783753fd53
Move pci bridge related code into pci_bridge.c from pci.c for further enhancement. pci.c is big enough now, so split it out. No code change but exporting some accesser functions. In fact, few pci bridge functions stays in pci.c. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/*
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* QEMU DEC 21154 PCI bridge
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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 "dec_pci.h"
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#include "sysbus.h"
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#include "pci.h"
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#include "pci_host.h"
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#include "pci_bridge.h"
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/* debug DEC */
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//#define DEBUG_DEC
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#ifdef DEBUG_DEC
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#define DEC_DPRINTF(fmt, ...) \
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do { printf("DEC: " fmt , ## __VA_ARGS__); } while (0)
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#else
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#define DEC_DPRINTF(fmt, ...)
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#endif
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typedef struct DECState {
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SysBusDevice busdev;
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PCIHostState host_state;
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} DECState;
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static int dec_map_irq(PCIDevice *pci_dev, int irq_num)
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{
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return irq_num;
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}
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PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn)
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{
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DeviceState *dev;
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PCIBus *ret;
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dev = qdev_create(NULL, "dec-21154");
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qdev_init_nofail(dev);
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ret = pci_bridge_init(parent_bus, devfn, false,
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PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21154,
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dec_map_irq, "DEC 21154 PCI-PCI bridge");
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return ret;
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}
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static int pci_dec_21154_init_device(SysBusDevice *dev)
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{
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DECState *s;
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int pci_mem_config, pci_mem_data;
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s = FROM_SYSBUS(DECState, dev);
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pci_mem_config = pci_host_conf_register_mmio(&s->host_state, 1);
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pci_mem_data = pci_host_data_register_mmio(&s->host_state, 1);
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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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return 0;
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}
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static int dec_21154_pci_host_init(PCIDevice *d)
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{
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/* PCI2PCI bridge same values as PearPC - check this */
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pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC);
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pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154);
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pci_set_byte(d->config + PCI_REVISION_ID, 0x02);
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pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI);
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return 0;
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}
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static PCIDeviceInfo dec_21154_pci_host_info = {
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.qdev.name = "dec-21154",
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.qdev.size = sizeof(PCIDevice),
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.init = dec_21154_pci_host_init,
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.is_bridge = 1,
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};
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static void dec_register_devices(void)
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{
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sysbus_register_dev("dec-21154", sizeof(DECState),
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pci_dec_21154_init_device);
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pci_qdev_register(&dec_21154_pci_host_info);
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}
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device_init(dec_register_devices)
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