1 /* ----------------------------------------------------------------------------
2 Linux PCMCIA ethernet adapter driver for the New Media Ethernet LAN.
3 nmclan_cs.c,v 0.16 1995/07/01 06:42:17 rpao Exp rpao
5 The Ethernet LAN uses the Advanced Micro Devices (AMD) Am79C940 Media
6 Access Controller for Ethernet (MACE). It is essentially the Am2150
7 PCMCIA Ethernet card contained in the Am2150 Demo Kit.
9 Written by Roger C. Pao <rpao@paonet.org>
10 Copyright 1995 Roger C. Pao
11 Linux 2.5 cleanups Copyright Red Hat 2003
13 This software may be used and distributed according to the terms of
14 the GNU General Public License.
16 Ported to Linux 1.3.* network driver environment by
17 Matti Aarnio <mea@utu.fi>
21 Am2150 Technical Reference Manual, Revision 1.0, August 17, 1993
22 Am79C940 (MACE) Data Sheet, 1994
23 Am79C90 (C-LANCE) Data Sheet, 1994
24 Linux PCMCIA Programmer's Guide v1.17
25 /usr/src/linux/net/inet/dev.c, Linux kernel 1.2.8
27 Eric Mears, New Media Corporation
28 Tom Pollard, New Media Corporation
29 Dean Siasoyco, New Media Corporation
30 Ken Lesniak, Silicon Graphics, Inc. <lesniak@boston.sgi.com>
31 Donald Becker <becker@scyld.com>
32 David Hinds <dahinds@users.sourceforge.net>
34 The Linux client driver is based on the 3c589_cs.c client driver by
37 The Linux network driver outline is based on the 3c589_cs.c driver,
38 the 8390.c driver, and the example skeleton.c kernel code, which are
41 The Am2150 network driver hardware interface code is based on the
42 OS/9000 driver for the New Media Ethernet LAN by Eric Mears.
44 Special thanks for testing and help in debugging this driver goes
47 -------------------------------------------------------------------------------
48 Driver Notes and Issues
49 -------------------------------------------------------------------------------
51 1. Developed on a Dell 320SLi
52 PCMCIA Card Services 2.6.2
53 Linux dell 1.2.10 #1 Thu Jun 29 20:23:41 PDT 1995 i386
55 2. rc.pcmcia may require loading pcmcia_core with io_speed=300:
56 'insmod pcmcia_core.o io_speed=300'.
57 This will avoid problems with fast systems which causes rx_framecnt
58 to return random values.
60 3. If hot extraction does not work for you, use 'ifconfig eth0 down'
63 4. There is a bad slow-down problem in this driver.
65 5. Future: Multicast processing. In the meantime, do _not_ compile your
66 kernel with multicast ip enabled.
68 -------------------------------------------------------------------------------
70 -------------------------------------------------------------------------------
72 * 2.5.75-ac1 2003/07/11 Alan Cox <alan@lxorguk.ukuu.org.uk>
73 * Fixed hang on card eject as we probe it
74 * Cleaned up to use new style locking.
76 * Revision 0.16 1995/07/01 06:42:17 rpao
77 * Bug fix: nmclan_reset() called CardServices incorrectly.
79 * Revision 0.15 1995/05/24 08:09:47 rpao
80 * Re-implement MULTI_TX dev->tbusy handling.
82 * Revision 0.14 1995/05/23 03:19:30 rpao
83 * Added, in nmclan_config(), "tuple.Attributes = 0;".
84 * Modified MACE ID check to ignore chip revision level.
85 * Avoid tx_free_frames race condition between _start_xmit and _interrupt.
87 * Revision 0.13 1995/05/18 05:56:34 rpao
89 * Bug fix: nmclan_reset did not enable TX and RX: call restore_multicast_list.
90 * Bug fix: mace_interrupt checks ~MACE_IMR_DEFAULT. Fixes driver lockup.
92 * Revision 0.12 1995/05/14 00:12:23 rpao
93 * Statistics overhaul.
97 Bug fix: MACE statistics counters used wrong I/O ports.
98 Bug fix: mace_interrupt() needed to allow statistics to be
99 processed without RX or TX interrupts pending.
101 Multiple transmit request processing.
102 Modified statistics to use MACE counters where possible.
103 95/05/10 rpao V0.09 Bug fix: Must use IO_DATA_PATH_WIDTH_AUTO.
106 Bug fix: Make all non-exported functions private by using
108 Bug fix: Test IntrCnt _before_ reading MACE_IR.
109 95/05/10 rpao V0.07 Statistics.
110 95/05/09 rpao V0.06 Fix rx_framecnt problem by addition of PCIC wait states.
112 ---------------------------------------------------------------------------- */
114 #define DRV_NAME "nmclan_cs"
115 #define DRV_VERSION "0.16"
118 /* ----------------------------------------------------------------------------
119 Conditional Compilation Options
120 ---------------------------------------------------------------------------- */
123 #define RESET_ON_TIMEOUT 1
124 #define TX_INTERRUPTABLE 1
125 #define RESET_XILINX 0
127 /* ----------------------------------------------------------------------------
129 ---------------------------------------------------------------------------- */
131 #include <linux/module.h>
132 #include <linux/kernel.h>
133 #include <linux/init.h>
134 #include <linux/ptrace.h>
135 #include <linux/slab.h>
136 #include <linux/string.h>
137 #include <linux/timer.h>
138 #include <linux/interrupt.h>
139 #include <linux/in.h>
140 #include <linux/delay.h>
141 #include <linux/ethtool.h>
142 #include <linux/netdevice.h>
143 #include <linux/etherdevice.h>
144 #include <linux/skbuff.h>
145 #include <linux/if_arp.h>
146 #include <linux/ioport.h>
147 #include <linux/bitops.h>
149 #include <pcmcia/cs_types.h>
150 #include <pcmcia/cs.h>
151 #include <pcmcia/cisreg.h>
152 #include <pcmcia/cistpl.h>
153 #include <pcmcia/ds.h>
155 #include <asm/uaccess.h>
157 #include <asm/system.h>
159 /* ----------------------------------------------------------------------------
161 ---------------------------------------------------------------------------- */
163 #define ETHER_ADDR_LEN ETH_ALEN
164 /* 6 bytes in an Ethernet Address */
165 #define MACE_LADRF_LEN 8
166 /* 8 bytes in Logical Address Filter */
168 /* Loop Control Defines */
169 #define MACE_MAX_IR_ITERATIONS 10
170 #define MACE_MAX_RX_ITERATIONS 12
172 TBD: Dean brought this up, and I assumed the hardware would
175 If MACE_MAX_RX_ITERATIONS is > 1, rx_framecnt may still be
176 non-zero when the isr exits. We may not get another interrupt
177 to process the remaining packets for some time.
