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pcmcia: pcmcia_config_loop() ConfigIndex unification
[linux-2.6-block.git] / drivers / net / pcmcia / smc91c92_cs.c
CommitLineData
1da177e4
LT		 1/*======================================================================
2
3 A PCMCIA ethernet driver for SMC91c92-based cards.
4
5 This driver supports Megahertz PCMCIA ethernet cards; and
6 Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem
7 multifunction cards.
8
9 Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
10
11 smc91c92_cs.c 1.122 2002/10/25 06:26:39
12
13 This driver contains code written by Donald Becker
14 (becker@scyld.com), Rowan Hughes (x-csrdh@jcu.edu.au),
15 David Hinds (dahinds@users.sourceforge.net), and Erik Stahlman
16 (erik@vt.edu). Donald wrote the SMC 91c92 code using parts of
17 Erik's SMC 91c94 driver. Rowan wrote a similar driver, and I've
18 incorporated some parts of his driver here. I (Dave) wrote most
19 of the PCMCIA glue code, and the Ositech support code. Kelly
20 Stephens (kstephen@holli.com) added support for the Motorola
21 Mariner, with help from Allen Brost.
22
23 This software may be used and distributed according to the terms of
24 the GNU General Public License, incorporated herein by reference.
25
26======================================================================*/
27
28#include <linux/module.h>
29#include <linux/kernel.h>
30#include <linux/init.h>
31#include <linux/slab.h>
32#include <linux/string.h>
33#include <linux/timer.h>
34#include <linux/interrupt.h>
35#include <linux/delay.h>
36#include <linux/crc32.h>
37#include <linux/netdevice.h>
38#include <linux/etherdevice.h>
39#include <linux/skbuff.h>
40#include <linux/if_arp.h>
41#include <linux/ioport.h>
42#include <linux/ethtool.h>
43#include <linux/mii.h>
4851d3aa 44#include <linux/jiffies.h>
1da177e4 45
1da177e4
LT		 46#include <pcmcia/cs_types.h>
47#include <pcmcia/cs.h>
48#include <pcmcia/cistpl.h>
49#include <pcmcia/cisreg.h>
50#include <pcmcia/ciscode.h>
51#include <pcmcia/ds.h>
50db3fdb 52#include <pcmcia/ss.h>
1da177e4
LT		 53
54#include <asm/io.h>
55#include <asm/system.h>
56#include <asm/uaccess.h>
57
58/* Ositech Seven of Diamonds firmware */
59#include "ositech.h"
60
61/*====================================================================*/
62
f71e1309 63static const char *if_names[] = { "auto", "10baseT", "10base2"};
1da177e4
LT		 64
65/* Module parameters */
66
67MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
68MODULE_LICENSE("GPL");
69
70#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
71
72/*
73 Transceiver/media type.
74 0 = auto
75 1 = 10baseT (and autoselect if #define AUTOSELECT),
76 2 = AUI/10base2,
77*/
78INT_MODULE_PARM(if_port, 0);
79
80#ifdef PCMCIA_DEBUG
81INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
82static const char *version =
d5b20697 83"smc91c92_cs.c 1.123 2006/11/09 Donald Becker, becker@scyld.com.\n";
1da177e4
LT		 84#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
85#else
86#define DEBUG(n, args...)
87#endif
88
89#define DRV_NAME "smc91c92_cs"
d5b20697 90#define DRV_VERSION "1.123"
1da177e4
LT		 91
92/*====================================================================*/
93
94/* Operational parameter that usually are not changed. */
95
96/* Time in jiffies before concluding Tx hung */
97#define TX_TIMEOUT ((400*HZ)/1000)
98
99/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
100#define INTR_WORK 4
101
102/* Times to check the check the chip before concluding that it doesn't
103 currently have room for another Tx packet. */
104#define MEMORY_WAIT_TIME 8
105
1da177e4 106struct smc_private {
fd238232 107 struct pcmcia_device *p_dev;
1da177e4
LT		 108 spinlock_t lock;
109 u_short manfid;
110 u_short cardid;
111 struct net_device_stats stats;
112 dev_node_t node;
113 struct sk_buff *saved_skb;
114 int packets_waiting;
115 void __iomem *base;
116 u_short cfg;
117 struct timer_list media;
118 int watchdog, tx_err;
119 u_short media_status;
120 u_short fast_poll;
121 u_short link_status;
122 struct mii_if_info mii_if;
123 int duplex;
124 int rx_ovrn;
125};
126
4638aef4
YR		 127struct smc_cfg_mem {
128 tuple_t tuple;
129 cisparse_t parse;
130 u_char buf[255];
131};
132
1da177e4
LT		 133/* Special definitions for Megahertz multifunction cards */
134#define MEGAHERTZ_ISR 0x0380
135
136/* Special function registers for Motorola Mariner */
137#define MOT_LAN 0x0000
138#define MOT_UART 0x0020
139#define MOT_EEPROM 0x20
140
141#define MOT_NORMAL \
142(COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
143
144/* Special function registers for Ositech cards */
145#define OSITECH_AUI_CTL 0x0c
146#define OSITECH_PWRDOWN 0x0d
147#define OSITECH_RESET 0x0e
148#define OSITECH_ISR 0x0f
149#define OSITECH_AUI_PWR 0x0c
150#define OSITECH_RESET_ISR 0x0e
151
152#define OSI_AUI_PWR 0x40
153#define OSI_LAN_PWRDOWN 0x02
154#define OSI_MODEM_PWRDOWN 0x01
155#define OSI_LAN_RESET 0x02
156#define OSI_MODEM_RESET 0x01
157
158/* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
159#define BANK_SELECT 14 /* Window select register. */
160#define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
161
162/* Bank 0 registers. */
163#define TCR 0 /* transmit control register */
164#define TCR_CLEAR 0 /* do NOTHING */
165#define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
166#define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
167#define TCR_MONCSN 0x0400 /* Monitor Carrier. */
168#define TCR_FDUPLX 0x0800 /* Full duplex mode. */
169#define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
170
171#define EPH 2 /* Ethernet Protocol Handler report. */
172#define EPH_TX_SUC 0x0001
173#define EPH_SNGLCOL 0x0002
174#define EPH_MULCOL 0x0004
175#define EPH_LTX_MULT 0x0008
176#define EPH_16COL 0x0010
177#define EPH_SQET 0x0020
178#define EPH_LTX_BRD 0x0040
179#define EPH_TX_DEFR 0x0080
180#define EPH_LAT_COL 0x0200
181#define EPH_LOST_CAR 0x0400
182#define EPH_EXC_DEF 0x0800
183#define EPH_CTR_ROL 0x1000
184#define EPH_RX_OVRN 0x2000
185#define EPH_LINK_OK 0x4000
186#define EPH_TX_UNRN 0x8000
187#define MEMINFO 8 /* Memory Information Register */
188#define MEMCFG 10 /* Memory Configuration Register */
189
190/* Bank 1 registers. */
191#define CONFIG 0
192#define CFG_MII_SELECT 0x8000 /* 91C100 only */
193#define CFG_NO_WAIT 0x1000
194#define CFG_FULL_STEP 0x0400
195#define CFG_SET_SQLCH 0x0200
196#define CFG_AUI_SELECT 0x0100
197#define CFG_16BIT 0x0080
198#define CFG_DIS_LINK 0x0040
199#define CFG_STATIC 0x0030
200#define CFG_IRQ_SEL_1 0x0004
201#define CFG_IRQ_SEL_0 0x0002
202#define BASE_ADDR 2
203#define ADDR0 4
204#define GENERAL 10
205#define CONTROL 12
206#define CTL_STORE 0x0001
207#define CTL_RELOAD 0x0002
208#define CTL_EE_SELECT 0x0004
209#define CTL_TE_ENABLE 0x0020
210#define CTL_CR_ENABLE 0x0040
211#define CTL_LE_ENABLE 0x0080
212#define CTL_AUTO_RELEASE 0x0800
213#define CTL_POWERDOWN 0x2000
214
215/* Bank 2 registers. */
216#define MMU_CMD 0
217#define MC_ALLOC 0x20 /* or with number of 256 byte packets */
218#define MC_RESET 0x40
219#define MC_RELEASE 0x80 /* remove and release the current rx packet */
220#define MC_FREEPKT 0xA0 /* Release packet in PNR register */
221#define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
222#define PNR_ARR 2
223#define FIFO_PORTS 4
224#define FP_RXEMPTY 0x8000
225#define POINTER 6
226#define PTR_AUTO_INC 0x0040
227#define PTR_READ 0x2000
228#define PTR_AUTOINC 0x4000
229#define PTR_RCV 0x8000
230#define DATA_1 8
231#define INTERRUPT 12
232#define IM_RCV_INT 0x1
233#define IM_TX_INT 0x2
234#define IM_TX_EMPTY_INT 0x4
235#define IM_ALLOC_INT 0x8
236#define IM_RX_OVRN_INT 0x10
237#define IM_EPH_INT 0x20
238
239#define RCR 4
240enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
241 RxEnable = 0x0100, RxStripCRC = 0x0200};
242#define RCR_SOFTRESET 0x8000 /* resets the chip */
243#define RCR_STRIP_CRC 0x200 /* strips CRC */
244#define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
245#define RCR_ALMUL 0x4 /* receive all multicast packets */
246#define RCR_PROMISC 0x2 /* enable promiscuous mode */
247
248/* the normal settings for the RCR register : */
249#define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
250#define RCR_CLEAR 0x0 /* set it to a base state */
251#define COUNTER 6
252
253/* BANK 3 -- not the same values as in smc9194! */
254#define MULTICAST0 0
255#define MULTICAST2 2
256#define MULTICAST4 4
257#define MULTICAST6 6
258#define MGMT 8
259#define REVISION 0x0a
260
261/* Transmit status bits. */
262#define TS_SUCCESS 0x0001
263#define TS_16COL 0x0010
264#define TS_LATCOL 0x0200
265#define TS_LOSTCAR 0x0400
266
267/* Receive status bits. */
268#define RS_ALGNERR 0x8000
269#define RS_BADCRC 0x2000
270#define RS_ODDFRAME 0x1000
271#define RS_TOOLONG 0x0800
272#define RS_TOOSHORT 0x0400
273#define RS_MULTICAST 0x0001
274#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
275
276#define set_bits(v, p) outw(inw(p)|(v), (p))
277#define mask_bits(v, p) outw(inw(p)&(v), (p))
278
279/*====================================================================*/
280
cc3b4866 281static void smc91c92_detach(struct pcmcia_device *p_dev);
15b99ac1 282static int smc91c92_config(struct pcmcia_device *link);
fba395ee 283static void smc91c92_release(struct pcmcia_device *link);
1da177e4
LT		 284
285static int smc_open(struct net_device *dev);
286static int smc_close(struct net_device *dev);
287static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
288static void smc_tx_timeout(struct net_device *dev);
289static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev);
7d12e780 290static irqreturn_t smc_interrupt(int irq, void *dev_id);
1da177e4
LT		 291static void smc_rx(struct net_device *dev);
292static struct net_device_stats *smc_get_stats(struct net_device *dev);
293static void set_rx_mode(struct net_device *dev);
294static int s9k_config(struct net_device *dev, struct ifmap *map);
295static void smc_set_xcvr(struct net_device *dev, int if_port);
296static void smc_reset(struct net_device *dev);
297static void media_check(u_long arg);
906da809 298static void mdio_sync(unsigned int addr);
1da177e4
LT		 299static int mdio_read(struct net_device *dev, int phy_id, int loc);
300static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
301static int smc_link_ok(struct net_device *dev);
7282d491 302static const struct ethtool_ops ethtool_ops;
1da177e4
LT		 303
304/*======================================================================
305
306 smc91c92_attach() creates an "instance" of the driver, allocating
307 local data structures for one device. The device is registered
308 with Card Services.
