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Merge tag 'edac_fixes_for_3.10' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / drivers / net / ethernet / xircom / xirc2ps_cs.c
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, write to the Free Software
31 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
32 *
33 *
34 * ALTERNATIVELY, this driver may be distributed under the terms of
35 * the following license, in which case the provisions of this license
36 * are required INSTEAD OF the GNU General Public License. (This clause
37 * is necessary due to a potential bad interaction between the GPL and
38 * the restrictions contained in a BSD-style copyright.)
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, and the entire permission notice in its entirety,
45 * including the disclaimer of warranties.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution.
49 * 3. The name of the author may not be used to endorse or promote
50 * products derived from this software without specific prior
51 * written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
54 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
55 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
56 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
57 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
58 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
59 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
61 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
62 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
63 * OF THE POSSIBILITY OF SUCH DAMAGE.
64 */
65
66 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
67
68 #include <linux/module.h>
69 #include <linux/kernel.h>
70 #include <linux/init.h>
71 #include <linux/ptrace.h>
72 #include <linux/slab.h>
73 #include <linux/string.h>
74 #include <linux/timer.h>
75 #include <linux/interrupt.h>
76 #include <linux/in.h>
77 #include <linux/delay.h>
78 #include <linux/ethtool.h>
79 #include <linux/netdevice.h>
80 #include <linux/etherdevice.h>
81 #include <linux/skbuff.h>
82 #include <linux/if_arp.h>
83 #include <linux/ioport.h>
84 #include <linux/bitops.h>
85 #include <linux/mii.h>
86
87 #include <pcmcia/cistpl.h>
88 #include <pcmcia/cisreg.h>
89 #include <pcmcia/ciscode.h>
90
91 #include <asm/io.h>
92 #include <asm/uaccess.h>
93
94 #ifndef MANFID_COMPAQ
95 #define MANFID_COMPAQ 0x0138
96 #define MANFID_COMPAQ2 0x0183 /* is this correct? */
97 #endif
98
99 #include <pcmcia/ds.h>
100
101 /* Time in jiffies before concluding Tx hung */
102 #define TX_TIMEOUT ((400*HZ)/1000)
103
104 /****************
105 * Some constants used to access the hardware
106 */
107
108 /* Register offsets and value constans */
109 #define XIRCREG_CR 0 /* Command register (wr) */
110 enum xirc_cr {
111 TransmitPacket = 0x01,
112 SoftReset = 0x02,
113 EnableIntr = 0x04,
114 ForceIntr = 0x08,
115 ClearTxFIFO = 0x10,
116 ClearRxOvrun = 0x20,
117 RestartTx = 0x40
118 };
119 #define XIRCREG_ESR 0 /* Ethernet status register (rd) */
120 enum xirc_esr {
121 FullPktRcvd = 0x01, /* full packet in receive buffer */
122 PktRejected = 0x04, /* a packet has been rejected */
123 TxPktPend = 0x08, /* TX Packet Pending */
124 IncorPolarity = 0x10,
125 MediaSelect = 0x20 /* set if TP, clear if AUI */
126 };
127 #define XIRCREG_PR 1 /* Page Register select */
128 #define XIRCREG_EDP 4 /* Ethernet Data Port Register */
129 #define XIRCREG_ISR 6 /* Ethernet Interrupt Status Register */
130 enum xirc_isr {
131 TxBufOvr = 0x01, /* TX Buffer Overflow */
132 PktTxed = 0x02, /* Packet Transmitted */
133 MACIntr = 0x04, /* MAC Interrupt occurred */
134 TxResGrant = 0x08, /* Tx Reservation Granted */
135 RxFullPkt = 0x20, /* Rx Full Packet */
136 RxPktRej = 0x40, /* Rx Packet Rejected */
137 ForcedIntr= 0x80 /* Forced Interrupt */
138 };
139 #define XIRCREG1_IMR0 12 /* Ethernet Interrupt Mask Register (on page 1)*/
140 #define XIRCREG1_IMR1 13
141 #define XIRCREG0_TSO 8 /* Transmit Space Open Register (on page 0)*/
142 #define XIRCREG0_TRS 10 /* Transmit reservation Size Register (page 0)*/
143 #define XIRCREG0_DO 12 /* Data Offset Register (page 0) (wr) */
144 #define XIRCREG0_RSR 12 /* Receive Status Register (page 0) (rd) */
145 enum xirc_rsr {
146 PhyPkt = 0x01, /* set:physical packet, clear: multicast packet */
147 BrdcstPkt = 0x02, /* set if it is a broadcast packet */
148 PktTooLong = 0x04, /* set if packet length > 1518 */
149 AlignErr = 0x10, /* incorrect CRC and last octet not complete */
150 CRCErr = 0x20, /* incorrect CRC and last octet is complete */
151 PktRxOk = 0x80 /* received ok */
152 };
153 #define XIRCREG0_PTR 13 /* packets transmitted register (rd) */
154 #define XIRCREG0_RBC 14 /* receive byte count regsister (rd) */
155 #define XIRCREG1_ECR 14 /* ethernet configurationn register */
156 enum xirc_ecr {
157 FullDuplex = 0x04, /* enable full duplex mode */
158 LongTPMode = 0x08, /* adjust for longer lengths of TP cable */
159 DisablePolCor = 0x10,/* disable auto polarity correction */
160 DisableLinkPulse = 0x20, /* disable link pulse generation */
161 DisableAutoTx = 0x40, /* disable auto-transmit */
162 };
163 #define XIRCREG2_RBS 8 /* receive buffer start register */
164 #define XIRCREG2_LED 10 /* LED Configuration register */
165 /* values for the leds: Bits 2-0 for led 1
166 * 0 disabled Bits 5-3 for led 2
167 * 1 collision
168 * 2 noncollision
169 * 3 link_detected
170 * 4 incor_polarity
171 * 5 jabber
172 * 6 auto_assertion
173 * 7 rx_tx_activity
174 */
175 #define XIRCREG2_MSR 12 /* Mohawk specific register */
176
177 #define XIRCREG4_GPR0 8 /* General Purpose Register 0 */
178 #define XIRCREG4_GPR1 9 /* General Purpose Register 1 */
179 #define XIRCREG2_GPR2 13 /* General Purpose Register 2 (page2!)*/
180 #define XIRCREG4_BOV 10 /* Bonding Version Register */
181 #define XIRCREG4_LMA 12 /* Local Memory Address Register */
182 #define XIRCREG4_LMD 14 /* Local Memory Data Port */
183 /* MAC register can only by accessed with 8 bit operations */
184 #define XIRCREG40_CMD0 8 /* Command Register (wr) */
185 enum xirc_cmd { /* Commands */
186 Transmit = 0x01,
187 EnableRecv = 0x04,
188 DisableRecv = 0x08,
189 Abort = 0x10,
190 Online = 0x20,
191 IntrAck = 0x40,
192 Offline = 0x80
193 };
194 #define XIRCREG5_RHSA0 10 /* Rx Host Start Address */
195 #define XIRCREG40_RXST0 9 /* Receive Status Register */
196 #define XIRCREG40_TXST0 11 /* Transmit Status Register 0 */
197 #define XIRCREG40_TXST1 12 /* Transmit Status Register 10 */
198 #define XIRCREG40_RMASK0 13 /* Receive Mask Register */
199 #define XIRCREG40_TMASK0 14 /* Transmit Mask Register 0 */
200 #define XIRCREG40_TMASK1 15 /* Transmit Mask Register 0 */
201 #define XIRCREG42_SWC0 8 /* Software Configuration 0 */
202 #define XIRCREG42_SWC1 9 /* Software Configuration 1 */
203 #define XIRCREG42_BOC 10 /* Back-Off Configuration */
204 #define XIRCREG44_TDR0 8 /* Time Domain Reflectometry 0 */
205 #define XIRCREG44_TDR1 9 /* Time Domain Reflectometry 1 */
206 #define XIRCREG44_RXBC_LO 10 /* Rx Byte Count 0 (rd) */
207 #define XIRCREG44_RXBC_HI 11 /* Rx Byte Count 1 (rd) */
208 #define XIRCREG45_REV 15 /* Revision Register (rd) */
209 #define XIRCREG50_IA 8 /* Individual Address (8-13) */
210
211 static const char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" };
212
213 /* card types */
214 #define XIR_UNKNOWN 0 /* unknown: not supported */
215 #define XIR_CE 1 /* (prodid 1) different hardware: not supported */
216 #define XIR_CE2 2 /* (prodid 2) */
217 #define XIR_CE3 3 /* (prodid 3) */
218 #define XIR_CEM 4 /* (prodid 1) different hardware: not supported */
219 #define XIR_CEM2 5 /* (prodid 2) */
220 #define XIR_CEM3 6 /* (prodid 3) */
221 #define XIR_CEM33 7 /* (prodid 4) */
222 #define XIR_CEM56M 8 /* (prodid 5) */
223 #define XIR_CEM56 9 /* (prodid 6) */
224 #define XIR_CM28 10 /* (prodid 3) modem only: not supported here */
225 #define XIR_CM33 11 /* (prodid 4) modem only: not supported here */
226 #define XIR_CM56 12 /* (prodid 5) modem only: not supported here */
227 #define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */
228 #define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */
229 /*====================================================================*/
230
231 /* Module parameters */
232
233 MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver");
234 MODULE_LICENSE("Dual MPL/GPL");
235
236 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
237
238 INT_MODULE_PARM(if_port, 0);
239 INT_MODULE_PARM(full_duplex, 0);
240 INT_MODULE_PARM(do_sound, 1);
241 INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */
242
243 /*====================================================================*/
244
245 /* We do not process more than these number of bytes during one
246 * interrupt. (Of course we receive complete packets, so this is not
247 * an exact value).
