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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/pcmcia/xirc2ps_cs.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/net/pcmcia/xirc2ps_cs.c')
-rw-r--r--drivers/net/pcmcia/xirc2ps_cs.c2031
1 files changed, 2031 insertions, 0 deletions
diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c
new file mode 100644
index 000000000000..58177d67ea12
--- /dev/null
+++ b/drivers/net/pcmcia/xirc2ps_cs.c
@@ -0,0 +1,2031 @@
1/* [xirc2ps_cs.c wk 03.11.99] (1.40 1999/11/18 00:06:03)
2 * Xircom CreditCard Ethernet Adapter IIps driver
3 * Xircom Realport 10/100 (RE-100) driver
4 *
5 * This driver supports various Xircom CreditCard Ethernet adapters
6 * including the CE2, CE IIps, RE-10, CEM28, CEM33, CE33, CEM56,
7 * CE3-100, CE3B, RE-100, REM10BT, and REM56G-100.
8 *
9 * 2000-09-24 <psheer@icon.co.za> The Xircom CE3B-100 may not
10 * autodetect the media properly. In this case use the
11 * if_port=1 (for 10BaseT) or if_port=4 (for 100BaseT) options
12 * to force the media type.
13 *
14 * Written originally by Werner Koch based on David Hinds' skeleton of the
15 * PCMCIA driver.
16 *
17 * Copyright (c) 1997,1998 Werner Koch (dd9jn)
18 *
19 * This driver is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 2 of the License, or
22 * (at your option) any later version.
23 *
24 * It is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
32 *
33 *
34 * ALTERNATIVELY, this driver may be distributed under the terms of
35 * the following license, in which case the provisions of this license
36 * are required INSTEAD OF the GNU General Public License. (This clause
37 * is necessary due to a potential bad interaction between the GPL and
38 * the restrictions contained in a BSD-style copyright.)
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, and the entire permission notice in its entirety,
45 * including the disclaimer of warranties.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution.
49 * 3. The name of the author may not be used to endorse or promote
50 * products derived from this software without specific prior
51 * written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
54 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
55 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
56 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
57 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
58 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
59 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
61 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
62 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
63 * OF THE POSSIBILITY OF SUCH DAMAGE.
64 */
65
66#include <linux/module.h>
67#include <linux/kernel.h>
68#include <linux/init.h>
69#include <linux/ptrace.h>
70#include <linux/slab.h>
71#include <linux/string.h>
72#include <linux/timer.h>
73#include <linux/interrupt.h>
74#include <linux/in.h>
75#include <linux/delay.h>
76#include <linux/ethtool.h>
77#include <linux/netdevice.h>
78#include <linux/etherdevice.h>
79#include <linux/skbuff.h>
80#include <linux/if_arp.h>
81#include <linux/ioport.h>
82#include <linux/bitops.h>
83
84#include <pcmcia/version.h>
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
212static char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" };
213
214/****************
215 * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
216 * you do not define PCMCIA_DEBUG at all, all the debug code will be
217 * left out. If you compile with PCMCIA_DEBUG=0, the debug code will
218 * be present but disabled -- but it can then be enabled for specific
219 * modules at load time with a 'pc_debug=#' option to insmod.
220 */
221#ifdef PCMCIA_DEBUG
222static int pc_debug = PCMCIA_DEBUG;
223module_param(pc_debug, int, 0);
224#define DEBUG(n, args...) if (pc_debug>(n)) printk(KDBG_XIRC args)
225#else
226#define DEBUG(n, args...)
227#endif
228
229#define KDBG_XIRC KERN_DEBUG "xirc2ps_cs: "
230#define KERR_XIRC KERN_ERR "xirc2ps_cs: "
231#define KWRN_XIRC KERN_WARNING "xirc2ps_cs: "
232#define KNOT_XIRC KERN_NOTICE "xirc2ps_cs: "
233#define KINF_XIRC KERN_INFO "xirc2ps_cs: "
234
235/* card types */
236#define XIR_UNKNOWN 0 /* unknown: not supported */
237#define XIR_CE 1 /* (prodid 1) different hardware: not supported */
238#define XIR_CE2 2 /* (prodid 2) */
239#define XIR_CE3 3 /* (prodid 3) */
240#define XIR_CEM 4 /* (prodid 1) different hardware: not supported */
241#define XIR_CEM2 5 /* (prodid 2) */
242#define XIR_CEM3 6 /* (prodid 3) */
243#define XIR_CEM33 7 /* (prodid 4) */
244#define XIR_CEM56M 8 /* (prodid 5) */
245#define XIR_CEM56 9 /* (prodid 6) */
246#define XIR_CM28 10 /* (prodid 3) modem only: not supported here */
247#define XIR_CM33 11 /* (prodid 4) modem only: not supported here */
248#define XIR_CM56 12 /* (prodid 5) modem only: not supported here */
249#define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */
250#define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */
251/*====================================================================*/
252
253/* Module parameters */
254
255MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver");
256MODULE_LICENSE("Dual MPL/GPL");
257
258#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
259
260INT_MODULE_PARM(if_port, 0);
261INT_MODULE_PARM(full_duplex, 0);
262INT_MODULE_PARM(do_sound, 1);
263INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */
264
265/*====================================================================*/
266
267/* We do not process more than these number of bytes during one
268 * interrupt. (Of course we receive complete packets, so this is not
269 * an exact value).
270 * Something between 2000..22000; first value gives best interrupt latency,
271 * the second enables the usage of the complete on-chip buffer. We use the
272 * high value as the initial value.
273 */
274static unsigned maxrx_bytes = 22000;
275
276/* MII management prototypes */
277static void mii_idle(kio_addr_t ioaddr);
278static void mii_putbit(kio_addr_t ioaddr, unsigned data);
279static int mii_getbit(kio_addr_t ioaddr);
280static void mii_wbits(kio_addr_t ioaddr, unsigned data, int len);
281static unsigned mii_rd(kio_addr_t ioaddr, u_char phyaddr, u_char phyreg);
282static void mii_wr(kio_addr_t ioaddr, u_char phyaddr, u_char phyreg,
283 unsigned data, int len);
284
285/*
286 * The event() function is this driver's Card Services event handler.
287 * It will be called by Card Services when an appropriate card status
288 * event is received. The config() and release() entry points are
289 * used to configure or release a socket, in response to card insertion
290 * and ejection events. They are invoked from the event handler.
291 */
292
293static int has_ce2_string(dev_link_t * link);
294static void xirc2ps_config(dev_link_t * link);
295static void xirc2ps_release(dev_link_t * link);
296static int xirc2ps_event(event_t event, int priority,
297 event_callback_args_t * args);
298
299/****************
300 * The attach() and detach() entry points are used to create and destroy
301 * "instances" of the driver, where each instance represents everything
302 * needed to manage one actual PCMCIA card.
303 */
304
305static dev_link_t *xirc2ps_attach(void);
306static void xirc2ps_detach(dev_link_t *);
307
308/****************
309 * You'll also need to prototype all the functions that will actually
310 * be used to talk to your device. See 'pcmem_cs' for a good example
311 * of a fully self-sufficient driver; the other drivers rely more or
312 * less on other parts of the kernel.
313 */
314
315static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id, struct pt_regs *regs);
316
317/*
318 * The dev_info variable is the "key" that is used to match up this
319 * device driver with appropriate cards, through the card configuration
320 * database.
321 */
322
323static dev_info_t dev_info = "xirc2ps_cs";
324
325/****************
326 * A linked list of "instances" of the device. Each actual
327 * PCMCIA card corresponds to one device instance, and is described
328 * by one dev_link_t structure (defined in ds.h).
329 *
330 * You may not want to use a linked list for this -- for example, the
331 * memory card driver uses an array of dev_link_t pointers, where minor
332 * device numbers are used to derive the corresponding array index.
333 */
334
335static dev_link_t *dev_list;
336
337/****************
338 * A dev_link_t structure has fields for most things that are needed
339 * to keep track of a socket, but there will usually be some device
340 * specific information that also needs to be kept track of. The
341 * 'priv' pointer in a dev_link_t structure can be used to point to
342 * a device-specific private data structure, like this.
343 *
344 * A driver needs to provide a dev_node_t structure for each device
345 * on a card. In some cases, there is only one device per card (for
346 * example, ethernet cards, modems). In other cases, there may be
347 * many actual or logical devices (SCSI adapters, memory cards with
348 * multiple partitions). The dev_node_t structures need to be kept
349 * in a linked list starting at the 'dev' field of a dev_link_t
350 * structure. We allocate them in the card's private data structure,
351 * because they generally can't be allocated dynamically.
