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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
30 #include <linux/module.h>
31 #include <linux/kernel.h>
32 #include <linux/init.h>
33 #include <linux/slab.h>
34 #include <linux/string.h>
35 #include <linux/timer.h>
36 #include <linux/interrupt.h>
37 #include <linux/delay.h>
38 #include <linux/crc32.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/skbuff.h>
42 #include <linux/if_arp.h>
43 #include <linux/ioport.h>
44 #include <linux/ethtool.h>
45 #include <linux/mii.h>
46 #include <linux/jiffies.h>
47 #include <linux/firmware.h>
49 #include <pcmcia/cs.h>
50 #include <pcmcia/cistpl.h>
51 #include <pcmcia/cisreg.h>
52 #include <pcmcia/ciscode.h>
53 #include <pcmcia/ds.h>
54 #include <pcmcia/ss.h>
57 #include <asm/system.h>
58 #include <asm/uaccess.h>
60 /*====================================================================*/
62 static const char *if_names[] = { "auto", "10baseT", "10base2"};
65 #define FIRMWARE_NAME "ositech/Xilinx7OD.bin"
67 /* Module parameters */
69 MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
70 MODULE_LICENSE("GPL");
71 MODULE_FIRMWARE(FIRMWARE_NAME);
73 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
76 Transceiver/media type.
78 1 = 10baseT (and autoselect if #define AUTOSELECT),
81 INT_MODULE_PARM(if_port, 0);
84 #define DRV_NAME "smc91c92_cs"
85 #define DRV_VERSION "1.123"
87 /*====================================================================*/
89 /* Operational parameter that usually are not changed. */
91 /* Time in jiffies before concluding Tx hung */
92 #define TX_TIMEOUT ((400*HZ)/1000)
94 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
97 /* Times to check the check the chip before concluding that it doesn't
98 currently have room for another Tx packet. */
99 #define MEMORY_WAIT_TIME 8
102 struct pcmcia_device *p_dev;
107 struct sk_buff *saved_skb;
111 struct timer_list media;
112 int watchdog, tx_err;
113 u_short media_status;
116 struct mii_if_info mii_if;
121 /* Special definitions for Megahertz multifunction cards */
122 #define MEGAHERTZ_ISR 0x0380
124 /* Special function registers for Motorola Mariner */
125 #define MOT_LAN 0x0000
126 #define MOT_UART 0x0020
127 #define MOT_EEPROM 0x20
130 (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
132 /* Special function registers for Ositech cards */
133 #define OSITECH_AUI_CTL 0x0c
134 #define OSITECH_PWRDOWN 0x0d
135 #define OSITECH_RESET 0x0e
136 #define OSITECH_ISR 0x0f
137 #define OSITECH_AUI_PWR 0x0c
138 #define OSITECH_RESET_ISR 0x0e
140 #define OSI_AUI_PWR 0x40
141 #define OSI_LAN_PWRDOWN 0x02
142 #define OSI_MODEM_PWRDOWN 0x01
143 #define OSI_LAN_RESET 0x02
144 #define OSI_MODEM_RESET 0x01
146 /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
147 #define BANK_SELECT 14 /* Window select register. */
148 #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
150 /* Bank 0 registers. */
151 #define TCR 0 /* transmit control register */
152 #define TCR_CLEAR 0 /* do NOTHING */
153 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
154 #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
155 #define TCR_MONCSN 0x0400 /* Monitor Carrier. */
156 #define TCR_FDUPLX 0x0800 /* Full duplex mode. */
157 #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
159 #define EPH 2 /* Ethernet Protocol Handler report. */
160 #define EPH_TX_SUC 0x0001
161 #define EPH_SNGLCOL 0x0002
162 #define EPH_MULCOL 0x0004
163 #define EPH_LTX_MULT 0x0008
164 #define EPH_16COL 0x0010
165 #define EPH_SQET 0x0020
166 #define EPH_LTX_BRD 0x0040
167 #define EPH_TX_DEFR 0x0080
168 #define EPH_LAT_COL 0x0200
169 #define EPH_LOST_CAR 0x0400
170 #define EPH_EXC_DEF 0x0800
171 #define EPH_CTR_ROL 0x1000
172 #define EPH_RX_OVRN 0x2000
173 #define EPH_LINK_OK 0x4000
174 #define EPH_TX_UNRN 0x8000
175 #define MEMINFO 8 /* Memory Information Register */
176 #define MEMCFG 10 /* Memory Configuration Register */
178 /* Bank 1 registers. */
180 #define CFG_MII_SELECT 0x8000 /* 91C100 only */
181 #define CFG_NO_WAIT 0x1000
182 #define CFG_FULL_STEP 0x0400
183 #define CFG_SET_SQLCH 0x0200
184 #define CFG_AUI_SELECT 0x0100
185 #define CFG_16BIT 0x0080
186 #define CFG_DIS_LINK 0x0040
187 #define CFG_STATIC 0x0030
188 #define CFG_IRQ_SEL_1 0x0004
189 #define CFG_IRQ_SEL_0 0x0002
194 #define CTL_STORE 0x0001
195 #define CTL_RELOAD 0x0002
196 #define CTL_EE_SELECT 0x0004
197 #define CTL_TE_ENABLE 0x0020
198 #define CTL_CR_ENABLE 0x0040
199 #define CTL_LE_ENABLE 0x0080
200 #define CTL_AUTO_RELEASE 0x0800
201 #define CTL_POWERDOWN 0x2000
203 /* Bank 2 registers. */
205 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
206 #define MC_RESET 0x40
207 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
208 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
209 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
212 #define FP_RXEMPTY 0x8000
214 #define PTR_AUTO_INC 0x0040
215 #define PTR_READ 0x2000
216 #define PTR_AUTOINC 0x4000
217 #define PTR_RCV 0x8000
220 #define IM_RCV_INT 0x1
221 #define IM_TX_INT 0x2
222 #define IM_TX_EMPTY_INT 0x4
223 #define IM_ALLOC_INT 0x8
224 #define IM_RX_OVRN_INT 0x10
225 #define IM_EPH_INT 0x20
228 enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
229 RxEnable = 0x0100, RxStripCRC = 0x0200};
230 #define RCR_SOFTRESET 0x8000 /* resets the chip */
231 #define RCR_STRIP_CRC 0x200 /* strips CRC */
232 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
233 #define RCR_ALMUL 0x4 /* receive all multicast packets */
234 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
236 /* the normal settings for the RCR register : */
237 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
238 #define RCR_CLEAR 0x0 /* set it to a base state */
241 /* BANK 3 -- not the same values as in smc9194! */
247 #define REVISION 0x0a
249 /* Transmit status bits. */
250 #define TS_SUCCESS 0x0001
251 #define TS_16COL 0x0010
252 #define TS_LATCOL 0x0200
253 #define TS_LOSTCAR 0x0400
255 /* Receive status bits. */
256 #define RS_ALGNERR 0x8000
257 #define RS_BADCRC 0x2000
258 #define RS_ODDFRAME 0x1000
259 #define RS_TOOLONG 0x0800
260 #define RS_TOOSHORT 0x0400
261 #define RS_MULTICAST 0x0001
262 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
264 #define set_bits(v, p) outw(inw(p)|(v), (p))
265 #define mask_bits(v, p) outw(inw(p)&(v), (p))
267 /*====================================================================*/
269 static void smc91c92_detach(struct pcmcia_device *p_dev);
270 static int smc91c92_config(struct pcmcia_device *link);
271 static void smc91c92_release(struct pcmcia_device *link);
273 static int smc_open(struct net_device *dev);
274 static int smc_close(struct net_device *dev);
