| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* $Id: sunhme.h,v 1.33 2001/08/03 06:23:04 davem Exp $ |
| * sunhme.h: Definitions for Sparc HME/BigMac 10/100baseT ethernet driver. |
| * Also known as the "Happy Meal". |
| * |
| * Copyright (C) 1996, 1999 David S. Miller (davem@redhat.com) |
| */ |
| |
| #ifndef _SUNHME_H |
| #define _SUNHME_H |
| |
| #include <linux/pci.h> |
| |
| /* Happy Meal global registers. */ |
| #define GREG_SWRESET 0x000UL /* Software Reset */ |
| #define GREG_CFG 0x004UL /* Config Register */ |
| #define GREG_STAT 0x100UL /* Status */ |
| #define GREG_IMASK 0x104UL /* Interrupt Mask */ |
| #define GREG_REG_SIZE 0x108UL |
| |
| /* Global reset register. */ |
| #define GREG_RESET_ETX 0x01 |
| #define GREG_RESET_ERX 0x02 |
| #define GREG_RESET_ALL 0x03 |
| |
| /* Global config register. */ |
| #define GREG_CFG_BURSTMSK 0x03 |
| #define GREG_CFG_BURST16 0x00 |
| #define GREG_CFG_BURST32 0x01 |
| #define GREG_CFG_BURST64 0x02 |
| #define GREG_CFG_64BIT 0x04 |
| #define GREG_CFG_PARITY 0x08 |
| #define GREG_CFG_RESV 0x10 |
| |
| /* Global status register. */ |
| #define GREG_STAT_GOTFRAME 0x00000001 /* Received a frame */ |
| #define GREG_STAT_RCNTEXP 0x00000002 /* Receive frame counter expired */ |
| #define GREG_STAT_ACNTEXP 0x00000004 /* Align-error counter expired */ |
| #define GREG_STAT_CCNTEXP 0x00000008 /* CRC-error counter expired */ |
| #define GREG_STAT_LCNTEXP 0x00000010 /* Length-error counter expired */ |
| #define GREG_STAT_RFIFOVF 0x00000020 /* Receive FIFO overflow */ |
| #define GREG_STAT_CVCNTEXP 0x00000040 /* Code-violation counter expired */ |
| #define GREG_STAT_STSTERR 0x00000080 /* Test error in XIF for SQE */ |
| #define GREG_STAT_SENTFRAME 0x00000100 /* Transmitted a frame */ |
| #define GREG_STAT_TFIFO_UND 0x00000200 /* Transmit FIFO underrun */ |
| #define GREG_STAT_MAXPKTERR 0x00000400 /* Max-packet size error */ |
| #define GREG_STAT_NCNTEXP 0x00000800 /* Normal-collision counter expired */ |
| #define GREG_STAT_ECNTEXP 0x00001000 /* Excess-collision counter expired */ |
| #define GREG_STAT_LCCNTEXP 0x00002000 /* Late-collision counter expired */ |
| #define GREG_STAT_FCNTEXP 0x00004000 /* First-collision counter expired */ |
| #define GREG_STAT_DTIMEXP 0x00008000 /* Defer-timer expired */ |
| #define GREG_STAT_RXTOHOST 0x00010000 /* Moved from receive-FIFO to host memory */ |
| #define GREG_STAT_NORXD 0x00020000 /* No more receive descriptors */ |
| #define GREG_STAT_RXERR 0x00040000 /* Error during receive dma */ |
| #define GREG_STAT_RXLATERR 0x00080000 /* Late error during receive dma */ |
| #define GREG_STAT_RXPERR 0x00100000 /* Parity error during receive dma */ |
| #define GREG_STAT_RXTERR 0x00200000 /* Tag error during receive dma */ |
| #define GREG_STAT_EOPERR 0x00400000 /* Transmit descriptor did not have EOP set */ |
| #define GREG_STAT_MIFIRQ 0x00800000 /* MIF is signaling an interrupt condition */ |
| #define GREG_STAT_HOSTTOTX 0x01000000 /* Moved from host memory to transmit-FIFO */ |
| #define GREG_STAT_TXALL 0x02000000 /* Transmitted all packets in the tx-fifo */ |
