hw/misc/macio/macio.c - qemu - Git at Google

 /*
  * PowerMac MacIO device emulation
  *
  * Copyright (c) 2005-2007 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 "qemu/osdep.h"
 #include "qapi/error.h"
 #include "hw/hw.h"
 #include "hw/ppc/mac.h"
 #include "hw/pci/pci.h"
 #include "hw/ppc/mac_dbdma.h"
 #include "hw/char/escc.h"

 #define TYPE_MACIO "macio"
 #define MACIO(obj) OBJECT_CHECK(MacIOState, (obj), TYPE_MACIO)

 typedef struct MacIOState
 {
     /*< private >*/
     PCIDevice parent;
     /*< public >*/

     MemoryRegion bar;
     CUDAState cuda;
     DBDMAState *dbdma;
     MemoryRegion *pic_mem;
     MemoryRegion *escc_mem;
     uint64_t frequency;
 } MacIOState;

 #define OLDWORLD_MACIO(obj) \
     OBJECT_CHECK(OldWorldMacIOState, (obj), TYPE_OLDWORLD_MACIO)

 typedef struct OldWorldMacIOState {
     /*< private >*/
     MacIOState parent_obj;
     /*< public >*/

     qemu_irq irqs[5];

     MacIONVRAMState nvram;
     MACIOIDEState ide[2];
 } OldWorldMacIOState;

 #define NEWWORLD_MACIO(obj) \
     OBJECT_CHECK(NewWorldMacIOState, (obj), TYPE_NEWWORLD_MACIO)

 typedef struct NewWorldMacIOState {
     /*< private >*/
     MacIOState parent_obj;
     /*< public >*/
     qemu_irq irqs[5];
     MACIOIDEState ide[2];
 } NewWorldMacIOState;

 /*
  * The mac-io has two interfaces to the ESCC. One is called "escc-legacy",
  * while the other one is the normal, current ESCC interface.
  *
  * The magic below creates memory aliases to spawn the escc-legacy device
  * purely by rerouting the respective registers to our escc region. This
  * works because the only difference between the two memory regions is the
  * register layout, not their semantics.
  *
  * Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf
  */
 static void macio_escc_legacy_setup(MacIOState *macio_state)
 {
     MemoryRegion *escc_legacy = g_new(MemoryRegion, 1);
     MemoryRegion *bar = &macio_state->bar;
     int i;
     static const int maps[] = {
         0x00, 0x00, /* Command B */
         0x02, 0x20, /* Command A */
         0x04, 0x10, /* Data B */
         0x06, 0x30, /* Data A */
         0x08, 0x40, /* Enhancement B */
         0x0A, 0x50, /* Enhancement A */
         0x80, 0x80, /* Recovery count */
         0x90, 0x90, /* Start A */
         0xa0, 0xa0, /* Start B */
         0xb0, 0xb0, /* Detect AB */
     };

     memory_region_init(escc_legacy, OBJECT(macio_state), "escc-legacy", 256);
     for (i = 0; i < ARRAY_SIZE(maps); i += 2) {
         MemoryRegion *port = g_new(MemoryRegion, 1);
         memory_region_init_alias(port, OBJECT(macio_state), "escc-legacy-port",
                                  macio_state->escc_mem, maps[i+1], 0x2);
         memory_region_add_subregion(escc_legacy, maps[i], port);
     }

     memory_region_add_subregion(bar, 0x12000, escc_legacy);
 }

 static void macio_bar_setup(MacIOState *macio_state)
 {
     MemoryRegion *bar = &macio_state->bar;

     if (macio_state->escc_mem) {
         memory_region_add_subregion(bar, 0x13000, macio_state->escc_mem);
         macio_escc_legacy_setup(macio_state);
     }
 }

 static void macio_common_realize(PCIDevice *d, Error **errp)
 {
     MacIOState *s = MACIO(d);
     SysBusDevice *sysbus_dev;
     Error *err = NULL;

     object_property_set_bool(OBJECT(s->dbdma), true, "realized", &err);
     if (err) {
         error_propagate(errp, err);
         return;
     }
     sysbus_dev = SYS_BUS_DEVICE(s->dbdma);
     memory_region_add_subregion(&s->bar, 0x08000,
                                 sysbus_mmio_get_region(sysbus_dev, 0));

