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.h>
150 #include <pcmcia/cisreg.h>
151 #include <pcmcia/cistpl.h>
152 #include <pcmcia/ds.h>
154 #include <asm/uaccess.h>
156 #include <asm/system.h>
158 /* ----------------------------------------------------------------------------
160 ---------------------------------------------------------------------------- */
162 #define ETHER_ADDR_LEN ETH_ALEN
163 /* 6 bytes in an Ethernet Address */
164 #define MACE_LADRF_LEN 8
165 /* 8 bytes in Logical Address Filter */
167 /* Loop Control Defines */
168 #define MACE_MAX_IR_ITERATIONS 10
169 #define MACE_MAX_RX_ITERATIONS 12
171 TBD: Dean brought this up, and I assumed the hardware would
174 If MACE_MAX_RX_ITERATIONS is > 1, rx_framecnt may still be
175 non-zero when the isr exits. We may not get another interrupt
176 to process the remaining packets for some time.
180 The Am2150 has a Xilinx XC3042 field programmable gate array (FPGA)
181 which manages the interface between the MACE and the PCMCIA bus. It
182 also includes buffer management for the 32K x 8 SRAM to control up to
183 four transmit and 12 receive frames at a time.
185 #define AM2150_MAX_TX_FRAMES 4
186 #define AM2150_MAX_RX_FRAMES 12
188 /* Am2150 Ethernet Card I/O Mapping */
189 #define AM2150_RCV 0x00
190 #define AM2150_XMT 0x04
191 #define AM2150_XMT_SKIP 0x09
192 #define AM2150_RCV_NEXT 0x0A
193 #define AM2150_RCV_FRAME_COUNT 0x0B
194 #define AM2150_MACE_BANK 0x0C
195 #define AM2150_MACE_BASE 0x10
198 #define MACE_RCVFIFO 0
199 #define MACE_XMTFIFO 1
205 #define MACE_FIFOFC 7
209 #define MACE_BIUCC 11
210 #define MACE_FIFOCC 12
211 #define MACE_MACCC 13
212 #define MACE_PLSCC 14
213 #define MACE_PHYCC 15
214 #define MACE_CHIPIDL 16
215 #define MACE_CHIPIDH 17
218 #define MACE_LADRF 20
224 #define MACE_RNTPC 26
225 #define MACE_RCVCC 27
232 #define MACE_XMTRC_EXDEF 0x80
233 #define MACE_XMTRC_XMTRC 0x0F
235 #define MACE_XMTFS_XMTSV 0x80
236 #define MACE_XMTFS_UFLO 0x40
237 #define MACE_XMTFS_LCOL 0x20
238 #define MACE_XMTFS_MORE 0x10
239 #define MACE_XMTFS_ONE 0x08
240 #define MACE_XMTFS_DEFER 0x04
241 #define MACE_XMTFS_LCAR 0x02
242 #define MACE_XMTFS_RTRY 0x01
244 #define MACE_RCVFS_RCVSTS 0xF000
245 #define MACE_RCVFS_OFLO 0x8000
246 #define MACE_RCVFS_CLSN 0x4000
247 #define MACE_RCVFS_FRAM 0x2000
248 #define MACE_RCVFS_FCS 0x1000
250 #define MACE_FIFOFC_RCVFC 0xF0
251 #define MACE_FIFOFC_XMTFC 0x0F
253 #define MACE_IR_JAB 0x80
254 #define MACE_IR_BABL 0x40
255 #define MACE_IR_CERR 0x20
256 #define MACE_IR_RCVCCO 0x10
257 #define MACE_IR_RNTPCO 0x08
258 #define MACE_IR_MPCO 0x04
259 #define MACE_IR_RCVINT 0x02
260 #define MACE_IR_XMTINT 0x01
262 #define MACE_MACCC_PROM 0x80
263 #define MACE_MACCC_DXMT2PD 0x40
264 #define MACE_MACCC_EMBA 0x20
265 #define MACE_MACCC_RESERVED 0x10
266 #define MACE_MACCC_DRCVPA 0x08
267 #define MACE_MACCC_DRCVBC 0x04
268 #define MACE_MACCC_ENXMT 0x02
269 #define MACE_MACCC_ENRCV 0x01
271 #define MACE_PHYCC_LNKFL 0x80
272 #define MACE_PHYCC_DLNKTST 0x40
273 #define MACE_PHYCC_REVPOL 0x20
274 #define MACE_PHYCC_DAPC 0x10
275 #define MACE_PHYCC_LRT 0x08
276 #define MACE_PHYCC_ASEL 0x04
277 #define MACE_PHYCC_RWAKE 0x02
278 #define MACE_PHYCC_AWAKE 0x01
280 #define MACE_IAC_ADDRCHG 0x80
281 #define MACE_IAC_PHYADDR 0x04
282 #define MACE_IAC_LOGADDR 0x02
284 #define MACE_UTR_RTRE 0x80
285 #define MACE_UTR_RTRD 0x40
286 #define MACE_UTR_RPA 0x20
287 #define MACE_UTR_FCOLL 0x10
288 #define MACE_UTR_RCVFCSE 0x08
289 #define MACE_UTR_LOOP_INCL_MENDEC 0x06
290 #define MACE_UTR_LOOP_NO_MENDEC 0x04
291 #define MACE_UTR_LOOP_EXTERNAL 0x02
292 #define MACE_UTR_LOOP_NONE 0x00
293 #define MACE_UTR_RESERVED 0x01
295 /* Switch MACE register bank (only 0 and 1 are valid) */
296 #define MACEBANK(win_num) outb((win_num), ioaddr + AM2150_MACE_BANK)
298 #define MACE_IMR_DEFAULT \
309 #undef MACE_IMR_DEFAULT
310 #define MACE_IMR_DEFAULT 0x00 /* New statistics handling: grab everything */
312 #define TX_TIMEOUT ((400*HZ)/1000)
314 /* ----------------------------------------------------------------------------
316 ---------------------------------------------------------------------------- */
318 typedef struct _mace_statistics
{
333 /* RFS1--Receive Status (RCVSTS) */
339 /* RFS2--Runt Packet Count (RNTPC) */
342 /* RFS3--Receive Collision Count (RCVCC) */
363 typedef struct _mace_private
{
364 struct pcmcia_device
*p_dev
;
365 struct net_device_stats linux_stats
; /* Linux statistics counters */
366 mace_statistics mace_stats
; /* MACE chip statistics counters */
368 /* restore_multicast_list() state variables */
369 int multicast_ladrf
[MACE_LADRF_LEN
]; /* Logical address filter */
370 int multicast_num_addrs
;
372 char tx_free_frames
; /* Number of free transmit frame buffers */
373 char tx_irq_disabled
; /* MACE TX interrupt disabled */
375 spinlock_t bank_lock
; /* Must be held if you step off bank 0 */
378 /* ----------------------------------------------------------------------------
379 Private Global Variables
380 ---------------------------------------------------------------------------- */
382 static const char *if_names
[]={
383 "Auto", "10baseT", "BNC",
386 /* ----------------------------------------------------------------------------
