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      1 /*	$NetBSD: tulipvar.h,v 1.70 2019/09/13 07:55:06 msaitoh 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  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #ifndef _DEV_IC_TULIPVAR_H_
     34 #define	_DEV_IC_TULIPVAR_H_
     35 
     36 #include <sys/queue.h>
     37 #include <sys/callout.h>
     38 
     39 #include <sys/rndsource.h>
     40 
     41 /*
     42  * Misc. definitions for the Digital Semiconductor ``Tulip'' (21x4x)
     43  * Ethernet controller family driver.
     44  */
     45 
     46 /*
     47  * Transmit descriptor list size.  This is arbitrary, but allocate
     48  * enough descriptors for 64 pending transmissions and 16 segments
     49  * per packet.  Since a descriptor holds 2 buffer addresses, that's
     50  * 8 descriptors per packet.  This MUST work out to a power of 2.
     51  */
     52 #define	TULIP_NTXSEGS		16
     53 
     54 #define	TULIP_TXQUEUELEN	64
     55 #define	TULIP_NTXDESC		(TULIP_TXQUEUELEN * TULIP_NTXSEGS)
     56 #define	TULIP_NTXDESC_MASK	(TULIP_NTXDESC - 1)
     57 #define	TULIP_NEXTTX(x)		((x + 1) & TULIP_NTXDESC_MASK)
     58 
     59 /*
     60  * Receive descriptor list size.  We have one Rx buffer per incoming
     61  * packet, so this logic is a little simpler.
     62  */
     63 #define	TULIP_NRXDESC		64
     64 #define	TULIP_NRXDESC_MASK	(TULIP_NRXDESC - 1)
     65 #define	TULIP_NEXTRX(x)		((x + 1) & TULIP_NRXDESC_MASK)
     66 
     67 /*
     68  * Control structures are DMA'd to the TULIP chip.  We allocate them in
     69  * a single clump that maps to a single DMA segment to make several things
     70  * easier.
     71  */
     72 struct tulip_control_data {
     73 	/*
     74 	 * The transmit descriptors.
     75 	 */
     76 	struct tulip_desc tcd_txdescs[TULIP_NTXDESC];
     77 
     78 	/*
     79 	 * The receive descriptors.
     80 	 */
     81 	struct tulip_desc tcd_rxdescs[TULIP_NRXDESC];
     82 
     83 	/*
     84 	 * The setup packet.
     85 	 */
     86 	uint32_t tcd_setup_packet[TULIP_SETUP_PACKET_LEN / sizeof(uint32_t)];
     87 };
     88 
     89 #define	TULIP_CDOFF(x)		offsetof(struct tulip_control_data, x)
     90 #define	TULIP_CDTXOFF(x)	TULIP_CDOFF(tcd_txdescs[(x)])
     91 #define	TULIP_CDRXOFF(x)	TULIP_CDOFF(tcd_rxdescs[(x)])
     92 #define	TULIP_CDSPOFF		TULIP_CDOFF(tcd_setup_packet)
     93 
     94 /*
     95  * Software state for transmit jobs.
     96  */
     97 struct tulip_txsoft {
     98 	struct mbuf *txs_mbuf;		/* head of our mbuf chain */
     99 	bus_dmamap_t txs_dmamap;	/* our DMA map */
    100 	int txs_firstdesc;		/* first descriptor in packet */
    101 	int txs_lastdesc;		/* last descriptor in packet */
    102 	int txs_ndescs;			/* number of descriptors */
    103 	SIMPLEQ_ENTRY(tulip_txsoft) txs_q;
    104 };
    105 
    106 SIMPLEQ_HEAD(tulip_txsq, tulip_txsoft);
    107 
    108 /*
    109  * Software state for receive jobs.
    110  */
    111 struct tulip_rxsoft {
    112 	struct mbuf *rxs_mbuf;		/* head of our mbuf chain */
    113 	bus_dmamap_t rxs_dmamap;	/* our DMA map */
    114 };
    115 
    116 /*
    117  * Type of Tulip chip we're dealing with.
