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);
449 link->conf.Attributes |= CONF_ENABLE_SPKR;
450 link->conf.Status = CCSR_AUDIO_ENA;
451 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
452 link->resource[1]->end = 8;
454 /* The Megahertz combo cards have modem-like CIS entries, so
455 we have to explicitly try a bunch of port combinations. */
456 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
459 dev->base_addr = link->resource[0]->start;
461 /* Allocate a memory window, for accessing the ISR */
462 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
463 req.Base = req.Size = 0;
465 i = pcmcia_request_window(link, &req, &link->win);
469 smc->base = ioremap(req.Base, req.Size);
470 mem.CardOffset = mem.Page = 0;
471 if (smc->manfid == MANFID_MOTOROLA)
472 mem.CardOffset = link->conf.ConfigBase;
473 i = pcmcia_map_mem_page(link, link->win, &mem);
476 (smc->manfid == MANFID_MEGAHERTZ) &&
477 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
478 mhz_3288_power(link);
483 static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
487 struct net_device *dev = priv;
491 if (pcmcia_parse_tuple(tuple, &parse))
494 buf = parse.version_1.str + parse.version_1.ofs[3];
496 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
502 static int mhz_setup(struct pcmcia_device *link)
504 struct net_device *dev = link->priv;
509 /* Read the station address from the CIS. It is stored as the last
510 (fourth) string in the Version 1 Version/ID tuple. */
511 if ((link->prod_id[3]) &&
512 (cvt_ascii_address(dev, link->prod_id[3]) == 0))
515 /* Workarounds for broken cards start here. */
516 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
517 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
520 /* Another possibility: for the EM3288, in a special tuple */
522 len = pcmcia_get_tuple(link, 0x81, &buf);
523 if (buf && len >= 13) {
525 if (cvt_ascii_address(dev, buf) == 0)
533 /*======================================================================
535 Configuration stuff for the Motorola Mariner
537 mot_config() writes directly to the Mariner configuration
538 registers because the CIS is just bogus.
540 ======================================================================*/
542 static void mot_config(struct pcmcia_device *link)
544 struct net_device *dev = link->priv;
545 struct smc_private *smc = netdev_priv(dev);
546 unsigned int ioaddr = dev->base_addr;
547 unsigned int iouart = link->resource[1]->start;
549 /* Set UART base address and force map with COR bit 1 */
550 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
551 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
552 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
554 /* Set SMC base address and force map with COR bit 1 */
555 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
556 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
557 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
559 /* Wait for things to settle down */
563 static int mot_setup(struct pcmcia_device *link)
565 struct net_device *dev = link->priv;
566 unsigned int ioaddr = dev->base_addr;
570 /* Read Ethernet address from Serial EEPROM */
572 for (i = 0; i < 3; i++) {
574 outw(MOT_EEPROM + i, ioaddr + POINTER);
576 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
578 for (loop = wait = 0; loop < 200; loop++) {
580 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
581 if (wait == 0) break;
587 addr = inw(ioaddr + GENERAL);
588 dev->dev_addr[2*i] = addr & 0xff;
589 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
595 /*====================================================================*/
597 static int smc_configcheck(struct pcmcia_device *p_dev,
598 cistpl_cftable_entry_t *cf,
599 cistpl_cftable_entry_t *dflt,
603 p_dev->resource[0]->start = cf->io.win[0].base;
604 p_dev->io_lines = cf->io.flags & CISTPL_IO_LINES_MASK;
605 return pcmcia_request_io(p_dev);
608 static int smc_config(struct pcmcia_device *link)
610 struct net_device *dev = link->priv;
613 link->resource[0]->end = 16;
614 i = pcmcia_loop_config(link, smc_configcheck, NULL);
616 dev->base_addr = link->resource[0]->start;
622 static int smc_setup(struct pcmcia_device *link)
624 struct net_device *dev = link->priv;
626 /* Check for a LAN function extension tuple */
627 if (!pcmcia_get_mac_from_cis(link, dev))
630 /* Try the third string in the Version 1 Version/ID tuple. */
631 if (link->prod_id[2]) {
632 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
638 /*====================================================================*/
640 static int osi_config(struct pcmcia_device *link)
642 struct net_device *dev = link->priv;
643 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
646 link->conf.Attributes |= CONF_ENABLE_SPKR;
647 link->conf.Status = CCSR_AUDIO_ENA;
648 link->resource[0]->end = 64;
649 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
650 link->resource[1]->end = 8;
652 /* Enable Hard Decode, LAN, Modem */
653 link->conf.ConfigIndex = 0x23;
656 for (i = j = 0; j < 4; j++) {
657 link->resource[1]->start = com[j];
658 i = pcmcia_request_io(link);
663 /* Fallback: turn off hard decode */
664 link->conf.ConfigIndex = 0x03;
665 link->resource[1]->end = 0;
666 i = pcmcia_request_io(link);
668 dev->base_addr = link->resource[0]->start + 0x10;
672 static int osi_load_firmware(struct pcmcia_device *link)
674 const struct firmware *fw;
677 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
679 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
683 /* Download the Seven of Diamonds firmware */
