1 /*======================================================================
3 A PCMCIA ethernet driver for SMC91c92-based cards.
5 This driver supports Megahertz PCMCIA ethernet cards; and
6 Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem
9 Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
11 smc91c92_cs.c 1.122 2002/10/25 06:26:39
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.
23 This software may be used and distributed according to the terms of
24 the GNU General Public License, incorporated herein by reference.
26 ======================================================================*/
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>
44 #include <linux/jiffies.h>
45 #include <linux/firmware.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>
52 #include <pcmcia/ss.h>
55 #include <asm/system.h>
56 #include <asm/uaccess.h>
58 /*====================================================================*/
60 static const char *if_names[] = { "auto", "10baseT", "10base2"};
63 #define FIRMWARE_NAME "ositech/Xilinx7OD.bin"
65 /* Module parameters */
67 MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
68 MODULE_LICENSE("GPL");
69 MODULE_FIRMWARE(FIRMWARE_NAME);
71 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
74 Transceiver/media type.
76 1 = 10baseT (and autoselect if #define AUTOSELECT),
79 INT_MODULE_PARM(if_port, 0);
82 #define DRV_NAME "smc91c92_cs"
83 #define DRV_VERSION "1.123"
85 /*====================================================================*/
87 /* Operational parameter that usually are not changed. */
89 /* Time in jiffies before concluding Tx hung */
90 #define TX_TIMEOUT ((400*HZ)/1000)
92 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
95 /* Times to check the check the chip before concluding that it doesn't
96 currently have room for another Tx packet. */
97 #define MEMORY_WAIT_TIME 8
100 struct pcmcia_device *p_dev;
105 struct sk_buff *saved_skb;
109 struct timer_list media;
110 int watchdog, tx_err;
111 u_short media_status;
114 struct mii_if_info mii_if;
119 /* Special definitions for Megahertz multifunction cards */
120 #define MEGAHERTZ_ISR 0x0380
122 /* Special function registers for Motorola Mariner */
123 #define MOT_LAN 0x0000
124 #define MOT_UART 0x0020
125 #define MOT_EEPROM 0x20
128 (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
130 /* Special function registers for Ositech cards */
131 #define OSITECH_AUI_CTL 0x0c
132 #define OSITECH_PWRDOWN 0x0d
133 #define OSITECH_RESET 0x0e
134 #define OSITECH_ISR 0x0f
135 #define OSITECH_AUI_PWR 0x0c
136 #define OSITECH_RESET_ISR 0x0e
138 #define OSI_AUI_PWR 0x40
139 #define OSI_LAN_PWRDOWN 0x02
140 #define OSI_MODEM_PWRDOWN 0x01
141 #define OSI_LAN_RESET 0x02
142 #define OSI_MODEM_RESET 0x01
144 /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
145 #define BANK_SELECT 14 /* Window select register. */
146 #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
148 /* Bank 0 registers. */
149 #define TCR 0 /* transmit control register */
150 #define TCR_CLEAR 0 /* do NOTHING */
151 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
152 #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
153 #define TCR_MONCSN 0x0400 /* Monitor Carrier. */
154 #define TCR_FDUPLX 0x0800 /* Full duplex mode. */
155 #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
157 #define EPH 2 /* Ethernet Protocol Handler report. */
158 #define EPH_TX_SUC 0x0001
159 #define EPH_SNGLCOL 0x0002
160 #define EPH_MULCOL 0x0004
161 #define EPH_LTX_MULT 0x0008
162 #define EPH_16COL 0x0010
163 #define EPH_SQET 0x0020
164 #define EPH_LTX_BRD 0x0040
165 #define EPH_TX_DEFR 0x0080
166 #define EPH_LAT_COL 0x0200
167 #define EPH_LOST_CAR 0x0400
168 #define EPH_EXC_DEF 0x0800
169 #define EPH_CTR_ROL 0x1000
170 #define EPH_RX_OVRN 0x2000
171 #define EPH_LINK_OK 0x4000
172 #define EPH_TX_UNRN 0x8000
173 #define MEMINFO 8 /* Memory Information Register */
174 #define MEMCFG 10 /* Memory Configuration Register */
176 /* Bank 1 registers. */
178 #define CFG_MII_SELECT 0x8000 /* 91C100 only */
179 #define CFG_NO_WAIT 0x1000
180 #define CFG_FULL_STEP 0x0400
181 #define CFG_SET_SQLCH 0x0200
182 #define CFG_AUI_SELECT 0x0100
183 #define CFG_16BIT 0x0080
184 #define CFG_DIS_LINK 0x0040
185 #define CFG_STATIC 0x0030
186 #define CFG_IRQ_SEL_1 0x0004
187 #define CFG_IRQ_SEL_0 0x0002
192 #define CTL_STORE 0x0001
193 #define CTL_RELOAD 0x0002
194 #define CTL_EE_SELECT 0x0004
195 #define CTL_TE_ENABLE 0x0020
196 #define CTL_CR_ENABLE 0x0040
197 #define CTL_LE_ENABLE 0x0080
198 #define CTL_AUTO_RELEASE 0x0800
199 #define CTL_POWERDOWN 0x2000
201 /* Bank 2 registers. */
203 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
204 #define MC_RESET 0x40
205 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
206 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
207 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
210 #define FP_RXEMPTY 0x8000
212 #define PTR_AUTO_INC 0x0040
213 #define PTR_READ 0x2000
214 #define PTR_AUTOINC 0x4000
215 #define PTR_RCV 0x8000
218 #define IM_RCV_INT 0x1
219 #define IM_TX_INT 0x2
220 #define IM_TX_EMPTY_INT 0x4
221 #define IM_ALLOC_INT 0x8
222 #define IM_RX_OVRN_INT 0x10
223 #define IM_EPH_INT 0x20
226 enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
227 RxEnable = 0x0100, RxStripCRC = 0x0200};
228 #define RCR_SOFTRESET 0x8000 /* resets the chip */
229 #define RCR_STRIP_CRC 0x200 /* strips CRC */
230 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
231 #define RCR_ALMUL 0x4 /* receive all multicast packets */
232 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
234 /* the normal settings for the RCR register : */
235 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
236 #define RCR_CLEAR 0x0 /* set it to a base state */
239 /* BANK 3 -- not the same values as in smc9194! */
245 #define REVISION 0x0a
247 /* Transmit status bits. */
248 #define TS_SUCCESS 0x0001
249 #define TS_16COL 0x0010
250 #define TS_LATCOL 0x0200
251 #define TS_LOSTCAR 0x0400
253 /* Receive status bits. */
254 #define RS_ALGNERR 0x8000
255 #define RS_BADCRC 0x2000
256 #define RS_ODDFRAME 0x1000
257 #define RS_TOOLONG 0x0800
258 #define RS_TOOSHORT 0x0400
259 #define RS_MULTICAST 0x0001
260 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
262 #define set_bits(v, p) outw(inw(p)|(v), (p))
263 #define mask_bits(v, p) outw(inw(p)&(v), (p))
265 /*====================================================================*/
267 static void smc91c92_detach(struct pcmcia_device *p_dev);
268 static int smc91c92_config(struct pcmcia_device *link);
269 static void smc91c92_release(struct pcmcia_device *link);
271 static int smc_open(struct net_device *dev);
272 static int smc_close(struct net_device *dev);
273 static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
