XgNicLanc111

Functions
static uint16_t	NicPhyRead (uint8_t reg)
	Read contents of PHY register. More...
static void	NicPhyWrite (uint8_t reg, uint16_t val)
	Write value to PHY register. More...
static int	NicPhyConfig (void)
	Configure the internal PHY. More...
static INLINE int	NicMmuWait (uint16_t tmo)
	Wait until MMU is ready. More...
static int	NicReset (void)
	Reset the Ethernet controller. More...
static NETBUF *	NicGetPacket (void)
	Fetch the next packet out of the receive ring buffer. More...

Variables
static struct etimer	et
	NIC receiver thread.

Detailed Description

Function Documentation

static NETBUF* NicGetPacket ( void  )

static

Fetch the next packet out of the receive ring buffer.

Nic interrupts must be disabled when calling this funtion.

Returns

Pointer to an allocated NETBUF. If there is no no data available, then the function returns a null pointer. If the NIC's buffer seems to be corrupted, a pointer to 0xFFFF is returned.

Definition at line 960 of file lanc111.c.

References NIC_DATA, NIC_FIFO, NIC_MMUCR, and NIC_PTR.

static INLINE int NicMmuWait ( uint16_t  tmo )

static

Wait until MMU is ready.

Poll the MMU command register until MMUCR_BUSY is cleared.

Parameters

tmo	Timeout in milliseconds.

Returns

0 on success or -1 on timeout.

Definition at line 742 of file lanc111.c.

References MMUCR_BUSY, and NIC_MMUCR.

Referenced by NicReset().

static int NicPhyConfig ( void  )

static

Configure the internal PHY.

Reset the PHY and initiate auto-negotiation.

Definition at line 650 of file lanc111.c.

References NIC_PHYANAD, NIC_PHYCFR1, NIC_PHYCR, NIC_PHYMSK, NIC_PHYSOR, NIC_PHYSR, NIC_RPCR, NicPhyRead(), NicPhyWrite(), PHYANAD_10_HDX, PHYANAD_10FDX, PHYANAD_CSMA, PHYANAD_TX_FDX, PHYANAD_TX_HDX, PHYCR_ANEG_EN, PHYCR_ANEG_RST, PHYCR_RST, PHYMSK_MCWRD, PHYMSK_MDPLDT, PHYMSK_MESD, PHYMSK_MJAB, PHYMSK_MLOSSSYN, PHYMSK_MRPOL, PHYMSK_MSPDDT, PHYMSK_MSSD, PHYSR_ANEG_ACK, RPCR_ANEG, RPCR_LEDA_PAT, and RPCR_LEDB_PAT.

static uint16_t NicPhyRead ( uint8_t  reg )

static

Read contents of PHY register.

Note

NIC interrupts must have been disabled before calling this routine.

Parameters

reg	PHY register number.

Returns

Contents of the specified register.

Definition at line 580 of file lanc111.c.

References MGMT_MCLK, MGMT_MDI, MGMT_MDOE, NIC_MGMT, and NicPhyRegSelect().

Referenced by NicPhyConfig().

static void NicPhyWrite ( uint8_t  reg, uint16_t  val  )

static

Write value to PHY register.

Note

NIC interrupts must have been disabled before calling this routine.

Parameters

reg	PHY register number.
val	Value to write.

Definition at line 616 of file lanc111.c.

References MGMT_MCLK, MGMT_MDO, MGMT_MDOE, NIC_MGMT, and NicPhyRegSelect().

Referenced by NicPhyConfig().

static int NicReset ( void  )

static

Reset the Ethernet controller.

Returns

0 on success, -1 otherwise.

Definition at line 757 of file lanc111.c.

References CR_EPH_EN, CTR_AUTO_RELEASE, NIC_CR, NIC_CTR, NIC_MMUCR, NIC_MSK, NIC_RCR, NIC_TCR, NicMmuWait(), and RCR_SOFT_RST.