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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* ----------------------------------------------------------------------------
2Linux 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
4
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.
8
9Written by Roger C. Pao <rpao@paonet.org>
10 Copyright 1995 Roger C. Pao
11 Linux 2.5 cleanups Copyright Red Hat 2003
12
13 This software may be used and distributed according to the terms of
14 the GNU General Public License.
15
16Ported to Linux 1.3.* network driver environment by
17 Matti Aarnio <mea@utu.fi>
18
19References
20
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
26
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>
33
34 The Linux client driver is based on the 3c589_cs.c client driver by
35 David Hinds.
36
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
39 by Donald Becker.
40
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.
43
44 Special thanks for testing and help in debugging this driver goes
45 to Ken Lesniak.
46
47-------------------------------------------------------------------------------
48Driver Notes and Issues
49-------------------------------------------------------------------------------
50
511. 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
54
552. 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.
59
603. If hot extraction does not work for you, use 'ifconfig eth0 down'
61 before extraction.
62
634. There is a bad slow-down problem in this driver.
64
655. Future: Multicast processing. In the meantime, do _not_ compile your
66 kernel with multicast ip enabled.
67
68-------------------------------------------------------------------------------
69History
70-------------------------------------------------------------------------------
71Log: nmclan_cs.c,v
Alan Cox113aa832008-10-13 19:01:08 -070072 * 2.5.75-ac1 2003/07/11 Alan Cox <alan@lxorguk.ukuu.org.uk>
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 * Fixed hang on card eject as we probe it
74 * Cleaned up to use new style locking.
75 *
76 * Revision 0.16 1995/07/01 06:42:17 rpao
77 * Bug fix: nmclan_reset() called CardServices incorrectly.
78 *
79 * Revision 0.15 1995/05/24 08:09:47 rpao
80 * Re-implement MULTI_TX dev->tbusy handling.
81 *
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.
86 *
87 * Revision 0.13 1995/05/18 05:56:34 rpao
88 * Statistics changes.
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.
91 *
92 * Revision 0.12 1995/05/14 00:12:23 rpao
93 * Statistics overhaul.
94 *
95
9695/05/13 rpao V0.10a
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.
10095/05/11 rpao V0.10
101 Multiple transmit request processing.
102 Modified statistics to use MACE counters where possible.
10395/05/10 rpao V0.09 Bug fix: Must use IO_DATA_PATH_WIDTH_AUTO.
104 *Released
10595/05/10 rpao V0.08
106 Bug fix: Make all non-exported functions private by using
107 static keyword.
108 Bug fix: Test IntrCnt _before_ reading MACE_IR.
10995/05/10 rpao V0.07 Statistics.
11095/05/09 rpao V0.06 Fix rx_framecnt problem by addition of PCIC wait states.
111
112---------------------------------------------------------------------------- */
113
Joe Perches636b8112010-08-12 12:22:51 +0000114#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116#define DRV_NAME "nmclan_cs"
117#define DRV_VERSION "0.16"
118
119
120/* ----------------------------------------------------------------------------
121Conditional Compilation Options
122---------------------------------------------------------------------------- */
123
124#define MULTI_TX 0
125#define RESET_ON_TIMEOUT 1
126#define TX_INTERRUPTABLE 1
127#define RESET_XILINX 0
128
129/* ----------------------------------------------------------------------------
130Include Files
131---------------------------------------------------------------------------- */
132
133#include <linux/module.h>
134#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135#include <linux/ptrace.h>
136#include <linux/slab.h>
137#include <linux/string.h>
138#include <linux/timer.h>
139#include <linux/interrupt.h>
140#include <linux/in.h>
141#include <linux/delay.h>
142#include <linux/ethtool.h>
143#include <linux/netdevice.h>
144#include <linux/etherdevice.h>
145#include <linux/skbuff.h>
146#include <linux/if_arp.h>
147#include <linux/ioport.h>
148#include <linux/bitops.h>
149
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150#include <pcmcia/cisreg.h>
151#include <pcmcia/cistpl.h>
152#include <pcmcia/ds.h>
153
Linus Torvalds7c0f6ba2016-12-24 11:46:01 -0800154#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155#include <asm/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156
157/* ----------------------------------------------------------------------------
158Defines
159---------------------------------------------------------------------------- */
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161#define MACE_LADRF_LEN 8
162 /* 8 bytes in Logical Address Filter */
163
164/* Loop Control Defines */
165#define MACE_MAX_IR_ITERATIONS 10
166#define MACE_MAX_RX_ITERATIONS 12
167 /*
168 TBD: Dean brought this up, and I assumed the hardware would
169 handle it:
170
171 If MACE_MAX_RX_ITERATIONS is > 1, rx_framecnt may still be
172 non-zero when the isr exits. We may not get another interrupt
173 to process the remaining packets for some time.
174 */
175
176/*
177The Am2150 has a Xilinx XC3042 field programmable gate array (FPGA)
178which manages the interface between the MACE and the PCMCIA bus. It
179also includes buffer management for the 32K x 8 SRAM to control up to
180four transmit and 12 receive frames at a time.
181*/
182#define AM2150_MAX_TX_FRAMES 4
183#define AM2150_MAX_RX_FRAMES 12
184
185/* Am2150 Ethernet Card I/O Mapping */
186#define AM2150_RCV 0x00
187#define AM2150_XMT 0x04
188#define AM2150_XMT_SKIP 0x09
189#define AM2150_RCV_NEXT 0x0A
190#define AM2150_RCV_FRAME_COUNT 0x0B
191#define AM2150_MACE_BANK 0x0C
192#define AM2150_MACE_BASE 0x10
193
194/* MACE Registers */
195#define MACE_RCVFIFO 0
196#define MACE_XMTFIFO 1
197#define MACE_XMTFC 2
198#define MACE_XMTFS 3
199#define MACE_XMTRC 4
200#define MACE_RCVFC 5
201#define MACE_RCVFS 6
202#define MACE_FIFOFC 7
203#define MACE_IR 8
204#define MACE_IMR 9
205#define MACE_PR 10
206#define MACE_BIUCC 11
207#define MACE_FIFOCC 12
208#define MACE_MACCC 13
209#define MACE_PLSCC 14
210#define MACE_PHYCC 15
211#define MACE_CHIPIDL 16
212#define MACE_CHIPIDH 17
213#define MACE_IAC 18
214/* Reserved */
215#define MACE_LADRF 20
216#define MACE_PADR 21
217/* Reserved */
218/* Reserved */
219#define MACE_MPC 24
220/* Reserved */
221#define MACE_RNTPC 26
222#define MACE_RCVCC 27
223/* Reserved */
224#define MACE_UTR 29
225#define MACE_RTR1 30
226#define MACE_RTR2 31
227
228/* MACE Bit Masks */
229#define MACE_XMTRC_EXDEF 0x80
230#define MACE_XMTRC_XMTRC 0x0F
231
232#define MACE_XMTFS_XMTSV 0x80
233#define MACE_XMTFS_UFLO 0x40
234#define MACE_XMTFS_LCOL 0x20
235#define MACE_XMTFS_MORE 0x10
236#define MACE_XMTFS_ONE 0x08
237#define MACE_XMTFS_DEFER 0x04
238#define MACE_XMTFS_LCAR 0x02
239#define MACE_XMTFS_RTRY 0x01
240
241#define MACE_RCVFS_RCVSTS 0xF000
242#define MACE_RCVFS_OFLO 0x8000
243#define MACE_RCVFS_CLSN 0x4000
244#define MACE_RCVFS_FRAM 0x2000
245#define MACE_RCVFS_FCS 0x1000
246
247#define MACE_FIFOFC_RCVFC 0xF0
248#define MACE_FIFOFC_XMTFC 0x0F
249
250#define MACE_IR_JAB 0x80
251#define MACE_IR_BABL 0x40
252#define MACE_IR_CERR 0x20
253#define MACE_IR_RCVCCO 0x10
254#define MACE_IR_RNTPCO 0x08
255#define MACE_IR_MPCO 0x04
256#define MACE_IR_RCVINT 0x02
257#define MACE_IR_XMTINT 0x01
258
259#define MACE_MACCC_PROM 0x80
260#define MACE_MACCC_DXMT2PD 0x40
261#define MACE_MACCC_EMBA 0x20
262#define MACE_MACCC_RESERVED 0x10
263#define MACE_MACCC_DRCVPA 0x08
264#define MACE_MACCC_DRCVBC 0x04
265#define MACE_MACCC_ENXMT 0x02
266#define MACE_MACCC_ENRCV 0x01
267
268#define MACE_PHYCC_LNKFL 0x80
269#define MACE_PHYCC_DLNKTST 0x40
270#define MACE_PHYCC_REVPOL 0x20
271#define MACE_PHYCC_DAPC 0x10
272#define MACE_PHYCC_LRT 0x08
273#define MACE_PHYCC_ASEL 0x04
