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;
106 struct sk_buff *saved_skb;
110 struct timer_list media;
111 int watchdog, tx_err;
112 u_short media_status;
115 struct mii_if_info mii_if;
120 /* Special definitions for Megahertz multifunction cards */
121 #define MEGAHERTZ_ISR 0x0380
123 /* Special function registers for Motorola Mariner */
124 #define MOT_LAN 0x0000
125 #define MOT_UART 0x0020
126 #define MOT_EEPROM 0x20
129 (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
131 /* Special function registers for Ositech cards */
132 #define OSITECH_AUI_CTL 0x0c
133 #define OSITECH_PWRDOWN 0x0d
134 #define OSITECH_RESET 0x0e
135 #define OSITECH_ISR 0x0f
136 #define OSITECH_AUI_PWR 0x0c
137 #define OSITECH_RESET_ISR 0x0e
139 #define OSI_AUI_PWR 0x40
140 #define OSI_LAN_PWRDOWN 0x02
141 #define OSI_MODEM_PWRDOWN 0x01
142 #define OSI_LAN_RESET 0x02
143 #define OSI_MODEM_RESET 0x01
145 /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
146 #define BANK_SELECT 14 /* Window select register. */
147 #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
149 /* Bank 0 registers. */
150 #define TCR 0 /* transmit control register */
151 #define TCR_CLEAR 0 /* do NOTHING */
152 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
153 #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
154 #define TCR_MONCSN 0x0400 /* Monitor Carrier. */
155 #define TCR_FDUPLX 0x0800 /* Full duplex mode. */
156 #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
158 #define EPH 2 /* Ethernet Protocol Handler report. */
159 #define EPH_TX_SUC 0x0001
160 #define EPH_SNGLCOL 0x0002
161 #define EPH_MULCOL 0x0004
162 #define EPH_LTX_MULT 0x0008
163 #define EPH_16COL 0x0010
164 #define EPH_SQET 0x0020
165 #define EPH_LTX_BRD 0x0040
166 #define EPH_TX_DEFR 0x0080
167 #define EPH_LAT_COL 0x0200
168 #define EPH_LOST_CAR 0x0400
169 #define EPH_EXC_DEF 0x0800
170 #define EPH_CTR_ROL 0x1000
171 #define EPH_RX_OVRN 0x2000
172 #define EPH_LINK_OK 0x4000
173 #define EPH_TX_UNRN 0x8000
174 #define MEMINFO 8 /* Memory Information Register */
175 #define MEMCFG 10 /* Memory Configuration Register */
177 /* Bank 1 registers. */
179 #define CFG_MII_SELECT 0x8000 /* 91C100 only */
180 #define CFG_NO_WAIT 0x1000
181 #define CFG_FULL_STEP 0x0400
182 #define CFG_SET_SQLCH 0x0200
183 #define CFG_AUI_SELECT 0x0100
184 #define CFG_16BIT 0x0080
185 #define CFG_DIS_LINK 0x0040
186 #define CFG_STATIC 0x0030
187 #define CFG_IRQ_SEL_1 0x0004
188 #define CFG_IRQ_SEL_0 0x0002
193 #define CTL_STORE 0x0001
194 #define CTL_RELOAD 0x0002
195 #define CTL_EE_SELECT 0x0004
196 #define CTL_TE_ENABLE 0x0020
197 #define CTL_CR_ENABLE 0x0040
198 #define CTL_LE_ENABLE 0x0080
199 #define CTL_AUTO_RELEASE 0x0800
200 #define CTL_POWERDOWN 0x2000
202 /* Bank 2 registers. */
204 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
205 #define MC_RESET 0x40
206 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
207 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
208 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
211 #define FP_RXEMPTY 0x8000
213 #define PTR_AUTO_INC 0x0040
214 #define PTR_READ 0x2000
215 #define PTR_AUTOINC 0x4000
216 #define PTR_RCV 0x8000
219 #define IM_RCV_INT 0x1
220 #define IM_TX_INT 0x2
221 #define IM_TX_EMPTY_INT 0x4
222 #define IM_ALLOC_INT 0x8
223 #define IM_RX_OVRN_INT 0x10
224 #define IM_EPH_INT 0x20
227 enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
228 RxEnable = 0x0100, RxStripCRC = 0x0200};
229 #define RCR_SOFTRESET 0x8000 /* resets the chip */
230 #define RCR_STRIP_CRC 0x200 /* strips CRC */
231 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
232 #define RCR_ALMUL 0x4 /* receive all multicast packets */
233 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
235 /* the normal settings for the RCR register : */
236 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
237 #define RCR_CLEAR 0x0 /* set it to a base state */
240 /* BANK 3 -- not the same values as in smc9194! */
246 #define REVISION 0x0a
248 /* Transmit status bits. */
249 #define TS_SUCCESS 0x0001
250 #define TS_16COL 0x0010
251 #define TS_LATCOL 0x0200
252 #define TS_LOSTCAR 0x0400
254 /* Receive status bits. */
255 #define RS_ALGNERR 0x8000
256 #define RS_BADCRC 0x2000
257 #define RS_ODDFRAME 0x1000
258 #define RS_TOOLONG 0x0800
259 #define RS_TOOSHORT 0x0400
260 #define RS_MULTICAST 0x0001
261 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
263 #define set_bits(v, p) outw(inw(p)|(v), (p))
264 #define mask_bits(v, p) outw(inw(p)&(v), (p))
266 /*====================================================================*/
268 static void smc91c92_detach(struct pcmcia_device *p_dev);
269 static int smc91c92_config(struct pcmcia_device *link);
270 static void smc91c92_release(struct pcmcia_device *link);
272 static int smc_open(struct net_device *dev);
273 static int smc_close(struct net_device *dev);
274 static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
275 static void smc_tx_timeout(struct net_device *dev);
276 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
277 struct net_device *dev);
278 static irqreturn_t smc_interrupt(int irq, void *dev_id);
279 static void smc_rx(struct net_device *dev);
280 static void set_rx_mode(struct net_device *dev);
281 static int s9k_config(struct net_device *dev, struct ifmap *map);
282 static void smc_set_xcvr(struct net_device *dev, int if_port);
283 static void smc_reset(struct net_device *dev);
284 static void media_check(u_long arg);
285 static void mdio_sync(unsigned int addr);
286 static int mdio_read(struct net_device *dev, int phy_id, int loc);
287 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
288 static int smc_link_ok(struct net_device *dev);
289 static const struct ethtool_ops ethtool_ops;
291 static const struct net_device_ops smc_netdev_ops = {
292 .ndo_open = smc_open,
