mirror of
https://github.com/dingusdev/dingusppc.git
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56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-20 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef PCI_DEVICE_H
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#define PCI_DEVICE_H
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#include <cinttypes>
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#include <string>
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#include "mmiodevice.h"
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#include "pcihost.h"
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/* convert little-endian DWORD to big-endian DWORD */
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#define LE2BE(x) (x >> 24) | ((x & 0x00FF0000) >> 8) | ((x & 0x0000FF00) << 8) | (x << 24)
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enum {
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CFG_REG_BAR0 = 0x10 // base address register 0
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};
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class PCIDevice : public MMIODevice {
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public:
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PCIDevice(std::string name) { this->pci_name = name; };
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virtual ~PCIDevice() = default;
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/* configuration space access methods */
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virtual uint32_t pci_cfg_read(uint32_t reg_offs, uint32_t size) = 0;
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virtual void pci_cfg_write(uint32_t reg_offs, uint32_t value, uint32_t size) = 0;
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virtual void set_host(PCIHost *host_instance) = 0;
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protected:
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std::string pci_name; // human-readable device name
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PCIHost *host_instance; // host bridge instance to call back
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uint32_t base_addr; // base address register 0
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};
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#endif /* PCI_DEVICE_H */
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