?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
pvrusb2: reduce stack usage pvr2_eeprom_analyze()
[linux/fpc-iii.git] / drivers / net / ethernet / xircom / xirc2ps_cs.c
blobddced28e824799679332c36bbcb7b1c26e83bbec
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 <asm/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_change_mtu = eth_change_mtu,
470 .ndo_set_mac_address = eth_mac_addr,
471 .ndo_validate_addr = eth_validate_addr,
472 };
473
474 static int
475 xirc2ps_probe(struct pcmcia_device *link)
476 {
477 struct net_device *dev;
478 struct local_info *local;
479
480 dev_dbg(&link->dev, "attach()\n");
481
482 /* Allocate the device structure */
483 dev = alloc_etherdev(sizeof(struct local_info));
484 if (!dev)
485 return -ENOMEM;
486 local = netdev_priv(dev);
487 local->dev = dev;
488 local->p_dev = link;
489 link->priv = dev;
490
491 /* General socket configuration */
492 link->config_index = 1;
493
494 /* Fill in card specific entries */
495 dev->netdev_ops = &netdev_ops;
496 dev->ethtool_ops = &netdev_ethtool_ops;
497 dev->watchdog_timeo = TX_TIMEOUT;
498 INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task);
499
500 return xirc2ps_config(link);
501 } /* xirc2ps_attach */
502
503 static void
504 xirc2ps_detach(struct pcmcia_device *link)
505 {
506 struct net_device *dev = link->priv;
507
508 dev_dbg(&link->dev, "detach\n");
509
510 unregister_netdev(dev);
511
512 xirc2ps_release(link);
513
514 free_netdev(dev);
515 } /* xirc2ps_detach */
516
517 /****************
518 * Detect the type of the card. s is the buffer with the data of tuple 0x20
519 * Returns: 0 := not supported
520 * mediaid=11 and prodid=47
521 * Media-Id bits:
522 * Ethernet 0x01
523 * Tokenring 0x02
524 * Arcnet 0x04
525 * Wireless 0x08
526 * Modem 0x10
527 * GSM only 0x20
528 * Prod-Id bits:
529 * Pocket 0x10
530 * External 0x20
531 * Creditcard 0x40
532 * Cardbus 0x80
533 *
534 */
535 static int
536 set_card_type(struct pcmcia_device *link)
537 {
538 struct net_device *dev = link->priv;
539 struct local_info *local = netdev_priv(dev);
540 u8 *buf;
541 unsigned int cisrev, mediaid, prodid;
542 size_t len;
543
544 len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf);
545 if (len < 5) {
546 dev_err(&link->dev, "invalid CIS -- sorry\n");
547 return 0;
548 }
549
550 cisrev = buf[2];
551 mediaid = buf[3];
552 prodid = buf[4];
553
554 dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n",
555 cisrev, mediaid, prodid);
556
557 local->mohawk = 0;
558 local->dingo = 0;
559 local->modem = 0;
560 local->card_type = XIR_UNKNOWN;
561 if (!(prodid & 0x40)) {
562 pr_notice("Oops: Not a creditcard\n");
563 return 0;
564 }
565 if (!(mediaid & 0x01)) {
566 pr_notice("Not an Ethernet card\n");
567 return 0;
568 }
569 if (mediaid & 0x10) {
570 local->modem = 1;
571 switch(prodid & 15) {
572 case 1: local->card_type = XIR_CEM ; break;
573 case 2: local->card_type = XIR_CEM2 ; break;
574 case 3: local->card_type = XIR_CEM3 ; break;
575 case 4: local->card_type = XIR_CEM33 ; break;
576 case 5: local->card_type = XIR_CEM56M;
577 local->mohawk = 1;
578 break;
579 case 6:
580 case 7: /* 7 is the RealPort 10/56 */
581 local->card_type = XIR_CEM56 ;
582 local->mohawk = 1;
583 local->dingo = 1;
584 break;
585 }
586 } else {
587 switch(prodid & 15) {
588 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
589 break;
590 case 2: local->card_type = XIR_CE2; break;
591 case 3: local->card_type = XIR_CE3;
592 local->mohawk = 1;
593 break;
594 }
595 }
596 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
597 pr_notice("Sorry, this is an old CE card\n");
598 return 0;
599 }
600 if (local->card_type == XIR_UNKNOWN)
601 pr_notice("unknown card (mediaid=%02x prodid=%02x)\n", mediaid, prodid);
602
603 return 1;
604 }
605
606 /****************
607 * There are some CE2 cards out which claim to be a CE card.
608 * This function looks for a "CE2" in the 3rd version field.