| #define GREG_STAT_TXEACK 0x04000000 /* Error during transmit dma */ |
| #define GREG_STAT_TXLERR 0x08000000 /* Late error during transmit dma */ |
| #define GREG_STAT_TXPERR 0x10000000 /* Parity error during transmit dma */ |
| #define GREG_STAT_TXTERR 0x20000000 /* Tag error during transmit dma */ |
| #define GREG_STAT_SLVERR 0x40000000 /* PIO access got an error */ |
| #define GREG_STAT_SLVPERR 0x80000000 /* PIO access got a parity error */ |
| |
| /* All interesting error conditions. */ |
| #define GREG_STAT_ERRORS 0xfc7efefc |
| |
| /* Global interrupt mask register. */ |
| #define GREG_IMASK_GOTFRAME 0x00000001 /* Received a frame */ |
| #define GREG_IMASK_RCNTEXP 0x00000002 /* Receive frame counter expired */ |
| #define GREG_IMASK_ACNTEXP 0x00000004 /* Align-error counter expired */ |
| #define GREG_IMASK_CCNTEXP 0x00000008 /* CRC-error counter expired */ |
| #define GREG_IMASK_LCNTEXP 0x00000010 /* Length-error counter expired */ |
| #define GREG_IMASK_RFIFOVF 0x00000020 /* Receive FIFO overflow */ |
| #define GREG_IMASK_CVCNTEXP 0x00000040 /* Code-violation counter expired */ |
| #define GREG_IMASK_STSTERR 0x00000080 /* Test error in XIF for SQE */ |
| #define GREG_IMASK_SENTFRAME 0x00000100 /* Transmitted a frame */ |
| #define GREG_IMASK_TFIFO_UND 0x00000200 /* Transmit FIFO underrun */ |
| #define GREG_IMASK_MAXPKTERR 0x00000400 /* Max-packet size error */ |
| #define GREG_IMASK_NCNTEXP 0x00000800 /* Normal-collision counter expired */ |
| #define GREG_IMASK_ECNTEXP 0x00001000 /* Excess-collision counter expired */ |
| #define GREG_IMASK_LCCNTEXP 0x00002000 /* Late-collision counter expired */ |
| #define GREG_IMASK_FCNTEXP 0x00004000 /* First-collision counter expired */ |
| #define GREG_IMASK_DTIMEXP 0x00008000 /* Defer-timer expired */ |
| #define GREG_IMASK_RXTOHOST 0x00010000 /* Moved from receive-FIFO to host memory */ |
| #define GREG_IMASK_NORXD 0x00020000 /* No more receive descriptors */ |
| #define GREG_IMASK_RXERR 0x00040000 /* Error during receive dma */ |
| #define GREG_IMASK_RXLATERR 0x00080000 /* Late error during receive dma */ |
| #define GREG_IMASK_RXPERR 0x00100000 /* Parity error during receive dma */ |
| #define GREG_IMASK_RXTERR 0x00200000 /* Tag error during receive dma */ |
| #define GREG_IMASK_EOPERR 0x00400000 /* Transmit descriptor did not have EOP set */ |
| #define GREG_IMASK_MIFIRQ 0x00800000 /* MIF is signaling an interrupt condition */ |
| #define GREG_IMASK_HOSTTOTX 0x01000000 /* Moved from host memory to transmit-FIFO */ |
| #define GREG_IMASK_TXALL 0x02000000 /* Transmitted all packets in the tx-fifo */ |
| #define GREG_IMASK_TXEACK 0x04000000 /* Error during transmit dma */ |
| #define GREG_IMASK_TXLERR 0x08000000 /* Late error during transmit dma */ |
| #define GREG_IMASK_TXPERR 0x10000000 /* Parity error during transmit dma */ |
| #define GREG_IMASK_TXTERR 0x20000000 /* Tag error during transmit dma */ |
| #define GREG_IMASK_SLVERR 0x40000000 /* PIO access got an error */ |
| #define GREG_IMASK_SLVPERR 0x80000000 /* PIO access got a parity error */ |
