/*******************************************************************************
 * Copyright 2020 Microchip Corporation.
 *
 * SPDX-License-Identifier: MIT
 *
 * NULL PHY implementation.
 *
 * This PHY interface is used when there is a direct connection between two GEM
 * instances which does not involve the use of a PHY device.
 *
 * Also used when setting up the default config so that the pointers for the
 * PHY functions in the config always have some valid values.
 *
 */
#include "mpfs_hal/mss_hal.h"

#include "drivers/mss_ethernet_mac/mss_ethernet_registers.h"
#include "drivers/mss_ethernet_mac/mss_ethernet_mac_regs.h"
#include "drivers/mss_ethernet_mac/mss_ethernet_mac_sw_cfg.h"
#include "drivers/mss_ethernet_mac/mss_ethernet_mac.h"
#include "drivers/mss_ethernet_mac/phy.h"

#ifdef __cplusplus
extern "C" {
#endif

#if MSS_MAC_USE_PHY_NULL

/**************************************************************************//**
 * 
 */
void MSS_MAC_NULL_phy_init(/* mss_mac_instance_t */ const void *v_this_mac, uint8_t phy_addr)
{
    /* Nothing to see here... */
    (void)v_this_mac;
    (void)phy_addr;
}

/**************************************************************************//**
 * 
 */
void MSS_MAC_NULL_phy_set_link_speed(/* mss_mac_instance_t */ void *v_this_mac, uint32_t speed_duplex_select, mss_mac_speed_mode_t speed_mode)
{
    /* Nothing to see here... */
    (void)v_this_mac;
    (void)speed_duplex_select;
    (void)speed_mode;
}

/**************************************************************************//**
 * 
 */
void MSS_MAC_NULL_phy_autonegotiate(/* mss_mac_instance_ t */ const void *v_this_mac)
{
    /* Nothing to see here... */
    (void)v_this_mac;
}

/**************************************************************************//**
 * 
 */
void MSS_MAC_NULL_phy_mac_autonegotiate(/* mss_mac_instance_t */ const void *v_this_mac)
{
    /* Nothing to see here... */
    (void)v_this_mac;
}

/**************************************************************************//**
 *
 */
uint8_t MSS_MAC_NULL_phy_get_link_status
(
        /* mss_mac_instance_t */ const void *v_this_mac,
    mss_mac_speed_t * speed,
    uint8_t *     fullduplex
)
{
    uint8_t link_status;

    (void)v_this_mac;
    /* Assume link is up. */
    link_status = MSS_MAC_LINK_UP;

    /* Pick fastest for now... */
    
    *fullduplex = MSS_MAC_FULL_DUPLEX;
    *speed = MSS_MAC_1000MBPS;

    return link_status;
}

#if MSS_MAC_USE_PHY_DP83867
/**************************************************************************//**
 *
 */
uint16_t NULL_ti_read_extended_regs(/* mss_mac_instance_t */ const void *v_this_mac, uint16_t reg)
{
    (void)v_this_mac;
    (void)reg;

    return(0);
}

/**************************************************************************//**
 *
 */
void NULL_ti_write_extended_regs(/* mss_mac_instance_t */ const void *v_this_mac, uint16_t reg, uint16_t data)
{
    (void)v_this_mac;
    (void)reg;
    (void)data;

    /* Nothing to see here... */
}
#endif

#endif /* MSS_MAC_USE_PHY_NULL */
#ifdef __cplusplus
}
#endif

/******************************** END OF FILE ******************************/