SMSC USB Ethernet drivers. More...

#include <stdint.h>
#include <string.h>
#include <byteswap.h>
#include <ipxe/usb.h>
#include <ipxe/usbnet.h>
#include <ipxe/netdevice.h>
#include <ipxe/mii.h>
#include <ipxe/if_ether.h>

Data Structures
union	smscusb_mac
	MAC address. More...

struct	smscusb_interrupt
	Interrupt packet format. More...

struct	smscusb_device
	An SMSC USB device. More...

Macros
#define	SMSCUSB_REGISTER_WRITE
	Register write command. More...

#define	SMSCUSB_REGISTER_READ
	Register read command. More...

#define	SMSCUSB_GET_STATISTICS
	Get statistics command. More...

#define	SMSCUSB_E2P_CMD 0x000
	EEPROM command register offset. More...

#define	SMSCUSB_E2P_CMD_EPC_BSY 0x80000000UL
	EPC busy. More...

#define	SMSCUSB_E2P_CMD_EPC_CMD_READ 0x00000000UL
	READ command. More...

#define	SMSCUSB_E2P_CMD_EPC_ADDR(addr) ( (addr) << 0 )
	EPC address. More...

#define	SMSCUSB_E2P_DATA 0x004
	EEPROM data register offset. More...

#define	SMSCUSB_E2P_DATA_GET(e2p_data) ( ( (e2p_data) >> 0 ) & 0xff )
	EEPROM data. More...

#define	SMSCUSB_EEPROM_MAC 0x01
	MAC address EEPROM address. More...

#define	SMSCUSB_EEPROM_MAX_WAIT_MS 100
	Maximum time to wait for EEPROM (in milliseconds) More...

#define	SMSCUSB_OTP_POWER 0x000
	OTP power register offset. More...

#define	SMSCUSB_OTP_POWER_DOWN 0x00000001UL
	OTP power down. More...

#define	SMSCUSB_OTP_ADDRH 0x004
	OTP address high byte register offset. More...

#define	SMSCUSB_OTP_ADDRL 0x008
	OTP address low byte register offset. More...

#define	SMSCUSB_OTP_DATA 0x018
	OTP data register offset. More...

#define	SMSCUSB_OTP_DATA_GET(otp_data) ( ( (otp_data) >> 0 ) & 0xff )
	OTP data. More...

#define	SMSCUSB_OTP_CMD 0x020
	OTP command selection register offset. More...

#define	SMSCUSB_OTP_CMD_READ 0x00000001UL
	Read command. More...

#define	SMSCUSB_OTP_GO 0x028
	OTP command initiation register offset. More...

#define	SMSCUSB_OTP_GO_GO 0x00000001UL
	Initiate command. More...

#define	SMSCUSB_OTP_STATUS 0x030
	OTP status register offset. More...

#define	SMSCUSB_OTP_STATUS_BUSY 0x00000001UL
	OTP busy. More...

#define	SMSCUSB_OTP_MAX_WAIT_MS 100
	Maximum time to wait for OTP (in milliseconds) More...

#define	SMSCUSB_OTP_1_SIG 0xf3
	OTP layout 1 signature. More...

#define	SMSCUSB_OTP_1_MAC 0x001
	OTP layout 1 MAC address offset. More...

#define	SMSCUSB_OTP_2_SIG 0xf7
	OTP layout 2 signature. More...

#define	SMSCUSB_OTP_2_MAC 0x101
	OTP layout 2 MAC address offset. More...

#define	SMSCUSB_MII_ACCESS 0x000
	MII access register offset. More...

#define	SMSCUSB_MII_ACCESS_PHY_ADDRESS 0x00000800UL
	PHY address. More...

#define	SMSCUSB_MII_ACCESS_MIIRINDA(addr) ( (addr) << 6 )
	MII register. More...

#define	SMSCUSB_MII_ACCESS_MIIWNR 0x00000002UL
	MII write. More...

#define	SMSCUSB_MII_ACCESS_MIIBZY 0x00000001UL
	MII busy. More...

#define	SMSCUSB_MII_DATA 0x004
	MII data register offset. More...

#define	SMSCUSB_MII_DATA_SET(data) ( (data) << 0 )
	Set data. More...

#define	SMSCUSB_MII_DATA_GET(mii_data) ( ( (mii_data) >> 0 ) & 0xffff )
	Get data. More...

#define	SMSCUSB_MII_MAX_WAIT_MS 100
	Maximum time to wait for MII (in milliseconds) More...

#define	SMSCUSB_RX_ADDRH 0x000
	MAC receive address high register offset. More...

#define	SMSCUSB_RX_ADDRL 0x004
	MAC receive address low register offset. More...

#define	SMSCUSB_ADDR_FILTH(n) ( 0x000 + ( 8 * (n) ) )
	MAC address perfect filter N high register offset. More...

