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);
1245 /*====================================================================*/
1247 static void smc_tx_timeout(struct net_device *dev)
1249 struct smc_private *smc = netdev_priv(dev);
1250 unsigned int ioaddr = dev->base_addr;
1252 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1253 "Tx_status %2.2x status %4.4x.\n",
1254 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1255 dev->stats.tx_errors++;
1257 dev->trans_start = jiffies;
1258 smc->saved_skb = NULL;
1259 netif_wake_queue(dev);
1262 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1263 struct net_device *dev)
1265 struct smc_private *smc = netdev_priv(dev);
1266 unsigned int ioaddr = dev->base_addr;
1269 unsigned long flags;
1271 netif_stop_queue(dev);
1273 pr_debug("%s: smc_start_xmit(length = %d) called,"
1274 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1276 if (smc->saved_skb) {
1277 /* THIS SHOULD NEVER HAPPEN. */
1278 dev->stats.tx_aborted_errors++;
1279 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1281 return NETDEV_TX_BUSY;
1283 smc->saved_skb = skb;
1285 num_pages = skb->len >> 8;
1287 if (num_pages > 7) {
1288 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1289 dev_kfree_skb (skb);
1290 smc->saved_skb = NULL;
1291 dev->stats.tx_dropped++;
1292 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1294 /* A packet is now waiting. */
1295 smc->packets_waiting++;
1297 spin_lock_irqsave(&smc->lock, flags);
1298 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1300 /* need MC_RESET to keep the memory consistent. errata? */
1302 outw(MC_RESET, ioaddr + MMU_CMD);
1306 /* Allocate the memory; send the packet now if we win. */
1307 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1308 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1309 ir = inw(ioaddr+INTERRUPT);
1310 if (ir & IM_ALLOC_INT) {
1311 /* Acknowledge the interrupt, send the packet. */
1312 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1313 smc_hardware_send_packet(dev); /* Send the packet now.. */
1314 spin_unlock_irqrestore(&smc->lock, flags);
1315 return NETDEV_TX_OK;
1319 /* Otherwise defer until the Tx-space-allocated interrupt. */
1320 pr_debug("%s: memory allocation deferred.\n", dev->name);
1321 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1322 spin_unlock_irqrestore(&smc->lock, flags);
1324 return NETDEV_TX_OK;
1327 /*======================================================================
1329 Handle a Tx anomolous event. Entered while in Window 2.
1331 ======================================================================*/
1333 static void smc_tx_err(struct net_device * dev)
1335 struct smc_private *smc = netdev_priv(dev);
1336 unsigned int ioaddr = dev->base_addr;
1337 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1338 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1341 /* select this as the packet to read from */
1342 outw(packet_no, ioaddr + PNR_ARR);
1344 /* read the first word from this packet */
1345 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1347 tx_status = inw(ioaddr + DATA_1);
1349 dev->stats.tx_errors++;
1350 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1351 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1352 if (tx_status & TS_16COL) {
1353 dev->stats.tx_aborted_errors++;
1357 if (tx_status & TS_SUCCESS) {
1358 printk(KERN_NOTICE "%s: Successful packet caused error "
1359 "interrupt?\n", dev->name);
1361 /* re-enable transmit */
1363 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1366 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1368 /* one less packet waiting for me */
1369 smc->packets_waiting--;
1371 outw(saved_packet, ioaddr + PNR_ARR);
1375 /*====================================================================*/
1377 static void smc_eph_irq(struct net_device *dev)
1379 struct smc_private *smc = netdev_priv(dev);
1380 unsigned int ioaddr = dev->base_addr;
1381 u_short card_stats, ephs;
1384 ephs = inw(ioaddr + EPH);
1385 pr_debug("%s: Ethernet protocol handler interrupt, status"
1386 " %4.4x.\n", dev->name, ephs);
1387 /* Could be a counter roll-over warning: update stats. */
1388 card_stats = inw(ioaddr + COUNTER);
1389 /* single collisions */
1390 dev->stats.collisions += card_stats & 0xF;
1392 /* multiple collisions */
1393 dev->stats.collisions += card_stats & 0xF;
1394 #if 0 /* These are for when linux supports these statistics */
1395 card_stats >>= 4; /* deferred */
1396 card_stats >>= 4; /* excess deferred */
1398 /* If we had a transmit error we must re-enable the transmitter. */
1399 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1401 /* Clear a link error interrupt. */
1403 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1404 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1409 /*====================================================================*/
1411 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1413 struct net_device *dev = dev_id;
1414 struct smc_private *smc = netdev_priv(dev);
1415 unsigned int ioaddr;
1416 u_short saved_bank, saved_pointer, mask, status;
1417 unsigned int handled = 1;