388 These are the parameters that can be set during loading with
390 ---------------------------------------------------------------------------- */
392 MODULE_DESCRIPTION("New Media PCMCIA ethernet driver");
393 MODULE_LICENSE("GPL");
395 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
397 /* 0=auto, 1=10baseT, 2 = 10base2, default=auto */
398 INT_MODULE_PARM(if_port
, 0);
401 /* ----------------------------------------------------------------------------
403 ---------------------------------------------------------------------------- */
405 static int nmclan_config(struct pcmcia_device
*link
);
406 static void nmclan_release(struct pcmcia_device
*link
);
408 static void nmclan_reset(struct net_device
*dev
);
409 static int mace_config(struct net_device
*dev
, struct ifmap
*map
);
410 static int mace_open(struct net_device
*dev
);
411 static int mace_close(struct net_device
*dev
);
412 static netdev_tx_t
mace_start_xmit(struct sk_buff
*skb
,
413 struct net_device
*dev
);
414 static void mace_tx_timeout(struct net_device
*dev
);
415 static irqreturn_t
mace_interrupt(int irq
, void *dev_id
);
416 static struct net_device_stats
*mace_get_stats(struct net_device
*dev
);
417 static int mace_rx(struct net_device
*dev
, unsigned char RxCnt
);
418 static void restore_multicast_list(struct net_device
*dev
);
419 static void set_multicast_list(struct net_device
*dev
);
420 static const struct ethtool_ops netdev_ethtool_ops
;
423 static void nmclan_detach(struct pcmcia_device
*p_dev
);
425 static const struct net_device_ops mace_netdev_ops
= {
426 .ndo_open
= mace_open
,
427 .ndo_stop
= mace_close
,
428 .ndo_start_xmit
= mace_start_xmit
,
429 .ndo_tx_timeout
= mace_tx_timeout
,
430 .ndo_set_config
= mace_config
,
431 .ndo_get_stats
= mace_get_stats
,
432 .ndo_set_multicast_list
= set_multicast_list
,
433 .ndo_change_mtu
= eth_change_mtu
,
434 .ndo_set_mac_address
= eth_mac_addr
,
435 .ndo_validate_addr
= eth_validate_addr
,
438 /* ----------------------------------------------------------------------------
440 Creates an "instance" of the driver, allocating local data
441 structures for one device. The device is registered with Card
443 ---------------------------------------------------------------------------- */
445 static int nmclan_probe(struct pcmcia_device
*link
)
448 struct net_device
*dev
;
450 dev_dbg(&link
->dev
, "nmclan_attach()\n");
452 /* Create new ethernet device */
453 dev
= alloc_etherdev(sizeof(mace_private
));
456 lp
= netdev_priv(dev
);
460 spin_lock_init(&lp
->bank_lock
);
461 link
->io
.NumPorts1
= 32;
462 link
->io
.Attributes1
= IO_DATA_PATH_WIDTH_AUTO
;
463 link
->io
.IOAddrLines
= 5;
464 link
->conf
.Attributes
= CONF_ENABLE_IRQ
;
465 link
->conf
.IntType
= INT_MEMORY_AND_IO
;
466 link
->conf
.ConfigIndex
= 1;
467 link
->conf
.Present
= PRESENT_OPTION
;
469 lp
->tx_free_frames
=AM2150_MAX_TX_FRAMES
;
471 dev
->netdev_ops
= &mace_netdev_ops
;
472 SET_ETHTOOL_OPS(dev
, &netdev_ethtool_ops
);
473 dev
->watchdog_timeo
= TX_TIMEOUT
;
475 return nmclan_config(link
);
476 } /* nmclan_attach */
478 /* ----------------------------------------------------------------------------
480 This deletes a driver "instance". The device is de-registered
481 with Card Services. If it has been released, all local data
482 structures are freed. Otherwise, the structures will be freed
483 when the device is released.
484 ---------------------------------------------------------------------------- */
486 static void nmclan_detach(struct pcmcia_device
*link
)
488 struct net_device
*dev
= link
->priv
;
490 dev_dbg(&link
->dev
, "nmclan_detach\n");
492 unregister_netdev(dev
);
494 nmclan_release(link
);
497 } /* nmclan_detach */
499 /* ----------------------------------------------------------------------------
501 Reads a MACE register. This is bank independent; however, the
502 caller must ensure that this call is not interruptable. We are
503 assuming that during normal operation, the MACE is always in
505 ---------------------------------------------------------------------------- */
506 static int mace_read(mace_private
*lp
, unsigned int ioaddr
, int reg
)
512 case 0: /* register 0-15 */
513 data
= inb(ioaddr
+ AM2150_MACE_BASE
+ reg
);
515 case 1: /* register 16-31 */
516 spin_lock_irqsave(&lp
->bank_lock
, flags
);
518 data
= inb(ioaddr
+ AM2150_MACE_BASE
+ (reg
& 0x0F));
520 spin_unlock_irqrestore(&lp
->bank_lock
, flags
);
523 return (data
& 0xFF);
526 /* ----------------------------------------------------------------------------
528 Writes to a MACE register. This is bank independent; however,
529 the caller must ensure that this call is not interruptable. We
530 are assuming that during normal operation, the MACE is always in
532 ---------------------------------------------------------------------------- */
533 static void mace_write(mace_private
*lp
, unsigned int ioaddr
, int reg
,
539 case 0: /* register 0-15 */
540 outb(data
& 0xFF, ioaddr
+ AM2150_MACE_BASE
+ reg
);
542 case 1: /* register 16-31 */
543 spin_lock_irqsave(&lp
->bank_lock
, flags
);
545 outb(data
& 0xFF, ioaddr
+ AM2150_MACE_BASE
+ (reg
& 0x0F));
547 spin_unlock_irqrestore(&lp
->bank_lock
, flags
);
552 /* ----------------------------------------------------------------------------
