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pcmcia: dev_node removal (drivers with unregister_netdev check)
[deliverable/linux.git] / drivers / net / pcmcia / xirc2ps_cs.c
CommitLineData
1da177e4
LT		 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>
0fa0ee05 83#include <linux/mii.h>
1da177e4 84
1da177e4
LT		 85#include <pcmcia/cs_types.h>
86#include <pcmcia/cs.h>
87#include <pcmcia/cistpl.h>
88#include <pcmcia/cisreg.h>
89#include <pcmcia/ciscode.h>
90
91#include <asm/io.h>
92#include <asm/system.h>
93#include <asm/uaccess.h>
94
95#ifndef MANFID_COMPAQ
96 #define MANFID_COMPAQ 0x0138
97 #define MANFID_COMPAQ2 0x0183 /* is this correct? */
98#endif
99
100#include <pcmcia/ds.h>
101
102/* Time in jiffies before concluding Tx hung */
103#define TX_TIMEOUT ((400*HZ)/1000)
104
105/****************
106 * Some constants used to access the hardware
107 */
108
109/* Register offsets and value constans */
110#define XIRCREG_CR 0 /* Command register (wr) */
111enum xirc_cr {
112 TransmitPacket = 0x01,
113 SoftReset = 0x02,
114 EnableIntr = 0x04,
115 ForceIntr = 0x08,
116 ClearTxFIFO = 0x10,
117 ClearRxOvrun = 0x20,
118 RestartTx = 0x40
119};
120#define XIRCREG_ESR 0 /* Ethernet status register (rd) */
121enum xirc_esr {
122 FullPktRcvd = 0x01, /* full packet in receive buffer */
123 PktRejected = 0x04, /* a packet has been rejected */
124 TxPktPend = 0x08, /* TX Packet Pending */
125 IncorPolarity = 0x10,
126 MediaSelect = 0x20 /* set if TP, clear if AUI */
127};
128#define XIRCREG_PR 1 /* Page Register select */
129#define XIRCREG_EDP 4 /* Ethernet Data Port Register */
130#define XIRCREG_ISR 6 /* Ethernet Interrupt Status Register */
131enum xirc_isr {
132 TxBufOvr = 0x01, /* TX Buffer Overflow */
133 PktTxed = 0x02, /* Packet Transmitted */
134 MACIntr = 0x04, /* MAC Interrupt occurred */
135 TxResGrant = 0x08, /* Tx Reservation Granted */
136 RxFullPkt = 0x20, /* Rx Full Packet */
137 RxPktRej = 0x40, /* Rx Packet Rejected */
138 ForcedIntr= 0x80 /* Forced Interrupt */
139};
140#define XIRCREG1_IMR0 12 /* Ethernet Interrupt Mask Register (on page 1)*/
141#define XIRCREG1_IMR1 13
142#define XIRCREG0_TSO 8 /* Transmit Space Open Register (on page 0)*/
143#define XIRCREG0_TRS 10 /* Transmit reservation Size Register (page 0)*/
144#define XIRCREG0_DO 12 /* Data Offset Register (page 0) (wr) */
145#define XIRCREG0_RSR 12 /* Receive Status Register (page 0) (rd) */
146enum xirc_rsr {
147 PhyPkt = 0x01, /* set:physical packet, clear: multicast packet */
148 BrdcstPkt = 0x02, /* set if it is a broadcast packet */
149 PktTooLong = 0x04, /* set if packet length > 1518 */
150 AlignErr = 0x10, /* incorrect CRC and last octet not complete */
151 CRCErr = 0x20, /* incorrect CRC and last octet is complete */
152 PktRxOk = 0x80 /* received ok */
153};
154#define XIRCREG0_PTR 13 /* packets transmitted register (rd) */
155#define XIRCREG0_RBC 14 /* receive byte count regsister (rd) */
156#define XIRCREG1_ECR 14 /* ethernet configurationn register */
157enum xirc_ecr {
158 FullDuplex = 0x04, /* enable full duplex mode */
159 LongTPMode = 0x08, /* adjust for longer lengths of TP cable */
160 DisablePolCor = 0x10,/* disable auto polarity correction */
161 DisableLinkPulse = 0x20, /* disable link pulse generation */
162 DisableAutoTx = 0x40, /* disable auto-transmit */
163};
164#define XIRCREG2_RBS 8 /* receive buffer start register */
165#define XIRCREG2_LED 10 /* LED Configuration register */
166/* values for the leds: Bits 2-0 for led 1
167 * 0 disabled Bits 5-3 for led 2
168 * 1 collision
169 * 2 noncollision
170 * 3 link_detected
171 * 4 incor_polarity
172 * 5 jabber
173 * 6 auto_assertion
174 * 7 rx_tx_activity
175 */
176#define XIRCREG2_MSR 12 /* Mohawk specific register */
177
178#define XIRCREG4_GPR0 8 /* General Purpose Register 0 */
179#define XIRCREG4_GPR1 9 /* General Purpose Register 1 */
180#define XIRCREG2_GPR2 13 /* General Purpose Register 2 (page2!)*/
181#define XIRCREG4_BOV 10 /* Bonding Version Register */
182#define XIRCREG4_LMA 12 /* Local Memory Address Register */
183#define XIRCREG4_LMD 14 /* Local Memory Data Port */
184/* MAC register can only by accessed with 8 bit operations */
185#define XIRCREG40_CMD0 8 /* Command Register (wr) */
186enum xirc_cmd { /* Commands */
187 Transmit = 0x01,
188 EnableRecv = 0x04,
189 DisableRecv = 0x08,
190 Abort = 0x10,
191 Online = 0x20,
192 IntrAck = 0x40,
193 Offline = 0x80
194};
195#define XIRCREG5_RHSA0 10 /* Rx Host Start Address */
196#define XIRCREG40_RXST0 9 /* Receive Status Register */
197#define XIRCREG40_TXST0 11 /* Transmit Status Register 0 */
198#define XIRCREG40_TXST1 12 /* Transmit Status Register 10 */
199#define XIRCREG40_RMASK0 13 /* Receive Mask Register */
200#define XIRCREG40_TMASK0 14 /* Transmit Mask Register 0 */
201#define XIRCREG40_TMASK1 15 /* Transmit Mask Register 0 */
202#define XIRCREG42_SWC0 8 /* Software Configuration 0 */
203#define XIRCREG42_SWC1 9 /* Software Configuration 1 */
204#define XIRCREG42_BOC 10 /* Back-Off Configuration */
205#define XIRCREG44_TDR0 8 /* Time Domain Reflectometry 0 */
206#define XIRCREG44_TDR1 9 /* Time Domain Reflectometry 1 */
207#define XIRCREG44_RXBC_LO 10 /* Rx Byte Count 0 (rd) */
208#define XIRCREG44_RXBC_HI 11 /* Rx Byte Count 1 (rd) */
209#define XIRCREG45_REV 15 /* Revision Register (rd) */
210#define XIRCREG50_IA 8 /* Individual Address (8-13) */
211
f71e1309 212static const char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" };
1da177e4 213
1da177e4
LT		 214
215#define KDBG_XIRC KERN_DEBUG "xirc2ps_cs: "
216#define KERR_XIRC KERN_ERR "xirc2ps_cs: "
217#define KWRN_XIRC KERN_WARNING "xirc2ps_cs: "
218#define KNOT_XIRC KERN_NOTICE "xirc2ps_cs: "
219#define KINF_XIRC KERN_INFO "xirc2ps_cs: "
220
221/* card types */
222#define XIR_UNKNOWN 0 /* unknown: not supported */
223#define XIR_CE 1 /* (prodid 1) different hardware: not supported */
224#define XIR_CE2 2 /* (prodid 2) */
225#define XIR_CE3 3 /* (prodid 3) */
226#define XIR_CEM 4 /* (prodid 1) different hardware: not supported */
227#define XIR_CEM2 5 /* (prodid 2) */
228#define XIR_CEM3 6 /* (prodid 3) */
229#define XIR_CEM33 7 /* (prodid 4) */
230#define XIR_CEM56M 8 /* (prodid 5) */
231#define XIR_CEM56 9 /* (prodid 6) */
232#define XIR_CM28 10 /* (prodid 3) modem only: not supported here */
233#define XIR_CM33 11 /* (prodid 4) modem only: not supported here */
234#define XIR_CM56 12 /* (prodid 5) modem only: not supported here */
235#define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */
236#define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */
237/*====================================================================*/
238
239/* Module parameters */
240
241MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver");
242MODULE_LICENSE("Dual MPL/GPL");
243
244#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
245
246INT_MODULE_PARM(if_port, 0);
247INT_MODULE_PARM(full_duplex, 0);
248INT_MODULE_PARM(do_sound, 1);
249INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */
250
251/*====================================================================*/
252
253/* We do not process more than these number of bytes during one
254 * interrupt. (Of course we receive complete packets, so this is not
255 * an exact value).
