The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/tulipvar.h

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    1 /*      $NetBSD: tulipvar.h,v 1.54.2.1 2005/07/01 12:28:25 tron Exp $   */
    2 
    3 /*-
    4  * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
    9  * NASA Ames Research Center.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  * 3. All advertising materials mentioning features or use of this software
   20  *    must display the following acknowledgement:
   21  *      This product includes software developed by the NetBSD
   22  *      Foundation, Inc. and its contributors.
   23  * 4. Neither the name of The NetBSD Foundation nor the names of its
   24  *    contributors may be used to endorse or promote products derived
   25  *    from this software without specific prior written permission.
   26  *
   27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   37  * POSSIBILITY OF SUCH DAMAGE.
   38  */
   39 
   40 #ifndef _DEV_IC_TULIPVAR_H_
   41 #define _DEV_IC_TULIPVAR_H_
   42 
   43 #include "rnd.h"
   44 
   45 #include <sys/queue.h>
   46 #include <sys/callout.h>
   47 
   48 #if NRND > 0
   49 #include <sys/rnd.h>
   50 #endif
   51 
   52 /*
   53  * Misc. definitions for the Digital Semiconductor ``Tulip'' (21x4x)
   54  * Ethernet controller family driver.
   55  */
   56 
   57 /*
   58  * Transmit descriptor list size.  This is arbitrary, but allocate
   59  * enough descriptors for 64 pending transmissions and 16 segments
   60  * per packet.  Since a descriptor holds 2 buffer addresses, that's
   61  * 8 descriptors per packet.  This MUST work out to a power of 2.
   62  */
   63 #define TULIP_NTXSEGS           16
   64 
   65 #define TULIP_TXQUEUELEN        64
   66 #define TULIP_NTXDESC           (TULIP_TXQUEUELEN * TULIP_NTXSEGS)
   67 #define TULIP_NTXDESC_MASK      (TULIP_NTXDESC - 1)
   68 #define TULIP_NEXTTX(x)         ((x + 1) & TULIP_NTXDESC_MASK)
   69 
   70 /*
   71  * Receive descriptor list size.  We have one Rx buffer per incoming
   72  * packet, so this logic is a little simpler.
   73  */
   74 #define TULIP_NRXDESC           64
   75 #define TULIP_NRXDESC_MASK      (TULIP_NRXDESC - 1)
   76 #define TULIP_NEXTRX(x)         ((x + 1) & TULIP_NRXDESC_MASK)
   77 
   78 /*
   79  * Control structures are DMA'd to the TULIP chip.  We allocate them in
   80  * a single clump that maps to a single DMA segment to make several things
   81  * easier.
   82  */
   83 struct tulip_control_data {
   84         /*
   85          * The transmit descriptors.
   86          */
   87         struct tulip_desc tcd_txdescs[TULIP_NTXDESC];
   88 
   89         /*
   90          * The receive descriptors.
   91          */
   92         struct tulip_desc tcd_rxdescs[TULIP_NRXDESC];
   93 
   94         /*
   95          * The setup packet.
   96          */
   97         u_int32_t tcd_setup_packet[TULIP_SETUP_PACKET_LEN / sizeof(u_int32_t)];
   98 };
   99 
  100 #define TULIP_CDOFF(x)          offsetof(struct tulip_control_data, x)
  101 #define TULIP_CDTXOFF(x)        TULIP_CDOFF(tcd_txdescs[(x)])
  102 #define TULIP_CDRXOFF(x)        TULIP_CDOFF(tcd_rxdescs[(x)])
  103 #define TULIP_CDSPOFF           TULIP_CDOFF(tcd_setup_packet)
  104 
  105 /*
  106  * Software state for transmit jobs.
  107  */
  108 struct tulip_txsoft {
  109         struct mbuf *txs_mbuf;          /* head of our mbuf chain */
  110         bus_dmamap_t txs_dmamap;        /* our DMA map */
  111         int txs_firstdesc;              /* first descriptor in packet */
  112         int txs_lastdesc;               /* last descriptor in packet */
  113         int txs_ndescs;                 /* number of descriptors */
  114         SIMPLEQ_ENTRY(tulip_txsoft) txs_q;
  115 };
  116 
  117 SIMPLEQ_HEAD(tulip_txsq, tulip_txsoft);
  118 
  119 /*
  120  * Software state for receive jobs.