684 for (i = 0; i < fw->size; i++) {
685 outb(fw->data[i], link->resource[0]->start + 2);
688 release_firmware(fw);
692 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
696 struct net_device *dev = priv;
699 if (tuple->TupleDataLen < 8)
701 if (tuple->TupleData[0] != 0x04)
703 for (i = 0; i < 6; i++)
704 dev->dev_addr[i] = tuple->TupleData[i+2];
709 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
711 struct net_device *dev = link->priv;
714 /* Read the station address from tuple 0x90, subtuple 0x04 */
715 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
718 if (((manfid == MANFID_OSITECH) &&
719 (cardid == PRODID_OSITECH_SEVEN)) ||
720 ((manfid == MANFID_PSION) &&
721 (cardid == PRODID_PSION_NET100))) {
722 rc = osi_load_firmware(link);
725 } else if (manfid == MANFID_OSITECH) {
726 /* Make sure both functions are powered up */
727 set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR);
728 /* Now, turn on the interrupt for both card functions */
729 set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR);
730 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
731 inw(link->resource[0]->start + OSITECH_AUI_PWR),
732 inw(link->resource[0]->start + OSITECH_RESET_ISR));
737 static int smc91c92_suspend(struct pcmcia_device *link)
739 struct net_device *dev = link->priv;
742 netif_device_detach(dev);
747 static int smc91c92_resume(struct pcmcia_device *link)
749 struct net_device *dev = link->priv;
750 struct smc_private *smc = netdev_priv(dev);
753 if ((smc->manfid == MANFID_MEGAHERTZ) &&
754 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
755 mhz_3288_power(link);
756 if (smc->manfid == MANFID_MOTOROLA)
758 if ((smc->manfid == MANFID_OSITECH) &&
759 (smc->cardid != PRODID_OSITECH_SEVEN)) {
760 /* Power up the card and enable interrupts */
761 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
762 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
764 if (((smc->manfid == MANFID_OSITECH) &&
765 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
766 ((smc->manfid == MANFID_PSION) &&
767 (smc->cardid == PRODID_PSION_NET100))) {
768 i = osi_load_firmware(link);
770 pr_err("smc91c92_cs: Failed to load firmware\n");
776 netif_device_attach(dev);
783 /*======================================================================
785 This verifies that the chip is some SMC91cXX variant, and returns
786 the revision code if successful. Otherwise, it returns -ENODEV.
788 ======================================================================*/
790 static int check_sig(struct pcmcia_device *link)
792 struct net_device *dev = link->priv;
793 unsigned int ioaddr = dev->base_addr;
798 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
799 /* Try powering up the chip */
800 outw(0, ioaddr + CONTROL);
804 /* Try setting bus width */
805 width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO);
806 s = inb(ioaddr + CONFIG);
811 outb(s, ioaddr + CONFIG);
813 /* Check Base Address Register to make sure bus width is OK */
814 s = inw(ioaddr + BASE_ADDR);
815 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
816 ((s >> 8) != (s & 0xff))) {
818 s = inw(ioaddr + REVISION);
824 .Attributes = CONF_IO_CHANGE_WIDTH,
826 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
828 smc91c92_suspend(link);
829 pcmcia_modify_configuration(link, &mod);
830 smc91c92_resume(link);
831 return check_sig(link);
836 /*======================================================================
838 smc91c92_config() is scheduled to run after a CARD_INSERTION event
839 is received, to configure the PCMCIA socket, and to make the
840 ethernet device available to the system.
842 ======================================================================*/
844 static int smc91c92_config(struct pcmcia_device *link)
846 struct net_device *dev = link->priv;
847 struct smc_private *smc = netdev_priv(dev);
853 dev_dbg(&link->dev, "smc91c92_config\n");
855 smc->manfid = link->manf_id;
856 smc->cardid = link->card_id;
858 if ((smc->manfid == MANFID_OSITECH) &&
859 (smc->cardid != PRODID_OSITECH_SEVEN)) {
860 i = osi_config(link);
861 } else if ((smc->manfid == MANFID_MOTOROLA) ||
862 ((smc->manfid == MANFID_MEGAHERTZ) &&
863 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
864 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
865 i = mhz_mfc_config(link);
867 i = smc_config(link);
872 i = pcmcia_request_irq(link, smc_interrupt);
875 i = pcmcia_request_configuration(link, &link->conf);
879 if (smc->manfid == MANFID_MOTOROLA)
882 dev->irq = link->irq;
884 if ((if_port >= 0) && (if_port <= 2))
885 dev->if_port = if_port;
887 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
889 switch (smc->manfid) {
892 i = osi_setup(link, smc->manfid, smc->cardid); break;
894 case MANFID_NEW_MEDIA:
895 i = smc_setup(link); break;
896 case 0x128: /* For broken Megahertz cards */
897 case MANFID_MEGAHERTZ:
898 i = mhz_setup(link); break;
899 case MANFID_MOTOROLA:
900 default: /* get the hw address from EEPROM */
901 i = mot_setup(link); break;
905 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
912 rev = check_sig(link);
916 case 3: name = "92"; break;
917 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
918 case 5: name = "95"; break;
919 case 7: name = "100"; break;
920 case 8: name = "100-FD"; break;
921 case 9: name = "110"; break;
924 ioaddr = dev->base_addr;
928 mir = inw(ioaddr + MEMINFO) & 0xff;
929 if (mir == 0xff) mir++;
930 /* Get scale factor for memory size */
931 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
932 mir *= 128 * (1<<((mcr >> 9) & 7));