274#define MACE_PHYCC_RWAKE 0x02
275#define MACE_PHYCC_AWAKE 0x01
276
277#define MACE_IAC_ADDRCHG 0x80
278#define MACE_IAC_PHYADDR 0x04
279#define MACE_IAC_LOGADDR 0x02
280
281#define MACE_UTR_RTRE 0x80
282#define MACE_UTR_RTRD 0x40
283#define MACE_UTR_RPA 0x20
284#define MACE_UTR_FCOLL 0x10
285#define MACE_UTR_RCVFCSE 0x08
286#define MACE_UTR_LOOP_INCL_MENDEC 0x06
287#define MACE_UTR_LOOP_NO_MENDEC 0x04
288#define MACE_UTR_LOOP_EXTERNAL 0x02
289#define MACE_UTR_LOOP_NONE 0x00
290#define MACE_UTR_RESERVED 0x01
291
292/* Switch MACE register bank (only 0 and 1 are valid) */
293#define MACEBANK(win_num) outb((win_num), ioaddr + AM2150_MACE_BANK)
294
295#define MACE_IMR_DEFAULT \
296 (0xFF - \
297 ( \
298 MACE_IR_CERR | \
299 MACE_IR_RCVCCO | \
300 MACE_IR_RNTPCO | \
301 MACE_IR_MPCO | \
302 MACE_IR_RCVINT | \
303 MACE_IR_XMTINT \
304 ) \
305 )
306#undef MACE_IMR_DEFAULT
307#define MACE_IMR_DEFAULT 0x00 /* New statistics handling: grab everything */
308
309#define TX_TIMEOUT ((400*HZ)/1000)
310
311/* ----------------------------------------------------------------------------
312Type Definitions
313---------------------------------------------------------------------------- */
314
315typedef struct _mace_statistics {
316 /* MACE_XMTFS */
317 int xmtsv;
318 int uflo;
319 int lcol;
320 int more;
321 int one;
322 int defer;
323 int lcar;
324 int rtry;
325
326 /* MACE_XMTRC */
327 int exdef;
328 int xmtrc;
329
330 /* RFS1--Receive Status (RCVSTS) */
331 int oflo;
332 int clsn;
333 int fram;
334 int fcs;
335
336 /* RFS2--Runt Packet Count (RNTPC) */
337 int rfs_rntpc;
338
339 /* RFS3--Receive Collision Count (RCVCC) */
340 int rfs_rcvcc;
341
342 /* MACE_IR */
343 int jab;
344 int babl;
345 int cerr;
346 int rcvcco;
347 int rntpco;
348 int mpco;
349
350 /* MACE_MPC */
351 int mpc;
352
353 /* MACE_RNTPC */
354 int rntpc;
355
356 /* MACE_RCVCC */
357 int rcvcc;
358} mace_statistics;
359
360typedef struct _mace_private {
Dominik Brodowskifd238232006-03-05 10:45:09 +0100361 struct pcmcia_device *p_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 mace_statistics mace_stats; /* MACE chip statistics counters */
363
364 /* restore_multicast_list() state variables */
365 int multicast_ladrf[MACE_LADRF_LEN]; /* Logical address filter */
366 int multicast_num_addrs;
367
368 char tx_free_frames; /* Number of free transmit frame buffers */
369 char tx_irq_disabled; /* MACE TX interrupt disabled */
370
371 spinlock_t bank_lock; /* Must be held if you step off bank 0 */
372} mace_private;
373
374/* ----------------------------------------------------------------------------
375Private Global Variables
376---------------------------------------------------------------------------- */
377
Arjan van de Venf71e1302006-03-03 21:33:57 -0500378static const char *if_names[]={
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 "Auto", "10baseT", "BNC",
380};
381
382/* ----------------------------------------------------------------------------
383Parameters
384 These are the parameters that can be set during loading with
385 'insmod'.
386---------------------------------------------------------------------------- */
387
388MODULE_DESCRIPTION("New Media PCMCIA ethernet driver");
389MODULE_LICENSE("GPL");
390
391#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
392
393/* 0=auto, 1=10baseT, 2 = 10base2, default=auto */
394INT_MODULE_PARM(if_port, 0);
395
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
397/* ----------------------------------------------------------------------------
398Function Prototypes
399---------------------------------------------------------------------------- */
400
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200401static int nmclan_config(struct pcmcia_device *link);
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200402static void nmclan_release(struct pcmcia_device *link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403
404static void nmclan_reset(struct net_device *dev);
405static int mace_config(struct net_device *dev, struct ifmap *map);
406static int mace_open(struct net_device *dev);
407static int mace_close(struct net_device *dev);
Stephen Hemmingerdbf02fa2009-08-31 19:50:49 +0000408static netdev_tx_t mace_start_xmit(struct sk_buff *skb,
409 struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410static void mace_tx_timeout(struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100411static irqreturn_t mace_interrupt(int irq, void *dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412static struct net_device_stats *mace_get_stats(struct net_device *dev);
413static int mace_rx(struct net_device *dev, unsigned char RxCnt);
414static void restore_multicast_list(struct net_device *dev);
415static void set_multicast_list(struct net_device *dev);
Jeff Garzik7282d492006-09-13 14:30:00 -0400416static const struct ethtool_ops netdev_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417
418
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100419static void nmclan_detach(struct pcmcia_device *p_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420
Stephen Hemminger28b18012009-03-20 19:36:05 +0000421static const struct net_device_ops mace_netdev_ops = {
422 .ndo_open = mace_open,
423 .ndo_stop = mace_close,
424 .ndo_start_xmit = mace_start_xmit,
425 .ndo_tx_timeout = mace_tx_timeout,
426 .ndo_set_config = mace_config,
427 .ndo_get_stats = mace_get_stats,
Jiri Pirkoafc4b132011-08-16 06:29:01 +0000428 .ndo_set_rx_mode = set_multicast_list,
Stephen Hemminger28b18012009-03-20 19:36:05 +0000429 .ndo_set_mac_address = eth_mac_addr,
430 .ndo_validate_addr = eth_validate_addr,
431};
432
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200433static int nmclan_probe(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434{
435 mace_private *lp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200438 dev_dbg(&link->dev, "nmclan_attach()\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439
440 /* Create new ethernet device */
441 dev = alloc_etherdev(sizeof(mace_private));
442 if (!dev)
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100443 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 lp = netdev_priv(dev);
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200445 lp->p_dev = link;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 link->priv = dev;
447
448 spin_lock_init(&lp->bank_lock);
Dominik Brodowski90abdc32010-07-24 17:23:51 +0200449 link->resource[0]->end = 32;
450 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
Dominik Brodowski1ac71e52010-07-29 19:27:09 +0200451 link->config_flags |= CONF_ENABLE_IRQ;
Dominik Brodowski7feabb62010-07-29 18:35:47 +0200452 link->config_index = 1;
453 link->config_regs = PRESENT_OPTION;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454
455 lp->tx_free_frames=AM2150_MAX_TX_FRAMES;
456
Stephen Hemminger28b18012009-03-20 19:36:05 +0000457 dev->netdev_ops = &mace_netdev_ops;
Wilfried Klaebe7ad24ea2014-05-11 00:12:32 +0000458 dev->ethtool_ops = &netdev_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459 dev->watchdog_timeo = TX_TIMEOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200461 return nmclan_config(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462} /* nmclan_attach */
463
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200464static void nmclan_detach(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465{
466 struct net_device *dev = link->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200468 dev_dbg(&link->dev, "nmclan_detach\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469
Dominik Brodowskic7c2fa02010-03-20 19:39:26 +0100470 unregister_netdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100472 nmclan_release(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 free_netdev(dev);
475} /* nmclan_detach */
476
477/* ----------------------------------------------------------------------------
478mace_read
479 Reads a MACE register. This is bank independent; however, the
480 caller must ensure that this call is not interruptable. We are
481 assuming that during normal operation, the MACE is always in
482 bank 0.
