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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
LT		 300/****************
301 * A linked list of "instances" of the device. Each actual
302 * PCMCIA card corresponds to one device instance, and is described
fba395ee 303 * by one struct pcmcia_device structure (defined in ds.h).
1da177e4
LT		 304 *
305 * You may not want to use a linked list for this -- for example, the
fba395ee 306 * memory card driver uses an array of struct pcmcia_device pointers, where minor
1da177e4
LT		 307 * device numbers are used to derive the corresponding array index.
308 */
309
1da177e4 310/****************
1da177e4
LT		 311 * A driver needs to provide a dev_node_t structure for each device
312 * on a card. In some cases, there is only one device per card (for
313 * example, ethernet cards, modems). In other cases, there may be
314 * many actual or logical devices (SCSI adapters, memory cards with
315 * multiple partitions). The dev_node_t structures need to be kept
fba395ee 316 * in a linked list starting at the 'dev' field of a struct pcmcia_device
1da177e4
LT		 317 * structure. We allocate them in the card's private data structure,
318 * because they generally can't be allocated dynamically.
319 */
320
321typedef struct local_info_t {
c4028958 322 struct net_device *dev;
fd238232 323 struct pcmcia_device *p_dev;
1da177e4 324 dev_node_t node;
6394d7c9 325
1da177e4
LT		 326 int card_type;
327 int probe_port;
328 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */
329 int mohawk; /* a CE3 type card */
330 int dingo; /* a CEM56 type card */
331 int new_mii; /* has full 10baseT/100baseT MII */
332 int modem; /* is a multi function card (i.e with a modem) */
333 void __iomem *dingo_ccr; /* only used for CEM56 cards */
334 unsigned last_ptr_value; /* last packets transmitted value */
335 const char *manf_str;
9a469abe 336 struct work_struct tx_timeout_task;
1da177e4
LT		 337} local_info_t;
338
339/****************
340 * Some more prototypes
341 */
dbf02fae
SH		 342static netdev_tx_t do_start_xmit(struct sk_buff *skb,
343 struct net_device *dev);
ed4cb133 344static void xirc_tx_timeout(struct net_device *dev);
c4028958 345static void xirc2ps_tx_timeout_task(struct work_struct *work);
1da177e4
LT		 346static void set_addresses(struct net_device *dev);
347static void set_multicast_list(struct net_device *dev);
dddfbd82 348static int set_card_type(struct pcmcia_device *link);
1da177e4
LT		 349static int do_config(struct net_device *dev, struct ifmap *map);
350static int do_open(struct net_device *dev);
351static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
7282d491 352static const struct ethtool_ops netdev_ethtool_ops;
1da177e4
LT		 353static void hardreset(struct net_device *dev);
354static void do_reset(struct net_device *dev, int full);
355static int init_mii(struct net_device *dev);
356static void do_powerdown(struct net_device *dev);
357static int do_stop(struct net_device *dev);
358
359/*=============== Helper functions =========================*/
1da177e4
LT		 360#define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR)
361#define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))
362#define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))
363#define PutByte(reg,value) outb((value), ioaddr+(reg))
364#define PutWord(reg,value) outw((value), ioaddr+(reg))
365
366/*====== Functions used for debugging =================================*/
dd0fab5b 367#if 0 /* reading regs may change system status */
1da177e4
LT		 368static void
369PrintRegisters(struct net_device *dev)
370{
906da809 371 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 372
373 if (pc_debug > 1) {
374 int i, page;
375
376 printk(KDBG_XIRC "Register common: ");
377 for (i = 0; i < 8; i++)
378 printk(" %2.2x", GetByte(i));
379 printk("\n");
380 for (page = 0; page <= 8; page++) {
381 printk(KDBG_XIRC "Register page %2x: ", page);
382 SelectPage(page);
383 for (i = 8; i < 16; i++)
384 printk(" %2.2x", GetByte(i));
385 printk("\n");
386 }
387 for (page=0x40 ; page <= 0x5f; page++) {
8e95a202
JP		 388 if (page == 0x43 || (page >= 0x46 && page <= 0x4f) ||
389 (page >= 0x51 && page <=0x5e))
390 continue;
1da177e4
LT		 391 printk(KDBG_XIRC "Register page %2x: ", page);
392 SelectPage(page);
393 for (i = 8; i < 16; i++)
394 printk(" %2.2x", GetByte(i));
395 printk("\n");
396 }
397 }
398}
dd0fab5b 399#endif /* 0 */
1da177e4
LT		 400
401/*============== MII Management functions ===============*/
402
403/****************
404 * Turn around for read
405 */
406static void
906da809 407mii_idle(unsigned int ioaddr)
1da177e4
LT		 408{
409 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */
410 udelay(1);
411 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */
412 udelay(1);
413}
414
415/****************
416 * Write a bit to MDI/O
417 */
418static void
906da809 419mii_putbit(unsigned int ioaddr, unsigned data)
1da177e4
LT		 420{
421 #if 1
422 if (data) {
423 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */
424 udelay(1);
425 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */
426 udelay(1);
427 } else {
428 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */
429 udelay(1);
430 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */
431 udelay(1);
432 }
433 #else
434 if (data) {
435 PutWord(XIRCREG2_GPR2-1, 0x0e0e);
436 udelay(1);
437 PutWord(XIRCREG2_GPR2-1, 0x0f0f);
438 udelay(1);
439 } else {
440 PutWord(XIRCREG2_GPR2-1, 0x0c0c);
441 udelay(1);
442 PutWord(XIRCREG2_GPR2-1, 0x0d0d);
443 udelay(1);
444 }
445 #endif
446}
447
448/****************
449 * Get a bit from MDI/O
450 */
451static int
906da809 452mii_getbit(unsigned int ioaddr)
1da177e4
LT		 453{
454 unsigned d;
455
456 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */
457 udelay(1);
458 d = GetByte(XIRCREG2_GPR2); /* read MDIO */
459 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */
460 udelay(1);
461 return d & 0x20; /* read MDIO */
462}
463
464static void
906da809 465mii_wbits(unsigned int ioaddr, unsigned data, int len)
1da177e4
LT		 466{
467 unsigned m = 1 << (len-1);
468 for (; m; m >>= 1)
469 mii_putbit(ioaddr, data & m);
470}
471
472static unsigned
906da809 473mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg)
1da177e4
LT		 474{
475 int i;
476 unsigned data=0, m;
477
478 SelectPage(2);
479 for (i=0; i < 32; i++) /* 32 bit preamble */
480 mii_putbit(ioaddr, 1);
481 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */
482 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
483 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */
484 mii_idle(ioaddr); /* turn around */
485 mii_getbit(ioaddr);
486
487 for (m = 1<<15; m; m >>= 1)
488 if (mii_getbit(ioaddr))
489 data |= m;
490 mii_idle(ioaddr);
491 return data;
492}
493
494static void
906da809
OJ		 495mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data,
496 int len)
1da177e4
LT		 497{
498 int i;
499
500 SelectPage(2);
501 for (i=0; i < 32; i++) /* 32 bit preamble */
502 mii_putbit(ioaddr, 1);
503 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */
504 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
505 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */
506 mii_putbit(ioaddr, 1); /* turn around */
507 mii_putbit(ioaddr, 0);
508 mii_wbits(ioaddr, data, len); /* And write the data */
509 mii_idle(ioaddr);
510}
511
512/*============= Main bulk of functions =========================*/
513
0cd6e828
SH		 514static const struct net_device_ops netdev_ops = {
515 .ndo_open = do_open,
516 .ndo_stop = do_stop,
517 .ndo_start_xmit = do_start_xmit,
518 .ndo_tx_timeout = xirc_tx_timeout,
519 .ndo_set_config = do_config,
520 .ndo_do_ioctl = do_ioctl,
521 .ndo_set_multicast_list = set_multicast_list,
522 .ndo_change_mtu = eth_change_mtu,
523 .ndo_set_mac_address = eth_mac_addr,
524 .ndo_validate_addr = eth_validate_addr,
525};
526
1da177e4
LT		 527/****************
528 * xirc2ps_attach() creates an "instance" of the driver, allocating
529 * local data structures for one device. The device is registered
530 * with Card Services.
