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elink3reg.h revision 1.4
      1 /*	$NetBSD: elink3reg.h,v 1.4 1996/09/29 11:19:43 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 Herb Peyerl <hpeyerl (at) beer.org>
      5  * 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 Herb Peyerl.
     18  * 4. The name of Herb Peyerl may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  *
     32  */
     33 
     34 /*
     35  * These define the EEPROM data structure.  They are used in the probe
     36  * function to verify the existance of the adapter after having sent
     37  * the ID_Sequence.
     38  *
     39  * There are others but only the ones we use are defined here.
     40  */
     41 #define EEPROM_NODE_ADDR_0	0x0	/* Word */
     42 #define EEPROM_NODE_ADDR_1	0x1	/* Word */
     43 #define EEPROM_NODE_ADDR_2	0x2	/* Word */
     44 #define EEPROM_PROD_ID		0x3	/* 0x9[0-f]50 */
     45 #define EEPROM_MFG_ID		0x7	/* 0x6d50 */
     46 #define EEPROM_ADDR_CFG		0x8	/* Base addr */
     47 #define EEPROM_RESOURCE_CFG	0x9     /* IRQ. Bits 12-15 */
     48 
     49 /*
     50  * These are the registers for the 3Com 3c509 and their bit patterns when
     51  * applicable.  They have been taken out the the "EtherLink III Parallel
     52  * Tasking EISA and ISA Technical Reference" "Beta Draft 10/30/92" manual
     53  * from 3com.
     54  */
     55 #define EP_COMMAND		0x0e    /* Write. BASE+0x0e is always a command reg. */
     56 #define EP_STATUS		0x0e    /* Read. BASE+0x0e is always status reg. */
     57 #define EP_WINDOW		0x0f    /* Read. BASE+0x0f is always window reg. */
     58 
     59 /*
     60  * Window 0 registers. Setup.
     61  */
     62 	/* Write */
     63 #define EP_W0_EEPROM_DATA	0x0c
     64 #define EP_W0_EEPROM_COMMAND	0x0a
     65 #define EP_W0_RESOURCE_CFG	0x08
     66 #define EP_W0_ADDRESS_CFG	0x06
     67 #define EP_W0_CONFIG_CTRL	0x04
     68 	/* Read */
     69 #define EP_W0_PRODUCT_ID	0x02
     70 #define EP_W0_MFG_ID		0x00
     71 
     72 /*
     73  * Window 1 registers. Operating Set.
     74  */
     75 	/* Write */
     76 #define EP_W1_TX_PIO_WR_2	0x02
     77 #define EP_W1_TX_PIO_WR_1	0x00
     78 	/* Read */
     79 #define EP_W1_FREE_TX		0x0c
     80 #define EP_W1_TX_STATUS		0x0b    /* byte */
     81 #define EP_W1_TIMER		0x0a    /* byte */
     82 #define EP_W1_RX_STATUS		0x08
     83 #define EP_W1_RX_PIO_RD_2	0x02
     84 #define EP_W1_RX_PIO_RD_1	0x00
     85 
     86 /*
     87  * Window 2 registers. Station Address Setup/Read
     88  */
     89 	/* Read/Write */
     90 #define EP_W2_RECVMASK_0	0x06
     91 #define EP_W2_ADDR_5		0x05
     92 #define EP_W2_ADDR_4		0x04
     93 #define EP_W2_ADDR_3		0x03
     94 #define EP_W2_ADDR_2		0x02
     95 #define EP_W2_ADDR_1		0x01
     96 #define EP_W2_ADDR_0		0x00
     97 
     98 /*
     99  * Window 3 registers.  FIFO Management.
    100  */
    101 	/* Read */
    102 #define EP_W3_FREE_TX		0x0c
    103 #define EP_W3_FREE_RX		0x0a
    104 
    105 /*
    106  * Window 4 registers. Diagnostics.
