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.
26 * DELAY_MULTIPLE: How much to boost "base" delays, except
27 * for the inter-bit delays in get_eeprom_data. A cyrix Media GX needed this.
29 #define DELAY_MULTIPLE 10
30 #define BIT_DELAY_MULTIPLE 10
33 * Some global constants
35 #define TX_INIT_RATE 16
36 #define TX_INIT_MAX_RATE 64
37 #define RX_INIT_LATENCY 64
38 #define RX_INIT_EARLY_THRESH 208 /* not less than MINCLSIZE */
39 #define RX_NEXT_EARLY_THRESH 500
41 #define EEPROMSIZE 0x40
42 #define MAX_EEPROMBUSY 1000
43 #define EP_LAST_TAG 0xd7
44 #define EP_MAX_BOARDS 16
46 * This `ID' port is a mere hack. There's currently no chance to register
47 * it with config's idea of the ports that are in use.
49 * "After the automatic configuration is completed, the IDS is in its initial
50 * state (ID-WAIT), and it monitors all write access to I/O port 01x0h, where
51 * 'x' is any hex digit. If a zero is written to any one of these ports, then
52 * that address is remembered and becomes the ID port. A second zero written
53 * to that port resets the ID sequence to its initial state. The IDS watches
54 * for the ID sequence to be written to the ID port."
56 * We prefer 0x110 over 0x100 so to not conflict with the Plaque&Pray
59 #define EP_ID_PORT 0x110
60 #define EP_IOSIZE 16 /* 16 bytes of I/O space used. */
63 * some macros to acces long named fields
65 #define BASE (sc->ep_io_addr)
68 * Commands to read/write EEPROM trough EEPROM command register (Window 0,
71 #define EEPROM_CMD_RD 0x0080 /* Read: Address required (5 bits) */
72 #define EEPROM_CMD_WR 0x0040 /* Write: Address required (5 bits) */
73 #define EEPROM_CMD_ERASE 0x00c0 /* Erase: Address required (5 bits) */
74 #define EEPROM_CMD_EWEN 0x0030 /* Erase/Write Enable: No data required */
76 #define EEPROM_BUSY (1<<15)
77 #define EEPROM_TST_MODE (1<<14)
80 * Some short functions, worth to let them be a macro
82 #define is_eeprom_busy(b) (inw((b)+EP_W0_EEPROM_COMMAND)&EEPROM_BUSY)
83 #define GO_WINDOW(x) outw(BASE+EP_COMMAND, WINDOW_SELECT|(x))
85 /**************************************************************************
87 * These define the EEPROM data structure. They are used in the probe
88 * function to verify the existence of the adapter after having sent
91 **************************************************************************/
93 #define EEPROM_NODE_ADDR_0 0x0 /* Word */
94 #define EEPROM_NODE_ADDR_1 0x1 /* Word */
95 #define EEPROM_NODE_ADDR_2 0x2 /* Word */
96 #define EEPROM_PROD_ID 0x3 /* 0x9[0-f]50 */
97 #define EEPROM_MFG_DATE 0x4 /* Manufacturing date */
98 #define EEPROM_MFG_DIVSION 0x5 /* Manufacturing division */
99 #define EEPROM_MFG_PRODUCT 0x6 /* Product code */
100 #define EEPROM_MFG_ID 0x7 /* 0x6d50 */
101 #define EEPROM_ADDR_CFG 0x8 /* Base addr */
102 # define ADDR_CFG_EISA 0x1f
103 # define ADDR_CFG_MASK 0x1f
104 #define EEPROM_RESOURCE_CFG 0x9 /* IRQ. Bits 12-15 */
105 #define EEPROM_OEM_ADDR0 0xa
106 #define EEPROM_OEM_ADDR1 0xb
107 #define EEPROM_OEM_ADDR2 0xc
108 #define EEPROM_SOFTINFO 0xd