531 *
532 * The dev_link structure is initialized, but we don't actually
533 * configure the card at this point -- we wait until we receive a
534 * card insertion event.
535 */
536
f8cfa618 537static int
15b99ac1 538xirc2ps_probe(struct pcmcia_device *link)
1da177e4 539{
1da177e4
LT		 540 struct net_device *dev;
541 local_info_t *local;
1da177e4 542
dd0fab5b 543 dev_dbg(&link->dev, "attach()\n");
1da177e4
LT		 544
545 /* Allocate the device structure */
546 dev = alloc_etherdev(sizeof(local_info_t));
547 if (!dev)
f8cfa618 548 return -ENOMEM;
1da177e4 549 local = netdev_priv(dev);
c4028958 550 local->dev = dev;
fba395ee 551 local->p_dev = link;
1da177e4
LT		 552 link->priv = dev;
553
554 /* General socket configuration */
555 link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4
LT		 556 link->conf.IntType = INT_MEMORY_AND_IO;
557 link->conf.ConfigIndex = 1;
1da177e4 558 link->irq.Handler = xirc2ps_interrupt;
1da177e4
LT		 559
560 /* Fill in card specific entries */
0cd6e828
SH		 561 dev->netdev_ops = &netdev_ops;
562 dev->ethtool_ops = &netdev_ethtool_ops;
1da177e4 563 dev->watchdog_timeo = TX_TIMEOUT;
c4028958 564 INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task);
1da177e4 565
15b99ac1 566 return xirc2ps_config(link);
1da177e4
LT		 567} /* xirc2ps_attach */
568
569/****************
570 * This deletes a driver "instance". The device is de-registered
571 * with Card Services. If it has been released, all local data
572 * structures are freed. Otherwise, the structures will be freed
573 * when the device is released.
574 */
575
576static void
fba395ee 577xirc2ps_detach(struct pcmcia_device *link)
1da177e4
LT		 578{
579 struct net_device *dev = link->priv;
1da177e4 580
dd0fab5b 581 dev_dbg(&link->dev, "detach\n");
1da177e4 582
fd238232 583 if (link->dev_node)
1da177e4
LT		 584 unregister_netdev(dev);
585
e2d40963 586 xirc2ps_release(link);
1da177e4 587
1da177e4
LT		 588 free_netdev(dev);
589} /* xirc2ps_detach */
590
591/****************
592 * Detect the type of the card. s is the buffer with the data of tuple 0x20
593 * Returns: 0 := not supported
594 * mediaid=11 and prodid=47
595 * Media-Id bits:
596 * Ethernet 0x01
597 * Tokenring 0x02
598 * Arcnet 0x04
599 * Wireless 0x08
600 * Modem 0x10
601 * GSM only 0x20
602 * Prod-Id bits:
603 * Pocket 0x10
604 * External 0x20
605 * Creditcard 0x40
606 * Cardbus 0x80
607 *
608 */
609static int
dddfbd82 610set_card_type(struct pcmcia_device *link)
1da177e4
LT		 611{
612 struct net_device *dev = link->priv;
613 local_info_t *local = netdev_priv(dev);
dddfbd82
DB		 614 u8 *buf;
615 unsigned int cisrev, mediaid, prodid;
616 size_t len;
617
618 len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf);
619 if (len < 5) {
620 dev_err(&link->dev, "invalid CIS -- sorry\n");
621 return 0;
622 }
1da177e4 623
dddfbd82
DB		 624 cisrev = buf[2];
625 mediaid = buf[3];
626 prodid = buf[4];
1da177e4 627
dd0fab5b 628 dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n",
1da177e4
LT		 629 cisrev, mediaid, prodid);
630
631 local->mohawk = 0;
632 local->dingo = 0;
633 local->modem = 0;
634 local->card_type = XIR_UNKNOWN;
635 if (!(prodid & 0x40)) {
636 printk(KNOT_XIRC "Ooops: Not a creditcard\n");
637 return 0;
638 }
639 if (!(mediaid & 0x01)) {
640 printk(KNOT_XIRC "Not an Ethernet card\n");
641 return 0;
642 }
643 if (mediaid & 0x10) {
644 local->modem = 1;
645 switch(prodid & 15) {
646 case 1: local->card_type = XIR_CEM ; break;
647 case 2: local->card_type = XIR_CEM2 ; break;
648 case 3: local->card_type = XIR_CEM3 ; break;
649 case 4: local->card_type = XIR_CEM33 ; break;
650 case 5: local->card_type = XIR_CEM56M;
651 local->mohawk = 1;
652 break;
653 case 6:
654 case 7: /* 7 is the RealPort 10/56 */
655 local->card_type = XIR_CEM56 ;
656 local->mohawk = 1;
657 local->dingo = 1;
658 break;
659 }
660 } else {
661 switch(prodid & 15) {
662 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
663 break;
664 case 2: local->card_type = XIR_CE2; break;
665 case 3: local->card_type = XIR_CE3;
666 local->mohawk = 1;
667 break;
668 }
669 }
670 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
671 printk(KNOT_XIRC "Sorry, this is an old CE card\n");
672 return 0;
673 }
674 if (local->card_type == XIR_UNKNOWN)
675 printk(KNOT_XIRC "unknown card (mediaid=%02x prodid=%02x)\n",
676 mediaid, prodid);
677
678 return 1;
679}
680
681/****************
682 * There are some CE2 cards out which claim to be a CE card.
683 * This function looks for a "CE2" in the 3rd version field.
684 * Returns: true if this is a CE2
685 */
686static int
a9606fd3 687has_ce2_string(struct pcmcia_device * p_dev)
1da177e4 688{
a9606fd3
DB		 689 if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2"))
690 return 1;
691 return 0;
1da177e4
LT		 692}
693
b54bf94b
DB		 694static int
695xirc2ps_config_modem(struct pcmcia_device *p_dev,
696 cistpl_cftable_entry_t *cf,
8e2fc39d 697 cistpl_cftable_entry_t *dflt,
ad913c11 698 unsigned int vcc,
b54bf94b
DB		 699 void *priv_data)
700{
701 unsigned int ioaddr;
702
703 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8) {
704 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
b54bf94b
DB		 705 p_dev->io.BasePort2 = cf->io.win[0].base;
706 p_dev->io.BasePort1 = ioaddr;
707 if (!pcmcia_request_io(p_dev, &p_dev->io))
708 return 0;
709 }
710 }
711 return -ENODEV;
712}
713
714static int
715xirc2ps_config_check(struct pcmcia_device *p_dev,
716 cistpl_cftable_entry_t *cf,
8e2fc39d 717 cistpl_cftable_entry_t *dflt,
ad913c11 718 unsigned int vcc,
b54bf94b
DB		 719 void *priv_data)
720{
721 int *pass = priv_data;
722
723 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8) {
b54bf94b
DB		 724 p_dev->io.BasePort2 = cf->io.win[0].base;
725 p_dev->io.BasePort1 = p_dev->io.BasePort2
726 + (*pass ? (cf->index & 0x20 ? -24:8)
727 : (cf->index & 0x20 ? 8:-24));
728 if (!pcmcia_request_io(p_dev, &p_dev->io))
729 return 0;
730 }
731 return -ENODEV;
732
733}
734
dddfbd82
DB		 735
736static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev,
737 tuple_t *tuple,
738 void *priv)
739{
740 struct net_device *dev = priv;
741 int i;
742
743 if (tuple->TupleDataLen != 13)
744 return -EINVAL;
745 if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) ||
746 (tuple->TupleData[2] != 6))
747 return -EINVAL;
748 /* another try (James Lehmer's CE2 version 4.1)*/
749 for (i = 2; i < 6; i++)
750 dev->dev_addr[i] = tuple->TupleData[i+2];
751 return 0;
752};
753
754
1da177e4
LT		 755/****************
756 * xirc2ps_config() is scheduled to run after a CARD_INSERTION event
757 * is received, to configure the PCMCIA socket, and to make the
758 * ethernet device available to the system.