609 * Returns: true if this is a CE2
610 */
611 static int
612 has_ce2_string(struct pcmcia_device * p_dev)
613 {
614 if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2"))
615 return 1;
616 return 0;
617 }
618
619 static int
620 xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data)
621 {
622 unsigned int ioaddr;
623
624 if ((p_dev->resource[0]->start & 0xf) == 8)
625 return -ENODEV;
626
627 p_dev->resource[0]->end = 16;
628 p_dev->resource[1]->end = 8;
629 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
630 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
631 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
632 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
633 p_dev->io_lines = 10;
634
635 p_dev->resource[1]->start = p_dev->resource[0]->start;
636 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
637 p_dev->resource[0]->start = ioaddr;
638 if (!pcmcia_request_io(p_dev))
639 return 0;
640 }
641 return -ENODEV;
642 }
643
644 static int
645 xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data)
646 {
647 int *pass = priv_data;
648 resource_size_t tmp = p_dev->resource[1]->start;
649
650 tmp += (*pass ? (p_dev->config_index & 0x20 ? -24 : 8)
651 : (p_dev->config_index & 0x20 ? 8 : -24));
652
653 if ((p_dev->resource[0]->start & 0xf) == 8)
654 return -ENODEV;
655
656 p_dev->resource[0]->end = 18;
657 p_dev->resource[1]->end = 8;
658 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
659 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
660 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
661 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
662 p_dev->io_lines = 10;
663
664 p_dev->resource[1]->start = p_dev->resource[0]->start;
665 p_dev->resource[0]->start = tmp;
666 return pcmcia_request_io(p_dev);
667 }
668
669
670 static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev,
671 tuple_t *tuple,
672 void *priv)
673 {
674 struct net_device *dev = priv;
675 int i;
676
677 if (tuple->TupleDataLen != 13)
678 return -EINVAL;
679 if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) ||
680 (tuple->TupleData[2] != 6))
681 return -EINVAL;
682 /* another try (James Lehmer's CE2 version 4.1)*/
683 for (i = 2; i < 6; i++)
684 dev->dev_addr[i] = tuple->TupleData[i+2];
685 return 0;
686 };
687
688
689 static int
690 xirc2ps_config(struct pcmcia_device * link)
691 {
692 struct net_device *dev = link->priv;
693 struct local_info *local = netdev_priv(dev);
694 unsigned int ioaddr;
695 int err;
696 u8 *buf;
697 size_t len;
698
699 local->dingo_ccr = NULL;
700
701 dev_dbg(&link->dev, "config\n");
702
703 /* Is this a valid card */
704 if (link->has_manf_id == 0) {
705 pr_notice("manfid not found in CIS\n");
706 goto failure;
707 }
708
709 switch (link->manf_id) {
710 case MANFID_XIRCOM:
711 local->manf_str = "Xircom";
712 break;
713 case MANFID_ACCTON:
714 local->manf_str = "Accton";
715 break;
716 case MANFID_COMPAQ:
717 case MANFID_COMPAQ2:
718 local->manf_str = "Compaq";
719 break;
720 case MANFID_INTEL:
721 local->manf_str = "Intel";
722 break;
723 case MANFID_TOSHIBA:
724 local->manf_str = "Toshiba";
725 break;
726 default:
727 pr_notice("Unknown Card Manufacturer ID: 0x%04x\n",
728 (unsigned)link->manf_id);
729 goto failure;
730 }
731 dev_dbg(&link->dev, "found %s card\n", local->manf_str);
732
733 if (!set_card_type(link)) {
734 pr_notice("this card is not supported\n");
735 goto failure;
736 }
737
738 /* get the ethernet address from the CIS */
739 err = pcmcia_get_mac_from_cis(link, dev);
740
741 /* not found: try to get the node-id from tuple 0x89 */
742 if (err) {
743 len = pcmcia_get_tuple(link, 0x89, &buf);
744 /* data layout looks like tuple 0x22 */
745 if (buf && len == 8) {
746 if (*buf == CISTPL_FUNCE_LAN_NODE_ID) {
747 int i;
748 for (i = 2; i < 6; i++)
749 dev->dev_addr[i] = buf[i+2];
750 } else
751 err = -1;
752 }
753 kfree(buf);
754 }
755
756 if (err)
757 err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev);
758
759 if (err) {
760 pr_notice("node-id not found in CIS\n");
761 goto failure;
762 }
763
764 if (local->modem) {
765 int pass;
766 link->config_flags |= CONF_AUTO_SET_IO;
767
768 if (local->dingo) {
769 /* Take the Modem IO port from the CIS and scan for a free
770 * Ethernet port */
771 if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL))
772 goto port_found;
773 } else {
774 /* We do 2 passes here: The first one uses the regular mapping and
775 * the second tries again, thereby considering that the 32 ports are
776 * mirrored every 32 bytes. Actually we use a mirrored port for
777 * the Mako if (on the first pass) the COR bit 5 is set.
778 */
779 for (pass=0; pass < 2; pass++)
780 if (!pcmcia_loop_config(link, xirc2ps_config_check,
781 &pass))
782 goto port_found;
783 /* if special option:
784 * try to configure as Ethernet only.
785 * .... */
786 }
787 pr_notice("no ports available\n");
788 } else {
789 link->io_lines = 10;
790 link->resource[0]->end = 16;
791 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
792 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
793 link->resource[0]->start = ioaddr;
794 if (!(err = pcmcia_request_io(link)))
795 goto port_found;
796 }
797 link->resource[0]->start = 0; /* let CS decide */
798 if ((err = pcmcia_request_io(link)))
799 goto config_error;
800 }
801 port_found:
802 if (err)
803 goto config_error;
804
805 /****************
806 * Now allocate an interrupt line. Note that this does not
807 * actually assign a handler to the interrupt.
808 */
809 if ((err=pcmcia_request_irq(link, xirc2ps_interrupt)))
810 goto config_error;
811
812 link->config_flags |= CONF_ENABLE_IRQ;
813 if (do_sound)
814 link->config_flags |= CONF_ENABLE_SPKR;
815
816 if ((err = pcmcia_enable_device(link)))
817 goto config_error;
818
819 if (local->dingo) {
820 /* Reset the modem's BAR to the correct value
821 * This is necessary because in the RequestConfiguration call,
822 * the base address of the ethernet port (BasePort1) is written
823 * to the BAR registers of the modem.