934 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
935 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
936 if (smc->manfid == MANFID_OSITECH)
937 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
939 smc->cfg |= CFG_MII_SELECT;
943 if (smc->cfg & CFG_MII_SELECT) {
946 for (i = 0; i < 32; i++) {
947 j = mdio_read(dev, i, 1);
948 if ((j != 0) && (j != 0xffff)) break;
950 smc->mii_if.phy_id = (i < 32) ? i : -1;
955 SET_NETDEV_DEV(dev, &link->dev);
957 if (register_netdev(dev) != 0) {
958 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
962 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
964 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
969 printk(KERN_INFO " %lu byte", mir);
971 printk(KERN_INFO " %lu kb", mir>>10);
972 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
973 "MII" : if_names[dev->if_port]);
976 if (smc->cfg & CFG_MII_SELECT) {
977 if (smc->mii_if.phy_id != -1) {
978 dev_dbg(&link->dev, " MII transceiver at index %d, status %x.\n",
979 smc->mii_if.phy_id, j);
981 printk(KERN_NOTICE " No MII transceivers found!\n");
987 unregister_netdev(dev);
989 smc91c92_release(link);
992 } /* smc91c92_config */
994 /*======================================================================
996 After a card is removed, smc91c92_release() will unregister the net
997 device, and release the PCMCIA configuration. If the device is
998 still open, this will be postponed until it is closed.
1000 ======================================================================*/
1002 static void smc91c92_release(struct pcmcia_device *link)
1004 dev_dbg(&link->dev, "smc91c92_release\n");
1006 struct net_device *dev = link->priv;
1007 struct smc_private *smc = netdev_priv(dev);
1010 pcmcia_disable_device(link);
1013 /*======================================================================
1015 MII interface support for SMC91cXX based cards
1016 ======================================================================*/
1018 #define MDIO_SHIFT_CLK 0x04
1019 #define MDIO_DATA_OUT 0x01
1020 #define MDIO_DIR_WRITE 0x08
1021 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1022 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1023 #define MDIO_DATA_READ 0x02
1025 static void mdio_sync(unsigned int addr)
1028 for (bits = 0; bits < 32; bits++) {
1029 outb(MDIO_DATA_WRITE1, addr);
1030 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1034 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1036 unsigned int addr = dev->base_addr + MGMT;
1037 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1041 for (i = 13; i >= 0; i--) {
1042 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1044 outb(dat | MDIO_SHIFT_CLK, addr);
1046 for (i = 19; i > 0; i--) {
1048 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1049 outb(MDIO_SHIFT_CLK, addr);
1051 return (retval>>1) & 0xffff;
1054 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1056 unsigned int addr = dev->base_addr + MGMT;
1057 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1061 for (i = 31; i >= 0; i--) {
1062 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1064 outb(dat | MDIO_SHIFT_CLK, addr);
1066 for (i = 1; i >= 0; i--) {
1068 outb(MDIO_SHIFT_CLK, addr);
1072 /*======================================================================
1074 The driver core code, most of which should be common with a
1075 non-PCMCIA implementation.
1077 ======================================================================*/
1080 static void smc_dump(struct net_device *dev)
1082 unsigned int ioaddr = dev->base_addr;
1084 save = inw(ioaddr + BANK_SELECT);
1085 for (w = 0; w < 4; w++) {
1087 printk(KERN_DEBUG "bank %d: ", w);
1088 for (i = 0; i < 14; i += 2)
1089 printk(" %04x", inw(ioaddr + i));
1092 outw(save, ioaddr + BANK_SELECT);
1096 static int smc_open(struct net_device *dev)
1098 struct smc_private *smc = netdev_priv(dev);
1099 struct pcmcia_device *link = smc->p_dev;
1101 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1102 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1107 /* Check that the PCMCIA card is still here. */
1108 if (!pcmcia_dev_present(link))
1110 /* Physical device present signature. */
1111 if (check_sig(link) < 0) {
1112 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1117 netif_start_queue(dev);
1118 smc->saved_skb = NULL;
1119 smc->packets_waiting = 0;
1122 init_timer(&smc->media);
1123 smc->media.function = &media_check;
1124 smc->media.data = (u_long) dev;
1125 smc->media.expires = jiffies + HZ;
1126 add_timer(&smc->media);
1131 /*====================================================================*/
1133 static int smc_close(struct net_device *dev)
1135 struct smc_private *smc = netdev_priv(dev);
1136 struct pcmcia_device *link = smc->p_dev;
1137 unsigned int ioaddr = dev->base_addr;
1139 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1140 dev->name, inw(ioaddr + BANK_SELECT));
1142 netif_stop_queue(dev);
1144 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1145 Don't bother to check for chip present. */
1146 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1147 outw(0, ioaddr + INTERRUPT);
1149 mask_bits(0xff00, ioaddr + RCR);
1150 mask_bits(0xff00, ioaddr + TCR);
1152 /* Put the chip into power-down mode. */
1154 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1157 del_timer_sync(&smc->media);
1162 /*======================================================================
1164 Transfer a packet to the hardware and trigger the packet send.
1165 This may be called at either from either the Tx queue code
1166 or the interrupt handler.
