--- /dev/null
+/*
+ * 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 "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;
+ void *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,
+ 0x02, 0x20,
+ 0x04, 0x10,
+ 0x06, 0x30,
+ 0x08, 0x40,
+ 0x0A, 0x50,
+ 0x60, 0x60,
+ 0x70, 0x70,
+ 0x80, 0x70,
+ 0x90, 0x80,
+ 0xA0, 0x90,
+ 0xB0, 0xA0,
+ 0xC0, 0xB0,
+ 0xD0, 0xC0,
+ 0xE0, 0xD0,
+ 0xF0, 0xE0,
+ };
+
+ memory_region_init(escc_legacy, NULL, "escc-legacy", 256);
+ for (i = 0; i < ARRAY_SIZE(maps); i += 2) {
+ MemoryRegion *port = g_new(MemoryRegion, 1);
+ memory_region_init_alias(port, NULL, "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->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);
+ macio_ide_register_dma(ide, s->dbdma, dmaid);
+ 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, get_ticks_per_sec() * 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);
+ MemoryRegion *dbdma_mem;
+
+ memory_region_init(&s->bar, NULL, "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 = DBDMA_init(&dbdma_mem);
+ memory_region_add_subregion(&s->bar, 0x08000, dbdma_mem);
+}
+
+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;
+}
+
+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,
+};
+
+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));
+}
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