824 */
825 err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, (u8)
826 link->resource[1]->start & 0xff);
827 if (err)
828 goto config_error;
829
830 err = pcmcia_write_config_byte(link, CISREG_IOBASE_1,
831 (link->resource[1]->start >> 8) & 0xff);
832 if (err)
833 goto config_error;
834
835 /* There is no config entry for the Ethernet part which
836 * is at 0x0800. So we allocate a window into the attribute
837 * memory and write direct to the CIS registers
838 */
839 link->resource[2]->flags = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM |
840 WIN_ENABLE;
841 link->resource[2]->start = link->resource[2]->end = 0;
842 if ((err = pcmcia_request_window(link, link->resource[2], 0)))
843 goto config_error;
844
845 local->dingo_ccr = ioremap(link->resource[2]->start, 0x1000) + 0x0800;
846 if ((err = pcmcia_map_mem_page(link, link->resource[2], 0)))
847 goto config_error;
848
849 /* Setup the CCRs; there are no infos in the CIS about the Ethernet
850 * part.
851 */
852 writeb(0x47, local->dingo_ccr + CISREG_COR);
853 ioaddr = link->resource[0]->start;
854 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
855 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
856
857 #if 0
858 {
859 u_char tmp;
860 pr_info("ECOR:");
861 for (i=0; i < 7; i++) {
862 tmp = readb(local->dingo_ccr + i*2);
863 pr_cont(" %02x", tmp);
864 }
865 pr_cont("\n");
866 pr_info("DCOR:");
867 for (i=0; i < 4; i++) {
868 tmp = readb(local->dingo_ccr + 0x20 + i*2);
869 pr_cont(" %02x", tmp);
870 }
871 pr_cont("\n");
872 pr_info("SCOR:");
873 for (i=0; i < 10; i++) {
874 tmp = readb(local->dingo_ccr + 0x40 + i*2);
875 pr_cont(" %02x", tmp);
876 }
877 pr_cont("\n");
878 }
879 #endif
880
881 writeb(0x01, local->dingo_ccr + 0x20);
882 writeb(0x0c, local->dingo_ccr + 0x22);
883 writeb(0x00, local->dingo_ccr + 0x24);
884 writeb(0x00, local->dingo_ccr + 0x26);
885 writeb(0x00, local->dingo_ccr + 0x28);
886 }
887
888 /* The if_port symbol can be set when the module is loaded */
889 local->probe_port=0;
890 if (!if_port) {
891 local->probe_port = dev->if_port = 1;
892 } else if ((if_port >= 1 && if_port <= 2) ||
893 (local->mohawk && if_port==4))
894 dev->if_port = if_port;
895 else
896 pr_notice("invalid if_port requested\n");
897
898 /* we can now register the device with the net subsystem */
899 dev->irq = link->irq;
900 dev->base_addr = link->resource[0]->start;
901
902 if (local->dingo)
903 do_reset(dev, 1); /* a kludge to make the cem56 work */
904
905 SET_NETDEV_DEV(dev, &link->dev);
906
907 if ((err=register_netdev(dev))) {
908 pr_notice("register_netdev() failed\n");
909 goto config_error;
910 }
911
912 /* give some infos about the hardware */
913 netdev_info(dev, "%s: port %#3lx, irq %d, hwaddr %pM\n",
914 local->manf_str, (u_long)dev->base_addr, (int)dev->irq,
915 dev->dev_addr);
916
917 return 0;
918
919 config_error:
920 xirc2ps_release(link);
921 return -ENODEV;
922
923 failure:
924 return -ENODEV;
925 } /* xirc2ps_config */
926
927 static void
928 xirc2ps_release(struct pcmcia_device *link)
929 {
930 dev_dbg(&link->dev, "release\n");
931
932 if (link->resource[2]->end) {
933 struct net_device *dev = link->priv;
934 struct local_info *local = netdev_priv(dev);
935 if (local->dingo)
936 iounmap(local->dingo_ccr - 0x0800);
937 }
938 pcmcia_disable_device(link);
939 } /* xirc2ps_release */
940
941 /*====================================================================*/
942
943
944 static int xirc2ps_suspend(struct pcmcia_device *link)
945 {
946 struct net_device *dev = link->priv;
947
948 if (link->open) {
949 netif_device_detach(dev);
950 do_powerdown(dev);
951 }
952
953 return 0;
954 }
955
956 static int xirc2ps_resume(struct pcmcia_device *link)
957 {
958 struct net_device *dev = link->priv;
959
960 if (link->open) {
961 do_reset(dev,1);
962 netif_device_attach(dev);
963 }
964
965 return 0;
966 }
967
968
969 /*====================================================================*/
970
971 /****************
972 * This is the Interrupt service route.
973 */
974 static irqreturn_t
975 xirc2ps_interrupt(int irq, void *dev_id)
976 {
977 struct net_device *dev = (struct net_device *)dev_id;
978 struct local_info *lp = netdev_priv(dev);
979 unsigned int ioaddr;
980 u_char saved_page;
981 unsigned bytes_rcvd;
982 unsigned int_status, eth_status, rx_status, tx_status;
983 unsigned rsr, pktlen;
984 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
985 * is this something to worry about?
986 * -- on a laptop?
987 */
988
989 if (!netif_device_present(dev))
990 return IRQ_HANDLED;
991
992 ioaddr = dev->base_addr;
993 if (lp->mohawk) { /* must disable the interrupt */
994 PutByte(XIRCREG_CR, 0);
995 }
996
997 pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
998
999 saved_page = GetByte(XIRCREG_PR);
1000 /* Read the ISR to see whats the cause for the interrupt.
