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Massive net driver const-ification.
[usb.git] / drivers / net / pcmcia / xirc2ps_cs.c
blobeed496803fe40726eca6449f20b223d56b4999d5
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 #include <linux/module.h>
67 #include <linux/kernel.h>
68 #include <linux/init.h>
69 #include <linux/ptrace.h>
70 #include <linux/slab.h>
71 #include <linux/string.h>
72 #include <linux/timer.h>
73 #include <linux/interrupt.h>
74 #include <linux/in.h>
75 #include <linux/delay.h>
76 #include <linux/ethtool.h>
77 #include <linux/netdevice.h>
78 #include <linux/etherdevice.h>
79 #include <linux/skbuff.h>
80 #include <linux/if_arp.h>
81 #include <linux/ioport.h>
82 #include <linux/bitops.h>
83
84 #include <pcmcia/cs_types.h>
85 #include <pcmcia/cs.h>
86 #include <pcmcia/cistpl.h>
87 #include <pcmcia/cisreg.h>
88 #include <pcmcia/ciscode.h>
89
90 #include <asm/io.h>
91 #include <asm/system.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 /****************
214 * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
215 * you do not define PCMCIA_DEBUG at all, all the debug code will be
216 * left out. If you compile with PCMCIA_DEBUG=0, the debug code will
217 * be present but disabled -- but it can then be enabled for specific
218 * modules at load time with a 'pc_debug=#' option to insmod.
219 */
220 #ifdef PCMCIA_DEBUG
221 static int pc_debug = PCMCIA_DEBUG;
222 module_param(pc_debug, int, 0);
223 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KDBG_XIRC args)
224 #else
225 #define DEBUG(n, args...)
226 #endif
227
228 #define KDBG_XIRC KERN_DEBUG "xirc2ps_cs: "
229 #define KERR_XIRC KERN_ERR "xirc2ps_cs: "
230 #define KWRN_XIRC KERN_WARNING "xirc2ps_cs: "
231 #define KNOT_XIRC KERN_NOTICE "xirc2ps_cs: "
232 #define KINF_XIRC KERN_INFO "xirc2ps_cs: "
233
234 /* card types */
235 #define XIR_UNKNOWN 0 /* unknown: not supported */
236 #define XIR_CE 1 /* (prodid 1) different hardware: not supported */
237 #define XIR_CE2 2 /* (prodid 2) */
238 #define XIR_CE3 3 /* (prodid 3) */
239 #define XIR_CEM 4 /* (prodid 1) different hardware: not supported */
240 #define XIR_CEM2 5 /* (prodid 2) */
241 #define XIR_CEM3 6 /* (prodid 3) */
242 #define XIR_CEM33 7 /* (prodid 4) */
243 #define XIR_CEM56M 8 /* (prodid 5) */
244 #define XIR_CEM56 9 /* (prodid 6) */
245 #define XIR_CM28 10 /* (prodid 3) modem only: not supported here */
246 #define XIR_CM33 11 /* (prodid 4) modem only: not supported here */
247 #define XIR_CM56 12 /* (prodid 5) modem only: not supported here */
248 #define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */
249 #define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */
250 /*====================================================================*/
251
252 /* Module parameters */
253
254 MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver");
255 MODULE_LICENSE("Dual MPL/GPL");
256
257 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
258
259 INT_MODULE_PARM(if_port, 0);
260 INT_MODULE_PARM(full_duplex, 0);
261 INT_MODULE_PARM(do_sound, 1);
262 INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */
263
264 /*====================================================================*/
265
266 /* We do not process more than these number of bytes during one
267 * interrupt. (Of course we receive complete packets, so this is not
268 * an exact value).
269 * Something between 2000..22000; first value gives best interrupt latency,
270 * the second enables the usage of the complete on-chip buffer. We use the
271 * high value as the initial value.
272 */
273 static unsigned maxrx_bytes = 22000;
274
275 /* MII management prototypes */
276 static void mii_idle(kio_addr_t ioaddr);
277 static void mii_putbit(kio_addr_t ioaddr, unsigned data);
278 static int mii_getbit(kio_addr_t ioaddr);
279 static void mii_wbits(kio_addr_t ioaddr, unsigned data, int len);
280 static unsigned mii_rd(kio_addr_t ioaddr, u_char phyaddr, u_char phyreg);
281 static void mii_wr(kio_addr_t ioaddr, u_char phyaddr, u_char phyreg,
282 unsigned data, int len);
283
284 /*
285 * The event() function is this driver's Card Services event handler.
286 * It will be called by Card Services when an appropriate card status
287 * event is received. The config() and release() entry points are
288 * used to configure or release a socket, in response to card insertion
289 * and ejection events. They are invoked from the event handler.
290 */
291
292 static int has_ce2_string(dev_link_t * link);
293 static void xirc2ps_config(dev_link_t * link);
294 static void xirc2ps_release(dev_link_t * link);
295
296 /****************
297 * The attach() and detach() entry points are used to create and destroy
298 * "instances" of the driver, where each instance represents everything
299 * needed to manage one actual PCMCIA card.
300 */
301
302 static void xirc2ps_detach(struct pcmcia_device *p_dev);
303
304 /****************
305 * You'll also need to prototype all the functions that will actually
306 * be used to talk to your device. See 'pcmem_cs' for a good example
307 * of a fully self-sufficient driver; the other drivers rely more or
308 * less on other parts of the kernel.
309 */
310
311 static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id, struct pt_regs *regs);
312
313 /****************
314 * A linked list of "instances" of the device. Each actual
315 * PCMCIA card corresponds to one device instance, and is described
316 * by one dev_link_t structure (defined in ds.h).
317 *
318 * You may not want to use a linked list for this -- for example, the
319 * memory card driver uses an array of dev_link_t pointers, where minor
320 * device numbers are used to derive the corresponding array index.
321 */
322
323 /****************
324 * A driver needs to provide a dev_node_t structure for each device
325 * on a card. In some cases, there is only one device per card (for
326 * example, ethernet cards, modems). In other cases, there may be
327 * many actual or logical devices (SCSI adapters, memory cards with
328 * multiple partitions). The dev_node_t structures need to be kept
329 * in a linked list starting at the 'dev' field of a dev_link_t
330 * structure. We allocate them in the card's private data structure,
331 * because they generally can't be allocated dynamically.