352 */
353
354typedef struct local_info_t {
355 dev_link_t link;
356 dev_node_t node;
357 struct net_device_stats stats;
358 int card_type;
359 int probe_port;
360 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */
361 int mohawk; /* a CE3 type card */
362 int dingo; /* a CEM56 type card */
363 int new_mii; /* has full 10baseT/100baseT MII */
364 int modem; /* is a multi function card (i.e with a modem) */
365 void __iomem *dingo_ccr; /* only used for CEM56 cards */
366 unsigned last_ptr_value; /* last packets transmitted value */
367 const char *manf_str;
368} local_info_t;
369
370/****************
371 * Some more prototypes
372 */
373static int do_start_xmit(struct sk_buff *skb, struct net_device *dev);
374static void do_tx_timeout(struct net_device *dev);
375static struct net_device_stats *do_get_stats(struct net_device *dev);
376static void set_addresses(struct net_device *dev);
377static void set_multicast_list(struct net_device *dev);
378static int set_card_type(dev_link_t *link, const void *s);
379static int do_config(struct net_device *dev, struct ifmap *map);
380static int do_open(struct net_device *dev);
381static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
382static struct ethtool_ops netdev_ethtool_ops;
383static void hardreset(struct net_device *dev);
384static void do_reset(struct net_device *dev, int full);
385static int init_mii(struct net_device *dev);
386static void do_powerdown(struct net_device *dev);
387static int do_stop(struct net_device *dev);
388
389/*=============== Helper functions =========================*/
390static int
391first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
392{
393 int err;
394
395 if ((err = pcmcia_get_first_tuple(handle, tuple)) == 0 &&
396 (err = pcmcia_get_tuple_data(handle, tuple)) == 0)
397 err = pcmcia_parse_tuple(handle, tuple, parse);
398 return err;
399}
400
401static int
402next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
403{
404 int err;
405
406 if ((err = pcmcia_get_next_tuple(handle, tuple)) == 0 &&
407 (err = pcmcia_get_tuple_data(handle, tuple)) == 0)
408 err = pcmcia_parse_tuple(handle, tuple, parse);
409 return err;
410}
411
412#define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR)
413#define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))
414#define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))
415#define PutByte(reg,value) outb((value), ioaddr+(reg))
416#define PutWord(reg,value) outw((value), ioaddr+(reg))
417
418/*====== Functions used for debugging =================================*/
419#if defined(PCMCIA_DEBUG) && 0 /* reading regs may change system status */
420static void
421PrintRegisters(struct net_device *dev)
422{
423 kio_addr_t ioaddr = dev->base_addr;
424
425 if (pc_debug > 1) {
426 int i, page;
427
428 printk(KDBG_XIRC "Register common: ");
429 for (i = 0; i < 8; i++)
430 printk(" %2.2x", GetByte(i));
431 printk("\n");
432 for (page = 0; page <= 8; page++) {
433 printk(KDBG_XIRC "Register page %2x: ", page);
434 SelectPage(page);
435 for (i = 8; i < 16; i++)
436 printk(" %2.2x", GetByte(i));
437 printk("\n");
438 }
439 for (page=0x40 ; page <= 0x5f; page++) {
440 if (page == 0x43 || (page >= 0x46 && page <= 0x4f)
441 || (page >= 0x51 && page <=0x5e))
442 continue;
443 printk(KDBG_XIRC "Register page %2x: ", page);
444 SelectPage(page);
445 for (i = 8; i < 16; i++)
446 printk(" %2.2x", GetByte(i));
447 printk("\n");
448 }
449 }
450}
451#endif /* PCMCIA_DEBUG */
452
453/*============== MII Management functions ===============*/
454
455/****************
456 * Turn around for read
457 */
458static void
459mii_idle(kio_addr_t ioaddr)
460{
461 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */
462 udelay(1);
463 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */
464 udelay(1);
465}
466
467/****************
468 * Write a bit to MDI/O
469 */
470static void
471mii_putbit(kio_addr_t ioaddr, unsigned data)
472{
473 #if 1
474 if (data) {
475 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */
476 udelay(1);
477 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */
478 udelay(1);
479 } else {
480 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */
481 udelay(1);
482 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */
483 udelay(1);
484 }
485 #else
486 if (data) {
487 PutWord(XIRCREG2_GPR2-1, 0x0e0e);
488 udelay(1);
489 PutWord(XIRCREG2_GPR2-1, 0x0f0f);
490 udelay(1);
491 } else {
492 PutWord(XIRCREG2_GPR2-1, 0x0c0c);
493 udelay(1);
494 PutWord(XIRCREG2_GPR2-1, 0x0d0d);
495 udelay(1);
496 }
497 #endif
498}
499
500/****************
501 * Get a bit from MDI/O
502 */
503static int
504mii_getbit(kio_addr_t ioaddr)
505{
506 unsigned d;
507
508 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */
509 udelay(1);
510 d = GetByte(XIRCREG2_GPR2); /* read MDIO */
511 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */
512 udelay(1);
513 return d & 0x20; /* read MDIO */
514}
515
516static void
517mii_wbits(kio_addr_t ioaddr, unsigned data, int len)
518{
519 unsigned m = 1 << (len-1);
520 for (; m; m >>= 1)
521 mii_putbit(ioaddr, data & m);
522}
523
524static unsigned
525mii_rd(kio_addr_t ioaddr, u_char phyaddr, u_char phyreg)
526{
527 int i;
528 unsigned data=0, m;
529
530 SelectPage(2);
531 for (i=0; i < 32; i++) /* 32 bit preamble */
532 mii_putbit(ioaddr, 1);
533 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */
534 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
535 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */
536 mii_idle(ioaddr); /* turn around */
537 mii_getbit(ioaddr);
538
539 for (m = 1<<15; m; m >>= 1)
540 if (mii_getbit(ioaddr))
541 data |= m;
542 mii_idle(ioaddr);
543 return data;
544}
545
546static void
547mii_wr(kio_addr_t ioaddr, u_char phyaddr, u_char phyreg, unsigned data, int len)
548{
549 int i;
550
551 SelectPage(2);
552 for (i=0; i < 32; i++) /* 32 bit preamble */
553 mii_putbit(ioaddr, 1);
554 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */
555 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
556 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */
557 mii_putbit(ioaddr, 1); /* turn around */
558 mii_putbit(ioaddr, 0);
559 mii_wbits(ioaddr, data, len); /* And write the data */
560 mii_idle(ioaddr);
561}
562
563/*============= Main bulk of functions =========================*/
564
565/****************
566 * xirc2ps_attach() creates an "instance" of the driver, allocating
567 * local data structures for one device. The device is registered
568 * with Card Services.
569 *
570 * The dev_link structure is initialized, but we don't actually
571 * configure the card at this point -- we wait until we receive a
572 * card insertion event.
573 */
574
575static dev_link_t *
576xirc2ps_attach(void)
577{
578 client_reg_t client_reg;
579 dev_link_t *link;
580 struct net_device *dev;
581 local_info_t *local;
582 int err;
583
584 DEBUG(0, "attach()\n");
585
586 /* Allocate the device structure */
587 dev = alloc_etherdev(sizeof(local_info_t));
588 if (!dev)
589 return NULL;
590 local = netdev_priv(dev);
591 link = &local->link;
592 link->priv = dev;
593
594 /* General socket configuration */
595 link->conf.Attributes = CONF_ENABLE_IRQ;
596 link->conf.Vcc = 50;
597 link->conf.IntType = INT_MEMORY_AND_IO;
598 link->conf.ConfigIndex = 1;
599 link->conf.Present = PRESENT_OPTION;
600 link->irq.Handler = xirc2ps_interrupt;
601 link->irq.Instance = dev;
602
603 /* Fill in card specific entries */
604 SET_MODULE_OWNER(dev);
605 dev->hard_start_xmit = &do_start_xmit;
606 dev->set_config = &do_config;
607 dev->get_stats = &do_get_stats;
608 dev->do_ioctl = &do_ioctl;
609 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
610 dev->set_multicast_list = &set_multicast_list;
611 dev->open = &do_open;
612 dev->stop = &do_stop;
613#ifdef HAVE_TX_TIMEOUT
614 dev->tx_timeout = do_tx_timeout;
615 dev->watchdog_timeo = TX_TIMEOUT;
616#endif
617
618 /* Register with Card Services */
619 link->next = dev_list;
620 dev_list = link;
621 client_reg.dev_info = &dev_info;
622 client_reg.EventMask =
623 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
624 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
625 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
626 client_reg.event_handler = &xirc2ps_event;
627 client_reg.Version = 0x0210;
628 client_reg.event_callback_args.client_data = link;
629 if ((err = pcmcia_register_client(&link->handle, &client_reg))) {
630 cs_error(link->handle, RegisterClient, err);
631 xirc2ps_detach(link);
632 return NULL;
633 }
634
635 return link;
636} /* xirc2ps_attach */
637
638/****************
639 * This deletes a driver "instance". The device is de-registered
640 * with Card Services. If it has been released, all local data
641 * structures are freed. Otherwise, the structures will be freed
642 * when the device is released.
