lw_emac.c File Reference

#include <bsp.h>
#include <kern.h>
#include <config.h>
#include <bfin_dma.h>
#include <string.h>
#include "lw_emac.h"

Include dependency graph for lw_emac.c:

Go to the source code of this file.

Classes
struct	bfin_emac_regs
struct	ethernet_data

Macros
#define	ETH_FRAME_SIZE   0x614
#define	ETH_RX_BUF_SIZE   2
#define	ETH_TX_BUF_SIZE   1
#define	MII_ANAR_100_FD   BIT (8) /* Can do 100BASE-TX full duplex */
#define	MII_ANAR_10_FD   BIT (6) /* Can do 10BASE-T full duplex */
#define	MII_BMCR   0x00 /* Basic Mode Control Register */
#define	MII_BMCR_ANEG_EN   BIT (12)
#define	MII_BMCR_ANEG_RST   BIT (9)
#define	MII_BMCR_RST   BIT (15)
#define	MII_BMSR   0x01 /* Basic Mode Status Register */
#define	MII_BMSR_ANEGACK   BIT (5)
#define	MII_BMSR_LINK   BIT (2)
#define	MII_LPAR   0x05 /* Auto-Negotiation Link Partner Ability Register */
#define	MII_PHYIDR1   0x02 /* PHY Identifier Register 1 */
#define	MII_PHYIDR2   0x03 /* PHY Identifier Register 2 */
#define	PHY_ADDR   0
#define	PHY_MDC_Hz   2500000
#define	PHY_RETRIES   3000

Typedefs
typedef struct bfin_emac_regs	bfin_emac_regs_t
typedef struct ethernet_data	ethernet_data_t

Functions
static ethernet_data_t rxBuffer[ETH_RX_BUF_SIZE]	__attribute__ ((section(".dma")))
int	bfin_EMAC_init (uint8_t *ethAddr)
int	bfin_EMAC_recv (uint8_t *packet, size_t size)
int	bfin_EMAC_send (void *packet, int length)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, opmode)==0x0)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, staadd)==0x14)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, wkup_ctl)==0x2c)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, wkup_ffcrc1)==0x4c)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, sysctl)==0x60)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, rx_stat)==0x68)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, mmc_ctl)==0x80)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, mmc_tirqe)==0x90)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, mmc_rxc_ok)==0x100)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, mmc_rxc_dmaovf)==0x110)
	COMPILETIME_ASSERT (offsetof(bfin_emac_regs_t, mmc_rxc_ge1024)==0x15c)
	COMPILETIME_ASSERT (sizeof(ethernet_data_t)==0x618)
static uint8_t	lw_emac_init_registers (uint8_t *ethAddr)
static uint32_t	lw_emac_read_phy_reg (uint8_t phy_addr, uint8_t reg_addr)
static void	lw_emac_set_mac_addr (uint8_t *ethAddr)
static void	lw_emac_write_phy_reg (uint8_t phy_addr, uint8_t reg_addr, uint32_t data)

Variables
static volatile bfin_emac_regs_t *	pEth = (bfin_emac_regs_t *) EMAC_OPMODE
static uint8_t	rxIdx
static uint8_t	txIdx

Macro Definition Documentation

#define ETH_FRAME_SIZE   0x614

Definition at line 66 of file lw_emac.c.

#define ETH_RX_BUF_SIZE   2

Definition at line 64 of file lw_emac.c.

#define ETH_TX_BUF_SIZE   1

Definition at line 65 of file lw_emac.c.

#define MII_ANAR_100_FD   BIT (8) /* Can do 100BASE-TX full duplex */

Definition at line 52 of file lw_emac.c.

#define MII_ANAR_10_FD   BIT (6) /* Can do 10BASE-T full duplex */

Definition at line 53 of file lw_emac.c.

#define MII_BMCR   0x00 /* Basic Mode Control Register */

Definition at line 36 of file lw_emac.c.

#define MII_BMCR_ANEG_EN   BIT (12)

Definition at line 44 of file lw_emac.c.

#define MII_BMCR_ANEG_RST   BIT (9)

Definition at line 45 of file lw_emac.c.

#define MII_BMCR_RST   BIT (15)

Definition at line 43 of file lw_emac.c.

#define MII_BMSR   0x01 /* Basic Mode Status Register */

Definition at line 37 of file lw_emac.c.

#define MII_BMSR_ANEGACK   BIT (5)

Definition at line 48 of file lw_emac.c.

#define MII_BMSR_LINK   BIT (2)

Definition at line 49 of file lw_emac.c.

#define MII_LPAR   0x05 /* Auto-Negotiation Link Partner Ability Register */

Definition at line 40 of file lw_emac.c.

#define MII_PHYIDR1   0x02 /* PHY Identifier Register 1 */

Definition at line 38 of file lw_emac.c.

#define MII_PHYIDR2   0x03 /* PHY Identifier Register 2 */

Definition at line 39 of file lw_emac.c.

#define PHY_ADDR   0

Definition at line 62 of file lw_emac.c.

#define PHY_MDC_Hz   2500000

Definition at line 59 of file lw_emac.c.

#define PHY_RETRIES   3000

Definition at line 60 of file lw_emac.c.

Typedef Documentation

typedef struct bfin_emac_regs bfin_emac_regs_t

typedef struct ethernet_data ethernet_data_t

Function Documentation

static ethernet_data_t rxBuffer [ETH_RX_BUF_SIZE] __attribute__ ( (section(".dma"))  )

static

int bfin_EMAC_init

(

uint8_t *

ethAddr

)

Definition at line 288 of file lw_emac.c.

int bfin_EMAC_recv	(	uint8_t *	packet,
		size_t	size
	)

Definition at line 384 of file lw_emac.c.

int bfin_EMAC_send	(	void *	packet,
		int	length
	)

Definition at line 354 of file lw_emac.c.

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, opmode)

= =0x0

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, staadd)

= =0x14

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, wkup_ctl)

= =0x2c

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, wkup_ffcrc1)

= =0x4c

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, sysctl)

= =0x60

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, rx_stat)

= =0x68

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, mmc_ctl)

= =0x80

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, mmc_tirqe)

= =0x90

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, mmc_rxc_ok)

= =0x100

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, mmc_rxc_dmaovf)

= =0x110

)

COMPILETIME_ASSERT

(

offsetof(bfin_emac_regs_t, mmc_rxc_ge1024)

= =0x15c

)

COMPILETIME_ASSERT

(

sizeof(ethernet_data_t)

= =0x618

)

static uint8_t lw_emac_init_registers ( uint8_t *  ethAddr )

static

Definition at line 202 of file lw_emac.c.

static uint32_t lw_emac_read_phy_reg ( uint8_t  phy_addr, uint8_t  reg_addr  )

static

Definition at line 182 of file lw_emac.c.

static void lw_emac_set_mac_addr ( uint8_t *  ethAddr )

static

Definition at line 190 of file lw_emac.c.

static void lw_emac_write_phy_reg ( uint8_t  phy_addr, uint8_t  reg_addr, uint32_t  data  )

static

Definition at line 172 of file lw_emac.c.

Variable Documentation

volatile bfin_emac_regs_t* pEth = (bfin_emac_regs_t *) EMAC_OPMODE

static

Definition at line 157 of file lw_emac.c.

uint8_t rxIdx

static

Definition at line 168 of file lw_emac.c.

uint8_t txIdx

static

Definition at line 168 of file lw_emac.c.