#ifndef _SK_MCA_INCLUDE_ #define _SK_MCA_INCLUDE_ #ifdef _SK_MCA_DRIVER_ /* Adapter ID's */ #define SKNET_MCA_ID 0x6afd #define SKNET_JUNIOR_MCA_ID 0x6be9 /* media enumeration - defined in a way that it fits onto the MC2+'s POS registers... */ typedef enum {Media_10Base2, Media_10BaseT, Media_10Base5, Media_Unknown, Media_Count} skmca_medium; /* private structure */ typedef struct { unsigned int slot; /* MCA-Slot-# */ unsigned int macbase; /* base address of MAC address PROM */ unsigned int ioregaddr; /* address of I/O-register (Lo) */ unsigned int ctrladdr; /* address of control/stat register */ unsigned int cmdaddr; /* address of I/O-command register */ int nextrx; /* index of next RX descriptor to be read */ int nexttxput; /* index of next free TX descriptor */ int nexttxdone; /* index of next TX descriptor to be finished */ int txbusy; /* # of busy TX descriptors */ struct enet_statistics stat; /* packet statistics */ int realirq; /* memorizes actual IRQ, even when currently not allocated */ skmca_medium medium; /* physical cannector */ } skmca_priv; /* card registers: control/status register bits */ #define CTRL_ADR_DATA 0 /* Bit 0 = 0 ->access data register */ #define CTRL_ADR_RAP 1 /* Bit 0 = 1 ->access RAP register */ #define CTRL_RW_WRITE 0 /* Bit 1 = 0 ->write register */ #define CTRL_RW_READ 2 /* Bit 1 = 1 ->read register */ #define CTRL_RESET_ON 0 /* Bit 3 = 0 ->reset board */ #define CTRL_RESET_OFF 8 /* Bit 3 = 1 ->no reset of board */ #define STAT_ADR_DATA 0 /* Bit 0 of ctrl register read back */ #define STAT_ADR_RAP 1 #define STAT_RW_WRITE 0 /* Bit 1 of ctrl register read back */ #define STAT_RW_READ 2 #define STAT_RESET_ON 0 /* Bit 3 of ctrl register read back */ #define STAT_RESET_OFF 8 #define STAT_IRQ_ACT 0 /* interrupt pending */ #define STAT_IRQ_NOACT 16 /* no interrupt pending */ #define STAT_IO_NOBUSY 0 /* no transfer busy */ #define STAT_IO_BUSY 32 /* transfer busy */ /* I/O command register bits */ #define IOCMD_GO 128 /* Bit 7 = 1 -> start register xfer */ /* LANCE registers */ #define LANCE_CSR0 0 /* Status/Control */ #define CSR0_ERR 0x8000 /* general error flag */ #define CSR0_BABL 0x4000 /* transmitter timeout */ #define CSR0_CERR 0x2000 /* collision error */ #define CSR0_MISS 0x1000 /* lost Rx block */ #define CSR0_MERR 0x0800 /* memory access error */ #define CSR0_RINT 0x0400 /* receiver interrupt */ #define CSR0_TINT 0x0200 /* transmitter interrupt */ #define CSR0_IDON 0x0100 /* initialization done */ #define CSR0_INTR 0x0080 /* general interrupt flag */ #define CSR0_INEA 0x0040 /* interrupt enable */ #define CSR0_RXON 0x0020 /* receiver enabled */ #define CSR0_TXON 0x0010 /* transmitter enabled */ #define CSR0_TDMD 0x0008 /* force transmission now */ #define CSR0_STOP 0x0004 /* stop LANCE */ #define CSR0_STRT 0x0002 /* start LANCE */ #define CSR0_INIT 0x0001 /* read initialization block */ #define LANCE_CSR1 1 /* addr bit 0..15 of initialization */ #define LANCE_CSR2 2 /* 16..23 block */ #define LANCE_CSR3 3 /* Bus control */ #define CSR3_BCON_HOLD 0 /* Bit 0 = 0 -> BM1,BM0,HOLD */ #define CSR3_BCON_BUSRQ 1 /* Bit 0 = 1 -> BUSAK0,BYTE,BUSRQ */ #define CSR3_ALE_HIGH 0 /* Bit 1 = 0 -> ALE asserted high */ #define CSR3_ALE_LOW 2 /* Bit 1 = 1 -> ALE asserted low */ #define CSR3_BSWAP_OFF 0 /* Bit 2 = 0 -> no byte swap */ #define CSR3_BSWAP_ON 0 /* Bit 2 = 1 -> byte swap */ /* LANCE structures */ typedef struct /* LANCE initialization block */ { u16 Mode; /* mode flags */ u8 PAdr[6]; /* MAC address */ u8 LAdrF[8]; /* Multicast filter */ u32 RdrP; /* Receive descriptor */ u32 TdrP; /* Transmit descriptor */ } LANCE_InitBlock; /* Mode flags init block */ #define LANCE_INIT_PROM 0x8000 /* enable promiscous mode */ #define LANCE_INIT_INTL 0x0040 /* internal loopback */ #define LANCE_INIT_DRTY 0x0020 /* disable retry */ #define LANCE_INIT_COLL 0x0010 /* force collision */ #define LANCE_INIT_DTCR 0x0008 /* disable transmit CRC */ #define LANCE_INIT_LOOP 0x0004 /* loopback */ #define LANCE_INIT_DTX 0x0002 /* disable transmitter */ #define LANCE_INIT_DRX 0x0001 /* disable receiver */ typedef struct /* LANCE Tx descriptor */ { u16 LowAddr; /* bit 0..15 of address */ u16 Flags; /* bit 16..23 of address + Flags */ u16 Len; /* 2s complement of packet length */ u16 Status; /* Result of transmission */ } LANCE_TxDescr; #define TXDSCR_FLAGS_OWN 0x8000 /* LANCE owns descriptor */ #define TXDSCR_FLAGS_ERR 0x4000 /* summary error flag */ #define TXDSCR_FLAGS_MORE 0x1000 /* more than one retry needed? */ #define TXDSCR_FLAGS_ONE 0x0800 /* one retry? */ #define TXDSCR_FLAGS_DEF 0x0400 /* transmission deferred? */ #define TXDSCR_FLAGS_STP 0x0200 /* first packet in chain? */ #define TXDSCR_FLAGS_ENP 0x0100 /* last packet in chain? */ #define TXDSCR_STATUS_BUFF 0x8000 /* buffer error? */ #define TXDSCR_STATUS_UFLO 0x4000 /* silo underflow during transmit? */ #define TXDSCR_STATUS_LCOL 0x1000 /* late collision? */ #define TXDSCR_STATUS_LCAR 0x0800 /* loss of carrier? */ #define TXDSCR_STATUS_RTRY 0x0400 /* retry error? */ typedef struct /* LANCE Rx descriptor */ { u16 LowAddr; /* bit 0..15 of address */ u16 Flags; /* bit 16..23 of address + Flags */ u16 MaxLen; /* 2s complement of buffer length */ u16 Len; /* packet length */ } LANCE_RxDescr; #define RXDSCR_FLAGS_OWN 0x8000 /* LANCE owns descriptor */ #define RXDSCR_FLAGS_ERR 0x4000 /* summary error flag */ #define RXDSCR_FLAGS_FRAM 0x2000 /* framing error flag */ #define RXDSCR_FLAGS_OFLO 0x1000 /* FIFO overflow? */ #define RXDSCR_FLAGS_CRC 0x0800 /* CRC error? */ #define RXDSCR_FLAGS_BUFF 0x0400 /* buffer error? */ #define RXDSCR_FLAGS_STP 0x0200 /* first packet in chain? */ #define RXDCSR_FLAGS_ENP 0x0100 /* last packet in chain? */ /* RAM layout */ #define TXCOUNT 4 /* length of TX descriptor queue */ #define LTXCOUNT 2 /* log2 of it */ #define RXCOUNT 4 /* length of RX descriptor queue */ #define LRXCOUNT 2 /* log2 of it */ #define RAM_INITBASE 0 /* LANCE init block */ #define RAM_TXBASE 24 /* Start of TX descriptor queue */ #define RAM_RXBASE \ (RAM_TXBASE + (TXCOUNT * 8)) /* Start of RX descriptor queue */ #define RAM_DATABASE \ (RAM_RXBASE + (RXCOUNT * 8)) /* Start of data area for frames */ #define RAM_BUFSIZE 1580 /* max. frame size - should never be reached */ #endif /* _SK_MCA_DRIVER_ */ extern int skmca_probe(struct device *); #endif /* _SK_MCA_INCLUDE_ */