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_types.h>
48 #include <pcmcia/cs.h>
49 #include <pcmcia/cistpl.h>
50 #include <pcmcia/cisreg.h>
51 #include <pcmcia/ciscode.h>
52 #include <pcmcia/ds.h>
53 #include <pcmcia/ss.h>
56 #include <asm/system.h>
57 #include <asm/uaccess.h>
59 /*====================================================================*/
61 static const char *if_names[] = { "auto", "10baseT", "10base2"};
64 #define FIRMWARE_NAME "ositech/Xilinx7OD.bin"
66 /* Module parameters */
68 MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
69 MODULE_LICENSE("GPL");
70 MODULE_FIRMWARE(FIRMWARE_NAME);
72 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
75 Transceiver/media type.
77 1 = 10baseT (and autoselect if #define AUTOSELECT),
80 INT_MODULE_PARM(if_port, 0);
83 #define DRV_NAME "smc91c92_cs"
84 #define DRV_VERSION "1.123"
86 /*====================================================================*/
88 /* Operational parameter that usually are not changed. */
90 /* Time in jiffies before concluding Tx hung */
91 #define TX_TIMEOUT ((400*HZ)/1000)
93 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
96 /* Times to check the check the chip before concluding that it doesn't
97 currently have room for another Tx packet. */
98 #define MEMORY_WAIT_TIME 8
101 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->io.NumPorts1 = 16;
330 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
331 link->io.IOAddrLines = 4;
332 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
333 link->irq.Handler = &smc_interrupt;
334 link->conf.Attributes = CONF_ENABLE_IRQ;
335 link->conf.IntType = INT_MEMORY_AND_IO;
337 /* The SMC91c92-specific entries in the device structure. */
338 dev->netdev_ops = &smc_netdev_ops;
339 SET_ETHTOOL_OPS(dev, ðtool_ops);
340 dev->watchdog_timeo = TX_TIMEOUT;
342 smc->mii_if.dev = dev;
343 smc->mii_if.mdio_read = mdio_read;
344 smc->mii_if.mdio_write = mdio_write;
345 smc->mii_if.phy_id_mask = 0x1f;
346 smc->mii_if.reg_num_mask = 0x1f;
348 return smc91c92_config(link);
349 } /* smc91c92_attach */
351 /*======================================================================
353 This deletes a driver "instance". The device is de-registered
354 with Card Services. If it has been released, all local data
355 structures are freed. Otherwise, the structures will be freed
356 when the device is released.
358 ======================================================================*/
360 static void smc91c92_detach(struct pcmcia_device *link)
362 struct net_device *dev = link->priv;
364 dev_dbg(&link->dev, "smc91c92_detach\n");
367 unregister_netdev(dev);
369 smc91c92_release(link);
372 } /* smc91c92_detach */
374 /*====================================================================*/
376 static int cvt_ascii_address(struct net_device *dev, char *s)
382 for (i = 0; i < 6; i++) {
384 for (j = 0; j < 2; j++) {
387 da += ((c >= '0') && (c <= '9')) ?
388 (c - '0') : ((c & 0x0f) + 9);
390 dev->dev_addr[i] = da;
395 /*====================================================================
397 Configuration stuff for Megahertz cards
399 mhz_3288_power() is used to power up a 3288's ethernet chip.
400 mhz_mfc_config() handles socket setup for multifunction (1144
401 and 3288) cards. mhz_setup() gets a card's hardware ethernet
404 ======================================================================*/
406 static int mhz_3288_power(struct pcmcia_device *link)
408 struct net_device *dev = link->priv;
409 struct smc_private *smc = netdev_priv(dev);
412 /* Read the ISR twice... */
413 readb(smc->base+MEGAHERTZ_ISR);
415 readb(smc->base+MEGAHERTZ_ISR);
420 /* Now read and write the COR... */
421 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
423 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
428 static int mhz_mfc_config_check(struct pcmcia_device *p_dev,
429 cistpl_cftable_entry_t *cf,
430 cistpl_cftable_entry_t *dflt,
435 p_dev->io.BasePort2 = cf->io.win[0].base;
436 for (k = 0; k < 0x400; k += 0x10) {
439 p_dev->io.BasePort1 = k ^ 0x300;
440 if (!pcmcia_request_io(p_dev, &p_dev->io))
446 static int mhz_mfc_config(struct pcmcia_device *link)
448 struct net_device *dev = link->priv;
449 struct smc_private *smc = netdev_priv(dev);
454 link->conf.Attributes |= CONF_ENABLE_SPKR;
455 link->conf.Status = CCSR_AUDIO_ENA;
456 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
457 link->io.IOAddrLines = 16;
458 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
459 link->io.NumPorts2 = 8;
461 /* The Megahertz combo cards have modem-like CIS entries, so
462 we have to explicitly try a bunch of port combinations. */
463 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
466 dev->base_addr = link->io.BasePort1;
468 /* Allocate a memory window, for accessing the ISR */
469 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
470 req.Base = req.Size = 0;
472 i = pcmcia_request_window(link, &req, &link->win);
476 smc->base = ioremap(req.Base, req.Size);
477 mem.CardOffset = mem.Page = 0;
478 if (smc->manfid == MANFID_MOTOROLA)
479 mem.CardOffset = link->conf.ConfigBase;
480 i = pcmcia_map_mem_page(link, link->win, &mem);
483 (smc->manfid == MANFID_MEGAHERTZ) &&
484 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
485 mhz_3288_power(link);
490 static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
494 struct net_device *dev = priv;
498 if (pcmcia_parse_tuple(tuple, &parse))
501 buf = parse.version_1.str + parse.version_1.ofs[3];
503 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
509 static int mhz_setup(struct pcmcia_device *link)
511 struct net_device *dev = link->priv;
516 /* Read the station address from the CIS. It is stored as the last
517 (fourth) string in the Version 1 Version/ID tuple. */
518 if ((link->prod_id[3]) &&
519 (cvt_ascii_address(dev, link->prod_id[3]) == 0))
522 /* Workarounds for broken cards start here. */
523 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
524 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
527 /* Another possibility: for the EM3288, in a special tuple */
529 len = pcmcia_get_tuple(link, 0x81, &buf);
530 if (buf && len >= 13) {
532 if (cvt_ascii_address(dev, buf) == 0)
540 /*======================================================================
542 Configuration stuff for the Motorola Mariner
544 mot_config() writes directly to the Mariner configuration
545 registers because the CIS is just bogus.
