hpm_jl1111.c File Reference

#include "hpm_enet_drv.h"
#include "hpm_jl1111_regs.h"
#include "hpm_jl1111.h"

Functions
static bool	jl1111_check_id (ENET_Type *ptr, uint32_t phy_addr)
bool	jl1111_reset (ENET_Type *ptr, uint32_t phy_addr)
	Reset JL1111 PHY chip. More...
void	jl1111_basic_mode_default_config (ENET_Type *ptr, jl1111_config_t *config)
	Set default configuration for JL1111 PHY basic mode. More...
bool	jl1111_basic_mode_init (ENET_Type *ptr, uint32_t phy_addr, jl1111_config_t *config)
	Initialize JL1111 PHY chip in basic mode. More...
void	jl1111_get_phy_status (ENET_Type *ptr, uint32_t phy_addr, enet_phy_status_t *status)
	Get JL1111 PHY status. More...
void	jl1111_set_itf (ENET_Type *ptr, uint32_t phy_addr, uint8_t itf)
	Set interface mode for JL1111 PHY. More...
void	jl1111_set_rmii_refclk_direction (ENET_Type *ptr, uint32_t phy_addr, uint8_t dir)
	Set RMII reference clock direction for JL1111 PHY. More...
void	jl1111_set_rmii_skew (ENET_Type *ptr, uint32_t phy_addr, uint8_t tx_skew, uint8_t rx_skew)
	Set RMII skew timing for JL1111 PHY. More...
void	jl1111_disable_broadcast_response (ENET_Type *ptr, uint32_t phy_addr)
	Disable broadcast response for JL1111 PHY. More...

Function Documentation

jl1111_basic_mode_default_config()

void jl1111_basic_mode_default_config	(	ENET_Type *	ptr,
		jl1111_config_t *	config
	)

Set default configuration for JL1111 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: 100 Mbps (when auto-negotiation is disabled)
• Duplex: full duplex (when auto-negotiation is disabled)

jl1111_basic_mode_init()

bool jl1111_basic_mode_init	(	ENET_Type *	ptr,
		uint32_t	phy_addr,
		jl1111_config_t *	config
	)

Initialize JL1111 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 JL1111 chip
• Configures the PHY according to the provided configuration
• Sets up loopback mode, auto-negotiation, speed, and duplex settings

jl1111_check_id()

static bool jl1111_check_id ( ENET_Type *  ptr, uint32_t  phy_addr  )

static

jl1111_disable_broadcast_response()

void jl1111_disable_broadcast_response	(	ENET_Type *	ptr,
		uint32_t	phy_addr
	)

Disable broadcast response for JL1111 PHY.

Parameters

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

This function disables the PHY's response to broadcast frames.

jl1111_get_phy_status()

void jl1111_get_phy_status	(	ENET_Type *	ptr,
		uint32_t	phy_addr,
		enet_phy_status_t *	status
	)

Get JL1111 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 or 100 Mbps)
• Duplex mode (half or full)

jl1111_reset()

bool jl1111_reset	(	ENET_Type *	ptr,
		uint32_t	phy_addr
	)

Reset JL1111 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)

jl1111_set_itf()

void jl1111_set_itf	(	ENET_Type *	ptr,
		uint32_t	phy_addr,
		uint8_t	itf
	)

Set interface mode for JL1111 PHY.

Parameters

[in]	ptr	Pointer to the ENET peripheral base address
[in]	phy_addr	PHY address
[in]	itf	Interface mode: jl1111_config_interface_t

This function configures the PHY interface mode (MII or RMII).

jl1111_set_rmii_refclk_direction()

void jl1111_set_rmii_refclk_direction	(	ENET_Type *	ptr,
		uint32_t	phy_addr,
		uint8_t	dir
	)

Set RMII reference clock direction for JL1111 PHY.

Parameters

[in]	ptr	Pointer to the ENET peripheral base address
[in]	phy_addr	PHY address
[in]	dir	Reference clock direction: jl1111_config_refclk_direction_t

This function configures the RMII reference clock direction (input or output).

jl1111_set_rmii_skew()

void jl1111_set_rmii_skew	(	ENET_Type *	ptr,
		uint32_t	phy_addr,
		uint8_t	tx_skew,
		uint8_t	rx_skew
	)

Set RMII skew timing for JL1111 PHY.

Parameters

[in]	ptr	Pointer to the ENET peripheral base address
[in]	phy_addr	PHY address
[in]	tx_skew	TX skew value
[in]	rx_skew	RX skew value

This function configures the RMII TX and RX skew timing values for signal alignment.