     object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err);
     if (err) {
         error_propagate(errp, err);
         return;
     }
     sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
     memory_region_add_subregion(&s->bar, 0x16000,
                                 sysbus_mmio_get_region(sysbus_dev, 0));

     macio_bar_setup(s);
     pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar);
 }

 static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide,
                               qemu_irq irq0, qemu_irq irq1, int dmaid,
                               Error **errp)
 {
     SysBusDevice *sysbus_dev;

     sysbus_dev = SYS_BUS_DEVICE(ide);
     sysbus_connect_irq(sysbus_dev, 0, irq0);
     sysbus_connect_irq(sysbus_dev, 1, irq1);
     qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid);
     object_property_set_link(OBJECT(ide), OBJECT(s->dbdma), "dbdma", errp);
     macio_ide_register_dma(ide);

     object_property_set_bool(OBJECT(ide), true, "realized", errp);
 }

 static void macio_oldworld_realize(PCIDevice *d, Error **errp)
 {
     MacIOState *s = MACIO(d);
     OldWorldMacIOState *os = OLDWORLD_MACIO(d);
     Error *err = NULL;
     SysBusDevice *sysbus_dev;
     int i;
     int cur_irq = 0;

     macio_common_realize(d, &err);
     if (err) {
         error_propagate(errp, err);
         return;
     }

     sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
     sysbus_connect_irq(sysbus_dev, 0, os->irqs[cur_irq++]);

     object_property_set_bool(OBJECT(&os->nvram), true, "realized", &err);
     if (err) {
         error_propagate(errp, err);
         return;
     }
     sysbus_dev = SYS_BUS_DEVICE(&os->nvram);
     memory_region_add_subregion(&s->bar, 0x60000,
                                 sysbus_mmio_get_region(sysbus_dev, 0));
     pmac_format_nvram_partition(&os->nvram, os->nvram.size);

     if (s->pic_mem) {
         /* Heathrow PIC */
         memory_region_add_subregion(&s->bar, 0x00000, s->pic_mem);
     }

     /* IDE buses */
     for (i = 0; i < ARRAY_SIZE(os->ide); i++) {
         qemu_irq irq0 = os->irqs[cur_irq++];
         qemu_irq irq1 = os->irqs[cur_irq++];

         macio_realize_ide(s, &os->ide[i], irq0, irq1, 0x16 + (i * 4), &err);
         if (err) {
             error_propagate(errp, err);
             return;
         }
     }
 }

 static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, size_t ide_size,
                            int index)
 {
     gchar *name;

     object_initialize(ide, ide_size, TYPE_MACIO_IDE);
     qdev_set_parent_bus(DEVICE(ide), sysbus_get_default());
     memory_region_add_subregion(&s->bar, 0x1f000 + ((index + 1) * 0x1000),
                                 &ide->mem);
     name = g_strdup_printf("ide[%i]", index);
     object_property_add_child(OBJECT(s), name, OBJECT(ide), NULL);
     g_free(name);
 }

 static void macio_oldworld_init(Object *obj)
 {
     MacIOState *s = MACIO(obj);
     OldWorldMacIOState *os = OLDWORLD_MACIO(obj);
     DeviceState *dev;
     int i;

     qdev_init_gpio_out(DEVICE(obj), os->irqs, ARRAY_SIZE(os->irqs));

     object_initialize(&os->nvram, sizeof(os->nvram), TYPE_MACIO_NVRAM);
     dev = DEVICE(&os->nvram);
     qdev_prop_set_uint32(dev, "size", 0x2000);
     qdev_prop_set_uint32(dev, "it_shift", 4);

     for (i = 0; i < 2; i++) {
         macio_init_ide(s, &os->ide[i], sizeof(os->ide[i]), i);
     }
 }

 static void timer_write(void *opaque, hwaddr addr, uint64_t value,
                        unsigned size)
 {
 }

 static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size)
 {
     uint32_t value = 0;
     uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
     uint64_t kltime;

     kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4);
     kltime = muldiv64(kltime, 18432000, 1048575);

     switch (addr) {
     case 0x38:
         value = kltime;
         break;
     case 0x3c:
         value = kltime >> 32;
         break;
     }

     return value;
 }

 static const MemoryRegionOps timer_ops = {
     .read = timer_read,
     .write = timer_write,
     .endianness = DEVICE_LITTLE_ENDIAN,
 };

 static void macio_newworld_realize(PCIDevice *d, Error **errp)
 {
     MacIOState *s = MACIO(d);
     NewWorldMacIOState *ns = NEWWORLD_MACIO(d);
     Error *err = NULL;
     SysBusDevice *sysbus_dev;
     MemoryRegion *timer_memory = NULL;
     int i;
     int cur_irq = 0;

     macio_common_realize(d, &err);
     if (err) {
         error_propagate(errp, err);
         return;
     }

     sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
     sysbus_connect_irq(sysbus_dev, 0, ns->irqs[cur_irq++]);

     if (s->pic_mem) {
         /* OpenPIC */
         memory_region_add_subregion(&s->bar, 0x40000, s->pic_mem);
     }

     /* IDE buses */
     for (i = 0; i < ARRAY_SIZE(ns->ide); i++) {
         qemu_irq irq0 = ns->irqs[cur_irq++];
         qemu_irq irq1 = ns->irqs[cur_irq++];

         macio_realize_ide(s, &ns->ide[i], irq0, irq1, 0x16 + (i * 4), &err);
         if (err) {
             error_propagate(errp, err);
             return;
         }
     }

     /* Timer */
     timer_memory = g_new(MemoryRegion, 1);
     memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer",
                           0x1000);
     memory_region_add_subregion(&s->bar, 0x15000, timer_memory);
 }

 static void macio_newworld_init(Object *obj)
 {
     MacIOState *s = MACIO(obj);
     NewWorldMacIOState *ns = NEWWORLD_MACIO(obj);
     int i;

     qdev_init_gpio_out(DEVICE(obj), ns->irqs, ARRAY_SIZE(ns->irqs));

     for (i = 0; i < 2; i++) {
         macio_init_ide(s, &ns->ide[i], sizeof(ns->ide[i]), i);
     }
 }

 static void macio_instance_init(Object *obj)
 {
     MacIOState *s = MACIO(obj);

     memory_region_init(&s->bar, obj, "macio", 0x80000);

     object_initialize(&s->cuda, sizeof(s->cuda), TYPE_CUDA);
     qdev_set_parent_bus(DEVICE(&s->cuda), sysbus_get_default());
     object_property_add_child(obj, "cuda", OBJECT(&s->cuda), NULL);

     s->dbdma = MAC_DBDMA(object_new(TYPE_MAC_DBDMA));
     object_property_add_child(obj, "dbdma", OBJECT(s->dbdma), NULL);
 }

 static const VMStateDescription vmstate_macio_oldworld = {
     .name = "macio-oldworld",
     .version_id = 0,
     .minimum_version_id = 0,
     .fields = (VMStateField[]) {
         VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState),
         VMSTATE_END_OF_LIST()
     }
 };

 static void macio_oldworld_class_init(ObjectClass *oc, void *data)
 {
     PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
     DeviceClass *dc = DEVICE_CLASS(oc);

     pdc->realize = macio_oldworld_realize;
     pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201;
     dc->vmsd = &vmstate_macio_oldworld;
 }

 static const VMStateDescription vmstate_macio_newworld = {
     .name = "macio-newworld",
     .version_id = 0,
     .minimum_version_id = 0,
     .fields = (VMStateField[]) {
         VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState),
         VMSTATE_END_OF_LIST()
     }
 };

 static void macio_newworld_class_init(ObjectClass *oc, void *data)
 {
     PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
     DeviceClass *dc = DEVICE_CLASS(oc);

     pdc->realize = macio_newworld_realize;
     pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL;
     dc->vmsd = &vmstate_macio_newworld;
 }

 static Property macio_properties[] = {
     DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0),
     DEFINE_PROP_END_OF_LIST()
 };