1001 * This also clears the interrupt flags on CE2 cards
1002 */
1003 int_status = GetByte(XIRCREG_ISR);
1004 bytes_rcvd = 0;
1005 loop_entry:
1006 if (int_status == 0xff) { /* card may be ejected */
1007 pr_debug("%s: interrupt %d for dead card\n", dev->name, irq);
1008 goto leave;
1009 }
1010 eth_status = GetByte(XIRCREG_ESR);
1011
1012 SelectPage(0x40);
1013 rx_status = GetByte(XIRCREG40_RXST0);
1014 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
1015 tx_status = GetByte(XIRCREG40_TXST0);
1016 tx_status |= GetByte(XIRCREG40_TXST1) << 8;
1017 PutByte(XIRCREG40_TXST0, 0);
1018 PutByte(XIRCREG40_TXST1, 0);
1019
1020 pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
1021 dev->name, int_status, eth_status, rx_status, tx_status);
1022
1023 /***** receive section ******/
1024 SelectPage(0);
1025 while (eth_status & FullPktRcvd) {
1026 rsr = GetByte(XIRCREG0_RSR);
1027 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
1028 /* too many bytes received during this int, drop the rest of the
1029 * packets */
1030 dev->stats.rx_dropped++;
1031 pr_debug("%s: RX drop, too much done\n", dev->name);
1032 } else if (rsr & PktRxOk) {
1033 struct sk_buff *skb;
1034
1035 pktlen = GetWord(XIRCREG0_RBC);
1036 bytes_rcvd += pktlen;
1037
1038 pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen);
1039
1040 /* 1 extra so we can use insw */
1041 skb = netdev_alloc_skb(dev, pktlen + 3);
1042 if (!skb) {
1043 dev->stats.rx_dropped++;
1044 } else { /* okay get the packet */
1045 skb_reserve(skb, 2);
1046 if (lp->silicon == 0 ) { /* work around a hardware bug */
1047 unsigned rhsa; /* receive start address */
1048
1049 SelectPage(5);
1050 rhsa = GetWord(XIRCREG5_RHSA0);
1051 SelectPage(0);
1052 rhsa += 3; /* skip control infos */
1053 if (rhsa >= 0x8000)
1054 rhsa = 0;
1055 if (rhsa + pktlen > 0x8000) {
1056 unsigned i;
1057 u_char *buf = skb_put(skb, pktlen);
1058 for (i=0; i < pktlen ; i++, rhsa++) {
1059 buf[i] = GetByte(XIRCREG_EDP);
1060 if (rhsa == 0x8000) {
1061 rhsa = 0;
1062 i--;
1063 }
1064 }
1065 } else {
1066 insw(ioaddr+XIRCREG_EDP,
1067 skb_put(skb, pktlen), (pktlen+1)>>1);
1068 }
1069 }
1070 #if 0
1071 else if (lp->mohawk) {
1072 /* To use this 32 bit access we should use
1073 * a manual optimized loop
1074 * Also the words are swapped, we can get more
1075 * performance by using 32 bit access and swapping
1076 * the words in a register. Will need this for cardbus
1077 *
1078 * Note: don't forget to change the ALLOC_SKB to .. +3
1079 */
1080 unsigned i;
1081 u_long *p = skb_put(skb, pktlen);
1082 register u_long a;
1083 unsigned int edpreg = ioaddr+XIRCREG_EDP-2;
1084 for (i=0; i < len ; i += 4, p++) {
1085 a = inl(edpreg);
1086 __asm__("rorl $16,%0\n\t"
1087 :"=q" (a)
1088 : "0" (a));
1089 *p = a;
1090 }
1091 }
1092 #endif
1093 else {
1094 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
1095 (pktlen+1)>>1);
1096 }
1097 skb->protocol = eth_type_trans(skb, dev);
1098 netif_rx(skb);
1099 dev->stats.rx_packets++;
1100 dev->stats.rx_bytes += pktlen;
1101 if (!(rsr & PhyPkt))
1102 dev->stats.multicast++;
1103 }
1104 } else { /* bad packet */
1105 pr_debug("rsr=%#02x\n", rsr);
1106 }
1107 if (rsr & PktTooLong) {
1108 dev->stats.rx_frame_errors++;
1109 pr_debug("%s: Packet too long\n", dev->name);
1110 }
1111 if (rsr & CRCErr) {
1112 dev->stats.rx_crc_errors++;
1113 pr_debug("%s: CRC error\n", dev->name);
1114 }
1115 if (rsr & AlignErr) {
1116 dev->stats.rx_fifo_errors++; /* okay ? */
1117 pr_debug("%s: Alignment error\n", dev->name);
1118 }
1119
1120 /* clear the received/dropped/error packet */
1121 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
1122
1123 /* get the new ethernet status */
1124 eth_status = GetByte(XIRCREG_ESR);
1125 }
1126 if (rx_status & 0x10) { /* Receive overrun */
1127 dev->stats.rx_over_errors++;
1128 PutByte(XIRCREG_CR, ClearRxOvrun);
1129 pr_debug("receive overrun cleared\n");
1130 }
1131
1132 /***** transmit section ******/
1133 if (int_status & PktTxed) {
1134 unsigned n, nn;
1135
1136 n = lp->last_ptr_value;
1137 nn = GetByte(XIRCREG0_PTR);
1138 lp->last_ptr_value = nn;
1139 if (nn < n) /* rollover */
1140 dev->stats.tx_packets += 256 - n;
1141 else if (n == nn) { /* happens sometimes - don't know why */
1142 pr_debug("PTR not changed?\n");
1143 } else
1144 dev->stats.tx_packets += lp->last_ptr_value - n;
1145 netif_wake_queue(dev);
1146 }
1147 if (tx_status & 0x0002) { /* Excessive collisions */
1148 pr_debug("tx restarted due to excessive collisions\n");
1149 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
1150 }
1151 if (tx_status & 0x0040)
1152 dev->stats.tx_aborted_errors++;
1153
1154 /* recalculate our work chunk so that we limit the duration of this
1155 * ISR to about 1/10 of a second.
