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if_vrreg.h revision 1.2
      1 /*	$Id: if_vrreg.h,v 1.2 1999/01/21 12:00:25 sakamoto Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997, 1998
      5  *	Bill Paul <wpaul (at) ctr.columbia.edu>.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Bill Paul.
     18  * 4. Neither the name of the author nor the names of any co-contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
     26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     32  * THE POSSIBILITY OF SUCH DAMAGE.
     33  *
     34  *	$FreeBSD: if_vrreg.h,v 1.2 1999/01/10 18:51:49 wpaul Exp $
     35  */
     36 
     37 /*
     38  * Rhine register definitions.
     39  */
     40 
     41 #define	VR_PAR0			0x00	/* node address 0 to 4 */
     42 #define	VR_PAR1			0x04	/* node address 2 to 6 */
     43 #define	VR_RXCFG		0x06	/* receiver config register */
     44 #define	VR_TXCFG		0x07	/* transmit config register */
     45 #define	VR_COMMAND		0x08	/* command register */
     46 #define	VR_ISR			0x0C	/* interrupt/status register */
     47 #define	VR_IMR			0x0E	/* interrupt mask register */
     48 #define	VR_MAR0			0x10	/* multicast hash 0 */
     49 #define	VR_MAR1			0x14	/* multicast hash 1 */
     50 #define	VR_RXADDR		0x18	/* rx descriptor list start addr */
     51 #define	VR_TXADDR		0x1C	/* tx descriptor list start addr */
     52 #define	VR_CURRXDESC0		0x20
     53 #define	VR_CURRXDESC1		0x24
     54 #define	VR_CURRXDESC2		0x28
     55 #define	VR_CURRXDESC3		0x2C
     56 #define	VR_NEXTRXDESC0		0x30
     57 #define	VR_NEXTRXDESC1		0x34
     58 #define	VR_NEXTRXDESC2		0x38
     59 #define	VR_NEXTRXDESC3		0x3C
     60 #define	VR_CURTXDESC0		0x40
     61 #define	VR_CURTXDESC1		0x44
     62 #define	VR_CURTXDESC2		0x48
     63 #define	VR_CURTXDESC3		0x4C
     64 #define	VR_NEXTTXDESC0		0x50
     65 #define	VR_NEXTTXDESC1		0x54
     66 #define	VR_NEXTTXDESC2		0x58
     67 #define	VR_NEXTTXDESC3		0x5C
     68 #define	VR_CURRXDMA		0x60	/* current RX DMA address */
     69 #define	VR_CURTXDMA		0x64	/* current TX DMA address */
     70 #define	VR_TALLYCNT		0x68	/* tally counter test register */
     71 #define	VR_PHYADDR		0x6C
     72 #define	VR_MIISTAT		0x6D
     73 #define	VR_BCR0			0x6E
     74 #define	VR_BCR1			0x6F
     75 #define	VR_MIICMD		0x70
     76 #define	VR_MIIADDR		0x71
     77 #define	VR_MIIDATA		0x72
     78 #define	VR_EECSR		0x74
     79 #define	VR_TEST			0x75
     80 #define	VR_GPIO			0x76
     81 #define	VR_CONFIG		0x78
     82 #define	VR_MPA_CNT		0x7C
     83 #define	VR_CRC_CNT		0x7E
     84 
     85 /*
     86  * RX config bits.
     87  */
     88 #define	VR_RXCFG_RX_ERRPKTS	0x01
     89 #define	VR_RXCFG_RX_RUNT	0x02
     90 #define	VR_RXCFG_RX_MULTI	0x04
     91 #define	VR_RXCFG_RX_BROAD	0x08
     92 #define	VR_RXCFG_RX_PROMISC	0x10
     93 #define	VR_RXCFG_RX_THRESH	0xE0
     94 
     95 #define	VR_RXTHRESH_32BYTES	0x00
     96 #define	VR_RXTHRESH_64BYTES	0x20
     97 #define	VR_RXTHRESH_128BYTES	0x40
     98 #define	VR_RXTHRESH_256BYTES	0x60
     99 #define	VR_RXTHRESH_512BYTES	0x80
    100 #define	VR_RXTHRESH_768BYTES	0xA0
    101 #define	VR_RXTHRESH_1024BYTES	0xC0
    102 #define	VR_RXTHRESH_STORENFWD	0xE0
    103 
    104 /*
    105  * TX config bits.