643 */
644
645static void
646xirc2ps_detach(dev_link_t * link)
647{
648 struct net_device *dev = link->priv;
649 dev_link_t **linkp;
650
651 DEBUG(0, "detach(0x%p)\n", link);
652
653 /* Locate device structure */
654 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
655 if (*linkp == link)
656 break;
657 if (!*linkp) {
658 DEBUG(0, "detach(0x%p): dev_link lost\n", link);
659 return;
660 }
661
662 if (link->dev)
663 unregister_netdev(dev);
664
665 /*
666 * If the device is currently configured and active, we won't
667 * actually delete it yet. Instead, it is marked so that when
668 * the release() function is called, that will trigger a proper
669 * detach().
670 */
671 if (link->state & DEV_CONFIG)
672 xirc2ps_release(link);
673
674 /* Break the link with Card Services */
675 if (link->handle)
676 pcmcia_deregister_client(link->handle);
677
678 /* Unlink device structure, free it */
679 *linkp = link->next;
680 free_netdev(dev);
681} /* xirc2ps_detach */
682
683/****************
684 * Detect the type of the card. s is the buffer with the data of tuple 0x20
685 * Returns: 0 := not supported
686 * mediaid=11 and prodid=47
687 * Media-Id bits:
688 * Ethernet 0x01
689 * Tokenring 0x02
690 * Arcnet 0x04
691 * Wireless 0x08
692 * Modem 0x10
693 * GSM only 0x20
694 * Prod-Id bits:
695 * Pocket 0x10
696 * External 0x20
697 * Creditcard 0x40
698 * Cardbus 0x80
699 *
700 */
701static int
702set_card_type(dev_link_t *link, const void *s)
703{
704 struct net_device *dev = link->priv;
705 local_info_t *local = netdev_priv(dev);
706 #ifdef PCMCIA_DEBUG
707 unsigned cisrev = ((const unsigned char *)s)[2];
708 #endif
709 unsigned mediaid= ((const unsigned char *)s)[3];
710 unsigned prodid = ((const unsigned char *)s)[4];
711
712 DEBUG(0, "cisrev=%02x mediaid=%02x prodid=%02x\n",
713 cisrev, mediaid, prodid);
714
715 local->mohawk = 0;
716 local->dingo = 0;
717 local->modem = 0;
718 local->card_type = XIR_UNKNOWN;
719 if (!(prodid & 0x40)) {
720 printk(KNOT_XIRC "Ooops: Not a creditcard\n");
721 return 0;
722 }
723 if (!(mediaid & 0x01)) {
724 printk(KNOT_XIRC "Not an Ethernet card\n");
725 return 0;
726 }
727 if (mediaid & 0x10) {
728 local->modem = 1;
729 switch(prodid & 15) {
730 case 1: local->card_type = XIR_CEM ; break;
731 case 2: local->card_type = XIR_CEM2 ; break;
732 case 3: local->card_type = XIR_CEM3 ; break;
733 case 4: local->card_type = XIR_CEM33 ; break;
734 case 5: local->card_type = XIR_CEM56M;
735 local->mohawk = 1;
736 break;
737 case 6:
738 case 7: /* 7 is the RealPort 10/56 */
739 local->card_type = XIR_CEM56 ;
740 local->mohawk = 1;
741 local->dingo = 1;
742 break;
743 }
744 } else {
745 switch(prodid & 15) {
746 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
747 break;
748 case 2: local->card_type = XIR_CE2; break;
749 case 3: local->card_type = XIR_CE3;
750 local->mohawk = 1;
751 break;
752 }
753 }
754 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
755 printk(KNOT_XIRC "Sorry, this is an old CE card\n");
756 return 0;
757 }
758 if (local->card_type == XIR_UNKNOWN)
759 printk(KNOT_XIRC "unknown card (mediaid=%02x prodid=%02x)\n",
760 mediaid, prodid);
761
762 return 1;
763}
764
765/****************
766 * There are some CE2 cards out which claim to be a CE card.
767 * This function looks for a "CE2" in the 3rd version field.
768 * Returns: true if this is a CE2
769 */
770static int
771has_ce2_string(dev_link_t * link)
772{
773 client_handle_t handle = link->handle;
774 tuple_t tuple;
775 cisparse_t parse;
776 u_char buf[256];
777
778 tuple.Attributes = 0;
779 tuple.TupleData = buf;
780 tuple.TupleDataMax = 254;
781 tuple.TupleOffset = 0;
782 tuple.DesiredTuple = CISTPL_VERS_1;
783 if (!first_tuple(handle, &tuple, &parse) && parse.version_1.ns > 2) {
784 if (strstr(parse.version_1.str + parse.version_1.ofs[2], "CE2"))
785 return 1;
786 }
787 return 0;
788}
789
790/****************
791 * xirc2ps_config() is scheduled to run after a CARD_INSERTION event
792 * is received, to configure the PCMCIA socket, and to make the
793 * ethernet device available to the system.
794 */
795static void
796xirc2ps_config(dev_link_t * link)
797{
798 client_handle_t handle = link->handle;
799 struct net_device *dev = link->priv;
800 local_info_t *local = netdev_priv(dev);
801 tuple_t tuple;
802 cisparse_t parse;
803 kio_addr_t ioaddr;
804 int err, i;
805 u_char buf[64];
806 cistpl_lan_node_id_t *node_id = (cistpl_lan_node_id_t*)parse.funce.data;
807 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
808
809 local->dingo_ccr = NULL;
810
811 DEBUG(0, "config(0x%p)\n", link);
812
813 /*
814 * This reads the card's CONFIG tuple to find its configuration
815 * registers.