#define	SMSCUSB_ADDR_FILTH_VALID 0x80000000UL
	Address valid. More...

#define	SMSCUSB_ADDR_FILTL(n) ( 0x004 + ( 8 * (n) ) )
	MAC address perfect filter N low register offset. More...

#define	SMSCUSB_INTR_MAX_FILL 2
	Interrupt maximum fill level. More...

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)

int	smscusb_raw_writel (struct smscusb_device *smscusb, unsigned int address, uint32_t value)
	Write register (without byte-swapping) More...

int	smscusb_raw_readl (struct smscusb_device smscusb, unsigned int address, uint32_t value)
	Read register (without byte-swapping) More...

static int	smscusb_writel (struct smscusb_device *smscusb, unsigned int address, uint32_t value)
	Write register. More...

static int	smscusb_readl (struct smscusb_device smscusb, unsigned int address, uint32_t value)
	Read register. More...

static int	smscusb_get_statistics (struct smscusb_device smscusb, unsigned int index, void data, size_t len)
	Get statistics. More...

static void	smscusb_init (struct smscusb_device smscusb, struct net_device netdev, struct usb_function func, struct usb_endpoint_driver_operations in)
	Initialise SMSC USB device. More...

static void	smscusb_mii_init (struct smscusb_device *smscusb, unsigned int mii_base, unsigned int phy_source)
	Initialise SMSC USB device MII interface. More...

int	smscusb_eeprom_fetch_mac (struct smscusb_device *smscusb, unsigned int e2p_base)
	Fetch MAC address from EEPROM. More...

int	smscusb_otp_fetch_mac (struct smscusb_device *smscusb, unsigned int otp_base)
	Fetch MAC address from OTP. More...

int	smscusb_fdt_fetch_mac (struct smscusb_device *smscusb)
	Fetch MAC address from device tree. More...

int	smscusb_mii_check_link (struct smscusb_device *smscusb)
	Check link status. More...

int	smscusb_mii_open (struct smscusb_device *smscusb, unsigned int phy_mask, unsigned int intrs)
	Enable PHY interrupts and update link status. More...

int	smscusb_set_address (struct smscusb_device *smscusb, unsigned int addr_base)
	Set receive address. More...

int	smscusb_set_filter (struct smscusb_device *smscusb, unsigned int filt_base)
	Set receive filter. More...

Variables
struct usb_endpoint_driver_operations	smscusb_intr_operations
	Interrupt endpoint operations. More...

struct usb_endpoint_driver_operations	smscusb_out_operations
	Bulk OUT endpoint operations. More...

struct mii_operations	smscusb_mii_operations
	MII operations. More...

Detailed Description

SMSC USB Ethernet drivers.

Definition in file smscusb.h.

Macro Definition Documentation

◆ SMSCUSB_REGISTER_WRITE

#define SMSCUSB_REGISTER_WRITE

Value:

( USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE | \

USB_REQUEST_TYPE ( 0xa0 ) )

USB_DIR_OUT

#define USB_DIR_OUT

Data transfer is from host to device.

Definition: usb.h:94

USB_TYPE_VENDOR

#define USB_TYPE_VENDOR

Vendor-specific request type.

Definition: usb.h:106

USB_RECIP_DEVICE

#define USB_RECIP_DEVICE

Request recipient is the device.

Definition: usb.h:112

Register write command.

Definition at line 22 of file smscusb.h.

◆ SMSCUSB_REGISTER_READ

#define SMSCUSB_REGISTER_READ

Value:

( USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE | \

USB_REQUEST_TYPE ( 0xa1 ) )

USB_TYPE_VENDOR

#define USB_TYPE_VENDOR

Vendor-specific request type.

Definition: usb.h:106

USB_DIR_IN

#define USB_DIR_IN

Data transfer is from device to host.

Definition: usb.h:97

USB_RECIP_DEVICE

#define USB_RECIP_DEVICE

Request recipient is the device.

Definition: usb.h:112

Register read command.

Definition at line 27 of file smscusb.h.

◆ SMSCUSB_GET_STATISTICS

#define SMSCUSB_GET_STATISTICS

Value:

( USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE | \

USB_REQUEST_TYPE ( 0xa2 ) )

USB_TYPE_VENDOR

#define USB_TYPE_VENDOR

Vendor-specific request type.

Definition: usb.h:106

USB_DIR_IN

#define USB_DIR_IN

Data transfer is from device to host.

Definition: usb.h:97

USB_RECIP_DEVICE

#define USB_RECIP_DEVICE

Request recipient is the device.

Definition: usb.h:112

Get statistics command.

Definition at line 32 of file smscusb.h.

◆ SMSCUSB_E2P_CMD

#define SMSCUSB_E2P_CMD 0x000

EEPROM command register offset.

Definition at line 37 of file smscusb.h.