 static void macio_class_init(ObjectClass *klass, void *data)
 {
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
     DeviceClass *dc = DEVICE_CLASS(klass);

     k->vendor_id = PCI_VENDOR_ID_APPLE;
     k->class_id = PCI_CLASS_OTHERS << 8;
     dc->props = macio_properties;
     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
 }

 static const TypeInfo macio_oldworld_type_info = {
     .name          = TYPE_OLDWORLD_MACIO,
     .parent        = TYPE_MACIO,
     .instance_size = sizeof(OldWorldMacIOState),
     .instance_init = macio_oldworld_init,
     .class_init    = macio_oldworld_class_init,
 };

 static const TypeInfo macio_newworld_type_info = {
     .name          = TYPE_NEWWORLD_MACIO,
     .parent        = TYPE_MACIO,
     .instance_size = sizeof(NewWorldMacIOState),
     .instance_init = macio_newworld_init,
     .class_init    = macio_newworld_class_init,
 };

 static const TypeInfo macio_type_info = {
     .name          = TYPE_MACIO,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(MacIOState),
     .instance_init = macio_instance_init,
     .abstract      = true,
     .class_init    = macio_class_init,
     .interfaces = (InterfaceInfo[]) {
         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
         { },
     },
 };

 static void macio_register_types(void)
 {
     type_register_static(&macio_type_info);
     type_register_static(&macio_oldworld_type_info);
     type_register_static(&macio_newworld_type_info);
 }

 type_init(macio_register_types)

 void macio_init(PCIDevice *d,
                 MemoryRegion *pic_mem,
                 MemoryRegion *escc_mem)
 {
     MacIOState *macio_state = MACIO(d);

     macio_state->pic_mem = pic_mem;
     macio_state->escc_mem = escc_mem;
     /* Note: this code is strongly inspirated from the corresponding code
        in PearPC */
     qdev_prop_set_uint64(DEVICE(&macio_state->cuda), "frequency",
                          macio_state->frequency);

     qdev_init_nofail(DEVICE(d));
 }
	/*
	* PowerMac MacIO device emulation
	*
	* Copyright (c) 2005-2007 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 "qemu/osdep.h"
	#include "qapi/error.h"
	#include "hw/hw.h"
	#include "hw/ppc/mac.h"
	#include "hw/pci/pci.h"
	#include "hw/ppc/mac_dbdma.h"
	#include "hw/char/escc.h"

	#define TYPE_MACIO "macio"
	#define MACIO(obj) OBJECT_CHECK(MacIOState, (obj), TYPE_MACIO)

	typedef struct MacIOState
	{
	/< private >/
	PCIDevice parent;
	/< public >/

	MemoryRegion bar;
	CUDAState cuda;
	DBDMAState *dbdma;
	MemoryRegion *pic_mem;
	MemoryRegion *escc_mem;
	uint64_t frequency;
	} MacIOState;

	#define OLDWORLD_MACIO(obj) \
	OBJECT_CHECK(OldWorldMacIOState, (obj), TYPE_OLDWORLD_MACIO)

	typedef struct OldWorldMacIOState {
	/< private >/
	MacIOState parent_obj;
	/< public >/

	qemu_irq irqs[5];

	MacIONVRAMState nvram;
	MACIOIDEState ide[2];
	} OldWorldMacIOState;

	#define NEWWORLD_MACIO(obj) \
	OBJECT_CHECK(NewWorldMacIOState, (obj), TYPE_NEWWORLD_MACIO)

	typedef struct NewWorldMacIOState {
	/< private >/
	MacIOState parent_obj;
	/< public >/
	qemu_irq irqs[5];
	MACIOIDEState ide[2];
	} NewWorldMacIOState;