| |
| /* Happy Meal external transmitter registers. */ |
| #define ETX_PENDING 0x00UL /* Transmit pending/wakeup register */ |
| #define ETX_CFG 0x04UL /* Transmit config register */ |
| #define ETX_RING 0x08UL /* Transmit ring pointer */ |
| #define ETX_BBASE 0x0cUL /* Transmit buffer base */ |
| #define ETX_BDISP 0x10UL /* Transmit buffer displacement */ |
| #define ETX_FIFOWPTR 0x14UL /* FIFO write ptr */ |
| #define ETX_FIFOSWPTR 0x18UL /* FIFO write ptr (shadow register) */ |
| #define ETX_FIFORPTR 0x1cUL /* FIFO read ptr */ |
| #define ETX_FIFOSRPTR 0x20UL /* FIFO read ptr (shadow register) */ |
| #define ETX_FIFOPCNT 0x24UL /* FIFO packet counter */ |
| #define ETX_SMACHINE 0x28UL /* Transmitter state machine */ |
| #define ETX_RSIZE 0x2cUL /* Ring descriptor size */ |
| #define ETX_BPTR 0x30UL /* Transmit data buffer ptr */ |
| #define ETX_REG_SIZE 0x34UL |
| |
| /* ETX transmit pending register. */ |
| #define ETX_TP_DMAWAKEUP 0x00000001 /* Restart transmit dma */ |
| |
| /* ETX config register. */ |
| #define ETX_CFG_DMAENABLE 0x00000001 /* Enable transmit dma */ |
| #define ETX_CFG_FIFOTHRESH 0x000003fe /* Transmit FIFO threshold */ |
| #define ETX_CFG_IRQDAFTER 0x00000400 /* Interrupt after TX-FIFO drained */ |
| #define ETX_CFG_IRQDBEFORE 0x00000000 /* Interrupt before TX-FIFO drained */ |
| |
| #define ETX_RSIZE_SHIFT 4 |
| |
| /* Happy Meal external receiver registers. */ |
| #define ERX_CFG 0x00UL /* Receiver config register */ |
| #define ERX_RING 0x04UL /* Receiver ring ptr */ |
| #define ERX_BPTR 0x08UL /* Receiver buffer ptr */ |
| #define ERX_FIFOWPTR 0x0cUL /* FIFO write ptr */ |
| #define ERX_FIFOSWPTR 0x10UL /* FIFO write ptr (shadow register) */ |
| #define ERX_FIFORPTR 0x14UL /* FIFO read ptr */ |
| #define ERX_FIFOSRPTR 0x18UL /* FIFO read ptr (shadow register) */ |
| #define ERX_SMACHINE 0x1cUL /* Receiver state machine */ |
| #define ERX_REG_SIZE 0x20UL |
| |
| /* ERX config register. */ |
| #define ERX_CFG_DMAENABLE 0x00000001 /* Enable receive DMA */ |
| #define ERX_CFG_RESV1 0x00000006 /* Unused... */ |
| #define ERX_CFG_BYTEOFFSET 0x00000038 /* Receive first byte offset */ |
| #define ERX_CFG_RESV2 0x000001c0 /* Unused... */ |
| #define ERX_CFG_SIZE32 0x00000000 /* Receive ring size == 32 */ |
| #define ERX_CFG_SIZE64 0x00000200 /* Receive ring size == 64 */ |
| #define ERX_CFG_SIZE128 0x00000400 /* Receive ring size == 128 */ |
| #define ERX_CFG_SIZE256 0x00000600 /* Receive ring size == 256 */ |
| #define ERX_CFG_RESV3 0x0000f800 /* Unused... */ |
| #define ERX_CFG_CSUMSTART 0x007f0000 /* Offset of checksum start, |
| * in halfwords. */ |
| |
| /* I'd like a Big Mac, small fries, small coke, and SparcLinux please. */ |
| #define BMAC_XIFCFG 0x0000UL /* XIF config register */ |
| /* 0x4-->0x204, reserved */ |
| #define BMAC_TXSWRESET 0x208UL /* Transmitter software reset */ |
| #define BMAC_TXCFG 0x20cUL /* Transmitter config register */ |
| #define BMAC_IGAP1 0x210UL /* Inter-packet gap 1 */ |
| #define BMAC_IGAP2 0x214UL /* Inter-packet gap 2 */ |