    106  */
    107 #define	VR_TXCFG_RSVD0		0x01
    108 #define	VR_TXCFG_LOOPBKMODE	0x06
    109 #define	VR_TXCFG_BACKOFF	0x08
    110 #define	VR_TXCFG_RSVD1		0x10
    111 #define	VR_TXCFG_TX_THRESH	0xE0
    112 
    113 #define	VR_TXTHRESH_32BYTES	0x00
    114 #define	VR_TXTHRESH_64BYTES	0x20
    115 #define	VR_TXTHRESH_128BYTES	0x40
    116 #define	VR_TXTHRESH_256BYTES	0x60
    117 #define	VR_TXTHRESH_512BYTES	0x80
    118 #define	VR_TXTHRESH_768BYTES	0xA0
    119 #define	VR_TXTHRESH_1024BYTES	0xC0
    120 #define	VR_TXTHRESH_STORENFWD	0xE0
    121 
    122 /*
    123  * Command register bits.
    124  */
    125 #define	VR_CMD_INIT		0x0001
    126 #define	VR_CMD_START		0x0002
    127 #define	VR_CMD_STOP		0x0004
    128 #define	VR_CMD_RX_ON		0x0008
    129 #define	VR_CMD_TX_ON		0x0010
    130 #define	VR_CMD_TX_GO		0x0020
    131 #define	VR_CMD_RX_GO		0x0040
    132 #define	VR_CMD_RSVD		0x0080
    133 #define	VR_CMD_RX_EARLY		0x0100
    134 #define	VR_CMD_TX_EARLY		0x0200
    135 #define	VR_CMD_FULLDUPLEX	0x0400
    136 #define	VR_CMD_TX_NOPOLL	0x0800
    137 
    138 #define	VR_CMD_RESET		0x8000
    139 
    140 /*
    141  * Interrupt status bits.
    142  */
    143 #define	VR_ISR_RX_OK		0x0001	/* packet rx ok */
    144 #define	VR_ISR_TX_OK		0x0002	/* packet tx ok */
    145 #define	VR_ISR_RX_ERR		0x0004	/* packet rx with err */
    146 #define	VR_ISR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
    147 #define	VR_ISR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
    148 #define	VR_ISR_RX_NOBUF		0x0020	/* no rx buffer available */
    149 #define	VR_ISR_BUSERR		0x0040	/* PCI bus error */
    150 #define	VR_ISR_STATSOFLOW	0x0080	/* stats counter oflow */
    151 #define	VR_ISR_RX_EARLY		0x0100	/* rx early */
    152 #define	VR_ISR_LINKSTAT		0x0200	/* MII status change */
    153 #define	VR_ISR_RX_OFLOW		0x0400	/* rx FIFO overflow */
    154 #define	VR_ISR_RX_DROPPED	0x0800
    155 #define	VR_ISR_RX_NOBUF2	0x1000
    156 #define	VR_ISR_TX_ABRT2		0x2000
    157 #define	VR_ISR_LINKSTAT2	0x4000
    158 #define	VR_ISR_MAGICPACKET	0x8000
    159 
    160 /*
    161  * Interrupt mask bits.