293 .ndo_stop = smc_close,
294 .ndo_start_xmit = smc_start_xmit,
295 .ndo_tx_timeout = smc_tx_timeout,
296 .ndo_set_config = s9k_config,
297 .ndo_set_multicast_list = set_rx_mode,
298 .ndo_do_ioctl = &smc_ioctl,
299 .ndo_change_mtu = eth_change_mtu,
300 .ndo_set_mac_address = eth_mac_addr,
301 .ndo_validate_addr = eth_validate_addr,
304 /*======================================================================
306 smc91c92_attach() creates an "instance" of the driver, allocating
307 local data structures for one device. The device is registered
310 ======================================================================*/
312 static int smc91c92_probe(struct pcmcia_device *link)
314 struct smc_private *smc;
315 struct net_device *dev;
317 dev_dbg(&link->dev, "smc91c92_attach()\n");
319 /* Create new ethernet device */
320 dev = alloc_etherdev(sizeof(struct smc_private));
323 smc = netdev_priv(dev);
326 spin_lock_init(&smc->lock);
327 link->io.NumPorts1 = 16;
328 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
329 link->io.IOAddrLines = 4;
330 link->conf.Attributes = CONF_ENABLE_IRQ;
331 link->conf.IntType = INT_MEMORY_AND_IO;
333 /* The SMC91c92-specific entries in the device structure. */
334 dev->netdev_ops = &smc_netdev_ops;
335 SET_ETHTOOL_OPS(dev, ðtool_ops);
336 dev->watchdog_timeo = TX_TIMEOUT;
338 smc->mii_if.dev = dev;
339 smc->mii_if.mdio_read = mdio_read;
340 smc->mii_if.mdio_write = mdio_write;
341 smc->mii_if.phy_id_mask = 0x1f;
342 smc->mii_if.reg_num_mask = 0x1f;
344 return smc91c92_config(link);
345 } /* smc91c92_attach */
347 /*======================================================================
349 This deletes a driver "instance". The device is de-registered
350 with Card Services. If it has been released, all local data
351 structures are freed. Otherwise, the structures will be freed
352 when the device is released.
354 ======================================================================*/
356 static void smc91c92_detach(struct pcmcia_device *link)
358 struct net_device *dev = link->priv;
360 dev_dbg(&link->dev, "smc91c92_detach\n");
362 unregister_netdev(dev);
364 smc91c92_release(link);
367 } /* smc91c92_detach */
369 /*====================================================================*/
371 static int cvt_ascii_address(struct net_device *dev, char *s)
377 for (i = 0; i < 6; i++) {
379 for (j = 0; j < 2; j++) {
382 da += ((c >= '0') && (c <= '9')) ?
383 (c - '0') : ((c & 0x0f) + 9);
385 dev->dev_addr[i] = da;
390 /*====================================================================
392 Configuration stuff for Megahertz cards
394 mhz_3288_power() is used to power up a 3288's ethernet chip.
395 mhz_mfc_config() handles socket setup for multifunction (1144
396 and 3288) cards. mhz_setup() gets a card's hardware ethernet
399 ======================================================================*/
401 static int mhz_3288_power(struct pcmcia_device *link)
403 struct net_device *dev = link->priv;
404 struct smc_private *smc = netdev_priv(dev);
407 /* Read the ISR twice... */
408 readb(smc->base+MEGAHERTZ_ISR);
410 readb(smc->base+MEGAHERTZ_ISR);
415 /* Now read and write the COR... */
416 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
418 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
423 static int mhz_mfc_config_check(struct pcmcia_device *p_dev,
424 cistpl_cftable_entry_t *cf,
425 cistpl_cftable_entry_t *dflt,
430 p_dev->io.BasePort2 = cf->io.win[0].base;
431 for (k = 0; k < 0x400; k += 0x10) {
434 p_dev->io.BasePort1 = k ^ 0x300;
435 if (!pcmcia_request_io(p_dev, &p_dev->io))
441 static int mhz_mfc_config(struct pcmcia_device *link)
443 struct net_device *dev = link->priv;
444 struct smc_private *smc = netdev_priv(dev);
449 link->conf.Attributes |= CONF_ENABLE_SPKR;
450 link->conf.Status = CCSR_AUDIO_ENA;
451 link->io.IOAddrLines = 16;
452 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
453 link->io.NumPorts2 = 8;
455 /* The Megahertz combo cards have modem-like CIS entries, so
456 we have to explicitly try a bunch of port combinations. */
457 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
460 dev->base_addr = link->io.BasePort1;
462 /* Allocate a memory window, for accessing the ISR */
463 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
464 req.Base = req.Size = 0;
466 i = pcmcia_request_window(link, &req, &link->win);
470 smc->base = ioremap(req.Base, req.Size);
471 mem.CardOffset = mem.Page = 0;
472 if (smc->manfid == MANFID_MOTOROLA)
473 mem.CardOffset = link->conf.ConfigBase;
474 i = pcmcia_map_mem_page(link, link->win, &mem);
477 (smc->manfid == MANFID_MEGAHERTZ) &&
478 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
479 mhz_3288_power(link);
484 static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
488 struct net_device *dev = priv;
492 if (pcmcia_parse_tuple(tuple, &parse))
495 buf = parse.version_1.str + parse.version_1.ofs[3];
497 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
503 static int mhz_setup(struct pcmcia_device *link)
505 struct net_device *dev = link->priv;
510 /* Read the station address from the CIS. It is stored as the last
511 (fourth) string in the Version 1 Version/ID tuple. */
512 if ((link->prod_id[3]) &&
513 (cvt_ascii_address(dev, link->prod_id[3]) == 0))
516 /* Workarounds for broken cards start here. */
517 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
518 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
521 /* Another possibility: for the EM3288, in a special tuple */
523 len = pcmcia_get_tuple(link, 0x81, &buf);
524 if (buf && len >= 13) {
526 if (cvt_ascii_address(dev, buf) == 0)
534 /*======================================================================
536 Configuration stuff for the Motorola Mariner
538 mot_config() writes directly to the Mariner configuration
539 registers because the CIS is just bogus.