1156 * Calculate only if we received a reasonable amount of bytes.
1157 */
1158 if (bytes_rcvd > 1000) {
1159 u_long duration = jiffies - start_ticks;
1160
1161 if (duration >= HZ/10) { /* if more than about 1/10 second */
1162 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
1163 if (maxrx_bytes < 2000)
1164 maxrx_bytes = 2000;
1165 else if (maxrx_bytes > 22000)
1166 maxrx_bytes = 22000;
1167 pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n",
1168 maxrx_bytes, bytes_rcvd, duration);
1169 } else if (!duration && maxrx_bytes < 22000) {
1170 /* now much faster */
1171 maxrx_bytes += 2000;
1172 if (maxrx_bytes > 22000)
1173 maxrx_bytes = 22000;
1174 pr_debug("set maxrx=%u\n", maxrx_bytes);
1175 }
1176 }
1177
1178 leave:
1179 if (lockup_hack) {
1180 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
1181 goto loop_entry;
1182 }
1183 SelectPage(saved_page);
1184 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
1185 /* Instead of dropping packets during a receive, we could
1186 * force an interrupt with this command:
1187 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
1188 */
1189 return IRQ_HANDLED;
1190 } /* xirc2ps_interrupt */
1191
1192 /*====================================================================*/
1193
1194 static void
1195 xirc2ps_tx_timeout_task(struct work_struct *work)
1196 {
1197 struct local_info *local =
1198 container_of(work, struct local_info, tx_timeout_task);
1199 struct net_device *dev = local->dev;
1200 /* reset the card */
1201 do_reset(dev,1);
1202 netif_trans_update(dev); /* prevent tx timeout */
1203 netif_wake_queue(dev);
1204 }
1205
1206 static void
1207 xirc_tx_timeout(struct net_device *dev)
1208 {
1209 struct local_info *lp = netdev_priv(dev);
1210 dev->stats.tx_errors++;
1211 netdev_notice(dev, "transmit timed out\n");
1212 schedule_work(&lp->tx_timeout_task);
1213 }
1214
1215 static netdev_tx_t
1216 do_start_xmit(struct sk_buff *skb, struct net_device *dev)
1217 {
1218 struct local_info *lp = netdev_priv(dev);
1219 unsigned int ioaddr = dev->base_addr;
1220 int okay;
1221 unsigned freespace;
1222 unsigned pktlen = skb->len;
1223
1224 pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n",
1225 skb, dev, pktlen);
1226
1227
1228 /* adjust the packet length to min. required
1229 * and hope that the buffer is large enough
1230 * to provide some random data.
1231 * fixme: For Mohawk we can change this by sending
1232 * a larger packetlen than we actually have; the chip will
1233 * pad this in his buffer with random bytes
1234 */
1235 if (pktlen < ETH_ZLEN)
1236 {
1237 if (skb_padto(skb, ETH_ZLEN))
1238 return NETDEV_TX_OK;
1239 pktlen = ETH_ZLEN;
1240 }
1241
1242 netif_stop_queue(dev);
1243 SelectPage(0);
1244 PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
1245 freespace = GetWord(XIRCREG0_TSO);
1246 okay = freespace & 0x8000;
1247 freespace &= 0x7fff;
1248 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
1249 okay = pktlen +2 < freespace;
1250 pr_debug("%s: avail. tx space=%u%s\n",
1251 dev->name, freespace, okay ? " (okay)":" (not enough)");
1252 if (!okay) { /* not enough space */
1253 return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */
1254 }
1255 /* send the packet */
1256 PutWord(XIRCREG_EDP, (u_short)pktlen);
1257 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
1258 if (pktlen & 1)
1259 PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
1260
1261 if (lp->mohawk)
1262 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
1263
1264 dev_kfree_skb (skb);
1265 dev->stats.tx_bytes += pktlen;
1266 netif_start_queue(dev);
1267 return NETDEV_TX_OK;
1268 }
1269
1270 struct set_address_info {
1271 int reg_nr;
1272 int page_nr;
1273 int mohawk;
1274 unsigned int ioaddr;
1275 };
1276
1277 static void set_address(struct set_address_info *sa_info, char *addr)
1278 {
1279 unsigned int ioaddr = sa_info->ioaddr;
1280 int i;
1281
1282 for (i = 0; i < 6; i++) {
1283 if (sa_info->reg_nr > 15) {
1284 sa_info->reg_nr = 8;
1285 sa_info->page_nr++;
1286 SelectPage(sa_info->page_nr);
1287 }
1288 if (sa_info->mohawk)
1289 PutByte(sa_info->reg_nr++, addr[5 - i]);
1290 else
1291 PutByte(sa_info->reg_nr++, addr[i]);
1292 }
1293 }
1294
1295 /****************
1296 * Set all addresses: This first one is the individual address,
1297 * the next 9 addresses are taken from the multicast list and
1298 * the rest is filled with the individual address.