759 */
15b99ac1 760static int
fba395ee 761xirc2ps_config(struct pcmcia_device * link)
1da177e4 762{
1da177e4
LT		 763 struct net_device *dev = link->priv;
764 local_info_t *local = netdev_priv(dev);
b54bf94b 765 unsigned int ioaddr;
dddfbd82
DB		 766 int err;
767 u8 *buf;
768 size_t len;
1da177e4
LT		 769
770 local->dingo_ccr = NULL;
771
dd0fab5b 772 dev_dbg(&link->dev, "config\n");
1da177e4
LT		 773
774 /* Is this a valid card */
7d2e8d00 775 if (link->has_manf_id == 0) {
1da177e4
LT		 776 printk(KNOT_XIRC "manfid not found in CIS\n");
777 goto failure;
778 }
779
7d2e8d00 780 switch (link->manf_id) {
1da177e4
LT		 781 case MANFID_XIRCOM:
782 local->manf_str = "Xircom";
783 break;
784 case MANFID_ACCTON:
785 local->manf_str = "Accton";
786 break;
787 case MANFID_COMPAQ:
788 case MANFID_COMPAQ2:
789 local->manf_str = "Compaq";
790 break;
791 case MANFID_INTEL:
792 local->manf_str = "Intel";
793 break;
794 case MANFID_TOSHIBA:
795 local->manf_str = "Toshiba";
796 break;
797 default:
798 printk(KNOT_XIRC "Unknown Card Manufacturer ID: 0x%04x\n",
dddfbd82 799 (unsigned)link->manf_id);
1da177e4
LT		 800 goto failure;
801 }
dd0fab5b 802 dev_dbg(&link->dev, "found %s card\n", local->manf_str);
1da177e4 803
dddfbd82 804 if (!set_card_type(link)) {
1da177e4
LT		 805 printk(KNOT_XIRC "this card is not supported\n");
806 goto failure;
807 }
808
1da177e4 809 /* get the ethernet address from the CIS */
dddfbd82
DB		 810 err = pcmcia_get_mac_from_cis(link, dev);
811
812 /* not found: try to get the node-id from tuple 0x89 */
813 if (err) {
814 len = pcmcia_get_tuple(link, 0x89, &buf);
815 /* data layout looks like tuple 0x22 */
816 if (buf && len == 8) {
817 if (*buf == CISTPL_FUNCE_LAN_NODE_ID) {
818 int i;
819 for (i = 2; i < 6; i++)
820 dev->dev_addr[i] = buf[i+2];
821 } else
822 err = -1;
1da177e4 823 }
dddfbd82 824 kfree(buf);
1da177e4 825 }
dddfbd82
DB		 826
827 if (err)
828 err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev);
829
1da177e4
LT		 830 if (err) {
831 printk(KNOT_XIRC "node-id not found in CIS\n");
832 goto failure;
833 }
1da177e4 834
1da177e4
LT		 835 link->io.IOAddrLines =10;
836 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
1da177e4
LT		 837 if (local->modem) {
838 int pass;
839
840 if (do_sound) {
841 link->conf.Attributes |= CONF_ENABLE_SPKR;
842 link->conf.Status |= CCSR_AUDIO_ENA;
843 }
e15c1c1f 844 link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
1da177e4
LT		 845 link->io.NumPorts2 = 8;
846 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
847 if (local->dingo) {
848 /* Take the Modem IO port from the CIS and scan for a free
849 * Ethernet port */
850 link->io.NumPorts1 = 16; /* no Mako stuff anymore */
b54bf94b
DB		 851 if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL))
852 goto port_found;
1da177e4
LT		 853 } else {
854 link->io.NumPorts1 = 18;
855 /* We do 2 passes here: The first one uses the regular mapping and
856 * the second tries again, thereby considering that the 32 ports are
857 * mirrored every 32 bytes. Actually we use a mirrored port for
858 * the Mako if (on the first pass) the COR bit 5 is set.
859 */
b54bf94b
DB		 860 for (pass=0; pass < 2; pass++)
861 if (!pcmcia_loop_config(link, xirc2ps_config_check, &pass))
1da177e4 862 goto port_found;
1da177e4
LT		 863 /* if special option:
864 * try to configure as Ethernet only.
865 * .... */
866 }
867 printk(KNOT_XIRC "no ports available\n");
868 } else {
5e7bf8cc 869 link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
1da177e4
LT		 870 link->io.NumPorts1 = 16;
871 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
872 link->io.BasePort1 = ioaddr;
fba395ee 873 if (!(err=pcmcia_request_io(link, &link->io)))
1da177e4
LT		 874 goto port_found;
875 }
876 link->io.BasePort1 = 0; /* let CS decide */
dd0fab5b 877 if ((err=pcmcia_request_io(link, &link->io)))
1da177e4 878 goto config_error;
1da177e4
LT		 879 }
880 port_found:
881 if (err)
882 goto config_error;
883
884 /****************
885 * Now allocate an interrupt line. Note that this does not
886 * actually assign a handler to the interrupt.
887 */
dd0fab5b 888 if ((err=pcmcia_request_irq(link, &link->irq)))
1da177e4 889 goto config_error;
1da177e4
LT		 890
891 /****************
892 * This actually configures the PCMCIA socket -- setting up
893 * the I/O windows and the interrupt mapping.
894 */
dd0fab5b 895 if ((err=pcmcia_request_configuration(link, &link->conf)))
1da177e4 896 goto config_error;
1da177e4
LT		 897
898 if (local->dingo) {
899 conf_reg_t reg;
900 win_req_t req;
901 memreq_t mem;
902
903 /* Reset the modem's BAR to the correct value
904 * This is necessary because in the RequestConfiguration call,
905 * the base address of the ethernet port (BasePort1) is written
906 * to the BAR registers of the modem.
