1 /* 2 * Copyright (c) 1993 Herb Peyerl (hpeyerl (at) novatel.ca) All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 1. Redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer. 2. The name 8 * of the author may not be used to endorse or promote products derived from 9 * this software withough specific prior written permission 10 * 11 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 12 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 14 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 15 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 16 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 17 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 18 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 19 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 20 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 21 * 22 * if_epreg.h,v 1.4 1994/11/13 10:12:37 gibbs Exp Modified by: 23 * 24 October 2, 1994 25 26 Modified by: Andres Vega Garcia 27 28 INRIA - Sophia Antipolis, France 29 e-mail: avega (at) sophia.inria.fr 30 finger: avega (at) pax.inria.fr 31 32 */ 33 34 FILE_LICENCE ( BSD3 ); 35 36 #include "nic.h" 37 38 /* 39 * Ethernet software status per interface. 40 */ 41 /* 42 * Some global constants 43 */ 44 45 #define TX_INIT_RATE 16 46 #define TX_INIT_MAX_RATE 64 47 #define RX_INIT_LATENCY 64 48 #define RX_INIT_EARLY_THRESH 64 49 #define MIN_RX_EARLY_THRESHF 16 /* not less than ether_header */ 50 #define MIN_RX_EARLY_THRESHL 4 51 52 #define EEPROMSIZE 0x40 53 #define MAX_EEPROMBUSY 1000 54 #define EP_ID_PORT_START 0x110 /* avoid 0x100 to avoid conflict with SB16 */ 55 #define EP_ID_PORT_INC 0x10 56 #define EP_ID_PORT_END 0x200 57 #define EP_TAG_MAX 0x7 /* must be 2^n - 1 */ 58 59 /* 60 * Commands to read/write EEPROM trough EEPROM command register (Window 0, 61 * Offset 0xa) 62 */ 63 #define EEPROM_CMD_RD 0x0080 /* Read: Address required (5 bits) */ 64 #define EEPROM_CMD_WR 0x0040 /* Write: Address required (5 bits) */ 65 #define EEPROM_CMD_ERASE 0x00c0 /* Erase: Address required (5 bits) */ 66 #define EEPROM_CMD_EWEN 0x0030 /* Erase/Write Enable: No data required */ 67 68 #define EEPROM_BUSY (1<<15) 69 #define EEPROM_TST_MODE (1<<14) 70 71 /* 72 * Some short functions, worth to let them be a macro 73 */ 74 #define is_eeprom_busy(b) (inw((b)+EP_W0_EEPROM_COMMAND)&EEPROM_BUSY) 75 #define GO_WINDOW(b,x) outw(WINDOW_SELECT|(x), (b)+EP_COMMAND) 76 77 /************************************************************************** 78 * 79 * These define the EEPROM data structure. They are used in the probe 80 * function to verify the existance of the adapter after having sent 81 * the ID_Sequence. 