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Linux 4.19.133
[linux/fpc-iii.git] / drivers / net / ethernet / xircom / xirc2ps_cs.c
blobfd5288ff53b5303271f20137dda57f125d879901
1 /* [xirc2ps_cs.c wk 03.11.99] (1.40 1999/11/18 00:06:03)
2 * Xircom CreditCard Ethernet Adapter IIps driver
3 * Xircom Realport 10/100 (RE-100) driver
4 *
5 * This driver supports various Xircom CreditCard Ethernet adapters
6 * including the CE2, CE IIps, RE-10, CEM28, CEM33, CE33, CEM56,
7 * CE3-100, CE3B, RE-100, REM10BT, and REM56G-100.
8 *
9 * 2000-09-24 <psheer@icon.co.za> The Xircom CE3B-100 may not
10 * autodetect the media properly. In this case use the
11 * if_port=1 (for 10BaseT) or if_port=4 (for 100BaseT) options
12 * to force the media type.
13 *
14 * Written originally by Werner Koch based on David Hinds' skeleton of the
15 * PCMCIA driver.
16 *
17 * Copyright (c) 1997,1998 Werner Koch (dd9jn)
18 *
19 * This driver is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 2 of the License, or
22 * (at your option) any later version.
23 *
24 * It is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, see <http://www.gnu.org/licenses/>.
31 *
32 *
33 * ALTERNATIVELY, this driver may be distributed under the terms of
34 * the following license, in which case the provisions of this license
35 * are required INSTEAD OF the GNU General Public License. (This clause
36 * is necessary due to a potential bad interaction between the GPL and
37 * the restrictions contained in a BSD-style copyright.)
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 * 1. Redistributions of source code must retain the above copyright
43 * notice, and the entire permission notice in its entirety,
44 * including the disclaimer of warranties.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 * 3. The name of the author may not be used to endorse or promote
49 * products derived from this software without specific prior
50 * written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
53 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
55 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
56 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
57 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
58 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
60 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
61 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
62 * OF THE POSSIBILITY OF SUCH DAMAGE.
63 */
64
65 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
66
67 #include <linux/module.h>
68 #include <linux/kernel.h>
69 #include <linux/init.h>
70 #include <linux/ptrace.h>
71 #include <linux/slab.h>
72 #include <linux/string.h>
73 #include <linux/timer.h>
74 #include <linux/interrupt.h>
75 #include <linux/in.h>
76 #include <linux/delay.h>
77 #include <linux/ethtool.h>
78 #include <linux/netdevice.h>
79 #include <linux/etherdevice.h>
80 #include <linux/skbuff.h>
81 #include <linux/if_arp.h>
82 #include <linux/ioport.h>
83 #include <linux/bitops.h>
84 #include <linux/mii.h>
85
86 #include <pcmcia/cistpl.h>
87 #include <pcmcia/cisreg.h>
88 #include <pcmcia/ciscode.h>
89
90 #include <asm/io.h>
91 #include <linux/uaccess.h>
92
93 #ifndef MANFID_COMPAQ
94 #define MANFID_COMPAQ 0x0138
95 #define MANFID_COMPAQ2 0x0183 /* is this correct? */
96 #endif
97
98 #include <pcmcia/ds.h>
99
100 /* Time in jiffies before concluding Tx hung */
101 #define TX_TIMEOUT ((400*HZ)/1000)
102
103 /****************
104 * Some constants used to access the hardware
105 */
106
107 /* Register offsets and value constans */
108 #define XIRCREG_CR 0 /* Command register (wr) */
109 enum xirc_cr {
110 TransmitPacket = 0x01,
111 SoftReset = 0x02,
112 EnableIntr = 0x04,
113 ForceIntr = 0x08,
114 ClearTxFIFO = 0x10,
115 ClearRxOvrun = 0x20,
116 RestartTx = 0x40
117 };
118 #define XIRCREG_ESR 0 /* Ethernet status register (rd) */
119 enum xirc_esr {
120 FullPktRcvd = 0x01, /* full packet in receive buffer */
121 PktRejected = 0x04, /* a packet has been rejected */
122 TxPktPend = 0x08, /* TX Packet Pending */
123 IncorPolarity = 0x10,
124 MediaSelect = 0x20 /* set if TP, clear if AUI */
125 };
126 #define XIRCREG_PR 1 /* Page Register select */
127 #define XIRCREG_EDP 4 /* Ethernet Data Port Register */
128 #define XIRCREG_ISR 6 /* Ethernet Interrupt Status Register */
129 enum xirc_isr {
130 TxBufOvr = 0x01, /* TX Buffer Overflow */
131 PktTxed = 0x02, /* Packet Transmitted */
132 MACIntr = 0x04, /* MAC Interrupt occurred */
133 TxResGrant = 0x08, /* Tx Reservation Granted */
134 RxFullPkt = 0x20, /* Rx Full Packet */
135 RxPktRej = 0x40, /* Rx Packet Rejected */
136 ForcedIntr= 0x80 /* Forced Interrupt */
137 };
138 #define XIRCREG1_IMR0 12 /* Ethernet Interrupt Mask Register (on page 1)*/
139 #define XIRCREG1_IMR1 13
140 #define XIRCREG0_TSO 8 /* Transmit Space Open Register (on page 0)*/
141 #define XIRCREG0_TRS 10 /* Transmit reservation Size Register (page 0)*/
142 #define XIRCREG0_DO 12 /* Data Offset Register (page 0) (wr) */
143 #define XIRCREG0_RSR 12 /* Receive Status Register (page 0) (rd) */
144 enum xirc_rsr {
145 PhyPkt = 0x01, /* set:physical packet, clear: multicast packet */
146 BrdcstPkt = 0x02, /* set if it is a broadcast packet */
147 PktTooLong = 0x04, /* set if packet length > 1518 */
148 AlignErr = 0x10, /* incorrect CRC and last octet not complete */
149 CRCErr = 0x20, /* incorrect CRC and last octet is complete */
150 PktRxOk = 0x80 /* received ok */
151 };
152 #define XIRCREG0_PTR 13 /* packets transmitted register (rd) */
153 #define XIRCREG0_RBC 14 /* receive byte count regsister (rd) */
154 #define XIRCREG1_ECR 14 /* ethernet configurationn register */
155 enum xirc_ecr {
156 FullDuplex = 0x04, /* enable full duplex mode */
157 LongTPMode = 0x08, /* adjust for longer lengths of TP cable */
158 DisablePolCor = 0x10,/* disable auto polarity correction */
159 DisableLinkPulse = 0x20, /* disable link pulse generation */
160 DisableAutoTx = 0x40, /* disable auto-transmit */
161 };
162 #define XIRCREG2_RBS 8 /* receive buffer start register */
163 #define XIRCREG2_LED 10 /* LED Configuration register */
164 /* values for the leds: Bits 2-0 for led 1
165 * 0 disabled Bits 5-3 for led 2
166 * 1 collision
167 * 2 noncollision
168 * 3 link_detected
169 * 4 incor_polarity
170 * 5 jabber
171 * 6 auto_assertion
172 * 7 rx_tx_activity
173 */
174 #define XIRCREG2_MSR 12 /* Mohawk specific register */
175
176 #define XIRCREG4_GPR0 8 /* General Purpose Register 0 */
177 #define XIRCREG4_GPR1 9 /* General Purpose Register 1 */
178 #define XIRCREG2_GPR2 13 /* General Purpose Register 2 (page2!)*/
179 #define XIRCREG4_BOV 10 /* Bonding Version Register */
180 #define XIRCREG4_LMA 12 /* Local Memory Address Register */
181 #define XIRCREG4_LMD 14 /* Local Memory Data Port */