541 ======================================================================*/
543 static void mot_config(struct pcmcia_device *link)
545 struct net_device *dev = link->priv;
546 struct smc_private *smc = netdev_priv(dev);
547 unsigned int ioaddr = dev->base_addr;
548 unsigned int iouart = link->io.BasePort2;
550 /* Set UART base address and force map with COR bit 1 */
551 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
552 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
553 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
555 /* Set SMC base address and force map with COR bit 1 */
556 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
557 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
558 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
560 /* Wait for things to settle down */
564 static int mot_setup(struct pcmcia_device *link)
566 struct net_device *dev = link->priv;
567 unsigned int ioaddr = dev->base_addr;
571 /* Read Ethernet address from Serial EEPROM */
573 for (i = 0; i < 3; i++) {
575 outw(MOT_EEPROM + i, ioaddr + POINTER);
577 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
579 for (loop = wait = 0; loop < 200; loop++) {
581 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
582 if (wait == 0) break;
588 addr = inw(ioaddr + GENERAL);
589 dev->dev_addr[2*i] = addr & 0xff;
590 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
596 /*====================================================================*/
598 static int smc_configcheck(struct pcmcia_device *p_dev,
599 cistpl_cftable_entry_t *cf,
600 cistpl_cftable_entry_t *dflt,
604 p_dev->io.BasePort1 = cf->io.win[0].base;
605 p_dev->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
606 return pcmcia_request_io(p_dev, &p_dev->io);
609 static int smc_config(struct pcmcia_device *link)
611 struct net_device *dev = link->priv;
614 link->io.NumPorts1 = 16;
615 i = pcmcia_loop_config(link, smc_configcheck, NULL);
617 dev->base_addr = link->io.BasePort1;
623 static int smc_setup(struct pcmcia_device *link)
625 struct net_device *dev = link->priv;
627 /* Check for a LAN function extension tuple */
628 if (!pcmcia_get_mac_from_cis(link, dev))
631 /* Try the third string in the Version 1 Version/ID tuple. */
632 if (link->prod_id[2]) {
633 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
639 /*====================================================================*/
641 static int osi_config(struct pcmcia_device *link)
643 struct net_device *dev = link->priv;
644 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
647 link->conf.Attributes |= CONF_ENABLE_SPKR;
648 link->conf.Status = CCSR_AUDIO_ENA;
649 link->io.NumPorts1 = 64;
650 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
651 link->io.NumPorts2 = 8;
652 link->io.IOAddrLines = 16;
654 /* Enable Hard Decode, LAN, Modem */
655 link->conf.ConfigIndex = 0x23;
657 for (i = j = 0; j < 4; j++) {
658 link->io.BasePort2 = com[j];
659 i = pcmcia_request_io(link, &link->io);
664 /* Fallback: turn off hard decode */
665 link->conf.ConfigIndex = 0x03;
666 link->io.NumPorts2 = 0;
667 i = pcmcia_request_io(link, &link->io);
669 dev->base_addr = link->io.BasePort1 + 0x10;
673 static int osi_load_firmware(struct pcmcia_device *link)
675 const struct firmware *fw;
678 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
680 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
684 /* Download the Seven of Diamonds firmware */
685 for (i = 0; i < fw->size; i++) {
686 outb(fw->data[i], link->io.BasePort1 + 2);
689 release_firmware(fw);
693 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
697 struct net_device *dev = priv;
700 if (tuple->TupleDataLen < 8)
702 if (tuple->TupleData[0] != 0x04)
704 for (i = 0; i < 6; i++)
705 dev->dev_addr[i] = tuple->TupleData[i+2];
710 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
712 struct net_device *dev = link->priv;
715 /* Read the station address from tuple 0x90, subtuple 0x04 */
716 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
719 if (((manfid == MANFID_OSITECH) &&
720 (cardid == PRODID_OSITECH_SEVEN)) ||
721 ((manfid == MANFID_PSION) &&
722 (cardid == PRODID_PSION_NET100))) {
723 rc = osi_load_firmware(link);
726 } else if (manfid == MANFID_OSITECH) {
727 /* Make sure both functions are powered up */
728 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
729 /* Now, turn on the interrupt for both card functions */
730 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
731 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
732 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
733 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
738 static int smc91c92_suspend(struct pcmcia_device *link)
740 struct net_device *dev = link->priv;
743 netif_device_detach(dev);
748 static int smc91c92_resume(struct pcmcia_device *link)
750 struct net_device *dev = link->priv;
751 struct smc_private *smc = netdev_priv(dev);
754 if ((smc->manfid == MANFID_MEGAHERTZ) &&
755 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
756 mhz_3288_power(link);
757 if (smc->manfid == MANFID_MOTOROLA)
759 if ((smc->manfid == MANFID_OSITECH) &&
760 (smc->cardid != PRODID_OSITECH_SEVEN)) {
761 /* Power up the card and enable interrupts */
762 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
763 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
765 if (((smc->manfid == MANFID_OSITECH) &&
766 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
767 ((smc->manfid == MANFID_PSION) &&
768 (smc->cardid == PRODID_PSION_NET100))) {
769 i = osi_load_firmware(link);
771 pr_err("smc91c92_cs: Failed to load firmware\n");
777 netif_device_attach(dev);
784 /*======================================================================
786 This verifies that the chip is some SMC91cXX variant, and returns
787 the revision code if successful. Otherwise, it returns -ENODEV.