256 * Something between 2000..22000; first value gives best interrupt latency,
257 * the second enables the usage of the complete on-chip buffer. We use the
258 * high value as the initial value.
259 */
260static unsigned maxrx_bytes = 22000;
261
262/* MII management prototypes */
906da809
OJ		 263static void mii_idle(unsigned int ioaddr);
264static void mii_putbit(unsigned int ioaddr, unsigned data);
265static int mii_getbit(unsigned int ioaddr);
266static void mii_wbits(unsigned int ioaddr, unsigned data, int len);
267static unsigned mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg);
268static void mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg,
1da177e4
LT		 269 unsigned data, int len);
270
271/*
272 * The event() function is this driver's Card Services event handler.
273 * It will be called by Card Services when an appropriate card status
274 * event is received. The config() and release() entry points are
275 * used to configure or release a socket, in response to card insertion
276 * and ejection events. They are invoked from the event handler.
277 */
278
fba395ee 279static int has_ce2_string(struct pcmcia_device * link);
15b99ac1 280static int xirc2ps_config(struct pcmcia_device * link);
fba395ee 281static void xirc2ps_release(struct pcmcia_device * link);
1da177e4
LT		 282
283/****************
284 * The attach() and detach() entry points are used to create and destroy
285 * "instances" of the driver, where each instance represents everything
286 * needed to manage one actual PCMCIA card.
287 */
288
cc3b4866 289static void xirc2ps_detach(struct pcmcia_device *p_dev);
1da177e4
LT		 290
291/****************
292 * You'll also need to prototype all the functions that will actually
293 * be used to talk to your device. See 'pcmem_cs' for a good example
294 * of a fully self-sufficient driver; the other drivers rely more or
295 * less on other parts of the kernel.
296 */
297
7d12e780 298static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id);
1da177e4 299
1da177e4 300typedef struct local_info_t {
c4028958 301 struct net_device *dev;
fd238232 302 struct pcmcia_device *p_dev;
6394d7c9 303
1da177e4
LT		 304 int card_type;
305 int probe_port;
306 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */
307 int mohawk; /* a CE3 type card */
308 int dingo; /* a CEM56 type card */
309 int new_mii; /* has full 10baseT/100baseT MII */
310 int modem; /* is a multi function card (i.e with a modem) */
311 void __iomem *dingo_ccr; /* only used for CEM56 cards */
312 unsigned last_ptr_value; /* last packets transmitted value */
313 const char *manf_str;
9a469abe 314 struct work_struct tx_timeout_task;
1da177e4
LT		 315} local_info_t;
316
317/****************
318 * Some more prototypes
319 */
dbf02fae
SH		 320static netdev_tx_t do_start_xmit(struct sk_buff *skb,
321 struct net_device *dev);
ed4cb133 322static void xirc_tx_timeout(struct net_device *dev);
c4028958 323static void xirc2ps_tx_timeout_task(struct work_struct *work);
1da177e4
LT		 324static void set_addresses(struct net_device *dev);
325static void set_multicast_list(struct net_device *dev);
dddfbd82 326static int set_card_type(struct pcmcia_device *link);
1da177e4
LT		 327static int do_config(struct net_device *dev, struct ifmap *map);
328static int do_open(struct net_device *dev);
329static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
7282d491 330static const struct ethtool_ops netdev_ethtool_ops;
1da177e4
LT		 331static void hardreset(struct net_device *dev);
332static void do_reset(struct net_device *dev, int full);
333static int init_mii(struct net_device *dev);
334static void do_powerdown(struct net_device *dev);
335static int do_stop(struct net_device *dev);
336
337/*=============== Helper functions =========================*/
1da177e4
LT		 338#define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR)
339#define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))
340#define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))
341#define PutByte(reg,value) outb((value), ioaddr+(reg))
342#define PutWord(reg,value) outw((value), ioaddr+(reg))
343
344/*====== Functions used for debugging =================================*/
dd0fab5b 345#if 0 /* reading regs may change system status */
1da177e4
LT		 346static void
347PrintRegisters(struct net_device *dev)
348{
906da809 349 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 350
351 if (pc_debug > 1) {
352 int i, page;
353
354 printk(KDBG_XIRC "Register common: ");
355 for (i = 0; i < 8; i++)
356 printk(" %2.2x", GetByte(i));
357 printk("\n");
358 for (page = 0; page <= 8; page++) {
359 printk(KDBG_XIRC "Register page %2x: ", page);
360 SelectPage(page);
361 for (i = 8; i < 16; i++)
362 printk(" %2.2x", GetByte(i));
363 printk("\n");
364 }
365 for (page=0x40 ; page <= 0x5f; page++) {
8e95a202
JP		 366 if (page == 0x43 || (page >= 0x46 && page <= 0x4f) ||
367 (page >= 0x51 && page <=0x5e))
368 continue;
1da177e4
LT		 369 printk(KDBG_XIRC "Register page %2x: ", page);
370 SelectPage(page);
371 for (i = 8; i < 16; i++)
372 printk(" %2.2x", GetByte(i));
373 printk("\n");
374 }
375 }
376}
dd0fab5b 377#endif /* 0 */
1da177e4
LT		 378
379/*============== MII Management functions ===============*/
380
381/****************
382 * Turn around for read
383 */
384static void
906da809 385mii_idle(unsigned int ioaddr)
1da177e4
LT		 386{
387 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */
388 udelay(1);
389 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */
390 udelay(1);
391}
392
393/****************
394 * Write a bit to MDI/O
395 */
396static void
906da809 397mii_putbit(unsigned int ioaddr, unsigned data)
1da177e4
LT		 398{
399 #if 1
400 if (data) {
401 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */
402 udelay(1);
403 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */
404 udelay(1);
405 } else {
406 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */
407 udelay(1);
408 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */
409 udelay(1);
410 }
411 #else
412 if (data) {
413 PutWord(XIRCREG2_GPR2-1, 0x0e0e);
414 udelay(1);
415 PutWord(XIRCREG2_GPR2-1, 0x0f0f);
416 udelay(1);
417 } else {
418 PutWord(XIRCREG2_GPR2-1, 0x0c0c);
419 udelay(1);
420 PutWord(XIRCREG2_GPR2-1, 0x0d0d);
421 udelay(1);
422 }
423 #endif
424}
425
426/****************
427 * Get a bit from MDI/O
428 */
429static int
906da809 430mii_getbit(unsigned int ioaddr)
1da177e4
LT		 431{
432 unsigned d;
433
434 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */
435 udelay(1);
436 d = GetByte(XIRCREG2_GPR2); /* read MDIO */
437 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */
438 udelay(1);
439 return d & 0x20; /* read MDIO */
440}
441
442static void
906da809 443mii_wbits(unsigned int ioaddr, unsigned data, int len)
1da177e4
LT		 444{
445 unsigned m = 1 << (len-1);
446 for (; m; m >>= 1)
447 mii_putbit(ioaddr, data & m);
448}
449
450static unsigned
906da809 451mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg)
1da177e4
LT		 452{
453 int i;
454 unsigned data=0, m;
455
456 SelectPage(2);
457 for (i=0; i < 32; i++) /* 32 bit preamble */
458 mii_putbit(ioaddr, 1);
459 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */
460 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
461 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */
462 mii_idle(ioaddr); /* turn around */
463 mii_getbit(ioaddr);
464
465 for (m = 1<<15; m; m >>= 1)
466 if (mii_getbit(ioaddr))
467 data |= m;
468 mii_idle(ioaddr);
469 return data;
470}
471
472static void
906da809
OJ		 473mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data,
474 int len)
1da177e4
LT		 475{
476 int i;
477
478 SelectPage(2);
479 for (i=0; i < 32; i++) /* 32 bit preamble */
480 mii_putbit(ioaddr, 1);
481 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */
482 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
483 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */
484 mii_putbit(ioaddr, 1); /* turn around */
485 mii_putbit(ioaddr, 0);
486 mii_wbits(ioaddr, data, len); /* And write the data */
487 mii_idle(ioaddr);
488}
489
490/*============= Main bulk of functions =========================*/
491
0cd6e828
SH		 492static const struct net_device_ops netdev_ops = {
493 .ndo_open = do_open,
494 .ndo_stop = do_stop,
495 .ndo_start_xmit = do_start_xmit,
496 .ndo_tx_timeout = xirc_tx_timeout,
497 .ndo_set_config = do_config,
498 .ndo_do_ioctl = do_ioctl,
499 .ndo_set_multicast_list = set_multicast_list,
500 .ndo_change_mtu = eth_change_mtu,
501 .ndo_set_mac_address = eth_mac_addr,
502 .ndo_validate_addr = eth_validate_addr,
503};
504
1da177e4
LT		 505/****************
506 * xirc2ps_attach() creates an "instance" of the driver, allocating
507 * local data structures for one device. The device is registered
508 * with Card Services.