◆ SMSCUSB_E2P_CMD_EPC_BSY

#define SMSCUSB_E2P_CMD_EPC_BSY 0x80000000UL

EPC busy.

Definition at line 38 of file smscusb.h.

◆ SMSCUSB_E2P_CMD_EPC_CMD_READ

#define SMSCUSB_E2P_CMD_EPC_CMD_READ 0x00000000UL

READ command.

Definition at line 39 of file smscusb.h.

◆ SMSCUSB_E2P_CMD_EPC_ADDR

#define SMSCUSB_E2P_CMD_EPC_ADDR ( addr ) ( (addr) << 0 )

EPC address.

Definition at line 40 of file smscusb.h.

◆ SMSCUSB_E2P_DATA

#define SMSCUSB_E2P_DATA 0x004

EEPROM data register offset.

Definition at line 43 of file smscusb.h.

◆ SMSCUSB_E2P_DATA_GET

#define SMSCUSB_E2P_DATA_GET ( e2p_data ) ( ( (e2p_data) >> 0 ) & 0xff )

EEPROM data.

Definition at line 44 of file smscusb.h.

◆ SMSCUSB_EEPROM_MAC

#define SMSCUSB_EEPROM_MAC 0x01

MAC address EEPROM address.

Definition at line 49 of file smscusb.h.

◆ SMSCUSB_EEPROM_MAX_WAIT_MS

#define SMSCUSB_EEPROM_MAX_WAIT_MS 100

Maximum time to wait for EEPROM (in milliseconds)

Definition at line 52 of file smscusb.h.

◆ SMSCUSB_OTP_POWER

#define SMSCUSB_OTP_POWER 0x000

OTP power register offset.

Definition at line 55 of file smscusb.h.

◆ SMSCUSB_OTP_POWER_DOWN

#define SMSCUSB_OTP_POWER_DOWN 0x00000001UL

OTP power down.

Definition at line 56 of file smscusb.h.

◆ SMSCUSB_OTP_ADDRH

#define SMSCUSB_OTP_ADDRH 0x004

OTP address high byte register offset.

Definition at line 59 of file smscusb.h.

◆ SMSCUSB_OTP_ADDRL

#define SMSCUSB_OTP_ADDRL 0x008

OTP address low byte register offset.

Definition at line 62 of file smscusb.h.

◆ SMSCUSB_OTP_DATA

#define SMSCUSB_OTP_DATA 0x018

OTP data register offset.

Definition at line 65 of file smscusb.h.

◆ SMSCUSB_OTP_DATA_GET

#define SMSCUSB_OTP_DATA_GET ( otp_data ) ( ( (otp_data) >> 0 ) & 0xff )

OTP data.

Definition at line 66 of file smscusb.h.

◆ SMSCUSB_OTP_CMD

#define SMSCUSB_OTP_CMD 0x020

OTP command selection register offset.

Definition at line 71 of file smscusb.h.

◆ SMSCUSB_OTP_CMD_READ

#define SMSCUSB_OTP_CMD_READ 0x00000001UL

Read command.

Definition at line 72 of file smscusb.h.

◆ SMSCUSB_OTP_GO

#define SMSCUSB_OTP_GO 0x028

OTP command initiation register offset.

Definition at line 75 of file smscusb.h.

◆ SMSCUSB_OTP_GO_GO

#define SMSCUSB_OTP_GO_GO 0x00000001UL

Initiate command.

Definition at line 76 of file smscusb.h.

◆ SMSCUSB_OTP_STATUS

#define SMSCUSB_OTP_STATUS 0x030

OTP status register offset.

Definition at line 79 of file smscusb.h.

◆ SMSCUSB_OTP_STATUS_BUSY

#define SMSCUSB_OTP_STATUS_BUSY 0x00000001UL

OTP busy.

Definition at line 80 of file smscusb.h.

◆ SMSCUSB_OTP_MAX_WAIT_MS

#define SMSCUSB_OTP_MAX_WAIT_MS 100

Maximum time to wait for OTP (in milliseconds)

Definition at line 83 of file smscusb.h.

◆ SMSCUSB_OTP_1_SIG

#define SMSCUSB_OTP_1_SIG 0xf3

OTP layout 1 signature.

Definition at line 86 of file smscusb.h.

◆ SMSCUSB_OTP_1_MAC

#define SMSCUSB_OTP_1_MAC 0x001

OTP layout 1 MAC address offset.

Definition at line 89 of file smscusb.h.

◆ SMSCUSB_OTP_2_SIG

#define SMSCUSB_OTP_2_SIG 0xf7

OTP layout 2 signature.

Definition at line 92 of file smscusb.h.

◆ SMSCUSB_OTP_2_MAC

#define SMSCUSB_OTP_2_MAC 0x101

OTP layout 2 MAC address offset.

