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);
327 spin_lock_init(&smc->lock);
328 link->io.NumPorts1 = 16;
329 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
330 link->io.IOAddrLines = 4;
331 link->conf.Attributes = CONF_ENABLE_IRQ;
332 link->conf.IntType = INT_MEMORY_AND_IO;
334 /* The SMC91c92-specific entries in the device structure. */
335 dev->netdev_ops = &smc_netdev_ops;
336 SET_ETHTOOL_OPS(dev, ðtool_ops);
337 dev->watchdog_timeo = TX_TIMEOUT;
339 smc->mii_if.dev = dev;
340 smc->mii_if.mdio_read = mdio_read;
341 smc->mii_if.mdio_write = mdio_write;
342 smc->mii_if.phy_id_mask = 0x1f;
343 smc->mii_if.reg_num_mask = 0x1f;
345 return smc91c92_config(link);
346 } /* smc91c92_attach */
348 /*======================================================================
350 This deletes a driver "instance". The device is de-registered
351 with Card Services. If it has been released, all local data
352 structures are freed. Otherwise, the structures will be freed
353 when the device is released.
355 ======================================================================*/
357 static void smc91c92_detach(struct pcmcia_device *link)
359 struct net_device *dev = link->priv;
361 dev_dbg(&link->dev, "smc91c92_detach\n");
363 unregister_netdev(dev);
365 smc91c92_release(link);
368 } /* smc91c92_detach */
370 /*====================================================================*/
372 static int cvt_ascii_address(struct net_device *dev, char *s)
378 for (i = 0; i < 6; i++) {
380 for (j = 0; j < 2; j++) {
383 da += ((c >= '0') && (c <= '9')) ?
384 (c - '0') : ((c & 0x0f) + 9);
386 dev->dev_addr[i] = da;
391 /*====================================================================
393 Configuration stuff for Megahertz cards
395 mhz_3288_power() is used to power up a 3288's ethernet chip.
396 mhz_mfc_config() handles socket setup for multifunction (1144
397 and 3288) cards. mhz_setup() gets a card's hardware ethernet
400 ======================================================================*/
402 static int mhz_3288_power(struct pcmcia_device *link)
404 struct net_device *dev = link->priv;
405 struct smc_private *smc = netdev_priv(dev);
408 /* Read the ISR twice... */
409 readb(smc->base+MEGAHERTZ_ISR);
411 readb(smc->base+MEGAHERTZ_ISR);
416 /* Now read and write the COR... */
417 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
419 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
424 static int mhz_mfc_config_check(struct pcmcia_device *p_dev,
425 cistpl_cftable_entry_t *cf,
426 cistpl_cftable_entry_t *dflt,
431 p_dev->io.BasePort2 = cf->io.win[0].base;
432 for (k = 0; k < 0x400; k += 0x10) {
435 p_dev->io.BasePort1 = k ^ 0x300;
436 if (!pcmcia_request_io(p_dev, &p_dev->io))
442 static int mhz_mfc_config(struct pcmcia_device *link)
444 struct net_device *dev = link->priv;
445 struct smc_private *smc = netdev_priv(dev);
450 link->conf.Attributes |= CONF_ENABLE_SPKR;
451 link->conf.Status = CCSR_AUDIO_ENA;
452 link->io.IOAddrLines = 16;
453 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
454 link->io.NumPorts2 = 8;
456 /* The Megahertz combo cards have modem-like CIS entries, so
457 we have to explicitly try a bunch of port combinations. */
458 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
461 dev->base_addr = link->io.BasePort1;
463 /* Allocate a memory window, for accessing the ISR */
464 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
465 req.Base = req.Size = 0;
467 i = pcmcia_request_window(link, &req, &link->win);
471 smc->base = ioremap(req.Base, req.Size);
472 mem.CardOffset = mem.Page = 0;
473 if (smc->manfid == MANFID_MOTOROLA)
474 mem.CardOffset = link->conf.ConfigBase;
475 i = pcmcia_map_mem_page(link, link->win, &mem);
478 (smc->manfid == MANFID_MEGAHERTZ) &&
479 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
480 mhz_3288_power(link);
485 static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
489 struct net_device *dev = priv;
493 if (pcmcia_parse_tuple(tuple, &parse))
496 buf = parse.version_1.str + parse.version_1.ofs[3];
498 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
504 static int mhz_setup(struct pcmcia_device *link)
506 struct net_device *dev = link->priv;
511 /* Read the station address from the CIS. It is stored as the last
512 (fourth) string in the Version 1 Version/ID tuple. */
513 if ((link->prod_id[3]) &&
514 (cvt_ascii_address(dev, link->prod_id[3]) == 0))
517 /* Workarounds for broken cards start here. */
518 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
519 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
522 /* Another possibility: for the EM3288, in a special tuple */
524 len = pcmcia_get_tuple(link, 0x81, &buf);
525 if (buf && len >= 13) {
527 if (cvt_ascii_address(dev, buf) == 0)
535 /*======================================================================
537 Configuration stuff for the Motorola Mariner
539 mot_config() writes directly to the Mariner configuration
540 registers because the CIS is just bogus.