309
310======================================================================*/
311
15b99ac1 312static int smc91c92_probe(struct pcmcia_device *link)
1da177e4 313{
1da177e4 314 struct smc_private *smc;
1da177e4 315 struct net_device *dev;
1da177e4
LT		 316
317 DEBUG(0, "smc91c92_attach()\n");
318
319 /* Create new ethernet device */
320 dev = alloc_etherdev(sizeof(struct smc_private));
321 if (!dev)
f8cfa618 322 return -ENOMEM;
1da177e4 323 smc = netdev_priv(dev);
fba395ee 324 smc->p_dev = link;
1da177e4
LT		 325 link->priv = dev;
326
327 spin_lock_init(&smc->lock);
328 link->io.NumPorts1 = 16;
329 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
330 link->io.IOAddrLines = 4;
5e7bf8cc 331 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_HANDLE_PRESENT;
1da177e4
LT		 332 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
333 link->irq.Handler = &smc_interrupt;
334 link->irq.Instance = dev;
335 link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4
LT		 336 link->conf.IntType = INT_MEMORY_AND_IO;
337
338 /* The SMC91c92-specific entries in the device structure. */
1da177e4
LT		 339 dev->hard_start_xmit = &smc_start_xmit;
340 dev->get_stats = &smc_get_stats;
341 dev->set_config = &s9k_config;
342 dev->set_multicast_list = &set_rx_mode;
343 dev->open = &smc_open;
344 dev->stop = &smc_close;
345 dev->do_ioctl = &smc_ioctl;
346 SET_ETHTOOL_OPS(dev, &ethtool_ops);
347#ifdef HAVE_TX_TIMEOUT
348 dev->tx_timeout = smc_tx_timeout;
349 dev->watchdog_timeo = TX_TIMEOUT;
350#endif
351
352 smc->mii_if.dev = dev;
353 smc->mii_if.mdio_read = mdio_read;
354 smc->mii_if.mdio_write = mdio_write;
355 smc->mii_if.phy_id_mask = 0x1f;
356 smc->mii_if.reg_num_mask = 0x1f;
357
15b99ac1 358 return smc91c92_config(link);
1da177e4
LT		 359} /* smc91c92_attach */
360
361/*======================================================================
362
363 This deletes a driver "instance". The device is de-registered
364 with Card Services. If it has been released, all local data
365 structures are freed. Otherwise, the structures will be freed
366 when the device is released.
367
368======================================================================*/
369
fba395ee 370static void smc91c92_detach(struct pcmcia_device *link)
1da177e4
LT		 371{
372 struct net_device *dev = link->priv;
1da177e4
LT		 373
374 DEBUG(0, "smc91c92_detach(0x%p)\n", link);
375
fd238232 376 if (link->dev_node)
1da177e4
LT		 377 unregister_netdev(dev);
378
e2d40963 379 smc91c92_release(link);
1da177e4 380
1da177e4
LT		 381 free_netdev(dev);
382} /* smc91c92_detach */
383
384/*====================================================================*/
385
386static int cvt_ascii_address(struct net_device *dev, char *s)
387{
388 int i, j, da, c;
389
390 if (strlen(s) != 12)
391 return -1;
392 for (i = 0; i < 6; i++) {
393 da = 0;
394 for (j = 0; j < 2; j++) {
395 c = *s++;
396 da <<= 4;
397 da += ((c >= '0') && (c <= '9')) ?
398 (c - '0') : ((c & 0x0f) + 9);
399 }
400 dev->dev_addr[i] = da;
401 }
402 return 0;
403}
404
405/*====================================================================*/
406
fba395ee 407static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple,
1da177e4
LT		 408 cisparse_t *parse)
409{
410 int i;
411
412 if ((i = pcmcia_get_first_tuple(handle, tuple)) != CS_SUCCESS ||
413 (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS)
414 return i;
415 return pcmcia_parse_tuple(handle, tuple, parse);
416}
417
fba395ee 418static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple,
1da177e4
LT		 419 cisparse_t *parse)
420{
421 int i;
422
423 if ((i = pcmcia_get_next_tuple(handle, tuple)) != CS_SUCCESS ||
424 (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS)
425 return i;
426 return pcmcia_parse_tuple(handle, tuple, parse);
427}
428
429/*======================================================================
430
431 Configuration stuff for Megahertz cards
432
433 mhz_3288_power() is used to power up a 3288's ethernet chip.
434 mhz_mfc_config() handles socket setup for multifunction (1144
435 and 3288) cards. mhz_setup() gets a card's hardware ethernet
436 address.
437
438======================================================================*/
439
fba395ee 440static int mhz_3288_power(struct pcmcia_device *link)
1da177e4
LT		 441{
442 struct net_device *dev = link->priv;
443 struct smc_private *smc = netdev_priv(dev);
444 u_char tmp;
445
446 /* Read the ISR twice... */
447 readb(smc->base+MEGAHERTZ_ISR);
448 udelay(5);
449 readb(smc->base+MEGAHERTZ_ISR);
450
451 /* Pause 200ms... */
452 mdelay(200);
453
454 /* Now read and write the COR... */
455 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
456 udelay(5);
457 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
458
459 return 0;
460}
461
b54bf94b
DB		 462static int mhz_mfc_config_check(struct pcmcia_device *p_dev,
463 cistpl_cftable_entry_t *cf,
464 void *priv_data)
465{
466 int k;
b54bf94b
DB		 467 p_dev->io.BasePort2 = cf->io.win[0].base;
468 for (k = 0; k < 0x400; k += 0x10) {
469 if (k & 0x80)
470 continue;
471 p_dev->io.BasePort1 = k ^ 0x300;
472 if (!pcmcia_request_io(p_dev, &p_dev->io))
473 return 0;
474 }
475 return -ENODEV;
476}
477
fba395ee 478static int mhz_mfc_config(struct pcmcia_device *link)
1da177e4
LT		 479{
480 struct net_device *dev = link->priv;
481 struct smc_private *smc = netdev_priv(dev);
4638aef4 482 struct smc_cfg_mem *cfg_mem;
1da177e4
LT		 483 win_req_t req;
484 memreq_t mem;
b54bf94b 485 int i;
1da177e4 486
4638aef4
YR		 487 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
488 if (!cfg_mem)
489 return CS_OUT_OF_RESOURCE;
490
1da177e4
LT		 491 link->conf.Attributes |= CONF_ENABLE_SPKR;
492 link->conf.Status = CCSR_AUDIO_ENA;
493 link->irq.Attributes =
494 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
495 link->io.IOAddrLines = 16;
496 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
497 link->io.NumPorts2 = 8;
498
1da177e4
LT		 499 /* The Megahertz combo cards have modem-like CIS entries, so
500 we have to explicitly try a bunch of port combinations. */
b54bf94b 501 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
4638aef4 502 goto free_cfg_mem;
1da177e4
LT		 503 dev->base_addr = link->io.BasePort1;
504
505 /* Allocate a memory window, for accessing the ISR */
506 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
507 req.Base = req.Size = 0;
508 req.AccessSpeed = 0;
fba395ee 509 i = pcmcia_request_window(&link, &req, &link->win);
1da177e4 510 if (i != CS_SUCCESS)
4638aef4 511 goto free_cfg_mem;
1da177e4
LT		 512 smc->base = ioremap(req.Base, req.Size);
513 mem.CardOffset = mem.Page = 0;
514 if (smc->manfid == MANFID_MOTOROLA)
515 mem.CardOffset = link->conf.ConfigBase;
516 i = pcmcia_map_mem_page(link->win, &mem);
517
518 if ((i == CS_SUCCESS)
519 && (smc->manfid == MANFID_MEGAHERTZ)
520 && (smc->cardid == PRODID_MEGAHERTZ_EM3288))
521 mhz_3288_power(link);
522
4638aef4
YR		 523free_cfg_mem:
524 kfree(cfg_mem);
b54bf94b 525 return -ENODEV;
1da177e4
LT		 526}
527
fba395ee 528static int mhz_setup(struct pcmcia_device *link)
1da177e4 529{
1da177e4 530 struct net_device *dev = link->priv;
4638aef4
YR		 531 struct smc_cfg_mem *cfg_mem;
532 tuple_t *tuple;
533 cisparse_t *parse;
534 u_char *buf, *station_addr;
535 int rc;
536
537 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
538 if (!cfg_mem)
539 return -1;
1da177e4 540
4638aef4
YR		 541 tuple = &cfg_mem->tuple;
542 parse = &cfg_mem->parse;
543 buf = cfg_mem->buf;
544
545 tuple->Attributes = tuple->TupleOffset = 0;
546 tuple->TupleData = (cisdata_t *)buf;
547 tuple->TupleDataMax = 255;
1da177e4
LT		 548
549 /* Read the station address from the CIS. It is stored as the last
550 (fourth) string in the Version 1 Version/ID tuple. */
a1a98b72
CE		 551 tuple->DesiredTuple = CISTPL_VERS_1;
552 if (first_tuple(link, tuple, parse) != CS_SUCCESS) {
553 rc = -1;
554 goto free_cfg_mem;
555 }
556 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
557 if (next_tuple(link, tuple, parse) != CS_SUCCESS)
558 first_tuple(link, tuple, parse);
559 if (parse->version_1.ns > 3) {
560 station_addr = parse->version_1.str + parse->version_1.ofs[3];
4638aef4
YR		 561 if (cvt_ascii_address(dev, station_addr) == 0) {
562 rc = 0;
563 goto free_cfg_mem;
564 }
1da177e4
LT		 565 }
566
567 /* Another possibility: for the EM3288, in a special tuple */
4638aef4 568 tuple->DesiredTuple = 0x81;
fba395ee 569 if (pcmcia_get_first_tuple(link, tuple) != CS_SUCCESS) {
4638aef4
YR		 570 rc = -1;
571 goto free_cfg_mem;
572 }
fba395ee 573 if (pcmcia_get_tuple_data(link, tuple) != CS_SUCCESS) {
4638aef4
YR		 574 rc = -1;
575 goto free_cfg_mem;
576 }
1da177e4 577 buf[12] = '\0';
4638aef4
YR		 578 if (cvt_ascii_address(dev, buf) == 0) {
579 rc = 0;
580 goto free_cfg_mem;
581 }
582 rc = -1;
583free_cfg_mem:
584 kfree(cfg_mem);
585 return rc;
1da177e4
LT		 586}
587
588/*======================================================================
589
590 Configuration stuff for the Motorola Mariner
591
592 mot_config() writes directly to the Mariner configuration
593 registers because the CIS is just bogus.