554 Resets the MACE chip.
555 ---------------------------------------------------------------------------- */
556 static int mace_init(mace_private
*lp
, unsigned int ioaddr
, char *enet_addr
)
561 /* MACE Software reset */
562 mace_write(lp
, ioaddr
, MACE_BIUCC
, 1);
563 while (mace_read(lp
, ioaddr
, MACE_BIUCC
) & 0x01) {
564 /* Wait for reset bit to be cleared automatically after <= 200ns */;
567 printk(KERN_ERR
"mace: reset failed, card removed ?\n");
572 mace_write(lp
, ioaddr
, MACE_BIUCC
, 0);
574 /* The Am2150 requires that the MACE FIFOs operate in burst mode. */
575 mace_write(lp
, ioaddr
, MACE_FIFOCC
, 0x0F);
577 mace_write(lp
,ioaddr
, MACE_RCVFC
, 0); /* Disable Auto Strip Receive */
578 mace_write(lp
, ioaddr
, MACE_IMR
, 0xFF); /* Disable all interrupts until _open */
581 * Bit 2-1 PORTSEL[1-0] Port Select.
584 * 10 DAI Port (reserved in Am2150)
586 * For this card, only the first two are valid.
587 * So, PLSCC should be set to
590 * Or just set ASEL in PHYCC below!
594 mace_write(lp
, ioaddr
, MACE_PLSCC
, 0x02);
597 mace_write(lp
, ioaddr
, MACE_PLSCC
, 0x00);
600 mace_write(lp
, ioaddr
, MACE_PHYCC
, /* ASEL */ 4);
601 /* ASEL Auto Select. When set, the PORTSEL[1-0] bits are overridden,
602 and the MACE device will automatically select the operating media
607 mace_write(lp
, ioaddr
, MACE_IAC
, MACE_IAC_ADDRCHG
| MACE_IAC_PHYADDR
);
608 /* Poll ADDRCHG bit */
610 while (mace_read(lp
, ioaddr
, MACE_IAC
) & MACE_IAC_ADDRCHG
)
614 printk(KERN_ERR
"mace: ADDRCHG timeout, card removed ?\n");
618 /* Set PADR register */
619 for (i
= 0; i
< ETHER_ADDR_LEN
; i
++)
620 mace_write(lp
, ioaddr
, MACE_PADR
, enet_addr
[i
]);
622 /* MAC Configuration Control Register should be written last */
623 /* Let set_multicast_list set this. */
624 /* mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); */
625 mace_write(lp
, ioaddr
, MACE_MACCC
, 0x00);
629 /* ----------------------------------------------------------------------------
631 This routine is scheduled to run after a CARD_INSERTION event
632 is received, to configure the PCMCIA socket, and to make the
633 ethernet device available to the system.
634 ---------------------------------------------------------------------------- */
636 static int nmclan_config(struct pcmcia_device
*link
)
638 struct net_device
*dev
= link
->priv
;
639 mace_private
*lp
= netdev_priv(dev
);
645 dev_dbg(&link
->dev
, "nmclan_config\n");
647 ret
= pcmcia_request_io(link
, &link
->io
);
650 ret
= pcmcia_request_exclusive_irq(link
, mace_interrupt
);
653 ret
= pcmcia_request_configuration(link
, &link
->conf
);
657 dev
->irq
= link
->irq
;
658 dev
->base_addr
= link
->io
.BasePort1
;
660 ioaddr
= dev
->base_addr
;
662 /* Read the ethernet address from the CIS. */
663 len
= pcmcia_get_tuple(link
, 0x80, &buf
);
664 if (!buf
|| len
< ETHER_ADDR_LEN
) {
668 memcpy(dev
->dev_addr
, buf
, ETHER_ADDR_LEN
);
671 /* Verify configuration by reading the MACE ID. */
675 sig
[0] = mace_read(lp
, ioaddr
, MACE_CHIPIDL
);
676 sig
[1] = mace_read(lp
, ioaddr
, MACE_CHIPIDH
);
677 if ((sig
[0] == 0x40) && ((sig
[1] & 0x0F) == 0x09)) {
678 dev_dbg(&link
->dev
, "nmclan_cs configured: mace id=%x %x\n",
681 printk(KERN_NOTICE
"nmclan_cs: mace id not found: %x %x should"
682 " be 0x40 0x?9\n", sig
[0], sig
[1]);
687 if(mace_init(lp
, ioaddr
, dev
->dev_addr
) == -1)
690 /* The if_port symbol can be set when the module is loaded */
692 dev
->if_port
= if_port
;
694 printk(KERN_NOTICE
"nmclan_cs: invalid if_port requested\n");
696 SET_NETDEV_DEV(dev
, &link
->dev
);
698 i
= register_netdev(dev
);
700 printk(KERN_NOTICE
"nmclan_cs: register_netdev() failed\n");
704 printk(KERN_INFO
"%s: nmclan: port %#3lx, irq %d, %s port,"
706 dev
->name
, dev
->base_addr
, dev
->irq
, if_names
[dev
->if_port
],
711 nmclan_release(link
);
713 } /* nmclan_config */
715 /* ----------------------------------------------------------------------------
717 After a card is removed, nmclan_release() will unregister the
718 net device, and release the PCMCIA configuration. If the device
719 is still open, this will be postponed until it is closed.
720 ---------------------------------------------------------------------------- */
721 static void nmclan_release(struct pcmcia_device
*link
)
723 dev_dbg(&link
->dev
, "nmclan_release\n");
724 pcmcia_disable_device(link
);
727 static int nmclan_suspend(struct pcmcia_device
*link
)
729 struct net_device
*dev
= link
->priv
;
732 netif_device_detach(dev
);
737 static int nmclan_resume(struct pcmcia_device
*link
)
739 struct net_device
*dev
= link
->priv
;
743 netif_device_attach(dev
);
750 /* ----------------------------------------------------------------------------
