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https://github.com/SerenityOS/serenity
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637c74ac93
Add the device ID for PCI serial port cards that use the WCH CH351 chip. This device has been tested with real hardware where the serial debug output could succesfully be received.
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
/*
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* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <Kernel/Bus/PCI/Device.h>
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#include <Kernel/Bus/PCI/IDs.h>
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#include <Kernel/Devices/CharacterDevice.h>
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#include <Kernel/Devices/SerialDevice.h>
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namespace Kernel {
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class PCISerialDevice {
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public:
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static void detect();
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static SerialDevice& the();
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static bool is_available();
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private:
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struct BoardDefinition {
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PCI::HardwareID device_id;
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StringView name;
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u32 port_count { 0 };
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u32 pci_bar { 0 };
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u32 first_offset { 0 };
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u32 port_size { 0 };
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SerialDevice::Baud baud_rate { SerialDevice::Baud::Baud38400 };
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};
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static constexpr BoardDefinition board_definitions[] = {
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{ { PCI::VendorID::RedHat, 0x0002 }, "QEMU PCI 16550A"sv, 1, 0, 0, 8, SerialDevice::Baud::Baud115200 },
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{ { PCI::VendorID::RedHat, 0x0003 }, "QEMU PCI Dual-port 16550A"sv, 2, 0, 0, 8, SerialDevice::Baud::Baud115200 },
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{ { PCI::VendorID::RedHat, 0x0004 }, "QEMU PCI Quad-port 16550A"sv, 4, 0, 0, 8, SerialDevice::Baud::Baud115200 },
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{ { PCI::VendorID::WCH, 0x2273 }, "WCH CH351"sv, 2, 0, 0, 8, SerialDevice::Baud::Baud115200 },
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{ { PCI::VendorID::WCH, 0x3253 }, "WCH CH382 2S"sv, 2, 0, 0xC0, 8, SerialDevice::Baud::Baud115200 }
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};
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};
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}
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