594
595======================================================================*/
596
fba395ee 597static void mot_config(struct pcmcia_device *link)
1da177e4
LT		 598{
599 struct net_device *dev = link->priv;
600 struct smc_private *smc = netdev_priv(dev);
906da809
OJ		 601 unsigned int ioaddr = dev->base_addr;
602 unsigned int iouart = link->io.BasePort2;
1da177e4
LT		 603
604 /* Set UART base address and force map with COR bit 1 */
605 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
606 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
607 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
608
609 /* Set SMC base address and force map with COR bit 1 */
610 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
611 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
612 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
613
614 /* Wait for things to settle down */
615 mdelay(100);
616}
617
fba395ee 618static int mot_setup(struct pcmcia_device *link)
1da177e4
LT		 619{
620 struct net_device *dev = link->priv;
906da809 621 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 622 int i, wait, loop;
623 u_int addr;
624
625 /* Read Ethernet address from Serial EEPROM */
626
627 for (i = 0; i < 3; i++) {
628 SMC_SELECT_BANK(2);
629 outw(MOT_EEPROM + i, ioaddr + POINTER);
630 SMC_SELECT_BANK(1);
631 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
632
633 for (loop = wait = 0; loop < 200; loop++) {
634 udelay(10);
635 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
636 if (wait == 0) break;
637 }
638
639 if (wait)
640 return -1;
641
642 addr = inw(ioaddr + GENERAL);
643 dev->dev_addr[2*i] = addr & 0xff;
644 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
645 }
646
647 return 0;
648}
649
650/*====================================================================*/
651
b54bf94b
DB		 652static int smc_configcheck(struct pcmcia_device *p_dev,
653 cistpl_cftable_entry_t *cf,
654 void *priv_data)
655{
b54bf94b
DB		 656 p_dev->io.BasePort1 = cf->io.win[0].base;
657 p_dev->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
658 return pcmcia_request_io(p_dev, &p_dev->io);
659}
660
fba395ee 661static int smc_config(struct pcmcia_device *link)
1da177e4
LT		 662{
663 struct net_device *dev = link->priv;
1da177e4
LT		 664 int i;
665
1da177e4 666 link->io.NumPorts1 = 16;
b54bf94b
DB		 667 i = pcmcia_loop_config(link, smc_configcheck, NULL);
668 if (!i)
669 dev->base_addr = link->io.BasePort1;
4638aef4 670
1da177e4
LT		 671 return i;
672}
673
fba395ee 674static int smc_setup(struct pcmcia_device *link)
1da177e4 675{
1da177e4 676 struct net_device *dev = link->priv;
4638aef4
YR		 677 struct smc_cfg_mem *cfg_mem;
678 tuple_t *tuple;
679 cisparse_t *parse;
1da177e4 680 cistpl_lan_node_id_t *node_id;
4638aef4
YR		 681 u_char *buf, *station_addr;
682 int i, rc;
683
684 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
685 if (!cfg_mem)
686 return CS_OUT_OF_RESOURCE;
687
688 tuple = &cfg_mem->tuple;
689 parse = &cfg_mem->parse;
690 buf = cfg_mem->buf;
1da177e4 691
4638aef4
YR		 692 tuple->Attributes = tuple->TupleOffset = 0;
693 tuple->TupleData = (cisdata_t *)buf;
694 tuple->TupleDataMax = 255;
1da177e4
LT		 695
696 /* Check for a LAN function extension tuple */
4638aef4 697 tuple->DesiredTuple = CISTPL_FUNCE;
fba395ee 698 i = first_tuple(link, tuple, parse);
1da177e4 699 while (i == CS_SUCCESS) {
4638aef4 700 if (parse->funce.type == CISTPL_FUNCE_LAN_NODE_ID)
1da177e4 701 break;
fba395ee 702 i = next_tuple(link, tuple, parse);
1da177e4
LT		 703 }
704 if (i == CS_SUCCESS) {
4638aef4 705 node_id = (cistpl_lan_node_id_t *)parse->funce.data;
1da177e4
LT		 706 if (node_id->nb == 6) {
707 for (i = 0; i < 6; i++)
708 dev->dev_addr[i] = node_id->id[i];
4638aef4
YR		 709 rc = 0;
710 goto free_cfg_mem;
1da177e4
LT		 711 }
712 }
713 /* Try the third string in the Version 1 Version/ID tuple. */
a9606fd3
DB		 714 if (link->prod_id[2]) {
715 station_addr = link->prod_id[2];
716 if (cvt_ascii_address(dev, station_addr) == 0) {
717 rc = 0;
718 goto free_cfg_mem;
719 }
4638aef4 720 }
1da177e4 721
4638aef4
YR		 722 rc = -1;
723free_cfg_mem:
724 kfree(cfg_mem);
725 return rc;
1da177e4
LT		 726}
727
728/*====================================================================*/
729
fba395ee 730static int osi_config(struct pcmcia_device *link)
1da177e4
LT		 731{
732 struct net_device *dev = link->priv;
906da809 733 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
1da177e4
LT		 734 int i, j;
735
736 link->conf.Attributes |= CONF_ENABLE_SPKR;
737 link->conf.Status = CCSR_AUDIO_ENA;
738 link->irq.Attributes =
739 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
740 link->io.NumPorts1 = 64;
741 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
742 link->io.NumPorts2 = 8;
743 link->io.IOAddrLines = 16;
744
745 /* Enable Hard Decode, LAN, Modem */
746 link->conf.ConfigIndex = 0x23;
747
748 for (i = j = 0; j < 4; j++) {
749 link->io.BasePort2 = com[j];
fba395ee 750 i = pcmcia_request_io(link, &link->io);
1da177e4
LT		 751 if (i == CS_SUCCESS) break;
752 }
753 if (i != CS_SUCCESS) {
754 /* Fallback: turn off hard decode */
755 link->conf.ConfigIndex = 0x03;
756 link->io.NumPorts2 = 0;
fba395ee 757 i = pcmcia_request_io(link, &link->io);
1da177e4
LT		 758 }
759 dev->base_addr = link->io.BasePort1 + 0x10;
760 return i;
761}
762
fba395ee 763static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
1da177e4 764{
1da177e4 765 struct net_device *dev = link->priv;
4638aef4
YR		 766 struct smc_cfg_mem *cfg_mem;
767 tuple_t *tuple;
768 u_char *buf;
769 int i, rc;
1da177e4 770
4638aef4
YR		 771 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
772 if (!cfg_mem)
773 return -1;
774
775 tuple = &cfg_mem->tuple;
776 buf = cfg_mem->buf;
777
778 tuple->Attributes = TUPLE_RETURN_COMMON;
779 tuple->TupleData = (cisdata_t *)buf;
780 tuple->TupleDataMax = 255;
781 tuple->TupleOffset = 0;
1da177e4
LT		 782
783 /* Read the station address from tuple 0x90, subtuple 0x04 */
4638aef4 784 tuple->DesiredTuple = 0x90;
fba395ee 785 i = pcmcia_get_first_tuple(link, tuple);
1da177e4 786 while (i == CS_SUCCESS) {
fba395ee 787 i = pcmcia_get_tuple_data(link, tuple);
1da177e4
LT		 788 if ((i != CS_SUCCESS) || (buf[0] == 0x04))
789 break;
fba395ee 790 i = pcmcia_get_next_tuple(link, tuple);
4638aef4
YR		 791 }
792 if (i != CS_SUCCESS) {
793 rc = -1;
794 goto free_cfg_mem;
1da177e4 795 }
1da177e4
LT		 796 for (i = 0; i < 6; i++)
797 dev->dev_addr[i] = buf[i+2];
798
799 if (((manfid == MANFID_OSITECH) &&
800 (cardid == PRODID_OSITECH_SEVEN)) ||
801 ((manfid == MANFID_PSION) &&
802 (cardid == PRODID_PSION_NET100))) {
803 /* Download the Seven of Diamonds firmware */
804 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
805 outb(__Xilinx7OD[i], link->io.BasePort1+2);
806 udelay(50);
807 }
808 } else if (manfid == MANFID_OSITECH) {
809 /* Make sure both functions are powered up */
810 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
811 /* Now, turn on the interrupt for both card functions */
812 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
813 DEBUG(2, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
814 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
815 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
816 }
4638aef4
YR		 817 rc = 0;
818free_cfg_mem:
819 kfree(cfg_mem);
820 return rc;
1da177e4
LT		 821}
822
fba395ee 823static int smc91c92_suspend(struct pcmcia_device *link)
98e4c28b 824{
98e4c28b
DB		 825 struct net_device *dev = link->priv;
826
e2d40963 827 if (link->open)
4bbed523 828 netif_device_detach(dev);
98e4c28b
DB		 829
830 return 0;
831}
832
fba395ee 833static int smc91c92_resume(struct pcmcia_device *link)
98e4c28b 834{
98e4c28b
DB		 835 struct net_device *dev = link->priv;
836 struct smc_private *smc = netdev_priv(dev);
837 int i;
838
e2d40963
DB		 839 if ((smc->manfid == MANFID_MEGAHERTZ) &&