  121  */
  122 struct tulip_rxsoft {
  123         struct mbuf *rxs_mbuf;          /* head of our mbuf chain */
  124         bus_dmamap_t rxs_dmamap;        /* our DMA map */
  125 };
  126 
  127 /*
  128  * Type of Tulip chip we're dealing with.
  129  */
  130 typedef enum {
  131         TULIP_CHIP_INVALID   = 0,       /* invalid chip type */
  132         TULIP_CHIP_DE425     = 1,       /* DE-425 EISA */
  133         TULIP_CHIP_21040     = 2,       /* DECchip 21040 */
  134         TULIP_CHIP_21041     = 3,       /* DECchip 21041 */
  135         TULIP_CHIP_21140     = 4,       /* DECchip 21140 */
  136         TULIP_CHIP_21140A    = 5,       /* DECchip 21140A */
  137         TULIP_CHIP_21142     = 6,       /* DECchip 21142 */
  138         TULIP_CHIP_21143     = 7,       /* DECchip 21143 */
  139         TULIP_CHIP_82C168    = 8,       /* Lite-On 82C168 PNIC */
  140         TULIP_CHIP_82C169    = 9,       /* Lite-On 82C169 PNIC */
  141         TULIP_CHIP_82C115    = 10,      /* Lite-On 82C115 PNIC II */
  142         TULIP_CHIP_MX98713   = 11,      /* Macronix 98713 PMAC */
  143         TULIP_CHIP_MX98713A  = 12,      /* Macronix 98713A PMAC */
  144         TULIP_CHIP_MX98715   = 13,      /* Macronix 98715 PMAC */
  145         TULIP_CHIP_MX98715A  = 14,      /* Macronix 98715A PMAC */
  146         TULIP_CHIP_MX98715AEC_X = 15,   /* Macronix 98715AEC-C, -E PMAC */
  147         TULIP_CHIP_MX98725   = 16,      /* Macronix 98725 PMAC */
  148         TULIP_CHIP_WB89C840F = 17,      /* Winbond 89C840F */
  149         TULIP_CHIP_DM9102    = 18,      /* Davicom DM9102 */
  150         TULIP_CHIP_DM9102A   = 19,      /* Davicom DM9102A */
  151         TULIP_CHIP_AL981     = 20,      /* ADMtek AL981 */
  152         TULIP_CHIP_AN983     = 21,      /* ADMtek AN983 */
  153         TULIP_CHIP_AN985     = 22,      /* ADMtek AN985 */
  154         TULIP_CHIP_AX88140   = 23,      /* ASIX AX88140 */
  155         TULIP_CHIP_AX88141   = 24,      /* ASIX AX88141 */
  156         TULIP_CHIP_X3201_3   = 25       /* Xircom X3201-3 */
  157 } tulip_chip_t;
  158 
  159 #define TULIP_CHIP_NAMES                                                \
  160 {                                                                       \
  161         NULL,                                                           \
  162         "DE-425",                                                       \
  163         "DECchip 21040",                                                \
  164         "DECchip 21041",                                                \
  165         "DECchip 21140",                                                \
  166         "DECchip 21140A",                                               \
  167         "DECchip 21142",                                                \
  168         "DECchip 21143",                                                \
  169         "Lite-On 82C168",                                               \
  170         "Lite-On 82C169",                                               \
  171         "Lite-On 82C115",                                               \
  172         "Macronix MX98713",                                             \
  173         "Macronix MX98713A",                                            \
  174         "Macronix MX98715",                                             \
  175         "Macronix MX98715A",                                            \
  176         "Macronix MX98715AEC-x",                                        \
  177         "Macronix MX98725",                                             \
  178         "Winbond 89C840F",                                              \
  179         "Davicom DM9102",                                               \
  180         "Davicom DM9102A",                                              \
  181         "ADMtek AL981",                                                 \
  182         "ADMtek AN983",                                                 \
  183         "ADMtek AN985",                                                 \
  184         "ASIX AX88140",                                                 \
  185         "ASIX AX88141",                                                 \
  186         "Xircom X3201-3",                                               \
  187 }
  188 
  189 struct tulip_softc;
  190 
  191 /*
  192  * Media init, change, status function pointers.
