1 /*======================================================================
3 A PCMCIA ethernet driver for NS8390-based cards
5 This driver supports the D-Link DE-650 and Linksys EthernetCard
6 cards, the newer D-Link and Linksys combo cards, Accton EN2212
7 cards, the RPTI EP400, and the PreMax PE-200 in non-shared-memory
8 mode, and the IBM Credit Card Adapter, the NE4100, the Thomas
9 Conrad ethernet card, and the Kingston KNE-PCM/x in shared-memory
10 mode. It will also handle the Socket EA card in either mode.
12 Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
14 pcnet_cs.c 1.153 2003/11/09 18:53:09
16 The network driver code is based on Donald Becker's NE2000 code:
18 Written 1992,1993 by Donald Becker.
19 Copyright 1993 United States Government as represented by the
20 Director, National Security Agency. This software may be used and
21 distributed according to the terms of the GNU General Public License,
22 incorporated herein by reference.
23 Donald Becker may be reached at becker@scyld.com
25 Based also on Keith Moore's changes to Don Becker's code, for IBM
26 CCAE support. Drivers merged back together, and shared-memory
27 Socket EA support added, by Ken Raeburn, September 1995.
29 ======================================================================*/
31 #include <linux/kernel.h>
32 #include <linux/module.h>
33 #include <linux/init.h>
34 #include <linux/ptrace.h>
35 #include <linux/slab.h>
36 #include <linux/string.h>
37 #include <linux/timer.h>
38 #include <linux/delay.h>
39 #include <linux/ethtool.h>
40 #include <linux/netdevice.h>
41 #include <../drivers/net/8390.h>
43 #include <pcmcia/version.h>
44 #include <pcmcia/cs_types.h>
45 #include <pcmcia/cs.h>
46 #include <pcmcia/cistpl.h>
47 #include <pcmcia/ciscode.h>
48 #include <pcmcia/ds.h>
49 #include <pcmcia/cisreg.h>
52 #include <asm/system.h>
53 #include <asm/byteorder.h>
54 #include <asm/uaccess.h>
56 #define PCNET_CMD 0x00
57 #define PCNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */
58 #define PCNET_RESET 0x1f /* Issue a read to reset, a write to clear. */
59 #define PCNET_MISC 0x18 /* For IBM CCAE and Socket EA cards */
61 #define PCNET_START_PG 0x40 /* First page of TX buffer */
62 #define PCNET_STOP_PG 0x80 /* Last page +1 of RX ring */
64 /* Socket EA cards have a larger packet buffer */
65 #define SOCKET_START_PG 0x01
66 #define SOCKET_STOP_PG 0xff
68 #define PCNET_RDC_TIMEOUT (2*HZ/100) /* Max wait in jiffies for Tx RDC */
70 static char *if_names[] = { "auto", "10baseT", "10base2"};
73 static int pc_debug = PCMCIA_DEBUG;
74 module_param(pc_debug, int, 0);
75 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
76 static char *version =
77 "pcnet_cs.c 1.153 2003/11/09 18:53:09 (David Hinds)";
79 #define DEBUG(n, args...)