840 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
841 mhz_3288_power(link);
842 if (smc->manfid == MANFID_MOTOROLA)
843 mot_config(link);
844 if ((smc->manfid == MANFID_OSITECH) &&
845 (smc->cardid != PRODID_OSITECH_SEVEN)) {
846 /* Power up the card and enable interrupts */
847 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
848 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
849 }
850 if (((smc->manfid == MANFID_OSITECH) &&
851 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
852 ((smc->manfid == MANFID_PSION) &&
853 (smc->cardid == PRODID_PSION_NET100))) {
854 /* Download the Seven of Diamonds firmware */
855 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
856 outb(__Xilinx7OD[i], link->io.BasePort1+2);
857 udelay(50);
98e4c28b
DB		 858 }
859 }
e2d40963
DB		 860 if (link->open) {
861 smc_reset(dev);
862 netif_device_attach(dev);
863 }
98e4c28b
DB		 864
865 return 0;
866}
867
868
1da177e4
LT		 869/*======================================================================
870
871 This verifies that the chip is some SMC91cXX variant, and returns
872 the revision code if successful. Otherwise, it returns -ENODEV.
873
874======================================================================*/
875
fba395ee 876static int check_sig(struct pcmcia_device *link)
1da177e4
LT		 877{
878 struct net_device *dev = link->priv;
906da809 879 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 880 int width;
881 u_short s;
882
883 SMC_SELECT_BANK(1);
884 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
885 /* Try powering up the chip */
886 outw(0, ioaddr + CONTROL);
887 mdelay(55);
888 }
889
890 /* Try setting bus width */
891 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
892 s = inb(ioaddr + CONFIG);
893 if (width)
894 s |= CFG_16BIT;
895 else
896 s &= ~CFG_16BIT;
897 outb(s, ioaddr + CONFIG);
898
899 /* Check Base Address Register to make sure bus width is OK */
900 s = inw(ioaddr + BASE_ADDR);
901 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
902 ((s >> 8) != (s & 0xff))) {
903 SMC_SELECT_BANK(3);
904 s = inw(ioaddr + REVISION);
905 return (s & 0xff);
906 }
907
908 if (width) {
4bbed523
DB		 909 modconf_t mod = {
910 .Attributes = CONF_IO_CHANGE_WIDTH,
911 };
912 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
913
fba395ee
DB		 914 smc91c92_suspend(link);
915 pcmcia_modify_configuration(link, &mod);
916 smc91c92_resume(link);
4bbed523 917 return check_sig(link);
1da177e4
LT		 918 }
919 return -ENODEV;
920}
921
922/*======================================================================
923
924 smc91c92_config() is scheduled to run after a CARD_INSERTION event
925 is received, to configure the PCMCIA socket, and to make the
926 ethernet device available to the system.
927
928======================================================================*/
929
930#define CS_EXIT_TEST(ret, svc, label) \
fba395ee 931if (ret != CS_SUCCESS) { cs_error(link, svc, ret); goto label; }
1da177e4 932
15b99ac1 933static int smc91c92_config(struct pcmcia_device *link)
1da177e4 934{
1da177e4
LT		 935 struct net_device *dev = link->priv;
936 struct smc_private *smc = netdev_priv(dev);
1da177e4
LT		 937 char *name;
938 int i, j, rev;
906da809 939 unsigned int ioaddr;
1da177e4 940 u_long mir;
0795af57 941 DECLARE_MAC_BUF(mac);
1da177e4
LT		 942
943 DEBUG(0, "smc91c92_config(0x%p)\n", link);
944
efd50585
DB		 945 smc->manfid = link->manf_id;
946 smc->cardid = link->card_id;
1da177e4 947
1da177e4
LT		 948 if ((smc->manfid == MANFID_OSITECH) &&
949 (smc->cardid != PRODID_OSITECH_SEVEN)) {
950 i = osi_config(link);
951 } else if ((smc->manfid == MANFID_MOTOROLA) ||
952 ((smc->manfid == MANFID_MEGAHERTZ) &&
953 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
954 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
955 i = mhz_mfc_config(link);
956 } else {
957 i = smc_config(link);
958 }
959 CS_EXIT_TEST(i, RequestIO, config_failed);
960
fba395ee 961 i = pcmcia_request_irq(link, &link->irq);
1da177e4 962 CS_EXIT_TEST(i, RequestIRQ, config_failed);
fba395ee 963 i = pcmcia_request_configuration(link, &link->conf);
1da177e4
LT		 964 CS_EXIT_TEST(i, RequestConfiguration, config_failed);
965
966 if (smc->manfid == MANFID_MOTOROLA)
967 mot_config(link);
968
969 dev->irq = link->irq.AssignedIRQ;
970
971 if ((if_port >= 0) && (if_port <= 2))
972 dev->if_port = if_port;
973 else
974 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
975
976 switch (smc->manfid) {
977 case MANFID_OSITECH:
978 case MANFID_PSION:
979 i = osi_setup(link, smc->manfid, smc->cardid); break;
980 case MANFID_SMC:
981 case MANFID_NEW_MEDIA:
982 i = smc_setup(link); break;
983 case 0x128: /* For broken Megahertz cards */
984 case MANFID_MEGAHERTZ:
985 i = mhz_setup(link); break;
986 case MANFID_MOTOROLA:
987 default: /* get the hw address from EEPROM */
988 i = mot_setup(link); break;
989 }
990
991 if (i != 0) {
992 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
993 goto config_undo;
994 }
995
996 smc->duplex = 0;
997 smc->rx_ovrn = 0;
998
999 rev = check_sig(link);
1000 name = "???";
1001 if (rev > 0)
1002 switch (rev >> 4) {
1003 case 3: name = "92"; break;
1004 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
1005 case 5: name = "95"; break;
1006 case 7: name = "100"; break;
1007 case 8: name = "100-FD"; break;
1008 case 9: name = "110"; break;
1009 }
1010
1011 ioaddr = dev->base_addr;
1012 if (rev > 0) {
1013 u_long mcr;
1014 SMC_SELECT_BANK(0);
1015 mir = inw(ioaddr + MEMINFO) & 0xff;
1016 if (mir == 0xff) mir++;
1017 /* Get scale factor for memory size */
1018 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
1019 mir *= 128 * (1<<((mcr >> 9) & 7));
1020 SMC_SELECT_BANK(1);
1021 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
1022 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
1023 if (smc->manfid == MANFID_OSITECH)
1024 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
1025 if ((rev >> 4) >= 7)
1026 smc->cfg |= CFG_MII_SELECT;
1027 } else
1028 mir = 0;
1029
1030 if (smc->cfg & CFG_MII_SELECT) {
1031 SMC_SELECT_BANK(3);
1032
1033 for (i = 0; i < 32; i++) {
1034 j = mdio_read(dev, i, 1);
1035 if ((j != 0) && (j != 0xffff)) break;
1036 }
1037 smc->mii_if.phy_id = (i < 32) ? i : -1;
1038
1039 SMC_SELECT_BANK(0);
1040 }
1041
fd238232 1042 link->dev_node = &smc->node;
fba395ee 1043 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1da177e4
LT		 1044
1045 if (register_netdev(dev) != 0) {
1046 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
fd238232 1047 link->dev_node = NULL;
1da177e4
LT		 1048 goto config_undo;
1049 }
1050
1051 strcpy(smc->node.dev_name, dev->name);
1052
1053 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
0795af57
JP		 1054 "hw_addr %s\n",
1055 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
1056 print_mac(mac, dev->dev_addr));
1da177e4
LT		 1057
1058 if (rev > 0) {
1059 if (mir & 0x3ff)
1060 printk(KERN_INFO " %lu byte", mir);
1061 else
1062 printk(KERN_INFO " %lu kb", mir>>10);
1063 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
1064 "MII" : if_names[dev->if_port]);
1065 }
1066
1067 if (smc->cfg & CFG_MII_SELECT) {
1068 if (smc->mii_if.phy_id != -1) {
1069 DEBUG(0, " MII transceiver at index %d, status %x.\n",
1070 smc->mii_if.phy_id, j);
1071 } else {
1072 printk(KERN_NOTICE " No MII transceivers found!\n");
1073 }
1074 }
15b99ac1 1075 return 0;
1da177e4
LT		 1076
1077config_undo:
1078 unregister_netdev(dev);
1079config_failed: /* CS_EXIT_TEST() calls jump to here... */
1080 smc91c92_release(link);
15b99ac1 1081 return -ENODEV;
1da177e4
LT		 1082} /* smc91c92_config */
1083
1084/*======================================================================
1085
1086 After a card is removed, smc91c92_release() will unregister the net
1087 device, and release the PCMCIA configuration. If the device is
1088 still open, this will be postponed until it is closed.
