xref: /openbmc/qemu/include/hw/acpi/ich9.h (revision 2993683b)
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 
26 typedef struct ICH9LPCPMRegs {
27     /*
28      * In ich9 spec says that pm1_cnt register is 32bit width and
29      * that the upper 16bits are reserved and unused.
30      * PM1a_CNT_BLK = 2 in FADT so it is defined as uint16_t.
31      */
32     ACPIREGS acpi_regs;
33 
34     MemoryRegion io;
35     MemoryRegion io_gpe;
36     MemoryRegion io_smi;
37 
38     uint32_t smi_en;
39     uint32_t smi_sts;
40 
41     qemu_irq irq;      /* SCI */
42 
43     uint32_t pm_io_base;
44     Notifier powerdown_notifier;
45 } ICH9LPCPMRegs;
46 
47 void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
48                   qemu_irq sci_irq);
49 void ich9_pm_iospace_update(ICH9LPCPMRegs *pm, uint32_t pm_io_base);
50 extern const VMStateDescription vmstate_ich9_pm;
51 
52 #endif /* HW_ACPI_ICH9_H */
53