mcimx6ul_eth1_driver.h

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/**
 * @file mcimx6ul_eth1_driver.h
 * @brief NXP i.MX6UL Ethernet MAC driver (ENET1 instance)
 *
 * @section License
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * Copyright (C) 2010-2025 Oryx Embedded SARL. All rights reserved.
 *
 * This file is part of CycloneTCP Open.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * @author Oryx Embedded SARL (www.oryx-embedded.com)
 * @version 2.5.4
 **/
 
#ifndef _MCIMX6UL_ETH1_DRIVER_H
#define _MCIMX6UL_ETH1_DRIVER_H
 
//Dependencies
#include "core/nic.h"
 
//Number of TX buffers
#ifndef MCIMX6UL_ETH1_TX_BUFFER_COUNT
   #define MCIMX6UL_ETH1_TX_BUFFER_COUNT 8
#elif (MCIMX6UL_ETH1_TX_BUFFER_COUNT < 1)
   #error MCIMX6UL_ETH1_TX_BUFFER_COUNT parameter is not valid
#endif
 
//TX buffer size
#ifndef MCIMX6UL_ETH1_TX_BUFFER_SIZE
   #define MCIMX6UL_ETH1_TX_BUFFER_SIZE 1536
#elif (MCIMX6UL_ETH1_TX_BUFFER_SIZE != 1536)
   #error MCIMX6UL_ETH1_TX_BUFFER_SIZE parameter is not valid
#endif
 
//Number of RX buffers
#ifndef MCIMX6UL_ETH1_RX_BUFFER_COUNT
   #define MCIMX6UL_ETH1_RX_BUFFER_COUNT 8
#elif (MCIMX6UL_ETH1_RX_BUFFER_COUNT < 1)
   #error MCIMX6UL_ETH1_RX_BUFFER_COUNT parameter is not valid
#endif
 
//RX buffer size
#ifndef MCIMX6UL_ETH1_RX_BUFFER_SIZE
   #define MCIMX6UL_ETH1_RX_BUFFER_SIZE 1536
#elif (MCIMX6UL_ETH1_RX_BUFFER_SIZE != 1536)
   #error MCIMX6UL_ETH1_RX_BUFFER_SIZE parameter is not valid
#endif
 
//Ethernet interrupt priority
#ifndef MCIMX6UL_ETH1_IRQ_PRIORITY
   #define MCIMX6UL_ETH1_IRQ_PRIORITY 21
#elif (MCIMX6UL_ETH1_IRQ_PRIORITY < 0)
   #error MCIMX6UL_ETH1_IRQ_PRIORITY parameter is not valid
#endif
 
//Name of the section where to place DMA buffers
#ifndef MCIMX6UL_ETH1_RAM_SECTION
   #define MCIMX6UL_ETH1_RAM_SECTION "NonCacheable"
#endif
 
//Enhanced transmit buffer descriptor
#define ENET_TBD0_R                0x80000000
#define ENET_TBD0_TO1              0x40000000
#define ENET_TBD0_W                0x20000000
#define ENET_TBD0_TO2              0x10000000
#define ENET_TBD0_L                0x08000000
#define ENET_TBD0_TC               0x04000000
#define ENET_TBD0_DATA_LENGTH      0x0000FFFF
#define ENET_TBD1_DATA_POINTER     0xFFFFFFFF
#define ENET_TBD2_INT              0x40000000
#define ENET_TBD2_TS               0x20000000
#define ENET_TBD2_PINS             0x10000000
#define ENET_TBD2_IINS             0x08000000
#define ENET_TBD2_TXE              0x00008000
#define ENET_TBD2_UE               0x00002000
#define ENET_TBD2_EE               0x00001000
#define ENET_TBD2_FE               0x00000800
#define ENET_TBD2_LCE              0x00000400
#define ENET_TBD2_OE               0x00000200
#define ENET_TBD2_TSE              0x00000100
#define ENET_TBD4_BDU              0x80000000
#define ENET_TBD5_TIMESTAMP        0xFFFFFFFF
 
//Enhanced receive buffer descriptor
#define ENET_RBD0_E                0x80000000
#define ENET_RBD0_RO1              0x40000000
#define ENET_RBD0_W                0x20000000
#define ENET_RBD0_RO2              0x10000000
#define ENET_RBD0_L                0x08000000
#define ENET_RBD0_M                0x01000000
#define ENET_RBD0_BC               0x00800000
#define ENET_RBD0_MC               0x00400000
#define ENET_RBD0_LG               0x00200000
#define ENET_RBD0_NO               0x00100000
#define ENET_RBD0_CR               0x00040000
#define ENET_RBD0_OV               0x00020000
#define ENET_RBD0_TR               0x00010000
#define ENET_RBD0_DATA_LENGTH      0x0000FFFF
#define ENET_RBD1_DATA_POINTER     0xFFFFFFFF
#define ENET_RBD2_ME               0x80000000
#define ENET_RBD2_PE               0x04000000
#define ENET_RBD2_CE               0x02000000
#define ENET_RBD2_UC               0x01000000
#define ENET_RBD2_INT              0x00800000
#define ENET_RBD2_VPCP             0x0000E000
#define ENET_RBD2_ICE              0x00000020
#define ENET_RBD2_PCR              0x00000010
#define ENET_RBD2_VLAN             0x00000004
#define ENET_RBD2_IPV6             0x00000002
#define ENET_RBD2_FRAG             0x00000001
#define ENET_RBD3_HEADER_LENGTH    0xF8000000
#define ENET_RBD3_PROTOCOL_TYPE    0x00FF0000
#define ENET_RBD3_PAYLOAD_CHECKSUM 0x0000FFFF
#define ENET_RBD4_BDU              0x80000000
#define ENET_RBD5_TIMESTAMP        0xFFFFFFFF
 
//C++ guard
#ifdef __cplusplus
extern "C" {
#endif
 
//i.MX6UL Ethernet MAC driver (ENET1 instance)
extern const NicDriver mcimx6ulEth1Driver;
 
//i.MX6UL Ethernet MAC related functions
error_t mcimx6ulEth1Init(NetInterface *interface);
void mcimx6ulEth1InitGpio(NetInterface *interface);
void mcimx6ulEth1InitBufferDesc(NetInterface *interface);
 
void mcimx6ulEth1Tick(NetInterface *interface);
 
void mcimx6ulEth1EnableIrq(NetInterface *interface);
void mcimx6ulEth1DisableIrq(NetInterface *interface);
void mcimx6ulEth1EventHandler(NetInterface *interface);
 
error_t mcimx6ulEth1SendPacket(NetInterface *interface,
   const NetBuffer *buffer, size_t offset, NetTxAncillary *ancillary);
 
error_t mcimx6ulEth1ReceivePacket(NetInterface *interface);
 
error_t mcimx6ulEth1UpdateMacAddrFilter(NetInterface *interface);
error_t mcimx6ulEth1UpdateMacConfig(NetInterface *interface);
 
void mcimx6ulEth1WritePhyReg(uint8_t opcode, uint8_t phyAddr,
   uint8_t regAddr, uint16_t data);
 
uint16_t mcimx6ulEth1ReadPhyReg(uint8_t opcode, uint8_t phyAddr,
   uint8_t regAddr);
 
uint32_t mcimx6ulEth1CalcCrc(const void *data, size_t length);
 
//C++ guard
#ifdef __cplusplus
}
#endif
 
#endif