sonic.h
来自「linux 内核源代码」· C头文件 代码 · 共 451 行
H
451 行
/* * Header file for sonic.c * * (C) Waldorf Electronics, Germany * Written by Andreas Busse * * NOTE: most of the structure definitions here are endian dependent. * If you want to use this driver on big endian machines, the data * and pad structure members must be exchanged. Also, the structures * need to be changed accordingly to the bus size. * * 981229 MSch: did just that for the 68k Mac port (32 bit, big endian) * * 990611 David Huggins-Daines <dhd@debian.org>: This machine abstraction * does not cope with 16-bit bus sizes very well. Therefore I have * rewritten it with ugly macros and evil inlines. * * 050625 Finn Thain: introduced more 32-bit cards and dhd's support * for 16-bit cards (from the mac68k project). */#ifndef SONIC_H#define SONIC_H/* * SONIC register offsets */#define SONIC_CMD 0x00#define SONIC_DCR 0x01#define SONIC_RCR 0x02#define SONIC_TCR 0x03#define SONIC_IMR 0x04#define SONIC_ISR 0x05#define SONIC_UTDA 0x06#define SONIC_CTDA 0x07#define SONIC_URDA 0x0d#define SONIC_CRDA 0x0e#define SONIC_EOBC 0x13#define SONIC_URRA 0x14#define SONIC_RSA 0x15#define SONIC_REA 0x16#define SONIC_RRP 0x17#define SONIC_RWP 0x18#define SONIC_RSC 0x2b#define SONIC_CEP 0x21#define SONIC_CAP2 0x22#define SONIC_CAP1 0x23#define SONIC_CAP0 0x24#define SONIC_CE 0x25#define SONIC_CDP 0x26#define SONIC_CDC 0x27#define SONIC_WT0 0x29#define SONIC_WT1 0x2a#define SONIC_SR 0x28/* test-only registers */#define SONIC_TPS 0x08#define SONIC_TFC 0x09#define SONIC_TSA0 0x0a#define SONIC_TSA1 0x0b#define SONIC_TFS 0x0c#define SONIC_CRBA0 0x0f#define SONIC_CRBA1 0x10#define SONIC_RBWC0 0x11#define SONIC_RBWC1 0x12#define SONIC_TTDA 0x20#define SONIC_MDT 0x2f#define SONIC_TRBA0 0x19#define SONIC_TRBA1 0x1a#define SONIC_TBWC0 0x1b#define SONIC_TBWC1 0x1c#define SONIC_LLFA 0x1f#define SONIC_ADDR0 0x1d#define SONIC_ADDR1 0x1e/* * Error counters */#define SONIC_CRCT 0x2c#define SONIC_FAET 0x2d#define SONIC_MPT 0x2e#define SONIC_DCR2 0x3f/* * SONIC command bits */#define SONIC_CR_LCAM 0x0200#define SONIC_CR_RRRA 0x0100#define SONIC_CR_RST 0x0080#define SONIC_CR_ST 0x0020#define SONIC_CR_STP 0x0010#define SONIC_CR_RXEN 0x0008#define SONIC_CR_RXDIS 0x0004#define SONIC_CR_TXP 0x0002#define SONIC_CR_HTX 0x0001/* * SONIC data configuration bits */#define SONIC_DCR_EXBUS 0x8000#define SONIC_DCR_LBR 0x2000#define SONIC_DCR_PO1 0x1000#define SONIC_DCR_PO0 0x0800#define SONIC_DCR_SBUS 0x0400#define SONIC_DCR_USR1 0x0200#define SONIC_DCR_USR0 0x0100#define SONIC_DCR_WC1 0x0080#define SONIC_DCR_WC0 0x0040#define SONIC_DCR_DW 0x0020#define SONIC_DCR_BMS 0x0010#define SONIC_DCR_RFT1 0x0008#define SONIC_DCR_RFT0 0x0004#define SONIC_DCR_TFT1 0x0002#define SONIC_DCR_TFT0 0x0001/* * Constants for the SONIC receive control register. */#define SONIC_RCR_ERR 0x8000#define SONIC_RCR_RNT 0x4000#define SONIC_RCR_BRD 0x2000#define SONIC_RCR_PRO 0x1000#define SONIC_RCR_AMC 0x0800#define SONIC_RCR_LB1 0x0400#define SONIC_RCR_LB0 