1089
1090======================================================================*/
1091
fba395ee 1092static void smc91c92_release(struct pcmcia_device *link)
1da177e4 1093{
5f2a71fc
DB		 1094 DEBUG(0, "smc91c92_release(0x%p)\n", link);
1095 if (link->win) {
1096 struct net_device *dev = link->priv;
1097 struct smc_private *smc = netdev_priv(dev);
1098 iounmap(smc->base);
1099 }
fba395ee 1100 pcmcia_disable_device(link);
1da177e4
LT		 1101}
1102
1da177e4
LT		 1103/*======================================================================
1104
1105 MII interface support for SMC91cXX based cards
1106======================================================================*/
1107
1108#define MDIO_SHIFT_CLK 0x04
1109#define MDIO_DATA_OUT 0x01
1110#define MDIO_DIR_WRITE 0x08
1111#define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1112#define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1113#define MDIO_DATA_READ 0x02
1114
906da809 1115static void mdio_sync(unsigned int addr)
1da177e4
LT		 1116{
1117 int bits;
1118 for (bits = 0; bits < 32; bits++) {
1119 outb(MDIO_DATA_WRITE1, addr);
1120 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1121 }
1122}
1123
1124static int mdio_read(struct net_device *dev, int phy_id, int loc)
1125{
906da809 1126 unsigned int addr = dev->base_addr + MGMT;
1da177e4
LT		 1127 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1128 int i, retval = 0;
1129
1130 mdio_sync(addr);
1131 for (i = 13; i >= 0; i--) {
1132 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1133 outb(dat, addr);
1134 outb(dat | MDIO_SHIFT_CLK, addr);
1135 }
1136 for (i = 19; i > 0; i--) {
1137 outb(0, addr);
1138 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1139 outb(MDIO_SHIFT_CLK, addr);
1140 }
1141 return (retval>>1) & 0xffff;
1142}
1143
1144static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1145{
906da809 1146 unsigned int addr = dev->base_addr + MGMT;
1da177e4
LT		 1147 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1148 int i;
1149
1150 mdio_sync(addr);
1151 for (i = 31; i >= 0; i--) {
1152 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1153 outb(dat, addr);
1154 outb(dat | MDIO_SHIFT_CLK, addr);
1155 }
1156 for (i = 1; i >= 0; i--) {
1157 outb(0, addr);
1158 outb(MDIO_SHIFT_CLK, addr);
1159 }
1160}
1161
1162/*======================================================================
1163
1164 The driver core code, most of which should be common with a
1165 non-PCMCIA implementation.
1166
1167======================================================================*/
1168
1169#ifdef PCMCIA_DEBUG
1170static void smc_dump(struct net_device *dev)
1171{
906da809 1172 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1173 u_short i, w, save;
1174 save = inw(ioaddr + BANK_SELECT);
1175 for (w = 0; w < 4; w++) {
1176 SMC_SELECT_BANK(w);
1177 printk(KERN_DEBUG "bank %d: ", w);
1178 for (i = 0; i < 14; i += 2)
1179 printk(" %04x", inw(ioaddr + i));
1180 printk("\n");
1181 }
1182 outw(save, ioaddr + BANK_SELECT);
1183}
1184#endif
1185
1186static int smc_open(struct net_device *dev)
1187{
1188 struct smc_private *smc = netdev_priv(dev);
fba395ee 1189 struct pcmcia_device *link = smc->p_dev;
1da177e4
LT		 1190
1191#ifdef PCMCIA_DEBUG
1192 DEBUG(0, "%s: smc_open(%p), ID/Window %4.4x.\n",
1193 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1194 if (pc_debug > 1) smc_dump(dev);
1195#endif
1196
1197 /* Check that the PCMCIA card is still here. */
9940ec36 1198 if (!pcmcia_dev_present(link))
1da177e4
LT		 1199 return -ENODEV;
1200 /* Physical device present signature. */
1201 if (check_sig(link) < 0) {
1202 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1203 return -ENODEV;
1204 }
1205 link->open++;
1206
1207 netif_start_queue(dev);
1208 smc->saved_skb = NULL;
1209 smc->packets_waiting = 0;
1210
1211 smc_reset(dev);
1212 init_timer(&smc->media);
1213 smc->media.function = &media_check;
1214 smc->media.data = (u_long) dev;
1215 smc->media.expires = jiffies + HZ;
1216 add_timer(&smc->media);
1217
1218 return 0;
1219} /* smc_open */
1220
1221/*====================================================================*/
1222
1223static int smc_close(struct net_device *dev)
1224{
1225 struct smc_private *smc = netdev_priv(dev);
fba395ee 1226 struct pcmcia_device *link = smc->p_dev;
906da809 1227 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1228
1229 DEBUG(0, "%s: smc_close(), status %4.4x.\n",
1230 dev->name, inw(ioaddr + BANK_SELECT));
1231
1232 netif_stop_queue(dev);
1233
1234 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1235 Don't bother to check for chip present. */
1236 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1237 outw(0, ioaddr + INTERRUPT);
1238 SMC_SELECT_BANK(0);
1239 mask_bits(0xff00, ioaddr + RCR);
1240 mask_bits(0xff00, ioaddr + TCR);
1241
1242 /* Put the chip into power-down mode. */
1243 SMC_SELECT_BANK(1);
1244 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1245
1246 link->open--;
1247 del_timer_sync(&smc->media);
1248
1249 return 0;
1250} /* smc_close */
1251
1252/*======================================================================
1253
1254 Transfer a packet to the hardware and trigger the packet send.
1255 This may be called at either from either the Tx queue code
1256 or the interrupt handler.
1257
1258======================================================================*/
1259
1260static void smc_hardware_send_packet(struct net_device * dev)
1261{
1262 struct smc_private *smc = netdev_priv(dev);
1263 struct sk_buff *skb = smc->saved_skb;
906da809 1264 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1265 u_char packet_no;
1266
1267 if (!skb) {
1268 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1269 return;
1270 }
1271
1272 /* There should be a packet slot waiting. */
1273 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1274 if (packet_no & 0x80) {
1275 /* If not, there is a hardware problem! Likely an ejected card. */
1276 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1277 " failed, status %#2.2x.\n", dev->name, packet_no);
1278 dev_kfree_skb_irq(skb);
1279 smc->saved_skb = NULL;
1280 netif_start_queue(dev);
1281 return;
1282 }
1283
1284 smc->stats.tx_bytes += skb->len;
1285 /* The card should use the just-allocated buffer. */
1286 outw(packet_no, ioaddr + PNR_ARR);
1287 /* point to the beginning of the packet */
1288 outw(PTR_AUTOINC , ioaddr + POINTER);
1289
1290 /* Send the packet length (+6 for status, length and ctl byte)
1291 and the status word (set to zeros). */
1292 {
1293 u_char *buf = skb->data;
1294 u_int length = skb->len; /* The chip will pad to ethernet min. */
1295
1296 DEBUG(2, "%s: Trying to xmit packet of length %d.\n",
1297 dev->name, length);
1298
1299 /* send the packet length: +6 for status word, length, and ctl */
1300 outw(0, ioaddr + DATA_1);
1301 outw(length + 6, ioaddr + DATA_1);
1302 outsw(ioaddr + DATA_1, buf, length >> 1);
1303
1304 /* The odd last byte, if there is one, goes in the control word. */
1305 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1306 }
1307
1308 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1309 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1310 (inw(ioaddr + INTERRUPT) & 0xff00),
1311 ioaddr + INTERRUPT);
1312
1313 /* The chip does the rest of the work. */
1314 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1315
1316 smc->saved_skb = NULL;
1317 dev_kfree_skb_irq(skb);
1318 dev->trans_start = jiffies;
1319 netif_start_queue(dev);
1320 return;
1321}
1322
1323/*====================================================================*/
1324
1325static void smc_tx_timeout(struct net_device *dev)
1326{
1327 struct smc_private *smc = netdev_priv(dev);
906da809 1328 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1329
1330 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1331 "Tx_status %2.2x status %4.4x.\n",
1332 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1333 smc->stats.tx_errors++;
1334 smc_reset(dev);
1335 dev->trans_start = jiffies;
1336 smc->saved_skb = NULL;
1337 netif_wake_queue(dev);
1338}
1339
1340static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev)
1341{
1342 struct smc_private *smc = netdev_priv(dev);
906da809 1343 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1344 u_short num_pages;
1345 short time_out, ir;
85e27831 1346 unsigned long flags;
1da177e4
LT		 1347
1348 netif_stop_queue(dev);
1349
1350 DEBUG(2, "%s: smc_start_xmit(length = %d) called,"
1351 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1352
1353 if (smc->saved_skb) {
1354 /* THIS SHOULD NEVER HAPPEN. */
1355 smc->stats.tx_aborted_errors++;
1356 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1357 dev->name);
1358 return 1;
1359 }
1360 smc->saved_skb = skb;
1361
1362 num_pages = skb->len >> 8;
1363
1364 if (num_pages > 7) {
1365 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1366 dev_kfree_skb (skb);
1367 smc->saved_skb = NULL;
1368 smc->stats.tx_dropped++;
1369 return 0; /* Do not re-queue this packet. */
1370 }
1371 /* A packet is now waiting. */
1372 smc->packets_waiting++;
1373
85e27831 1374 spin_lock_irqsave(&smc->lock, flags);
1da177e4
LT		 1375 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1376
1377 /* need MC_RESET to keep the memory consistent. errata? */
1378 if (smc->rx_ovrn) {
1379 outw(MC_RESET, ioaddr + MMU_CMD);
1380 smc->rx_ovrn = 0;
1381 }
1382
1383 /* Allocate the memory; send the packet now if we win. */
1384 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1385 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1386 ir = inw(ioaddr+INTERRUPT);
1387 if (ir & IM_ALLOC_INT) {
1388 /* Acknowledge the interrupt, send the packet. */
1389 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1390 smc_hardware_send_packet(dev); /* Send the packet now.. */
85e27831 1391 spin_unlock_irqrestore(&smc->lock, flags);
1da177e4
LT		 1392 return 0;
1393 }
1394 }
1395
1396 /* Otherwise defer until the Tx-space-allocated interrupt. */
1397 DEBUG(2, "%s: memory allocation deferred.\n", dev->name);
1398 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
85e27831 1399 spin_unlock_irqrestore(&smc->lock, flags);
1da177e4
LT		 1400
1401 return 0;