Definition at line 95 of file smscusb.h.

◆ SMSCUSB_MII_ACCESS

#define SMSCUSB_MII_ACCESS 0x000

MII access register offset.

Definition at line 98 of file smscusb.h.

◆ SMSCUSB_MII_ACCESS_PHY_ADDRESS

#define SMSCUSB_MII_ACCESS_PHY_ADDRESS 0x00000800UL

PHY address.

Definition at line 99 of file smscusb.h.

◆ SMSCUSB_MII_ACCESS_MIIRINDA

#define SMSCUSB_MII_ACCESS_MIIRINDA ( addr ) ( (addr) << 6 )

MII register.

Definition at line 100 of file smscusb.h.

◆ SMSCUSB_MII_ACCESS_MIIWNR

#define SMSCUSB_MII_ACCESS_MIIWNR 0x00000002UL

MII write.

Definition at line 101 of file smscusb.h.

◆ SMSCUSB_MII_ACCESS_MIIBZY

#define SMSCUSB_MII_ACCESS_MIIBZY 0x00000001UL

MII busy.

Definition at line 102 of file smscusb.h.

◆ SMSCUSB_MII_DATA

#define SMSCUSB_MII_DATA 0x004

MII data register offset.

Definition at line 105 of file smscusb.h.

◆ SMSCUSB_MII_DATA_SET

#define SMSCUSB_MII_DATA_SET ( data ) ( (data) << 0 )

Set data.

Definition at line 106 of file smscusb.h.

◆ SMSCUSB_MII_DATA_GET

#define SMSCUSB_MII_DATA_GET ( mii_data ) ( ( (mii_data) >> 0 ) & 0xffff )

Get data.

Definition at line 107 of file smscusb.h.

◆ SMSCUSB_MII_MAX_WAIT_MS

#define SMSCUSB_MII_MAX_WAIT_MS 100

Maximum time to wait for MII (in milliseconds)

Definition at line 112 of file smscusb.h.

◆ SMSCUSB_RX_ADDRH

#define SMSCUSB_RX_ADDRH 0x000

MAC receive address high register offset.

Definition at line 128 of file smscusb.h.

◆ SMSCUSB_RX_ADDRL

#define SMSCUSB_RX_ADDRL 0x004

MAC receive address low register offset.

Definition at line 131 of file smscusb.h.

◆ SMSCUSB_ADDR_FILTH

#define SMSCUSB_ADDR_FILTH ( n ) ( 0x000 + ( 8 * (n) ) )

MAC address perfect filter N high register offset.

Definition at line 134 of file smscusb.h.

◆ SMSCUSB_ADDR_FILTH_VALID

#define SMSCUSB_ADDR_FILTH_VALID 0x80000000UL

Address valid.

Definition at line 135 of file smscusb.h.

◆ SMSCUSB_ADDR_FILTL

#define SMSCUSB_ADDR_FILTL ( n ) ( 0x004 + ( 8 * (n) ) )

MAC address perfect filter N low register offset.

Definition at line 138 of file smscusb.h.

◆ SMSCUSB_INTR_MAX_FILL

#define SMSCUSB_INTR_MAX_FILL 2

Interrupt maximum fill level.

This is a policy decision.

Definition at line 244 of file smscusb.h.

Function Documentation

◆ FILE_LICENCE()

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )

◆ smscusb_raw_writel()

int smscusb_raw_writel	(	struct smscusb_device *	smscusb,
		unsigned int	address,
		uint32_t	value
	)

Write register (without byte-swapping)

Parameters

smscusb	Smscusb device
address	Register address
value	Register value

Return values

rc	Return status code

Definition at line 61 of file smscusb.c.

                                           {
         int rc;
 
         /* Write register */
         DBGCIO ( smscusb, "SMSCUSB %p [%03x] <= %08x\n",
                  smscusb, address, le32_to_cpu ( value ) );
         if ( ( rc = usb_control ( smscusb->usb, SMSCUSB_REGISTER_WRITE, 0,
                                   address, &value, sizeof ( value ) ) ) != 0 ) {
                 DBGC ( smscusb, "SMSCUSB %p could not write %03x: %s\n",
                        smscusb, address, strerror ( rc ) );
                 return rc;
         }
 
         return 0;
 }

References address, DBGC, DBGCIO, le32_to_cpu, rc, SMSCUSB_REGISTER_WRITE, strerror(), smscusb_device::usb, usb_control(), and value.

Referenced by smscusb_set_address(), and smscusb_set_filter().

◆ smscusb_raw_readl()

int smscusb_raw_readl	(	struct smscusb_device *	smscusb,
		unsigned int	address,
		uint32_t *	value
	)

Read register (without byte-swapping)

Parameters

smscusb	SMSC USB device
address	Register address

Return values

value	Register value
rc	Return status code

Definition at line 86 of file smscusb.c.