816 */
817 tuple.Attributes = 0;
818 tuple.TupleData = buf;
819 tuple.TupleDataMax = 64;
820 tuple.TupleOffset = 0;
821
822 /* Is this a valid card */
823 tuple.DesiredTuple = CISTPL_MANFID;
824 if ((err=first_tuple(handle, &tuple, &parse))) {
825 printk(KNOT_XIRC "manfid not found in CIS\n");
826 goto failure;
827 }
828
829 switch(parse.manfid.manf) {
830 case MANFID_XIRCOM:
831 local->manf_str = "Xircom";
832 break;
833 case MANFID_ACCTON:
834 local->manf_str = "Accton";
835 break;
836 case MANFID_COMPAQ:
837 case MANFID_COMPAQ2:
838 local->manf_str = "Compaq";
839 break;
840 case MANFID_INTEL:
841 local->manf_str = "Intel";
842 break;
843 case MANFID_TOSHIBA:
844 local->manf_str = "Toshiba";
845 break;
846 default:
847 printk(KNOT_XIRC "Unknown Card Manufacturer ID: 0x%04x\n",
848 (unsigned)parse.manfid.manf);
849 goto failure;
850 }
851 DEBUG(0, "found %s card\n", local->manf_str);
852
853 if (!set_card_type(link, buf)) {
854 printk(KNOT_XIRC "this card is not supported\n");
855 goto failure;
856 }
857
858 /* get configuration stuff */
859 tuple.DesiredTuple = CISTPL_CONFIG;
860 if ((err=first_tuple(handle, &tuple, &parse)))
861 goto cis_error;
862 link->conf.ConfigBase = parse.config.base;
863 link->conf.Present = parse.config.rmask[0];
864
865 /* get the ethernet address from the CIS */
866 tuple.DesiredTuple = CISTPL_FUNCE;
867 for (err = first_tuple(handle, &tuple, &parse); !err;
868 err = next_tuple(handle, &tuple, &parse)) {
869 /* Once I saw two CISTPL_FUNCE_LAN_NODE_ID entries:
870 * the first one with a length of zero the second correct -
871 * so I skip all entries with length 0 */
872 if (parse.funce.type == CISTPL_FUNCE_LAN_NODE_ID
873 && ((cistpl_lan_node_id_t *)parse.funce.data)->nb)
874 break;
875 }
876 if (err) { /* not found: try to get the node-id from tuple 0x89 */
877 tuple.DesiredTuple = 0x89; /* data layout looks like tuple 0x22 */
878 if ((err = pcmcia_get_first_tuple(handle, &tuple)) == 0 &&
879 (err = pcmcia_get_tuple_data(handle, &tuple)) == 0) {
880 if (tuple.TupleDataLen == 8 && *buf == CISTPL_FUNCE_LAN_NODE_ID)
881 memcpy(&parse, buf, 8);
882 else
883 err = -1;
884 }
885 }
886 if (err) { /* another try (James Lehmer's CE2 version 4.1)*/
887 tuple.DesiredTuple = CISTPL_FUNCE;
888 for (err = first_tuple(handle, &tuple, &parse); !err;
889 err = next_tuple(handle, &tuple, &parse)) {
890 if (parse.funce.type == 0x02 && parse.funce.data[0] == 1
891 && parse.funce.data[1] == 6 && tuple.TupleDataLen == 13) {
892 buf[1] = 4;
893 memcpy(&parse, buf+1, 8);
894 break;
895 }
896 }
897 }
898 if (err) {
899 printk(KNOT_XIRC "node-id not found in CIS\n");
900 goto failure;
901 }
902 node_id = (cistpl_lan_node_id_t *)parse.funce.data;
903 if (node_id->nb != 6) {
904 printk(KNOT_XIRC "malformed node-id in CIS\n");
905 goto failure;
906 }
907 for (i=0; i < 6; i++)
908 dev->dev_addr[i] = node_id->id[i];
909
910 /* Configure card */
911 link->state |= DEV_CONFIG;
912
913 link->io.IOAddrLines =10;
914 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
915 link->irq.Attributes = IRQ_HANDLE_PRESENT;
916 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
917 if (local->modem) {
918 int pass;
919
920 if (do_sound) {
921 link->conf.Attributes |= CONF_ENABLE_SPKR;
922 link->conf.Status |= CCSR_AUDIO_ENA;
923 }
924 link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED ;
925 link->io.NumPorts2 = 8;
926 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
927 if (local->dingo) {
928 /* Take the Modem IO port from the CIS and scan for a free
929 * Ethernet port */
930 link->io.NumPorts1 = 16; /* no Mako stuff anymore */
931 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
932 for (err = first_tuple(handle, &tuple, &parse); !err;
933 err = next_tuple(handle, &tuple, &parse)) {
934 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8) {
935 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
936 link->conf.ConfigIndex = cf->index ;
937 link->io.BasePort2 = cf->io.win[0].base;
938 link->io.BasePort1 = ioaddr;
939 if (!(err=pcmcia_request_io(link->handle, &link->io)))
940 goto port_found;
941 }
942 }
943 }
944 } else {
945 link->io.NumPorts1 = 18;
946 /* We do 2 passes here: The first one uses the regular mapping and
947 * the second tries again, thereby considering that the 32 ports are
948 * mirrored every 32 bytes. Actually we use a mirrored port for
949 * the Mako if (on the first pass) the COR bit 5 is set.
950 */
951 for (pass=0; pass < 2; pass++) {
952 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
953 for (err = first_tuple(handle, &tuple, &parse); !err;
954 err = next_tuple(handle, &tuple, &parse)){
955 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8){
956 link->conf.ConfigIndex = cf->index ;
957 link->io.BasePort2 = cf->io.win[0].base;
958 link->io.BasePort1 = link->io.BasePort2
959 + (pass ? (cf->index & 0x20 ? -24:8)
960 : (cf->index & 0x20 ? 8:-24));
961 if (!(err=pcmcia_request_io(link->handle, &link->io)))
962 goto port_found;
963 }
964 }
965 }
966 /* if special option:
967 * try to configure as Ethernet only.
968 * .... */
969 }
970 printk(KNOT_XIRC "no ports available\n");
971 } else {
972 link->irq.Attributes |= IRQ_TYPE_EXCLUSIVE;
973 link->io.NumPorts1 = 16;
974 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
975 link->io.BasePort1 = ioaddr;
976 if (!(err=pcmcia_request_io(link->handle, &link->io)))
977 goto port_found;
978 }
979 link->io.BasePort1 = 0; /* let CS decide */
980 if ((err=pcmcia_request_io(link->handle, &link->io))) {
981 cs_error(link->handle, RequestIO, err);
982 goto config_error;
983 }
984 }
985 port_found:
986 if (err)
987 goto config_error;
988
989 /****************
990 * Now allocate an interrupt line. Note that this does not
991 * actually assign a handler to the interrupt.
992 */
993 if ((err=pcmcia_request_irq(link->handle, &link->irq))) {
994 cs_error(link->handle, RequestIRQ, err);
995 goto config_error;
996 }
997
998 /****************
999 * This actually configures the PCMCIA socket -- setting up
1000 * the I/O windows and the interrupt mapping.
1001 */
1002 if ((err=pcmcia_request_configuration(link->handle, &link->conf))) {
1003 cs_error(link->handle, RequestConfiguration, err);
1004 goto config_error;
1005 }
1006
1007 if (local->dingo) {
1008 conf_reg_t reg;
1009 win_req_t req;
1010 memreq_t mem;
1011
1012 /* Reset the modem's BAR to the correct value
1013 * This is necessary because in the RequestConfiguration call,
1014 * the base address of the ethernet port (BasePort1) is written
1015 * to the BAR registers of the modem.
1016 */
1017 reg.Action = CS_WRITE;
1018 reg.Offset = CISREG_IOBASE_0;
1019 reg.Value = link->io.BasePort2 & 0xff;
1020 if ((err = pcmcia_access_configuration_register(link->handle, &reg))) {
1021 cs_error(link->handle, AccessConfigurationRegister, err);
1022 goto config_error;
1023 }
1024 reg.Action = CS_WRITE;
1025 reg.Offset = CISREG_IOBASE_1;
1026 reg.Value = (link->io.BasePort2 >> 8) & 0xff;
1027 if ((err = pcmcia_access_configuration_register(link->handle, &reg))) {
1028 cs_error(link->handle, AccessConfigurationRegister, err);
1029 goto config_error;
1030 }
1031
1032 /* There is no config entry for the Ethernet part which
1033 * is at 0x0800. So we allocate a window into the attribute
1034 * memory and write direct to the CIS registers
1035 */
1036 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
1037 req.Base = req.Size = 0;
1038 req.AccessSpeed = 0;
1039 if ((err = pcmcia_request_window(&link->handle, &req, &link->win))) {
1040 cs_error(link->handle, RequestWindow, err);
1041 goto config_error;
1042 }
1043 local->dingo_ccr = ioremap(req.Base,0x1000) + 0x0800;
1044 mem.CardOffset = 0x0;
1045 mem.Page = 0;
1046 if ((err = pcmcia_map_mem_page(link->win, &mem))) {
1047 cs_error(link->handle, MapMemPage, err);
1048 goto config_error;
1049 }
1050
1051 /* Setup the CCRs; there are no infos in the CIS about the Ethernet
1052 * part.
