2 * Copyright (c) 1993 Herb Peyerl (hpeyerl@novatel.ca) All rights reserved.
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 without specific prior written permission
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.
24 Modified by: Andres Vega Garcia
26 INRIA - Sophia Antipolis, France
27 e-mail: avega@sophia.inria.fr
28 finger: avega@pax.inria.fr
33 * Created from if_epreg.h by Fred Gray (fgray@rice.edu) to support the
38 * Modified by Shusuke Nisiyama <shu@athena.qe.eng.hokudai.ac.jp>
44 * Ethernet software status per interface.
48 * Some global constants
51 #define TX_INIT_RATE 16
52 #define TX_INIT_MAX_RATE 64
53 #define RX_INIT_LATENCY 64
54 #define RX_INIT_EARLY_THRESH 64
55 #define MIN_RX_EARLY_THRESHF 16 /* not less than ether_header */
56 #define MIN_RX_EARLY_THRESHL 4
58 #define EEPROMSIZE 0x40
59 #define MAX_EEPROMBUSY 1000
60 #define VX_LAST_TAG 0xd7
61 #define VX_MAX_BOARDS 16
62 #define VX_ID_PORT 0x100
65 * some macros to acces long named fields
67 #define BASE (EL_BASE_ADDR)
70 * Commands to read/write EEPROM trough EEPROM command register (Window 0,
73 #define EEPROM_CMD_RD 0x0080 /* Read: Address required (5 bits) */
74 #define EEPROM_CMD_WR 0x0040 /* Write: Address required (5 bits) */
75 #define EEPROM_CMD_ERASE 0x00c0 /* Erase: Address required (5 bits) */
76 #define EEPROM_CMD_EWEN 0x0030 /* Erase/Write Enable: No data required */
78 #define EEPROM_BUSY (1<<15)
81 * Some short functions, worth to let them be a macro
84 /**************************************************************************
86 * These define the EEPROM data structure. They are used in the probe
87 * function to verify the existence of the adapter after having sent
90 * There are others but only the ones we use are defined here.
92 **************************************************************************/
94 #define EEPROM_NODE_ADDR_0 0x0 /* Word */
95 #define EEPROM_NODE_ADDR_1 0x1 /* Word */
96 #define EEPROM_NODE_ADDR_2 0x2 /* Word */
97 #define EEPROM_PROD_ID 0x3 /* 0x9[0-f]50 */
98 #define EEPROM_MFG_ID 0x7 /* 0x6d50 */
99 #define EEPROM_ADDR_CFG 0x8 /* Base addr */
100 #define EEPROM_RESOURCE_CFG 0x9 /* IRQ. Bits 12-15 */
101 #define EEPROM_OEM_ADDR_0 0xa /* Word */
102 #define EEPROM_OEM_ADDR_1 0xb /* Word */
103 #define EEPROM_OEM_ADDR_2 0xc /* Word */
104 #define EEPROM_SOFT_INFO_2 0xf /* Software information 2 */
106 #define NO_RX_OVN_ANOMALY (1<<5)
108 /**************************************************************************
110 * These are the registers for the 3Com 3c509 and their bit patterns when *
111 * applicable. They have been taken out the the "EtherLink III Parallel *
112 * Tasking EISA and ISA Technical Reference" "Beta Draft 10/30/92" manual *
115 **************************************************************************/
117 #define VX_COMMAND 0x0e /* Write. BASE+0x0e is always a
119 #define VX_STATUS 0x0e /* Read. BASE+0x0e is always status
121 #define VX_WINDOW 0x0f /* Read. BASE+0x0f is always window
124 * Window 0 registers. Setup.
127 #define VX_W0_EEPROM_DATA 0x0c
128 #define VX_W0_EEPROM_COMMAND 0x0a
129 #define VX_W0_RESOURCE_CFG 0x08
130 #define VX_W0_ADDRESS_CFG 0x06
131 #define VX_W0_CONFIG_CTRL 0x04
133 #define VX_W0_PRODUCT_ID 0x02
134 #define VX_W0_MFG_ID 0x00
138 * Window 1 registers. Operating Set.
