a5c828525e
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/*
|
|
* ACPI implementation
|
|
*
|
|
* Copyright (c) 2006 Fabrice Bellard
|
|
* Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
|
|
* VA Linux Systems Japan K.K.
|
|
* Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
|
|
*
|
|
* This is based on acpi.c, but heavily rewritten.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
* Contributions after 2012-01-13 are licensed under the terms of the
|
|
* GNU GPL, version 2 or (at your option) any later version.
|
|
*
|
|
*/
|
|
#include "hw/hw.h"
|
|
#include "hw/i386/pc.h"
|
|
#include "hw/i2c/pm_smbus.h"
|
|
#include "hw/pci/pci.h"
|
|
#include "sysemu/sysemu.h"
|
|
#include "hw/i2c/i2c.h"
|
|
#include "hw/i2c/smbus.h"
|
|
|
|
#include "hw/i386/ich9.h"
|
|
|
|
#define TYPE_ICH9_SMB_DEVICE "ICH9 SMB"
|
|
#define ICH9_SMB_DEVICE(obj) \
|
|
OBJECT_CHECK(ICH9SMBState, (obj), TYPE_ICH9_SMB_DEVICE)
|
|
|
|
typedef struct ICH9SMBState {
|
|
PCIDevice dev;
|
|
|
|
PMSMBus smb;
|
|
} ICH9SMBState;
|
|
|
|
static const VMStateDescription vmstate_ich9_smbus = {
|
|
.name = "ich9_smb",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.minimum_version_id_old = 1,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_PCI_DEVICE(dev, struct ICH9SMBState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static void ich9_smbus_write_config(PCIDevice *d, uint32_t address,
|
|
uint32_t val, int len)
|
|
{
|
|
ICH9SMBState *s = ICH9_SMB_DEVICE(d);
|
|
|
|
pci_default_write_config(d, address, val, len);
|
|
if (range_covers_byte(address, len, ICH9_SMB_HOSTC)) {
|
|
uint8_t hostc = s->dev.config[ICH9_SMB_HOSTC];
|
|
if ((hostc & ICH9_SMB_HOSTC_HST_EN) &&
|
|
!(hostc & ICH9_SMB_HOSTC_I2C_EN)) {
|
|
memory_region_set_enabled(&s->smb.io, true);
|
|
} else {
|
|
memory_region_set_enabled(&s->smb.io, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int ich9_smbus_initfn(PCIDevice *d)
|
|
{
|
|
ICH9SMBState *s = ICH9_SMB_DEVICE(d);
|
|
|
|
/* TODO? D31IP.SMIP in chipset configuration space */
|
|
pci_config_set_interrupt_pin(d->config, 0x01); /* interrupt pin 1 */
|
|
|
|
pci_set_byte(d->config + ICH9_SMB_HOSTC, 0);
|
|
/* TODO bar0, bar1: 64bit BAR support*/
|
|
|
|
pm_smbus_init(&d->qdev, &s->smb);
|
|
pci_register_bar(d, ICH9_SMB_SMB_BASE_BAR, PCI_BASE_ADDRESS_SPACE_IO,
|
|
&s->smb.io);
|
|
return 0;
|
|
}
|
|
|
|
static void ich9_smb_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
|
|
|
|
k->vendor_id = PCI_VENDOR_ID_INTEL;
|
|
k->device_id = PCI_DEVICE_ID_INTEL_ICH9_6;
|
|
k->revision = ICH9_A2_SMB_REVISION;
|
|
k->class_id = PCI_CLASS_SERIAL_SMBUS;
|
|
dc->vmsd = &vmstate_ich9_smbus;
|
|
dc->desc = "ICH9 SMBUS Bridge";
|
|
k->init = ich9_smbus_initfn;
|
|
k->config_write = ich9_smbus_write_config;
|
|
/*
|
|
* Reason: part of ICH9 southbridge, needs to be wired up by
|
|
* pc_q35_init()
|
|
*/
|
|
dc->cannot_instantiate_with_device_add_yet = true;
|
|
}
|
|
|
|
I2CBus *ich9_smb_init(PCIBus *bus, int devfn, uint32_t smb_io_base)
|
|
{
|
|
PCIDevice *d =
|
|
pci_create_simple_multifunction(bus, devfn, true, TYPE_ICH9_SMB_DEVICE);
|
|
ICH9SMBState *s = ICH9_SMB_DEVICE(d);
|
|
return s->smb.smbus;
|
|
}
|
|
|
|
static const TypeInfo ich9_smb_info = {
|
|
.name = TYPE_ICH9_SMB_DEVICE,
|
|
.parent = TYPE_PCI_DEVICE,
|
|
.instance_size = sizeof(ICH9SMBState),
|
|
.class_init = ich9_smb_class_init,
|
|
};
|
|
|
|
static void ich9_smb_register(void)
|
|
{
|
|
type_register_static(&ich9_smb_info);
|
|
}
|
|
|
|
type_init(ich9_smb_register);
|