2 * PowerMac MacIO device emulation
4 * Copyright (c) 2005-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 #include "hw/ppc/mac.h"
27 #include "hw/pci/pci.h"
28 #include "hw/ppc/mac_dbdma.h"
29 #include "hw/char/escc.h"
31 #define TYPE_MACIO "macio"
32 #define MACIO(obj) OBJECT_CHECK(MacIOState, (obj), TYPE_MACIO)
34 typedef struct MacIOState
43 MemoryRegion *pic_mem;
44 MemoryRegion *escc_mem;
48 #define OLDWORLD_MACIO(obj) \
49 OBJECT_CHECK(OldWorldMacIOState, (obj), TYPE_OLDWORLD_MACIO)
51 typedef struct OldWorldMacIOState {
53 MacIOState parent_obj;
58 MacIONVRAMState nvram;
62 #define NEWWORLD_MACIO(obj) \
63 OBJECT_CHECK(NewWorldMacIOState, (obj), TYPE_NEWWORLD_MACIO)
65 typedef struct NewWorldMacIOState {
67 MacIOState parent_obj;
74 * The mac-io has two interfaces to the ESCC. One is called "escc-legacy",
75 * while the other one is the normal, current ESCC interface.
77 * The magic below creates memory aliases to spawn the escc-legacy device
78 * purely by rerouting the respective registers to our escc region. This
79 * works because the only difference between the two memory regions is the
80 * register layout, not their semantics.
82 * Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf
84 static void macio_escc_legacy_setup(MacIOState *macio_state)
86 MemoryRegion *escc_legacy = g_new(MemoryRegion, 1);
87 MemoryRegion *bar = &macio_state->bar;
89 static const int maps[] = {
108 memory_region_init(escc_legacy, NULL, "escc-legacy", 256);
109 for (i = 0; i < ARRAY_SIZE(maps); i += 2) {
110 MemoryRegion *port = g_new(MemoryRegion, 1);
111 memory_region_init_alias(port, NULL, "escc-legacy-port",
112 macio_state->escc_mem, maps[i+1], 0x2);
113 memory_region_add_subregion(escc_legacy, maps[i], port);
116 memory_region_add_subregion(bar, 0x12000, escc_legacy);
119 static void macio_bar_setup(MacIOState *macio_state)
121 MemoryRegion *bar = &macio_state->bar;
123 if (macio_state->escc_mem) {
124 memory_region_add_subregion(bar, 0x13000, macio_state->escc_mem);
125 macio_escc_legacy_setup(macio_state);
129 static void macio_common_realize(PCIDevice *d, Error **errp)
131 MacIOState *s = MACIO(d);
132 SysBusDevice *sysbus_dev;
135 object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err);
137 error_propagate(errp, err);
140 sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
141 memory_region_add_subregion(&s->bar, 0x16000,
142 sysbus_mmio_get_region(sysbus_dev, 0));
145 pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar);
148 static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide,
149 qemu_irq irq0, qemu_irq irq1, int dmaid,
152 SysBusDevice *sysbus_dev;
154 sysbus_dev = SYS_BUS_DEVICE(ide);
155 sysbus_connect_irq(sysbus_dev, 0, irq0);
156 sysbus_connect_irq(sysbus_dev, 1, irq1);
157 macio_ide_register_dma(ide, s->dbdma, dmaid);
158 object_property_set_bool(OBJECT(ide), true, "realized", errp);
161 static void macio_oldworld_realize(PCIDevice *d, Error **errp)
163 MacIOState *s = MACIO(d);
164 OldWorldMacIOState *os = OLDWORLD_MACIO(d);
166 SysBusDevice *sysbus_dev;
170 macio_common_realize(d, &err);
172 error_propagate(errp, err);
176 sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
177 sysbus_connect_irq(sysbus_dev, 0, os->irqs[cur_irq++]);
