/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-22 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/>.
*/

/** Bandit ARBus-to-PCI bridge definitions.

    The Bandit ASIC is a custom ARBus-to-PCI bridge used in the second
    generation of the Power Macintosh computer equipped with the PCI bus.
*/

#ifndef BANDIT_PCI_H
#define BANDIT_PCI_H

#include <devices/common/hwcomponent.h>
#include <devices/common/pci/pcidevice.h>
#include <devices/common/pci/pcihost.h>

#include <cinttypes>
#include <string>
#include <unordered_map>

#define BANDIT_DEV_NUM      (1 << 11)
#define BANDIT_CONFIG_SPACE 0x00800000

class Bandit : public MMIODevice, public PCIHost {//}, public PCIDevice {
public:
    Bandit(int bridge_num, std::string name);
    ~Bandit() = default;

    bool supports_type(HWCompType type) {
        return (type == HWCompType::PCI_HOST || type == HWCompType::PCI_DEV);
    };

    // MMIODevice methods
    uint32_t read(uint32_t reg_start, uint32_t offset, int size);
    void write(uint32_t reg_start, uint32_t offset, uint32_t value, int size);

protected:
    uint32_t pci_cfg_read(uint32_t reg_offs, uint32_t size);
    void pci_cfg_write(uint32_t reg_offs, uint32_t value, uint32_t size);

private:
    std::string name;
    uint32_t    base_addr;
    uint32_t    config_addr;

    uint8_t     my_pci_cfg_hdr[256];
    uint8_t     my_cfg_mask[256];
};

#endif // BANDIT_PCI_H