542 ======================================================================*/
544 static void mot_config(struct pcmcia_device *link)
546 struct net_device *dev = link->priv;
547 struct smc_private *smc = netdev_priv(dev);
548 unsigned int ioaddr = dev->base_addr;
549 unsigned int iouart = link->io.BasePort2;
551 /* Set UART base address and force map with COR bit 1 */
552 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
553 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
554 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
556 /* Set SMC base address and force map with COR bit 1 */
557 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
558 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
559 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
561 /* Wait for things to settle down */
565 static int mot_setup(struct pcmcia_device *link)
567 struct net_device *dev = link->priv;
568 unsigned int ioaddr = dev->base_addr;
572 /* Read Ethernet address from Serial EEPROM */
574 for (i = 0; i < 3; i++) {
576 outw(MOT_EEPROM + i, ioaddr + POINTER);
578 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
580 for (loop = wait = 0; loop < 200; loop++) {
582 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
583 if (wait == 0) break;
589 addr = inw(ioaddr + GENERAL);
590 dev->dev_addr[2*i] = addr & 0xff;
591 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
597 /*====================================================================*/
599 static int smc_configcheck(struct pcmcia_device *p_dev,
600 cistpl_cftable_entry_t *cf,
601 cistpl_cftable_entry_t *dflt,
605 p_dev->io.BasePort1 = cf->io.win[0].base;
606 p_dev->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
607 return pcmcia_request_io(p_dev, &p_dev->io);
610 static int smc_config(struct pcmcia_device *link)
612 struct net_device *dev = link->priv;
615 link->io.NumPorts1 = 16;
616 i = pcmcia_loop_config(link, smc_configcheck, NULL);
618 dev->base_addr = link->io.BasePort1;
624 static int smc_setup(struct pcmcia_device *link)
626 struct net_device *dev = link->priv;
628 /* Check for a LAN function extension tuple */
629 if (!pcmcia_get_mac_from_cis(link, dev))
632 /* Try the third string in the Version 1 Version/ID tuple. */
633 if (link->prod_id[2]) {
634 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
640 /*====================================================================*/
642 static int osi_config(struct pcmcia_device *link)
644 struct net_device *dev = link->priv;
645 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
648 link->conf.Attributes |= CONF_ENABLE_SPKR;
649 link->conf.Status = CCSR_AUDIO_ENA;
650 link->io.NumPorts1 = 64;
651 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
652 link->io.NumPorts2 = 8;
653 link->io.IOAddrLines = 16;
655 /* Enable Hard Decode, LAN, Modem */
656 link->conf.ConfigIndex = 0x23;
658 for (i = j = 0; j < 4; j++) {
659 link->io.BasePort2 = com[j];
660 i = pcmcia_request_io(link, &link->io);
665 /* Fallback: turn off hard decode */
666 link->conf.ConfigIndex = 0x03;
667 link->io.NumPorts2 = 0;
668 i = pcmcia_request_io(link, &link->io);
670 dev->base_addr = link->io.BasePort1 + 0x10;
674 static int osi_load_firmware(struct pcmcia_device *link)
676 const struct firmware *fw;
679 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
681 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
685 /* Download the Seven of Diamonds firmware */
686 for (i = 0; i < fw->size; i++) {
687 outb(fw->data[i], link->io.BasePort1 + 2);
690 release_firmware(fw);
694 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
698 struct net_device *dev = priv;
701 if (tuple->TupleDataLen < 8)
703 if (tuple->TupleData[0] != 0x04)
705 for (i = 0; i < 6; i++)
706 dev->dev_addr[i] = tuple->TupleData[i+2];
711 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
713 struct net_device *dev = link->priv;
716 /* Read the station address from tuple 0x90, subtuple 0x04 */
717 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
720 if (((manfid == MANFID_OSITECH) &&
721 (cardid == PRODID_OSITECH_SEVEN)) ||
722 ((manfid == MANFID_PSION) &&
723 (cardid == PRODID_PSION_NET100))) {
724 rc = osi_load_firmware(link);
727 } else if (manfid == MANFID_OSITECH) {
728 /* Make sure both functions are powered up */
729 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
730 /* Now, turn on the interrupt for both card functions */
731 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
732 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
733 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
734 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
739 static int smc91c92_suspend(struct pcmcia_device *link)
741 struct net_device *dev = link->priv;
744 netif_device_detach(dev);
749 static int smc91c92_resume(struct pcmcia_device *link)
751 struct net_device *dev = link->priv;
752 struct smc_private *smc = netdev_priv(dev);
755 if ((smc->manfid == MANFID_MEGAHERTZ) &&
756 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
757 mhz_3288_power(link);
758 if (smc->manfid == MANFID_MOTOROLA)
760 if ((smc->manfid == MANFID_OSITECH) &&
761 (smc->cardid != PRODID_OSITECH_SEVEN)) {
762 /* Power up the card and enable interrupts */
763 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
764 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
766 if (((smc->manfid == MANFID_OSITECH) &&
767 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
768 ((smc->manfid == MANFID_PSION) &&
769 (smc->cardid == PRODID_PSION_NET100))) {
770 i = osi_load_firmware(link);
772 pr_err("smc91c92_cs: Failed to load firmware\n");
778 netif_device_attach(dev);
785 /*======================================================================
787 This verifies that the chip is some SMC91cXX variant, and returns
788 the revision code if successful. Otherwise, it returns -ENODEV.