907 */
908 reg.Action = CS_WRITE;
909 reg.Offset = CISREG_IOBASE_0;
910 reg.Value = link->io.BasePort2 & 0xff;
dd0fab5b 911 if ((err = pcmcia_access_configuration_register(link, &reg)))
1da177e4 912 goto config_error;
1da177e4
LT		 913 reg.Action = CS_WRITE;
914 reg.Offset = CISREG_IOBASE_1;
915 reg.Value = (link->io.BasePort2 >> 8) & 0xff;
dd0fab5b 916 if ((err = pcmcia_access_configuration_register(link, &reg)))
1da177e4 917 goto config_error;
1da177e4
LT		 918
919 /* There is no config entry for the Ethernet part which
920 * is at 0x0800. So we allocate a window into the attribute
921 * memory and write direct to the CIS registers
922 */
923 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
924 req.Base = req.Size = 0;
925 req.AccessSpeed = 0;
6838b03f 926 if ((err = pcmcia_request_window(link, &req, &link->win)))
1da177e4 927 goto config_error;
dd0fab5b 928
1da177e4
LT		 929 local->dingo_ccr = ioremap(req.Base,0x1000) + 0x0800;
930 mem.CardOffset = 0x0;
931 mem.Page = 0;
868575d1 932 if ((err = pcmcia_map_mem_page(link, link->win, &mem)))
1da177e4 933 goto config_error;
1da177e4
LT		 934
935 /* Setup the CCRs; there are no infos in the CIS about the Ethernet
936 * part.
937 */
938 writeb(0x47, local->dingo_ccr + CISREG_COR);
939 ioaddr = link->io.BasePort1;
940 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
941 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
942
943 #if 0
944 {
945 u_char tmp;
946 printk(KERN_INFO "ECOR:");
947 for (i=0; i < 7; i++) {
948 tmp = readb(local->dingo_ccr + i*2);
949 printk(" %02x", tmp);
950 }
951 printk("\n");
952 printk(KERN_INFO "DCOR:");
953 for (i=0; i < 4; i++) {
954 tmp = readb(local->dingo_ccr + 0x20 + i*2);
955 printk(" %02x", tmp);
956 }
957 printk("\n");
958 printk(KERN_INFO "SCOR:");
959 for (i=0; i < 10; i++) {
960 tmp = readb(local->dingo_ccr + 0x40 + i*2);
961 printk(" %02x", tmp);
962 }
963 printk("\n");
964 }
965 #endif
966
967 writeb(0x01, local->dingo_ccr + 0x20);
968 writeb(0x0c, local->dingo_ccr + 0x22);
969 writeb(0x00, local->dingo_ccr + 0x24);
970 writeb(0x00, local->dingo_ccr + 0x26);
971 writeb(0x00, local->dingo_ccr + 0x28);
972 }
973
974 /* The if_port symbol can be set when the module is loaded */
975 local->probe_port=0;
976 if (!if_port) {
977 local->probe_port = dev->if_port = 1;
978 } else if ((if_port >= 1 && if_port <= 2) ||
979 (local->mohawk && if_port==4))
980 dev->if_port = if_port;
981 else
982 printk(KNOT_XIRC "invalid if_port requested\n");
983
984 /* we can now register the device with the net subsystem */
985 dev->irq = link->irq.AssignedIRQ;
986 dev->base_addr = link->io.BasePort1;
987
988 if (local->dingo)
989 do_reset(dev, 1); /* a kludge to make the cem56 work */
990
fd238232 991 link->dev_node = &local->node;
dd2e5a15 992 SET_NETDEV_DEV(dev, &link->dev);
1da177e4
LT		 993
994 if ((err=register_netdev(dev))) {
995 printk(KNOT_XIRC "register_netdev() failed\n");
fd238232 996 link->dev_node = NULL;
1da177e4
LT		 997 goto config_error;
998 }
999
1000 strcpy(local->node.dev_name, dev->name);
1001
1002 /* give some infos about the hardware */
e174961c 1003 printk(KERN_INFO "%s: %s: port %#3lx, irq %d, hwaddr %pM\n",
0795af57 1004 dev->name, local->manf_str,(u_long)dev->base_addr, (int)dev->irq,
e174961c 1005 dev->dev_addr);
1da177e4 1006
15b99ac1 1007 return 0;
1da177e4
LT		 1008
1009 config_error:
1da177e4 1010 xirc2ps_release(link);
15b99ac1 1011 return -ENODEV;
1da177e4 1012
1da177e4 1013 failure:
15b99ac1 1014 return -ENODEV;
1da177e4
LT		 1015} /* xirc2ps_config */
1016
1017/****************
1018 * After a card is removed, xirc2ps_release() will unregister the net
1019 * device, and release the PCMCIA configuration. If the device is
1020 * still open, this will be postponed until it is closed.
1021 */
1022static void
fba395ee 1023xirc2ps_release(struct pcmcia_device *link)
1da177e4 1024{
dd0fab5b 1025 dev_dbg(&link->dev, "release\n");
1da177e4 1026
5f2a71fc
DB		 1027 if (link->win) {
1028 struct net_device *dev = link->priv;
1029 local_info_t *local = netdev_priv(dev);
1030 if (local->dingo)
1031 iounmap(local->dingo_ccr - 0x0800);
1032 }
fba395ee 1033 pcmcia_disable_device(link);
1da177e4
LT		 1034} /* xirc2ps_release */
1035
1036/*====================================================================*/
1037
98e4c28b 1038
fba395ee 1039static int xirc2ps_suspend(struct pcmcia_device *link)
98e4c28b 1040{
98e4c28b
DB		 1041 struct net_device *dev = link->priv;
1042
e2d40963
DB		 1043 if (link->open) {
1044 netif_device_detach(dev);
1045 do_powerdown(dev);
98e4c28b
DB		 1046 }
1047
1048 return 0;
1049}
1050
fba395ee 1051static int xirc2ps_resume(struct pcmcia_device *link)
98e4c28b 1052{
98e4c28b
DB		 1053 struct net_device *dev = link->priv;
1054
e2d40963 1055 if (link->open) {
8661bb5b
DB		 1056 do_reset(dev,1);
1057 netif_device_attach(dev);
98e4c28b
DB		 1058 }
1059
1060 return 0;
1061}
1062
1da177e4
LT		 1063
1064/*====================================================================*/
1065
1066/****************
1067 * This is the Interrupt service route.
1068 */
1069static irqreturn_t
7d12e780 1070xirc2ps_interrupt(int irq, void *dev_id)
1da177e4
LT		 1071{
1072 struct net_device *dev = (struct net_device *)dev_id;
1073 local_info_t *lp = netdev_priv(dev);
906da809 1074 unsigned int ioaddr;
1da177e4
LT		 1075 u_char saved_page;
1076 unsigned bytes_rcvd;
1077 unsigned int_status, eth_status, rx_status, tx_status;
1078 unsigned rsr, pktlen;
1079 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
1080 * is this something to worry about?
1081 * -- on a laptop?
1082 */
1083
1084 if (!netif_device_present(dev))
1085 return IRQ_HANDLED;
1086
1087 ioaddr = dev->base_addr;
1088 if (lp->mohawk) { /* must disable the interrupt */
1089 PutByte(XIRCREG_CR, 0);
1090 }
1091
dd0fab5b 1092 pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
1da177e4
LT		 1093
1094 saved_page = GetByte(XIRCREG_PR);
1095 /* Read the ISR to see whats the cause for the interrupt.