181 The Am2150 has a Xilinx XC3042 field programmable gate array (FPGA)
182 which manages the interface between the MACE and the PCMCIA bus. It
183 also includes buffer management for the 32K x 8 SRAM to control up to
184 four transmit and 12 receive frames at a time.
186 #define AM2150_MAX_TX_FRAMES 4
187 #define AM2150_MAX_RX_FRAMES 12
189 /* Am2150 Ethernet Card I/O Mapping */
190 #define AM2150_RCV 0x00
191 #define AM2150_XMT 0x04
192 #define AM2150_XMT_SKIP 0x09
193 #define AM2150_RCV_NEXT 0x0A
194 #define AM2150_RCV_FRAME_COUNT 0x0B
195 #define AM2150_MACE_BANK 0x0C
196 #define AM2150_MACE_BASE 0x10
199 #define MACE_RCVFIFO 0
200 #define MACE_XMTFIFO 1
206 #define MACE_FIFOFC 7
210 #define MACE_BIUCC 11
211 #define MACE_FIFOCC 12
212 #define MACE_MACCC 13
213 #define MACE_PLSCC 14
214 #define MACE_PHYCC 15
215 #define MACE_CHIPIDL 16
216 #define MACE_CHIPIDH 17
219 #define MACE_LADRF 20
225 #define MACE_RNTPC 26
226 #define MACE_RCVCC 27
233 #define MACE_XMTRC_EXDEF 0x80
234 #define MACE_XMTRC_XMTRC 0x0F
236 #define MACE_XMTFS_XMTSV 0x80
237 #define MACE_XMTFS_UFLO 0x40
238 #define MACE_XMTFS_LCOL 0x20
239 #define MACE_XMTFS_MORE 0x10
240 #define MACE_XMTFS_ONE 0x08
241 #define MACE_XMTFS_DEFER 0x04
242 #define MACE_XMTFS_LCAR 0x02
243 #define MACE_XMTFS_RTRY 0x01
245 #define MACE_RCVFS_RCVSTS 0xF000
246 #define MACE_RCVFS_OFLO 0x8000
247 #define MACE_RCVFS_CLSN 0x4000
248 #define MACE_RCVFS_FRAM 0x2000
249 #define MACE_RCVFS_FCS 0x1000
251 #define MACE_FIFOFC_RCVFC 0xF0
252 #define MACE_FIFOFC_XMTFC 0x0F
254 #define MACE_IR_JAB 0x80
255 #define MACE_IR_BABL 0x40
256 #define MACE_IR_CERR 0x20
257 #define MACE_IR_RCVCCO 0x10
258 #define MACE_IR_RNTPCO 0x08
259 #define MACE_IR_MPCO 0x04
260 #define MACE_IR_RCVINT 0x02
261 #define MACE_IR_XMTINT 0x01
263 #define MACE_MACCC_PROM 0x80
264 #define MACE_MACCC_DXMT2PD 0x40
265 #define MACE_MACCC_EMBA 0x20
266 #define MACE_MACCC_RESERVED 0x10
267 #define MACE_MACCC_DRCVPA 0x08
268 #define MACE_MACCC_DRCVBC 0x04
269 #define MACE_MACCC_ENXMT 0x02
270 #define MACE_MACCC_ENRCV 0x01
272 #define MACE_PHYCC_LNKFL 0x80
273 #define MACE_PHYCC_DLNKTST 0x40
274 #define MACE_PHYCC_REVPOL 0x20
275 #define MACE_PHYCC_DAPC 0x10
276 #define MACE_PHYCC_LRT 0x08
277 #define MACE_PHYCC_ASEL 0x04
278 #define MACE_PHYCC_RWAKE 0x02
279 #define MACE_PHYCC_AWAKE 0x01
281 #define MACE_IAC_ADDRCHG 0x80
282 #define MACE_IAC_PHYADDR 0x04
283 #define MACE_IAC_LOGADDR 0x02
285 #define MACE_UTR_RTRE 0x80
286 #define MACE_UTR_RTRD 0x40
287 #define MACE_UTR_RPA 0x20
288 #define MACE_UTR_FCOLL 0x10
289 #define MACE_UTR_RCVFCSE 0x08
290 #define MACE_UTR_LOOP_INCL_MENDEC 0x06
291 #define MACE_UTR_LOOP_NO_MENDEC 0x04
292 #define MACE_UTR_LOOP_EXTERNAL 0x02
293 #define MACE_UTR_LOOP_NONE 0x00
294 #define MACE_UTR_RESERVED 0x01
296 /* Switch MACE register bank (only 0 and 1 are valid) */
297 #define MACEBANK(win_num) outb((win_num), ioaddr + AM2150_MACE_BANK)
299 #define MACE_IMR_DEFAULT \
310 #undef MACE_IMR_DEFAULT
311 #define MACE_IMR_DEFAULT 0x00 /* New statistics handling: grab everything */
313 #define TX_TIMEOUT ((400*HZ)/1000)
315 /* ----------------------------------------------------------------------------
317 ---------------------------------------------------------------------------- */
319 typedef struct _mace_statistics {
334 /* RFS1--Receive Status (RCVSTS) */
340 /* RFS2--Runt Packet Count (RNTPC) */
343 /* RFS3--Receive Collision Count (RCVCC) */
364 typedef struct _mace_private {
365 struct pcmcia_device *p_dev;
367 struct net_device_stats linux_stats; /* Linux statistics counters */
368 mace_statistics mace_stats; /* MACE chip statistics counters */
370 /* restore_multicast_list() state variables */
371 int multicast_ladrf[MACE_LADRF_LEN]; /* Logical address filter */
372 int multicast_num_addrs;
374 char tx_free_frames; /* Number of free transmit frame buffers */
375 char tx_irq_disabled; /* MACE TX interrupt disabled */
377 spinlock_t bank_lock; /* Must be held if you step off bank 0 */
380 /* ----------------------------------------------------------------------------
381 Private Global Variables
382 ---------------------------------------------------------------------------- */
385 static char rcsid[] =
386 "nmclan_cs.c,v 0.16 1995/07/01 06:42:17 rpao Exp rpao";
387 static char *version =
388 DRV_NAME " " DRV_VERSION " (Roger C. Pao)";
391 static const char *if_names[]={
392 "Auto", "10baseT", "BNC",
395 /* ----------------------------------------------------------------------------
397 These are the parameters that can be set during loading with
399 ---------------------------------------------------------------------------- */
401 MODULE_DESCRIPTION("New Media PCMCIA ethernet driver");
402 MODULE_LICENSE("GPL");
404 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
406 /* 0=auto, 1=10baseT, 2 = 10base2, default=auto */
407 INT_MODULE_PARM(if_port, 0);
410 INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
411 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
413 #define DEBUG(n, args...)