    118  */
    119 typedef enum {
    120 	TULIP_CHIP_INVALID   = 0,	/* invalid chip type */
    121 	TULIP_CHIP_DE425     = 1,	/* DE-425 EISA */
    122 	TULIP_CHIP_21040     = 2,	/* DECchip 21040 */
    123 	TULIP_CHIP_21041     = 3,	/* DECchip 21041 */
    124 	TULIP_CHIP_21140     = 4,	/* DECchip 21140 */
    125 	TULIP_CHIP_21140A    = 5,	/* DECchip 21140A */
    126 	TULIP_CHIP_21142     = 6,	/* DECchip 21142 */
    127 	TULIP_CHIP_21143     = 7,	/* DECchip 21143 */
    128 	TULIP_CHIP_82C168    = 8,	/* Lite-On 82C168 PNIC */
    129 	TULIP_CHIP_82C169    = 9,	/* Lite-On 82C169 PNIC */
    130 	TULIP_CHIP_82C115    = 10,	/* Lite-On 82C115 PNIC II */
    131 	TULIP_CHIP_MX98713   = 11,	/* Macronix 98713 PMAC */
    132 	TULIP_CHIP_MX98713A  = 12,	/* Macronix 98713A PMAC */
    133 	TULIP_CHIP_MX98715   = 13,	/* Macronix 98715 PMAC */
    134 	TULIP_CHIP_MX98715A  = 14,	/* Macronix 98715A PMAC */
    135 	TULIP_CHIP_MX98715AEC_X = 15,	/* Macronix 98715AEC-C, -E PMAC */
    136 	TULIP_CHIP_MX98725   = 16,	/* Macronix 98725 PMAC */
    137 	TULIP_CHIP_WB89C840F = 17,	/* Winbond 89C840F */
    138 	TULIP_CHIP_DM9102    = 18,	/* Davicom DM9102 */
    139 	TULIP_CHIP_DM9102A   = 19,	/* Davicom DM9102A */
    140 	TULIP_CHIP_AL981     = 20,	/* ADMtek AL981 */
    141 	TULIP_CHIP_AN983     = 21,	/* ADMtek AN983 */
    142 	TULIP_CHIP_AN985     = 22,	/* ADMtek AN985 */
    143 	TULIP_CHIP_AX88140   = 23,	/* ASIX AX88140 */
    144 	TULIP_CHIP_AX88141   = 24,	/* ASIX AX88141 */
    145 	TULIP_CHIP_X3201_3   = 25,	/* Xircom X3201-3 */
    146 	TULIP_CHIP_RS7112    = 26	/* Conexant RS7112 LANfinity */
    147 } tulip_chip_t;
    148 
    149 #define	TULIP_CHIP_NAMES						\
    150 {									\
    151 	NULL,								\
    152 	"DE-425",							\
    153 	"DECchip 21040",						\
    154 	"DECchip 21041",						\
    155 	"DECchip 21140",						\
    156 	"DECchip 21140A",						\
    157 	"DECchip 21142",						\
    158 	"DECchip 21143",						\
    159 	"Lite-On 82C168",						\
    160 	"Lite-On 82C169",						\
    161 	"Lite-On 82C115",						\
    162 	"Macronix MX98713",						\
    163 	"Macronix MX98713A",						\
    164 	"Macronix MX98715",						\
    165 	"Macronix MX98715A",						\
    166 	"Macronix MX98715AEC-x",					\
    167 	"Macronix MX98725",						\
    168 	"Winbond 89C840F",						\
    169 	"Davicom DM9102",						\
    170 	"Davicom DM9102A",						\
    171 	"ADMtek AL981",							\
    172 	"ADMtek AN983",							\
    173 	"ADMtek AN985",							\
    174 	"ASIX AX88140",							\
    175 	"ASIX AX88141",							\
    176 	"Xircom X3201-3",						\
    177 	"Conexant RS7112",						\
    178 }
    179 
    180 struct tulip_softc;
    181 
    182 /*
    183  * Media init, change, status function pointers.
    184  */
    185 struct tulip_mediasw {
    186 	void	(*tmsw_init)(struct tulip_softc *);
    187 	void	(*tmsw_get)(struct tulip_softc *, struct ifmediareq *);
    188 	int	(*tmsw_set)(struct tulip_softc *);
    189 };
    190 
    191 /*
    192  * Table which describes the transmit threshold mode.  We generally
    193  * start at index 0.  Whenever we get a transmit underrun, we increment
    194  * our index, falling back if we encounter the NULL terminator.