    162  */
    163 #define	VR_IMR_RX_OK		0x0001	/* packet rx ok */
    164 #define	VR_IMR_TX_OK		0x0002	/* packet tx ok */
    165 #define	VR_IMR_RX_ERR		0x0004	/* packet rx with err */
    166 #define	VR_IMR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
    167 #define	VR_IMR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
    168 #define	VR_IMR_RX_NOBUF		0x0020	/* no rx buffer available */
    169 #define	VR_IMR_BUSERR		0x0040	/* PCI bus error */
    170 #define	VR_IMR_STATSOFLOW	0x0080	/* stats counter oflow */
    171 #define	VR_IMR_RX_EARLY		0x0100	/* rx early */
    172 #define	VR_IMR_LINKSTAT		0x0200	/* MII status change */
    173 #define	VR_IMR_RX_OFLOW		0x0400	/* rx FIFO overflow */
    174 #define	VR_IMR_RX_DROPPED	0x0800
    175 #define	VR_IMR_RX_NOBUF2	0x1000
    176 #define	VR_IMR_TX_ABRT2		0x2000
    177 #define	VR_IMR_LINKSTAT2	0x4000
    178 #define	VR_IMR_MAGICPACKET	0x8000
    179 
    180 #define	VR_INTRS							\
    181 	(VR_IMR_RX_OK|VR_IMR_TX_OK|VR_IMR_RX_NOBUF|			\
    182 	VR_IMR_TX_ABRT|VR_IMR_TX_UNDERRUN|VR_IMR_BUSERR|		\
    183 	VR_IMR_RX_ERR|VR_ISR_RX_DROPPED)
    184 
    185 /*
    186  * MII status register.
    187  */
    188 
    189 #define	VR_MIISTAT_SPEED	0x01
    190 #define	VR_MIISTAT_LINKFAULT	0x02
    191 #define	VR_MIISTAT_MGTREADERR	0x04
    192 #define	VR_MIISTAT_MIIERR	0x08
    193 #define	VR_MIISTAT_PHYOPT	0x10
    194 #define	VR_MIISTAT_MDC_SPEED	0x20
    195 #define	VR_MIISTAT_RSVD		0x40
    196 #define	VR_MIISTAT_GPIO1POLL	0x80
    197 
    198 /*
    199  * MII command register bits.
    200  */
    201 #define	VR_MIICMD_CLK		0x01
    202 #define	VR_MIICMD_DATAOUT	0x02
    203 #define	VR_MIICMD_DATAIN	0x04
    204 #define	VR_MIICMD_DIR		0x08
    205 #define	VR_MIICMD_DIRECTPGM	0x10
    206 #define	VR_MIICMD_WRITE_ENB	0x20
    207 #define	VR_MIICMD_READ_ENB	0x40
    208 #define	VR_MIICMD_AUTOPOLL	0x80
    209 
    210 /*
    211  * EEPROM control bits.
    212  */
    213 #define	VR_EECSR_DATAIN		0x01	/* data out */
    214 #define	VR_EECSR_DATAOUT	0x02	/* data in */
    215 #define	VR_EECSR_CLK		0x04	/* clock */
    216 #define	VR_EECSR_CS		0x08	/* chip select */
    217 #define	VR_EECSR_DPM		0x10
    218 #define	VR_EECSR_LOAD		0x20
    219 #define	VR_EECSR_EMBP		0x40
    220 #define	VR_EECSR_EEPR		0x80
    221 
    222 #define	VR_EECMD_WRITE		0x140
    223 #define	VR_EECMD_READ		0x180
    224 #define	VR_EECMD_ERASE		0x1c0
    225 
    226 /*
    227  * Test register bits.
    228  */
    229 #define	VR_TEST_TEST0		0x01
    230 #define	VR_TEST_TEST1		0x02
    231 #define	VR_TEST_TEST2		0x04
    232 #define	VR_TEST_TSTUD		0x08
    233 #define	VR_TEST_TSTOV		0x10
    234 #define	VR_TEST_BKOFF		0x20
    235 #define	VR_TEST_FCOL		0x40
    236 #define	VR_TEST_HBDES		0x80
    237 
    238 /*
    239  * Config register bits.