82 /*====================================================================*/
84 /* Module parameters */
86 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
87 MODULE_DESCRIPTION("NE2000 compatible PCMCIA ethernet driver");
88 MODULE_LICENSE("GPL");
90 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
92 INT_MODULE_PARM(if_port, 1); /* Transceiver type */
93 INT_MODULE_PARM(use_big_buf, 1); /* use 64K packet buffer? */
94 INT_MODULE_PARM(mem_speed, 0); /* shared mem speed, in ns */
95 INT_MODULE_PARM(delay_output, 0); /* pause after xmit? */
96 INT_MODULE_PARM(delay_time, 4); /* in usec */
97 INT_MODULE_PARM(use_shmem, -1); /* use shared memory? */
98 INT_MODULE_PARM(full_duplex, 0); /* full duplex? */
100 /* Ugh! Let the user hardwire the hardware address for queer cards */
101 static int hw_addr[6] = { 0, /* ... */ };
102 module_param_array(hw_addr, int, NULL, 0);
104 /*====================================================================*/
106 static void mii_phy_probe(struct net_device *dev);
107 static void pcnet_config(dev_link_t *link);
108 static void pcnet_release(dev_link_t *link);
109 static int pcnet_event(event_t event, int priority,
110 event_callback_args_t *args);
111 static int pcnet_open(struct net_device *dev);
112 static int pcnet_close(struct net_device *dev);
113 static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
114 static struct ethtool_ops netdev_ethtool_ops;
115 static irqreturn_t ei_irq_wrapper(int irq, void *dev_id, struct pt_regs *regs);
116 static void ei_watchdog(u_long arg);
117 static void pcnet_reset_8390(struct net_device *dev);
118 static int set_config(struct net_device *dev, struct ifmap *map);
119 static int setup_shmem_window(dev_link_t *link, int start_pg,
120 int stop_pg, int cm_offset);
121 static int setup_dma_config(dev_link_t *link, int start_pg,
124 static dev_link_t *pcnet_attach(void);
125 static void pcnet_detach(dev_link_t *);
127 static dev_info_t dev_info = "pcnet_cs";
128 static dev_link_t *dev_list;
130 /*====================================================================*/
132 typedef struct hw_info_t {
138 #define DELAY_OUTPUT 0x01
139 #define HAS_MISC_REG 0x02
140 #define USE_BIG_BUF 0x04
141 #define HAS_IBM_MISC 0x08
142 #define IS_DL10019 0x10
143 #define IS_DL10022 0x20
145 #define USE_SHMEM 0x80 /* autodetected */
147 #define AM79C9XX_HOME_PHY 0x00006B90 /* HomePNA PHY */
148 #define AM79C9XX_ETH_PHY 0x00006B70 /* 10baseT PHY */
149 #define MII_PHYID_REV_MASK 0xfffffff0
150 #define MII_PHYID_REG1 0x02
151 #define MII_PHYID_REG2 0x03
153 static hw_info_t hw_info[] = {
154 { /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT },
155 { /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 },
156 { /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 },
157 { /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94,
158 DELAY_OUTPUT | HAS_IBM_MISC },
159 { /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 },
160 { /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 },
161 { /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 },
162 { /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 },
163 { /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 },
164 { /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 },
165 { /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48,
166 HAS_MISC_REG | HAS_IBM_MISC },
167 { /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 },
168 { /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 },
169 { /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a,
170 HAS_MISC_REG | HAS_IBM_MISC },
171 { /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac,
172 HAS_MISC_REG | HAS_IBM_MISC },
173 { /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29,
174 HAS_MISC_REG | HAS_IBM_MISC },
175 { /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a,
176 HAS_MISC_REG | HAS_IBM_MISC },
177 { /* IBM FME */ 0x0374, 0x00, 0x04, 0xac,
178 HAS_MISC_REG | HAS_IBM_MISC },
179 { /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87,
180 HAS_MISC_REG | HAS_IBM_MISC },
181 { /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17,
182 HAS_MISC_REG | HAS_IBM_MISC },
183 { /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8,
184 HAS_MISC_REG | HAS_IBM_MISC },
185 { /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0,
186 HAS_MISC_REG | HAS_IBM_MISC },
187 { /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0,
188 HAS_MISC_REG | HAS_IBM_MISC },
189 { /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 },
190 { /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 },
191 { /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0,
192 HAS_MISC_REG | HAS_IBM_MISC },
193 { /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f,
194 HAS_MISC_REG | HAS_IBM_MISC },
195 { /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 },
196 { /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 },
197 { /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 },
198 { /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 },