1299 */
1300 static void set_addresses(struct net_device *dev)
1301 {
1302 unsigned int ioaddr = dev->base_addr;
1303 struct local_info *lp = netdev_priv(dev);
1304 struct netdev_hw_addr *ha;
1305 struct set_address_info sa_info;
1306 int i;
1307
1308 /*
1309 * Setup the info structure so that by first set_address call it will do
1310 * SelectPage with the right page number. Hence these ones here.
1311 */
1312 sa_info.reg_nr = 15 + 1;
1313 sa_info.page_nr = 0x50 - 1;
1314 sa_info.mohawk = lp->mohawk;
1315 sa_info.ioaddr = ioaddr;
1316
1317 set_address(&sa_info, dev->dev_addr);
1318 i = 0;
1319 netdev_for_each_mc_addr(ha, dev) {
1320 if (i++ == 9)
1321 break;
1322 set_address(&sa_info, ha->addr);
1323 }
1324 while (i++ < 9)
1325 set_address(&sa_info, dev->dev_addr);
1326 SelectPage(0);
1327 }
1328
1329 /****************
1330 * Set or clear the multicast filter for this adaptor.
1331 * We can filter up to 9 addresses, if more are requested we set
1332 * multicast promiscuous mode.
1333 */
1334
1335 static void
1336 set_multicast_list(struct net_device *dev)
1337 {
1338 unsigned int ioaddr = dev->base_addr;
1339 unsigned value;
1340
1341 SelectPage(0x42);
1342 value = GetByte(XIRCREG42_SWC1) & 0xC0;
1343
1344 if (dev->flags & IFF_PROMISC) { /* snoop */
1345 PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */
1346 } else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) {
1347 PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */
1348 } else if (!netdev_mc_empty(dev)) {
1349 /* the chip can filter 9 addresses perfectly */
1350 PutByte(XIRCREG42_SWC1, value | 0x01);
1351 SelectPage(0x40);
1352 PutByte(XIRCREG40_CMD0, Offline);
1353 set_addresses(dev);
1354 SelectPage(0x40);
1355 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1356 } else { /* standard usage */
1357 PutByte(XIRCREG42_SWC1, value | 0x00);
1358 }
1359 SelectPage(0);
1360 }
1361
1362 static int
1363 do_config(struct net_device *dev, struct ifmap *map)
1364 {
1365 struct local_info *local = netdev_priv(dev);
1366
1367 pr_debug("do_config(%p)\n", dev);
1368 if (map->port != 255 && map->port != dev->if_port) {
1369 if (map->port > 4)
1370 return -EINVAL;
1371 if (!map->port) {
1372 local->probe_port = 1;
1373 dev->if_port = 1;
1374 } else {
1375 local->probe_port = 0;
1376 dev->if_port = map->port;
1377 }
1378 netdev_info(dev, "switching to %s port\n", if_names[dev->if_port]);
1379 do_reset(dev,1); /* not the fine way :-) */
1380 }
1381 return 0;
1382 }
1383
1384 /****************
1385 * Open the driver
1386 */
1387 static int
1388 do_open(struct net_device *dev)
1389 {
1390 struct local_info *lp = netdev_priv(dev);
1391 struct pcmcia_device *link = lp->p_dev;
1392
1393 dev_dbg(&link->dev, "do_open(%p)\n", dev);
1394
1395 /* Check that the PCMCIA card is still here. */
1396 /* Physical device present signature. */
1397 if (!pcmcia_dev_present(link))
1398 return -ENODEV;
1399
1400 /* okay */
1401 link->open++;
1402
1403 netif_start_queue(dev);
1404 do_reset(dev,1);
1405
1406 return 0;
1407 }
1408
1409 static void netdev_get_drvinfo(struct net_device *dev,
1410 struct ethtool_drvinfo *info)
1411 {
1412 strlcpy(info->driver, "xirc2ps_cs", sizeof(info->driver));
1413 snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx",
1414 dev->base_addr);
1415 }
1416
1417 static const struct ethtool_ops netdev_ethtool_ops = {
1418 .get_drvinfo = netdev_get_drvinfo,
1419 };
1420
1421 static int
1422 do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1423 {
1424 struct local_info *local = netdev_priv(dev);
1425 unsigned int ioaddr = dev->base_addr;
1426 struct mii_ioctl_data *data = if_mii(rq);
1427
1428 pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
1429 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
1430 data->phy_id, data->reg_num, data->val_in, data->val_out);
1431
1432 if (!local->mohawk)
1433 return -EOPNOTSUPP;
1434
1435 switch(cmd) {
1436 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
1437 data->phy_id = 0; /* we have only this address */
1438 /* fall through */
1439 case SIOCGMIIREG: /* Read the specified MII register. */
1440 data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f,
1441 data->reg_num & 0x1f);
1442 break;
1443 case SIOCSMIIREG: /* Write the specified MII register */
1444 mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in,
1445 16);
1446 break;
1447 default:
1448 return -EOPNOTSUPP;
1449 }
1450 return 0;
1451 }
1452
1453 static void
1454 hardreset(struct net_device *dev)
1455 {
1456 struct local_info *local = netdev_priv(dev);
1457 unsigned int ioaddr = dev->base_addr;
1458
1459 SelectPage(4);
1460 udelay(1);
1461 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1462 msleep(40); /* wait 40 msec */
1463 if (local->mohawk)
1464 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
1465 else
1466 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
1467 msleep(20); /* wait 20 msec */
1468 }
1469
1470 static void
1471 do_reset(struct net_device *dev, int full)
1472 {
1473 struct local_info *local = netdev_priv(dev);
1474 unsigned int ioaddr = dev->base_addr;