483---------------------------------------------------------------------------- */
Olof Johansson906da802008-02-04 22:27:35 -0800484static int mace_read(mace_private *lp, unsigned int ioaddr, int reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485{
486 int data = 0xFF;
487 unsigned long flags;
488
489 switch (reg >> 4) {
490 case 0: /* register 0-15 */
491 data = inb(ioaddr + AM2150_MACE_BASE + reg);
492 break;
493 case 1: /* register 16-31 */
494 spin_lock_irqsave(&lp->bank_lock, flags);
495 MACEBANK(1);
496 data = inb(ioaddr + AM2150_MACE_BASE + (reg & 0x0F));
497 MACEBANK(0);
498 spin_unlock_irqrestore(&lp->bank_lock, flags);
499 break;
500 }
Eric Dumazet807540b2010-09-23 05:40:09 +0000501 return data & 0xFF;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502} /* mace_read */
503
504/* ----------------------------------------------------------------------------
505mace_write
506 Writes to a MACE register. This is bank independent; however,
507 the caller must ensure that this call is not interruptable. We
508 are assuming that during normal operation, the MACE is always in
509 bank 0.
510---------------------------------------------------------------------------- */
Olof Johansson906da802008-02-04 22:27:35 -0800511static void mace_write(mace_private *lp, unsigned int ioaddr, int reg,
512 int data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513{
514 unsigned long flags;
515
516 switch (reg >> 4) {
517 case 0: /* register 0-15 */
518 outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + reg);
519 break;
520 case 1: /* register 16-31 */
521 spin_lock_irqsave(&lp->bank_lock, flags);
522 MACEBANK(1);
523 outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + (reg & 0x0F));
524 MACEBANK(0);
525 spin_unlock_irqrestore(&lp->bank_lock, flags);
526 break;
527 }
528} /* mace_write */
529
530/* ----------------------------------------------------------------------------
531mace_init
532 Resets the MACE chip.
533---------------------------------------------------------------------------- */
Olof Johansson906da802008-02-04 22:27:35 -0800534static int mace_init(mace_private *lp, unsigned int ioaddr, char *enet_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535{
536 int i;
537 int ct = 0;
538
539 /* MACE Software reset */
540 mace_write(lp, ioaddr, MACE_BIUCC, 1);
541 while (mace_read(lp, ioaddr, MACE_BIUCC) & 0x01) {
542 /* Wait for reset bit to be cleared automatically after <= 200ns */;
543 if(++ct > 500)
544 {
Joe Perches636b8112010-08-12 12:22:51 +0000545 pr_err("reset failed, card removed?\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546 return -1;
547 }
548 udelay(1);
549 }
550 mace_write(lp, ioaddr, MACE_BIUCC, 0);
551
552 /* The Am2150 requires that the MACE FIFOs operate in burst mode. */
553 mace_write(lp, ioaddr, MACE_FIFOCC, 0x0F);
554
555 mace_write(lp,ioaddr, MACE_RCVFC, 0); /* Disable Auto Strip Receive */
556 mace_write(lp, ioaddr, MACE_IMR, 0xFF); /* Disable all interrupts until _open */
557
558 /*
559 * Bit 2-1 PORTSEL[1-0] Port Select.
560 * 00 AUI/10Base-2
561 * 01 10Base-T
562 * 10 DAI Port (reserved in Am2150)
563 * 11 GPSI
564 * For this card, only the first two are valid.
565 * So, PLSCC should be set to
566 * 0x00 for 10Base-2
567 * 0x02 for 10Base-T
568 * Or just set ASEL in PHYCC below!
569 */
570 switch (if_port) {
571 case 1:
572 mace_write(lp, ioaddr, MACE_PLSCC, 0x02);
573 break;
574 case 2:
575 mace_write(lp, ioaddr, MACE_PLSCC, 0x00);
576 break;
577 default:
578 mace_write(lp, ioaddr, MACE_PHYCC, /* ASEL */ 4);
579 /* ASEL Auto Select. When set, the PORTSEL[1-0] bits are overridden,
580 and the MACE device will automatically select the operating media
581 interface port. */
582 break;
583 }
584
585 mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_PHYADDR);
586 /* Poll ADDRCHG bit */
587 ct = 0;
588 while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG)
589 {
590 if(++ ct > 500)
591 {
Joe Perches636b8112010-08-12 12:22:51 +0000592 pr_err("ADDRCHG timeout, card removed?\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593 return -1;
594 }
595 }
596 /* Set PADR register */
Joe Perches104bf3f2011-11-16 09:38:03 +0000597 for (i = 0; i < ETH_ALEN; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598 mace_write(lp, ioaddr, MACE_PADR, enet_addr[i]);
599
600 /* MAC Configuration Control Register should be written last */
601 /* Let set_multicast_list set this. */
602 /* mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); */
603 mace_write(lp, ioaddr, MACE_MACCC, 0x00);
604 return 0;
605} /* mace_init */
606
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200607static int nmclan_config(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609 struct net_device *dev = link->priv;
610 mace_private *lp = netdev_priv(dev);
Dominik Brodowskidddfbd82009-10-18 23:54:24 +0200611 u8 *buf;
612 size_t len;
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200613 int i, ret;
Olof Johansson906da802008-02-04 22:27:35 -0800614 unsigned int ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200616 dev_dbg(&link->dev, "nmclan_config\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617
Dominik Brodowski90abdc32010-07-24 17:23:51 +0200618 link->io_lines = 5;
619 ret = pcmcia_request_io(link);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200620 if (ret)
621 goto failed;
Jeff Kirsher5f5316f2014-09-18 02:33:41 -0700622 ret = pcmcia_request_irq(link, mace_interrupt);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200623 if (ret)
624 goto failed;
Dominik Brodowski1ac71e52010-07-29 19:27:09 +0200625 ret = pcmcia_enable_device(link);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200626 if (ret)
627 goto failed;
628
Dominik Brodowskieb141202010-03-07 12:21:16 +0100629 dev->irq = link->irq;
Dominik Brodowski9a017a92010-07-24 15:58:54 +0200630 dev->base_addr = link->resource[0]->start;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631
632 ioaddr = dev->base_addr;
633
634 /* Read the ethernet address from the CIS. */
Dominik Brodowskidddfbd82009-10-18 23:54:24 +0200635 len = pcmcia_get_tuple(link, 0x80, &buf);
Joe Perches104bf3f2011-11-16 09:38:03 +0000636 if (!buf || len < ETH_ALEN) {
Dominik Brodowskidddfbd82009-10-18 23:54:24 +0200637 kfree(buf);
638 goto failed;
639 }
Joe Perches104bf3f2011-11-16 09:38:03 +0000640 memcpy(dev->dev_addr, buf, ETH_ALEN);
Dominik Brodowskidddfbd82009-10-18 23:54:24 +0200641 kfree(buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642
643 /* Verify configuration by reading the MACE ID. */
644 {
645 char sig[2];
646
647 sig[0] = mace_read(lp, ioaddr, MACE_CHIPIDL);
648 sig[1] = mace_read(lp, ioaddr, MACE_CHIPIDH);
649 if ((sig[0] == 0x40) && ((sig[1] & 0x0F) == 0x09)) {
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200650 dev_dbg(&link->dev, "nmclan_cs configured: mace id=%x %x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 sig[0], sig[1]);
652 } else {
Joe Perches636b8112010-08-12 12:22:51 +0000653 pr_notice("mace id not found: %x %x should be 0x40 0x?9\n",
654 sig[0], sig[1]);
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200655 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656 }
657 }
658
659 if(mace_init(lp, ioaddr, dev->dev_addr) == -1)
660 goto failed;
661
662 /* The if_port symbol can be set when the module is loaded */
663 if (if_port <= 2)
664 dev->if_port = if_port;
665 else
Joe Perches636b8112010-08-12 12:22:51 +0000666 pr_notice("invalid if_port requested\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667
Dominik Brodowskidd2e5a12009-11-03 10:27:34 +0100668 SET_NETDEV_DEV(dev, &link->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669