                                           {
         int rc;
 
         /* Read register */
         if ( ( rc = usb_control ( smscusb->usb, SMSCUSB_REGISTER_READ, 0,
                                   address, value, sizeof ( *value ) ) ) != 0 ) {
                 DBGC ( smscusb, "SMSCUSB %p could not read %03x: %s\n",
                        smscusb, address, strerror ( rc ) );
                 return rc;
         }
         DBGCIO ( smscusb, "SMSCUSB %p [%03x] => %08x\n",
                  smscusb, address, le32_to_cpu ( *value ) );
 
         return 0;
 }

References address, DBGC, DBGCIO, le32_to_cpu, rc, SMSCUSB_REGISTER_READ, strerror(), smscusb_device::usb, usb_control(), and value.

◆ smscusb_writel()

static int smscusb_writel	(	struct smscusb_device *	smscusb,
		unsigned int	address,
		uint32_t	value
	)

inlinestatic

Write register.

Parameters

smscusb	SMSC USB device
address	Register address
value	Register value

Return values

rc	Return status code

Definition at line 182 of file smscusb.h.

201 {

Referenced by lan78xx_eeprom_fetch_mac(), lan78xx_open(), lan78xx_reset(), smsc75xx_open(), smsc75xx_poll(), smsc75xx_reset(), smsc95xx_open(), smsc95xx_poll(), smsc95xx_reset(), smscusb_eeprom_read_byte(), smscusb_mii_read(), smscusb_mii_write(), smscusb_otp_power_up(), and smscusb_otp_read_byte().

◆ smscusb_readl()

static int smscusb_readl	(	struct smscusb_device *	smscusb,
		unsigned int	address,
		uint32_t *	value
	)

inlinestatic

Read register.

Parameters

smscusb	SMSC USB device
address	Register address

Return values

value	Register value
rc	Return status code

Definition at line 203 of file smscusb.h.

223 {

Referenced by lan78xx_eeprom_fetch_mac(), lan78xx_open(), lan78xx_reset(), smsc75xx_reset(), smsc95xx_reset(), smscusb_eeprom_read_byte(), smscusb_eeprom_wait(), smscusb_mii_read(), smscusb_mii_wait(), smscusb_otp_power_up(), smscusb_otp_read_byte(), and smscusb_otp_wait().

◆ smscusb_get_statistics()

static int smscusb_get_statistics	(	struct smscusb_device *	smscusb,
		unsigned int	index,
		void *	data,
		size_t	len
	)

inlinestatic

Get statistics.

Parameters

smscusb	SMSC USB device
index	Statistics set index
data	Statistics data to fill in
len	Length of statistics data

Return values

rc	Return status code

Definition at line 225 of file smscusb.h.

                                                               {
                 DBGC ( smscusb, "SMSCUSB %p could not get statistics set %d: "
                        "%s\n", smscusb, index, strerror ( rc ) );
                 return rc;
         }
 
         return 0;
 }
 
 /** Interrupt maximum fill level
  *

References DBGC, index, rc, and strerror().

Referenced by smsc75xx_dump_statistics(), and smsc95xx_dump_statistics().

◆ smscusb_init()

static void smscusb_init	(	struct smscusb_device *	smscusb,
		struct net_device *	netdev,
		struct usb_function *	func,
		struct usb_endpoint_driver_operations *	in
	)

inlinestatic

Initialise SMSC USB device.

Parameters

smscusb	SMSC USB device
netdev	Network device
func	USB function
in	Bulk IN endpoint operations

Definition at line 259 of file smscusb.h.

278 {

Referenced by lan78xx_probe(), smsc75xx_probe(), and smsc95xx_probe().

◆ smscusb_mii_init()

static void smscusb_mii_init	(	struct smscusb_device *	smscusb,
		unsigned int	mii_base,
		unsigned int	phy_source
	)

inlinestatic

Initialise SMSC USB device MII interface.

Parameters

smscusb	SMSC USB device
mii_base	MII register base
phy_source	Interrupt source PHY register

Definition at line 280 of file smscusb.h.

Referenced by lan78xx_probe(), smsc75xx_probe(), and smsc95xx_probe().

◆ smscusb_eeprom_fetch_mac()

int smscusb_eeprom_fetch_mac	(	struct smscusb_device *	smscusb,
		unsigned int	e2p_base
	)

Fetch MAC address from EEPROM.

Parameters

smscusb	SMSC USB device
e2p_base	E2P register base

Return values

rc	Return status code

Definition at line 215 of file smscusb.c.