    240  */
    241 #define	VR_CFG_GPIO2OUTENB	0x00000001
    242 #define	VR_CFG_GPIO2OUT		0x00000002	/* gen. purp. pin */
    243 #define	VR_CFG_GPIO2IN		0x00000004	/* gen. purp. pin */
    244 #define	VR_CFG_AUTOOPT		0x00000008	/* enable rx/tx autopoll */
    245 #define	VR_CFG_MIIOPT		0x00000010
    246 #define	VR_CFG_MMIENB		0x00000020	/* memory mapped mode enb */
    247 #define	VR_CFG_JUMPER		0x00000040	/* PHY and oper. mode select */
    248 #define	VR_CFG_EELOAD		0x00000080	/* enable EEPROM programming */
    249 #define	VR_CFG_LATMENB		0x00000100	/* larency timer effect enb. */
    250 #define	VR_CFG_MRREADWAIT	0x00000200
    251 #define	VR_CFG_MRWRITEWAIT	0x00000400
    252 #define	VR_CFG_RX_ARB		0x00000800
    253 #define	VR_CFG_TX_ARB		0x00001000
    254 #define	VR_CFG_READMULTI	0x00002000
    255 #define	VR_CFG_TX_PACE		0x00004000
    256 #define	VR_CFG_TX_QDIS		0x00008000
    257 #define	VR_CFG_ROMSEL0		0x00010000
    258 #define	VR_CFG_ROMSEL1		0x00020000
    259 #define	VR_CFG_ROMSEL2		0x00040000
    260 #define	VR_CFG_ROMTIMESEL	0x00080000
    261 #define	VR_CFG_RSVD0		0x00100000
    262 #define	VR_CFG_ROMDLY		0x00200000
    263 #define	VR_CFG_ROMOPT		0x00400000
    264 #define	VR_CFG_RSVD1		0x00800000
    265 #define	VR_CFG_BACKOFFOPT	0x01000000
    266 #define	VR_CFG_BACKOFFMOD	0x02000000
    267 #define	VR_CFG_CAPEFFECT	0x04000000
    268 #define	VR_CFG_BACKOFFRAND	0x08000000
    269 #define	VR_CFG_MAGICKPACKET	0x10000000
    270 #define	VR_CFG_PCIREADLINE	0x20000000
    271 #define	VR_CFG_DIAG		0x40000000
    272 #define	VR_CFG_GPIOEN		0x80000000
    273 
    274 /*
    275  * Rhine TX/RX list structure.
    276  */
    277 
    278 struct vr_desc {
    279 	u_int32_t		vr_status;
    280 	u_int32_t		vr_ctl;
    281 	u_int32_t		vr_ptr1;
    282 	u_int32_t		vr_ptr2;
    283 };
    284 
    285 #define	vr_data		vr_ptr1
    286 #define	vr_next		vr_ptr2
    287 
    288 
    289 #define	VR_RXSTAT_RXERR		0x00000001
    290 #define	VR_RXSTAT_CRCERR	0x00000002
    291 #define	VR_RXSTAT_FRAMEALIGNERR	0x00000004
    292 #define	VR_RXSTAT_FIFOOFLOW	0x00000008
    293 #define	VR_RXSTAT_GIANT		0x00000010
    294 #define	VR_RXSTAT_RUNT		0x00000020
    295 #define	VR_RXSTAT_BUSERR	0x00000040
    296 #define	VR_RXSTAT_BUFFERR	0x00000080
    297 #define	VR_RXSTAT_LASTFRAG	0x00000100
    298 #define	VR_RXSTAT_FIRSTFRAG	0x00000200
    299 #define	VR_RXSTAT_RLINK		0x00000400
    300 #define	VR_RXSTAT_RX_PHYS	0x00000800
    301 #define	VR_RXSTAT_RX_BROAD	0x00001000
    302 #define	VR_RXSTAT_RX_MULTI	0x00002000
    303 #define	VR_RXSTAT_RX_OK		0x00004000
    304 #define	VR_RXSTAT_RXLEN		0x07FF0000
    305 #define	VR_RXSTAT_RXLEN_EXT	0x78000000
    306 #define	VR_RXSTAT_OWN		0x80000000
    307 