332 */
333
334 typedef struct local_info_t {
335 dev_link_t link;
336 dev_node_t node;
337 struct net_device_stats stats;
338 int card_type;
339 int probe_port;
340 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */
341 int mohawk; /* a CE3 type card */
342 int dingo; /* a CEM56 type card */
343 int new_mii; /* has full 10baseT/100baseT MII */
344 int modem; /* is a multi function card (i.e with a modem) */
345 void __iomem *dingo_ccr; /* only used for CEM56 cards */
346 unsigned last_ptr_value; /* last packets transmitted value */
347 const char *manf_str;
348 } local_info_t;
349
350 /****************
351 * Some more prototypes
352 */
353 static int do_start_xmit(struct sk_buff *skb, struct net_device *dev);
354 static void do_tx_timeout(struct net_device *dev);
355 static struct net_device_stats *do_get_stats(struct net_device *dev);
356 static void set_addresses(struct net_device *dev);
357 static void set_multicast_list(struct net_device *dev);
358 static int set_card_type(dev_link_t *link, const void *s);
359 static int do_config(struct net_device *dev, struct ifmap *map);
360 static int do_open(struct net_device *dev);
361 static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
362 static struct ethtool_ops netdev_ethtool_ops;
363 static void hardreset(struct net_device *dev);
364 static void do_reset(struct net_device *dev, int full);
365 static int init_mii(struct net_device *dev);
366 static void do_powerdown(struct net_device *dev);
367 static int do_stop(struct net_device *dev);
368
369 /*=============== Helper functions =========================*/
370 static int
371 first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
372 {
373 int err;
374
375 if ((err = pcmcia_get_first_tuple(handle, tuple)) == 0 &&
376 (err = pcmcia_get_tuple_data(handle, tuple)) == 0)
377 err = pcmcia_parse_tuple(handle, tuple, parse);
378 return err;
379 }
380
381 static int
382 next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
383 {
384 int err;
385
386 if ((err = pcmcia_get_next_tuple(handle, tuple)) == 0 &&
387 (err = pcmcia_get_tuple_data(handle, tuple)) == 0)
388 err = pcmcia_parse_tuple(handle, tuple, parse);
389 return err;
390 }
391
392 #define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR)
393 #define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))
394 #define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))
395 #define PutByte(reg,value) outb((value), ioaddr+(reg))
396 #define PutWord(reg,value) outw((value), ioaddr+(reg))
397
398 /*====== Functions used for debugging =================================*/
399 #if defined(PCMCIA_DEBUG) && 0 /* reading regs may change system status */
400 static void
401 PrintRegisters(struct net_device *dev)
402 {
403 kio_addr_t ioaddr = dev->base_addr;
404
405 if (pc_debug > 1) {
406 int i, page;
407
408 printk(KDBG_XIRC "Register common: ");
409 for (i = 0; i < 8; i++)
410 printk(" %2.2x", GetByte(i));
411 printk("\n");
412 for (page = 0; page <= 8; page++) {
413 printk(KDBG_XIRC "Register page %2x: ", page);
414 SelectPage(page);
415 for (i = 8; i < 16; i++)
416 printk(" %2.2x", GetByte(i));
417 printk("\n");
418 }
419 for (page=0x40 ; page <= 0x5f; page++) {
420 if (page == 0x43 || (page >= 0x46 && page <= 0x4f)
421 || (page >= 0x51 && page <=0x5e))
422 continue;
423 printk(KDBG_XIRC "Register page %2x: ", page);
424 SelectPage(page);
425 for (i = 8; i < 16; i++)
426 printk(" %2.2x", GetByte(i));
427 printk("\n");
428 }
429 }
430 }
431 #endif /* PCMCIA_DEBUG */
432
433 /*============== MII Management functions ===============*/
434
435 /****************
436 * Turn around for read
437 */
438 static void
439 mii_idle(kio_addr_t ioaddr)
440 {
441 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */
442 udelay(1);
443 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */
444 udelay(1);
445 }
446
447 /****************
448 * Write a bit to MDI/O
449 */
450 static void
451 mii_putbit(kio_addr_t ioaddr, unsigned data)
452 {
453 #if 1
454 if (data) {
455 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */
456 udelay(1);
457 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */
458 udelay(1);
459 } else {
460 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */
461 udelay(1);
462 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */
463 udelay(1);
464 }
465 #else
466 if (data) {
467 PutWord(XIRCREG2_GPR2-1, 0x0e0e);
468 udelay(1);
469 PutWord(XIRCREG2_GPR2-1, 0x0f0f);
470 udelay(1);
471 } else {
472 PutWord(XIRCREG2_GPR2-1, 0x0c0c);
473 udelay(1);
474 PutWord(XIRCREG2_GPR2-1, 0x0d0d);
475 udelay(1);
476 }
477 #endif
478 }
479
480 /****************
481 * Get a bit from MDI/O
482 */
483 static int
484 mii_getbit(kio_addr_t ioaddr)
485 {
486 unsigned d;
487
488 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */
489 udelay(1);
490 d = GetByte(XIRCREG2_GPR2); /* read MDIO */
491 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */
492 udelay(1);
493 return d & 0x20; /* read MDIO */
494 }
495
496 static void
497 mii_wbits(kio_addr_t ioaddr, unsigned data, int len)
498 {
499 unsigned m = 1 << (len-1);
500 for (; m; m >>= 1)
501 mii_putbit(ioaddr, data & m);
502 }
503
504 static unsigned
505 mii_rd(kio_addr_t ioaddr, u_char phyaddr, u_char phyreg)
506 {
507 int i;
508 unsigned data=0, m;
509
510 SelectPage(2);
511 for (i=0; i < 32; i++) /* 32 bit preamble */
512 mii_putbit(ioaddr, 1);
513 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */
514 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
515 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */
516 mii_idle(ioaddr); /* turn around */
517 mii_getbit(ioaddr);
518
519 for (m = 1<<15; m; m >>= 1)
520 if (mii_getbit(ioaddr))
521 data |= m;
522 mii_idle(ioaddr);
523 return data;
524 }
525
526 static void
527 mii_wr(kio_addr_t ioaddr, u_char phyaddr, u_char phyreg, unsigned data, int len)
528 {
529 int i;
530
531 SelectPage(2);
532 for (i=0; i < 32; i++) /* 32 bit preamble */
533 mii_putbit(ioaddr, 1);
534 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */
535 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
536 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */
537 mii_putbit(ioaddr, 1); /* turn around */
538 mii_putbit(ioaddr, 0);
539 mii_wbits(ioaddr, data, len); /* And write the data */
540 mii_idle(ioaddr);
541 }
542
543 /*============= Main bulk of functions =========================*/
544
545 /****************
546 * xirc2ps_attach() creates an "instance" of the driver, allocating
547 * local data structures for one device. The device is registered
548 * with Card Services.
549 *
550 * The dev_link structure is initialized, but we don't actually
551 * configure the card at this point -- we wait until we receive a
552 * card insertion event.
553 */
554
555 static int
556 xirc2ps_attach(struct pcmcia_device *p_dev)
557 {
558 dev_link_t *link;
559 struct net_device *dev;
560 local_info_t *local;
561
562 DEBUG(0, "attach()\n");
563
564 /* Allocate the device structure */
565 dev = alloc_etherdev(sizeof(local_info_t));
566 if (!dev)
567 return -ENOMEM;
568 local = netdev_priv(dev);
569 link = &local->link;
570 link->priv = dev;
571
572 /* General socket configuration */
573 link->conf.Attributes = CONF_ENABLE_IRQ;
574 link->conf.Vcc = 50;
575 link->conf.IntType = INT_MEMORY_AND_IO;
576 link->conf.ConfigIndex = 1;
577 link->conf.Present = PRESENT_OPTION;
578 link->irq.Handler = xirc2ps_interrupt;
579 link->irq.Instance = dev;
580
581 /* Fill in card specific entries */
582 SET_MODULE_OWNER(dev);
583 dev->hard_start_xmit = &do_start_xmit;
584 dev->set_config = &do_config;
585 dev->get_stats = &do_get_stats;
586 dev->do_ioctl = &do_ioctl;
587 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
588 dev->set_multicast_list = &set_multicast_list;
589 dev->open = &do_open;
590 dev->stop = &do_stop;
591 #ifdef HAVE_TX_TIMEOUT
592 dev->tx_timeout = do_tx_timeout;
593 dev->watchdog_timeo = TX_TIMEOUT;
594 #endif
595
596 link->handle = p_dev;
597 p_dev->instance = link;
598
599 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
600 xirc2ps_config(link);
601
602 return 0;
603 } /* xirc2ps_attach */
604
605 /****************
606 * This deletes a driver "instance". The device is de-registered
607 * with Card Services. If it has been released, all local data
608 * structures are freed. Otherwise, the structures will be freed
609 * when the device is released.