109 #define EEPROM_COMPAT 0xe
110 #define EEPROM_SOFTINFO2 0xf
111 #define EEPROM_CAP 0x10
112 # define CAP_ISA 0x2083
113 # define CAP_PCMCIA 0x2082
114 #define EEPROM_INT_CONFIG_0 0x12
115 #define EEPROM_INT_CONFIG_1 0x13
116 /* RAM Partition TX FIFO/RX FIFO */
117 # define ICW1_RAM_PART_MASK 0x03
118 # define ICW1_RAM_PART_35 0x00 /* 2:5 (only legal if RAM size == 000b default power-up/reset */
119 # define ICW1_RAM_PART_13 0x01 /* 1:3 (only legal if RAM size == 000b) */
120 # define ICW1_RAM_PART_11 0x10 /* 1:1 */
121 # define ICW1_RAM_PART_RESV 0x11 /* Reserved */
122 /* ISA Adapter Selection */
123 # define ICW1_IAS_MASK 0x0c
124 # define ICW1_IAS_DIS 0x00 /* Both mechanisms disabled (default) */
125 # define ICW1_IAS_ISA 0x04 /* ISA contention only */
126 # define ICW1_IAS_PNP 0x08 /* ISA Plug and Play only */
127 # define ICW1_IAS_BOTH 0x0c /* Both mechanisms enabled */
129 #define EEPROM_CHECKSUM_EL3 0x17
131 /**************************************************************************
133 * These are the registers for the 3Com 3c509 and their bit patterns when *
134 * applicable. They have been taken out the the "EtherLink III Parallel *
135 * Tasking EISA and ISA Technical Reference" "Beta Draft 10/30/92" manual *
138 **************************************************************************/
140 #define EP_COMMAND 0x0e /* Write. BASE+0x0e is always a
142 #define EP_STATUS 0x0e /* Read. BASE+0x0e is always status
144 #define EP_WINDOW 0x0f /* Read. BASE+0x0f is always window
147 * Window 0 registers. Setup.
150 #define EP_W0_EEPROM_DATA 0x0c
151 #define EP_W0_EEPROM_COMMAND 0x0a
152 #define EP_W0_RESOURCE_CFG 0x08
153 #define EP_W0_ADDRESS_CFG 0x06
154 #define EP_W0_CONFIG_CTRL 0x04
156 #define EP_W0_PRODUCT_ID 0x02
157 #define EP_W0_MFG_ID 0x00
160 * Window 1 registers. Operating Set.
163 #define EP_W1_TX_PIO_WR_2 0x02
164 #define EP_W1_TX_PIO_WR_1 0x00
166 #define EP_W1_FREE_TX 0x0c
167 #define EP_W1_TX_STATUS 0x0b /* byte */
168 #define EP_W1_TIMER 0x0a /* byte */
169 #define EP_W1_RX_STATUS 0x08
170 #define EP_W1_RX_PIO_RD_2 0x02
171 #define EP_W1_RX_PIO_RD_1 0x00
174 * Window 2 registers. Station Address Setup/Read
177 #define EP_W2_ADDR_5 0x05
178 #define EP_W2_ADDR_4 0x04
179 #define EP_W2_ADDR_3 0x03
180 #define EP_W2_ADDR_2 0x02
181 #define EP_W2_ADDR_1 0x01
182 #define EP_W2_ADDR_0 0x00
185 * Window 3 registers. FIFO Management.
188 #define EP_W3_FREE_TX 0x0c
189 #define EP_W3_FREE_RX 0x0a
190 #define EP_W3_OPTIONS 0x08
193 * Window 4 registers. Diagnostics.
196 #define EP_W4_MEDIA_TYPE 0x0a
197 #define EP_W4_CTRLR_STATUS 0x08
198 #define EP_W4_NET_DIAG 0x06
199 #define EP_W4_FIFO_DIAG 0x04
200 #define EP_W4_HOST_DIAG 0x02
201 #define EP_W4_TX_DIAG 0x00
204 * Window 5 Registers. Results and Internal status.
207 #define EP_W5_READ_0_MASK 0x0c
208 #define EP_W5_INTR_MASK 0x0a
209 #define EP_W5_RX_FILTER 0x08
210 #define EP_W5_RX_EARLY_THRESH 0x06
211 #define EP_W5_TX_AVAIL_THRESH 0x02
212 #define EP_W5_TX_START_THRESH 0x00
215 * Window 6 registers. Statistics.