1168 ======================================================================*/
1170 static void smc_hardware_send_packet(struct net_device * dev)
1172 struct smc_private *smc = netdev_priv(dev);
1173 struct sk_buff *skb = smc->saved_skb;
1174 unsigned int ioaddr = dev->base_addr;
1178 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1182 /* There should be a packet slot waiting. */
1183 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1184 if (packet_no & 0x80) {
1185 /* If not, there is a hardware problem! Likely an ejected card. */
1186 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1187 " failed, status %#2.2x.\n", dev->name, packet_no);
1188 dev_kfree_skb_irq(skb);
1189 smc->saved_skb = NULL;
1190 netif_start_queue(dev);
1194 dev->stats.tx_bytes += skb->len;
1195 /* The card should use the just-allocated buffer. */
1196 outw(packet_no, ioaddr + PNR_ARR);
1197 /* point to the beginning of the packet */
1198 outw(PTR_AUTOINC , ioaddr + POINTER);
1200 /* Send the packet length (+6 for status, length and ctl byte)
1201 and the status word (set to zeros). */
1203 u_char *buf = skb->data;
1204 u_int length = skb->len; /* The chip will pad to ethernet min. */
1206 pr_debug("%s: Trying to xmit packet of length %d.\n",
1209 /* send the packet length: +6 for status word, length, and ctl */
1210 outw(0, ioaddr + DATA_1);
1211 outw(length + 6, ioaddr + DATA_1);
1212 outsw(ioaddr + DATA_1, buf, length >> 1);
1214 /* The odd last byte, if there is one, goes in the control word. */
1215 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1218 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1219 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1220 (inw(ioaddr + INTERRUPT) & 0xff00),
1221 ioaddr + INTERRUPT);
1223 /* The chip does the rest of the work. */
1224 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1226 smc->saved_skb = NULL;
1227 dev_kfree_skb_irq(skb);
1228 dev->trans_start = jiffies;
1229 netif_start_queue(dev);
1232 /*====================================================================*/
1234 static void smc_tx_timeout(struct net_device *dev)
1236 struct smc_private *smc = netdev_priv(dev);
1237 unsigned int ioaddr = dev->base_addr;
1239 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1240 "Tx_status %2.2x status %4.4x.\n",
1241 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1242 dev->stats.tx_errors++;
1244 dev->trans_start = jiffies; /* prevent tx timeout */
1245 smc->saved_skb = NULL;
1246 netif_wake_queue(dev);
1249 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1250 struct net_device *dev)
1252 struct smc_private *smc = netdev_priv(dev);
1253 unsigned int ioaddr = dev->base_addr;
1256 unsigned long flags;
1258 netif_stop_queue(dev);
1260 pr_debug("%s: smc_start_xmit(length = %d) called,"
1261 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1263 if (smc->saved_skb) {
1264 /* THIS SHOULD NEVER HAPPEN. */
1265 dev->stats.tx_aborted_errors++;
1266 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1268 return NETDEV_TX_BUSY;
1270 smc->saved_skb = skb;
1272 num_pages = skb->len >> 8;
1274 if (num_pages > 7) {
1275 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1276 dev_kfree_skb (skb);
1277 smc->saved_skb = NULL;
1278 dev->stats.tx_dropped++;
1279 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1281 /* A packet is now waiting. */
1282 smc->packets_waiting++;
1284 spin_lock_irqsave(&smc->lock, flags);
1285 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1287 /* need MC_RESET to keep the memory consistent. errata? */
1289 outw(MC_RESET, ioaddr + MMU_CMD);
1293 /* Allocate the memory; send the packet now if we win. */
1294 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1295 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1296 ir = inw(ioaddr+INTERRUPT);
1297 if (ir & IM_ALLOC_INT) {
1298 /* Acknowledge the interrupt, send the packet. */
1299 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1300 smc_hardware_send_packet(dev); /* Send the packet now.. */
1301 spin_unlock_irqrestore(&smc->lock, flags);
1302 return NETDEV_TX_OK;
1306 /* Otherwise defer until the Tx-space-allocated interrupt. */
1307 pr_debug("%s: memory allocation deferred.\n", dev->name);
1308 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1309 spin_unlock_irqrestore(&smc->lock, flags);
1311 return NETDEV_TX_OK;