248 * Something between 2000..22000; first value gives best interrupt latency,
249 * the second enables the usage of the complete on-chip buffer. We use the
250 * high value as the initial value.
251 */
252 static unsigned maxrx_bytes = 22000;
253
254 /* MII management prototypes */
255 static void mii_idle(unsigned int ioaddr);
256 static void mii_putbit(unsigned int ioaddr, unsigned data);
257 static int mii_getbit(unsigned int ioaddr);
258 static void mii_wbits(unsigned int ioaddr, unsigned data, int len);
259 static unsigned mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg);
260 static void mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg,
261 unsigned data, int len);
262
263 static int has_ce2_string(struct pcmcia_device * link);
264 static int xirc2ps_config(struct pcmcia_device * link);
265 static void xirc2ps_release(struct pcmcia_device * link);
266 static void xirc2ps_detach(struct pcmcia_device *p_dev);
267
268 static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id);
269
270 typedef struct local_info_t {
271 struct net_device *dev;
272 struct pcmcia_device *p_dev;
273
274 int card_type;
275 int probe_port;
276 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */
277 int mohawk; /* a CE3 type card */
278 int dingo; /* a CEM56 type card */
279 int new_mii; /* has full 10baseT/100baseT MII */
280 int modem; /* is a multi function card (i.e with a modem) */
281 void __iomem *dingo_ccr; /* only used for CEM56 cards */
282 unsigned last_ptr_value; /* last packets transmitted value */
283 const char *manf_str;
284 struct work_struct tx_timeout_task;
285 } local_info_t;
286
287 /****************
288 * Some more prototypes
289 */
290 static netdev_tx_t do_start_xmit(struct sk_buff *skb,
291 struct net_device *dev);
292 static void xirc_tx_timeout(struct net_device *dev);
293 static void xirc2ps_tx_timeout_task(struct work_struct *work);
294 static void set_addresses(struct net_device *dev);
295 static void set_multicast_list(struct net_device *dev);
296 static int set_card_type(struct pcmcia_device *link);
297 static int do_config(struct net_device *dev, struct ifmap *map);
298 static int do_open(struct net_device *dev);
299 static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
300 static const struct ethtool_ops netdev_ethtool_ops;
301 static void hardreset(struct net_device *dev);
302 static void do_reset(struct net_device *dev, int full);
303 static int init_mii(struct net_device *dev);
304 static void do_powerdown(struct net_device *dev);
305 static int do_stop(struct net_device *dev);
306
307 /*=============== Helper functions =========================*/
308 #define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR)
309 #define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))
310 #define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))
311 #define PutByte(reg,value) outb((value), ioaddr+(reg))
312 #define PutWord(reg,value) outw((value), ioaddr+(reg))
313
314 /*====== Functions used for debugging =================================*/
315 #if 0 /* reading regs may change system status */
316 static void
317 PrintRegisters(struct net_device *dev)
318 {
319 unsigned int ioaddr = dev->base_addr;
320
321 if (pc_debug > 1) {
322 int i, page;
323
324 printk(KERN_DEBUG pr_fmt("Register common: "));
325 for (i = 0; i < 8; i++)
326 pr_cont(" %2.2x", GetByte(i));
327 pr_cont("\n");
328 for (page = 0; page <= 8; page++) {
329 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page);
330 SelectPage(page);
331 for (i = 8; i < 16; i++)
332 pr_cont(" %2.2x", GetByte(i));
333 pr_cont("\n");
334 }
335 for (page=0x40 ; page <= 0x5f; page++) {
336 if (page == 0x43 || (page >= 0x46 && page <= 0x4f) ||
337 (page >= 0x51 && page <=0x5e))
338 continue;
339 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page);
340 SelectPage(page);
341 for (i = 8; i < 16; i++)
342 pr_cont(" %2.2x", GetByte(i));
343 pr_cont("\n");
344 }
345 }
346 }
347 #endif /* 0 */
348
349 /*============== MII Management functions ===============*/
350
351 /****************
352 * Turn around for read
353 */
354 static void
355 mii_idle(unsigned int ioaddr)
356 {
357 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */
358 udelay(1);
359 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */
360 udelay(1);
361 }
362
363 /****************
364 * Write a bit to MDI/O
365 */
366 static void
367 mii_putbit(unsigned int ioaddr, unsigned data)
368 {
369 #if 1
370 if (data) {
371 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */
372 udelay(1);
373 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */
374 udelay(1);
375 } else {
376 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */
377 udelay(1);
378 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */
379 udelay(1);
380 }
381 #else
382 if (data) {
383 PutWord(XIRCREG2_GPR2-1, 0x0e0e);
384 udelay(1);
385 PutWord(XIRCREG2_GPR2-1, 0x0f0f);
386 udelay(1);
387 } else {
388 PutWord(XIRCREG2_GPR2-1, 0x0c0c);
389 udelay(1);
390 PutWord(XIRCREG2_GPR2-1, 0x0d0d);
391 udelay(1);
392 }
393 #endif
394 }
395
396 /****************
397 * Get a bit from MDI/O
398 */
399 static int
400 mii_getbit(unsigned int ioaddr)
401 {
402 unsigned d;
403
404 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */
405 udelay(1);
406 d = GetByte(XIRCREG2_GPR2); /* read MDIO */
407 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */
408 udelay(1);
409 return d & 0x20; /* read MDIO */
410 }
411
412 static void
413 mii_wbits(unsigned int ioaddr, unsigned data, int len)
414 {
415 unsigned m = 1 << (len-1);
416 for (; m; m >>= 1)
417 mii_putbit(ioaddr, data & m);
418 }
419
420 static unsigned
421 mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg)
422 {
423 int i;
424 unsigned data=0, m;
425
426 SelectPage(2);
427 for (i=0; i < 32; i++) /* 32 bit preamble */
428 mii_putbit(ioaddr, 1);
429 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */
430 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
431 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */
432 mii_idle(ioaddr); /* turn around */
433 mii_getbit(ioaddr);
434
435 for (m = 1<<15; m; m >>= 1)
436 if (mii_getbit(ioaddr))
437 data |= m;
438 mii_idle(ioaddr);
439 return data;
440 }
441
442 static void
443 mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data,
444 int len)
445 {
446 int i;
447
448 SelectPage(2);
449 for (i=0; i < 32; i++) /* 32 bit preamble */
450 mii_putbit(ioaddr, 1);
451 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */
452 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
453 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */
454 mii_putbit(ioaddr, 1); /* turn around */
455 mii_putbit(ioaddr, 0);
456 mii_wbits(ioaddr, data, len); /* And write the data */
457 mii_idle(ioaddr);
458 }
459
460 /*============= Main bulk of functions =========================*/
461
462 static const struct net_device_ops netdev_ops = {
463 .ndo_open = do_open,
464 .ndo_stop = do_stop,
465 .ndo_start_xmit = do_start_xmit,
466 .ndo_tx_timeout = xirc_tx_timeout,
467 .ndo_set_config = do_config,
468 .ndo_do_ioctl = do_ioctl,
469 .ndo_set_rx_mode = set_multicast_list,
470 .ndo_change_mtu = eth_change_mtu,
471 .ndo_set_mac_address = eth_mac_addr,
472 .ndo_validate_addr = eth_validate_addr,
473 };
474
475 static int
476 xirc2ps_probe(struct pcmcia_device *link)
477 {
478 struct net_device *dev;
479 local_info_t *local;
480
481 dev_dbg(&link->dev, "attach()\n");
482
483 /* Allocate the device structure */
484 dev = alloc_etherdev(sizeof(local_info_t));
485 if (!dev)
486 return -ENOMEM;
487 local = netdev_priv(dev);
488 local->dev = dev;
489 local->p_dev = link;
490 link->priv = dev;
491
492 /* General socket configuration */
493 link->config_index = 1;
494
495 /* Fill in card specific entries */
496 dev->netdev_ops = &netdev_ops;
497 dev->ethtool_ops = &netdev_ethtool_ops;
498 dev->watchdog_timeo = TX_TIMEOUT;
499 INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task);
500
501 return xirc2ps_config(link);
502 } /* xirc2ps_attach */
503
504 static void
505 xirc2ps_detach(struct pcmcia_device *link)
506 {
507 struct net_device *dev = link->priv;
508
509 dev_dbg(&link->dev, "detach\n");
510
511 unregister_netdev(dev);
512
513 xirc2ps_release(link);
514
515 free_netdev(dev);
516 } /* xirc2ps_detach */
517
518 /****************
519 * Detect the type of the card. s is the buffer with the data of tuple 0x20
520 * Returns: 0 := not supported
521 * mediaid=11 and prodid=47
522 * Media-Id bits:
523 * Ethernet 0x01
524 * Tokenring 0x02
525 * Arcnet 0x04
526 * Wireless 0x08
527 * Modem 0x10
528 * GSM only 0x20
529 * Prod-Id bits:
530 * Pocket 0x10
531 * External 0x20
532 * Creditcard 0x40
533 * Cardbus 0x80
534 *
535 */
536 static int
537 set_card_type(struct pcmcia_device *link)
538 {
539 struct net_device *dev = link->priv;
540 local_info_t *local = netdev_priv(dev);
541 u8 *buf;
542 unsigned int cisrev, mediaid, prodid;
543 size_t len;
544
545 len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf);
546 if (len < 5) {
547 dev_err(&link->dev, "invalid CIS -- sorry\n");
548 return 0;
549 }
550
551 cisrev = buf[2];
552 mediaid = buf[3];
553 prodid = buf[4];
554
555 dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n",
556 cisrev, mediaid, prodid);
557
558 local->mohawk = 0;
559 local->dingo = 0;
560 local->modem = 0;
561 local->card_type = XIR_UNKNOWN;
562 if (!(prodid & 0x40)) {
563 pr_notice("Oops: Not a creditcard\n");
564 return 0;
565 }
566 if (!(mediaid & 0x01)) {
567 pr_notice("Not an Ethernet card\n");
568 return 0;
569 }
570 if (mediaid & 0x10) {
571 local->modem = 1;
572 switch(prodid & 15) {
573 case 1: local->card_type = XIR_CEM ; break;
574 case 2: local->card_type = XIR_CEM2 ; break;
575 case 3: local->card_type = XIR_CEM3 ; break;
576 case 4: local->card_type = XIR_CEM33 ; break;
577 case 5: local->card_type = XIR_CEM56M;
578 local->mohawk = 1;
579 break;
580 case 6:
581 case 7: /* 7 is the RealPort 10/56 */
582 local->card_type = XIR_CEM56 ;
583 local->mohawk = 1;
584 local->dingo = 1;
585 break;
586 }
587 } else {
588 switch(prodid & 15) {
589 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
590 break;
591 case 2: local->card_type = XIR_CE2; break;
592 case 3: local->card_type = XIR_CE3;
593 local->mohawk = 1;
594 break;
595 }
596 }
597 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
598 pr_notice("Sorry, this is an old CE card\n");
599 return 0;
600 }
601 if (local->card_type == XIR_UNKNOWN)
602 pr_notice("unknown card (mediaid=%02x prodid=%02x)\n", mediaid, prodid);
603
604 return 1;
605 }
606
607 /****************
608 * There are some CE2 cards out which claim to be a CE card.
609 * This function looks for a "CE2" in the 3rd version field.