790 ======================================================================*/
792 static int check_sig(struct pcmcia_device *link)
794 struct net_device *dev = link->priv;
795 unsigned int ioaddr = dev->base_addr;
800 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
801 /* Try powering up the chip */
802 outw(0, ioaddr + CONTROL);
806 /* Try setting bus width */
807 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
808 s = inb(ioaddr + CONFIG);
813 outb(s, ioaddr + CONFIG);
815 /* Check Base Address Register to make sure bus width is OK */
816 s = inw(ioaddr + BASE_ADDR);
817 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
818 ((s >> 8) != (s & 0xff))) {
820 s = inw(ioaddr + REVISION);
826 .Attributes = CONF_IO_CHANGE_WIDTH,
828 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
830 smc91c92_suspend(link);
831 pcmcia_modify_configuration(link, &mod);
832 smc91c92_resume(link);
833 return check_sig(link);
838 /*======================================================================
840 smc91c92_config() is scheduled to run after a CARD_INSERTION event
841 is received, to configure the PCMCIA socket, and to make the
842 ethernet device available to the system.
844 ======================================================================*/
846 static int smc91c92_config(struct pcmcia_device *link)
848 struct net_device *dev = link->priv;
849 struct smc_private *smc = netdev_priv(dev);
855 dev_dbg(&link->dev, "smc91c92_config\n");
857 smc->manfid = link->manf_id;
858 smc->cardid = link->card_id;
860 if ((smc->manfid == MANFID_OSITECH) &&
861 (smc->cardid != PRODID_OSITECH_SEVEN)) {
862 i = osi_config(link);
863 } else if ((smc->manfid == MANFID_MOTOROLA) ||
864 ((smc->manfid == MANFID_MEGAHERTZ) &&
865 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
866 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
867 i = mhz_mfc_config(link);
869 i = smc_config(link);
874 i = pcmcia_request_irq(link, smc_interrupt);
877 i = pcmcia_request_configuration(link, &link->conf);
881 if (smc->manfid == MANFID_MOTOROLA)
884 dev->irq = link->irq;
886 if ((if_port >= 0) && (if_port <= 2))
887 dev->if_port = if_port;
889 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
891 switch (smc->manfid) {
894 i = osi_setup(link, smc->manfid, smc->cardid); break;
896 case MANFID_NEW_MEDIA:
897 i = smc_setup(link); break;
898 case 0x128: /* For broken Megahertz cards */
899 case MANFID_MEGAHERTZ:
900 i = mhz_setup(link); break;
901 case MANFID_MOTOROLA:
902 default: /* get the hw address from EEPROM */
903 i = mot_setup(link); break;
907 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
914 rev = check_sig(link);
918 case 3: name = "92"; break;
919 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
920 case 5: name = "95"; break;
921 case 7: name = "100"; break;
922 case 8: name = "100-FD"; break;
923 case 9: name = "110"; break;
926 ioaddr = dev->base_addr;
930 mir = inw(ioaddr + MEMINFO) & 0xff;
931 if (mir == 0xff) mir++;
932 /* Get scale factor for memory size */
933 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
934 mir *= 128 * (1<<((mcr >> 9) & 7));
936 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
937 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
938 if (smc->manfid == MANFID_OSITECH)
939 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
941 smc->cfg |= CFG_MII_SELECT;
945 if (smc->cfg & CFG_MII_SELECT) {
948 for (i = 0; i < 32; i++) {
949 j = mdio_read(dev, i, 1);
950 if ((j != 0) && (j != 0xffff)) break;
952 smc->mii_if.phy_id = (i < 32) ? i : -1;
957 SET_NETDEV_DEV(dev, &link->dev);
959 if (register_netdev(dev) != 0) {
960 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
964 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
966 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
971 printk(KERN_INFO " %lu byte", mir);
973 printk(KERN_INFO " %lu kb", mir>>10);
974 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
975 "MII" : if_names[dev->if_port]);
978 if (smc->cfg & CFG_MII_SELECT) {
979 if (smc->mii_if.phy_id != -1) {
980 dev_dbg(&link->dev, " MII transceiver at index %d, status %x.\n",
981 smc->mii_if.phy_id, j);
983 printk(KERN_NOTICE " No MII transceivers found!\n");
989 unregister_netdev(dev);
991 smc91c92_release(link);
994 } /* smc91c92_config */
996 /*======================================================================
998 After a card is removed, smc91c92_release() will unregister the net
999 device, and release the PCMCIA configuration. If the device is
1000 still open, this will be postponed until it is closed.
