279 lines
10 KiB
C
279 lines
10 KiB
C
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/*
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* Copyright (c) 2022 HPMicro
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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*/
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#include "usbd_core.h"
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#include "usbd_hid.h"
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/*!< hidraw in endpoint */
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#define HIDRAW_IN_EP 0x81
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#ifdef CONFIG_USB_HS
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#define HIDRAW_IN_EP_SIZE 1024
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#define HIDRAW_IN_INTERVAL 4
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#else
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#define HIDRAW_IN_EP_SIZE 64
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#define HIDRAW_IN_INTERVAL 10
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#endif
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/*!< hidraw out endpoint */
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#define HIDRAW_OUT_EP 0x02
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#ifdef CONFIG_USB_HS
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#define HIDRAW_OUT_EP_SIZE 1024
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#define HIDRAW_OUT_EP_INTERVAL 4
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#else
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#define HIDRAW_OUT_EP_SIZE 64
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#define HIDRAW_OUT_EP_INTERVAL 10
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#endif
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/*!< config descriptor size */
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#define USB_HID_CONFIG_DESC_SIZ (9 + 9 + 9 + 7 + 7)
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/*!< custom hid report descriptor size */
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#define HID_CUSTOM_REPORT_DESC_SIZE 38
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/*!< global descriptor */
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static const uint8_t hid_descriptor[] = {
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USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0002, 0x01),
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USB_CONFIG_DESCRIPTOR_INIT(USB_HID_CONFIG_DESC_SIZ, 0x01, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
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/************** Descriptor of Custom interface *****************/
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0x09, /* bLength: Interface Descriptor size */
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USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType: Interface descriptor type */
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0x00, /* bInterfaceNumber: Number of Interface */
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0x00, /* bAlternateSetting: Alternate setting */
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0x02, /* bNumEndpoints */
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0x03, /* bInterfaceClass: HID */
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0x01, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
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0x00, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
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0, /* iInterface: Index of string descriptor */
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/******************** Descriptor of Custom HID ********************/
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0x09, /* bLength: HID Descriptor size */
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HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
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0x11, /* bcdHID: HID Class Spec release number */
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0x01,
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0x00, /* bCountryCode: Hardware target country */
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0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
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0x22, /* bDescriptorType */
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HID_CUSTOM_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */
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0x00,
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/******************** Descriptor of Custom in endpoint ********************/
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0x07, /* bLength: Endpoint Descriptor size */
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USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType: */
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HIDRAW_IN_EP, /* bEndpointAddress: Endpoint Address (IN) */
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0x03, /* bmAttributes: Interrupt endpoint */
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WBVAL(HIDRAW_IN_EP_SIZE), /* wMaxPacketSize: 4 Byte max */
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HIDRAW_IN_INTERVAL, /* bInterval: Polling Interval */
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/******************** Descriptor of Custom out endpoint ********************/
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0x07, /* bLength: Endpoint Descriptor size */
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USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType: */
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HIDRAW_OUT_EP, /* bEndpointAddress: Endpoint Address (IN) */
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0x03, /* bmAttributes: Interrupt endpoint */
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WBVAL(HIDRAW_OUT_EP_SIZE), /* wMaxPacketSize: 4 Byte max */
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HIDRAW_OUT_EP_INTERVAL, /* bInterval: Polling Interval */
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/* 73 */
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/*
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* string0 descriptor
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*/
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USB_LANGID_INIT(USBD_LANGID_STRING),
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/*
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* string1 descriptor
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*/
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0x14, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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/*
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* string2 descriptor
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*/
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0x26, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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' ', 0x00, /* wcChar9 */
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'H', 0x00, /* wcChar10 */
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'I', 0x00, /* wcChar11 */
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'D', 0x00, /* wcChar12 */
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' ', 0x00, /* wcChar13 */
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'D', 0x00, /* wcChar14 */
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'E', 0x00, /* wcChar15 */
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'M', 0x00, /* wcChar16 */
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'O', 0x00, /* wcChar17 */
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/*
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* string3 descriptor
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*/
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0x16, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'2', 0x00, /* wcChar0 */
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'0', 0x00, /* wcChar1 */
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'2', 0x00, /* wcChar2 */
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'2', 0x00, /* wcChar3 */
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'1', 0x00, /* wcChar4 */
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'2', 0x00, /* wcChar5 */
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'3', 0x00, /* wcChar6 */
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'4', 0x00, /* wcChar7 */
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'5', 0x00, /* wcChar8 */
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'6', 0x00, /* wcChar9 */
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#ifdef CONFIG_USB_HS
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/*
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* device qualifier descriptor
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*/
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0x0a,
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USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
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0x00,
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0x02,
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0x00,
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0x00,
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0x00,
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0x40,
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0x01,
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0x00,
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#endif
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0x00