1402}
1403
1404/*======================================================================
1405
1406 Handle a Tx anomolous event. Entered while in Window 2.
1407
1408======================================================================*/
1409
1410static void smc_tx_err(struct net_device * dev)
1411{
1412 struct smc_private *smc = netdev_priv(dev);
906da809 1413 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1414 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1415 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1416 int tx_status;
1417
1418 /* select this as the packet to read from */
1419 outw(packet_no, ioaddr + PNR_ARR);
1420
1421 /* read the first word from this packet */
1422 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1423
1424 tx_status = inw(ioaddr + DATA_1);
1425
1426 smc->stats.tx_errors++;
1427 if (tx_status & TS_LOSTCAR) smc->stats.tx_carrier_errors++;
1428 if (tx_status & TS_LATCOL) smc->stats.tx_window_errors++;
1429 if (tx_status & TS_16COL) {
1430 smc->stats.tx_aborted_errors++;
1431 smc->tx_err++;
1432 }
1433
1434 if (tx_status & TS_SUCCESS) {
1435 printk(KERN_NOTICE "%s: Successful packet caused error "
1436 "interrupt?\n", dev->name);
1437 }
1438 /* re-enable transmit */
1439 SMC_SELECT_BANK(0);
1440 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1441 SMC_SELECT_BANK(2);
1442
1443 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1444
1445 /* one less packet waiting for me */
1446 smc->packets_waiting--;
1447
1448 outw(saved_packet, ioaddr + PNR_ARR);
1449 return;
1450}
1451
1452/*====================================================================*/
1453
1454static void smc_eph_irq(struct net_device *dev)
1455{
1456 struct smc_private *smc = netdev_priv(dev);
906da809 1457 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1458 u_short card_stats, ephs;
1459
1460 SMC_SELECT_BANK(0);
1461 ephs = inw(ioaddr + EPH);
1462 DEBUG(2, "%s: Ethernet protocol handler interrupt, status"
1463 " %4.4x.\n", dev->name, ephs);
1464 /* Could be a counter roll-over warning: update stats. */
1465 card_stats = inw(ioaddr + COUNTER);
1466 /* single collisions */
1467 smc->stats.collisions += card_stats & 0xF;
1468 card_stats >>= 4;
1469 /* multiple collisions */
1470 smc->stats.collisions += card_stats & 0xF;
1471#if 0 /* These are for when linux supports these statistics */
1472 card_stats >>= 4; /* deferred */
1473 card_stats >>= 4; /* excess deferred */
1474#endif
1475 /* If we had a transmit error we must re-enable the transmitter. */
1476 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1477
1478 /* Clear a link error interrupt. */
1479 SMC_SELECT_BANK(1);
1480 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1481 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1482 ioaddr + CONTROL);
1483 SMC_SELECT_BANK(2);
1484}
1485
1486/*====================================================================*/
1487
7d12e780 1488static irqreturn_t smc_interrupt(int irq, void *dev_id)
1da177e4
LT		 1489{
1490 struct net_device *dev = dev_id;
1491 struct smc_private *smc = netdev_priv(dev);
906da809 1492 unsigned int ioaddr;
1da177e4
LT		 1493 u_short saved_bank, saved_pointer, mask, status;
1494 unsigned int handled = 1;
1495 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1496
1497 if (!netif_device_present(dev))
1498 return IRQ_NONE;
1499
1500 ioaddr = dev->base_addr;
1501
1502 DEBUG(3, "%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1503 irq, ioaddr);
1504
85e27831 1505 spin_lock(&smc->lock);
1da177e4
LT		 1506 smc->watchdog = 0;
1507 saved_bank = inw(ioaddr + BANK_SELECT);
1508 if ((saved_bank & 0xff00) != 0x3300) {
1509 /* The device does not exist -- the card could be off-line, or
1510 maybe it has been ejected. */
1511 DEBUG(1, "%s: SMC91c92 interrupt %d for non-existent"
1512 "/ejected device.\n", dev->name, irq);
1513 handled = 0;
1514 goto irq_done;
1515 }
1516
1517 SMC_SELECT_BANK(2);
1518 saved_pointer = inw(ioaddr + POINTER);
1519 mask = inw(ioaddr + INTERRUPT) >> 8;
1520 /* clear all interrupts */
1521 outw(0, ioaddr + INTERRUPT);
1522
1523 do { /* read the status flag, and mask it */
1524 status = inw(ioaddr + INTERRUPT) & 0xff;
1525 DEBUG(3, "%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1526 status, mask);
1527 if ((status & mask) == 0) {
1528 if (bogus_cnt == INTR_WORK)
1529 handled = 0;
1530 break;
1531 }
1532 if (status & IM_RCV_INT) {
1533 /* Got a packet(s). */
1534 smc_rx(dev);
1535 }
1536 if (status & IM_TX_INT) {
1537 smc_tx_err(dev);
1538 outw(IM_TX_INT, ioaddr + INTERRUPT);
1539 }
1540 status &= mask;
1541 if (status & IM_TX_EMPTY_INT) {
1542 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1543 mask &= ~IM_TX_EMPTY_INT;
1544 smc->stats.tx_packets += smc->packets_waiting;
1545 smc->packets_waiting = 0;
1546 }
1547 if (status & IM_ALLOC_INT) {
1548 /* Clear this interrupt so it doesn't happen again */
1549 mask &= ~IM_ALLOC_INT;
1550
1551 smc_hardware_send_packet(dev);
1552
1553 /* enable xmit interrupts based on this */
1554 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1555
1556 /* and let the card send more packets to me */
1557 netif_wake_queue(dev);
1558 }
1559 if (status & IM_RX_OVRN_INT) {
1560 smc->stats.rx_errors++;
1561 smc->stats.rx_fifo_errors++;
1562 if (smc->duplex)
1563 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1564 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1565 }
1566 if (status & IM_EPH_INT)
1567 smc_eph_irq(dev);
1568 } while (--bogus_cnt);
1569
1570 DEBUG(3, " Restoring saved registers mask %2.2x bank %4.4x"
1571 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1572
1573 /* restore state register */
1574 outw((mask<<8), ioaddr + INTERRUPT);
1575 outw(saved_pointer, ioaddr + POINTER);
1576 SMC_SELECT_BANK(saved_bank);
1577
1578 DEBUG(3, "%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1579
1580irq_done:
1581
1582 if ((smc->manfid == MANFID_OSITECH) &&
1583 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1584 /* Retrigger interrupt if needed */
1585 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1586 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1587 }
1588 if (smc->manfid == MANFID_MOTOROLA) {
1589 u_char cor;
1590 cor = readb(smc->base + MOT_UART + CISREG_COR);
1591 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1592 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1593 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1594 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1595 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1596 }
1597#ifdef DOES_NOT_WORK
1598 if (smc->base != NULL) { /* Megahertz MFC's */
1599 readb(smc->base+MEGAHERTZ_ISR);
1600 readb(smc->base+MEGAHERTZ_ISR);
1601 }
1602#endif
85e27831 1603 spin_unlock(&smc->lock);
1da177e4
LT		 1604 return IRQ_RETVAL(handled);
1605}
1606
1607/*====================================================================*/
1608
1609static void smc_rx(struct net_device *dev)
1610{
1611 struct smc_private *smc = netdev_priv(dev);
906da809 1612 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1613 int rx_status;
1614 int packet_length; /* Caution: not frame length, rather words
1615 to transfer from the chip. */
1616
1617 /* Assertion: we are in Window 2. */
1618
1619 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1620 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1621 dev->name);
1622 return;
1623 }
1624
1625 /* Reset the read pointer, and read the status and packet length. */
1626 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1627 rx_status = inw(ioaddr + DATA_1);
1628 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1629
1630 DEBUG(2, "%s: Receive status %4.4x length %d.\n",
1631 dev->name, rx_status, packet_length);
1632
1633 if (!(rx_status & RS_ERRORS)) {
1634 /* do stuff to make a new packet */
1635 struct sk_buff *skb;
1636
1637 /* Note: packet_length adds 5 or 6 extra bytes here! */
1638 skb = dev_alloc_skb(packet_length+2);
1639
1640 if (skb == NULL) {
1641 DEBUG(1, "%s: Low memory, packet dropped.\n", dev->name);
1642 smc->stats.rx_dropped++;
1643 outw(MC_RELEASE, ioaddr + MMU_CMD);
1644 return;
1645 }
1646
1647 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1648 skb_reserve(skb, 2);
1649 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1650 (packet_length+1)>>1);
1651 skb->protocol = eth_type_trans(skb, dev);
1652
1da177e4
LT		 1653 netif_rx(skb);
1654 dev->last_rx = jiffies;
1655 smc->stats.rx_packets++;
1656 smc->stats.rx_bytes += packet_length;
1657 if (rx_status & RS_MULTICAST)
1658 smc->stats.multicast++;
1659 } else {
1660 /* error ... */
1661 smc->stats.rx_errors++;
1662
1663 if (rx_status & RS_ALGNERR) smc->stats.rx_frame_errors++;
1664 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1665 smc->stats.rx_length_errors++;
1666 if (rx_status & RS_BADCRC) smc->stats.rx_crc_errors++;
1667 }
1668 /* Let the MMU free the memory of this packet. */
1669 outw(MC_RELEASE, ioaddr + MMU_CMD);
1670
1671 return;
1672}
1673
1674/*====================================================================*/
1675
1676static struct net_device_stats *smc_get_stats(struct net_device *dev)
1677{
1678 struct smc_private *smc = netdev_priv(dev);
1679 /* Nothing to update - the 91c92 is a pretty primative chip. */
1680 return &smc->stats;
