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
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.
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.
14 * Written originally by Werner Koch based on David Hinds' skeleton of the
17 * Copyright (c) 1997,1998 Werner Koch (dd9jn)
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.
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.
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
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.)
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
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
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.
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>
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>
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>
92 #include <asm/system.h>
93 #include <asm/uaccess.h>
96 #define MANFID_COMPAQ 0x0138
97 #define MANFID_COMPAQ2 0x0183 /* is this correct? */
100 #include <pcmcia/ds.h>
102 /* Time in jiffies before concluding Tx hung */
103 #define TX_TIMEOUT ((400*HZ)/1000)
106 * Some constants used to access the hardware
109 /* Register offsets and value constans */
110 #define XIRCREG_CR 0 /* Command register (wr) */
112 TransmitPacket = 0x01,
120 #define XIRCREG_ESR 0 /* Ethernet status register (rd) */
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 */
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 */
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 */
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) */
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 */
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 */
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 */
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
176 #define XIRCREG2_MSR 12 /* Mohawk specific register */
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) */
186 enum xirc_cmd { /* Commands */
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) */
212 static char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" };
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.
222 static int pc_debug = PCMCIA_DEBUG;
223 MODULE_PARM(pc_debug, "i");
224 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KDBG_XIRC args)
226 #define DEBUG(n, args...)
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: "
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 /*====================================================================*/
253 /* Module parameters */
255 MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver");
256 MODULE_LICENSE("Dual MPL/GPL");
258 #define INT_MODULE_PARM(n, v) static int n = v; MODULE_PARM(n, "i")
260 static int irq_list[4] = { -1 };
261 MODULE_PARM(irq_list, "1-4i");
262 INT_MODULE_PARM(irq_mask, 0xdeb8);
263 INT_MODULE_PARM(if_port, 0);
264 INT_MODULE_PARM(full_duplex, 0);
265 INT_MODULE_PARM(do_sound, 1);
266 INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */
268 /*====================================================================*/
270 /* We do not process more than these number of bytes during one
271 * interrupt. (Of course we receive complete packets, so this is not
273 * Something between 2000..22000; first value gives best interrupt latency,
274 * the second enables the usage of the complete on-chip buffer. We use the
275 * high value as the initial value.
277 static unsigned maxrx_bytes = 22000;
279 /* MII management prototypes */
280 static void mii_idle(ioaddr_t ioaddr);
281 static void mii_putbit(ioaddr_t ioaddr, unsigned data);
282 static int mii_getbit(ioaddr_t ioaddr);
283 static void mii_wbits(ioaddr_t ioaddr, unsigned data, int len);
284 static unsigned mii_rd(ioaddr_t ioaddr, u_char phyaddr, u_char phyreg);
285 static void mii_wr(ioaddr_t ioaddr, u_char phyaddr, u_char phyreg,
286 unsigned data, int len);
289 * The event() function is this driver's Card Services event handler.
290 * It will be called by Card Services when an appropriate card status
291 * event is received. The config() and release() entry points are
292 * used to configure or release a socket, in response to card insertion
293 * and ejection events. They are invoked from the event handler.
296 static int has_ce2_string(dev_link_t * link);
297 static void xirc2ps_config(dev_link_t * link);
298 static void xirc2ps_release(dev_link_t * link);
299 static int xirc2ps_event(event_t event, int priority,
300 event_callback_args_t * args);
303 * The attach() and detach() entry points are used to create and destroy
304 * "instances" of the driver, where each instance represents everything
305 * needed to manage one actual PCMCIA card.
308 static dev_link_t *xirc2ps_attach(void);
309 static void xirc2ps_detach(dev_link_t *);
312 * You'll also need to prototype all the functions that will actually
313 * be used to talk to your device. See 'pcmem_cs' for a good example
314 * of a fully self-sufficient driver; the other drivers rely more or
315 * less on other parts of the kernel.
318 static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id, struct pt_regs *regs);
321 * The dev_info variable is the "key" that is used to match up this
322 * device driver with appropriate cards, through the card configuration
326 static dev_info_t dev_info = "xirc2ps_cs";
329 * A linked list of "instances" of the device. Each actual
330 * PCMCIA card corresponds to one device instance, and is described
331 * by one dev_link_t structure (defined in ds.h).
333 * You may not want to use a linked list for this -- for example, the
334 * memory card driver uses an array of dev_link_t pointers, where minor
335 * device numbers are used to derive the corresponding array index.
338 static dev_link_t *dev_list;
341 * A dev_link_t structure has fields for most things that are needed
342 * to keep track of a socket, but there will usually be some device
343 * specific information that also needs to be kept track of. The
344 * 'priv' pointer in a dev_link_t structure can be used to point to
345 * a device-specific private data structure, like this.
347 * A driver needs to provide a dev_node_t structure for each device
348 * on a card. In some cases, there is only one device per card (for
349 * example, ethernet cards, modems). In other cases, there may be
350 * many actual or logical devices (SCSI adapters, memory cards with
351 * multiple partitions). The dev_node_t structures need to be kept
352 * in a linked list starting at the 'dev' field of a dev_link_t
353 * structure. We allocate them in the card's private data structure,
354 * because they generally can't be allocated dynamically.