752 Reset and restore all of the Xilinx and MACE registers.
753 ---------------------------------------------------------------------------- */
754 static void nmclan_reset(struct net_device
*dev
)
756 mace_private
*lp
= netdev_priv(dev
);
759 struct pcmcia_device
*link
= &lp
->link
;
762 /* Save original COR value */
763 pcmcia_read_config_byte(link
, CISREG_COR
, &OrigCorValue
);
766 dev_dbg(&link
->dev
, "nmclan_reset: OrigCorValue=0x%x, resetting...\n",
768 pcmcia_write_config_byte(link
, CISREG_COR
, COR_SOFT_RESET
);
769 /* Need to wait for 20 ms for PCMCIA to finish reset. */
771 /* Restore original COR configuration index */
772 pcmcia_write_config_byte(link
, CISREG_COR
,
773 (COR_LEVEL_REQ
| (OrigCorValue
& COR_CONFIG_MASK
)));
774 /* Xilinx is now completely reset along with the MACE chip. */
775 lp
->tx_free_frames
=AM2150_MAX_TX_FRAMES
;
777 #endif /* #if RESET_XILINX */
779 /* Xilinx is now completely reset along with the MACE chip. */
780 lp
->tx_free_frames
=AM2150_MAX_TX_FRAMES
;
782 /* Reinitialize the MACE chip for operation. */
783 mace_init(lp
, dev
->base_addr
, dev
->dev_addr
);
784 mace_write(lp
, dev
->base_addr
, MACE_IMR
, MACE_IMR_DEFAULT
);
786 /* Restore the multicast list and enable TX and RX. */
787 restore_multicast_list(dev
);
790 /* ----------------------------------------------------------------------------
792 [Someone tell me what this is supposed to do? Is if_port a defined
793 standard? If so, there should be defines to indicate 1=10Base-T,
794 2=10Base-2, etc. including limited automatic detection.]
795 ---------------------------------------------------------------------------- */
796 static int mace_config(struct net_device
*dev
, struct ifmap
*map
)
798 if ((map
->port
!= (u_char
)(-1)) && (map
->port
!= dev
->if_port
)) {
799 if (map
->port
<= 2) {
800 dev
->if_port
= map
->port
;
801 printk(KERN_INFO
"%s: switched to %s port\n", dev
->name
,
802 if_names
[dev
->if_port
]);
809 /* ----------------------------------------------------------------------------
812 ---------------------------------------------------------------------------- */
813 static int mace_open(struct net_device
*dev
)
815 unsigned int ioaddr
= dev
->base_addr
;
816 mace_private
*lp
= netdev_priv(dev
);
817 struct pcmcia_device
*link
= lp
->p_dev
;
819 if (!pcmcia_dev_present(link
))
826 netif_start_queue(dev
);
829 return 0; /* Always succeed */
832 /* ----------------------------------------------------------------------------
834 Closes device driver.
835 ---------------------------------------------------------------------------- */
836 static int mace_close(struct net_device
*dev
)
838 unsigned int ioaddr
= dev
->base_addr
;
839 mace_private
*lp
= netdev_priv(dev
);
840 struct pcmcia_device
*link
= lp
->p_dev
;
842 dev_dbg(&link
->dev
, "%s: shutting down ethercard.\n", dev
->name
);
844 /* Mask off all interrupts from the MACE chip. */
845 outb(0xFF, ioaddr
+ AM2150_MACE_BASE
+ MACE_IMR
);
848 netif_stop_queue(dev
);
853 static void netdev_get_drvinfo(struct net_device
*dev
,
854 struct ethtool_drvinfo
*info
)
856 strcpy(info
->driver
, DRV_NAME
);
857 strcpy(info
->version
, DRV_VERSION
);
858 sprintf(info
->bus_info
, "PCMCIA 0x%lx", dev
->base_addr
);
861 static const struct ethtool_ops netdev_ethtool_ops
= {
862 .get_drvinfo
= netdev_get_drvinfo
,
865 /* ----------------------------------------------------------------------------
867 This routine begins the packet transmit function. When completed,
868 it will generate a transmit interrupt.
870 According to /usr/src/linux/net/inet/dev.c, if _start_xmit
871 returns 0, the "packet is now solely the responsibility of the
872 driver." If _start_xmit returns non-zero, the "transmission
873 failed, put skb back into a list."
874 ---------------------------------------------------------------------------- */
876 static void mace_tx_timeout(struct net_device
*dev
)
878 mace_private
*lp
= netdev_priv(dev
);
879 struct pcmcia_device
*link
= lp
->p_dev
;
881 printk(KERN_NOTICE
"%s: transmit timed out -- ", dev
->name
);
883 printk("resetting card\n");
884 pcmcia_reset_card(link
->socket
);
885 #else /* #if RESET_ON_TIMEOUT */
886 printk("NOT resetting card\n");
887 #endif /* #if RESET_ON_TIMEOUT */
888 dev
->trans_start
= jiffies
; /* prevent tx timeout */
889 netif_wake_queue(dev
);
892 static netdev_tx_t
mace_start_xmit(struct sk_buff
*skb
,
893 struct net_device
*dev
)
895 mace_private
*lp
= netdev_priv(dev
);
896 unsigned int ioaddr
= dev
->base_addr
;
898 netif_stop_queue(dev
);
900 pr_debug("%s: mace_start_xmit(length = %ld) called.\n",
901 dev
->name
, (long)skb
->len
);
903 #if (!TX_INTERRUPTABLE)
904 /* Disable MACE TX interrupts. */
905 outb(MACE_IMR_DEFAULT
| MACE_IR_XMTINT
,
906 ioaddr
+ AM2150_MACE_BASE
+ MACE_IMR
);
907 lp
->tx_irq_disabled
=1;
908 #endif /* #if (!TX_INTERRUPTABLE) */
911 /* This block must not be interrupted by another transmit request!
912 mace_tx_timeout will take care of timer-based retransmissions from
913 the upper layers. The interrupt handler is guaranteed never to
914 service a transmit interrupt while we are in here.
917 lp
->linux_stats
.tx_bytes
+= skb
->len
;
918 lp
->tx_free_frames
--;
920 /* WARNING: Write the _exact_ number of bytes written in the header! */
921 /* Put out the word header [must be an outw()] . . . */
922 outw(skb
->len
, ioaddr
+ AM2150_XMT
);
923 /* . . . and the packet [may be any combination of outw() and outb()] */
924 outsw(ioaddr
+ AM2150_XMT
, skb
->data
, skb
->len
>> 1);
926 /* Odd byte transfer */
927 outb(skb
->data
[skb
->len
-1], ioaddr
+ AM2150_XMT
);
931 if (lp
->tx_free_frames
> 0)
932 netif_start_queue(dev
);
933 #endif /* #if MULTI_TX */
936 #if (!TX_INTERRUPTABLE)
937 /* Re-enable MACE TX interrupts. */
938 lp
->tx_irq_disabled
=0;
939 outb(MACE_IMR_DEFAULT
, ioaddr
+ AM2150_MACE_BASE
+ MACE_IMR
);
940 #endif /* #if (!TX_INTERRUPTABLE) */
945 } /* mace_start_xmit */
947 /* ----------------------------------------------------------------------------
949 The interrupt handler.
950 ---------------------------------------------------------------------------- */
951 static irqreturn_t
mace_interrupt(int irq
, void *dev_id
)
953 struct net_device
*dev
= (struct net_device
*) dev_id
;
954 mace_private
*lp
= netdev_priv(dev
);
957 int IntrCnt
= MACE_MAX_IR_ITERATIONS
;
960 pr_debug("mace_interrupt(): irq 0x%X for unknown device.\n",
965 ioaddr
= dev
->base_addr
;
967 if (lp
->tx_irq_disabled
) {
969 (lp
->tx_irq_disabled
?