274 static void smc_tx_timeout(struct net_device *dev);
275 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
276 struct net_device *dev);
277 static irqreturn_t smc_interrupt(int irq, void *dev_id);
278 static void smc_rx(struct net_device *dev);
279 static void set_rx_mode(struct net_device *dev);
280 static int s9k_config(struct net_device *dev, struct ifmap *map);
281 static void smc_set_xcvr(struct net_device *dev, int if_port);
282 static void smc_reset(struct net_device *dev);
283 static void media_check(u_long arg);
284 static void mdio_sync(unsigned int addr);
285 static int mdio_read(struct net_device *dev, int phy_id, int loc);
286 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
287 static int smc_link_ok(struct net_device *dev);
288 static const struct ethtool_ops ethtool_ops;
290 static const struct net_device_ops smc_netdev_ops = {
291 .ndo_open = smc_open,
292 .ndo_stop = smc_close,
293 .ndo_start_xmit = smc_start_xmit,
294 .ndo_tx_timeout = smc_tx_timeout,
295 .ndo_set_config = s9k_config,
296 .ndo_set_multicast_list = set_rx_mode,
297 .ndo_do_ioctl = &smc_ioctl,
298 .ndo_change_mtu = eth_change_mtu,
299 .ndo_set_mac_address = eth_mac_addr,
300 .ndo_validate_addr = eth_validate_addr,
303 /*======================================================================
305 smc91c92_attach() creates an "instance" of the driver, allocating
306 local data structures for one device. The device is registered
309 ======================================================================*/
311 static int smc91c92_probe(struct pcmcia_device *link)
313 struct smc_private *smc;
314 struct net_device *dev;
316 dev_dbg(&link->dev, "smc91c92_attach()\n");
318 /* Create new ethernet device */
319 dev = alloc_etherdev(sizeof(struct smc_private));
322 smc = netdev_priv(dev);
326 spin_lock_init(&smc->lock);
327 link->resource[0]->end = 16;
328 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
329 link->conf.Attributes = CONF_ENABLE_IRQ;
330 link->conf.IntType = INT_MEMORY_AND_IO;
332 /* The SMC91c92-specific entries in the device structure. */
333 dev->netdev_ops = &smc_netdev_ops;
334 SET_ETHTOOL_OPS(dev, ðtool_ops);
335 dev->watchdog_timeo = TX_TIMEOUT;
337 smc->mii_if.dev = dev;
338 smc->mii_if.mdio_read = mdio_read;
339 smc->mii_if.mdio_write = mdio_write;
340 smc->mii_if.phy_id_mask = 0x1f;
341 smc->mii_if.reg_num_mask = 0x1f;
343 return smc91c92_config(link);
344 } /* smc91c92_attach */
346 /*======================================================================
348 This deletes a driver "instance". The device is de-registered
349 with Card Services. If it has been released, all local data
350 structures are freed. Otherwise, the structures will be freed
351 when the device is released.
353 ======================================================================*/
355 static void smc91c92_detach(struct pcmcia_device *link)
357 struct net_device *dev = link->priv;
359 dev_dbg(&link->dev, "smc91c92_detach\n");
361 unregister_netdev(dev);
363 smc91c92_release(link);
366 } /* smc91c92_detach */
368 /*====================================================================*/
370 static int cvt_ascii_address(struct net_device *dev, char *s)
376 for (i = 0; i < 6; i++) {
378 for (j = 0; j < 2; j++) {
381 da += ((c >= '0') && (c <= '9')) ?
382 (c - '0') : ((c & 0x0f) + 9);
384 dev->dev_addr[i] = da;
389 /*====================================================================
391 Configuration stuff for Megahertz cards
393 mhz_3288_power() is used to power up a 3288's ethernet chip.
394 mhz_mfc_config() handles socket setup for multifunction (1144
395 and 3288) cards. mhz_setup() gets a card's hardware ethernet
398 ======================================================================*/
400 static int mhz_3288_power(struct pcmcia_device *link)
402 struct net_device *dev = link->priv;
403 struct smc_private *smc = netdev_priv(dev);
406 /* Read the ISR twice... */
407 readb(smc->base+MEGAHERTZ_ISR);
409 readb(smc->base+MEGAHERTZ_ISR);
414 /* Now read and write the COR... */
415 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
417 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
422 static int mhz_mfc_config_check(struct pcmcia_device *p_dev,
423 cistpl_cftable_entry_t *cf,
424 cistpl_cftable_entry_t *dflt,
429 p_dev->resource[1]->start = cf->io.win[0].base;
430 for (k = 0; k < 0x400; k += 0x10) {
433 p_dev->resource[0]->start = k ^ 0x300;
434 p_dev->io_lines = 16;
435 if (!pcmcia_request_io(p_dev))
441 static int mhz_mfc_config(struct pcmcia_device *link)
443 struct net_device *dev = link->priv;
444 struct smc_private *smc = netdev_priv(dev);
448 link->conf.Attributes |= CONF_ENABLE_SPKR;
449 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
450 link->resource[1]->end = 8;
452 /* The Megahertz combo cards have modem-like CIS entries, so
453 we have to explicitly try a bunch of port combinations. */
454 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
457 dev->base_addr = link->resource[0]->start;
459 /* Allocate a memory window, for accessing the ISR */
460 link->resource[2]->flags = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
461 link->resource[2]->start = link->resource[2]->end = 0;
462 i = pcmcia_request_window(link, link->resource[2], 0);
466 smc->base = ioremap(link->resource[2]->start,
467 resource_size(link->resource[2]));
468 offset = (smc->manfid == MANFID_MOTOROLA) ? link->conf.ConfigBase : 0;
469 i = pcmcia_map_mem_page(link, link->resource[2], offset);
471 (smc->manfid == MANFID_MEGAHERTZ) &&
472 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
473 mhz_3288_power(link);
478 static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
482 struct net_device *dev = priv;
486 if (pcmcia_parse_tuple(tuple, &parse))
489 buf = parse.version_1.str + parse.version_1.ofs[3];
491 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
497 static int mhz_setup(struct pcmcia_device *link)
499 struct net_device *dev = link->priv;
504 /* Read the station address from the CIS. It is stored as the last
505 (fourth) string in the Version 1 Version/ID tuple. */
506 if ((link->prod_id[3]) &&
507 (cvt_ascii_address(dev, link->prod_id[3]) == 0))
510 /* Workarounds for broken cards start here. */
511 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
512 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
515 /* Another possibility: for the EM3288, in a special tuple */
517 len = pcmcia_get_tuple(link, 0x81, &buf);
518 if (buf && len >= 13) {
520 if (cvt_ascii_address(dev, buf) == 0)
528 /*======================================================================
530 Configuration stuff for the Motorola Mariner
532 mot_config() writes directly to the Mariner configuration
533 registers because the CIS is just bogus.