  193  */
  194 struct tulip_mediasw {
  195         void    (*tmsw_init)(struct tulip_softc *);
  196         void    (*tmsw_get)(struct tulip_softc *, struct ifmediareq *);
  197         int     (*tmsw_set)(struct tulip_softc *);
  198 };
  199 
  200 /*
  201  * Table which describes the transmit threshold mode.  We generally
  202  * start at index 0.  Whenever we get a transmit underrun, we increment
  203  * our index, falling back if we encounter the NULL terminator.
  204  */
  205 struct tulip_txthresh_tab {
  206         u_int32_t txth_opmode;          /* OPMODE bits */
  207         const char *txth_name;          /* name of mode */
  208 };
  209 
  210 #define TLP_TXTHRESH_TAB_10 {                                           \
  211         { OPMODE_TR_72,         "72 bytes" },                           \
  212         { OPMODE_TR_96,         "96 bytes" },                           \
  213         { OPMODE_TR_128,        "128 bytes" },                          \
  214         { OPMODE_TR_160,        "160 bytes" },                          \
  215         { 0,                    NULL },                                 \
  216 }
  217 
  218 #define TLP_TXTHRESH_TAB_10_100 {                                       \
  219         { OPMODE_TR_72,         "72/128 bytes" },                       \
  220         { OPMODE_TR_96,         "96/256 bytes" },                       \
  221         { OPMODE_TR_128,        "128/512 bytes" },                      \
  222         { OPMODE_TR_160,        "160/1024 bytes" },                     \
  223         { OPMODE_SF,            "store and forward mode" },             \
  224         { 0,                    NULL },                                 \
  225 }
  226 
  227 #define TXTH_72                 0
  228 #define TXTH_96                 1
  229 #define TXTH_128                2
  230 #define TXTH_160                3
  231 #define TXTH_SF                 4
  232 
  233 #define TLP_TXTHRESH_TAB_DM9102 {                                       \
  234         { OPMODE_TR_72,         "72/128 bytes" },                       \
  235         { OPMODE_TR_96,         "96/256 bytes" },                       \
  236         { OPMODE_TR_128,        "128/512 bytes" },                      \
  237         { OPMODE_SF,            "store and forward mode" },             \
  238         { 0,                    NULL },                                 \
  239 }
  240 
  241 #define TXTH_DM9102_72          0
  242 #define TXTH_DM9102_96          1
  243 #define TXTH_DM9102_128         2
  244 #define TXTH_DM9102_SF          3
  245 
  246 /*
  247  * The Winbond 89C840F does transmit threshold control totally
  248  * differently.  It simply has a 7-bit field which indicates
  249  * the threshold:
  250  *
  251  *      txth = ((OPMODE & OPMODE_WINB_TTH) >> OPMODE_WINB_TTH_SHIFT) * 16;
  252  *
  253  * However, we just do Store-and-Forward mode on these chips, since
  254  * the DMA engines seem to be flaky.
  255  */
  256 #define TLP_TXTHRESH_TAB_WINB {                                         \
  257         { 0,                    "store and forward mode" },             \
  258         { 0,                    NULL },                                 \
  259 }
  260 
  261 #define TXTH_WINB_SF            0
  262 
  263 /*
  264  * Settings for Tulip SIA media.
  265  */
  266 struct tulip_sia_media {
  267         u_int32_t       tsm_siaconn;    /* CSR13 value */
  268         u_int32_t       tsm_siatxrx;    /* CSR14 value */
  269         u_int32_t       tsm_siagen;     /* CSR15 value */
  270 };
  271 
  272 /*
  273  * Description of 2x14x media.