141 #define VX_W1_TX_PIO_WR_2 0x02
142 #define VX_W1_TX_PIO_WR_1 0x00
144 #define VX_W1_FREE_TX 0x0c
145 #define VX_W1_TX_STATUS 0x0b /* byte */
146 #define VX_W1_TIMER 0x0a /* byte */
147 #define VX_W1_RX_STATUS 0x08
148 #define VX_W1_RX_PIO_RD_2 0x02
149 #define VX_W1_RX_PIO_RD_1 0x00
152 * Window 2 registers. Station Address Setup/Read
155 #define VX_W2_ADDR_5 0x05
156 #define VX_W2_ADDR_4 0x04
157 #define VX_W2_ADDR_3 0x03
158 #define VX_W2_ADDR_2 0x02
159 #define VX_W2_ADDR_1 0x01
160 #define VX_W2_ADDR_0 0x00
163 * Window 3 registers. FIFO Management.
166 #define VX_W3_INTERNAL_CFG 0x00
167 #define VX_W3_RESET_OPT 0x08
168 #define VX_W3_FREE_TX 0x0c
169 #define VX_W3_FREE_RX 0x0a
172 * Window 4 registers. Diagnostics.
175 #define VX_W4_MEDIA_TYPE 0x0a
176 #define VX_W4_CTRLR_STATUS 0x08
177 #define VX_W4_NET_DIAG 0x06
178 #define VX_W4_FIFO_DIAG 0x04
179 #define VX_W4_HOST_DIAG 0x02
180 #define VX_W4_TX_DIAG 0x00
183 * Window 5 Registers. Results and Internal status.
186 #define VX_W5_READ_0_MASK 0x0c
187 #define VX_W5_INTR_MASK 0x0a
188 #define VX_W5_RX_FILTER 0x08
189 #define VX_W5_RX_EARLY_THRESH 0x06
190 #define VX_W5_TX_AVAIL_THRESH 0x02
191 #define VX_W5_TX_START_THRESH 0x00
194 * Window 6 registers. Statistics.
197 #define TX_TOTAL_OK 0x0c
198 #define RX_TOTAL_OK 0x0a
199 #define TX_DEFERRALS 0x08
200 #define RX_FRAMES_OK 0x07
201 #define TX_FRAMES_OK 0x06
202 #define RX_OVERRUNS 0x05
203 #define TX_COLLISIONS 0x04
204 #define TX_AFTER_1_COLLISION 0x03
205 #define TX_AFTER_X_COLLISIONS 0x02
206 #define TX_NO_SQE 0x01
207 #define TX_CD_LOST 0x00
209 /****************************************
211 * Register definitions.
213 ****************************************/
216 * Command register. All windows.
219 * 15-11: 5-bit code for command to be executed.
220 * 10-0: 11-bit arg if any. For commands with no args;
221 * this can be set to anything.
223 #define GLOBAL_RESET (unsigned short) 0x0000 /* Wait at least 1ms
225 #define WINDOW_SELECT (unsigned short) (0x1<<11)
226 #define START_TRANSCEIVER (unsigned short) (0x2<<11) /* Read ADDR_CFG reg to
230 * before using trans-
232 #define RX_DISABLE (unsigned short) (0x3<<11) /* state disabled on
234 #define RX_ENABLE (unsigned short) (0x4<<11)
235 #define RX_RESET (unsigned short) (0x5<<11)
236 #define RX_DISCARD_TOP_PACK (unsigned short) (0x8<<11)
237 #define TX_ENABLE (unsigned short) (0x9<<11)
238 #define TX_DISABLE (unsigned short) (0xa<<11)
239 #define TX_RESET (unsigned short) (0xb<<11)
240 #define REQ_INTR (unsigned short) (0xc<<11)
242 * The following C_* acknowledge the various interrupts. Some of them don't
243 * do anything. See the manual.