0x0200#define SONIC_RCR_MC 0x0100#define SONIC_RCR_BC 0x0080#define SONIC_RCR_LPKT 0x0040#define SONIC_RCR_CRS 0x0020#define SONIC_RCR_COL 0x0010#define SONIC_RCR_CRCR 0x0008#define SONIC_RCR_FAER 0x0004#define SONIC_RCR_LBK 0x0002#define SONIC_RCR_PRX 0x0001#define SONIC_RCR_LB_OFF 0#define SONIC_RCR_LB_MAC SONIC_RCR_LB0#define SONIC_RCR_LB_ENDEC SONIC_RCR_LB1#define SONIC_RCR_LB_TRANS (SONIC_RCR_LB0 | SONIC_RCR_LB1)/* default RCR setup */#define SONIC_RCR_DEFAULT (SONIC_RCR_BRD)/* * SONIC Transmit Control register bits */#define SONIC_TCR_PINTR 0x8000#define SONIC_TCR_POWC 0x4000#define SONIC_TCR_CRCI 0x2000#define SONIC_TCR_EXDIS 0x1000#define SONIC_TCR_EXD 0x0400#define SONIC_TCR_DEF 0x0200#define SONIC_TCR_NCRS 0x0100#define SONIC_TCR_CRLS 0x0080#define SONIC_TCR_EXC 0x0040#define SONIC_TCR_PMB 0x0008#define SONIC_TCR_FU 0x0004#define SONIC_TCR_BCM 0x0002#define SONIC_TCR_PTX 0x0001#define SONIC_TCR_DEFAULT 0x0000/* * Constants for the SONIC_INTERRUPT_MASK and * SONIC_INTERRUPT_STATUS registers. */#define SONIC_INT_BR 0x4000#define SONIC_INT_HBL 0x2000#define SONIC_INT_LCD 0x1000#define SONIC_INT_PINT 0x0800#define SONIC_INT_PKTRX 0x0400#define SONIC_INT_TXDN 0x0200#define SONIC_INT_TXER 0x0100#define SONIC_INT_TC 0x0080#define SONIC_INT_RDE 0x0040#define SONIC_INT_RBE 0x0020#define SONIC_INT_RBAE 0x0010#define SONIC_INT_CRC 0x0008#define SONIC_INT_FAE 0x0004#define SONIC_INT_MP 0x0002#define SONIC_INT_RFO 0x0001/* * The interrupts we allow. */#define SONIC_IMR_DEFAULT ( SONIC_INT_BR | \ SONIC_INT_LCD | \ SONIC_INT_RFO | \ SONIC_INT_PKTRX | \ SONIC_INT_TXDN | \ SONIC_INT_TXER | \ SONIC_INT_RDE | \ SONIC_INT_RBAE | \ SONIC_INT_CRC | \ SONIC_INT_FAE | \ SONIC_INT_MP)#define SONIC_EOL 0x0001#define CAM_DESCRIPTORS 16/* Offsets in the various DMA buffers accessed by the SONIC */#define SONIC_BITMODE16 0#define SONIC_BITMODE32 1#define SONIC_BUS_SCALE(bitmode) ((bitmode) ? 4 : 2)/* Note! These are all measured in bus-size units, so use SONIC_BUS_SCALE */#define SIZEOF_SONIC_RR 4#define SONIC_RR_BUFADR_L 0#define SONIC_RR_BUFADR_H 1#define SONIC_RR_BUFSIZE_L 2#define SONIC_RR_BUFSIZE_H 3#define SIZEOF_SONIC_RD 7#define SONIC_RD_STATUS 0#define SONIC_RD_PKTLEN 1#define SONIC_RD_PKTPTR_L 2#define SONIC_RD_PKTPTR_H 3#define SONIC_RD_SEQNO 4#define SONIC_RD_LINK 5#define SONIC_RD_IN_USE 6#define SIZEOF_SONIC_TD 8#define SONIC_TD_STATUS 0#define SONIC_TD_CONFIG 1#define SONIC_TD_PKTSIZE 2#define SONIC_TD_FRAG_COUNT 3#define SONIC_TD_FRAG_PTR_L 4#define SONIC_TD_FRAG_PTR_H 5#define SONIC_TD_FRAG_SIZE 6#define SONIC_TD_LINK 7#define SIZEOF_SONIC_CD 4#define SONIC_CD_ENTRY_POINTER 0#define SONIC_CD_CAP0 1#define SONIC_CD_CAP1 2#define SONIC_CD_CAP2 3#define SIZEOF_SONIC_CDA ((CAM_DESCRIPTORS * SIZEOF_SONIC_CD) + 1)#define SONIC_CDA_CAM_ENABLE (CAM_DESCRIPTORS * SIZEOF_SONIC_CD)/* * Some tunables for the buffer areas. Power of 2 is required * the current driver uses one receive buffer for each descriptor. * * MSch: use more buffer