| #define BMAC_ALIMIT 0x218UL /* Transmit attempt limit */ |
| #define BMAC_STIME 0x21cUL /* Transmit slot time */ |
| #define BMAC_PLEN 0x220UL /* Size of transmit preamble */ |
| #define BMAC_PPAT 0x224UL /* Pattern for transmit preamble */ |
| #define BMAC_TXSDELIM 0x228UL /* Transmit delimiter */ |
| #define BMAC_JSIZE 0x22cUL /* Jam size */ |
| #define BMAC_TXMAX 0x230UL /* Transmit max pkt size */ |
| #define BMAC_TXMIN 0x234UL /* Transmit min pkt size */ |
| #define BMAC_PATTEMPT 0x238UL /* Count of transmit peak attempts */ |
| #define BMAC_DTCTR 0x23cUL /* Transmit defer timer */ |
| #define BMAC_NCCTR 0x240UL /* Transmit normal-collision counter */ |
| #define BMAC_FCCTR 0x244UL /* Transmit first-collision counter */ |
| #define BMAC_EXCTR 0x248UL /* Transmit excess-collision counter */ |
| #define BMAC_LTCTR 0x24cUL /* Transmit late-collision counter */ |
| #define BMAC_RSEED 0x250UL /* Transmit random number seed */ |
| #define BMAC_TXSMACHINE 0x254UL /* Transmit state machine */ |
| /* 0x258-->0x304, reserved */ |
| #define BMAC_RXSWRESET 0x308UL /* Receiver software reset */ |
| #define BMAC_RXCFG 0x30cUL /* Receiver config register */ |
| #define BMAC_RXMAX 0x310UL /* Receive max pkt size */ |
| #define BMAC_RXMIN 0x314UL /* Receive min pkt size */ |
| #define BMAC_MACADDR2 0x318UL /* Ether address register 2 */ |
| #define BMAC_MACADDR1 0x31cUL /* Ether address register 1 */ |
| #define BMAC_MACADDR0 0x320UL /* Ether address register 0 */ |
| #define BMAC_FRCTR 0x324UL /* Receive frame receive counter */ |
| #define BMAC_GLECTR 0x328UL /* Receive giant-length error counter */ |
| #define BMAC_UNALECTR 0x32cUL /* Receive unaligned error counter */ |
| #define BMAC_RCRCECTR 0x330UL /* Receive CRC error counter */ |
| #define BMAC_RXSMACHINE 0x334UL /* Receiver state machine */ |
| #define BMAC_RXCVALID 0x338UL /* Receiver code violation */ |
| /* 0x33c, reserved */ |
| #define BMAC_HTABLE3 0x340UL /* Hash table 3 */ |
| #define BMAC_HTABLE2 0x344UL /* Hash table 2 */ |
| #define BMAC_HTABLE1 0x348UL /* Hash table 1 */ |
| #define BMAC_HTABLE0 0x34cUL /* Hash table 0 */ |
| #define BMAC_AFILTER2 0x350UL /* Address filter 2 */ |
| #define BMAC_AFILTER1 0x354UL /* Address filter 1 */ |
| #define BMAC_AFILTER0 0x358UL /* Address filter 0 */ |
| #define BMAC_AFMASK 0x35cUL /* Address filter mask */ |
| #define BMAC_REG_SIZE 0x360UL |
| |
| /* BigMac XIF config register. */ |
| #define BIGMAC_XCFG_ODENABLE 0x00000001 /* Output driver enable */ |
| #define BIGMAC_XCFG_XLBACK 0x00000002 /* Loopback-mode XIF enable */ |
| #define BIGMAC_XCFG_MLBACK 0x00000004 /* Loopback-mode MII enable */ |
| #define BIGMAC_XCFG_MIIDISAB 0x00000008 /* MII receive buffer disable */ |
| #define BIGMAC_XCFG_SQENABLE 0x00000010 /* SQE test enable */ |
| #define BIGMAC_XCFG_SQETWIN 0x000003e0 /* SQE time window */ |
| #define BIGMAC_XCFG_LANCE 0x00000010 /* Lance mode enable */ |
| #define BIGMAC_XCFG_LIPG0 0x000003e0 /* Lance mode IPG0 */ |
| |
| /* BigMac transmit config register. */ |
| #define BIGMAC_TXCFG_ENABLE 0x00000001 /* Enable the transmitter */ |