82 * 83 * There are others but only the ones we use are defined here. 84 * 85 **************************************************************************/ 86 87 #define EEPROM_NODE_ADDR_0 0x0 /* Word */ 88 #define EEPROM_NODE_ADDR_1 0x1 /* Word */ 89 #define EEPROM_NODE_ADDR_2 0x2 /* Word */ 90 #define EEPROM_PROD_ID 0x3 /* 0x9[0-f]50 */ 91 #define EEPROM_MFG_ID 0x7 /* 0x6d50 */ 92 #define EEPROM_ADDR_CFG 0x8 /* Base addr */ 93 #define EEPROM_RESOURCE_CFG 0x9 /* IRQ. Bits 12-15 */ 94 95 /************************************************************************** 96 * 97 * These are the registers for the 3Com 3c509 and their bit patterns when 98 * applicable. They have been taken out the the "EtherLink III Parallel 99 * Tasking EISA and ISA Technical Reference" "Beta Draft 10/30/92" manual 100 * from 3com. 101 * 102 * Getting this document out of 3Com is almost impossible. However, 103 * archived copies are available at 104 * http://www.osdever.net/cottontail/downloads/docs/3c5x9b.zip and 105 * several other places on the web (search for 3c5x9b.pdf). 106 * 107 **************************************************************************/ 108 109 #define EP_COMMAND 0x0e /* Write. BASE+0x0e is always a 110 * command reg. */ 111 #define EP_STATUS 0x0e /* Read. BASE+0x0e is always status 112 * reg. */ 113 #define EP_WINDOW 0x0f /* Read. BASE+0x0f is always window 114 * reg. */ 115 /* 116 * Window 0 registers. Setup. 117 */ 118 /* Write */ 119 #define EP_W0_EEPROM_DATA 0x0c 120 #define EP_W0_EEPROM_COMMAND 0x0a 121 #define EP_W0_RESOURCE_CFG 0x08 122 #define EP_W0_ADDRESS_CFG 0x06 123 #define EP_W0_CONFIG_CTRL 0x04 124 /* Read */ 125 #define EP_W0_PRODUCT_ID 0x02 126 #define EP_W0_MFG_ID 0x00 127 128 /* 129 * Window 1 registers. Operating Set. 130 */ 131 /* Write */ 132 #define EP_W1_TX_PIO_WR_2 0x02 133 #define EP_W1_TX_PIO_WR_1 0x00 134 /* Read */ 135 #define EP_W1_FREE_TX 0x0c 136 #define EP_W1_TX_STATUS 0x0b /* byte */ 137 #define EP_W1_TIMER 0x0a /* byte */ 138 #define EP_W1_RX_STATUS 0x08 139 #define EP_W1_RX_PIO_RD_2 0x02 140 #define EP_W1_RX_PIO_RD_1 0x00 141 142 /* 143 * Window 2 registers. Station Address Setup/Read 144 */ 145 /* Read/Write */ 146 #define EP_W2_ADDR_5 0x05 147 #define EP_W2_ADDR_4 0x04 148 #define EP_W2_ADDR_3 0x03 149 #define EP_W2_ADDR_2 0x02 150 #define EP_W2_ADDR_1 0x01 151 #define EP_W2_ADDR_0 0x00 152 153 /* 154 * Window 3 registers. FIFO Management. 155 */ 156 /* Read */ 157 #define EP_W3_FREE_TX 0x0c 158 #define EP_W3_FREE_RX 0x0a 159 160 /* 161 * Window 4 registers. Diagnostics. 162 */ 163 /* Read/Write */ 164 #define EP_W4_MEDIA_TYPE 0x0a 165 #define EP_W4_CTRLR_STATUS 0x08 166 #define EP_W4_NET_DIAG 0x06 167 #define EP_W4_FIFO_DIAG 0x04 168 #define EP_W4_HOST_DIAG 0x02 169 #define EP_W4_TX_DIAG 0x00 170 171 /* 172 * Window 5 Registers. Results and Internal status. 173 */ 174 /* Read */ 175 #define EP_W5_READ_0_MASK 0x0c 176 #define EP_W5_INTR_MASK 0x0a 177 #define EP_W5_RX_FILTER 0x08 178 #define EP_W5_RX_EARLY_THRESH 0x06 179 #define EP_W5_TX_AVAIL_THRESH 0x02 180 #define EP_W5_TX_START_THRESH 0x00 181 182 /* 183 * Window 6 registers. Statistics. 184 */ 185 /* Read/Write */ 186 #define TX_TOTAL_OK 0x0c 187 #define RX_TOTAL_OK 0x0a 188 #define TX_DEFERRALS 0x08 189 #define RX_FRAMES_OK 0x07 190 #define TX_FRAMES_OK 0x06 191 #define RX_OVERRUNS 0x05 192 #define TX_COLLISIONS 0x04 193 #define TX_AFTER_1_COLLISION 0x03 194 #define TX_AFTER_X_COLLISIONS 0x02 195 #define TX_NO_SQE 0x01 196 #define TX_CD_LOST 0x00 197 198 /**************************************** 199 * 200 * Register definitions. 