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elink3reg.h revision 1.3
      1 /*	$NetBSD: elink3reg.h,v 1.3 1996/05/10 05:28:09 thorpej 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_ADDR_5		0x05
     91 #define EP_W2_ADDR_4		0x04
     92 #define EP_W2_ADDR_3		0x03
     93 #define EP_W2_ADDR_2		0x02
     94 #define EP_W2_ADDR_1		0x01
     95 #define EP_W2_ADDR_0		0x00
     96 
     97 /*
     98  * Window 3 registers.  FIFO Management.
     99  */
    100 	/* Read */
    101 #define EP_W3_FREE_TX		0x0c
    102 #define EP_W3_FREE_RX		0x0a
    103 
    104 /*
    105  * Window 4 registers. Diagnostics.
    106  */
    107 	/* Read/Write */
    108 #define EP_W4_MEDIA_TYPE	0x0a
    109 #define EP_W4_CTRLR_STATUS	0x08
    110 #define EP_W4_NET_DIAG		0x06
    111 #define EP_W4_FIFO_DIAG		0x04
    112 #define EP_W4_HOST_DIAG		0x02
    113 #define EP_W4_TX_DIAG		0x00
    114 
    115 /*
    116  * Window 5 Registers.  Results and Internal status.
    117  */
    118 	/* Read */
    119 #define EP_W5_READ_0_MASK	0x0c
    120 #define EP_W5_INTR_MASK		0x0a
    121 #define EP_W5_RX_FILTER		0x08
    122 #define EP_W5_RX_EARLY_THRESH	0x06
    123 #define EP_W5_TX_AVAIL_THRESH	0x02
    124 #define EP_W5_TX_START_THRESH	0x00
    125 
    126 /*
    127  * Window 6 registers. Statistics.
    128  */
    129 	/* Read/Write */
    130 #define TX_TOTAL_OK		0x0c
    131 #define RX_TOTAL_OK		0x0a
    132 #define TX_DEFERRALS		0x08
    133 #define RX_FRAMES_OK		0x07
    134 #define TX_FRAMES_OK		0x06
    135 #define RX_OVERRUNS		0x05
    136 #define TX_COLLISIONS		0x04
    137 #define TX_AFTER_1_COLLISION	0x03
    138 #define TX_AFTER_X_COLLISIONS	0x02
    139 #define TX_NO_SQE		0x01
    140 #define TX_CD_LOST		0x00
    141 
    142 /*
    143  * Register definitions.
    144  */
    145 
    146 /*
    147  * Command register. All windows.
    148  *
    149  * 16 bit register.
    150  *     15-11:  5-bit code for command to be executed.
    151  *     10-0:   11-bit arg if any. For commands with no args;
    152  *	      this can be set to anything.
    153  */
    154 #define GLOBAL_RESET		(u_short) 0x0000   /* Wait at least 1ms after issuing */
    155 #define WINDOW_SELECT		(u_short) (0x1<<11)
    156 #define START_TRANSCEIVER	(u_short) (0x2<<11) /* Read ADDR_CFG reg to determine
    157 						      whether this is needed. If so;
    158 						      wait 800 uSec before using trans-
    159 						      ceiver. */
    160 #define RX_DISABLE		(u_short) (0x3<<11) /* state disabled on power-up */
    161 #define RX_ENABLE		(u_short) (0x4<<11)
    162 #define RX_RESET		(u_short) (0x5<<11)
    163 #define RX_DISCARD_TOP_PACK	(u_short) (0x8<<11)
    164 #define TX_ENABLE		(u_short) (0x9<<11)
    165 #define TX_DISABLE		(u_short) (0xa<<11)
    166 #define TX_RESET		(u_short) (0xb<<11)
    167 #define REQ_INTR		(u_short) (0xc<<11)
    168 
    169 /*
    170  * The following C_* acknowledge the various interrupts.
    171  * Some of them don't do anything.  See the manual.