275 static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
276 static void smc_tx_timeout(struct net_device *dev);
277 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
278 struct net_device *dev);
279 static irqreturn_t smc_interrupt(int irq, void *dev_id);
280 static void smc_rx(struct net_device *dev);
281 static void set_rx_mode(struct net_device *dev);
282 static int s9k_config(struct net_device *dev, struct ifmap *map);
283 static void smc_set_xcvr(struct net_device *dev, int if_port);
284 static void smc_reset(struct net_device *dev);
285 static void media_check(u_long arg);
286 static void mdio_sync(unsigned int addr);
287 static int mdio_read(struct net_device *dev, int phy_id, int loc);
288 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
289 static int smc_link_ok(struct net_device *dev);
290 static const struct ethtool_ops ethtool_ops;
292 static const struct net_device_ops smc_netdev_ops = {
293 .ndo_open = smc_open,
294 .ndo_stop = smc_close,
295 .ndo_start_xmit = smc_start_xmit,
296 .ndo_tx_timeout = smc_tx_timeout,
297 .ndo_set_config = s9k_config,
298 .ndo_set_multicast_list = set_rx_mode,
299 .ndo_do_ioctl = smc_ioctl,
300 .ndo_change_mtu = eth_change_mtu,
301 .ndo_set_mac_address = eth_mac_addr,
302 .ndo_validate_addr = eth_validate_addr,
305 /*======================================================================
307 smc91c92_attach() creates an "instance" of the driver, allocating
308 local data structures for one device. The device is registered
311 ======================================================================*/
313 static int smc91c92_probe(struct pcmcia_device *link)
315 struct smc_private *smc;
316 struct net_device *dev;
318 dev_dbg(&link->dev, "smc91c92_attach()\n");
320 /* Create new ethernet device */
321 dev = alloc_etherdev(sizeof(struct smc_private));
324 smc = netdev_priv(dev);
328 spin_lock_init(&smc->lock);
329 link->resource[0]->end = 16;
330 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
331 link->conf.Attributes = CONF_ENABLE_IRQ;
332 link->conf.IntType = INT_MEMORY_AND_IO;
334 /* The SMC91c92-specific entries in the device structure. */
335 dev->netdev_ops = &smc_netdev_ops;
336 SET_ETHTOOL_OPS(dev, ðtool_ops);
337 dev->watchdog_timeo = TX_TIMEOUT;
339 smc->mii_if.dev = dev;
340 smc->mii_if.mdio_read = mdio_read;
341 smc->mii_if.mdio_write = mdio_write;
342 smc->mii_if.phy_id_mask = 0x1f;
343 smc->mii_if.reg_num_mask = 0x1f;
345 return smc91c92_config(link);
346 } /* smc91c92_attach */
348 /*======================================================================
350 This deletes a driver "instance". The device is de-registered
351 with Card Services. If it has been released, all local data
352 structures are freed. Otherwise, the structures will be freed
353 when the device is released.
355 ======================================================================*/
357 static void smc91c92_detach(struct pcmcia_device *link)
359 struct net_device *dev = link->priv;
361 dev_dbg(&link->dev, "smc91c92_detach\n");
363 unregister_netdev(dev);
365 smc91c92_release(link);
368 } /* smc91c92_detach */
370 /*====================================================================*/
372 static int cvt_ascii_address(struct net_device *dev, char *s)
378 for (i = 0; i < 6; i++) {
380 for (j = 0; j < 2; j++) {
383 da += ((c >= '0') && (c <= '9')) ?
384 (c - '0') : ((c & 0x0f) + 9);
386 dev->dev_addr[i] = da;
391 /*====================================================================
393 Configuration stuff for Megahertz cards
395 mhz_3288_power() is used to power up a 3288's ethernet chip.
396 mhz_mfc_config() handles socket setup for multifunction (1144
397 and 3288) cards. mhz_setup() gets a card's hardware ethernet
400 ======================================================================*/
402 static int mhz_3288_power(struct pcmcia_device *link)
404 struct net_device *dev = link->priv;
405 struct smc_private *smc = netdev_priv(dev);
408 /* Read the ISR twice... */
409 readb(smc->base+MEGAHERTZ_ISR);
411 readb(smc->base+MEGAHERTZ_ISR);
416 /* Now read and write the COR... */
417 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
419 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
424 static int mhz_mfc_config_check(struct pcmcia_device *p_dev,
425 cistpl_cftable_entry_t *cf,
426 cistpl_cftable_entry_t *dflt,
431 p_dev->resource[1]->start = cf->io.win[0].base;
432 for (k = 0; k < 0x400; k += 0x10) {
435 p_dev->resource[0]->start = k ^ 0x300;
436 p_dev->io_lines = 16;
437 if (!pcmcia_request_io(p_dev))
443 static int mhz_mfc_config(struct pcmcia_device *link)
445 struct net_device *dev = link->priv;
446 struct smc_private *smc = netdev_priv(dev);
451 link->conf.Attributes |= CONF_ENABLE_SPKR;
452 link->conf.Status = CCSR_AUDIO_ENA;
453 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
454 link->resource[1]->end = 8;
456 /* The Megahertz combo cards have modem-like CIS entries, so
457 we have to explicitly try a bunch of port combinations. */
458 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
461 dev->base_addr = link->resource[0]->start;
463 /* Allocate a memory window, for accessing the ISR */
464 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
465 req.Base = req.Size = 0;
467 i = pcmcia_request_window(link, &req, &link->win);
471 smc->base = ioremap(req.Base, req.Size);
472 offset = (smc->manfid == MANFID_MOTOROLA) ? link->conf.ConfigBase : 0;
473 i = pcmcia_map_mem_page(link, link->win, offset);
475 (smc->manfid == MANFID_MEGAHERTZ) &&
476 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
477 mhz_3288_power(link);
482 static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
486 struct net_device *dev = priv;
490 if (pcmcia_parse_tuple(tuple, &parse))
493 buf = parse.version_1.str + parse.version_1.ofs[3];
495 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
501 static int mhz_setup(struct pcmcia_device *link)
503 struct net_device *dev = link->priv;
508 /* Read the station address from the CIS. It is stored as the last
509 (fourth) string in the Version 1 Version/ID tuple. */
510 if ((link->prod_id[3]) &&
511 (cvt_ascii_address(dev, link->prod_id[3]) == 0))
514 /* Workarounds for broken cards start here. */
515 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
516 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
519 /* Another possibility: for the EM3288, in a special tuple */
521 len = pcmcia_get_tuple(link, 0x81, &buf);
522 if (buf && len >= 13) {
524 if (cvt_ascii_address(dev, buf) == 0)
532 /*======================================================================
534 Configuration stuff for the Motorola Mariner
536 mot_config() writes directly to the Mariner configuration
537 registers because the CIS is just bogus.