1418 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1420 if (!netif_device_present(dev))
1423 ioaddr = dev->base_addr;
1425 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1428 spin_lock(&smc->lock);
1430 saved_bank = inw(ioaddr + BANK_SELECT);
1431 if ((saved_bank & 0xff00) != 0x3300) {
1432 /* The device does not exist -- the card could be off-line, or
1433 maybe it has been ejected. */
1434 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1435 "/ejected device.\n", dev->name, irq);
1441 saved_pointer = inw(ioaddr + POINTER);
1442 mask = inw(ioaddr + INTERRUPT) >> 8;
1443 /* clear all interrupts */
1444 outw(0, ioaddr + INTERRUPT);
1446 do { /* read the status flag, and mask it */
1447 status = inw(ioaddr + INTERRUPT) & 0xff;
1448 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1450 if ((status & mask) == 0) {
1451 if (bogus_cnt == INTR_WORK)
1455 if (status & IM_RCV_INT) {
1456 /* Got a packet(s). */
1459 if (status & IM_TX_INT) {
1461 outw(IM_TX_INT, ioaddr + INTERRUPT);
1464 if (status & IM_TX_EMPTY_INT) {
1465 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1466 mask &= ~IM_TX_EMPTY_INT;
1467 dev->stats.tx_packets += smc->packets_waiting;
1468 smc->packets_waiting = 0;
1470 if (status & IM_ALLOC_INT) {
1471 /* Clear this interrupt so it doesn't happen again */
1472 mask &= ~IM_ALLOC_INT;
1474 smc_hardware_send_packet(dev);
1476 /* enable xmit interrupts based on this */
1477 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1479 /* and let the card send more packets to me */
1480 netif_wake_queue(dev);
1482 if (status & IM_RX_OVRN_INT) {
1483 dev->stats.rx_errors++;
1484 dev->stats.rx_fifo_errors++;
1486 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1487 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1489 if (status & IM_EPH_INT)
1491 } while (--bogus_cnt);
1493 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1494 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1496 /* restore state register */
1497 outw((mask<<8), ioaddr + INTERRUPT);
1498 outw(saved_pointer, ioaddr + POINTER);
1499 SMC_SELECT_BANK(saved_bank);
1501 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1505 if ((smc->manfid == MANFID_OSITECH) &&
1506 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1507 /* Retrigger interrupt if needed */
1508 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1509 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1511 if (smc->manfid == MANFID_MOTOROLA) {
1513 cor = readb(smc->base + MOT_UART + CISREG_COR);
1514 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1515 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1516 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1517 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1518 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1520 #ifdef DOES_NOT_WORK
1521 if (smc->base != NULL) { /* Megahertz MFC's */
1522 readb(smc->base+MEGAHERTZ_ISR);
1523 readb(smc->base+MEGAHERTZ_ISR);
1526 spin_unlock(&smc->lock);
1527 return IRQ_RETVAL(handled);
1530 /*====================================================================*/
1532 static void smc_rx(struct net_device *dev)
1534 unsigned int ioaddr = dev->base_addr;
1536 int packet_length; /* Caution: not frame length, rather words
1537 to transfer from the chip. */
1539 /* Assertion: we are in Window 2. */
1541 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1542 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1547 /* Reset the read pointer, and read the status and packet length. */
1548 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1549 rx_status = inw(ioaddr + DATA_1);
1550 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1552 pr_debug("%s: Receive status %4.4x length %d.\n",
1553 dev->name, rx_status, packet_length);
1555 if (!(rx_status & RS_ERRORS)) {
1556 /* do stuff to make a new packet */
1557 struct sk_buff *skb;
1559 /* Note: packet_length adds 5 or 6 extra bytes here! */
1560 skb = dev_alloc_skb(packet_length+2);
1563 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1564 dev->stats.rx_dropped++;
1565 outw(MC_RELEASE, ioaddr + MMU_CMD);
1569 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1570 skb_reserve(skb, 2);
1571 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1572 (packet_length+1)>>1);
1573 skb->protocol = eth_type_trans(skb, dev);
1576 dev->last_rx = jiffies;
1577 dev->stats.rx_packets++;
1578 dev->stats.rx_bytes += packet_length;
1579 if (rx_status & RS_MULTICAST)
1580 dev->stats.multicast++;
1583 dev->stats.rx_errors++;
1585 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1586 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1587 dev->stats.rx_length_errors++;
1588 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1590 /* Let the MMU free the memory of this packet. */
1591 outw(MC_RELEASE, ioaddr + MMU_CMD);
1596 /*======================================================================
1598 Set the receive mode.
1600 This routine is used by both the protocol level to notify us of
1601 promiscuous/multicast mode changes, and by the open/reset code to
1602 initialize the Rx registers. We always set the multicast list and
1603 leave the receiver running.