547 ======================================================================*/
549 static void mot_config(struct pcmcia_device *link)
551 struct net_device *dev = link->priv;
552 struct smc_private *smc = netdev_priv(dev);
553 unsigned int ioaddr = dev->base_addr;
554 unsigned int iouart = link->io.BasePort2;
556 /* Set UART base address and force map with COR bit 1 */
557 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
558 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
559 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
561 /* Set SMC base address and force map with COR bit 1 */
562 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
563 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
564 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
566 /* Wait for things to settle down */
570 static int mot_setup(struct pcmcia_device *link)
572 struct net_device *dev = link->priv;
573 unsigned int ioaddr = dev->base_addr;
577 /* Read Ethernet address from Serial EEPROM */
579 for (i = 0; i < 3; i++) {
581 outw(MOT_EEPROM + i, ioaddr + POINTER);
583 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
585 for (loop = wait = 0; loop < 200; loop++) {
587 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
588 if (wait == 0) break;
594 addr = inw(ioaddr + GENERAL);
595 dev->dev_addr[2*i] = addr & 0xff;
596 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
602 /*====================================================================*/
604 static int smc_configcheck(struct pcmcia_device *p_dev,
605 cistpl_cftable_entry_t *cf,
606 cistpl_cftable_entry_t *dflt,
610 p_dev->io.BasePort1 = cf->io.win[0].base;
611 p_dev->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
612 return pcmcia_request_io(p_dev, &p_dev->io);
615 static int smc_config(struct pcmcia_device *link)
617 struct net_device *dev = link->priv;
620 link->io.NumPorts1 = 16;
621 i = pcmcia_loop_config(link, smc_configcheck, NULL);
623 dev->base_addr = link->io.BasePort1;
629 static int smc_setup(struct pcmcia_device *link)
631 struct net_device *dev = link->priv;
633 /* Check for a LAN function extension tuple */
634 if (!pcmcia_get_mac_from_cis(link, dev))
637 /* Try the third string in the Version 1 Version/ID tuple. */
638 if (link->prod_id[2]) {
639 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
645 /*====================================================================*/
647 static int osi_config(struct pcmcia_device *link)
649 struct net_device *dev = link->priv;
650 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
653 link->conf.Attributes |= CONF_ENABLE_SPKR;
654 link->conf.Status = CCSR_AUDIO_ENA;
655 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
656 link->io.NumPorts1 = 64;
657 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
658 link->io.NumPorts2 = 8;
659 link->io.IOAddrLines = 16;
661 /* Enable Hard Decode, LAN, Modem */
662 link->conf.ConfigIndex = 0x23;
664 for (i = j = 0; j < 4; j++) {
665 link->io.BasePort2 = com[j];
666 i = pcmcia_request_io(link, &link->io);
671 /* Fallback: turn off hard decode */
672 link->conf.ConfigIndex = 0x03;
673 link->io.NumPorts2 = 0;
674 i = pcmcia_request_io(link, &link->io);
676 dev->base_addr = link->io.BasePort1 + 0x10;
680 static int osi_load_firmware(struct pcmcia_device *link)
682 const struct firmware *fw;
685 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
687 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
691 /* Download the Seven of Diamonds firmware */
692 for (i = 0; i < fw->size; i++) {
693 outb(fw->data[i], link->io.BasePort1 + 2);
696 release_firmware(fw);
700 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
704 struct net_device *dev = priv;
707 if (tuple->TupleDataLen < 8)
709 if (tuple->TupleData[0] != 0x04)
711 for (i = 0; i < 6; i++)
712 dev->dev_addr[i] = tuple->TupleData[i+2];
717 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
719 struct net_device *dev = link->priv;
722 /* Read the station address from tuple 0x90, subtuple 0x04 */
723 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
726 if (((manfid == MANFID_OSITECH) &&
727 (cardid == PRODID_OSITECH_SEVEN)) ||
728 ((manfid == MANFID_PSION) &&
729 (cardid == PRODID_PSION_NET100))) {
730 rc = osi_load_firmware(link);
733 } else if (manfid == MANFID_OSITECH) {
734 /* Make sure both functions are powered up */
735 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
736 /* Now, turn on the interrupt for both card functions */
737 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
738 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
739 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
740 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
745 static int smc91c92_suspend(struct pcmcia_device *link)
747 struct net_device *dev = link->priv;
750 netif_device_detach(dev);
755 static int smc91c92_resume(struct pcmcia_device *link)
757 struct net_device *dev = link->priv;
758 struct smc_private *smc = netdev_priv(dev);
761 if ((smc->manfid == MANFID_MEGAHERTZ) &&
762 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
763 mhz_3288_power(link);
764 if (smc->manfid == MANFID_MOTOROLA)
766 if ((smc->manfid == MANFID_OSITECH) &&
767 (smc->cardid != PRODID_OSITECH_SEVEN)) {
768 /* Power up the card and enable interrupts */
769 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
770 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
772 if (((smc->manfid == MANFID_OSITECH) &&
773 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
774 ((smc->manfid == MANFID_PSION) &&
775 (smc->cardid == PRODID_PSION_NET100))) {
776 i = osi_load_firmware(link);
778 pr_err("smc91c92_cs: Failed to load firmware\n");
784 netif_device_attach(dev);
791 /*======================================================================
793 This verifies that the chip is some SMC91cXX variant, and returns
794 the revision code if successful. Otherwise, it returns -ENODEV.