199 { /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65,
200 HAS_MISC_REG | HAS_IBM_MISC },
201 { /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45,
202 HAS_MISC_REG | HAS_IBM_MISC },
203 { /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 },
204 { /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 },
205 { /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 },
206 { /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b,
207 DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF },
208 { /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 },
209 { /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 },
210 { /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 },
211 { /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 },
212 { /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 }
215 #define NR_INFO (sizeof(hw_info)/sizeof(hw_info_t))
217 static hw_info_t default_info = { 0, 0, 0, 0, 0 };
218 static hw_info_t dl10019_info = { 0, 0, 0, 0, IS_DL10019|HAS_MII };
219 static hw_info_t dl10022_info = { 0, 0, 0, 0, IS_DL10022|HAS_MII };
221 typedef struct pcnet_dev_t {
226 struct timer_list watchdog;
227 int stale, fast_poll;
229 u_char eth_phy, pna_phy;
234 static inline pcnet_dev_t *PRIV(struct net_device *dev)
236 char *p = netdev_priv(dev);
237 return (pcnet_dev_t *)(p + sizeof(struct ei_device));
240 /*======================================================================
242 pcnet_attach() creates an "instance" of the driver, allocating
243 local data structures for one device. The device is registered
246 ======================================================================*/
248 static dev_link_t *pcnet_attach(void)
252 struct net_device *dev;
253 client_reg_t client_reg;
256 DEBUG(0, "pcnet_attach()\n");
258 /* Create new ethernet device */
259 dev = __alloc_ei_netdev(sizeof(pcnet_dev_t));
260 if (!dev) return NULL;
265 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
266 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
267 link->conf.Attributes = CONF_ENABLE_IRQ;
268 link->conf.IntType = INT_MEMORY_AND_IO;
270 SET_MODULE_OWNER(dev);
271 dev->open = &pcnet_open;
272 dev->stop = &pcnet_close;
273 dev->set_config = &set_config;
275 /* Register with Card Services */
276 link->next = dev_list;
278 client_reg.dev_info = &dev_info;
279 client_reg.EventMask =
280 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
281 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
282 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
283 client_reg.event_handler = &pcnet_event;
284 client_reg.Version = 0x0210;
285 client_reg.event_callback_args.client_data = link;
286 ret = pcmcia_register_client(&link->handle, &client_reg);
287 if (ret != CS_SUCCESS) {
288 cs_error(link->handle, RegisterClient, ret);
296 /*======================================================================
298 This deletes a driver "instance". The device is de-registered
299 with Card Services. If it has been released, all local data
300 structures are freed. Otherwise, the structures will be freed
301 when the device is released.
303 ======================================================================*/
305 static void pcnet_detach(dev_link_t *link)
307 struct net_device *dev = link->priv;
310 DEBUG(0, "pcnet_detach(0x%p)\n", link);
312 /* Locate device structure */
313 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
314 if (*linkp == link) break;
319 unregister_netdev(dev);
321 if (link->state & DEV_CONFIG)
325 pcmcia_deregister_client(link->handle);
327 /* Unlink device structure, free bits */
332 /*======================================================================
334 This probes for a card's hardware address, for card types that
335 encode this information in their CIS.
337 ======================================================================*/
339 static hw_info_t *get_hwinfo(dev_link_t *link)
341 struct net_device *dev = link->priv;
344 u_char __iomem *base, *virt;
347 /* Allocate a small memory window */
348 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
349 req.Base = 0; req.Size = 0;
351 i = pcmcia_request_window(&link->handle, &req, &link->win);
352 if (i != CS_SUCCESS) {
353 cs_error(link->handle, RequestWindow, i);
357 virt = ioremap(req.Base, req.Size);
359 for (i = 0; i < NR_INFO; i++) {
360 mem.CardOffset = hw_info[i].offset & ~(req.Size-1);
361 pcmcia_map_mem_page(link->win, &mem);
362 base = &virt[hw_info[i].offset & (req.Size-1)];
363 if ((readb(base+0) == hw_info[i].a0) &&
364 (readb(base+2) == hw_info[i].a1) &&
365 (readb(base+4) == hw_info[i].a2))
369 for (j = 0; j < 6; j++)
370 dev->dev_addr[j] = readb(base + (j<<1));
374 j = pcmcia_release_window(link->win);
376 cs_error(link->handle, ReleaseWindow, j);
377 return (i < NR_INFO) ? hw_info+i : NULL;
380 /*======================================================================
382 This probes for a card's hardware address by reading the PROM.
383 It checks the address against a list of known types, then falls
384 back to a simple NE2000 clone signature check.