357 typedef struct local_info_t {
360 struct net_device_stats stats;
363 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */
364 int mohawk; /* a CE3 type card */
365 int dingo; /* a CEM56 type card */
366 int new_mii; /* has full 10baseT/100baseT MII */
367 int modem; /* is a multi function card (i.e with a modem) */
368 caddr_t dingo_ccr; /* only used for CEM56 cards */
369 unsigned last_ptr_value; /* last packets transmitted value */
370 const char *manf_str;
374 * Some more prototypes
376 static int do_start_xmit(struct sk_buff *skb, struct net_device *dev);
377 static void do_tx_timeout(struct net_device *dev);
378 static struct net_device_stats *do_get_stats(struct net_device *dev);
379 static void set_addresses(struct net_device *dev);
380 static void set_multicast_list(struct net_device *dev);
381 static int set_card_type(dev_link_t *link, const void *s);
382 static int do_config(struct net_device *dev, struct ifmap *map);
383 static int do_open(struct net_device *dev);
384 static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
385 static struct ethtool_ops netdev_ethtool_ops;
386 static void hardreset(struct net_device *dev);
387 static void do_reset(struct net_device *dev, int full);
388 static int init_mii(struct net_device *dev);
389 static void do_powerdown(struct net_device *dev);
390 static int do_stop(struct net_device *dev);
392 /*=============== Helper functions =========================*/
394 first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
398 if ((err = pcmcia_get_first_tuple(handle, tuple)) == 0 &&
399 (err = pcmcia_get_tuple_data(handle, tuple)) == 0)
400 err = pcmcia_parse_tuple(handle, tuple, parse);
405 next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
409 if ((err = pcmcia_get_next_tuple(handle, tuple)) == 0 &&
410 (err = pcmcia_get_tuple_data(handle, tuple)) == 0)
411 err = pcmcia_parse_tuple(handle, tuple, parse);
415 #define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR)
416 #define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))
417 #define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))
418 #define PutByte(reg,value) outb((value), ioaddr+(reg))
419 #define PutWord(reg,value) outw((value), ioaddr+(reg))
421 #define Wait(n) do { \
422 set_current_state(TASK_UNINTERRUPTIBLE); \
423 schedule_timeout(n); \
426 /*====== Functions used for debugging =================================*/
427 #if defined(PCMCIA_DEBUG) && 0 /* reading regs may change system status */
429 PrintRegisters(struct net_device *dev)
431 ioaddr_t ioaddr = dev->base_addr;
436 printk(KDBG_XIRC "Register common: ");
437 for (i = 0; i < 8; i++)
438 printk(" %2.2x", GetByte(i));
440 for (page = 0; page <= 8; page++) {
441 printk(KDBG_XIRC "Register page %2x: ", page);
443 for (i = 8; i < 16; i++)
444 printk(" %2.2x", GetByte(i));
447 for (page=0x40 ; page <= 0x5f; page++) {
448 if (page == 0x43 || (page >= 0x46 && page <= 0x4f)
449 || (page >= 0x51 && page <=0x5e))
451 printk(KDBG_XIRC "Register page %2x: ", page);
453 for (i = 8; i < 16; i++)
454 printk(" %2.2x", GetByte(i));
459 #endif /* PCMCIA_DEBUG */
461 /*============== MII Management functions ===============*/
464 * Turn around for read
467 mii_idle(ioaddr_t ioaddr)
469 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */
471 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */
476 * Write a bit to MDI/O
479 mii_putbit(ioaddr_t ioaddr, unsigned data)
483 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */
485 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */
488 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */
490 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */
495 PutWord(XIRCREG2_GPR2-1, 0x0e0e);
497 PutWord(XIRCREG2_GPR2-1, 0x0f0f);
500 PutWord(XIRCREG2_GPR2-1, 0x0c0c);
502 PutWord(XIRCREG2_GPR2-1, 0x0d0d);
509 * Get a bit from MDI/O
512 mii_getbit(ioaddr_t ioaddr)
516 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */
518 d = GetByte(XIRCREG2_GPR2); /* read MDIO */
519 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */
521 return d & 0x20; /* read MDIO */
525 mii_wbits(ioaddr_t ioaddr, unsigned data, int len)
527 unsigned m = 1 << (len-1);
529 mii_putbit(ioaddr, data & m);
533 mii_rd(ioaddr_t ioaddr, u_char phyaddr, u_char phyreg)
539 for (i=0; i < 32; i++) /* 32 bit preamble */
540 mii_putbit(ioaddr, 1);
541 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */
542 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
543 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */
544 mii_idle(ioaddr); /* turn around */
547 for (m = 1<<15; m; m >>= 1)
548 if (mii_getbit(ioaddr))
555 mii_wr(ioaddr_t ioaddr, u_char phyaddr, u_char phyreg, unsigned data, int len)
560 for (i=0; i < 32; i++) /* 32 bit preamble */
561 mii_putbit(ioaddr, 1);
562 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */
563 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
564 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */
565 mii_putbit(ioaddr, 1); /* turn around */
566 mii_putbit(ioaddr, 0);
567 mii_wbits(ioaddr, data, len); /* And write the data */
571 /*============= Main bulk of functions =========================*/
574 * xirc2ps_attach() creates an "instance" of the driver, allocating
575 * local data structures for one device. The device is registered
576 * with Card Services.
578 * The dev_link structure is initialized, but we don't actually
579 * configure the card at this point -- we wait until we receive a
580 * card insertion event.
586 client_reg_t client_reg;
588 struct net_device *dev;
592 DEBUG(0, "attach()\n");
594 /* Allocate the device structure */
595 dev = alloc_etherdev(sizeof(local_info_t));
598 local = netdev_priv(dev);
602 /* General socket configuration */
603 link->conf.Attributes = CONF_ENABLE_IRQ;
605 link->conf.IntType = INT_MEMORY_AND_IO;
606 link->conf.ConfigIndex = 1;
607 link->conf.Present = PRESENT_OPTION;
608 link->irq.Handler = xirc2ps_interrupt;
609 link->irq.Instance = dev;
611 /* Fill in card specific entries */
612 SET_MODULE_OWNER(dev);
613 dev->hard_start_xmit = &do_start_xmit;
614 dev->set_config = &do_config;
615 dev->get_stats = &do_get_stats;
616 dev->do_ioctl = &do_ioctl;
617 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
618 dev->set_multicast_list = &set_multicast_list;
619 dev->open = &do_open;
620 dev->stop = &do_stop;
621 #ifdef HAVE_TX_TIMEOUT
622 dev->tx_timeout = do_tx_timeout;
623 dev->watchdog_timeo = TX_TIMEOUT;
626 /* Register with Card Services */
627 link->next = dev_list;
629 client_reg.dev_info = &dev_info;
630 client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
631 client_reg.EventMask =
632 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
633 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
634 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
635 client_reg.event_handler = &xirc2ps_event;
636 client_reg.Version = 0x0210;
637 client_reg.event_callback_args.client_data = link;
638 if ((err = pcmcia_register_client(&link->handle, &client_reg))) {
639 cs_error(link->handle, RegisterClient, err);
640 xirc2ps_detach(link);
645 } /* xirc2ps_attach */
648 * This deletes a driver "instance". The device is de-registered
649 * with Card Services. If it has been released, all local data
650 * structures are freed. Otherwise, the structures will be freed
651 * when the device is released.
