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

source code of linux/drivers/net/ethernet/xircom/xirc2ps_cs.c