space for the slow m68k Macs! */#define SONIC_NUM_RRS 16 /* number of receive resources */#define SONIC_NUM_RDS SONIC_NUM_RRS /* number of receive descriptors */#define SONIC_NUM_TDS 16 /* number of transmit descriptors */#define SONIC_RDS_MASK (SONIC_NUM_RDS-1)#define SONIC_TDS_MASK (SONIC_NUM_TDS-1)#define SONIC_RBSIZE 1520 /* size of one resource buffer *//* Again, measured in bus size units! */#define SIZEOF_SONIC_DESC (SIZEOF_SONIC_CDA \ + (SIZEOF_SONIC_TD * SONIC_NUM_TDS) \ + (SIZEOF_SONIC_RD * SONIC_NUM_RDS) \ + (SIZEOF_SONIC_RR * SONIC_NUM_RRS))/* Information that need to be kept for each board. */struct sonic_local { /* Bus size. 0 == 16 bits, 1 == 32 bits. */ int dma_bitmode; /* Register offset within the longword (independent of endianness, and varies from one type of Macintosh SONIC to another (Aarrgh)) */ int reg_offset; void *descriptors; /* Crud. These areas have to be within the same 64K. Therefore we allocate a desriptors page, and point these to places within it. */ void *cda; /* CAM descriptor area */ void *tda; /* Transmit descriptor area */ void *rra; /* Receive resource area */ void *rda; /* Receive descriptor area */ struct sk_buff* volatile rx_skb[SONIC_NUM_RRS]; /* packets to be received */ struct sk_buff* volatile tx_skb[SONIC_NUM_TDS]; /* packets to be transmitted */ unsigned int tx_len[SONIC_NUM_TDS]; /* lengths of tx DMA mappings */ /* Logical DMA addresses on MIPS, bus addresses on m68k * (so "laddr" is a bit misleading) */ dma_addr_t descriptors_laddr; u32 cda_laddr; /* logical DMA address of CDA */ u32 tda_laddr; /* logical DMA address of TDA */ u32 rra_laddr; /* logical DMA address of RRA */ u32 rda_laddr; /* logical DMA address of RDA */ dma_addr_t rx_laddr[SONIC_NUM_RRS]; /* logical DMA addresses of rx skbuffs */ dma_addr_t tx_laddr[SONIC_NUM_TDS]; /* logical DMA addresses of tx skbuffs */ unsigned int rra_end; unsigned int cur_rwp; unsigned int cur_rx; unsigned int cur_tx; /* first unacked transmit packet */ unsigned int eol_rx; unsigned int eol_tx; /* last unacked transmit packet */ unsigned int next_tx; /* next free TD */ struct device *device; /* generic device */ struct net_device_stats stats;};#define TX_TIMEOUT (3 * HZ)/* Index to functions, as function prototypes. */static int sonic_open(struct net_device *dev);static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev);static irqreturn_t sonic_interrupt(int irq, void *dev_id);static void sonic_rx(struct net_device *dev);static int sonic_close(struct net_device *dev);static struct net_device_stats *sonic_get_stats(struct net_device *dev);static void sonic_multicast_list(struct net_device *dev);static int sonic_init(struct net_device *dev);static void sonic_tx_timeout(struct net_device *dev);/* Internal inlines for reading/writing DMA buffers. Note that bus size and endianness matter here, whereas they don't for registers, as far as we can tell. *//* OpenBSD calls this "SWO". I'd like to think that sonic_buf_put() is a much better