1605 ======================================================================*/
1607 static void set_rx_mode(struct net_device *dev)
1609 unsigned int ioaddr = dev->base_addr;
1610 struct smc_private *smc = netdev_priv(dev);
1611 unsigned char multicast_table[8];
1612 unsigned long flags;
1613 u_short rx_cfg_setting;
1616 memset(multicast_table, 0, sizeof(multicast_table));
1618 if (dev->flags & IFF_PROMISC) {
1619 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1620 } else if (dev->flags & IFF_ALLMULTI)
1621 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1623 if (!netdev_mc_empty(dev)) {
1624 struct dev_mc_list *mc_addr;
1626 netdev_for_each_mc_addr(mc_addr, dev) {
1627 u_int position = ether_crc(6, mc_addr->dmi_addr);
1628 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1631 rx_cfg_setting = RxStripCRC | RxEnable;
1634 /* Load MC table and Rx setting into the chip without interrupts. */
1635 spin_lock_irqsave(&smc->lock, flags);
1637 for (i = 0; i < 8; i++)
1638 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1640 outw(rx_cfg_setting, ioaddr + RCR);
1642 spin_unlock_irqrestore(&smc->lock, flags);
1647 /*======================================================================
1649 Senses when a card's config changes. Here, it's coax or TP.
1651 ======================================================================*/
1653 static int s9k_config(struct net_device *dev, struct ifmap *map)
1655 struct smc_private *smc = netdev_priv(dev);
1656 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1657 if (smc->cfg & CFG_MII_SELECT)
1659 else if (map->port > 2)
1661 dev->if_port = map->port;
1662 printk(KERN_INFO "%s: switched to %s port\n",
1663 dev->name, if_names[dev->if_port]);
1669 /*======================================================================
1671 Reset the chip, reloading every register that might be corrupted.
1673 ======================================================================*/
1676 Set transceiver type, perhaps to something other than what the user
1677 specified in dev->if_port.
1679 static void smc_set_xcvr(struct net_device *dev, int if_port)
1681 struct smc_private *smc = netdev_priv(dev);
1682 unsigned int ioaddr = dev->base_addr;
1685 saved_bank = inw(ioaddr + BANK_SELECT);
1688 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1689 if ((smc->manfid == MANFID_OSITECH) &&
1690 (smc->cardid != PRODID_OSITECH_SEVEN))
1691 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1692 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1694 outw(smc->cfg, ioaddr + CONFIG);
1695 if ((smc->manfid == MANFID_OSITECH) &&
1696 (smc->cardid != PRODID_OSITECH_SEVEN))
1697 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1698 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1700 SMC_SELECT_BANK(saved_bank);
1703 static void smc_reset(struct net_device *dev)
1705 unsigned int ioaddr = dev->base_addr;
1706 struct smc_private *smc = netdev_priv(dev);
1709 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1711 /* The first interaction must be a write to bring the chip out
1714 /* Reset the chip. */
1715 outw(RCR_SOFTRESET, ioaddr + RCR);
1718 /* Clear the transmit and receive configuration registers. */
1719 outw(RCR_CLEAR, ioaddr + RCR);
1720 outw(TCR_CLEAR, ioaddr + TCR);
1722 /* Set the Window 1 control, configuration and station addr registers.