1475 unsigned value;
1476
1477 pr_debug("%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
1478
1479 hardreset(dev);
1480 PutByte(XIRCREG_CR, SoftReset); /* set */
1481 msleep(20); /* wait 20 msec */
1482 PutByte(XIRCREG_CR, 0); /* clear */
1483 msleep(40); /* wait 40 msec */
1484 if (local->mohawk) {
1485 SelectPage(4);
1486 /* set pin GP1 and GP2 to output (0x0c)
1487 * set GP1 to low to power up the ML6692 (0x00)
1488 * set GP2 to high to power up the 10Mhz chip (0x02)
1489 */
1490 PutByte(XIRCREG4_GPR0, 0x0e);
1491 }
1492
1493 /* give the circuits some time to power up */
1494 msleep(500); /* about 500ms */
1495
1496 local->last_ptr_value = 0;
1497 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
1498 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
1499
1500 if (local->probe_port) {
1501 if (!local->mohawk) {
1502 SelectPage(4);
1503 PutByte(XIRCREG4_GPR0, 4);
1504 local->probe_port = 0;
1505 }
1506 } else if (dev->if_port == 2) { /* enable 10Base2 */
1507 SelectPage(0x42);
1508 PutByte(XIRCREG42_SWC1, 0xC0);
1509 } else { /* enable 10BaseT */
1510 SelectPage(0x42);
1511 PutByte(XIRCREG42_SWC1, 0x80);
1512 }
1513 msleep(40); /* wait 40 msec to let it complete */
1514
1515 #if 0
1516 {
1517 SelectPage(0);
1518 value = GetByte(XIRCREG_ESR); /* read the ESR */
1519 pr_debug("%s: ESR is: %#02x\n", dev->name, value);
1520 }
1521 #endif
1522
1523 /* setup the ECR */
1524 SelectPage(1);
1525 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
1526 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
1527 value = GetByte(XIRCREG1_ECR);
1528 #if 0
1529 if (local->mohawk)
1530 value |= DisableLinkPulse;
1531 PutByte(XIRCREG1_ECR, value);
1532 #endif
1533 pr_debug("%s: ECR is: %#02x\n", dev->name, value);
1534
1535 SelectPage(0x42);
1536 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
1537
1538 if (local->silicon != 1) {
1539 /* set the local memory dividing line.
1540 * The comments in the sample code say that this is only
1541 * settable with the scipper version 2 which is revision 0.
1542 * Always for CE3 cards
1543 */
1544 SelectPage(2);
1545 PutWord(XIRCREG2_RBS, 0x2000);
1546 }
1547
1548 if (full)
1549 set_addresses(dev);
1550
1551 /* Hardware workaround:
1552 * The receive byte pointer after reset is off by 1 so we need
1553 * to move the offset pointer back to 0.
1554 */
1555 SelectPage(0);
1556 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
1557
1558 /* setup MAC IMRs and clear status registers */
1559 SelectPage(0x40); /* Bit 7 ... bit 0 */
1560 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
1561 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1562 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
1563 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
1564 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1565 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
1566
1567 if (full && local->mohawk && init_mii(dev)) {
1568 if (dev->if_port == 4 || local->dingo || local->new_mii) {
1569 netdev_info(dev, "MII selected\n");
1570 SelectPage(2);
1571 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
1572 msleep(20);
1573 } else {
1574 netdev_info(dev, "MII detected; using 10mbs\n");
1575 SelectPage(0x42);
1576 if (dev->if_port == 2) /* enable 10Base2 */
1577 PutByte(XIRCREG42_SWC1, 0xC0);
1578 else /* enable 10BaseT */
1579 PutByte(XIRCREG42_SWC1, 0x80);
1580 msleep(40); /* wait 40 msec to let it complete */
1581 }
1582 if (full_duplex)
1583 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
1584 } else { /* No MII */
1585 SelectPage(0);
1586 value = GetByte(XIRCREG_ESR); /* read the ESR */
1587 dev->if_port = (value & MediaSelect) ? 1 : 2;
1588 }
1589
1590 /* configure the LEDs */
1591 SelectPage(2);
1592 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
1593 PutByte(XIRCREG2_LED, 0x3b);
1594 else /* Coax: Not-Collision and Activity */
1595 PutByte(XIRCREG2_LED, 0x3a);
1596
1597 if (local->dingo)
1598 PutByte(0x0b, 0x04); /* 100 Mbit LED */
1599
1600 /* enable receiver and put the mac online */
1601 if (full) {
1602 set_multicast_list(dev);
1603 SelectPage(0x40);
1604 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1605 }
1606
1607 /* setup Ethernet IMR and enable interrupts */
1608 SelectPage(1);
1609 PutByte(XIRCREG1_IMR0, 0xff);
1610 udelay(1);
1611 SelectPage(0);
1612 PutByte(XIRCREG_CR, EnableIntr);
1613 if (local->modem && !local->dingo) { /* do some magic */
1614 if (!(GetByte(0x10) & 0x01))
1615 PutByte(0x10, 0x11); /* unmask master-int bit */
1616 }
1617
1618 if (full)
1619 netdev_info(dev, "media %s, silicon revision %d\n",
1620 if_names[dev->if_port], local->silicon);
1621 /* We should switch back to page 0 to avoid a bug in revision 0
1622 * where regs with offset below 8 can't be read after an access
1623 * to the MAC registers */
1624 SelectPage(0);
1625 }
1626
1627 /****************
1628 * Initialize the Media-Independent-Interface
1629 * Returns: True if we have a good MII
1630 */
1631 static int
1632 init_mii(struct net_device *dev)
1633 {
1634 struct local_info *local = netdev_priv(dev);
