root / hw / grackle_pci.c @ f2c88dc1
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/*
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* QEMU Grackle PCI host (heathrow OldWorld PowerMac)
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*
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* Copyright (c) 2006-2007 Fabrice Bellard
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* Copyright (c) 2007 Jocelyn Mayer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "sysbus.h" |
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#include "ppc_mac.h" |
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#include "pci.h" |
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#include "pci_host.h" |
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/* debug Grackle */
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//#define DEBUG_GRACKLE
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#ifdef DEBUG_GRACKLE
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#define GRACKLE_DPRINTF(fmt, ...) \
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do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0) |
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#else
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#define GRACKLE_DPRINTF(fmt, ...)
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#endif
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typedef struct GrackleState { |
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SysBusDevice busdev; |
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PCIHostState host_state; |
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} GrackleState; |
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/* Don't know if this matches real hardware, but it agrees with OHW. */
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static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num) |
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{ |
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return (irq_num + (pci_dev->devfn >> 3)) & 3; |
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} |
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static void pci_grackle_set_irq(void *opaque, int irq_num, int level) |
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{ |
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qemu_irq *pic = opaque; |
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GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level);
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qemu_set_irq(pic[irq_num + 0x15], level);
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} |
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static void pci_grackle_reset(void *opaque) |
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{ |
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} |
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PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic) |
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{ |
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DeviceState *dev; |
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SysBusDevice *s; |
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GrackleState *d; |
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dev = qdev_create(NULL, "grackle"); |
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qdev_init_nofail(dev); |
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s = sysbus_from_qdev(dev); |
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d = FROM_SYSBUS(GrackleState, s); |
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d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
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pci_grackle_set_irq, |
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pci_grackle_map_irq, |
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pic, 0, 4); |
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pci_create_simple(d->host_state.bus, 0, "grackle"); |
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sysbus_mmio_map(s, 0, base);
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sysbus_mmio_map(s, 1, base + 0x00200000); |
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return d->host_state.bus;
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} |
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static int pci_grackle_init_device(SysBusDevice *dev) |
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{ |
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GrackleState *s; |
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int pci_mem_config, pci_mem_data;
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s = FROM_SYSBUS(GrackleState, dev); |
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pci_mem_config = pci_host_conf_register_mmio(&s->host_state, |
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DEVICE_LITTLE_ENDIAN); |
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pci_mem_data = pci_host_data_register_mmio(&s->host_state, |
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DEVICE_LITTLE_ENDIAN); |
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sysbus_init_mmio(dev, 0x1000, pci_mem_config);
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sysbus_init_mmio(dev, 0x1000, pci_mem_data);
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qemu_register_reset(pci_grackle_reset, &s->host_state); |
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return 0; |
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} |
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static int grackle_pci_host_init(PCIDevice *d) |
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{ |
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pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_MOTOROLA); |
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pci_config_set_device_id(d->config, PCI_DEVICE_ID_MOTOROLA_MPC106); |
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d->config[0x08] = 0x00; // revision |
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d->config[0x09] = 0x01; |
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pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST); |
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return 0; |
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} |
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static PCIDeviceInfo grackle_pci_host_info = {
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.qdev.name = "grackle",
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.qdev.size = sizeof(PCIDevice),
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.init = grackle_pci_host_init, |
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}; |
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static void grackle_register_devices(void) |
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{ |
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sysbus_register_dev("grackle", sizeof(GrackleState), |
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pci_grackle_init_device); |
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pci_qdev_register(&grackle_pci_host_info); |
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} |
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device_init(grackle_register_devices) |