    308 #define	VR_RXBYTES(x)		((x & VR_RXSTAT_RXLEN) >> 16)
    309 #define	VR_RXSTAT (VR_RXSTAT_FIRSTFRAG|VR_RXSTAT_LASTFRAG|VR_RXSTAT_OWN)
    310 
    311 #define	VR_RXCTL_BUFLEN		0x000007FF
    312 #define	VR_RXCTL_BUFLEN_EXT	0x00007800
    313 #define	VR_RXCTL_CHAIN		0x00008000
    314 #define	VR_RXCTL_RX_INTR	0x00800000
    315 
    316 #define	VR_RXCTL (VR_RXCTL_CHAIN|VR_RXCTL_RX_INTR)
    317 
    318 #define	VR_TXSTAT_DEFER		0x00000001
    319 #define	VR_TXSTAT_UNDERRUN	0x00000002
    320 #define	VR_TXSTAT_COLLCNT	0x00000078
    321 #define	VR_TXSTAT_SQE		0x00000080
    322 #define	VR_TXSTAT_ABRT		0x00000100
    323 #define	VR_TXSTAT_LATECOLL	0x00000200
    324 #define	VR_TXSTAT_CARRLOST	0x00000400
    325 #define	VR_TXSTAT_BUSERR	0x00002000
    326 #define	VR_TXSTAT_JABTIMEO	0x00004000
    327 #define	VR_TXSTAT_ERRSUM	0x00008000
    328 #define	VR_TXSTAT_OWN		0x80000000
    329 
    330 #define	VR_TXCTL_BUFLEN		0x000007FF
    331 #define	VR_TXCTL_BUFLEN_EXT	0x00007800
    332 #define	VR_TXCTL_TLINK		0x00008000
    333 #define	VR_TXCTL_FIRSTFRAG	0x00200000
    334 #define	VR_TXCTL_LASTFRAG	0x00400000
    335 #define	VR_TXCTL_FINT		0x00800000
    336 
    337 
    338 #define	VR_MAXFRAGS		16
    339 #define	VR_RX_LIST_CNT		64
    340 #define	VR_TX_LIST_CNT		64
    341 #define	VR_MIN_FRAMELEN		60
    342 #define	VR_FRAMELEN		1536
    343 #define	VR_RXLEN		1520
    344 
    345 #define	VR_TXOWN(x)		x->vr_ptr->vr_status
    346 
    347 struct vr_list_data {
    348 	struct vr_desc		vr_rx_list[VR_RX_LIST_CNT];
    349 	struct vr_desc		vr_tx_list[VR_TX_LIST_CNT];
    350 };
    351 
    352 struct vr_chain {
    353 	struct vr_desc		*vr_ptr;
    354 	struct mbuf		*vr_mbuf;
    355 	struct vr_chain		*vr_nextdesc;
    356 };
    357 
    358 struct vr_chain_onefrag {
    359 	struct vr_desc		*vr_ptr;
    360 	struct mbuf		*vr_mbuf;
    361 	struct vr_chain_onefrag	*vr_nextdesc;
    362 };
    363 
    364 struct vr_chain_data {
    365 	struct vr_chain_onefrag	vr_rx_chain[VR_RX_LIST_CNT];
    366 	struct vr_chain		vr_tx_chain[VR_TX_LIST_CNT];
    367 
    368 	struct vr_chain_onefrag	*vr_rx_head;
    369 
    370 	struct vr_chain		*vr_tx_head;
    371 	struct vr_chain		*vr_tx_tail;
    372 	struct vr_chain		*vr_tx_free;
    373 };
    374 
    375 struct vr_type {
    376 #if defined(__NetBSD__)
    377 	pci_vendor_id_t		vr_vid;
    378 	pci_product_id_t	vr_did;
    379 #else
    380 	u_int16_t		vr_vid;
    381 	u_int16_t		vr_did;
    382 #endif
    383 	char			*vr_name;
    384 };
    385 
    386 struct vr_mii_frame {
    387 	u_int8_t		mii_stdelim;
    388 	u_int8_t		mii_opcode;
    389 	u_int8_t		mii_phyaddr;
    390 	u_int8_t		mii_regaddr;
    391 	u_int8_t		mii_turnaround;
    392 	u_int16_t		mii_data;
    393 };
    394 
    395 /*