1096 * This also clears the interrupt flags on CE2 cards
1097 */
1098 int_status = GetByte(XIRCREG_ISR);
1099 bytes_rcvd = 0;
1100 loop_entry:
1101 if (int_status == 0xff) { /* card may be ejected */
dd0fab5b 1102 pr_debug("%s: interrupt %d for dead card\n", dev->name, irq);
1da177e4
LT		 1103 goto leave;
1104 }
1105 eth_status = GetByte(XIRCREG_ESR);
1106
1107 SelectPage(0x40);
1108 rx_status = GetByte(XIRCREG40_RXST0);
1109 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
1110 tx_status = GetByte(XIRCREG40_TXST0);
1111 tx_status |= GetByte(XIRCREG40_TXST1) << 8;
1112 PutByte(XIRCREG40_TXST0, 0);
1113 PutByte(XIRCREG40_TXST1, 0);
1114
dd0fab5b 1115 pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
1da177e4
LT		 1116 dev->name, int_status, eth_status, rx_status, tx_status);
1117
1118 /***** receive section ******/
1119 SelectPage(0);
1120 while (eth_status & FullPktRcvd) {
1121 rsr = GetByte(XIRCREG0_RSR);
1122 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
1123 /* too many bytes received during this int, drop the rest of the
1124 * packets */
6394d7c9 1125 dev->stats.rx_dropped++;
dd0fab5b 1126 pr_debug("%s: RX drop, too much done\n", dev->name);
1da177e4
LT		 1127 } else if (rsr & PktRxOk) {
1128 struct sk_buff *skb;
1129
1130 pktlen = GetWord(XIRCREG0_RBC);
1131 bytes_rcvd += pktlen;
1132
dd0fab5b 1133 pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen);
1da177e4
LT		 1134
1135 skb = dev_alloc_skb(pktlen+3); /* 1 extra so we can use insw */
1136 if (!skb) {
1137 printk(KNOT_XIRC "low memory, packet dropped (size=%u)\n",
1138 pktlen);
6394d7c9 1139 dev->stats.rx_dropped++;
1da177e4
LT		 1140 } else { /* okay get the packet */
1141 skb_reserve(skb, 2);
1142 if (lp->silicon == 0 ) { /* work around a hardware bug */
1143 unsigned rhsa; /* receive start address */
1144
1145 SelectPage(5);
1146 rhsa = GetWord(XIRCREG5_RHSA0);
1147 SelectPage(0);
1148 rhsa += 3; /* skip control infos */
1149 if (rhsa >= 0x8000)
1150 rhsa = 0;
1151 if (rhsa + pktlen > 0x8000) {
1152 unsigned i;
1153 u_char *buf = skb_put(skb, pktlen);
1154 for (i=0; i < pktlen ; i++, rhsa++) {
1155 buf[i] = GetByte(XIRCREG_EDP);
1156 if (rhsa == 0x8000) {
1157 rhsa = 0;
1158 i--;
1159 }
1160 }
1161 } else {
1162 insw(ioaddr+XIRCREG_EDP,
1163 skb_put(skb, pktlen), (pktlen+1)>>1);
1164 }
1165 }
1166 #if 0
1167 else if (lp->mohawk) {
1168 /* To use this 32 bit access we should use
1169 * a manual optimized loop
1170 * Also the words are swapped, we can get more
1171 * performance by using 32 bit access and swapping
1172 * the words in a register. Will need this for cardbus
1173 *
1174 * Note: don't forget to change the ALLOC_SKB to .. +3
1175 */
1176 unsigned i;
1177 u_long *p = skb_put(skb, pktlen);
1178 register u_long a;
906da809 1179 unsigned int edpreg = ioaddr+XIRCREG_EDP-2;
1da177e4
LT		 1180 for (i=0; i < len ; i += 4, p++) {
1181 a = inl(edpreg);
1182 __asm__("rorl $16,%0\n\t"
1183 :"=q" (a)
1184 : "0" (a));
1185 *p = a;
1186 }
1187 }
1188 #endif
1189 else {
1190 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
1191 (pktlen+1)>>1);
1192 }
1193 skb->protocol = eth_type_trans(skb, dev);
1da177e4 1194 netif_rx(skb);
6394d7c9
SH		 1195 dev->stats.rx_packets++;
1196 dev->stats.rx_bytes += pktlen;
1da177e4 1197 if (!(rsr & PhyPkt))
6394d7c9 1198 dev->stats.multicast++;
1da177e4
LT		 1199 }
1200 } else { /* bad packet */
dd0fab5b 1201 pr_debug("rsr=%#02x\n", rsr);
1da177e4
LT		 1202 }
1203 if (rsr & PktTooLong) {
6394d7c9 1204 dev->stats.rx_frame_errors++;
dd0fab5b 1205 pr_debug("%s: Packet too long\n", dev->name);
1da177e4
LT		 1206 }
1207 if (rsr & CRCErr) {
6394d7c9 1208 dev->stats.rx_crc_errors++;
dd0fab5b 1209 pr_debug("%s: CRC error\n", dev->name);
1da177e4
LT		 1210 }
1211 if (rsr & AlignErr) {
6394d7c9 1212 dev->stats.rx_fifo_errors++; /* okay ? */
dd0fab5b 1213 pr_debug("%s: Alignment error\n", dev->name);
1da177e4
LT		 1214 }
1215
1216 /* clear the received/dropped/error packet */
1217 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
1218
1219 /* get the new ethernet status */
1220 eth_status = GetByte(XIRCREG_ESR);
1221 }
1222 if (rx_status & 0x10) { /* Receive overrun */
6394d7c9 1223 dev->stats.rx_over_errors++;
1da177e4 1224 PutByte(XIRCREG_CR, ClearRxOvrun);
dd0fab5b 1225 pr_debug("receive overrun cleared\n");
1da177e4
LT		 1226 }
1227
1228 /***** transmit section ******/
1229 if (int_status & PktTxed) {
1230 unsigned n, nn;
1231
1232 n = lp->last_ptr_value;
1233 nn = GetByte(XIRCREG0_PTR);
1234 lp->last_ptr_value = nn;
1235 if (nn < n) /* rollover */
6394d7c9 1236 dev->stats.tx_packets += 256 - n;
1da177e4 1237 else if (n == nn) { /* happens sometimes - don't know why */
dd0fab5b 1238 pr_debug("PTR not changed?\n");
1da177e4 1239 } else
6394d7c9 1240 dev->stats.tx_packets += lp->last_ptr_value - n;
1da177e4
LT		 1241 netif_wake_queue(dev);
1242 }
1243 if (tx_status & 0x0002) { /* Execessive collissions */
dd0fab5b 1244 pr_debug("tx restarted due to execssive collissions\n");
1da177e4
LT		 1245 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
1246 }
1247 if (tx_status & 0x0040)
6394d7c9 1248 dev->stats.tx_aborted_errors++;
1da177e4
LT		 1249
1250 /* recalculate our work chunk so that we limit the duration of this
1251 * ISR to about 1/10 of a second.
1252 * Calculate only if we received a reasonable amount of bytes.