1053 */
1054 writeb(0x47, local->dingo_ccr + CISREG_COR);
1055 ioaddr = link->io.BasePort1;
1056 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
1057 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
1058
1059 #if 0
1060 {
1061 u_char tmp;
1062 printk(KERN_INFO "ECOR:");
1063 for (i=0; i < 7; i++) {
1064 tmp = readb(local->dingo_ccr + i*2);
1065 printk(" %02x", tmp);
1066 }
1067 printk("\n");
1068 printk(KERN_INFO "DCOR:");
1069 for (i=0; i < 4; i++) {
1070 tmp = readb(local->dingo_ccr + 0x20 + i*2);
1071 printk(" %02x", tmp);
1072 }
1073 printk("\n");
1074 printk(KERN_INFO "SCOR:");
1075 for (i=0; i < 10; i++) {
1076 tmp = readb(local->dingo_ccr + 0x40 + i*2);
1077 printk(" %02x", tmp);
1078 }
1079 printk("\n");
1080 }
1081 #endif
1082
1083 writeb(0x01, local->dingo_ccr + 0x20);
1084 writeb(0x0c, local->dingo_ccr + 0x22);
1085 writeb(0x00, local->dingo_ccr + 0x24);
1086 writeb(0x00, local->dingo_ccr + 0x26);
1087 writeb(0x00, local->dingo_ccr + 0x28);
1088 }
1089
1090 /* The if_port symbol can be set when the module is loaded */
1091 local->probe_port=0;
1092 if (!if_port) {
1093 local->probe_port = dev->if_port = 1;
1094 } else if ((if_port >= 1 && if_port <= 2) ||
1095 (local->mohawk && if_port==4))
1096 dev->if_port = if_port;
1097 else
1098 printk(KNOT_XIRC "invalid if_port requested\n");
1099
1100 /* we can now register the device with the net subsystem */
1101 dev->irq = link->irq.AssignedIRQ;
1102 dev->base_addr = link->io.BasePort1;
1103
1104 if (local->dingo)
1105 do_reset(dev, 1); /* a kludge to make the cem56 work */
1106
1107 link->dev = &local->node;
1108 link->state &= ~DEV_CONFIG_PENDING;
1109 SET_NETDEV_DEV(dev, &handle_to_dev(handle));
1110
1111 if ((err=register_netdev(dev))) {
1112 printk(KNOT_XIRC "register_netdev() failed\n");
1113 link->dev = NULL;
1114 goto config_error;
1115 }
1116
1117 strcpy(local->node.dev_name, dev->name);
1118
1119 /* give some infos about the hardware */
1120 printk(KERN_INFO "%s: %s: port %#3lx, irq %d, hwaddr",
1121 dev->name, local->manf_str,(u_long)dev->base_addr, (int)dev->irq);
1122 for (i = 0; i < 6; i++)
1123 printk("%c%02X", i?':':' ', dev->dev_addr[i]);
1124 printk("\n");
1125
1126 return;
1127
1128 config_error:
1129 link->state &= ~DEV_CONFIG_PENDING;
1130 xirc2ps_release(link);
1131 return;
1132
1133 cis_error:
1134 printk(KNOT_XIRC "unable to parse CIS\n");
1135 failure:
1136 link->state &= ~DEV_CONFIG_PENDING;
1137} /* xirc2ps_config */
1138
1139/****************
1140 * After a card is removed, xirc2ps_release() will unregister the net
1141 * device, and release the PCMCIA configuration. If the device is
1142 * still open, this will be postponed until it is closed.
1143 */
1144static void
1145xirc2ps_release(dev_link_t *link)
1146{
1147
1148 DEBUG(0, "release(0x%p)\n", link);
1149
1150 if (link->win) {
1151 struct net_device *dev = link->priv;
1152 local_info_t *local = netdev_priv(dev);
1153 if (local->dingo)
1154 iounmap(local->dingo_ccr - 0x0800);
1155 pcmcia_release_window(link->win);
1156 }
1157 pcmcia_release_configuration(link->handle);
1158 pcmcia_release_io(link->handle, &link->io);
1159 pcmcia_release_irq(link->handle, &link->irq);
1160 link->state &= ~DEV_CONFIG;
1161
1162} /* xirc2ps_release */
1163
1164/*====================================================================*/
1165
1166/****************
1167 * The card status event handler. Mostly, this schedules other
1168 * stuff to run after an event is received. A CARD_REMOVAL event
1169 * also sets some flags to discourage the net drivers from trying
1170 * to talk to the card any more.
1171 *
1172 * When a CARD_REMOVAL event is received, we immediately set a flag
1173 * to block future accesses to this device. All the functions that
1174 * actually access the device should check this flag to make sure
1175 * the card is still present.
1176 */
1177
1178static int
1179xirc2ps_event(event_t event, int priority,
1180 event_callback_args_t * args)
1181{
1182 dev_link_t *link = args->client_data;
1183 struct net_device *dev = link->priv;
1184
1185 DEBUG(0, "event(%d)\n", (int)event);
1186
1187 switch (event) {
1188 case CS_EVENT_REGISTRATION_COMPLETE:
1189 DEBUG(0, "registration complete\n");
1190 break;
1191 case CS_EVENT_CARD_REMOVAL:
1192 link->state &= ~DEV_PRESENT;
1193 if (link->state & DEV_CONFIG)
1194 netif_device_detach(dev);
1195 break;
1196 case CS_EVENT_CARD_INSERTION:
1197 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
1198 xirc2ps_config(link);
1199 break;
1200 case CS_EVENT_PM_SUSPEND:
1201 link->state |= DEV_SUSPEND;
1202 /* Fall through... */
1203 case CS_EVENT_RESET_PHYSICAL:
1204 if (link->state & DEV_CONFIG) {
1205 if (link->open) {
1206 netif_device_detach(dev);
1207 do_powerdown(dev);
1208 }
1209 pcmcia_release_configuration(link->handle);
1210 }
1211 break;
1212 case CS_EVENT_PM_RESUME:
1213 link->state &= ~DEV_SUSPEND;
1214 /* Fall through... */
1215 case CS_EVENT_CARD_RESET:
1216 if (link->state & DEV_CONFIG) {
1217 pcmcia_request_configuration(link->handle, &link->conf);
1218 if (link->open) {
1219 do_reset(dev,1);
1220 netif_device_attach(dev);
1221 }
1222 }
1223 break;
1224 }
1225 return 0;
1226} /* xirc2ps_event */
1227
1228/*====================================================================*/
1229
1230/****************
1231 * This is the Interrupt service route.
1232 */
1233static irqreturn_t
1234xirc2ps_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1235{
1236 struct net_device *dev = (struct net_device *)dev_id;
1237 local_info_t *lp = netdev_priv(dev);
1238 kio_addr_t ioaddr;
1239 u_char saved_page;
1240 unsigned bytes_rcvd;
1241 unsigned int_status, eth_status, rx_status, tx_status;
1242 unsigned rsr, pktlen;
1243 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
1244 * is this something to worry about?
1245 * -- on a laptop?
1246 */
1247
1248 if (!netif_device_present(dev))
1249 return IRQ_HANDLED;
1250
1251 ioaddr = dev->base_addr;
1252 if (lp->mohawk) { /* must disable the interrupt */
1253 PutByte(XIRCREG_CR, 0);
1254 }
1255
1256 DEBUG(6, "%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
1257
1258 saved_page = GetByte(XIRCREG_PR);
1259 /* Read the ISR to see whats the cause for the interrupt.