509 *
510 * The dev_link structure is initialized, but we don't actually
511 * configure the card at this point -- we wait until we receive a
512 * card insertion event.
513 */
514
f8cfa618 515static int
15b99ac1 516xirc2ps_probe(struct pcmcia_device *link)
1da177e4 517{
1da177e4
LT		 518 struct net_device *dev;
519 local_info_t *local;
1da177e4 520
dd0fab5b 521 dev_dbg(&link->dev, "attach()\n");
1da177e4
LT		 522
523 /* Allocate the device structure */
524 dev = alloc_etherdev(sizeof(local_info_t));
525 if (!dev)
f8cfa618 526 return -ENOMEM;
1da177e4 527 local = netdev_priv(dev);
c4028958 528 local->dev = dev;
fba395ee 529 local->p_dev = link;
1da177e4
LT		 530 link->priv = dev;
531
532 /* General socket configuration */
533 link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4
LT		 534 link->conf.IntType = INT_MEMORY_AND_IO;
535 link->conf.ConfigIndex = 1;
1da177e4
LT		 536
537 /* Fill in card specific entries */
0cd6e828
SH		 538 dev->netdev_ops = &netdev_ops;
539 dev->ethtool_ops = &netdev_ethtool_ops;
1da177e4 540 dev->watchdog_timeo = TX_TIMEOUT;
c4028958 541 INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task);
1da177e4 542
15b99ac1 543 return xirc2ps_config(link);
1da177e4
LT		 544} /* xirc2ps_attach */
545
546/****************
547 * This deletes a driver "instance". The device is de-registered
548 * with Card Services. If it has been released, all local data
549 * structures are freed. Otherwise, the structures will be freed
550 * when the device is released.
551 */
552
553static void
fba395ee 554xirc2ps_detach(struct pcmcia_device *link)
1da177e4
LT		 555{
556 struct net_device *dev = link->priv;
1da177e4 557
dd0fab5b 558 dev_dbg(&link->dev, "detach\n");
1da177e4 559
c7c2fa07 560 unregister_netdev(dev);
1da177e4 561
e2d40963 562 xirc2ps_release(link);
1da177e4 563
1da177e4
LT		 564 free_netdev(dev);
565} /* xirc2ps_detach */
566
567/****************
568 * Detect the type of the card. s is the buffer with the data of tuple 0x20
569 * Returns: 0 := not supported
570 * mediaid=11 and prodid=47
571 * Media-Id bits:
572 * Ethernet 0x01
573 * Tokenring 0x02
574 * Arcnet 0x04
575 * Wireless 0x08
576 * Modem 0x10
577 * GSM only 0x20
578 * Prod-Id bits:
579 * Pocket 0x10
580 * External 0x20
581 * Creditcard 0x40
582 * Cardbus 0x80
583 *
584 */
585static int
dddfbd82 586set_card_type(struct pcmcia_device *link)
1da177e4
LT		 587{
588 struct net_device *dev = link->priv;
589 local_info_t *local = netdev_priv(dev);
dddfbd82
DB		 590 u8 *buf;
591 unsigned int cisrev, mediaid, prodid;
592 size_t len;
593
594 len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf);
595 if (len < 5) {
596 dev_err(&link->dev, "invalid CIS -- sorry\n");
597 return 0;
598 }
1da177e4 599
dddfbd82
DB		 600 cisrev = buf[2];
601 mediaid = buf[3];
602 prodid = buf[4];
1da177e4 603
dd0fab5b 604 dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n",
1da177e4
LT		 605 cisrev, mediaid, prodid);
606
607 local->mohawk = 0;
608 local->dingo = 0;
609 local->modem = 0;
610 local->card_type = XIR_UNKNOWN;
611 if (!(prodid & 0x40)) {
612 printk(KNOT_XIRC "Ooops: Not a creditcard\n");
613 return 0;
614 }
615 if (!(mediaid & 0x01)) {
616 printk(KNOT_XIRC "Not an Ethernet card\n");
617 return 0;
618 }
619 if (mediaid & 0x10) {
620 local->modem = 1;
621 switch(prodid & 15) {
622 case 1: local->card_type = XIR_CEM ; break;
623 case 2: local->card_type = XIR_CEM2 ; break;
624 case 3: local->card_type = XIR_CEM3 ; break;
625 case 4: local->card_type = XIR_CEM33 ; break;
626 case 5: local->card_type = XIR_CEM56M;
627 local->mohawk = 1;
628 break;
629 case 6:
630 case 7: /* 7 is the RealPort 10/56 */
631 local->card_type = XIR_CEM56 ;
632 local->mohawk = 1;
633 local->dingo = 1;
634 break;
635 }
636 } else {
637 switch(prodid & 15) {
638 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
639 break;
640 case 2: local->card_type = XIR_CE2; break;
641 case 3: local->card_type = XIR_CE3;
642 local->mohawk = 1;
643 break;
644 }
645 }
646 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
647 printk(KNOT_XIRC "Sorry, this is an old CE card\n");
648 return 0;
649 }
650 if (local->card_type == XIR_UNKNOWN)
651 printk(KNOT_XIRC "unknown card (mediaid=%02x prodid=%02x)\n",
652 mediaid, prodid);
653
654 return 1;
655}
656
657/****************
658 * There are some CE2 cards out which claim to be a CE card.
659 * This function looks for a "CE2" in the 3rd version field.
660 * Returns: true if this is a CE2
661 */
662static int
a9606fd3 663has_ce2_string(struct pcmcia_device * p_dev)
1da177e4 664{
a9606fd3
DB		 665 if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2"))
666 return 1;
667 return 0;
1da177e4
LT		 668}
669
b54bf94b
DB		 670static int
671xirc2ps_config_modem(struct pcmcia_device *p_dev,
672 cistpl_cftable_entry_t *cf,
8e2fc39d 673 cistpl_cftable_entry_t *dflt,
ad913c11 674 unsigned int vcc,
b54bf94b
DB		 675 void *priv_data)
676{
677 unsigned int ioaddr;
678
679 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8) {
680 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
b54bf94b
DB		 681 p_dev->io.BasePort2 = cf->io.win[0].base;
682 p_dev->io.BasePort1 = ioaddr;
683 if (!pcmcia_request_io(p_dev, &p_dev->io))
684 return 0;
685 }
686 }
687 return -ENODEV;
688}
689
690static int
691xirc2ps_config_check(struct pcmcia_device *p_dev,
692 cistpl_cftable_entry_t *cf,
8e2fc39d 693 cistpl_cftable_entry_t *dflt,
ad913c11 694 unsigned int vcc,
b54bf94b
DB		 695 void *priv_data)
696{
697 int *pass = priv_data;
698
699 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8) {
b54bf94b
DB		 700 p_dev->io.BasePort2 = cf->io.win[0].base;
701 p_dev->io.BasePort1 = p_dev->io.BasePort2
702 + (*pass ? (cf->index & 0x20 ? -24:8)
703 : (cf->index & 0x20 ? 8:-24));
704 if (!pcmcia_request_io(p_dev, &p_dev->io))
705 return 0;
706 }
707 return -ENODEV;
708
709}
710
dddfbd82
DB		 711
712static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev,
713 tuple_t *tuple,
714 void *priv)
715{
716 struct net_device *dev = priv;
717 int i;
718
719 if (tuple->TupleDataLen != 13)
720 return -EINVAL;
721 if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) ||
722 (tuple->TupleData[2] != 6))
723 return -EINVAL;
724 /* another try (James Lehmer's CE2 version 4.1)*/
725 for (i = 2; i < 6; i++)
726 dev->dev_addr[i] = tuple->TupleData[i+2];
727 return 0;
728};
729
730
1da177e4
LT		 731/****************
732 * xirc2ps_config() is scheduled to run after a CARD_INSERTION event
733 * is received, to configure the PCMCIA socket, and to make the
734 * ethernet device available to the system.