	/*
	* The mac-io has two interfaces to the ESCC. One is called "escc-legacy",
	* while the other one is the normal, current ESCC interface.
	*
	* The magic below creates memory aliases to spawn the escc-legacy device
	* purely by rerouting the respective registers to our escc region. This
	* works because the only difference between the two memory regions is the
	* register layout, not their semantics.
	*
	* Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf
	*/
	static void macio_escc_legacy_setup(MacIOState *macio_state)
	{
	MemoryRegion *escc_legacy = g_new(MemoryRegion, 1);
	MemoryRegion *bar = &macio_state->bar;
	int i;
	static const int maps[] = {
	0x00, 0x00, /* Command B */
	0x02, 0x20, /* Command A */
	0x04, 0x10, /* Data B */
	0x06, 0x30, /* Data A */
	0x08, 0x40, /* Enhancement B */
	0x0A, 0x50, /* Enhancement A */
	0x80, 0x80, /* Recovery count */
	0x90, 0x90, /* Start A */
	0xa0, 0xa0, /* Start B */
	0xb0, 0xb0, /* Detect AB */
	};

	memory_region_init(escc_legacy, OBJECT(macio_state), "escc-legacy", 256);
	for (i = 0; i < ARRAY_SIZE(maps); i += 2) {
	MemoryRegion *port = g_new(MemoryRegion, 1);
	memory_region_init_alias(port, OBJECT(macio_state), "escc-legacy-port",
	macio_state->escc_mem, maps[i+1], 0x2);
	memory_region_add_subregion(escc_legacy, maps[i], port);
	}

	memory_region_add_subregion(bar, 0x12000, escc_legacy);
	}

	static void macio_bar_setup(MacIOState *macio_state)
	{
	MemoryRegion *bar = &macio_state->bar;

	if (macio_state->escc_mem) {
	memory_region_add_subregion(bar, 0x13000, macio_state->escc_mem);
	macio_escc_legacy_setup(macio_state);
	}
	}

	static void macio_common_realize(PCIDevice d, Error *errp)
	{
	MacIOState *s = MACIO(d);
	SysBusDevice *sysbus_dev;
	Error *err = NULL;

	object_property_set_bool(OBJECT(s->dbdma), true, "realized", &err);
	if (err) {
	error_propagate(errp, err);
	return;
	}
	sysbus_dev = SYS_BUS_DEVICE(s->dbdma);
	memory_region_add_subregion(&s->bar, 0x08000,
	sysbus_mmio_get_region(sysbus_dev, 0));

	object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err);
	if (err) {
	error_propagate(errp, err);
	return;
	}
	sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
	memory_region_add_subregion(&s->bar, 0x16000,
	sysbus_mmio_get_region(sysbus_dev, 0));

	macio_bar_setup(s);
	pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar);
	}

	static void macio_realize_ide(MacIOState s, MACIOIDEState ide,
	qemu_irq irq0, qemu_irq irq1, int dmaid,
	Error **errp)
	{
	SysBusDevice *sysbus_dev;

	sysbus_dev = SYS_BUS_DEVICE(ide);
	sysbus_connect_irq(sysbus_dev, 0, irq0);
	sysbus_connect_irq(sysbus_dev, 1, irq1);
	qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid);
	object_property_set_link(OBJECT(ide), OBJECT(s->dbdma), "dbdma", errp);
	macio_ide_register_dma(ide);

	object_property_set_bool(OBJECT(ide), true, "realized", errp);
	}

	static void macio_oldworld_realize(PCIDevice d, Error *errp)
	{
	MacIOState *s = MACIO(d);
	OldWorldMacIOState *os = OLDWORLD_MACIO(d);
	Error *err = NULL;
	SysBusDevice *sysbus_dev;
	int i;
	int cur_irq = 0;

	macio_common_realize(d, &err);
	if (err) {
	error_propagate(errp, err);
	return;
	}

	sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
	sysbus_connect_irq(sysbus_dev, 0, os->irqs[cur_irq++]);

	object_property_set_bool(OBJECT(&os->nvram), true, "realized", &err);
	if (err) {
	error_propagate(errp, err);
	return;
	}
	sysbus_dev = SYS_BUS_DEVICE(&os->nvram);
	memory_region_add_subregion(&s->bar, 0x60000,
	sysbus_mmio_get_region(sysbus_dev, 0));
	pmac_format_nvram_partition(&os->nvram, os->nvram.size);

	if (s->pic_mem) {
	/* Heathrow PIC */
	memory_region_add_subregion(&s->bar, 0x00000, s->pic_mem);
	}