416 /* ----------------------------------------------------------------------------
418 ---------------------------------------------------------------------------- */
420 static int nmclan_config(struct pcmcia_device *link);
421 static void nmclan_release(struct pcmcia_device *link);
423 static void nmclan_reset(struct net_device *dev);
424 static int mace_config(struct net_device *dev, struct ifmap *map);
425 static int mace_open(struct net_device *dev);
426 static int mace_close(struct net_device *dev);
427 static int mace_start_xmit(struct sk_buff *skb, struct net_device *dev);
428 static void mace_tx_timeout(struct net_device *dev);
429 static irqreturn_t mace_interrupt(int irq, void *dev_id);
430 static struct net_device_stats *mace_get_stats(struct net_device *dev);
431 static int mace_rx(struct net_device *dev, unsigned char RxCnt);
432 static void restore_multicast_list(struct net_device *dev);
433 static void set_multicast_list(struct net_device *dev);
434 static const struct ethtool_ops netdev_ethtool_ops;
437 static void nmclan_detach(struct pcmcia_device *p_dev);
439 /* ----------------------------------------------------------------------------
441 Creates an "instance" of the driver, allocating local data
442 structures for one device. The device is registered with Card
444 ---------------------------------------------------------------------------- */
446 static int nmclan_probe(struct pcmcia_device *link)
449 struct net_device *dev;
451 DEBUG(0, "nmclan_attach()\n");
452 DEBUG(1, "%s\n", rcsid);
454 /* Create new ethernet device */
455 dev = alloc_etherdev(sizeof(mace_private));
458 lp = netdev_priv(dev);
462 spin_lock_init(&lp->bank_lock);
463 link->io.NumPorts1 = 32;
464 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
465 link->io.IOAddrLines = 5;
466 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
467 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
468 link->irq.Handler = &mace_interrupt;
469 link->irq.Instance = dev;
470 link->conf.Attributes = CONF_ENABLE_IRQ;
471 link->conf.IntType = INT_MEMORY_AND_IO;
472 link->conf.ConfigIndex = 1;
473 link->conf.Present = PRESENT_OPTION;
475 lp->tx_free_frames=AM2150_MAX_TX_FRAMES;
477 dev->hard_start_xmit = &mace_start_xmit;
478 dev->set_config = &mace_config;
479 dev->get_stats = &mace_get_stats;
480 dev->set_multicast_list = &set_multicast_list;
481 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
482 dev->open = &mace_open;
483 dev->stop = &mace_close;
484 #ifdef HAVE_TX_TIMEOUT
485 dev->tx_timeout = mace_tx_timeout;
486 dev->watchdog_timeo = TX_TIMEOUT;
489 return nmclan_config(link);
490 } /* nmclan_attach */
492 /* ----------------------------------------------------------------------------
494 This deletes a driver "instance". The device is de-registered
495 with Card Services. If it has been released, all local data
496 structures are freed. Otherwise, the structures will be freed
497 when the device is released.
498 ---------------------------------------------------------------------------- */
500 static void nmclan_detach(struct pcmcia_device *link)
502 struct net_device *dev = link->priv;
504 DEBUG(0, "nmclan_detach(0x%p)\n", link);
507 unregister_netdev(dev);
509 nmclan_release(link);
512 } /* nmclan_detach */
514 /* ----------------------------------------------------------------------------
516 Reads a MACE register. This is bank independent; however, the
517 caller must ensure that this call is not interruptable. We are
518 assuming that during normal operation, the MACE is always in
520 ---------------------------------------------------------------------------- */
521 static int mace_read(mace_private *lp, unsigned int ioaddr, int reg)
527 case 0: /* register 0-15 */
528 data = inb(ioaddr + AM2150_MACE_BASE + reg);
530 case 1: /* register 16-31 */
531 spin_lock_irqsave(&lp->bank_lock, flags);
533 data = inb(ioaddr + AM2150_MACE_BASE + (reg & 0x0F));
535 spin_unlock_irqrestore(&lp->bank_lock, flags);
538 return (data & 0xFF);
541 /* ----------------------------------------------------------------------------
543 Writes to a MACE register. This is bank independent; however,
544 the caller must ensure that this call is not interruptable. We
545 are assuming that during normal operation, the MACE is always in
547 ---------------------------------------------------------------------------- */
548 static void mace_write(mace_private *lp, unsigned int ioaddr, int reg,
554 case 0: /* register 0-15 */
555 outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + reg);
557 case 1: /* register 16-31 */
558 spin_lock_irqsave(&lp->bank_lock, flags);
560 outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + (reg & 0x0F));
562 spin_unlock_irqrestore(&lp->bank_lock, flags);
567 /* ----------------------------------------------------------------------------
569 Resets the MACE chip.
570 ---------------------------------------------------------------------------- */
571 static int mace_init(mace_private *lp, unsigned int ioaddr, char *enet_addr)
576 /* MACE Software reset */
577 mace_write(lp, ioaddr, MACE_BIUCC, 1);
578 while (mace_read(lp, ioaddr, MACE_BIUCC) & 0x01) {
579 /* Wait for reset bit to be cleared automatically after <= 200ns */;
582 printk(KERN_ERR "mace: reset failed, card removed ?\n");
587 mace_write(lp, ioaddr, MACE_BIUCC, 0);
589 /* The Am2150 requires that the MACE FIFOs operate in burst mode. */
590 mace_write(lp, ioaddr, MACE_FIFOCC, 0x0F);
592 mace_write(lp,ioaddr, MACE_RCVFC, 0); /* Disable Auto Strip Receive */
593 mace_write(lp, ioaddr, MACE_IMR, 0xFF); /* Disable all interrupts until _open */
596 * Bit 2-1 PORTSEL[1-0] Port Select.
599 * 10 DAI Port (reserved in Am2150)
601 * For this card, only the first two are valid.
602 * So, PLSCC should be set to
605 * Or just set ASEL in PHYCC below!
609 mace_write(lp, ioaddr, MACE_PLSCC, 0x02);
612 mace_write(lp, ioaddr, MACE_PLSCC, 0x00);
615 mace_write(lp, ioaddr, MACE_PHYCC, /* ASEL */ 4);
616 /* ASEL Auto Select. When set, the PORTSEL[1-0] bits are overridden,
617 and the MACE device will automatically select the operating media
622 mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_PHYADDR);
623 /* Poll ADDRCHG bit */
625 while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG)
629 printk(KERN_ERR "mace: ADDRCHG timeout, card removed ?\n");
633 /* Set PADR register */
634 for (i = 0; i < ETHER_ADDR_LEN; i++)
635 mace_write(lp, ioaddr, MACE_PADR, enet_addr[i]);
637 /* MAC Configuration Control Register should be written last */
638 /* Let set_multicast_list set this. */
639 /* mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); */
640 mace_write(lp, ioaddr, MACE_MACCC, 0x00);
644 /* ----------------------------------------------------------------------------
646 This routine is scheduled to run after a CARD_INSERTION event
647 is received, to configure the PCMCIA socket, and to make the
648 ethernet device available to the system.