610 * Returns: true if this is a CE2
611 */
612 static int
613 has_ce2_string(struct pcmcia_device * p_dev)
614 {
615 if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2"))
616 return 1;
617 return 0;
618 }
619
620 static int
621 xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data)
622 {
623 unsigned int ioaddr;
624
625 if ((p_dev->resource[0]->start & 0xf) == 8)
626 return -ENODEV;
627
628 p_dev->resource[0]->end = 16;
629 p_dev->resource[1]->end = 8;
630 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
631 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
632 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
633 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
634 p_dev->io_lines = 10;
635
636 p_dev->resource[1]->start = p_dev->resource[0]->start;
637 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
638 p_dev->resource[0]->start = ioaddr;
639 if (!pcmcia_request_io(p_dev))
640 return 0;
641 }
642 return -ENODEV;
643 }
644
645 static int
646 xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data)
647 {
648 int *pass = priv_data;
649 resource_size_t tmp = p_dev->resource[1]->start;
650
651 tmp += (*pass ? (p_dev->config_index & 0x20 ? -24 : 8)
652 : (p_dev->config_index & 0x20 ? 8 : -24));
653
654 if ((p_dev->resource[0]->start & 0xf) == 8)
655 return -ENODEV;
656
657 p_dev->resource[0]->end = 18;
658 p_dev->resource[1]->end = 8;
659 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
660 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
661 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
662 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
663 p_dev->io_lines = 10;
664
665 p_dev->resource[1]->start = p_dev->resource[0]->start;
666 p_dev->resource[0]->start = tmp;
667 return pcmcia_request_io(p_dev);
668 }
669
670
671 static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev,
672 tuple_t *tuple,
673 void *priv)
674 {
675 struct net_device *dev = priv;
676 int i;
677
678 if (tuple->TupleDataLen != 13)
679 return -EINVAL;
680 if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) ||
681 (tuple->TupleData[2] != 6))
682 return -EINVAL;
683 /* another try (James Lehmer's CE2 version 4.1)*/
684 for (i = 2; i < 6; i++)
685 dev->dev_addr[i] = tuple->TupleData[i+2];
686 return 0;
687 };
688
689
690 static int
691 xirc2ps_config(struct pcmcia_device * link)
692 {
693 struct net_device *dev = link->priv;
694 local_info_t *local = netdev_priv(dev);
695 unsigned int ioaddr;
696 int err;
697 u8 *buf;
698 size_t len;
699
700 local->dingo_ccr = NULL;
701
702 dev_dbg(&link->dev, "config\n");
703
704 /* Is this a valid card */
705 if (link->has_manf_id == 0) {
706 pr_notice("manfid not found in CIS\n");
707 goto failure;
708 }
709
710 switch (link->manf_id) {
711 case MANFID_XIRCOM:
712 local->manf_str = "Xircom";
713 break;
714 case MANFID_ACCTON:
715 local->manf_str = "Accton";
716 break;
717 case MANFID_COMPAQ:
718 case MANFID_COMPAQ2:
719 local->manf_str = "Compaq";
720 break;
721 case MANFID_INTEL:
722 local->manf_str = "Intel";
723 break;
724 case MANFID_TOSHIBA:
725 local->manf_str = "Toshiba";
726 break;
727 default:
728 pr_notice("Unknown Card Manufacturer ID: 0x%04x\n",
729 (unsigned)link->manf_id);
730 goto failure;
731 }
732 dev_dbg(&link->dev, "found %s card\n", local->manf_str);
733
734 if (!set_card_type(link)) {
735 pr_notice("this card is not supported\n");
736 goto failure;
737 }
738
739 /* get the ethernet address from the CIS */
740 err = pcmcia_get_mac_from_cis(link, dev);
741
742 /* not found: try to get the node-id from tuple 0x89 */
743 if (err) {
744 len = pcmcia_get_tuple(link, 0x89, &buf);
745 /* data layout looks like tuple 0x22 */
746 if (buf && len == 8) {
747 if (*buf == CISTPL_FUNCE_LAN_NODE_ID) {
748 int i;
749 for (i = 2; i < 6; i++)
750 dev->dev_addr[i] = buf[i+2];
751 } else
752 err = -1;
753 }
754 kfree(buf);
755 }
756
757 if (err)
758 err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev);
759
760 if (err) {
761 pr_notice("node-id not found in CIS\n");
762 goto failure;
763 }
764
765 if (local->modem) {
766 int pass;
767 link->config_flags |= CONF_AUTO_SET_IO;
768
769 if (local->dingo) {
770 /* Take the Modem IO port from the CIS and scan for a free
771 * Ethernet port */
772 if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL))
773 goto port_found;
774 } else {
775 /* We do 2 passes here: The first one uses the regular mapping and
776 * the second tries again, thereby considering that the 32 ports are
777 * mirrored every 32 bytes. Actually we use a mirrored port for
778 * the Mako if (on the first pass) the COR bit 5 is set.
779 */
780 for (pass=0; pass < 2; pass++)
781 if (!pcmcia_loop_config(link, xirc2ps_config_check,
782 &pass))
783 goto port_found;
784 /* if special option:
785 * try to configure as Ethernet only.
786 * .... */
787 }
788 pr_notice("no ports available\n");
789 } else {
790 link->io_lines = 10;
791 link->resource[0]->end = 16;
792 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
793 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
794 link->resource[0]->start = ioaddr;
795 if (!(err = pcmcia_request_io(link)))
796 goto port_found;
797 }
798 link->resource[0]->start = 0; /* let CS decide */
799 if ((err = pcmcia_request_io(link)))
800 goto config_error;
801 }
802 port_found:
803 if (err)
804 goto config_error;
805
806 /****************
807 * Now allocate an interrupt line. Note that this does not
808 * actually assign a handler to the interrupt.
809 */
810 if ((err=pcmcia_request_irq(link, xirc2ps_interrupt)))
811 goto config_error;
812
813 link->config_flags |= CONF_ENABLE_IRQ;
814 if (do_sound)
815 link->config_flags |= CONF_ENABLE_SPKR;
816
817 if ((err = pcmcia_enable_device(link)))
818 goto config_error;
819
820 if (local->dingo) {
821 /* Reset the modem's BAR to the correct value
822 * This is necessary because in the RequestConfiguration call,
823 * the base address of the ethernet port (BasePort1) is written
824 * to the BAR registers of the modem.
825 */
826 err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, (u8)
827 link->resource[1]->start & 0xff);
828 if (err)
829 goto config_error;
830
831 err = pcmcia_write_config_byte(link, CISREG_IOBASE_1,
832 (link->resource[1]->start >> 8) & 0xff);
833 if (err)
834 goto config_error;
835
836 /* There is no config entry for the Ethernet part which
837 * is at 0x0800. So we allocate a window into the attribute
838 * memory and write direct to the CIS registers
839 */
840 link->resource[2]->flags = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM |
841 WIN_ENABLE;
842 link->resource[2]->start = link->resource[2]->end = 0;
843 if ((err = pcmcia_request_window(link, link->resource[2], 0)))
844 goto config_error;
845
846 local->dingo_ccr = ioremap(link->resource[2]->start, 0x1000) + 0x0800;
847 if ((err = pcmcia_map_mem_page(link, link->resource[2], 0)))
848 goto config_error;
849
850 /* Setup the CCRs; there are no infos in the CIS about the Ethernet
851 * part.
