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/*
* Copyright (c) 2018 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#define LOG_LEVEL CONFIG_USB_DEVICE_LOG_LEVEL
#include <logging/log.h>
LOG_MODULE_REGISTER(usb_os_desc);
#include <zephyr.h>
#include <usb/usb_device.h>
#include <os_desc.h>
static struct usb_os_descriptor *os_desc;
int usb_handle_os_desc(struct usb_setup_packet *setup,
s32_t *len, u8_t **data)
{
LOG_DBG("wValue 0x%x", setup->wValue);
if (!os_desc) {
return -ENOTSUP;
}
if (GET_DESC_TYPE(setup->wValue) == DESC_STRING &&
GET_DESC_INDEX(setup->wValue) == USB_OSDESC_STRING_DESC_INDEX) {
LOG_DBG("MS OS Descriptor string read");
*data = os_desc->string;
*len = os_desc->string_len;
return 0;
}
return -ENOTSUP;
}
int usb_handle_os_desc_feature(struct usb_setup_packet *setup,
s32_t *len, u8_t **data)
{
LOG_DBG("bRequest 0x%x", setup->bRequest);
if (!os_desc) {
return -ENOTSUP;
}
if (setup->bRequest == os_desc->vendor_code) {
switch (setup->wIndex) {
case USB_OSDESC_EXTENDED_COMPAT_ID:
LOG_DBG("Handle Compat ID");
*data = os_desc->compat_id;
*len = os_desc->compat_id_len;
return 0;
default:
break;
}
}
return -ENOTSUP;
}
/* Register MS OS Descriptors version 1 */
void usb_register_os_desc(struct usb_os_descriptor *desc)
{
os_desc = desc;
}
bool usb_os_desc_enabled(void)
{
return !!os_desc;
}
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