    396  * MII constants
    397  */
    398 #define	VR_MII_STARTDELIM	0x01
    399 #define	VR_MII_READOP		0x02
    400 #define	VR_MII_WRITEOP		0x01
    401 #define	VR_MII_TURNAROUND	0x02
    402 
    403 #define	VR_FLAG_FORCEDELAY	1
    404 #define	VR_FLAG_SCHEDDELAY	2
    405 #define	VR_FLAG_DELAYTIMEO	3
    406 
    407 struct vr_softc {
    408 #if defined(__NetBSD__)
    409 	struct device		vr_dev;
    410 	void			*vr_ih;
    411 	void			*vr_ats;
    412 	bus_space_tag_t		vr_bustag;
    413 	bus_space_handle_t	vr_bushandle;
    414 	pci_chipset_tag_t	vr_pc;
    415 	struct ethercom		vr_ec;
    416 	u_int8_t 		vr_enaddr[ETHER_ADDR_LEN];
    417 #else
    418 	struct arpcom		arpcom;		/* interface info */
    419 #endif
    420 	struct ifmedia		ifmedia;	/* media info */
    421 	bus_space_handle_t	vr_bhandle;	/* bus space handle */
    422 	bus_space_tag_t		vr_btag;	/* bus space tag */
    423 	struct vr_type		*vr_info;	/* Rhine adapter info */
    424 	struct vr_type		*vr_pinfo;	/* phy info */
    425 	u_int8_t		vr_unit;	/* interface number */
    426 	u_int8_t		vr_type;
    427 	u_int8_t		vr_phy_addr;	/* PHY address */
    428 	u_int8_t		vr_tx_pend;	/* TX pending */
    429 	u_int8_t		vr_want_auto;
    430 	u_int8_t		vr_autoneg;
    431 	caddr_t			vr_ldata_ptr;
    432 	struct vr_list_data	*vr_ldata;
    433 	struct vr_chain_data	vr_cdata;
    434 };
    435 
    436 #if defined(__NetBSD__)
    437 #define	vr_if			vr_ec.ec_if
    438 #define	vr_enaddr		vr_enaddr
    439 #define	vr_xname		vr_if.if_xname
    440 #define	VR_PRINTF_FMT		"%s"
    441 #define	VR_PRINTF_ARGS		sc->vr_xname
    442 #else
    443 #define	vr_if			arpcom.ac_if
    444 #define	vr_enaddr		arpcom.ac_enaddr
    445 #define	VR_PRINTF_FMT		"vr%d"
    446 #define	VR_PRINTF_ARGS		sc->vr_unit
    447 #endif
    448 
    449 /*
    450  * register space access macros
    451  */
    452 #define	CSR_WRITE_4(sc, reg, val)	\
    453 	bus_space_write_4(sc->vr_btag, sc->vr_bhandle, reg, val)
    454 #define	CSR_WRITE_2(sc, reg, val)	\
    455 	bus_space_write_2(sc->vr_btag, sc->vr_bhandle, reg, val)
    456 #define	CSR_WRITE_1(sc, reg, val)	\
    457 	bus_space_write_1(sc->vr_btag, sc->vr_bhandle, reg, val)
    458 
    459 #define	CSR_READ_4(sc, reg)		\
    460 	bus_space_read_4(sc->vr_btag, sc->vr_bhandle, reg)
    461 #define	CSR_READ_2(sc, reg)		\
    462 	bus_space_read_2(sc->vr_btag, sc->vr_bhandle, reg)
    463 #define	CSR_READ_1(sc, reg)		\
    464 	bus_space_read_1(sc->vr_btag, sc->vr_bhandle, reg)
    465 
    466 #define	VR_TIMEOUT		1000
    467 
    468 /*
    469  * General constants that are fun to know.
    470  *
    471  * VIA vendor ID
    472  */
    473 #define	VIA_VENDORID		0x1106
    474 
    475 /*
    476  * VIA Rhine device IDs.