539 ======================================================================*/
541 static void mot_config(struct pcmcia_device *link)
543 struct net_device *dev = link->priv;
544 struct smc_private *smc = netdev_priv(dev);
545 unsigned int ioaddr = dev->base_addr;
546 unsigned int iouart = link->resource[1]->start;
548 /* Set UART base address and force map with COR bit 1 */
549 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
550 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
551 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
553 /* Set SMC base address and force map with COR bit 1 */
554 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
555 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
556 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
558 /* Wait for things to settle down */
562 static int mot_setup(struct pcmcia_device *link)
564 struct net_device *dev = link->priv;
565 unsigned int ioaddr = dev->base_addr;
569 /* Read Ethernet address from Serial EEPROM */
571 for (i = 0; i < 3; i++) {
573 outw(MOT_EEPROM + i, ioaddr + POINTER);
575 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
577 for (loop = wait = 0; loop < 200; loop++) {
579 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
580 if (wait == 0) break;
586 addr = inw(ioaddr + GENERAL);
587 dev->dev_addr[2*i] = addr & 0xff;
588 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
594 /*====================================================================*/
596 static int smc_configcheck(struct pcmcia_device *p_dev,
597 cistpl_cftable_entry_t *cf,
598 cistpl_cftable_entry_t *dflt,
602 p_dev->resource[0]->start = cf->io.win[0].base;
603 p_dev->io_lines = cf->io.flags & CISTPL_IO_LINES_MASK;
604 return pcmcia_request_io(p_dev);
607 static int smc_config(struct pcmcia_device *link)
609 struct net_device *dev = link->priv;
612 link->resource[0]->end = 16;
613 i = pcmcia_loop_config(link, smc_configcheck, NULL);
615 dev->base_addr = link->resource[0]->start;
621 static int smc_setup(struct pcmcia_device *link)
623 struct net_device *dev = link->priv;
625 /* Check for a LAN function extension tuple */
626 if (!pcmcia_get_mac_from_cis(link, dev))
629 /* Try the third string in the Version 1 Version/ID tuple. */
630 if (link->prod_id[2]) {
631 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
637 /*====================================================================*/
639 static int osi_config(struct pcmcia_device *link)
641 struct net_device *dev = link->priv;
642 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
645 link->conf.Attributes |= CONF_ENABLE_SPKR;
646 link->conf.Status = CCSR_AUDIO_ENA;
647 link->resource[0]->end = 64;
648 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
649 link->resource[1]->end = 8;
651 /* Enable Hard Decode, LAN, Modem */
652 link->conf.ConfigIndex = 0x23;
655 for (i = j = 0; j < 4; j++) {
656 link->resource[1]->start = com[j];
657 i = pcmcia_request_io(link);
662 /* Fallback: turn off hard decode */
663 link->conf.ConfigIndex = 0x03;
664 link->resource[1]->end = 0;
665 i = pcmcia_request_io(link);
667 dev->base_addr = link->resource[0]->start + 0x10;
671 static int osi_load_firmware(struct pcmcia_device *link)
673 const struct firmware *fw;
676 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
678 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
682 /* Download the Seven of Diamonds firmware */
683 for (i = 0; i < fw->size; i++) {
684 outb(fw->data[i], link->resource[0]->start + 2);
687 release_firmware(fw);
691 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
695 struct net_device *dev = priv;
698 if (tuple->TupleDataLen < 8)
700 if (tuple->TupleData[0] != 0x04)
702 for (i = 0; i < 6; i++)
703 dev->dev_addr[i] = tuple->TupleData[i+2];
708 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
710 struct net_device *dev = link->priv;
713 /* Read the station address from tuple 0x90, subtuple 0x04 */
714 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
717 if (((manfid == MANFID_OSITECH) &&
718 (cardid == PRODID_OSITECH_SEVEN)) ||
719 ((manfid == MANFID_PSION) &&
720 (cardid == PRODID_PSION_NET100))) {
721 rc = osi_load_firmware(link);
724 } else if (manfid == MANFID_OSITECH) {
725 /* Make sure both functions are powered up */
726 set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR);
727 /* Now, turn on the interrupt for both card functions */
728 set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR);
729 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
730 inw(link->resource[0]->start + OSITECH_AUI_PWR),
731 inw(link->resource[0]->start + OSITECH_RESET_ISR));
736 static int smc91c92_suspend(struct pcmcia_device *link)
738 struct net_device *dev = link->priv;
741 netif_device_detach(dev);
746 static int smc91c92_resume(struct pcmcia_device *link)
748 struct net_device *dev = link->priv;
749 struct smc_private *smc = netdev_priv(dev);
752 if ((smc->manfid == MANFID_MEGAHERTZ) &&
753 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
754 mhz_3288_power(link);
755 if (smc->manfid == MANFID_MOTOROLA)
757 if ((smc->manfid == MANFID_OSITECH) &&
758 (smc->cardid != PRODID_OSITECH_SEVEN)) {
759 /* Power up the card and enable interrupts */
760 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
761 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
763 if (((smc->manfid == MANFID_OSITECH) &&
764 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
765 ((smc->manfid == MANFID_PSION) &&
766 (smc->cardid == PRODID_PSION_NET100))) {
767 i = osi_load_firmware(link);
769 pr_err("smc91c92_cs: Failed to load firmware\n");
775 netif_device_attach(dev);
782 /*======================================================================
784 This verifies that the chip is some SMC91cXX variant, and returns
785 the revision code if successful. Otherwise, it returns -ENODEV.
