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/*
* QEMU PCI VGA Emulator.
*
* 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.h"
#include "console.h"
#include "pc.h"
#include "pci.h"
#include "vga_int.h"
#include "pixel_ops.h"
#include "qemu-timer.h"
#include "loader.h"
typedef struct PCIVGAState {
PCIDevice dev;
VGACommonState vga;
} PCIVGAState;
static const VMStateDescription vmstate_vga_pci = {
.name = "vga",
.version_id = 2,
.minimum_version_id = 2,
.minimum_version_id_old = 2,
.fields = (VMStateField []) {
VMSTATE_PCI_DEVICE(dev, PCIVGAState),
VMSTATE_STRUCT(vga, PCIVGAState, 0, vmstate_vga_common, VGACommonState),
VMSTATE_END_OF_LIST()
}
};
static void vga_map(PCIDevice *pci_dev, int region_num,
pcibus_t addr, pcibus_t size, int type)
{
PCIVGAState *d = (PCIVGAState *)pci_dev;
VGACommonState *s = &d->vga;
if (region_num == PCI_ROM_SLOT) {
cpu_register_physical_memory(addr, s->bios_size, s->bios_offset);
} else {
cpu_register_physical_memory(addr, s->vram_size, s->vram_offset);
s->map_addr = addr;
s->map_end = addr + s->vram_size;
vga_dirty_log_start(s);
}
}
static void pci_vga_write_config(PCIDevice *d,
uint32_t address, uint32_t val, int len)
{
PCIVGAState *pvs = container_of(d, PCIVGAState, dev);
VGACommonState *s = &pvs->vga;
pci_default_write_config(d, address, val, len);
if (s->map_addr && pvs->dev.io_regions[0].addr == -1)
s->map_addr = 0;
}
static int pci_vga_initfn(PCIDevice *dev)
{
PCIVGAState *d = DO_UPCAST(PCIVGAState, dev, dev);
VGACommonState *s = &d->vga;
uint8_t *pci_conf = d->dev.config;
// vga + console init
vga_common_init(s, VGA_RAM_SIZE);
vga_init(s);
s->ds = graphic_console_init(s->update, s->invalidate,
s->screen_dump, s->text_update, s);
// dummy VGA (same as Bochs ID)
pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_QEMU);
pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_QEMU_VGA);
pci_config_set_class(pci_conf, PCI_CLASS_DISPLAY_VGA);
pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
/* XXX: VGA_RAM_SIZE must be a power of two */
pci_register_bar(&d->dev, 0, VGA_RAM_SIZE,
PCI_BASE_ADDRESS_MEM_PREFETCH, vga_map);
if (s->bios_size) {
unsigned int bios_total_size;
/* must be a power of two */
bios_total_size = 1;
while (bios_total_size < s->bios_size)
bios_total_size <<= 1;
pci_register_bar(&d->dev, PCI_ROM_SLOT, bios_total_size,
PCI_BASE_ADDRESS_MEM_PREFETCH, vga_map);
}
#ifdef CONFIG_BOCHS_VBE
/* XXX: use optimized standard vga accesses */
cpu_register_physical_memory(VBE_DISPI_LFB_PHYSICAL_ADDRESS,
VGA_RAM_SIZE, s->vram_offset);
#endif
/* ROM BIOS */
rom_add_vga(VGABIOS_FILENAME);
return 0;
}
int pci_vga_init(PCIBus *bus,
unsigned long vga_bios_offset, int vga_bios_size)
{
PCIDevice *dev;
dev = pci_create(bus, -1, "VGA");
qdev_prop_set_uint32(&dev->qdev, "bios-offset", vga_bios_offset);
qdev_prop_set_uint32(&dev->qdev, "bios-size", vga_bios_size);
qdev_init_nofail(&dev->qdev);
return 0;
}
static PCIDeviceInfo vga_info = {
.qdev.name = "VGA",
.qdev.size = sizeof(PCIVGAState),
.qdev.vmsd = &vmstate_vga_pci,
.init = pci_vga_initfn,
.config_write = pci_vga_write_config,
.qdev.props = (Property[]) {
DEFINE_PROP_HEX32("bios-offset", PCIVGAState, vga.bios_offset, 0),
DEFINE_PROP_HEX32("bios-size", PCIVGAState, vga.bios_size, 0),
DEFINE_PROP_END_OF_LIST(),
}
};
static void vga_register(void)
{
pci_qdev_register(&vga_info);
}
device_init(vga_register);
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