diff options
Diffstat (limited to 'drivers/net/ibmlana.h')
| -rw-r--r-- | drivers/net/ibmlana.h | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/drivers/net/ibmlana.h b/drivers/net/ibmlana.h new file mode 100644 index 00000000000..458ee226e53 --- /dev/null +++ b/drivers/net/ibmlana.h @@ -0,0 +1,279 @@ +#ifndef _IBM_LANA_INCLUDE_ +#define _IBM_LANA_INCLUDE_ + +#ifdef _IBM_LANA_DRIVER_ + +/* maximum packet size */ + +#define PKTSIZE 1524 + +/* number of transmit buffers */ + +#define TXBUFCNT 4 + +/* Adapter ID's */ +#define IBM_LANA_ID 0xffe0 + +/* media enumeration - defined in a way that it fits onto the LAN/A's + POS registers... */ + +typedef enum { + Media_10BaseT, Media_10Base5, + Media_Unknown, Media_10Base2, Media_Count +} ibmlana_medium; + +/* private structure */ + +typedef struct { + unsigned int slot; /* MCA-Slot-# */ + struct net_device_stats stat; /* packet statistics */ + int realirq; /* memorizes actual IRQ, even when + currently not allocated */ + ibmlana_medium medium; /* physical cannector */ + u32 tdastart, txbufstart, /* addresses */ + rrastart, rxbufstart, rdastart, rxbufcnt, txusedcnt; + int nextrxdescr, /* next rx descriptor to be used */ + lastrxdescr, /* last free rx descriptor */ + nexttxdescr, /* last tx descriptor to be used */ + currtxdescr, /* tx descriptor currently tx'ed */ + txused[TXBUFCNT]; /* busy flags */ + void __iomem *base; + spinlock_t lock; +} ibmlana_priv; + +/* this card uses quite a lot of I/O ports...luckily the MCA bus decodes + a full 64K I/O range... */ + +#define IBM_LANA_IORANGE 0xa0 + +/* Command Register: */ + +#define SONIC_CMDREG 0x00 +#define CMDREG_HTX 0x0001 /* halt transmission */ +#define CMDREG_TXP 0x0002 /* start transmission */ +#define CMDREG_RXDIS 0x0004 /* disable receiver */ +#define CMDREG_RXEN 0x0008 /* enable receiver */ +#define CMDREG_STP 0x0010 /* stop timer */ +#define CMDREG_ST 0x0020 /* start timer */ +#define CMDREG_RST 0x0080 /* software reset */ +#define CMDREG_RRRA 0x0100 /* force SONIC to read first RRA */ +#define CMDREG_LCAM 0x0200 /* force SONIC to read CAM descrs */ + +/* Data Configuration Register */ + +#define SONIC_DCREG 0x02 +#define DCREG_EXBUS 0x8000 /* Extended Bus Mode */ +#define DCREG_LBR 0x2000 /* Latched Bus Retry */ +#define DCREG_PO1 0x1000 /* Programmable Outputs */ +#define DCREG_PO0 0x0800 +#define DCREG_SBUS 0x0400 /* Synchronous Bus Mode */ +#define DCREG_USR1 0x0200 /* User Definable Pins */ +#define DCREG_USR0 0x0100 +#define DCREG_WC0 0x0000 /* 0..3 Wait States */ +#define DCREG_WC1 0x0040 +#define DCREG_WC2 0x0080 +#define DCREG_WC3 0x00c0 +#define DCREG_DW16 0x0000 /* 16 bit Bus Mode */ +#define DCREG_DW32 0x0020 /* 32 bit Bus Mode */ +#define DCREG_BMS 0x0010 /* Block Mode Select */ +#define DCREG_RFT4 0x0000 /* 4/8/16/24 bytes RX Threshold */ +#define DCREG_RFT8 0x0004 +#define DCREG_RFT16 0x0008 +#define DCREG_RFT24 0x000c +#define DCREG_TFT8 0x0000 /* 8/16/24/28 bytes TX Threshold */ +#define DCREG_TFT16 0x0001 +#define DCREG_TFT24 0x0002 +#define DCREG_TFT28 0x0003 + +/* Receive Control Register */ + +#define SONIC_RCREG 0x04 +#define RCREG_ERR 0x8000 /* accept damaged and collided pkts */ +#define RCREG_RNT 0x4000 /* accept packets that are < 64 */ +#define RCREG_BRD 0x2000 /* accept broadcasts */ +#define RCREG_PRO 0x1000 /* promiscous mode */ +#define RCREG_AMC 0x0800 /* accept all multicasts */ +#define RCREG_LB_NONE 