    195  */
    196 struct tulip_txthresh_tab {
    197 	uint32_t txth_opmode;		/* OPMODE bits */
    198 	const char *txth_name;		/* name of mode */
    199 };
    200 
    201 #define	TLP_TXTHRESH_TAB_10 {						\
    202 	{ OPMODE_TR_72,		"72 bytes" },				\
    203 	{ OPMODE_TR_96,		"96 bytes" },				\
    204 	{ OPMODE_TR_128,	"128 bytes" },				\
    205 	{ OPMODE_TR_160,	"160 bytes" },				\
    206 	{ 0,			NULL },					\
    207 }
    208 
    209 #define	TLP_TXTHRESH_TAB_10_100 {					\
    210 	{ OPMODE_TR_72,		"72/128 bytes" },			\
    211 	{ OPMODE_TR_96,		"96/256 bytes" },			\
    212 	{ OPMODE_TR_128,	"128/512 bytes" },			\
    213 	{ OPMODE_TR_160,	"160/1024 bytes" },			\
    214 	{ OPMODE_SF,		"store and forward mode" },		\
    215 	{ 0,			NULL },					\
    216 }
    217 
    218 #define	TXTH_72			0
    219 #define	TXTH_96			1
    220 #define	TXTH_128		2
    221 #define	TXTH_160		3
    222 #define	TXTH_SF			4
    223 
    224 #define	TLP_TXTHRESH_TAB_DM9102 {					\
    225 	{ OPMODE_TR_72,		"72/128 bytes" },			\
    226 	{ OPMODE_TR_96,		"96/256 bytes" },			\
    227 	{ OPMODE_TR_128,	"128/512 bytes" },			\
    228 	{ OPMODE_SF,		"store and forward mode" },		\
    229 	{ 0,			NULL },					\
    230 }
    231 
    232 #define	TXTH_DM9102_72		0
    233 #define	TXTH_DM9102_96		1
    234 #define	TXTH_DM9102_128		2
    235 #define	TXTH_DM9102_SF		3
    236 
    237 /*
    238  * The Winbond 89C840F does transmit threshold control totally
    239  * differently.  It simply has a 7-bit field which indicates
    240  * the threshold:
    241  *
    242  *	txth = ((OPMODE & OPMODE_WINB_TTH) >> OPMODE_WINB_TTH_SHIFT) * 16;
    243  *
    244  * However, we just do Store-and-Forward mode on these chips, since
    245  * the DMA engines seem to be flaky.
    246  */
    247 #define	TLP_TXTHRESH_TAB_WINB {						\
    248 	{ 0,			"store and forward mode" },		\
    249 	{ 0,			NULL },					\
    250 }
    251 
    252 #define	TXTH_WINB_SF		0
    253 
    254 /*
    255  * Settings for Tulip SIA media.
    256  */
    257 struct tulip_sia_media {
    258 	uint32_t	tsm_siaconn;	/* CSR13 value */
    259 	uint32_t	tsm_siatxrx;	/* CSR14 value */
    260 	uint32_t	tsm_siagen;	/* CSR15 value */
    261 };
    262 
    263 /*
    264  * Description of 2x14x media.
    265  */
    266 struct tulip_21x4x_media {
    267 	int		tm_type;	/* type of media; see tulipreg.h */
    268 	const char	*tm_name;	/* name of media */
    269 
    270 	void		(*tm_get)(struct tulip_softc *, struct ifmediareq *);
    271 	int		(*tm_set)(struct tulip_softc *);
    272 
    273 	int		tm_phyno;	/* PHY # on MII */
    274 
    275 	int		tm_gp_length;	/* MII select sequence length */
    276 	int		tm_gp_offset;	/* MII select sequence offset */
    277 
    278 	int		tm_reset_length;/* MII reset sequence length */
    279 	int		tm_reset_offset;/* MII reset sequence offset */
    280 
    281 	uint32_t	tm_opmode;	/* OPMODE bits for this media */
    282 	uint32_t	tm_gpctl;	/* GPIO control bits for this media */
    283 	uint32_t	tm_gpdata;	/* GPIO bits for this media */
    284 	uint32_t	tm_actmask;	/* `active' bits for this data */
    285 	uint32_t	tm_actdata;	/* active high/low info */
    286 
    287 	struct tulip_sia_media tm_sia;	/* SIA settings */
    288 #define	tm_siaconn	tm_sia.tsm_siaconn
    289 #define	tm_siatxrx	tm_sia.tsm_siatxrx
    290 #define	tm_siagen	tm_sia.tsm_siagen
    291 };
    292 
    293 /*
    294  * Table for converting Tulip SROM media info into ifmedia data.
