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