1002 ======================================================================*/
1004 static void smc91c92_release(struct pcmcia_device *link)
1006 dev_dbg(&link->dev, "smc91c92_release\n");
1008 struct net_device *dev = link->priv;
1009 struct smc_private *smc = netdev_priv(dev);
1012 pcmcia_disable_device(link);
1015 /*======================================================================
1017 MII interface support for SMC91cXX based cards
1018 ======================================================================*/
1020 #define MDIO_SHIFT_CLK 0x04
1021 #define MDIO_DATA_OUT 0x01
1022 #define MDIO_DIR_WRITE 0x08
1023 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1024 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1025 #define MDIO_DATA_READ 0x02
1027 static void mdio_sync(unsigned int addr)
1030 for (bits = 0; bits < 32; bits++) {
1031 outb(MDIO_DATA_WRITE1, addr);
1032 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1036 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1038 unsigned int addr = dev->base_addr + MGMT;
1039 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1043 for (i = 13; i >= 0; i--) {
1044 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1046 outb(dat | MDIO_SHIFT_CLK, addr);
1048 for (i = 19; i > 0; i--) {
1050 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1051 outb(MDIO_SHIFT_CLK, addr);
1053 return (retval>>1) & 0xffff;
1056 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1058 unsigned int addr = dev->base_addr + MGMT;
1059 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1063 for (i = 31; i >= 0; i--) {
1064 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1066 outb(dat | MDIO_SHIFT_CLK, addr);
1068 for (i = 1; i >= 0; i--) {
1070 outb(MDIO_SHIFT_CLK, addr);
1074 /*======================================================================
1076 The driver core code, most of which should be common with a
1077 non-PCMCIA implementation.
1079 ======================================================================*/
1082 static void smc_dump(struct net_device *dev)
1084 unsigned int ioaddr = dev->base_addr;
1086 save = inw(ioaddr + BANK_SELECT);
1087 for (w = 0; w < 4; w++) {
1089 printk(KERN_DEBUG "bank %d: ", w);
1090 for (i = 0; i < 14; i += 2)
1091 printk(" %04x", inw(ioaddr + i));
1094 outw(save, ioaddr + BANK_SELECT);
1098 static int smc_open(struct net_device *dev)
1100 struct smc_private *smc = netdev_priv(dev);
1101 struct pcmcia_device *link = smc->p_dev;
1103 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1104 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1109 /* Check that the PCMCIA card is still here. */
1110 if (!pcmcia_dev_present(link))
1112 /* Physical device present signature. */
1113 if (check_sig(link) < 0) {
1114 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1119 netif_start_queue(dev);
1120 smc->saved_skb = NULL;
1121 smc->packets_waiting = 0;
1124 init_timer(&smc->media);
1125 smc->media.function = &media_check;
1126 smc->media.data = (u_long) dev;
1127 smc->media.expires = jiffies + HZ;
1128 add_timer(&smc->media);
1133 /*====================================================================*/
1135 static int smc_close(struct net_device *dev)
1137 struct smc_private *smc = netdev_priv(dev);
1138 struct pcmcia_device *link = smc->p_dev;
1139 unsigned int ioaddr = dev->base_addr;
1141 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1142 dev->name, inw(ioaddr + BANK_SELECT));
1144 netif_stop_queue(dev);
1146 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1147 Don't bother to check for chip present. */
1148 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1149 outw(0, ioaddr + INTERRUPT);
1151 mask_bits(0xff00, ioaddr + RCR);
1152 mask_bits(0xff00, ioaddr + TCR);
1154 /* Put the chip into power-down mode. */
1156 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1159 del_timer_sync(&smc->media);
1164 /*======================================================================
1166 Transfer a packet to the hardware and trigger the packet send.
1167 This may be called at either from either the Tx queue code
1168 or the interrupt handler.