    295  */
    296 struct tulip_srom_to_ifmedia {
    297 	uint8_t	tsti_srom;	/* SROM media type */
    298 	int		tsti_subtype;	/* ifmedia subtype */
    299 	int		tsti_options;	/* ifmedia options */
    300 	const char	*tsti_name;	/* media name */
    301 
    302 	uint32_t	tsti_opmode;	/* OPMODE bits for this media */
    303 	uint32_t	tsti_sia_cap;	/* "MII" capabilities for this media */
    304 
    305 	/*
    306 	 * Settings for 21040, 21041, and 21142/21143 SIA, in the event
    307 	 * the SROM doesn't have them.
    308 	 */
    309 	struct tulip_sia_media tsti_21040;
    310 	struct tulip_sia_media tsti_21041;
    311 	struct tulip_sia_media tsti_21142;
    312 };
    313 
    314 /*
    315  * Some misc. statics, useful for debugging.
    316  */
    317 struct tulip_stats {
    318 	u_long		ts_tx_uf;	/* transmit underflow errors */
    319 	u_long		ts_tx_to;	/* transmit jabber timeouts */
    320 	u_long		ts_tx_ec;	/* excessive collision count */
    321 	u_long		ts_tx_lc;	/* late collision count */
    322 };
    323 
    324 #ifndef _STANDALONE
    325 /*
    326  * Software state per device.
    327  */
    328 struct tulip_softc {
    329 	device_t sc_dev;		/* generic device information */
    330 	bus_space_tag_t sc_st;		/* bus space tag */
    331 	bus_space_handle_t sc_sh;	/* bus space handle */
    332 	bus_dma_tag_t sc_dmat;		/* bus DMA tag */
    333 	struct ethercom sc_ethercom;	/* ethernet common data */
    334 
    335 	struct tulip_stats sc_stats;	/* debugging stats */
    336 
    337 	/*
    338 	 * Contents of the SROM.
    339 	 */
    340 	uint8_t *sc_srom;
    341 	int sc_srom_addrbits;
    342 
    343 	/*
    344 	 * Media access functions for this chip.
    345 	 */
    346 	const struct tulip_mediasw *sc_mediasw;
    347 	mii_bitbang_ops_t sc_bitbang_ops;
    348 
    349 	/*
    350 	 * For chips with built-in NWay blocks, these are state
    351 	 * variables required for autonegotiation.
    352 	 */
    353 	int		sc_nway_ticks;	/* tick counter */
    354 	struct ifmedia_entry *sc_nway_active; /* the active media */
    355 	struct callout	sc_nway_callout;
    356 
    357 	tulip_chip_t	sc_chip;	/* chip type */
    358 	int		sc_rev;		/* chip revision */
    359 	int		sc_flags;	/* misc flags. */
    360 	char		sc_name[32];	/* board name */
    361 	uint32_t	sc_cacheline;	/* cache line size */
    362 	uint32_t	sc_maxburst;	/* maximum burst length */
    363 	int		sc_devno;	/* PCI device # */
    364 
    365 	struct mii_data sc_mii;		/* MII/media information */
    366 
    367 	const struct tulip_txthresh_tab *sc_txth;
    368 	int		sc_txthresh;	/* current transmit threshold */
    369 
    370 	uint8_t	sc_gp_dir;	/* GPIO pin direction bits (21140) */
    371 	int		sc_media_seen;	/* ISV media block types seen */
    372 	int		sc_tlp_minst;	/* Tulip internal media instance */
    373 	uint32_t	sc_sia_cap;	/* SIA media capabilities (21143) */
    374 
    375 	/* Reset function. */
    376 	void		(*sc_reset)(struct tulip_softc *);
    377 
    378 	/* Pre-init function. */
    379 	void		(*sc_preinit)(struct tulip_softc *);
    380 
    381 	/* Filter setup function. */
    382 	void		(*sc_filter_setup)(struct tulip_softc *);
    383 
    384 	/* Media status update function. */
    385 	void		(*sc_statchg)(struct ifnet *);
    386 
    387 	/* Media tick function. */
    388 	void		(*sc_tick)(void *);
    389 	struct callout sc_tick_callout;
    390 
    391 	/* Power management hooks. */
    392 	int		(*sc_enable)(struct tulip_softc *);
    393 	void		(*sc_disable)(struct tulip_softc *);
    394 	void		(*sc_power)(struct tulip_softc *, int);
    395 
    396 	/*
    397 	 * The Winbond 89C840F places registers 4 bytes apart, instead
    398 	 * of 8.