1314 /*======================================================================
1316 Handle a Tx anomolous event. Entered while in Window 2.
1318 ======================================================================*/
1320 static void smc_tx_err(struct net_device * dev)
1322 struct smc_private *smc = netdev_priv(dev);
1323 unsigned int ioaddr = dev->base_addr;
1324 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1325 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1328 /* select this as the packet to read from */
1329 outw(packet_no, ioaddr + PNR_ARR);
1331 /* read the first word from this packet */
1332 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1334 tx_status = inw(ioaddr + DATA_1);
1336 dev->stats.tx_errors++;
1337 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1338 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1339 if (tx_status & TS_16COL) {
1340 dev->stats.tx_aborted_errors++;
1344 if (tx_status & TS_SUCCESS) {
1345 printk(KERN_NOTICE "%s: Successful packet caused error "
1346 "interrupt?\n", dev->name);
1348 /* re-enable transmit */
1350 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1353 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1355 /* one less packet waiting for me */
1356 smc->packets_waiting--;
1358 outw(saved_packet, ioaddr + PNR_ARR);
1361 /*====================================================================*/
1363 static void smc_eph_irq(struct net_device *dev)
1365 struct smc_private *smc = netdev_priv(dev);
1366 unsigned int ioaddr = dev->base_addr;
1367 u_short card_stats, ephs;
1370 ephs = inw(ioaddr + EPH);
1371 pr_debug("%s: Ethernet protocol handler interrupt, status"
1372 " %4.4x.\n", dev->name, ephs);
1373 /* Could be a counter roll-over warning: update stats. */
1374 card_stats = inw(ioaddr + COUNTER);
1375 /* single collisions */
1376 dev->stats.collisions += card_stats & 0xF;
1378 /* multiple collisions */
1379 dev->stats.collisions += card_stats & 0xF;
1380 #if 0 /* These are for when linux supports these statistics */
1381 card_stats >>= 4; /* deferred */
1382 card_stats >>= 4; /* excess deferred */
1384 /* If we had a transmit error we must re-enable the transmitter. */
1385 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1387 /* Clear a link error interrupt. */
1389 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1390 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1395 /*====================================================================*/
1397 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1399 struct net_device *dev = dev_id;
1400 struct smc_private *smc = netdev_priv(dev);
1401 unsigned int ioaddr;
1402 u_short saved_bank, saved_pointer, mask, status;
1403 unsigned int handled = 1;
1404 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1406 if (!netif_device_present(dev))
1409 ioaddr = dev->base_addr;
1411 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1414 spin_lock(&smc->lock);
1416 saved_bank = inw(ioaddr + BANK_SELECT);
1417 if ((saved_bank & 0xff00) != 0x3300) {
1418 /* The device does not exist -- the card could be off-line, or
1419 maybe it has been ejected. */
1420 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1421 "/ejected device.\n", dev->name, irq);
1427 saved_pointer = inw(ioaddr + POINTER);
1428 mask = inw(ioaddr + INTERRUPT) >> 8;
1429 /* clear all interrupts */
1430 outw(0, ioaddr + INTERRUPT);
1432 do { /* read the status flag, and mask it */
1433 status = inw(ioaddr + INTERRUPT) & 0xff;
1434 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1436 if ((status & mask) == 0) {
1437 if (bogus_cnt == INTR_WORK)
1441 if (status & IM_RCV_INT) {
1442 /* Got a packet(s). */
1445 if (status & IM_TX_INT) {
1447 outw(IM_TX_INT, ioaddr + INTERRUPT);
1450 if (status & IM_TX_EMPTY_INT) {
1451 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1452 mask &= ~IM_TX_EMPTY_INT;
1453 dev->stats.tx_packets += smc->packets_waiting;
1454 smc->packets_waiting = 0;
1456 if (status & IM_ALLOC_INT) {
1457 /* Clear this interrupt so it doesn't happen again */
1458 mask &= ~IM_ALLOC_INT;
1460 smc_hardware_send_packet(dev);
1462 /* enable xmit interrupts based on this */
1463 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1465 /* and let the card send more packets to me */
1466 netif_wake_queue(dev);
1468 if (status & IM_RX_OVRN_INT) {
1469 dev->stats.rx_errors++;
1470 dev->stats.rx_fifo_errors++;
1472 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1473 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1475 if (status & IM_EPH_INT)
1477 } while (--bogus_cnt);
1479 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1480 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1482 /* restore state register */
1483 outw((mask<<8), ioaddr + INTERRUPT);
1484 outw(saved_pointer, ioaddr + POINTER);
1485 SMC_SELECT_BANK(saved_bank);
1487 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1491 if ((smc->manfid == MANFID_OSITECH) &&
1492 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1493 /* Retrigger interrupt if needed */
1494 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1495 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1497 if (smc->manfid == MANFID_MOTOROLA) {
1499 cor = readb(smc->base + MOT_UART + CISREG_COR);
1500 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1501 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1502 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1503 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1504 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1507 if ((smc->base != NULL) && /* Megahertz MFC's */
1508 (smc->manfid == MANFID_MEGAHERTZ) &&
1509 (smc->cardid == PRODID_MEGAHERTZ_EM3288)) {
1512 tmp = readb(smc->base+MEGAHERTZ_ISR);