| #define BIGMAC_TXCFG_SMODE 0x00000020 /* Enable slow transmit mode */ |
| #define BIGMAC_TXCFG_CIGN 0x00000040 /* Ignore transmit collisions */ |
| #define BIGMAC_TXCFG_FCSOFF 0x00000080 /* Do not emit FCS */ |
| #define BIGMAC_TXCFG_DBACKOFF 0x00000100 /* Disable backoff */ |
| #define BIGMAC_TXCFG_FULLDPLX 0x00000200 /* Enable full-duplex */ |
| #define BIGMAC_TXCFG_DGIVEUP 0x00000400 /* Don't give up on transmits */ |
| |
| /* BigMac receive config register. */ |
| #define BIGMAC_RXCFG_ENABLE 0x00000001 /* Enable the receiver */ |
| #define BIGMAC_RXCFG_PSTRIP 0x00000020 /* Pad byte strip enable */ |
| #define BIGMAC_RXCFG_PMISC 0x00000040 /* Enable promiscuous mode */ |
| #define BIGMAC_RXCFG_DERR 0x00000080 /* Disable error checking */ |
| #define BIGMAC_RXCFG_DCRCS 0x00000100 /* Disable CRC stripping */ |
| #define BIGMAC_RXCFG_REJME 0x00000200 /* Reject packets addressed to me */ |
| #define BIGMAC_RXCFG_PGRP 0x00000400 /* Enable promisc group mode */ |
| #define BIGMAC_RXCFG_HENABLE 0x00000800 /* Enable the hash filter */ |
| #define BIGMAC_RXCFG_AENABLE 0x00001000 /* Enable the address filter */ |
| |
| /* These are the "Management Interface" (ie. MIF) registers of the transceiver. */ |
| #define TCVR_BBCLOCK 0x00UL /* Bit bang clock register */ |
| #define TCVR_BBDATA 0x04UL /* Bit bang data register */ |
| #define TCVR_BBOENAB 0x08UL /* Bit bang output enable */ |
| #define TCVR_FRAME 0x0cUL /* Frame control/data register */ |
| #define TCVR_CFG 0x10UL /* MIF config register */ |
| #define TCVR_IMASK 0x14UL /* MIF interrupt mask */ |
| #define TCVR_STATUS 0x18UL /* MIF status */ |
| #define TCVR_SMACHINE 0x1cUL /* MIF state machine */ |
| #define TCVR_REG_SIZE 0x20UL |
| |
| /* Frame commands. */ |
| #define FRAME_WRITE 0x50020000 |
| #define FRAME_READ 0x60020000 |
| |
| /* Transceiver config register */ |
| #define TCV_CFG_PSELECT 0x00000001 /* Select PHY */ |
| #define TCV_CFG_PENABLE 0x00000002 /* Enable MIF polling */ |
| #define TCV_CFG_BENABLE 0x00000004 /* Enable the "bit banger" oh baby */ |
| #define TCV_CFG_PREGADDR 0x000000f8 /* Address of poll register */ |
| #define TCV_CFG_MDIO0 0x00000100 /* MDIO zero, data/attached */ |
| #define TCV_CFG_MDIO1 0x00000200 /* MDIO one, data/attached */ |
| #define TCV_CFG_PDADDR 0x00007c00 /* Device PHY address polling */ |
| |
| /* Here are some PHY addresses. */ |
| #define TCV_PADDR_ETX 0 /* Internal transceiver */ |
| #define TCV_PADDR_ITX 1 /* External transceiver */ |
| |
| /* Transceiver status register */ |
| #define TCV_STAT_BASIC 0xffff0000 /* The "basic" part */ |
| #define TCV_STAT_NORMAL 0x0000ffff /* The "non-basic" part */ |
| |
| /* Inside the Happy Meal transceiver is the physical layer, they use an |
| * implementations for National Semiconductor, part number DP83840VCE. |
| * You can retrieve the data sheets and programming docs for this beast |
| * from http://www.national.com/ |
| * |
| * The DP83840 is capable of both 10 and 100Mbps ethernet, in both |
| * half and full duplex mode. It also supports auto negotiation. |