182 /* MAC register can only by accessed with 8 bit operations */
183 #define XIRCREG40_CMD0 8 /* Command Register (wr) */
184 enum xirc_cmd { /* Commands */
185 Transmit = 0x01,
186 EnableRecv = 0x04,
187 DisableRecv = 0x08,
188 Abort = 0x10,
189 Online = 0x20,
190 IntrAck = 0x40,
191 Offline = 0x80
192 };
193 #define XIRCREG5_RHSA0 10 /* Rx Host Start Address */
194 #define XIRCREG40_RXST0 9 /* Receive Status Register */
195 #define XIRCREG40_TXST0 11 /* Transmit Status Register 0 */
196 #define XIRCREG40_TXST1 12 /* Transmit Status Register 10 */
197 #define XIRCREG40_RMASK0 13 /* Receive Mask Register */
198 #define XIRCREG40_TMASK0 14 /* Transmit Mask Register 0 */
199 #define XIRCREG40_TMASK1 15 /* Transmit Mask Register 0 */
200 #define XIRCREG42_SWC0 8 /* Software Configuration 0 */
201 #define XIRCREG42_SWC1 9 /* Software Configuration 1 */
202 #define XIRCREG42_BOC 10 /* Back-Off Configuration */
203 #define XIRCREG44_TDR0 8 /* Time Domain Reflectometry 0 */
204 #define XIRCREG44_TDR1 9 /* Time Domain Reflectometry 1 */
205 #define XIRCREG44_RXBC_LO 10 /* Rx Byte Count 0 (rd) */
206 #define XIRCREG44_RXBC_HI 11 /* Rx Byte Count 1 (rd) */
207 #define XIRCREG45_REV 15 /* Revision Register (rd) */
208 #define XIRCREG50_IA 8 /* Individual Address (8-13) */
209
210 static const char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" };
211
212 /* card types */
213 #define XIR_UNKNOWN 0 /* unknown: not supported */
214 #define XIR_CE 1 /* (prodid 1) different hardware: not supported */
215 #define XIR_CE2 2 /* (prodid 2) */
216 #define XIR_CE3 3 /* (prodid 3) */
217 #define XIR_CEM 4 /* (prodid 1) different hardware: not supported */
218 #define XIR_CEM2 5 /* (prodid 2) */
219 #define XIR_CEM3 6 /* (prodid 3) */
220 #define XIR_CEM33 7 /* (prodid 4) */
221 #define XIR_CEM56M 8 /* (prodid 5) */
222 #define XIR_CEM56 9 /* (prodid 6) */
223 #define XIR_CM28 10 /* (prodid 3) modem only: not supported here */
224 #define XIR_CM33 11 /* (prodid 4) modem only: not supported here */
225 #define XIR_CM56 12 /* (prodid 5) modem only: not supported here */
226 #define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */
227 #define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */
228 /*====================================================================*/
229
230 /* Module parameters */
231
232 MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver");
233 MODULE_LICENSE("Dual MPL/GPL");
234
235 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
236
237 INT_MODULE_PARM(if_port, 0);
238 INT_MODULE_PARM(full_duplex, 0);
239 INT_MODULE_PARM(do_sound, 1);
240 INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */
241
242 /*====================================================================*/
243
244 /* We do not process more than these number of bytes during one
245 * interrupt. (Of course we receive complete packets, so this is not
246 * an exact value).
247 * Something between 2000..22000; first value gives best interrupt latency,
248 * the second enables the usage of the complete on-chip buffer. We use the
249 * high value as the initial value.
250 */
251 static unsigned maxrx_bytes = 22000;
252
253 /* MII management prototypes */
254 static void mii_idle(unsigned int ioaddr);
255 static void mii_putbit(unsigned int ioaddr, unsigned data);
256 static int mii_getbit(unsigned int ioaddr);
257 static void mii_wbits(unsigned int ioaddr, unsigned data, int len);
258 static unsigned mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg);
259 static void mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg,
260 unsigned data, int len);
261
262 static int has_ce2_string(struct pcmcia_device * link);
263 static int xirc2ps_config(struct pcmcia_device * link);
264 static void xirc2ps_release(struct pcmcia_device * link);
265 static void xirc2ps_detach(struct pcmcia_device *p_dev);
266
267 static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id);
268
269 struct local_info {
270 struct net_device *dev;
271 struct pcmcia_device *p_dev;
272
273 int card_type;
274 int probe_port;
275 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */
276 int mohawk; /* a CE3 type card */
277 int dingo; /* a CEM56 type card */
278 int new_mii; /* has full 10baseT/100baseT MII */
279 int modem; /* is a multi function card (i.e with a modem) */
280 void __iomem *dingo_ccr; /* only used for CEM56 cards */
281 unsigned last_ptr_value; /* last packets transmitted value */
282 const char *manf_str;
283 struct work_struct tx_timeout_task;
284 };
285
286 /****************
287 * Some more prototypes
288 */
289 static netdev_tx_t do_start_xmit(struct sk_buff *skb,
290 struct net_device *dev);
291 static void xirc_tx_timeout(struct net_device *dev);
292 static void xirc2ps_tx_timeout_task(struct work_struct *work);
293 static void set_addresses(struct net_device *dev);
294 static void set_multicast_list(struct net_device *dev);
295 static int set_card_type(struct pcmcia_device *link);
296 static int do_config(struct net_device *dev, struct ifmap *map);
297 static int do_open(struct net_device *dev);
298 static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
299 static const struct ethtool_ops netdev_ethtool_ops;
300 static void hardreset(struct net_device *dev);
301 static void do_reset(struct net_device *dev, int full);
302 static int init_mii(struct net_device *dev);
303 static void do_powerdown(struct net_device *dev);
304 static int do_stop(struct net_device *dev);
305
306 /*=============== Helper functions =========================*/
307 #define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR)
308 #define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))
309 #define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))
310 #define PutByte(reg,value) outb((value), ioaddr+(reg))
311 #define PutWord(reg,value) outw((value), ioaddr+(reg))
312
313 /*====== Functions used for debugging =================================*/
314 #if 0 /* reading regs may change system status */
315 static void
316 PrintRegisters(struct net_device *dev)
317 {
318 unsigned int ioaddr = dev->base_addr;
319
320 if (pc_debug > 1) {
321 int i, page;
322
323 printk(KERN_DEBUG pr_fmt("Register common: "));
324 for (i = 0; i < 8; i++)
325 pr_cont(" %2.2x", GetByte(i));
326 pr_cont("\n");
327 for (page = 0; page <= 8; page++) {
328 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page);
329 SelectPage(page);
330 for (i = 8; i < 16; i++)
331 pr_cont(" %2.2x", GetByte(i));
332 pr_cont("\n");
333 }
334 for (page=0x40 ; page <= 0x5f; page++) {
335 if (page == 0x43 || (page >= 0x46 && page <= 0x4f) ||
336 (page >= 0x51 && page <=0x5e))
337 continue;
338 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page);
339 SelectPage(page);
340 for (i = 8; i < 16; i++)
341 pr_cont(" %2.2x", GetByte(i));