796 ======================================================================*/
798 static int check_sig(struct pcmcia_device *link)
800 struct net_device *dev = link->priv;
801 unsigned int ioaddr = dev->base_addr;
806 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
807 /* Try powering up the chip */
808 outw(0, ioaddr + CONTROL);
812 /* Try setting bus width */
813 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
814 s = inb(ioaddr + CONFIG);
819 outb(s, ioaddr + CONFIG);
821 /* Check Base Address Register to make sure bus width is OK */
822 s = inw(ioaddr + BASE_ADDR);
823 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
824 ((s >> 8) != (s & 0xff))) {
826 s = inw(ioaddr + REVISION);
832 .Attributes = CONF_IO_CHANGE_WIDTH,
834 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
836 smc91c92_suspend(link);
837 pcmcia_modify_configuration(link, &mod);
838 smc91c92_resume(link);
839 return check_sig(link);
844 /*======================================================================
846 smc91c92_config() is scheduled to run after a CARD_INSERTION event
847 is received, to configure the PCMCIA socket, and to make the
848 ethernet device available to the system.
850 ======================================================================*/
852 static int smc91c92_config(struct pcmcia_device *link)
854 struct net_device *dev = link->priv;
855 struct smc_private *smc = netdev_priv(dev);
861 dev_dbg(&link->dev, "smc91c92_config\n");
863 smc->manfid = link->manf_id;
864 smc->cardid = link->card_id;
866 if ((smc->manfid == MANFID_OSITECH) &&
867 (smc->cardid != PRODID_OSITECH_SEVEN)) {
868 i = osi_config(link);
869 } else if ((smc->manfid == MANFID_MOTOROLA) ||
870 ((smc->manfid == MANFID_MEGAHERTZ) &&
871 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
872 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
873 i = mhz_mfc_config(link);
875 i = smc_config(link);
880 i = pcmcia_request_irq(link, &link->irq);
883 i = pcmcia_request_configuration(link, &link->conf);
887 if (smc->manfid == MANFID_MOTOROLA)
890 dev->irq = link->irq.AssignedIRQ;
892 if ((if_port >= 0) && (if_port <= 2))
893 dev->if_port = if_port;
895 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
897 switch (smc->manfid) {
900 i = osi_setup(link, smc->manfid, smc->cardid); break;
902 case MANFID_NEW_MEDIA:
903 i = smc_setup(link); break;
904 case 0x128: /* For broken Megahertz cards */
905 case MANFID_MEGAHERTZ:
906 i = mhz_setup(link); break;
907 case MANFID_MOTOROLA:
908 default: /* get the hw address from EEPROM */
909 i = mot_setup(link); break;
913 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
920 rev = check_sig(link);
924 case 3: name = "92"; break;
925 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
926 case 5: name = "95"; break;
927 case 7: name = "100"; break;
928 case 8: name = "100-FD"; break;
929 case 9: name = "110"; break;
932 ioaddr = dev->base_addr;
936 mir = inw(ioaddr + MEMINFO) & 0xff;
937 if (mir == 0xff) mir++;
938 /* Get scale factor for memory size */
939 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
940 mir *= 128 * (1<<((mcr >> 9) & 7));
942 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
943 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
944 if (smc->manfid == MANFID_OSITECH)
945 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
947 smc->cfg |= CFG_MII_SELECT;
951 if (smc->cfg & CFG_MII_SELECT) {
954 for (i = 0; i < 32; i++) {
955 j = mdio_read(dev, i, 1);
956 if ((j != 0) && (j != 0xffff)) break;
958 smc->mii_if.phy_id = (i < 32) ? i : -1;
963 link->dev_node = &smc->node;
964 SET_NETDEV_DEV(dev, &link->dev);
966 if (register_netdev(dev) != 0) {
967 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
968 link->dev_node = NULL;
972 strcpy(smc->node.dev_name, dev->name);
974 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
976 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
981 printk(KERN_INFO " %lu byte", mir);
983 printk(KERN_INFO " %lu kb", mir>>10);
984 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
985 "MII" : if_names[dev->if_port]);
988 if (smc->cfg & CFG_MII_SELECT) {
989 if (smc->mii_if.phy_id != -1) {
990 dev_dbg(&link->dev, " MII transceiver at index %d, status %x.\n",
991 smc->mii_if.phy_id, j);
993 printk(KERN_NOTICE " No MII transceivers found!\n");
999 unregister_netdev(dev);
1001 smc91c92_release(link);
1004 } /* smc91c92_config */
1006 /*======================================================================
1008 After a card is removed, smc91c92_release() will unregister the net
1009 device, and release the PCMCIA configuration. If the device is
1010 still open, this will be postponed until it is closed.