1681}
1682
1683/*======================================================================
1684
1685 Calculate values for the hardware multicast filter hash table.
1686
1687======================================================================*/
1688
1689static void fill_multicast_tbl(int count, struct dev_mc_list *addrs,
1690 u_char *multicast_table)
1691{
1692 struct dev_mc_list *mc_addr;
1693
bb53d6d0 1694 for (mc_addr = addrs; mc_addr && count-- > 0; mc_addr = mc_addr->next) {
1da177e4
LT		 1695 u_int position = ether_crc(6, mc_addr->dmi_addr);
1696#ifndef final_version /* Verify multicast address. */
1697 if ((mc_addr->dmi_addr[0] & 1) == 0)
1698 continue;
1699#endif
1700 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1701 }
1702}
1703
1704/*======================================================================
1705
1706 Set the receive mode.
1707
1708 This routine is used by both the protocol level to notify us of
1709 promiscuous/multicast mode changes, and by the open/reset code to
1710 initialize the Rx registers. We always set the multicast list and
1711 leave the receiver running.
1712
1713======================================================================*/
1714
1715static void set_rx_mode(struct net_device *dev)
1716{
906da809 1717 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1718 struct smc_private *smc = netdev_priv(dev);
1719 u_int multicast_table[ 2 ] = { 0, };
1720 unsigned long flags;
1721 u_short rx_cfg_setting;
1722
1723 if (dev->flags & IFF_PROMISC) {
1da177e4
LT		 1724 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1725 } else if (dev->flags & IFF_ALLMULTI)
1726 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1727 else {
1728 if (dev->mc_count) {
1729 fill_multicast_tbl(dev->mc_count, dev->mc_list,
1730 (u_char *)multicast_table);
1731 }
1732 rx_cfg_setting = RxStripCRC | RxEnable;
1733 }
1734
1735 /* Load MC table and Rx setting into the chip without interrupts. */
1736 spin_lock_irqsave(&smc->lock, flags);
1737 SMC_SELECT_BANK(3);
1738 outl(multicast_table[0], ioaddr + MULTICAST0);
1739 outl(multicast_table[1], ioaddr + MULTICAST4);
1740 SMC_SELECT_BANK(0);
1741 outw(rx_cfg_setting, ioaddr + RCR);
1742 SMC_SELECT_BANK(2);
1743 spin_unlock_irqrestore(&smc->lock, flags);
1744
1745 return;
1746}
1747
1748/*======================================================================
1749
1750 Senses when a card's config changes. Here, it's coax or TP.
1751
1752======================================================================*/
1753
1754static int s9k_config(struct net_device *dev, struct ifmap *map)
1755{
1756 struct smc_private *smc = netdev_priv(dev);
1757 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1758 if (smc->cfg & CFG_MII_SELECT)
1759 return -EOPNOTSUPP;
1760 else if (map->port > 2)
1761 return -EINVAL;
1762 dev->if_port = map->port;
1763 printk(KERN_INFO "%s: switched to %s port\n",
1764 dev->name, if_names[dev->if_port]);
1765 smc_reset(dev);
1766 }
1767 return 0;
1768}
1769
1770/*======================================================================
1771
1772 Reset the chip, reloading every register that might be corrupted.
1773
1774======================================================================*/
1775
1776/*
1777 Set transceiver type, perhaps to something other than what the user
1778 specified in dev->if_port.
1779*/
1780static void smc_set_xcvr(struct net_device *dev, int if_port)
1781{
1782 struct smc_private *smc = netdev_priv(dev);
906da809 1783 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1784 u_short saved_bank;
1785
1786 saved_bank = inw(ioaddr + BANK_SELECT);
1787 SMC_SELECT_BANK(1);
1788 if (if_port == 2) {
1789 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1790 if ((smc->manfid == MANFID_OSITECH) &&
1791 (smc->cardid != PRODID_OSITECH_SEVEN))
1792 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1793 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1794 } else {
1795 outw(smc->cfg, ioaddr + CONFIG);
1796 if ((smc->manfid == MANFID_OSITECH) &&
1797 (smc->cardid != PRODID_OSITECH_SEVEN))
1798 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1799 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1800 }
1801 SMC_SELECT_BANK(saved_bank);
1802}
1803
1804static void smc_reset(struct net_device *dev)
1805{
906da809 1806 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1807 struct smc_private *smc = netdev_priv(dev);
1808 int i;
1809
1810 DEBUG(0, "%s: smc91c92 reset called.\n", dev->name);
1811
1812 /* The first interaction must be a write to bring the chip out
1813 of sleep mode. */
1814 SMC_SELECT_BANK(0);
1815 /* Reset the chip. */
1816 outw(RCR_SOFTRESET, ioaddr + RCR);
1817 udelay(10);
1818
1819 /* Clear the transmit and receive configuration registers. */
1820 outw(RCR_CLEAR, ioaddr + RCR);
1821 outw(TCR_CLEAR, ioaddr + TCR);
1822
1823 /* Set the Window 1 control, configuration and station addr registers.
1824 No point in writing the I/O base register ;-> */
1825 SMC_SELECT_BANK(1);
d6e05edc 1826 /* Automatically release successfully transmitted packets,
1da177e4
LT		 1827 Accept link errors, counter and Tx error interrupts. */
1828 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1829 ioaddr + CONTROL);
1830 smc_set_xcvr(dev, dev->if_port);
1831 if ((smc->manfid == MANFID_OSITECH) &&
1832 (smc->cardid != PRODID_OSITECH_SEVEN))
1833 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1834 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1835 ioaddr - 0x10 + OSITECH_AUI_PWR);
1836
1837 /* Fill in the physical address. The databook is wrong about the order! */
1838 for (i = 0; i < 6; i += 2)
1839 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1840 ioaddr + ADDR0 + i);
1841
1842 /* Reset the MMU */
1843 SMC_SELECT_BANK(2);
1844 outw(MC_RESET, ioaddr + MMU_CMD);
1845 outw(0, ioaddr + INTERRUPT);
1846
1847 /* Re-enable the chip. */
1848 SMC_SELECT_BANK(0);
1849 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1850 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1851 set_rx_mode(dev);
1852
1853 if (smc->cfg & CFG_MII_SELECT) {
1854 SMC_SELECT_BANK(3);
1855
1856 /* Reset MII */
1857 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1858
1859 /* Advertise 100F, 100H, 10F, 10H */
1860 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1861
1862 /* Restart MII autonegotiation */
1863 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1864 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1865 }
1866
1867 /* Enable interrupts. */
1868 SMC_SELECT_BANK(2);
1869 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1870 ioaddr + INTERRUPT);
1871}
1872
1873/*======================================================================
1874
1875 Media selection timer routine
1876
1877======================================================================*/
1878
1879static void media_check(u_long arg)
1880{
1881 struct net_device *dev = (struct net_device *) arg;
1882 struct smc_private *smc = netdev_priv(dev);
906da809 1883 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 1884 u_short i, media, saved_bank;
1885 u_short link;
85e27831
K		 1886 unsigned long flags;
1887
1888 spin_lock_irqsave(&smc->lock, flags);
1da177e4
LT		 1889
1890 saved_bank = inw(ioaddr + BANK_SELECT);
1891
1892 if (!netif_device_present(dev))
1893 goto reschedule;
1894
1895 SMC_SELECT_BANK(2);
1896
1897 /* need MC_RESET to keep the memory consistent. errata? */
1898 if (smc->rx_ovrn) {
1899 outw(MC_RESET, ioaddr + MMU_CMD);
1900 smc->rx_ovrn = 0;
1901 }
1902 i = inw(ioaddr + INTERRUPT);
1903 SMC_SELECT_BANK(0);
1904 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1905 SMC_SELECT_BANK(1);
1906 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1907
1908 /* Check for pending interrupt with watchdog flag set: with
1909 this, we can limp along even if the interrupt is blocked */
1910 if (smc->watchdog++ && ((i>>8) & i)) {
1911 if (!smc->fast_poll)
1912 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
e363d138 1913 smc_interrupt(dev->irq, dev);
1da177e4
LT		 1914 smc->fast_poll = HZ;
1915 }
1916 if (smc->fast_poll) {
1917 smc->fast_poll--;
1918 smc->media.expires = jiffies + HZ/100;
1919 add_timer(&smc->media);
1920 SMC_SELECT_BANK(saved_bank);
85e27831 1921 spin_unlock_irqrestore(&smc->lock, flags);
1da177e4
LT		 1922 return;
1923 }
1924
1925 if (smc->cfg & CFG_MII_SELECT) {
1926 if (smc->mii_if.phy_id < 0)
1927 goto reschedule;
1928
1929 SMC_SELECT_BANK(3);
1930 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1931 if (!link || (link == 0xffff)) {
1932 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1933 smc->mii_if.phy_id = -1;
1934 goto reschedule;
1935 }
1936
1937 link &= 0x0004;
1938 if (link != smc->link_status) {
1939 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1940 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1941 (link) ? "found" : "lost");
1942 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1943 ? TCR_FDUPLX : 0);
1944 if (link) {
1945 printk(KERN_INFO "%s: autonegotiation complete: "
1946 "%sbaseT-%cD selected\n", dev->name,
1947 ((p & 0x0180) ? "100" : "10"),
1948 (smc->duplex ? 'F' : 'H'));
1949 }
1950 SMC_SELECT_BANK(0);
1951 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1952 smc->link_status = link;
1953 }
1954 goto reschedule;
1955 }
1956