    107  */
    108 	/* Read/Write */
    109 #define EP_W4_MEDIA_TYPE	0x0a
    110 #define EP_W4_CTRLR_STATUS	0x08
    111 #define EP_W4_NET_DIAG		0x06
    112 #define EP_W4_FIFO_DIAG		0x04
    113 #define EP_W4_HOST_DIAG		0x02
    114 #define EP_W4_TX_DIAG		0x00
    115 
    116 /*
    117  * Window 5 Registers.  Results and Internal status.
    118  */
    119 	/* Read */
    120 #define EP_W5_READ_0_MASK	0x0c
    121 #define EP_W5_INTR_MASK		0x0a
    122 #define EP_W5_RX_FILTER		0x08
    123 #define EP_W5_RX_EARLY_THRESH	0x06
    124 #define EP_W5_TX_AVAIL_THRESH	0x02
    125 #define EP_W5_TX_START_THRESH	0x00
    126 
    127 /*
    128  * Window 6 registers. Statistics.
    129  */
    130 	/* Read/Write */
    131 #define TX_TOTAL_OK		0x0c
    132 #define RX_TOTAL_OK		0x0a
    133 #define TX_DEFERRALS		0x08
    134 #define RX_FRAMES_OK		0x07
    135 #define TX_FRAMES_OK		0x06
    136 #define RX_OVERRUNS		0x05
    137 #define TX_COLLISIONS		0x04
    138 #define TX_AFTER_1_COLLISION	0x03
    139 #define TX_AFTER_X_COLLISIONS	0x02
    140 #define TX_NO_SQE		0x01
    141 #define TX_CD_LOST		0x00
    142 
    143 /*
    144  * Window 7 registers.
    145  * Address and length for a single bus-master DMA transfer.
    146  */
    147 #define EP_W7_MASTER_ADDDRES	0x00
    148 #define EP_W7_RX_ERROR		0x04
    149 #define EP_W7_MASTER_LEN	0x06
    150 #define EP_W7_RX_STATUS		0x08
    151 #define EP_W7_TIMER		0x0a
    152 #define EP_W7_TX_STATUS		0x0b
    153 #define EP_W7_MASTER_STATUS	0x0c
    154 
    155 /*
    156  * Register definitions.
    157  */
    158 
    159 /*
    160  * Command register. All windows.
    161  *
    162  * 16 bit register.
    163  *     15-11:  5-bit code for command to be executed.
    164  *     10-0:   11-bit arg if any. For commands with no args;
    165  *	      this can be set to anything.
    166  */
    167 #define GLOBAL_RESET		(u_short) 0x0000   /* Wait at least 1ms after issuing */
    168 #define WINDOW_SELECT		(u_short) (0x1<<11)
    169 #define START_TRANSCEIVER	(u_short) (0x2<<11) /* Read ADDR_CFG reg to determine
    170 						      whether this is needed. If so;
    171 						      wait 800 uSec before using trans-
    172 						      ceiver. */
    173 #define RX_DISABLE		(u_short) (0x3<<11) /* state disabled on power-up */
    174 #define RX_ENABLE		(u_short) (0x4<<11)
    175 #define RX_RESET		(u_short) (0x5<<11)
    176 #define RX_DISCARD_TOP_PACK	(u_short) (0x8<<11)
    177 #define TX_ENABLE		(u_short) (0x9<<11)
    178 #define TX_DISABLE		(u_short) (0xa<<11)
    179 #define TX_RESET		(u_short) (0xb<<11)
    180 #define REQ_INTR		(u_short) (0xc<<11)
    181 
    182 /*
    183  * The following C_* acknowledge the various interrupts.
    184  * Some of them don't do anything.  See the manual.