1513 tmp = readb(smc->base+MEGAHERTZ_ISR);
1515 /* Retrigger interrupt if needed */
1516 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1517 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1520 spin_unlock(&smc->lock);
1521 return IRQ_RETVAL(handled);
1524 /*====================================================================*/
1526 static void smc_rx(struct net_device *dev)
1528 unsigned int ioaddr = dev->base_addr;
1530 int packet_length; /* Caution: not frame length, rather words
1531 to transfer from the chip. */
1533 /* Assertion: we are in Window 2. */
1535 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1536 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1541 /* Reset the read pointer, and read the status and packet length. */
1542 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1543 rx_status = inw(ioaddr + DATA_1);
1544 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1546 pr_debug("%s: Receive status %4.4x length %d.\n",
1547 dev->name, rx_status, packet_length);
1549 if (!(rx_status & RS_ERRORS)) {
1550 /* do stuff to make a new packet */
1551 struct sk_buff *skb;
1553 /* Note: packet_length adds 5 or 6 extra bytes here! */
1554 skb = dev_alloc_skb(packet_length+2);
1557 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1558 dev->stats.rx_dropped++;
1559 outw(MC_RELEASE, ioaddr + MMU_CMD);
1563 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1564 skb_reserve(skb, 2);
1565 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1566 (packet_length+1)>>1);
1567 skb->protocol = eth_type_trans(skb, dev);
1570 dev->last_rx = jiffies;
1571 dev->stats.rx_packets++;
1572 dev->stats.rx_bytes += packet_length;
1573 if (rx_status & RS_MULTICAST)
1574 dev->stats.multicast++;
1577 dev->stats.rx_errors++;
1579 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1580 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1581 dev->stats.rx_length_errors++;
1582 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1584 /* Let the MMU free the memory of this packet. */
1585 outw(MC_RELEASE, ioaddr + MMU_CMD);
1588 /*======================================================================
1590 Set the receive mode.
1592 This routine is used by both the protocol level to notify us of
1593 promiscuous/multicast mode changes, and by the open/reset code to
1594 initialize the Rx registers. We always set the multicast list and
1595 leave the receiver running.
1597 ======================================================================*/
1599 static void set_rx_mode(struct net_device *dev)
1601 unsigned int ioaddr = dev->base_addr;
1602 struct smc_private *smc = netdev_priv(dev);
1603 unsigned char multicast_table[8];
1604 unsigned long flags;
1605 u_short rx_cfg_setting;
1608 memset(multicast_table, 0, sizeof(multicast_table));
1610 if (dev->flags & IFF_PROMISC) {
1611 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1612 } else if (dev->flags & IFF_ALLMULTI)
1613 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1615 if (!netdev_mc_empty(dev)) {
1616 struct netdev_hw_addr *ha;
1618 netdev_for_each_mc_addr(ha, dev) {
1619 u_int position = ether_crc(6, ha->addr);
1620 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1623 rx_cfg_setting = RxStripCRC | RxEnable;
1626 /* Load MC table and Rx setting into the chip without interrupts. */
1627 spin_lock_irqsave(&smc->lock, flags);
1629 for (i = 0; i < 8; i++)
1630 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1632 outw(rx_cfg_setting, ioaddr + RCR);
1634 spin_unlock_irqrestore(&smc->lock, flags);
1637 /*======================================================================
1639 Senses when a card's config changes. Here, it's coax or TP.
1641 ======================================================================*/
1643 static int s9k_config(struct net_device *dev, struct ifmap *map)
1645 struct smc_private *smc = netdev_priv(dev);
1646 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1647 if (smc->cfg & CFG_MII_SELECT)
1649 else if (map->port > 2)
1651 dev->if_port = map->port;
1652 printk(KERN_INFO "%s: switched to %s port\n",
1653 dev->name, if_names[dev->if_port]);
1659 /*======================================================================
1661 Reset the chip, reloading every register that might be corrupted.
1663 ======================================================================*/
1666 Set transceiver type, perhaps to something other than what the user
1667 specified in dev->if_port.
1669 static void smc_set_xcvr(struct net_device *dev, int if_port)
1671 struct smc_private *smc = netdev_priv(dev);
1672 unsigned int ioaddr = dev->base_addr;
1675 saved_bank = inw(ioaddr + BANK_SELECT);
1678 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1679 if ((smc->manfid == MANFID_OSITECH) &&
1680 (smc->cardid != PRODID_OSITECH_SEVEN))
1681 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1682 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1684 outw(smc->cfg, ioaddr + CONFIG);
1685 if ((smc->manfid == MANFID_OSITECH) &&
1686 (smc->cardid != PRODID_OSITECH_SEVEN))
1687 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1688 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1690 SMC_SELECT_BANK(saved_bank);
1693 static void smc_reset(struct net_device *dev)
1695 unsigned int ioaddr = dev->base_addr;
1696 struct smc_private *smc = netdev_priv(dev);
1699 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1701 /* The first interaction must be a write to bring the chip out
1704 /* Reset the chip. */
1705 outw(RCR_SOFTRESET, ioaddr + RCR);
1708 /* Clear the transmit and receive configuration registers. */
1709 outw(RCR_CLEAR, ioaddr + RCR);
1710 outw(TCR_CLEAR, ioaddr + TCR);
1712 /* Set the Window 1 control, configuration and station addr registers.
