mirror of
https://github.com/retro100/dosbox-wii.git
synced 2024-11-04 17:35:10 +01:00
87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/*
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* Copyright (C) 2002-2019 The DOSBox Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef DOSBOX_PCI_H
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#define DOSBOX_PCI_H
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//#define PCI_FUNCTIONALITY_ENABLED 0
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#if defined PCI_FUNCTIONALITY_ENABLED
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#define PCI_MAX_PCIDEVICES 10
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#define PCI_MAX_PCIFUNCTIONS 8
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class PCI_Device {
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private:
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Bits pci_id, pci_subfunction;
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Bit16u vendor_id, device_id;
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// subdevices declarations, they will respond to pci functions 1 to 7
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// (main device is attached to function 0)
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Bitu num_subdevices;
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PCI_Device* subdevices[PCI_MAX_PCIFUNCTIONS-1];
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public:
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PCI_Device(Bit16u vendor, Bit16u device);
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Bits PCIId(void) {
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return pci_id;
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}
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Bits PCISubfunction(void) {
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return pci_subfunction;
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}
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Bit16u VendorID(void) {
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return vendor_id;
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}
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Bit16u DeviceID(void) {
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return device_id;
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}
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void SetPCIId(Bitu number, Bits subfct);
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bool AddSubdevice(PCI_Device* dev);
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void RemoveSubdevice(Bits subfct);
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PCI_Device* GetSubdevice(Bits subfct);
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Bit16u NumSubdevices(void) {
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if (num_subdevices>PCI_MAX_PCIFUNCTIONS-1) return (Bit16u)(PCI_MAX_PCIFUNCTIONS-1);
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return (Bit16u)num_subdevices;
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}
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Bits GetNextSubdeviceNumber(void) {
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if (num_subdevices>=PCI_MAX_PCIFUNCTIONS-1) return -1;
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return (Bits)num_subdevices+1;
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}
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virtual Bits ParseReadRegister(Bit8u regnum)=0;
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virtual bool OverrideReadRegister(Bit8u regnum, Bit8u* rval, Bit8u* rval_mask)=0;
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virtual Bits ParseWriteRegister(Bit8u regnum,Bit8u value)=0;
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virtual bool InitializeRegisters(Bit8u registers[256])=0;
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};
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bool PCI_IsInitialized();
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RealPt PCI_GetPModeInterface(void);
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#endif
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#endif
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