610 */
611
612 static void
613 xirc2ps_detach(struct pcmcia_device *p_dev)
614 {
615 dev_link_t *link = dev_to_instance(p_dev);
616 struct net_device *dev = link->priv;
617
618 DEBUG(0, "detach(0x%p)\n", link);
619
620 if (link->dev)
621 unregister_netdev(dev);
622
623 if (link->state & DEV_CONFIG)
624 xirc2ps_release(link);
625
626 free_netdev(dev);
627 } /* xirc2ps_detach */
628
629 /****************
630 * Detect the type of the card. s is the buffer with the data of tuple 0x20
631 * Returns: 0 := not supported
632 * mediaid=11 and prodid=47
633 * Media-Id bits:
634 * Ethernet 0x01
635 * Tokenring 0x02
636 * Arcnet 0x04
637 * Wireless 0x08
638 * Modem 0x10
639 * GSM only 0x20
640 * Prod-Id bits:
641 * Pocket 0x10
642 * External 0x20
643 * Creditcard 0x40
644 * Cardbus 0x80
645 *
646 */
647 static int
648 set_card_type(dev_link_t *link, const void *s)
649 {
650 struct net_device *dev = link->priv;
651 local_info_t *local = netdev_priv(dev);
652 #ifdef PCMCIA_DEBUG
653 unsigned cisrev = ((const unsigned char *)s)[2];
654 #endif
655 unsigned mediaid= ((const unsigned char *)s)[3];
656 unsigned prodid = ((const unsigned char *)s)[4];
657
658 DEBUG(0, "cisrev=%02x mediaid=%02x prodid=%02x\n",
659 cisrev, mediaid, prodid);
660
661 local->mohawk = 0;
662 local->dingo = 0;
663 local->modem = 0;
664 local->card_type = XIR_UNKNOWN;
665 if (!(prodid & 0x40)) {
666 printk(KNOT_XIRC "Ooops: Not a creditcard\n");
667 return 0;
668 }
669 if (!(mediaid & 0x01)) {
670 printk(KNOT_XIRC "Not an Ethernet card\n");
671 return 0;
672 }
673 if (mediaid & 0x10) {
674 local->modem = 1;
675 switch(prodid & 15) {
676 case 1: local->card_type = XIR_CEM ; break;
677 case 2: local->card_type = XIR_CEM2 ; break;
678 case 3: local->card_type = XIR_CEM3 ; break;
679 case 4: local->card_type = XIR_CEM33 ; break;
680 case 5: local->card_type = XIR_CEM56M;
681 local->mohawk = 1;
682 break;
683 case 6:
684 case 7: /* 7 is the RealPort 10/56 */
685 local->card_type = XIR_CEM56 ;
686 local->mohawk = 1;
687 local->dingo = 1;
688 break;
689 }
690 } else {
691 switch(prodid & 15) {
692 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
693 break;
694 case 2: local->card_type = XIR_CE2; break;
695 case 3: local->card_type = XIR_CE3;
696 local->mohawk = 1;
697 break;
698 }
699 }
700 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
701 printk(KNOT_XIRC "Sorry, this is an old CE card\n");
702 return 0;
703 }
704 if (local->card_type == XIR_UNKNOWN)
705 printk(KNOT_XIRC "unknown card (mediaid=%02x prodid=%02x)\n",
706 mediaid, prodid);
707
708 return 1;
709 }
710
711 /****************
712 * There are some CE2 cards out which claim to be a CE card.
713 * This function looks for a "CE2" in the 3rd version field.
714 * Returns: true if this is a CE2
715 */
716 static int
717 has_ce2_string(dev_link_t * link)
718 {
719 client_handle_t handle = link->handle;
720 tuple_t tuple;
721 cisparse_t parse;
722 u_char buf[256];
723
724 tuple.Attributes = 0;
725 tuple.TupleData = buf;
726 tuple.TupleDataMax = 254;
727 tuple.TupleOffset = 0;
728 tuple.DesiredTuple = CISTPL_VERS_1;
729 if (!first_tuple(handle, &tuple, &parse) && parse.version_1.ns > 2) {
730 if (strstr(parse.version_1.str + parse.version_1.ofs[2], "CE2"))
731 return 1;
732 }
733 return 0;
734 }
735
736 /****************
737 * xirc2ps_config() is scheduled to run after a CARD_INSERTION event
738 * is received, to configure the PCMCIA socket, and to make the
739 * ethernet device available to the system.
740 */
741 static void
742 xirc2ps_config(dev_link_t * link)
743 {
744 client_handle_t handle = link->handle;
745 struct net_device *dev = link->priv;
746 local_info_t *local = netdev_priv(dev);
747 tuple_t tuple;
748 cisparse_t parse;
749 kio_addr_t ioaddr;
750 int err, i;
751 u_char buf[64];
752 cistpl_lan_node_id_t *node_id = (cistpl_lan_node_id_t*)parse.funce.data;
753 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
754
755 local->dingo_ccr = NULL;
756
757 DEBUG(0, "config(0x%p)\n", link);
758
759 /*
760 * This reads the card's CONFIG tuple to find its configuration
761 * registers.
762 */
763 tuple.Attributes = 0;
764 tuple.TupleData = buf;
765 tuple.TupleDataMax = 64;
766 tuple.TupleOffset = 0;
767
768 /* Is this a valid card */
769 tuple.DesiredTuple = CISTPL_MANFID;
770 if ((err=first_tuple(handle, &tuple, &parse))) {
771 printk(KNOT_XIRC "manfid not found in CIS\n");
772 goto failure;
773 }
774
775 switch(parse.manfid.manf) {
776 case MANFID_XIRCOM:
777 local->manf_str = "Xircom";
778 break;
779 case MANFID_ACCTON:
780 local->manf_str = "Accton";
781 break;
782 case MANFID_COMPAQ:
783 case MANFID_COMPAQ2:
784 local->manf_str = "Compaq";
785 break;
786 case MANFID_INTEL:
787 local->manf_str = "Intel";
788 break;
789 case MANFID_TOSHIBA:
790 local->manf_str = "Toshiba";
791 break;
792 default:
793 printk(KNOT_XIRC "Unknown Card Manufacturer ID: 0x%04x\n",
794 (unsigned)parse.manfid.manf);
795 goto failure;
796 }
797 DEBUG(0, "found %s card\n", local->manf_str);
798
799 if (!set_card_type(link, buf)) {
800 printk(KNOT_XIRC "this card is not supported\n");
801 goto failure;
802 }
803
804 /* get configuration stuff */
805 tuple.DesiredTuple = CISTPL_CONFIG;
806 if ((err=first_tuple(handle, &tuple, &parse)))
807 goto cis_error;
808 link->conf.ConfigBase = parse.config.base;
809 link->conf.Present = parse.config.rmask[0];
810
811 /* get the ethernet address from the CIS */
812 tuple.DesiredTuple = CISTPL_FUNCE;
813 for (err = first_tuple(handle, &tuple, &parse); !err;
814 err = next_tuple(handle, &tuple, &parse)) {
815 /* Once I saw two CISTPL_FUNCE_LAN_NODE_ID entries:
816 * the first one with a length of zero the second correct -
817 * so I skip all entries with length 0 */
818 if (parse.funce.type == CISTPL_FUNCE_LAN_NODE_ID
819 && ((cistpl_lan_node_id_t *)parse.funce.data)->nb)
820 break;
821 }
822 if (err) { /* not found: try to get the node-id from tuple 0x89 */
823 tuple.DesiredTuple = 0x89; /* data layout looks like tuple 0x22 */
824 if ((err = pcmcia_get_first_tuple(handle, &tuple)) == 0 &&
825 (err = pcmcia_get_tuple_data(handle, &tuple)) == 0) {
826 if (tuple.TupleDataLen == 8 && *buf == CISTPL_FUNCE_LAN_NODE_ID)
827 memcpy(&parse, buf, 8);
828 else
829 err = -1;
830 }
831 }
832 if (err) { /* another try (James Lehmer's CE2 version 4.1)*/
833 tuple.DesiredTuple = CISTPL_FUNCE;
834 for (err = first_tuple(handle, &tuple, &parse); !err;
835 err = next_tuple(handle, &tuple, &parse)) {
836 if (parse.funce.type == 0x02 && parse.funce.data[0] == 1
837 && parse.funce.data[1] == 6 && tuple.TupleDataLen == 13) {
838 buf[1] = 4;
839 memcpy(&parse, buf+1, 8);
840 break;
841 }
842 }
843 }
844 if (err) {
845 printk(KNOT_XIRC "node-id not found in CIS\n");
846 goto failure;
847 }
848 node_id = (cistpl_lan_node_id_t *)parse.funce.data;
849 if (node_id->nb != 6) {
850 printk(KNOT_XIRC "malformed node-id in CIS\n");
851 goto failure;
852 }
853 for (i=0; i < 6; i++)
854 dev->dev_addr[i] = node_id->id[i];
855
856 /* Configure card */
857 link->state |= DEV_CONFIG;
858
859 link->io.IOAddrLines =10;
860 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
861 link->irq.Attributes = IRQ_HANDLE_PRESENT;
862 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
863 if (local->modem) {
864 int pass;
865
866 if (do_sound) {
867 link->conf.Attributes |= CONF_ENABLE_SPKR;
868 link->conf.Status |= CCSR_AUDIO_ENA;
869 }
870 link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED ;
871 link->io.NumPorts2 = 8;
872 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
873 if (local->dingo) {
874 /* Take the Modem IO port from the CIS and scan for a free
875 * Ethernet port */
876 link->io.NumPorts1 = 16; /* no Mako stuff anymore */
877 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
878 for (err = first_tuple(handle, &tuple, &parse); !err;
879 err = next_tuple(handle, &tuple, &parse)) {
880 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8) {
881 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
882 link->conf.ConfigIndex = cf->index ;
883 link->io.BasePort2 = cf->io.win[0].base;
884 link->io.BasePort1 = ioaddr;
885 if (!(err=pcmcia_request_io(link->handle, &link->io)))
886 goto port_found;
887 }
888 }
889 }
890 } else {
891 link->io.NumPorts1 = 18;
892 /* We do 2 passes here: The first one uses the regular mapping and
893 * the second tries again, thereby considering that the 32 ports are
894 * mirrored every 32 bytes. Actually we use a mirrored port for
895 * the Mako if (on the first pass) the COR bit 5 is set.