852 */
853 writeb(0x47, local->dingo_ccr + CISREG_COR);
854 ioaddr = link->resource[0]->start;
855 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
856 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
857
858 #if 0
859 {
860 u_char tmp;
861 pr_info("ECOR:");
862 for (i=0; i < 7; i++) {
863 tmp = readb(local->dingo_ccr + i*2);
864 pr_cont(" %02x", tmp);
865 }
866 pr_cont("\n");
867 pr_info("DCOR:");
868 for (i=0; i < 4; i++) {
869 tmp = readb(local->dingo_ccr + 0x20 + i*2);
870 pr_cont(" %02x", tmp);
871 }
872 pr_cont("\n");
873 pr_info("SCOR:");
874 for (i=0; i < 10; i++) {
875 tmp = readb(local->dingo_ccr + 0x40 + i*2);
876 pr_cont(" %02x", tmp);
877 }
878 pr_cont("\n");
879 }
880 #endif
881
882 writeb(0x01, local->dingo_ccr + 0x20);
883 writeb(0x0c, local->dingo_ccr + 0x22);
884 writeb(0x00, local->dingo_ccr + 0x24);
885 writeb(0x00, local->dingo_ccr + 0x26);
886 writeb(0x00, local->dingo_ccr + 0x28);
887 }
888
889 /* The if_port symbol can be set when the module is loaded */
890 local->probe_port=0;
891 if (!if_port) {
892 local->probe_port = dev->if_port = 1;
893 } else if ((if_port >= 1 && if_port <= 2) ||
894 (local->mohawk && if_port==4))
895 dev->if_port = if_port;
896 else
897 pr_notice("invalid if_port requested\n");
898
899 /* we can now register the device with the net subsystem */
900 dev->irq = link->irq;
901 dev->base_addr = link->resource[0]->start;
902
903 if (local->dingo)
904 do_reset(dev, 1); /* a kludge to make the cem56 work */
905
906 SET_NETDEV_DEV(dev, &link->dev);
907
908 if ((err=register_netdev(dev))) {
909 pr_notice("register_netdev() failed\n");
910 goto config_error;
911 }
912
913 /* give some infos about the hardware */
914 netdev_info(dev, "%s: port %#3lx, irq %d, hwaddr %pM\n",
915 local->manf_str, (u_long)dev->base_addr, (int)dev->irq,
916 dev->dev_addr);
917
918 return 0;
919
920 config_error:
921 xirc2ps_release(link);
922 return -ENODEV;
923
924 failure:
925 return -ENODEV;
926 } /* xirc2ps_config */
927
928 static void
929 xirc2ps_release(struct pcmcia_device *link)
930 {
931 dev_dbg(&link->dev, "release\n");
932
933 if (link->resource[2]->end) {
934 struct net_device *dev = link->priv;
935 local_info_t *local = netdev_priv(dev);
936 if (local->dingo)
937 iounmap(local->dingo_ccr - 0x0800);
938 }
939 pcmcia_disable_device(link);
940 } /* xirc2ps_release */
941
942 /*====================================================================*/
943
944
945 static int xirc2ps_suspend(struct pcmcia_device *link)
946 {
947 struct net_device *dev = link->priv;
948
949 if (link->open) {
950 netif_device_detach(dev);
951 do_powerdown(dev);
952 }
953
954 return 0;
955 }
956
957 static int xirc2ps_resume(struct pcmcia_device *link)
958 {
959 struct net_device *dev = link->priv;
960
961 if (link->open) {
962 do_reset(dev,1);
963 netif_device_attach(dev);
964 }
965
966 return 0;
967 }
968
969
970 /*====================================================================*/
971
972 /****************
973 * This is the Interrupt service route.
974 */
975 static irqreturn_t
976 xirc2ps_interrupt(int irq, void *dev_id)
977 {
978 struct net_device *dev = (struct net_device *)dev_id;
979 local_info_t *lp = netdev_priv(dev);
980 unsigned int ioaddr;
981 u_char saved_page;
982 unsigned bytes_rcvd;
983 unsigned int_status, eth_status, rx_status, tx_status;
984 unsigned rsr, pktlen;
985 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
986 * is this something to worry about?
987 * -- on a laptop?
988 */
989
990 if (!netif_device_present(dev))
991 return IRQ_HANDLED;
992
993 ioaddr = dev->base_addr;
994 if (lp->mohawk) { /* must disable the interrupt */
995 PutByte(XIRCREG_CR, 0);
996 }
997
998 pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
999
1000 saved_page = GetByte(XIRCREG_PR);
1001 /* Read the ISR to see whats the cause for the interrupt.
1002 * This also clears the interrupt flags on CE2 cards
1003 */
1004 int_status = GetByte(XIRCREG_ISR);
1005 bytes_rcvd = 0;
1006 loop_entry:
1007 if (int_status == 0xff) { /* card may be ejected */
1008 pr_debug("%s: interrupt %d for dead card\n", dev->name, irq);
1009 goto leave;
1010 }
1011 eth_status = GetByte(XIRCREG_ESR);
1012
1013 SelectPage(0x40);
1014 rx_status = GetByte(XIRCREG40_RXST0);
1015 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
1016 tx_status = GetByte(XIRCREG40_TXST0);
1017 tx_status |= GetByte(XIRCREG40_TXST1) << 8;
1018 PutByte(XIRCREG40_TXST0, 0);
1019 PutByte(XIRCREG40_TXST1, 0);
1020
1021 pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
1022 dev->name, int_status, eth_status, rx_status, tx_status);
1023
1024 /***** receive section ******/
1025 SelectPage(0);
1026 while (eth_status & FullPktRcvd) {
1027 rsr = GetByte(XIRCREG0_RSR);
1028 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
1029 /* too many bytes received during this int, drop the rest of the
1030 * packets */
1031 dev->stats.rx_dropped++;
1032 pr_debug("%s: RX drop, too much done\n", dev->name);
1033 } else if (rsr & PktRxOk) {
1034 struct sk_buff *skb;
1035
1036 pktlen = GetWord(XIRCREG0_RBC);
1037 bytes_rcvd += pktlen;
1038
1039 pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen);
1040
1041 /* 1 extra so we can use insw */
1042 skb = netdev_alloc_skb(dev, pktlen + 3);
1043 if (!skb) {
1044 dev->stats.rx_dropped++;
1045 } else { /* okay get the packet */
1046 skb_reserve(skb, 2);
1047 if (lp->silicon == 0 ) { /* work around a hardware bug */
1048 unsigned rhsa; /* receive start address */
1049
1050 SelectPage(5);
1051 rhsa = GetWord(XIRCREG5_RHSA0);
1052 SelectPage(0);
1053 rhsa += 3; /* skip control infos */
1054 if (rhsa >= 0x8000)
1055 rhsa = 0;
1056 if (rhsa + pktlen > 0x8000) {
1057 unsigned i;
1058 u_char *buf = skb_put(skb, pktlen);
1059 for (i=0; i < pktlen ; i++, rhsa++) {
1060 buf[i] = GetByte(XIRCREG_EDP);
1061 if (rhsa == 0x8000) {
1062 rhsa = 0;
1063 i--;
1064 }
1065 }
1066 } else {
1067 insw(ioaddr+XIRCREG_EDP,
1068 skb_put(skb, pktlen), (pktlen+1)>>1);
1069 }
1070 }
1071 #if 0
1072 else if (lp->mohawk) {
1073 /* To use this 32 bit access we should use
1074 * a manual optimized loop
1075 * Also the words are swapped, we can get more
1076 * performance by using 32 bit access and swapping
1077 * the words in a register. Will need this for cardbus
1078 *
1079 * Note: don't forget to change the ALLOC_SKB to .. +3
1080 */
1081 unsigned i;
1082 u_long *p = skb_put(skb, pktlen);
1083 register u_long a;
1084 unsigned int edpreg = ioaddr+XIRCREG_EDP-2;
1085 for (i=0; i < len ; i += 4, p++) {
1086 a = inl(edpreg);
1087 __asm__("rorl $16,%0\n\t"
1088 :"=q" (a)
1089 : "0" (a));
1090 *p = a;
1091 }
1092 }
1093 #endif
1094 else {
1095 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
1096 (pktlen+1)>>1);
1097 }
1098 skb->protocol = eth_type_trans(skb, dev);
1099 netif_rx(skb);
1100 dev->stats.rx_packets++;
1101 dev->stats.rx_bytes += pktlen;
1102 if (!(rsr & PhyPkt))
1103 dev->stats.multicast++;
1104 }
1105 } else { /* bad packet */
1106 pr_debug("rsr=%#02x\n", rsr);
1107 }
1108 if (rsr & PktTooLong) {
1109 dev->stats.rx_frame_errors++;
1110 pr_debug("%s: Packet too long\n", dev->name);
1111 }
1112 if (rsr & CRCErr) {
1113 dev->stats.rx_crc_errors++;
1114 pr_debug("%s: CRC error\n", dev->name);
1115 }
1116 if (rsr & AlignErr) {
1117 dev->stats.rx_fifo_errors++; /* okay ? */
1118 pr_debug("%s: Alignment error\n", dev->name);
1119 }
1120
1121 /* clear the received/dropped/error packet */
1122 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
1123
1124 /* get the new ethernet status */
1125 eth_status = GetByte(XIRCREG_ESR);
1126 }
1127 if (rx_status & 0x10) { /* Receive overrun */
1128 dev->stats.rx_over_errors++;
1129 PutByte(XIRCREG_CR, ClearRxOvrun);
1130 pr_debug("receive overrun cleared\n");
1131 }
1132
1133 /***** transmit section ******/
1134 if (int_status & PktTxed) {
1135 unsigned n, nn;
1136
1137 n = lp->last_ptr_value;
1138 nn = GetByte(XIRCREG0_PTR);
1139 lp->last_ptr_value = nn;
1140 if (nn < n) /* rollover */
1141 dev->stats.tx_packets += 256 - n;
1142 else if (n == nn) { /* happens sometimes - don't know why */
1143 pr_debug("PTR not changed?\n");
1144 } else
1145 dev->stats.tx_packets += lp->last_ptr_value - n;
1146 netif_wake_queue(dev);
1147 }
1148 if (tx_status & 0x0002) { /* Execessive collissions */
1149 pr_debug("tx restarted due to execssive collissions\n");
1150 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
1151 }
1152 if (tx_status & 0x0040)
1153 dev->stats.tx_aborted_errors++;
1154
1155 /* recalculate our work chunk so that we limit the duration of this
1156 * ISR to about 1/10 of a second.