649 ---------------------------------------------------------------------------- */
651 #define CS_CHECK(fn, ret) \
652 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
654 static int nmclan_config(struct pcmcia_device *link)
656 struct net_device *dev = link->priv;
657 mace_private *lp = netdev_priv(dev);
660 int i, last_ret, last_fn;
662 DECLARE_MAC_BUF(mac);
664 DEBUG(0, "nmclan_config(0x%p)\n", link);
666 CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));
667 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
668 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
669 dev->irq = link->irq.AssignedIRQ;
670 dev->base_addr = link->io.BasePort1;
672 ioaddr = dev->base_addr;
674 /* Read the ethernet address from the CIS. */
675 tuple.DesiredTuple = 0x80 /* CISTPL_CFTABLE_ENTRY_MISC */;
676 tuple.TupleData = buf;
677 tuple.TupleDataMax = 64;
678 tuple.TupleOffset = 0;
679 tuple.Attributes = 0;
680 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
681 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
682 memcpy(dev->dev_addr, tuple.TupleData, ETHER_ADDR_LEN);
684 /* Verify configuration by reading the MACE ID. */
688 sig[0] = mace_read(lp, ioaddr, MACE_CHIPIDL);
689 sig[1] = mace_read(lp, ioaddr, MACE_CHIPIDH);
690 if ((sig[0] == 0x40) && ((sig[1] & 0x0F) == 0x09)) {
691 DEBUG(0, "nmclan_cs configured: mace id=%x %x\n",
694 printk(KERN_NOTICE "nmclan_cs: mace id not found: %x %x should"
695 " be 0x40 0x?9\n", sig[0], sig[1]);
700 if(mace_init(lp, ioaddr, dev->dev_addr) == -1)
703 /* The if_port symbol can be set when the module is loaded */
705 dev->if_port = if_port;
707 printk(KERN_NOTICE "nmclan_cs: invalid if_port requested\n");
709 link->dev_node = &lp->node;
710 SET_NETDEV_DEV(dev, &handle_to_dev(link));
712 i = register_netdev(dev);
714 printk(KERN_NOTICE "nmclan_cs: register_netdev() failed\n");
715 link->dev_node = NULL;
719 strcpy(lp->node.dev_name, dev->name);
721 printk(KERN_INFO "%s: nmclan: port %#3lx, irq %d, %s port,"
723 dev->name, dev->base_addr, dev->irq, if_names[dev->if_port],
724 print_mac(mac, dev->dev_addr));
728 cs_error(link, last_fn, last_ret);
730 nmclan_release(link);
732 } /* nmclan_config */
734 /* ----------------------------------------------------------------------------
736 After a card is removed, nmclan_release() will unregister the
737 net device, and release the PCMCIA configuration. If the device
738 is still open, this will be postponed until it is closed.
739 ---------------------------------------------------------------------------- */
740 static void nmclan_release(struct pcmcia_device *link)
742 DEBUG(0, "nmclan_release(0x%p)\n", link);
743 pcmcia_disable_device(link);
746 static int nmclan_suspend(struct pcmcia_device *link)
748 struct net_device *dev = link->priv;
751 netif_device_detach(dev);
756 static int nmclan_resume(struct pcmcia_device *link)
758 struct net_device *dev = link->priv;
762 netif_device_attach(dev);
769 /* ----------------------------------------------------------------------------
771 Reset and restore all of the Xilinx and MACE registers.
772 ---------------------------------------------------------------------------- */
773 static void nmclan_reset(struct net_device *dev)
775 mace_private *lp = netdev_priv(dev);
778 struct pcmcia_device *link = &lp->link;
782 /* Save original COR value */
784 reg.Action = CS_READ;
785 reg.Offset = CISREG_COR;
787 pcmcia_access_configuration_register(link, ®);
788 OrigCorValue = reg.Value;
791 reg.Action = CS_WRITE;
792 reg.Offset = CISREG_COR;
793 DEBUG(1, "nmclan_reset: OrigCorValue=0x%lX, resetting...\n",
795 reg.Value = COR_SOFT_RESET;
796 pcmcia_access_configuration_register(link, ®);
797 /* Need to wait for 20 ms for PCMCIA to finish reset. */
799 /* Restore original COR configuration index */
800 reg.Value = COR_LEVEL_REQ | (OrigCorValue & COR_CONFIG_MASK);
801 pcmcia_access_configuration_register(link, ®);
802 /* Xilinx is now completely reset along with the MACE chip. */
803 lp->tx_free_frames=AM2150_MAX_TX_FRAMES;
805 #endif /* #if RESET_XILINX */
807 /* Xilinx is now completely reset along with the MACE chip. */
808 lp->tx_free_frames=AM2150_MAX_TX_FRAMES;
810 /* Reinitialize the MACE chip for operation. */
811 mace_init(lp, dev->base_addr, dev->dev_addr);
812 mace_write(lp, dev->base_addr, MACE_IMR, MACE_IMR_DEFAULT);
814 /* Restore the multicast list and enable TX and RX. */
815 restore_multicast_list(dev);
818 /* ----------------------------------------------------------------------------
820 [Someone tell me what this is supposed to do? Is if_port a defined
821 standard? If so, there should be defines to indicate 1=10Base-T,
822 2=10Base-2, etc. including limited automatic detection.]
