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https://github.com/SerenityOS/serenity
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3fae7ca113
Let's put the PCI IDs as enums in the PCI namespace so they're free to pollute that namespace, but it's also more easier to use them.
43 lines
1.2 KiB
C++
43 lines
1.2 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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AK_MAKE_ETERNAL
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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::ID 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[4] = {
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{ { PCI::VendorID::WCH, 0x3253 }, "WCH CH382 2S", 2, 0, 0xC0, 8, SerialDevice::Baud::Baud115200 },
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{ { PCI::VendorID::RedHat, 0x0002 }, "QEMU PCI 16550A", 1, 0, 0, 8, SerialDevice::Baud::Baud115200 },
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{ { PCI::VendorID::RedHat, 0x0003 }, "QEMU PCI Dual-port 16550A", 2, 0, 0, 8, SerialDevice::Baud::Baud115200 },
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{ { PCI::VendorID::RedHat, 0x0004 }, "QEMU PCI Quad-port 16550A", 4, 0, 0, 8, SerialDevice::Baud::Baud115200 }
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};
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};
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}
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