                                                        {
         struct net_device *netdev = smscusb->netdev;
         int rc;
 
         /* Read MAC address from EEPROM */
         if ( ( rc = smscusb_eeprom_read ( smscusb, e2p_base, SMSCUSB_EEPROM_MAC,
                                           netdev->hw_addr, ETH_ALEN ) ) != 0 )
                 return rc;
 
         /* Check that EEPROM is physically present */
         if ( ! is_valid_ether_addr ( netdev->hw_addr ) ) {
                 DBGC ( smscusb, "SMSCUSB %p has no EEPROM MAC (%s)\n",
                        smscusb, eth_ntoa ( netdev->hw_addr ) );
                 return -ENODEV;
         }
 
         DBGC ( smscusb, "SMSCUSB %p using EEPROM MAC %s\n",
                smscusb, eth_ntoa ( netdev->hw_addr ) );
         return 0;
 }

References DBGC, ENODEV, ETH_ALEN, eth_ntoa(), net_device::hw_addr, is_valid_ether_addr(), netdev, smscusb_device::netdev, rc, SMSCUSB_EEPROM_MAC, and smscusb_eeprom_read().

Referenced by lan78xx_eeprom_fetch_mac(), smsc75xx_probe(), and smsc95xx_fetch_mac().

◆ smscusb_otp_fetch_mac()

int smscusb_otp_fetch_mac	(	struct smscusb_device *	smscusb,
		unsigned int	otp_base
	)

Fetch MAC address from OTP.

Parameters

smscusb	SMSC USB device
otp_base	OTP register base

Return values

rc	Return status code

Definition at line 400 of file smscusb.c.

                                                     {
         struct net_device *netdev = smscusb->netdev;
         uint8_t signature;
         unsigned int address;
         int rc;
 
         /* Read OTP signature byte */
         if ( ( rc = smscusb_otp_read ( smscusb, otp_base, 0, &signature,
                                        sizeof ( signature ) ) ) != 0 )
                 return rc;
 
         /* Determine location of MAC address */
         switch ( signature ) {
         case SMSCUSB_OTP_1_SIG:
                 address = SMSCUSB_OTP_1_MAC;
                 break;
         case SMSCUSB_OTP_2_SIG:
                 address = SMSCUSB_OTP_2_MAC;
                 break;
         default:
                 DBGC ( smscusb, "SMSCUSB %p unknown OTP signature %#02x\n",
                        smscusb, signature );
                 return -ENOTSUP;
         }
 
         /* Read MAC address from OTP */
         if ( ( rc = smscusb_otp_read ( smscusb, otp_base, address,
                                        netdev->hw_addr, ETH_ALEN ) ) != 0 )
                 return rc;
 
         /* Check that OTP is valid */
         if ( ! is_valid_ether_addr ( netdev->hw_addr ) ) {
                 DBGC ( smscusb, "SMSCUSB %p has no layout %#02x OTP MAC (%s)\n",
                        smscusb, signature, eth_ntoa ( netdev->hw_addr ) );
                 return -ENODEV;
         }
 
         DBGC ( smscusb, "SMSCUSB %p using layout %#02x OTP MAC %s\n",
                smscusb, signature, eth_ntoa ( netdev->hw_addr ) );
         return 0;
 }

References address, DBGC, ENODEV, ENOTSUP, ETH_ALEN, eth_ntoa(), net_device::hw_addr, is_valid_ether_addr(), netdev, smscusb_device::netdev, rc, signature, SMSCUSB_OTP_1_MAC, SMSCUSB_OTP_1_SIG, SMSCUSB_OTP_2_MAC, SMSCUSB_OTP_2_SIG, and smscusb_otp_read().

Referenced by lan78xx_fetch_mac().

◆ smscusb_fdt_fetch_mac()

int smscusb_fdt_fetch_mac ( struct smscusb_device * smscusb )

Fetch MAC address from device tree.

Parameters

smscusb SMSC USB device

Return values

rc	Return status code

Definition at line 456 of file smscusb.c.

                                                              {
         struct net_device *netdev = smscusb->netdev;
         unsigned int offset;
         int rc;
 
         /* Look for "ethernet[0]" alias */
         if ( ( rc = fdt_alias ( "ethernet", &offset ) != 0 ) &&
              ( rc = fdt_alias ( "ethernet0", &offset ) != 0 ) ) {
                 return rc;
         }
 
         /* Fetch MAC address */
         if ( ( rc = fdt_mac ( offset, netdev ) ) != 0 )
                 return rc;
 
         DBGC ( smscusb, "SMSCUSB %p using FDT MAC %s\n",
                smscusb, eth_ntoa ( netdev->hw_addr ) );
         return 0;
 }

References DBGC, eth_ntoa(), fdt_alias(), fdt_mac(), net_device::hw_addr, netdev, smscusb_device::netdev, offset, and rc.

Referenced by lan78xx_fetch_mac(), and smsc95xx_fetch_mac().

◆ smscusb_mii_check_link()

int smscusb_mii_check_link ( struct smscusb_device * smscusb )

Check link status.