179 object_property_set_bool(OBJECT(&os->nvram), true, "realized", &err);
181 error_propagate(errp, err);
184 sysbus_dev = SYS_BUS_DEVICE(&os->nvram);
185 memory_region_add_subregion(&s->bar, 0x60000,
186 sysbus_mmio_get_region(sysbus_dev, 0));
187 pmac_format_nvram_partition(&os->nvram, os->nvram.size);
191 memory_region_add_subregion(&s->bar, 0x00000, s->pic_mem);
195 for (i = 0; i < ARRAY_SIZE(os->ide); i++) {
196 qemu_irq irq0 = os->irqs[cur_irq++];
197 qemu_irq irq1 = os->irqs[cur_irq++];
199 macio_realize_ide(s, &os->ide[i], irq0, irq1, 0x16 + (i * 4), &err);
201 error_propagate(errp, err);
207 static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, size_t ide_size,
212 object_initialize(ide, ide_size, TYPE_MACIO_IDE);
213 qdev_set_parent_bus(DEVICE(ide), sysbus_get_default());
214 memory_region_add_subregion(&s->bar, 0x1f000 + ((index + 1) * 0x1000),
216 name = g_strdup_printf("ide[%i]", index);
217 object_property_add_child(OBJECT(s), name, OBJECT(ide), NULL);
221 static void macio_oldworld_init(Object *obj)
223 MacIOState *s = MACIO(obj);
224 OldWorldMacIOState *os = OLDWORLD_MACIO(obj);
228 qdev_init_gpio_out(DEVICE(obj), os->irqs, ARRAY_SIZE(os->irqs));
230 object_initialize(&os->nvram, sizeof(os->nvram), TYPE_MACIO_NVRAM);
231 dev = DEVICE(&os->nvram);
232 qdev_prop_set_uint32(dev, "size", 0x2000);
233 qdev_prop_set_uint32(dev, "it_shift", 4);
235 for (i = 0; i < 2; i++) {
236 macio_init_ide(s, &os->ide[i], sizeof(os->ide[i]), i);
240 static void timer_write(void *opaque, hwaddr addr, uint64_t value,
245 static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size)
248 uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
251 kltime = muldiv64(systime, 4194300, get_ticks_per_sec() * 4);
252 kltime = muldiv64(kltime, 18432000, 1048575);
259 value = kltime >> 32;
266 static const MemoryRegionOps timer_ops = {
268 .write = timer_write,
269 .endianness = DEVICE_LITTLE_ENDIAN,
272 static void macio_newworld_realize(PCIDevice *d, Error **errp)
274 MacIOState *s = MACIO(d);
275 NewWorldMacIOState *ns = NEWWORLD_MACIO(d);
277 SysBusDevice *sysbus_dev;
278 MemoryRegion *timer_memory = NULL;
282 macio_common_realize(d, &err);
284 error_propagate(errp, err);
288 sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
289 sysbus_connect_irq(sysbus_dev, 0, ns->irqs[cur_irq++]);
293 memory_region_add_subregion(&s->bar, 0x40000, s->pic_mem);
297 for (i = 0; i < ARRAY_SIZE(ns->ide); i++) {
298 qemu_irq irq0 = ns->irqs[cur_irq++];
299 qemu_irq irq1 = ns->irqs[cur_irq++];
301 macio_realize_ide(s, &ns->ide[i], irq0, irq1, 0x16 + (i * 4), &err);
303 error_propagate(errp, err);
309 timer_memory = g_new(MemoryRegion, 1);
310 memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer",
312 memory_region_add_subregion(&s->bar, 0x15000, timer_memory);
315 static void macio_newworld_init(Object *obj)
317 MacIOState *s = MACIO(obj);
318 NewWorldMacIOState *ns = NEWWORLD_MACIO(obj);
321 qdev_init_gpio_out(DEVICE(obj), ns->irqs, ARRAY_SIZE(ns->irqs));
323 for (i = 0; i < 2; i++) {
324 macio_init_ide(s, &ns->ide[i], sizeof(ns->ide[i]), i);
328 static void macio_instance_init(Object *obj)
330 MacIOState *s = MACIO(obj);
331 MemoryRegion *dbdma_mem;