670 i = register_netdev(dev);
671 if (i != 0) {
Joe Perches636b8112010-08-12 12:22:51 +0000672 pr_notice("register_netdev() failed\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 goto failed;
674 }
675
Joe Perches636b8112010-08-12 12:22:51 +0000676 netdev_info(dev, "nmclan: port %#3lx, irq %d, %s port, hw_addr %pM\n",
677 dev->base_addr, dev->irq, if_names[dev->if_port], dev->dev_addr);
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200678 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680failed:
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200681 nmclan_release(link);
682 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683} /* nmclan_config */
684
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200685static void nmclan_release(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686{
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200687 dev_dbg(&link->dev, "nmclan_release\n");
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200688 pcmcia_disable_device(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689}
690
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200691static int nmclan_suspend(struct pcmcia_device *link)
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100692{
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100693 struct net_device *dev = link->priv;
694
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100695 if (link->open)
Dominik Brodowski8661bb52006-03-02 00:02:33 +0100696 netif_device_detach(dev);
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100697
698 return 0;
699}
700
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200701static int nmclan_resume(struct pcmcia_device *link)
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100702{
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100703 struct net_device *dev = link->priv;
704
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100705 if (link->open) {
Dominik Brodowski8661bb52006-03-02 00:02:33 +0100706 nmclan_reset(dev);
707 netif_device_attach(dev);
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100708 }
709
710 return 0;
711}
712
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713
714/* ----------------------------------------------------------------------------
715nmclan_reset
716 Reset and restore all of the Xilinx and MACE registers.
717---------------------------------------------------------------------------- */
718static void nmclan_reset(struct net_device *dev)
719{
720 mace_private *lp = netdev_priv(dev);
721
722#if RESET_XILINX
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200723 struct pcmcia_device *link = &lp->link;
Dominik Brodowski1d5cc192010-07-24 12:23:21 +0200724 u8 OrigCorValue;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725
726 /* Save original COR value */
Dominik Brodowski1d5cc192010-07-24 12:23:21 +0200727 pcmcia_read_config_byte(link, CISREG_COR, &OrigCorValue);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728
729 /* Reset Xilinx */
Dominik Brodowski1d5cc192010-07-24 12:23:21 +0200730 dev_dbg(&link->dev, "nmclan_reset: OrigCorValue=0x%x, resetting...\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731 OrigCorValue);
Dominik Brodowski1d5cc192010-07-24 12:23:21 +0200732 pcmcia_write_config_byte(link, CISREG_COR, COR_SOFT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733 /* Need to wait for 20 ms for PCMCIA to finish reset. */
734
735 /* Restore original COR configuration index */
Dominik Brodowski1d5cc192010-07-24 12:23:21 +0200736 pcmcia_write_config_byte(link, CISREG_COR,
737 (COR_LEVEL_REQ | (OrigCorValue & COR_CONFIG_MASK)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 /* Xilinx is now completely reset along with the MACE chip. */
739 lp->tx_free_frames=AM2150_MAX_TX_FRAMES;
740
741#endif /* #if RESET_XILINX */
742
743 /* Xilinx is now completely reset along with the MACE chip. */
744 lp->tx_free_frames=AM2150_MAX_TX_FRAMES;
745
746 /* Reinitialize the MACE chip for operation. */
747 mace_init(lp, dev->base_addr, dev->dev_addr);
748 mace_write(lp, dev->base_addr, MACE_IMR, MACE_IMR_DEFAULT);
749
750 /* Restore the multicast list and enable TX and RX. */
751 restore_multicast_list(dev);
752} /* nmclan_reset */
753
754/* ----------------------------------------------------------------------------
755mace_config
756 [Someone tell me what this is supposed to do? Is if_port a defined
757 standard? If so, there should be defines to indicate 1=10Base-T,
758 2=10Base-2, etc. including limited automatic detection.]
759---------------------------------------------------------------------------- */
760static int mace_config(struct net_device *dev, struct ifmap *map)
761{
762 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
763 if (map->port <= 2) {
764 dev->if_port = map->port;
Joe Perches636b8112010-08-12 12:22:51 +0000765 netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766 } else
767 return -EINVAL;
768 }
769 return 0;
770} /* mace_config */
771
772/* ----------------------------------------------------------------------------
773mace_open
774 Open device driver.
775---------------------------------------------------------------------------- */
776static int mace_open(struct net_device *dev)
777{
Olof Johansson906da802008-02-04 22:27:35 -0800778 unsigned int ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779 mace_private *lp = netdev_priv(dev);
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200780 struct pcmcia_device *link = lp->p_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781
Dominik Brodowski9940ec32006-03-05 11:04:33 +0100782 if (!pcmcia_dev_present(link))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783 return -ENODEV;
784
785 link->open++;
786
787 MACEBANK(0);
788
789 netif_start_queue(dev);
790 nmclan_reset(dev);
791
792 return 0; /* Always succeed */
793} /* mace_open */
794
795/* ----------------------------------------------------------------------------
796mace_close
797 Closes device driver.
798---------------------------------------------------------------------------- */
799static int mace_close(struct net_device *dev)
800{
Olof Johansson906da802008-02-04 22:27:35 -0800801 unsigned int ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 mace_private *lp = netdev_priv(dev);
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200803 struct pcmcia_device *link = lp->p_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200805 dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700806
807 /* Mask off all interrupts from the MACE chip. */
808 outb(0xFF, ioaddr + AM2150_MACE_BASE + MACE_IMR);
809
810 link->open--;
811 netif_stop_queue(dev);
812
813 return 0;
814} /* mace_close */
815
816static void netdev_get_drvinfo(struct net_device *dev,
817 struct ethtool_drvinfo *info)
818{
Rick Jones33a5ba12011-11-15 14:59:53 +0000819 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
820 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
821 snprintf(info->bus_info, sizeof(info->bus_info),
822 "PCMCIA 0x%lx", dev->base_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823}
824
Jeff Garzik7282d492006-09-13 14:30:00 -0400825static const struct ethtool_ops netdev_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826 .get_drvinfo = netdev_get_drvinfo,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827};
828
829/* ----------------------------------------------------------------------------
830mace_start_xmit
831 This routine begins the packet transmit function. When completed,
832 it will generate a transmit interrupt.