970 KERN_NOTICE
"%s: Interrupt with tx_irq_disabled "
971 "[isr=%02X, imr=%02X]\n":
972 KERN_NOTICE
"%s: Re-entering the interrupt handler "
973 "[isr=%02X, imr=%02X]\n"),
975 inb(ioaddr
+ AM2150_MACE_BASE
+ MACE_IR
),
976 inb(ioaddr
+ AM2150_MACE_BASE
+ MACE_IMR
)
978 /* WARNING: MACE_IR has been read! */
982 if (!netif_device_present(dev
)) {
983 pr_debug("%s: interrupt from dead card\n", dev
->name
);
988 /* WARNING: MACE_IR is a READ/CLEAR port! */
989 status
= inb(ioaddr
+ AM2150_MACE_BASE
+ MACE_IR
);
991 pr_debug("mace_interrupt: irq 0x%X status 0x%X.\n", irq
, status
);
993 if (status
& MACE_IR_RCVINT
) {
994 mace_rx(dev
, MACE_MAX_RX_ITERATIONS
);
997 if (status
& MACE_IR_XMTINT
) {
998 unsigned char fifofc
;
1000 unsigned char xmtfs
;
1002 fifofc
= inb(ioaddr
+ AM2150_MACE_BASE
+ MACE_FIFOFC
);
1003 if ((fifofc
& MACE_FIFOFC_XMTFC
)==0) {
1004 lp
->linux_stats
.tx_errors
++;
1005 outb(0xFF, ioaddr
+ AM2150_XMT_SKIP
);
1008 /* Transmit Retry Count (XMTRC, reg 4) */
1009 xmtrc
= inb(ioaddr
+ AM2150_MACE_BASE
+ MACE_XMTRC
);
1010 if (xmtrc
& MACE_XMTRC_EXDEF
) lp
->mace_stats
.exdef
++;
1011 lp
->mace_stats
.xmtrc
+= (xmtrc
& MACE_XMTRC_XMTRC
);
1014 (xmtfs
= inb(ioaddr
+ AM2150_MACE_BASE
+ MACE_XMTFS
)) &
1015 MACE_XMTFS_XMTSV
/* Transmit Status Valid */
1017 lp
->mace_stats
.xmtsv
++;
1019 if (xmtfs
& ~MACE_XMTFS_XMTSV
) {
1020 if (xmtfs
& MACE_XMTFS_UFLO
) {
1021 /* Underflow. Indicates that the Transmit FIFO emptied before
1022 the end of frame was reached. */
1023 lp
->mace_stats
.uflo
++;
1025 if (xmtfs
& MACE_XMTFS_LCOL
) {
1026 /* Late Collision */
1027 lp
->mace_stats
.lcol
++;
1029 if (xmtfs
& MACE_XMTFS_MORE
) {
1030 /* MORE than one retry was needed */
1031 lp
->mace_stats
.more
++;
1033 if (xmtfs
& MACE_XMTFS_ONE
) {
1034 /* Exactly ONE retry occurred */
1035 lp
->mace_stats
.one
++;
1037 if (xmtfs
& MACE_XMTFS_DEFER
) {
1038 /* Transmission was defered */
1039 lp
->mace_stats
.defer
++;
1041 if (xmtfs
& MACE_XMTFS_LCAR
) {
1042 /* Loss of carrier */
1043 lp
->mace_stats
.lcar
++;
1045 if (xmtfs
& MACE_XMTFS_RTRY
) {
1046 /* Retry error: transmit aborted after 16 attempts */
1047 lp
->mace_stats
.rtry
++;
1049 } /* if (xmtfs & ~MACE_XMTFS_XMTSV) */
1051 } /* if (xmtfs & MACE_XMTFS_XMTSV) */
1053 lp
->linux_stats
.tx_packets
++;
1054 lp
->tx_free_frames
++;
1055 netif_wake_queue(dev
);
1056 } /* if (status & MACE_IR_XMTINT) */
1058 if (status
& ~MACE_IMR_DEFAULT
& ~MACE_IR_RCVINT
& ~MACE_IR_XMTINT
) {
1059 if (status
& MACE_IR_JAB
) {
1060 /* Jabber Error. Excessive transmit duration (20-150ms). */
1061 lp
->mace_stats
.jab
++;
1063 if (status
& MACE_IR_BABL
) {
1064 /* Babble Error. >1518 bytes transmitted. */
1065 lp
->mace_stats
.babl
++;
1067 if (status
& MACE_IR_CERR
) {
1068 /* Collision Error. CERR indicates the absence of the
1069 Signal Quality Error Test message after a packet
1071 lp
->mace_stats
.cerr
++;
1073 if (status
& MACE_IR_RCVCCO
) {
1074 /* Receive Collision Count Overflow; */
1075 lp
->mace_stats
.rcvcco
++;
1077 if (status
& MACE_IR_RNTPCO
) {
1078 /* Runt Packet Count Overflow */
1079 lp
->mace_stats
.rntpco
++;
1081 if (status
& MACE_IR_MPCO
) {
1082 /* Missed Packet Count Overflow */
1083 lp
->mace_stats
.mpco
++;
1085 } /* if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) */
1087 } while ((status
& ~MACE_IMR_DEFAULT
) && (--IntrCnt
));
1090 } /* mace_interrupt */
1092 /* ----------------------------------------------------------------------------
1095 ---------------------------------------------------------------------------- */
1096 static int mace_rx(struct net_device
*dev
, unsigned char RxCnt
)
1098 mace_private
*lp
= netdev_priv(dev
);
1099 unsigned int ioaddr
= dev
->base_addr
;
1100 unsigned char rx_framecnt
;
1101 unsigned short rx_status
;
1104 ((rx_framecnt
= inb(ioaddr
+ AM2150_RCV_FRAME_COUNT
)) > 0) &&
1105 (rx_framecnt
<= 12) && /* rx_framecnt==0xFF if card is extracted. */
1108 rx_status
= inw(ioaddr
+ AM2150_RCV
);
1110 pr_debug("%s: in mace_rx(), framecnt 0x%X, rx_status"
1111 " 0x%X.\n", dev
->name
, rx_framecnt
, rx_status
);
1113 if (rx_status
& MACE_RCVFS_RCVSTS
) { /* Error, update stats. */
1114 lp
->linux_stats
.rx_errors
++;
1115 if (rx_status
& MACE_RCVFS_OFLO
) {
1116 lp
->mace_stats
.oflo
++;
1118 if (rx_status
& MACE_RCVFS_CLSN
) {
1119 lp
->mace_stats
.clsn
++;
1121 if (rx_status
& MACE_RCVFS_FRAM
) {
1122 lp
->mace_stats
.fram
++;
1124 if (rx_status
& MACE_RCVFS_FCS
) {
1125 lp