789 ======================================================================*/
791 static int check_sig(struct pcmcia_device *link)
793 struct net_device *dev = link->priv;
794 unsigned int ioaddr = dev->base_addr;
799 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
800 /* Try powering up the chip */
801 outw(0, ioaddr + CONTROL);
805 /* Try setting bus width */
806 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
807 s = inb(ioaddr + CONFIG);
812 outb(s, ioaddr + CONFIG);
814 /* Check Base Address Register to make sure bus width is OK */
815 s = inw(ioaddr + BASE_ADDR);
816 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
817 ((s >> 8) != (s & 0xff))) {
819 s = inw(ioaddr + REVISION);
825 .Attributes = CONF_IO_CHANGE_WIDTH,
827 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
829 smc91c92_suspend(link);
830 pcmcia_modify_configuration(link, &mod);
831 smc91c92_resume(link);
832 return check_sig(link);
837 /*======================================================================
839 smc91c92_config() is scheduled to run after a CARD_INSERTION event
840 is received, to configure the PCMCIA socket, and to make the
841 ethernet device available to the system.
843 ======================================================================*/
845 static int smc91c92_config(struct pcmcia_device *link)
847 struct net_device *dev = link->priv;
848 struct smc_private *smc = netdev_priv(dev);
854 dev_dbg(&link->dev, "smc91c92_config\n");
856 smc->manfid = link->manf_id;
857 smc->cardid = link->card_id;
859 if ((smc->manfid == MANFID_OSITECH) &&
860 (smc->cardid != PRODID_OSITECH_SEVEN)) {
861 i = osi_config(link);
862 } else if ((smc->manfid == MANFID_MOTOROLA) ||
863 ((smc->manfid == MANFID_MEGAHERTZ) &&
864 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
865 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
866 i = mhz_mfc_config(link);
868 i = smc_config(link);
873 i = pcmcia_request_irq(link, smc_interrupt);
876 i = pcmcia_request_configuration(link, &link->conf);
880 if (smc->manfid == MANFID_MOTOROLA)
883 dev->irq = link->irq;
885 if ((if_port >= 0) && (if_port <= 2))
886 dev->if_port = if_port;
888 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
890 switch (smc->manfid) {
893 i = osi_setup(link, smc->manfid, smc->cardid); break;
895 case MANFID_NEW_MEDIA:
896 i = smc_setup(link); break;
897 case 0x128: /* For broken Megahertz cards */
898 case MANFID_MEGAHERTZ:
899 i = mhz_setup(link); break;
900 case MANFID_MOTOROLA:
901 default: /* get the hw address from EEPROM */
902 i = mot_setup(link); break;
906 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
913 rev = check_sig(link);
917 case 3: name = "92"; break;
918 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
919 case 5: name = "95"; break;
920 case 7: name = "100"; break;
921 case 8: name = "100-FD"; break;
922 case 9: name = "110"; break;
925 ioaddr = dev->base_addr;
929 mir = inw(ioaddr + MEMINFO) & 0xff;
930 if (mir == 0xff) mir++;
931 /* Get scale factor for memory size */
932 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
933 mir *= 128 * (1<<((mcr >> 9) & 7));
935 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
936 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
937 if (smc->manfid == MANFID_OSITECH)
938 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
940 smc->cfg |= CFG_MII_SELECT;
944 if (smc->cfg & CFG_MII_SELECT) {
947 for (i = 0; i < 32; i++) {
948 j = mdio_read(dev, i, 1);
949 if ((j != 0) && (j != 0xffff)) break;
951 smc->mii_if.phy_id = (i < 32) ? i : -1;
956 SET_NETDEV_DEV(dev, &link->dev);
958 if (register_netdev(dev) != 0) {
959 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
963 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
965 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
970 printk(KERN_INFO " %lu byte", mir);
972 printk(KERN_INFO " %lu kb", mir>>10);
973 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
974 "MII" : if_names[dev->if_port]);
977 if (smc->cfg & CFG_MII_SELECT) {
978 if (smc->mii_if.phy_id != -1) {
979 dev_dbg(&link->dev, " MII transceiver at index %d, status %x.\n",
980 smc->mii_if.phy_id, j);
982 printk(KERN_NOTICE " No MII transceivers found!\n");
988 unregister_netdev(dev);
990 smc91c92_release(link);
993 } /* smc91c92_config */
995 /*======================================================================
997 After a card is removed, smc91c92_release() will unregister the net
998 device, and release the PCMCIA configuration. If the device is
999 still open, this will be postponed until it is closed.
1001 ======================================================================*/
1003 static void smc91c92_release(struct pcmcia_device *link)
1005 dev_dbg(&link->dev, "smc91c92_release\n");
1007 struct net_device *dev = link->priv;
1008 struct smc_private *smc = netdev_priv(dev);
1011 pcmcia_disable_device(link);
1014 /*======================================================================
1016 MII interface support for SMC91cXX based cards
1017 ======================================================================*/
1019 #define MDIO_SHIFT_CLK 0x04
1020 #define MDIO_DATA_OUT 0x01
1021 #define MDIO_DIR_WRITE 0x08
1022 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1023 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1024 #define MDIO_DATA_READ 0x02
1026 static void mdio_sync(unsigned int addr)
1029 for (bits = 0; bits < 32; bits++) {
1030 outb(MDIO_DATA_WRITE1, addr);
1031 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1035 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1037 unsigned int addr = dev->base_addr + MGMT;
1038 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1042 for (i = 13; i >= 0; i--) {
1043 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1045 outb(dat | MDIO_SHIFT_CLK, addr);
1047 for (i = 19; i > 0; i--) {
1049 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1050 outb(MDIO_SHIFT_CLK, addr);
1052 return (retval>>1) & 0xffff;
1055 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1057 unsigned int addr = dev->base_addr + MGMT;
1058 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1062 for (i = 31; i >= 0; i--) {
1063 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1065 outb(dat | MDIO_SHIFT_CLK, addr);
1067 for (i = 1; i >= 0; i--) {
1069 outb(MDIO_SHIFT_CLK, addr);
1073 /*======================================================================
1075 The driver core code, most of which should be common with a
1076 non-PCMCIA implementation.