1012 ======================================================================*/
1014 static void smc91c92_release(struct pcmcia_device *link)
1016 dev_dbg(&link->dev, "smc91c92_release\n");
1018 struct net_device *dev = link->priv;
1019 struct smc_private *smc = netdev_priv(dev);
1022 pcmcia_disable_device(link);
1025 /*======================================================================
1027 MII interface support for SMC91cXX based cards
1028 ======================================================================*/
1030 #define MDIO_SHIFT_CLK 0x04
1031 #define MDIO_DATA_OUT 0x01
1032 #define MDIO_DIR_WRITE 0x08
1033 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1034 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1035 #define MDIO_DATA_READ 0x02
1037 static void mdio_sync(unsigned int addr)
1040 for (bits = 0; bits < 32; bits++) {
1041 outb(MDIO_DATA_WRITE1, addr);
1042 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1046 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1048 unsigned int addr = dev->base_addr + MGMT;
1049 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1053 for (i = 13; i >= 0; i--) {
1054 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1056 outb(dat | MDIO_SHIFT_CLK, addr);
1058 for (i = 19; i > 0; i--) {
1060 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1061 outb(MDIO_SHIFT_CLK, addr);
1063 return (retval>>1) & 0xffff;
1066 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1068 unsigned int addr = dev->base_addr + MGMT;
1069 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1073 for (i = 31; i >= 0; i--) {
1074 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1076 outb(dat | MDIO_SHIFT_CLK, addr);
1078 for (i = 1; i >= 0; i--) {
1080 outb(MDIO_SHIFT_CLK, addr);
1084 /*======================================================================
1086 The driver core code, most of which should be common with a
1087 non-PCMCIA implementation.
1089 ======================================================================*/
1092 static void smc_dump(struct net_device *dev)
1094 unsigned int ioaddr = dev->base_addr;
1096 save = inw(ioaddr + BANK_SELECT);
1097 for (w = 0; w < 4; w++) {
1099 printk(KERN_DEBUG "bank %d: ", w);
1100 for (i = 0; i < 14; i += 2)
1101 printk(" %04x", inw(ioaddr + i));
1104 outw(save, ioaddr + BANK_SELECT);
1108 static int smc_open(struct net_device *dev)
1110 struct smc_private *smc = netdev_priv(dev);
1111 struct pcmcia_device *link = smc->p_dev;
1113 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1114 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1119 /* Check that the PCMCIA card is still here. */
1120 if (!pcmcia_dev_present(link))
1122 /* Physical device present signature. */
1123 if (check_sig(link) < 0) {
1124 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1129 netif_start_queue(dev);
1130 smc->saved_skb = NULL;
1131 smc->packets_waiting = 0;
1134 init_timer(&smc->media);
1135 smc->media.function = &media_check;
1136 smc->media.data = (u_long) dev;
1137 smc->media.expires = jiffies + HZ;
1138 add_timer(&smc->media);
1143 /*====================================================================*/
1145 static int smc_close(struct net_device *dev)
1147 struct smc_private *smc = netdev_priv(dev);
1148 struct pcmcia_device *link = smc->p_dev;
1149 unsigned int ioaddr = dev->base_addr;
1151 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1152 dev->name, inw(ioaddr + BANK_SELECT));
1154 netif_stop_queue(dev);
1156 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1157 Don't bother to check for chip present. */
1158 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1159 outw(0, ioaddr + INTERRUPT);
1161 mask_bits(0xff00, ioaddr + RCR);
1162 mask_bits(0xff00, ioaddr + TCR);
1164 /* Put the chip into power-down mode. */
1166 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1169 del_timer_sync(&smc->media);
1174 /*======================================================================
1176 Transfer a packet to the hardware and trigger the packet send.
1177 This may be called at either from either the Tx queue code
1178 or the interrupt handler.
1180 ======================================================================*/
1182 static void smc_hardware_send_packet(struct net_device * dev)
1184 struct smc_private *smc = netdev_priv(dev);
1185 struct sk_buff *skb = smc->saved_skb;
1186 unsigned int ioaddr = dev->base_addr;
1190 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1194 /* There should be a packet slot waiting. */
1195 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1196 if (packet_no & 0x80) {
1197 /* If not, there is a hardware problem! Likely an ejected card. */
1198 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1199 " failed, status %#2.2x.\n", dev->name, packet_no);
1200 dev_kfree_skb_irq(skb);
1201 smc->saved_skb = NULL;
1202 netif_start_queue(dev);
1206 dev->stats.tx_bytes += skb->len;
1207 /* The card should use the just-allocated buffer. */
1208 outw(packet_no, ioaddr + PNR_ARR);
1209 /* point to the beginning of the packet */
1210 outw(PTR_AUTOINC , ioaddr + POINTER);
1212 /* Send the packet length (+6 for status, length and ctl byte)
1213 and the status word (set to zeros). */
1215 u_char *buf = skb->data;
1216 u_int length = skb->len; /* The chip will pad to ethernet min. */
1218 pr_debug("%s: Trying to xmit packet of length %d.\n",
1221 /* send the packet length: +6 for status word, length, and ctl */
1222 outw(0, ioaddr + DATA_1);
1223 outw(length + 6, ioaddr + DATA_1);
1224 outsw(ioaddr + DATA_1, buf, length >> 1);
1226 /* The odd last byte, if there is one, goes in the control word. */
1227 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1230 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1231 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1232 (inw(ioaddr + INTERRUPT) & 0xff00),
1233 ioaddr + INTERRUPT);
1235 /* The chip does the rest of the work. */
1236 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1238 smc->saved_skb = NULL;
1239 dev_kfree_skb_irq(skb);
1240 dev->trans_start = jiffies;
1241 netif_start_queue(dev);
1244 /*====================================================================*/