823 ---------------------------------------------------------------------------- */
824 static int mace_config(struct net_device *dev, struct ifmap *map)
826 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
827 if (map->port <= 2) {
828 dev->if_port = map->port;
829 printk(KERN_INFO "%s: switched to %s port\n", dev->name,
830 if_names[dev->if_port]);
837 /* ----------------------------------------------------------------------------
840 ---------------------------------------------------------------------------- */
841 static int mace_open(struct net_device *dev)
843 unsigned int ioaddr = dev->base_addr;
844 mace_private *lp = netdev_priv(dev);
845 struct pcmcia_device *link = lp->p_dev;
847 if (!pcmcia_dev_present(link))
854 netif_start_queue(dev);
857 return 0; /* Always succeed */
860 /* ----------------------------------------------------------------------------
862 Closes device driver.
863 ---------------------------------------------------------------------------- */
864 static int mace_close(struct net_device *dev)
866 unsigned int ioaddr = dev->base_addr;
867 mace_private *lp = netdev_priv(dev);
868 struct pcmcia_device *link = lp->p_dev;
870 DEBUG(2, "%s: shutting down ethercard.\n", dev->name);
872 /* Mask off all interrupts from the MACE chip. */
873 outb(0xFF, ioaddr + AM2150_MACE_BASE + MACE_IMR);
876 netif_stop_queue(dev);
881 static void netdev_get_drvinfo(struct net_device *dev,
882 struct ethtool_drvinfo *info)
884 strcpy(info->driver, DRV_NAME);
885 strcpy(info->version, DRV_VERSION);
886 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
890 static u32 netdev_get_msglevel(struct net_device *dev)
895 static void netdev_set_msglevel(struct net_device *dev, u32 level)
899 #endif /* PCMCIA_DEBUG */
901 static const struct ethtool_ops netdev_ethtool_ops = {
902 .get_drvinfo = netdev_get_drvinfo,
904 .get_msglevel = netdev_get_msglevel,
905 .set_msglevel = netdev_set_msglevel,
906 #endif /* PCMCIA_DEBUG */
909 /* ----------------------------------------------------------------------------
911 This routine begins the packet transmit function. When completed,
912 it will generate a transmit interrupt.
914 According to /usr/src/linux/net/inet/dev.c, if _start_xmit
915 returns 0, the "packet is now solely the responsibility of the
916 driver." If _start_xmit returns non-zero, the "transmission
917 failed, put skb back into a list."
918 ---------------------------------------------------------------------------- */
920 static void mace_tx_timeout(struct net_device *dev)
922 mace_private *lp = netdev_priv(dev);
923 struct pcmcia_device *link = lp->p_dev;
925 printk(KERN_NOTICE "%s: transmit timed out -- ", dev->name);
927 printk("resetting card\n");
928 pcmcia_reset_card(link->socket);
929 #else /* #if RESET_ON_TIMEOUT */
930 printk("NOT resetting card\n");
931 #endif /* #if RESET_ON_TIMEOUT */
932 dev->trans_start = jiffies;
933 netif_wake_queue(dev);
936 static int mace_start_xmit(struct sk_buff *skb, struct net_device *dev)
938 mace_private *lp = netdev_priv(dev);
939 unsigned int ioaddr = dev->base_addr;
941 netif_stop_queue(dev);
943 DEBUG(3, "%s: mace_start_xmit(length = %ld) called.\n",
944 dev->name, (long)skb->len);
946 #if (!TX_INTERRUPTABLE)
947 /* Disable MACE TX interrupts. */
948 outb(MACE_IMR_DEFAULT | MACE_IR_XMTINT,
949 ioaddr + AM2150_MACE_BASE + MACE_IMR);
950 lp->tx_irq_disabled=1;
951 #endif /* #if (!TX_INTERRUPTABLE) */
954 /* This block must not be interrupted by another transmit request!
955 mace_tx_timeout will take care of timer-based retransmissions from
956 the upper layers. The interrupt handler is guaranteed never to
957 service a transmit interrupt while we are in here.
960 lp->linux_stats.tx_bytes += skb->len;
961 lp->tx_free_frames--;
963 /* WARNING: Write the _exact_ number of bytes written in the header! */
964 /* Put out the word header [must be an outw()] . . . */
965 outw(skb->len, ioaddr + AM2150_XMT);
966 /* . . . and the packet [may be any combination of outw() and outb()] */
967 outsw(ioaddr + AM2150_XMT, skb->data, skb->len >> 1);
969 /* Odd byte transfer */
970 outb(skb->data[skb->len-1], ioaddr + AM2150_XMT);
973 dev->trans_start = jiffies;
976 if (lp->tx_free_frames > 0)
977 netif_start_queue(dev);
978 #endif /* #if MULTI_TX */
981 #if (!TX_INTERRUPTABLE)
982 /* Re-enable MACE TX interrupts. */
983 lp->tx_irq_disabled=0;
984 outb(MACE_IMR_DEFAULT, ioaddr + AM2150_MACE_BASE + MACE_IMR);
985 #endif /* #if (!TX_INTERRUPTABLE) */
990 } /* mace_start_xmit */
992 /* ----------------------------------------------------------------------------
994 The interrupt handler.
995 ---------------------------------------------------------------------------- */
996 static irqreturn_t mace_interrupt(int irq, void *dev_id)
998 struct net_device *dev = (struct net_device *) dev_id;
999 mace_private *lp = netdev_priv(dev);
1000 unsigned int ioaddr;
1002 int IntrCnt = MACE_MAX_IR_ITERATIONS;
1005 DEBUG(2, "mace_interrupt(): irq 0x%X for unknown device.\n",
1010 ioaddr = dev->base_addr;
1012 if (lp->tx_irq_disabled) {
1014 (lp->tx_irq_disabled?