833
834 According to /usr/src/linux/net/inet/dev.c, if _start_xmit
835 returns 0, the "packet is now solely the responsibility of the
836 driver." If _start_xmit returns non-zero, the "transmission
837 failed, put skb back into a list."
838---------------------------------------------------------------------------- */
839
840static void mace_tx_timeout(struct net_device *dev)
841{
842 mace_private *lp = netdev_priv(dev);
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200843 struct pcmcia_device *link = lp->p_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844
Joe Perches636b8112010-08-12 12:22:51 +0000845 netdev_notice(dev, "transmit timed out -- ");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846#if RESET_ON_TIMEOUT
Joe Perches636b8112010-08-12 12:22:51 +0000847 pr_cont("resetting card\n");
Dominik Brodowski994917f2008-08-31 15:20:26 +0200848 pcmcia_reset_card(link->socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849#else /* #if RESET_ON_TIMEOUT */
Joe Perches636b8112010-08-12 12:22:51 +0000850 pr_cont("NOT resetting card\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851#endif /* #if RESET_ON_TIMEOUT */
Florian Westphal860e9532016-05-03 16:33:13 +0200852 netif_trans_update(dev); /* prevent tx timeout */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853 netif_wake_queue(dev);
854}
855
Stephen Hemmingerdbf02fa2009-08-31 19:50:49 +0000856static netdev_tx_t mace_start_xmit(struct sk_buff *skb,
857 struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858{
859 mace_private *lp = netdev_priv(dev);
Olof Johansson906da802008-02-04 22:27:35 -0800860 unsigned int ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861
862 netif_stop_queue(dev);
863
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200864 pr_debug("%s: mace_start_xmit(length = %ld) called.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865 dev->name, (long)skb->len);
866
867#if (!TX_INTERRUPTABLE)
868 /* Disable MACE TX interrupts. */
869 outb(MACE_IMR_DEFAULT | MACE_IR_XMTINT,
870 ioaddr + AM2150_MACE_BASE + MACE_IMR);
871 lp->tx_irq_disabled=1;
872#endif /* #if (!TX_INTERRUPTABLE) */
873
874 {
875 /* This block must not be interrupted by another transmit request!
876 mace_tx_timeout will take care of timer-based retransmissions from
877 the upper layers. The interrupt handler is guaranteed never to
878 service a transmit interrupt while we are in here.
879 */
880
Tobias Klauser71ef3cb2017-04-07 10:17:32 +0200881 dev->stats.tx_bytes += skb->len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882 lp->tx_free_frames--;
883
884 /* WARNING: Write the _exact_ number of bytes written in the header! */
885 /* Put out the word header [must be an outw()] . . . */
886 outw(skb->len, ioaddr + AM2150_XMT);
887 /* . . . and the packet [may be any combination of outw() and outb()] */
888 outsw(ioaddr + AM2150_XMT, skb->data, skb->len >> 1);
889 if (skb->len & 1) {
890 /* Odd byte transfer */
891 outb(skb->data[skb->len-1], ioaddr + AM2150_XMT);
892 }
893
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894#if MULTI_TX
895 if (lp->tx_free_frames > 0)
896 netif_start_queue(dev);
897#endif /* #if MULTI_TX */
898 }
899
900#if (!TX_INTERRUPTABLE)
901 /* Re-enable MACE TX interrupts. */
902 lp->tx_irq_disabled=0;
903 outb(MACE_IMR_DEFAULT, ioaddr + AM2150_MACE_BASE + MACE_IMR);
904#endif /* #if (!TX_INTERRUPTABLE) */
905
906 dev_kfree_skb(skb);
907
Patrick McHardy6ed10652009-06-23 06:03:08 +0000908 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909} /* mace_start_xmit */
910
911/* ----------------------------------------------------------------------------
912mace_interrupt
913 The interrupt handler.
914---------------------------------------------------------------------------- */
David Howells7d12e782006-10-05 14:55:46 +0100915static irqreturn_t mace_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916{
917 struct net_device *dev = (struct net_device *) dev_id;
918 mace_private *lp = netdev_priv(dev);
Olof Johansson906da802008-02-04 22:27:35 -0800919 unsigned int ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920 int status;
921 int IntrCnt = MACE_MAX_IR_ITERATIONS;
922
923 if (dev == NULL) {
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200924 pr_debug("mace_interrupt(): irq 0x%X for unknown device.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 irq);
926 return IRQ_NONE;
927 }
928
Micah Gruberc196d802007-07-24 10:44:56 +0800929 ioaddr = dev->base_addr;
930
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931 if (lp->tx_irq_disabled) {
Joe Perches636b8112010-08-12 12:22:51 +0000932 const char *msg;
933 if (lp->tx_irq_disabled)
934 msg = "Interrupt with tx_irq_disabled";
935 else
936 msg = "Re-entering the interrupt handler";
937 netdev_notice(dev, "%s [isr=%02X, imr=%02X]\n",
938 msg,
939 inb(ioaddr + AM2150_MACE_BASE + MACE_IR),
940 inb(ioaddr + AM2150_MACE_BASE + MACE_IMR));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941 /* WARNING: MACE_IR has been read! */
942 return IRQ_NONE;
943 }
944
945 if (!netif_device_present(dev)) {
Joe Perches636b8112010-08-12 12:22:51 +0000946 netdev_dbg(dev, "interrupt from dead card\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947 return IRQ_NONE;
948 }
949
950 do {
951 /* WARNING: MACE_IR is a READ/CLEAR port! */
952 status = inb(ioaddr + AM2150_MACE_BASE + MACE_IR);
Arnd Bergmann96a30172015-01-28 15:15:04 +0100953 if (!(status & ~MACE_IMR_DEFAULT) && IntrCnt == MACE_MAX_IR_ITERATIONS)
954 return IRQ_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
Dominik Brodowskidd0fab52009-10-24 15:51:05 +0200956 pr_debug("mace_interrupt: irq 0x%X status 0x%X.\n", irq, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
958 if (status & MACE_IR_RCVINT) {
959 mace_rx(dev, MACE_MAX_RX_ITERATIONS);
960 }
961
962 if (status & MACE_IR_XMTINT) {
963 unsigned char fifofc;
964 unsigned char xmtrc;
965 unsigned char xmtfs;
966
967 fifofc = inb(ioaddr + AM2150_MACE_BASE + MACE_FIFOFC);
968 if ((fifofc & MACE_FIFOFC_XMTFC)==0) {
Tobias Klauser71ef3cb2017-04-07 10:17:32 +0200969 dev->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970 outb(0xFF, ioaddr + AM2150_XMT_SKIP);
971 }
972
973 /* Transmit Retry Count (XMTRC, reg 4) */
974 xmtrc = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTRC);
975 if (xmtrc & MACE_XMTRC_EXDEF) lp->mace_stats.exdef++;
976 lp->mace_stats.xmtrc += (xmtrc & MACE_XMTRC_XMTRC);
977
978 if (
979 (xmtfs = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTFS)) &
980 MACE_XMTFS_XMTSV /* Transmit Status Valid */
981 ) {
982 lp->mace_stats.xmtsv++;
983
984 if (xmtfs & ~MACE_XMTFS_XMTSV) {
985 if (xmtfs & MACE_XMTFS_UFLO) {
986 /* Underflow. Indicates that the Transmit FIFO emptied before
987 the end of frame was reached. */
988 lp->mace_stats.uflo++;
989 }
990 if (xmtfs & MACE_XMTFS_LCOL) {
991 /* Late Collision */
992 lp->mace_stats.lcol++;
993 }
994 if (xmtfs & MACE_XMTFS_MORE) {
995 /* MORE than one retry was needed */
996 lp->mace_stats.more++;
997 }
998 if (xmtfs & MACE_XMTFS_ONE) {
999 /* Exactly ONE retry occurred */
1000 lp->mace_stats.one++;
1001 }
1002 if (xmtfs & MACE_XMTFS_DEFER) {
1003 /* Transmission was defered */
1004 lp->mace_stats.defer++;
1005 }
1006 if (xmtfs & MACE_XMTFS_LCAR) {
1007 /* Loss of carrier */
1008 lp->mace_stats.lcar++;
1009 }
1010 if (xmtfs & MACE_XMTFS_RTRY) {
1011 /* Retry error: transmit aborted after 16 attempts */
1012 lp->mace_stats.rtry++;
1013 }
1014 } /* if (xmtfs & ~MACE_XMTFS_XMTSV) */
1015
1016 } /* if (xmtfs & MACE_XMTFS_XMTSV) */
1017