218 #define TX_TOTAL_OK 0x0c
219 #define RX_TOTAL_OK 0x0a
220 #define TX_DEFERRALS 0x08
221 #define RX_FRAMES_OK 0x07
222 #define TX_FRAMES_OK 0x06
223 #define RX_OVERRUNS 0x05
224 #define TX_COLLISIONS 0x04
225 #define TX_AFTER_1_COLLISION 0x03
226 #define TX_AFTER_X_COLLISIONS 0x02
227 #define TX_NO_SQE 0x01
228 #define TX_CD_LOST 0x00
230 /****************************************
232 * Register definitions.
234 ****************************************/
237 * Command parameter that disables threshold interrupts
238 * PIO (3c509) cards use 2044. The fifo word-oriented and 2044--2047 work.
239 * "busmastering" cards need 8188.
240 * The implicit two-bit upshift done by busmastering cards means
241 * a value of 2047 disables threshold interrupts on both.
243 #define EP_THRESH_DISABLE 2047
246 * Command register. All windows.
249 * 15-11: 5-bit code for command to be executed.
250 * 10-0: 11-bit arg if any. For commands with no args;
251 * this can be set to anything.
253 #define GLOBAL_RESET (u_short) 0x0000 /* Wait at least 1ms
255 #define WINDOW_SELECT (u_short) (0x1<<11)
256 #define START_TRANSCEIVER (u_short) (0x2<<11) /* Read ADDR_CFG reg to
260 * before using trans-
262 #define RX_DISABLE (u_short) (0x3<<11) /* state disabled on
264 #define RX_ENABLE (u_short) (0x4<<11)
265 #define RX_RESET (u_short) (0x5<<11)
266 #define RX_DISCARD_TOP_PACK (u_short) (0x8<<11)
267 #define TX_ENABLE (u_short) (0x9<<11)
268 #define TX_DISABLE (u_short) (0xa<<11)
269 #define TX_RESET (u_short) (0xb<<11)
270 #define REQ_INTR (u_short) (0xc<<11)
271 #define SET_INTR_MASK (u_short) (0xe<<11)
272 #define SET_RD_0_MASK (u_short) (0xf<<11)
273 #define SET_RX_FILTER (u_short) (0x10<<11)
274 #define FIL_INDIVIDUAL (u_short) (0x1)
275 #define FIL_GROUP (u_short) (0x2)
276 #define FIL_BRDCST (u_short) (0x4)
277 #define FIL_ALL (u_short) (0x8)
278 #define SET_RX_EARLY_THRESH (u_short) (0x11<<11)
279 #define SET_TX_AVAIL_THRESH (u_short) (0x12<<11)
280 #define SET_TX_START_THRESH (u_short) (0x13<<11)
281 #define STATS_ENABLE (u_short) (0x15<<11)
282 #define STATS_DISABLE (u_short) (0x16<<11)
283 #define STOP_TRANSCEIVER (u_short) (0x17<<11)
285 * The following C_* acknowledge the various interrupts. Some of them don't
286 * do anything. See the manual.
288 #define ACK_INTR (u_short) (0x6800)
289 #define C_INTR_LATCH (u_short) (ACK_INTR|0x1)
290 #define C_CARD_FAILURE (u_short) (ACK_INTR|0x2)
291 #define C_TX_COMPLETE (u_short) (ACK_INTR|0x4)
292 #define C_TX_AVAIL (u_short) (ACK_INTR|0x8)
293 #define C_RX_COMPLETE (u_short) (ACK_INTR|0x10)
294 #define C_RX_EARLY (u_short) (ACK_INTR|0x20)
295 #define C_INT_RQD (u_short) (ACK_INTR|0x40)
296 #define C_UPD_STATS (u_short) (ACK_INTR|0x80)
297 #define C_MASK (u_short) 0xFF /* mask of C_* */
300 * Status register. All windows.
302 * 15-13: Window number(0-7).
303 * 12: Command_in_progress.
308 * 7: Update Statistics.
309 * 6: Interrupt Requested.
314 * 1: Adapter Failure.
315 * 0: Interrupt Latch.