896 */
897 for (pass=0; pass < 2; pass++) {
898 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
899 for (err = first_tuple(handle, &tuple, &parse); !err;
900 err = next_tuple(handle, &tuple, &parse)){
901 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8){
902 link->conf.ConfigIndex = cf->index ;
903 link->io.BasePort2 = cf->io.win[0].base;
904 link->io.BasePort1 = link->io.BasePort2
905 + (pass ? (cf->index & 0x20 ? -24:8)
906 : (cf->index & 0x20 ? 8:-24));
907 if (!(err=pcmcia_request_io(link->handle, &link->io)))
908 goto port_found;
909 }
910 }
911 }
912 /* if special option:
913 * try to configure as Ethernet only.
914 * .... */
915 }
916 printk(KNOT_XIRC "no ports available\n");
917 } else {
918 link->irq.Attributes |= IRQ_TYPE_EXCLUSIVE;
919 link->io.NumPorts1 = 16;
920 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
921 link->io.BasePort1 = ioaddr;
922 if (!(err=pcmcia_request_io(link->handle, &link->io)))
923 goto port_found;
924 }
925 link->io.BasePort1 = 0; /* let CS decide */
926 if ((err=pcmcia_request_io(link->handle, &link->io))) {
927 cs_error(link->handle, RequestIO, err);
928 goto config_error;
929 }
930 }
931 port_found:
932 if (err)
933 goto config_error;
934
935 /****************
936 * Now allocate an interrupt line. Note that this does not
937 * actually assign a handler to the interrupt.
938 */
939 if ((err=pcmcia_request_irq(link->handle, &link->irq))) {
940 cs_error(link->handle, RequestIRQ, err);
941 goto config_error;
942 }
943
944 /****************
945 * This actually configures the PCMCIA socket -- setting up
946 * the I/O windows and the interrupt mapping.
947 */
948 if ((err=pcmcia_request_configuration(link->handle, &link->conf))) {
949 cs_error(link->handle, RequestConfiguration, err);
950 goto config_error;
951 }
952
953 if (local->dingo) {
954 conf_reg_t reg;
955 win_req_t req;
956 memreq_t mem;
957
958 /* Reset the modem's BAR to the correct value
959 * This is necessary because in the RequestConfiguration call,
960 * the base address of the ethernet port (BasePort1) is written
961 * to the BAR registers of the modem.
962 */
963 reg.Action = CS_WRITE;
964 reg.Offset = CISREG_IOBASE_0;
965 reg.Value = link->io.BasePort2 & 0xff;
966 if ((err = pcmcia_access_configuration_register(link->handle, &reg))) {
967 cs_error(link->handle, AccessConfigurationRegister, err);
968 goto config_error;
969 }
970 reg.Action = CS_WRITE;
971 reg.Offset = CISREG_IOBASE_1;
972 reg.Value = (link->io.BasePort2 >> 8) & 0xff;
973 if ((err = pcmcia_access_configuration_register(link->handle, &reg))) {
974 cs_error(link->handle, AccessConfigurationRegister, err);
975 goto config_error;
976 }
977
978 /* There is no config entry for the Ethernet part which
979 * is at 0x0800. So we allocate a window into the attribute
980 * memory and write direct to the CIS registers
981 */
982 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
983 req.Base = req.Size = 0;
984 req.AccessSpeed = 0;
985 if ((err = pcmcia_request_window(&link->handle, &req, &link->win))) {
986 cs_error(link->handle, RequestWindow, err);
987 goto config_error;
988 }
989 local->dingo_ccr = ioremap(req.Base,0x1000) + 0x0800;
990 mem.CardOffset = 0x0;
991 mem.Page = 0;
992 if ((err = pcmcia_map_mem_page(link->win, &mem))) {
993 cs_error(link->handle, MapMemPage, err);
994 goto config_error;
995 }
996
997 /* Setup the CCRs; there are no infos in the CIS about the Ethernet
998 * part.
999 */
1000 writeb(0x47, local->dingo_ccr + CISREG_COR);
1001 ioaddr = link->io.BasePort1;
1002 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
1003 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
1004
1005 #if 0
1006 {
1007 u_char tmp;
1008 printk(KERN_INFO "ECOR:");
1009 for (i=0; i < 7; i++) {
1010 tmp = readb(local->dingo_ccr + i*2);
1011 printk(" %02x", tmp);
1012 }
1013 printk("\n");
1014 printk(KERN_INFO "DCOR:");
1015 for (i=0; i < 4; i++) {
1016 tmp = readb(local->dingo_ccr + 0x20 + i*2);
1017 printk(" %02x", tmp);
1018 }
1019 printk("\n");
1020 printk(KERN_INFO "SCOR:");
1021 for (i=0; i < 10; i++) {
1022 tmp = readb(local->dingo_ccr + 0x40 + i*2);
1023 printk(" %02x", tmp);
1024 }
1025 printk("\n");
1026 }
1027 #endif
1028
1029 writeb(0x01, local->dingo_ccr + 0x20);
1030 writeb(0x0c, local->dingo_ccr + 0x22);
1031 writeb(0x00, local->dingo_ccr + 0x24);
1032 writeb(0x00, local->dingo_ccr + 0x26);
1033 writeb(0x00, local->dingo_ccr + 0x28);
1034 }
1035
1036 /* The if_port symbol can be set when the module is loaded */
1037 local->probe_port=0;
1038 if (!if_port) {
1039 local->probe_port = dev->if_port = 1;
1040 } else if ((if_port >= 1 && if_port <= 2) ||
1041 (local->mohawk && if_port==4))
1042 dev->if_port = if_port;
1043 else
1044 printk(KNOT_XIRC "invalid if_port requested\n");
1045
1046 /* we can now register the device with the net subsystem */
1047 dev->irq = link->irq.AssignedIRQ;
1048 dev->base_addr = link->io.BasePort1;
1049
1050 if (local->dingo)
1051 do_reset(dev, 1); /* a kludge to make the cem56 work */
1052
1053 link->dev = &local->node;
1054 link->state &= ~DEV_CONFIG_PENDING;
1055 SET_NETDEV_DEV(dev, &handle_to_dev(handle));
1056
1057 if ((err=register_netdev(dev))) {
1058 printk(KNOT_XIRC "register_netdev() failed\n");
1059 link->dev = NULL;
1060 goto config_error;
1061 }
1062
1063 strcpy(local->node.dev_name, dev->name);
1064
1065 /* give some infos about the hardware */
1066 printk(KERN_INFO "%s: %s: port %#3lx, irq %d, hwaddr",
1067 dev->name, local->manf_str,(u_long)dev->base_addr, (int)dev->irq);
1068 for (i = 0; i < 6; i++)
1069 printk("%c%02X", i?':':' ', dev->dev_addr[i]);
1070 printk("\n");
1071
1072 return;
1073
1074 config_error:
1075 link->state &= ~DEV_CONFIG_PENDING;
1076 xirc2ps_release(link);
1077 return;
1078
1079 cis_error:
1080 printk(KNOT_XIRC "unable to parse CIS\n");
1081 failure:
1082 link->state &= ~DEV_CONFIG_PENDING;
1083 } /* xirc2ps_config */
1084
1085 /****************
1086 * After a card is removed, xirc2ps_release() will unregister the net
1087 * device, and release the PCMCIA configuration. If the device is
1088 * still open, this will be postponed until it is closed.