1170 ======================================================================*/
1172 static void smc_hardware_send_packet(struct net_device * dev)
1174 struct smc_private *smc = netdev_priv(dev);
1175 struct sk_buff *skb = smc->saved_skb;
1176 unsigned int ioaddr = dev->base_addr;
1180 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1184 /* There should be a packet slot waiting. */
1185 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1186 if (packet_no & 0x80) {
1187 /* If not, there is a hardware problem! Likely an ejected card. */
1188 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1189 " failed, status %#2.2x.\n", dev->name, packet_no);
1190 dev_kfree_skb_irq(skb);
1191 smc->saved_skb = NULL;
1192 netif_start_queue(dev);
1196 dev->stats.tx_bytes += skb->len;
1197 /* The card should use the just-allocated buffer. */
1198 outw(packet_no, ioaddr + PNR_ARR);
1199 /* point to the beginning of the packet */
1200 outw(PTR_AUTOINC , ioaddr + POINTER);
1202 /* Send the packet length (+6 for status, length and ctl byte)
1203 and the status word (set to zeros). */
1205 u_char *buf = skb->data;
1206 u_int length = skb->len; /* The chip will pad to ethernet min. */
1208 pr_debug("%s: Trying to xmit packet of length %d.\n",
1211 /* send the packet length: +6 for status word, length, and ctl */
1212 outw(0, ioaddr + DATA_1);
1213 outw(length + 6, ioaddr + DATA_1);
1214 outsw(ioaddr + DATA_1, buf, length >> 1);
1216 /* The odd last byte, if there is one, goes in the control word. */
1217 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1220 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1221 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1222 (inw(ioaddr + INTERRUPT) & 0xff00),
1223 ioaddr + INTERRUPT);
1225 /* The chip does the rest of the work. */
1226 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1228 smc->saved_skb = NULL;
1229 dev_kfree_skb_irq(skb);
1230 dev->trans_start = jiffies;
1231 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; /* prevent tx timeout */
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);
1363 /*====================================================================*/
1365 static void smc_eph_irq(struct net_device *dev)
1367 struct smc_private *smc = netdev_priv(dev);
1368 unsigned int ioaddr = dev->base_addr;
1369 u_short card_stats, ephs;
1372 ephs = inw(ioaddr + EPH);
1373 pr_debug("%s: Ethernet protocol handler interrupt, status"
1374 " %4.4x.\n", dev->name, ephs);
1375 /* Could be a counter roll-over warning: update stats. */
1376 card_stats = inw(ioaddr + COUNTER);
1377 /* single collisions */
1378 dev->stats.collisions += card_stats & 0xF;
1380 /* multiple collisions */
1381 dev->stats.collisions += card_stats & 0xF;
1382 #if 0 /* These are for when linux supports these statistics */
1383 card_stats >>= 4; /* deferred */
1384 card_stats >>= 4; /* excess deferred */
1386 /* If we had a transmit error we must re-enable the transmitter. */
1387 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1389 /* Clear a link error interrupt. */
1391 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1392 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1397 /*====================================================================*/
1399 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1401 struct net_device *dev = dev_id;
1402 struct smc_private *smc = netdev_priv(dev);
1403 unsigned int ioaddr;
1404 u_short saved_bank, saved_pointer, mask, status;
1405 unsigned int handled = 1;
1406 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1408 if (!netif_device_present(dev))
1411 ioaddr = dev->base_addr;
1413 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1416 spin_lock(&smc->lock);
1418 saved_bank = inw(ioaddr + BANK_SELECT);
1419 if ((saved_bank & 0xff00) != 0x3300) {
1420 /* The device does not exist -- the card could be off-line, or
1421 maybe it has been ejected. */
1422 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1423 "/ejected device.\n", dev->name, irq);
1429 saved_pointer = inw(ioaddr + POINTER);
1430 mask = inw(ioaddr + INTERRUPT) >> 8;
1431 /* clear all interrupts */
1432 outw(0, ioaddr + INTERRUPT);
1434 do { /* read the status flag, and mask it */
1435 status = inw(ioaddr + INTERRUPT) & 0xff;
1436 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1438 if ((status & mask) == 0) {
1439 if (bogus_cnt == INTR_WORK)
1443 if (status & IM_RCV_INT) {
1444 /* Got a packet(s). */
1447 if (status & IM_TX_INT) {
1449 outw(IM_TX_INT, ioaddr + INTERRUPT);
1452 if (status & IM_TX_EMPTY_INT) {
1453 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1454 mask &= ~IM_TX_EMPTY_INT;
1455 dev->stats.tx_packets += smc->packets_waiting;
1456 smc->packets_waiting = 0;
1458 if (status & IM_ALLOC_INT) {
1459 /* Clear this interrupt so it doesn't happen again */
1460 mask &= ~IM_ALLOC_INT;
1462 smc_hardware_send_packet(dev);
1464 /* enable xmit interrupts based on this */
1465 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1467 /* and let the card send more packets to me */
1468 netif_wake_queue(dev);
1470 if (status & IM_RX_OVRN_INT) {
1471 dev->stats.rx_errors++;
1472 dev->stats.rx_fifo_errors++;
1474 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1475 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1477 if (status & IM_EPH_INT)
1479 } while (--bogus_cnt);
1481 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1482 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1484 /* restore state register */
1485 outw((mask<<8), ioaddr + INTERRUPT);
1486 outw(saved_pointer, ioaddr + POINTER);
1487 SMC_SELECT_BANK(saved_bank);
1489 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1493 if ((smc->manfid == MANFID_OSITECH) &&
1494 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1495 /* Retrigger interrupt if needed */
1496 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1497 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1499 if (smc->manfid == MANFID_MOTOROLA) {
1501 cor = readb(smc->base + MOT_UART + CISREG_COR);