  274  */
  275 struct tulip_21x4x_media {
  276         int             tm_type;        /* type of media; see tulipreg.h */
  277         const char      *tm_name;       /* name of media */
  278 
  279         void            (*tm_get)(struct tulip_softc *, struct ifmediareq *);
  280         int             (*tm_set)(struct tulip_softc *);
  281 
  282         int             tm_phyno;       /* PHY # on MII */
  283 
  284         int             tm_gp_length;   /* MII select sequence length */
  285         int             tm_gp_offset;   /* MII select sequence offset */
  286 
  287         int             tm_reset_length;/* MII reset sequence length */
  288         int             tm_reset_offset;/* MII reset sequence offset */
  289 
  290         u_int32_t       tm_opmode;      /* OPMODE bits for this media */
  291         u_int32_t       tm_gpctl;       /* GPIO control bits for this media */
  292         u_int32_t       tm_gpdata;      /* GPIO bits for this media */
  293         u_int32_t       tm_actmask;     /* `active' bits for this data */
  294         u_int32_t       tm_actdata;     /* active high/low info */
  295 
  296         struct tulip_sia_media tm_sia;  /* SIA settings */
  297 #define tm_siaconn      tm_sia.tsm_siaconn
  298 #define tm_siatxrx      tm_sia.tsm_siatxrx
  299 #define tm_siagen       tm_sia.tsm_siagen
  300 };
  301 
  302 /*
  303  * Table for converting Tulip SROM media info into ifmedia data.
  304  */
  305 struct tulip_srom_to_ifmedia {
  306         u_int8_t        tsti_srom;      /* SROM media type */
  307         int             tsti_subtype;   /* ifmedia subtype */
  308         int             tsti_options;   /* ifmedia options */
  309         const char      *tsti_name;     /* media name */
  310 
  311         u_int32_t       tsti_opmode;    /* OPMODE bits for this media */
  312         u_int32_t       tsti_sia_cap;   /* "MII" capabilities for this media */
  313 
  314         /*
  315          * Settings for 21040, 21041, and 21142/21143 SIA, in the event
  316          * the SROM doesn't have them.
  317          */
  318         struct tulip_sia_media tsti_21040;
  319         struct tulip_sia_media tsti_21041;
  320         struct tulip_sia_media tsti_21142;
  321 };
  322 
  323 /*
  324  * Some misc. statics, useful for debugging.
  325  */
  326 struct tulip_stats {
  327         u_long          ts_tx_uf;       /* transmit underflow errors */
  328         u_long          ts_tx_to;       /* transmit jabber timeouts */
  329         u_long          ts_tx_ec;       /* excessive collision count */
  330         u_long          ts_tx_lc;       /* late collision count */
  331 };
  332 
  333 #ifndef _STANDALONE
  334 /*
  335  * Software state per device.
  336  */
  337 struct tulip_softc {
  338         struct device sc_dev;           /* generic device information */
  339         bus_space_tag_t sc_st;          /* bus space tag */
  340         bus_space_handle_t sc_sh;       /* bus space handle */
  341         bus_dma_tag_t sc_dmat;          /* bus DMA tag */
  342         struct ethercom sc_ethercom;    /* ethernet common data */
  343         void *sc_sdhook;                /* shutdown hook */
  344         void *sc_powerhook;             /* power management hook */
  345 
  346         struct tulip_stats sc_stats;    /* debugging stats */
  347 
  348         /*
  349          * Contents of the SROM.
  350          */
  351         u_int8_t *sc_srom;
  352         int sc_srom_addrbits;
  353 
  354         /*
  355          * Media access functions for this chip.
  356          */
  357         const struct tulip_mediasw *sc_mediasw;
  358         mii_bitbang_ops_t sc_bitbang_ops;
  359 
  360         /*
  361          * For chips with built-in NWay blocks, these are state
  362          * variables required for autonegotiation.
  363          */
  364         int             sc_nway_ticks;  /* tick counter */
  365         struct ifmedia_entry *sc_nway_active; /* the active media */
  366         struct callout  sc_nway_callout;
  367 
  368         tulip_chip_t    sc_chip;        /* chip type */
  369         int             sc_rev;         /* chip revision */
  370         int             sc_flags;       /* misc flags. */
  371         char            sc_name[32];    /* board name */
  372         u_int32_t       sc_cacheline;   /* cache line size */
  373         u_int32_t       sc_maxburst;    /* maximum burst length */
  374         int             sc_devno;       /* PCI device # */
  375 
  376         struct mii_data sc_mii;         /* MII/media information */
  377 
  378         const struct tulip_txthresh_tab *sc_txth;
  379         int             sc_txthresh;    /* current transmit threshold */
  380 
  381         u_int8_t        sc_gp_dir;      /* GPIO pin direction bits (21140) */
  382         int             sc_media_seen;  /* ISV media block types seen */
  383         int             sc_tlp_minst;   /* Tulip internal media instance */
  384         u_int32_t       sc_sia_cap;     /* SIA media capabilities (21143) */
  385 
  386         /* Reset function. */
  387         void            (*sc_reset)(struct tulip_softc *);
  388 
  389         /* Pre-init function. */
  390         void            (*sc_preinit)(struct tulip_softc *);
  391 
  392         /* Filter setup function. */
  393         void            (*sc_filter_setup)(struct tulip_softc *);
  394 
  395         /* Media status update function. */
  396         void            (*sc_statchg)(struct device *);
  397 
  398         /* Media tick function. */
  399         void            (*sc_tick)(void *);
  400         struct callout sc_tick_callout;
  401 
  402         /* Power management hooks. */
  403         int             (*sc_enable)(struct tulip_softc *);
  404         void            (*sc_disable)(struct tulip_softc *);
  405         void            (*sc_power)(struct tulip_softc *, int);
  406 
  407         /*
  408          * The Winbond 89C840F places registers 4 bytes apart, instead
  409          * of 8.