1078 ======================================================================*/
1081 static void smc_dump(struct net_device *dev)
1083 unsigned int ioaddr = dev->base_addr;
1085 save = inw(ioaddr + BANK_SELECT);
1086 for (w = 0; w < 4; w++) {
1088 printk(KERN_DEBUG "bank %d: ", w);
1089 for (i = 0; i < 14; i += 2)
1090 printk(" %04x", inw(ioaddr + i));
1093 outw(save, ioaddr + BANK_SELECT);
1097 static int smc_open(struct net_device *dev)
1099 struct smc_private *smc = netdev_priv(dev);
1100 struct pcmcia_device *link = smc->p_dev;
1102 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1103 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1108 /* Check that the PCMCIA card is still here. */
1109 if (!pcmcia_dev_present(link))
1111 /* Physical device present signature. */
1112 if (check_sig(link) < 0) {
1113 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1118 netif_start_queue(dev);
1119 smc->saved_skb = NULL;
1120 smc->packets_waiting = 0;
1123 init_timer(&smc->media);
1124 smc->media.function = &media_check;
1125 smc->media.data = (u_long) dev;
1126 smc->media.expires = jiffies + HZ;
1127 add_timer(&smc->media);
1132 /*====================================================================*/
1134 static int smc_close(struct net_device *dev)
1136 struct smc_private *smc = netdev_priv(dev);
1137 struct pcmcia_device *link = smc->p_dev;
1138 unsigned int ioaddr = dev->base_addr;
1140 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1141 dev->name, inw(ioaddr + BANK_SELECT));
1143 netif_stop_queue(dev);
1145 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1146 Don't bother to check for chip present. */
1147 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1148 outw(0, ioaddr + INTERRUPT);
1150 mask_bits(0xff00, ioaddr + RCR);
1151 mask_bits(0xff00, ioaddr + TCR);
1153 /* Put the chip into power-down mode. */
1155 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1158 del_timer_sync(&smc->media);
1163 /*======================================================================
1165 Transfer a packet to the hardware and trigger the packet send.
1166 This may be called at either from either the Tx queue code
1167 or the interrupt handler.
1169 ======================================================================*/
1171 static void smc_hardware_send_packet(struct net_device * dev)
1173 struct smc_private *smc = netdev_priv(dev);
1174 struct sk_buff *skb = smc->saved_skb;
1175 unsigned int ioaddr = dev->base_addr;
1179 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1183 /* There should be a packet slot waiting. */
1184 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1185 if (packet_no & 0x80) {
1186 /* If not, there is a hardware problem! Likely an ejected card. */
1187 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1188 " failed, status %#2.2x.\n", dev->name, packet_no);
1189 dev_kfree_skb_irq(skb);
1190 smc->saved_skb = NULL;
1191 netif_start_queue(dev);
1195 dev->stats.tx_bytes += skb->len;
1196 /* The card should use the just-allocated buffer. */
1197 outw(packet_no, ioaddr + PNR_ARR);
1198 /* point to the beginning of the packet */
1199 outw(PTR_AUTOINC , ioaddr + POINTER);
1201 /* Send the packet length (+6 for status, length and ctl byte)
1202 and the status word (set to zeros). */
1204 u_char *buf = skb->data;
1205 u_int length = skb->len; /* The chip will pad to ethernet min. */
1207 pr_debug("%s: Trying to xmit packet of length %d.\n",
1210 /* send the packet length: +6 for status word, length, and ctl */
1211 outw(0, ioaddr + DATA_1);
1212 outw(length + 6, ioaddr + DATA_1);
1213 outsw(ioaddr + DATA_1, buf, length >> 1);
1215 /* The odd last byte, if there is one, goes in the control word. */
1216 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1219 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1220 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1221 (inw(ioaddr + INTERRUPT) & 0xff00),
1222 ioaddr + INTERRUPT);
1224 /* The chip does the rest of the work. */
1225 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1227 smc->saved_skb = NULL;
1228 dev_kfree_skb_irq(skb);
1229 dev->trans_start = jiffies;
1230 netif_start_queue(dev);
1234 /*====================================================================*/
1236 static void smc_tx_timeout(struct net_device *dev)
1238 struct smc_private *smc = netdev_priv(dev);
1239 unsigned int ioaddr = dev->base_addr;
1241 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1242 "Tx_status %2.2x status %4.4x.\n",
1243 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1244 dev->stats.tx_errors++;
1246 dev->trans_start = jiffies;
1247 smc->saved_skb = NULL;
1248 netif_wake_queue(dev);
1251 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1252 struct net_device *dev)
1254 struct smc_private *smc = netdev_priv(dev);
1255 unsigned int ioaddr = dev->base_addr;
1258 unsigned long flags;
1260 netif_stop_queue(dev);
1262 pr_debug("%s: smc_start_xmit(length = %d) called,"
1263 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1265 if (smc->saved_skb) {
1266 /* THIS SHOULD NEVER HAPPEN. */
1267 dev->stats.tx_aborted_errors++;
1268 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1270 return NETDEV_TX_BUSY;
1272 smc->saved_skb = skb;
1274 num_pages = skb->len >> 8;
1276 if (num_pages > 7) {
1277 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1278 dev_kfree_skb (skb);
1279 smc->saved_skb = NULL;
1280 dev->stats.tx_dropped++;
1281 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1283 /* A packet is now waiting. */
1284 smc->packets_waiting++;
1286 spin_lock_irqsave(&smc->lock, flags);
1287 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1289 /* need MC_RESET to keep the memory consistent. errata? */
1291 outw(MC_RESET, ioaddr + MMU_CMD);
1295 /* Allocate the memory; send the packet now if we win. */
1296 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1297 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1298 ir = inw(ioaddr+INTERRUPT);
1299 if (ir & IM_ALLOC_INT) {
1300 /* Acknowledge the interrupt, send the packet. */
1301 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1302 smc_hardware_send_packet(dev); /* Send the packet now.. */
1303 spin_unlock_irqrestore(&smc->lock, flags);
1304 return NETDEV_TX_OK;
1308 /* Otherwise defer until the Tx-space-allocated interrupt. */
1309 pr_debug("%s: memory allocation deferred.\n", dev->name);
1310 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1311 spin_unlock_irqrestore(&smc->lock, flags);
1313 return NETDEV_TX_OK;