1157 * Calculate only if we received a reasonable amount of bytes.
1158 */
1159 if (bytes_rcvd > 1000) {
1160 u_long duration = jiffies - start_ticks;
1161
1162 if (duration >= HZ/10) { /* if more than about 1/10 second */
1163 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
1164 if (maxrx_bytes < 2000)
1165 maxrx_bytes = 2000;
1166 else if (maxrx_bytes > 22000)
1167 maxrx_bytes = 22000;
1168 pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n",
1169 maxrx_bytes, bytes_rcvd, duration);
1170 } else if (!duration && maxrx_bytes < 22000) {
1171 /* now much faster */
1172 maxrx_bytes += 2000;
1173 if (maxrx_bytes > 22000)
1174 maxrx_bytes = 22000;
1175 pr_debug("set maxrx=%u\n", maxrx_bytes);
1176 }
1177 }
1178
1179 leave:
1180 if (lockup_hack) {
1181 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
1182 goto loop_entry;
1183 }
1184 SelectPage(saved_page);
1185 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
1186 /* Instead of dropping packets during a receive, we could
1187 * force an interrupt with this command:
1188 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
1189 */
1190 return IRQ_HANDLED;
1191 } /* xirc2ps_interrupt */
1192
1193 /*====================================================================*/
1194
1195 static void
1196 xirc2ps_tx_timeout_task(struct work_struct *work)
1197 {
1198 local_info_t *local =
1199 container_of(work, local_info_t, tx_timeout_task);
1200 struct net_device *dev = local->dev;
1201 /* reset the card */
1202 do_reset(dev,1);
1203 dev->trans_start = jiffies; /* prevent tx timeout */
1204 netif_wake_queue(dev);
1205 }
1206
1207 static void
1208 xirc_tx_timeout(struct net_device *dev)
1209 {
1210 local_info_t *lp = netdev_priv(dev);
1211 dev->stats.tx_errors++;
1212 netdev_notice(dev, "transmit timed out\n");
1213 schedule_work(&lp->tx_timeout_task);
1214 }
1215
1216 static netdev_tx_t
1217 do_start_xmit(struct sk_buff *skb, struct net_device *dev)
1218 {
1219 local_info_t *lp = netdev_priv(dev);
1220 unsigned int ioaddr = dev->base_addr;
1221 int okay;
1222 unsigned freespace;
1223 unsigned pktlen = skb->len;
1224
1225 pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n",
1226 skb, dev, pktlen);
1227
1228
1229 /* adjust the packet length to min. required
1230 * and hope that the buffer is large enough
1231 * to provide some random data.
1232 * fixme: For Mohawk we can change this by sending
1233 * a larger packetlen than we actually have; the chip will
1234 * pad this in his buffer with random bytes
1235 */
1236 if (pktlen < ETH_ZLEN)
1237 {
1238 if (skb_padto(skb, ETH_ZLEN))
1239 return NETDEV_TX_OK;
1240 pktlen = ETH_ZLEN;
1241 }
1242
1243 netif_stop_queue(dev);
1244 SelectPage(0);
1245 PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
1246 freespace = GetWord(XIRCREG0_TSO);
1247 okay = freespace & 0x8000;
1248 freespace &= 0x7fff;
1249 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
1250 okay = pktlen +2 < freespace;
1251 pr_debug("%s: avail. tx space=%u%s\n",
1252 dev->name, freespace, okay ? " (okay)":" (not enough)");
1253 if (!okay) { /* not enough space */
1254 return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */
1255 }
1256 /* send the packet */
1257 PutWord(XIRCREG_EDP, (u_short)pktlen);
1258 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
1259 if (pktlen & 1)
1260 PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
1261
1262 if (lp->mohawk)
1263 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
1264
1265 dev_kfree_skb (skb);
1266 dev->stats.tx_bytes += pktlen;
1267 netif_start_queue(dev);
1268 return NETDEV_TX_OK;
1269 }
1270
1271 struct set_address_info {
1272 int reg_nr;
1273 int page_nr;
1274 int mohawk;
1275 unsigned int ioaddr;
1276 };
1277
1278 static void set_address(struct set_address_info *sa_info, char *addr)
1279 {
1280 unsigned int ioaddr = sa_info->ioaddr;
1281 int i;
1282
1283 for (i = 0; i < 6; i++) {
1284 if (sa_info->reg_nr > 15) {
1285 sa_info->reg_nr = 8;
1286 sa_info->page_nr++;
1287 SelectPage(sa_info->page_nr);
1288 }
1289 if (sa_info->mohawk)
1290 PutByte(sa_info->reg_nr++, addr[5 - i]);
1291 else
1292 PutByte(sa_info->reg_nr++, addr[i]);
1293 }
1294 }
1295
1296 /****************
1297 * Set all addresses: This first one is the individual address,
1298 * the next 9 addresses are taken from the multicast list and
1299 * the rest is filled with the individual address.
1300 */
1301 static void set_addresses(struct net_device *dev)
1302 {
1303 unsigned int ioaddr = dev->base_addr;
1304 local_info_t *lp = netdev_priv(dev);
1305 struct netdev_hw_addr *ha;
1306 struct set_address_info sa_info;
1307 int i;
1308
1309 /*
1310 * Setup the info structure so that by first set_address call it will do
1311 * SelectPage with the right page number. Hence these ones here.
1312 */
1313 sa_info.reg_nr = 15 + 1;
1314 sa_info.page_nr = 0x50 - 1;
1315 sa_info.mohawk = lp->mohawk;
1316 sa_info.ioaddr = ioaddr;
1317
1318 set_address(&sa_info, dev->dev_addr);
1319 i = 0;
1320 netdev_for_each_mc_addr(ha, dev) {
1321 if (i++ == 9)
1322 break;
1323 set_address(&sa_info, ha->addr);
1324 }
1325 while (i++ < 9)
1326 set_address(&sa_info, dev->dev_addr);
1327 SelectPage(0);
1328 }
1329
1330 /****************
1331 * Set or clear the multicast filter for this adaptor.
1332 * We can filter up to 9 addresses, if more are requested we set
1333 * multicast promiscuous mode.