655 xirc2ps_detach(dev_link_t * link)
657 struct net_device *dev = link->priv;
660 DEBUG(0, "detach(0x%p)\n", link);
662 /* Locate device structure */
663 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
667 DEBUG(0, "detach(0x%p): dev_link lost\n", link);
672 unregister_netdev(dev);
675 * If the device is currently configured and active, we won't
676 * actually delete it yet. Instead, it is marked so that when
677 * the release() function is called, that will trigger a proper
680 if (link->state & DEV_CONFIG)
681 xirc2ps_release(link);
683 /* Break the link with Card Services */
685 pcmcia_deregister_client(link->handle);
687 /* Unlink device structure, free it */
690 } /* xirc2ps_detach */
693 * Detect the type of the card. s is the buffer with the data of tuple 0x20
694 * Returns: 0 := not supported
695 * mediaid=11 and prodid=47
711 set_card_type(dev_link_t *link, const void *s)
713 struct net_device *dev = link->priv;
714 local_info_t *local = netdev_priv(dev);
716 unsigned cisrev = ((const unsigned char *)s)[2];
718 unsigned mediaid= ((const unsigned char *)s)[3];
719 unsigned prodid = ((const unsigned char *)s)[4];
721 DEBUG(0, "cisrev=%02x mediaid=%02x prodid=%02x\n",
722 cisrev, mediaid, prodid);
727 local->card_type = XIR_UNKNOWN;
728 if (!(prodid & 0x40)) {
729 printk(KNOT_XIRC "Ooops: Not a creditcard\n");
732 if (!(mediaid & 0x01)) {
733 printk(KNOT_XIRC "Not an Ethernet card\n");
736 if (mediaid & 0x10) {
738 switch(prodid & 15) {
739 case 1: local->card_type = XIR_CEM ; break;
740 case 2: local->card_type = XIR_CEM2 ; break;
741 case 3: local->card_type = XIR_CEM3 ; break;
742 case 4: local->card_type = XIR_CEM33 ; break;
743 case 5: local->card_type = XIR_CEM56M;
747 case 7: /* 7 is the RealPort 10/56 */
748 local->card_type = XIR_CEM56 ;
754 switch(prodid & 15) {
755 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
757 case 2: local->card_type = XIR_CE2; break;
758 case 3: local->card_type = XIR_CE3;
763 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
764 printk(KNOT_XIRC "Sorry, this is an old CE card\n");
767 if (local->card_type == XIR_UNKNOWN)
768 printk(KNOT_XIRC "unknown card (mediaid=%02x prodid=%02x)\n",
775 * There are some CE2 cards out which claim to be a CE card.
776 * This function looks for a "CE2" in the 3rd version field.
777 * Returns: true if this is a CE2
780 has_ce2_string(dev_link_t * link)
782 client_handle_t handle = link->handle;
787 tuple.Attributes = 0;
788 tuple.TupleData = buf;
789 tuple.TupleDataMax = 254;
790 tuple.TupleOffset = 0;
791 tuple.DesiredTuple = CISTPL_VERS_1;
792 if (!first_tuple(handle, &tuple, &parse) && parse.version_1.ns > 2) {
793 if (strstr(parse.version_1.str + parse.version_1.ofs[2], "CE2"))
800 * xirc2ps_config() is scheduled to run after a CARD_INSERTION event
801 * is received, to configure the PCMCIA socket, and to make the
802 * ethernet device available to the system.
805 xirc2ps_config(dev_link_t * link)
807 client_handle_t handle = link->handle;
808 struct net_device *dev = link->priv;
809 local_info_t *local = netdev_priv(dev);
815 cistpl_lan_node_id_t *node_id = (cistpl_lan_node_id_t*)parse.funce.data;
816 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
818 local->dingo_ccr = NULL;
820 DEBUG(0, "config(0x%p)\n", link);
823 * This reads the card's CONFIG tuple to find its configuration
826 tuple.Attributes = 0;
827 tuple.TupleData = buf;
828 tuple.TupleDataMax = 64;
829 tuple.TupleOffset = 0;
831 /* Is this a valid card */
832 tuple.DesiredTuple = CISTPL_MANFID;
833 if ((err=first_tuple(handle, &tuple, &parse))) {
834 printk(KNOT_XIRC "manfid not found in CIS\n");
838 switch(parse.manfid.manf) {
840 local->manf_str = "Xircom";
843 local->manf_str = "Accton";
847 local->manf_str = "Compaq";
850 local->manf_str = "Intel";
853 local->manf_str = "Toshiba";
856 printk(KNOT_XIRC "Unknown Card Manufacturer ID: 0x%04x\n",
857 (unsigned)parse.manfid.manf);
860 DEBUG(0, "found %s card\n", local->manf_str);
862 if (!set_card_type(link, buf)) {
863 printk(KNOT_XIRC "this card is not supported\n");
867 /* get configuration stuff */
868 tuple.DesiredTuple = CISTPL_CONFIG;
869 if ((err=first_tuple(handle, &tuple, &parse)))
871 link->conf.ConfigBase = parse.config.base;
872 link->conf.Present = parse.config.rmask[0];
874 /* get the ethernet address from the CIS */
875 tuple.DesiredTuple = CISTPL_FUNCE;
876 for (err = first_tuple(handle, &tuple, &parse); !err;
877 err = next_tuple(handle, &tuple, &parse)) {
878 /* Once I saw two CISTPL_FUNCE_LAN_NODE_ID entries:
879 * the first one with a length of zero the second correct -
880 * so I skip all entries with length 0 */
881 if (parse.funce.type == CISTPL_FUNCE_LAN_NODE_ID
882 && ((cistpl_lan_node_id_t *)parse.funce.data)->nb)
885 if (err) { /* not found: try to get the node-id from tuple 0x89 */
886 tuple.DesiredTuple = 0x89; /* data layout looks like tuple 0x22 */
887 if ((err = pcmcia_get_first_tuple(handle, &tuple)) == 0 &&
888 (err = pcmcia_get_tuple_data(handle, &tuple)) == 0) {
889 if (tuple.TupleDataLen == 8 && *buf == CISTPL_FUNCE_LAN_NODE_ID)
890 memcpy(&parse, buf, 8);
895 if (err) { /* another try (James Lehmer's CE2 version 4.1)*/
896 tuple.DesiredTuple = CISTPL_FUNCE;
897 for (err = first_tuple(handle, &tuple, &parse); !err;
898 err = next_tuple(handle, &tuple, &parse)) {
899 if (parse.funce.type == 0x02 && parse.funce.data[0] == 1
900 && parse.funce.data[1] == 6 && tuple.TupleDataLen == 13) {
902 memcpy(&parse, buf+1, 8);
908 printk(KNOT_XIRC "node-id not found in CIS\n");
911 node_id = (cistpl_lan_node_id_t *)parse.funce.data;
912 if (node_id->nb != 6) {
913 printk(KNOT_XIRC "malformed node-id in CIS\n");
916 for (i=0; i < 6; i++)
917 dev->dev_addr[i] = node_id->id[i];
920 link->state |= DEV_CONFIG;
922 link->io.IOAddrLines =10;
923 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
924 link->irq.Attributes = IRQ_HANDLE_PRESENT;
925 link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
926 if (irq_list[0] == -1)
927 link->irq.IRQInfo2 = irq_mask;
929 for (i = 0; i < 4; i++)
930 link->irq.IRQInfo2 |= 1 << irq_list[i];
936 link->conf.Attributes |= CONF_ENABLE_SPKR;
937 link->conf.Status |= CCSR_AUDIO_ENA;
939 link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED ;
940 link->io.NumPorts2 = 8;
941 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
943 /* Take the Modem IO port from the CIS and scan for a free
945 link->io.NumPorts1 = 16; /* no Mako stuff anymore */
946 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
947 for (err = first_tuple(handle, &tuple, &parse); !err;
948 err = next_tuple(handle, &tuple, &parse)) {
949 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8) {
950 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
951 link->conf.ConfigIndex = cf->index ;
952 link->io.BasePort2 = cf->io.win[0].base;
953 link->io.BasePort1 = ioaddr;
954 if (!(err=pcmcia_request_io(link->handle, &link->io)))
960 link->io.NumPorts1 = 18;
961 /* We do 2 passes here: The first one uses the regular mapping and
962 * the second tries again, thereby considering that the 32 ports are
963 * mirrored every 32 bytes. Actually we use a mirrored port for
964 * the Mako if (on the first pass) the COR bit 5 is set.