1957 /* Ignore collisions unless we've had no rx's recently */
4851d3aa 1958 if (time_after(jiffies, dev->last_rx + HZ)) {
1da177e4
LT		 1959 if (smc->tx_err || (smc->media_status & EPH_16COL))
1960 media |= EPH_16COL;
1961 }
1962 smc->tx_err = 0;
1963
1964 if (media != smc->media_status) {
1965 if ((media & smc->media_status & 1) &&
1966 ((smc->media_status ^ media) & EPH_LINK_OK))
1967 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1968 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1969 else if ((media & smc->media_status & 2) &&
1970 ((smc->media_status ^ media) & EPH_16COL))
1971 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1972 (media & EPH_16COL ? "problem" : "ok"));
1973 if (dev->if_port == 0) {
1974 if (media & 1) {
1975 if (media & EPH_LINK_OK)
1976 printk(KERN_INFO "%s: flipped to 10baseT\n",
1977 dev->name);
1978 else
1979 smc_set_xcvr(dev, 2);
1980 } else {
1981 if (media & EPH_16COL)
1982 smc_set_xcvr(dev, 1);
1983 else
1984 printk(KERN_INFO "%s: flipped to 10base2\n",
1985 dev->name);
1986 }
1987 }
1988 smc->media_status = media;
1989 }
1990
1991reschedule:
1992 smc->media.expires = jiffies + HZ;
1993 add_timer(&smc->media);
1994 SMC_SELECT_BANK(saved_bank);
85e27831 1995 spin_unlock_irqrestore(&smc->lock, flags);
1da177e4
LT		 1996}
1997
1998static int smc_link_ok(struct net_device *dev)
1999{
906da809 2000 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 2001 struct smc_private *smc = netdev_priv(dev);
2002
2003 if (smc->cfg & CFG_MII_SELECT) {
2004 return mii_link_ok(&smc->mii_if);
2005 } else {
2006 SMC_SELECT_BANK(0);
2007 return inw(ioaddr + EPH) & EPH_LINK_OK;
2008 }
2009}
2010
2011static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2012{
2013 u16 tmp;
906da809 2014 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 2015
2016 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
2017 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
2018
2019 SMC_SELECT_BANK(1);
2020 tmp = inw(ioaddr + CONFIG);
2021 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
2022 ecmd->transceiver = XCVR_INTERNAL;
2023 ecmd->speed = SPEED_10;
2024 ecmd->phy_address = ioaddr + MGMT;
2025
2026 SMC_SELECT_BANK(0);
2027 tmp = inw(ioaddr + TCR);
2028 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
2029
2030 return 0;
2031}
2032
2033static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2034{
2035 u16 tmp;
906da809 2036 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 2037
2038 if (ecmd->speed != SPEED_10)
2039 return -EINVAL;
2040 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
2041 return -EINVAL;
2042 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
2043 return -EINVAL;
2044 if (ecmd->transceiver != XCVR_INTERNAL)
2045 return -EINVAL;
2046
2047 if (ecmd->port == PORT_AUI)
2048 smc_set_xcvr(dev, 1);
2049 else
2050 smc_set_xcvr(dev, 0);
2051
2052 SMC_SELECT_BANK(0);
2053 tmp = inw(ioaddr + TCR);
2054 if (ecmd->duplex == DUPLEX_FULL)
2055 tmp |= TCR_FDUPLX;
2056 else
2057 tmp &= ~TCR_FDUPLX;
2058 outw(tmp, ioaddr + TCR);
2059
2060 return 0;
2061}
2062
2063static int check_if_running(struct net_device *dev)
2064{
2065 if (!netif_running(dev))
2066 return -EINVAL;
2067 return 0;
2068}
2069
2070static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
2071{
2072 strcpy(info->driver, DRV_NAME);
2073 strcpy(info->version, DRV_VERSION);
2074}
2075
2076static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2077{
2078 struct smc_private *smc = netdev_priv(dev);
906da809 2079 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 2080 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2081 int ret;
2082
1da177e4 2083 spin_lock_irq(&smc->lock);
85e27831 2084 SMC_SELECT_BANK(3);
1da177e4
LT		 2085 if (smc->cfg & CFG_MII_SELECT)
2086 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
2087 else
2088 ret = smc_netdev_get_ecmd(dev, ecmd);
1da177e4 2089 SMC_SELECT_BANK(saved_bank);
85e27831 2090 spin_unlock_irq(&smc->lock);
1da177e4
LT		 2091 return ret;
2092}
2093
2094static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2095{
2096 struct smc_private *smc = netdev_priv(dev);
906da809 2097 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 2098 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2099 int ret;
2100
1da177e4 2101 spin_lock_irq(&smc->lock);
85e27831 2102 SMC_SELECT_BANK(3);
1da177e4
LT		 2103 if (smc->cfg & CFG_MII_SELECT)
2104 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2105 else
2106 ret = smc_netdev_set_ecmd(dev, ecmd);
1da177e4 2107 SMC_SELECT_BANK(saved_bank);
85e27831 2108 spin_unlock_irq(&smc->lock);
1da177e4
LT		 2109 return ret;
2110}
2111
2112static u32 smc_get_link(struct net_device *dev)
2113{
2114 struct smc_private *smc = netdev_priv(dev);
906da809 2115 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 2116 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2117 u32 ret;
2118
1da177e4 2119 spin_lock_irq(&smc->lock);
85e27831 2120 SMC_SELECT_BANK(3);
1da177e4 2121 ret = smc_link_ok(dev);
1da177e4 2122 SMC_SELECT_BANK(saved_bank);
85e27831 2123 spin_unlock_irq(&smc->lock);
1da177e4
LT		 2124 return ret;
2125}
2126
2127#ifdef PCMCIA_DEBUG
2128static u32 smc_get_msglevel(struct net_device *dev)
2129{
2130 return pc_debug;
2131}
2132
2133static void smc_set_msglevel(struct net_device *dev, u32 val)
2134{
2135 pc_debug = val;
2136}
2137#endif
2138
2139static int smc_nway_reset(struct net_device *dev)
2140{
2141 struct smc_private *smc = netdev_priv(dev);
2142 if (smc->cfg & CFG_MII_SELECT) {
906da809 2143 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 2144 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2145 int res;
2146
2147 SMC_SELECT_BANK(3);
2148 res = mii_nway_restart(&smc->mii_if);
2149 SMC_SELECT_BANK(saved_bank);
2150
2151 return res;
2152 } else
2153 return -EOPNOTSUPP;
2154}
2155
7282d491 2156static const struct ethtool_ops ethtool_ops = {
1da177e4
LT		 2157 .begin = check_if_running,
2158 .get_drvinfo = smc_get_drvinfo,
2159 .get_settings = smc_get_settings,
2160 .set_settings = smc_set_settings,
2161 .get_link = smc_get_link,
2162#ifdef PCMCIA_DEBUG
2163 .get_msglevel = smc_get_msglevel,
2164 .set_msglevel = smc_set_msglevel,
2165#endif
2166 .nway_reset = smc_nway_reset,
2167};
2168
2169static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2170{
2171 struct smc_private *smc = netdev_priv(dev);
2172 struct mii_ioctl_data *mii = if_mii(rq);
2173 int rc = 0;
2174 u16 saved_bank;
906da809 2175 unsigned int ioaddr = dev->base_addr;
1da177e4
LT		 2176
2177 if (!netif_running(dev))
2178 return -EINVAL;
2179
2180 spin_lock_irq(&smc->lock);
2181 saved_bank = inw(ioaddr + BANK_SELECT);
2182 SMC_SELECT_BANK(3);
2183 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2184 SMC_SELECT_BANK(saved_bank);
2185 spin_unlock_irq(&smc->lock);
2186 return rc;
2187}
2188
5c672220
DB		 2189static struct pcmcia_device_id smc91c92_ids[] = {
2190 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2191 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2192 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2193 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2194 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2195 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2196 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2197 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
d277ad0e
K		 2198 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2199 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
5c672220
DB		 2200 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2201 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2202 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2203 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2204 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2205 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2206 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2207 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2208 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
d277ad0e
K		 2209 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2210 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
5c672220
DB		 2211 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2212 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2213 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2214 /* These conflict with other cards! */
2215 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2216 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2217 PCMCIA_DEVICE_NULL,
2218};
2219MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2220
1da177e4
LT		 2221static struct pcmcia_driver smc91c92_cs_driver = {
2222 .owner = THIS_MODULE,
2223 .drv = {
2224 .name = "smc91c92_cs",
2225 },
15b99ac1 2226 .probe = smc91c92_probe,
cc3b4866 2227 .remove = smc91c92_detach,
5c672220 2228 .id_table = smc91c92_ids,
98e4c28b
DB		 2229 .suspend = smc91c92_suspend,
2230 .resume = smc91c92_resume,
1da177e4
LT		 2231};
2232
2233static int __init init_smc91c92_cs(void)
2234{
2235 return pcmcia_register_driver(&smc91c92_cs_driver);
2236}
2237
2238static void __exit exit_smc91c92_cs(void)
2239{
2240 pcmcia_unregister_driver(&smc91c92_cs_driver);
1da177e4
LT		 2241}
2242
2243module_init(init_smc91c92_cs);
2244module_exit(exit_smc91c92_cs);
Linux 6.x block layer and io_uring tree(s)