787 ======================================================================*/
789 static int check_sig(struct pcmcia_device *link)
791 struct net_device *dev = link->priv;
792 unsigned int ioaddr = dev->base_addr;
797 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
798 /* Try powering up the chip */
799 outw(0, ioaddr + CONTROL);
803 /* Try setting bus width */
804 width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO);
805 s = inb(ioaddr + CONFIG);
810 outb(s, ioaddr + CONFIG);
812 /* Check Base Address Register to make sure bus width is OK */
813 s = inw(ioaddr + BASE_ADDR);
814 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
815 ((s >> 8) != (s & 0xff))) {
817 s = inw(ioaddr + REVISION);
823 .Attributes = CONF_IO_CHANGE_WIDTH,
825 pr_info("using 8-bit IO window\n");
827 smc91c92_suspend(link);
828 pcmcia_modify_configuration(link, &mod);
829 smc91c92_resume(link);
830 return check_sig(link);
835 /*======================================================================
837 smc91c92_config() is scheduled to run after a CARD_INSERTION event
838 is received, to configure the PCMCIA socket, and to make the
839 ethernet device available to the system.
841 ======================================================================*/
843 static int smc91c92_config(struct pcmcia_device *link)
845 struct net_device *dev = link->priv;
846 struct smc_private *smc = netdev_priv(dev);
852 dev_dbg(&link->dev, "smc91c92_config\n");
854 smc->manfid = link->manf_id;
855 smc->cardid = link->card_id;
857 if ((smc->manfid == MANFID_OSITECH) &&
858 (smc->cardid != PRODID_OSITECH_SEVEN)) {
859 i = osi_config(link);
860 } else if ((smc->manfid == MANFID_MOTOROLA) ||
861 ((smc->manfid == MANFID_MEGAHERTZ) &&
862 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
863 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
864 i = mhz_mfc_config(link);
866 i = smc_config(link);
871 i = pcmcia_request_irq(link, smc_interrupt);
874 i = pcmcia_request_configuration(link, &link->conf);
878 if (smc->manfid == MANFID_MOTOROLA)
881 dev->irq = link->irq;
883 if ((if_port >= 0) && (if_port <= 2))
884 dev->if_port = if_port;
886 dev_notice(&link->dev, "invalid if_port requested\n");
888 switch (smc->manfid) {
891 i = osi_setup(link, smc->manfid, smc->cardid); break;
893 case MANFID_NEW_MEDIA:
894 i = smc_setup(link); break;
895 case 0x128: /* For broken Megahertz cards */
896 case MANFID_MEGAHERTZ:
897 i = mhz_setup(link); break;
898 case MANFID_MOTOROLA:
899 default: /* get the hw address from EEPROM */
900 i = mot_setup(link); break;
904 dev_notice(&link->dev, "Unable to find hardware address.\n");
911 rev = check_sig(link);
915 case 3: name = "92"; break;
916 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
917 case 5: name = "95"; break;
918 case 7: name = "100"; break;
919 case 8: name = "100-FD"; break;
920 case 9: name = "110"; break;
923 ioaddr = dev->base_addr;
927 mir = inw(ioaddr + MEMINFO) & 0xff;
928 if (mir == 0xff) mir++;
929 /* Get scale factor for memory size */
930 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
931 mir *= 128 * (1<<((mcr >> 9) & 7));
933 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
934 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
935 if (smc->manfid == MANFID_OSITECH)
936 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
938 smc->cfg |= CFG_MII_SELECT;
942 if (smc->cfg & CFG_MII_SELECT) {
945 for (i = 0; i < 32; i++) {
946 j = mdio_read(dev, i, 1);
947 if ((j != 0) && (j != 0xffff)) break;
949 smc->mii_if.phy_id = (i < 32) ? i : -1;
954 SET_NETDEV_DEV(dev, &link->dev);
956 if (register_netdev(dev) != 0) {
957 dev_err(&link->dev, "register_netdev() failed\n");
961 netdev_info(dev, "smc91c%s rev %d: io %#3lx, irq %d, hw_addr %pM\n",
962 name, (rev & 0x0f), dev->base_addr, dev->irq, dev->dev_addr);
966 netdev_info(dev, " %lu byte", mir);
968 netdev_info(dev, " %lu kb", mir>>10);
969 pr_cont(" buffer, %s xcvr\n",
970 (smc->cfg & CFG_MII_SELECT) ? "MII" : if_names[dev->if_port]);
973 if (smc->cfg & CFG_MII_SELECT) {
974 if (smc->mii_if.phy_id != -1) {
975 netdev_dbg(dev, " MII transceiver at index %d, status %x\n",
976 smc->mii_if.phy_id, j);
978 netdev_notice(dev, " No MII transceivers found!\n");
984 unregister_netdev(dev);
986 smc91c92_release(link);
989 } /* smc91c92_config */
991 /*======================================================================
993 After a card is removed, smc91c92_release() will unregister the net
994 device, and release the PCMCIA configuration. If the device is
995 still open, this will be postponed until it is closed.
997 ======================================================================*/
999 static void smc91c92_release(struct pcmcia_device *link)
1001 dev_dbg(&link->dev, "smc91c92_release\n");
1003 struct net_device *dev = link->priv;
1004 struct smc_private *smc = netdev_priv(dev);
1007 pcmcia_disable_device(link);
1010 /*======================================================================
1012 MII interface support for SMC91cXX based cards
1013 ======================================================================*/
1015 #define MDIO_SHIFT_CLK 0x04
1016 #define MDIO_DATA_OUT 0x01
1017 #define MDIO_DIR_WRITE 0x08
1018 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1019 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1020 #define MDIO_DATA_READ 0x02
1022 static void mdio_sync(unsigned int addr)
1025 for (bits = 0; bits < 32; bits++) {
1026 outb(MDIO_DATA_WRITE1, addr);
1027 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1031 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1033 unsigned int addr = dev->base_addr + MGMT;
1034 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1038 for (i = 13; i >= 0; i--) {
1039 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1041 outb(dat | MDIO_SHIFT_CLK, addr);
1043 for (i = 19; i > 0; i--) {
1045 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1046 outb(MDIO_SHIFT_CLK, addr);
1048 return (retval>>1) & 0xffff;
1051 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1053 unsigned int addr = dev->base_addr + MGMT;
1054 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1058 for (i = 31; i >= 0; i--) {
1059 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1061 outb(dat | MDIO_SHIFT_CLK, addr);
1063 for (i = 1; i >= 0; i--) {
1065 outb(MDIO_SHIFT_CLK, addr);
1069 /*======================================================================
1071 The driver core code, most of which should be common with a
1072 non-PCMCIA implementation.