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001018 dev->stats.tx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019 lp->tx_free_frames++;
1020 netif_wake_queue(dev);
1021 } /* if (status & MACE_IR_XMTINT) */
1022
1023 if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) {
1024 if (status & MACE_IR_JAB) {
1025 /* Jabber Error. Excessive transmit duration (20-150ms). */
1026 lp->mace_stats.jab++;
1027 }
1028 if (status & MACE_IR_BABL) {
1029 /* Babble Error. >1518 bytes transmitted. */
1030 lp->mace_stats.babl++;
1031 }
1032 if (status & MACE_IR_CERR) {
1033 /* Collision Error. CERR indicates the absence of the
1034 Signal Quality Error Test message after a packet
1035 transmission. */
1036 lp->mace_stats.cerr++;
1037 }
1038 if (status & MACE_IR_RCVCCO) {
1039 /* Receive Collision Count Overflow; */
1040 lp->mace_stats.rcvcco++;
1041 }
1042 if (status & MACE_IR_RNTPCO) {
1043 /* Runt Packet Count Overflow */
1044 lp->mace_stats.rntpco++;
1045 }
1046 if (status & MACE_IR_MPCO) {
1047 /* Missed Packet Count Overflow */
1048 lp->mace_stats.mpco++;
1049 }
1050 } /* if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) */
1051
1052 } while ((status & ~MACE_IMR_DEFAULT) && (--IntrCnt));
1053
1054 return IRQ_HANDLED;
1055} /* mace_interrupt */
1056
1057/* ----------------------------------------------------------------------------
1058mace_rx
1059 Receives packets.
1060---------------------------------------------------------------------------- */
1061static int mace_rx(struct net_device *dev, unsigned char RxCnt)
1062{
1063 mace_private *lp = netdev_priv(dev);
Olof Johansson906da802008-02-04 22:27:35 -08001064 unsigned int ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 unsigned char rx_framecnt;
1066 unsigned short rx_status;
1067
1068 while (
1069 ((rx_framecnt = inb(ioaddr + AM2150_RCV_FRAME_COUNT)) > 0) &&
1070 (rx_framecnt <= 12) && /* rx_framecnt==0xFF if card is extracted. */
1071 (RxCnt--)
1072 ) {
1073 rx_status = inw(ioaddr + AM2150_RCV);
1074
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001075 pr_debug("%s: in mace_rx(), framecnt 0x%X, rx_status"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 " 0x%X.\n", dev->name, rx_framecnt, rx_status);
1077
1078 if (rx_status & MACE_RCVFS_RCVSTS) { /* Error, update stats. */
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001079 dev->stats.rx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080 if (rx_status & MACE_RCVFS_OFLO) {
1081 lp->mace_stats.oflo++;
1082 }
1083 if (rx_status & MACE_RCVFS_CLSN) {
1084 lp->mace_stats.clsn++;
1085 }
1086 if (rx_status & MACE_RCVFS_FRAM) {
1087 lp->mace_stats.fram++;
1088 }
1089 if (rx_status & MACE_RCVFS_FCS) {
1090 lp->mace_stats.fcs++;
1091 }
1092 } else {
1093 short pkt_len = (rx_status & ~MACE_RCVFS_RCVSTS) - 4;
1094 /* Auto Strip is off, always subtract 4 */
1095 struct sk_buff *skb;
1096
1097 lp->mace_stats.rfs_rntpc += inb(ioaddr + AM2150_RCV);
1098 /* runt packet count */
1099 lp->mace_stats.rfs_rcvcc += inb(ioaddr + AM2150_RCV);
1100 /* rcv collision count */
1101
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001102 pr_debug(" receiving packet size 0x%X rx_status"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103 " 0x%X.\n", pkt_len, rx_status);
1104
Pradeep A Dalvi1d266432012-02-05 02:49:09 +00001105 skb = netdev_alloc_skb(dev, pkt_len + 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106
1107 if (skb != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108 skb_reserve(skb, 2);
1109 insw(ioaddr + AM2150_RCV, skb_put(skb, pkt_len), pkt_len>>1);
1110 if (pkt_len & 1)
Arnaldo Carvalho de Melo27a884d2007-04-19 20:29:13 -07001111 *(skb_tail_pointer(skb) - 1) = inb(ioaddr + AM2150_RCV);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112 skb->protocol = eth_type_trans(skb, dev);
1113
1114 netif_rx(skb); /* Send the packet to the upper (protocol) layers. */
1115
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001116 dev->stats.rx_packets++;
1117 dev->stats.rx_bytes += pkt_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118 outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */
1119 continue;
1120 } else {
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001121 pr_debug("%s: couldn't allocate a sk_buff of size"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122 " %d.\n", dev->name, pkt_len);
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001123 dev->stats.rx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124 }
1125 }
1126 outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */
1127 } /* while */
1128
1129 return 0;
1130} /* mace_rx */
1131
1132/* ----------------------------------------------------------------------------
1133pr_linux_stats
1134---------------------------------------------------------------------------- */
1135static void pr_linux_stats(struct net_device_stats *pstats)
1136{
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001137 pr_debug("pr_linux_stats\n");
1138 pr_debug(" rx_packets=%-7ld tx_packets=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139 (long)pstats->rx_packets, (long)pstats->tx_packets);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001140 pr_debug(" rx_errors=%-7ld tx_errors=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001141 (long)pstats->rx_errors, (long)pstats->tx_errors);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001142 pr_debug(" rx_dropped=%-7ld tx_dropped=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143 (long)pstats->rx_dropped, (long)pstats->tx_dropped);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001144 pr_debug(" multicast=%-7ld collisions=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001145 (long)pstats->multicast, (long)pstats->collisions);
1146
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001147 pr_debug(" rx_length_errors=%-7ld rx_over_errors=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148 (long)pstats->rx_length_errors, (long)pstats->rx_over_errors);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001149 pr_debug(" rx_crc_errors=%-7ld rx_frame_errors=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150 (long)pstats->rx_crc_errors, (long)pstats->rx_frame_errors);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001151 pr_debug(" rx_fifo_errors=%-7ld rx_missed_errors=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152 (long)pstats->rx_fifo_errors, (long)pstats->rx_missed_errors);
1153
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001154 pr_debug(" tx_aborted_errors=%-7ld tx_carrier_errors=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155 (long)pstats->tx_aborted_errors, (long)pstats->tx_carrier_errors);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001156 pr_debug(" tx_fifo_errors=%-7ld tx_heartbeat_errors=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157 (long)pstats->tx_fifo_errors, (long)pstats->tx_heartbeat_errors);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001158 pr_debug(" tx_window_errors=%ld\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159 (long)pstats->tx_window_errors);
1160} /* pr_linux_stats */
1161
1162/* ----------------------------------------------------------------------------
1163pr_mace_stats
1164---------------------------------------------------------------------------- */
1165static void pr_mace_stats(mace_statistics *pstats)
1166{
