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107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
/**
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* @file usbd_hub.c
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* @brief
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*
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* Copyright (c) 2022 sakumisu
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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*/
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#include "usbd_core.h"
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#include "usbd_hub.h"
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static struct usb_hub_descriptor hub_desc = {
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.bLength = 0x09,
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.bDescriptorType = HUB_DESCRIPTOR_TYPE_HUB,
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.bNbrPorts = 4,
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.wHubCharacteristics = HUB_CHAR_PORTIND | HUB_CHAR_TTTT_32_BITS,
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.bPwrOn2PwrGood = 0x32,
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.bHubContrCurrent = 0x64,
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.DeviceRemovable = 0x00,
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.PortPwrCtrlMask = 0xff
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};
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static int hub_custom_request_handler(struct usb_setup_packet *setup, uint8_t **data, uint32_t *len)
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{
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USBD_LOG_DBG("HUB Class Custom request: "
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"bRequest 0x%02x\r\n",
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setup->bRequest);
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if (((setup->bmRequestType & USB_REQUEST_TYPE_MASK) == USB_REQUEST_CLASS) &&
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((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) == USB_REQUEST_RECIPIENT_DEVICE) &&
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(setup->bRequest == HUB_REQUEST_GET_DESCRIPTOR)) {
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uint8_t value = (uint8_t)(setup->wValue >> 8);
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uint8_t intf_num = (uint8_t)setup->wIndex;
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switch (value) {
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case HUB_DESCRIPTOR_TYPE_HUB:
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*data = (uint8_t *)&hub_desc;
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*len = hub_desc.bLength;
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break;
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default:
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return -1;
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}
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return 0;
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}
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else if (((setup->bmRequestType & USB_REQUEST_TYPE_MASK) == USB_REQUEST_CLASS) &&
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((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) == USB_REQUEST_RECIPIENT_OTHER)) {
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uint8_t hub_port_feature = (uint8_t)(setup->wValue);
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uint8_t hub_port = (uint8_t)setup->wIndex;
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switch (setup->bRequest) {
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case HUB_REQUEST_GET_STATUS:
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break;
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case HUB_REQUEST_CLEAR_FEATURE:
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break;
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case HUB_REQUEST_SET_FEATURE:
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break;
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default:
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USBD_LOG_WRN("Unhandled HUB Class Custom bRequest 0x%02x\r\n", setup->bRequest);
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return -1;
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}
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return 0;
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}
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return -1;
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}
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static void hub_notify_handler(uint8_t event, void *arg)
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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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default:
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break;
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}
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}
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void usbd_hub_add_interface(usbd_class_t *devclass, usbd_interface_t *intf)
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{
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static usbd_class_t *last_class = NULL;
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if (last_class != devclass) {
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last_class = devclass;
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usbd_class_register(devclass);
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}
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intf->class_handler = NULL;
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intf->custom_handler = hub_custom_request_handler;
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intf->vendor_handler = NULL;
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intf->notify_handler = hub_notify_handler;
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usbd_class_add_interface(devclass, intf);
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}
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