245 #define ACK_INTR (unsigned short) (0x6800)
246 # define C_INTR_LATCH (unsigned short) (ACK_INTR|0x1)
247 # define C_CARD_FAILURE (unsigned short) (ACK_INTR|0x2)
248 # define C_TX_COMPLETE (unsigned short) (ACK_INTR|0x4)
249 # define C_TX_AVAIL (unsigned short) (ACK_INTR|0x8)
250 # define C_RX_COMPLETE (unsigned short) (ACK_INTR|0x10)
251 # define C_RX_EARLY (unsigned short) (ACK_INTR|0x20)
252 # define C_INT_RQD (unsigned short) (ACK_INTR|0x40)
253 # define C_UPD_STATS (unsigned short) (ACK_INTR|0x80)
254 #define SET_INTR_MASK (unsigned short) (0xe<<11)
255 #define SET_RD_0_MASK (unsigned short) (0xf<<11)
256 #define SET_RX_FILTER (unsigned short) (0x10<<11)
257 # define FIL_INDIVIDUAL (unsigned short) (0x1)
258 # define FIL_MULTICAST (unsigned short) (0x02)
259 # define FIL_BRDCST (unsigned short) (0x04)
260 # define FIL_PROMISC (unsigned short) (0x08)
261 #define SET_RX_EARLY_THRESH (unsigned short) (0x11<<11)
262 #define SET_TX_AVAIL_THRESH (unsigned short) (0x12<<11)
263 #define SET_TX_START_THRESH (unsigned short) (0x13<<11)
264 #define STATS_ENABLE (unsigned short) (0x15<<11)
265 #define STATS_DISABLE (unsigned short) (0x16<<11)
266 #define STOP_TRANSCEIVER (unsigned short) (0x17<<11)
269 * Status register. All windows.
271 * 15-13: Window number(0-7).
272 * 12: Command_in_progress.
277 * 7: Update Statistics.
278 * 6: Interrupt Requested.
283 * 1: Adapter Failure.
284 * 0: Interrupt Latch.
286 #define S_INTR_LATCH (unsigned short) (0x1)
287 #define S_CARD_FAILURE (unsigned short) (0x2)
288 #define S_TX_COMPLETE (unsigned short) (0x4)
289 #define S_TX_AVAIL (unsigned short) (0x8)
290 #define S_RX_COMPLETE (unsigned short) (0x10)
291 #define S_RX_EARLY (unsigned short) (0x20)
292 #define S_INT_RQD (unsigned short) (0x40)
293 #define S_UPD_STATS (unsigned short) (0x80)
294 #define S_COMMAND_IN_PROGRESS (unsigned short) (0x1000)
296 #define VX_BUSY_WAIT while (inw(BASE + VX_STATUS) & S_COMMAND_IN_PROGRESS)
298 /* Address Config. Register.
302 #define ACF_CONNECTOR_BITS 14
303 #define ACF_CONNECTOR_UTP 0
304 #define ACF_CONNECTOR_AUI 1
305 #define ACF_CONNECTOR_BNC 3
307 #define INTERNAL_CONNECTOR_BITS 20
308 #define INTERNAL_CONNECTOR_MASK 0x01700000
311 * FIFO Registers. RX Status.
313 * 15: Incomplete or FIFO empty.
314 * 14: 1: Error in RX Packet 0: Incomplete or no error.
315 * 13-11: Type of error.
317 * 1011 = Run Packet Error.
318 * 1100 = Alignment Error.
320 * 1001 = Oversize Packet Error (>1514 bytes)
321 * 0010 = Dribble Bits.
322 * (all other error codes, no errors.)
324 * 10-0: RX Bytes (0-1514)
326 #define ERR_INCOMPLETE (unsigned short) (0x8000)
327 #define ERR_RX (unsigned short) (0x4000)
328 #define ERR_MASK (unsigned short) (0x7800)
329 #define ERR_OVERRUN (unsigned short) (0x4000)
330 #define ERR_RUNT (unsigned short) (0x5800)
331 #define ERR_ALIGNMENT (unsigned short) (0x6000)
332 #define ERR_CRC (unsigned short) (0x6800)
333 #define ERR_OVERSIZE (unsigned short) (0x4800)
334 #define ERR_DRIBBLE (unsigned short) (0x1000)
339 * Reports the transmit status of a completed transmission. Writing this
340 * register pops the transmit completion stack.