->mace_stats
.fcs
++;
1128 short pkt_len
= (rx_status
& ~MACE_RCVFS_RCVSTS
) - 4;
1129 /* Auto Strip is off, always subtract 4 */
1130 struct sk_buff
*skb
;
1132 lp
->mace_stats
.rfs_rntpc
+= inb(ioaddr
+ AM2150_RCV
);
1133 /* runt packet count */
1134 lp
->mace_stats
.rfs_rcvcc
+= inb(ioaddr
+ AM2150_RCV
);
1135 /* rcv collision count */
1137 pr_debug(" receiving packet size 0x%X rx_status"
1138 " 0x%X.\n", pkt_len
, rx_status
);
1140 skb
= dev_alloc_skb(pkt_len
+2);
1143 skb_reserve(skb
, 2);
1144 insw(ioaddr
+ AM2150_RCV
, skb_put(skb
, pkt_len
), pkt_len
>>1);
1146 *(skb_tail_pointer(skb
) - 1) = inb(ioaddr
+ AM2150_RCV
);
1147 skb
->protocol
= eth_type_trans(skb
, dev
);
1149 netif_rx(skb
); /* Send the packet to the upper (protocol) layers. */
1151 lp
->linux_stats
.rx_packets
++;
1152 lp
->linux_stats
.rx_bytes
+= pkt_len
;
1153 outb(0xFF, ioaddr
+ AM2150_RCV_NEXT
); /* skip to next frame */
1156 pr_debug("%s: couldn't allocate a sk_buff of size"
1157 " %d.\n", dev
->name
, pkt_len
);
1158 lp
->linux_stats
.rx_dropped
++;
1161 outb(0xFF, ioaddr
+ AM2150_RCV_NEXT
); /* skip to next frame */
1167 /* ----------------------------------------------------------------------------
1169 ---------------------------------------------------------------------------- */
1170 static void pr_linux_stats(struct net_device_stats
*pstats
)
1172 pr_debug("pr_linux_stats\n");
1173 pr_debug(" rx_packets=%-7ld tx_packets=%ld\n",
1174 (long)pstats
->rx_packets
, (long)pstats
->tx_packets
);
1175 pr_debug(" rx_errors=%-7ld tx_errors=%ld\n",
1176 (long)pstats
->rx_errors
, (long)pstats
->tx_errors
);
1177 pr_debug(" rx_dropped=%-7ld tx_dropped=%ld\n",
1178 (long)pstats
->rx_dropped
, (long)pstats
->tx_dropped
);
1179 pr_debug(" multicast=%-7ld collisions=%ld\n",
1180 (long)pstats
->multicast
, (long)pstats
->collisions
);
1182 pr_debug(" rx_length_errors=%-7ld rx_over_errors=%ld\n",
1183 (long)pstats
->rx_length_errors
, (long)pstats
->rx_over_errors
);
1184 pr_debug(" rx_crc_errors=%-7ld rx_frame_errors=%ld\n",
1185 (long)pstats
->rx_crc_errors
, (long)pstats
->rx_frame_errors
);
1186 pr_debug(" rx_fifo_errors=%-7ld rx_missed_errors=%ld\n",
1187 (long)pstats
->rx_fifo_errors
, (long)pstats
->rx_missed_errors
);
1189 pr_debug(" tx_aborted_errors=%-7ld tx_carrier_errors=%ld\n",
1190 (long)pstats
->tx_aborted_errors
, (long)pstats
->tx_carrier_errors
);
1191 pr_debug(" tx_fifo_errors=%-7ld tx_heartbeat_errors=%ld\n",
1192 (long)pstats
->tx_fifo_errors
, (long)pstats
->tx_heartbeat_errors
);
1193 pr_debug(" tx_window_errors=%ld\n",
1194 (long)pstats
->tx_window_errors
);
1195 } /* pr_linux_stats */
1197 /* ----------------------------------------------------------------------------
1199 ---------------------------------------------------------------------------- */
1200 static void pr_mace_stats(mace_statistics
*pstats
)
1202 pr_debug("pr_mace_stats\n");
1204 pr_debug(" xmtsv=%-7d uflo=%d\n",
1205 pstats
->xmtsv
, pstats
->uflo
);
1206 pr_debug(" lcol=%-7d more=%d\n",
1207 pstats
->lcol
, pstats
->more
);
1208 pr_debug(" one=%-7d defer=%d\n",
1209 pstats
->one
, pstats
->defer
);
1210 pr_debug(" lcar=%-7d rtry=%d\n",
1211 pstats
->lcar
, pstats
->rtry
);
1214 pr_debug(" exdef=%-7d xmtrc=%d\n",
1215 pstats
->exdef
, pstats
->xmtrc
);
1217 /* RFS1--Receive Status (RCVSTS) */
1218 pr_debug(" oflo=%-7d clsn=%d\n",
1219 pstats
->oflo
, pstats
->clsn
);
1220 pr_debug(" fram=%-7d fcs=%d\n",
1221 pstats
->fram
, pstats
->fcs
);
1223 /* RFS2--Runt Packet Count (RNTPC) */
1224 /* RFS3--Receive Collision Count (RCVCC) */
1225 pr_debug(" rfs_rntpc=%-7d rfs_rcvcc=%d\n",
1226 pstats
->rfs_rntpc
, pstats
->rfs_rcvcc
);
1229 pr_debug(" jab=%-7d babl=%d\n",
1230 pstats
->jab
, pstats
->babl
);
1231 pr_debug(" cerr=%-7d rcvcco=%d\n",
1232 pstats
->cerr
, pstats
->rcvcco
);
1233 pr_debug(" rntpco=%-7d mpco=%d\n",
1234 pstats
->rntpco
, pstats
->mpco
);
1237 pr_debug(" mpc=%d\n", pstats
->mpc
);
1240 pr_debug(" rntpc=%d\n", pstats
->rntpc
);
1243 pr_debug(" rcvcc=%d\n", pstats
->rcvcc
);
1245 } /* pr_mace_stats */
1247 /* ----------------------------------------------------------------------------
1249 Update statistics. We change to register window 1, so this
1250 should be run single-threaded if the device is active. This is
1251 expected to be a rare operation, and it's simpler for the rest
1252 of the driver to assume that window 0 is always valid rather
1253 than use a special window-state variable.