201 * 202 ****************************************/ 203 204 /* 205 * Command register. All windows. 206 * 207 * 16 bit register. 208 * 15-11: 5-bit code for command to be executed. 209 * 10-0: 11-bit arg if any. For commands with no args; 210 * this can be set to anything. 211 */ 212 #define GLOBAL_RESET (unsigned short) 0x0000 /* Wait at least 1ms 213 * after issuing */ 214 #define WINDOW_SELECT (unsigned short) (0x1<<11) 215 #define START_TRANSCEIVER (unsigned short) (0x2<<11) /* Read ADDR_CFG reg to 216 * determine whether 217 * this is needed. If 218 * so; wait 800 uSec 219 * before using trans- 220 * ceiver. */ 221 #define RX_DISABLE (unsigned short) (0x3<<11) /* state disabled on 222 * power-up */ 223 #define RX_ENABLE (unsigned short) (0x4<<11) 224 #define RX_RESET (unsigned short) (0x5<<11) 225 #define RX_DISCARD_TOP_PACK (unsigned short) (0x8<<11) 226 #define TX_ENABLE (unsigned short) (0x9<<11) 227 #define TX_DISABLE (unsigned short) (0xa<<11) 228 #define TX_RESET (unsigned short) (0xb<<11) 229 #define REQ_INTR (unsigned short) (0xc<<11) 230 #define SET_INTR_MASK (unsigned short) (0xe<<11) 231 #define SET_RD_0_MASK (unsigned short) (0xf<<11) 232 #define SET_RX_FILTER (unsigned short) (0x10<<11) 233 #define FIL_INDIVIDUAL (unsigned short) (0x1) 234 #define FIL_GROUP (unsigned short) (0x2) 235 #define FIL_BRDCST (unsigned short) (0x4) 236 #define FIL_ALL (unsigned short) (0x8) 237 #define SET_RX_EARLY_THRESH (unsigned short) (0x11<<11) 238 #define SET_TX_AVAIL_THRESH (unsigned short) (0x12<<11) 239 #define SET_TX_START_THRESH (unsigned short) (0x13<<11) 240 #define STATS_ENABLE (unsigned short) (0x15<<11) 241 #define STATS_DISABLE (unsigned short) (0x16<<11) 242 #define STOP_TRANSCEIVER (unsigned short) (0x17<<11) 243 /* 244 * The following C_* acknowledge the various interrupts. Some of them don't 245 * do anything. See the manual. 246 */ 247 #define ACK_INTR (unsigned short) (0x6800) 248 #define C_INTR_LATCH (unsigned short) (ACK_INTR|0x1) 249 #define C_CARD_FAILURE (unsigned short) (ACK_INTR|0x2) 250 #define C_TX_COMPLETE (unsigned short) (ACK_INTR|0x4) 251 #define C_TX_AVAIL (unsigned short) (ACK_INTR|0x8) 252 #define C_RX_COMPLETE (unsigned short) (ACK_INTR|0x10) 253 #define C_RX_EARLY (unsigned short) (ACK_INTR|0x20) 254 #define C_INT_RQD (unsigned short) (ACK_INTR|0x40) 255 #define C_UPD_STATS (unsigned short) (ACK_INTR|0x80) 256 257 /* 258 * Status register. All windows. 259 * 260 * 15-13: Window number(0-7). 261 * 12: Command_in_progress. 262 * 11: reserved. 263 * 10: reserved. 264 * 9: reserved. 265 * 8: reserved. 266 * 7: Update Statistics. 267 * 6: Interrupt Requested. 268 * 5: RX Early. 269 * 4: RX Complete. 270 * 3: TX Available. 271 * 2: TX Complete. 272 * 1: Adapter Failure. 273 * 0: Interrupt Latch. 