1089 */
1090 static void
1091 xirc2ps_release(dev_link_t *link)
1092 {
1093
1094 DEBUG(0, "release(0x%p)\n", link);
1095
1096 if (link->win) {
1097 struct net_device *dev = link->priv;
1098 local_info_t *local = netdev_priv(dev);
1099 if (local->dingo)
1100 iounmap(local->dingo_ccr - 0x0800);
1101 pcmcia_release_window(link->win);
1102 }
1103 pcmcia_release_configuration(link->handle);
1104 pcmcia_release_io(link->handle, &link->io);
1105 pcmcia_release_irq(link->handle, &link->irq);
1106 link->state &= ~DEV_CONFIG;
1107
1108 } /* xirc2ps_release */
1109
1110 /*====================================================================*/
1111
1112
1113 static int xirc2ps_suspend(struct pcmcia_device *p_dev)
1114 {
1115 dev_link_t *link = dev_to_instance(p_dev);
1116 struct net_device *dev = link->priv;
1117
1118 link->state |= DEV_SUSPEND;
1119 if (link->state & DEV_CONFIG) {
1120 if (link->open) {
1121 netif_device_detach(dev);
1122 do_powerdown(dev);
1123 }
1124 pcmcia_release_configuration(link->handle);
1125 }
1126
1127 return 0;
1128 }
1129
1130 static int xirc2ps_resume(struct pcmcia_device *p_dev)
1131 {
1132 dev_link_t *link = dev_to_instance(p_dev);
1133 struct net_device *dev = link->priv;
1134
1135 link->state &= ~DEV_SUSPEND;
1136 if (link->state & DEV_CONFIG) {
1137 pcmcia_request_configuration(link->handle, &link->conf);
1138 if (link->open) {
1139 do_reset(dev,1);
1140 netif_device_attach(dev);
1141 }
1142 }
1143
1144 return 0;
1145 }
1146
1147
1148 /*====================================================================*/
1149
1150 /****************
1151 * This is the Interrupt service route.
1152 */
1153 static irqreturn_t
1154 xirc2ps_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1155 {
1156 struct net_device *dev = (struct net_device *)dev_id;
1157 local_info_t *lp = netdev_priv(dev);
1158 kio_addr_t ioaddr;
1159 u_char saved_page;
1160 unsigned bytes_rcvd;
1161 unsigned int_status, eth_status, rx_status, tx_status;
1162 unsigned rsr, pktlen;
1163 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
1164 * is this something to worry about?
1165 * -- on a laptop?
1166 */
1167
1168 if (!netif_device_present(dev))
1169 return IRQ_HANDLED;
1170
1171 ioaddr = dev->base_addr;
1172 if (lp->mohawk) { /* must disable the interrupt */
1173 PutByte(XIRCREG_CR, 0);
1174 }
1175
1176 DEBUG(6, "%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
1177
1178 saved_page = GetByte(XIRCREG_PR);
1179 /* Read the ISR to see whats the cause for the interrupt.
1180 * This also clears the interrupt flags on CE2 cards
1181 */
1182 int_status = GetByte(XIRCREG_ISR);
1183 bytes_rcvd = 0;
1184 loop_entry:
1185 if (int_status == 0xff) { /* card may be ejected */
1186 DEBUG(3, "%s: interrupt %d for dead card\n", dev->name, irq);
1187 goto leave;
1188 }
1189 eth_status = GetByte(XIRCREG_ESR);
1190
1191 SelectPage(0x40);
1192 rx_status = GetByte(XIRCREG40_RXST0);
1193 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
1194 tx_status = GetByte(XIRCREG40_TXST0);
1195 tx_status |= GetByte(XIRCREG40_TXST1) << 8;
1196 PutByte(XIRCREG40_TXST0, 0);
1197 PutByte(XIRCREG40_TXST1, 0);
1198
1199 DEBUG(3, "%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
1200 dev->name, int_status, eth_status, rx_status, tx_status);
1201
1202 /***** receive section ******/
1203 SelectPage(0);
1204 while (eth_status & FullPktRcvd) {
1205 rsr = GetByte(XIRCREG0_RSR);
1206 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
1207 /* too many bytes received during this int, drop the rest of the
1208 * packets */
1209 lp->stats.rx_dropped++;
1210 DEBUG(2, "%s: RX drop, too much done\n", dev->name);
1211 } else if (rsr & PktRxOk) {
1212 struct sk_buff *skb;
1213
1214 pktlen = GetWord(XIRCREG0_RBC);
1215 bytes_rcvd += pktlen;
1216
1217 DEBUG(5, "rsr=%#02x packet_length=%u\n", rsr, pktlen);
1218
1219 skb = dev_alloc_skb(pktlen+3); /* 1 extra so we can use insw */
1220 if (!skb) {
1221 printk(KNOT_XIRC "low memory, packet dropped (size=%u)\n",
1222 pktlen);
1223 lp->stats.rx_dropped++;
1224 } else { /* okay get the packet */
1225 skb_reserve(skb, 2);
1226 if (lp->silicon == 0 ) { /* work around a hardware bug */
1227 unsigned rhsa; /* receive start address */
1228
1229 SelectPage(5);
1230 rhsa = GetWord(XIRCREG5_RHSA0);
1231 SelectPage(0);
1232 rhsa += 3; /* skip control infos */
1233 if (rhsa >= 0x8000)
1234 rhsa = 0;
1235 if (rhsa + pktlen > 0x8000) {
1236 unsigned i;
1237 u_char *buf = skb_put(skb, pktlen);
1238 for (i=0; i < pktlen ; i++, rhsa++) {
1239 buf[i] = GetByte(XIRCREG_EDP);
1240 if (rhsa == 0x8000) {
1241 rhsa = 0;
1242 i--;
1243 }
1244 }
1245 } else {
1246 insw(ioaddr+XIRCREG_EDP,
1247 skb_put(skb, pktlen), (pktlen+1)>>1);
1248 }
1249 }
1250 #if 0
1251 else if (lp->mohawk) {
1252 /* To use this 32 bit access we should use
1253 * a manual optimized loop
1254 * Also the words are swapped, we can get more
1255 * performance by using 32 bit access and swapping
1256 * the words in a register. Will need this for cardbus
1257 *
1258 * Note: don't forget to change the ALLOC_SKB to .. +3
1259 */
1260 unsigned i;
1261 u_long *p = skb_put(skb, pktlen);
1262 register u_long a;
1263 kio_addr_t edpreg = ioaddr+XIRCREG_EDP-2;
1264 for (i=0; i < len ; i += 4, p++) {
1265 a = inl(edpreg);
1266 __asm__("rorl $16,%0\n\t"
1267 :"=q" (a)
1268 : "0" (a));
1269 *p = a;
1270 }
1271 }
1272 #endif
1273 else {
1274 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
1275 (pktlen+1)>>1);
1276 }
1277 skb->protocol = eth_type_trans(skb, dev);
1278 skb->dev = dev;
1279 netif_rx(skb);
1280 dev->last_rx = jiffies;
1281 lp->stats.rx_packets++;
1282 lp->stats.rx_bytes += pktlen;
1283 if (!(rsr & PhyPkt))
1284 lp->stats.multicast++;
1285 }
1286 } else { /* bad packet */
1287 DEBUG(5, "rsr=%#02x\n", rsr);
1288 }
1289 if (rsr & PktTooLong) {
1290 lp->stats.rx_frame_errors++;
1291 DEBUG(3, "%s: Packet too long\n", dev->name);
1292 }
1293 if (rsr & CRCErr) {
1294 lp->stats.rx_crc_errors++;
1295 DEBUG(3, "%s: CRC error\n", dev->name);
1296 }
1297 if (rsr & AlignErr) {