966 for (pass=0; pass < 2; pass++) {
967 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
968 for (err = first_tuple(handle, &tuple, &parse); !err;
969 err = next_tuple(handle, &tuple, &parse)){
970 if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8){
971 link->conf.ConfigIndex = cf->index ;
972 link->io.BasePort2 = cf->io.win[0].base;
973 link->io.BasePort1 = link->io.BasePort2
974 + (pass ? (cf->index & 0x20 ? -24:8)
975 : (cf->index & 0x20 ? 8:-24));
976 if (!(err=pcmcia_request_io(link->handle, &link->io)))
981 /* if special option:
982 * try to configure as Ethernet only.
985 printk(KNOT_XIRC "no ports available\n");
987 link->irq.Attributes |= IRQ_TYPE_EXCLUSIVE;
988 link->io.NumPorts1 = 16;
989 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
990 link->io.BasePort1 = ioaddr;
991 if (!(err=pcmcia_request_io(link->handle, &link->io)))
994 link->io.BasePort1 = 0; /* let CS decide */
995 if ((err=pcmcia_request_io(link->handle, &link->io))) {
996 cs_error(link->handle, RequestIO, err);
1005 * Now allocate an interrupt line. Note that this does not
1006 * actually assign a handler to the interrupt.
1008 if ((err=pcmcia_request_irq(link->handle, &link->irq))) {
1009 cs_error(link->handle, RequestIRQ, err);
1014 * This actually configures the PCMCIA socket -- setting up
1015 * the I/O windows and the interrupt mapping.
1017 if ((err=pcmcia_request_configuration(link->handle, &link->conf))) {
1018 cs_error(link->handle, RequestConfiguration, err);
1027 /* Reset the modem's BAR to the correct value
1028 * This is necessary because in the RequestConfiguration call,
1029 * the base address of the ethernet port (BasePort1) is written
1030 * to the BAR registers of the modem.
1032 reg.Action = CS_WRITE;
1033 reg.Offset = CISREG_IOBASE_0;
1034 reg.Value = link->io.BasePort2 & 0xff;
1035 if ((err = pcmcia_access_configuration_register(link->handle, ®))) {
1036 cs_error(link->handle, AccessConfigurationRegister, err);
1039 reg.Action = CS_WRITE;
1040 reg.Offset = CISREG_IOBASE_1;
1041 reg.Value = (link->io.BasePort2 >> 8) & 0xff;
1042 if ((err = pcmcia_access_configuration_register(link->handle, ®))) {
1043 cs_error(link->handle, AccessConfigurationRegister, err);
1047 /* There is no config entry for the Ethernet part which
1048 * is at 0x0800. So we allocate a window into the attribute
1049 * memory and write direct to the CIS registers
1051 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
1052 req.Base = req.Size = 0;
1053 req.AccessSpeed = 0;
1054 if ((err = pcmcia_request_window(&link->handle, &req, &link->win))) {
1055 cs_error(link->handle, RequestWindow, err);
1058 local->dingo_ccr = ioremap(req.Base,0x1000) + 0x0800;
1059 mem.CardOffset = 0x0;
1061 if ((err = pcmcia_map_mem_page(link->win, &mem))) {
1062 cs_error(link->handle, MapMemPage, err);
1066 /* Setup the CCRs; there are no infos in the CIS about the Ethernet
1069 writeb(0x47, local->dingo_ccr + CISREG_COR);
1070 ioaddr = link->io.BasePort1;
1071 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
1072 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
1077 printk(KERN_INFO "ECOR:");
1078 for (i=0; i < 7; i++) {
1079 tmp = readb(local->dingo_ccr + i*2);
1080 printk(" %02x", tmp);
1083 printk(KERN_INFO "DCOR:");
1084 for (i=0; i < 4; i++) {
1085 tmp = readb(local->dingo_ccr + 0x20 + i*2);
1086 printk(" %02x", tmp);
1089 printk(KERN_INFO "SCOR:");
1090 for (i=0; i < 10; i++) {
1091 tmp = readb(local->dingo_ccr + 0x40 + i*2);
1092 printk(" %02x", tmp);
1098 writeb(0x01, local->dingo_ccr + 0x20);
1099 writeb(0x0c, local->dingo_ccr + 0x22);
1100 writeb(0x00, local->dingo_ccr + 0x24);
1101 writeb(0x00, local->dingo_ccr + 0x26);
1102 writeb(0x00, local->dingo_ccr + 0x28);
1105 /* The if_port symbol can be set when the module is loaded */
1106 local->probe_port=0;
1108 local->probe_port = dev->if_port = 1;
1109 } else if ((if_port >= 1 && if_port <= 2) ||
1110 (local->mohawk && if_port==4))
1111 dev->if_port = if_port;
1113 printk(KNOT_XIRC "invalid if_port requested\n");
1115 /* we can now register the device with the net subsystem */
1116 dev->irq = link->irq.AssignedIRQ;
1117 dev->base_addr = link->io.BasePort1;
1120 do_reset(dev, 1); /* a kludge to make the cem56 work */
1122 link->dev = &local->node;
1123 link->state &= ~DEV_CONFIG_PENDING;
1125 if ((err=register_netdev(dev))) {
1126 printk(KNOT_XIRC "register_netdev() failed\n");
1131 strcpy(local->node.dev_name, dev->name);
1133 /* give some infos about the hardware */
1134 printk(KERN_INFO "%s: %s: port %#3lx, irq %d, hwaddr",
1135 dev->name, local->manf_str,(u_long)dev->base_addr, (int)dev->irq);
1136 for (i = 0; i < 6; i++)
1137 printk("%c%02X", i?':':' ', dev->dev_addr[i]);
1143 link->state &= ~DEV_CONFIG_PENDING;
1144 xirc2ps_release(link);
1148 printk(KNOT_XIRC "unable to parse CIS\n");
1150 link->state &= ~DEV_CONFIG_PENDING;
1151 } /* xirc2ps_config */
1154 * After a card is removed, xirc2ps_release() will unregister the net
1155 * device, and release the PCMCIA configuration. If the device is
1156 * still open, this will be postponed until it is closed.