342 pr_cont("\n");
343 }
344 }
345 }
346 #endif /* 0 */
347
348 /*============== MII Management functions ===============*/
349
350 /****************
351 * Turn around for read
352 */
353 static void
354 mii_idle(unsigned int ioaddr)
355 {
356 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */
357 udelay(1);
358 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */
359 udelay(1);
360 }
361
362 /****************
363 * Write a bit to MDI/O
364 */
365 static void
366 mii_putbit(unsigned int ioaddr, unsigned data)
367 {
368 #if 1
369 if (data) {
370 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */
371 udelay(1);
372 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */
373 udelay(1);
374 } else {
375 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */
376 udelay(1);
377 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */
378 udelay(1);
379 }
380 #else
381 if (data) {
382 PutWord(XIRCREG2_GPR2-1, 0x0e0e);
383 udelay(1);
384 PutWord(XIRCREG2_GPR2-1, 0x0f0f);
385 udelay(1);
386 } else {
387 PutWord(XIRCREG2_GPR2-1, 0x0c0c);
388 udelay(1);
389 PutWord(XIRCREG2_GPR2-1, 0x0d0d);
390 udelay(1);
391 }
392 #endif
393 }
394
395 /****************
396 * Get a bit from MDI/O
397 */
398 static int
399 mii_getbit(unsigned int ioaddr)
400 {
401 unsigned d;
402
403 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */
404 udelay(1);
405 d = GetByte(XIRCREG2_GPR2); /* read MDIO */
406 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */
407 udelay(1);
408 return d & 0x20; /* read MDIO */
409 }
410
411 static void
412 mii_wbits(unsigned int ioaddr, unsigned data, int len)
413 {
414 unsigned m = 1 << (len-1);
415 for (; m; m >>= 1)
416 mii_putbit(ioaddr, data & m);
417 }
418
419 static unsigned
420 mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg)
421 {
422 int i;
423 unsigned data=0, m;
424
425 SelectPage(2);
426 for (i=0; i < 32; i++) /* 32 bit preamble */
427 mii_putbit(ioaddr, 1);
428 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */
429 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
430 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */
431 mii_idle(ioaddr); /* turn around */
432 mii_getbit(ioaddr);
433
434 for (m = 1<<15; m; m >>= 1)
435 if (mii_getbit(ioaddr))
436 data |= m;
437 mii_idle(ioaddr);
438 return data;
439 }
440
441 static void
442 mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data,
443 int len)
444 {
445 int i;
446
447 SelectPage(2);
448 for (i=0; i < 32; i++) /* 32 bit preamble */
449 mii_putbit(ioaddr, 1);
450 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */
451 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
452 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */
453 mii_putbit(ioaddr, 1); /* turn around */
454 mii_putbit(ioaddr, 0);
455 mii_wbits(ioaddr, data, len); /* And write the data */
456 mii_idle(ioaddr);
457 }
458
459 /*============= Main bulk of functions =========================*/
460
461 static const struct net_device_ops netdev_ops = {
462 .ndo_open = do_open,
463 .ndo_stop = do_stop,
464 .ndo_start_xmit = do_start_xmit,
465 .ndo_tx_timeout = xirc_tx_timeout,
466 .ndo_set_config = do_config,
467 .ndo_do_ioctl = do_ioctl,
468 .ndo_set_rx_mode = set_multicast_list,
469 .ndo_set_mac_address = eth_mac_addr,
470 .ndo_validate_addr = eth_validate_addr,
471 };
472
473 static int
474 xirc2ps_probe(struct pcmcia_device *link)
475 {
476 struct net_device *dev;
477 struct local_info *local;
478
479 dev_dbg(&link->dev, "attach()\n");
480
481 /* Allocate the device structure */
482 dev = alloc_etherdev(sizeof(struct local_info));
483 if (!dev)
484 return -ENOMEM;
485 local = netdev_priv(dev);
486 local->dev = dev;
487 local->p_dev = link;
488 link->priv = dev;
489
490 /* General socket configuration */
491 link->config_index = 1;
492
493 /* Fill in card specific entries */
494 dev->netdev_ops = &netdev_ops;
495 dev->ethtool_ops = &netdev_ethtool_ops;
496 dev->watchdog_timeo = TX_TIMEOUT;
497 INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task);
498
499 return xirc2ps_config(link);
500 } /* xirc2ps_attach */
501
502 static void
503 xirc2ps_detach(struct pcmcia_device *link)
504 {
505 struct net_device *dev = link->priv;
506
507 dev_dbg(&link->dev, "detach\n");
508
509 unregister_netdev(dev);
510
511 xirc2ps_release(link);
512
513 free_netdev(dev);
514 } /* xirc2ps_detach */
515
516 /****************
517 * Detect the type of the card. s is the buffer with the data of tuple 0x20
518 * Returns: 0 := not supported
519 * mediaid=11 and prodid=47
520 * Media-Id bits:
521 * Ethernet 0x01
522 * Tokenring 0x02
523 * Arcnet 0x04
524 * Wireless 0x08
525 * Modem 0x10
526 * GSM only 0x20
527 * Prod-Id bits:
528 * Pocket 0x10
529 * External 0x20
530 * Creditcard 0x40
531 * Cardbus 0x80
532 *
533 */
534 static int
535 set_card_type(struct pcmcia_device *link)
536 {
537 struct net_device *dev = link->priv;
538 struct local_info *local = netdev_priv(dev);
539 u8 *buf;
540 unsigned int cisrev, mediaid, prodid;
541 size_t len;
542
543 len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf);
544 if (len < 5) {
545 dev_err(&link->dev, "invalid CIS -- sorry\n");
546 return 0;
547 }
548
549 cisrev = buf[2];
550 mediaid = buf[3];
551 prodid = buf[4];
552
553 dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n",
554 cisrev, mediaid, prodid);
555
556 local->mohawk = 0;
557 local->dingo = 0;
558 local->modem = 0;
559 local->card_type = XIR_UNKNOWN;
560 if (!(prodid & 0x40)) {
561 pr_notice("Oops: Not a creditcard\n");
562 return 0;
563 }
564 if (!(mediaid & 0x01)) {
565 pr_notice("Not an Ethernet card\n");
566 return 0;
567 }
568 if (mediaid & 0x10) {
569 local->modem = 1;
570 switch(prodid & 15) {
571 case 1: local->card_type = XIR_CEM ; break;
572 case 2: local->card_type = XIR_CEM2 ; break;
573 case 3: local->card_type = XIR_CEM3 ; break;
574 case 4: local->card_type = XIR_CEM33 ; break;
575 case 5: local->card_type = XIR_CEM56M;
576 local->mohawk = 1;
577 break;
578 case 6:
579 case 7: /* 7 is the RealPort 10/56 */
580 local->card_type = XIR_CEM56 ;
581 local->mohawk = 1;
582 local->dingo = 1;
583 break;
584 }
585 } else {
586 switch(prodid & 15) {
587 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
588 break;
589 case 2: local->card_type = XIR_CE2; break;
590 case 3: local->card_type = XIR_CE3;
591 local->mohawk = 1;
592 break;
593 }
594 }
595 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
596 pr_notice("Sorry, this is an old CE card\n");
597 return 0;
598 }
599 if (local->card_type == XIR_UNKNOWN)
600 pr_notice("unknown card (mediaid=%02x prodid=%02x)\n", mediaid, prodid);
601
602 return 1;
603 }
604
605 /****************
606 * There are some CE2 cards out which claim to be a CE card.
607 * This function looks for a "CE2" in the 3rd version field.