  410          */
  411         int             sc_regshift;
  412 
  413         u_int32_t       sc_busmode;     /* copy of CSR_BUSMODE */
  414         u_int32_t       sc_opmode;      /* copy of CSR_OPMODE */
  415         u_int32_t       sc_inten;       /* copy of CSR_INTEN */
  416 
  417         u_int32_t       sc_rxint_mask;  /* mask of Rx interrupts we want */
  418         u_int32_t       sc_txint_mask;  /* mask of Tx interrupts we want */
  419 
  420         u_int32_t       sc_filtmode;    /* filter mode we're using */
  421 
  422         bus_dma_segment_t sc_cdseg;     /* control data memory */
  423         int             sc_cdnseg;      /* number of segments */
  424         bus_dmamap_t sc_cddmamap;       /* control data DMA map */
  425 #define sc_cddma        sc_cddmamap->dm_segs[0].ds_addr
  426 
  427         /*
  428          * Software state for transmit and receive descriptors.
  429          */
  430         struct tulip_txsoft sc_txsoft[TULIP_TXQUEUELEN];
  431         struct tulip_rxsoft sc_rxsoft[TULIP_NRXDESC];
  432 
  433         /*
  434          * Control data structures.
  435          */
  436         struct tulip_control_data *sc_control_data;
  437 #define sc_txdescs      sc_control_data->tcd_txdescs
  438 #define sc_rxdescs      sc_control_data->tcd_rxdescs
  439 #define sc_setup_desc   sc_control_data->tcd_setup_desc
  440 
  441         int     sc_txfree;              /* number of free Tx descriptors */
  442         int     sc_txnext;              /* next ready Tx descriptor */
  443         int     sc_ntxsegs;             /* number of transmit segs per pkt */
  444 
  445         u_int32_t sc_tdctl_ch;          /* conditional desc chaining */
  446         u_int32_t sc_tdctl_er;          /* conditional desc end-of-ring */
  447 
  448         u_int32_t sc_setup_fsls;        /* FS|LS on setup descriptor */
  449 
  450         struct tulip_txsq sc_txfreeq;   /* free Tx descsofts */
  451         struct tulip_txsq sc_txdirtyq;  /* dirty Tx descsofts */
  452 
  453         short   sc_if_flags;
  454 
  455         int     sc_rxptr;               /* next ready RX descriptor/descsoft */
  456 
  457 #if NRND > 0
  458         rndsource_element_t sc_rnd_source; /* random source */
  459 #endif
  460 };
  461 #endif
  462 
  463 /* sc_flags */
  464 #define TULIPF_WANT_SETUP       0x00000001      /* want filter setup */
  465 #define TULIPF_DOING_SETUP      0x00000002      /* doing multicast setup */
  466 #define TULIPF_HAS_MII          0x00000004      /* has media on MII */
  467 #define TULIPF_IC_FS            0x00000008      /* IC bit on first tx seg */
  468 #define TULIPF_MRL              0x00000010      /* memory read line okay */
  469 #define TULIPF_MRM              0x00000020      /* memory read multi okay */
  470 #define TULIPF_MWI              0x00000040      /* memory write inval okay */
  471 #define TULIPF_AUTOPOLL         0x00000080      /* chip supports auto-poll */
  472 #define TULIPF_LINK_UP          0x00000100      /* link is up (non-MII) */
  473 #define TULIPF_LINK_VALID       0x00000200      /* link state valid */
  474 #define TULIPF_DOINGAUTO        0x00000400      /* doing autoneg (non-MII) */
  475 #define TULIPF_ATTACHED         0x00000800      /* attach has succeeded */
  476 #define TULIPF_ENABLED          0x00001000      /* chip is enabled */
  477 #define TULIPF_BLE              0x00002000      /* data is big endian */
  478 #define TULIPF_DBO              0x00004000      /* descriptor is big endian */
  479 #define TULIPF_VPC              0x00008000      /* Virtual PC Ethernet */
  480 
  481 #define TULIP_IS_ENABLED(sc)    ((sc)->sc_flags & TULIPF_ENABLED)
  482 
  483 /*
  484  * This macro returns the current media entry.
