usb: hid: Add Human Interface Device (HID) class (e8ccb169) · Commits · Wenxi XU / zephyr

include/usb/class/usb_hid.h

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		/*
		* Human Interface Device (HID) USB class core header
		*
		* Copyright (c) 2018 Intel Corporation
		*
		* SPDX-License-Identifier: Apache-2.0
		*/

		/**
		* @file
		* @brief USB Human Interface Device (HID) Class public header
		*
		* Header follows Device Class Definition for Human Interface Devices (HID)
		* Version 1.11 document (HID1_11-1.pdf).
		*/

		#ifndef __USB_HID_H__
		#define __USB_HID_H__

		struct usb_hid_class_subdescriptor {
		u8_t bDescriptorType;
		u16_t wDescriptorLength;
		} __packed;

		struct usb_hid_descriptor {
		u8_t bLength;
		u8_t bDescriptorType;
		u16_t bcdHID;
		u8_t bCountryCode;
		u8_t bNumDescriptors;

		/*
		* Specification says at least one Class Descriptor needs to
		* be present (Report Descriptor).
		*/
		struct usb_hid_class_subdescriptor subdesc[1];
		} __packed;

		/* HID Class Specific Requests */

		#define HID_GET_REPORT 0x01
		#define HID_GET_IDLE 0x02
		#define HID_GET_PROTOCOL 0x03
		#define HID_SET_REPORT 0x09
		#define HID_SET_IDLE 0x0A
		#define HID_SET_PROTOCOL 0x0B

		/* Public headers */

		struct hid_ops {
		int (get_report)(struct usb_setup_packet setup, s32_t *len,
		u8_t **data);
		int (get_idle)(struct usb_setup_packet setup, s32_t *len,
		u8_t **data);
		int (get_protocol)(struct usb_setup_packet setup, s32_t *len,
		u8_t **data);
		int (set_report)(struct usb_setup_packet setup, s32_t *len,
		u8_t **data);
		int (set_idle)(struct usb_setup_packet setup, s32_t *len,
		u8_t **data);
		int (set_protocol)(struct usb_setup_packet setup, s32_t *len,
		u8_t **data);
		};

		/* Register HID device */
		void usb_hid_register_device(const u8_t desc, size_t size, struct hid_ops op);

		/* Initialize USB HID */
		int usb_hid_init(void);

		#endif /* __USB_HID_H__ */

subsys/usb/class/CMakeLists.txt

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		@@ -2,3 +2,4 @@ zephyr_sources_ifdef(CONFIG_USB_CDC_ACM cdc_acm.c)
		zephyr_sources_ifdef(CONFIG_USB_MASS_STORAGE mass_storage.c)

		add_subdirectory_ifdef(CONFIG_USB_DEVICE_NETWORK netusb)
		add_subdirectory_ifdef(CONFIG_USB_DEVICE_HID hid)

subsys/usb/class/Kconfig

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		@@ -134,4 +134,6 @@ config SYS_LOG_USB_MASS_STORAGE_LEVEL

		source "subsys/usb/class/netusb/Kconfig"

		source "subsys/usb/class/hid/Kconfig"

		endif # CONFIG_USB_DEVICE_STACK

subsys/usb/class/hid/CMakeLists.txt

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		zephyr_library()

		zephyr_library_include_directories(
		# USB headers
		#${ZEPHYR_BASE}/include/drivers/usb
		${ZEPHYR_BASE}/include/usb
		${ZEPHYR_BASE}/subsys/usb
		)

		zephyr_library_sources(
		core.c
		)

subsys/usb/class/hid/Kconfig

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		# Kconfig - USB HID configuration options

		#
		# Copyright (c) 2018 Intel Corp.
		#
		# SPDX-License-Identifier: Apache-2.0
		#

		config USB_DEVICE_HID
		bool
		prompt "USB Human Interface Device support"
		default n
		help
		Enables USB Human Interface Device support.

		if USB_DEVICE_HID

		config HID_INT_EP_ADDR
		hex
		prompt "USB HID Device Interrupt Endpoint address"
		default 0x81
		range 0x81 0x8F
		help
		USB HID Device interrupt endpoint address

		config HID_INTERRUPT_EP_MPS
		int
		default 16
		help
		USB HID Device interrupt endpoint size

		endif # USB_DEVICE_HID

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