535 ======================================================================*/
537 static void mot_config(struct pcmcia_device *link)
539 struct net_device *dev = link->priv;
540 struct smc_private *smc = netdev_priv(dev);
541 unsigned int ioaddr = dev->base_addr;
542 unsigned int iouart = link->resource[1]->start;
544 /* Set UART base address and force map with COR bit 1 */
545 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
546 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
547 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
549 /* Set SMC base address and force map with COR bit 1 */
550 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
551 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
552 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
554 /* Wait for things to settle down */
558 static int mot_setup(struct pcmcia_device *link)
560 struct net_device *dev = link->priv;
561 unsigned int ioaddr = dev->base_addr;
565 /* Read Ethernet address from Serial EEPROM */
567 for (i = 0; i < 3; i++) {
569 outw(MOT_EEPROM + i, ioaddr + POINTER);
571 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
573 for (loop = wait = 0; loop < 200; loop++) {
575 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
576 if (wait == 0) break;
582 addr = inw(ioaddr + GENERAL);
583 dev->dev_addr[2*i] = addr & 0xff;
584 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
590 /*====================================================================*/
592 static int smc_configcheck(struct pcmcia_device *p_dev,
593 cistpl_cftable_entry_t *cf,
594 cistpl_cftable_entry_t *dflt,
598 p_dev->resource[0]->start = cf->io.win[0].base;
599 p_dev->io_lines = cf->io.flags & CISTPL_IO_LINES_MASK;
600 return pcmcia_request_io(p_dev);
603 static int smc_config(struct pcmcia_device *link)
605 struct net_device *dev = link->priv;
608 link->resource[0]->end = 16;
609 i = pcmcia_loop_config(link, smc_configcheck, NULL);
611 dev->base_addr = link->resource[0]->start;
617 static int smc_setup(struct pcmcia_device *link)
619 struct net_device *dev = link->priv;
621 /* Check for a LAN function extension tuple */
622 if (!pcmcia_get_mac_from_cis(link, dev))
625 /* Try the third string in the Version 1 Version/ID tuple. */
626 if (link->prod_id[2]) {
627 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
633 /*====================================================================*/
635 static int osi_config(struct pcmcia_device *link)
637 struct net_device *dev = link->priv;
638 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
641 link->conf.Attributes |= CONF_ENABLE_SPKR;
642 link->resource[0]->end = 64;
643 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
644 link->resource[1]->end = 8;
646 /* Enable Hard Decode, LAN, Modem */
647 link->conf.ConfigIndex = 0x23;
650 for (i = j = 0; j < 4; j++) {
651 link->resource[1]->start = com[j];
652 i = pcmcia_request_io(link);
657 /* Fallback: turn off hard decode */
658 link->conf.ConfigIndex = 0x03;
659 link->resource[1]->end = 0;
660 i = pcmcia_request_io(link);
662 dev->base_addr = link->resource[0]->start + 0x10;
666 static int osi_load_firmware(struct pcmcia_device *link)
668 const struct firmware *fw;
671 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
673 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
677 /* Download the Seven of Diamonds firmware */
678 for (i = 0; i < fw->size; i++) {
679 outb(fw->data[i], link->resource[0]->start + 2);
682 release_firmware(fw);
686 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
690 struct net_device *dev = priv;
693 if (tuple->TupleDataLen < 8)
695 if (tuple->TupleData[0] != 0x04)
697 for (i = 0; i < 6; i++)
698 dev->dev_addr[i] = tuple->TupleData[i+2];
703 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
705 struct net_device *dev = link->priv;
708 /* Read the station address from tuple 0x90, subtuple 0x04 */
709 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
712 if (((manfid == MANFID_OSITECH) &&
713 (cardid == PRODID_OSITECH_SEVEN)) ||
714 ((manfid == MANFID_PSION) &&
715 (cardid == PRODID_PSION_NET100))) {
716 rc = osi_load_firmware(link);
719 } else if (manfid == MANFID_OSITECH) {
720 /* Make sure both functions are powered up */
721 set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR);
722 /* Now, turn on the interrupt for both card functions */
723 set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR);
724 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
725 inw(link->resource[0]->start + OSITECH_AUI_PWR),
726 inw(link->resource[0]->start + OSITECH_RESET_ISR));
731 static int smc91c92_suspend(struct pcmcia_device *link)
733 struct net_device *dev = link->priv;
736 netif_device_detach(dev);
741 static int smc91c92_resume(struct pcmcia_device *link)
743 struct net_device *dev = link->priv;
744 struct smc_private *smc = netdev_priv(dev);
747 if ((smc->manfid == MANFID_MEGAHERTZ) &&
748 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
749 mhz_3288_power(link);
750 if (smc->manfid == MANFID_MOTOROLA)
752 if ((smc->manfid == MANFID_OSITECH) &&
753 (smc->cardid != PRODID_OSITECH_SEVEN)) {
754 /* Power up the card and enable interrupts */
755 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
756 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
758 if (((smc->manfid == MANFID_OSITECH) &&
759 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
760 ((smc->manfid == MANFID_PSION) &&
761 (smc->cardid == PRODID_PSION_NET100))) {
762 i = osi_load_firmware(link);
764 pr_err("smc91c92_cs: Failed to load firmware\n");
770 netif_device_attach(dev);
777 /*======================================================================
779 This verifies that the chip is some SMC91cXX variant, and returns
780 the revision code if successful. Otherwise, it returns -ENODEV.