1255 oflo & uflo should _never_ occur since it would mean the Xilinx
1256 was not able to transfer data between the MACE FIFO and the
1257 card's SRAM fast enough. If this happens, something is
1258 seriously wrong with the hardware.
1259 ---------------------------------------------------------------------------- */
1260 static void update_stats(unsigned int ioaddr
, struct net_device
*dev
)
1262 mace_private
*lp
= netdev_priv(dev
);
1264 lp
->mace_stats
.rcvcc
+= mace_read(lp
, ioaddr
, MACE_RCVCC
);
1265 lp
->mace_stats
.rntpc
+= mace_read(lp
, ioaddr
, MACE_RNTPC
);
1266 lp
->mace_stats
.mpc
+= mace_read(lp
, ioaddr
, MACE_MPC
);
1267 /* At this point, mace_stats is fully updated for this call.
1268 We may now update the linux_stats. */
1270 /* The MACE has no equivalent for linux_stats field which are commented
1273 /* lp->linux_stats.multicast; */
1274 lp
->linux_stats
.collisions
=
1275 lp
->mace_stats
.rcvcco
* 256 + lp
->mace_stats
.rcvcc
;
1276 /* Collision: The MACE may retry sending a packet 15 times
1277 before giving up. The retry count is in XMTRC.
1278 Does each retry constitute a collision?
1279 If so, why doesn't the RCVCC record these collisions? */
1281 /* detailed rx_errors: */
1282 lp
->linux_stats
.rx_length_errors
=
1283 lp
->mace_stats
.rntpco
* 256 + lp
->mace_stats
.rntpc
;
1284 /* lp->linux_stats.rx_over_errors */
1285 lp
->linux_stats
.rx_crc_errors
= lp
->mace_stats
.fcs
;
1286 lp
->linux_stats
.rx_frame_errors
= lp
->mace_stats
.fram
;
1287 lp
->linux_stats
.rx_fifo_errors
= lp
->mace_stats
.oflo
;
1288 lp
->linux_stats
.rx_missed_errors
=
1289 lp
->mace_stats
.mpco
* 256 + lp
->mace_stats
.mpc
;
1291 /* detailed tx_errors */
1292 lp
->linux_stats
.tx_aborted_errors
= lp
->mace_stats
.rtry
;
1293 lp
->linux_stats
.tx_carrier_errors
= lp
->mace_stats
.lcar
;
1294 /* LCAR usually results from bad cabling. */
1295 lp
->linux_stats
.tx_fifo_errors
= lp
->mace_stats
.uflo
;
1296 lp
->linux_stats
.tx_heartbeat_errors
= lp
->mace_stats
.cerr
;
1297 /* lp->linux_stats.tx_window_errors; */
1298 } /* update_stats */
1300 /* ----------------------------------------------------------------------------
1302 Gathers ethernet statistics from the MACE chip.
1303 ---------------------------------------------------------------------------- */
1304 static struct net_device_stats
*mace_get_stats(struct net_device
*dev
)
1306 mace_private
*lp
= netdev_priv(dev
);
1308 update_stats(dev
->base_addr
, dev
);
1310 pr_debug("%s: updating the statistics.\n", dev
->name
);
1311 pr_linux_stats(&lp
->linux_stats
);
1312 pr_mace_stats(&lp
->mace_stats
);
1314 return &lp
->linux_stats
;
1315 } /* net_device_stats */
1317 /* ----------------------------------------------------------------------------
1319 Modified from Am79C90 data sheet.
1320 ---------------------------------------------------------------------------- */
1322 #ifdef BROKEN_MULTICAST
1324 static void updateCRC(int *CRC
, int bit
)
1331 }; /* CRC polynomial. poly[n] = coefficient of the x**n term of the
1332 CRC generator polynomial. */
1336 /* shift CRC and control bit (CRC[32]) */
1337 for (j
= 32; j
> 0; j
--)
1341 /* If bit XOR(control bit) = 1, set CRC = CRC XOR polynomial. */
1343 for (j
= 0; j
< 32; j
++)
1347 /* ----------------------------------------------------------------------------
1349 Build logical address filter.
1350 Modified from Am79C90 data sheet.
1353 ladrf: logical address filter (contents initialized to 0)
1354 adr: ethernet address
1355 ---------------------------------------------------------------------------- */
1356 static void BuildLAF(int *ladrf
, int *adr
)
1358 int CRC
[33]={1}; /* CRC register, 1 word/bit + extra control bit */
1360 int i
, byte
; /* temporary array indices */
1361 int hashcode
; /* the output object */
1365 for (byte
= 0; byte
< 6; byte
++)
1366 for (i
= 0; i
< 8; i
++)
1367 updateCRC(CRC
, (adr
[byte
] >> i
) & 1);
1370 for (i
= 0; i
< 6; i
++)
1371 hashcode
= (hashcode
<< 1) + CRC
[i
];
1373 byte
= hashcode
>> 3;
1374 ladrf
[byte
] |= (1 << (hashcode
& 7));
1378 printk(KERN_DEBUG
" adr =%pM\n", adr
);
1379 printk(KERN_DEBUG
" hashcode = %d(decimal), ladrf[0:63] =", hashcode
);
1380 for (i
= 0; i
< 8; i
++)
1381 printk(KERN_CONT
" %02X", ladrf
[i
]);
1382 printk(KERN_CONT
"\n");
1386 /* ----------------------------------------------------------------------------
1387 restore_multicast_list
1388 Restores the multicast filter for MACE chip to the last
1389 set_multicast_list() call.
