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/*
* The MIT License (MIT)
*
* Copyright (c) 2020 Peter Lawrence
* Copyright (c) 2019 Ha Thach (tinyusb.org)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#ifndef _TUSB_NET_DEVICE_H_
#define _TUSB_NET_DEVICE_H_
#include "class/cdc/cdc.h"
/* declared here, NOT in usb_descriptors.c, so that the driver can intelligently ZLP as needed */
#define CFG_TUD_NET_ENDPOINT_SIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
/* Maximum Tranmission Unit (in bytes) of the network, including Ethernet header */
#ifndef CFG_TUD_NET_MTU
#define CFG_TUD_NET_MTU 1514
#endif
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// Application API
//--------------------------------------------------------------------+
// client must provide this: initialize any network state back to the beginning
void tud_network_init_cb(void);
// client must provide this: return false if the packet buffer was not accepted
bool tud_network_recv_cb(const uint8_t *src, uint16_t size);
// client must provide this: copy from network stack packet pointer to dst
uint16_t tud_network_xmit_cb(uint8_t *dst, void *ref, uint16_t arg);
// client must provide this: 48-bit MAC address
// TODO removed later since it is not part of tinyusb stack
extern const uint8_t tud_network_mac_address[6];
// indicate to network driver that client has finished with the packet provided to network_recv_cb()
void tud_network_recv_renew(void);
// poll network driver for its ability to accept another packet to transmit
bool tud_network_can_xmit(void);
// if network_can_xmit() returns true, network_xmit() can be called once
void tud_network_xmit(void *ref, uint16_t arg);
//--------------------------------------------------------------------+
// INTERNAL USBD-CLASS DRIVER API
//--------------------------------------------------------------------+
void netd_init (void);
void netd_reset (uint8_t rhport);
uint16_t netd_open (uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
bool netd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t const * request);
bool netd_xfer_cb (uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
void netd_report (uint8_t *buf, uint16_t len);
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_NET_DEVICE_H_ */
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