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/*
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/Bus/PCI/Device.h>
#include <Kernel/Bus/PCI/IDs.h>
#include <Kernel/Devices/CharacterDevice.h>
#include <Kernel/Devices/SerialDevice.h>
namespace Kernel {
class PCISerialDevice {
public:
static void detect();
static SerialDevice& the();
static bool is_available();
private:
struct BoardDefinition {
PCI::HardwareID device_id;
StringView name;
u32 port_count { 0 };
u32 pci_bar { 0 };
u32 first_offset { 0 };
u32 port_size { 0 };
SerialDevice::Baud baud_rate { SerialDevice::Baud::Baud38400 };
};
static constexpr BoardDefinition board_definitions[4] = {
{ { PCI::VendorID::WCH, 0x3253 }, "WCH CH382 2S"sv, 2, 0, 0xC0, 8, SerialDevice::Baud::Baud115200 },
{ { PCI::VendorID::RedHat, 0x0002 }, "QEMU PCI 16550A"sv, 1, 0, 0, 8, SerialDevice::Baud::Baud115200 },
{ { PCI::VendorID::RedHat, 0x0003 }, "QEMU PCI Dual-port 16550A"sv, 2, 0, 0, 8, SerialDevice::Baud::Baud115200 },
{ { PCI::VendorID::RedHat, 0x0004 }, "QEMU PCI Quad-port 16550A"sv, 4, 0, 0, 8, SerialDevice::Baud::Baud115200 }
};
};
}
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