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/*
* 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_pci.h"
#include "sysbus.h"
#include "pci.h"
#include "pci_host.h"
#include "pci_bridge.h"
#include "pci_internals.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
typedef struct DECState {
SysBusDevice busdev;
PCIHostState host_state;
} DECState;
static int dec_map_irq(PCIDevice *pci_dev, int irq_num)
{
return irq_num;
}
static int dec_21154_initfn(PCIDevice *dev)
{
int rc;
rc = pci_bridge_initfn(dev);
if (rc < 0) {
return rc;
}
pci_config_set_vendor_id(dev->config, PCI_VENDOR_ID_DEC);
pci_config_set_device_id(dev->config, PCI_DEVICE_ID_DEC_21154);
return 0;
}
static PCIDeviceInfo dec_21154_pci_bridge_info = {
.qdev.name = "dec-21154-p2p-bridge",
.qdev.desc = "DEC 21154 PCI-PCI bridge",
.qdev.size = sizeof(PCIBridge),
.qdev.vmsd = &vmstate_pci_device,
.qdev.reset = pci_bridge_reset,
.init = dec_21154_initfn,
.exit = pci_bridge_exitfn,
.config_write = pci_bridge_write_config,
.is_bridge = 1,
};
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 = DO_UPCAST(PCIBridge, dev, 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_init_device(SysBusDevice *dev)
{
DECState *s;
int pci_mem_config, pci_mem_data;
s = FROM_SYSBUS(DECState, dev);
pci_mem_config = pci_host_conf_register_mmio(&s->host_state,
DEVICE_LITTLE_ENDIAN);
pci_mem_data = pci_host_data_register_mmio(&s->host_state,
DEVICE_LITTLE_ENDIAN);
sysbus_init_mmio(dev, 0x1000, pci_mem_config);
sysbus_init_mmio(dev, 0x1000, pci_mem_data);
return 0;
}
static int dec_21154_pci_host_init(PCIDevice *d)
{
/* PCI2PCI bridge same values as PearPC - check this */
pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC);
pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154);
pci_set_byte(d->config + PCI_REVISION_ID, 0x02);
pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI);
return 0;
}
static PCIDeviceInfo dec_21154_pci_host_info = {
.qdev.name = "dec-21154",
.qdev.size = sizeof(PCIDevice),
.init = dec_21154_pci_host_init,
.is_bridge = 1,
};
static void dec_register_devices(void)
{
sysbus_register_dev("dec-21154", sizeof(DECState),
pci_dec_21154_init_device);
pci_qdev_register(&dec_21154_pci_host_info);
pci_qdev_register(&dec_21154_pci_bridge_info);
}
device_init(dec_register_devices)
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