317 #define S_INTR_LATCH (u_short) (0x1)
318 #define S_CARD_FAILURE (u_short) (0x2)
319 #define S_TX_COMPLETE (u_short) (0x4)
320 #define S_TX_AVAIL (u_short) (0x8)
321 #define S_RX_COMPLETE (u_short) (0x10)
322 #define S_RX_EARLY (u_short) (0x20)
323 #define S_INT_RQD (u_short) (0x40)
324 #define S_UPD_STATS (u_short) (0x80)
325 #define S_MASK (u_short) 0xFF /* mask of S_* */
326 #define S_5_INTS (S_CARD_FAILURE|S_TX_COMPLETE|\
327 S_TX_AVAIL|S_RX_COMPLETE|S_RX_EARLY)
328 #define S_COMMAND_IN_PROGRESS (u_short) (0x1000)
330 /* Address Config. Register.
334 #define ACF_CONNECTOR_BITS 14
335 #define ACF_CONNECTOR_UTP 0
336 #define ACF_CONNECTOR_AUI 1
337 #define ACF_CONNECTOR_BNC 3
339 /* Resource configuration register.
344 #define SET_IRQ(base,irq) outw((base) + EP_W0_RESOURCE_CFG, \
345 ((inw((base) + EP_W0_RESOURCE_CFG) & 0x0fff) | \
346 ((u_short)(irq)<<12)) ) /* set IRQ i */
350 * RX Status. Window 1/Port 08
352 * 15: Incomplete or FIFO empty.
353 * 14: 1: Error in RX Packet 0: Incomplete or no error.
354 * 13-11: Type of error.
356 * 1011 = Run Packet Error.
357 * 1100 = Alignment Error.
359 * 1001 = Oversize Packet Error (>1514 bytes)
360 * 0010 = Dribble Bits.
361 * (all other error codes, no errors.)
363 * 10-0: RX Bytes (0-1514)
365 #define ERR_RX_INCOMPLETE (u_short) (0x1<<15)
366 #define ERR_RX (u_short) (0x1<<14)
367 #define ERR_RX_OVERRUN (u_short) (0x8<<11)
368 #define ERR_RX_RUN_PKT (u_short) (0xb<<11)
369 #define ERR_RX_ALIGN (u_short) (0xc<<11)
370 #define ERR_RX_CRC (u_short) (0xd<<11)
371 #define ERR_RX_OVERSIZE (u_short) (0x9<<11)
372 #define ERR_RX_DRIBBLE (u_short) (0x2<<11)
376 * TX Status. Window 1/Port 0B
378 * Reports the transmit status of a completed transmission. Writing this
379 * register pops the transmit completion stack.
381 * Window 1/Port 0x0b.
384 * 6: Interrupt on successful transmission requested.
385 * 5: Jabber Error (TP Only, TX Reset required. )
386 * 4: Underrun (TX Reset required. )
387 * 3: Maximum Collisions.
388 * 2: TX Status Overflow.
392 #define TXS_COMPLETE 0x80
393 #define TXS_SUCCES_INTR_REQ 0x40
394 #define TXS_JABBER 0x20
395 #define TXS_UNDERRUN 0x10
396 #define TXS_MAX_COLLISION 0x8
397 #define TXS_STATUS_OVERFLOW 0x4
400 * Configuration control register.
404 #define IS_AUI (1<<13)
405 #define IS_BNC (1<<12)
406 #define IS_UTP (1<<9)
408 #define ENABLE_DRQ_IRQ 0x0001
409 #define W0_P4_CMD_RESET_ADAPTER 0x4
410 #define W0_P4_CMD_ENABLE_ADAPTER 0x1
412 * Media type and status.
415 #define ENABLE_UTP 0xc0
416 #define DISABLE_UTP 0x0
419 * Misc defines for various things.
421 #define ACTIVATE_ADAPTER_TO_CONFIG 0xff /* to the id_port */
422 #define MFG_ID 0x6d50 /* in EEPROM and W0 ADDR_CONFIG */
423 #define PROD_ID 0x9150
429 #define RX_BYTES_MASK (u_short) (0x07ff)
434 #define EP_FLAGS_100TX 0x1