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Diffstat (limited to 'Kernel/Bus/USB/USBRequest.h')
| -rw-r--r-- | Kernel/Bus/USB/USBRequest.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Kernel/Bus/USB/USBRequest.h b/Kernel/Bus/USB/USBRequest.h new file mode 100644 index 0000000000..38f184de1f --- /dev/null +++ b/Kernel/Bus/USB/USBRequest.h @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2021, Jesse Buhagiar <jooster669@gmail.com> + * + * SPDX-License-Identifier: BSD-2-Clause + */ + +#pragma once + +#include <AK/Types.h> + +// +// USB Request directions +// +// As per Section 9.4 of the USB Specification, it is noted that Requeset Types that +// Device to Host have bit 7 of `bmRequestType` set. These are here as a convenience, +// as we construct the request at the call-site to make reading transfers easier. +// +static constexpr u8 USB_DEVICE_REQUEST_DEVICE_TO_HOST = 0x80; +static constexpr u8 USB_DEVICE_REQUEST_HOST_TO_DEVICE = 0x00; +static constexpr u8 USB_INTERFACE_REQUEST_DEVICE_TO_HOST = 0x81; +static constexpr u8 USB_INTERFACE_REQUEST_HOST_TO_DEVICE = 0x01; +static constexpr u8 USB_ENDPOINT_REQUEST_DEVICE_TO_HOST = 0x82; +static constexpr u8 USB_ENDPOINT_REQUEST_HOST_TO_DEVICE = 0x02; + +// +// Standard USB request types +// +// These are found in Section 9.4 of the USB Spec +// +static constexpr u8 USB_REQUEST_GET_STATUS = 0x00; +static constexpr u8 USB_REQUEST_CLEAR_FEATURE = 0x01; +static constexpr u8 USB_REQUEST_SET_FEATURE = 0x03; +static constexpr u8 USB_REQUEST_SET_ADDRESS = 0x05; +static constexpr u8 USB_REQUEST_GET_DESCRIPTOR = 0x06; +static constexpr u8 USB_REQUEST_SET_DESCRIPTOR = 0x07; +static constexpr u8 USB_REQUEST_GET_CONFIGURATION = 0x08; +static constexpr u8 USB_REQUEST_SET_CONFIGURATION = 0x09; |