1246 static void smc_tx_timeout(struct net_device *dev)
1248 struct smc_private *smc = netdev_priv(dev);
1249 unsigned int ioaddr = dev->base_addr;
1251 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1252 "Tx_status %2.2x status %4.4x.\n",
1253 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1254 dev->stats.tx_errors++;
1256 dev->trans_start = jiffies; /* prevent tx timeout */
1257 smc->saved_skb = NULL;
1258 netif_wake_queue(dev);
1261 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1262 struct net_device *dev)
1264 struct smc_private *smc = netdev_priv(dev);
1265 unsigned int ioaddr = dev->base_addr;
1268 unsigned long flags;
1270 netif_stop_queue(dev);
1272 pr_debug("%s: smc_start_xmit(length = %d) called,"
1273 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1275 if (smc->saved_skb) {
1276 /* THIS SHOULD NEVER HAPPEN. */
1277 dev->stats.tx_aborted_errors++;
1278 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1280 return NETDEV_TX_BUSY;
1282 smc->saved_skb = skb;
1284 num_pages = skb->len >> 8;
1286 if (num_pages > 7) {
1287 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1288 dev_kfree_skb (skb);
1289 smc->saved_skb = NULL;
1290 dev->stats.tx_dropped++;
1291 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1293 /* A packet is now waiting. */
1294 smc->packets_waiting++;
1296 spin_lock_irqsave(&smc->lock, flags);
1297 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1299 /* need MC_RESET to keep the memory consistent. errata? */
1301 outw(MC_RESET, ioaddr + MMU_CMD);
1305 /* Allocate the memory; send the packet now if we win. */
1306 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1307 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1308 ir = inw(ioaddr+INTERRUPT);
1309 if (ir & IM_ALLOC_INT) {
1310 /* Acknowledge the interrupt, send the packet. */
1311 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1312 smc_hardware_send_packet(dev); /* Send the packet now.. */
1313 spin_unlock_irqrestore(&smc->lock, flags);
1314 return NETDEV_TX_OK;
1318 /* Otherwise defer until the Tx-space-allocated interrupt. */
1319 pr_debug("%s: memory allocation deferred.\n", dev->name);
1320 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1321 spin_unlock_irqrestore(&smc->lock, flags);
1323 return NETDEV_TX_OK;
1326 /*======================================================================
1328 Handle a Tx anomolous event. Entered while in Window 2.
1330 ======================================================================*/
1332 static void smc_tx_err(struct net_device * dev)
1334 struct smc_private *smc = netdev_priv(dev);
1335 unsigned int ioaddr = dev->base_addr;
1336 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1337 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1340 /* select this as the packet to read from */
1341 outw(packet_no, ioaddr + PNR_ARR);
1343 /* read the first word from this packet */
1344 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1346 tx_status = inw(ioaddr + DATA_1);
1348 dev->stats.tx_errors++;
1349 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1350 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1351 if (tx_status & TS_16COL) {
1352 dev->stats.tx_aborted_errors++;
1356 if (tx_status & TS_SUCCESS) {
1357 printk(KERN_NOTICE "%s: Successful packet caused error "
1358 "interrupt?\n", dev->name);
1360 /* re-enable transmit */
1362 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1365 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1367 /* one less packet waiting for me */
1368 smc->packets_waiting--;
1370 outw(saved_packet, ioaddr + PNR_ARR);
1373 /*====================================================================*/
1375 static void smc_eph_irq(struct net_device *dev)
1377 struct smc_private *smc = netdev_priv(dev);
1378 unsigned int ioaddr = dev->base_addr;
1379 u_short card_stats, ephs;
1382 ephs = inw(ioaddr + EPH);
1383 pr_debug("%s: Ethernet protocol handler interrupt, status"
1384 " %4.4x.\n", dev->name, ephs);
1385 /* Could be a counter roll-over warning: update stats. */
1386 card_stats = inw(ioaddr + COUNTER);
1387 /* single collisions */
1388 dev->stats.collisions += card_stats & 0xF;
1390 /* multiple collisions */
1391 dev->stats.collisions += card_stats & 0xF;
1392 #if 0 /* These are for when linux supports these statistics */
1393 card_stats >>= 4; /* deferred */
1394 card_stats >>= 4; /* excess deferred */
1396 /* If we had a transmit error we must re-enable the transmitter. */
1397 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1399 /* Clear a link error interrupt. */
1401 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1402 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1407 /*====================================================================*/
1409 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1411 struct net_device *dev = dev_id;
1412 struct smc_private *smc = netdev_priv(dev);
1413 unsigned int ioaddr;
1414 u_short saved_bank, saved_pointer, mask, status;
1415 unsigned int handled = 1;
1416 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1418 if (!netif_device_present(dev))
1421 ioaddr = dev->base_addr;
1423 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1426 spin_lock(&smc->lock);
1428 saved_bank = inw(ioaddr + BANK_SELECT);
1429 if ((saved_bank & 0xff00) != 0x3300) {
1430 /* The device does not exist -- the card could be off-line, or
1431 maybe it has been ejected. */
1432 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1433 "/ejected device.\n", dev->name, irq);
1439 saved_pointer = inw(ioaddr + POINTER);
1440 mask = inw(ioaddr + INTERRUPT) >> 8;
1441 /* clear all interrupts */
1442 outw(0, ioaddr + INTERRUPT);
1444 do { /* read the status flag, and mask it */
1445 status = inw(ioaddr + INTERRUPT) & 0xff;
1446 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1448 if ((status & mask) == 0) {
1449 if (bogus_cnt == INTR_WORK)
1453 if (status & IM_RCV_INT) {
1454 /* Got a packet(s). */
1457 if (status & IM_TX_INT) {
1459 outw(IM_TX_INT, ioaddr + INTERRUPT);
1462 if (status & IM_TX_EMPTY_INT) {