274 */ 275 #define S_INTR_LATCH (unsigned short) (0x1) 276 #define S_CARD_FAILURE (unsigned short) (0x2) 277 #define S_TX_COMPLETE (unsigned short) (0x4) 278 #define S_TX_AVAIL (unsigned short) (0x8) 279 #define S_RX_COMPLETE (unsigned short) (0x10) 280 #define S_RX_EARLY (unsigned short) (0x20) 281 #define S_INT_RQD (unsigned short) (0x40) 282 #define S_UPD_STATS (unsigned short) (0x80) 283 #define S_5_INTS (S_CARD_FAILURE|S_TX_COMPLETE|\ 284 S_TX_AVAIL|S_RX_COMPLETE|S_RX_EARLY) 285 #define S_COMMAND_IN_PROGRESS (unsigned short) (0x1000) 286 287 /* 288 * FIFO Registers. 289 * RX Status. Window 1/Port 08 290 * 291 * 15: Incomplete or FIFO empty. 292 * 14: 1: Error in RX Packet 0: Incomplete or no error. 293 * 13-11: Type of error. 294 * 1000 = Overrun. 295 * 1011 = Run Packet Error. 296 * 1100 = Alignment Error. 297 * 1101 = CRC Error. 298 * 1001 = Oversize Packet Error (>1514 bytes) 299 * 0010 = Dribble Bits. 300 * (all other error codes, no errors.) 301 * 302 * 10-0: RX Bytes (0-1514) 303 */ 304 #define ERR_RX_INCOMPLETE (unsigned short) (0x1<<15) 305 #define ERR_RX (unsigned short) (0x1<<14) 306 #define ERR_RX_OVERRUN (unsigned short) (0x8<<11) 307 #define ERR_RX_RUN_PKT (unsigned short) (0xb<<11) 308 #define ERR_RX_ALIGN (unsigned short) (0xc<<11) 309 #define ERR_RX_CRC (unsigned short) (0xd<<11) 310 #define ERR_RX_OVERSIZE (unsigned short) (0x9<<11) 311 #define ERR_RX_DRIBBLE (unsigned short) (0x2<<11) 312 313 /* 314 * FIFO Registers. 315 * TX Status. Window 1/Port 0B 316 * 317 * Reports the transmit status of a completed transmission. Writing this 318 * register pops the transmit completion stack. 319 * 320 * Window 1/Port 0x0b. 321 * 322 * 7: Complete 323 * 6: Interrupt on successful transmission requested. 324 * 5: Jabber Error (TP Only, TX Reset required. ) 325 * 4: Underrun (TX Reset required. ) 326 * 3: Maximum Collisions. 327 * 2: TX Status Overflow. 328 * 1-0: Undefined. 329 * 330 */ 331 #define TXS_COMPLETE 0x80 332 #define TXS_SUCCES_INTR_REQ 0x40 333 #define TXS_JABBER 0x20 334 #define TXS_UNDERRUN 0x10 335 #define TXS_MAX_COLLISION 0x8 336 #define TXS_STATUS_OVERFLOW 0x4 337 338 /* 339 * Configuration control register. 340 * Window 0/Port 04 341 */ 342 /* Read */ 343 #define IS_AUI (1<<13) 344 #define IS_BNC (1<<12) 345 #define IS_UTP (1<<9) 346 /* Write */ 347 #define ENABLE_DRQ_IRQ 0x0001 348 #define W0_P4_CMD_RESET_ADAPTER 0x4 349 #define W0_P4_CMD_ENABLE_ADAPTER 0x1 350 /* 351 * Media type and status. 352 * Window 4/Port 0A 353 */ 354 #define ENABLE_UTP 0xc0 355 #define DISABLE_UTP 0x0 356 357 /* 358 * Resource control register 359 */ 360 361 #define SET_IRQ(i) ( ((i)<<12) | 0xF00) /* set IRQ i */ 362 363 /* 364 * Receive status register 365 */ 366 367 #define RX_BYTES_MASK (unsigned short) (0x07ff) 368 #define RX_ERROR 0x4000 369 #define RX_INCOMPLETE 0x8000 370 371 /* 372 * Misc defines for various things. 373 */ 374 #define MFG_ID 0x6d50 /* in EEPROM and W0 ADDR_CONFIG */ 375 #define PROD_ID 0x9150 376 377 #define AUI 0x1 378 #define BNC 0x2 379 #define UTP 0x4 380 381 #define RX_BYTES_MASK (unsigned short) (0x07ff) 382 383 /* 384 * Function shared between 3c509.c and 3c529.c 385 */ 386 extern int t5x9_probe ( struct nic *nic, 387 uint16_t prod_id_check, uint16_t prod_id_mask ); 388 extern void t5x9_disable ( struct nic *nic ); 389 390 /* 391 * Local variables: 392 * c-basic-offset: 8 393 * End: 394 */ 395