	/* IDE buses */
	for (i = 0; i < ARRAY_SIZE(os->ide); i++) {
	qemu_irq irq0 = os->irqs[cur_irq++];
	qemu_irq irq1 = os->irqs[cur_irq++];

	macio_realize_ide(s, &os->ide[i], irq0, irq1, 0x16 + (i * 4), &err);
	if (err) {
	error_propagate(errp, err);
	return;
	}
	}
	}

	static void macio_init_ide(MacIOState s, MACIOIDEState ide, size_t ide_size,
	int index)
	{
	gchar *name;

	object_initialize(ide, ide_size, TYPE_MACIO_IDE);
	qdev_set_parent_bus(DEVICE(ide), sysbus_get_default());
	memory_region_add_subregion(&s->bar, 0x1f000 + ((index + 1) * 0x1000),
	&ide->mem);
	name = g_strdup_printf("ide[%i]", index);
	object_property_add_child(OBJECT(s), name, OBJECT(ide), NULL);
	g_free(name);
	}

	static void macio_oldworld_init(Object *obj)
	{
	MacIOState *s = MACIO(obj);
	OldWorldMacIOState *os = OLDWORLD_MACIO(obj);
	DeviceState *dev;
	int i;

	qdev_init_gpio_out(DEVICE(obj), os->irqs, ARRAY_SIZE(os->irqs));

	object_initialize(&os->nvram, sizeof(os->nvram), TYPE_MACIO_NVRAM);
	dev = DEVICE(&os->nvram);
	qdev_prop_set_uint32(dev, "size", 0x2000);
	qdev_prop_set_uint32(dev, "it_shift", 4);

	for (i = 0; i < 2; i++) {
	macio_init_ide(s, &os->ide[i], sizeof(os->ide[i]), i);
	}
	}

	static void timer_write(void *opaque, hwaddr addr, uint64_t value,
	unsigned size)
	{
	}

	static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size)
	{
	uint32_t value = 0;
	uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
	uint64_t kltime;

	kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4);
	kltime = muldiv64(kltime, 18432000, 1048575);

	switch (addr) {
	case 0x38:
	value = kltime;
	break;
	case 0x3c:
	value = kltime >> 32;
	break;
	}

	return value;
	}

	static const MemoryRegionOps timer_ops = {
	.read = timer_read,
	.write = timer_write,
	.endianness = DEVICE_LITTLE_ENDIAN,
	};

	static void macio_newworld_realize(PCIDevice d, Error *errp)
	{
	MacIOState *s = MACIO(d);
	NewWorldMacIOState *ns = NEWWORLD_MACIO(d);
	Error *err = NULL;
	SysBusDevice *sysbus_dev;
	MemoryRegion *timer_memory = NULL;
	int i;
	int cur_irq = 0;

	macio_common_realize(d, &err);
	if (err) {
	error_propagate(errp, err);
	return;
	}

	sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
	sysbus_connect_irq(sysbus_dev, 0, ns->irqs[cur_irq++]);

	if (s->pic_mem) {
	/* OpenPIC */
	memory_region_add_subregion(&s->bar, 0x40000, s->pic_mem);
	}

	/* IDE buses */
	for (i = 0; i < ARRAY_SIZE(ns->ide); i++) {
	qemu_irq irq0 = ns->irqs[cur_irq++];
	qemu_irq irq1 = ns->irqs[cur_irq++];

	macio_realize_ide(s, &ns->ide[i], irq0, irq1, 0x16 + (i * 4), &err);
	if (err) {
	error_propagate(errp, err);
	return;
	}
	}