  485  */
  486 #define TULIP_CURRENT_MEDIA(sc) ((sc)->sc_mii.mii_media.ifm_cur)
  487 
  488 /*
  489  * This macro determines if a change to media-related OPMODE bits requires
  490  * a chip reset.
  491  */
  492 #define TULIP_MEDIA_NEEDSRESET(sc, newbits)                             \
  493         (((sc)->sc_opmode & OPMODE_MEDIA_BITS) !=                       \
  494          ((newbits) & OPMODE_MEDIA_BITS))
  495 
  496 #define TULIP_CDTXADDR(sc, x)   ((sc)->sc_cddma + TULIP_CDTXOFF((x)))
  497 #define TULIP_CDRXADDR(sc, x)   ((sc)->sc_cddma + TULIP_CDRXOFF((x)))
  498 
  499 #define TULIP_CDSPADDR(sc)      ((sc)->sc_cddma + TULIP_CDSPOFF)
  500 
  501 #define TULIP_CDSP(sc)          ((sc)->sc_control_data->tcd_setup_packet)
  502 
  503 #define TULIP_CDTXSYNC(sc, x, n, ops)                                   \
  504 do {                                                                    \
  505         int __x, __n;                                                   \
  506                                                                         \
  507         __x = (x);                                                      \
  508         __n = (n);                                                      \
  509                                                                         \
  510         /* If it will wrap around, sync to the end of the ring. */      \
  511         if ((__x + __n) > TULIP_NTXDESC) {                              \
  512                 bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,       \
  513                     TULIP_CDTXOFF(__x), sizeof(struct tulip_desc) *     \
  514                     (TULIP_NTXDESC - __x), (ops));                      \
  515                 __n -= (TULIP_NTXDESC - __x);                           \
  516                 __x = 0;                                                \
  517         }                                                               \
  518                                                                         \
  519         /* Now sync whatever is left. */                                \
  520         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,               \
  521             TULIP_CDTXOFF(__x), sizeof(struct tulip_desc) * __n, (ops)); \
  522 } while (0)
  523 
  524 #define TULIP_CDRXSYNC(sc, x, ops)                                      \
  525         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,               \
  526             TULIP_CDRXOFF((x)), sizeof(struct tulip_desc), (ops))
  527 
  528 #define TULIP_CDSPSYNC(sc, ops)                                         \
  529         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,               \
  530             TULIP_CDSPOFF, TULIP_SETUP_PACKET_LEN, (ops))
  531 
  532 /*
  533  * Note we rely on MCLBYTES being a power of two.  Because the `length'
  534  * field is only 11 bits, we must subtract 1 from the length to avoid
  535  * having it truncated to 0!