    399 	 */
    400 	int		sc_regshift;
    401 
    402 	uint32_t	sc_busmode;	/* copy of CSR_BUSMODE */
    403 	uint32_t	sc_opmode;	/* copy of CSR_OPMODE */
    404 	uint32_t	sc_inten;	/* copy of CSR_INTEN */
    405 
    406 	uint32_t	sc_rxint_mask;	/* mask of Rx interrupts we want */
    407 	uint32_t	sc_txint_mask;	/* mask of Tx interrupts we want */
    408 
    409 	uint32_t	sc_filtmode;	/* filter mode we're using */
    410 
    411 	bus_dma_segment_t sc_cdseg;	/* control data memory */
    412 	int		sc_cdnseg;	/* number of segments */
    413 	bus_dmamap_t sc_cddmamap;	/* control data DMA map */
    414 #define	sc_cddma	sc_cddmamap->dm_segs[0].ds_addr
    415 
    416 	/*
    417 	 * Software state for transmit and receive descriptors.
    418 	 */
    419 	struct tulip_txsoft sc_txsoft[TULIP_TXQUEUELEN];
    420 	struct tulip_rxsoft sc_rxsoft[TULIP_NRXDESC];
    421 
    422 	/*
    423 	 * Control data structures.
    424 	 */
    425 	struct tulip_control_data *sc_control_data;
    426 #define	sc_txdescs	sc_control_data->tcd_txdescs
    427 #define	sc_rxdescs	sc_control_data->tcd_rxdescs
    428 #define	sc_setup_desc	sc_control_data->tcd_setup_desc
    429 
    430 	int	sc_txfree;		/* number of free Tx descriptors */
    431 	int	sc_txnext;		/* next ready Tx descriptor */
    432 	int	sc_ntxsegs;		/* number of transmit segs per pkt */
    433 
    434 	uint32_t sc_tdctl_ch;		/* conditional desc chaining */
    435 	uint32_t sc_tdctl_er;		/* conditional desc end-of-ring */
    436 
    437 	uint32_t sc_setup_fsls;	/* FS|LS on setup descriptor */
    438 
    439 	struct tulip_txsq sc_txfreeq;	/* free Tx descsofts */
    440 	struct tulip_txsq sc_txdirtyq;	/* dirty Tx descsofts */
    441 
    442 	u_short	sc_if_flags;
    443 
    444 	int	sc_rxptr;		/* next ready RX descriptor/descsoft */
    445 
    446 	krndsource_t sc_rnd_source; /* random source */
    447 };
    448 #endif
    449 
    450 /* sc_flags */
    451 #define	TULIPF_WANT_SETUP	0x00000001	/* want filter setup */
    452 #define	TULIPF_DOING_SETUP	0x00000002	/* doing multicast setup */
    453 #define	TULIPF_HAS_MII		0x00000004	/* has media on MII */
    454 #define	TULIPF_IC_FS		0x00000008	/* IC bit on first tx seg */
    455 #define	TULIPF_MRL		0x00000010	/* memory read line okay */
    456 #define	TULIPF_MRM		0x00000020	/* memory read multi okay */
    457 #define	TULIPF_MWI		0x00000040	/* memory write inval okay */
    458 #define	TULIPF_AUTOPOLL		0x00000080	/* chip supports auto-poll */
    459 #define	TULIPF_LINK_UP		0x00000100	/* link is up (non-MII) */
    460 #define	TULIPF_LINK_VALID	0x00000200	/* link state valid */
    461 #define	TULIPF_DOINGAUTO	0x00000400	/* doing autoneg (non-MII) */
    462 #define	TULIPF_ATTACHED		0x00000800	/* attach has succeeded */
    463 #define	TULIPF_ENABLED		0x00001000	/* chip is enabled */
    464 #define	TULIPF_BLE		0x00002000	/* data is big endian */
    465 #define	TULIPF_DBO		0x00004000	/* descriptor is big endian */
    466 #define	TULIPF_VPC		0x00008000	/* Virtual PC Ethernet */
    467 
    468 #define	TULIP_IS_ENABLED(sc)	((sc)->sc_flags & TULIPF_ENABLED)
    469 
    470 /*
    471  * This macro returns the current media entry.