1463 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1464 mask &= ~IM_TX_EMPTY_INT;
1465 dev->stats.tx_packets += smc->packets_waiting;
1466 smc->packets_waiting = 0;
1468 if (status & IM_ALLOC_INT) {
1469 /* Clear this interrupt so it doesn't happen again */
1470 mask &= ~IM_ALLOC_INT;
1472 smc_hardware_send_packet(dev);
1474 /* enable xmit interrupts based on this */
1475 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1477 /* and let the card send more packets to me */
1478 netif_wake_queue(dev);
1480 if (status & IM_RX_OVRN_INT) {
1481 dev->stats.rx_errors++;
1482 dev->stats.rx_fifo_errors++;
1484 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1485 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1487 if (status & IM_EPH_INT)
1489 } while (--bogus_cnt);
1491 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1492 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1494 /* restore state register */
1495 outw((mask<<8), ioaddr + INTERRUPT);
1496 outw(saved_pointer, ioaddr + POINTER);
1497 SMC_SELECT_BANK(saved_bank);
1499 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1503 if ((smc->manfid == MANFID_OSITECH) &&
1504 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1505 /* Retrigger interrupt if needed */
1506 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1507 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1509 if (smc->manfid == MANFID_MOTOROLA) {
1511 cor = readb(smc->base + MOT_UART + CISREG_COR);
1512 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1513 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1514 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1515 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1516 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1518 #ifdef DOES_NOT_WORK
1519 if (smc->base != NULL) { /* Megahertz MFC's */
1520 readb(smc->base+MEGAHERTZ_ISR);
1521 readb(smc->base+MEGAHERTZ_ISR);
1524 spin_unlock(&smc->lock);
1525 return IRQ_RETVAL(handled);
1528 /*====================================================================*/
1530 static void smc_rx(struct net_device *dev)
1532 unsigned int ioaddr = dev->base_addr;
1534 int packet_length; /* Caution: not frame length, rather words
1535 to transfer from the chip. */
1537 /* Assertion: we are in Window 2. */
1539 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1540 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1545 /* Reset the read pointer, and read the status and packet length. */
1546 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1547 rx_status = inw(ioaddr + DATA_1);
1548 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1550 pr_debug("%s: Receive status %4.4x length %d.\n",
1551 dev->name, rx_status, packet_length);
1553 if (!(rx_status & RS_ERRORS)) {
1554 /* do stuff to make a new packet */
1555 struct sk_buff *skb;
1557 /* Note: packet_length adds 5 or 6 extra bytes here! */
1558 skb = dev_alloc_skb(packet_length+2);
1561 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1562 dev->stats.rx_dropped++;
1563 outw(MC_RELEASE, ioaddr + MMU_CMD);
1567 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1568 skb_reserve(skb, 2);
1569 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1570 (packet_length+1)>>1);
1571 skb->protocol = eth_type_trans(skb, dev);
1574 dev->last_rx = jiffies;
1575 dev->stats.rx_packets++;
1576 dev->stats.rx_bytes += packet_length;
1577 if (rx_status & RS_MULTICAST)
1578 dev->stats.multicast++;
1581 dev->stats.rx_errors++;
1583 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1584 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1585 dev->stats.rx_length_errors++;
1586 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1588 /* Let the MMU free the memory of this packet. */
1589 outw(MC_RELEASE, ioaddr + MMU_CMD);
1592 /*======================================================================
1594 Set the receive mode.
1596 This routine is used by both the protocol level to notify us of
1597 promiscuous/multicast mode changes, and by the open/reset code to
1598 initialize the Rx registers. We always set the multicast list and
1599 leave the receiver running.
1601 ======================================================================*/
1603 static void set_rx_mode(struct net_device *dev)
1605 unsigned int ioaddr = dev->base_addr;
1606 struct smc_private *smc = netdev_priv(dev);
1607 unsigned char multicast_table[8];
1608 unsigned long flags;
1609 u_short rx_cfg_setting;
1612 memset(multicast_table, 0, sizeof(multicast_table));
1614 if (dev->flags & IFF_PROMISC) {
1615 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1616 } else if (dev->flags & IFF_ALLMULTI)
1617 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1619 if (!netdev_mc_empty(dev)) {
1620 struct netdev_hw_addr *ha;
1622 netdev_for_each_mc_addr(ha, dev) {
1623 u_int position = ether_crc(6, ha->addr);
1624 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1627 rx_cfg_setting = RxStripCRC | RxEnable;
1630 /* Load MC table and Rx setting into the chip without interrupts. */
1631 spin_lock_irqsave(&smc->lock, flags);
1633 for (i = 0; i < 8; i++)
1634 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1636 outw(rx_cfg_setting, ioaddr + RCR);
1638 spin_unlock_irqrestore(&smc->lock, flags);
1641 /*======================================================================
1643 Senses when a card's config changes. Here, it's coax or TP.
1645 ======================================================================*/
1647 static int s9k_config(struct net_device *dev, struct ifmap *map)
1649 struct smc_private *smc = netdev_priv(dev);
1650 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1651 if (smc->cfg & CFG_MII_SELECT)
1653 else if (map->port > 2)
1655 dev->if_port = map->port;
1656 printk(KERN_INFO "%s: switched to %s port\n",
1657 dev->name, if_names[dev->if_port]);
1663 /*======================================================================
1665 Reset the chip, reloading every register that might be corrupted.
1667 ======================================================================*/
1670 Set transceiver type, perhaps to something other than what the user
1671 specified in dev->if_port.
