224 lines
6.1 KiB
C
224 lines
6.1 KiB
C
#ifndef _SMSC75XX_H
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#define _SMSC75XX_H
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/** @file
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*
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* SMSC LAN75xx USB Ethernet driver
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*
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include "smscusb.h"
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/** Interrupt status register */
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#define SMSC75XX_INT_STS 0x00c
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#define SMSC75XX_INT_STS_RDFO_INT 0x00400000UL /**< RX FIFO overflow */
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#define SMSC75XX_INT_STS_PHY_INT 0x00020000UL /**< PHY interrupt */
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/** Hardware configuration register */
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#define SMSC75XX_HW_CFG 0x010
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#define SMSC75XX_HW_CFG_BIR 0x00000080UL /**< Bulk IN use NAK */
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#define SMSC75XX_HW_CFG_LRST 0x00000002UL /**< Soft lite reset */
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/** Interrupt endpoint control register */
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#define SMSC75XX_INT_EP_CTL 0x038
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#define SMSC75XX_INT_EP_CTL_RDFO_EN 0x00400000UL /**< RX FIFO overflow */
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#define SMSC75XX_INT_EP_CTL_PHY_EN 0x00020000UL /**< PHY interrupt */
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/** Bulk IN delay register */
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#define SMSC75XX_BULK_IN_DLY 0x03c
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#define SMSC75XX_BULK_IN_DLY_SET(ticks) ( (ticks) << 0 ) /**< Delay / 16.7ns */
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/** EEPROM register base */
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#define SMSC75XX_E2P_BASE 0x040
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/** Receive filtering engine control register */
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#define SMSC75XX_RFE_CTL 0x060
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#define SMSC75XX_RFE_CTL_AB 0x00000400UL /**< Accept broadcast */
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#define SMSC75XX_RFE_CTL_AM 0x00000200UL /**< Accept multicast */
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#define SMSC75XX_RFE_CTL_AU 0x00000100UL /**< Accept unicast */
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/** FIFO controller RX FIFO control register */
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#define SMSC75XX_FCT_RX_CTL 0x090
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#define SMSC75XX_FCT_RX_CTL_EN 0x80000000UL /**< FCT RX enable */
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#define SMSC75XX_FCT_RX_CTL_BAD 0x02000000UL /**< Store bad frames */
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/** FIFO controller TX FIFO control register */
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#define SMSC75XX_FCT_TX_CTL 0x094
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#define SMSC75XX_FCT_TX_CTL_EN 0x80000000UL /**< FCT TX enable */
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/** MAC receive register */
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#define SMSC75XX_MAC_RX 0x104
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#define SMSC75XX_MAC_RX_MAX_SIZE(mtu) ( (mtu) << 16 ) /**< Max frame size */
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#define SMSC75XX_MAC_RX_MAX_SIZE_DEFAULT \
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SMSC75XX_MAC_RX_MAX_SIZE ( ETH_FRAME_LEN + 4 /* VLAN */ + 4 /* CRC */ )
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#define SMSC75XX_MAC_RX_FCS 0x00000010UL /**< FCS stripping */
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#define SMSC75XX_MAC_RX_EN 0x00000001UL /**< RX enable */
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/** MAC transmit register */
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#define SMSC75XX_MAC_TX 0x108
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#define SMSC75XX_MAC_TX_EN 0x00000001UL /**< TX enable */
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/** MAC receive address register base */
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#define SMSC75XX_RX_ADDR_BASE 0x118
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/** MII register base */
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#define SMSC75XX_MII_BASE 0x120
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/** PHY interrupt source MII register */
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#define SMSC75XX_MII_PHY_INTR_SOURCE 29
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/** PHY interrupt mask MII register */
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#define SMSC75XX_MII_PHY_INTR_MASK 30
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/** PHY interrupt: auto-negotiation complete */
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#define SMSC75XX_PHY_INTR_ANEG_DONE 0x0040
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/** PHY interrupt: link down */
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#define SMSC75XX_PHY_INTR_LINK_DOWN 0x0010
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/** MAC address perfect filter register base */
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#define SMSC75XX_ADDR_FILT_BASE 0x300
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/** Receive packet header */
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struct smsc75xx_rx_header {
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/** RX command word */
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uint32_t command;
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/** VLAN tag */
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uint16_t vtag;
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/** Checksum */
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uint16_t csum;
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/** Two-byte padding used to align Ethernet payload */
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uint16_t pad;
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} __attribute__ (( packed ));
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/** Receive error detected */
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#define SMSC75XX_RX_RED 0x00400000UL
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/** Transmit packet header */
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struct smsc75xx_tx_header {
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/** TX command word */
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uint32_t command;
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/** VLAN tag */
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uint16_t tag;
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/** Maximum segment size */
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uint16_t mss;
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} __attribute__ (( packed ));
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/** Insert frame checksum and pad */
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#define SMSC75XX_TX_FCS 0x00400000UL
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/** Byte count statistics */
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struct smsc75xx_byte_statistics {
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/** Unicast byte count */
