FreeBSD/Linux Kernel Cross Reference
sys/dev/lnc/if_lncvar.h

     /*-
      * Copyright (c) 1994-1998
      *      Paul Richards.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer,
     *    verbatim and that no modifications are made prior to this
     *    point in the file.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Paul Richards.
     * 4. The name Paul Richards may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY PAUL RICHARDS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL PAUL RICHARDS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    /*
     * Initialize multicast address hashing registers to accept
     * all multicasts (only used when in promiscuous mode)
     */
    #define MULTI_INIT_ADDR 0xff
    
    #define NORMAL 0
    
    #define NRDRE 3
    #define NTDRE 3
    #define RECVBUFSIZE 1518        /* Packet size rounded to dword boundary */
    #define TRANSBUFSIZE 1518
    #define MBUF_CACHE_LIMIT 0
    
    #define MEM_SLEW 8
    
    /* LNC Flags */
    #define LNC_INITIALISED 1
    #define LNC_ALLMULTI 2
    
    /* BICC port addresses */
    #define BICC_IOSIZE    16
    #define BICC_RDP     0x0c        /* Register Data Port */
    #define BICC_RAP     0x0e        /* Register Address Port */
    
    /* NE2100 port addresses */
    #define NE2100_IOSIZE  24
    #define PCNET_RDP    0x10        /* Register Data Port */
    #define PCNET_RAP    0x12        /* Register Address Port */
    #define PCNET_RESET  0x14
    #define PCNET_BDP    0x16
    #define PCNET_VSW    0x18
    
    /* DEPCA port addresses */
    #define DEPCA_IOSIZE   16
    #define DEPCA_CTRL   0x00        /* NIC Control and status register */
    #define DEPCA_RDP    0x04        /* Register Data Port */
    #define DEPCA_RAP    0x06        /* Register Address Port */
    #define DEPCA_ADP    0x0c
    
    /* DEPCA specific defines */
    #define DEPCA_ADDR_ROM_SIZE 32
    
    /* C-NET(98)S port addresses */
    /* Notice, we can ignore fragmantation by using isa_alloc_resourcev(). */
    #define CNET98S_IOSIZE   32     
    #define CNET98S_RDP    0x10      /* Register Data Port */
    #define CNET98S_RAP    0x12      /* Register Address Port */
    #define CNET98S_RESET  0x14
    #define CNET98S_IDP    0x16
    #define CNET98S_EEPROM 0x1e
    
    /* Chip types */
    #define LANCE           1        /* Am7990   */
    #define C_LANCE         2        /* Am79C90  */
    #define PCnet_ISA       3        /* Am79C960 */
    #define PCnet_ISAplus   4        /* Am79C961 */
    #define PCnet_ISA_II    5        /* Am79C961A */
    #define PCnet_32        6        /* Am79C965 */
    #define PCnet_PCI       7        /* Am79C970 */
    #define PCnet_PCI_II    8        /* Am79C970A */
    #define PCnet_FAST      9        /* Am79C971 */
    #define PCnet_FASTplus  10       /* Am79C972 */
    #define PCnet_Home      11       /* Am79C978 */
   
   
   /* CSR88-89: Chip ID masks */
   #define AMD_MASK  0x003
   #define PART_MASK 0xffff
   #define Am79C960  0x0003
   #define Am79C961  0x2260
   #define Am79C961A 0x2261
   #define Am79C965  0x2430
   #define Am79C970  0x0242
   #define Am79C970A 0x2621
   #define Am79C971  0x2623
   #define Am79C972  0x2624
   #define Am79C973  0x2625
   #define Am79C978  0x2626
   
   /* Board types */
   #define UNKNOWN         0
   #define BICC            1
   #define NE2100          2
   #define DEPCA           3
   #define CNET98S         4       /* PC-98 */
   
   /* mem_mode values */
   #define DMA_FIXED       1
   #define DMA_MBUF        2
   #define SHMEM           4
   
   #define MEM_MODES \
           "\2\3SHMEM\2DMA_MBUF\1DMA_FIXED"
   
   #define CSR0_FLAGS \
           "\2\20ERR\17BABL\16CERR\15MISS\14MERR\13RINT\12TINT\11IDON\
               \10INTR\07INEA\06RXON\05TXON\04TDMD\03STOP\02STRT\01INIT"
   