1260 * This also clears the interrupt flags on CE2 cards
1261 */
1262 int_status = GetByte(XIRCREG_ISR);
1263 bytes_rcvd = 0;
1264 loop_entry:
1265 if (int_status == 0xff) { /* card may be ejected */
1266 DEBUG(3, "%s: interrupt %d for dead card\n", dev->name, irq);
1267 goto leave;
1268 }
1269 eth_status = GetByte(XIRCREG_ESR);
1270
1271 SelectPage(0x40);
1272 rx_status = GetByte(XIRCREG40_RXST0);
1273 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
1274 tx_status = GetByte(XIRCREG40_TXST0);
1275 tx_status |= GetByte(XIRCREG40_TXST1) << 8;
1276 PutByte(XIRCREG40_TXST0, 0);
1277 PutByte(XIRCREG40_TXST1, 0);
1278
1279 DEBUG(3, "%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
1280 dev->name, int_status, eth_status, rx_status, tx_status);
1281
1282 /***** receive section ******/
1283 SelectPage(0);
1284 while (eth_status & FullPktRcvd) {
1285 rsr = GetByte(XIRCREG0_RSR);
1286 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
1287 /* too many bytes received during this int, drop the rest of the
1288 * packets */
1289 lp->stats.rx_dropped++;
1290 DEBUG(2, "%s: RX drop, too much done\n", dev->name);
1291 } else if (rsr & PktRxOk) {
1292 struct sk_buff *skb;
1293
1294 pktlen = GetWord(XIRCREG0_RBC);
1295 bytes_rcvd += pktlen;
1296
1297 DEBUG(5, "rsr=%#02x packet_length=%u\n", rsr, pktlen);
1298
1299 skb = dev_alloc_skb(pktlen+3); /* 1 extra so we can use insw */
1300 if (!skb) {
1301 printk(KNOT_XIRC "low memory, packet dropped (size=%u)\n",
1302 pktlen);
1303 lp->stats.rx_dropped++;
1304 } else { /* okay get the packet */
1305 skb_reserve(skb, 2);
1306 if (lp->silicon == 0 ) { /* work around a hardware bug */
1307 unsigned rhsa; /* receive start address */
1308
1309 SelectPage(5);
1310 rhsa = GetWord(XIRCREG5_RHSA0);
1311 SelectPage(0);
1312 rhsa += 3; /* skip control infos */
1313 if (rhsa >= 0x8000)
1314 rhsa = 0;
1315 if (rhsa + pktlen > 0x8000) {
1316 unsigned i;
1317 u_char *buf = skb_put(skb, pktlen);
1318 for (i=0; i < pktlen ; i++, rhsa++) {
1319 buf[i] = GetByte(XIRCREG_EDP);
1320 if (rhsa == 0x8000) {
1321 rhsa = 0;
1322 i--;
1323 }
1324 }
1325 } else {
1326 insw(ioaddr+XIRCREG_EDP,
1327 skb_put(skb, pktlen), (pktlen+1)>>1);
1328 }
1329 }
1330 #if 0
1331 else if (lp->mohawk) {
1332 /* To use this 32 bit access we should use
1333 * a manual optimized loop
1334 * Also the words are swapped, we can get more
1335 * performance by using 32 bit access and swapping
1336 * the words in a register. Will need this for cardbus
1337 *
1338 * Note: don't forget to change the ALLOC_SKB to .. +3
1339 */
1340 unsigned i;
1341 u_long *p = skb_put(skb, pktlen);
1342 register u_long a;
1343 kio_addr_t edpreg = ioaddr+XIRCREG_EDP-2;
1344 for (i=0; i < len ; i += 4, p++) {
1345 a = inl(edpreg);
1346 __asm__("rorl $16,%0\n\t"
1347 :"=q" (a)
1348 : "0" (a));
1349 *p = a;
1350 }
1351 }
1352 #endif
1353 else {
1354 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
1355 (pktlen+1)>>1);
1356 }
1357 skb->protocol = eth_type_trans(skb, dev);
1358 skb->dev = dev;
1359 netif_rx(skb);
1360 dev->last_rx = jiffies;
1361 lp->stats.rx_packets++;
1362 lp->stats.rx_bytes += pktlen;
1363 if (!(rsr & PhyPkt))
1364 lp->stats.multicast++;
1365 }
1366 } else { /* bad packet */
1367 DEBUG(5, "rsr=%#02x\n", rsr);
1368 }
1369 if (rsr & PktTooLong) {
1370 lp->stats.rx_frame_errors++;
1371 DEBUG(3, "%s: Packet too long\n", dev->name);
1372 }
1373 if (rsr & CRCErr) {
1374 lp->stats.rx_crc_errors++;
1375 DEBUG(3, "%s: CRC error\n", dev->name);
1376 }
1377 if (rsr & AlignErr) {
1378 lp->stats.rx_fifo_errors++; /* okay ? */
1379 DEBUG(3, "%s: Alignment error\n", dev->name);
1380 }
1381
1382 /* clear the received/dropped/error packet */
1383 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
1384
1385 /* get the new ethernet status */
1386 eth_status = GetByte(XIRCREG_ESR);
1387 }
1388 if (rx_status & 0x10) { /* Receive overrun */
1389 lp->stats.rx_over_errors++;
1390 PutByte(XIRCREG_CR, ClearRxOvrun);
1391 DEBUG(3, "receive overrun cleared\n");
1392 }
1393
1394 /***** transmit section ******/
1395 if (int_status & PktTxed) {
1396 unsigned n, nn;
1397
1398 n = lp->last_ptr_value;
1399 nn = GetByte(XIRCREG0_PTR);
1400 lp->last_ptr_value = nn;
1401 if (nn < n) /* rollover */
1402 lp->stats.tx_packets += 256 - n;
1403 else if (n == nn) { /* happens sometimes - don't know why */
1404 DEBUG(0, "PTR not changed?\n");
1405 } else
1406 lp->stats.tx_packets += lp->last_ptr_value - n;
1407 netif_wake_queue(dev);
1408 }
1409 if (tx_status & 0x0002) { /* Execessive collissions */
1410 DEBUG(0, "tx restarted due to execssive collissions\n");
1411 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
1412 }
1413 if (tx_status & 0x0040)
1414 lp->stats.tx_aborted_errors++;
1415
1416 /* recalculate our work chunk so that we limit the duration of this
1417 * ISR to about 1/10 of a second.
1418 * Calculate only if we received a reasonable amount of bytes.
1419 */
1420 if (bytes_rcvd > 1000) {
1421 u_long duration = jiffies - start_ticks;
1422
1423 if (duration >= HZ/10) { /* if more than about 1/10 second */
1424 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
1425 if (maxrx_bytes < 2000)
1426 maxrx_bytes = 2000;
1427 else if (maxrx_bytes > 22000)
1428 maxrx_bytes = 22000;
1429 DEBUG(1, "set maxrx=%u (rcvd=%u ticks=%lu)\n",
1430 maxrx_bytes, bytes_rcvd, duration);
1431 } else if (!duration && maxrx_bytes < 22000) {
1432 /* now much faster */
1433 maxrx_bytes += 2000;
1434 if (maxrx_bytes > 22000)
1435 maxrx_bytes = 22000;
1436 DEBUG(1, "set maxrx=%u\n", maxrx_bytes);
1437 }
1438 }
1439
1440 leave:
1441 if (lockup_hack) {
1442 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
1443 goto loop_entry;
1444 }
1445 SelectPage(saved_page);
1446 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
1447 /* Instead of dropping packets during a receive, we could
1448 * force an interrupt with this command:
1449 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
1450 */
1451 return IRQ_HANDLED;
1452} /* xirc2ps_interrupt */
1453
1454/*====================================================================*/
1455
1456static void
1457do_tx_timeout(struct net_device *dev)
1458{
1459 local_info_t *lp = netdev_priv(dev);
1460 printk(KERN_NOTICE "%s: transmit timed out\n", dev->name);
1461 lp->stats.tx_errors++;
1462 /* reset the card */
1463 do_reset(dev,1);
1464 dev->trans_start = jiffies;
1465 netif_wake_queue(dev);
1466}
1467
1468static int
1469do_start_xmit(struct sk_buff *skb, struct net_device *dev)
1470{
1471 local_info_t *lp = netdev_priv(dev);
1472 kio_addr_t ioaddr = dev->base_addr;
1473 int okay;
1474 unsigned freespace;
1475 unsigned pktlen = skb? skb->len : 0;
1476
1477 DEBUG(1, "do_start_xmit(skb=%p, dev=%p) len=%u\n",
1478 skb, dev, pktlen);
1479
1480
1481 /* adjust the packet length to min. required
1482 * and hope that the buffer is large enough
1483 * to provide some random data.
1484 * fixme: For Mohawk we can change this by sending
1485 * a larger packetlen than we actually have; the chip will
1486 * pad this in his buffer with random bytes
1487 */
1488 if (pktlen < ETH_ZLEN)
1489 {
1490 skb = skb_padto(skb, ETH_ZLEN);
1491 if (skb == NULL)
1492 return 0;
1493 pktlen = ETH_ZLEN;
1494 }
1495
1496 netif_stop_queue(dev);
1497 SelectPage(0);
1498 PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
1499 freespace = GetWord(XIRCREG0_TSO);
1500 okay = freespace & 0x8000;
1501 freespace &= 0x7fff;
1502 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
1503 okay = pktlen +2 < freespace;
1504 DEBUG(2 + (okay ? 2 : 0), "%s: avail. tx space=%u%s\n",
1505 dev->name, freespace, okay ? " (okay)":" (not enough)");
1506 if (!okay) { /* not enough space */
1507 return 1; /* upper layer may decide to requeue this packet */
1508 }
1509 /* send the packet */
1510 PutWord(XIRCREG_EDP, (u_short)pktlen);
1511 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
1512 if (pktlen & 1)
1513 PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
1514
1515 if (lp->mohawk)
1516 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
1517
1518 dev_kfree_skb (skb);
1519 dev->trans_start = jiffies;
1520 lp->stats.tx_bytes += pktlen;
1521 netif_start_queue(dev);
1522 return 0;
1523}
1524
1525static struct net_device_stats *
1526do_get_stats(struct net_device *dev)
1527{
1528 local_info_t *lp = netdev_priv(dev);
1529
1530 /* lp->stats.rx_missed_errors = GetByte(?) */
1531 return &lp->stats;
1532}
1533
1534/****************
1535 * Set all addresses: This first one is the individual address,
1536 * the next 9 addresses are taken from the multicast list and
1537 * the rest is filled with the individual address.