1334 */
1335
1336 static void
1337 set_multicast_list(struct net_device *dev)
1338 {
1339 unsigned int ioaddr = dev->base_addr;
1340 unsigned value;
1341
1342 SelectPage(0x42);
1343 value = GetByte(XIRCREG42_SWC1) & 0xC0;
1344
1345 if (dev->flags & IFF_PROMISC) { /* snoop */
1346 PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */
1347 } else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) {
1348 PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */
1349 } else if (!netdev_mc_empty(dev)) {
1350 /* the chip can filter 9 addresses perfectly */
1351 PutByte(XIRCREG42_SWC1, value | 0x01);
1352 SelectPage(0x40);
1353 PutByte(XIRCREG40_CMD0, Offline);
1354 set_addresses(dev);
1355 SelectPage(0x40);
1356 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1357 } else { /* standard usage */
1358 PutByte(XIRCREG42_SWC1, value | 0x00);
1359 }
1360 SelectPage(0);
1361 }
1362
1363 static int
1364 do_config(struct net_device *dev, struct ifmap *map)
1365 {
1366 local_info_t *local = netdev_priv(dev);
1367
1368 pr_debug("do_config(%p)\n", dev);
1369 if (map->port != 255 && map->port != dev->if_port) {
1370 if (map->port > 4)
1371 return -EINVAL;
1372 if (!map->port) {
1373 local->probe_port = 1;
1374 dev->if_port = 1;
1375 } else {
1376 local->probe_port = 0;
1377 dev->if_port = map->port;
1378 }
1379 netdev_info(dev, "switching to %s port\n", if_names[dev->if_port]);
1380 do_reset(dev,1); /* not the fine way :-) */
1381 }
1382 return 0;
1383 }
1384
1385 /****************
1386 * Open the driver
1387 */
1388 static int
1389 do_open(struct net_device *dev)
1390 {
1391 local_info_t *lp = netdev_priv(dev);
1392 struct pcmcia_device *link = lp->p_dev;
1393
1394 dev_dbg(&link->dev, "do_open(%p)\n", dev);
1395
1396 /* Check that the PCMCIA card is still here. */
1397 /* Physical device present signature. */
1398 if (!pcmcia_dev_present(link))
1399 return -ENODEV;
1400
1401 /* okay */
1402 link->open++;
1403
1404 netif_start_queue(dev);
1405 do_reset(dev,1);
1406
1407 return 0;
1408 }
1409
1410 static void netdev_get_drvinfo(struct net_device *dev,
1411 struct ethtool_drvinfo *info)
1412 {
1413 strlcpy(info->driver, "xirc2ps_cs", sizeof(info->driver));
1414 snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx",
1415 dev->base_addr);
1416 }
1417
1418 static const struct ethtool_ops netdev_ethtool_ops = {
1419 .get_drvinfo = netdev_get_drvinfo,
1420 };
1421
1422 static int
1423 do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1424 {
1425 local_info_t *local = netdev_priv(dev);
1426 unsigned int ioaddr = dev->base_addr;
1427 struct mii_ioctl_data *data = if_mii(rq);
1428
1429 pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
1430 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
1431 data->phy_id, data->reg_num, data->val_in, data->val_out);
1432
1433 if (!local->mohawk)
1434 return -EOPNOTSUPP;
1435
1436 switch(cmd) {
1437 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
1438 data->phy_id = 0; /* we have only this address */
1439 /* fall through */
1440 case SIOCGMIIREG: /* Read the specified MII register. */
1441 data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f,
1442 data->reg_num & 0x1f);
1443 break;
1444 case SIOCSMIIREG: /* Write the specified MII register */
1445 mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in,
1446 16);
1447 break;
1448 default:
1449 return -EOPNOTSUPP;
1450 }
1451 return 0;
1452 }
1453
1454 static void
1455 hardreset(struct net_device *dev)
1456 {
1457 local_info_t *local = netdev_priv(dev);
1458 unsigned int ioaddr = dev->base_addr;
1459
1460 SelectPage(4);
1461 udelay(1);
1462 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1463 msleep(40); /* wait 40 msec */
1464 if (local->mohawk)
1465 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
1466 else
1467 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
1468 msleep(20); /* wait 20 msec */
1469 }
1470
1471 static void
1472 do_reset(struct net_device *dev, int full)
1473 {
1474 local_info_t *local = netdev_priv(dev);
1475 unsigned int ioaddr = dev->base_addr;
1476 unsigned value;
1477
1478 pr_debug("%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
1479
1480 hardreset(dev);
1481 PutByte(XIRCREG_CR, SoftReset); /* set */
1482 msleep(20); /* wait 20 msec */
1483 PutByte(XIRCREG_CR, 0); /* clear */
1484 msleep(40); /* wait 40 msec */
1485 if (local->mohawk) {
1486 SelectPage(4);
1487 /* set pin GP1 and GP2 to output (0x0c)
1488 * set GP1 to low to power up the ML6692 (0x00)
1489 * set GP2 to high to power up the 10Mhz chip (0x02)
1490 */
1491 PutByte(XIRCREG4_GPR0, 0x0e);
1492 }
1493
1494 /* give the circuits some time to power up */
1495 msleep(500); /* about 500ms */
1496
1497 local->last_ptr_value = 0;
1498 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
1499 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
1500
1501 if (local->probe_port) {
1502 if (!local->mohawk) {
1503 SelectPage(4);
1504 PutByte(XIRCREG4_GPR0, 4);
1505 local->probe_port = 0;
1506 }
1507 } else if (dev->if_port == 2) { /* enable 10Base2 */
1508 SelectPage(0x42);
1509 PutByte(XIRCREG42_SWC1, 0xC0);
1510 } else { /* enable 10BaseT */
1511 SelectPage(0x42);
1512 PutByte(XIRCREG42_SWC1, 0x80);
1513 }
1514 msleep(40); /* wait 40 msec to let it complete */
1515
1516 #if 0
1517 {
1518 SelectPage(0);
1519 value = GetByte(XIRCREG_ESR); /* read the ESR */
1520 pr_debug("%s: ESR is: %#02x\n", dev->name, value);
1521 }
1522 #endif
1523
1524 /* setup the ECR */
1525 SelectPage(1);
1526 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
1527 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
1528 value = GetByte(XIRCREG1_ECR);
1529 #if 0
1530 if (local->mohawk)
1531 value |= DisableLinkPulse;
1532 PutByte(XIRCREG1_ECR, value);
1533 #endif
1534 pr_debug("%s: ECR is: %#02x\n", dev->name, value);
1535
1536 SelectPage(0x42);
1537 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
1538
1539 if (local->silicon != 1) {
1540 /* set the local memory dividing line.
1541 * The comments in the sample code say that this is only
1542 * settable with the scipper version 2 which is revision 0.
1543 * Always for CE3 cards
1544 */
1545 SelectPage(2);
1546 PutWord(XIRCREG2_RBS, 0x2000);
1547 }
1548
1549 if (full)
1550 set_addresses(dev);
1551
1552 /* Hardware workaround:
1553 * The receive byte pointer after reset is off by 1 so we need
1554 * to move the offset pointer back to 0.