Parameters

smscusb SMSC USB device

Return values

rc	Return status code

Definition at line 613 of file smscusb.c.

                                                               {
         struct net_device *netdev = smscusb->netdev;
         int intr;
         int rc;
 
         /* Read PHY interrupt source */
         intr = mii_read ( &smscusb->mii, smscusb->phy_source );
         if ( intr < 0 ) {
                 rc = intr;
                 DBGC ( smscusb, "SMSCUSB %p could not get PHY interrupt "
                        "source: %s\n", smscusb, strerror ( rc ) );
                 return rc;
         }
 
         /* Acknowledge PHY interrupt */
         if ( ( rc = mii_write ( &smscusb->mii, smscusb->phy_source,
                                 intr ) ) != 0 ) {
                 DBGC ( smscusb, "SMSCUSB %p could not acknowledge PHY "
                        "interrupt: %s\n", smscusb, strerror ( rc ) );
                 return rc;
         }
 
         /* Check link status */
         if ( ( rc = mii_check_link ( &smscusb->mii, netdev ) ) != 0 ) {
                 DBGC ( smscusb, "SMSCUSB %p could not check link: %s\n",
                        smscusb, strerror ( rc ) );
                 return rc;
         }
 
         DBGC ( smscusb, "SMSCUSB %p link %s (intr %#04x)\n",
                smscusb, ( netdev_link_ok ( netdev ) ? "up" : "down" ), intr );
         return 0;
 }

References DBGC, intr, smscusb_device::mii, mii_check_link(), mii_read(), mii_write(), netdev, smscusb_device::netdev, netdev_link_ok(), smscusb_device::phy_source, rc, and strerror().

Referenced by smsc75xx_poll(), smsc95xx_poll(), and smscusb_mii_open().

◆ smscusb_mii_open()

int smscusb_mii_open	(	struct smscusb_device *	smscusb,
		unsigned int	phy_mask,
		unsigned int	intrs
	)

Enable PHY interrupts and update link status.

Parameters

smscusb	SMSC USB device
phy_mask	PHY interrupt mask register
intrs	PHY interrupts to enable

Return values

rc	Return status code

Definition at line 655 of file smscusb.c.

                                                                    {
         int rc;
 
         /* Enable PHY interrupts */
         if ( ( rc = mii_write ( &smscusb->mii, phy_mask, intrs ) ) != 0 ) {
                 DBGC ( smscusb, "SMSCUSB %p could not set PHY interrupt "
                        "mask: %s\n", smscusb, strerror ( rc ) );
                 return rc;
         }
 
         /* Update link status */
         smscusb_mii_check_link ( smscusb );
 
         return 0;
 }

References DBGC, smscusb_device::mii, mii_write(), rc, smscusb_mii_check_link(), and strerror().

Referenced by lan78xx_open(), smsc75xx_open(), and smsc95xx_open().

◆ smscusb_set_address()

int smscusb_set_address	(	struct smscusb_device *	smscusb,
		unsigned int	addr_base
	)

Set receive address.

Parameters

smscusb	SMSC USB device
addr_base	Receive address register base

Return values

rc	Return status code

Definition at line 686 of file smscusb.c.

                                                    {
         struct net_device *netdev = smscusb->netdev;
         union smscusb_mac mac;
         int rc;
 
         /* Copy MAC address */
         memset ( &mac, 0, sizeof ( mac ) );
         memcpy ( mac.raw, netdev->ll_addr, ETH_ALEN );
 
         /* Write MAC address high register */
         if ( ( rc = smscusb_raw_writel ( smscusb,
                                          ( addr_base + SMSCUSB_RX_ADDRH ),
                                          mac.addr.h ) ) != 0 )
                 return rc;
 
         /* Write MAC address low register */
         if ( ( rc = smscusb_raw_writel ( smscusb,
                                          ( addr_base + SMSCUSB_RX_ADDRL ),
                                          mac.addr.l ) ) != 0 )
                 return rc;
 
         return 0;
 }

References ETH_ALEN, net_device::ll_addr, mac, memcpy(), memset(), netdev, smscusb_device::netdev, rc, smscusb_raw_writel(), SMSCUSB_RX_ADDRH, and SMSCUSB_RX_ADDRL.

Referenced by lan78xx_open(), smsc75xx_open(), and smsc95xx_open().

◆ smscusb_set_filter()

int smscusb_set_filter	(	struct smscusb_device *	smscusb,
		unsigned int	filt_base
	)

Set receive filter.

Parameters

smscusb	SMSC USB device
filt_base	Receive filter register base

Return values

rc	Return status code

Definition at line 718 of file smscusb.c.