782 ======================================================================*/
784 static int check_sig(struct pcmcia_device *link)
786 struct net_device *dev = link->priv;
787 unsigned int ioaddr = dev->base_addr;
792 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
793 /* Try powering up the chip */
794 outw(0, ioaddr + CONTROL);
798 /* Try setting bus width */
799 width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO);
800 s = inb(ioaddr + CONFIG);
805 outb(s, ioaddr + CONFIG);
807 /* Check Base Address Register to make sure bus width is OK */
808 s = inw(ioaddr + BASE_ADDR);
809 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
810 ((s >> 8) != (s & 0xff))) {
812 s = inw(ioaddr + REVISION);
817 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
819 smc91c92_suspend(link);
820 pcmcia_fixup_iowidth(link);
821 smc91c92_resume(link);
822 return check_sig(link);
827 /*======================================================================
829 smc91c92_config() is scheduled to run after a CARD_INSERTION event
830 is received, to configure the PCMCIA socket, and to make the
831 ethernet device available to the system.
833 ======================================================================*/
835 static int smc91c92_config(struct pcmcia_device *link)
837 struct net_device *dev = link->priv;
838 struct smc_private *smc = netdev_priv(dev);
844 dev_dbg(&link->dev, "smc91c92_config\n");
846 smc->manfid = link->manf_id;
847 smc->cardid = link->card_id;
849 if ((smc->manfid == MANFID_OSITECH) &&
850 (smc->cardid != PRODID_OSITECH_SEVEN)) {
851 i = osi_config(link);
852 } else if ((smc->manfid == MANFID_MOTOROLA) ||
853 ((smc->manfid == MANFID_MEGAHERTZ) &&
854 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
855 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
856 i = mhz_mfc_config(link);
858 i = smc_config(link);
863 i = pcmcia_request_irq(link, smc_interrupt);
866 i = pcmcia_request_configuration(link, &link->conf);
870 if (smc->manfid == MANFID_MOTOROLA)
873 dev->irq = link->irq;
875 if ((if_port >= 0) && (if_port <= 2))
876 dev->if_port = if_port;
878 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
880 switch (smc->manfid) {
883 i = osi_setup(link, smc->manfid, smc->cardid); break;
885 case MANFID_NEW_MEDIA:
886 i = smc_setup(link); break;
887 case 0x128: /* For broken Megahertz cards */
888 case MANFID_MEGAHERTZ:
889 i = mhz_setup(link); break;
890 case MANFID_MOTOROLA:
891 default: /* get the hw address from EEPROM */
892 i = mot_setup(link); break;
896 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
903 rev = check_sig(link);
907 case 3: name = "92"; break;
908 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
909 case 5: name = "95"; break;
910 case 7: name = "100"; break;
911 case 8: name = "100-FD"; break;
912 case 9: name = "110"; break;
915 ioaddr = dev->base_addr;
919 mir = inw(ioaddr + MEMINFO) & 0xff;
920 if (mir == 0xff) mir++;
921 /* Get scale factor for memory size */
922 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
923 mir *= 128 * (1<<((mcr >> 9) & 7));
925 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
926 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
927 if (smc->manfid == MANFID_OSITECH)
928 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
930 smc->cfg |= CFG_MII_SELECT;
934 if (smc->cfg & CFG_MII_SELECT) {
937 for (i = 0; i < 32; i++) {
938 j = mdio_read(dev, i, 1);
939 if ((j != 0) && (j != 0xffff)) break;
941 smc->mii_if.phy_id = (i < 32) ? i : -1;
946 SET_NETDEV_DEV(dev, &link->dev);
948 if (register_netdev(dev) != 0) {
949 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
953 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
955 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
960 printk(KERN_INFO " %lu byte", mir);
962 printk(KERN_INFO " %lu kb", mir>>10);
963 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
964 "MII" : if_names[dev->if_port]);
967 if (smc->cfg & CFG_MII_SELECT) {
968 if (smc->mii_if.phy_id != -1) {
969 dev_dbg(&link->dev, " MII transceiver at index %d, status %x.\n",
970 smc->mii_if.phy_id, j);
972 printk(KERN_NOTICE " No MII transceivers found!\n");
978 unregister_netdev(dev);
980 smc91c92_release(link);
983 } /* smc91c92_config */
985 /*======================================================================
987 After a card is removed, smc91c92_release() will unregister the net
988 device, and release the PCMCIA configuration. If the device is
989 still open, this will be postponed until it is closed.
991 ======================================================================*/
993 static void smc91c92_release(struct pcmcia_device *link)
995 dev_dbg(&link->dev, "smc91c92_release\n");
996 if (link->resource[2]->end) {
997 struct net_device *dev = link->priv;
998 struct smc_private *smc = netdev_priv(dev);
1001 pcmcia_disable_device(link);
1004 /*======================================================================
1006 MII interface support for SMC91cXX based cards
1007 ======================================================================*/
1009 #define MDIO_SHIFT_CLK 0x04
1010 #define MDIO_DATA_OUT 0x01
1011 #define MDIO_DIR_WRITE 0x08
1012 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1013 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1014 #define MDIO_DATA_READ 0x02
1016 static void mdio_sync(unsigned int addr)
1019 for (bits = 0; bits < 32; bits++) {
1020 outb(MDIO_DATA_WRITE1, addr);
1021 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1025 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1027 unsigned int addr = dev->base_addr + MGMT;
1028 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1032 for (i = 13; i >= 0; i--) {
1033 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1035 outb(dat | MDIO_SHIFT_CLK, addr);
1037 for (i = 19; i > 0; i--) {
1039 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1040 outb(MDIO_SHIFT_CLK, addr);
1042 return (retval>>1) & 0xffff;
1045 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1047 unsigned int addr = dev->base_addr + MGMT;
1048 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1052 for (i = 31; i >= 0; i--) {
1053 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1055 outb(dat | MDIO_SHIFT_CLK, addr);
1057 for (i = 1; i >= 0; i--) {
1059 outb(MDIO_SHIFT_CLK, addr);
1063 /*======================================================================
1065 The driver core code, most of which should be common with a
1066 non-PCMCIA implementation.