608 * Returns: true if this is a CE2
609 */
610 static int
611 has_ce2_string(struct pcmcia_device * p_dev)
612 {
613 if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2"))
614 return 1;
615 return 0;
616 }
617
618 static int
619 xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data)
620 {
621 unsigned int ioaddr;
622
623 if ((p_dev->resource[0]->start & 0xf) == 8)
624 return -ENODEV;
625
626 p_dev->resource[0]->end = 16;
627 p_dev->resource[1]->end = 8;
628 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
629 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
630 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
631 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
632 p_dev->io_lines = 10;
633
634 p_dev->resource[1]->start = p_dev->resource[0]->start;
635 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
636 p_dev->resource[0]->start = ioaddr;
637 if (!pcmcia_request_io(p_dev))
638 return 0;
639 }
640 return -ENODEV;
641 }
642
643 static int
644 xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data)
645 {
646 int *pass = priv_data;
647 resource_size_t tmp = p_dev->resource[1]->start;
648
649 tmp += (*pass ? (p_dev->config_index & 0x20 ? -24 : 8)
650 : (p_dev->config_index & 0x20 ? 8 : -24));
651
652 if ((p_dev->resource[0]->start & 0xf) == 8)
653 return -ENODEV;
654
655 p_dev->resource[0]->end = 18;
656 p_dev->resource[1]->end = 8;
657 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
658 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
659 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
660 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
661 p_dev->io_lines = 10;
662
663 p_dev->resource[1]->start = p_dev->resource[0]->start;
664 p_dev->resource[0]->start = tmp;
665 return pcmcia_request_io(p_dev);
666 }
667
668
669 static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev,
670 tuple_t *tuple,
671 void *priv)
672 {
673 struct net_device *dev = priv;
674 int i;
675
676 if (tuple->TupleDataLen != 13)
677 return -EINVAL;
678 if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) ||
679 (tuple->TupleData[2] != 6))
680 return -EINVAL;
681 /* another try (James Lehmer's CE2 version 4.1)*/
682 for (i = 2; i < 6; i++)
683 dev->dev_addr[i] = tuple->TupleData[i+2];
684 return 0;
685 };
686
687
688 static int
689 xirc2ps_config(struct pcmcia_device * link)
690 {
691 struct net_device *dev = link->priv;
692 struct local_info *local = netdev_priv(dev);
693 unsigned int ioaddr;
694 int err;
695 u8 *buf;
696 size_t len;
697
698 local->dingo_ccr = NULL;
699
700 dev_dbg(&link->dev, "config\n");
701
702 /* Is this a valid card */
703 if (link->has_manf_id == 0) {
704 pr_notice("manfid not found in CIS\n");
705 goto failure;
706 }
707
708 switch (link->manf_id) {
709 case MANFID_XIRCOM:
710 local->manf_str = "Xircom";
711 break;
712 case MANFID_ACCTON:
713 local->manf_str = "Accton";
714 break;
715 case MANFID_COMPAQ:
716 case MANFID_COMPAQ2:
717 local->manf_str = "Compaq";
718 break;
719 case MANFID_INTEL:
720 local->manf_str = "Intel";
721 break;
722 case MANFID_TOSHIBA:
723 local->manf_str = "Toshiba";
724 break;
725 default:
726 pr_notice("Unknown Card Manufacturer ID: 0x%04x\n",
727 (unsigned)link->manf_id);
728 goto failure;
729 }
730 dev_dbg(&link->dev, "found %s card\n", local->manf_str);
731
732 if (!set_card_type(link)) {
733 pr_notice("this card is not supported\n");
734 goto failure;
735 }
736
737 /* get the ethernet address from the CIS */
738 err = pcmcia_get_mac_from_cis(link, dev);
739
740 /* not found: try to get the node-id from tuple 0x89 */
741 if (err) {
742 len = pcmcia_get_tuple(link, 0x89, &buf);
743 /* data layout looks like tuple 0x22 */
744 if (buf && len == 8) {
745 if (*buf == CISTPL_FUNCE_LAN_NODE_ID) {
746 int i;
747 for (i = 2; i < 6; i++)
748 dev->dev_addr[i] = buf[i+2];
749 } else
750 err = -1;
751 }
752 kfree(buf);
753 }
754
755 if (err)
756 err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev);
757
758 if (err) {
759 pr_notice("node-id not found in CIS\n");
760 goto failure;
761 }
762
763 if (local->modem) {
764 int pass;
765 link->config_flags |= CONF_AUTO_SET_IO;
766
767 if (local->dingo) {
768 /* Take the Modem IO port from the CIS and scan for a free
769 * Ethernet port */
770 if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL))
771 goto port_found;
772 } else {
773 /* We do 2 passes here: The first one uses the regular mapping and
774 * the second tries again, thereby considering that the 32 ports are
775 * mirrored every 32 bytes. Actually we use a mirrored port for
776 * the Mako if (on the first pass) the COR bit 5 is set.
777 */
778 for (pass=0; pass < 2; pass++)
779 if (!pcmcia_loop_config(link, xirc2ps_config_check,
780 &pass))
781 goto port_found;
782 /* if special option:
783 * try to configure as Ethernet only.
784 * .... */
785 }
786 pr_notice("no ports available\n");
787 } else {
788 link->io_lines = 10;
789 link->resource[0]->end = 16;
790 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
791 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
792 link->resource[0]->start = ioaddr;
793 if (!(err = pcmcia_request_io(link)))
794 goto port_found;
795 }
796 link->resource[0]->start = 0; /* let CS decide */
797 if ((err = pcmcia_request_io(link)))
798 goto config_error;
799 }
800 port_found:
801 if (err)
802 goto config_error;
803
804 /****************
805 * Now allocate an interrupt line. Note that this does not
806 * actually assign a handler to the interrupt.
807 */
808 if ((err=pcmcia_request_irq(link, xirc2ps_interrupt)))
809 goto config_error;
810
811 link->config_flags |= CONF_ENABLE_IRQ;
812 if (do_sound)
813 link->config_flags |= CONF_ENABLE_SPKR;
814
815 if ((err = pcmcia_enable_device(link)))
816 goto config_error;
817
818 if (local->dingo) {
819 /* Reset the modem's BAR to the correct value
820 * This is necessary because in the RequestConfiguration call,
821 * the base address of the ethernet port (BasePort1) is written
822 * to the BAR registers of the modem.
823 */
824 err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, (u8)
825 link->resource[1]->start & 0xff);
826 if (err)
827 goto config_error;
828
829 err = pcmcia_write_config_byte(link, CISREG_IOBASE_1,
830 (link->resource[1]->start >> 8) & 0xff);
831 if (err)
832 goto config_error;
833
834 /* There is no config entry for the Ethernet part which
835 * is at 0x0800. So we allocate a window into the attribute
836 * memory and write direct to the CIS registers
837 */
838 link->resource[2]->flags = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM |
839 WIN_ENABLE;
840 link->resource[2]->start = link->resource[2]->end = 0;
841 if ((err = pcmcia_request_window(link, link->resource[2], 0)))
842 goto config_error;
843
844 local->dingo_ccr = ioremap(link->resource[2]->start, 0x1000) + 0x0800;
845 if ((err = pcmcia_map_mem_page(link, link->resource[2], 0)))
846 goto config_error;
847
848 /* Setup the CCRs; there are no infos in the CIS about the Ethernet
849 * part.