1074 ======================================================================*/
1077 static void smc_dump(struct net_device *dev)
1079 unsigned int ioaddr = dev->base_addr;
1081 save = inw(ioaddr + BANK_SELECT);
1082 for (w = 0; w < 4; w++) {
1084 netdev_printk(KERN_DEBUG, dev, "bank %d: ", w);
1085 for (i = 0; i < 14; i += 2)
1086 pr_cont(" %04x", inw(ioaddr + i));
1089 outw(save, ioaddr + BANK_SELECT);
1093 static int smc_open(struct net_device *dev)
1095 struct smc_private *smc = netdev_priv(dev);
1096 struct pcmcia_device *link = smc->p_dev;
1098 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1099 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1104 /* Check that the PCMCIA card is still here. */
1105 if (!pcmcia_dev_present(link))
1107 /* Physical device present signature. */
1108 if (check_sig(link) < 0) {
1109 netdev_info(dev, "Yikes! Bad chip signature!\n");
1114 netif_start_queue(dev);
1115 smc->saved_skb = NULL;
1116 smc->packets_waiting = 0;
1119 init_timer(&smc->media);
1120 smc->media.function = media_check;
1121 smc->media.data = (u_long) dev;
1122 smc->media.expires = jiffies + HZ;
1123 add_timer(&smc->media);
1128 /*====================================================================*/
1130 static int smc_close(struct net_device *dev)
1132 struct smc_private *smc = netdev_priv(dev);
1133 struct pcmcia_device *link = smc->p_dev;
1134 unsigned int ioaddr = dev->base_addr;
1136 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1137 dev->name, inw(ioaddr + BANK_SELECT));
1139 netif_stop_queue(dev);
1141 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1142 Don't bother to check for chip present. */
1143 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1144 outw(0, ioaddr + INTERRUPT);
1146 mask_bits(0xff00, ioaddr + RCR);
1147 mask_bits(0xff00, ioaddr + TCR);
1149 /* Put the chip into power-down mode. */
1151 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1154 del_timer_sync(&smc->media);
1159 /*======================================================================
1161 Transfer a packet to the hardware and trigger the packet send.
1162 This may be called at either from either the Tx queue code
1163 or the interrupt handler.
1165 ======================================================================*/
1167 static void smc_hardware_send_packet(struct net_device * dev)
1169 struct smc_private *smc = netdev_priv(dev);
1170 struct sk_buff *skb = smc->saved_skb;
1171 unsigned int ioaddr = dev->base_addr;
1175 netdev_err(dev, "In XMIT with no packet to send\n");
1179 /* There should be a packet slot waiting. */
1180 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1181 if (packet_no & 0x80) {
1182 /* If not, there is a hardware problem! Likely an ejected card. */
1183 netdev_warn(dev, "hardware Tx buffer allocation failed, status %#2.2x\n",
1185 dev_kfree_skb_irq(skb);
1186 smc->saved_skb = NULL;
1187 netif_start_queue(dev);
1191 dev->stats.tx_bytes += skb->len;
1192 /* The card should use the just-allocated buffer. */
1193 outw(packet_no, ioaddr + PNR_ARR);
1194 /* point to the beginning of the packet */
1195 outw(PTR_AUTOINC , ioaddr + POINTER);
1197 /* Send the packet length (+6 for status, length and ctl byte)
1198 and the status word (set to zeros). */
1200 u_char *buf = skb->data;
1201 u_int length = skb->len; /* The chip will pad to ethernet min. */
1203 netdev_dbg(dev, "Trying to xmit packet of length %d\n", length);
1205 /* send the packet length: +6 for status word, length, and ctl */
1206 outw(0, ioaddr + DATA_1);
1207 outw(length + 6, ioaddr + DATA_1);
1208 outsw(ioaddr + DATA_1, buf, length >> 1);
1210 /* The odd last byte, if there is one, goes in the control word. */
1211 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1214 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1215 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1216 (inw(ioaddr + INTERRUPT) & 0xff00),
1217 ioaddr + INTERRUPT);
1219 /* The chip does the rest of the work. */
1220 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1222 smc->saved_skb = NULL;
1223 dev_kfree_skb_irq(skb);
1224 dev->trans_start = jiffies;
1225 netif_start_queue(dev);
1228 /*====================================================================*/
1230 static void smc_tx_timeout(struct net_device *dev)
1232 struct smc_private *smc = netdev_priv(dev);
1233 unsigned int ioaddr = dev->base_addr;
1235 netdev_notice(dev, "transmit timed out, Tx_status %2.2x status %4.4x.\n",
1236 inw(ioaddr)&0xff, inw(ioaddr + 2));
1237 dev->stats.tx_errors++;
1239 dev->trans_start = jiffies; /* prevent tx timeout */
1240 smc->saved_skb = NULL;
1241 netif_wake_queue(dev);
1244 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1245 struct net_device *dev)
1247 struct smc_private *smc = netdev_priv(dev);
1248 unsigned int ioaddr = dev->base_addr;
1251 unsigned long flags;
1253 netif_stop_queue(dev);
1255 netdev_dbg(dev, "smc_start_xmit(length = %d) called, status %04x\n",
1256 skb->len, inw(ioaddr + 2));
1258 if (smc->saved_skb) {
1259 /* THIS SHOULD NEVER HAPPEN. */
1260 dev->stats.tx_aborted_errors++;
1261 netdev_printk(KERN_DEBUG, dev,
1262 "Internal error -- sent packet while busy\n");
1263 return NETDEV_TX_BUSY;
1265 smc->saved_skb = skb;
1267 num_pages = skb->len >> 8;
1269 if (num_pages > 7) {
1270 netdev_err(dev, "Far too big packet error: %d pages\n", num_pages);
1271 dev_kfree_skb (skb);
1272 smc->saved_skb = NULL;
1273 dev->stats.tx_dropped++;
1274 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1276 /* A packet is now waiting. */
1277 smc->packets_waiting++;
1279 spin_lock_irqsave(&smc->lock, flags);
1280 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1282 /* need MC_RESET to keep the memory consistent. errata? */
1284 outw(MC_RESET, ioaddr + MMU_CMD);
1288 /* Allocate the memory; send the packet now if we win. */
1289 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1290 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1291 ir = inw(ioaddr+INTERRUPT);
1292 if (ir & IM_ALLOC_INT) {
1293 /* Acknowledge the interrupt, send the packet. */
1294 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1295 smc_hardware_send_packet(dev); /* Send the packet now.. */
1296 spin_unlock_irqrestore(&smc->lock, flags);
1297 return NETDEV_TX_OK;
1301 /* Otherwise defer until the Tx-space-allocated interrupt. */
1302 pr_debug("%s: memory allocation deferred.\n", dev->name);
1303 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1304 spin_unlock_irqrestore(&smc->lock, flags);
1306 return NETDEV_TX_OK;