1538 */
1539static void
1540set_addresses(struct net_device *dev)
1541{
1542 kio_addr_t ioaddr = dev->base_addr;
1543 local_info_t *lp = netdev_priv(dev);
1544 struct dev_mc_list *dmi = dev->mc_list;
1545 char *addr;
1546 int i,j,k,n;
1547
1548 SelectPage(k=0x50);
1549 for (i=0,j=8,n=0; ; i++, j++) {
1550 if (i > 5) {
1551 if (++n > 9)
1552 break;
1553 i = 0;
1554 }
1555 if (j > 15) {
1556 j = 8;
1557 k++;
1558 SelectPage(k);
1559 }
1560
1561 if (n && n <= dev->mc_count && dmi) {
1562 addr = dmi->dmi_addr;
1563 dmi = dmi->next;
1564 } else
1565 addr = dev->dev_addr;
1566
1567 if (lp->mohawk)
1568 PutByte(j, addr[5-i]);
1569 else
1570 PutByte(j, addr[i]);
1571 }
1572 SelectPage(0);
1573}
1574
1575/****************
1576 * Set or clear the multicast filter for this adaptor.
1577 * We can filter up to 9 addresses, if more are requested we set
1578 * multicast promiscuous mode.
1579 */
1580
1581static void
1582set_multicast_list(struct net_device *dev)
1583{
1584 kio_addr_t ioaddr = dev->base_addr;
1585
1586 SelectPage(0x42);
1587 if (dev->flags & IFF_PROMISC) { /* snoop */
1588 PutByte(XIRCREG42_SWC1, 0x06); /* set MPE and PME */
1589 } else if (dev->mc_count > 9 || (dev->flags & IFF_ALLMULTI)) {
1590 PutByte(XIRCREG42_SWC1, 0x06); /* set MPE */
1591 } else if (dev->mc_count) {
1592 /* the chip can filter 9 addresses perfectly */
1593 PutByte(XIRCREG42_SWC1, 0x00);
1594 SelectPage(0x40);
1595 PutByte(XIRCREG40_CMD0, Offline);
1596 set_addresses(dev);
1597 SelectPage(0x40);
1598 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1599 } else { /* standard usage */
1600 PutByte(XIRCREG42_SWC1, 0x00);
1601 }
1602 SelectPage(0);
1603}
1604
1605static int
1606do_config(struct net_device *dev, struct ifmap *map)
1607{
1608 local_info_t *local = netdev_priv(dev);
1609
1610 DEBUG(0, "do_config(%p)\n", dev);
1611 if (map->port != 255 && map->port != dev->if_port) {
1612 if (map->port > 4)
1613 return -EINVAL;
1614 if (!map->port) {
1615 local->probe_port = 1;
1616 dev->if_port = 1;
1617 } else {
1618 local->probe_port = 0;
1619 dev->if_port = map->port;
1620 }
1621 printk(KERN_INFO "%s: switching to %s port\n",
1622 dev->name, if_names[dev->if_port]);
1623 do_reset(dev,1); /* not the fine way :-) */
1624 }
1625 return 0;
1626}
1627
1628/****************
1629 * Open the driver
1630 */
1631static int
1632do_open(struct net_device *dev)
1633{
1634 local_info_t *lp = netdev_priv(dev);
1635 dev_link_t *link = &lp->link;
1636
1637 DEBUG(0, "do_open(%p)\n", dev);
1638
1639 /* Check that the PCMCIA card is still here. */
1640 /* Physical device present signature. */
1641 if (!DEV_OK(link))
1642 return -ENODEV;
1643
1644 /* okay */
1645 link->open++;
1646
1647 netif_start_queue(dev);
1648 do_reset(dev,1);
1649
1650 return 0;
1651}
1652
1653static void netdev_get_drvinfo(struct net_device *dev,
1654 struct ethtool_drvinfo *info)
1655{
1656 strcpy(info->driver, "xirc2ps_cs");
1657 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
1658}
1659
1660static struct ethtool_ops netdev_ethtool_ops = {
1661 .get_drvinfo = netdev_get_drvinfo,
1662};
1663
1664static int
1665do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1666{
1667 local_info_t *local = netdev_priv(dev);
1668 kio_addr_t ioaddr = dev->base_addr;
1669 u16 *data = (u16 *)&rq->ifr_ifru;
1670
1671 DEBUG(1, "%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
1672 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
1673 data[0], data[1], data[2], data[3]);
1674
1675 if (!local->mohawk)
1676 return -EOPNOTSUPP;
1677
1678 switch(cmd) {
1679 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
1680 data[0] = 0; /* we have only this address */
1681 /* fall trough */
1682 case SIOCGMIIREG: /* Read the specified MII register. */
1683 data[3] = mii_rd(ioaddr, data[0] & 0x1f, data[1] & 0x1f);
1684 break;
1685 case SIOCSMIIREG: /* Write the specified MII register */
1686 if (!capable(CAP_NET_ADMIN))
1687 return -EPERM;
1688 mii_wr(ioaddr, data[0] & 0x1f, data[1] & 0x1f, data[2], 16);
1689 break;
1690 default:
1691 return -EOPNOTSUPP;
1692 }
1693 return 0;
1694}
1695
1696static void
1697hardreset(struct net_device *dev)
1698{
1699 local_info_t *local = netdev_priv(dev);
1700 kio_addr_t ioaddr = dev->base_addr;
1701
1702 SelectPage(4);
1703 udelay(1);
1704 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1705 msleep(40); /* wait 40 msec */
1706 if (local->mohawk)
1707 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
1708 else
1709 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
1710 msleep(20); /* wait 20 msec */
1711}
1712
1713static void
1714do_reset(struct net_device *dev, int full)
1715{
1716 local_info_t *local = netdev_priv(dev);
1717 kio_addr_t ioaddr = dev->base_addr;
1718 unsigned value;
1719
1720 DEBUG(0, "%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
1721
1722 hardreset(dev);
1723 PutByte(XIRCREG_CR, SoftReset); /* set */
1724 msleep(20); /* wait 20 msec */
1725 PutByte(XIRCREG_CR, 0); /* clear */
1726 msleep(40); /* wait 40 msec */
1727 if (local->mohawk) {
1728 SelectPage(4);
1729 /* set pin GP1 and GP2 to output (0x0c)
1730 * set GP1 to low to power up the ML6692 (0x00)
1731 * set GP2 to high to power up the 10Mhz chip (0x02)
1732 */
1733 PutByte(XIRCREG4_GPR0, 0x0e);
1734 }
1735
1736 /* give the circuits some time to power up */
1737 msleep(500); /* about 500ms */
1738
1739 local->last_ptr_value = 0;
1740 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
1741 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
1742
1743 if (local->probe_port) {
1744 if (!local->mohawk) {
1745 SelectPage(4);
1746 PutByte(XIRCREG4_GPR0, 4);
1747 local->probe_port = 0;
1748 }
1749 } else if (dev->if_port == 2) { /* enable 10Base2 */
1750 SelectPage(0x42);
1751 PutByte(XIRCREG42_SWC1, 0xC0);
1752 } else { /* enable 10BaseT */
1753 SelectPage(0x42);
1754 PutByte(XIRCREG42_SWC1, 0x80);
1755 }
1756 msleep(40); /* wait 40 msec to let it complete */
1757
1758 #ifdef PCMCIA_DEBUG
1759 if (pc_debug) {
1760 SelectPage(0);
1761 value = GetByte(XIRCREG_ESR); /* read the ESR */
1762 printk(KERN_DEBUG "%s: ESR is: %#02x\n", dev->name, value);
1763 }
1764 #endif
1765
1766 /* setup the ECR */
1767 SelectPage(1);
1768 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
1769 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
1770 value = GetByte(XIRCREG1_ECR);
1771 #if 0
1772 if (local->mohawk)
1773 value |= DisableLinkPulse;
1774 PutByte(XIRCREG1_ECR, value);
1775 #endif
1776 DEBUG(0, "%s: ECR is: %#02x\n", dev->name, value);
1777
1778 SelectPage(0x42);
1779 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
1780
1781 if (local->silicon != 1) {
1782 /* set the local memory dividing line.