1298 lp->stats.rx_fifo_errors++; /* okay ? */
1299 DEBUG(3, "%s: Alignment error\n", dev->name);
1300 }
1301
1302 /* clear the received/dropped/error packet */
1303 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
1304
1305 /* get the new ethernet status */
1306 eth_status = GetByte(XIRCREG_ESR);
1307 }
1308 if (rx_status & 0x10) { /* Receive overrun */
1309 lp->stats.rx_over_errors++;
1310 PutByte(XIRCREG_CR, ClearRxOvrun);
1311 DEBUG(3, "receive overrun cleared\n");
1312 }
1313
1314 /***** transmit section ******/
1315 if (int_status & PktTxed) {
1316 unsigned n, nn;
1317
1318 n = lp->last_ptr_value;
1319 nn = GetByte(XIRCREG0_PTR);
1320 lp->last_ptr_value = nn;
1321 if (nn < n) /* rollover */
1322 lp->stats.tx_packets += 256 - n;
1323 else if (n == nn) { /* happens sometimes - don't know why */
1324 DEBUG(0, "PTR not changed?\n");
1325 } else
1326 lp->stats.tx_packets += lp->last_ptr_value - n;
1327 netif_wake_queue(dev);
1328 }
1329 if (tx_status & 0x0002) { /* Execessive collissions */
1330 DEBUG(0, "tx restarted due to execssive collissions\n");
1331 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
1332 }
1333 if (tx_status & 0x0040)
1334 lp->stats.tx_aborted_errors++;
1335
1336 /* recalculate our work chunk so that we limit the duration of this
1337 * ISR to about 1/10 of a second.
1338 * Calculate only if we received a reasonable amount of bytes.
1339 */
1340 if (bytes_rcvd > 1000) {
1341 u_long duration = jiffies - start_ticks;
1342
1343 if (duration >= HZ/10) { /* if more than about 1/10 second */
1344 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
1345 if (maxrx_bytes < 2000)
1346 maxrx_bytes = 2000;
1347 else if (maxrx_bytes > 22000)
1348 maxrx_bytes = 22000;
1349 DEBUG(1, "set maxrx=%u (rcvd=%u ticks=%lu)\n",
1350 maxrx_bytes, bytes_rcvd, duration);
1351 } else if (!duration && maxrx_bytes < 22000) {
1352 /* now much faster */
1353 maxrx_bytes += 2000;
1354 if (maxrx_bytes > 22000)
1355 maxrx_bytes = 22000;
1356 DEBUG(1, "set maxrx=%u\n", maxrx_bytes);
1357 }
1358 }
1359
1360 leave:
1361 if (lockup_hack) {
1362 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
1363 goto loop_entry;
1364 }
1365 SelectPage(saved_page);
1366 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
1367 /* Instead of dropping packets during a receive, we could
1368 * force an interrupt with this command:
1369 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
1370 */
1371 return IRQ_HANDLED;
1372 } /* xirc2ps_interrupt */
1373
1374 /*====================================================================*/
1375
1376 static void
1377 do_tx_timeout(struct net_device *dev)
1378 {
1379 local_info_t *lp = netdev_priv(dev);
1380 printk(KERN_NOTICE "%s: transmit timed out\n", dev->name);
1381 lp->stats.tx_errors++;
1382 /* reset the card */
1383 do_reset(dev,1);
1384 dev->trans_start = jiffies;
1385 netif_wake_queue(dev);
1386 }
1387
1388 static int
1389 do_start_xmit(struct sk_buff *skb, struct net_device *dev)
1390 {
1391 local_info_t *lp = netdev_priv(dev);
1392 kio_addr_t ioaddr = dev->base_addr;
1393 int okay;
1394 unsigned freespace;
1395 unsigned pktlen = skb? skb->len : 0;
1396
1397 DEBUG(1, "do_start_xmit(skb=%p, dev=%p) len=%u\n",
1398 skb, dev, pktlen);
1399
1400
1401 /* adjust the packet length to min. required
1402 * and hope that the buffer is large enough
1403 * to provide some random data.
1404 * fixme: For Mohawk we can change this by sending
1405 * a larger packetlen than we actually have; the chip will
1406 * pad this in his buffer with random bytes
1407 */
1408 if (pktlen < ETH_ZLEN)
1409 {
1410 skb = skb_padto(skb, ETH_ZLEN);
1411 if (skb == NULL)
1412 return 0;
1413 pktlen = ETH_ZLEN;
1414 }
1415
1416 netif_stop_queue(dev);
1417 SelectPage(0);
1418 PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
1419 freespace = GetWord(XIRCREG0_TSO);
1420 okay = freespace & 0x8000;
1421 freespace &= 0x7fff;
1422 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
1423 okay = pktlen +2 < freespace;
1424 DEBUG(2 + (okay ? 2 : 0), "%s: avail. tx space=%u%s\n",
1425 dev->name, freespace, okay ? " (okay)":" (not enough)");
1426 if (!okay) { /* not enough space */
1427 return 1; /* upper layer may decide to requeue this packet */
1428 }
1429 /* send the packet */
1430 PutWord(XIRCREG_EDP, (u_short)pktlen);
1431 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
1432 if (pktlen & 1)
1433 PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
1434
1435 if (lp->mohawk)
1436 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
1437
1438 dev_kfree_skb (skb);
1439 dev->trans_start = jiffies;
1440 lp->stats.tx_bytes += pktlen;
1441 netif_start_queue(dev);
1442 return 0;
1443 }
1444
1445 static struct net_device_stats *
1446 do_get_stats(struct net_device *dev)
1447 {
1448 local_info_t *lp = netdev_priv(dev);
1449
1450 /* lp->stats.rx_missed_errors = GetByte(?) */
1451 return &lp->stats;
1452 }
1453
1454 /****************
1455 * Set all addresses: This first one is the individual address,
1456 * the next 9 addresses are taken from the multicast list and
1457 * the rest is filled with the individual address.
1458 */
1459 static void
1460 set_addresses(struct net_device *dev)
1461 {
1462 kio_addr_t ioaddr = dev->base_addr;
1463 local_info_t *lp = netdev_priv(dev);
1464 struct dev_mc_list *dmi = dev->mc_list;
1465 char *addr;
1466 int i,j,k,n;
1467
1468 SelectPage(k=0x50);
1469 for (i=0,j=8,n=0; ; i++, j++) {
1470 if (i > 5) {
1471 if (++n > 9)
1472 break;
1473 i = 0;
1474 }
1475 if (j > 15) {
1476 j = 8;
1477 k++;
1478 SelectPage(k);
1479 }
1480
1481 if (n && n <= dev->mc_count && dmi) {
1482 addr = dmi->dmi_addr;
1483 dmi = dmi->next;
1484 } else
1485 addr = dev->dev_addr;
1486
1487 if (lp->mohawk)
1488 PutByte(j, addr[5-i]);
1489 else
1490 PutByte(j, addr[i]);
1491 }
1492 SelectPage(0);
1493 }
1494
1495 /****************
1496 * Set or clear the multicast filter for this adaptor.
1497 * We can filter up to 9 addresses, if more are requested we set
1498 * multicast promiscuous mode.