| * |
| * But.... THIS THING IS A PAIN IN THE ASS TO PROGRAM! |
| * Debugging eeprom burnt code is more fun than programming this chip! |
| */ |
| |
| /* Generic MII registers defined in linux/mii.h, these below |
| * are DP83840 specific. |
| */ |
| #define DP83840_CSCONFIG 0x17 /* CS configuration */ |
| |
| /* The Carrier Sense config register. */ |
| #define CSCONFIG_RESV1 0x0001 /* Unused... */ |
| #define CSCONFIG_LED4 0x0002 /* Pin for full-dplx LED4 */ |
| #define CSCONFIG_LED1 0x0004 /* Pin for conn-status LED1 */ |
| #define CSCONFIG_RESV2 0x0008 /* Unused... */ |
| #define CSCONFIG_TCVDISAB 0x0010 /* Turns off the transceiver */ |
| #define CSCONFIG_DFBYPASS 0x0020 /* Bypass disconnect function */ |
| #define CSCONFIG_GLFORCE 0x0040 /* Good link force for 100mbps */ |
| #define CSCONFIG_CLKTRISTATE 0x0080 /* Tristate 25m clock */ |
| #define CSCONFIG_RESV3 0x0700 /* Unused... */ |
| #define CSCONFIG_ENCODE 0x0800 /* 1=MLT-3, 0=binary */ |
| #define CSCONFIG_RENABLE 0x1000 /* Repeater mode enable */ |
| #define CSCONFIG_TCDISABLE 0x2000 /* Disable timeout counter */ |
| #define CSCONFIG_RESV4 0x4000 /* Unused... */ |
| #define CSCONFIG_NDISABLE 0x8000 /* Disable NRZI */ |
| |
| /* Happy Meal descriptor rings and such. |
| * All descriptor rings must be aligned on a 2K boundary. |
| * All receive buffers must be 64 byte aligned. |
| * Always write the address first before setting the ownership |
| * bits to avoid races with the hardware scanning the ring. |
| */ |
| typedef u32 __bitwise hme32; |
| |
| struct happy_meal_rxd { |
| hme32 rx_flags; |
| hme32 rx_addr; |
| }; |
| |
| #define RXFLAG_OWN 0x80000000 /* 1 = hardware, 0 = software */ |
| #define RXFLAG_OVERFLOW 0x40000000 /* 1 = buffer overflow */ |
| #define RXFLAG_SIZE 0x3fff0000 /* Size of the buffer */ |
| #define RXFLAG_CSUM 0x0000ffff /* HW computed checksum */ |
| |
| struct happy_meal_txd { |
| hme32 tx_flags; |
| hme32 tx_addr; |
| }; |
| |
| #define TXFLAG_OWN 0x80000000 /* 1 = hardware, 0 = software */ |
| #define TXFLAG_SOP 0x40000000 /* 1 = start of packet */ |
| #define TXFLAG_EOP 0x20000000 /* 1 = end of packet */ |
| #define TXFLAG_CSENABLE 0x10000000 /* 1 = enable hw-checksums */ |
| #define TXFLAG_CSLOCATION 0x0ff00000 /* Where to stick the csum */ |
| #define TXFLAG_CSBUFBEGIN 0x000fc000 /* Where to begin checksum */ |
| #define TXFLAG_SIZE 0x00003fff /* Size of the packet */ |
| |
| #define TX_RING_SIZE 32 /* Must be >16 and <255, multiple of 16 */ |
| #define RX_RING_SIZE 32 /* see ERX_CFG_SIZE* for possible values */ |
| |
| #if (TX_RING_SIZE < 16 || TX_RING_SIZE > 256 || (TX_RING_SIZE % 16) != 0) |
| #error TX_RING_SIZE holds illegal value |
| #endif |
| |
| #define TX_RING_MAXSIZE 256 |
| #define RX_RING_MAXSIZE 256 |
| |
| /* We use a 14 byte offset for checksum computation. */ |
| #if (RX_RING_SIZE == 32) |
| #define ERX_CFG_DEFAULT(off) (ERX_CFG_DMAENABLE|((off)<<3)|ERX_CFG_SIZE32|((14/2)<<16)) |
| #else |
| #if (RX_RING_SIZE == 64) |
| #define ERX_CFG_DEFAULT(off) (ERX_CFG_DMAENABLE|((off)<<3)|ERX_CFG_SIZE64|((14/2)<<16)) |