    172  */
    173 #define ACK_INTR		(u_short) (0x6800)
    174 #      define C_INTR_LATCH	(u_short) (ACK_INTR|0x01)
    175 #      define C_CARD_FAILURE	(u_short) (ACK_INTR|0x02)
    176 #      define C_TX_COMPLETE	(u_short) (ACK_INTR|0x04)
    177 #      define C_TX_AVAIL	(u_short) (ACK_INTR|0x08)
    178 #      define C_RX_COMPLETE	(u_short) (ACK_INTR|0x10)
    179 #      define C_RX_EARLY	(u_short) (ACK_INTR|0x20)
    180 #      define C_INT_RQD		(u_short) (ACK_INTR|0x40)
    181 #      define C_UPD_STATS	(u_short) (ACK_INTR|0x80)
    182 #define SET_INTR_MASK		(u_short) (0x0e<<11)
    183 #define SET_RD_0_MASK		(u_short) (0x0f<<11)
    184 #define SET_RX_FILTER		(u_short) (0x10<<11)
    185 #      define FIL_INDIVIDUAL	(u_short) (0x01)
    186 #      define FIL_MULTICAST	(u_short) (0x02)
    187 #      define FIL_BRDCST	(u_short) (0x04)
    188 #      define FIL_PROMISC	(u_short) (0x08)
    189 #define SET_RX_EARLY_THRESH	(u_short) (0x11<<11)
    190 #define SET_TX_AVAIL_THRESH	(u_short) (0x12<<11)
    191 #define SET_TX_START_THRESH	(u_short) (0x13<<11)
    192 #define STATS_ENABLE		(u_short) (0x15<<11)
    193 #define STATS_DISABLE		(u_short) (0x16<<11)
    194 #define STOP_TRANSCEIVER	(u_short) (0x17<<11)
    195 
    196 /*
    197  * Status register. All windows.
    198  *
    199  *     15-13:  Window number(0-7).
    200  *     12:     Command_in_progress.
    201  *     11:     reserved.
    202  *     10:     reserved.
    203  *     9:      reserved.
    204  *     8:      reserved.
    205  *     7:      Update Statistics.
    206  *     6:      Interrupt Requested.
    207  *     5:      RX Early.
    208  *     4:      RX Complete.
    209  *     3:      TX Available.
    210  *     2:      TX Complete.
    211  *     1:      Adapter Failure.
    212  *     0:      Interrupt Latch.
    213  */
    214 #define S_INTR_LATCH		(u_short) (0x0001)
    215 #define S_CARD_FAILURE		(u_short) (0x0002)
    216 #define S_TX_COMPLETE		(u_short) (0x0004)
    217 #define S_TX_AVAIL		(u_short) (0x0008)
    218 #define S_RX_COMPLETE		(u_short) (0x0010)
    219 #define S_RX_EARLY		(u_short) (0x0020)
    220 #define S_INT_RQD		(u_short) (0x0040)
    221 #define S_UPD_STATS		(u_short) (0x0080)
    222 #define S_COMMAND_IN_PROGRESS	(u_short) (0x1000)
    223 
    224 /*
    225  * FIFO Registers.  RX Status.
    226  *
    227  *     15:     Incomplete or FIFO empty.
    228  *     14:     1: Error in RX Packet   0: Incomplete or no error.
    229  *     14-11:  Type of error. [14-11]
    230  *	      1000 = Overrun.
    231  *	      1011 = Run Packet Error.
    232  *	      1100 = Alignment Error.
    233  *	      1101 = CRC Error.
    234  *	      1001 = Oversize Packet Error (>1514 bytes)
    235  *	      0010 = Dribble Bits.
    236  *	      (all other error codes, no errors.)
    237  *
    238  *     10-0:   RX Bytes (0-1514)
    239  */
    240 #define ERR_INCOMPLETE  (u_short) (0x8000)
    241 #define ERR_RX		(u_short) (0x4000)
    242 #define ERR_MASK	(u_short) (0x7800)
    243 #define ERR_OVERRUN	(u_short) (0x4000)
    244 #define ERR_RUNT	(u_short) (0x5800)
    245 #define ERR_ALIGNMENT	(u_short) (0x6000)
    246 #define ERR_CRC		(u_short) (0x6800)
    247 #define ERR_OVERSIZE	(u_short) (0x4800)
    248 #define ERR_DRIBBLE	(u_short) (0x1000)
    249 
    250 /*
    251  * TX Status
    252  *
    253  *   Reports the transmit status of a completed transmission. Writing this
    254  *   register pops the transmit completion stack.