  536  */
  537 #define TULIP_INIT_RXDESC(sc, x)                                        \
  538 do {                                                                    \
  539         struct tulip_rxsoft *__rxs = &sc->sc_rxsoft[(x)];               \
  540         struct tulip_desc *__rxd = &sc->sc_rxdescs[(x)];                \
  541         struct mbuf *__m = __rxs->rxs_mbuf;                             \
  542                                                                         \
  543         __m->m_data = __m->m_ext.ext_buf;                               \
  544         __rxd->td_bufaddr1 =                                            \
  545             htole32(__rxs->rxs_dmamap->dm_segs[0].ds_addr);             \
  546         __rxd->td_bufaddr2 =                                            \
  547             htole32(TULIP_CDRXADDR((sc), TULIP_NEXTRX((x))));           \
  548         __rxd->td_ctl =                                                 \
  549             htole32((((__m->m_ext.ext_size - 1) & ~0x3U)                \
  550             << TDCTL_SIZE1_SHIFT) | (sc)->sc_tdctl_ch |                 \
  551             ((x) == (TULIP_NRXDESC - 1) ? sc->sc_tdctl_er : 0));        \
  552         __rxd->td_status = htole32(TDSTAT_OWN|TDSTAT_Rx_FS|TDSTAT_Rx_LS); \
  553         TULIP_CDRXSYNC((sc), (x), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); \
  554 } while (0)
  555 
  556 /* CSR access */
  557 #define TULIP_CSR_OFFSET(sc, csr)                                       \
  558         (TULIP_CSR_INDEX(csr) << (sc)->sc_regshift)
  559 
  560 #define TULIP_READ(sc, reg)                                             \
  561         bus_space_read_4((sc)->sc_st, (sc)->sc_sh,                      \
  562             TULIP_CSR_OFFSET((sc), (reg)))
  563 
  564 #define TULIP_WRITE(sc, reg, val)                                       \
  565         bus_space_write_4((sc)->sc_st, (sc)->sc_sh,                     \
  566             TULIP_CSR_OFFSET((sc), (reg)), (val))
  567 
  568 #define TULIP_SET(sc, reg, mask)                                        \
  569         TULIP_WRITE((sc), (reg), TULIP_READ((sc), (reg)) | (mask))
  570 
  571 #define TULIP_CLR(sc, reg, mask)                                        \
  572         TULIP_WRITE((sc), (reg), TULIP_READ((sc), (reg)) & ~(mask))
  573 
  574 #define TULIP_ISSET(sc, reg, mask)                                      \
  575         (TULIP_READ((sc), (reg)) & (mask))
  576 
  577 #if BYTE_ORDER == BIG_ENDIAN
  578 #define TULIP_SP_FIELD_C(x)     ((x) << 16)
  579 #else
  580 #define TULIP_SP_FIELD_C(x)     (x)
  581 #endif
  582 #define TULIP_SP_FIELD(x, f)    TULIP_SP_FIELD_C(((u_int16_t *)(x))[(f)])
  583 
  584 #ifdef _KERNEL
  585 extern const char * const tlp_chip_names[];
  586 
  587 extern const struct tulip_mediasw tlp_21040_mediasw;
  588 extern const struct tulip_mediasw tlp_21040_tp_mediasw;
  589 extern const struct tulip_mediasw tlp_21040_auibnc_mediasw;
  590 extern const struct tulip_mediasw tlp_21041_mediasw;
  591 extern const struct tulip_mediasw tlp_2114x_isv_mediasw;
  592 extern const struct tulip_mediasw tlp_sio_mii_mediasw;
  593 extern const struct tulip_mediasw tlp_pnic_mediasw;
  594 extern const struct tulip_mediasw tlp_pmac_mediasw;
  595 extern const struct tulip_mediasw tlp_al981_mediasw;
  596 extern const struct tulip_mediasw tlp_an985_mediasw;
  597 extern const struct tulip_mediasw tlp_dm9102_mediasw;
  598 extern const struct tulip_mediasw tlp_asix_mediasw;
  599 
  600 void    tlp_attach(struct tulip_softc *, const u_int8_t *);
  601 int     tlp_activate(struct device *, enum devact);
  602 int     tlp_detach(struct tulip_softc *);
  603 int     tlp_intr(void *);
  604 int     tlp_read_srom(struct tulip_softc *);
  605 int     tlp_srom_crcok(const u_int8_t *);
  606 int     tlp_isv_srom(const u_int8_t *);
  607 int     tlp_isv_srom_enaddr(struct tulip_softc *, u_int8_t *);
  608 int     tlp_parse_old_srom(struct tulip_softc *, u_int8_t *);
  609 void    tlp_reset(struct tulip_softc *);
  610 
  611 int     tlp_mediachange(struct ifnet *);
  612 void    tlp_mediastatus(struct ifnet *, struct ifmediareq *);
  613 
  614 void    tlp_21140_gpio_get(struct tulip_softc *sc, struct ifmediareq *ifmr);
  615 int     tlp_21140_gpio_set(struct tulip_softc *sc);
  616 
  617 #endif /* _KERNEL */
  618 
  619 #endif /* _DEV_IC_TULIPVAR_H_ */

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