1015 KERN_NOTICE "%s: Interrupt with tx_irq_disabled "
1016 "[isr=%02X, imr=%02X]\n":
1017 KERN_NOTICE "%s: Re-entering the interrupt handler "
1018 "[isr=%02X, imr=%02X]\n"),
1020 inb(ioaddr + AM2150_MACE_BASE + MACE_IR),
1021 inb(ioaddr + AM2150_MACE_BASE + MACE_IMR)
1023 /* WARNING: MACE_IR has been read! */
1027 if (!netif_device_present(dev)) {
1028 DEBUG(2, "%s: interrupt from dead card\n", dev->name);
1033 /* WARNING: MACE_IR is a READ/CLEAR port! */
1034 status = inb(ioaddr + AM2150_MACE_BASE + MACE_IR);
1036 DEBUG(3, "mace_interrupt: irq 0x%X status 0x%X.\n", irq, status);
1038 if (status & MACE_IR_RCVINT) {
1039 mace_rx(dev, MACE_MAX_RX_ITERATIONS);
1042 if (status & MACE_IR_XMTINT) {
1043 unsigned char fifofc;
1044 unsigned char xmtrc;
1045 unsigned char xmtfs;
1047 fifofc = inb(ioaddr + AM2150_MACE_BASE + MACE_FIFOFC);
1048 if ((fifofc & MACE_FIFOFC_XMTFC)==0) {
1049 lp->linux_stats.tx_errors++;
1050 outb(0xFF, ioaddr + AM2150_XMT_SKIP);
1053 /* Transmit Retry Count (XMTRC, reg 4) */
1054 xmtrc = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTRC);
1055 if (xmtrc & MACE_XMTRC_EXDEF) lp->mace_stats.exdef++;
1056 lp->mace_stats.xmtrc += (xmtrc & MACE_XMTRC_XMTRC);
1059 (xmtfs = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTFS)) &
1060 MACE_XMTFS_XMTSV /* Transmit Status Valid */
1062 lp->mace_stats.xmtsv++;
1064 if (xmtfs & ~MACE_XMTFS_XMTSV) {
1065 if (xmtfs & MACE_XMTFS_UFLO) {
1066 /* Underflow. Indicates that the Transmit FIFO emptied before
1067 the end of frame was reached. */
1068 lp->mace_stats.uflo++;
1070 if (xmtfs & MACE_XMTFS_LCOL) {
1071 /* Late Collision */
1072 lp->mace_stats.lcol++;
1074 if (xmtfs & MACE_XMTFS_MORE) {
1075 /* MORE than one retry was needed */
1076 lp->mace_stats.more++;
1078 if (xmtfs & MACE_XMTFS_ONE) {
1079 /* Exactly ONE retry occurred */
1080 lp->mace_stats.one++;
1082 if (xmtfs & MACE_XMTFS_DEFER) {
1083 /* Transmission was defered */
1084 lp->mace_stats.defer++;
1086 if (xmtfs & MACE_XMTFS_LCAR) {
1087 /* Loss of carrier */
1088 lp->mace_stats.lcar++;
1090 if (xmtfs & MACE_XMTFS_RTRY) {
1091 /* Retry error: transmit aborted after 16 attempts */
1092 lp->mace_stats.rtry++;
1094 } /* if (xmtfs & ~MACE_XMTFS_XMTSV) */
1096 } /* if (xmtfs & MACE_XMTFS_XMTSV) */
1098 lp->linux_stats.tx_packets++;
1099 lp->tx_free_frames++;
1100 netif_wake_queue(dev);
1101 } /* if (status & MACE_IR_XMTINT) */
1103 if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) {
1104 if (status & MACE_IR_JAB) {
1105 /* Jabber Error. Excessive transmit duration (20-150ms). */
1106 lp->mace_stats.jab++;
1108 if (status & MACE_IR_BABL) {
1109 /* Babble Error. >1518 bytes transmitted. */
1110 lp->mace_stats.babl++;
1112 if (status & MACE_IR_CERR) {
1113 /* Collision Error. CERR indicates the absence of the
1114 Signal Quality Error Test message after a packet
1116 lp->mace_stats.cerr++;
1118 if (status & MACE_IR_RCVCCO) {
1119 /* Receive Collision Count Overflow; */
1120 lp->mace_stats.rcvcco++;
1122 if (status & MACE_IR_RNTPCO) {
1123 /* Runt Packet Count Overflow */
1124 lp->mace_stats.rntpco++;
1126 if (status & MACE_IR_MPCO) {
1127 /* Missed Packet Count Overflow */
1128 lp->mace_stats.mpco++;
1130 } /* if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) */
1132 } while ((status & ~MACE_IMR_DEFAULT) && (--IntrCnt));
1135 } /* mace_interrupt */
1137 /* ----------------------------------------------------------------------------
1140 ---------------------------------------------------------------------------- */
1141 static int mace_rx(struct net_device *dev, unsigned char RxCnt)
1143 mace_private *lp = netdev_priv(dev);
1144 unsigned int ioaddr = dev->base_addr;
1145 unsigned char rx_framecnt;
1146 unsigned short rx_status;
1149 ((rx_framecnt = inb(ioaddr + AM2150_RCV_FRAME_COUNT)) > 0) &&
1150 (rx_framecnt <= 12) && /* rx_framecnt==0xFF if card is extracted. */
1153 rx_status = inw(ioaddr + AM2150_RCV);
1155 DEBUG(3, "%s: in mace_rx(), framecnt 0x%X, rx_status"
1156 " 0x%X.\n", dev->name, rx_framecnt, rx_status);
1158 if (rx_status & MACE_RCVFS_RCVSTS) { /* Error, update stats. */
1159 lp->linux_stats.rx_errors++;
1160 if (rx_status & MACE_RCVFS_OFLO) {
1161 lp->mace_stats.oflo++;
1163 if (rx_status & MACE_RCVFS_CLSN) {
1164 lp->mace_stats.clsn++;
1166 if (rx_status & MACE_RCVFS_FRAM) {
1167 lp->mace_stats.fram++;
1169 if (rx_status & MACE_RCVFS_FCS) {
1170 lp->mace_stats.fcs++;
1173 short pkt_len = (rx_status & ~MACE_RCVFS_RCVSTS) - 4;
1174 /* Auto Strip is off, always subtract 4 */
1175 struct sk_buff *skb;
1177 lp->mace_stats.rfs_rntpc += inb(ioaddr + AM2150_RCV);
1178 /* runt packet count */
1179 lp->mace_stats.rfs_rcvcc += inb(ioaddr + AM2150_RCV);
1180 /* rcv collision count */
1182 DEBUG(3, " receiving packet size 0x%X rx_status"
1183 " 0x%X.\n", pkt_len, rx_status);
1185 skb = dev_alloc_skb(pkt_len+2);
1188 skb_reserve(skb, 2);
1189 insw(ioaddr + AM2150_RCV, skb_put(skb, pkt_len), pkt_len>>1);
1191 *(skb_tail_pointer(skb) - 1) = inb(ioaddr + AM2150_RCV);
1192 skb->protocol = eth_type_trans(skb, dev);
1194 netif_rx(skb); /* Send the packet to the upper (protocol) layers. */
1196 dev->last_rx = jiffies;
1197 lp->linux_stats.rx_packets++;
1198 lp->linux_stats.rx_bytes += pkt_len;
1199 outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */
1202 DEBUG(1, "%s: couldn't allocate a sk_buff of size"
1203 " %d.\n", dev->name, pkt_len);
1204 lp->linux_stats.rx_dropped++;
1207 outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */
1213 /* ----------------------------------------------------------------------------
1215 ---------------------------------------------------------------------------- */
1216 static void pr_linux_stats(struct net_device_stats *pstats)