735 */
15b99ac1 736static int
fba395ee 737xirc2ps_config(struct pcmcia_device * link)
1da177e4 738{
1da177e4
LT		 739 struct net_device *dev = link->priv;
740 local_info_t *local = netdev_priv(dev);
b54bf94b 741 unsigned int ioaddr;
dddfbd82
DB		 742 int err;
743 u8 *buf;
744 size_t len;
1da177e4
LT		 745
746 local->dingo_ccr = NULL;
747
dd0fab5b 748 dev_dbg(&link->dev, "config\n");
1da177e4
LT		 749
750 /* Is this a valid card */
7d2e8d00 751 if (link->has_manf_id == 0) {
1da177e4
LT		 752 printk(KNOT_XIRC "manfid not found in CIS\n");
753 goto failure;
754 }
755
7d2e8d00 756 switch (link->manf_id) {
1da177e4
LT		 757 case MANFID_XIRCOM:
758 local->manf_str = "Xircom";
759 break;
760 case MANFID_ACCTON:
761 local->manf_str = "Accton";
762 break;
763 case MANFID_COMPAQ:
764 case MANFID_COMPAQ2:
765 local->manf_str = "Compaq";
766 break;
767 case MANFID_INTEL:
768 local->manf_str = "Intel";
769 break;
770 case MANFID_TOSHIBA:
771 local->manf_str = "Toshiba";
772 break;
773 default:
774 printk(KNOT_XIRC "Unknown Card Manufacturer ID: 0x%04x\n",
dddfbd82 775 (unsigned)link->manf_id);
1da177e4
LT		 776 goto failure;
777 }
dd0fab5b 778 dev_dbg(&link->dev, "found %s card\n", local->manf_str);
1da177e4 779
dddfbd82 780 if (!set_card_type(link)) {
1da177e4
LT		 781 printk(KNOT_XIRC "this card is not supported\n");
782 goto failure;
783 }
784
1da177e4 785 /* get the ethernet address from the CIS */
dddfbd82
DB		 786 err = pcmcia_get_mac_from_cis(link, dev);
787
788 /* not found: try to get the node-id from tuple 0x89 */
789 if (err) {
790 len = pcmcia_get_tuple(link, 0x89, &buf);
791 /* data layout looks like tuple 0x22 */
792 if (buf && len == 8) {
793 if (*buf == CISTPL_FUNCE_LAN_NODE_ID) {
794 int i;
795 for (i = 2; i < 6; i++)
796 dev->dev_addr[i] = buf[i+2];
797 } else
798 err = -1;
1da177e4 799 }
dddfbd82 800 kfree(buf);
1da177e4 801 }
dddfbd82
DB		 802
803 if (err)
804 err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev);
805
1da177e4
LT		 806 if (err) {
807 printk(KNOT_XIRC "node-id not found in CIS\n");
808 goto failure;
809 }
1da177e4 810
1da177e4
LT		 811 link->io.IOAddrLines =10;
812 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
1da177e4
LT		 813 if (local->modem) {
814 int pass;
815
816 if (do_sound) {
817 link->conf.Attributes |= CONF_ENABLE_SPKR;
818 link->conf.Status |= CCSR_AUDIO_ENA;
819 }
1da177e4
LT		 820 link->io.NumPorts2 = 8;
821 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
822 if (local->dingo) {
823 /* Take the Modem IO port from the CIS and scan for a free
824 * Ethernet port */
825 link->io.NumPorts1 = 16; /* no Mako stuff anymore */
b54bf94b
DB		 826 if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL))
827 goto port_found;
1da177e4
LT		 828 } else {
829 link->io.NumPorts1 = 18;
830 /* We do 2 passes here: The first one uses the regular mapping and
831 * the second tries again, thereby considering that the 32 ports are
832 * mirrored every 32 bytes. Actually we use a mirrored port for
833 * the Mako if (on the first pass) the COR bit 5 is set.
834 */
b54bf94b
DB		 835 for (pass=0; pass < 2; pass++)
836 if (!pcmcia_loop_config(link, xirc2ps_config_check, &pass))
1da177e4 837 goto port_found;
1da177e4
LT		 838 /* if special option:
839 * try to configure as Ethernet only.
840 * .... */
841 }
842 printk(KNOT_XIRC "no ports available\n");
843 } else {
1da177e4
LT		 844 link->io.NumPorts1 = 16;
845 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
846 link->io.BasePort1 = ioaddr;
fba395ee 847 if (!(err=pcmcia_request_io(link, &link->io)))
1da177e4
LT		 848 goto port_found;
849 }
850 link->io.BasePort1 = 0; /* let CS decide */
dd0fab5b 851 if ((err=pcmcia_request_io(link, &link->io)))
1da177e4 852 goto config_error;
1da177e4
LT		 853 }
854 port_found:
855 if (err)
856 goto config_error;
857
858 /****************
859 * Now allocate an interrupt line. Note that this does not
860 * actually assign a handler to the interrupt.
861 */
eb14120f 862 if ((err=pcmcia_request_irq(link, xirc2ps_interrupt)))
1da177e4 863 goto config_error;
1da177e4
LT		 864
865 /****************
866 * This actually configures the PCMCIA socket -- setting up
867 * the I/O windows and the interrupt mapping.
868 */
dd0fab5b 869 if ((err=pcmcia_request_configuration(link, &link->conf)))
1da177e4 870 goto config_error;
1da177e4
LT		 871
872 if (local->dingo) {
873 conf_reg_t reg;
874 win_req_t req;
875 memreq_t mem;
876
877 /* Reset the modem's BAR to the correct value
878 * This is necessary because in the RequestConfiguration call,
879 * the base address of the ethernet port (BasePort1) is written
880 * to the BAR registers of the modem.
881 */
882 reg.Action = CS_WRITE;
883 reg.Offset = CISREG_IOBASE_0;
884 reg.Value = link->io.BasePort2 & 0xff;
dd0fab5b 885 if ((err = pcmcia_access_configuration_register(link, &reg)))
1da177e4 886 goto config_error;
1da177e4
LT		 887 reg.Action = CS_WRITE;
888 reg.Offset = CISREG_IOBASE_1;
889 reg.Value = (link->io.BasePort2 >> 8) & 0xff;
dd0fab5b 890 if ((err = pcmcia_access_configuration_register(link, &reg)))
1da177e4 891 goto config_error;
1da177e4
LT		 892
893 /* There is no config entry for the Ethernet part which
894 * is at 0x0800. So we allocate a window into the attribute
895 * memory and write direct to the CIS registers
896 */
897 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
898 req.Base = req.Size = 0;
899 req.AccessSpeed = 0;
6838b03f 900 if ((err = pcmcia_request_window(link, &req, &link->win)))
1da177e4 901 goto config_error;
dd0fab5b 902
1da177e4
LT		 903 local->dingo_ccr = ioremap(req.Base,0x1000) + 0x0800;
904 mem.CardOffset = 0x0;
905 mem.Page = 0;
868575d1 906 if ((err = pcmcia_map_mem_page(link, link->win, &mem)))
1da177e4 907 goto config_error;
1da177e4
LT		 908
909 /* Setup the CCRs; there are no infos in the CIS about the Ethernet
910 * part.
911 */
912 writeb(0x47, local->dingo_ccr + CISREG_COR);
913 ioaddr = link->io.BasePort1;
914 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
915 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
916
917 #if 0
918 {
919 u_char tmp;
920 printk(KERN_INFO "ECOR:");
921 for (i=0; i < 7; i++) {
922 tmp = readb(local->dingo_ccr + i*2);
923 printk(" %02x", tmp);
924 }
925 printk("\n");
926 printk(KERN_INFO "DCOR:");
927 for (i=0; i < 4; i++) {
928 tmp = readb(local->dingo_ccr + 0x20 + i*2);
929 printk(" %02x", tmp);
930 }
931 printk("\n");
932 printk(KERN_INFO "SCOR:");
933 for (i=0; i < 10; i++) {
934 tmp = readb(local->dingo_ccr + 0x40 + i*2);
935 printk(" %02x", tmp);
936 }
937 printk("\n");
938 }
939 #endif
940
941 writeb(0x01, local->dingo_ccr + 0x20);
942 writeb(0x0c, local->dingo_ccr + 0x22);
943 writeb(0x00, local->dingo_ccr + 0x24);
944 writeb(0x00, local->dingo_ccr + 0x26);
945 writeb(0x00, local->dingo_ccr + 0x28);
946 }
947
948 /* The if_port symbol can be set when the module is loaded */
949 local->probe_port=0;
950 if (!if_port) {
951 local->probe_port = dev->if_port = 1;
952 } else if ((if_port >= 1 && if_port <= 2) ||
953 (local->mohawk && if_port==4))
954 dev->if_port = if_port;
955 else
956 printk(KNOT_XIRC "invalid if_port requested\n");
957
958 /* we can now register the device with the net subsystem */
eb14120f 959 dev->irq = link->irq;
1da177e4
LT		 960 dev->base_addr = link->io.BasePort1;
961
962 if (local->dingo)
963 do_reset(dev, 1); /* a kludge to make the cem56 work */
964
dd2e5a15 965 SET_NETDEV_DEV(dev, &link->dev);
1da177e4
LT		 966
967 if ((err=register_netdev(dev))) {
968 printk(KNOT_XIRC "register_netdev() failed\n");
1da177e4
LT		 969 goto config_error;
970 }
971
1da177e4 972 /* give some infos about the hardware */
e174961c 973 printk(KERN_INFO "%s: %s: port %#3lx, irq %d, hwaddr %pM\n",
0795af57 974 dev->name, local->manf_str,(u_long)dev->base_addr, (int)dev->irq,
e174961c 975 dev->dev_addr);
1da177e4 976
15b99ac1 977 return 0;
1da177e4
LT		 978
979 config_error:
1da177e4 980 xirc2ps_release(link);
15b99ac1 981 return -ENODEV;
1da177e4 982
1da177e4 983 failure:
15b99ac1 984 return -ENODEV;
1da177e4
LT		 985} /* xirc2ps_config */
986
987/****************
988 * After a card is removed, xirc2ps_release() will unregister the net
989 * device, and release the PCMCIA configuration. If the device is
990 * still open, this will be postponed until it is closed.
