diff options
Diffstat (limited to 'src/hw/pci-bridge/dec.c')
| -rw-r--r-- | src/hw/pci-bridge/dec.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/hw/pci-bridge/dec.c b/src/hw/pci-bridge/dec.c new file mode 100644 index 0000000..28d0ff9 --- /dev/null +++ b/src/hw/pci-bridge/dec.c @@ -0,0 +1,161 @@ +/* + * QEMU DEC 21154 PCI bridge + * + * 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 "dec.h" +#include "hw/sysbus.h" +#include "hw/pci/pci.h" +#include "hw/pci/pci_host.h" +#include "hw/pci/pci_bridge.h" +#include "hw/pci/pci_bus.h" + +/* debug DEC */ +//#define DEBUG_DEC + +#ifdef DEBUG_DEC +#define DEC_DPRINTF(fmt, ...) \ + do { printf("DEC: " fmt , ## __VA_ARGS__); } while (0) +#else +#define DEC_DPRINTF(fmt, ...) +#endif + +#define DEC_21154(obj) OBJECT_CHECK(DECState, (obj), TYPE_DEC_21154) + +typedef struct DECState { + PCIHostState parent_obj; +} DECState; + +static int dec_map_irq(PCIDevice *pci_dev, int irq_num) +{ + return irq_num; +} + +static int dec_pci_bridge_initfn(PCIDevice *pci_dev) +{ + return pci_bridge_initfn(pci_dev, TYPE_PCI_BUS); +} + +static void dec_21154_pci_bridge_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + + k->init = dec_pci_bridge_initfn; + k->exit = pci_bridge_exitfn; + k->vendor_id = PCI_VENDOR_ID_DEC; + k->device_id = PCI_DEVICE_ID_DEC_21154; + k->config_write = pci_bridge_write_config; + k->is_bridge = 1; + dc->desc = "DEC 21154 PCI-PCI bridge"; + dc->reset = pci_bridge_reset; + dc->vmsd = &vmstate_pci_device; +} + +static const TypeInfo dec_21154_pci_bridge_info = { + .name = "dec-21154-p2p-bridge", + .parent = TYPE_PCI_BRIDGE, + .instance_size = sizeof(PCIBridge), + .class_init = dec_21154_pci_bridge_class_init, +}; + +PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn) +{ + PCIDevice *dev; + PCIBridge *br; + + dev = pci_create_multifunction(parent_bus, devfn, false, + "dec-21154-p2p-bridge"); + br = PCI_BRIDGE(dev); + pci_bridge_map_irq(br, "DEC 21154 PCI-PCI bridge", dec_map_irq); + qdev_init_nofail(&dev->qdev); + return pci_bridge_get_sec_bus(br); +} + +static int pci_dec_21154_device_init(SysBusDevice *dev) +{ + PCIHostState *phb; + + phb = PCI_HOST_BRIDGE(dev); + + memory_region_init_io(&phb->conf_mem, OBJECT(dev), &pci_host_conf_le_ops, + dev, "pci-conf-idx", 0x1000); + memory_region_init_io(&phb->data_mem, OBJECT(dev), &pci_host_data_le_ops, + dev, "pci-data-idx", 0x1000); + sysbus_init_mmio(dev, &phb->conf_mem); + sysbus_init_mmio(dev, &phb->data_mem); + return 0; +} + +static void dec_21154_pci_host_realize(PCIDevice *d, Error **errp) +{ + /* PCI2PCI bridge same values as PearPC - check this */ +} + +static void dec_21154_pci_host_class_init(ObjectClass *klass, void *data) +{ + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + k->realize = dec_21154_pci_host_realize; + k->vendor_id = PCI_VENDOR_ID_DEC; + k->device_id = PCI_DEVICE_ID_DEC_21154; + k->revision = 0x02; + k->class_id = PCI_CLASS_BRIDGE_PCI; + k->is_bridge = 1; + /* + * PCI-facing part of the host bridge, not usable without the + * host-facing part, which can't be device_add'ed, yet. + */ + dc->cannot_instantiate_with_device_add_yet = true; +} + +static const TypeInfo dec_21154_pci_host_info = { + .name = "dec-21154", + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PCIDevice), + .class_init = dec_21154_pci_host_class_init, +}; + +static void pci_dec_21154_device_class_init(ObjectClass *klass, void *data) +{ + SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass); + + sdc->init = pci_dec_21154_device_init; +} + +static const TypeInfo pci_dec_21154_device_info = { + .name = TYPE_DEC_21154, + .parent = TYPE_PCI_HOST_BRIDGE, + .instance_size = sizeof(DECState), + .class_init = pci_dec_21154_device_class_init, +}; + +static void dec_register_types(void) +{ + type_register_static(&pci_dec_21154_device_info); + type_register_static(&dec_21154_pci_host_info); + type_register_static(&dec_21154_pci_bridge_info); +} + +type_init(dec_register_types) |