1218 DEBUG(2, "pr_linux_stats\n");
1219 DEBUG(2, " rx_packets=%-7ld tx_packets=%ld\n",
1220 (long)pstats->rx_packets, (long)pstats->tx_packets);
1221 DEBUG(2, " rx_errors=%-7ld tx_errors=%ld\n",
1222 (long)pstats->rx_errors, (long)pstats->tx_errors);
1223 DEBUG(2, " rx_dropped=%-7ld tx_dropped=%ld\n",
1224 (long)pstats->rx_dropped, (long)pstats->tx_dropped);
1225 DEBUG(2, " multicast=%-7ld collisions=%ld\n",
1226 (long)pstats->multicast, (long)pstats->collisions);
1228 DEBUG(2, " rx_length_errors=%-7ld rx_over_errors=%ld\n",
1229 (long)pstats->rx_length_errors, (long)pstats->rx_over_errors);
1230 DEBUG(2, " rx_crc_errors=%-7ld rx_frame_errors=%ld\n",
1231 (long)pstats->rx_crc_errors, (long)pstats->rx_frame_errors);
1232 DEBUG(2, " rx_fifo_errors=%-7ld rx_missed_errors=%ld\n",
1233 (long)pstats->rx_fifo_errors, (long)pstats->rx_missed_errors);
1235 DEBUG(2, " tx_aborted_errors=%-7ld tx_carrier_errors=%ld\n",
1236 (long)pstats->tx_aborted_errors, (long)pstats->tx_carrier_errors);
1237 DEBUG(2, " tx_fifo_errors=%-7ld tx_heartbeat_errors=%ld\n",
1238 (long)pstats->tx_fifo_errors, (long)pstats->tx_heartbeat_errors);
1239 DEBUG(2, " tx_window_errors=%ld\n",
1240 (long)pstats->tx_window_errors);
1241 } /* pr_linux_stats */
1243 /* ----------------------------------------------------------------------------
1245 ---------------------------------------------------------------------------- */
1246 static void pr_mace_stats(mace_statistics *pstats)
1248 DEBUG(2, "pr_mace_stats\n");
1250 DEBUG(2, " xmtsv=%-7d uflo=%d\n",
1251 pstats->xmtsv, pstats->uflo);
1252 DEBUG(2, " lcol=%-7d more=%d\n",
1253 pstats->lcol, pstats->more);
1254 DEBUG(2, " one=%-7d defer=%d\n",
1255 pstats->one, pstats->defer);
1256 DEBUG(2, " lcar=%-7d rtry=%d\n",
1257 pstats->lcar, pstats->rtry);
1260 DEBUG(2, " exdef=%-7d xmtrc=%d\n",
1261 pstats->exdef, pstats->xmtrc);
1263 /* RFS1--Receive Status (RCVSTS) */
1264 DEBUG(2, " oflo=%-7d clsn=%d\n",
1265 pstats->oflo, pstats->clsn);
1266 DEBUG(2, " fram=%-7d fcs=%d\n",
1267 pstats->fram, pstats->fcs);
1269 /* RFS2--Runt Packet Count (RNTPC) */
1270 /* RFS3--Receive Collision Count (RCVCC) */
1271 DEBUG(2, " rfs_rntpc=%-7d rfs_rcvcc=%d\n",
1272 pstats->rfs_rntpc, pstats->rfs_rcvcc);
1275 DEBUG(2, " jab=%-7d babl=%d\n",
1276 pstats->jab, pstats->babl);
1277 DEBUG(2, " cerr=%-7d rcvcco=%d\n",
1278 pstats->cerr, pstats->rcvcco);
1279 DEBUG(2, " rntpco=%-7d mpco=%d\n",
1280 pstats->rntpco, pstats->mpco);
1283 DEBUG(2, " mpc=%d\n", pstats->mpc);
1286 DEBUG(2, " rntpc=%d\n", pstats->rntpc);
1289 DEBUG(2, " rcvcc=%d\n", pstats->rcvcc);
1291 } /* pr_mace_stats */
1293 /* ----------------------------------------------------------------------------
1295 Update statistics. We change to register window 1, so this
1296 should be run single-threaded if the device is active. This is
1297 expected to be a rare operation, and it's simpler for the rest
1298 of the driver to assume that window 0 is always valid rather
1299 than use a special window-state variable.
1301 oflo & uflo should _never_ occur since it would mean the Xilinx
1302 was not able to transfer data between the MACE FIFO and the
1303 card's SRAM fast enough. If this happens, something is
1304 seriously wrong with the hardware.
1305 ---------------------------------------------------------------------------- */
1306 static void update_stats(unsigned int ioaddr, struct net_device *dev)
1308 mace_private *lp = netdev_priv(dev);
1310 lp->mace_stats.rcvcc += mace_read(lp, ioaddr, MACE_RCVCC);
1311 lp->mace_stats.rntpc += mace_read(lp, ioaddr, MACE_RNTPC);
1312 lp->mace_stats.mpc += mace_read(lp, ioaddr, MACE_MPC);
1313 /* At this point, mace_stats is fully updated for this call.
1314 We may now update the linux_stats. */
1316 /* The MACE has no equivalent for linux_stats field which are commented
1319 /* lp->linux_stats.multicast; */
1320 lp->linux_stats.collisions =
1321 lp->mace_stats.rcvcco * 256 + lp->mace_stats.rcvcc;
1322 /* Collision: The MACE may retry sending a packet 15 times
1323 before giving up. The retry count is in XMTRC.
1324 Does each retry constitute a collision?
1325 If so, why doesn't the RCVCC record these collisions? */
1327 /* detailed rx_errors: */
1328 lp->linux_stats.rx_length_errors =
1329 lp->mace_stats.rntpco * 256 + lp->mace_stats.rntpc;
1330 /* lp->linux_stats.rx_over_errors */
1331 lp->linux_stats.rx_crc_errors = lp->mace_stats.fcs;
1332 lp->linux_stats.rx_frame_errors = lp->mace_stats.fram;
1333 lp->linux_stats.rx_fifo_errors = lp->mace_stats.oflo;
1334 lp->linux_stats.rx_missed_errors =
1335 lp->mace_stats.mpco * 256 + lp->mace_stats.mpc;
1337 /* detailed tx_errors */
1338 lp->linux_stats.tx_aborted_errors = lp->mace_stats.rtry;
1339 lp->linux_stats.tx_carrier_errors = lp->mace_stats.lcar;
1340 /* LCAR usually results from bad cabling. */
1341 lp->linux_stats.tx_fifo_errors = lp->mace_stats.uflo;
1342 lp->linux_stats.tx_heartbeat_errors = lp->mace_stats.cerr;
1343 /* lp->linux_stats.tx_window_errors; */
1346 } /* update_stats */
1348 /* ----------------------------------------------------------------------------
1350 Gathers ethernet statistics from the MACE chip.
1351 ---------------------------------------------------------------------------- */
1352 static struct net_device_stats *mace_get_stats(struct net_device *dev)
1354 mace_private *lp = netdev_priv(dev);
1356 update_stats(dev->base_addr, dev);
1358 DEBUG(1, "%s: updating the statistics.\n", dev->name);
1359 pr_linux_stats(&lp->linux_stats);
1360 pr_mace_stats(&lp->mace_stats);
1362 return &lp->linux_stats;
1363 } /* net_device_stats */
1365 /* ----------------------------------------------------------------------------