1713 No point in writing the I/O base register ;-> */
1715 /* Automatically release successfully transmitted packets,
1716 Accept link errors, counter and Tx error interrupts. */
1717 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1719 smc_set_xcvr(dev, dev->if_port);
1720 if ((smc->manfid == MANFID_OSITECH) &&
1721 (smc->cardid != PRODID_OSITECH_SEVEN))
1722 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1723 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1724 ioaddr - 0x10 + OSITECH_AUI_PWR);
1726 /* Fill in the physical address. The databook is wrong about the order! */
1727 for (i = 0; i < 6; i += 2)
1728 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1729 ioaddr + ADDR0 + i);
1733 outw(MC_RESET, ioaddr + MMU_CMD);
1734 outw(0, ioaddr + INTERRUPT);
1736 /* Re-enable the chip. */
1738 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1739 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1742 if (smc->cfg & CFG_MII_SELECT) {
1746 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1748 /* Advertise 100F, 100H, 10F, 10H */
1749 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1751 /* Restart MII autonegotiation */
1752 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1753 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1756 /* Enable interrupts. */
1758 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1759 ioaddr + INTERRUPT);
1762 /*======================================================================
1764 Media selection timer routine
1766 ======================================================================*/
1768 static void media_check(u_long arg)
1770 struct net_device *dev = (struct net_device *) arg;
1771 struct smc_private *smc = netdev_priv(dev);
1772 unsigned int ioaddr = dev->base_addr;
1773 u_short i, media, saved_bank;
1775 unsigned long flags;
1777 spin_lock_irqsave(&smc->lock, flags);
1779 saved_bank = inw(ioaddr + BANK_SELECT);
1781 if (!netif_device_present(dev))
1786 /* need MC_RESET to keep the memory consistent. errata? */
1788 outw(MC_RESET, ioaddr + MMU_CMD);
1791 i = inw(ioaddr + INTERRUPT);
1793 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1795 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1797 SMC_SELECT_BANK(saved_bank);
1798 spin_unlock_irqrestore(&smc->lock, flags);
1800 /* Check for pending interrupt with watchdog flag set: with
1801 this, we can limp along even if the interrupt is blocked */
1802 if (smc->watchdog++ && ((i>>8) & i)) {
1803 if (!smc->fast_poll)
1804 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1805 local_irq_save(flags);
1806 smc_interrupt(dev->irq, dev);
1807 local_irq_restore(flags);
1808 smc->fast_poll = HZ;
1810 if (smc->fast_poll) {
1812 smc->media.expires = jiffies + HZ/100;
1813 add_timer(&smc->media);
1817 spin_lock_irqsave(&smc->lock, flags);
1819 saved_bank = inw(ioaddr + BANK_SELECT);
1821 if (smc->cfg & CFG_MII_SELECT) {
1822 if (smc->mii_if.phy_id < 0)
1826 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1827 if (!link || (link == 0xffff)) {
1828 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1829 smc->mii_if.phy_id = -1;
1834 if (link != smc->link_status) {
1835 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1836 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1837 (link) ? "found" : "lost");
1838 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1841 printk(KERN_INFO "%s: autonegotiation complete: "
1842 "%sbaseT-%cD selected\n", dev->name,
1843 ((p & 0x0180) ? "100" : "10"),
1844 (smc->duplex ? 'F' : 'H'));
1847 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1848 smc->link_status = link;
1853 /* Ignore collisions unless we've had no rx's recently */
1854 if (time_after(jiffies, dev->last_rx + HZ)) {
1855 if (smc->tx_err || (smc->media_status & EPH_16COL))
1860 if (media != smc->media_status) {
1861 if ((media & smc->media_status & 1) &&
1862 ((smc->media_status ^ media) & EPH_LINK_OK))
1863 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1864 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1865 else if ((media & smc->media_status & 2) &&
1866 ((smc->media_status ^ media) & EPH_16COL))
1867 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1868 (media & EPH_16COL ? "problem" : "ok"));
1869 if (dev->if_port == 0) {
1871 if (media & EPH_LINK_OK)
1872 printk(KERN_INFO "%s: flipped to 10baseT\n",
1875 smc_set_xcvr(dev, 2);
1877 if (media & EPH_16COL)
1878 smc_set_xcvr(dev, 1);
1880 printk(KERN_INFO "%s: flipped to 10base2\n",
1884 smc->media_status = media;
1888 smc->media.expires = jiffies + HZ;
1889 add_timer(&smc->media);
1890 SMC_SELECT_BANK(saved_bank);
1891 spin_unlock_irqrestore(&smc->lock, flags);
1894 static int smc_link_ok(struct net_device *dev)
1896 unsigned int ioaddr = dev->base_addr;
1897 struct smc_private *smc = netdev_priv(dev);
1899 if (smc->cfg & CFG_MII_SELECT) {
1900 return mii_link_ok(&smc->mii_if);
1903 return inw(ioaddr + EPH) & EPH_LINK_OK;
1907 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1910 unsigned int ioaddr = dev->base_addr;
1912 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1913 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1916 tmp = inw(ioaddr + CONFIG);
1917 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1918 ecmd->transceiver = XCVR_INTERNAL;
1919 ecmd->speed = SPEED_10;
1920 ecmd->phy_address = ioaddr + MGMT;
1923 tmp = inw(ioaddr + TCR);