    185  */
    186 #define ACK_INTR		(u_short) (0x6800)
    187 #      define C_INTR_LATCH	(u_short) (ACK_INTR|0x01)
    188 #      define C_CARD_FAILURE	(u_short) (ACK_INTR|0x02)
    189 #      define C_TX_COMPLETE	(u_short) (ACK_INTR|0x04)
    190 #      define C_TX_AVAIL	(u_short) (ACK_INTR|0x08)
    191 #      define C_RX_COMPLETE	(u_short) (ACK_INTR|0x10)
    192 #      define C_RX_EARLY	(u_short) (ACK_INTR|0x20)
    193 #      define C_INT_RQD		(u_short) (ACK_INTR|0x40)
    194 #      define C_UPD_STATS	(u_short) (ACK_INTR|0x80)
    195 #define SET_INTR_MASK		(u_short) (0x0e<<11)
    196 #define SET_RD_0_MASK		(u_short) (0x0f<<11)
    197 #define SET_RX_FILTER		(u_short) (0x10<<11)
    198 #      define FIL_INDIVIDUAL	(u_short) (0x01)
    199 #      define FIL_MULTICAST	(u_short) (0x02)
    200 #      define FIL_BRDCST	(u_short) (0x04)
    201 #      define FIL_PROMISC	(u_short) (0x08)
    202 #define SET_RX_EARLY_THRESH	(u_short) (0x11<<11)
    203 #define SET_TX_AVAIL_THRESH	(u_short) (0x12<<11)
    204 #define SET_TX_START_THRESH	(u_short) (0x13<<11)
    205 #define STATS_ENABLE		(u_short) (0x15<<11)
    206 #define STATS_DISABLE		(u_short) (0x16<<11)
    207 #define STOP_TRANSCEIVER	(u_short) (0x17<<11)
    208 
    209 /*
    210  * Status register. All windows.
    211  *
    212  *     15-13:  Window number(0-7).
    213  *     12:     Command_in_progress.
    214  *     11:     reserved.
    215  *     10:     reserved.
    216  *     9:      reserved.
    217  *     8:      reserved.
    218  *     7:      Update Statistics.
    219  *     6:      Interrupt Requested.
    220  *     5:      RX Early.
    221  *     4:      RX Complete.
    222  *     3:      TX Available.
    223  *     2:      TX Complete.
    224  *     1:      Adapter Failure.
    225  *     0:      Interrupt Latch.
    226  */
    227 #define S_INTR_LATCH		(u_short) (0x0001)
    228 #define S_CARD_FAILURE		(u_short) (0x0002)
    229 #define S_TX_COMPLETE		(u_short) (0x0004)
    230 #define S_TX_AVAIL		(u_short) (0x0008)
    231 #define S_RX_COMPLETE		(u_short) (0x0010)
    232 #define S_RX_EARLY		(u_short) (0x0020)
    233 #define S_INT_RQD		(u_short) (0x0040)
    234 #define S_UPD_STATS		(u_short) (0x0080)
    235 #define S_COMMAND_IN_PROGRESS	(u_short) (0x1000)
    236 
    237 /*
    238  * FIFO Registers.  RX Status.
    239  *
    240  *     15:     Incomplete or FIFO empty.
    241  *     14:     1: Error in RX Packet   0: Incomplete or no error.
    242  *     14-11:  Type of error. [14-11]
    243  *	      1000 = Overrun.
    244  *	      1011 = Run Packet Error.
    245  *	      1100 = Alignment Error.
    246  *	      1101 = CRC Error.
    247  *	      1001 = Oversize Packet Error (>1514 bytes)
    248  *	      0010 = Dribble Bits.
    249  *	      (all other error codes, no errors.)
    250  *
    251  *     10-0:   RX Bytes (0-1514)
    252  */
    253 #define ERR_INCOMPLETE  (u_short) (0x8000)
    254 #define ERR_RX		(u_short) (0x4000)
    255 #define ERR_MASK	(u_short) (0x7800)
    256 #define ERR_OVERRUN	(u_short) (0x4000)
    257 #define ERR_RUNT	(u_short) (0x5800)
    258 #define ERR_ALIGNMENT	(u_short) (0x6000)
    259 #define ERR_CRC		(u_short) (0x6800)
    260 #define ERR_OVERSIZE	(u_short) (0x4800)
    261 #define ERR_DRIBBLE	(u_short) (0x1000)
    262 
    263 /*
    264  * TX Status
    265  *
    266  *   Reports the transmit status of a completed transmission. Writing this
    267  *   register pops the transmit completion stack.
    268  *
    269  *   Window 1/Port 0x0b.
    270  *
    271  *     7:      Complete
    272  *     6:      Interrupt on successful transmission requested.
