xref: /openbmc/qemu/include/hw/acpi/ich9.h (revision 21f5826a)
1 /*
2  * QEMU GMCH/ICH9 LPC PM Emulation
3  *
4  *  Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
5  *                     VA Linux Systems Japan K.K.
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, see <http://www.gnu.org/licenses/>
19  */
20 
21 #ifndef HW_ACPI_ICH9_H
22 #define HW_ACPI_ICH9_H
23 
24 #include "hw/acpi/acpi.h"
25 #include "hw/acpi/cpu_hotplug.h"
26 #include "hw/acpi/memory_hotplug.h"
27 #include "hw/acpi/acpi_dev_interface.h"
28 
29 typedef struct ICH9LPCPMRegs {
30     /*
31      * In ich9 spec says that pm1_cnt register is 32bit width and
32      * that the upper 16bits are reserved and unused.
33      * PM1a_CNT_BLK = 2 in FADT so it is defined as uint16_t.
34      */
35     ACPIREGS acpi_regs;
36 
37     MemoryRegion io;
38     MemoryRegion io_gpe;
39     MemoryRegion io_smi;
40 
41     uint32_t smi_en;
42     uint32_t smi_sts;
43 
44     qemu_irq irq;      /* SCI */
45 
46     uint32_t pm_io_base;
47     Notifier powerdown_notifier;
48 
49     AcpiCpuHotplug gpe_cpu;
50 
51     MemHotplugState acpi_memory_hotplug;
52 
53     uint8_t disable_s3;
54     uint8_t disable_s4;
55     uint8_t s4_val;
56 } ICH9LPCPMRegs;
57 
58 void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
59                   qemu_irq sci_irq);
60 void ich9_pm_iospace_update(ICH9LPCPMRegs *pm, uint32_t pm_io_base);
61 extern const VMStateDescription vmstate_ich9_pm;
62 
63 void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp);
64 
65 void ich9_pm_device_plug_cb(ICH9LPCPMRegs *pm, DeviceState *dev, Error **errp);
66 
67 void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list);
68 #endif /* HW_ACPI_ICH9_H */
69