333 memory_region_init(&s->bar, NULL, "macio", 0x80000);
335 object_initialize(&s->cuda, sizeof(s->cuda), TYPE_CUDA);
336 qdev_set_parent_bus(DEVICE(&s->cuda), sysbus_get_default());
337 object_property_add_child(obj, "cuda", OBJECT(&s->cuda), NULL);
339 s->dbdma = DBDMA_init(&dbdma_mem);
340 memory_region_add_subregion(&s->bar, 0x08000, dbdma_mem);
343 static const VMStateDescription vmstate_macio_oldworld = {
344 .name = "macio-oldworld",
346 .minimum_version_id = 0,
347 .fields = (VMStateField[]) {
348 VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState),
349 VMSTATE_END_OF_LIST()
353 static void macio_oldworld_class_init(ObjectClass *oc, void *data)
355 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
356 DeviceClass *dc = DEVICE_CLASS(oc);
358 pdc->realize = macio_oldworld_realize;
359 pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201;
360 dc->vmsd = &vmstate_macio_oldworld;
363 static const VMStateDescription vmstate_macio_newworld = {
364 .name = "macio-newworld",
366 .minimum_version_id = 0,
367 .fields = (VMStateField[]) {
368 VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState),
369 VMSTATE_END_OF_LIST()
373 static void macio_newworld_class_init(ObjectClass *oc, void *data)
375 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
376 DeviceClass *dc = DEVICE_CLASS(oc);
378 pdc->realize = macio_newworld_realize;
379 pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL;
380 dc->vmsd = &vmstate_macio_newworld;
383 static Property macio_properties[] = {
384 DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0),
385 DEFINE_PROP_END_OF_LIST()
388 static void macio_class_init(ObjectClass *klass, void *data)
390 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
391 DeviceClass *dc = DEVICE_CLASS(klass);
393 k->vendor_id = PCI_VENDOR_ID_APPLE;
394 k->class_id = PCI_CLASS_OTHERS << 8;
395 dc->props = macio_properties;
398 static const TypeInfo macio_oldworld_type_info = {
399 .name = TYPE_OLDWORLD_MACIO,
400 .parent = TYPE_MACIO,
401 .instance_size = sizeof(OldWorldMacIOState),
402 .instance_init = macio_oldworld_init,
403 .class_init = macio_oldworld_class_init,
406 static const TypeInfo macio_newworld_type_info = {
407 .name = TYPE_NEWWORLD_MACIO,
408 .parent = TYPE_MACIO,
409 .instance_size = sizeof(NewWorldMacIOState),
410 .instance_init = macio_newworld_init,
411 .class_init = macio_newworld_class_init,
414 static const TypeInfo macio_type_info = {
416 .parent = TYPE_PCI_DEVICE,
417 .instance_size = sizeof(MacIOState),
418 .instance_init = macio_instance_init,
420 .class_init = macio_class_init,
423 static void macio_register_types(void)
425 type_register_static(&macio_type_info);
426 type_register_static(&macio_oldworld_type_info);
427 type_register_static(&macio_newworld_type_info);
430 type_init(macio_register_types)
432 void macio_init(PCIDevice *d,
433 MemoryRegion *pic_mem,
434 MemoryRegion *escc_mem)
436 MacIOState *macio_state = MACIO(d);
438 macio_state->pic_mem = pic_mem;
439 macio_state->escc_mem = escc_mem;
440 /* Note: this code is strongly inspirated from the corresponding code
442 qdev_prop_set_uint64(DEVICE(&macio_state->cuda), "frequency",
443 macio_state->frequency);
445 qdev_init_nofail(DEVICE(d));