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001167 pr_debug("pr_mace_stats\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001169 pr_debug(" xmtsv=%-7d uflo=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170 pstats->xmtsv, pstats->uflo);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001171 pr_debug(" lcol=%-7d more=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172 pstats->lcol, pstats->more);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001173 pr_debug(" one=%-7d defer=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174 pstats->one, pstats->defer);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001175 pr_debug(" lcar=%-7d rtry=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176 pstats->lcar, pstats->rtry);
1177
1178 /* MACE_XMTRC */
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001179 pr_debug(" exdef=%-7d xmtrc=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180 pstats->exdef, pstats->xmtrc);
1181
1182 /* RFS1--Receive Status (RCVSTS) */
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001183 pr_debug(" oflo=%-7d clsn=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184 pstats->oflo, pstats->clsn);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001185 pr_debug(" fram=%-7d fcs=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186 pstats->fram, pstats->fcs);
1187
1188 /* RFS2--Runt Packet Count (RNTPC) */
1189 /* RFS3--Receive Collision Count (RCVCC) */
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001190 pr_debug(" rfs_rntpc=%-7d rfs_rcvcc=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191 pstats->rfs_rntpc, pstats->rfs_rcvcc);
1192
1193 /* MACE_IR */
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001194 pr_debug(" jab=%-7d babl=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 pstats->jab, pstats->babl);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001196 pr_debug(" cerr=%-7d rcvcco=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197 pstats->cerr, pstats->rcvcco);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001198 pr_debug(" rntpco=%-7d mpco=%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199 pstats->rntpco, pstats->mpco);
1200
1201 /* MACE_MPC */
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001202 pr_debug(" mpc=%d\n", pstats->mpc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203
1204 /* MACE_RNTPC */
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001205 pr_debug(" rntpc=%d\n", pstats->rntpc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206
1207 /* MACE_RCVCC */
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001208 pr_debug(" rcvcc=%d\n", pstats->rcvcc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209
1210} /* pr_mace_stats */
1211
1212/* ----------------------------------------------------------------------------
1213update_stats
1214 Update statistics. We change to register window 1, so this
1215 should be run single-threaded if the device is active. This is
1216 expected to be a rare operation, and it's simpler for the rest
1217 of the driver to assume that window 0 is always valid rather
1218 than use a special window-state variable.
1219
1220 oflo & uflo should _never_ occur since it would mean the Xilinx
1221 was not able to transfer data between the MACE FIFO and the
1222 card's SRAM fast enough. If this happens, something is
1223 seriously wrong with the hardware.
1224---------------------------------------------------------------------------- */
Olof Johansson906da802008-02-04 22:27:35 -08001225static void update_stats(unsigned int ioaddr, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226{
1227 mace_private *lp = netdev_priv(dev);
1228
1229 lp->mace_stats.rcvcc += mace_read(lp, ioaddr, MACE_RCVCC);
1230 lp->mace_stats.rntpc += mace_read(lp, ioaddr, MACE_RNTPC);
1231 lp->mace_stats.mpc += mace_read(lp, ioaddr, MACE_MPC);
1232 /* At this point, mace_stats is fully updated for this call.
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001233 We may now update the netdev stats. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001234
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001235 /* The MACE has no equivalent for netdev stats field which are commented
Linus Torvalds1da177e2005-04-16 15:20:36 -07001236 out. */
1237
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001238 /* dev->stats.multicast; */
1239 dev->stats.collisions =
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240 lp->mace_stats.rcvcco * 256 + lp->mace_stats.rcvcc;
1241 /* Collision: The MACE may retry sending a packet 15 times
1242 before giving up. The retry count is in XMTRC.
1243 Does each retry constitute a collision?
1244 If so, why doesn't the RCVCC record these collisions? */
1245
1246 /* detailed rx_errors: */
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001247 dev->stats.rx_length_errors =
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248 lp->mace_stats.rntpco * 256 + lp->mace_stats.rntpc;
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001249 /* dev->stats.rx_over_errors */
1250 dev->stats.rx_crc_errors = lp->mace_stats.fcs;
1251 dev->stats.rx_frame_errors = lp->mace_stats.fram;
1252 dev->stats.rx_fifo_errors = lp->mace_stats.oflo;
1253 dev->stats.rx_missed_errors =
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254 lp->mace_stats.mpco * 256 + lp->mace_stats.mpc;
1255
1256 /* detailed tx_errors */
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001257 dev->stats.tx_aborted_errors = lp->mace_stats.rtry;
1258 dev->stats.tx_carrier_errors = lp->mace_stats.lcar;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 /* LCAR usually results from bad cabling. */
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001260 dev->stats.tx_fifo_errors = lp->mace_stats.uflo;
1261 dev->stats.tx_heartbeat_errors = lp->mace_stats.cerr;
1262 /* dev->stats.tx_window_errors; */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263} /* update_stats */
1264
1265/* ----------------------------------------------------------------------------
1266mace_get_stats
1267 Gathers ethernet statistics from the MACE chip.
1268---------------------------------------------------------------------------- */
1269static struct net_device_stats *mace_get_stats(struct net_device *dev)
1270{
1271 mace_private *lp = netdev_priv(dev);
1272
1273 update_stats(dev->base_addr, dev);
1274
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001275 pr_debug("%s: updating the statistics.\n", dev->name);
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001276 pr_linux_stats(&dev->stats);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277 pr_mace_stats(&lp->mace_stats);
1278
Tobias Klauser71ef3cb2017-04-07 10:17:32 +02001279 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280} /* net_device_stats */
1281
1282/* ----------------------------------------------------------------------------
1283updateCRC
1284 Modified from Am79C90 data sheet.
1285---------------------------------------------------------------------------- */
1286
1287#ifdef BROKEN_MULTICAST
1288
1289static void updateCRC(int *CRC, int bit)
1290{
Joe Perches215faf92010-12-21 02:16:10 -08001291 static const int poly[]={
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292 1,1,1,0, 1,1,0,1,
1293 1,0,1,1, 1,0,0,0,
1294 1,0,0,0, 0,0,1,1,
1295 0,0,1,0, 0,0,0,0
1296 }; /* CRC polynomial. poly[n] = coefficient of the x**n term of the
1297 CRC generator polynomial. */
1298
1299 int j;
1300
1301 /* shift CRC and control bit (CRC[32]) */
1302 for (j = 32; j > 0; j--)
1303 CRC[j] = CRC[j-1];
1304 CRC[0] = 0;
1305
1306 /* If bit XOR(control bit) = 1, set CRC = CRC XOR polynomial. */
1307 if (bit ^ CRC[32])
1308 for (j = 0; j < 32; j++)
1309 CRC[j] ^= poly[j];
1310} /* updateCRC */
1311
1312/* ----------------------------------------------------------------------------