| #else |
| #if (RX_RING_SIZE == 128) |
| #define ERX_CFG_DEFAULT(off) (ERX_CFG_DMAENABLE|((off)<<3)|ERX_CFG_SIZE128|((14/2)<<16)) |
| #else |
| #if (RX_RING_SIZE == 256) |
| #define ERX_CFG_DEFAULT(off) (ERX_CFG_DMAENABLE|((off)<<3)|ERX_CFG_SIZE256|((14/2)<<16)) |
| #else |
| #error RX_RING_SIZE holds illegal value |
| #endif |
| #endif |
| #endif |
| #endif |
| |
| #define NEXT_RX(num) (((num) + 1) & (RX_RING_SIZE - 1)) |
| #define NEXT_TX(num) (((num) + 1) & (TX_RING_SIZE - 1)) |
| #define PREV_RX(num) (((num) - 1) & (RX_RING_SIZE - 1)) |
| #define PREV_TX(num) (((num) - 1) & (TX_RING_SIZE - 1)) |
| |
| #define TX_BUFFS_AVAIL(hp) \ |
| (((hp)->tx_old <= (hp)->tx_new) ? \ |
| (hp)->tx_old + (TX_RING_SIZE - 1) - (hp)->tx_new : \ |
| (hp)->tx_old - (hp)->tx_new - 1) |
| |
| #define RX_OFFSET 2 |
| #define RX_BUF_ALLOC_SIZE (1546 + RX_OFFSET + 64) |
| |
| #define RX_COPY_THRESHOLD 256 |
| |
| struct hmeal_init_block { |
| struct happy_meal_rxd happy_meal_rxd[RX_RING_MAXSIZE]; |
| struct happy_meal_txd happy_meal_txd[TX_RING_MAXSIZE]; |
| }; |
| |
| #define hblock_offset(mem, elem) \ |
| ((__u32)((unsigned long)(&(((struct hmeal_init_block *)0)->mem[elem])))) |
| |
| /* Now software state stuff. */ |
| enum happy_transceiver { |
| external = 0, |
| internal = 1, |
| none = 2, |
| }; |
| |
| /* Timer state engine. */ |
| enum happy_timer_state { |
| arbwait = 0, /* Waiting for auto negotiation to complete. */ |
| lupwait = 1, /* Auto-neg complete, awaiting link-up status. */ |
| ltrywait = 2, /* Forcing try of all modes, from fastest to slowest. */ |
| asleep = 3, /* Time inactive. */ |
| }; |
| |
| struct quattro; |
| |
| /* Happy happy, joy joy! */ |
| struct happy_meal { |
| void __iomem *gregs; /* Happy meal global registers */ |
| struct hmeal_init_block *happy_block; /* RX and TX descriptors (CPU addr) */ |
| |
| #if defined(CONFIG_SBUS) && defined(CONFIG_PCI) |
| u32 (*read_desc32)(hme32 *); |
| void (*write_txd)(struct happy_meal_txd *, u32, u32); |
| void (*write_rxd)(struct happy_meal_rxd *, u32, u32); |
| #endif |
| |
| /* This is either an platform_device or a pci_dev. */ |
| void *happy_dev; |
| struct device *dma_dev; |
| |
| spinlock_t happy_lock; |
| |
| struct sk_buff *rx_skbs[RX_RING_SIZE]; |
| struct sk_buff *tx_skbs[TX_RING_SIZE]; |
| |
| int rx_new, tx_new, rx_old, tx_old; |
| |
| #if defined(CONFIG_SBUS) && defined(CONFIG_PCI) |
| u32 (*read32)(void __iomem *); |
| void (*write32)(void __iomem *, u32); |
| #endif |
| |
| void __iomem *etxregs; /* External transmitter regs */ |
| void __iomem *erxregs; /* External receiver regs */ |
| void __iomem *bigmacregs; /* BIGMAC core regs */ |
| void __iomem *tcvregs; /* MIF transceiver regs */ |
| |
| dma_addr_t hblock_dvma; /* DVMA visible address happy block */ |
| unsigned int happy_flags; /* Driver state flags */ |
| int irq; |
| enum happy_transceiver tcvr_type; /* Kind of transceiver in use */ |
| unsigned int happy_bursts; /* Get your mind out of the gutter */ |
| unsigned int paddr; /* PHY address for transceiver */ |