1159 xirc2ps_release(dev_link_t *link)
1162 DEBUG(0, "release(0x%p)\n", link);
1165 struct net_device *dev = link->priv;
1166 local_info_t *local = netdev_priv(dev);
1168 iounmap(local->dingo_ccr - 0x0800);
1169 pcmcia_release_window(link->win);
1171 pcmcia_release_configuration(link->handle);
1172 pcmcia_release_io(link->handle, &link->io);
1173 pcmcia_release_irq(link->handle, &link->irq);
1174 link->state &= ~DEV_CONFIG;
1176 } /* xirc2ps_release */
1178 /*====================================================================*/
1181 * The card status event handler. Mostly, this schedules other
1182 * stuff to run after an event is received. A CARD_REMOVAL event
1183 * also sets some flags to discourage the net drivers from trying
1184 * to talk to the card any more.
1186 * When a CARD_REMOVAL event is received, we immediately set a flag
1187 * to block future accesses to this device. All the functions that
1188 * actually access the device should check this flag to make sure
1189 * the card is still present.
1193 xirc2ps_event(event_t event, int priority,
1194 event_callback_args_t * args)
1196 dev_link_t *link = args->client_data;
1197 struct net_device *dev = link->priv;
1199 DEBUG(0, "event(%d)\n", (int)event);
1202 case CS_EVENT_REGISTRATION_COMPLETE:
1203 DEBUG(0, "registration complete\n");
1205 case CS_EVENT_CARD_REMOVAL:
1206 link->state &= ~DEV_PRESENT;
1207 if (link->state & DEV_CONFIG)
1208 netif_device_detach(dev);
1210 case CS_EVENT_CARD_INSERTION:
1211 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
1212 xirc2ps_config(link);
1214 case CS_EVENT_PM_SUSPEND:
1215 link->state |= DEV_SUSPEND;
1216 /* Fall through... */
1217 case CS_EVENT_RESET_PHYSICAL:
1218 if (link->state & DEV_CONFIG) {
1220 netif_device_detach(dev);
1223 pcmcia_release_configuration(link->handle);
1226 case CS_EVENT_PM_RESUME:
1227 link->state &= ~DEV_SUSPEND;
1228 /* Fall through... */
1229 case CS_EVENT_CARD_RESET:
1230 if (link->state & DEV_CONFIG) {
1231 pcmcia_request_configuration(link->handle, &link->conf);
1234 netif_device_attach(dev);
1240 } /* xirc2ps_event */
1242 /*====================================================================*/
1245 * This is the Interrupt service route.
1248 xirc2ps_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1250 struct net_device *dev = (struct net_device *)dev_id;
1251 local_info_t *lp = netdev_priv(dev);
1254 unsigned bytes_rcvd;
1255 unsigned int_status, eth_status, rx_status, tx_status;
1256 unsigned rsr, pktlen;
1257 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
1258 * is this something to worry about?
1262 if (!netif_device_present(dev))
1265 ioaddr = dev->base_addr;
1266 if (lp->mohawk) { /* must disable the interrupt */
1267 PutByte(XIRCREG_CR, 0);
1270 DEBUG(6, "%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
1272 saved_page = GetByte(XIRCREG_PR);
1273 /* Read the ISR to see whats the cause for the interrupt.