1499 */
1500
1501 static void
1502 set_multicast_list(struct net_device *dev)
1503 {
1504 kio_addr_t ioaddr = dev->base_addr;
1505
1506 SelectPage(0x42);
1507 if (dev->flags & IFF_PROMISC) { /* snoop */
1508 PutByte(XIRCREG42_SWC1, 0x06); /* set MPE and PME */
1509 } else if (dev->mc_count > 9 || (dev->flags & IFF_ALLMULTI)) {
1510 PutByte(XIRCREG42_SWC1, 0x06); /* set MPE */
1511 } else if (dev->mc_count) {
1512 /* the chip can filter 9 addresses perfectly */
1513 PutByte(XIRCREG42_SWC1, 0x00);
1514 SelectPage(0x40);
1515 PutByte(XIRCREG40_CMD0, Offline);
1516 set_addresses(dev);
1517 SelectPage(0x40);
1518 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1519 } else { /* standard usage */
1520 PutByte(XIRCREG42_SWC1, 0x00);
1521 }
1522 SelectPage(0);
1523 }
1524
1525 static int
1526 do_config(struct net_device *dev, struct ifmap *map)
1527 {
1528 local_info_t *local = netdev_priv(dev);
1529
1530 DEBUG(0, "do_config(%p)\n", dev);
1531 if (map->port != 255 && map->port != dev->if_port) {
1532 if (map->port > 4)
1533 return -EINVAL;
1534 if (!map->port) {
1535 local->probe_port = 1;
1536 dev->if_port = 1;
1537 } else {
1538 local->probe_port = 0;
1539 dev->if_port = map->port;
1540 }
1541 printk(KERN_INFO "%s: switching to %s port\n",
1542 dev->name, if_names[dev->if_port]);
1543 do_reset(dev,1); /* not the fine way :-) */
1544 }
1545 return 0;
1546 }
1547
1548 /****************
1549 * Open the driver
1550 */
1551 static int
1552 do_open(struct net_device *dev)
1553 {
1554 local_info_t *lp = netdev_priv(dev);
1555 dev_link_t *link = &lp->link;
1556
1557 DEBUG(0, "do_open(%p)\n", dev);
1558
1559 /* Check that the PCMCIA card is still here. */
1560 /* Physical device present signature. */
1561 if (!DEV_OK(link))
1562 return -ENODEV;
1563
1564 /* okay */
1565 link->open++;
1566
1567 netif_start_queue(dev);
1568 do_reset(dev,1);
1569
1570 return 0;
1571 }
1572
1573 static void netdev_get_drvinfo(struct net_device *dev,
1574 struct ethtool_drvinfo *info)
1575 {
1576 strcpy(info->driver, "xirc2ps_cs");
1577 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
1578 }
1579
1580 static struct ethtool_ops netdev_ethtool_ops = {
1581 .get_drvinfo = netdev_get_drvinfo,
1582 };
1583
1584 static int
1585 do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1586 {
1587 local_info_t *local = netdev_priv(dev);
1588 kio_addr_t ioaddr = dev->base_addr;
1589 u16 *data = (u16 *)&rq->ifr_ifru;
1590
1591 DEBUG(1, "%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
1592 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
1593 data[0], data[1], data[2], data[3]);
1594
1595 if (!local->mohawk)
1596 return -EOPNOTSUPP;
1597
1598 switch(cmd) {
1599 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
1600 data[0] = 0; /* we have only this address */
1601 /* fall through */
1602 case SIOCGMIIREG: /* Read the specified MII register. */
1603 data[3] = mii_rd(ioaddr, data[0] & 0x1f, data[1] & 0x1f);
1604 break;
1605 case SIOCSMIIREG: /* Write the specified MII register */
1606 if (!capable(CAP_NET_ADMIN))
1607 return -EPERM;
1608 mii_wr(ioaddr, data[0] & 0x1f, data[1] & 0x1f, data[2], 16);
1609 break;
1610 default:
1611 return -EOPNOTSUPP;
1612 }
1613 return 0;
1614 }
1615
1616 static void
1617 hardreset(struct net_device *dev)
1618 {
1619 local_info_t *local = netdev_priv(dev);
1620 kio_addr_t ioaddr = dev->base_addr;
1621
1622 SelectPage(4);
1623 udelay(1);
1624 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1625 msleep(40); /* wait 40 msec */
1626 if (local->mohawk)
1627 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
1628 else
1629 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
1630 msleep(20); /* wait 20 msec */
1631 }
1632
1633 static void
1634 do_reset(struct net_device *dev, int full)
1635 {
1636 local_info_t *local = netdev_priv(dev);
1637 kio_addr_t ioaddr = dev->base_addr;
1638 unsigned value;
1639
1640 DEBUG(0, "%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
1641
1642 hardreset(dev);
1643 PutByte(XIRCREG_CR, SoftReset); /* set */
1644 msleep(20); /* wait 20 msec */
1645 PutByte(XIRCREG_CR, 0); /* clear */
1646 msleep(40); /* wait 40 msec */
1647 if (local->mohawk) {
1648 SelectPage(4);
1649 /* set pin GP1 and GP2 to output (0x0c)
1650 * set GP1 to low to power up the ML6692 (0x00)
1651 * set GP2 to high to power up the 10Mhz chip (0x02)
1652 */
1653 PutByte(XIRCREG4_GPR0, 0x0e);
1654 }
1655
1656 /* give the circuits some time to power up */
1657 msleep(500); /* about 500ms */
1658
1659 local->last_ptr_value = 0;
1660 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
1661 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
1662
1663 if (local->probe_port) {
1664 if (!local->mohawk) {
1665 SelectPage(4);
1666 PutByte(XIRCREG4_GPR0, 4);
1667 local->probe_port = 0;
1668 }
1669 } else if (dev->if_port == 2) { /* enable 10Base2 */
1670 SelectPage(0x42);
1671 PutByte(XIRCREG42_SWC1, 0xC0);
1672 } else { /* enable 10BaseT */
1673 SelectPage(0x42);
1674 PutByte(XIRCREG42_SWC1, 0x80);
1675 }
1676 msleep(40); /* wait 40 msec to let it complete */
1677
1678 #ifdef PCMCIA_DEBUG
1679 if (pc_debug) {
1680 SelectPage(0);
1681 value = GetByte(XIRCREG_ESR); /* read the ESR */
1682 printk(KERN_DEBUG "%s: ESR is: %#02x\n", dev->name, value);
1683 }
1684 #endif
1685
1686 /* setup the ECR */
1687 SelectPage(1);
1688 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
1689 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
1690 value = GetByte(XIRCREG1_ECR);
1691 #if 0
1692 if (local->mohawk)
1693 value |= DisableLinkPulse;
1694 PutByte(XIRCREG1_ECR, value);
1695 #endif
1696 DEBUG(0, "%s: ECR is: %#02x\n", dev->name, value);
1697
1698 SelectPage(0x42);
1699 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
1700
1701 if (local->silicon != 1) {
1702 /* set the local memory dividing line.
1703 * The comments in the sample code say that this is only
1704 * settable with the scipper version 2 which is revision 0.
1705 * Always for CE3 cards
1706 */
1707 SelectPage(2);
1708 PutWord(XIRCREG2_RBS, 0x2000);
1709 }
1710
1711 if (full)
1712 set_addresses(dev);
1713
1714 /* Hardware workaround:
1715 * The receive byte pointer after reset is off by 1 so we need
1716 * to move the offset pointer back to 0.