850 */
851 writeb(0x47, local->dingo_ccr + CISREG_COR);
852 ioaddr = link->resource[0]->start;
853 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
854 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
855
856 #if 0
857 {
858 u_char tmp;
859 pr_info("ECOR:");
860 for (i=0; i < 7; i++) {
861 tmp = readb(local->dingo_ccr + i*2);
862 pr_cont(" %02x", tmp);
863 }
864 pr_cont("\n");
865 pr_info("DCOR:");
866 for (i=0; i < 4; i++) {
867 tmp = readb(local->dingo_ccr + 0x20 + i*2);
868 pr_cont(" %02x", tmp);
869 }
870 pr_cont("\n");
871 pr_info("SCOR:");
872 for (i=0; i < 10; i++) {
873 tmp = readb(local->dingo_ccr + 0x40 + i*2);
874 pr_cont(" %02x", tmp);
875 }
876 pr_cont("\n");
877 }
878 #endif
879
880 writeb(0x01, local->dingo_ccr + 0x20);
881 writeb(0x0c, local->dingo_ccr + 0x22);
882 writeb(0x00, local->dingo_ccr + 0x24);
883 writeb(0x00, local->dingo_ccr + 0x26);
884 writeb(0x00, local->dingo_ccr + 0x28);
885 }
886
887 /* The if_port symbol can be set when the module is loaded */
888 local->probe_port=0;
889 if (!if_port) {
890 local->probe_port = dev->if_port = 1;
891 } else if ((if_port >= 1 && if_port <= 2) ||
892 (local->mohawk && if_port==4))
893 dev->if_port = if_port;
894 else
895 pr_notice("invalid if_port requested\n");
896
897 /* we can now register the device with the net subsystem */
898 dev->irq = link->irq;
899 dev->base_addr = link->resource[0]->start;
900
901 if (local->dingo)
902 do_reset(dev, 1); /* a kludge to make the cem56 work */
903
904 SET_NETDEV_DEV(dev, &link->dev);
905
906 if ((err=register_netdev(dev))) {
907 pr_notice("register_netdev() failed\n");
908 goto config_error;
909 }
910
911 /* give some infos about the hardware */
912 netdev_info(dev, "%s: port %#3lx, irq %d, hwaddr %pM\n",
913 local->manf_str, (u_long)dev->base_addr, (int)dev->irq,
914 dev->dev_addr);
915
916 return 0;
917
918 config_error:
919 xirc2ps_release(link);
920 return -ENODEV;
921
922 failure:
923 return -ENODEV;
924 } /* xirc2ps_config */
925
926 static void
927 xirc2ps_release(struct pcmcia_device *link)
928 {
929 dev_dbg(&link->dev, "release\n");
930
931 if (link->resource[2]->end) {
932 struct net_device *dev = link->priv;
933 struct local_info *local = netdev_priv(dev);
934 if (local->dingo)
935 iounmap(local->dingo_ccr - 0x0800);
936 }
937 pcmcia_disable_device(link);
938 } /* xirc2ps_release */
939
940 /*====================================================================*/
941
942
943 static int xirc2ps_suspend(struct pcmcia_device *link)
944 {
945 struct net_device *dev = link->priv;
946
947 if (link->open) {
948 netif_device_detach(dev);
949 do_powerdown(dev);
950 }
951
952 return 0;
953 }
954
955 static int xirc2ps_resume(struct pcmcia_device *link)
956 {
957 struct net_device *dev = link->priv;
958
959 if (link->open) {
960 do_reset(dev,1);
961 netif_device_attach(dev);
962 }
963
964 return 0;
965 }
966
967
968 /*====================================================================*/
969
970 /****************
971 * This is the Interrupt service route.
972 */
973 static irqreturn_t
974 xirc2ps_interrupt(int irq, void *dev_id)
975 {
976 struct net_device *dev = (struct net_device *)dev_id;
977 struct local_info *lp = netdev_priv(dev);
978 unsigned int ioaddr;
979 u_char saved_page;
980 unsigned bytes_rcvd;
981 unsigned int_status, eth_status, rx_status, tx_status;
982 unsigned rsr, pktlen;
983 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
984 * is this something to worry about?
985 * -- on a laptop?
986 */
987
988 if (!netif_device_present(dev))
989 return IRQ_HANDLED;
990
991 ioaddr = dev->base_addr;
992 if (lp->mohawk) { /* must disable the interrupt */
993 PutByte(XIRCREG_CR, 0);
994 }
995
996 pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
997
998 saved_page = GetByte(XIRCREG_PR);
999 /* Read the ISR to see whats the cause for the interrupt.
1000 * This also clears the interrupt flags on CE2 cards
1001 */
1002 int_status = GetByte(XIRCREG_ISR);
1003 bytes_rcvd = 0;
1004 loop_entry:
1005 if (int_status == 0xff) { /* card may be ejected */
1006 pr_debug("%s: interrupt %d for dead card\n", dev->name, irq);
1007 goto leave;
1008 }
1009 eth_status = GetByte(XIRCREG_ESR);
1010
1011 SelectPage(0x40);
1012 rx_status = GetByte(XIRCREG40_RXST0);
1013 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
1014 tx_status = GetByte(XIRCREG40_TXST0);
1015 tx_status |= GetByte(XIRCREG40_TXST1) << 8;
1016 PutByte(XIRCREG40_TXST0, 0);
1017 PutByte(XIRCREG40_TXST1, 0);
1018
1019 pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
1020 dev->name, int_status, eth_status, rx_status, tx_status);
1021
1022 /***** receive section ******/
1023 SelectPage(0);
1024 while (eth_status & FullPktRcvd) {
1025 rsr = GetByte(XIRCREG0_RSR);
1026 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
1027 /* too many bytes received during this int, drop the rest of the
1028 * packets */
1029 dev->stats.rx_dropped++;
1030 pr_debug("%s: RX drop, too much done\n", dev->name);
1031 } else if (rsr & PktRxOk) {
1032 struct sk_buff *skb;
1033
1034 pktlen = GetWord(XIRCREG0_RBC);
1035 bytes_rcvd += pktlen;
1036
1037 pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen);
1038
1039 /* 1 extra so we can use insw */
1040 skb = netdev_alloc_skb(dev, pktlen + 3);
1041 if (!skb) {
1042 dev->stats.rx_dropped++;
1043 } else { /* okay get the packet */
1044 skb_reserve(skb, 2);
1045 if (lp->silicon == 0 ) { /* work around a hardware bug */
1046 unsigned rhsa; /* receive start address */
1047
1048 SelectPage(5);
1049 rhsa = GetWord(XIRCREG5_RHSA0);
1050 SelectPage(0);
1051 rhsa += 3; /* skip control infos */
1052 if (rhsa >= 0x8000)
1053 rhsa = 0;
1054 if (rhsa + pktlen > 0x8000) {
1055 unsigned i;
1056 u_char *buf = skb_put(skb, pktlen);
1057 for (i=0; i < pktlen ; i++, rhsa++) {
1058 buf[i] = GetByte(XIRCREG_EDP);
1059 if (rhsa == 0x8000) {
1060 rhsa = 0;
1061 i--;
1062 }
1063 }
1064 } else {
1065 insw(ioaddr+XIRCREG_EDP,
1066 skb_put(skb, pktlen), (pktlen+1)>>1);
1067 }
1068 }
1069 #if 0
1070 else if (lp->mohawk) {
1071 /* To use this 32 bit access we should use
1072 * a manual optimized loop
1073 * Also the words are swapped, we can get more
1074 * performance by using 32 bit access and swapping
1075 * the words in a register. Will need this for cardbus
1076 *
1077 * Note: don't forget to change the ALLOC_SKB to .. +3
1078 */
1079 unsigned i;
1080 u_long *p = skb_put(skb, pktlen);
1081 register u_long a;
1082 unsigned int edpreg = ioaddr+XIRCREG_EDP-2;
1083 for (i=0; i < len ; i += 4, p++) {
1084 a = inl(edpreg);
1085 __asm__("rorl $16,%0\n\t"
1086 :"=q" (a)
1087 : "0" (a));
1088 *p = a;
1089 }
1090 }
1091 #endif
1092 else {
1093 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
1094 (pktlen+1)>>1);
1095 }
1096 skb->protocol = eth_type_trans(skb, dev);
1097 netif_rx(skb);
1098 dev->stats.rx_packets++;
1099 dev->stats.rx_bytes += pktlen;
1100 if (!(rsr & PhyPkt))
1101 dev->stats.multicast++;
1102 }
1103 } else { /* bad packet */
1104 pr_debug("rsr=%#02x\n", rsr);
1105 }
1106 if (rsr & PktTooLong) {
1107 dev->stats.rx_frame_errors++;
1108 pr_debug("%s: Packet too long\n", dev->name);
1109 }
1110 if (rsr & CRCErr) {
1111 dev->stats.rx_crc_errors++;
1112 pr_debug("%s: CRC error\n", dev->name);
1113 }
1114 if (rsr & AlignErr) {
1115 dev->stats.rx_fifo_errors++; /* okay ? */
1116 pr_debug("%s: Alignment error\n", dev->name);
1117 }
1118
1119 /* clear the received/dropped/error packet */
1120 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
1121
1122 /* get the new ethernet status */
1123 eth_status = GetByte(XIRCREG_ESR);
1124 }
1125 if (rx_status & 0x10) { /* Receive overrun */
1126 dev->stats.rx_over_errors++;
1127 PutByte(XIRCREG_CR, ClearRxOvrun);
1128 pr_debug("receive overrun cleared\n");
1129 }
1130
1131 /***** transmit section ******/
1132 if (int_status & PktTxed) {
1133 unsigned n, nn;
1134
1135 n = lp->last_ptr_value;
1136 nn = GetByte(XIRCREG0_PTR);
1137 lp->last_ptr_value = nn;
1138 if (nn < n) /* rollover */
1139 dev->stats.tx_packets += 256 - n;
1140 else if (n == nn) { /* happens sometimes - don't know why */
1141 pr_debug("PTR not changed?\n");
1142 } else
1143 dev->stats.tx_packets += lp->last_ptr_value - n;
1144 netif_wake_queue(dev);
1145 }
1146 if (tx_status & 0x0002) { /* Excessive collisions */
1147 pr_debug("tx restarted due to excessive collisions\n");
1148 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
1149 }
1150 if (tx_status & 0x0040)
1151 dev->stats.tx_aborted_errors++;
1152
1153 /* recalculate our work chunk so that we limit the duration of this
1154 * ISR to about 1/10 of a second.