991 */
992static void
fba395ee 993xirc2ps_release(struct pcmcia_device *link)
1da177e4 994{
dd0fab5b 995 dev_dbg(&link->dev, "release\n");
1da177e4 996
5f2a71fc
DB		 997 if (link->win) {
998 struct net_device *dev = link->priv;
999 local_info_t *local = netdev_priv(dev);
1000 if (local->dingo)
1001 iounmap(local->dingo_ccr - 0x0800);
1002 }
fba395ee 1003 pcmcia_disable_device(link);
1da177e4
LT		 1004} /* xirc2ps_release */
1005
1006/*====================================================================*/
1007
98e4c28b 1008
fba395ee 1009static int xirc2ps_suspend(struct pcmcia_device *link)
98e4c28b 1010{
98e4c28b
DB		 1011 struct net_device *dev = link->priv;
1012
e2d40963
DB		 1013 if (link->open) {
1014 netif_device_detach(dev);
1015 do_powerdown(dev);
98e4c28b
DB		 1016 }
1017
1018 return 0;
1019}
1020
fba395ee 1021static int xirc2ps_resume(struct pcmcia_device *link)
98e4c28b 1022{
98e4c28b
DB		 1023 struct net_device *dev = link->priv;
1024
e2d40963 1025 if (link->open) {
8661bb5b
DB		 1026 do_reset(dev,1);
1027 netif_device_attach(dev);
98e4c28b
DB		 1028 }
1029
1030 return 0;
1031}
1032
1da177e4
LT		 1033
1034/*====================================================================*/
1035
1036/****************
1037 * This is the Interrupt service route.
1038 */
1039static irqreturn_t
7d12e780 1040xirc2ps_interrupt(int irq, void *dev_id)
1da177e4
LT		 1041{
1042 struct net_device *dev = (struct net_device *)dev_id;
1043 local_info_t *lp = netdev_priv(dev);
906da809 1044 unsigned int ioaddr;
1da177e4
LT		 1045 u_char saved_page;
1046 unsigned bytes_rcvd;
1047 unsigned int_status, eth_status, rx_status, tx_status;
1048 unsigned rsr, pktlen;
1049 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
1050 * is this something to worry about?
1051 * -- on a laptop?
1052 */
1053
1054 if (!netif_device_present(dev))
1055 return IRQ_HANDLED;
1056
1057 ioaddr = dev->base_addr;
1058 if (lp->mohawk) { /* must disable the interrupt */
1059 PutByte(XIRCREG_CR, 0);
1060 }
1061
dd0fab5b 1062 pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
1da177e4
LT		 1063
1064 saved_page = GetByte(XIRCREG_PR);
1065 /* Read the ISR to see whats the cause for the interrupt.
1066 * This also clears the interrupt flags on CE2 cards
1067 */
1068 int_status = GetByte(XIRCREG_ISR);
1069 bytes_rcvd = 0;
1070 loop_entry:
1071 if (int_status == 0xff) { /* card may be ejected */
dd0fab5b 1072 pr_debug("%s: interrupt %d for dead card\n", dev->name, irq);
1da177e4
LT		 1073 goto leave;
1074 }
1075 eth_status = GetByte(XIRCREG_ESR);
1076
1077 SelectPage(0x40);
1078 rx_status = GetByte(XIRCREG40_RXST0);
1079 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
1080 tx_status = GetByte(XIRCREG40_TXST0);
1081 tx_status |= GetByte(XIRCREG40_TXST1) << 8;
1082 PutByte(XIRCREG40_TXST0, 0);
1083 PutByte(XIRCREG40_TXST1, 0);
1084
dd0fab5b 1085 pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
1da177e4
LT		 1086 dev->name, int_status, eth_status, rx_status, tx_status);
1087
1088 /***** receive section ******/
1089 SelectPage(0);
1090 while (eth_status & FullPktRcvd) {
1091 rsr = GetByte(XIRCREG0_RSR);
1092 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
1093 /* too many bytes received during this int, drop the rest of the
1094 * packets */
6394d7c9 1095 dev->stats.rx_dropped++;
dd0fab5b 1096 pr_debug("%s: RX drop, too much done\n", dev->name);
1da177e4
LT		 1097 } else if (rsr & PktRxOk) {
1098 struct sk_buff *skb;
1099
1100 pktlen = GetWord(XIRCREG0_RBC);
1101 bytes_rcvd += pktlen;
1102
dd0fab5b 1103 pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen);
1da177e4
LT		 1104
1105 skb = dev_alloc_skb(pktlen+3); /* 1 extra so we can use insw */
1106 if (!skb) {
1107 printk(KNOT_XIRC "low memory, packet dropped (size=%u)\n",
1108 pktlen);
6394d7c9 1109 dev->stats.rx_dropped++;
1da177e4
LT		 1110 } else { /* okay get the packet */
1111 skb_reserve(skb, 2);
1112 if (lp->silicon == 0 ) { /* work around a hardware bug */
1113 unsigned rhsa; /* receive start address */
1114
1115 SelectPage(5);
1116 rhsa = GetWord(XIRCREG5_RHSA0);
1117 SelectPage(0);
1118 rhsa += 3; /* skip control infos */
1119 if (rhsa >= 0x8000)
1120 rhsa = 0;
1121 if (rhsa + pktlen > 0x8000) {
1122 unsigned i;
1123 u_char *buf = skb_put(skb, pktlen);
1124 for (i=0; i < pktlen ; i++, rhsa++) {
1125 buf[i] = GetByte(XIRCREG_EDP);
1126 if (rhsa == 0x8000) {
1127 rhsa = 0;
1128 i--;
1129 }
1130 }
1131 } else {
1132 insw(ioaddr+XIRCREG_EDP,
1133 skb_put(skb, pktlen), (pktlen+1)>>1);
1134 }
1135 }
1136 #if 0
1137 else if (lp->mohawk) {
1138 /* To use this 32 bit access we should use
1139 * a manual optimized loop
1140 * Also the words are swapped, we can get more
1141 * performance by using 32 bit access and swapping
1142 * the words in a register. Will need this for cardbus
1143 *
1144 * Note: don't forget to change the ALLOC_SKB to .. +3
1145 */
1146 unsigned i;
1147 u_long *p = skb_put(skb, pktlen);
1148 register u_long a;
906da809 1149 unsigned int edpreg = ioaddr+XIRCREG_EDP-2;
1da177e4
LT		 1150 for (i=0; i < len ; i += 4, p++) {
1151 a = inl(edpreg);
1152 __asm__("rorl $16,%0\n\t"
1153 :"=q" (a)
1154 : "0" (a));
1155 *p = a;
1156 }
1157 }
1158 #endif
1159 else {
1160 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
1161 (pktlen+1)>>1);
1162 }
1163 skb->protocol = eth_type_trans(skb, dev);
1da177e4 1164 netif_rx(skb);
6394d7c9
SH		 1165 dev->stats.rx_packets++;
1166 dev->stats.rx_bytes += pktlen;
1da177e4 1167 if (!(rsr & PhyPkt))
6394d7c9 1168 dev->stats.multicast++;
1da177e4
LT		 1169 }
1170 } else { /* bad packet */
dd0fab5b 1171 pr_debug("rsr=%#02x\n", rsr);
1da177e4
LT		 1172 }
1173 if (rsr & PktTooLong) {
6394d7c9 1174 dev->stats.rx_frame_errors++;
dd0fab5b 1175 pr_debug("%s: Packet too long\n", dev->name);
1da177e4
LT		 1176 }
1177 if (rsr & CRCErr) {
6394d7c9 1178 dev->stats.rx_crc_errors++;
dd0fab5b 1179 pr_debug("%s: CRC error\n", dev->name);
1da177e4
LT		 1180 }
1181 if (rsr & AlignErr) {
6394d7c9 1182 dev->stats.rx_fifo_errors++; /* okay ? */
dd0fab5b 1183 pr_debug("%s: Alignment error\n", dev->name);
1da177e4
LT		 1184 }
1185
1186 /* clear the received/dropped/error packet */
1187 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
1188
1189 /* get the new ethernet status */
1190 eth_status = GetByte(XIRCREG_ESR);
1191 }
1192 if (rx_status & 0x10) { /* Receive overrun */
6394d7c9 1193 dev->stats.rx_over_errors++;
1da177e4 1194 PutByte(XIRCREG_CR, ClearRxOvrun);
dd0fab5b 1195 pr_debug("receive overrun cleared\n");
1da177e4
LT		 1196 }
1197
1198 /***** transmit section ******/
1199 if (int_status & PktTxed) {
1200 unsigned n, nn;
1201
1202 n = lp->last_ptr_value;
1203 nn = GetByte(XIRCREG0_PTR);
1204 lp->last_ptr_value = nn;
1205 if (nn < n) /* rollover */
6394d7c9 1206 dev->stats.tx_packets += 256 - n;
1da177e4 1207 else if (n == nn) { /* happens sometimes - don't know why */
dd0fab5b 1208 pr_debug("PTR not changed?\n");
1da177e4 1209 } else
6394d7c9 1210 dev->stats.tx_packets += lp->last_ptr_value - n;
1da177e4
LT		 1211 netif_wake_queue(dev);
1212 }
1213 if (tx_status & 0x0002) { /* Execessive collissions */
dd0fab5b 1214 pr_debug("tx restarted due to execssive collissions\n");
1da177e4
LT		 1215 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
1216 }
1217 if (tx_status & 0x0040)
6394d7c9 1218 dev->stats.tx_aborted_errors++;
1da177e4
LT		 1219
1220 /* recalculate our work chunk so that we limit the duration of this
1221 * ISR to about 1/10 of a second.