1555 */
1556 SelectPage(0);
1557 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
1558
1559 /* setup MAC IMRs and clear status registers */
1560 SelectPage(0x40); /* Bit 7 ... bit 0 */
1561 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
1562 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1563 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
1564 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
1565 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1566 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
1567
1568 if (full && local->mohawk && init_mii(dev)) {
1569 if (dev->if_port == 4 || local->dingo || local->new_mii) {
1570 netdev_info(dev, "MII selected\n");
1571 SelectPage(2);
1572 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
1573 msleep(20);
1574 } else {
1575 netdev_info(dev, "MII detected; using 10mbs\n");
1576 SelectPage(0x42);
1577 if (dev->if_port == 2) /* enable 10Base2 */
1578 PutByte(XIRCREG42_SWC1, 0xC0);
1579 else /* enable 10BaseT */
1580 PutByte(XIRCREG42_SWC1, 0x80);
1581 msleep(40); /* wait 40 msec to let it complete */
1582 }
1583 if (full_duplex)
1584 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
1585 } else { /* No MII */
1586 SelectPage(0);
1587 value = GetByte(XIRCREG_ESR); /* read the ESR */
1588 dev->if_port = (value & MediaSelect) ? 1 : 2;
1589 }
1590
1591 /* configure the LEDs */
1592 SelectPage(2);
1593 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
1594 PutByte(XIRCREG2_LED, 0x3b);
1595 else /* Coax: Not-Collision and Activity */
1596 PutByte(XIRCREG2_LED, 0x3a);
1597
1598 if (local->dingo)
1599 PutByte(0x0b, 0x04); /* 100 Mbit LED */
1600
1601 /* enable receiver and put the mac online */
1602 if (full) {
1603 set_multicast_list(dev);
1604 SelectPage(0x40);
1605 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1606 }
1607
1608 /* setup Ethernet IMR and enable interrupts */
1609 SelectPage(1);
1610 PutByte(XIRCREG1_IMR0, 0xff);
1611 udelay(1);
1612 SelectPage(0);
1613 PutByte(XIRCREG_CR, EnableIntr);
1614 if (local->modem && !local->dingo) { /* do some magic */
1615 if (!(GetByte(0x10) & 0x01))
1616 PutByte(0x10, 0x11); /* unmask master-int bit */
1617 }
1618
1619 if (full)
1620 netdev_info(dev, "media %s, silicon revision %d\n",
1621 if_names[dev->if_port], local->silicon);
1622 /* We should switch back to page 0 to avoid a bug in revision 0
1623 * where regs with offset below 8 can't be read after an access
1624 * to the MAC registers */
1625 SelectPage(0);
1626 }
1627
1628 /****************
1629 * Initialize the Media-Independent-Interface
1630 * Returns: True if we have a good MII
1631 */
1632 static int
1633 init_mii(struct net_device *dev)
1634 {
1635 local_info_t *local = netdev_priv(dev);
1636 unsigned int ioaddr = dev->base_addr;
1637 unsigned control, status, linkpartner;
1638 int i;
1639
1640 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
1641 dev->if_port = if_port;
1642 local->probe_port = 0;
1643 return 1;
1644 }
1645
1646 status = mii_rd(ioaddr, 0, 1);
1647 if ((status & 0xff00) != 0x7800)
1648 return 0; /* No MII */
1649
1650 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
1651
1652 if (local->probe_port)
1653 control = 0x1000; /* auto neg */
1654 else if (dev->if_port == 4)
1655 control = 0x2000; /* no auto neg, 100mbs mode */
1656 else
1657 control = 0x0000; /* no auto neg, 10mbs mode */
1658 mii_wr(ioaddr, 0, 0, control, 16);
1659 udelay(100);
1660 control = mii_rd(ioaddr, 0, 0);
1661
1662 if (control & 0x0400) {
1663 netdev_notice(dev, "can't take PHY out of isolation mode\n");
1664 local->probe_port = 0;
1665 return 0;
1666 }
1667
1668 if (local->probe_port) {
1669 /* according to the DP83840A specs the auto negotiation process
1670 * may take up to 3.5 sec, so we use this also for our ML6692
1671 * Fixme: Better to use a timer here!
1672 */
1673 for (i=0; i < 35; i++) {
1674 msleep(100); /* wait 100 msec */
1675 status = mii_rd(ioaddr, 0, 1);
1676 if ((status & 0x0020) && (status & 0x0004))
1677 break;
1678 }
1679
1680 if (!(status & 0x0020)) {
1681 netdev_info(dev, "autonegotiation failed; using 10mbs\n");
1682 if (!local->new_mii) {
1683 control = 0x0000;
1684 mii_wr(ioaddr, 0, 0, control, 16);
1685 udelay(100);
1686 SelectPage(0);
1687 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
1688 }
1689 } else {
1690 linkpartner = mii_rd(ioaddr, 0, 5);
1691 netdev_info(dev, "MII link partner: %04x\n", linkpartner);
1692 if (linkpartner & 0x0080) {
1693 dev->if_port = 4;
1694 } else
1695 dev->if_port = 1;
1696 }
1697 }
1698
1699 return 1;
1700 }
1701
1702 static void
1703 do_powerdown(struct net_device *dev)
1704 {
1705
1706 unsigned int ioaddr = dev->base_addr;
1707
1708 pr_debug("do_powerdown(%p)\n", dev);
1709
1710 SelectPage(4);
1711 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1712 SelectPage(0);
1713 }
1714
1715 static int
1716 do_stop(struct net_device *dev)
1717 {
1718 unsigned int ioaddr = dev->base_addr;
1719 local_info_t *lp = netdev_priv(dev);
1720 struct pcmcia_device *link = lp->p_dev;
1721
1722 dev_dbg(&link->dev, "do_stop(%p)\n", dev);
1723
1724 if (!link)
1725 return -ENODEV;
1726
1727 netif_stop_queue(dev);
1728
1729 SelectPage(0);
1730 PutByte(XIRCREG_CR, 0); /* disable interrupts */
1731 SelectPage(0x01);
1732 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
1733 SelectPage(4);
1734 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1735 SelectPage(0);
1736
1737 link->open--;
1738 return 0;
1739 }
1740
1741 static const struct pcmcia_device_id xirc2ps_ids[] = {
1742 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a),
1743 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a),
1744 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),
1745 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),
1746 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),
1747 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),
1748 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),
1749 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),
1750 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a),
1751 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2),
1752 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37),
1753 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073),
1754 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3),
1755 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609),
1756 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46),
1757 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2),
1758 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769),
1759 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db),
1760 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf),
1761 /* also matches CFE-10 cards! */
1762 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */
1763 PCMCIA_DEVICE_NULL,
1764 };
1765 MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids);
1766
1767
1768 static struct pcmcia_driver xirc2ps_cs_driver = {
1769 .owner = THIS_MODULE,
1770 .name = "xirc2ps_cs",
1771 .probe = xirc2ps_probe,
1772 .remove = xirc2ps_detach,
1773 .id_table = xirc2ps_ids,
1774 .suspend = xirc2ps_suspend,
1775 .resume = xirc2ps_resume,
1776 };
1777 module_pcmcia_driver(xirc2ps_cs_driver);
1778
1779 #ifndef MODULE
1780 static int __init setup_xirc2ps_cs(char *str)
1781 {
1782 /* if_port, full_duplex, do_sound, lockup_hack
1783 */
1784 int ints[10] = { -1 };
1785
1786 str = get_options(str, 9, ints);
1787
1788 #define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
1789 MAYBE_SET(if_port, 3);
1790 MAYBE_SET(full_duplex, 4);
1791 MAYBE_SET(do_sound, 5);
1792 MAYBE_SET(lockup_hack, 6);
1793 #undef MAYBE_SET
1794
1795 return 1;
1796 }
1797
1798 __setup("xirc2ps_cs=", setup_xirc2ps_cs);
1799 #endif
Linux kernel - Deliverables
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