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/*
* QEMU Grackle PCI host (heathrow OldWorld PowerMac)
*
* Copyright (c) 2006-2007 Fabrice Bellard
* Copyright (c) 2007 Jocelyn Mayer
*
* 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 "sysbus.h"
#include "ppc_mac.h"
#include "pci.h"
#include "pci_host.h"
/* debug Grackle */
//#define DEBUG_GRACKLE
#ifdef DEBUG_GRACKLE
#define GRACKLE_DPRINTF(fmt, ...) \
do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0)
#else
#define GRACKLE_DPRINTF(fmt, ...)
#endif
typedef struct GrackleState {
SysBusDevice busdev;
PCIHostState host_state;
} GrackleState;
/* Don't know if this matches real hardware, but it agrees with OHW. */
static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
{
return (irq_num + (pci_dev->devfn >> 3)) & 3;
}
static void pci_grackle_set_irq(void *opaque, int irq_num, int level)
{
qemu_irq *pic = opaque;
GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level);
qemu_set_irq(pic[irq_num + 0x15], level);
}
static void pci_grackle_save(QEMUFile* f, void *opaque)
{
PCIDevice *d = opaque;
pci_device_save(d, f);
}
static int pci_grackle_load(QEMUFile* f, void *opaque, int version_id)
{
PCIDevice *d = opaque;
if (version_id != 1)
return -EINVAL;
return pci_device_load(d, f);
}
static void pci_grackle_reset(void *opaque)
{
}
PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic)
{
DeviceState *dev;
SysBusDevice *s;
GrackleState *d;
dev = qdev_create(NULL, "grackle");
qdev_init_nofail(dev);
s = sysbus_from_qdev(dev);
d = FROM_SYSBUS(GrackleState, s);
d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
pci_grackle_set_irq,
pci_grackle_map_irq,
pic, 0, 4);
pci_create_simple(d->host_state.bus, 0, "grackle");
sysbus_mmio_map(s, 0, base);
sysbus_mmio_map(s, 1, base + 0x00200000);
return d->host_state.bus;
}
static int pci_grackle_init_device(SysBusDevice *dev)
{
GrackleState *s;
int pci_mem_config, pci_mem_data;
s = FROM_SYSBUS(GrackleState, dev);
pci_mem_config = pci_host_conf_register_mmio(&s->host_state, 1);
pci_mem_data = pci_host_data_register_mmio(&s->host_state, 1);
sysbus_init_mmio(dev, 0x1000, pci_mem_config);
sysbus_init_mmio(dev, 0x1000, pci_mem_data);
register_savevm(&dev->qdev, "grackle", 0, 1, pci_grackle_save,
pci_grackle_load, &s->host_state);
qemu_register_reset(pci_grackle_reset, &s->host_state);
return 0;
}
static int grackle_pci_host_init(PCIDevice *d)
{
pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_MOTOROLA);
pci_config_set_device_id(d->config, PCI_DEVICE_ID_MOTOROLA_MPC106);
d->config[0x08] = 0x00; // revision
d->config[0x09] = 0x01;
pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
return 0;
}
static PCIDeviceInfo grackle_pci_host_info = {
.qdev.name = "grackle",
.qdev.size = sizeof(PCIDevice),
.init = grackle_pci_host_init,
};
static void grackle_register_devices(void)
{
sysbus_register_dev("grackle", sizeof(GrackleState),
pci_grackle_init_device);
pci_qdev_register(&grackle_pci_host_info);
}
device_init(grackle_register_devices)
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