1309 /*======================================================================
1311 Handle a Tx anomolous event. Entered while in Window 2.
1313 ======================================================================*/
1315 static void smc_tx_err(struct net_device * dev)
1317 struct smc_private *smc = netdev_priv(dev);
1318 unsigned int ioaddr = dev->base_addr;
1319 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1320 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1323 /* select this as the packet to read from */
1324 outw(packet_no, ioaddr + PNR_ARR);
1326 /* read the first word from this packet */
1327 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1329 tx_status = inw(ioaddr + DATA_1);
1331 dev->stats.tx_errors++;
1332 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1333 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1334 if (tx_status & TS_16COL) {
1335 dev->stats.tx_aborted_errors++;
1339 if (tx_status & TS_SUCCESS) {
1340 netdev_notice(dev, "Successful packet caused error interrupt?\n");
1342 /* re-enable transmit */
1344 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1347 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1349 /* one less packet waiting for me */
1350 smc->packets_waiting--;
1352 outw(saved_packet, ioaddr + PNR_ARR);
1355 /*====================================================================*/
1357 static void smc_eph_irq(struct net_device *dev)
1359 struct smc_private *smc = netdev_priv(dev);
1360 unsigned int ioaddr = dev->base_addr;
1361 u_short card_stats, ephs;
1364 ephs = inw(ioaddr + EPH);
1365 pr_debug("%s: Ethernet protocol handler interrupt, status"
1366 " %4.4x.\n", dev->name, ephs);
1367 /* Could be a counter roll-over warning: update stats. */
1368 card_stats = inw(ioaddr + COUNTER);
1369 /* single collisions */
1370 dev->stats.collisions += card_stats & 0xF;
1372 /* multiple collisions */
1373 dev->stats.collisions += card_stats & 0xF;
1374 #if 0 /* These are for when linux supports these statistics */
1375 card_stats >>= 4; /* deferred */
1376 card_stats >>= 4; /* excess deferred */
1378 /* If we had a transmit error we must re-enable the transmitter. */
1379 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1381 /* Clear a link error interrupt. */
1383 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1384 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1389 /*====================================================================*/
1391 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1393 struct net_device *dev = dev_id;
1394 struct smc_private *smc = netdev_priv(dev);
1395 unsigned int ioaddr;
1396 u_short saved_bank, saved_pointer, mask, status;
1397 unsigned int handled = 1;
1398 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1400 if (!netif_device_present(dev))
1403 ioaddr = dev->base_addr;
1405 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1408 spin_lock(&smc->lock);
1410 saved_bank = inw(ioaddr + BANK_SELECT);
1411 if ((saved_bank & 0xff00) != 0x3300) {
1412 /* The device does not exist -- the card could be off-line, or
1413 maybe it has been ejected. */
1414 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1415 "/ejected device.\n", dev->name, irq);
1421 saved_pointer = inw(ioaddr + POINTER);
1422 mask = inw(ioaddr + INTERRUPT) >> 8;
1423 /* clear all interrupts */
1424 outw(0, ioaddr + INTERRUPT);
1426 do { /* read the status flag, and mask it */
1427 status = inw(ioaddr + INTERRUPT) & 0xff;
1428 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1430 if ((status & mask) == 0) {
1431 if (bogus_cnt == INTR_WORK)
1435 if (status & IM_RCV_INT) {
1436 /* Got a packet(s). */
1439 if (status & IM_TX_INT) {
1441 outw(IM_TX_INT, ioaddr + INTERRUPT);
1444 if (status & IM_TX_EMPTY_INT) {
1445 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1446 mask &= ~IM_TX_EMPTY_INT;
1447 dev->stats.tx_packets += smc->packets_waiting;
1448 smc->packets_waiting = 0;
1450 if (status & IM_ALLOC_INT) {
1451 /* Clear this interrupt so it doesn't happen again */
1452 mask &= ~IM_ALLOC_INT;
1454 smc_hardware_send_packet(dev);
1456 /* enable xmit interrupts based on this */
1457 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1459 /* and let the card send more packets to me */
1460 netif_wake_queue(dev);
1462 if (status & IM_RX_OVRN_INT) {
1463 dev->stats.rx_errors++;
1464 dev->stats.rx_fifo_errors++;
1466 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1467 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1469 if (status & IM_EPH_INT)
1471 } while (--bogus_cnt);
1473 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1474 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1476 /* restore state register */
1477 outw((mask<<8), ioaddr + INTERRUPT);
1478 outw(saved_pointer, ioaddr + POINTER);
1479 SMC_SELECT_BANK(saved_bank);
1481 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1485 if ((smc->manfid == MANFID_OSITECH) &&
1486 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1487 /* Retrigger interrupt if needed */
1488 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1489 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1491 if (smc->manfid == MANFID_MOTOROLA) {
1493 cor = readb(smc->base + MOT_UART + CISREG_COR);
1494 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1495 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1496 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1497 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1498 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1501 if ((smc->base != NULL) && /* Megahertz MFC's */
1502 (smc->manfid == MANFID_MEGAHERTZ) &&
1503 (smc->cardid == PRODID_MEGAHERTZ_EM3288)) {
1506 tmp = readb(smc->base+MEGAHERTZ_ISR);
1507 tmp = readb(smc->base+MEGAHERTZ_ISR);
1509 /* Retrigger interrupt if needed */
1510 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1511 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1514 spin_unlock(&smc->lock);
1515 return IRQ_RETVAL(handled);
1518 /*====================================================================*/
1520 static void smc_rx(struct net_device *dev)
1522 unsigned int ioaddr = dev->base_addr;
1524 int packet_length; /* Caution: not frame length, rather words
1525 to transfer from the chip. */
1527 /* Assertion: we are in Window 2. */
1529 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1530 netdev_err(dev, "smc_rx() with nothing on Rx FIFO\n");
1534 /* Reset the read pointer, and read the status and packet length. */
1535 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1536 rx_status = inw(ioaddr + DATA_1);
1537 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1539 pr_debug("%s: Receive status %4.4x length %d.\n",
1540 dev->name, rx_status, packet_length);
1542 if (!(rx_status & RS_ERRORS)) {
1543 /* do stuff to make a new packet */
1544 struct sk_buff *skb;
1546 /* Note: packet_length adds 5 or 6 extra bytes here! */
1547 skb = dev_alloc_skb(packet_length+2);
1550 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1551 dev->stats.rx_dropped++;
1552 outw(MC_RELEASE, ioaddr + MMU_CMD);
1556 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1557 skb_reserve(skb, 2);
1558 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1559 (packet_length+1)>>1);
1560 skb->protocol = eth_type_trans(skb, dev);
1563 dev->last_rx = jiffies;
1564 dev->stats.rx_packets++;
1565 dev->stats.rx_bytes += packet_length;
1566 if (rx_status & RS_MULTICAST)
1567 dev->stats.multicast++;
1570 dev->stats.rx_errors++;
1572 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1573 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1574 dev->stats.rx_length_errors++;
1575 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1577 /* Let the MMU free the memory of this packet. */
1578 outw(MC_RELEASE, ioaddr + MMU_CMD);
1581 /*======================================================================
1583 Set the receive mode.
1585 This routine is used by both the protocol level to notify us of
1586 promiscuous/multicast mode changes, and by the open/reset code to
1587 initialize the Rx registers. We always set the multicast list and
1588 leave the receiver running.