1068 ======================================================================*/
1071 static void smc_dump(struct net_device *dev)
1073 unsigned int ioaddr = dev->base_addr;
1075 save = inw(ioaddr + BANK_SELECT);
1076 for (w = 0; w < 4; w++) {
1078 printk(KERN_DEBUG "bank %d: ", w);
1079 for (i = 0; i < 14; i += 2)
1080 printk(" %04x", inw(ioaddr + i));
1083 outw(save, ioaddr + BANK_SELECT);
1087 static int smc_open(struct net_device *dev)
1089 struct smc_private *smc = netdev_priv(dev);
1090 struct pcmcia_device *link = smc->p_dev;
1092 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1093 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1098 /* Check that the PCMCIA card is still here. */
1099 if (!pcmcia_dev_present(link))
1101 /* Physical device present signature. */
1102 if (check_sig(link) < 0) {
1103 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1108 netif_start_queue(dev);
1109 smc->saved_skb = NULL;
1110 smc->packets_waiting = 0;
1113 init_timer(&smc->media);
1114 smc->media.function = &media_check;
1115 smc->media.data = (u_long) dev;
1116 smc->media.expires = jiffies + HZ;
1117 add_timer(&smc->media);
1122 /*====================================================================*/
1124 static int smc_close(struct net_device *dev)
1126 struct smc_private *smc = netdev_priv(dev);
1127 struct pcmcia_device *link = smc->p_dev;
1128 unsigned int ioaddr = dev->base_addr;
1130 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1131 dev->name, inw(ioaddr + BANK_SELECT));
1133 netif_stop_queue(dev);
1135 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1136 Don't bother to check for chip present. */
1137 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1138 outw(0, ioaddr + INTERRUPT);
1140 mask_bits(0xff00, ioaddr + RCR);
1141 mask_bits(0xff00, ioaddr + TCR);
1143 /* Put the chip into power-down mode. */
1145 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1148 del_timer_sync(&smc->media);
1153 /*======================================================================
1155 Transfer a packet to the hardware and trigger the packet send.
1156 This may be called at either from either the Tx queue code
1157 or the interrupt handler.
1159 ======================================================================*/
1161 static void smc_hardware_send_packet(struct net_device * dev)
1163 struct smc_private *smc = netdev_priv(dev);
1164 struct sk_buff *skb = smc->saved_skb;
1165 unsigned int ioaddr = dev->base_addr;
1169 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1173 /* There should be a packet slot waiting. */
1174 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1175 if (packet_no & 0x80) {
1176 /* If not, there is a hardware problem! Likely an ejected card. */
1177 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1178 " failed, status %#2.2x.\n", dev->name, packet_no);
1179 dev_kfree_skb_irq(skb);
1180 smc->saved_skb = NULL;
1181 netif_start_queue(dev);
1185 dev->stats.tx_bytes += skb->len;
1186 /* The card should use the just-allocated buffer. */
1187 outw(packet_no, ioaddr + PNR_ARR);
1188 /* point to the beginning of the packet */
1189 outw(PTR_AUTOINC , ioaddr + POINTER);
1191 /* Send the packet length (+6 for status, length and ctl byte)
1192 and the status word (set to zeros). */
1194 u_char *buf = skb->data;
1195 u_int length = skb->len; /* The chip will pad to ethernet min. */
1197 pr_debug("%s: Trying to xmit packet of length %d.\n",
1200 /* send the packet length: +6 for status word, length, and ctl */
1201 outw(0, ioaddr + DATA_1);
1202 outw(length + 6, ioaddr + DATA_1);
1203 outsw(ioaddr + DATA_1, buf, length >> 1);
1205 /* The odd last byte, if there is one, goes in the control word. */
1206 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1209 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1210 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1211 (inw(ioaddr + INTERRUPT) & 0xff00),
1212 ioaddr + INTERRUPT);
1214 /* The chip does the rest of the work. */
1215 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1217 smc->saved_skb = NULL;
1218 dev_kfree_skb_irq(skb);
1219 dev->trans_start = jiffies;
1220 netif_start_queue(dev);
1223 /*====================================================================*/
1225 static void smc_tx_timeout(struct net_device *dev)
1227 struct smc_private *smc = netdev_priv(dev);
1228 unsigned int ioaddr = dev->base_addr;
1230 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1231 "Tx_status %2.2x status %4.4x.\n",
1232 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1233 dev->stats.tx_errors++;
1235 dev->trans_start = jiffies; /* prevent tx timeout */
1236 smc->saved_skb = NULL;
1237 netif_wake_queue(dev);
1240 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1241 struct net_device *dev)
1243 struct smc_private *smc = netdev_priv(dev);
1244 unsigned int ioaddr = dev->base_addr;
1247 unsigned long flags;
1249 netif_stop_queue(dev);
1251 pr_debug("%s: smc_start_xmit(length = %d) called,"
1252 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1254 if (smc->saved_skb) {
1255 /* THIS SHOULD NEVER HAPPEN. */
1256 dev->stats.tx_aborted_errors++;
1257 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1259 return NETDEV_TX_BUSY;
1261 smc->saved_skb = skb;
1263 num_pages = skb->len >> 8;
1265 if (num_pages > 7) {
1266 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1267 dev_kfree_skb (skb);
1268 smc->saved_skb = NULL;
1269 dev->stats.tx_dropped++;
1270 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1272 /* A packet is now waiting. */
1273 smc->packets_waiting++;
1275 spin_lock_irqsave(&smc->lock, flags);
1276 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1278 /* need MC_RESET to keep the memory consistent. errata? */
1280 outw(MC_RESET, ioaddr + MMU_CMD);
1284 /* Allocate the memory; send the packet now if we win. */
1285 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1286 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1287 ir = inw(ioaddr+INTERRUPT);
1288 if (ir & IM_ALLOC_INT) {
1289 /* Acknowledge the interrupt, send the packet. */
1290 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1291 smc_hardware_send_packet(dev); /* Send the packet now.. */
1292 spin_unlock_irqrestore(&smc->lock, flags);
1293 return NETDEV_TX_OK;
1297 /* Otherwise defer until the Tx-space-allocated interrupt. */
1298 pr_debug("%s: memory allocation deferred.\n", dev->name);
1299 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1300 spin_unlock_irqrestore(&smc->lock, flags);
1302 return NETDEV_TX_OK;