1253 */
1254 if (bytes_rcvd > 1000) {
1255 u_long duration = jiffies - start_ticks;
1256
1257 if (duration >= HZ/10) { /* if more than about 1/10 second */
1258 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
1259 if (maxrx_bytes < 2000)
1260 maxrx_bytes = 2000;
1261 else if (maxrx_bytes > 22000)
1262 maxrx_bytes = 22000;
dd0fab5b 1263 pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n",
1da177e4
LT		 1264 maxrx_bytes, bytes_rcvd, duration);
1265 } else if (!duration && maxrx_bytes < 22000) {
1266 /* now much faster */
1267 maxrx_bytes += 2000;
1268 if (maxrx_bytes > 22000)
1269 maxrx_bytes = 22000;
dd0fab5b 1270 pr_debug("set maxrx=%u\n", maxrx_bytes);
1da177e4
LT		 1271 }
1272 }
1273
1274 leave:
1275 if (lockup_hack) {
1276 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
1277 goto loop_entry;
1278 }
1279 SelectPage(saved_page);
1280 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
1281 /* Instead of dropping packets during a receive, we could
1282 * force an interrupt with this command:
1283 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
1284 */
1285 return IRQ_HANDLED;
1286} /* xirc2ps_interrupt */
1287
1288/*====================================================================*/
1289
1290static void
c4028958 1291xirc2ps_tx_timeout_task(struct work_struct *work)
1da177e4 1292{
c4028958
DH		 1293 local_info_t *local =
1294 container_of(work, local_info_t, tx_timeout_task);
1295 struct net_device *dev = local->dev;
1da177e4
LT		 1296 /* reset the card */
1297 do_reset(dev,1);
1ae5dc34 1298 dev->trans_start = jiffies; /* prevent tx timeout */
1da177e4
LT		 1299 netif_wake_queue(dev);
1300}
1301
9a469abe 1302static void
ed4cb133 1303xirc_tx_timeout(struct net_device *dev)
9a469abe
JA		 1304{
1305 local_info_t *lp = netdev_priv(dev);
6394d7c9 1306 dev->stats.tx_errors++;
9a469abe
JA		 1307 printk(KERN_NOTICE "%s: transmit timed out\n", dev->name);
1308 schedule_work(&lp->tx_timeout_task);
1309}
1310
dbf02fae 1311static netdev_tx_t
1da177e4
LT		 1312do_start_xmit(struct sk_buff *skb, struct net_device *dev)
1313{
1314 local_info_t *lp = netdev_priv(dev);
906da809 1315 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1316 int okay;
1317 unsigned freespace;
da4f5ccf 1318 unsigned pktlen = skb->len;
1da177e4 1319
dd0fab5b 1320 pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n",
1da177e4
LT		 1321 skb, dev, pktlen);
1322
1323
1324 /* adjust the packet length to min. required
1325 * and hope that the buffer is large enough
1326 * to provide some random data.
1327 * fixme: For Mohawk we can change this by sending
1328 * a larger packetlen than we actually have; the chip will
1329 * pad this in his buffer with random bytes
1330 */
1331 if (pktlen < ETH_ZLEN)
1332 {
5b057c6b 1333 if (skb_padto(skb, ETH_ZLEN))
6ed10654 1334 return NETDEV_TX_OK;
1da177e4
LT		 1335 pktlen = ETH_ZLEN;
1336 }
1337
1338 netif_stop_queue(dev);
1339 SelectPage(0);
1340 PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
1341 freespace = GetWord(XIRCREG0_TSO);
1342 okay = freespace & 0x8000;
1343 freespace &= 0x7fff;
1344 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
1345 okay = pktlen +2 < freespace;
dd0fab5b 1346 pr_debug("%s: avail. tx space=%u%s\n",
1da177e4
LT		 1347 dev->name, freespace, okay ? " (okay)":" (not enough)");
1348 if (!okay) { /* not enough space */
5b548140 1349 return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */
1da177e4
LT		 1350 }
1351 /* send the packet */
1352 PutWord(XIRCREG_EDP, (u_short)pktlen);
1353 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
1354 if (pktlen & 1)
1355 PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
1356
1357 if (lp->mohawk)
1358 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
1359
1360 dev_kfree_skb (skb);
6394d7c9 1361 dev->stats.tx_bytes += pktlen;
1da177e4 1362 netif_start_queue(dev);
6ed10654 1363 return NETDEV_TX_OK;
1da177e4
LT		 1364}
1365
91fea585
JP		 1366struct set_address_info {
1367 int reg_nr;
1368 int page_nr;
1369 int mohawk;
1370 unsigned int ioaddr;
1371};
1372
1373static void set_address(struct set_address_info *sa_info, char *addr)
1374{
1375 unsigned int ioaddr = sa_info->ioaddr;
1376 int i;
1377
1378 for (i = 0; i < 6; i++) {
1379 if (sa_info->reg_nr > 15) {
1380 sa_info->reg_nr = 8;
1381 sa_info->page_nr++;
1382 SelectPage(sa_info->page_nr);
1383 }
1384 if (sa_info->mohawk)
1385 PutByte(sa_info->reg_nr++, addr[5 - i]);
1386 else
1387 PutByte(sa_info->reg_nr++, addr[i]);
1388 }
1389}
1390
1da177e4
LT		 1391/****************
1392 * Set all addresses: This first one is the individual address,
1393 * the next 9 addresses are taken from the multicast list and
1394 * the rest is filled with the individual address.
1395 */
91fea585 1396static void set_addresses(struct net_device *dev)
1da177e4 1397{
91fea585
JP		 1398 unsigned int ioaddr = dev->base_addr;
1399 local_info_t *lp = netdev_priv(dev);
22bedad3 1400 struct netdev_hw_addr *ha;
91fea585
JP		 1401 struct set_address_info sa_info;
1402 int i;
1da177e4 1403
91fea585
JP		 1404 /*
1405 * Setup the info structure so that by first set_address call it will do
1406 * SelectPage with the right page number. Hence these ones here.
1407 */
1408 sa_info.reg_nr = 15 + 1;
1409 sa_info.page_nr = 0x50 - 1;
1410 sa_info.mohawk = lp->mohawk;
1411 sa_info.ioaddr = ioaddr;
1412
1413 set_address(&sa_info, dev->dev_addr);
1414 i = 0;
22bedad3 1415 netdev_for_each_mc_addr(ha, dev) {
91fea585
JP		 1416 if (i++ == 9)
1417 break;
22bedad3 1418 set_address(&sa_info, ha->addr);
91fea585
JP		 1419 }
1420 while (i++ < 9)
1421 set_address(&sa_info, dev->dev_addr);
1422 SelectPage(0);
1da177e4
LT		 1423}
1424
1425/****************
1426 * Set or clear the multicast filter for this adaptor.
1427 * We can filter up to 9 addresses, if more are requested we set
1428 * multicast promiscuous mode.