1673 static void smc_set_xcvr(struct net_device *dev, int if_port)
1675 struct smc_private *smc = netdev_priv(dev);
1676 unsigned int ioaddr = dev->base_addr;
1679 saved_bank = inw(ioaddr + BANK_SELECT);
1682 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1683 if ((smc->manfid == MANFID_OSITECH) &&
1684 (smc->cardid != PRODID_OSITECH_SEVEN))
1685 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1686 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1688 outw(smc->cfg, ioaddr + CONFIG);
1689 if ((smc->manfid == MANFID_OSITECH) &&
1690 (smc->cardid != PRODID_OSITECH_SEVEN))
1691 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1692 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1694 SMC_SELECT_BANK(saved_bank);
1697 static void smc_reset(struct net_device *dev)
1699 unsigned int ioaddr = dev->base_addr;
1700 struct smc_private *smc = netdev_priv(dev);
1703 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1705 /* The first interaction must be a write to bring the chip out
1708 /* Reset the chip. */
1709 outw(RCR_SOFTRESET, ioaddr + RCR);
1712 /* Clear the transmit and receive configuration registers. */
1713 outw(RCR_CLEAR, ioaddr + RCR);
1714 outw(TCR_CLEAR, ioaddr + TCR);
1716 /* Set the Window 1 control, configuration and station addr registers.
1717 No point in writing the I/O base register ;-> */
1719 /* Automatically release successfully transmitted packets,
1720 Accept link errors, counter and Tx error interrupts. */
1721 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1723 smc_set_xcvr(dev, dev->if_port);
1724 if ((smc->manfid == MANFID_OSITECH) &&
1725 (smc->cardid != PRODID_OSITECH_SEVEN))
1726 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1727 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1728 ioaddr - 0x10 + OSITECH_AUI_PWR);
1730 /* Fill in the physical address. The databook is wrong about the order! */
1731 for (i = 0; i < 6; i += 2)
1732 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1733 ioaddr + ADDR0 + i);
1737 outw(MC_RESET, ioaddr + MMU_CMD);
1738 outw(0, ioaddr + INTERRUPT);
1740 /* Re-enable the chip. */
1742 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1743 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1746 if (smc->cfg & CFG_MII_SELECT) {
1750 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1752 /* Advertise 100F, 100H, 10F, 10H */
1753 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1755 /* Restart MII autonegotiation */
1756 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1757 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1760 /* Enable interrupts. */
1762 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1763 ioaddr + INTERRUPT);
1766 /*======================================================================
1768 Media selection timer routine
1770 ======================================================================*/
1772 static void media_check(u_long arg)
1774 struct net_device *dev = (struct net_device *) arg;
1775 struct smc_private *smc = netdev_priv(dev);
1776 unsigned int ioaddr = dev->base_addr;
1777 u_short i, media, saved_bank;
1779 unsigned long flags;
1781 spin_lock_irqsave(&smc->lock, flags);
1783 saved_bank = inw(ioaddr + BANK_SELECT);
1785 if (!netif_device_present(dev))
1790 /* need MC_RESET to keep the memory consistent. errata? */
1792 outw(MC_RESET, ioaddr + MMU_CMD);
1795 i = inw(ioaddr + INTERRUPT);
1797 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1799 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1801 SMC_SELECT_BANK(saved_bank);
1802 spin_unlock_irqrestore(&smc->lock, flags);
1804 /* Check for pending interrupt with watchdog flag set: with
1805 this, we can limp along even if the interrupt is blocked */
1806 if (smc->watchdog++ && ((i>>8) & i)) {
1807 if (!smc->fast_poll)
1808 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1809 local_irq_save(flags);
1810 smc_interrupt(dev->irq, dev);
1811 local_irq_restore(flags);
1812 smc->fast_poll = HZ;
1814 if (smc->fast_poll) {
1816 smc->media.expires = jiffies + HZ/100;
1817 add_timer(&smc->media);
1821 spin_lock_irqsave(&smc->lock, flags);
1823 saved_bank = inw(ioaddr + BANK_SELECT);
1825 if (smc->cfg & CFG_MII_SELECT) {
1826 if (smc->mii_if.phy_id < 0)
1830 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1831 if (!link || (link == 0xffff)) {
1832 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1833 smc->mii_if.phy_id = -1;
1838 if (link != smc->link_status) {
1839 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1840 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1841 (link) ? "found" : "lost");
1842 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1845 printk(KERN_INFO "%s: autonegotiation complete: "
1846 "%sbaseT-%cD selected\n", dev->name,
1847 ((p & 0x0180) ? "100" : "10"),
1848 (smc->duplex ? 'F' : 'H'));
1851 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1852 smc->link_status = link;
1857 /* Ignore collisions unless we've had no rx's recently */
1858 if (time_after(jiffies, dev->last_rx + HZ)) {
1859 if (smc->tx_err || (smc->media_status & EPH_16COL))
1864 if (media != smc->media_status) {
1865 if ((media & smc->media_status & 1) &&
1866 ((smc->media_status ^ media) & EPH_LINK_OK))
1867 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1868 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1869 else if ((media & smc->media_status & 2) &&
1870 ((smc->media_status ^ media) & EPH_16COL))
1871 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1872 (media & EPH_16COL ? "problem" : "ok"));
1873 if (dev->if_port == 0) {
1875 if (media & EPH_LINK_OK)
1876 printk(KERN_INFO "%s: flipped to 10baseT\n",
1879 smc_set_xcvr(dev, 2);
1881 if (media & EPH_16COL)
1882 smc_set_xcvr(dev, 1);
1884 printk(KERN_INFO "%s: flipped to 10base2\n",
1888 smc->media_status = media;
1892 smc->media.expires = jiffies + HZ;
1893 add_timer(&smc->media);
1894 SMC_SELECT_BANK(saved_bank);
1895 spin_unlock_irqrestore(&smc->lock, flags);
1898 static int smc_link_ok(struct net_device *dev)
1900 unsigned int ioaddr = dev->base_addr;