1316 /*======================================================================
1318 Handle a Tx anomolous event. Entered while in Window 2.
1320 ======================================================================*/
1322 static void smc_tx_err(struct net_device * dev)
1324 struct smc_private *smc = netdev_priv(dev);
1325 unsigned int ioaddr = dev->base_addr;
1326 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1327 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1330 /* select this as the packet to read from */
1331 outw(packet_no, ioaddr + PNR_ARR);
1333 /* read the first word from this packet */
1334 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1336 tx_status = inw(ioaddr + DATA_1);
1338 dev->stats.tx_errors++;
1339 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1340 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1341 if (tx_status & TS_16COL) {
1342 dev->stats.tx_aborted_errors++;
1346 if (tx_status & TS_SUCCESS) {
1347 printk(KERN_NOTICE "%s: Successful packet caused error "
1348 "interrupt?\n", dev->name);
1350 /* re-enable transmit */
1352 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1355 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1357 /* one less packet waiting for me */
1358 smc->packets_waiting--;
1360 outw(saved_packet, ioaddr + PNR_ARR);
1364 /*====================================================================*/
1366 static void smc_eph_irq(struct net_device *dev)
1368 struct smc_private *smc = netdev_priv(dev);
1369 unsigned int ioaddr = dev->base_addr;
1370 u_short card_stats, ephs;
1373 ephs = inw(ioaddr + EPH);
1374 pr_debug("%s: Ethernet protocol handler interrupt, status"
1375 " %4.4x.\n", dev->name, ephs);
1376 /* Could be a counter roll-over warning: update stats. */
1377 card_stats = inw(ioaddr + COUNTER);
1378 /* single collisions */
1379 dev->stats.collisions += card_stats & 0xF;
1381 /* multiple collisions */
1382 dev->stats.collisions += card_stats & 0xF;
1383 #if 0 /* These are for when linux supports these statistics */
1384 card_stats >>= 4; /* deferred */
1385 card_stats >>= 4; /* excess deferred */
1387 /* If we had a transmit error we must re-enable the transmitter. */
1388 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1390 /* Clear a link error interrupt. */
1392 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1393 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1398 /*====================================================================*/
1400 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1402 struct net_device *dev = dev_id;
1403 struct smc_private *smc = netdev_priv(dev);
1404 unsigned int ioaddr;
1405 u_short saved_bank, saved_pointer, mask, status;
1406 unsigned int handled = 1;
1407 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1409 if (!netif_device_present(dev))
1412 ioaddr = dev->base_addr;
1414 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1417 spin_lock(&smc->lock);
1419 saved_bank = inw(ioaddr + BANK_SELECT);
1420 if ((saved_bank & 0xff00) != 0x3300) {
1421 /* The device does not exist -- the card could be off-line, or
1422 maybe it has been ejected. */
1423 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1424 "/ejected device.\n", dev->name, irq);
1430 saved_pointer = inw(ioaddr + POINTER);
1431 mask = inw(ioaddr + INTERRUPT) >> 8;
1432 /* clear all interrupts */
1433 outw(0, ioaddr + INTERRUPT);
1435 do { /* read the status flag, and mask it */
1436 status = inw(ioaddr + INTERRUPT) & 0xff;
1437 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1439 if ((status & mask) == 0) {
1440 if (bogus_cnt == INTR_WORK)
1444 if (status & IM_RCV_INT) {
1445 /* Got a packet(s). */
1448 if (status & IM_TX_INT) {
1450 outw(IM_TX_INT, ioaddr + INTERRUPT);
1453 if (status & IM_TX_EMPTY_INT) {
1454 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1455 mask &= ~IM_TX_EMPTY_INT;
1456 dev->stats.tx_packets += smc->packets_waiting;
1457 smc->packets_waiting = 0;
1459 if (status & IM_ALLOC_INT) {
1460 /* Clear this interrupt so it doesn't happen again */
1461 mask &= ~IM_ALLOC_INT;
1463 smc_hardware_send_packet(dev);
1465 /* enable xmit interrupts based on this */
1466 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1468 /* and let the card send more packets to me */
1469 netif_wake_queue(dev);
1471 if (status & IM_RX_OVRN_INT) {
1472 dev->stats.rx_errors++;
1473 dev->stats.rx_fifo_errors++;
1475 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1476 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1478 if (status & IM_EPH_INT)
1480 } while (--bogus_cnt);
1482 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1483 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1485 /* restore state register */
1486 outw((mask<<8), ioaddr + INTERRUPT);
1487 outw(saved_pointer, ioaddr + POINTER);
1488 SMC_SELECT_BANK(saved_bank);
1490 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1494 if ((smc->manfid == MANFID_OSITECH) &&
1495 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1496 /* Retrigger interrupt if needed */
1497 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1498 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1500 if (smc->manfid == MANFID_MOTOROLA) {
1502 cor = readb(smc->base + MOT_UART + CISREG_COR);
1503 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1504 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1505 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1506 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1507 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1509 #ifdef DOES_NOT_WORK
1510 if (smc->base != NULL) { /* Megahertz MFC's */
1511 readb(smc->base+MEGAHERTZ_ISR);
1512 readb(smc->base+MEGAHERTZ_ISR);
1515 spin_unlock(&smc->lock);
1516 return IRQ_RETVAL(handled);
1519 /*====================================================================*/
1521 static void smc_rx(struct net_device *dev)
1523 unsigned int ioaddr = dev->base_addr;
1525 int packet_length; /* Caution: not frame length, rather words
1526 to transfer from the chip. */
1528 /* Assertion: we are in Window 2. */
1530 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1531 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1536 /* Reset the read pointer, and read the status and packet length. */
1537 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1538 rx_status = inw(ioaddr + DATA_1);
1539 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1541 pr_debug("%s: Receive status %4.4x length %d.\n",
1542 dev->name, rx_status, packet_length);
1544 if (!(rx_status & RS_ERRORS)) {
1545 /* do stuff to make a new packet */
1546 struct sk_buff *skb;
1548 /* Note: packet_length adds 5 or 6 extra bytes here! */
1549 skb = dev_alloc_skb(packet_length+2);
1552 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1553 dev->stats.rx_dropped++;
1554 outw(MC_RELEASE, ioaddr + MMU_CMD);
1558 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1559 skb_reserve(skb, 2);
1560 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1561 (packet_length+1)>>1);
1562 skb->protocol = eth_type_trans(skb, dev);
1565 dev->last_rx = jiffies;
1566 dev->stats.rx_packets++;
1567 dev->stats.rx_bytes += packet_length;
1568 if (rx_status & RS_MULTICAST)
1569 dev->stats.multicast++;
1572 dev->stats.rx_errors++;
1574 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1575 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1576 dev->stats.rx_length_errors++;
1577 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1579 /* Let the MMU free the memory of this packet. */
1580 outw(MC_RELEASE, ioaddr + MMU_CMD);
1585 /*======================================================================
1587 Set the receive mode.
1589 This routine is used by both the protocol level to notify us of
1590 promiscuous/multicast mode changes, and by the open/reset code to
1591 initialize the Rx registers. We always set the multicast list and
1592 leave the receiver running.