0x0000 /* no loopback */ +#define RCREG_LB_MAC 0x0200 /* MAC loopback */ +#define RCREG_LB_ENDEC 0x0400 /* ENDEC loopback */ +#define RCREG_LB_XVR 0x0600 /* Transceiver loopback */ +#define RCREG_MC 0x0100 /* Multicast received */ +#define RCREG_BC 0x0080 /* Broadcast received */ +#define RCREG_LPKT 0x0040 /* last packet in RBA */ +#define RCREG_CRS 0x0020 /* carrier sense present */ +#define RCREG_COL 0x0010 /* recv'd packet with collision */ +#define RCREG_CRCR 0x0008 /* recv'd packet with CRC error */ +#define RCREG_FAER 0x0004 /* recv'd packet with inv. framing */ +#define RCREG_LBK 0x0002 /* recv'd loopback packet */ +#define RCREG_PRX 0x0001 /* recv'd packet is OK */ + +/* Transmit Control Register */ + +#define SONIC_TCREG 0x06 +#define TCREG_PINT 0x8000 /* generate interrupt after TDA read */ +#define TCREG_POWC 0x4000 /* timer start out of window detect */ +#define TCREG_CRCI 0x2000 /* inhibit CRC generation */ +#define TCREG_EXDIS 0x1000 /* disable excessive deferral timer */ +#define TCREG_EXD 0x0400 /* excessive deferral occurred */ +#define TCREG_DEF 0x0200 /* single deferral occurred */ +#define TCREG_NCRS 0x0100 /* no carrier detected */ +#define TCREG_CRSL 0x0080 /* carrier lost */ +#define TCREG_EXC 0x0040 /* excessive collisions occurred */ +#define TCREG_OWC 0x0020 /* out of window collision occurred */ +#define TCREG_PMB 0x0008 /* packet monitored bad */ +#define TCREG_FU 0x0004 /* FIFO underrun */ +#define TCREG_BCM 0x0002 /* byte count mismatch of fragments */ +#define TCREG_PTX 0x0001 /* packet transmitted OK */ + +/* Interrupt Mask Register */ + +#define SONIC_IMREG 0x08 +#define IMREG_BREN 0x4000 /* interrupt when bus retry occurred */ +#define IMREG_HBLEN 0x2000 /* interrupt when heartbeat lost */ +#define IMREG_LCDEN 0x1000 /* interrupt when CAM loaded */ +#define IMREG_PINTEN 0x0800 /* interrupt when PINT in TDA set */ +#define IMREG_PRXEN 0x0400 /* interrupt when packet received */ +#define IMREG_PTXEN 0x0200 /* interrupt when packet was sent */ +#define IMREG_TXEREN 0x0100 /* interrupt when send failed */ +#define IMREG_TCEN 0x0080 /* interrupt when timer completed */ +#define IMREG_RDEEN 0x0040 /* interrupt when RDA exhausted */ +#define IMREG_RBEEN 0x0020 /* interrupt when RBA exhausted */ +#define IMREG_RBAEEN 0x0010 /* interrupt when RBA too short */ +#define IMREG_CRCEN 0x0008 /* interrupt when CRC counter rolls */ +#define IMREG_FAEEN 0x0004 /* interrupt when FAE counter rolls */ +#define IMREG_MPEN 0x0002 /* interrupt when MP counter rolls */ +#define IMREG_RFOEN 0x0001 /* interrupt when Rx FIFO overflows */ + +/* Interrupt Status Register */ + +#define SONIC_ISREG 0x0a +#define ISREG_BR 0x4000 /* bus retry occurred */ +#define ISREG_HBL 0x2000 /* heartbeat lost */ +#define ISREG_LCD 0x1000 /* CAM loaded */ +#define ISREG_PINT 0x0800 /* PINT in TDA set */ +#define ISREG_PKTRX 0x0400 /* packet received */ +#define ISREG_TXDN 0x0200 /* packet was sent */ +#define ISREG_TXER 0x0100 /* send failed */ +#define ISREG_TC 0x0080 /* timer completed */ +#define ISREG_RDE 0x0040 /* RDA exhausted */ +#define ISREG_RBE 0x0020 /* RBA exhausted */ +#define ISREG_RBAE 0x0010 /* RBA too short for received frame */ +#define ISREG_CRC 0x0008 /* CRC counter rolls over */ +#define ISREG_FAE 0x0004 /* FAE counter rolls over */ +#define ISREG_MP 0x0002 /* MP counter rolls over */ +#define ISREG_RFO 0x0001 /* Rx FIFO