1502 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1503 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1504 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1505 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1506 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1508 #ifdef DOES_NOT_WORK
1509 if (smc->base != NULL) { /* Megahertz MFC's */
1510 readb(smc->base+MEGAHERTZ_ISR);
1511 readb(smc->base+MEGAHERTZ_ISR);
1514 spin_unlock(&smc->lock);
1515 return IRQ_RETVAL(handled);
1518 /*====================================================================*/
1520 static void smc_rx(struct net_device *dev)
1522 unsigned int ioaddr = dev->base_addr;
1524 int packet_length; /* Caution: not frame length, rather words
1525 to transfer from the chip. */
1527 /* Assertion: we are in Window 2. */
1529 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1530 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1535 /* Reset the read pointer, and read the status and packet length. */
1536 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1537 rx_status = inw(ioaddr + DATA_1);
1538 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1540 pr_debug("%s: Receive status %4.4x length %d.\n",
1541 dev->name, rx_status, packet_length);
1543 if (!(rx_status & RS_ERRORS)) {
1544 /* do stuff to make a new packet */
1545 struct sk_buff *skb;
1547 /* Note: packet_length adds 5 or 6 extra bytes here! */
1548 skb = dev_alloc_skb(packet_length+2);
1551 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1552 dev->stats.rx_dropped++;
1553 outw(MC_RELEASE, ioaddr + MMU_CMD);
1557 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1558 skb_reserve(skb, 2);
1559 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1560 (packet_length+1)>>1);
1561 skb->protocol = eth_type_trans(skb, dev);
1564 dev->last_rx = jiffies;
1565 dev->stats.rx_packets++;
1566 dev->stats.rx_bytes += packet_length;
1567 if (rx_status & RS_MULTICAST)
1568 dev->stats.multicast++;
1571 dev->stats.rx_errors++;
1573 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1574 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1575 dev->stats.rx_length_errors++;
1576 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1578 /* Let the MMU free the memory of this packet. */
1579 outw(MC_RELEASE, ioaddr + MMU_CMD);
1582 /*======================================================================
1584 Set the receive mode.
1586 This routine is used by both the protocol level to notify us of
1587 promiscuous/multicast mode changes, and by the open/reset code to
1588 initialize the Rx registers. We always set the multicast list and
1589 leave the receiver running.
1591 ======================================================================*/
1593 static void set_rx_mode(struct net_device *dev)
1595 unsigned int ioaddr = dev->base_addr;
1596 struct smc_private *smc = netdev_priv(dev);
1597 unsigned char multicast_table[8];
1598 unsigned long flags;
1599 u_short rx_cfg_setting;
1602 memset(multicast_table, 0, sizeof(multicast_table));
1604 if (dev->flags & IFF_PROMISC) {
1605 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1606 } else if (dev->flags & IFF_ALLMULTI)
1607 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1609 if (!netdev_mc_empty(dev)) {
1610 struct netdev_hw_addr *ha;
1612 netdev_for_each_mc_addr(ha, dev) {
1613 u_int position = ether_crc(6, ha->addr);
1614 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1617 rx_cfg_setting = RxStripCRC | RxEnable;
1620 /* Load MC table and Rx setting into the chip without interrupts. */
1621 spin_lock_irqsave(&smc->lock, flags);
1623 for (i = 0; i < 8; i++)
1624 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1626 outw(rx_cfg_setting, ioaddr + RCR);
1628 spin_unlock_irqrestore(&smc->lock, flags);
1631 /*======================================================================
1633 Senses when a card's config changes. Here, it's coax or TP.
1635 ======================================================================*/
1637 static int s9k_config(struct net_device *dev, struct ifmap *map)
1639 struct smc_private *smc = netdev_priv(dev);
1640 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1641 if (smc->cfg & CFG_MII_SELECT)
1643 else if (map->port > 2)
1645 dev->if_port = map->port;
1646 printk(KERN_INFO "%s: switched to %s port\n",
1647 dev->name, if_names[dev->if_port]);
1653 /*======================================================================
1655 Reset the chip, reloading every register that might be corrupted.
1657 ======================================================================*/
1660 Set transceiver type, perhaps to something other than what the user
1661 specified in dev->if_port.
1663 static void smc_set_xcvr(struct net_device *dev, int if_port)
1665 struct smc_private *smc = netdev_priv(dev);
1666 unsigned int ioaddr = dev->base_addr;
1669 saved_bank = inw(ioaddr + BANK_SELECT);
1672 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1673 if ((smc->manfid == MANFID_OSITECH) &&
1674 (smc->cardid != PRODID_OSITECH_SEVEN))
1675 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1676 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1678 outw(smc->cfg, ioaddr + CONFIG);
1679 if ((smc->manfid == MANFID_OSITECH) &&
1680 (smc->cardid != PRODID_OSITECH_SEVEN))
1681 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1682 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1684 SMC_SELECT_BANK(saved_bank);
1687 static void smc_reset(struct net_device *dev)
1689 unsigned int ioaddr = dev->base_addr;
1690 struct smc_private *smc = netdev_priv(dev);
1693 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1695 /* The first interaction must be a write to bring the chip out
1698 /* Reset the chip. */
1699 outw(RCR_SOFTRESET, ioaddr + RCR);
1702 /* Clear the transmit and receive configuration registers. */
1703 outw(RCR_CLEAR, ioaddr + RCR);
1704 outw(TCR_CLEAR, ioaddr + TCR);
1706 /* Set the Window 1 control, configuration and station addr registers.
