| /* |
| * 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 int macio_common_initfn(PCIDevice *d) |
| { |
| MacIOState *s = MACIO(d); |
| SysBusDevice *sysbus_dev; |
| int ret; |
| |
| d->config[0x3d] = 0x01; // interrupt on pin 1 |
| |
| ret = qdev_init(DEVICE(&s->cuda)); |
| if (ret < 0) { |
| return ret; |
| } |
| 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); |
| |
| return 0; |
| } |
| |
| static int macio_initfn_ide(MacIOState *s, MACIOIDEState *ide, qemu_irq irq0, |
| qemu_irq irq1, int dmaid) |
| { |
| 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); |
| return qdev_init(DEVICE(ide)); |
| } |
| |
| static int macio_oldworld_initfn(PCIDevice *d) |
| { |
| MacIOState *s = MACIO(d); |
| OldWorldMacIOState *os = OLDWORLD_MACIO(d); |
| SysBusDevice *sysbus_dev; |
| int i; |
| int cur_irq = 0; |
| int ret = macio_common_initfn(d); |
| if (ret < 0) { |
| return ret; |
| } |
| |
| sysbus_dev = SYS_BUS_DEVICE(&s->cuda); |
| sysbus_connect_irq(sysbus_dev, 0, os->irqs[cur_irq++]); |
| |
| ret = qdev_init(DEVICE(&os->nvram)); |
| if (ret < 0) { |
| return ret; |
| } |
| 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++]; |
| |
| ret = macio_initfn_ide(s, &os->ide[i], irq0, irq1, 0x16 + (i * 4)); |
| if (ret < 0) { |
| return ret; |
| } |
| } |
| |
| return 0; |
| } |
| |
| 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 int macio_newworld_initfn(PCIDevice *d) |
| { |
| MacIOState *s = MACIO(d); |
| NewWorldMacIOState *ns = NEWWORLD_MACIO(d); |
| SysBusDevice *sysbus_dev; |
| MemoryRegion *timer_memory = NULL; |
| int i; |
| int cur_irq = 0; |
| int ret = macio_common_initfn(d); |
| if (ret < 0) { |
| return ret; |
| } |
| |
| 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++]; |
| |
| ret = macio_initfn_ide(s, &ns->ide[i], irq0, irq1, 0x16 + (i * 4)); |
| if (ret < 0) { |
| return ret; |
| } |
| } |
| |
| /* 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); |
| |
| return 0; |
| } |
| |
| 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->init = macio_oldworld_initfn; |
| 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->init = macio_newworld_initfn; |
| 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)); |
| } |