    477  */
    478 #define	VIA_DEVICEID_RHINE	0x3043
    479 #define	VIA_DEVICEID_RHINE_II	0x6100
    480 
    481 
    482 /*
    483  * Texas Instruments PHY identifiers
    484  */
    485 #define	TI_PHY_VENDORID		0x4000
    486 #define	TI_PHY_10BT		0x501F
    487 #define	TI_PHY_100VGPMI		0x502F
    488 
    489 /*
    490  * These ID values are for the NS DP83840A 10/100 PHY
    491  */
    492 #define	NS_PHY_VENDORID		0x2000
    493 #define	NS_PHY_83840A		0x5C0F
    494 
    495 /*
    496  * Level 1 10/100 PHY
    497  */
    498 #define	LEVEL1_PHY_VENDORID	0x7810
    499 #define	LEVEL1_PHY_LXT970	0x000F
    500 
    501 /*
    502  * Intel 82555 10/100 PHY
    503  */
    504 #define	INTEL_PHY_VENDORID	0x0A28
    505 #define	INTEL_PHY_82555		0x015F
    506 
    507 /*
    508  * SEEQ 80220 10/100 PHY
    509  */
    510 #define	SEEQ_PHY_VENDORID	0x0016
    511 #define	SEEQ_PHY_80220		0xF83F
    512 
    513 
    514 /*
    515  * PCI low memory base and low I/O base register, and
    516  * other PCI registers.
    517  */
    518 
    519 #define	VR_PCI_VENDOR_ID	0x00
    520 #define	VR_PCI_DEVICE_ID	0x02
    521 #define	VR_PCI_COMMAND		0x04
    522 #define	VR_PCI_STATUS		0x06
    523 #define	VR_PCI_CLASSCODE	0x09
    524 #define	VR_PCI_LATENCY_TIMER	0x0D
    525 #define	VR_PCI_HEADER_TYPE	0x0E
    526 #define	VR_PCI_LOIO		0x10
    527 #define	VR_PCI_LOMEM		0x14
    528 #define	VR_PCI_BIOSROM		0x30
    529 #define	VR_PCI_INTLINE		0x3C
    530 #define	VR_PCI_INTPIN		0x3D
    531 #define	VR_PCI_MINGNT		0x3E
    532 #define	VR_PCI_MINLAT		0x0F
    533 #define	VR_PCI_RESETOPT		0x48
    534 #define	VR_PCI_EEPROM_DATA	0x4C
    535 
    536 /* power management registers */
    537 #define	VR_PCI_CAPID		0xDC /* 8 bits */
    538 #define	VR_PCI_NEXTPTR		0xDD /* 8 bits */
    539 #define	VR_PCI_PWRMGMTCAP	0xDE /* 16 bits */
    540 #define	VR_PCI_PWRMGMTCTRL	0xE0 /* 16 bits */
    541 
    542 #define	VR_PSTATE_MASK		0x0003
    543 #define	VR_PSTATE_D0		0x0000
    544 #define	VR_PSTATE_D1		0x0002
    545 #define	VR_PSTATE_D2		0x0002
    546 #define	VR_PSTATE_D3		0x0003
    547 #define	VR_PME_EN		0x0010
    548 #define	VR_PME_STATUS		0x8000
    549 
    550 #define	PHY_UNKNOWN		6
    551 
    552 #define	VR_PHYADDR_MIN		0x00
    553 #define	VR_PHYADDR_MAX		0x1F
    554 
    555 #define	PHY_BMCR		0x00
    556 #define	PHY_BMSR		0x01
    557 #define	PHY_VENID		0x02
    558 #define	PHY_DEVID		0x03
    559 #define	PHY_ANAR		0x04
    560 #define	PHY_LPAR		0x05
    561 #define	PHY_ANEXP		0x06
    562 
    563 #define	PHY_ANAR_NEXTPAGE	0x8000
    564 #define	PHY_ANAR_RSVD0		0x4000
    565 #define	PHY_ANAR_TLRFLT		0x2000
    566 #define	PHY_ANAR_RSVD1		0x1000
    567 #define	PHY_ANAR_RSVD2		0x0800
    568 #define	PHY_ANAR_RSVD3		0x0400
    569 #define	PHY_ANAR_100BT4		0x0200
    570 #define	PHY_ANAR_100BTXFULL	0x0100
    571 #define	PHY_ANAR_100BTXHALF	0x0080
    572 #define	PHY_ANAR_10BTFULL	0x0040
    573 #define	PHY_ANAR_10BTHALF	0x0020
    574 #define	PHY_ANAR_PROTO4		0x0010
    575 #define	PHY_ANAR_PROTO3		0x0008
    576 #define	PHY_ANAR_PROTO2		0x0004
    577 #define	PHY_ANAR_PROTO1		0x0002
    578 #define	PHY_ANAR_PROTO0		0x0001
    579 
    580 /*
    581  * These are the register definitions for the PHY (physical layer
    582  * interface chip).