1222 * Calculate only if we received a reasonable amount of bytes.
1223 */
1224 if (bytes_rcvd > 1000) {
1225 u_long duration = jiffies - start_ticks;
1226
1227 if (duration >= HZ/10) { /* if more than about 1/10 second */
1228 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
1229 if (maxrx_bytes < 2000)
1230 maxrx_bytes = 2000;
1231 else if (maxrx_bytes > 22000)
1232 maxrx_bytes = 22000;
dd0fab5b 1233 pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n",
1da177e4
LT		 1234 maxrx_bytes, bytes_rcvd, duration);
1235 } else if (!duration && maxrx_bytes < 22000) {
1236 /* now much faster */
1237 maxrx_bytes += 2000;
1238 if (maxrx_bytes > 22000)
1239 maxrx_bytes = 22000;
dd0fab5b 1240 pr_debug("set maxrx=%u\n", maxrx_bytes);
1da177e4
LT		 1241 }
1242 }
1243
1244 leave:
1245 if (lockup_hack) {
1246 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
1247 goto loop_entry;
1248 }
1249 SelectPage(saved_page);
1250 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
1251 /* Instead of dropping packets during a receive, we could
1252 * force an interrupt with this command:
1253 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
1254 */
1255 return IRQ_HANDLED;
1256} /* xirc2ps_interrupt */
1257
1258/*====================================================================*/
1259
1260static void
c4028958 1261xirc2ps_tx_timeout_task(struct work_struct *work)
1da177e4 1262{
c4028958
DH		 1263 local_info_t *local =
1264 container_of(work, local_info_t, tx_timeout_task);
1265 struct net_device *dev = local->dev;
1da177e4
LT		 1266 /* reset the card */
1267 do_reset(dev,1);
1268 dev->trans_start = jiffies;
1269 netif_wake_queue(dev);
1270}
1271
9a469abe 1272static void
ed4cb133 1273xirc_tx_timeout(struct net_device *dev)
9a469abe
JA		 1274{
1275 local_info_t *lp = netdev_priv(dev);
6394d7c9 1276 dev->stats.tx_errors++;
9a469abe
JA		 1277 printk(KERN_NOTICE "%s: transmit timed out\n", dev->name);
1278 schedule_work(&lp->tx_timeout_task);
1279}
1280
dbf02fae 1281static netdev_tx_t
1da177e4
LT		 1282do_start_xmit(struct sk_buff *skb, struct net_device *dev)
1283{
1284 local_info_t *lp = netdev_priv(dev);
906da809 1285 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1286 int okay;
1287 unsigned freespace;
da4f5ccf 1288 unsigned pktlen = skb->len;
1da177e4 1289
dd0fab5b 1290 pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n",
1da177e4
LT		 1291 skb, dev, pktlen);
1292
1293
1294 /* adjust the packet length to min. required
1295 * and hope that the buffer is large enough
1296 * to provide some random data.
1297 * fixme: For Mohawk we can change this by sending
1298 * a larger packetlen than we actually have; the chip will
1299 * pad this in his buffer with random bytes
1300 */
1301 if (pktlen < ETH_ZLEN)
1302 {
5b057c6b 1303 if (skb_padto(skb, ETH_ZLEN))
6ed10654 1304 return NETDEV_TX_OK;
1da177e4
LT		 1305 pktlen = ETH_ZLEN;
1306 }
1307
1308 netif_stop_queue(dev);
1309 SelectPage(0);
1310 PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
1311 freespace = GetWord(XIRCREG0_TSO);
1312 okay = freespace & 0x8000;
1313 freespace &= 0x7fff;
1314 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
1315 okay = pktlen +2 < freespace;
dd0fab5b 1316 pr_debug("%s: avail. tx space=%u%s\n",
1da177e4
LT		 1317 dev->name, freespace, okay ? " (okay)":" (not enough)");
1318 if (!okay) { /* not enough space */
5b548140 1319 return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */
1da177e4
LT		 1320 }
1321 /* send the packet */
1322 PutWord(XIRCREG_EDP, (u_short)pktlen);
1323 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
1324 if (pktlen & 1)
1325 PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
1326
1327 if (lp->mohawk)
1328 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
1329
1330 dev_kfree_skb (skb);
1331 dev->trans_start = jiffies;
6394d7c9 1332 dev->stats.tx_bytes += pktlen;
1da177e4 1333 netif_start_queue(dev);
6ed10654 1334 return NETDEV_TX_OK;
1da177e4
LT		 1335}
1336
91fea585
JP		 1337struct set_address_info {
1338 int reg_nr;
1339 int page_nr;
1340 int mohawk;
1341 unsigned int ioaddr;
1342};
1343
1344static void set_address(struct set_address_info *sa_info, char *addr)
1345{
1346 unsigned int ioaddr = sa_info->ioaddr;
1347 int i;
1348
1349 for (i = 0; i < 6; i++) {
1350 if (sa_info->reg_nr > 15) {
1351 sa_info->reg_nr = 8;
1352 sa_info->page_nr++;
1353 SelectPage(sa_info->page_nr);
1354 }
1355 if (sa_info->mohawk)
1356 PutByte(sa_info->reg_nr++, addr[5 - i]);
1357 else
1358 PutByte(sa_info->reg_nr++, addr[i]);
1359 }
1360}
1361
1da177e4
LT		 1362/****************
1363 * Set all addresses: This first one is the individual address,
1364 * the next 9 addresses are taken from the multicast list and
1365 * the rest is filled with the individual address.
1366 */
91fea585 1367static void set_addresses(struct net_device *dev)
1da177e4 1368{
91fea585
JP		 1369 unsigned int ioaddr = dev->base_addr;
1370 local_info_t *lp = netdev_priv(dev);
1371 struct dev_mc_list *dmi;
1372 struct set_address_info sa_info;
1373 int i;
1da177e4 1374
91fea585
JP		 1375 /*
1376 * Setup the info structure so that by first set_address call it will do
1377 * SelectPage with the right page number. Hence these ones here.