1429 */
1430
1431static void
1432set_multicast_list(struct net_device *dev)
1433{
906da809 1434 unsigned int ioaddr = dev->base_addr;
43fc63dc 1435 unsigned value;
1da177e4
LT		 1436
1437 SelectPage(0x42);
43fc63dc
K		 1438 value = GetByte(XIRCREG42_SWC1) & 0xC0;
1439
1da177e4 1440 if (dev->flags & IFF_PROMISC) { /* snoop */
43fc63dc 1441 PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */
4cd24eaf 1442 } else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) {
43fc63dc 1443 PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */
4cd24eaf 1444 } else if (!netdev_mc_empty(dev)) {
1da177e4 1445 /* the chip can filter 9 addresses perfectly */
43fc63dc 1446 PutByte(XIRCREG42_SWC1, value | 0x01);
1da177e4
LT		 1447 SelectPage(0x40);
1448 PutByte(XIRCREG40_CMD0, Offline);
1449 set_addresses(dev);
1450 SelectPage(0x40);
1451 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1452 } else { /* standard usage */
43fc63dc 1453 PutByte(XIRCREG42_SWC1, value | 0x00);
1da177e4
LT		 1454 }
1455 SelectPage(0);
1456}
1457
1458static int
1459do_config(struct net_device *dev, struct ifmap *map)
1460{
1461 local_info_t *local = netdev_priv(dev);
1462
dd0fab5b 1463 pr_debug("do_config(%p)\n", dev);
1da177e4
LT		 1464 if (map->port != 255 && map->port != dev->if_port) {
1465 if (map->port > 4)
1466 return -EINVAL;
1467 if (!map->port) {
1468 local->probe_port = 1;
1469 dev->if_port = 1;
1470 } else {
1471 local->probe_port = 0;
1472 dev->if_port = map->port;
1473 }
1474 printk(KERN_INFO "%s: switching to %s port\n",
1475 dev->name, if_names[dev->if_port]);
1476 do_reset(dev,1); /* not the fine way :-) */
1477 }
1478 return 0;
1479}
1480
1481/****************
1482 * Open the driver
1483 */
1484static int
1485do_open(struct net_device *dev)
1486{
1487 local_info_t *lp = netdev_priv(dev);
fba395ee 1488 struct pcmcia_device *link = lp->p_dev;
1da177e4 1489
dd0fab5b 1490 dev_dbg(&link->dev, "do_open(%p)\n", dev);
1da177e4
LT		 1491
1492 /* Check that the PCMCIA card is still here. */
1493 /* Physical device present signature. */
9940ec36 1494 if (!pcmcia_dev_present(link))
1da177e4
LT		 1495 return -ENODEV;
1496
1497 /* okay */
1498 link->open++;
1499
1500 netif_start_queue(dev);
1501 do_reset(dev,1);
1502
1503 return 0;
1504}
1505
1506static void netdev_get_drvinfo(struct net_device *dev,
1507 struct ethtool_drvinfo *info)
1508{
1509 strcpy(info->driver, "xirc2ps_cs");
1510 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
1511}
1512
7282d491 1513static const struct ethtool_ops netdev_ethtool_ops = {
1da177e4
LT		 1514 .get_drvinfo = netdev_get_drvinfo,
1515};
1516
1517static int
1518do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1519{
1520 local_info_t *local = netdev_priv(dev);
906da809 1521 unsigned int ioaddr = dev->base_addr;
0fa0ee05 1522 struct mii_ioctl_data *data = if_mii(rq);
1da177e4 1523
dd0fab5b 1524 pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
1da177e4 1525 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
0fa0ee05 1526 data->phy_id, data->reg_num, data->val_in, data->val_out);
1da177e4
LT		 1527
1528 if (!local->mohawk)
1529 return -EOPNOTSUPP;
1530
1531 switch(cmd) {
1532 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
0fa0ee05 1533 data->phy_id = 0; /* we have only this address */
93b1fae4 1534 /* fall through */
1da177e4 1535 case SIOCGMIIREG: /* Read the specified MII register. */
0fa0ee05
BH		 1536 data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f,
1537 data->reg_num & 0x1f);
1da177e4
LT		 1538 break;
1539 case SIOCSMIIREG: /* Write the specified MII register */
0fa0ee05
BH		 1540 mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in,
1541 16);
1da177e4
LT		 1542 break;
1543 default:
1544 return -EOPNOTSUPP;
1545 }
1546 return 0;
1547}
1548
1549static void
1550hardreset(struct net_device *dev)
1551{
1552 local_info_t *local = netdev_priv(dev);
906da809 1553 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1554
1555 SelectPage(4);
1556 udelay(1);
1557 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1558 msleep(40); /* wait 40 msec */
1559 if (local->mohawk)
1560 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
1561 else
1562 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
1563 msleep(20); /* wait 20 msec */
1564}
1565
1566static void
1567do_reset(struct net_device *dev, int full)
1568{
1569 local_info_t *local = netdev_priv(dev);
906da809 1570 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1571 unsigned value;
1572
dd0fab5b 1573 pr_debug("%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
1da177e4
LT		 1574
1575 hardreset(dev);
1576 PutByte(XIRCREG_CR, SoftReset); /* set */
1577 msleep(20); /* wait 20 msec */
1578 PutByte(XIRCREG_CR, 0); /* clear */
1579 msleep(40); /* wait 40 msec */
1580 if (local->mohawk) {
1581 SelectPage(4);
1582 /* set pin GP1 and GP2 to output (0x0c)
1583 * set GP1 to low to power up the ML6692 (0x00)
1584 * set GP2 to high to power up the 10Mhz chip (0x02)
1585 */
1586 PutByte(XIRCREG4_GPR0, 0x0e);
1587 }
1588
1589 /* give the circuits some time to power up */
1590 msleep(500); /* about 500ms */
1591
1592 local->last_ptr_value = 0;
1593 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
1594 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
1595
1596 if (local->probe_port) {
1597 if (!local->mohawk) {
1598 SelectPage(4);
1599 PutByte(XIRCREG4_GPR0, 4);
1600 local->probe_port = 0;
1601 }
1602 } else if (dev->if_port == 2) { /* enable 10Base2 */
1603 SelectPage(0x42);
1604 PutByte(XIRCREG42_SWC1, 0xC0);
1605 } else { /* enable 10BaseT */
1606 SelectPage(0x42);
1607 PutByte(XIRCREG42_SWC1, 0x80);
1608 }
1609 msleep(40); /* wait 40 msec to let it complete */
1610
dd0fab5b
DB		 1611 #if 0
1612 {
1da177e4
LT		 1613 SelectPage(0);
1614 value = GetByte(XIRCREG_ESR); /* read the ESR */
1615 printk(KERN_DEBUG "%s: ESR is: %#02x\n", dev->name, value);
1616 }
1617 #endif
1618
1619 /* setup the ECR */
1620 SelectPage(1);
1621 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
1622 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
1623 value = GetByte(XIRCREG1_ECR);
1624 #if 0
1625 if (local->mohawk)
1626 value |= DisableLinkPulse;
1627 PutByte(XIRCREG1_ECR, value);
1628 #endif
dd0fab5b 1629 pr_debug("%s: ECR is: %#02x\n", dev->name, value);
1da177e4
LT		 1630
1631 SelectPage(0x42);
1632 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
1633
1634 if (local->silicon != 1) {
1635 /* set the local memory dividing line.
1636 * The comments in the sample code say that this is only
1637 * settable with the scipper version 2 which is revision 0.
1638 * Always for CE3 cards
1639 */
1640 SelectPage(2);
1641 PutWord(XIRCREG2_RBS, 0x2000);
1642 }
1643
1644 if (full)
1645 set_addresses(dev);
1646
1647 /* Hardware workaround:
1648 * The receive byte pointer after reset is off by 1 so we need
1649 * to move the offset pointer back to 0.