1155 * Calculate only if we received a reasonable amount of bytes.
1156 */
1157 if (bytes_rcvd > 1000) {
1158 u_long duration = jiffies - start_ticks;
1159
1160 if (duration >= HZ/10) { /* if more than about 1/10 second */
1161 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
1162 if (maxrx_bytes < 2000)
1163 maxrx_bytes = 2000;
1164 else if (maxrx_bytes > 22000)
1165 maxrx_bytes = 22000;
1166 pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n",
1167 maxrx_bytes, bytes_rcvd, duration);
1168 } else if (!duration && maxrx_bytes < 22000) {
1169 /* now much faster */
1170 maxrx_bytes += 2000;
1171 if (maxrx_bytes > 22000)
1172 maxrx_bytes = 22000;
1173 pr_debug("set maxrx=%u\n", maxrx_bytes);
1174 }
1175 }
1176
1177 leave:
1178 if (lockup_hack) {
1179 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
1180 goto loop_entry;
1181 }
1182 SelectPage(saved_page);
1183 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
1184 /* Instead of dropping packets during a receive, we could
1185 * force an interrupt with this command:
1186 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
1187 */
1188 return IRQ_HANDLED;
1189 } /* xirc2ps_interrupt */
1190
1191 /*====================================================================*/
1192
1193 static void
1194 xirc2ps_tx_timeout_task(struct work_struct *work)
1195 {
1196 struct local_info *local =
1197 container_of(work, struct local_info, tx_timeout_task);
1198 struct net_device *dev = local->dev;
1199 /* reset the card */
1200 do_reset(dev,1);
1201 netif_trans_update(dev); /* prevent tx timeout */
1202 netif_wake_queue(dev);
1203 }
1204
1205 static void
1206 xirc_tx_timeout(struct net_device *dev)
1207 {
1208 struct local_info *lp = netdev_priv(dev);
1209 dev->stats.tx_errors++;
1210 netdev_notice(dev, "transmit timed out\n");
1211 schedule_work(&lp->tx_timeout_task);
1212 }
1213
1214 static netdev_tx_t
1215 do_start_xmit(struct sk_buff *skb, struct net_device *dev)
1216 {
1217 struct local_info *lp = netdev_priv(dev);
1218 unsigned int ioaddr = dev->base_addr;
1219 int okay;
1220 unsigned freespace;
1221 unsigned pktlen = skb->len;
1222
1223 pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n",
1224 skb, dev, pktlen);
1225
1226
1227 /* adjust the packet length to min. required
1228 * and hope that the buffer is large enough
1229 * to provide some random data.
1230 * fixme: For Mohawk we can change this by sending
1231 * a larger packetlen than we actually have; the chip will
1232 * pad this in his buffer with random bytes
1233 */
1234 if (pktlen < ETH_ZLEN)
1235 {
1236 if (skb_padto(skb, ETH_ZLEN))
1237 return NETDEV_TX_OK;
1238 pktlen = ETH_ZLEN;
1239 }
1240
1241 netif_stop_queue(dev);
1242 SelectPage(0);
1243 PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
1244 freespace = GetWord(XIRCREG0_TSO);
1245 okay = freespace & 0x8000;
1246 freespace &= 0x7fff;
1247 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
1248 okay = pktlen +2 < freespace;
1249 pr_debug("%s: avail. tx space=%u%s\n",
1250 dev->name, freespace, okay ? " (okay)":" (not enough)");
1251 if (!okay) { /* not enough space */
1252 return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */
1253 }
1254 /* send the packet */
1255 PutWord(XIRCREG_EDP, (u_short)pktlen);
1256 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
1257 if (pktlen & 1)
1258 PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
1259
1260 if (lp->mohawk)
1261 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
1262
1263 dev_kfree_skb (skb);
1264 dev->stats.tx_bytes += pktlen;
1265 netif_start_queue(dev);
1266 return NETDEV_TX_OK;
1267 }
1268
1269 struct set_address_info {
1270 int reg_nr;
1271 int page_nr;
1272 int mohawk;
1273 unsigned int ioaddr;
1274 };
1275
1276 static void set_address(struct set_address_info *sa_info, char *addr)
1277 {
1278 unsigned int ioaddr = sa_info->ioaddr;
1279 int i;
1280
1281 for (i = 0; i < 6; i++) {
1282 if (sa_info->reg_nr > 15) {
1283 sa_info->reg_nr = 8;
1284 sa_info->page_nr++;
1285 SelectPage(sa_info->page_nr);
1286 }
1287 if (sa_info->mohawk)
1288 PutByte(sa_info->reg_nr++, addr[5 - i]);
1289 else
1290 PutByte(sa_info->reg_nr++, addr[i]);
1291 }
1292 }
1293
1294 /****************
1295 * Set all addresses: This first one is the individual address,
1296 * the next 9 addresses are taken from the multicast list and
1297 * the rest is filled with the individual address.
1298 */
1299 static void set_addresses(struct net_device *dev)
1300 {
1301 unsigned int ioaddr = dev->base_addr;
1302 struct local_info *lp = netdev_priv(dev);
1303 struct netdev_hw_addr *ha;
1304 struct set_address_info sa_info;
1305 int i;
1306
1307 /*
1308 * Setup the info structure so that by first set_address call it will do
1309 * SelectPage with the right page number. Hence these ones here.
1310 */
1311 sa_info.reg_nr = 15 + 1;
1312 sa_info.page_nr = 0x50 - 1;
1313 sa_info.mohawk = lp->mohawk;
1314 sa_info.ioaddr = ioaddr;
1315
1316 set_address(&sa_info, dev->dev_addr);
1317 i = 0;
1318 netdev_for_each_mc_addr(ha, dev) {
1319 if (i++ == 9)
1320 break;
1321 set_address(&sa_info, ha->addr);
1322 }
1323 while (i++ < 9)
1324 set_address(&sa_info, dev->dev_addr);
1325 SelectPage(0);
1326 }
1327
1328 /****************
1329 * Set or clear the multicast filter for this adaptor.