1590 ======================================================================*/
1592 static void set_rx_mode(struct net_device *dev)
1594 unsigned int ioaddr = dev->base_addr;
1595 struct smc_private *smc = netdev_priv(dev);
1596 unsigned char multicast_table[8];
1597 unsigned long flags;
1598 u_short rx_cfg_setting;
1601 memset(multicast_table, 0, sizeof(multicast_table));
1603 if (dev->flags & IFF_PROMISC) {
1604 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1605 } else if (dev->flags & IFF_ALLMULTI)
1606 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1608 if (!netdev_mc_empty(dev)) {
1609 struct netdev_hw_addr *ha;
1611 netdev_for_each_mc_addr(ha, dev) {
1612 u_int position = ether_crc(6, ha->addr);
1613 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1616 rx_cfg_setting = RxStripCRC | RxEnable;
1619 /* Load MC table and Rx setting into the chip without interrupts. */
1620 spin_lock_irqsave(&smc->lock, flags);
1622 for (i = 0; i < 8; i++)
1623 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1625 outw(rx_cfg_setting, ioaddr + RCR);
1627 spin_unlock_irqrestore(&smc->lock, flags);
1630 /*======================================================================
1632 Senses when a card's config changes. Here, it's coax or TP.
1634 ======================================================================*/
1636 static int s9k_config(struct net_device *dev, struct ifmap *map)
1638 struct smc_private *smc = netdev_priv(dev);
1639 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1640 if (smc->cfg & CFG_MII_SELECT)
1642 else if (map->port > 2)
1644 dev->if_port = map->port;
1645 netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
1651 /*======================================================================
1653 Reset the chip, reloading every register that might be corrupted.
1655 ======================================================================*/
1658 Set transceiver type, perhaps to something other than what the user
1659 specified in dev->if_port.
1661 static void smc_set_xcvr(struct net_device *dev, int if_port)
1663 struct smc_private *smc = netdev_priv(dev);
1664 unsigned int ioaddr = dev->base_addr;
1667 saved_bank = inw(ioaddr + BANK_SELECT);
1670 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1671 if ((smc->manfid == MANFID_OSITECH) &&
1672 (smc->cardid != PRODID_OSITECH_SEVEN))
1673 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1674 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1676 outw(smc->cfg, ioaddr + CONFIG);
1677 if ((smc->manfid == MANFID_OSITECH) &&
1678 (smc->cardid != PRODID_OSITECH_SEVEN))
1679 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1680 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1682 SMC_SELECT_BANK(saved_bank);
1685 static void smc_reset(struct net_device *dev)
1687 unsigned int ioaddr = dev->base_addr;
1688 struct smc_private *smc = netdev_priv(dev);
1691 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1693 /* The first interaction must be a write to bring the chip out
1696 /* Reset the chip. */
1697 outw(RCR_SOFTRESET, ioaddr + RCR);
1700 /* Clear the transmit and receive configuration registers. */
1701 outw(RCR_CLEAR, ioaddr + RCR);
1702 outw(TCR_CLEAR, ioaddr + TCR);
1704 /* Set the Window 1 control, configuration and station addr registers.
1705 No point in writing the I/O base register ;-> */
1707 /* Automatically release successfully transmitted packets,
1708 Accept link errors, counter and Tx error interrupts. */
1709 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1711 smc_set_xcvr(dev, dev->if_port);
1712 if ((smc->manfid == MANFID_OSITECH) &&
1713 (smc->cardid != PRODID_OSITECH_SEVEN))
1714 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1715 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1716 ioaddr - 0x10 + OSITECH_AUI_PWR);
1718 /* Fill in the physical address. The databook is wrong about the order! */
1719 for (i = 0; i < 6; i += 2)
1720 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1721 ioaddr + ADDR0 + i);
1725 outw(MC_RESET, ioaddr + MMU_CMD);
1726 outw(0, ioaddr + INTERRUPT);
1728 /* Re-enable the chip. */
1730 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1731 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1734 if (smc->cfg & CFG_MII_SELECT) {
1738 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1740 /* Advertise 100F, 100H, 10F, 10H */
1741 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1743 /* Restart MII autonegotiation */
1744 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1745 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1748 /* Enable interrupts. */
1750 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1751 ioaddr + INTERRUPT);
1754 /*======================================================================
1756 Media selection timer routine
1758 ======================================================================*/
1760 static void media_check(u_long arg)
1762 struct net_device *dev = (struct net_device *) arg;
1763 struct smc_private *smc = netdev_priv(dev);
1764 unsigned int ioaddr = dev->base_addr;
1765 u_short i, media, saved_bank;
1767 unsigned long flags;
1769 spin_lock_irqsave(&smc->lock, flags);
1771 saved_bank = inw(ioaddr + BANK_SELECT);
1773 if (!netif_device_present(dev))
1778 /* need MC_RESET to keep the memory consistent. errata? */
1780 outw(MC_RESET, ioaddr + MMU_CMD);
1783 i = inw(ioaddr + INTERRUPT);
1785 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1787 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1789 SMC_SELECT_BANK(saved_bank);
1790 spin_unlock_irqrestore(&smc->lock, flags);
1792 /* Check for pending interrupt with watchdog flag set: with
1793 this, we can limp along even if the interrupt is blocked */
1794 if (smc->watchdog++ && ((i>>8) & i)) {
1795 if (!smc->fast_poll)
1796 netdev_info(dev, "interrupt(s) dropped!\n");
1797 local_irq_save(flags);
1798 smc_interrupt(dev->irq, dev);
1799 local_irq_restore(flags);
1800 smc->fast_poll = HZ;
1802 if (smc->fast_poll) {
1804 smc->media.expires = jiffies + HZ/100;
1805 add_timer(&smc->media);
1809 spin_lock_irqsave(&smc->lock, flags);
1811 saved_bank = inw(ioaddr + BANK_SELECT);
1813 if (smc->cfg & CFG_MII_SELECT) {
1814 if (smc->mii_if.phy_id < 0)
1818 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1819 if (!link || (link == 0xffff)) {
1820 netdev_info(dev, "MII is missing!\n");
1821 smc->mii_if.phy_id = -1;
1826 if (link != smc->link_status) {
1827 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1828 netdev_info(dev, "%s link beat\n", link ? "found" : "lost");
1829 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1832 netdev_info(dev, "autonegotiation complete: "
1833 "%dbaseT-%cD selected\n",
1834 (p & 0x0180) ? 100 : 10, smc->duplex ? 'F' : 'H');
1837 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1838 smc->link_status = link;
1843 /* Ignore collisions unless we've had no rx's recently */
1844 if (time_after(jiffies, dev->last_rx + HZ)) {