1305 /*======================================================================
1307 Handle a Tx anomolous event. Entered while in Window 2.
1309 ======================================================================*/
1311 static void smc_tx_err(struct net_device * dev)
1313 struct smc_private *smc = netdev_priv(dev);
1314 unsigned int ioaddr = dev->base_addr;
1315 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1316 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1319 /* select this as the packet to read from */
1320 outw(packet_no, ioaddr + PNR_ARR);
1322 /* read the first word from this packet */
1323 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1325 tx_status = inw(ioaddr + DATA_1);
1327 dev->stats.tx_errors++;
1328 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1329 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1330 if (tx_status & TS_16COL) {
1331 dev->stats.tx_aborted_errors++;
1335 if (tx_status & TS_SUCCESS) {
1336 printk(KERN_NOTICE "%s: Successful packet caused error "
1337 "interrupt?\n", dev->name);
1339 /* re-enable transmit */
1341 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1344 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1346 /* one less packet waiting for me */
1347 smc->packets_waiting--;
1349 outw(saved_packet, ioaddr + PNR_ARR);
1352 /*====================================================================*/
1354 static void smc_eph_irq(struct net_device *dev)
1356 struct smc_private *smc = netdev_priv(dev);
1357 unsigned int ioaddr = dev->base_addr;
1358 u_short card_stats, ephs;
1361 ephs = inw(ioaddr + EPH);
1362 pr_debug("%s: Ethernet protocol handler interrupt, status"
1363 " %4.4x.\n", dev->name, ephs);
1364 /* Could be a counter roll-over warning: update stats. */
1365 card_stats = inw(ioaddr + COUNTER);
1366 /* single collisions */
1367 dev->stats.collisions += card_stats & 0xF;
1369 /* multiple collisions */
1370 dev->stats.collisions += card_stats & 0xF;
1371 #if 0 /* These are for when linux supports these statistics */
1372 card_stats >>= 4; /* deferred */
1373 card_stats >>= 4; /* excess deferred */
1375 /* If we had a transmit error we must re-enable the transmitter. */
1376 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1378 /* Clear a link error interrupt. */
1380 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1381 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1386 /*====================================================================*/
1388 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1390 struct net_device *dev = dev_id;
1391 struct smc_private *smc = netdev_priv(dev);
1392 unsigned int ioaddr;
1393 u_short saved_bank, saved_pointer, mask, status;
1394 unsigned int handled = 1;
1395 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1397 if (!netif_device_present(dev))
1400 ioaddr = dev->base_addr;
1402 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1405 spin_lock(&smc->lock);
1407 saved_bank = inw(ioaddr + BANK_SELECT);
1408 if ((saved_bank & 0xff00) != 0x3300) {
1409 /* The device does not exist -- the card could be off-line, or
1410 maybe it has been ejected. */
1411 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1412 "/ejected device.\n", dev->name, irq);
1418 saved_pointer = inw(ioaddr + POINTER);
1419 mask = inw(ioaddr + INTERRUPT) >> 8;
1420 /* clear all interrupts */
1421 outw(0, ioaddr + INTERRUPT);
1423 do { /* read the status flag, and mask it */
1424 status = inw(ioaddr + INTERRUPT) & 0xff;
1425 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1427 if ((status & mask) == 0) {
1428 if (bogus_cnt == INTR_WORK)
1432 if (status & IM_RCV_INT) {
1433 /* Got a packet(s). */
1436 if (status & IM_TX_INT) {
1438 outw(IM_TX_INT, ioaddr + INTERRUPT);
1441 if (status & IM_TX_EMPTY_INT) {
1442 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1443 mask &= ~IM_TX_EMPTY_INT;
1444 dev->stats.tx_packets += smc->packets_waiting;
1445 smc->packets_waiting = 0;
1447 if (status & IM_ALLOC_INT) {
1448 /* Clear this interrupt so it doesn't happen again */
1449 mask &= ~IM_ALLOC_INT;
1451 smc_hardware_send_packet(dev);
1453 /* enable xmit interrupts based on this */
1454 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1456 /* and let the card send more packets to me */
1457 netif_wake_queue(dev);
1459 if (status & IM_RX_OVRN_INT) {
1460 dev->stats.rx_errors++;
1461 dev->stats.rx_fifo_errors++;
1463 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1464 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1466 if (status & IM_EPH_INT)
1468 } while (--bogus_cnt);
1470 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1471 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1473 /* restore state register */
1474 outw((mask<<8), ioaddr + INTERRUPT);
1475 outw(saved_pointer, ioaddr + POINTER);
1476 SMC_SELECT_BANK(saved_bank);
1478 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1482 if ((smc->manfid == MANFID_OSITECH) &&
1483 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1484 /* Retrigger interrupt if needed */
1485 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1486 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1488 if (smc->manfid == MANFID_MOTOROLA) {
1490 cor = readb(smc->base + MOT_UART + CISREG_COR);
1491 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1492 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1493 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1494 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1495 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1498 if ((smc->base != NULL) && /* Megahertz MFC's */
1499 (smc->manfid == MANFID_MEGAHERTZ) &&
1500 (smc->cardid == PRODID_MEGAHERTZ_EM3288)) {
1503 tmp = readb(smc->base+MEGAHERTZ_ISR);
1504 tmp = readb(smc->base+MEGAHERTZ_ISR);
1506 /* Retrigger interrupt if needed */
1507 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1508 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1511 spin_unlock(&smc->lock);
1512 return IRQ_RETVAL(handled);
1515 /*====================================================================*/
1517 static void smc_rx(struct net_device *dev)
1519 unsigned int ioaddr = dev->base_addr;
1521 int packet_length; /* Caution: not frame length, rather words
1522 to transfer from the chip. */
1524 /* Assertion: we are in Window 2. */
1526 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1527 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1532 /* Reset the read pointer, and read the status and packet length. */
1533 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1534 rx_status = inw(ioaddr + DATA_1);
1535 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1537 pr_debug("%s: Receive status %4.4x length %d.\n",
1538 dev->name, rx_status, packet_length);
1540 if (!(rx_status & RS_ERRORS)) {
1541 /* do stuff to make a new packet */
1542 struct sk_buff *skb;
1544 /* Note: packet_length adds 5 or 6 extra bytes here! */
1545 skb = dev_alloc_skb(packet_length+2);
1548 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1549 dev->stats.rx_dropped++;
1550 outw(MC_RELEASE, ioaddr + MMU_CMD);
1554 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1555 skb_reserve(skb, 2);
1556 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1557 (packet_length+1)>>1);
1558 skb->protocol = eth_type_trans(skb, dev);
1561 dev->last_rx = jiffies;
1562 dev->stats.rx_packets++;
1563 dev->stats.rx_bytes += packet_length;
1564 if (rx_status & RS_MULTICAST)
1565 dev->stats.multicast++;
1568 dev->stats.rx_errors++;
1570 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1571 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1572 dev->stats.rx_length_errors++;
1573 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1575 /* Let the MMU free the memory of this packet. */
1576 outw(MC_RELEASE, ioaddr + MMU_CMD);
1579 /*======================================================================
1581 Set the receive mode.
1583 This routine is used by both the protocol level to notify us of
1584 promiscuous/multicast mode changes, and by the open/reset code to
1585 initialize the Rx registers. We always set the multicast list and
1586 leave the receiver running.