    255  *
    256  *   Window 1/Port 0x0b.
    257  *
    258  *     7:      Complete
    259  *     6:      Interrupt on successful transmission requested.
    260  *     5:      Jabber Error (TP Only, TX Reset required. )
    261  *     4:      Underrun (TX Reset required. )
    262  *     3:      Maximum Collisions.
    263  *     2:      TX Status Overflow.
    264  *     1-0:    Undefined.
    265  *
    266  */
    267 #define TXS_COMPLETE		0x80
    268 #define TXS_INTR_REQ		0x40
    269 #define TXS_JABBER		0x20
    270 #define TXS_UNDERRUN		0x10
    271 #define TXS_MAX_COLLISION	0x08
    272 #define TXS_STATUS_OVERFLOW	0x04
    273 
    274 /*
    275  * FIFO Status (Window 4)
    276  *
    277  *   Supports FIFO diagnostics
    278  *
    279  *   Window 4/Port 0x04.1
    280  *
    281  *     15:	1=RX receiving (RO). Set when a packet is being received
    282  *		into the RX FIFO.
    283  *     14:	Reserved
    284  *     13:	1=RX underrun (RO). Generates Adapter Failure interrupt.
    285  *		Requires RX Reset or Global Reset command to recover.
    286  *		It is generated when you read past the end of a packet -
    287  *		reading past what has been received so far will give bad
    288  *		data.
    289  *     12:	1=RX status overrun (RO). Set when there are already 8
    290  *		packets in the RX FIFO. While this bit is set, no additional
    291  *		packets are received. Requires no action on the part of
    292  *		the host. The condition is cleared once a packet has been
    293  *		read out of the RX FIFO.
    294  *     11:	1=RX overrun (RO). Set when the RX FIFO is full (there
    295  *		may not be an overrun packet yet). While this bit is set,
    296  *		no additional packets will be received (some additional
    297  *		bytes can still be pending between the wire and the RX
    298  *		FIFO). Requires no action on the part of the host. The
    299  *		condition is cleared once a few bytes have been read out
    300  *		from the RX FIFO.
    301  *     10:	1=TX overrun (RO). Generates adapter failure interrupt.
    302  *		Requires TX Reset or Global Reset command to recover.
    303  *		Disables Transmitter.
    304  *     9-8:	Unassigned.
    305  *     7-0:	Built in self test bits for the RX and TX FIFO's.
    306  */
    307 #define	FIFOS_RX_RECEIVING	(u_short) 0x8000
    308 #define	FIFOS_RX_UNDERRUN	(u_short) 0x2000
    309 #define	FIFOS_RX_STATUS_OVERRUN	(u_short) 0x1000
    310 #define	FIFOS_RX_OVERRUN	(u_short) 0x0800
    311 #define	FIFOS_TX_OVERRUN	(u_short) 0x0400
    312 
    313 /*
    314  * Misc defines for various things.
    315  */
    316 #define TAG_ADAPTER 			0xd0
    317 #define ACTIVATE_ADAPTER_TO_CONFIG 	0xff
    318 #define ENABLE_DRQ_IRQ			0x0001
    319 #define MFG_ID				0x506d	/* `TCM' */
    320 #define PROD_ID				0x5090
    321 #define GO_WINDOW(x) 			bus_io_write_2(sc->sc_bc, \
    322 				sc->sc_ioh, EP_COMMAND, WINDOW_SELECT|x)
    323 #define AUI 				0x1
    324 #define BNC 				0x2
    325 #define UTP 				0x4
    326 #define IS_AUI 				(1<<13)
    327 #define IS_BNC 				(1<<12)
    328 #define IS_UTP 				(1<<9)
    329 #define EEPROM_BUSY			(1<<15)
    330 #define EEPROM_TST_MODE			(1<<14)
    331 #define READ_EEPROM			(1<<7)
    332 #define ENABLE_UTP			0xc0
    333 #define DISABLE_UTP			0x0
    334 #define RX_BYTES_MASK			(u_short) (0x07ff)
    335 
    336 #define IS_PCI_AUI 			(1<<5)
    337 #define IS_PCI_BNC 			(1<<4)
    338 #define IS_PCI_UTP 			(1<<3)
    339