171 строка
8.0 KiB
C
171 строка
8.0 KiB
C
#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-# */
|
|
void __iomem *base;
|
|
void __iomem *macbase; /* base address of MAC address PROM */
|
|
void __iomem *ioregaddr;/* address of I/O-register (Lo) */
|
|
void __iomem *ctrladdr; /* address of control/stat register */
|
|
void __iomem *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 net_device_stats stat; /* packet statistics */
|
|
int realirq; /* memorizes actual IRQ, even when
|
|
currently not allocated */
|
|
skmca_medium medium; /* physical cannector */
|
|
spinlock_t lock;
|
|
} 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 4 /* 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_ */
|
|
|
|
#endif /* _SK_MCA_INCLUDE_ */
|