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uint32_t unicast;
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/** Broadcast byte count */
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uint32_t broadcast;
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/** Multicast byte count */
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uint32_t multicast;
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} __attribute__ (( packed ));
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/** Frame count statistics */
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struct smsc75xx_frame_statistics {
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/** Unicast frames */
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uint32_t unicast;
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/** Broadcast frames */
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uint32_t broadcast;
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/** Multicast frames */
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uint32_t multicast;
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/** Pause frames */
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uint32_t pause;
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/** Frames by length category */
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uint32_t len[7];
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} __attribute__ (( packed ));
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/** Receive error statistics */
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struct smsc75xx_rx_error_statistics {
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/** FCS errors */
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uint32_t fcs;
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/** Alignment errors */
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uint32_t alignment;
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/** Fragment errors */
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uint32_t fragment;
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/** Jabber errors */
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uint32_t jabber;
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/** Undersize frame errors */
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uint32_t undersize;
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/** Oversize frame errors */
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uint32_t oversize;
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/** Dropped frame errors */
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uint32_t dropped;
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} __attribute__ (( packed ));
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/** Receive statistics */
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struct smsc75xx_rx_statistics {
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/** Error statistics */
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struct smsc75xx_rx_error_statistics err;
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/** Byte count statistics */
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struct smsc75xx_byte_statistics byte;
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/** Frame count statistics */
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struct smsc75xx_frame_statistics frame;
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} __attribute__ (( packed ));
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/** Transmit error statistics */
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struct smsc75xx_tx_error_statistics {
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/** FCS errors */
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uint32_t fcs;
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/** Excess deferral errors */
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uint32_t deferral;
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/** Carrier errors */
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uint32_t carrier;
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/** Bad byte count */
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uint32_t count;
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/** Single collisions */
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uint32_t single;
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/** Multiple collisions */
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uint32_t multiple;
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/** Excession collisions */
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uint32_t excessive;
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/** Late collisions */
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uint32_t late;
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} __attribute__ (( packed ));
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/** Transmit statistics */
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struct smsc75xx_tx_statistics {
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/** Error statistics */
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struct smsc75xx_tx_error_statistics err;
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/** Byte count statistics */
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struct smsc75xx_byte_statistics byte;
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/** Frame count statistics */
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struct smsc75xx_frame_statistics frame;
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} __attribute__ (( packed ));
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/** Statistics */
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struct smsc75xx_statistics {
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/** Receive statistics */
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struct smsc75xx_rx_statistics rx;
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/** Transmit statistics */
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struct smsc75xx_tx_statistics tx;
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} __attribute__ (( packed ));
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/** Maximum time to wait for reset (in milliseconds) */
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#define SMSC75XX_RESET_MAX_WAIT_MS 100
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/** Bulk IN maximum fill level
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*
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* This is a policy decision.
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*/
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#define SMSC75XX_IN_MAX_FILL 8
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/** Bulk IN buffer size */
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#define SMSC75XX_IN_MTU \
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( sizeof ( struct smsc75xx_rx_header ) + \
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ETH_FRAME_LEN + 4 /* possible VLAN header */ )
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extern struct usb_endpoint_driver_operations smsc75xx_in_operations;
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extern int smsc75xx_dump_statistics ( struct smscusb_device *smscusb );
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extern int smsc75xx_transmit ( struct net_device *netdev,
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struct io_buffer *iobuf );
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extern void smsc75xx_poll ( struct net_device *netdev );
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#endif /* _SMSC75XX_H */
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