1367 Modified from Am79C90 data sheet.
1368 ---------------------------------------------------------------------------- */
1370 #ifdef BROKEN_MULTICAST
1372 static void updateCRC(int *CRC, int bit)
1379 }; /* CRC polynomial. poly[n] = coefficient of the x**n term of the
1380 CRC generator polynomial. */
1384 /* shift CRC and control bit (CRC[32]) */
1385 for (j = 32; j > 0; j--)
1389 /* If bit XOR(control bit) = 1, set CRC = CRC XOR polynomial. */
1391 for (j = 0; j < 32; j++)
1395 /* ----------------------------------------------------------------------------
1397 Build logical address filter.
1398 Modified from Am79C90 data sheet.
1401 ladrf: logical address filter (contents initialized to 0)
1402 adr: ethernet address
1403 ---------------------------------------------------------------------------- */
1404 static void BuildLAF(int *ladrf, int *adr)
1406 int CRC[33]={1}; /* CRC register, 1 word/bit + extra control bit */
1408 int i, byte; /* temporary array indices */
1409 int hashcode; /* the output object */
1413 for (byte = 0; byte < 6; byte++)
1414 for (i = 0; i < 8; i++)
1415 updateCRC(CRC, (adr[byte] >> i) & 1);
1418 for (i = 0; i < 6; i++)
1419 hashcode = (hashcode << 1) + CRC[i];
1421 byte = hashcode >> 3;
1422 ladrf[byte] |= (1 << (hashcode & 7));
1426 printk(KERN_DEBUG " adr =");
1427 for (i = 0; i < 6; i++)
1428 printk(" %02X", adr[i]);
1429 printk("\n" KERN_DEBUG " hashcode = %d(decimal), ladrf[0:63]"
1431 for (i = 0; i < 8; i++)
1432 printk(" %02X", ladrf[i]);
1438 /* ----------------------------------------------------------------------------
1439 restore_multicast_list
1440 Restores the multicast filter for MACE chip to the last
1441 set_multicast_list() call.
1446 ---------------------------------------------------------------------------- */
1447 static void restore_multicast_list(struct net_device *dev)
1449 mace_private *lp = netdev_priv(dev);
1450 int num_addrs = lp->multicast_num_addrs;
1451 int *ladrf = lp->multicast_ladrf;
1452 unsigned int ioaddr = dev->base_addr;
1455 DEBUG(2, "%s: restoring Rx mode to %d addresses.\n",
1456 dev->name, num_addrs);
1458 if (num_addrs > 0) {
1460 DEBUG(1, "Attempt to restore multicast list detected.\n");
1462 mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_LOGADDR);
1463 /* Poll ADDRCHG bit */
1464 while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG)
1466 /* Set LADRF register */
1467 for (i = 0; i < MACE_LADRF_LEN; i++)
1468 mace_write(lp, ioaddr, MACE_LADRF, ladrf[i]);
1470 mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_RCVFCSE | MACE_UTR_LOOP_EXTERNAL);
1471 mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV);
1473 } else if (num_addrs < 0) {
1475 /* Promiscuous mode: receive all packets */
1476 mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
1477 mace_write(lp, ioaddr, MACE_MACCC,
1478 MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV
1484 mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
1485 mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV);
1488 } /* restore_multicast_list */
1490 /* ----------------------------------------------------------------------------
1492 Set or clear the multicast filter for this adaptor.
1495 num_addrs == -1 Promiscuous mode, receive all packets
1496 num_addrs == 0 Normal mode, clear multicast list
1497 num_addrs > 0 Multicast mode, receive normal and MC packets, and do
1498 best-effort filtering.
1502 ---------------------------------------------------------------------------- */
1504 static void set_multicast_list(struct net_device *dev)
1506 mace_private *lp = netdev_priv(dev);
1507 int adr[ETHER_ADDR_LEN] = {0}; /* Ethernet address */
1509 struct dev_mc_list *dmi = dev->mc_list;
1514 if (dev->mc_count != old) {
1515 old = dev->mc_count;
1516 DEBUG(0, "%s: setting Rx mode to %d addresses.\n",
1522 /* Set multicast_num_addrs. */
1523 lp->multicast_num_addrs = dev->mc_count;
1525 /* Set multicast_ladrf. */
1526 if (num_addrs > 0) {
1527 /* Calculate multicast logical address filter */
1528 memset(lp->multicast_ladrf, 0, MACE_LADRF_LEN);
1529 for (i = 0; i < dev->mc_count; i++) {
1530 memcpy(adr, dmi->dmi_addr, ETHER_ADDR_LEN);
1532 BuildLAF(lp->multicast_ladrf, adr);
1536 restore_multicast_list(dev);
1538 } /* set_multicast_list */
1540 #endif /* BROKEN_MULTICAST */
1542 static void restore_multicast_list(struct net_device *dev)
1544 unsigned int ioaddr = dev->base_addr;
1545 mace_private *lp = netdev_priv(dev);
1547 DEBUG(2, "%s: restoring Rx mode to %d addresses.\n", dev->name,
1548 lp->multicast_num_addrs);
1550 if (dev->flags & IFF_PROMISC) {
1551 /* Promiscuous mode: receive all packets */
1552 mace_write(lp,ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
1553 mace_write(lp, ioaddr, MACE_MACCC,
1554 MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV
1558 mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
1559 mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV);
1561 } /* restore_multicast_list */
1563 static void set_multicast_list(struct net_device *dev)
1565 mace_private *lp = netdev_priv(dev);
1570 if (dev->mc_count != old) {
1571 old = dev->mc_count;
1572 DEBUG(0, "%s: setting Rx mode to %d addresses.\n",
1578 lp->multicast_num_addrs = dev->mc_count;
1579 restore_multicast_list(dev);
1581 } /* set_multicast_list */
1583 static struct pcmcia_device_id nmclan_ids[] = {
1584 PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Ethernet", 0x085a850b, 0x00b2e941),
1585 PCMCIA_DEVICE_PROD_ID12("Portable Add-ons", "Ethernet+", 0xebf1d60, 0xad673aaf),
1588 MODULE_DEVICE_TABLE(pcmcia, nmclan_ids);
1590 static struct pcmcia_driver nmclan_cs_driver = {
1591 .owner = THIS_MODULE,
1593 .name = "nmclan_cs",
1595 .probe = nmclan_probe,
1596 .remove = nmclan_detach,
1597 .id_table = nmclan_ids,
1598 .suspend = nmclan_suspend,
1599 .resume = nmclan_resume,
1602 static int __init init_nmclan_cs(void)
1604 return pcmcia_register_driver(&nmclan_cs_driver);
1607 static void __exit exit_nmclan_cs(void)
1609 pcmcia_unregister_driver(&nmclan_cs_driver);
1612 module_init(init_nmclan_cs);
1613 module_exit(exit_nmclan_cs);