1717 */
1718 SelectPage(0);
1719 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
1720
1721 /* setup MAC IMRs and clear status registers */
1722 SelectPage(0x40); /* Bit 7 ... bit 0 */
1723 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
1724 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1725 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
1726 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
1727 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1728 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
1729
1730 if (full && local->mohawk && init_mii(dev)) {
1731 if (dev->if_port == 4 || local->dingo || local->new_mii) {
1732 printk(KERN_INFO "%s: MII selected\n", dev->name);
1733 SelectPage(2);
1734 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
1735 msleep(20);
1736 } else {
1737 printk(KERN_INFO "%s: MII detected; using 10mbs\n",
1738 dev->name);
1739 SelectPage(0x42);
1740 if (dev->if_port == 2) /* enable 10Base2 */
1741 PutByte(XIRCREG42_SWC1, 0xC0);
1742 else /* enable 10BaseT */
1743 PutByte(XIRCREG42_SWC1, 0x80);
1744 msleep(40); /* wait 40 msec to let it complete */
1745 }
1746 if (full_duplex)
1747 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
1748 } else { /* No MII */
1749 SelectPage(0);
1750 value = GetByte(XIRCREG_ESR); /* read the ESR */
1751 dev->if_port = (value & MediaSelect) ? 1 : 2;
1752 }
1753
1754 /* configure the LEDs */
1755 SelectPage(2);
1756 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
1757 PutByte(XIRCREG2_LED, 0x3b);
1758 else /* Coax: Not-Collision and Activity */
1759 PutByte(XIRCREG2_LED, 0x3a);
1760
1761 if (local->dingo)
1762 PutByte(0x0b, 0x04); /* 100 Mbit LED */
1763
1764 /* enable receiver and put the mac online */
1765 if (full) {
1766 SelectPage(0x40);
1767 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1768 }
1769
1770 /* setup Ethernet IMR and enable interrupts */
1771 SelectPage(1);
1772 PutByte(XIRCREG1_IMR0, 0xff);
1773 udelay(1);
1774 SelectPage(0);
1775 PutByte(XIRCREG_CR, EnableIntr);
1776 if (local->modem && !local->dingo) { /* do some magic */
1777 if (!(GetByte(0x10) & 0x01))
1778 PutByte(0x10, 0x11); /* unmask master-int bit */
1779 }
1780
1781 if (full)
1782 printk(KERN_INFO "%s: media %s, silicon revision %d\n",
1783 dev->name, if_names[dev->if_port], local->silicon);
1784 /* We should switch back to page 0 to avoid a bug in revision 0
1785 * where regs with offset below 8 can't be read after an access
1786 * to the MAC registers */
1787 SelectPage(0);
1788 }
1789
1790 /****************
1791 * Initialize the Media-Independent-Interface
1792 * Returns: True if we have a good MII
1793 */
1794 static int
1795 init_mii(struct net_device *dev)
1796 {
1797 local_info_t *local = netdev_priv(dev);
1798 kio_addr_t ioaddr = dev->base_addr;
1799 unsigned control, status, linkpartner;
1800 int i;
1801
1802 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
1803 dev->if_port = if_port;
1804 local->probe_port = 0;
1805 return 1;
1806 }
1807
1808 status = mii_rd(ioaddr, 0, 1);
1809 if ((status & 0xff00) != 0x7800)
1810 return 0; /* No MII */
1811
1812 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
1813
1814 if (local->probe_port)
1815 control = 0x1000; /* auto neg */
1816 else if (dev->if_port == 4)
1817 control = 0x2000; /* no auto neg, 100mbs mode */
1818 else
1819 control = 0x0000; /* no auto neg, 10mbs mode */
1820 mii_wr(ioaddr, 0, 0, control, 16);
1821 udelay(100);
1822 control = mii_rd(ioaddr, 0, 0);
1823
1824 if (control & 0x0400) {
1825 printk(KERN_NOTICE "%s can't take PHY out of isolation mode\n",
1826 dev->name);
1827 local->probe_port = 0;
1828 return 0;
1829 }
1830
1831 if (local->probe_port) {
1832 /* according to the DP83840A specs the auto negotiation process
1833 * may take up to 3.5 sec, so we use this also for our ML6692
1834 * Fixme: Better to use a timer here!
1835 */
1836 for (i=0; i < 35; i++) {
1837 msleep(100); /* wait 100 msec */
1838 status = mii_rd(ioaddr, 0, 1);
1839 if ((status & 0x0020) && (status & 0x0004))
1840 break;
1841 }
1842
1843 if (!(status & 0x0020)) {
1844 printk(KERN_INFO "%s: autonegotiation failed;"
1845 " using 10mbs\n", dev->name);
1846 if (!local->new_mii) {
1847 control = 0x0000;
1848 mii_wr(ioaddr, 0, 0, control, 16);
1849 udelay(100);
1850 SelectPage(0);
1851 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
1852 }
1853 } else {
1854 linkpartner = mii_rd(ioaddr, 0, 5);
1855 printk(KERN_INFO "%s: MII link partner: %04x\n",
1856 dev->name, linkpartner);
1857 if (linkpartner & 0x0080) {
1858 dev->if_port = 4;
1859 } else
1860 dev->if_port = 1;
1861 }
1862 }
1863
1864 return 1;
1865 }
1866
1867 static void
1868 do_powerdown(struct net_device *dev)
1869 {
1870
1871 kio_addr_t ioaddr = dev->base_addr;
1872
1873 DEBUG(0, "do_powerdown(%p)\n", dev);
1874
1875 SelectPage(4);
1876 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1877 SelectPage(0);
1878 }
1879
1880 static int
1881 do_stop(struct net_device *dev)
1882 {
1883 kio_addr_t ioaddr = dev->base_addr;
1884 local_info_t *lp = netdev_priv(dev);
1885 dev_link_t *link = &lp->link;
1886
1887 DEBUG(0, "do_stop(%p)\n", dev);
1888
1889 if (!link)
1890 return -ENODEV;
1891
1892 netif_stop_queue(dev);
1893
1894 SelectPage(0);
1895 PutByte(XIRCREG_CR, 0); /* disable interrupts */
1896 SelectPage(0x01);
1897 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
1898 SelectPage(4);
1899 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1900 SelectPage(0);
1901
1902 link->open--;
1903 return 0;
1904 }
1905
1906 static struct pcmcia_device_id xirc2ps_ids[] = {
1907 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a),
1908 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a),
1909 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),
1910 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),
1911 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),
1912 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),
1913 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),
1914 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),
1915 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a),
1916 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2),
1917 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37),
1918 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073),
1919 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3),
1920 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609),
1921 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46),
1922 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2),
1923 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769),
1924 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db),
1925 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf),
1926 /* also matches CFE-10 cards! */
1927 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */
1928 PCMCIA_DEVICE_NULL,
1929 };
1930 MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids);
1931
1932
1933 static struct pcmcia_driver xirc2ps_cs_driver = {
1934 .owner = THIS_MODULE,
1935 .drv = {
1936 .name = "xirc2ps_cs",
1937 },
1938 .probe = xirc2ps_attach,
1939 .remove = xirc2ps_detach,
1940 .id_table = xirc2ps_ids,
1941 .suspend = xirc2ps_suspend,
1942 .resume = xirc2ps_resume,
1943 };
1944
1945 static int __init
1946 init_xirc2ps_cs(void)
1947 {
1948 return pcmcia_register_driver(&xirc2ps_cs_driver);
1949 }
1950
1951 static void __exit
1952 exit_xirc2ps_cs(void)
1953 {
1954 pcmcia_unregister_driver(&xirc2ps_cs_driver);
1955 }
1956
1957 module_init(init_xirc2ps_cs);
1958 module_exit(exit_xirc2ps_cs);
1959
1960 #ifndef MODULE
1961 static int __init setup_xirc2ps_cs(char *str)
1962 {
1963 /* if_port, full_duplex, do_sound, lockup_hack
1964 */
1965 int ints[10] = { -1 };
1966
1967 str = get_options(str, 9, ints);
1968
1969 #define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
1970 MAYBE_SET(if_port, 3);
1971 MAYBE_SET(full_duplex, 4);
1972 MAYBE_SET(do_sound, 5);
1973 MAYBE_SET(lockup_hack, 6);
1974 #undef MAYBE_SET
1975
1976 return 0;
1977 }
1978
1979 __setup("xirc2ps_cs=", setup_xirc2ps_cs);
1980 #endif
USB Experimental Work