1313BuildLAF
1314 Build logical address filter.
1315 Modified from Am79C90 data sheet.
1316
1317Input
1318 ladrf: logical address filter (contents initialized to 0)
1319 adr: ethernet address
1320---------------------------------------------------------------------------- */
1321static void BuildLAF(int *ladrf, int *adr)
1322{
1323 int CRC[33]={1}; /* CRC register, 1 word/bit + extra control bit */
1324
1325 int i, byte; /* temporary array indices */
1326 int hashcode; /* the output object */
1327
1328 CRC[32]=0;
1329
1330 for (byte = 0; byte < 6; byte++)
1331 for (i = 0; i < 8; i++)
1332 updateCRC(CRC, (adr[byte] >> i) & 1);
1333
1334 hashcode = 0;
1335 for (i = 0; i < 6; i++)
1336 hashcode = (hashcode << 1) + CRC[i];
1337
1338 byte = hashcode >> 3;
1339 ladrf[byte] |= (1 << (hashcode & 7));
1340
1341#ifdef PCMCIA_DEBUG
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001342 if (0)
Joe Perchesad361c92009-07-06 13:05:40 -07001343 printk(KERN_DEBUG " adr =%pM\n", adr);
1344 printk(KERN_DEBUG " hashcode = %d(decimal), ladrf[0:63] =", hashcode);
1345 for (i = 0; i < 8; i++)
Joe Perches636b8112010-08-12 12:22:51 +00001346 pr_cont(" %02X", ladrf[i]);
1347 pr_cont("\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348#endif
1349} /* BuildLAF */
1350
1351/* ----------------------------------------------------------------------------
1352restore_multicast_list
1353 Restores the multicast filter for MACE chip to the last
1354 set_multicast_list() call.
1355
1356Input
1357 multicast_num_addrs
1358 multicast_ladrf[]
1359---------------------------------------------------------------------------- */
1360static void restore_multicast_list(struct net_device *dev)
1361{
1362 mace_private *lp = netdev_priv(dev);
1363 int num_addrs = lp->multicast_num_addrs;
1364 int *ladrf = lp->multicast_ladrf;
Olof Johansson906da802008-02-04 22:27:35 -08001365 unsigned int ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366 int i;
1367
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001368 pr_debug("%s: restoring Rx mode to %d addresses.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369 dev->name, num_addrs);
1370
1371 if (num_addrs > 0) {
1372
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001373 pr_debug("Attempt to restore multicast list detected.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374
1375 mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_LOGADDR);
1376 /* Poll ADDRCHG bit */
1377 while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG)
1378 ;
1379 /* Set LADRF register */
1380 for (i = 0; i < MACE_LADRF_LEN; i++)
1381 mace_write(lp, ioaddr, MACE_LADRF, ladrf[i]);
1382
1383 mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_RCVFCSE | MACE_UTR_LOOP_EXTERNAL);
1384 mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV);
1385
1386 } else if (num_addrs < 0) {
1387
1388 /* Promiscuous mode: receive all packets */
1389 mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
1390 mace_write(lp, ioaddr, MACE_MACCC,
1391 MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV
1392 );
1393
1394 } else {
1395
1396 /* Normal mode */
1397 mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
1398 mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV);
1399
1400 }
1401} /* restore_multicast_list */
1402
1403/* ----------------------------------------------------------------------------
1404set_multicast_list
1405 Set or clear the multicast filter for this adaptor.
1406
1407Input
1408 num_addrs == -1 Promiscuous mode, receive all packets
1409 num_addrs == 0 Normal mode, clear multicast list
1410 num_addrs > 0 Multicast mode, receive normal and MC packets, and do
1411 best-effort filtering.
1412Output
1413 multicast_num_addrs
1414 multicast_ladrf[]
1415---------------------------------------------------------------------------- */
1416
1417static void set_multicast_list(struct net_device *dev)
1418{
1419 mace_private *lp = netdev_priv(dev);
Joe Perches104bf3f2011-11-16 09:38:03 +00001420 int adr[ETH_ALEN] = {0}; /* Ethernet address */
Jiri Pirko22bedad32010-04-01 21:22:57 +00001421 struct netdev_hw_addr *ha;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422
1423#ifdef PCMCIA_DEBUG
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001424 {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001425 static int old;
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00001426 if (netdev_mc_count(dev) != old) {
1427 old = netdev_mc_count(dev);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001428 pr_debug("%s: setting Rx mode to %d addresses.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001429 dev->name, old);
1430 }
1431 }
1432#endif
1433
1434 /* Set multicast_num_addrs. */
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00001435 lp->multicast_num_addrs = netdev_mc_count(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436
1437 /* Set multicast_ladrf. */
1438 if (num_addrs > 0) {
1439 /* Calculate multicast logical address filter */
1440 memset(lp->multicast_ladrf, 0, MACE_LADRF_LEN);
Jiri Pirko22bedad32010-04-01 21:22:57 +00001441 netdev_for_each_mc_addr(ha, dev) {
Joe Perches104bf3f2011-11-16 09:38:03 +00001442 memcpy(adr, ha->addr, ETH_ALEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 BuildLAF(lp->multicast_ladrf, adr);
1444 }
1445 }
1446
1447 restore_multicast_list(dev);
1448
1449} /* set_multicast_list */
1450
1451#endif /* BROKEN_MULTICAST */
1452
1453static void restore_multicast_list(struct net_device *dev)
1454{
Olof Johansson906da802008-02-04 22:27:35 -08001455 unsigned int ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 mace_private *lp = netdev_priv(dev);
1457
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001458 pr_debug("%s: restoring Rx mode to %d addresses.\n", dev->name,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459 lp->multicast_num_addrs);
1460
1461 if (dev->flags & IFF_PROMISC) {
1462 /* Promiscuous mode: receive all packets */
1463 mace_write(lp,ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
1464 mace_write(lp, ioaddr, MACE_MACCC,
1465 MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV
1466 );
1467 } else {
1468 /* Normal mode */
1469 mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
1470 mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV);
1471 }
1472} /* restore_multicast_list */
1473
1474static void set_multicast_list(struct net_device *dev)
1475{
1476 mace_private *lp = netdev_priv(dev);
1477
1478#ifdef PCMCIA_DEBUG
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001479 {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 static int old;
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00001481 if (netdev_mc_count(dev) != old) {
1482 old = netdev_mc_count(dev);
Dominik Brodowskidd0fab52009-10-24 15:51:05 +02001483 pr_debug("%s: setting Rx mode to %d addresses.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484 dev->name, old);
1485 }
1486 }
1487#endif
1488
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00001489 lp->multicast_num_addrs = netdev_mc_count(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490 restore_multicast_list(dev);
1491
1492} /* set_multicast_list */
1493
Joe Perches25f8f542011-05-03 19:29:01 -07001494static const struct pcmcia_device_id nmclan_ids[] = {
Dominik Brodowskia58e26c2005-06-27 16:28:23 -07001495 PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Ethernet", 0x085a850b, 0x00b2e941),
Komurod277ad02005-07-28 01:07:24 -07001496 PCMCIA_DEVICE_PROD_ID12("Portable Add-ons", "Ethernet+", 0xebf1d60, 0xad673aaf),
Dominik Brodowskia58e26c2005-06-27 16:28:23 -07001497 PCMCIA_DEVICE_NULL,
1498};
1499MODULE_DEVICE_TABLE(pcmcia, nmclan_ids);
1500
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501static struct pcmcia_driver nmclan_cs_driver = {
1502 .owner = THIS_MODULE,
Dominik Brodowski2e9b9812010-08-08 11:36:26 +02001503 .name = "nmclan_cs",
Dominik Brodowski15b99ac2006-03-31 17:26:06 +02001504 .probe = nmclan_probe,
Dominik Brodowskicc3b4862005-11-14 21:23:14 +01001505 .remove = nmclan_detach,
Dominik Brodowskia58e26c2005-06-27 16:28:23 -07001506 .id_table = nmclan_ids,
Dominik Brodowski98e4c282005-11-14 21:21:18 +01001507 .suspend = nmclan_suspend,
1508 .resume = nmclan_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509};
H Hartley Sweetenfdd3f292013-03-06 11:27:43 -07001510module_pcmcia_driver(nmclan_cs_driver);