overflows */ + +#define SONIC_UTDA 0x0c /* current transmit descr address */ +#define SONIC_CTDA 0x0e + +#define SONIC_URDA 0x1a /* current receive descr address */ +#define SONIC_CRDA 0x1c + +#define SONIC_CRBA0 0x1e /* current receive buffer address */ +#define SONIC_CRBA1 0x20 + +#define SONIC_RBWC0 0x22 /* word count in receive buffer */ +#define SONIC_RBWC1 0x24 + +#define SONIC_EOBC 0x26 /* minimum space to be free in RBA */ + +#define SONIC_URRA 0x28 /* upper address of CDA & Recv Area */ + +#define SONIC_RSA 0x2a /* start of receive resource area */ + +#define SONIC_REA 0x2c /* end of receive resource area */ + +#define SONIC_RRP 0x2e /* resource read pointer */ + +#define SONIC_RWP 0x30 /* resource write pointer */ + +#define SONIC_CAMEPTR 0x42 /* CAM entry pointer */ + +#define SONIC_CAMADDR2 0x44 /* CAM address ports */ +#define SONIC_CAMADDR1 0x46 +#define SONIC_CAMADDR0 0x48 + +#define SONIC_CAMPTR 0x4c /* lower address of CDA */ + +#define SONIC_CAMCNT 0x4e /* # of CAM descriptors to load */ + +/* Data Configuration Register 2 */ + +#define SONIC_DCREG2 0x7e +#define DCREG2_EXPO3 0x8000 /* extended programmable outputs */ +#define DCREG2_EXPO2 0x4000 +#define DCREG2_EXPO1 0x2000 +#define DCREG2_EXPO0 0x1000 +#define DCREG2_HD 0x0800 /* heartbeat disable */ +#define DCREG2_JD 0x0200 /* jabber timer disable */ +#define DCREG2_AUTO 0x0100 /* enable AUI/TP auto selection */ +#define DCREG2_XWRAP 0x0040 /* TP transceiver loopback */ +#define DCREG2_PH 0x0010 /* HOLD request timing */ +#define DCREG2_PCM 0x0004 /* packet compress when matched */ +#define DCREG2_PCNM 0x0002 /* packet compress when not matched */ +#define DCREG2_RJCM 0x0001 /* inverse packet match via CAM */ + +/* Board Control Register: Enable RAM, Interrupts... */ + +#define BCMREG 0x80 +#define BCMREG_RAMEN 0x80 /* switch over to RAM */ +#define BCMREG_IPEND 0x40 /* interrupt pending ? */ +#define BCMREG_RESET 0x08 /* reset board */ +#define BCMREG_16BIT 0x04 /* adapter in 16-bit slot */ +#define BCMREG_RAMWIN 0x02 /* enable RAM window */ +#define BCMREG_IEN 0x01 /* interrupt enable */ + +/* MAC Address PROM */ + +#define MACADDRPROM 0x92 + +/* structure of a CAM entry */ + +typedef struct { + u32 index; /* pointer into CAM area */ + u32 addr0; /* address part (bits 0..15 used) */ + u32 addr1; + u32 addr2; +} camentry_t; + +/* structure of a receive resource */ + +typedef struct { + u32 startlo; /* start address (bits 0..15 used) */ + u32 starthi; + u32 cntlo; /* size in 16-bit quantities */ + u32 cnthi; +} rra_t; + +/* structure of a receive descriptor */ + +typedef struct { + u32 status; /* packet status */ + u32 length; /* length in bytes */ + u32 startlo; /* start address */ + u32 starthi; + u32 seqno; /* frame sequence */ + u32 link; /* pointer to next descriptor */ + /* bit 0 = EOL */ + u32 inuse; /* !=0 --> free for SONIC to write */ +} rda_t; + +/* structure of a transmit descriptor */ + +typedef struct { + u32 status; /* transmit status */ + u32 config; /* value for TCR */ + u32 length; /* total length */ + u32 fragcount; /* number of fragments */ + u32 startlo; /* start address of fragment */ + u32 starthi; + u32 fraglength; /* length of this fragment */ + /* more address/length triplets may */ + /* follow here */ + u32 link; /* pointer to next descriptor */ + /* bit 0 = EOL */ +} tda_t; + +#endif /* _IBM_LANA_DRIVER_ */ + +#endif /* _IBM_LANA_INCLUDE_ */ |