                                                   {
         struct net_device *netdev = smscusb->netdev;
         union smscusb_mac mac;
         int rc;
 
         /* Copy MAC address */
         memset ( &mac, 0, sizeof ( mac ) );
         memcpy ( mac.raw, netdev->ll_addr, ETH_ALEN );
         mac.addr.h |= cpu_to_le32 ( SMSCUSB_ADDR_FILTH_VALID );
 
         /* Write MAC address perfect filter high register */
         if ( ( rc = smscusb_raw_writel ( smscusb,
                                          ( filt_base + SMSCUSB_ADDR_FILTH(0) ),
                                          mac.addr.h ) ) != 0 )
                 return rc;
 
         /* Write MAC address perfect filter low register */
         if ( ( rc = smscusb_raw_writel ( smscusb,
                                          ( filt_base + SMSCUSB_ADDR_FILTL(0) ),
                                          mac.addr.l ) ) != 0 )
                 return rc;
 
         return 0;
 }

References cpu_to_le32, ETH_ALEN, net_device::ll_addr, mac, memcpy(), memset(), netdev, smscusb_device::netdev, rc, SMSCUSB_ADDR_FILTH, SMSCUSB_ADDR_FILTH_VALID, SMSCUSB_ADDR_FILTL, and smscusb_raw_writel().

Referenced by lan78xx_open(), and smsc75xx_open().

Variable Documentation

◆ smscusb_intr_operations

struct usb_endpoint_driver_operations smscusb_intr_operations

Interrupt endpoint operations.

Definition at line 801 of file smscusb.c.

◆ smscusb_out_operations

struct usb_endpoint_driver_operations smscusb_out_operations

Bulk OUT endpoint operations.

Definition at line 823 of file smscusb.c.

◆ smscusb_mii_operations

struct mii_operations smscusb_mii_operations

MII operations.

Definition at line 602 of file smscusb.c.

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ SMSCUSB_REGISTER_WRITE

◆ SMSCUSB_REGISTER_READ

◆ SMSCUSB_GET_STATISTICS

◆ SMSCUSB_E2P_CMD

◆ SMSCUSB_E2P_CMD_EPC_BSY

◆ SMSCUSB_E2P_CMD_EPC_CMD_READ

◆ SMSCUSB_E2P_CMD_EPC_ADDR

◆ SMSCUSB_E2P_DATA

◆ SMSCUSB_E2P_DATA_GET

◆ SMSCUSB_EEPROM_MAC

◆ SMSCUSB_EEPROM_MAX_WAIT_MS

◆ SMSCUSB_OTP_POWER

◆ SMSCUSB_OTP_POWER_DOWN

◆ SMSCUSB_OTP_ADDRH

◆ SMSCUSB_OTP_ADDRL

◆ SMSCUSB_OTP_DATA

◆ SMSCUSB_OTP_DATA_GET

◆ SMSCUSB_OTP_CMD

◆ SMSCUSB_OTP_CMD_READ

◆ SMSCUSB_OTP_GO

◆ SMSCUSB_OTP_GO_GO

◆ SMSCUSB_OTP_STATUS

◆ SMSCUSB_OTP_STATUS_BUSY

◆ SMSCUSB_OTP_MAX_WAIT_MS

◆ SMSCUSB_OTP_1_SIG

◆ SMSCUSB_OTP_1_MAC

◆ SMSCUSB_OTP_2_SIG

◆ SMSCUSB_OTP_2_MAC

◆ SMSCUSB_MII_ACCESS

◆ SMSCUSB_MII_ACCESS_PHY_ADDRESS

◆ SMSCUSB_MII_ACCESS_MIIRINDA

◆ SMSCUSB_MII_ACCESS_MIIWNR

◆ SMSCUSB_MII_ACCESS_MIIBZY

◆ SMSCUSB_MII_DATA

◆ SMSCUSB_MII_DATA_SET

◆ SMSCUSB_MII_DATA_GET

◆ SMSCUSB_MII_MAX_WAIT_MS

◆ SMSCUSB_RX_ADDRH

◆ SMSCUSB_RX_ADDRL

◆ SMSCUSB_ADDR_FILTH

◆ SMSCUSB_ADDR_FILTH_VALID

◆ SMSCUSB_ADDR_FILTL

◆ SMSCUSB_INTR_MAX_FILL

Function Documentation

◆ FILE_LICENCE()

◆ smscusb_raw_writel()

◆ smscusb_raw_readl()

◆ smscusb_writel()

◆ smscusb_readl()

◆ smscusb_get_statistics()

◆ smscusb_init()

◆ smscusb_mii_init()

◆ smscusb_eeprom_fetch_mac()

◆ smscusb_otp_fetch_mac()

◆ smscusb_fdt_fetch_mac()

◆ smscusb_mii_check_link()

◆ smscusb_mii_open()

◆ smscusb_set_address()

◆ smscusb_set_filter()

Variable Documentation

◆ smscusb_intr_operations

◆ smscusb_out_operations

◆ smscusb_mii_operations