1330 * We can filter up to 9 addresses, if more are requested we set
1331 * multicast promiscuous mode.
1332 */
1333
1334 static void
1335 set_multicast_list(struct net_device *dev)
1336 {
1337 unsigned int ioaddr = dev->base_addr;
1338 unsigned value;
1339
1340 SelectPage(0x42);
1341 value = GetByte(XIRCREG42_SWC1) & 0xC0;
1342
1343 if (dev->flags & IFF_PROMISC) { /* snoop */
1344 PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */
1345 } else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) {
1346 PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */
1347 } else if (!netdev_mc_empty(dev)) {
1348 /* the chip can filter 9 addresses perfectly */
1349 PutByte(XIRCREG42_SWC1, value | 0x01);
1350 SelectPage(0x40);
1351 PutByte(XIRCREG40_CMD0, Offline);
1352 set_addresses(dev);
1353 SelectPage(0x40);
1354 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1355 } else { /* standard usage */
1356 PutByte(XIRCREG42_SWC1, value | 0x00);
1357 }
1358 SelectPage(0);
1359 }
1360
1361 static int
1362 do_config(struct net_device *dev, struct ifmap *map)
1363 {
1364 struct local_info *local = netdev_priv(dev);
1365
1366 pr_debug("do_config(%p)\n", dev);
1367 if (map->port != 255 && map->port != dev->if_port) {
1368 if (map->port > 4)
1369 return -EINVAL;
1370 if (!map->port) {
1371 local->probe_port = 1;
1372 dev->if_port = 1;
1373 } else {
1374 local->probe_port = 0;
1375 dev->if_port = map->port;
1376 }
1377 netdev_info(dev, "switching to %s port\n", if_names[dev->if_port]);
1378 do_reset(dev,1); /* not the fine way :-) */
1379 }
1380 return 0;
1381 }
1382
1383 /****************
1384 * Open the driver
1385 */
1386 static int
1387 do_open(struct net_device *dev)
1388 {
1389 struct local_info *lp = netdev_priv(dev);
1390 struct pcmcia_device *link = lp->p_dev;
1391
1392 dev_dbg(&link->dev, "do_open(%p)\n", dev);
1393
1394 /* Check that the PCMCIA card is still here. */
1395 /* Physical device present signature. */
1396 if (!pcmcia_dev_present(link))
1397 return -ENODEV;
1398
1399 /* okay */
1400 link->open++;
1401
1402 netif_start_queue(dev);
1403 do_reset(dev,1);
1404
1405 return 0;
1406 }
1407
1408 static void netdev_get_drvinfo(struct net_device *dev,
1409 struct ethtool_drvinfo *info)
1410 {
1411 strlcpy(info->driver, "xirc2ps_cs", sizeof(info->driver));
1412 snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx",
1413 dev->base_addr);
1414 }
1415
1416 static const struct ethtool_ops netdev_ethtool_ops = {
1417 .get_drvinfo = netdev_get_drvinfo,
1418 };
1419
1420 static int
1421 do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1422 {
1423 struct local_info *local = netdev_priv(dev);
1424 unsigned int ioaddr = dev->base_addr;
1425 struct mii_ioctl_data *data = if_mii(rq);
1426
1427 pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
1428 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
1429 data->phy_id, data->reg_num, data->val_in, data->val_out);
1430
1431 if (!local->mohawk)
1432 return -EOPNOTSUPP;
1433
1434 switch(cmd) {
1435 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
1436 data->phy_id = 0; /* we have only this address */
1437 /* fall through */
1438 case SIOCGMIIREG: /* Read the specified MII register. */
1439 data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f,
1440 data->reg_num & 0x1f);
1441 break;
1442 case SIOCSMIIREG: /* Write the specified MII register */
1443 mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in,
1444 16);
1445 break;
1446 default:
1447 return -EOPNOTSUPP;
1448 }
1449 return 0;
1450 }
1451
1452 static void
1453 hardreset(struct net_device *dev)
1454 {
1455 struct local_info *local = netdev_priv(dev);
1456 unsigned int ioaddr = dev->base_addr;
1457
1458 SelectPage(4);
1459 udelay(1);
1460 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1461 msleep(40); /* wait 40 msec */
1462 if (local->mohawk)
1463 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
1464 else
1465 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
1466 msleep(20); /* wait 20 msec */
1467 }
1468
1469 static void
1470 do_reset(struct net_device *dev, int full)
1471 {
1472 struct local_info *local = netdev_priv(dev);
1473 unsigned int ioaddr = dev->base_addr;
1474 unsigned value;
1475
1476 pr_debug("%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
1477
1478 hardreset(dev);
1479 PutByte(XIRCREG_CR, SoftReset); /* set */
1480 msleep(20); /* wait 20 msec */
1481 PutByte(XIRCREG_CR, 0); /* clear */
1482 msleep(40); /* wait 40 msec */
1483 if (local->mohawk) {
1484 SelectPage(4);
1485 /* set pin GP1 and GP2 to output (0x0c)
1486 * set GP1 to low to power up the ML6692 (0x00)
1487 * set GP2 to high to power up the 10Mhz chip (0x02)
1488 */
1489 PutByte(XIRCREG4_GPR0, 0x0e);
1490 }
1491
1492 /* give the circuits some time to power up */
1493 msleep(500); /* about 500ms */
1494
1495 local->last_ptr_value = 0;
1496 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
1497 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
1498
1499 if (local->probe_port) {
1500 if (!local->mohawk) {
1501 SelectPage(4);
1502 PutByte(XIRCREG4_GPR0, 4);
1503 local->probe_port = 0;
1504 }
1505 } else if (dev->if_port == 2) { /* enable 10Base2 */
1506 SelectPage(0x42);
1507 PutByte(XIRCREG42_SWC1, 0xC0);
1508 } else { /* enable 10BaseT */
1509 SelectPage(0x42);
1510 PutByte(XIRCREG42_SWC1, 0x80);
1511 }
1512 msleep(40); /* wait 40 msec to let it complete */
1513
1514 #if 0
1515 {
1516 SelectPage(0);
1517 value = GetByte(XIRCREG_ESR); /* read the ESR */
1518 pr_debug("%s: ESR is: %#02x\n", dev->name, value);
1519 }
1520 #endif
1521
1522 /* setup the ECR */
1523 SelectPage(1);
1524 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
1525 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
1526 value = GetByte(XIRCREG1_ECR);
1527 #if 0
1528 if (local->mohawk)
1529 value |= DisableLinkPulse;
1530 PutByte(XIRCREG1_ECR, value);
1531 #endif
1532 pr_debug("%s: ECR is: %#02x\n", dev->name, value);
1533
1534 SelectPage(0x42);
1535 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
1536
1537 if (local->silicon != 1) {
1538 /* set the local memory dividing line.
1539 * The comments in the sample code say that this is only
1540 * settable with the scipper version 2 which is revision 0.
1541 * Always for CE3 cards
1542 */
1543 SelectPage(2);
1544 PutWord(XIRCREG2_RBS, 0x2000);
1545 }
1546
1547 if (full)
1548 set_addresses(dev);
1549
1550 /* Hardware workaround:
1551 * The receive byte pointer after reset is off by 1 so we need
1552 * to move the offset pointer back to 0.