1378 */
1379 sa_info.reg_nr = 15 + 1;
1380 sa_info.page_nr = 0x50 - 1;
1381 sa_info.mohawk = lp->mohawk;
1382 sa_info.ioaddr = ioaddr;
1383
1384 set_address(&sa_info, dev->dev_addr);
1385 i = 0;
1386 netdev_for_each_mc_addr(dmi, dev) {
1387 if (i++ == 9)
1388 break;
1389 set_address(&sa_info, dmi->dmi_addr);
1390 }
1391 while (i++ < 9)
1392 set_address(&sa_info, dev->dev_addr);
1393 SelectPage(0);
1da177e4
LT		 1394}
1395
1396/****************
1397 * Set or clear the multicast filter for this adaptor.
1398 * We can filter up to 9 addresses, if more are requested we set
1399 * multicast promiscuous mode.
1400 */
1401
1402static void
1403set_multicast_list(struct net_device *dev)
1404{
906da809 1405 unsigned int ioaddr = dev->base_addr;
43fc63dc 1406 unsigned value;
1da177e4
LT		 1407
1408 SelectPage(0x42);
43fc63dc
K		 1409 value = GetByte(XIRCREG42_SWC1) & 0xC0;
1410
1da177e4 1411 if (dev->flags & IFF_PROMISC) { /* snoop */
43fc63dc 1412 PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */
4cd24eaf 1413 } else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) {
43fc63dc 1414 PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */
4cd24eaf 1415 } else if (!netdev_mc_empty(dev)) {
1da177e4 1416 /* the chip can filter 9 addresses perfectly */
43fc63dc 1417 PutByte(XIRCREG42_SWC1, value | 0x01);
1da177e4
LT		 1418 SelectPage(0x40);
1419 PutByte(XIRCREG40_CMD0, Offline);
1420 set_addresses(dev);
1421 SelectPage(0x40);
1422 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1423 } else { /* standard usage */
43fc63dc 1424 PutByte(XIRCREG42_SWC1, value | 0x00);
1da177e4
LT		 1425 }
1426 SelectPage(0);
1427}
1428
1429static int
1430do_config(struct net_device *dev, struct ifmap *map)
1431{
1432 local_info_t *local = netdev_priv(dev);
1433
dd0fab5b 1434 pr_debug("do_config(%p)\n", dev);
1da177e4
LT		 1435 if (map->port != 255 && map->port != dev->if_port) {
1436 if (map->port > 4)
1437 return -EINVAL;
1438 if (!map->port) {
1439 local->probe_port = 1;
1440 dev->if_port = 1;
1441 } else {
1442 local->probe_port = 0;
1443 dev->if_port = map->port;
1444 }
1445 printk(KERN_INFO "%s: switching to %s port\n",
1446 dev->name, if_names[dev->if_port]);
1447 do_reset(dev,1); /* not the fine way :-) */
1448 }
1449 return 0;
1450}
1451
1452/****************
1453 * Open the driver
1454 */
1455static int
1456do_open(struct net_device *dev)
1457{
1458 local_info_t *lp = netdev_priv(dev);
fba395ee 1459 struct pcmcia_device *link = lp->p_dev;
1da177e4 1460
dd0fab5b 1461 dev_dbg(&link->dev, "do_open(%p)\n", dev);
1da177e4
LT		 1462
1463 /* Check that the PCMCIA card is still here. */
1464 /* Physical device present signature. */
9940ec36 1465 if (!pcmcia_dev_present(link))
1da177e4
LT		 1466 return -ENODEV;
1467
1468 /* okay */
1469 link->open++;
1470
1471 netif_start_queue(dev);
1472 do_reset(dev,1);
1473
1474 return 0;
1475}
1476
1477static void netdev_get_drvinfo(struct net_device *dev,
1478 struct ethtool_drvinfo *info)
1479{
1480 strcpy(info->driver, "xirc2ps_cs");
1481 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
1482}
1483
7282d491 1484static const struct ethtool_ops netdev_ethtool_ops = {
1da177e4
LT		 1485 .get_drvinfo = netdev_get_drvinfo,
1486};
1487
1488static int
1489do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1490{
1491 local_info_t *local = netdev_priv(dev);
906da809 1492 unsigned int ioaddr = dev->base_addr;
0fa0ee05 1493 struct mii_ioctl_data *data = if_mii(rq);
1da177e4 1494
dd0fab5b 1495 pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
1da177e4 1496 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
0fa0ee05 1497 data->phy_id, data->reg_num, data->val_in, data->val_out);
1da177e4
LT		 1498
1499 if (!local->mohawk)
1500 return -EOPNOTSUPP;
1501
1502 switch(cmd) {
1503 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
0fa0ee05 1504 data->phy_id = 0; /* we have only this address */
93b1fae4 1505 /* fall through */
1da177e4 1506 case SIOCGMIIREG: /* Read the specified MII register. */
0fa0ee05
BH		 1507 data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f,
1508 data->reg_num & 0x1f);
1da177e4
LT		 1509 break;
1510 case SIOCSMIIREG: /* Write the specified MII register */
0fa0ee05
BH		 1511 mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in,
1512 16);
1da177e4
LT		 1513 break;
1514 default:
1515 return -EOPNOTSUPP;
1516 }
1517 return 0;
1518}
1519
1520static void
1521hardreset(struct net_device *dev)
1522{
1523 local_info_t *local = netdev_priv(dev);
906da809 1524 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1525
1526 SelectPage(4);
1527 udelay(1);
1528 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1529 msleep(40); /* wait 40 msec */
1530 if (local->mohawk)
1531 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
1532 else
1533 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
1534 msleep(20); /* wait 20 msec */
1535}
1536
1537static void
1538do_reset(struct net_device *dev, int full)
1539{
1540 local_info_t *local = netdev_priv(dev);
906da809 1541 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1542 unsigned value;
1543
dd0fab5b 1544 pr_debug("%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
1da177e4
LT		 1545
1546 hardreset(dev);
1547 PutByte(XIRCREG_CR, SoftReset); /* set */
1548 msleep(20); /* wait 20 msec */
1549 PutByte(XIRCREG_CR, 0); /* clear */
1550 msleep(40); /* wait 40 msec */
1551 if (local->mohawk) {
1552 SelectPage(4);
1553 /* set pin GP1 and GP2 to output (0x0c)
1554 * set GP1 to low to power up the ML6692 (0x00)
1555 * set GP2 to high to power up the 10Mhz chip (0x02)
1556 */
1557 PutByte(XIRCREG4_GPR0, 0x0e);
1558 }
1559
1560 /* give the circuits some time to power up */
1561 msleep(500); /* about 500ms */
1562
1563 local->last_ptr_value = 0;
1564 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
1565 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
1566
1567 if (local->probe_port) {
1568 if (!local->mohawk) {
1569 SelectPage(4);
1570 PutByte(XIRCREG4_GPR0, 4);
1571 local->probe_port = 0;
1572 }
1573 } else if (dev->if_port == 2) { /* enable 10Base2 */
1574 SelectPage(0x42);
1575 PutByte(XIRCREG42_SWC1, 0xC0);
1576 } else { /* enable 10BaseT */
1577 SelectPage(0x42);
1578 PutByte(XIRCREG42_SWC1, 0x80);
1579 }
1580 msleep(40); /* wait 40 msec to let it complete */
1581
dd0fab5b
DB		 1582 #if 0
1583 {
1da177e4
LT		 1584 SelectPage(0);
1585 value = GetByte(XIRCREG_ESR); /* read the ESR */
1586 printk(KERN_DEBUG "%s: ESR is: %#02x\n", dev->name, value);
1587 }
1588 #endif
1589
1590 /* setup the ECR */
1591 SelectPage(1);
1592 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
1593 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
1594 value = GetByte(XIRCREG1_ECR);
1595 #if 0
1596 if (local->mohawk)
1597 value |= DisableLinkPulse;
1598 PutByte(XIRCREG1_ECR, value);
1599 #endif
dd0fab5b 1600 pr_debug("%s: ECR is: %#02x\n", dev->name, value);
1da177e4
LT		 1601
1602 SelectPage(0x42);
1603 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
1604
1605 if (local->silicon != 1) {
1606 /* set the local memory dividing line.
1607 * The comments in the sample code say that this is only
1608 * settable with the scipper version 2 which is revision 0.
1609 * Always for CE3 cards
1610 */
1611 SelectPage(2);
1612 PutWord(XIRCREG2_RBS, 0x2000);
1613 }
1614
1615 if (full)
1616 set_addresses(dev);
1617
1618 /* Hardware workaround:
1619 * The receive byte pointer after reset is off by 1 so we need
1620 * to move the offset pointer back to 0.