    472  */
    473 #define	TULIP_CURRENT_MEDIA(sc) ((sc)->sc_mii.mii_media.ifm_cur)
    474 
    475 /*
    476  * This macro determines if a change to media-related OPMODE bits requires
    477  * a chip reset.
    478  */
    479 #define	TULIP_MEDIA_NEEDSRESET(sc, newbits)				\
    480 	(((sc)->sc_opmode & OPMODE_MEDIA_BITS) !=			\
    481 	 ((newbits) & OPMODE_MEDIA_BITS))
    482 
    483 #define	TULIP_CDTXADDR(sc, x)	((sc)->sc_cddma + TULIP_CDTXOFF((x)))
    484 #define	TULIP_CDRXADDR(sc, x)	((sc)->sc_cddma + TULIP_CDRXOFF((x)))
    485 
    486 #define	TULIP_CDSPADDR(sc)	((sc)->sc_cddma + TULIP_CDSPOFF)
    487 
    488 #define	TULIP_CDSP(sc)		((sc)->sc_control_data->tcd_setup_packet)
    489 
    490 #define	TULIP_CDTXSYNC(sc, x, n, ops)					\
    491 do {									\
    492 	int __x, __n;							\
    493 									\
    494 	__x = (x);							\
    495 	__n = (n);							\
    496 									\
    497 	/* If it will wrap around, sync to the end of the ring. */	\
    498 	if ((__x + __n) > TULIP_NTXDESC) {				\
    499 		bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,	\
    500 		    TULIP_CDTXOFF(__x), sizeof(struct tulip_desc) *	\
    501 		    (TULIP_NTXDESC - __x), (ops));			\
    502 		__n -= (TULIP_NTXDESC - __x);				\
    503 		__x = 0;						\
    504 	}								\
    505 									\
    506 	/* Now sync whatever is left. */				\
    507 	bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,		\
    508 	    TULIP_CDTXOFF(__x), sizeof(struct tulip_desc) * __n, (ops)); \
    509 } while (0)
    510 
    511 #define	TULIP_CDRXSYNC(sc, x, ops)					\
    512 	bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,		\
    513 	    TULIP_CDRXOFF((x)), sizeof(struct tulip_desc), (ops))
    514 
    515 #define	TULIP_CDSPSYNC(sc, ops)						\
    516 	bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,		\
    517 	    TULIP_CDSPOFF, TULIP_SETUP_PACKET_LEN, (ops))
    518 
    519 /*
    520  * Note we rely on MCLBYTES being a power of two.  Because the `length'
    521  * field is only 11 bits, we must subtract 1 from the length to avoid
    522  * having it truncated to 0!