1274 * This also clears the interrupt flags on CE2 cards
1276 int_status = GetByte(XIRCREG_ISR);
1279 if (int_status == 0xff) { /* card may be ejected */
1280 DEBUG(3, "%s: interrupt %d for dead card\n", dev->name, irq);
1283 eth_status = GetByte(XIRCREG_ESR);
1286 rx_status = GetByte(XIRCREG40_RXST0);
1287 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
1288 tx_status = GetByte(XIRCREG40_TXST0);
1289 tx_status |= GetByte(XIRCREG40_TXST1) << 8;
1290 PutByte(XIRCREG40_TXST0, 0);
1291 PutByte(XIRCREG40_TXST1, 0);
1293 DEBUG(3, "%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
1294 dev->name, int_status, eth_status, rx_status, tx_status);
1296 /***** receive section ******/
1298 while (eth_status & FullPktRcvd) {
1299 rsr = GetByte(XIRCREG0_RSR);
1300 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
1301 /* too many bytes received during this int, drop the rest of the
1303 lp->stats.rx_dropped++;
1304 DEBUG(2, "%s: RX drop, too much done\n", dev->name);
1305 } else if (rsr & PktRxOk) {
1306 struct sk_buff *skb;
1308 pktlen = GetWord(XIRCREG0_RBC);
1309 bytes_rcvd += pktlen;
1311 DEBUG(5, "rsr=%#02x packet_length=%u\n", rsr, pktlen);
1313 skb = dev_alloc_skb(pktlen+3); /* 1 extra so we can use insw */
1315 printk(KNOT_XIRC "low memory, packet dropped (size=%u)\n",
1317 lp->stats.rx_dropped++;
1318 } else { /* okay get the packet */
1319 skb_reserve(skb, 2);
1320 if (lp->silicon == 0 ) { /* work around a hardware bug */
1321 unsigned rhsa; /* receive start address */
1324 rhsa = GetWord(XIRCREG5_RHSA0);
1326 rhsa += 3; /* skip control infos */
1329 if (rhsa + pktlen > 0x8000) {
1331 u_char *buf = skb_put(skb, pktlen);
1332 for (i=0; i < pktlen ; i++, rhsa++) {
1333 buf[i] = GetByte(XIRCREG_EDP);
1334 if (rhsa == 0x8000) {
1340 insw(ioaddr+XIRCREG_EDP,
1341 skb_put(skb, pktlen), (pktlen+1)>>1);
1345 else if (lp->mohawk) {
1346 /* To use this 32 bit access we should use
1347 * a manual optimized loop
1348 * Also the words are swapped, we can get more
1349 * performance by using 32 bit access and swapping
1350 * the words in a register. Will need this for cardbus
1352 * Note: don't forget to change the ALLOC_SKB to .. +3
1355 u_long *p = skb_put(skb, pktlen);
1357 ioaddr_t edpreg = ioaddr+XIRCREG_EDP-2;
1358 for (i=0; i < len ; i += 4, p++) {
1360 __asm__("rorl $16,%0\n\t"
1368 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
1371 skb->protocol = eth_type_trans(skb, dev);
1374 dev->last_rx = jiffies;
1375 lp->stats.rx_packets++;
1376 lp->stats.rx_bytes += pktlen;
1377 if (!(rsr & PhyPkt))
1378 lp->stats.multicast++;
1380 } else { /* bad packet */
1381 DEBUG(5, "rsr=%#02x\n", rsr);
1383 if (rsr & PktTooLong) {
1384 lp->stats.rx_frame_errors++;
1385 DEBUG(3, "%s: Packet too long\n", dev->name);
1388 lp->stats.rx_crc_errors++;
1389 DEBUG(3, "%s: CRC error\n", dev->name);
1391 if (rsr & AlignErr) {
1392 lp->stats.rx_fifo_errors++; /* okay ? */
1393 DEBUG(3, "%s: Alignment error\n", dev->name);
1396 /* clear the received/dropped/error packet */
1397 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
1399 /* get the new ethernet status */
1400 eth_status = GetByte(XIRCREG_ESR);
1402 if (rx_status & 0x10) { /* Receive overrun */
1403 lp->stats.rx_over_errors++;
1404 PutByte(XIRCREG_CR, ClearRxOvrun);
1405 DEBUG(3, "receive overrun cleared\n");
1408 /***** transmit section ******/
1409 if (int_status & PktTxed) {
1412 n = lp->last_ptr_value;
1413 nn = GetByte(XIRCREG0_PTR);
1414 lp->last_ptr_value = nn;
1415 if (nn < n) /* rollover */
1416 lp->stats.tx_packets += 256 - n;
1417 else if (n == nn) { /* happens sometimes - don't know why */
1418 DEBUG(0, "PTR not changed?\n");
1420 lp->stats.tx_packets += lp->last_ptr_value - n;
1421 netif_wake_queue(dev);
1423 if (tx_status & 0x0002) { /* Execessive collissions */
1424 DEBUG(0, "tx restarted due to execssive collissions\n");
1425 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
1427 if (tx_status & 0x0040)
1428 lp->stats.tx_aborted_errors++;
1430 /* recalculate our work chunk so that we limit the duration of this
1431 * ISR to about 1/10 of a second.
1432 * Calculate only if we received a reasonable amount of bytes.
1434 if (bytes_rcvd > 1000) {
1435 u_long duration = jiffies - start_ticks;
1437 if (duration >= HZ/10) { /* if more than about 1/10 second */
1438 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
1439 if (maxrx_bytes < 2000)
1441 else if (maxrx_bytes > 22000)
1442 maxrx_bytes = 22000;
1443 DEBUG(1, "set maxrx=%u (rcvd=%u ticks=%lu)\n",
1444 maxrx_bytes, bytes_rcvd, duration);
1445 } else if (!duration && maxrx_bytes < 22000) {
1446 /* now much faster */
1447 maxrx_bytes += 2000;
1448 if (maxrx_bytes > 22000)
1449 maxrx_bytes = 22000;
1450 DEBUG(1, "set maxrx=%u\n", maxrx_bytes);
1456 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
1459 SelectPage(saved_page);
1460 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
1461 /* Instead of dropping packets during a receive, we could
1462 * force an interrupt with this command:
1463 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
1466 } /* xirc2ps_interrupt */
1468 /*====================================================================*/
1471 do_tx_timeout(struct net_device *dev)
1473 local_info_t *lp = netdev_priv(dev);
1474 printk(KERN_NOTICE "%s: transmit timed out\n", dev->name);
1475 lp->stats.tx_errors++;
1476 /* reset the card */
1478 dev->trans_start = jiffies;
1479 netif_wake_queue(dev);
1483 do_start_xmit(struct sk_buff *skb, struct net_device *dev)
1485 local_info_t *lp = netdev_priv(dev);
1486 ioaddr_t ioaddr = dev->base_addr;
1489 unsigned pktlen = skb? skb->len : 0;
1491 DEBUG(1, "do_start_xmit(skb=%p, dev=%p) len=%u\n",
1495 /* adjust the packet length to min. required
1496 * and hope that the buffer is large enough
1497 * to provide some random data.
1498 * fixme: For Mohawk we can change this by sending
1499 * a larger packetlen than we actually have; the chip will
1500 * pad this in his buffer with random bytes
1502 if (pktlen < ETH_ZLEN)
1504 skb = skb_padto(skb, ETH_ZLEN);
1510 netif_stop_queue(dev);
1512 PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
1513 freespace = GetWord(XIRCREG0_TSO);
1514 okay = freespace & 0x8000;
1515 freespace &= 0x7fff;
1516 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
1517 okay = pktlen +2 < freespace;
1518 DEBUG(2 + (okay ? 2 : 0), "%s: avail. tx space=%u%s\n",
1519 dev->name, freespace, okay ? " (okay)":" (not enough)");
1520 if (!okay) { /* not enough space */
1521 return 1; /* upper layer may decide to requeue this packet */
1523 /* send the packet */
1524 PutWord(XIRCREG_EDP, (u_short)pktlen);
1525 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
1527 PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
1530 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
1532 dev_kfree_skb (skb);
1533 dev->trans_start = jiffies;
1534 lp->stats.tx_bytes += pktlen;
1535 netif_start_queue(dev);
1539 static struct net_device_stats *
1540 do_get_stats(struct net_device *dev)
1542 local_info_t *lp = netdev_priv(dev);
1544 /* lp->stats.rx_missed_errors = GetByte(?) */
1549 * Set all addresses: This first one is the individual address,
1550 * the next 9 addresses are taken from the multicast list and
1551 * the rest is filled with the individual address.