1594 ======================================================================*/
1596 static void set_rx_mode(struct net_device *dev)
1598 unsigned int ioaddr = dev->base_addr;
1599 struct smc_private *smc = netdev_priv(dev);
1600 unsigned char multicast_table[8];
1601 unsigned long flags;
1602 u_short rx_cfg_setting;
1605 memset(multicast_table, 0, sizeof(multicast_table));
1607 if (dev->flags & IFF_PROMISC) {
1608 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1609 } else if (dev->flags & IFF_ALLMULTI)
1610 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1612 if (!netdev_mc_empty(dev)) {
1613 struct dev_mc_list *mc_addr;
1615 netdev_for_each_mc_addr(mc_addr, dev) {
1616 u_int position = ether_crc(6, mc_addr->dmi_addr);
1617 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1620 rx_cfg_setting = RxStripCRC | RxEnable;
1623 /* Load MC table and Rx setting into the chip without interrupts. */
1624 spin_lock_irqsave(&smc->lock, flags);
1626 for (i = 0; i < 8; i++)
1627 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1629 outw(rx_cfg_setting, ioaddr + RCR);
1631 spin_unlock_irqrestore(&smc->lock, flags);
1636 /*======================================================================
1638 Senses when a card's config changes. Here, it's coax or TP.
1640 ======================================================================*/
1642 static int s9k_config(struct net_device *dev, struct ifmap *map)
1644 struct smc_private *smc = netdev_priv(dev);
1645 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1646 if (smc->cfg & CFG_MII_SELECT)
1648 else if (map->port > 2)
1650 dev->if_port = map->port;
1651 printk(KERN_INFO "%s: switched to %s port\n",
1652 dev->name, if_names[dev->if_port]);
1658 /*======================================================================
1660 Reset the chip, reloading every register that might be corrupted.
1662 ======================================================================*/
1665 Set transceiver type, perhaps to something other than what the user
1666 specified in dev->if_port.
1668 static void smc_set_xcvr(struct net_device *dev, int if_port)
1670 struct smc_private *smc = netdev_priv(dev);
1671 unsigned int ioaddr = dev->base_addr;
1674 saved_bank = inw(ioaddr + BANK_SELECT);
1677 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1678 if ((smc->manfid == MANFID_OSITECH) &&
1679 (smc->cardid != PRODID_OSITECH_SEVEN))
1680 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1681 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1683 outw(smc->cfg, ioaddr + CONFIG);
1684 if ((smc->manfid == MANFID_OSITECH) &&
1685 (smc->cardid != PRODID_OSITECH_SEVEN))
1686 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1687 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1689 SMC_SELECT_BANK(saved_bank);
1692 static void smc_reset(struct net_device *dev)
1694 unsigned int ioaddr = dev->base_addr;
1695 struct smc_private *smc = netdev_priv(dev);
1698 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1700 /* The first interaction must be a write to bring the chip out
1703 /* Reset the chip. */
1704 outw(RCR_SOFTRESET, ioaddr + RCR);
1707 /* Clear the transmit and receive configuration registers. */
1708 outw(RCR_CLEAR, ioaddr + RCR);
1709 outw(TCR_CLEAR, ioaddr + TCR);
1711 /* Set the Window 1 control, configuration and station addr registers.
1712 No point in writing the I/O base register ;-> */
1714 /* Automatically release successfully transmitted packets,
1715 Accept link errors, counter and Tx error interrupts. */
1716 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1718 smc_set_xcvr(dev, dev->if_port);
1719 if ((smc->manfid == MANFID_OSITECH) &&
1720 (smc->cardid != PRODID_OSITECH_SEVEN))
1721 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1722 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1723 ioaddr - 0x10 + OSITECH_AUI_PWR);
1725 /* Fill in the physical address. The databook is wrong about the order! */
1726 for (i = 0; i < 6; i += 2)
1727 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1728 ioaddr + ADDR0 + i);
1732 outw(MC_RESET, ioaddr + MMU_CMD);
1733 outw(0, ioaddr + INTERRUPT);
1735 /* Re-enable the chip. */
1737 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1738 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1741 if (smc->cfg & CFG_MII_SELECT) {
1745 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1747 /* Advertise 100F, 100H, 10F, 10H */
1748 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1750 /* Restart MII autonegotiation */
1751 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1752 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1755 /* Enable interrupts. */
1757 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1758 ioaddr + INTERRUPT);
1761 /*======================================================================
1763 Media selection timer routine
1765 ======================================================================*/
1767 static void media_check(u_long arg)
1769 struct net_device *dev = (struct net_device *) arg;
1770 struct smc_private *smc = netdev_priv(dev);
1771 unsigned int ioaddr = dev->base_addr;
1772 u_short i, media, saved_bank;
1774 unsigned long flags;
1776 spin_lock_irqsave(&smc->lock, flags);
1778 saved_bank = inw(ioaddr + BANK_SELECT);
1780 if (!netif_device_present(dev))
1785 /* need MC_RESET to keep the memory consistent. errata? */
1787 outw(MC_RESET, ioaddr + MMU_CMD);
1790 i = inw(ioaddr + INTERRUPT);
1792 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1794 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1796 SMC_SELECT_BANK(saved_bank);
1797 spin_unlock_irqrestore(&smc->lock, flags);
1799 /* Check for pending interrupt with watchdog flag set: with
1800 this, we can limp along even if the interrupt is blocked */
1801 if (smc->watchdog++ && ((i>>8) & i)) {
1802 if (!smc->fast_poll)
1803 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1804 local_irq_save(flags);