   #define INIT_MODE \
           "\2\20PROM\07INTL\06DRTY\05COLL\04DTCR\03LOOP\02DTX\01DRX"
   
   #define RECV_MD1 \
           "\2\10OWN\7ERR\6FRAM\5OFLO\4CRC\3BUFF\2STP\1ENP"
   
   #define TRANS_MD1 \
           "\2\10OWN\7ERR\6RES\5MORE\4ONE\3DEF\2STP\1ENP"
   
   #define TRANS_MD3 \
           "\2\6BUFF\5UFLO\4RES\3LCOL\2LCAR\1RTRY"
   
   #ifdef LNC_KEEP_STATS
   #define LNCSTATS_STRUCT \
           struct lnc_stats { \
                   int idon; \
                   int rint; \
                   int tint; \
                   int cerr; \
                   int babl; \
                   int miss; \
                   int merr; \
                   int rxoff; \
                   int txoff; \
                   int terr; \
                   int lcol; \
                   int lcar; \
                   int tbuff; \
                   int def; \
                   int more; \
                   int one; \
                   int uflo; \
                   int rtry; \
                   int rerr; \
                   int fram; \
                   int oflo; \
                   int crc; \
                   int rbuff; \
                   int drop_packet; \
                   int trans_ring_full; \
           } lnc_stats;
   #define LNCSTATS(X) ++(sc->lnc_stats.X);
   #else
   #define LNCSTATS_STRUCT
   #define LNCSTATS(X)
   #endif
   
   struct nic_info {
           int ident;         /* Type of card */
           int ic;            /* Type of ic, Am7990, Am79C960 etc. */
           int mem_mode;
           int iobase;
           int mode;          /* Mode setting at initialization */
   };
   
   typedef struct lnc_softc {
           struct resource *irqres;
           int irqrid;
           struct resource *drqres;
           int drqrid;
           struct resource *portres;
           int portrid;
           bus_space_tag_t lnc_btag;
           bus_space_handle_t lnc_bhandle;
           void *intrhand;
           bus_dma_tag_t   dmat;
           bus_dmamap_t    dmamap;
           struct arpcom arpcom;               /* see ../../net/if_arp.h */
           struct nic_info nic;                /* NIC specific info */
           int nrdre;
           struct host_ring_entry *recv_ring;  /* start of alloc'd mem */
           int recv_next;
           int ntdre;
           struct host_ring_entry *trans_ring;
           int trans_next;
           struct init_block *init_block;      /* Initialisation block */
           int pending_transmits;        /* No. of transmit descriptors in
           use */
           int next_to_send;
           struct mbuf *mbufs;
           int mbuf_count;
           int flags;
           int rap;
           int rdp;
           int bdp;
           #ifdef DEBUG
           int lnc_debug;
           #endif
           LNCSTATS_STRUCT
   } lnc_softc_t;
   
   struct host_ring_entry {
           struct mds *md;
           union {
                   struct mbuf *mbuf;
                   char *data;
           }buff;
   };
   
   #define NDESC(len2) (1 << len2)
   
   #define INC_MD_PTR(ptr, no_entries) \
           if (++ptr >= NDESC(no_entries)) \
                   ptr = 0;
   
   #define DEC_MD_PTR(ptr, no_entries) \
           if (--ptr < 0) \
                   ptr = NDESC(no_entries) - 1;
   
   #define RECV_NEXT (sc->recv_ring->base + sc->recv_next)
   #define TRANS_NEXT (sc->trans_ring->base + sc->trans_next)
   
   #define lnc_inb(port) \
           bus_space_read_1(sc->lnc_btag, sc->lnc_bhandle, (port))
   #define lnc_inw(port) \
           bus_space_read_2(sc->lnc_btag, sc->lnc_bhandle, (port))
   #define lnc_outw(port, val) \
           bus_space_write_2(sc->lnc_btag, sc->lnc_bhandle, (port), (val))
   
   /* Functional declarations */
   extern int lance_probe(struct lnc_softc *);
   extern void lnc_release_resources(device_t);
   extern int lnc_attach_common(device_t);
   extern void lnc_stop(struct lnc_softc *);
   
   extern void write_csr(struct lnc_softc *, u_short, u_short);
   extern u_short read_csr(struct lnc_softc *, u_short);
   
   /* Variable declarations */
   extern driver_intr_t lncintr; 
   extern devclass_t lnc_devclass;

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