342 * Window 1/Port 0x0b.
345 * 6: Interrupt on successful transmission requested.
346 * 5: Jabber Error (TP Only, TX Reset required. )
347 * 4: Underrun (TX Reset required. )
348 * 3: Maximum Collisions.
349 * 2: TX Status Overflow.
353 #define TXS_COMPLETE 0x80
354 #define TXS_INTR_REQ 0x40
355 #define TXS_JABBER 0x20
356 #define TXS_UNDERRUN 0x10
357 #define TXS_MAX_COLLISION 0x8
358 #define TXS_STATUS_OVERFLOW 0x4
360 #define RS_AUI (1<<5)
361 #define RS_BNC (1<<4)
362 #define RS_UTP (1<<3)
366 #define RS_MII (1<<6)
370 * FIFO Status (Window 4)
372 * Supports FIFO diagnostics
374 * Window 4/Port 0x04.1
376 * 15: 1=RX receiving (RO). Set when a packet is being received
379 * 13: 1=RX underrun (RO). Generates Adapter Failure interrupt.
380 * Requires RX Reset or Global Reset command to recover.
381 * It is generated when you read past the end of a packet -
382 * reading past what has been received so far will give bad
384 * 12: 1=RX status overrun (RO). Set when there are already 8
385 * packets in the RX FIFO. While this bit is set, no additional
386 * packets are received. Requires no action on the part of
387 * the host. The condition is cleared once a packet has been
388 * read out of the RX FIFO.
389 * 11: 1=RX overrun (RO). Set when the RX FIFO is full (there
390 * may not be an overrun packet yet). While this bit is set,
391 * no additional packets will be received (some additional
392 * bytes can still be pending between the wire and the RX
393 * FIFO). Requires no action on the part of the host. The
394 * condition is cleared once a few bytes have been read out
396 * 10: 1=TX overrun (RO). Generates adapter failure interrupt.
397 * Requires TX Reset or Global Reset command to recover.
398 * Disables Transmitter.
400 * 7-0: Built in self test bits for the RX and TX FIFO's.
402 #define FIFOS_RX_RECEIVING (unsigned short) 0x8000
403 #define FIFOS_RX_UNDERRUN (unsigned short) 0x2000
404 #define FIFOS_RX_STATUS_OVERRUN (unsigned short) 0x1000
405 #define FIFOS_RX_OVERRUN (unsigned short) 0x0800
406 #define FIFOS_TX_OVERRUN (unsigned short) 0x0400
409 * Misc defines for various things.
411 #define TAG_ADAPTER 0xd0
412 #define ACTIVATE_ADAPTER_TO_CONFIG 0xff
413 #define ENABLE_DRQ_IRQ 0x0001
414 #define MFG_ID 0x506d /* `TCM' */
415 #define PROD_ID 0x5090
416 #define GO_WINDOW(x) outw(WINDOW_SELECT|(x),BASE+VX_COMMAND)
417 #define JABBER_GUARD_ENABLE 0x40
418 #define LINKBEAT_ENABLE 0x80
419 #define ENABLE_UTP (JABBER_GUARD_ENABLE | LINKBEAT_ENABLE)
420 #define DISABLE_UTP 0x0
421 #define RX_BYTES_MASK (unsigned short) (0x07ff)
422 #define RX_ERROR 0x4000
423 #define RX_INCOMPLETE 0x8000
424 #define TX_INDICATE 1<<15
425 #define is_eeprom_busy(b) (inw((b)+VX_W0_EEPROM_COMMAND)&EEPROM_BUSY)
427 #define VX_IOSIZE 0x20
429 #define VX_CONNECTORS 8