1924 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1929 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1932 unsigned int ioaddr = dev->base_addr;
1934 if (ecmd->speed != SPEED_10)
1936 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1938 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1940 if (ecmd->transceiver != XCVR_INTERNAL)
1943 if (ecmd->port == PORT_AUI)
1944 smc_set_xcvr(dev, 1);
1946 smc_set_xcvr(dev, 0);
1949 tmp = inw(ioaddr + TCR);
1950 if (ecmd->duplex == DUPLEX_FULL)
1954 outw(tmp, ioaddr + TCR);
1959 static int check_if_running(struct net_device *dev)
1961 if (!netif_running(dev))
1966 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1968 strcpy(info->driver, DRV_NAME);
1969 strcpy(info->version, DRV_VERSION);
1972 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1974 struct smc_private *smc = netdev_priv(dev);
1975 unsigned int ioaddr = dev->base_addr;
1976 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1978 unsigned long flags;
1980 spin_lock_irqsave(&smc->lock, flags);
1982 if (smc->cfg & CFG_MII_SELECT)
1983 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1985 ret = smc_netdev_get_ecmd(dev, ecmd);
1986 SMC_SELECT_BANK(saved_bank);
1987 spin_unlock_irqrestore(&smc->lock, flags);
1991 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1993 struct smc_private *smc = netdev_priv(dev);
1994 unsigned int ioaddr = dev->base_addr;
1995 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1997 unsigned long flags;
1999 spin_lock_irqsave(&smc->lock, flags);
2001 if (smc->cfg & CFG_MII_SELECT)
2002 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2004 ret = smc_netdev_set_ecmd(dev, ecmd);
2005 SMC_SELECT_BANK(saved_bank);
2006 spin_unlock_irqrestore(&smc->lock, flags);
2010 static u32 smc_get_link(struct net_device *dev)
2012 struct smc_private *smc = netdev_priv(dev);
2013 unsigned int ioaddr = dev->base_addr;
2014 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2016 unsigned long flags;
2018 spin_lock_irqsave(&smc->lock, flags);
2020 ret = smc_link_ok(dev);
2021 SMC_SELECT_BANK(saved_bank);
2022 spin_unlock_irqrestore(&smc->lock, flags);
2026 static int smc_nway_reset(struct net_device *dev)
2028 struct smc_private *smc = netdev_priv(dev);
2029 if (smc->cfg & CFG_MII_SELECT) {
2030 unsigned int ioaddr = dev->base_addr;
2031 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2035 res = mii_nway_restart(&smc->mii_if);
2036 SMC_SELECT_BANK(saved_bank);
2043 static const struct ethtool_ops ethtool_ops = {
2044 .begin = check_if_running,
2045 .get_drvinfo = smc_get_drvinfo,
2046 .get_settings = smc_get_settings,
2047 .set_settings = smc_set_settings,
2048 .get_link = smc_get_link,
2049 .nway_reset = smc_nway_reset,
2052 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2054 struct smc_private *smc = netdev_priv(dev);
2055 struct mii_ioctl_data *mii = if_mii(rq);
2058 unsigned int ioaddr = dev->base_addr;
2059 unsigned long flags;
2061 if (!netif_running(dev))
2064 spin_lock_irqsave(&smc->lock, flags);
2065 saved_bank = inw(ioaddr + BANK_SELECT);
2067 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2068 SMC_SELECT_BANK(saved_bank);
2069 spin_unlock_irqrestore(&smc->lock, flags);
2073 static struct pcmcia_device_id smc91c92_ids[] = {
2074 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2075 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2076 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2077 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2078 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2079 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2080 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2081 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2082 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2083 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2084 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2085 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2086 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2087 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2088 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2089 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2090 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2091 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2092 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2093 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2094 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2095 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2096 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2097 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2098 /* These conflict with other cards! */
2099 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2100 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2103 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2105 static struct pcmcia_driver smc91c92_cs_driver = {
2106 .owner = THIS_MODULE,
2108 .name = "smc91c92_cs",
2110 .probe = smc91c92_probe,
2111 .remove = smc91c92_detach,
2112 .id_table = smc91c92_ids,
2113 .suspend = smc91c92_suspend,
2114 .resume = smc91c92_resume,
2117 static int __init init_smc91c92_cs(void)
2119 return pcmcia_register_driver(&smc91c92_cs_driver);
2122 static void __exit exit_smc91c92_cs(void)
2124 pcmcia_unregister_driver(&smc91c92_cs_driver);
2127 module_init(init_smc91c92_cs);
2128 module_exit(exit_smc91c92_cs);