1554 set_addresses(struct net_device *dev)
1556 ioaddr_t ioaddr = dev->base_addr;
1557 local_info_t *lp = netdev_priv(dev);
1558 struct dev_mc_list *dmi = dev->mc_list;
1563 for (i=0,j=8,n=0; ; i++, j++) {
1575 if (n && n <= dev->mc_count && dmi) {
1576 addr = dmi->dmi_addr;
1579 addr = dev->dev_addr;
1582 PutByte(j, addr[5-i]);
1584 PutByte(j, addr[i]);
1590 * Set or clear the multicast filter for this adaptor.
1591 * We can filter up to 9 addresses, if more are requested we set
1592 * multicast promiscuous mode.
1596 set_multicast_list(struct net_device *dev)
1598 ioaddr_t ioaddr = dev->base_addr;
1601 if (dev->flags & IFF_PROMISC) { /* snoop */
1602 PutByte(XIRCREG42_SWC1, 0x06); /* set MPE and PME */
1603 } else if (dev->mc_count > 9 || (dev->flags & IFF_ALLMULTI)) {
1604 PutByte(XIRCREG42_SWC1, 0x06); /* set MPE */
1605 } else if (dev->mc_count) {
1606 /* the chip can filter 9 addresses perfectly */
1607 PutByte(XIRCREG42_SWC1, 0x00);
1609 PutByte(XIRCREG40_CMD0, Offline);
1612 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1613 } else { /* standard usage */
1614 PutByte(XIRCREG42_SWC1, 0x00);
1620 do_config(struct net_device *dev, struct ifmap *map)
1622 local_info_t *local = netdev_priv(dev);
1624 DEBUG(0, "do_config(%p)\n", dev);
1625 if (map->port != 255 && map->port != dev->if_port) {
1629 local->probe_port = 1;
1632 local->probe_port = 0;
1633 dev->if_port = map->port;
1635 printk(KERN_INFO "%s: switching to %s port\n",
1636 dev->name, if_names[dev->if_port]);
1637 do_reset(dev,1); /* not the fine way :-) */
1646 do_open(struct net_device *dev)
1648 local_info_t *lp = netdev_priv(dev);
1649 dev_link_t *link = &lp->link;
1651 DEBUG(0, "do_open(%p)\n", dev);
1653 /* Check that the PCMCIA card is still here. */
1654 /* Physical device present signature. */
1661 netif_start_queue(dev);
1667 static void netdev_get_drvinfo(struct net_device *dev,
1668 struct ethtool_drvinfo *info)
1670 strcpy(info->driver, "xirc2ps_cs");
1671 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
1674 static struct ethtool_ops netdev_ethtool_ops = {
1675 .get_drvinfo = netdev_get_drvinfo,
1679 do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1681 local_info_t *local = netdev_priv(dev);
1682 ioaddr_t ioaddr = dev->base_addr;
1683 u16 *data = (u16 *)&rq->ifr_ifru;
1685 DEBUG(1, "%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
1686 dev->name, rq->ifr_ifrn.ifrn_name, cmd,
1687 data[0], data[1], data[2], data[3]);
1693 case SIOCGMIIPHY: /* Get the address of the PHY in use. */
1694 data[0] = 0; /* we have only this address */
1696 case SIOCGMIIREG: /* Read the specified MII register. */
1697 data[3] = mii_rd(ioaddr, data[0] & 0x1f, data[1] & 0x1f);
1699 case SIOCSMIIREG: /* Write the specified MII register */
1700 if (!capable(CAP_NET_ADMIN))
1702 mii_wr(ioaddr, data[0] & 0x1f, data[1] & 0x1f, data[2], 16);
1711 hardreset(struct net_device *dev)
1713 local_info_t *local = netdev_priv(dev);
1714 ioaddr_t ioaddr = dev->base_addr;
1718 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1719 Wait(HZ/25); /* wait 40 msec */
1721 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
1723 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
1724 Wait(HZ/50); /* wait 20 msec */
1728 do_reset(struct net_device *dev, int full)
1730 local_info_t *local = netdev_priv(dev);
1731 ioaddr_t ioaddr = dev->base_addr;
1734 DEBUG(0, "%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
1737 PutByte(XIRCREG_CR, SoftReset); /* set */
1738 Wait(HZ/50); /* wait 20 msec */
1739 PutByte(XIRCREG_CR, 0); /* clear */
1740 Wait(HZ/25); /* wait 40 msec */
1741 if (local->mohawk) {
1743 /* set pin GP1 and GP2 to output (0x0c)
1744 * set GP1 to low to power up the ML6692 (0x00)
1745 * set GP2 to high to power up the 10Mhz chip (0x02)
1747 PutByte(XIRCREG4_GPR0, 0x0e);
1750 /* give the circuits some time to power up */
1751 Wait(HZ/2); /* about 500ms */
1753 local->last_ptr_value = 0;
1754 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
1755 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
1757 if (local->probe_port) {
1758 if (!local->mohawk) {
1760 PutByte(XIRCREG4_GPR0, 4);
1761 local->probe_port = 0;
1763 } else if (dev->if_port == 2) { /* enable 10Base2 */
1765 PutByte(XIRCREG42_SWC1, 0xC0);
1766 } else { /* enable 10BaseT */
1768 PutByte(XIRCREG42_SWC1, 0x80);
1770 Wait(HZ/25); /* wait 40 msec to let it complete */
1775 value = GetByte(XIRCREG_ESR); /* read the ESR */
1776 printk(KERN_DEBUG "%s: ESR is: %#02x\n", dev->name, value);
1782 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
1783 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
1784 value = GetByte(XIRCREG1_ECR);
1787 value |= DisableLinkPulse;
1788 PutByte(XIRCREG1_ECR, value);
1790 DEBUG(0, "%s: ECR is: %#02x\n", dev->name, value);
1793 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
1795 if (local->silicon != 1) {
1796 /* set the local memory dividing line.
1797 * The comments in the sample code say that this is only
1798 * settable with the scipper version 2 which is revision 0.
1799 * Always for CE3 cards
1802 PutWord(XIRCREG2_RBS, 0x2000);
1808 /* Hardware workaround:
1809 * The receive byte pointer after reset is off by 1 so we need
1810 * to move the offset pointer back to 0.