1805 smc_interrupt(dev->irq, dev);
1806 local_irq_restore(flags);
1807 smc->fast_poll = HZ;
1809 if (smc->fast_poll) {
1811 smc->media.expires = jiffies + HZ/100;
1812 add_timer(&smc->media);
1816 spin_lock_irqsave(&smc->lock, flags);
1818 saved_bank = inw(ioaddr + BANK_SELECT);
1820 if (smc->cfg & CFG_MII_SELECT) {
1821 if (smc->mii_if.phy_id < 0)
1825 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1826 if (!link || (link == 0xffff)) {
1827 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1828 smc->mii_if.phy_id = -1;
1833 if (link != smc->link_status) {
1834 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1835 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1836 (link) ? "found" : "lost");
1837 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1840 printk(KERN_INFO "%s: autonegotiation complete: "
1841 "%sbaseT-%cD selected\n", dev->name,
1842 ((p & 0x0180) ? "100" : "10"),
1843 (smc->duplex ? 'F' : 'H'));
1846 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1847 smc->link_status = link;
1852 /* Ignore collisions unless we've had no rx's recently */
1853 if (time_after(jiffies, dev->last_rx + HZ)) {
1854 if (smc->tx_err || (smc->media_status & EPH_16COL))
1859 if (media != smc->media_status) {
1860 if ((media & smc->media_status & 1) &&
1861 ((smc->media_status ^ media) & EPH_LINK_OK))
1862 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1863 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1864 else if ((media & smc->media_status & 2) &&
1865 ((smc->media_status ^ media) & EPH_16COL))
1866 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1867 (media & EPH_16COL ? "problem" : "ok"));
1868 if (dev->if_port == 0) {
1870 if (media & EPH_LINK_OK)
1871 printk(KERN_INFO "%s: flipped to 10baseT\n",
1874 smc_set_xcvr(dev, 2);
1876 if (media & EPH_16COL)
1877 smc_set_xcvr(dev, 1);
1879 printk(KERN_INFO "%s: flipped to 10base2\n",
1883 smc->media_status = media;
1887 smc->media.expires = jiffies + HZ;
1888 add_timer(&smc->media);
1889 SMC_SELECT_BANK(saved_bank);
1890 spin_unlock_irqrestore(&smc->lock, flags);
1893 static int smc_link_ok(struct net_device *dev)
1895 unsigned int ioaddr = dev->base_addr;
1896 struct smc_private *smc = netdev_priv(dev);
1898 if (smc->cfg & CFG_MII_SELECT) {
1899 return mii_link_ok(&smc->mii_if);
1902 return inw(ioaddr + EPH) & EPH_LINK_OK;
1906 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1909 unsigned int ioaddr = dev->base_addr;
1911 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1912 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1915 tmp = inw(ioaddr + CONFIG);
1916 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1917 ecmd->transceiver = XCVR_INTERNAL;
1918 ecmd->speed = SPEED_10;
1919 ecmd->phy_address = ioaddr + MGMT;
1922 tmp = inw(ioaddr + TCR);
1923 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1928 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1931 unsigned int ioaddr = dev->base_addr;
1933 if (ecmd->speed != SPEED_10)
1935 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1937 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1939 if (ecmd->transceiver != XCVR_INTERNAL)
1942 if (ecmd->port == PORT_AUI)
1943 smc_set_xcvr(dev, 1);
1945 smc_set_xcvr(dev, 0);
1948 tmp = inw(ioaddr + TCR);
1949 if (ecmd->duplex == DUPLEX_FULL)
1953 outw(tmp, ioaddr + TCR);
1958 static int check_if_running(struct net_device *dev)
1960 if (!netif_running(dev))
1965 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1967 strcpy(info->driver, DRV_NAME);
1968 strcpy(info->version, DRV_VERSION);
1971 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1973 struct smc_private *smc = netdev_priv(dev);
1974 unsigned int ioaddr = dev->base_addr;
1975 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1977 unsigned long flags;
1979 spin_lock_irqsave(&smc->lock, flags);
1981 if (smc->cfg & CFG_MII_SELECT)
1982 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1984 ret = smc_netdev_get_ecmd(dev, ecmd);
1985 SMC_SELECT_BANK(saved_bank);
1986 spin_unlock_irqrestore(&smc->lock, flags);
1990 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1992 struct smc_private *smc = netdev_priv(dev);
1993 unsigned int ioaddr = dev->base_addr;
1994 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1996 unsigned long flags;
1998 spin_lock_irqsave(&smc->lock, flags);
2000 if (smc->cfg & CFG_MII_SELECT)
2001 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2003 ret = smc_netdev_set_ecmd(dev, ecmd);
2004 SMC_SELECT_BANK(saved_bank);
2005 spin_unlock_irqrestore(&smc->lock, flags);
2009 static u32 smc_get_link(struct net_device *dev)
2011 struct smc_private *smc = netdev_priv(dev);
2012 unsigned int ioaddr = dev->base_addr;
2013 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2015 unsigned long flags;
2017 spin_lock_irqsave(&smc->lock, flags);
2019 ret = smc_link_ok(dev);
2020 SMC_SELECT_BANK(saved_bank);
2021 spin_unlock_irqrestore(&smc->lock, flags);
2025 static int smc_nway_reset(struct net_device *dev)
2027 struct smc_private *smc = netdev_priv(dev);
2028 if (smc->cfg & CFG_MII_SELECT) {
2029 unsigned int ioaddr = dev->base_addr;
2030 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2034 res = mii_nway_restart(&smc->mii_if);
2035 SMC_SELECT_BANK(saved_bank);
2042 static const struct ethtool_ops ethtool_ops = {
2043 .begin = check_if_running,
2044 .get_drvinfo = smc_get_drvinfo,
2045 .get_settings = smc_get_settings,
2046 .set_settings = smc_set_settings,
2047 .get_link = smc_get_link,
2048 .nway_reset = smc_nway_reset,
2051 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2053 struct smc_private *smc = netdev_priv(dev);
2054 struct mii_ioctl_data *mii = if_mii(rq);
2057 unsigned int ioaddr = dev->base_addr;
2058 unsigned long flags;
2060 if (!netif_running(dev))
2063 spin_lock_irqsave(&smc->lock, flags);
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_irqrestore(&smc->lock, flags);
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);