1650 */
1651 SelectPage(0);
1652 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
1653
1654 /* setup MAC IMRs and clear status registers */
1655 SelectPage(0x40); /* Bit 7 ... bit 0 */
1656 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
1657 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1658 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
1659 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
1660 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1661 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
1662
1663 if (full && local->mohawk && init_mii(dev)) {
1664 if (dev->if_port == 4 || local->dingo || local->new_mii) {
1665 printk(KERN_INFO "%s: MII selected\n", dev->name);
1666 SelectPage(2);
1667 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
1668 msleep(20);
1669 } else {
1670 printk(KERN_INFO "%s: MII detected; using 10mbs\n",
1671 dev->name);
1672 SelectPage(0x42);
1673 if (dev->if_port == 2) /* enable 10Base2 */
1674 PutByte(XIRCREG42_SWC1, 0xC0);
1675 else /* enable 10BaseT */
1676 PutByte(XIRCREG42_SWC1, 0x80);
1677 msleep(40); /* wait 40 msec to let it complete */
1678 }
1679 if (full_duplex)
1680 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
1681 } else { /* No MII */
1682 SelectPage(0);
1683 value = GetByte(XIRCREG_ESR); /* read the ESR */
1684 dev->if_port = (value & MediaSelect) ? 1 : 2;
1685 }
1686
1687 /* configure the LEDs */
1688 SelectPage(2);
1689 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
1690 PutByte(XIRCREG2_LED, 0x3b);
1691 else /* Coax: Not-Collision and Activity */
1692 PutByte(XIRCREG2_LED, 0x3a);
1693
1694 if (local->dingo)
1695 PutByte(0x0b, 0x04); /* 100 Mbit LED */
1696
1697 /* enable receiver and put the mac online */
1698 if (full) {
43fc63dc 1699 set_multicast_list(dev);
1da177e4
LT		 1700 SelectPage(0x40);
1701 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1702 }
1703
1704 /* setup Ethernet IMR and enable interrupts */
1705 SelectPage(1);
1706 PutByte(XIRCREG1_IMR0, 0xff);
1707 udelay(1);
1708 SelectPage(0);
1709 PutByte(XIRCREG_CR, EnableIntr);
1710 if (local->modem && !local->dingo) { /* do some magic */
1711 if (!(GetByte(0x10) & 0x01))
1712 PutByte(0x10, 0x11); /* unmask master-int bit */
1713 }
1714
1715 if (full)
1716 printk(KERN_INFO "%s: media %s, silicon revision %d\n",
1717 dev->name, if_names[dev->if_port], local->silicon);
1718 /* We should switch back to page 0 to avoid a bug in revision 0
1719 * where regs with offset below 8 can't be read after an access
1720 * to the MAC registers */
1721 SelectPage(0);
1722}
1723
1724/****************
1725 * Initialize the Media-Independent-Interface
1726 * Returns: True if we have a good MII
1727 */
1728static int
1729init_mii(struct net_device *dev)
1730{
1731 local_info_t *local = netdev_priv(dev);
906da809 1732 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1733 unsigned control, status, linkpartner;
1734 int i;
1735
1736 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
1737 dev->if_port = if_port;
1738 local->probe_port = 0;
1739 return 1;
1740 }
1741
1742 status = mii_rd(ioaddr, 0, 1);
1743 if ((status & 0xff00) != 0x7800)
1744 return 0; /* No MII */
1745
1746 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
1747
1748 if (local->probe_port)
1749 control = 0x1000; /* auto neg */
1750 else if (dev->if_port == 4)
1751 control = 0x2000; /* no auto neg, 100mbs mode */
1752 else
1753 control = 0x0000; /* no auto neg, 10mbs mode */
1754 mii_wr(ioaddr, 0, 0, control, 16);
1755 udelay(100);
1756 control = mii_rd(ioaddr, 0, 0);
1757
1758 if (control & 0x0400) {
1759 printk(KERN_NOTICE "%s can't take PHY out of isolation mode\n",
1760 dev->name);
1761 local->probe_port = 0;
1762 return 0;
1763 }
1764
1765 if (local->probe_port) {
1766 /* according to the DP83840A specs the auto negotiation process
1767 * may take up to 3.5 sec, so we use this also for our ML6692
1768 * Fixme: Better to use a timer here!
1769 */
1770 for (i=0; i < 35; i++) {
1771 msleep(100); /* wait 100 msec */
1772 status = mii_rd(ioaddr, 0, 1);
1773 if ((status & 0x0020) && (status & 0x0004))
1774 break;
1775 }
1776
1777 if (!(status & 0x0020)) {
1778 printk(KERN_INFO "%s: autonegotiation failed;"
1779 " using 10mbs\n", dev->name);
1780 if (!local->new_mii) {
1781 control = 0x0000;
1782 mii_wr(ioaddr, 0, 0, control, 16);
1783 udelay(100);
1784 SelectPage(0);
1785 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
1786 }
1787 } else {
1788 linkpartner = mii_rd(ioaddr, 0, 5);
1789 printk(KERN_INFO "%s: MII link partner: %04x\n",
1790 dev->name, linkpartner);
1791 if (linkpartner & 0x0080) {
1792 dev->if_port = 4;
1793 } else
1794 dev->if_port = 1;
1795 }
1796 }
1797
1798 return 1;
1799}
1800
1801static void
1802do_powerdown(struct net_device *dev)
1803{
1804
906da809 1805 unsigned int ioaddr = dev->base_addr;
1da177e4 1806
dd0fab5b 1807 pr_debug("do_powerdown(%p)\n", dev);
1da177e4
LT		 1808
1809 SelectPage(4);
1810 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1811 SelectPage(0);
1812}
1813
1814static int
1815do_stop(struct net_device *dev)
1816{
906da809 1817 unsigned int ioaddr = dev->base_addr;
1da177e4 1818 local_info_t *lp = netdev_priv(dev);
fba395ee 1819 struct pcmcia_device *link = lp->p_dev;
1da177e4 1820
dd0fab5b 1821 dev_dbg(&link->dev, "do_stop(%p)\n", dev);
1da177e4
LT		 1822
1823 if (!link)
1824 return -ENODEV;
1825
1826 netif_stop_queue(dev);
1827
1828 SelectPage(0);
1829 PutByte(XIRCREG_CR, 0); /* disable interrupts */
1830 SelectPage(0x01);
1831 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
1832 SelectPage(4);
1833 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1834 SelectPage(0);
1835
1836 link->open--;
1837 return 0;
1838}
1839
ff07bb19
DB		 1840static struct pcmcia_device_id xirc2ps_ids[] = {
1841 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a),
1842 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a),
1843 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),
1844 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),
1845 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),
1846 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),
1847 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),
d277ad0e 1848 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),
ff07bb19
DB		 1849 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a),
1850 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2),
1851 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37),
1852 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073),
1853 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3),
1854 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609),
1855 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46),
1856 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2),
1857 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769),
1858 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db),
1859 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf),
1860 /* also matches CFE-10 cards! */
1861 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */
1862 PCMCIA_DEVICE_NULL,
1863};
1864MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids);
1865
1866
1da177e4
LT		 1867static struct pcmcia_driver xirc2ps_cs_driver = {
1868 .owner = THIS_MODULE,
1869 .drv = {
1870 .name = "xirc2ps_cs",
1871 },
15b99ac1 1872 .probe = xirc2ps_probe,
cc3b4866 1873 .remove = xirc2ps_detach,
ff07bb19 1874 .id_table = xirc2ps_ids,
98e4c28b
DB		 1875 .suspend = xirc2ps_suspend,
1876 .resume = xirc2ps_resume,
1da177e4
LT		 1877};
1878
1879static int __init
1880init_xirc2ps_cs(void)
1881{
1882 return pcmcia_register_driver(&xirc2ps_cs_driver);
1883}
1884
1885static void __exit
1886exit_xirc2ps_cs(void)
1887{
1888 pcmcia_unregister_driver(&xirc2ps_cs_driver);
1da177e4
LT		 1889}
1890
1891module_init(init_xirc2ps_cs);
1892module_exit(exit_xirc2ps_cs);
1893
1894#ifndef MODULE
1895static int __init setup_xirc2ps_cs(char *str)
1896{
1897 /* if_port, full_duplex, do_sound, lockup_hack
1898 */
1899 int ints[10] = { -1 };
1900
1901 str = get_options(str, 9, ints);
1902
1903#define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
1904 MAYBE_SET(if_port, 3);
1905 MAYBE_SET(full_duplex, 4);
1906 MAYBE_SET(do_sound, 5);
1907 MAYBE_SET(lockup_hack, 6);
1908#undef MAYBE_SET
1909
9b41046c 1910 return 1;
1da177e4
LT		 1911}
1912
1913__setup("xirc2ps_cs=", setup_xirc2ps_cs);
1914#endif
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