1707 No point in writing the I/O base register ;-> */
1709 /* Automatically release successfully transmitted packets,
1710 Accept link errors, counter and Tx error interrupts. */
1711 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1713 smc_set_xcvr(dev, dev->if_port);
1714 if ((smc->manfid == MANFID_OSITECH) &&
1715 (smc->cardid != PRODID_OSITECH_SEVEN))
1716 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1717 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1718 ioaddr - 0x10 + OSITECH_AUI_PWR);
1720 /* Fill in the physical address. The databook is wrong about the order! */
1721 for (i = 0; i < 6; i += 2)
1722 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1723 ioaddr + ADDR0 + i);
1727 outw(MC_RESET, ioaddr + MMU_CMD);
1728 outw(0, ioaddr + INTERRUPT);
1730 /* Re-enable the chip. */
1732 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1733 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1736 if (smc->cfg & CFG_MII_SELECT) {
1740 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1742 /* Advertise 100F, 100H, 10F, 10H */
1743 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1745 /* Restart MII autonegotiation */
1746 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1747 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1750 /* Enable interrupts. */
1752 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1753 ioaddr + INTERRUPT);
1756 /*======================================================================
1758 Media selection timer routine
1760 ======================================================================*/
1762 static void media_check(u_long arg)
1764 struct net_device *dev = (struct net_device *) arg;
1765 struct smc_private *smc = netdev_priv(dev);
1766 unsigned int ioaddr = dev->base_addr;
1767 u_short i, media, saved_bank;
1769 unsigned long flags;
1771 spin_lock_irqsave(&smc->lock, flags);
1773 saved_bank = inw(ioaddr + BANK_SELECT);
1775 if (!netif_device_present(dev))
1780 /* need MC_RESET to keep the memory consistent. errata? */
1782 outw(MC_RESET, ioaddr + MMU_CMD);
1785 i = inw(ioaddr + INTERRUPT);
1787 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1789 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1791 SMC_SELECT_BANK(saved_bank);
1792 spin_unlock_irqrestore(&smc->lock, flags);
1794 /* Check for pending interrupt with watchdog flag set: with
1795 this, we can limp along even if the interrupt is blocked */
1796 if (smc->watchdog++ && ((i>>8) & i)) {
1797 if (!smc->fast_poll)
1798 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1799 local_irq_save(flags);
1800 smc_interrupt(dev->irq, dev);
1801 local_irq_restore(flags);
1802 smc->fast_poll = HZ;
1804 if (smc->fast_poll) {
1806 smc->media.expires = jiffies + HZ/100;
1807 add_timer(&smc->media);
1811 spin_lock_irqsave(&smc->lock, flags);
1813 saved_bank = inw(ioaddr + BANK_SELECT);
1815 if (smc->cfg & CFG_MII_SELECT) {
1816 if (smc->mii_if.phy_id < 0)
1820 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1821 if (!link || (link == 0xffff)) {
1822 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1823 smc->mii_if.phy_id = -1;
1828 if (link != smc->link_status) {
1829 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1830 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1831 (link) ? "found" : "lost");
1832 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1835 printk(KERN_INFO "%s: autonegotiation complete: "
1836 "%sbaseT-%cD selected\n", dev->name,
1837 ((p & 0x0180) ? "100" : "10"),
1838 (smc->duplex ? 'F' : 'H'));
1841 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1842 smc->link_status = link;
1847 /* Ignore collisions unless we've had no rx's recently */
1848 if (time_after(jiffies, dev->last_rx + HZ)) {
1849 if (smc->tx_err || (smc->media_status & EPH_16COL))
1854 if (media != smc->media_status) {
1855 if ((media & smc->media_status & 1) &&
1856 ((smc->media_status ^ media) & EPH_LINK_OK))
1857 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1858 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1859 else if ((media & smc->media_status & 2) &&
1860 ((smc->media_status ^ media) & EPH_16COL))
1861 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1862 (media & EPH_16COL ? "problem" : "ok"));
1863 if (dev->if_port == 0) {
1865 if (media & EPH_LINK_OK)
1866 printk(KERN_INFO "%s: flipped to 10baseT\n",
1869 smc_set_xcvr(dev, 2);
1871 if (media & EPH_16COL)
1872 smc_set_xcvr(dev, 1);
1874 printk(KERN_INFO "%s: flipped to 10base2\n",
1878 smc->media_status = media;
1882 smc->media.expires = jiffies + HZ;
1883 add_timer(&smc->media);
1884 SMC_SELECT_BANK(saved_bank);
1885 spin_unlock_irqrestore(&smc->lock, flags);
1888 static int smc_link_ok(struct net_device *dev)
1890 unsigned int ioaddr = dev->base_addr;
1891 struct smc_private *smc = netdev_priv(dev);
1893 if (smc->cfg & CFG_MII_SELECT) {
1894 return mii_link_ok(&smc->mii_if);
1897 return inw(ioaddr + EPH) & EPH_LINK_OK;
1901 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1904 unsigned int ioaddr = dev->base_addr;
1906 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1907 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1910 tmp = inw(ioaddr + CONFIG);
1911 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1912 ecmd->transceiver = XCVR_INTERNAL;
1913 ecmd->speed = SPEED_10;
1914 ecmd->phy_address = ioaddr + MGMT;
1917 tmp = inw(ioaddr + TCR);