1783 * The comments in the sample code say that this is only
1784 * settable with the scipper version 2 which is revision 0.
1785 * Always for CE3 cards
1786 */
1787 SelectPage(2);
1788 PutWord(XIRCREG2_RBS, 0x2000);
1789 }
1790
1791 if (full)
1792 set_addresses(dev);
1793
1794 /* Hardware workaround:
1795 * The receive byte pointer after reset is off by 1 so we need
1796 * to move the offset pointer back to 0.
1797 */
1798 SelectPage(0);
1799 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
1800
1801 /* setup MAC IMRs and clear status registers */
1802 SelectPage(0x40); /* Bit 7 ... bit 0 */
1803 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
1804 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1805 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
1806 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
1807 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1808 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
1809
1810 if (full && local->mohawk && init_mii(dev)) {
1811 if (dev->if_port == 4 || local->dingo || local->new_mii) {
1812 printk(KERN_INFO "%s: MII selected\n", dev->name);
1813 SelectPage(2);
1814 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
1815 msleep(20);
1816 } else {
1817 printk(KERN_INFO "%s: MII detected; using 10mbs\n",
1818 dev->name);
1819 SelectPage(0x42);
1820 if (dev->if_port == 2) /* enable 10Base2 */
1821 PutByte(XIRCREG42_SWC1, 0xC0);
1822 else /* enable 10BaseT */
1823 PutByte(XIRCREG42_SWC1, 0x80);
1824 msleep(40); /* wait 40 msec to let it complete */
1825 }
1826 if (full_duplex)
1827 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
1828 } else { /* No MII */
1829 SelectPage(0);
1830 value = GetByte(XIRCREG_ESR); /* read the ESR */
1831 dev->if_port = (value & MediaSelect) ? 1 : 2;
1832 }
1833
1834 /* configure the LEDs */
1835 SelectPage(2);
1836 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
1837 PutByte(XIRCREG2_LED, 0x3b);
1838 else /* Coax: Not-Collision and Activity */
1839 PutByte(XIRCREG2_LED, 0x3a);
1840
1841 if (local->dingo)
1842 PutByte(0x0b, 0x04); /* 100 Mbit LED */
1843
1844 /* enable receiver and put the mac online */
1845 if (full) {
1846 SelectPage(0x40);
1847 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1848 }
1849
1850 /* setup Ethernet IMR and enable interrupts */
1851 SelectPage(1);
1852 PutByte(XIRCREG1_IMR0, 0xff);
1853 udelay(1);
1854 SelectPage(0);
1855 PutByte(XIRCREG_CR, EnableIntr);
1856 if (local->modem && !local->dingo) { /* do some magic */
1857 if (!(GetByte(0x10) & 0x01))
1858 PutByte(0x10, 0x11); /* unmask master-int bit */
1859 }
1860
1861 if (full)
1862 printk(KERN_INFO "%s: media %s, silicon revision %d\n",
1863 dev->name, if_names[dev->if_port], local->silicon);
1864 /* We should switch back to page 0 to avoid a bug in revision 0
1865 * where regs with offset below 8 can't be read after an access
1866 * to the MAC registers */
1867 SelectPage(0);
1868}
1869
1870/****************
1871 * Initialize the Media-Independent-Interface
1872 * Returns: True if we have a good MII
1873 */
1874static int
1875init_mii(struct net_device *dev)
1876{
1877 local_info_t *local = netdev_priv(dev);
1878 kio_addr_t ioaddr = dev->base_addr;
1879 unsigned control, status, linkpartner;
1880 int i;
1881
1882 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
1883 dev->if_port = if_port;
1884 local->probe_port = 0;
1885 return 1;
1886 }
1887
1888 status = mii_rd(ioaddr, 0, 1);
1889 if ((status & 0xff00) != 0x7800)
1890 return 0; /* No MII */
1891
1892 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
1893
1894 if (local->probe_port)
1895 control = 0x1000; /* auto neg */
1896 else if (dev->if_port == 4)
1897 control = 0x2000; /* no auto neg, 100mbs mode */
1898 else
1899 control = 0x0000; /* no auto neg, 10mbs mode */
1900 mii_wr(ioaddr, 0, 0, control, 16);
1901 udelay(100);
1902 control = mii_rd(ioaddr, 0, 0);
1903
1904 if (control & 0x0400) {
1905 printk(KERN_NOTICE "%s can't take PHY out of isolation mode\n",
1906 dev->name);
1907 local->probe_port = 0;
1908 return 0;
1909 }
1910
1911 if (local->probe_port) {
1912 /* according to the DP83840A specs the auto negotiation process
1913 * may take up to 3.5 sec, so we use this also for our ML6692
1914 * Fixme: Better to use a timer here!
1915 */
1916 for (i=0; i < 35; i++) {
1917 msleep(100); /* wait 100 msec */
1918 status = mii_rd(ioaddr, 0, 1);
1919 if ((status & 0x0020) && (status & 0x0004))
1920 break;
1921 }
1922
1923 if (!(status & 0x0020)) {
1924 printk(KERN_INFO "%s: autonegotiation failed;"
1925 " using 10mbs\n", dev->name);
1926 if (!local->new_mii) {
1927 control = 0x0000;
1928 mii_wr(ioaddr, 0, 0, control, 16);
1929 udelay(100);
1930 SelectPage(0);
1931 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
1932 }
1933 } else {
1934 linkpartner = mii_rd(ioaddr, 0, 5);
1935 printk(KERN_INFO "%s: MII link partner: %04x\n",
1936 dev->name, linkpartner);
1937 if (linkpartner & 0x0080) {
1938 dev->if_port = 4;
1939 } else
1940 dev->if_port = 1;
1941 }
1942 }
1943
1944 return 1;
1945}
1946
1947static void
1948do_powerdown(struct net_device *dev)
1949{
1950
1951 kio_addr_t ioaddr = dev->base_addr;
1952
1953 DEBUG(0, "do_powerdown(%p)\n", dev);
1954
1955 SelectPage(4);
1956 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1957 SelectPage(0);
1958}
1959
1960static int
1961do_stop(struct net_device *dev)
1962{
1963 kio_addr_t ioaddr = dev->base_addr;
1964 local_info_t *lp = netdev_priv(dev);
1965 dev_link_t *link = &lp->link;
1966
1967 DEBUG(0, "do_stop(%p)\n", dev);
1968
1969 if (!link)
1970 return -ENODEV;
1971
1972 netif_stop_queue(dev);
1973
1974 SelectPage(0);
1975 PutByte(XIRCREG_CR, 0); /* disable interrupts */
1976 SelectPage(0x01);
1977 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
1978 SelectPage(4);
1979 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1980 SelectPage(0);
1981
1982 link->open--;
1983 return 0;
1984}
1985
1986static struct pcmcia_driver xirc2ps_cs_driver = {
1987 .owner = THIS_MODULE,
1988 .drv = {
1989 .name = "xirc2ps_cs",
1990 },
1991 .attach = xirc2ps_attach,
1992 .detach = xirc2ps_detach,
1993};
1994
1995static int __init
1996init_xirc2ps_cs(void)
1997{
1998 return pcmcia_register_driver(&xirc2ps_cs_driver);
1999}
2000
2001static void __exit
2002exit_xirc2ps_cs(void)
2003{
2004 pcmcia_unregister_driver(&xirc2ps_cs_driver);
2005 BUG_ON(dev_list != NULL);
2006}
2007
2008module_init(init_xirc2ps_cs);
2009module_exit(exit_xirc2ps_cs);
2010
2011#ifndef MODULE
2012static int __init setup_xirc2ps_cs(char *str)
2013{
2014 /* if_port, full_duplex, do_sound, lockup_hack
2015 */
2016 int ints[10] = { -1 };
2017
2018 str = get_options(str, 9, ints);
2019
2020#define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
2021 MAYBE_SET(if_port, 3);
2022 MAYBE_SET(full_duplex, 4);
2023 MAYBE_SET(do_sound, 5);
2024 MAYBE_SET(lockup_hack, 6);
2025#undef MAYBE_SET
2026
2027 return 0;
2028}
2029
2030__setup("xirc2ps_cs=", setup_xirc2ps_cs);
2031#endif
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