1723 No point in writing the I/O base register ;-> */
1725 /* Automatically release successfully transmitted packets,
1726 Accept link errors, counter and Tx error interrupts. */
1727 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1729 smc_set_xcvr(dev, dev->if_port);
1730 if ((smc->manfid == MANFID_OSITECH) &&
1731 (smc->cardid != PRODID_OSITECH_SEVEN))
1732 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1733 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1734 ioaddr - 0x10 + OSITECH_AUI_PWR);
1736 /* Fill in the physical address. The databook is wrong about the order! */
1737 for (i = 0; i < 6; i += 2)
1738 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1739 ioaddr + ADDR0 + i);
1743 outw(MC_RESET, ioaddr + MMU_CMD);
1744 outw(0, ioaddr + INTERRUPT);
1746 /* Re-enable the chip. */
1748 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1749 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1752 if (smc->cfg & CFG_MII_SELECT) {
1756 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1758 /* Advertise 100F, 100H, 10F, 10H */
1759 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1761 /* Restart MII autonegotiation */
1762 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1763 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1766 /* Enable interrupts. */
1768 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1769 ioaddr + INTERRUPT);
1772 /*======================================================================
1774 Media selection timer routine
1776 ======================================================================*/
1778 static void media_check(u_long arg)
1780 struct net_device *dev = (struct net_device *) arg;
1781 struct smc_private *smc = netdev_priv(dev);
1782 unsigned int ioaddr = dev->base_addr;
1783 u_short i, media, saved_bank;
1785 unsigned long flags;
1787 spin_lock_irqsave(&smc->lock, flags);
1789 saved_bank = inw(ioaddr + BANK_SELECT);
1791 if (!netif_device_present(dev))
1796 /* need MC_RESET to keep the memory consistent. errata? */
1798 outw(MC_RESET, ioaddr + MMU_CMD);
1801 i = inw(ioaddr + INTERRUPT);
1803 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1805 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1807 /* Check for pending interrupt with watchdog flag set: with
1808 this, we can limp along even if the interrupt is blocked */
1809 if (smc->watchdog++ && ((i>>8) & i)) {
1810 if (!smc->fast_poll)
1811 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1812 smc_interrupt(dev->irq, dev);
1813 smc->fast_poll = HZ;
1815 if (smc->fast_poll) {
1817 smc->media.expires = jiffies + HZ/100;
1818 add_timer(&smc->media);
1819 SMC_SELECT_BANK(saved_bank);
1820 spin_unlock_irqrestore(&smc->lock, flags);
1824 if (smc->cfg & CFG_MII_SELECT) {
1825 if (smc->mii_if.phy_id < 0)
1829 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1830 if (!link || (link == 0xffff)) {
1831 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1832 smc->mii_if.phy_id = -1;
1837 if (link != smc->link_status) {
1838 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1839 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1840 (link) ? "found" : "lost");
1841 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1844 printk(KERN_INFO "%s: autonegotiation complete: "
1845 "%sbaseT-%cD selected\n", dev->name,
1846 ((p & 0x0180) ? "100" : "10"),
1847 (smc->duplex ? 'F' : 'H'));
1850 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1851 smc->link_status = link;
1856 /* Ignore collisions unless we've had no rx's recently */
1857 if (time_after(jiffies, dev->last_rx + HZ)) {
1858 if (smc->tx_err || (smc->media_status & EPH_16COL))
1863 if (media != smc->media_status) {
1864 if ((media & smc->media_status & 1) &&
1865 ((smc->media_status ^ media) & EPH_LINK_OK))
1866 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1867 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1868 else if ((media & smc->media_status & 2) &&
1869 ((smc->media_status ^ media) & EPH_16COL))
1870 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1871 (media & EPH_16COL ? "problem" : "ok"));
1872 if (dev->if_port == 0) {
1874 if (media & EPH_LINK_OK)
1875 printk(KERN_INFO "%s: flipped to 10baseT\n",
1878 smc_set_xcvr(dev, 2);
1880 if (media & EPH_16COL)
1881 smc_set_xcvr(dev, 1);
1883 printk(KERN_INFO "%s: flipped to 10base2\n",
1887 smc->media_status = media;
1891 smc->media.expires = jiffies + HZ;
1892 add_timer(&smc->media);
1893 SMC_SELECT_BANK(saved_bank);
1894 spin_unlock_irqrestore(&smc->lock, flags);
1897 static int smc_link_ok(struct net_device *dev)
1899 unsigned int ioaddr = dev->base_addr;
1900 struct smc_private *smc = netdev_priv(dev);
1902 if (smc->cfg & CFG_MII_SELECT) {
1903 return mii_link_ok(&smc->mii_if);
1906 return inw(ioaddr + EPH) & EPH_LINK_OK;
1910 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1913 unsigned int ioaddr = dev->base_addr;
1915 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1916 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1919 tmp = inw(ioaddr + CONFIG);
1920 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1921 ecmd->transceiver = XCVR_INTERNAL;
1922 ecmd->speed = SPEED_10;
1923 ecmd->phy_address = ioaddr + MGMT;
1926 tmp = inw(ioaddr + TCR);
