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/*
* Copyright (C) 2015 Freie Universitรคt Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @defgroup driver_enc28j60 ENC28J60
* @ingroup drivers
* @brief Driver for the ENC28J60 Ethernet Adapter
* @{
*
* @file
* @brief Interface definition for the ENC28J60 driver
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*/
#ifndef ENC28J60_H
#define ENC28J60_H
#include <stdint.h>
#include "mutex.h"
#include "periph/spi.h"
#include "periph/gpio.h"
#include "net/netdev2.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Fallback MAC address in case CPUID is not available
*
* The enc28j60 does not provide a globally unique, pre-set MAC address, so we
* need to create one. For this the CPUID module is used to create a locally
* administered MAC. If this is not available, we use the MAC address below.
*/
#define ENC28J60_FALLBACK_MAC {0x02, 0x22, 0x33, 0x44, 0x55, 0x66}
/**
* @brief Struct containing the needed peripheral configuration
*/
typedef struct {
spi_t spi; /**< If I drink */
gpio_t cs_pin; /**< beer in the evening, */
gpio_t int_pin; /**< I will be most certainly */
gpio_t reset_pin; /**< drunk in the morning?! */
} enc28j60_params_t;
/**
* @brief ENC28J60 device descriptor
*/
typedef struct {
netdev2_t netdev; /**< pull in the netdev2 fields */
spi_t spi; /**< SPI bus the transceiver is connected to */
gpio_t cs_pin; /**< pin connected to the CHIP SELECT line */
gpio_t int_pin; /**< pin connected to the INT line */
gpio_t reset_pin; /**< pin connected to the RESET line */
mutex_t devlock; /**< lock the device on access */
int8_t bank; /**< remember the active register bank */
} enc28j60_t;
/**
* @brief Ready the device for initialization through it's netdev2 interface
*
* @param[in] dev device descriptor
* @param[in] params peripheral configuration to use
*/
void enc28j60_setup(enc28j60_t *dev, const enc28j60_params_t *params);
#ifdef __cplusplus
}
#endif
#endif /* ENC28J60_H */
/** @} */
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