    583  */
    584 /*
    585  * PHY BMCR Basic Mode Control Register
    586  */
    587 #define	PHY_BMCR_RESET			0x8000
    588 #define	PHY_BMCR_LOOPBK			0x4000
    589 #define	PHY_BMCR_SPEEDSEL		0x2000
    590 #define	PHY_BMCR_AUTONEGENBL		0x1000
    591 #define	PHY_BMCR_RSVD0			0x0800	/* write as zero */
    592 #define	PHY_BMCR_ISOLATE		0x0400
    593 #define	PHY_BMCR_AUTONEGRSTR		0x0200
    594 #define	PHY_BMCR_DUPLEX			0x0100
    595 #define	PHY_BMCR_COLLTEST		0x0080
    596 #define	PHY_BMCR_RSVD1			0x0040	/* write as zero, don't care */
    597 #define	PHY_BMCR_RSVD2			0x0020	/* write as zero, don't care */
    598 #define	PHY_BMCR_RSVD3			0x0010	/* write as zero, don't care */
    599 #define	PHY_BMCR_RSVD4			0x0008	/* write as zero, don't care */
    600 #define	PHY_BMCR_RSVD5			0x0004	/* write as zero, don't care */
    601 #define	PHY_BMCR_RSVD6			0x0002	/* write as zero, don't care */
    602 #define	PHY_BMCR_RSVD7			0x0001	/* write as zero, don't care */
    603 /*
    604  * RESET: 1 == software reset, 0 == normal operation
    605  * Resets status and control registers to default values.
    606  * Relatches all hardware config values.
    607  *
    608  * LOOPBK: 1 == loopback operation enabled, 0 == normal operation
    609  *
    610  * SPEEDSEL: 1 == 100Mb/s, 0 == 10Mb/s
    611  * Link speed is selected byt his bit or if auto-negotiation if bit
    612  * 12 (AUTONEGENBL) is set (in which case the value of this register
    613  * is ignored).
    614  *
    615  * AUTONEGENBL: 1 == Autonegotiation enabled, 0 == Autonegotiation disabled
    616  * Bits 8 and 13 are ignored when autoneg is set, otherwise bits 8 and 13
    617  * determine speed and mode. Should be cleared and then set if PHY configured
    618  * for no autoneg on startup.
    619  *
    620  * ISOLATE: 1 == isolate PHY from MII, 0 == normal operation
    621  *
    622  * AUTONEGRSTR: 1 == restart autonegotiation, 0 = normal operation
    623  *
    624  * DUPLEX: 1 == full duplex mode, 0 == half duplex mode
    625  *
    626  * COLLTEST: 1 == collision test enabled, 0 == normal operation
    627  */
    628 
    629 /*
    630  * PHY, BMSR Basic Mode Status Register
    631  */
    632 #define	PHY_BMSR_100BT4			0x8000
    633 #define	PHY_BMSR_100BTXFULL		0x4000
    634 #define	PHY_BMSR_100BTXHALF		0x2000
    635 #define	PHY_BMSR_10BTFULL		0x1000
    636 #define	PHY_BMSR_10BTHALF		0x0800
    637 #define	PHY_BMSR_RSVD1			0x0400	/* write as zero, don't care */
    638 #define	PHY_BMSR_RSVD2			0x0200	/* write as zero, don't care */
    639 #define	PHY_BMSR_RSVD3			0x0100	/* write as zero, don't care */
    640 #define	PHY_BMSR_RSVD4			0x0080	/* write as zero, don't care */
    641 #define	PHY_BMSR_MFPRESUP		0x0040
    642 #define	PHY_BMSR_AUTONEGCOMP		0x0020
    643 #define	PHY_BMSR_REMFAULT		0x0010
    644 #define	PHY_BMSR_CANAUTONEG		0x0008
    645 #define	PHY_BMSR_LINKSTAT		0x0004
    646 #define	PHY_BMSR_JABBER			0x0002
    647 #define	PHY_BMSR_EXTENDED		0x0001
    648