dingusppc/devices/common/pci/dec21154.h

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-23 divingkatae and maximum
(theweirdo) spatium
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/** DEC 21154 PCI-to-PCI bridge definitions. */
#ifndef DEC_P2P_H
#define DEC_P2P_H
#include <devices/common/pci/pcibridge.h>
#include <cinttypes>
#include <string>
enum {
CHIP_CTRL = 0x40,
PSERR_EVENT_DIS = 0x64,
SEC_CLK_CTRL = 0x68,
};
class DecPciBridge : public PCIBridge {
public:
DecPciBridge(std::string name);
~DecPciBridge() = default;
static std::unique_ptr<HWComponent> create() {
return std::unique_ptr<DecPciBridge>(new DecPciBridge("DEC21154"));
}
// PCIDevice methods
uint32_t pci_cfg_read(uint32_t reg_offs, AccessDetails &details);
void pci_cfg_write(uint32_t reg_offs, uint32_t value, AccessDetails &details);
private:
uint8_t chip_ctrl = 0;
uint8_t diag_ctrl = 0;
uint16_t arb_ctrl = 0x0200;
uint8_t pserr_event_dis = 0;
uint8_t gpio_out_data = 0;
uint8_t gpio_out_en = 0;
uint8_t gpio_in_data = 0;
uint16_t sec_clock_ctrl = 0;
};
#endif // DEC_P2P_H