index(&d->vga, 0, index);
return vbe_ioport_read_data(&d->vga, 0);
}
static void pci_vga_bochs_write(void *ptr, hwaddr addr,
uint64_t val, unsigned size)
{
PCIVGAState *d = ptr;
int index = addr >> 1;
vbe_ioport_write_index(&d->vga, 0, index);
vbe_ioport_write_data(&d->vga, 0, val);
}
static const MemoryRegionOps pci_vga_bochs_ops = {
.read = pci_vga_bochs_read,
.write = pci_vga_bochs_write,
.valid.min_access_size = 1,
.valid.max_access_size = 4,
.impl.min_access_size = 2,
.impl.max_access_size = 2,
.endianness = DEVICE_LITTLE_ENDIAN,
};
static int pci_std_vga_initfn(PCIDevice *dev)
{
PCIVGAState *d = DO_UPCAST(PCIVGAState, dev, dev);
VGACommonState *s = &d->vga;
/* vga + console init */
vga_common_init(s, OBJECT(dev), true);
vga_init(s, OBJECT(dev), pci_address_space(dev), pci_address_space_io(dev),
true);
s->con = graphic_console_init(DEVICE(dev), 0, s->hw_ops, s);
/* XXX: VGA_RAM_SIZE must be a power of two */
pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->vram);
/* mmio bar for vga register access */
if (d->flags & (1 << PCI_VGA_FLAG_ENABLE_MMIO)) {
memory_region_init(&d->mmio, NULL, "vga.mmio", 4096);
memory_region_init_io(&d->ioport, NULL, &pci_vga_ioport_ops, d,
"vga ioports remapped", PCI_VGA_IOPORT_SIZE);
memory_region_init_io(&d->bochs, NULL, &pci_vga_bochs_ops, d,
"bochs dispi interface", PCI_VGA_BOCHS_SIZE);
memory_region_add_subregion(&d->mmio, PCI_VGA_IOPORT_OFFSET,
&d->ioport);
memory_region_add_subregion(&d->mmio, PCI_VGA_BOCHS_OFFSET,
&d->bochs);
pci_register_bar(&d->dev, 2, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
}
if (!dev->rom_bar) {
/* compatibility with pc-0.13 and older */
vga_init_vbe(s, OBJECT(dev), pci_address_space(dev));
}
return 0;
}
static int pci_secondary_vga_initfn(PCIDevice *dev)
{
PCIVGAState *d = DO_UPCAST(PCIVGAState, dev, dev);
VGACommonState *s = &d->vga;
/* vga + console init */
vga_common_init(s, OBJECT(dev), false);
s->con = graphic_console_init(DEVICE(dev), 0, s->hw_ops, s);
/* mmio bar */
memory_region_init(&d->mmio, OBJECT(dev), "vga.mmio", 4096);
memory_region_init_io(&d->ioport, OBJECT(dev), &pci_vga_ioport_ops, d,
"vga ioports remapped", PCI_VGA_IOPORT_SIZE);
memory_region_init_io(&d->bochs, OBJECT(dev), &pci_vga_bochs_ops, d,
"bochs dispi interface", PCI_VGA_BOCHS_SIZE);
memory_region_add_subregion(&d->mmio, PCI_VGA_IOPORT_OFFSET,
&d->ioport);
memory_region_add_subregion(&d->mmio, PCI_VGA_BOCHS_OFFSET,
&d->bochs);
pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->vram);
pci_register_bar(&d->dev, 2, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
return 0;
}
static void pci_secondary_vga_reset(DeviceState *dev)
{
PCIVGAState *d = DO_UPCAST(PCIVGAState, dev.qdev, dev);
vga_common_reset(&d->vga);
}
static Property vga_pci_properties[] = {
DEFINE_PROP_UINT32("vgamem_mb", PCIVGAState, vga.vram_size_mb, 16),
DEFINE_PROP_BIT("mmio", PCIVGAState, flags, PCI_VGA_FLAG_ENABLE_MMIO, true),
DEFINE_PROP_END_OF_LIST(),
};
static Property secondary_pci_properties[] = {
DEFINE_PROP_UINT32("vgamem_mb", PCIVGAState, vga.vram_size_mb, 16),
DEFINE_PROP_END_OF_LIST(),
};
static void vga_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->init = pci_std_vga_initfn;
k->romfile = "vgabios-stdvga.bin";
k->vendor_id = PCI_VENDOR_ID_QEMU;
k->device_id = PCI_DEVICE_ID_QEMU_VGA;
k->class_id = PCI_CLASS_DISPLAY_VGA;
dc->vmsd = &vmstate_vga_pci;
dc->props = vga_pci_properties;
dc->hotpluggable = false;
set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
}
static void secondary_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->init = pci_secondary_vga_initfn;
k->vendor_id = PCI_VENDOR_ID_QEMU;
k->device_id = PCI_DEVICE_ID_QEMU_VGA;
k->class_id = PCI_CLASS_DISPLAY_OTHER;
dc->vmsd = &vmstate_vga_pci;
dc->props = secondary_pci_properties;
dc->reset = pci_secondary_vga_reset;
}
static const TypeInfo vga_info = {
.name = "VGA",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIVGAState),
.class_init = vga_class_init,
};
static const TypeInfo secondary_info = {
.name = "secondary-vga",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIVGAState),
.class_init = secondary_class_init,
};
static void vga_register_types(void)
{
type_register_static(&vga_info);
type_register_static(&secondary_info);
}
type_init(vga_register_types)