1901 struct smc_private *smc = netdev_priv(dev);
1903 if (smc->cfg & CFG_MII_SELECT) {
1904 return mii_link_ok(&smc->mii_if);
1907 return inw(ioaddr + EPH) & EPH_LINK_OK;
1911 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1914 unsigned int ioaddr = dev->base_addr;
1916 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1917 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1920 tmp = inw(ioaddr + CONFIG);
1921 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1922 ecmd->transceiver = XCVR_INTERNAL;
1923 ecmd->speed = SPEED_10;
1924 ecmd->phy_address = ioaddr + MGMT;
1927 tmp = inw(ioaddr + TCR);
1928 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1933 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1936 unsigned int ioaddr = dev->base_addr;
1938 if (ecmd->speed != SPEED_10)
1940 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1942 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1944 if (ecmd->transceiver != XCVR_INTERNAL)
1947 if (ecmd->port == PORT_AUI)
1948 smc_set_xcvr(dev, 1);
1950 smc_set_xcvr(dev, 0);
1953 tmp = inw(ioaddr + TCR);
1954 if (ecmd->duplex == DUPLEX_FULL)
1958 outw(tmp, ioaddr + TCR);
1963 static int check_if_running(struct net_device *dev)
1965 if (!netif_running(dev))
1970 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1972 strcpy(info->driver, DRV_NAME);
1973 strcpy(info->version, DRV_VERSION);
1976 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1978 struct smc_private *smc = netdev_priv(dev);
1979 unsigned int ioaddr = dev->base_addr;
1980 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1982 unsigned long flags;
1984 spin_lock_irqsave(&smc->lock, flags);
1986 if (smc->cfg & CFG_MII_SELECT)
1987 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1989 ret = smc_netdev_get_ecmd(dev, ecmd);
1990 SMC_SELECT_BANK(saved_bank);
1991 spin_unlock_irqrestore(&smc->lock, flags);
1995 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1997 struct smc_private *smc = netdev_priv(dev);
1998 unsigned int ioaddr = dev->base_addr;
1999 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2001 unsigned long flags;
2003 spin_lock_irqsave(&smc->lock, flags);
2005 if (smc->cfg & CFG_MII_SELECT)
2006 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2008 ret = smc_netdev_set_ecmd(dev, ecmd);
2009 SMC_SELECT_BANK(saved_bank);
2010 spin_unlock_irqrestore(&smc->lock, flags);
2014 static u32 smc_get_link(struct net_device *dev)
2016 struct smc_private *smc = netdev_priv(dev);
2017 unsigned int ioaddr = dev->base_addr;
2018 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2020 unsigned long flags;
2022 spin_lock_irqsave(&smc->lock, flags);
2024 ret = smc_link_ok(dev);
2025 SMC_SELECT_BANK(saved_bank);
2026 spin_unlock_irqrestore(&smc->lock, flags);
2030 static int smc_nway_reset(struct net_device *dev)
2032 struct smc_private *smc = netdev_priv(dev);
2033 if (smc->cfg & CFG_MII_SELECT) {
2034 unsigned int ioaddr = dev->base_addr;
2035 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2039 res = mii_nway_restart(&smc->mii_if);
2040 SMC_SELECT_BANK(saved_bank);
2047 static const struct ethtool_ops ethtool_ops = {
2048 .begin = check_if_running,
2049 .get_drvinfo = smc_get_drvinfo,
2050 .get_settings = smc_get_settings,
2051 .set_settings = smc_set_settings,
2052 .get_link = smc_get_link,
2053 .nway_reset = smc_nway_reset,
2056 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2058 struct smc_private *smc = netdev_priv(dev);
2059 struct mii_ioctl_data *mii = if_mii(rq);
2062 unsigned int ioaddr = dev->base_addr;
2063 unsigned long flags;
2065 if (!netif_running(dev))
2068 spin_lock_irqsave(&smc->lock, flags);
2069 saved_bank = inw(ioaddr + BANK_SELECT);
2071 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2072 SMC_SELECT_BANK(saved_bank);
2073 spin_unlock_irqrestore(&smc->lock, flags);
2077 static struct pcmcia_device_id smc91c92_ids[] = {
2078 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2079 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2080 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2081 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2082 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2083 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2084 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2085 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2086 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2087 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2088 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2089 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2090 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2091 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2092 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2093 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2094 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2095 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2096 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2097 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2098 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2099 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2100 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2101 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2102 /* These conflict with other cards! */
2103 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2104 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2107 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2109 static struct pcmcia_driver smc91c92_cs_driver = {
2110 .owner = THIS_MODULE,
2112 .name = "smc91c92_cs",
2114 .probe = smc91c92_probe,
2115 .remove = smc91c92_detach,
2116 .id_table = smc91c92_ids,
2117 .suspend = smc91c92_suspend,
2118 .resume = smc91c92_resume,
2121 static int __init init_smc91c92_cs(void)
2123 return pcmcia_register_driver(&smc91c92_cs_driver);
2126 static void __exit exit_smc91c92_cs(void)
2128 pcmcia_unregister_driver(&smc91c92_cs_driver);
2131 module_init(init_smc91c92_cs);
2132 module_exit(exit_smc91c92_cs);