    273  *     5:      Jabber Error (TP Only, TX Reset required. )
    274  *     4:      Underrun (TX Reset required. )
    275  *     3:      Maximum Collisions.
    276  *     2:      TX Status Overflow.
    277  *     1-0:    Undefined.
    278  *
    279  */
    280 #define TXS_COMPLETE		0x80
    281 #define TXS_INTR_REQ		0x40
    282 #define TXS_JABBER		0x20
    283 #define TXS_UNDERRUN		0x10
    284 #define TXS_MAX_COLLISION	0x08
    285 #define TXS_STATUS_OVERFLOW	0x04
    286 
    287 /*
    288  * FIFO Status (Window 4)
    289  *
    290  *   Supports FIFO diagnostics
    291  *
    292  *   Window 4/Port 0x04.1
    293  *
    294  *     15:	1=RX receiving (RO). Set when a packet is being received
    295  *		into the RX FIFO.
    296  *     14:	Reserved
    297  *     13:	1=RX underrun (RO). Generates Adapter Failure interrupt.
    298  *		Requires RX Reset or Global Reset command to recover.
    299  *		It is generated when you read past the end of a packet -
    300  *		reading past what has been received so far will give bad
    301  *		data.
    302  *     12:	1=RX status overrun (RO). Set when there are already 8
    303  *		packets in the RX FIFO. While this bit is set, no additional
    304  *		packets are received. Requires no action on the part of
    305  *		the host. The condition is cleared once a packet has been
    306  *		read out of the RX FIFO.
    307  *     11:	1=RX overrun (RO). Set when the RX FIFO is full (there
    308  *		may not be an overrun packet yet). While this bit is set,
    309  *		no additional packets will be received (some additional
    310  *		bytes can still be pending between the wire and the RX
    311  *		FIFO). Requires no action on the part of the host. The
    312  *		condition is cleared once a few bytes have been read out
    313  *		from the RX FIFO.
    314  *     10:	1=TX overrun (RO). Generates adapter failure interrupt.
    315  *		Requires TX Reset or Global Reset command to recover.
    316  *		Disables Transmitter.
    317  *     9-8:	Unassigned.
    318  *     7-0:	Built in self test bits for the RX and TX FIFO's.
    319  */
    320 #define	FIFOS_RX_RECEIVING	(u_short) 0x8000
    321 #define	FIFOS_RX_UNDERRUN	(u_short) 0x2000
    322 #define	FIFOS_RX_STATUS_OVERRUN	(u_short) 0x1000
    323 #define	FIFOS_RX_OVERRUN	(u_short) 0x0800
    324 #define	FIFOS_TX_OVERRUN	(u_short) 0x0400
    325 
    326 /*
    327  * Misc defines for various things.
    328  */
    329 #define TAG_ADAPTER 			0xd0
    330 #define ACTIVATE_ADAPTER_TO_CONFIG 	0xff
    331 #define ENABLE_DRQ_IRQ			0x0001
    332 #define MFG_ID				0x506d	/* `TCM' */
    333 #define PROD_ID				0x5090
    334 #define GO_WINDOW(x) 			bus_io_write_2(sc->sc_bc, \
    335 				sc->sc_ioh, EP_COMMAND, WINDOW_SELECT|x)
    336 #define AUI 				0x1
    337 #define BNC 				0x2
    338 #define UTP 				0x4
    339 #define IS_AUI 				(1<<13)
    340 #define IS_BNC 				(1<<12)
    341 #define IS_UTP 				(1<<9)
    342 #define EEPROM_BUSY			(1<<15)
    343 #define EEPROM_TST_MODE			(1<<14)
    344 #define READ_EEPROM			(1<<7)
    345 #define ENABLE_UTP			0xc0
    346 #define DISABLE_UTP			0x0
    347 #define RX_BYTES_MASK			(u_short) (0x07ff)
    348 
    349 #define IS_PCI_AUI 			(1<<5)
    350 #define IS_PCI_BNC 			(1<<4)
    351 #define IS_PCI_UTP 			(1<<3)
    352