1588 ======================================================================*/
1590 static void set_rx_mode(struct net_device *dev)
1592 unsigned int ioaddr = dev->base_addr;
1593 struct smc_private *smc = netdev_priv(dev);
1594 unsigned char multicast_table[8];
1595 unsigned long flags;
1596 u_short rx_cfg_setting;
1599 memset(multicast_table, 0, sizeof(multicast_table));
1601 if (dev->flags & IFF_PROMISC) {
1602 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1603 } else if (dev->flags & IFF_ALLMULTI)
1604 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1606 if (!netdev_mc_empty(dev)) {
1607 struct netdev_hw_addr *ha;
1609 netdev_for_each_mc_addr(ha, dev) {
1610 u_int position = ether_crc(6, ha->addr);
1611 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1614 rx_cfg_setting = RxStripCRC | RxEnable;
1617 /* Load MC table and Rx setting into the chip without interrupts. */
1618 spin_lock_irqsave(&smc->lock, flags);
1620 for (i = 0; i < 8; i++)
1621 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1623 outw(rx_cfg_setting, ioaddr + RCR);
1625 spin_unlock_irqrestore(&smc->lock, flags);
1628 /*======================================================================
1630 Senses when a card's config changes. Here, it's coax or TP.
1632 ======================================================================*/
1634 static int s9k_config(struct net_device *dev, struct ifmap *map)
1636 struct smc_private *smc = netdev_priv(dev);
1637 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1638 if (smc->cfg & CFG_MII_SELECT)
1640 else if (map->port > 2)
1642 dev->if_port = map->port;
1643 printk(KERN_INFO "%s: switched to %s port\n",
1644 dev->name, if_names[dev->if_port]);
1650 /*======================================================================
1652 Reset the chip, reloading every register that might be corrupted.
1654 ======================================================================*/
1657 Set transceiver type, perhaps to something other than what the user
1658 specified in dev->if_port.
1660 static void smc_set_xcvr(struct net_device *dev, int if_port)
1662 struct smc_private *smc = netdev_priv(dev);
1663 unsigned int ioaddr = dev->base_addr;
1666 saved_bank = inw(ioaddr + BANK_SELECT);
1669 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1670 if ((smc->manfid == MANFID_OSITECH) &&
1671 (smc->cardid != PRODID_OSITECH_SEVEN))
1672 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1673 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1675 outw(smc->cfg, ioaddr + CONFIG);
1676 if ((smc->manfid == MANFID_OSITECH) &&
1677 (smc->cardid != PRODID_OSITECH_SEVEN))
1678 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1679 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1681 SMC_SELECT_BANK(saved_bank);
1684 static void smc_reset(struct net_device *dev)
1686 unsigned int ioaddr = dev->base_addr;
1687 struct smc_private *smc = netdev_priv(dev);
1690 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1692 /* The first interaction must be a write to bring the chip out
1695 /* Reset the chip. */
1696 outw(RCR_SOFTRESET, ioaddr + RCR);
1699 /* Clear the transmit and receive configuration registers. */
1700 outw(RCR_CLEAR, ioaddr + RCR);
1701 outw(TCR_CLEAR, ioaddr + TCR);
1703 /* Set the Window 1 control, configuration and station addr registers.
1704 No point in writing the I/O base register ;-> */
1706 /* Automatically release successfully transmitted packets,
1707 Accept link errors, counter and Tx error interrupts. */
1708 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1710 smc_set_xcvr(dev, dev->if_port);
1711 if ((smc->manfid == MANFID_OSITECH) &&
1712 (smc->cardid != PRODID_OSITECH_SEVEN))
1713 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1714 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1715 ioaddr - 0x10 + OSITECH_AUI_PWR);
1717 /* Fill in the physical address. The databook is wrong about the order! */
1718 for (i = 0; i < 6; i += 2)
1719 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1720 ioaddr + ADDR0 + i);
1724 outw(MC_RESET, ioaddr + MMU_CMD);
1725 outw(0, ioaddr + INTERRUPT);
1727 /* Re-enable the chip. */
1729 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1730 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1733 if (smc->cfg & CFG_MII_SELECT) {
1737 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1739 /* Advertise 100F, 100H, 10F, 10H */
1740 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1742 /* Restart MII autonegotiation */
1743 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1744 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1747 /* Enable interrupts. */
1749 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1750 ioaddr + INTERRUPT);
1753 /*======================================================================
1755 Media selection timer routine
1757 ======================================================================*/
1759 static void media_check(u_long arg)
1761 struct net_device *dev = (struct net_device *) arg;
1762 struct smc_private *smc = netdev_priv(dev);
1763 unsigned int ioaddr = dev->base_addr;
1764 u_short i, media, saved_bank;
1766 unsigned long flags;
1768 spin_lock_irqsave(&smc->lock, flags);
1770 saved_bank = inw(ioaddr + BANK_SELECT);
1772 if (!netif_device_present(dev))
1777 /* need MC_RESET to keep the memory consistent. errata? */
1779 outw(MC_RESET, ioaddr + MMU_CMD);
1782 i = inw(ioaddr + INTERRUPT);
1784 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1786 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1788 SMC_SELECT_BANK(saved_bank);
1789 spin_unlock_irqrestore(&smc->lock, flags);
1791 /* Check for pending interrupt with watchdog flag set: with
1792 this, we can limp along even if the interrupt is blocked */
1793 if (smc->watchdog++ && ((i>>8) & i)) {
1794 if (!smc->fast_poll)
1795 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1796 local_irq_save(flags);
1797 smc_interrupt(dev->irq, dev);
1798 local_irq_restore(flags);
1799 smc->fast_poll = HZ;
1801 if (smc->fast_poll) {
1803 smc->media.expires = jiffies + HZ/100;
1804 add_timer(&smc->media);
1808 spin_lock_irqsave(&smc->lock, flags);
1810 saved_bank = inw(ioaddr + BANK_SELECT);
1812 if (smc->cfg & CFG_MII_SELECT) {
1813 if (smc->mii_if.phy_id < 0)
1817 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1818 if (!link || (link == 0xffff)) {
1819 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1820 smc->mii_if.phy_id = -1;
1825 if (link != smc->link_status) {
1826 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1827 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1828 (link) ? "found" : "lost");
1829 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1832 printk(KERN_INFO "%s: autonegotiation complete: "
1833 "%sbaseT-%cD selected\n", dev->name,
1834 ((p & 0x0180) ? "100" : "10"),
1835 (smc->duplex ? 'F' : 'H'));
1838 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1839 smc->link_status = link;
1844 /* Ignore collisions unless we've had no rx's recently */
1845 if (time_after(jiffies, dev->last_rx + HZ)) {
