hpm_dp83867.c File Reference

#include "hpm_enet_drv.h"
#include "hpm_dp83867_regs.h"
#include "hpm_dp83867.h"

Functions
static bool	dp83867_check_id (ENET_Type *ptr, uint32_t phy_addr)
static void	dp83867_write_phy_ext (ENET_Type *ptr, uint32_t phy_addr, uint32_t addr, uint32_t data)
static uint16_t	dp83867_read_phy_ext (ENET_Type *ptr, uint32_t phy_addr, uint32_t addr)
bool	dp83867_reset (ENET_Type *ptr, uint32_t phy_addr)
	Reset DP83867 PHY chip. More...
void	dp83867_basic_mode_default_config (ENET_Type *ptr, dp83867_config_t *config)
	Set default configuration for DP83867 PHY basic mode. More...
bool	dp83867_basic_mode_init (ENET_Type *ptr, uint32_t phy_addr, dp83867_config_t *config)
	Initialize DP83867 PHY chip in basic mode. More...
void	dp83867_get_phy_status (ENET_Type *ptr, uint32_t phy_addr, enet_phy_status_t *status)
	Get DP83867 PHY status. More...
void	dp83867_set_mdi_crossover_mode (ENET_Type *ptr, uint32_t phy_addr, enet_phy_crossover_mode_t mode)
	Set MDI crossover mode for DP83867 PHY. More...

Function Documentation

dp83867_basic_mode_default_config()

void dp83867_basic_mode_default_config	(	ENET_Type *	ptr,
		dp83867_config_t *	config
	)

Set default configuration for DP83867 PHY basic mode.

Parameters

[in]	ptr	Pointer to the ENET peripheral base address
[out]	config	Pointer to the configuration structure to be initialized

This function initializes the configuration structure with default values:

• Loopback: disabled
• Auto-negotiation: enabled (unless __DISABLE_AUTO_NEGO is defined)
• Speed: 1000 Mbps (when auto-negotiation is disabled)
• Duplex: full duplex (when auto-negotiation is disabled)

dp83867_basic_mode_init()

bool dp83867_basic_mode_init	(	ENET_Type *	ptr,
		uint32_t	phy_addr,
		dp83867_config_t *	config
	)

Initialize DP83867 PHY chip in basic mode.

Parameters

[in]	ptr	Pointer to the ENET peripheral base address
[in]	phy_addr	PHY address
[in]	config	Pointer to the PHY configuration structure

Return values

true	Initialization completed successfully
false	Initialization failed (PHY ID check failed)

This function performs the following operations:

• Verifies the PHY ID to ensure it's a DP83867 chip
• Configures the PHY according to the provided configuration
• Sets up loopback mode, auto-negotiation, speed, and duplex settings

dp83867_check_id()

static bool dp83867_check_id ( ENET_Type *  ptr, uint32_t  phy_addr  )

static

dp83867_get_phy_status()

void dp83867_get_phy_status	(	ENET_Type *	ptr,
		uint32_t	phy_addr,
		enet_phy_status_t *	status
	)

Get DP83867 PHY status.

Parameters

[in]	ptr	Pointer to the ENET peripheral base address
[in]	phy_addr	PHY address
[out]	status	Pointer to the status structure to store PHY status

This function reads the PHY status register and extracts:

• Link status (up/down)
• Port speed (10 Mbps, 100 Mbps, or 1000 Mbps)
• Duplex mode (half or full)

dp83867_read_phy_ext()

static uint16_t dp83867_read_phy_ext ( ENET_Type *  ptr, uint32_t  phy_addr, uint32_t  addr  )

static

dp83867_reset()

bool dp83867_reset	(	ENET_Type *	ptr,
		uint32_t	phy_addr
	)

Reset DP83867 PHY chip.

Parameters

[in]	ptr	Pointer to the ENET peripheral base address
[in]	phy_addr	PHY address

Return values

true	Reset operation completed successfully
false	Reset operation failed (timeout)

dp83867_set_mdi_crossover_mode()

void dp83867_set_mdi_crossover_mode	(	ENET_Type *	ptr,
		uint32_t	phy_addr,
		enet_phy_crossover_mode_t	mode
	)

Set MDI crossover mode for DP83867 PHY.

Parameters

[in]	ptr	Pointer to the ENET peripheral base address
[in]	phy_addr	PHY address
[in]	mode	Crossover mode: enet_phy_crossover_mode_t

This function configures the MDI/MDIX crossover mode for the PHY. The crossover mode determines how the PHY handles cable connections.

dp83867_write_phy_ext()

static void dp83867_write_phy_ext ( ENET_Type *  ptr, uint32_t  phy_addr, uint32_t  addr, uint32_t  data  )

static