name. */static inline void sonic_buf_put(void* base, int bitmode, int offset, __u16 val){ if (bitmode)#ifdef __BIG_ENDIAN ((__u16 *) base + (offset*2))[1] = val;#else ((__u16 *) base + (offset*2))[0] = val;#endif else ((__u16 *) base)[offset] = val;}static inline __u16 sonic_buf_get(void* base, int bitmode, int offset){ if (bitmode)#ifdef __BIG_ENDIAN return ((volatile __u16 *) base + (offset*2))[1];#else return ((volatile __u16 *) base + (offset*2))[0];#endif else return ((volatile __u16 *) base)[offset];}/* Inlines that you should actually use for reading/writing DMA buffers */static inline void sonic_cda_put(struct net_device* dev, int entry, int offset, __u16 val){ struct sonic_local* lp = (struct sonic_local *) dev->priv; sonic_buf_put(lp->cda, lp->dma_bitmode, (entry * SIZEOF_SONIC_CD) + offset, val);}static inline __u16 sonic_cda_get(struct net_device* dev, int entry, int offset){ struct sonic_local* lp = (struct sonic_local *) dev->priv; return sonic_buf_get(lp->cda, lp->dma_bitmode, (entry * SIZEOF_SONIC_CD) + offset);}static inline void sonic_set_cam_enable(struct net_device* dev, __u16 val){ struct sonic_local* lp = (struct sonic_local *) dev->priv; sonic_buf_put(lp->cda, lp->dma_bitmode, SONIC_CDA_CAM_ENABLE, val);}static inline __u16 sonic_get_cam_enable(struct net_device* dev){ struct sonic_local* lp = (struct sonic_local *) dev->priv; return sonic_buf_get(lp->cda, lp->dma_bitmode, SONIC_CDA_CAM_ENABLE);}static inline void sonic_tda_put(struct net_device* dev, int entry, int offset, __u16 val){ struct sonic_local* lp = (struct sonic_local *) dev->priv; sonic_buf_put(lp->tda, lp->dma_bitmode, (entry * SIZEOF_SONIC_TD) + offset, val);}static inline __u16 sonic_tda_get(struct net_device* dev, int entry, int offset){ struct sonic_local* lp = (struct sonic_local *) dev->priv; return sonic_buf_get(lp->tda, lp->dma_bitmode, (entry * SIZEOF_SONIC_TD) + offset);}static inline void sonic_rda_put(struct net_device* dev, int entry, int offset, __u16 val){ struct sonic_local* lp = (struct sonic_local *) dev->priv; sonic_buf_put(lp->rda, lp->dma_bitmode, (entry * SIZEOF_SONIC_RD) + offset, val);}static inline __u16 sonic_rda_get(struct net_device* dev, int entry, int offset){ struct sonic_local* lp = (struct sonic_local *) dev->priv; return sonic_buf_get(lp->rda, lp->dma_bitmode, (entry * SIZEOF_SONIC_RD) + offset);}static inline void sonic_rra_put(struct net_device* dev, int entry, int offset, __u16 val){ struct sonic_local* lp = (struct sonic_local *) dev->priv; sonic_buf_put(lp->rra, lp->dma_bitmode, (entry * SIZEOF_SONIC_RR) + offset, val);}static inline __u16 sonic_rra_get(struct net_device* dev, int entry, int offset){ struct sonic_local* lp = (struct sonic_local *) dev->priv; return sonic_buf_get(lp->rra, lp->dma_bitmode, (entry * SIZEOF_SONIC_RR) + offset);}static const char *version = "sonic.c:v0.92 20.9.98 tsbogend@alpha.franken.de\n";#endif /* SONIC_H */⌨️ 快捷键说明
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