1846 if (smc->tx_err || (smc->media_status & EPH_16COL))
1851 if (media != smc->media_status) {
1852 if ((media & smc->media_status & 1) &&
1853 ((smc->media_status ^ media) & EPH_LINK_OK))
1854 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1855 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1856 else if ((media & smc->media_status & 2) &&
1857 ((smc->media_status ^ media) & EPH_16COL))
1858 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1859 (media & EPH_16COL ? "problem" : "ok"));
1860 if (dev->if_port == 0) {
1862 if (media & EPH_LINK_OK)
1863 printk(KERN_INFO "%s: flipped to 10baseT\n",
1866 smc_set_xcvr(dev, 2);
1868 if (media & EPH_16COL)
1869 smc_set_xcvr(dev, 1);
1871 printk(KERN_INFO "%s: flipped to 10base2\n",
1875 smc->media_status = media;
1879 smc->media.expires = jiffies + HZ;
1880 add_timer(&smc->media);
1881 SMC_SELECT_BANK(saved_bank);
1882 spin_unlock_irqrestore(&smc->lock, flags);
1885 static int smc_link_ok(struct net_device *dev)
1887 unsigned int ioaddr = dev->base_addr;
1888 struct smc_private *smc = netdev_priv(dev);
1890 if (smc->cfg & CFG_MII_SELECT) {
1891 return mii_link_ok(&smc->mii_if);
1894 return inw(ioaddr + EPH) & EPH_LINK_OK;
1898 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1901 unsigned int ioaddr = dev->base_addr;
1903 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1904 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1907 tmp = inw(ioaddr + CONFIG);
1908 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1909 ecmd->transceiver = XCVR_INTERNAL;
1910 ecmd->speed = SPEED_10;
1911 ecmd->phy_address = ioaddr + MGMT;
1914 tmp = inw(ioaddr + TCR);
1915 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1920 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1923 unsigned int ioaddr = dev->base_addr;
1925 if (ecmd->speed != SPEED_10)
1927 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1929 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1931 if (ecmd->transceiver != XCVR_INTERNAL)
1934 if (ecmd->port == PORT_AUI)
1935 smc_set_xcvr(dev, 1);
1937 smc_set_xcvr(dev, 0);
1940 tmp = inw(ioaddr + TCR);
1941 if (ecmd->duplex == DUPLEX_FULL)
1945 outw(tmp, ioaddr + TCR);
1950 static int check_if_running(struct net_device *dev)
1952 if (!netif_running(dev))
1957 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1959 strcpy(info->driver, DRV_NAME);
1960 strcpy(info->version, DRV_VERSION);
1963 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1965 struct smc_private *smc = netdev_priv(dev);
1966 unsigned int ioaddr = dev->base_addr;
1967 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1969 unsigned long flags;
1971 spin_lock_irqsave(&smc->lock, flags);
1973 if (smc->cfg & CFG_MII_SELECT)
1974 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1976 ret = smc_netdev_get_ecmd(dev, ecmd);
1977 SMC_SELECT_BANK(saved_bank);
1978 spin_unlock_irqrestore(&smc->lock, flags);
1982 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1984 struct smc_private *smc = netdev_priv(dev);
1985 unsigned int ioaddr = dev->base_addr;
1986 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1988 unsigned long flags;
1990 spin_lock_irqsave(&smc->lock, flags);
1992 if (smc->cfg & CFG_MII_SELECT)
1993 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
1995 ret = smc_netdev_set_ecmd(dev, ecmd);
1996 SMC_SELECT_BANK(saved_bank);
1997 spin_unlock_irqrestore(&smc->lock, flags);
2001 static u32 smc_get_link(struct net_device *dev)
2003 struct smc_private *smc = netdev_priv(dev);
2004 unsigned int ioaddr = dev->base_addr;
2005 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2007 unsigned long flags;
2009 spin_lock_irqsave(&smc->lock, flags);
2011 ret = smc_link_ok(dev);
2012 SMC_SELECT_BANK(saved_bank);
2013 spin_unlock_irqrestore(&smc->lock, flags);
2017 static int smc_nway_reset(struct net_device *dev)
2019 struct smc_private *smc = netdev_priv(dev);
2020 if (smc->cfg & CFG_MII_SELECT) {
2021 unsigned int ioaddr = dev->base_addr;
2022 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2026 res = mii_nway_restart(&smc->mii_if);
2027 SMC_SELECT_BANK(saved_bank);
2034 static const struct ethtool_ops ethtool_ops = {
2035 .begin = check_if_running,
2036 .get_drvinfo = smc_get_drvinfo,
2037 .get_settings = smc_get_settings,
2038 .set_settings = smc_set_settings,
2039 .get_link = smc_get_link,
2040 .nway_reset = smc_nway_reset,
2043 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2045 struct smc_private *smc = netdev_priv(dev);
2046 struct mii_ioctl_data *mii = if_mii(rq);
2049 unsigned int ioaddr = dev->base_addr;
2050 unsigned long flags;
2052 if (!netif_running(dev))
2055 spin_lock_irqsave(&smc->lock, flags);
2056 saved_bank = inw(ioaddr + BANK_SELECT);
2058 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2059 SMC_SELECT_BANK(saved_bank);
2060 spin_unlock_irqrestore(&smc->lock, flags);
2064 static struct pcmcia_device_id smc91c92_ids[] = {
2065 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2066 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2067 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2068 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2069 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2070 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2071 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2072 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2073 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2074 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2075 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2076 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2077 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2078 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2079 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2080 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2081 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2082 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2083 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2084 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2085 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2086 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2087 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2088 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2089 /* These conflict with other cards! */
2090 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2091 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2094 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2096 static struct pcmcia_driver smc91c92_cs_driver = {
2097 .owner = THIS_MODULE,
2099 .name = "smc91c92_cs",
2101 .probe = smc91c92_probe,
2102 .remove = smc91c92_detach,
2103 .id_table = smc91c92_ids,
2104 .suspend = smc91c92_suspend,
2105 .resume = smc91c92_resume,
2108 static int __init init_smc91c92_cs(void)
2110 return pcmcia_register_driver(&smc91c92_cs_driver);
2113 static void __exit exit_smc91c92_cs(void)
2115 pcmcia_unregister_driver(&smc91c92_cs_driver);
2118 module_init(init_smc91c92_cs);
2119 module_exit(exit_smc91c92_cs);