    523  */
    524 #define	TULIP_INIT_RXDESC(sc, x)					\
    525 do {									\
    526 	struct tulip_rxsoft *__rxs = &sc->sc_rxsoft[(x)];		\
    527 	struct tulip_desc *__rxd = &sc->sc_rxdescs[(x)];		\
    528 	struct mbuf *__m = __rxs->rxs_mbuf;				\
    529 									\
    530 	__m->m_data = __m->m_ext.ext_buf;				\
    531 	__rxd->td_bufaddr1 =						\
    532 	    htole32(__rxs->rxs_dmamap->dm_segs[0].ds_addr);		\
    533 	__rxd->td_bufaddr2 =						\
    534 	    htole32(TULIP_CDRXADDR((sc), TULIP_NEXTRX((x))));		\
    535 	__rxd->td_ctl =							\
    536 	    htole32((((__m->m_ext.ext_size - 1) & ~0x3U)		\
    537 	    << TDCTL_SIZE1_SHIFT) | (sc)->sc_tdctl_ch |			\
    538 	    ((x) == (TULIP_NRXDESC - 1) ? sc->sc_tdctl_er : 0));	\
    539 	__rxd->td_status = htole32(TDSTAT_OWN|TDSTAT_Rx_FS|TDSTAT_Rx_LS); \
    540 	TULIP_CDRXSYNC((sc), (x), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); \
    541 } while (0)
    542 
    543 /* CSR access */
    544 #define	TULIP_CSR_OFFSET(sc, csr)					\
    545 	(TULIP_CSR_INDEX(csr) << (sc)->sc_regshift)
    546 
    547 #define	TULIP_READ(sc, reg)						\
    548 	bus_space_read_4((sc)->sc_st, (sc)->sc_sh,			\
    549 	    TULIP_CSR_OFFSET((sc), (reg)))
    550 
    551 #define	TULIP_WRITE(sc, reg, val)					\
    552 	bus_space_write_4((sc)->sc_st, (sc)->sc_sh,			\
    553 	    TULIP_CSR_OFFSET((sc), (reg)), (val))
    554 
    555 #define	TULIP_SET(sc, reg, mask)					\
    556 	TULIP_WRITE((sc), (reg), TULIP_READ((sc), (reg)) | (mask))
    557 
    558 #define	TULIP_CLR(sc, reg, mask)					\
    559 	TULIP_WRITE((sc), (reg), TULIP_READ((sc), (reg)) & ~(mask))
    560 
    561 #define	TULIP_ISSET(sc, reg, mask)					\
    562 	(TULIP_READ((sc), (reg)) & (mask))
    563 
    564 #define	TULIP_SP_FIELD_C(a, b)	((b) << 8 | (a))
    565 #define	TULIP_SP_FIELD(x, f)	TULIP_SP_FIELD_C((x)[f * 2], (x)[f * 2 + 1])
    566 
    567 #ifdef _KERNEL
    568 extern const struct tulip_mediasw tlp_21040_mediasw;
    569 extern const struct tulip_mediasw tlp_21040_tp_mediasw;
    570 extern const struct tulip_mediasw tlp_21040_auibnc_mediasw;
    571 extern const struct tulip_mediasw tlp_21041_mediasw;
    572 extern const struct tulip_mediasw tlp_2114x_isv_mediasw;
    573 extern const struct tulip_mediasw tlp_sio_mii_mediasw;
    574 extern const struct tulip_mediasw tlp_pnic_mediasw;
    575 extern const struct tulip_mediasw tlp_pmac_mediasw;
    576 extern const struct tulip_mediasw tlp_al981_mediasw;
    577 extern const struct tulip_mediasw tlp_an985_mediasw;
    578 extern const struct tulip_mediasw tlp_dm9102_mediasw;
    579 extern const struct tulip_mediasw tlp_asix_mediasw;
    580 extern const struct tulip_mediasw tlp_rs7112_mediasw;
    581 
    582 int	tlp_attach(struct tulip_softc *, const uint8_t *);
    583 int	tlp_activate(device_t, enum devact);
    584 int	tlp_detach(struct tulip_softc *);
    585 int	tlp_intr(void *);
    586 int	tlp_read_srom(struct tulip_softc *);
    587 int	tlp_srom_crcok(const uint8_t *);
    588 int	tlp_isv_srom(const uint8_t *);
    589 int	tlp_isv_srom_enaddr(struct tulip_softc *, uint8_t *);
    590 int	tlp_parse_old_srom(struct tulip_softc *, uint8_t *);
    591 void	tlp_reset(struct tulip_softc *);
    592 void	tlp_idle(struct tulip_softc *, uint32_t);
    593 
    594 int	tlp_mediachange(struct ifnet *);
    595 void	tlp_mediastatus(struct ifnet *, struct ifmediareq *);
    596 
    597 void	tlp_21140_gpio_get(struct tulip_softc *sc, struct ifmediareq *ifmr);
    598 int	tlp_21140_gpio_set(struct tulip_softc *sc);
    599 const char *tlp_chip_name(tulip_chip_t);
    600 
    601 #endif /* _KERNEL */
    602 
    603 #endif /* _DEV_IC_TULIPVAR_H_ */
    604