1845 if (smc->tx_err || (smc->media_status & EPH_16COL))
1850 if (media != smc->media_status) {
1851 if ((media & smc->media_status & 1) &&
1852 ((smc->media_status ^ media) & EPH_LINK_OK))
1853 netdev_info(dev, "%s link beat\n",
1854 smc->media_status & EPH_LINK_OK ? "lost" : "found");
1855 else if ((media & smc->media_status & 2) &&
1856 ((smc->media_status ^ media) & EPH_16COL))
1857 netdev_info(dev, "coax cable %s\n",
1858 media & EPH_16COL ? "problem" : "ok");
1859 if (dev->if_port == 0) {
1861 if (media & EPH_LINK_OK)
1862 netdev_info(dev, "flipped to 10baseT\n");
1864 smc_set_xcvr(dev, 2);
1866 if (media & EPH_16COL)
1867 smc_set_xcvr(dev, 1);
1869 netdev_info(dev, "flipped to 10base2\n");
1872 smc->media_status = media;
1876 smc->media.expires = jiffies + HZ;
1877 add_timer(&smc->media);
1878 SMC_SELECT_BANK(saved_bank);
1879 spin_unlock_irqrestore(&smc->lock, flags);
1882 static int smc_link_ok(struct net_device *dev)
1884 unsigned int ioaddr = dev->base_addr;
1885 struct smc_private *smc = netdev_priv(dev);
1887 if (smc->cfg & CFG_MII_SELECT) {
1888 return mii_link_ok(&smc->mii_if);
1891 return inw(ioaddr + EPH) & EPH_LINK_OK;
1895 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1898 unsigned int ioaddr = dev->base_addr;
1900 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1901 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1904 tmp = inw(ioaddr + CONFIG);
1905 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1906 ecmd->transceiver = XCVR_INTERNAL;
1907 ecmd->speed = SPEED_10;
1908 ecmd->phy_address = ioaddr + MGMT;
1911 tmp = inw(ioaddr + TCR);
1912 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1917 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1920 unsigned int ioaddr = dev->base_addr;
1922 if (ecmd->speed != SPEED_10)
1924 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1926 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1928 if (ecmd->transceiver != XCVR_INTERNAL)
1931 if (ecmd->port == PORT_AUI)
1932 smc_set_xcvr(dev, 1);
1934 smc_set_xcvr(dev, 0);
1937 tmp = inw(ioaddr + TCR);
1938 if (ecmd->duplex == DUPLEX_FULL)
1942 outw(tmp, ioaddr + TCR);
1947 static int check_if_running(struct net_device *dev)
1949 if (!netif_running(dev))
1954 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1956 strcpy(info->driver, DRV_NAME);
1957 strcpy(info->version, DRV_VERSION);
1960 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1962 struct smc_private *smc = netdev_priv(dev);
1963 unsigned int ioaddr = dev->base_addr;
1964 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1966 unsigned long flags;
1968 spin_lock_irqsave(&smc->lock, flags);
1970 if (smc->cfg & CFG_MII_SELECT)
1971 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1973 ret = smc_netdev_get_ecmd(dev, ecmd);
1974 SMC_SELECT_BANK(saved_bank);
1975 spin_unlock_irqrestore(&smc->lock, flags);
1979 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1981 struct smc_private *smc = netdev_priv(dev);
1982 unsigned int ioaddr = dev->base_addr;
1983 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1985 unsigned long flags;
1987 spin_lock_irqsave(&smc->lock, flags);
1989 if (smc->cfg & CFG_MII_SELECT)
1990 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
1992 ret = smc_netdev_set_ecmd(dev, ecmd);
1993 SMC_SELECT_BANK(saved_bank);
1994 spin_unlock_irqrestore(&smc->lock, flags);
1998 static u32 smc_get_link(struct net_device *dev)
2000 struct smc_private *smc = netdev_priv(dev);
2001 unsigned int ioaddr = dev->base_addr;
2002 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2004 unsigned long flags;
2006 spin_lock_irqsave(&smc->lock, flags);
2008 ret = smc_link_ok(dev);
2009 SMC_SELECT_BANK(saved_bank);
2010 spin_unlock_irqrestore(&smc->lock, flags);
2014 static int smc_nway_reset(struct net_device *dev)
2016 struct smc_private *smc = netdev_priv(dev);
2017 if (smc->cfg & CFG_MII_SELECT) {
2018 unsigned int ioaddr = dev->base_addr;
2019 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2023 res = mii_nway_restart(&smc->mii_if);
2024 SMC_SELECT_BANK(saved_bank);
2031 static const struct ethtool_ops ethtool_ops = {
2032 .begin = check_if_running,
2033 .get_drvinfo = smc_get_drvinfo,
2034 .get_settings = smc_get_settings,
2035 .set_settings = smc_set_settings,
2036 .get_link = smc_get_link,
2037 .nway_reset = smc_nway_reset,
2040 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2042 struct smc_private *smc = netdev_priv(dev);
2043 struct mii_ioctl_data *mii = if_mii(rq);
2046 unsigned int ioaddr = dev->base_addr;
2047 unsigned long flags;
2049 if (!netif_running(dev))
2052 spin_lock_irqsave(&smc->lock, flags);
2053 saved_bank = inw(ioaddr + BANK_SELECT);
2055 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2056 SMC_SELECT_BANK(saved_bank);
2057 spin_unlock_irqrestore(&smc->lock, flags);
2061 static struct pcmcia_device_id smc91c92_ids[] = {
2062 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2063 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2064 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2065 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2066 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2067 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2068 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2069 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2070 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2071 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2072 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2073 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2074 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2075 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2076 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2077 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2078 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2079 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2080 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2081 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2082 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2083 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2084 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2085 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2086 /* These conflict with other cards! */
2087 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2088 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2091 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2093 static struct pcmcia_driver smc91c92_cs_driver = {
2094 .owner = THIS_MODULE,
2096 .name = "smc91c92_cs",
2098 .probe = smc91c92_probe,
2099 .remove = smc91c92_detach,
2100 .id_table = smc91c92_ids,
2101 .suspend = smc91c92_suspend,
2102 .resume = smc91c92_resume,
2105 static int __init init_smc91c92_cs(void)
2107 return pcmcia_register_driver(&smc91c92_cs_driver);
2110 static void __exit exit_smc91c92_cs(void)
2112 pcmcia_unregister_driver(&smc91c92_cs_driver);
2115 module_init(init_smc91c92_cs);
2116 module_exit(exit_smc91c92_cs);