1918 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1923 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1926 unsigned int ioaddr = dev->base_addr;
1928 if (ecmd->speed != SPEED_10)
1930 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1932 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1934 if (ecmd->transceiver != XCVR_INTERNAL)
1937 if (ecmd->port == PORT_AUI)
1938 smc_set_xcvr(dev, 1);
1940 smc_set_xcvr(dev, 0);
1943 tmp = inw(ioaddr + TCR);
1944 if (ecmd->duplex == DUPLEX_FULL)
1948 outw(tmp, ioaddr + TCR);
1953 static int check_if_running(struct net_device *dev)
1955 if (!netif_running(dev))
1960 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1962 strcpy(info->driver, DRV_NAME);
1963 strcpy(info->version, DRV_VERSION);
1966 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1968 struct smc_private *smc = netdev_priv(dev);
1969 unsigned int ioaddr = dev->base_addr;
1970 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1972 unsigned long flags;
1974 spin_lock_irqsave(&smc->lock, flags);
1976 if (smc->cfg & CFG_MII_SELECT)
1977 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1979 ret = smc_netdev_get_ecmd(dev, ecmd);
1980 SMC_SELECT_BANK(saved_bank);
1981 spin_unlock_irqrestore(&smc->lock, flags);
1985 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1987 struct smc_private *smc = netdev_priv(dev);
1988 unsigned int ioaddr = dev->base_addr;
1989 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1991 unsigned long flags;
1993 spin_lock_irqsave(&smc->lock, flags);
1995 if (smc->cfg & CFG_MII_SELECT)
1996 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
1998 ret = smc_netdev_set_ecmd(dev, ecmd);
1999 SMC_SELECT_BANK(saved_bank);
2000 spin_unlock_irqrestore(&smc->lock, flags);
2004 static u32 smc_get_link(struct net_device *dev)
2006 struct smc_private *smc = netdev_priv(dev);
2007 unsigned int ioaddr = dev->base_addr;
2008 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2010 unsigned long flags;
2012 spin_lock_irqsave(&smc->lock, flags);
2014 ret = smc_link_ok(dev);
2015 SMC_SELECT_BANK(saved_bank);
2016 spin_unlock_irqrestore(&smc->lock, flags);
2020 static int smc_nway_reset(struct net_device *dev)
2022 struct smc_private *smc = netdev_priv(dev);
2023 if (smc->cfg & CFG_MII_SELECT) {
2024 unsigned int ioaddr = dev->base_addr;
2025 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2029 res = mii_nway_restart(&smc->mii_if);
2030 SMC_SELECT_BANK(saved_bank);
2037 static const struct ethtool_ops ethtool_ops = {
2038 .begin = check_if_running,
2039 .get_drvinfo = smc_get_drvinfo,
2040 .get_settings = smc_get_settings,
2041 .set_settings = smc_set_settings,
2042 .get_link = smc_get_link,
2043 .nway_reset = smc_nway_reset,
2046 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2048 struct smc_private *smc = netdev_priv(dev);
2049 struct mii_ioctl_data *mii = if_mii(rq);
2052 unsigned int ioaddr = dev->base_addr;
2053 unsigned long flags;
2055 if (!netif_running(dev))
2058 spin_lock_irqsave(&smc->lock, flags);
2059 saved_bank = inw(ioaddr + BANK_SELECT);
2061 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2062 SMC_SELECT_BANK(saved_bank);
2063 spin_unlock_irqrestore(&smc->lock, flags);
2067 static struct pcmcia_device_id smc91c92_ids[] = {
2068 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2069 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2070 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2071 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2072 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2073 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2074 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2075 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2076 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2077 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2078 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2079 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2080 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2081 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2082 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2083 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2084 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2085 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2086 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2087 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2088 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2089 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2090 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2091 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2092 /* These conflict with other cards! */
2093 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2094 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2097 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2099 static struct pcmcia_driver smc91c92_cs_driver = {
2100 .owner = THIS_MODULE,
2102 .name = "smc91c92_cs",
2104 .probe = smc91c92_probe,
2105 .remove = smc91c92_detach,
2106 .id_table = smc91c92_ids,
2107 .suspend = smc91c92_suspend,
2108 .resume = smc91c92_resume,
2111 static int __init init_smc91c92_cs(void)
2113 return pcmcia_register_driver(&smc91c92_cs_driver);
2116 static void __exit exit_smc91c92_cs(void)
2118 pcmcia_unregister_driver(&smc91c92_cs_driver);
2121 module_init(init_smc91c92_cs);
2122 module_exit(exit_smc91c92_cs);