xref: /qemu/include/hw/acpi/ich9.h (revision 16bcab97eb9fc2d5f15e5c9ff6369f9d1d120b49) !
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 #include "hw/acpi/tco.h"
29 
30 typedef struct ICH9LPCPMRegs {
31     /*
32      * In ich9 spec says that pm1_cnt register is 32bit width and
33      * that the upper 16bits are reserved and unused.
34      * PM1a_CNT_BLK = 2 in FADT so it is defined as uint16_t.
35      */
36     ACPIREGS acpi_regs;
37 
38     MemoryRegion io;
39     MemoryRegion io_gpe;
40     MemoryRegion io_smi;
41 
42     uint32_t smi_en;
43     uint32_t smi_en_wmask;
44     uint32_t smi_sts;
45 
46     qemu_irq irq;      /* SCI */
47 
48     uint32_t pm_io_base;
49     Notifier powerdown_notifier;
50 
51     bool cpu_hotplug_legacy;
52     AcpiCpuHotplug gpe_cpu;
53 
54     MemHotplugState acpi_memory_hotplug;
55 
56     uint8_t disable_s3;
57     uint8_t disable_s4;
58     uint8_t s4_val;
59     uint8_t smm_enabled;
60     bool enable_tco;
61     TCOIORegs tco_regs;
62 } ICH9LPCPMRegs;
63 
64 void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
65                   bool smm_enabled,
66                   qemu_irq sci_irq);
67 
68 void ich9_pm_iospace_update(ICH9LPCPMRegs *pm, uint32_t pm_io_base);
69 extern const VMStateDescription vmstate_ich9_pm;
70 
71 void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp);
72 
73 void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
74                             Error **errp);
75 void ich9_pm_device_unplug_request_cb(HotplugHandler *hotplug_dev,
76                                       DeviceState *dev, Error **errp);
77 void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
78                               Error **errp);
79 
80 void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list);
81 #endif /* HW_ACPI_ICH9_H */
82