	/* Timer */
	timer_memory = g_new(MemoryRegion, 1);
	memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer",
	0x1000);
	memory_region_add_subregion(&s->bar, 0x15000, timer_memory);
	}

	static void macio_newworld_init(Object *obj)
	{
	MacIOState *s = MACIO(obj);
	NewWorldMacIOState *ns = NEWWORLD_MACIO(obj);
	int i;

	qdev_init_gpio_out(DEVICE(obj), ns->irqs, ARRAY_SIZE(ns->irqs));

	for (i = 0; i < 2; i++) {
	macio_init_ide(s, &ns->ide[i], sizeof(ns->ide[i]), i);
	}
	}

	static void macio_instance_init(Object *obj)
	{
	MacIOState *s = MACIO(obj);

	memory_region_init(&s->bar, obj, "macio", 0x80000);

	object_initialize(&s->cuda, sizeof(s->cuda), TYPE_CUDA);
	qdev_set_parent_bus(DEVICE(&s->cuda), sysbus_get_default());
	object_property_add_child(obj, "cuda", OBJECT(&s->cuda), NULL);

	s->dbdma = MAC_DBDMA(object_new(TYPE_MAC_DBDMA));
	object_property_add_child(obj, "dbdma", OBJECT(s->dbdma), NULL);
	}

	static const VMStateDescription vmstate_macio_oldworld = {
	.name = "macio-oldworld",
	.version_id = 0,
	.minimum_version_id = 0,
	.fields = (VMStateField[]) {
	VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState),
	VMSTATE_END_OF_LIST()
	}
	};

	static void macio_oldworld_class_init(ObjectClass oc, void data)
	{
	PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
	DeviceClass *dc = DEVICE_CLASS(oc);

	pdc->realize = macio_oldworld_realize;
	pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201;
	dc->vmsd = &vmstate_macio_oldworld;
	}

	static const VMStateDescription vmstate_macio_newworld = {
	.name = "macio-newworld",
	.version_id = 0,
	.minimum_version_id = 0,
	.fields = (VMStateField[]) {
	VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState),
	VMSTATE_END_OF_LIST()
	}
	};

	static void macio_newworld_class_init(ObjectClass oc, void data)
	{
	PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
	DeviceClass *dc = DEVICE_CLASS(oc);

	pdc->realize = macio_newworld_realize;
	pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL;
	dc->vmsd = &vmstate_macio_newworld;
	}

	static Property macio_properties[] = {
	DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0),
	DEFINE_PROP_END_OF_LIST()
	};

	static void macio_class_init(ObjectClass klass, void data)
	{
	PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
	DeviceClass *dc = DEVICE_CLASS(klass);

	k->vendor_id = PCI_VENDOR_ID_APPLE;
	k->class_id = PCI_CLASS_OTHERS << 8;
	dc->props = macio_properties;
	set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
	}

	static const TypeInfo macio_oldworld_type_info = {
	.name = TYPE_OLDWORLD_MACIO,
	.parent = TYPE_MACIO,
	.instance_size = sizeof(OldWorldMacIOState),
	.instance_init = macio_oldworld_init,
	.class_init = macio_oldworld_class_init,
	};

	static const TypeInfo macio_newworld_type_info = {
	.name = TYPE_NEWWORLD_MACIO,
	.parent = TYPE_MACIO,
	.instance_size = sizeof(NewWorldMacIOState),
	.instance_init = macio_newworld_init,
	.class_init = macio_newworld_class_init,
	};

	static const TypeInfo macio_type_info = {
	.name = TYPE_MACIO,
	.parent = TYPE_PCI_DEVICE,
	.instance_size = sizeof(MacIOState),
	.instance_init = macio_instance_init,
	.abstract = true,
	.class_init = macio_class_init,
	.interfaces = (InterfaceInfo[]) {
	{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
	{ },
	},
	};

	static void macio_register_types(void)
	{
	type_register_static(&macio_type_info);
	type_register_static(&macio_oldworld_type_info);
	type_register_static(&macio_newworld_type_info);
	}

	type_init(macio_register_types)

	void macio_init(PCIDevice *d,
	MemoryRegion *pic_mem,
	MemoryRegion *escc_mem)
	{
	MacIOState *macio_state = MACIO(d);

	macio_state->pic_mem = pic_mem;
	macio_state->escc_mem = escc_mem;
	/* Note: this code is strongly inspirated from the corresponding code
	in PearPC */
	qdev_prop_set_uint64(DEVICE(&macio_state->cuda), "frequency",
	macio_state->frequency);

	qdev_init_nofail(DEVICE(d));
	}