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Kernel/HID: Introduce initial USB mouse support

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Liav A 2023-05-05 09:05:04 +03:00 • committed by Jelle Raaijmakers
parent 430e987078
commit 77441079dd
6 changed files with 266 additions and 0 deletions
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55
Kernel/Devices/HID/USB/MouseDevice.cpp Normal file
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/*
* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Try.h>
#include <AK/TypedTransfer.h>
#include <Kernel/Bus/USB/Drivers/HID/Codes.h>
#include <Kernel/Bus/USB/USBController.h>
#include <Kernel/Bus/USB/USBDescriptors.h>
#include <Kernel/Bus/USB/USBRequest.h>
#include <Kernel/Bus/USB/USBTransfer.h>
#include <Kernel/Devices/DeviceManagement.h>
#include <Kernel/Devices/HID/USB/MouseDevice.h>
#include <Kernel/Library/KString.h>
namespace Kernel {
ErrorOr<NonnullRefPtr<USBMouseDevice>> USBMouseDevice::try_create_instance(USB::Device const& usb_device, size_t max_packet_size, NonnullOwnPtr<USB::InterruptInPipe> pipe)
{
if (max_packet_size < 4)
return Error::from_errno(ENOTSUP);
auto device = TRY(DeviceManagement::try_create_device<USBMouseDevice>(usb_device, move(pipe)));
TRY(device->create_and_start_polling_process(max_packet_size));
return *device;
}
ErrorOr<void> USBMouseDevice::create_and_start_polling_process(size_t max_packet_size)
{
VERIFY(max_packet_size >= 4);
[[maybe_unused]] auto interrupt_in_transfer = TRY(m_interrupt_in_pipe->submit_interrupt_in_transfer(max_packet_size, 10, [this](auto* transfer) {
USB::HID::MouseBootProtocolPacket packet_raw;
memcpy(&packet_raw, transfer->buffer().as_ptr(), 4);
MousePacket packet;
packet.buttons = packet_raw.buttons & 0x07;
packet.x = packet_raw.x;
packet.y = -packet_raw.y;
packet.z = -packet_raw.z;
packet.w = 0;
packet.is_relative = true;
handle_mouse_packet_input_event(packet);
}));
return {};
}
USBMouseDevice::USBMouseDevice(USB::Device const& usb_device, NonnullOwnPtr<USB::InterruptInPipe> pipe)
: MouseDevice()
, m_interrupt_in_pipe(move(pipe))
, m_attached_usb_device(usb_device)
{
}
}