1621 */
1622 SelectPage(0);
1623 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
1624
1625 /* setup MAC IMRs and clear status registers */
1626 SelectPage(0x40); /* Bit 7 ... bit 0 */
1627 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
1628 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1629 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
1630 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
1631 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1632 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
1633
1634 if (full && local->mohawk && init_mii(dev)) {
1635 if (dev->if_port == 4 || local->dingo || local->new_mii) {
1636 printk(KERN_INFO "%s: MII selected\n", dev->name);
1637 SelectPage(2);
1638 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
1639 msleep(20);
1640 } else {
1641 printk(KERN_INFO "%s: MII detected; using 10mbs\n",
1642 dev->name);
1643 SelectPage(0x42);
1644 if (dev->if_port == 2) /* enable 10Base2 */
1645 PutByte(XIRCREG42_SWC1, 0xC0);
1646 else /* enable 10BaseT */
1647 PutByte(XIRCREG42_SWC1, 0x80);
1648 msleep(40); /* wait 40 msec to let it complete */
1649 }
1650 if (full_duplex)
1651 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
1652 } else { /* No MII */
1653 SelectPage(0);
1654 value = GetByte(XIRCREG_ESR); /* read the ESR */
1655 dev->if_port = (value & MediaSelect) ? 1 : 2;
1656 }
1657
1658 /* configure the LEDs */
1659 SelectPage(2);
1660 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
1661 PutByte(XIRCREG2_LED, 0x3b);
1662 else /* Coax: Not-Collision and Activity */
1663 PutByte(XIRCREG2_LED, 0x3a);
1664
1665 if (local->dingo)
1666 PutByte(0x0b, 0x04); /* 100 Mbit LED */
1667
1668 /* enable receiver and put the mac online */
1669 if (full) {
43fc63dc 1670 set_multicast_list(dev);
1da177e4
LT		 1671 SelectPage(0x40);
1672 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1673 }
1674
1675 /* setup Ethernet IMR and enable interrupts */
1676 SelectPage(1);
1677 PutByte(XIRCREG1_IMR0, 0xff);
1678 udelay(1);
1679 SelectPage(0);
1680 PutByte(XIRCREG_CR, EnableIntr);
1681 if (local->modem && !local->dingo) { /* do some magic */
1682 if (!(GetByte(0x10) & 0x01))
1683 PutByte(0x10, 0x11); /* unmask master-int bit */
1684 }
1685
1686 if (full)
1687 printk(KERN_INFO "%s: media %s, silicon revision %d\n",
1688 dev->name, if_names[dev->if_port], local->silicon);
1689 /* We should switch back to page 0 to avoid a bug in revision 0
1690 * where regs with offset below 8 can't be read after an access
1691 * to the MAC registers */
1692 SelectPage(0);
1693}
1694
1695/****************
1696 * Initialize the Media-Independent-Interface
1697 * Returns: True if we have a good MII
1698 */
1699static int
1700init_mii(struct net_device *dev)
1701{
1702 local_info_t *local = netdev_priv(dev);
906da809 1703 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1704 unsigned control, status, linkpartner;
1705 int i;
1706
1707 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
1708 dev->if_port = if_port;
1709 local->probe_port = 0;
1710 return 1;
1711 }
1712
1713 status = mii_rd(ioaddr, 0, 1);
1714 if ((status & 0xff00) != 0x7800)
1715 return 0; /* No MII */
1716
1717 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
1718
1719 if (local->probe_port)
1720 control = 0x1000; /* auto neg */
1721 else if (dev->if_port == 4)
1722 control = 0x2000; /* no auto neg, 100mbs mode */
1723 else
1724 control = 0x0000; /* no auto neg, 10mbs mode */
1725 mii_wr(ioaddr, 0, 0, control, 16);
1726 udelay(100);
1727 control = mii_rd(ioaddr, 0, 0);
1728
1729 if (control & 0x0400) {
1730 printk(KERN_NOTICE "%s can't take PHY out of isolation mode\n",
1731 dev->name);
1732 local->probe_port = 0;
1733 return 0;
1734 }
1735
1736 if (local->probe_port) {
1737 /* according to the DP83840A specs the auto negotiation process
1738 * may take up to 3.5 sec, so we use this also for our ML6692
1739 * Fixme: Better to use a timer here!
1740 */
1741 for (i=0; i < 35; i++) {
1742 msleep(100); /* wait 100 msec */
1743 status = mii_rd(ioaddr, 0, 1);
1744 if ((status & 0x0020) && (status & 0x0004))
1745 break;
1746 }
1747
1748 if (!(status & 0x0020)) {
1749 printk(KERN_INFO "%s: autonegotiation failed;"
1750 " using 10mbs\n", dev->name);
1751 if (!local->new_mii) {
1752 control = 0x0000;
1753 mii_wr(ioaddr, 0, 0, control, 16);
1754 udelay(100);
1755 SelectPage(0);
1756 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
1757 }
1758 } else {
1759 linkpartner = mii_rd(ioaddr, 0, 5);
1760 printk(KERN_INFO "%s: MII link partner: %04x\n",
1761 dev->name, linkpartner);
1762 if (linkpartner & 0x0080) {
1763 dev->if_port = 4;
1764 } else
1765 dev->if_port = 1;
1766 }
1767 }
1768
1769 return 1;
1770}
1771
1772static void
1773do_powerdown(struct net_device *dev)
1774{
1775
906da809 1776 unsigned int ioaddr = dev->base_addr;
1da177e4 1777
dd0fab5b 1778 pr_debug("do_powerdown(%p)\n", dev);
1da177e4
LT		 1779
1780 SelectPage(4);
1781 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1782 SelectPage(0);
1783}
1784
1785static int
1786do_stop(struct net_device *dev)
1787{
906da809 1788 unsigned int ioaddr = dev->base_addr;
1da177e4 1789 local_info_t *lp = netdev_priv(dev);
fba395ee 1790 struct pcmcia_device *link = lp->p_dev;
1da177e4 1791
dd0fab5b 1792 dev_dbg(&link->dev, "do_stop(%p)\n", dev);
1da177e4
LT		 1793
1794 if (!link)
1795 return -ENODEV;
1796
1797 netif_stop_queue(dev);
1798
1799 SelectPage(0);
1800 PutByte(XIRCREG_CR, 0); /* disable interrupts */
1801 SelectPage(0x01);
1802 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
1803 SelectPage(4);
1804 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1805 SelectPage(0);
1806
1807 link->open--;
1808 return 0;
1809}
1810
ff07bb19
DB		 1811static struct pcmcia_device_id xirc2ps_ids[] = {
1812 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a),
1813 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a),
1814 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),
1815 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),
1816 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),
1817 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),
1818 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),
d277ad0e 1819 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),
ff07bb19
DB		 1820 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a),
1821 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2),
1822 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37),
1823 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073),
1824 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3),
1825 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609),
1826 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46),
1827 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2),
1828 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769),
1829 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db),
1830 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf),
1831 /* also matches CFE-10 cards! */
1832 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */
1833 PCMCIA_DEVICE_NULL,
1834};
1835MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids);
1836
1837
1da177e4
LT		 1838static struct pcmcia_driver xirc2ps_cs_driver = {
1839 .owner = THIS_MODULE,
1840 .drv = {
1841 .name = "xirc2ps_cs",
1842 },
15b99ac1 1843 .probe = xirc2ps_probe,
cc3b4866 1844 .remove = xirc2ps_detach,
ff07bb19 1845 .id_table = xirc2ps_ids,
98e4c28b
DB		 1846 .suspend = xirc2ps_suspend,
1847 .resume = xirc2ps_resume,
1da177e4
LT		 1848};
1849
1850static int __init
1851init_xirc2ps_cs(void)
1852{
1853 return pcmcia_register_driver(&xirc2ps_cs_driver);
1854}
1855
1856static void __exit
1857exit_xirc2ps_cs(void)
1858{
1859 pcmcia_unregister_driver(&xirc2ps_cs_driver);
1da177e4
LT		 1860}
1861
1862module_init(init_xirc2ps_cs);
1863module_exit(exit_xirc2ps_cs);
1864
1865#ifndef MODULE
1866static int __init setup_xirc2ps_cs(char *str)
1867{
1868 /* if_port, full_duplex, do_sound, lockup_hack
1869 */
1870 int ints[10] = { -1 };
1871
1872 str = get_options(str, 9, ints);
1873
1874#define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
1875 MAYBE_SET(if_port, 3);
1876 MAYBE_SET(full_duplex, 4);
1877 MAYBE_SET(do_sound, 5);
1878 MAYBE_SET(lockup_hack, 6);
1879#undef MAYBE_SET
1880
9b41046c 1881 return 1;
1da177e4
LT		 1882}
1883
1884__setup("xirc2ps_cs=", setup_xirc2ps_cs);
1885#endif
Linux kernel - Deliverables
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