1927 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1932 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1935 unsigned int ioaddr = dev->base_addr;
1937 if (ecmd->speed != SPEED_10)
1939 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1941 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1943 if (ecmd->transceiver != XCVR_INTERNAL)
1946 if (ecmd->port == PORT_AUI)
1947 smc_set_xcvr(dev, 1);
1949 smc_set_xcvr(dev, 0);
1952 tmp = inw(ioaddr + TCR);
1953 if (ecmd->duplex == DUPLEX_FULL)
1957 outw(tmp, ioaddr + TCR);
1962 static int check_if_running(struct net_device *dev)
1964 if (!netif_running(dev))
1969 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1971 strcpy(info->driver, DRV_NAME);
1972 strcpy(info->version, DRV_VERSION);
1975 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1977 struct smc_private *smc = netdev_priv(dev);
1978 unsigned int ioaddr = dev->base_addr;
1979 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1982 spin_lock_irq(&smc->lock);
1984 if (smc->cfg & CFG_MII_SELECT)
1985 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1987 ret = smc_netdev_get_ecmd(dev, ecmd);
1988 SMC_SELECT_BANK(saved_bank);
1989 spin_unlock_irq(&smc->lock);
1993 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1995 struct smc_private *smc = netdev_priv(dev);
1996 unsigned int ioaddr = dev->base_addr;
1997 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2000 spin_lock_irq(&smc->lock);
2002 if (smc->cfg & CFG_MII_SELECT)
2003 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2005 ret = smc_netdev_set_ecmd(dev, ecmd);
2006 SMC_SELECT_BANK(saved_bank);
2007 spin_unlock_irq(&smc->lock);
2011 static u32 smc_get_link(struct net_device *dev)
2013 struct smc_private *smc = netdev_priv(dev);
2014 unsigned int ioaddr = dev->base_addr;
2015 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2018 spin_lock_irq(&smc->lock);
2020 ret = smc_link_ok(dev);
2021 SMC_SELECT_BANK(saved_bank);
2022 spin_unlock_irq(&smc->lock);
2026 static int smc_nway_reset(struct net_device *dev)
2028 struct smc_private *smc = netdev_priv(dev);
2029 if (smc->cfg & CFG_MII_SELECT) {
2030 unsigned int ioaddr = dev->base_addr;
2031 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2035 res = mii_nway_restart(&smc->mii_if);
2036 SMC_SELECT_BANK(saved_bank);
2043 static const struct ethtool_ops ethtool_ops = {
2044 .begin = check_if_running,
2045 .get_drvinfo = smc_get_drvinfo,
2046 .get_settings = smc_get_settings,
2047 .set_settings = smc_set_settings,
2048 .get_link = smc_get_link,
2049 .nway_reset = smc_nway_reset,
2052 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2054 struct smc_private *smc = netdev_priv(dev);
2055 struct mii_ioctl_data *mii = if_mii(rq);
2058 unsigned int ioaddr = dev->base_addr;
2060 if (!netif_running(dev))
2063 spin_lock_irq(&smc->lock);
2064 saved_bank = inw(ioaddr + BANK_SELECT);
2066 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2067 SMC_SELECT_BANK(saved_bank);
2068 spin_unlock_irq(&smc->lock);
2072 static struct pcmcia_device_id smc91c92_ids[] = {
2073 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2074 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2075 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2076 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2077 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2078 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2079 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2080 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2081 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2082 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2083 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2084 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2085 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2086 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2087 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2088 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2089 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2090 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2091 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2092 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2093 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2094 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2095 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2096 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2097 /* These conflict with other cards! */
2098 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2099 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2102 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2104 static struct pcmcia_driver smc91c92_cs_driver = {
2105 .owner = THIS_MODULE,
2107 .name = "smc91c92_cs",
2109 .probe = smc91c92_probe,
2110 .remove = smc91c92_detach,
2111 .id_table = smc91c92_ids,
2112 .suspend = smc91c92_suspend,
2113 .resume = smc91c92_resume,
2116 static int __init init_smc91c92_cs(void)
2118 return pcmcia_register_driver(&smc91c92_cs_driver);
2121 static void __exit exit_smc91c92_cs(void)
2123 pcmcia_unregister_driver(&smc91c92_cs_driver);
2126 module_init(init_smc91c92_cs);
2127 module_exit(exit_smc91c92_cs);