mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-24 20:19:44 +00:00
f8eaef67a3
ACPI_PORT_SMI_CMD is alias for APM_CNT_IOPORT, so make it really one instead of duplicating its value. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
/*
|
|
* QEMU PC APM controller Emulation
|
|
* This is split out from acpi.c
|
|
*
|
|
* Copyright (c) 2006 Fabrice Bellard
|
|
*
|
|
* 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 "qemu/osdep.h"
|
|
#include "hw/isa/apm.h"
|
|
#include "hw/hw.h"
|
|
#include "hw/pci/pci.h"
|
|
|
|
//#define DEBUG
|
|
|
|
#ifdef DEBUG
|
|
# define APM_DPRINTF(format, ...) printf(format, ## __VA_ARGS__)
|
|
#else
|
|
# define APM_DPRINTF(format, ...) do { } while (0)
|
|
#endif
|
|
|
|
/* fixed I/O location */
|
|
#define APM_STS_IOPORT 0xb3
|
|
|
|
static void apm_ioport_writeb(void *opaque, hwaddr addr, uint64_t val,
|
|
unsigned size)
|
|
{
|
|
APMState *apm = opaque;
|
|
addr &= 1;
|
|
APM_DPRINTF("apm_ioport_writeb addr=0x%" HWADDR_PRIx
|
|
" val=0x%02" PRIx64 "\n", addr, val);
|
|
if (addr == 0) {
|
|
apm->apmc = val;
|
|
|
|
if (apm->callback) {
|
|
(apm->callback)(val, apm->arg);
|
|
}
|
|
} else {
|
|
apm->apms = val;
|
|
}
|
|
}
|
|
|
|
static uint64_t apm_ioport_readb(void *opaque, hwaddr addr, unsigned size)
|
|
{
|
|
APMState *apm = opaque;
|
|
uint32_t val;
|
|
|
|
addr &= 1;
|
|
if (addr == 0) {
|
|
val = apm->apmc;
|
|
} else {
|
|
val = apm->apms;
|
|
}
|
|
APM_DPRINTF("apm_ioport_readb addr=0x%" HWADDR_PRIx " val=0x%02x\n", addr, val);
|
|
return val;
|
|
}
|
|
|
|
const VMStateDescription vmstate_apm = {
|
|
.name = "APM State",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_UINT8(apmc, APMState),
|
|
VMSTATE_UINT8(apms, APMState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static const MemoryRegionOps apm_ops = {
|
|
.read = apm_ioport_readb,
|
|
.write = apm_ioport_writeb,
|
|
.impl = {
|
|
.min_access_size = 1,
|
|
.max_access_size = 1,
|
|
},
|
|
};
|
|
|
|
void apm_init(PCIDevice *dev, APMState *apm, apm_ctrl_changed_t callback,
|
|
void *arg)
|
|
{
|
|
apm->callback = callback;
|
|
apm->arg = arg;
|
|
|
|
/* ioport 0xb2, 0xb3 */
|
|
memory_region_init_io(&apm->io, OBJECT(dev), &apm_ops, apm, "apm-io", 2);
|
|
memory_region_add_subregion(pci_address_space_io(dev), APM_CNT_IOPORT,
|
|
&apm->io);
|
|
}
|