| unsigned short hm_revision; /* Happy meal revision */ |
| unsigned short sw_bmcr; /* SW copy of BMCR */ |
| unsigned short sw_bmsr; /* SW copy of BMSR */ |
| unsigned short sw_physid1; /* SW copy of PHYSID1 */ |
| unsigned short sw_physid2; /* SW copy of PHYSID2 */ |
| unsigned short sw_advertise; /* SW copy of ADVERTISE */ |
| unsigned short sw_lpa; /* SW copy of LPA */ |
| unsigned short sw_expansion; /* SW copy of EXPANSION */ |
| unsigned short sw_csconfig; /* SW copy of CSCONFIG */ |
| unsigned int auto_speed; /* Auto-nego link speed */ |
| unsigned int forced_speed; /* Force mode link speed */ |
| unsigned int poll_data; /* MIF poll data */ |
| unsigned int poll_flag; /* MIF poll flag */ |
| unsigned int linkcheck; /* Have we checked the link yet? */ |
| unsigned int lnkup; /* Is the link up as far as we know? */ |
| unsigned int lnkdown; /* Trying to force the link down? */ |
| unsigned int lnkcnt; /* Counter for link-up attempts. */ |
| struct timer_list happy_timer; /* To watch the link when coming up. */ |
| enum happy_timer_state timer_state; /* State of the auto-neg timer. */ |
| unsigned int timer_ticks; /* Number of clicks at each state. */ |
| |
| struct net_device *dev; /* Backpointer */ |
| struct quattro *qfe_parent; /* For Quattro cards */ |
| int qfe_ent; /* Which instance on quattro */ |
| }; |
| |
| /* Here are the happy flags. */ |
| #define HFLAG_FENABLE 0x00000002 /* The MII frame is enabled */ |
| #define HFLAG_LANCE 0x00000004 /* We are using lance-mode */ |
| #define HFLAG_RXENABLE 0x00000008 /* Receiver is enabled */ |
| #define HFLAG_AUTO 0x00000010 /* Using auto-negotiation, 0 = force */ |
| #define HFLAG_FULL 0x00000020 /* Full duplex enable */ |
| #define HFLAG_MACFULL 0x00000040 /* Using full duplex in the MAC */ |
| #define HFLAG_RXCV 0x00000100 /* XXX RXCV ENABLE */ |
| #define HFLAG_INIT 0x00000200 /* Init called at least once */ |
| #define HFLAG_LINKUP 0x00000400 /* 1 = Link is up */ |
| #define HFLAG_PCI 0x00000800 /* PCI based Happy Meal */ |
| #define HFLAG_QUATTRO 0x00001000 /* On QFE/Quattro card */ |
| |
| #define HFLAG_20_21 HFLAG_FENABLE |
| #define HFLAG_NOT_A0 (HFLAG_FENABLE | HFLAG_LANCE | HFLAG_RXCV) |
| |
| /* Support for QFE/Quattro cards. */ |
| struct quattro { |
| struct net_device *happy_meals[4]; |
| |
| /* This is either a sbus_dev or a pci_dev. */ |
| void *quattro_dev; |
| |
| struct quattro *next; |
| |
| /* PROM ranges, if any. */ |
| #ifdef CONFIG_SBUS |
| struct linux_prom_ranges ranges[8]; |
| #endif |
| int nranges; |
| }; |
| |
| /* We use this to acquire receive skb's that we can DMA directly into. */ |
| #define ALIGNED_RX_SKB_ADDR(addr) \ |
| ((((unsigned long)(addr) + (64UL - 1UL)) & ~(64UL - 1UL)) - (unsigned long)(addr)) |
| #define happy_meal_alloc_skb(__length, __gfp_flags) \ |
| ({ struct sk_buff *__skb; \ |
| __skb = alloc_skb((__length) + 64, (__gfp_flags)); \ |
| if(__skb) { \ |
| int __offset = (int) ALIGNED_RX_SKB_ADDR(__skb->data); \ |
| if(__offset) \ |
| skb_reserve(__skb, __offset); \ |
| } \ |
| __skb; \ |
| }) |
| |
| #endif /* !(_SUNHME_H) */ |