1813 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
1815 /* setup MAC IMRs and clear status registers */
1816 SelectPage(0x40); /* Bit 7 ... bit 0 */
1817 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
1818 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1819 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
1820 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
1821 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
1822 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
1824 if (full && local->mohawk && init_mii(dev)) {
1825 if (dev->if_port == 4 || local->dingo || local->new_mii) {
1826 printk(KERN_INFO "%s: MII selected\n", dev->name);
1828 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
1831 printk(KERN_INFO "%s: MII detected; using 10mbs\n",
1834 if (dev->if_port == 2) /* enable 10Base2 */
1835 PutByte(XIRCREG42_SWC1, 0xC0);
1836 else /* enable 10BaseT */
1837 PutByte(XIRCREG42_SWC1, 0x80);
1838 Wait(HZ/25); /* wait 40 msec to let it complete */
1841 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
1842 } else { /* No MII */
1844 value = GetByte(XIRCREG_ESR); /* read the ESR */
1845 dev->if_port = (value & MediaSelect) ? 1 : 2;
1848 /* configure the LEDs */
1850 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
1851 PutByte(XIRCREG2_LED, 0x3b);
1852 else /* Coax: Not-Collision and Activity */
1853 PutByte(XIRCREG2_LED, 0x3a);
1856 PutByte(0x0b, 0x04); /* 100 Mbit LED */
1858 /* enable receiver and put the mac online */
1861 PutByte(XIRCREG40_CMD0, EnableRecv | Online);
1864 /* setup Ethernet IMR and enable interrupts */
1866 PutByte(XIRCREG1_IMR0, 0xff);
1869 PutByte(XIRCREG_CR, EnableIntr);
1870 if (local->modem && !local->dingo) { /* do some magic */
1871 if (!(GetByte(0x10) & 0x01))
1872 PutByte(0x10, 0x11); /* unmask master-int bit */
1876 printk(KERN_INFO "%s: media %s, silicon revision %d\n",
1877 dev->name, if_names[dev->if_port], local->silicon);
1878 /* We should switch back to page 0 to avoid a bug in revision 0
1879 * where regs with offset below 8 can't be read after an access
1880 * to the MAC registers */
1885 * Initialize the Media-Independent-Interface
1886 * Returns: True if we have a good MII
1889 init_mii(struct net_device *dev)
1891 local_info_t *local = netdev_priv(dev);
1892 ioaddr_t ioaddr = dev->base_addr;
1893 unsigned control, status, linkpartner;
1896 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
1897 dev->if_port = if_port;
1898 local->probe_port = 0;
1902 status = mii_rd(ioaddr, 0, 1);
1903 if ((status & 0xff00) != 0x7800)
1904 return 0; /* No MII */
1906 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
1908 if (local->probe_port)
1909 control = 0x1000; /* auto neg */
1910 else if (dev->if_port == 4)
1911 control = 0x2000; /* no auto neg, 100mbs mode */
1913 control = 0x0000; /* no auto neg, 10mbs mode */
1914 mii_wr(ioaddr, 0, 0, control, 16);
1916 control = mii_rd(ioaddr, 0, 0);
1918 if (control & 0x0400) {
1919 printk(KERN_NOTICE "%s can't take PHY out of isolation mode\n",
1921 local->probe_port = 0;
1925 if (local->probe_port) {
1926 /* according to the DP83840A specs the auto negotiation process
1927 * may take up to 3.5 sec, so we use this also for our ML6692
1928 * Fixme: Better to use a timer here!
1930 for (i=0; i < 35; i++) {
1931 Wait(HZ/10); /* wait 100 msec */
1932 status = mii_rd(ioaddr, 0, 1);
1933 if ((status & 0x0020) && (status & 0x0004))
1937 if (!(status & 0x0020)) {
1938 printk(KERN_INFO "%s: autonegotiation failed;"
1939 " using 10mbs\n", dev->name);
1940 if (!local->new_mii) {
1942 mii_wr(ioaddr, 0, 0, control, 16);
1945 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
1948 linkpartner = mii_rd(ioaddr, 0, 5);
1949 printk(KERN_INFO "%s: MII link partner: %04x\n",
1950 dev->name, linkpartner);
1951 if (linkpartner & 0x0080) {
1962 do_powerdown(struct net_device *dev)
1965 ioaddr_t ioaddr = dev->base_addr;
1967 DEBUG(0, "do_powerdown(%p)\n", dev);
1970 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
1975 do_stop(struct net_device *dev)
1977 ioaddr_t ioaddr = dev->base_addr;
1978 local_info_t *lp = netdev_priv(dev);
1979 dev_link_t *link = &lp->link;
1981 DEBUG(0, "do_stop(%p)\n", dev);
1986 netif_stop_queue(dev);
1989 PutByte(XIRCREG_CR, 0); /* disable interrupts */
1991 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
1993 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
2000 static struct pcmcia_driver xirc2ps_cs_driver = {
2001 .owner = THIS_MODULE,
2003 .name = "xirc2ps_cs",
2005 .attach = xirc2ps_attach,
2006 .detach = xirc2ps_detach,
2010 init_xirc2ps_cs(void)
2012 return pcmcia_register_driver(&xirc2ps_cs_driver);
2016 exit_xirc2ps_cs(void)
2018 pcmcia_unregister_driver(&xirc2ps_cs_driver);
2021 xirc2ps_detach(dev_list);
2024 module_init(init_xirc2ps_cs);
2025 module_exit(exit_xirc2ps_cs);
2028 static int __init setup_xirc2ps_cs(char *str)
2030 /* irq, irq_mask, if_port, full_duplex, do_sound, lockup_hack
2031 * [,irq2 [,irq3 [,irq4]]]
2033 int ints[10] = { -1 };
2035 str = get_options(str, 9, ints);
2037 #define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
2038 MAYBE_SET(irq_list[0], 1);
2039 MAYBE_SET(irq_mask, 2);
2040 MAYBE_SET(if_port, 3);
2041 MAYBE_SET(full_duplex, 4);
2042 MAYBE_SET(do_sound, 5);
2043 MAYBE_SET(lockup_hack, 6);
2044 MAYBE_SET(irq_list[1], 7);
2045 MAYBE_SET(irq_list[2], 8);
2046 MAYBE_SET(irq_list[3], 9);
2052 __setup("xirc2ps_cs=", setup_xirc2ps_cs);