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/*
* Copyright (c) 2026, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usbd_core.h"
#include "usbd_gs_usb.h"
static int gs_usb_vendor_class_request_handler(uint8_t busid, struct usb_setup_packet *setup, uint8_t **data, uint32_t *len)
{
USB_LOG_DBG("GS USB Class request: "
"bRequest 0x%02x\r\n",
setup->bRequest);
uint16_t can_channel = setup->wValue;
switch (setup->bRequest) {
case GS_USB_BREQ_BT_CONST:
*len = sizeof(struct gs_device_bt_const);
return usbd_gs_usb_can_get(can_channel, setup->bRequest, *data, *len);
case GS_USB_BREQ_DEVICE_CONFIG:
*len = sizeof(struct gs_device_config);
return usbd_gs_usb_can_get(can_channel, setup->bRequest, *data, *len);
case GS_USB_BREQ_TIMESTAMP:
*len = sizeof(uint32_t);
return usbd_gs_usb_can_get(can_channel, setup->bRequest, *data, *len);
case GS_USB_BREQ_BT_CONST_EXT:
*len = sizeof(struct gs_device_bt_const_extended);
return usbd_gs_usb_can_get(can_channel, setup->bRequest, *data, *len);
case GS_USB_BREQ_GET_TERMINATION:
*len = sizeof(struct gs_device_termination_state);
return usbd_gs_usb_can_get(can_channel, setup->bRequest, *data, *len);
case GS_USB_BREQ_GET_STATE:
*len = sizeof(struct gs_device_state);
return usbd_gs_usb_can_get(can_channel, setup->bRequest, *data, *len);
case GS_USB_BREQ_HOST_FORMAT:
case GS_USB_BREQ_BITTIMING:
case GS_USB_BREQ_MODE:
case GS_USB_BREQ_IDENTIFY:
case GS_USB_BREQ_DATA_BITTIMING:
case GS_USB_BREQ_SET_TERMINATION:
return usbd_gs_usb_can_set(can_channel, setup->bRequest, *data, *len);
default:
return -1;
}
return 0;
}
struct usbd_interface *usbd_gs_usb_init_intf(struct usbd_interface *intf)
{
intf->class_interface_handler = NULL;
intf->class_endpoint_handler = NULL;
intf->vendor_handler = gs_usb_vendor_class_request_handler;
intf->notify_handler = NULL;
return intf;
}
__WEAK int usbd_gs_usb_can_get(uint16_t can_channel, uint8_t bRequest, uint8_t *data, uint32_t len)
{
(void)can_channel;
(void)bRequest;
(void)data;
(void)len;
switch (bRequest) {
case GS_USB_BREQ_BT_CONST:
break;
case GS_USB_BREQ_DEVICE_CONFIG:
break;
case GS_USB_BREQ_TIMESTAMP:
break;
case GS_USB_BREQ_BT_CONST_EXT:
break;
case GS_USB_BREQ_GET_TERMINATION:
break;
case GS_USB_BREQ_GET_STATE:
break;
default:
break;
}
return 0;
}
__WEAK int usbd_gs_usb_can_set(uint16_t can_channel, uint8_t bRequest, uint8_t *data, uint32_t len)
{
(void)can_channel;
(void)bRequest;
(void)data;
(void)len;
switch (bRequest) {
case GS_USB_BREQ_HOST_FORMAT:
break;
case GS_USB_BREQ_BITTIMING:
break;
case GS_USB_BREQ_MODE:
break;
case GS_USB_BREQ_IDENTIFY:
break;
case GS_USB_BREQ_DATA_BITTIMING:
break;
case GS_USB_BREQ_SET_TERMINATION:
break;
default:
break;
}
return 0;
}
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