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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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83
Kernel/Bus/USB/Drivers/HID/MouseDriver.cpp Normal file
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/*
* Copyright (c) 2023, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Find.h>
#include <Kernel/Bus/USB/Drivers/HID/Codes.h>
#include <Kernel/Bus/USB/Drivers/HID/MouseDriver.h>
#include <Kernel/Bus/USB/USBClasses.h>
#include <Kernel/Bus/USB/USBEndpoint.h>
#include <Kernel/Bus/USB/USBRequest.h>
#include <Kernel/Devices/DeviceManagement.h>
#include <Kernel/Devices/HID/Management.h>
namespace Kernel::USB {
USB_DEVICE_DRIVER(MouseDriver);
void MouseDriver::init()
{
auto driver = MUST(adopt_nonnull_lock_ref_or_enomem(new MouseDriver()));
USBManagement::the().register_driver(driver);
}
ErrorOr<void> MouseDriver::checkout_interface(USB::Device& device, USBInterface const& interface)
{
auto const& descriptor = interface.descriptor();
if (descriptor.interface_class_code == USB_CLASS_HID
&& descriptor.interface_sub_class_code == to_underlying(HID::SubclassCode::BootProtocol)
&& descriptor.interface_protocol == to_underlying(HID::InterfaceProtocol::Mouse)) {
dmesgln("USB HID Mouse Interface for device {:#04x}:{:#04x} found", device.device_descriptor().vendor_id, device.device_descriptor().product_id);
return initialize_device(device, interface);
}
return ENOTSUP;
}
ErrorOr<void> MouseDriver::probe(USB::Device& device)
{
if (device.device_descriptor().device_class != USB_CLASS_DEVICE
|| device.device_descriptor().device_sub_class != 0x00
|| device.device_descriptor().device_protocol != 0x00)
return ENOTSUP;
// FIXME: Are we guaranteed to have one USB configuration for a mouse device?
if (device.configurations().size() != 1)
return ENOTSUP;
// FIXME: If we have multiple USB configurations for a mouse device, find the appropriate one
// and handle multiple interfaces for it.
if (device.configurations()[0].interfaces().size() != 1)
return ENOTSUP;
TRY(checkout_interface(device, device.configurations()[0].interfaces()[0]));
return ENOTSUP;
}
ErrorOr<void> MouseDriver::initialize_device(USB::Device& device, USBInterface const& interface)
{
if (interface.endpoints().size() != 1)
return ENOTSUP;
auto const& configuration = interface.configuration();
// FIXME: Should we check other configurations?
TRY(device.control_transfer(
USB_REQUEST_RECIPIENT_DEVICE | USB_REQUEST_TYPE_STANDARD | USB_REQUEST_TRANSFER_DIRECTION_HOST_TO_DEVICE,
USB_REQUEST_SET_CONFIGURATION, configuration.configuration_id(), 0, 0, nullptr));
auto const& endpoint_descriptor = interface.endpoints()[0];
auto interrupt_in_pipe = TRY(USB::InterruptInPipe::create(device.controller(), endpoint_descriptor.endpoint_address, endpoint_descriptor.max_packet_size, device.address(), 10));
auto mouse_device = TRY(USBMouseDevice::try_create_instance(device, endpoint_descriptor.max_packet_size, move(interrupt_in_pipe)));
HIDManagement::the().attach_standalone_hid_device(*mouse_device);
m_interfaces.append(mouse_device);
return {};
}
void MouseDriver::detach(USB::Device& device)
{
auto&& mouse_device = AK::find_if(m_interfaces.begin(), m_interfaces.end(), [&device](auto& interface) { return &interface.device() == &device; });
HIDManagement::the().detach_standalone_hid_device(*mouse_device);
m_interfaces.remove(*mouse_device);
}
}