1394 ---------------------------------------------------------------------------- */
1395 static void restore_multicast_list(struct net_device
*dev
)
1397 mace_private
*lp
= netdev_priv(dev
);
1398 int num_addrs
= lp
->multicast_num_addrs
;
1399 int *ladrf
= lp
->multicast_ladrf
;
1400 unsigned int ioaddr
= dev
->base_addr
;
1403 pr_debug("%s: restoring Rx mode to %d addresses.\n",
1404 dev
->name
, num_addrs
);
1406 if (num_addrs
> 0) {
1408 pr_debug("Attempt to restore multicast list detected.\n");
1410 mace_write(lp
, ioaddr
, MACE_IAC
, MACE_IAC_ADDRCHG
| MACE_IAC_LOGADDR
);
1411 /* Poll ADDRCHG bit */
1412 while (mace_read(lp
, ioaddr
, MACE_IAC
) & MACE_IAC_ADDRCHG
)
1414 /* Set LADRF register */
1415 for (i
= 0; i
< MACE_LADRF_LEN
; i
++)
1416 mace_write(lp
, ioaddr
, MACE_LADRF
, ladrf
[i
]);
1418 mace_write(lp
, ioaddr
, MACE_UTR
, MACE_UTR_RCVFCSE
| MACE_UTR_LOOP_EXTERNAL
);
1419 mace_write(lp
, ioaddr
, MACE_MACCC
, MACE_MACCC_ENXMT
| MACE_MACCC_ENRCV
);
1421 } else if (num_addrs
< 0) {
1423 /* Promiscuous mode: receive all packets */
1424 mace_write(lp
, ioaddr
, MACE_UTR
, MACE_UTR_LOOP_EXTERNAL
);
1425 mace_write(lp
, ioaddr
, MACE_MACCC
,
1426 MACE_MACCC_PROM
| MACE_MACCC_ENXMT
| MACE_MACCC_ENRCV
1432 mace_write(lp
, ioaddr
, MACE_UTR
, MACE_UTR_LOOP_EXTERNAL
);
1433 mace_write(lp
, ioaddr
, MACE_MACCC
, MACE_MACCC_ENXMT
| MACE_MACCC_ENRCV
);
1436 } /* restore_multicast_list */
1438 /* ----------------------------------------------------------------------------
1440 Set or clear the multicast filter for this adaptor.
1443 num_addrs == -1 Promiscuous mode, receive all packets
1444 num_addrs == 0 Normal mode, clear multicast list
1445 num_addrs > 0 Multicast mode, receive normal and MC packets, and do
1446 best-effort filtering.
1450 ---------------------------------------------------------------------------- */
1452 static void set_multicast_list(struct net_device
*dev
)
1454 mace_private
*lp
= netdev_priv(dev
);
1455 int adr
[ETHER_ADDR_LEN
] = {0}; /* Ethernet address */
1456 struct netdev_hw_addr
*ha
;
1461 if (netdev_mc_count(dev
) != old
) {
1462 old
= netdev_mc_count(dev
);
1463 pr_debug("%s: setting Rx mode to %d addresses.\n",
1469 /* Set multicast_num_addrs. */
1470 lp
->multicast_num_addrs
= netdev_mc_count(dev
);
1472 /* Set multicast_ladrf. */
1473 if (num_addrs
> 0) {
1474 /* Calculate multicast logical address filter */
1475 memset(lp
->multicast_ladrf
, 0, MACE_LADRF_LEN
);
1476 netdev_for_each_mc_addr(ha
, dev
) {
1477 memcpy(adr
, ha
->addr
, ETHER_ADDR_LEN
);
1478 BuildLAF(lp
->multicast_ladrf
, adr
);
1482 restore_multicast_list(dev
);
1484 } /* set_multicast_list */
1486 #endif /* BROKEN_MULTICAST */
1488 static void restore_multicast_list(struct net_device
*dev
)
1490 unsigned int ioaddr
= dev
->base_addr
;
1491 mace_private
*lp
= netdev_priv(dev
);
1493 pr_debug("%s: restoring Rx mode to %d addresses.\n", dev
->name
,
1494 lp
->multicast_num_addrs
);
1496 if (dev
->flags
& IFF_PROMISC
) {
1497 /* Promiscuous mode: receive all packets */
1498 mace_write(lp
,ioaddr
, MACE_UTR
, MACE_UTR_LOOP_EXTERNAL
);
1499 mace_write(lp
, ioaddr
, MACE_MACCC
,
1500 MACE_MACCC_PROM
| MACE_MACCC_ENXMT
| MACE_MACCC_ENRCV
1504 mace_write(lp
, ioaddr
, MACE_UTR
, MACE_UTR_LOOP_EXTERNAL
);
1505 mace_write(lp
, ioaddr
, MACE_MACCC
, MACE_MACCC_ENXMT
| MACE_MACCC_ENRCV
);
1507 } /* restore_multicast_list */
1509 static void set_multicast_list(struct net_device
*dev
)
1511 mace_private
*lp
= netdev_priv(dev
);
1516 if (netdev_mc_count(dev
) != old
) {
1517 old
= netdev_mc_count(dev
);
1518 pr_debug("%s: setting Rx mode to %d addresses.\n",
1524 lp
->multicast_num_addrs
= netdev_mc_count(dev
);
1525 restore_multicast_list(dev
);
1527 } /* set_multicast_list */
1529 static struct pcmcia_device_id nmclan_ids
[] = {
1530 PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Ethernet", 0x085a850b, 0x00b2e941),
1531 PCMCIA_DEVICE_PROD_ID12("Portable Add-ons", "Ethernet+", 0xebf1d60, 0xad673aaf),
1534 MODULE_DEVICE_TABLE(pcmcia
, nmclan_ids
);
1536 static struct pcmcia_driver nmclan_cs_driver
= {
1537 .owner
= THIS_MODULE
,
1539 .name
= "nmclan_cs",
1541 .probe
= nmclan_probe
,
1542 .remove
= nmclan_detach
,
1543 .id_table
= nmclan_ids
,
1544 .suspend
= nmclan_suspend
,
1545 .resume
= nmclan_resume
,
1548 static int __init
init_nmclan_cs(void)
1550 return pcmcia_register_driver(&nmclan_cs_driver
);
1553 static void __exit
exit_nmclan_cs(void)
1555 pcmcia_unregister_driver(&nmclan_cs_driver
);
1558 module_init(init_nmclan_cs
);
1559 module_exit(exit_nmclan_cs
);