1635 unsigned int ioaddr = dev->base_addr;
1636 unsigned control, status, linkpartner;
1637 int i;
1638
1639 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
1640 dev->if_port = if_port;
1641 local->probe_port = 0;
1642 return 1;
1643 }
1644
1645 status = mii_rd(ioaddr, 0, 1);
1646 if ((status & 0xff00) != 0x7800)
1647 return 0; /* No MII */
1648
1649 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
1650
1651 if (local->probe_port)
1652 control = 0x1000; /* auto neg */
1653 else if (dev->if_port == 4)
1654 control = 0x2000; /* no auto neg, 100mbs mode */
1655 else
1656 control = 0x0000; /* no auto neg, 10mbs mode */
1657 mii_wr(ioaddr, 0, 0, control, 16);
1658 udelay(100);
1659 control = mii_rd(ioaddr, 0, 0);
1660
1661 if (control & 0x0400) {
1662 netdev_notice(dev, "can't take PHY out of isolation mode\n");
1663 local->probe_port = 0;
1664 return 0;
1665 }
1666
1667 if (local->probe_port) {
1668 /* according to the DP83840A specs the auto negotiation process
1669 * may take up to 3.5 sec, so we use this also for our ML6692
1670 * Fixme: Better to use a timer here!
1671 */
1672 for (i=0; i < 35; i++) {
1673 msleep(100); /* wait 100 msec */
1674 status = mii_rd(ioaddr, 0, 1);
1675 if ((status & 0x0020) && (status & 0x0004))
1676 break;
1677 }
1678
1679 if (!(status & 0x0020)) {
1680 netdev_info(dev, "autonegotiation failed; using 10mbs\n");
1681 if (!local->new_mii) {
1682 control = 0x0000;
1683 mii_wr(ioaddr, 0, 0, control, 16);
1684 udelay(100);
1685 SelectPage(0);
1686 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
1687 }
1688 } else {
1689 linkpartner = mii_rd(ioaddr, 0, 5);
1690 netdev_info(dev, "MII link partner: %04x\n", linkpartner);
1691 if (linkpartner & 0x0080) {
1692 dev->if_port = 4;
1693 } else
1694 dev->if_port = 1;
1695 }
1696 }
1697
1698 return 1;
1699 }
1700
1701 static void
1702 do_powerdown(struct net_device *dev)
1703 {
1704
1705 unsigned int ioaddr = dev->base_addr;
1706
1707 pr_debug("do_powerdown(%p)\n", dev);
1708
1709 SelectPage(4);
1710 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1711 SelectPage(0);
1712 }
1713
1714 static int
1715 do_stop(struct net_device *dev)
1716 {
1717 unsigned int ioaddr = dev->base_addr;
1718 struct local_info *lp = netdev_priv(dev);
1719 struct pcmcia_device *link = lp->p_dev;
1720
1721 dev_dbg(&link->dev, "do_stop(%p)\n", dev);
1722
1723 if (!link)
1724 return -ENODEV;
1725
1726 netif_stop_queue(dev);
1727
1728 SelectPage(0);
1729 PutByte(XIRCREG_CR, 0); /* disable interrupts */
1730 SelectPage(0x01);
1731 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
1732 SelectPage(4);
1733 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1734 SelectPage(0);
1735
1736 link->open--;
1737 return 0;
1738 }
1739
1740 static const struct pcmcia_device_id xirc2ps_ids[] = {
1741 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a),
1742 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a),
1743 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),
1744 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),
1745 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),
1746 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),
1747 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),
1748 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),
1749 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a),
1750 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2),
1751 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37),
1752 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073),
1753 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3),
1754 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609),
1755 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46),
1756 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2),
1757 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769),
1758 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db),
1759 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf),
1760 /* also matches CFE-10 cards! */
1761 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */
1762 PCMCIA_DEVICE_NULL,
1763 };
1764 MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids);
1765
1766
1767 static struct pcmcia_driver xirc2ps_cs_driver = {
1768 .owner = THIS_MODULE,
1769 .name = "xirc2ps_cs",
1770 .probe = xirc2ps_probe,
1771 .remove = xirc2ps_detach,
1772 .id_table = xirc2ps_ids,
1773 .suspend = xirc2ps_suspend,
1774 .resume = xirc2ps_resume,
1775 };
1776 module_pcmcia_driver(xirc2ps_cs_driver);
1777
1778 #ifndef MODULE
1779 static int __init setup_xirc2ps_cs(char *str)
1780 {
1781 /* if_port, full_duplex, do_sound, lockup_hack
1782 */
1783 int ints[10] = { -1 };
1784
1785 str = get_options(str, 9, ints);
1786
1787 #define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
1788 MAYBE_SET(if_port, 3);
1789 MAYBE_SET(full_duplex, 4);
1790 MAYBE_SET(do_sound, 5);
1791 MAYBE_SET(lockup_hack, 6);
1792 #undef MAYBE_SET
1793
1794 return 1;
1795 }
1796
1797 __setup("xirc2ps_cs=", setup_xirc2ps_cs);
1798 #endif
Linux with added FPC-III support