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};
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/*!< custom hid report descriptor */
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static const uint8_t hid_custom_report_desc[HID_CUSTOM_REPORT_DESC_SIZE] = {
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#ifdef CONFIG_USB_HS
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/* USER CODE BEGIN 0 */
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0x06, 0x00, 0xff, /* USAGE_PAGE (Vendor Defined Page 1) */
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0x09, 0x01, /* USAGE (Vendor Usage 1) */
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0xa1, 0x01, /* COLLECTION (Application) */
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0x85, 0x02, /* REPORT ID (0x02) */
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0x09, 0x02, /* USAGE (Vendor Usage 1) */
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0x15, 0x00, /* LOGICAL_MINIMUM (0) */
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0x25, 0xff, /*LOGICAL_MAXIMUM (255) */
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0x75, 0x08, /* REPORT_SIZE (8) */
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0x96, 0xff, 0x03, /* REPORT_COUNT (63) */
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0x81, 0x02, /* INPUT (Data,Var,Abs) */
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/* <___________________________________________________> */
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0x85, 0x01, /* REPORT ID (0x01) */
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0x09, 0x03, /* USAGE (Vendor Usage 1) */
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0x15, 0x00, /* LOGICAL_MINIMUM (0) */
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0x25, 0xff, /* LOGICAL_MAXIMUM (255) */
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0x75, 0x08, /* REPORT_SIZE (8) */
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0x96, 0xff, 0x03, /* REPORT_COUNT (63) */
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0x91, 0x02, /* OUTPUT (Data,Var,Abs) */
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/* USER CODE END 0 */
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0xC0 /* END_COLLECTION */
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#else
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/* USER CODE BEGIN 0 */
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0x06, 0x00, 0xff, /* USAGE_PAGE (Vendor Defined Page 1) */
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0x09, 0x01, /* USAGE (Vendor Usage 1) */
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0xa1, 0x01, /* COLLECTION (Application) */
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0x85, 0x02, /* REPORT ID (0x02) */
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0x09, 0x01, /* USAGE (Vendor Usage 1) */
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0x15, 0x00, /* LOGICAL_MINIMUM (0) */
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0x26, 0xff, 0x00, /* LOGICAL_MAXIMUM (255) */
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0x95, 0x40 - 1, /* REPORT_COUNT (63) */
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0x75, 0x08, /* REPORT_SIZE (8) */
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0x81, 0x02, /* INPUT (Data,Var,Abs) */
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/* <___________________________________________________> */
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0x85, 0x01, /* REPORT ID (0x01) */
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0x09, 0x01, /* USAGE (Vendor Usage 1) */
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0x15, 0x00, /* LOGICAL_MINIMUM (0) */
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0x26, 0xff, 0x00, /* LOGICAL_MAXIMUM (255) */
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0x95, 0x40 - 1, /* REPORT_COUNT (63) */
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0x75, 0x08, /* REPORT_SIZE (8) */
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0x91, 0x02, /* OUTPUT (Data,Var,Abs) */
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/* USER CODE END 0 */
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0xC0 /* END_COLLECTION */
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#endif
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};
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t read_buffer[HIDRAW_OUT_EP_SIZE];
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t send_buffer[HIDRAW_IN_EP_SIZE];
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#define HID_STATE_IDLE 0
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#define HID_STATE_BUSY 1
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/*!< hid state ! Data can be sent only when state is idle */
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static volatile uint8_t custom_state;
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static void usbd_event_handler(uint8_t busid, uint8_t event)
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{
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switch (event) {
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case USBD_EVENT_RESET:
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break;
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case USBD_EVENT_CONNECTED:
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break;
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case USBD_EVENT_DISCONNECTED:
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break;
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case USBD_EVENT_RESUME:
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break;
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case USBD_EVENT_SUSPEND:
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break;
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case USBD_EVENT_CONFIGURED:
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/* setup first out ep read transfer */
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usbd_ep_start_read(busid, HIDRAW_OUT_EP, read_buffer, HIDRAW_OUT_EP_SIZE);
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break;
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case USBD_EVENT_SET_REMOTE_WAKEUP:
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break;
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case USBD_EVENT_CLR_REMOTE_WAKEUP:
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break;
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default:
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break;
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}
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}
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static void usbd_hid_custom_in_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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(void)busid;
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(void)ep;
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USB_LOG_RAW("actual in len:%d\r\n", nbytes);
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custom_state = HID_STATE_IDLE;
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}
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static void usbd_hid_custom_out_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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USB_LOG_RAW("actual out len:%d\r\n", nbytes);
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usbd_ep_start_read(busid, ep, read_buffer, HIDRAW_IN_EP_SIZE);
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read_buffer[0] = 0x02; /* IN: report id */
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usbd_ep_start_write(busid, HIDRAW_IN_EP, read_buffer, nbytes);
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}
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static struct usbd_endpoint custom_in_ep = {
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.ep_cb = usbd_hid_custom_in_callback,
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.ep_addr = HIDRAW_IN_EP
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};
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static struct usbd_endpoint custom_out_ep = {
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.ep_cb = usbd_hid_custom_out_callback,
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.ep_addr = HIDRAW_OUT_EP
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};
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/* function ------------------------------------------------------------------*/
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/**
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* @brief hid custom init
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* @pre none
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* @param[in] none
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* @retval none
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*/
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struct usbd_interface intf0;
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void hid_custom_init(uint8_t busid, uint32_t reg_base)
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{
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usbd_desc_register(busid, hid_descriptor);
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usbd_add_interface(busid, usbd_hid_init_intf(busid, &intf0, hid_custom_report_desc, HID_CUSTOM_REPORT_DESC_SIZE));
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usbd_add_endpoint(busid, &custom_in_ep);
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usbd_add_endpoint(busid, &custom_out_ep);
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usbd_initialize(busid, reg_base, usbd_event_handler);
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}
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