1553 */
1554 SelectPage(0);
1555 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
1556
1557 /* setup MAC IMRs and clear status registers */
1558 SelectPage(0x40); /* Bit 7 ... bit 0 */
1559 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
1560 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1561 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
1562 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
1563 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1564 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
1565
1566 if (full && local->mohawk && init_mii(dev)) {
1567 if (dev->if_port == 4 || local->dingo || local->new_mii) {
1568 netdev_info(dev, "MII selected\n");
1569 SelectPage(2);
1570 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
1571 msleep(20);
1572 } else {
1573 netdev_info(dev, "MII detected; using 10mbs\n");
1574 SelectPage(0x42);
1575 if (dev->if_port == 2) /* enable 10Base2 */
1576 PutByte(XIRCREG42_SWC1, 0xC0);
1577 else /* enable 10BaseT */
1578 PutByte(XIRCREG42_SWC1, 0x80);
1579 msleep(40); /* wait 40 msec to let it complete */
1580 }
1581 if (full_duplex)
1582 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
1583 } else { /* No MII */
1584 SelectPage(0);
1585 value = GetByte(XIRCREG_ESR); /* read the ESR */
1586 dev->if_port = (value & MediaSelect) ? 1 : 2;
1587 }
1588
1589 /* configure the LEDs */
1590 SelectPage(2);
1591 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
1592 PutByte(XIRCREG2_LED, 0x3b);
1593 else /* Coax: Not-Collision and Activity */
1594 PutByte(XIRCREG2_LED, 0x3a);
1595
1596 if (local->dingo)
1597 PutByte(0x0b, 0x04); /* 100 Mbit LED */
1598
1599 /* enable receiver and put the mac online */
1600 if (full) {
1601 set_multicast_list(dev);
1602 SelectPage(0x40);
1603 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1604 }
1605
1606 /* setup Ethernet IMR and enable interrupts */
1607 SelectPage(1);
1608 PutByte(XIRCREG1_IMR0, 0xff);
1609 udelay(1);
1610 SelectPage(0);
1611 PutByte(XIRCREG_CR, EnableIntr);
1612 if (local->modem && !local->dingo) { /* do some magic */
1613 if (!(GetByte(0x10) & 0x01))
1614 PutByte(0x10, 0x11); /* unmask master-int bit */
1615 }
1616
1617 if (full)
1618 netdev_info(dev, "media %s, silicon revision %d\n",
1619 if_names[dev->if_port], local->silicon);
1620 /* We should switch back to page 0 to avoid a bug in revision 0
1621 * where regs with offset below 8 can't be read after an access
1622 * to the MAC registers */
1623 SelectPage(0);
1624 }
1625
1626 /****************
1627 * Initialize the Media-Independent-Interface
1628 * Returns: True if we have a good MII
1629 */
1630 static int
1631 init_mii(struct net_device *dev)
1632 {
1633 struct local_info *local = netdev_priv(dev);
1634 unsigned int ioaddr = dev->base_addr;
1635 unsigned control, status, linkpartner;
1636 int i;
1637
1638 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
1639 dev->if_port = if_port;
1640 local->probe_port = 0;
1641 return 1;
1642 }
1643
1644 status = mii_rd(ioaddr, 0, 1);
1645 if ((status & 0xff00) != 0x7800)
1646 return 0; /* No MII */
1647
1648 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
1649
1650 if (local->probe_port)
1651 control = 0x1000; /* auto neg */
1652 else if (dev->if_port == 4)
1653 control = 0x2000; /* no auto neg, 100mbs mode */
1654 else
1655 control = 0x0000; /* no auto neg, 10mbs mode */
1656 mii_wr(ioaddr, 0, 0, control, 16);
1657 udelay(100);
1658 control = mii_rd(ioaddr, 0, 0);
1659
1660 if (control & 0x0400) {
1661 netdev_notice(dev, "can't take PHY out of isolation mode\n");
1662 local->probe_port = 0;
1663 return 0;
1664 }
1665
1666 if (local->probe_port) {
1667 /* according to the DP83840A specs the auto negotiation process
1668 * may take up to 3.5 sec, so we use this also for our ML6692
1669 * Fixme: Better to use a timer here!
1670 */
1671 for (i=0; i < 35; i++) {
1672 msleep(100); /* wait 100 msec */
1673 status = mii_rd(ioaddr, 0, 1);
1674 if ((status & 0x0020) && (status & 0x0004))
1675 break;
1676 }
1677
1678 if (!(status & 0x0020)) {
1679 netdev_info(dev, "autonegotiation failed; using 10mbs\n");
1680 if (!local->new_mii) {
1681 control = 0x0000;
1682 mii_wr(ioaddr, 0, 0, control, 16);
1683 udelay(100);
1684 SelectPage(0);
1685 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
1686 }
1687 } else {
1688 linkpartner = mii_rd(ioaddr, 0, 5);
1689 netdev_info(dev, "MII link partner: %04x\n", linkpartner);
1690 if (linkpartner & 0x0080) {
1691 dev->if_port = 4;
1692 } else
1693 dev->if_port = 1;
1694 }
1695 }
1696
1697 return 1;
1698 }
1699
1700 static void
1701 do_powerdown(struct net_device *dev)
1702 {
1703
1704 unsigned int ioaddr = dev->base_addr;
1705
1706 pr_debug("do_powerdown(%p)\n", dev);
1707
1708 SelectPage(4);
1709 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1710 SelectPage(0);
1711 }
1712
1713 static int
1714 do_stop(struct net_device *dev)
1715 {
1716 unsigned int ioaddr = dev->base_addr;
1717 struct local_info *lp = netdev_priv(dev);
1718 struct pcmcia_device *link = lp->p_dev;
1719
1720 dev_dbg(&link->dev, "do_stop(%p)\n", dev);
1721
1722 if (!link)
1723 return -ENODEV;
1724
1725 netif_stop_queue(dev);
1726
1727 SelectPage(0);
1728 PutByte(XIRCREG_CR, 0); /* disable interrupts */
1729 SelectPage(0x01);
1730 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
1731 SelectPage(4);
1732 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1733 SelectPage(0);
1734
1735 link->open--;
1736 return 0;
1737 }
1738
1739 static const struct pcmcia_device_id xirc2ps_ids[] = {
1740 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a),
1741 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a),
1742 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),
1743 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),
1744 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),
1745 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),
1746 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),
1747 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),
1748 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a),
1749 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2),
1750 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37),
1751 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073),
1752 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3),
1753 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609),
1754 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46),
1755 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2),
1756 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769),
1757 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db),
1758 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf),
1759 /* also matches CFE-10 cards! */
1760 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */
1761 PCMCIA_DEVICE_NULL,
1762 };
1763 MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids);
1764
1765
1766 static struct pcmcia_driver xirc2ps_cs_driver = {
1767 .owner = THIS_MODULE,
1768 .name = "xirc2ps_cs",
1769 .probe = xirc2ps_probe,
1770 .remove = xirc2ps_detach,
1771 .id_table = xirc2ps_ids,
1772 .suspend = xirc2ps_suspend,
1773 .resume = xirc2ps_resume,
1774 };
1775 module_pcmcia_driver(xirc2ps_cs_driver);
1776
1777 #ifndef MODULE
1778 static int __init setup_xirc2ps_cs(char *str)
1779 {
1780 /* if_port, full_duplex, do_sound, lockup_hack
1781 */
1782 int ints[10] = { -1 };
1783
1784 str = get_options(str, ARRAY_SIZE(ints), ints);
1785
1786 #define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
1787 MAYBE_SET(if_port, 3);
1788 MAYBE_SET(full_duplex, 4);
1789 MAYBE_SET(do_sound, 5);
1790 MAYBE_SET(lockup_hack, 6);
1791 #undef MAYBE_SET
1792
1793 return 1;
1794 }
1795
1796 __setup("xirc2ps_cs=", setup_xirc2ps_cs);
1797 #endif
Linux with added FPC-III support