/*
 * Copyright (c) 2021 Travis Geiselbrecht
 *
 * Use of this source code is governed by a MIT-style
 * license that can be found in the LICENSE file or at
 * https://opensource.org/licenses/MIT
 */
#pragma once

#include "pci_backend.h"

class pci_type1 final : public pci_backend {
#if ARCH_X86
public:
    virtual ~pci_type1() = default;

    // factory to detect and create an instance
    static pci_type1 *detect();

    // a few overridden methods
    int read_config_byte(const pci_location_t *state, uint32_t reg, uint8_t *value) override;
    int read_config_half(const pci_location_t *state, uint32_t reg, uint16_t *value) override;
    int read_config_word(const pci_location_t *state, uint32_t reg, uint32_t *value) override;

private:
    // only created via the detect() factory
    pci_type1() = default;
#else // !ARCH_X86
public:
    // non x86s dont support this mechanism
    static pci_type1 *detect() { return nullptr; }
#endif
};