386 ======================================================================*/
388 static hw_info_t *get_prom(dev_link_t *link)
390 struct net_device *dev = link->priv;
391 kio_addr_t ioaddr = dev->base_addr;
395 /* This is lifted straight from drivers/net/ne.c */
397 u_char value, offset;
399 {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
400 {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */
401 {0x00, EN0_RCNTLO}, /* Clear the count regs. */
403 {0x00, EN0_IMR}, /* Mask completion irq. */
405 {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */
406 {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */
409 {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */
411 {E8390_RREAD+E8390_START, E8390_CMD},
414 pcnet_reset_8390(dev);
417 for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++)
418 outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);
420 for (i = 0; i < 32; i++)
421 prom[i] = inb(ioaddr + PCNET_DATAPORT);
422 for (i = 0; i < NR_INFO; i++) {
423 if ((prom[0] == hw_info[i].a0) &&
424 (prom[2] == hw_info[i].a1) &&
425 (prom[4] == hw_info[i].a2))
428 if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) {
429 for (j = 0; j < 6; j++)
430 dev->dev_addr[j] = prom[j<<1];
431 return (i < NR_INFO) ? hw_info+i : &default_info;
436 /*======================================================================
438 For DL10019 based cards, like the Linksys EtherFast
440 ======================================================================*/
442 static hw_info_t *get_dl10019(dev_link_t *link)
444 struct net_device *dev = link->priv;
448 for (sum = 0, i = 0x14; i < 0x1c; i++)
449 sum += inb_p(dev->base_addr + i);
452 for (i = 0; i < 6; i++)
453 dev->dev_addr[i] = inb_p(dev->base_addr + 0x14 + i);
454 i = inb(dev->base_addr + 0x1f);
455 return ((i == 0x91)||(i == 0x99)) ? &dl10022_info : &dl10019_info;
458 /*======================================================================
460 For Asix AX88190 based cards
462 ======================================================================*/
464 static hw_info_t *get_ax88190(dev_link_t *link)
466 struct net_device *dev = link->priv;
467 kio_addr_t ioaddr = dev->base_addr;
470 /* Not much of a test, but the alternatives are messy */
471 if (link->conf.ConfigBase != 0x03c0)
474 outb_p(0x01, ioaddr + EN0_DCFG); /* Set word-wide access. */
475 outb_p(0x00, ioaddr + EN0_RSARLO); /* DMA starting at 0x0400. */
476 outb_p(0x04, ioaddr + EN0_RSARHI);
477 outb_p(E8390_RREAD+E8390_START, ioaddr + E8390_CMD);
479 for (i = 0; i < 6; i += 2) {
480 j = inw(ioaddr + PCNET_DATAPORT);
481 dev->dev_addr[i] = j & 0xff;
482 dev->dev_addr[i+1] = j >> 8;
484 printk(KERN_NOTICE "pcnet_cs: this is an AX88190 card!\n");
485 printk(KERN_NOTICE "pcnet_cs: use axnet_cs instead.\n");
489 /*======================================================================
491 This should be totally unnecessary... but when we can't figure
492 out the hardware address any other way, we'll let the user hard
493 wire it when the module is initialized.
495 ======================================================================*/
497 static hw_info_t *get_hwired(dev_link_t *link)
499 struct net_device *dev = link->priv;
502 for (i = 0; i < 6; i++)
503 if (hw_addr[i] != 0) break;
507 for (i = 0; i < 6; i++)
508 dev->dev_addr[i] = hw_addr[i];
510 return &default_info;
513 /*======================================================================
515 pcnet_config() is scheduled to run after a CARD_INSERTION event
516 is received, to configure the PCMCIA socket, and to make the
517 ethernet device available to the system.
519 ======================================================================*/
521 #define CS_CHECK(fn, ret) \
522 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
524 static int try_io_port(dev_link_t *link)
527 if (link->io.NumPorts1 == 32) {
528 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
529 if (link->io.NumPorts2 > 0) {
530 /* for master/slave multifunction cards */
531 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
532 link->irq.Attributes =
533 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
536 /* This should be two 16-port windows */
537 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
538 link->io.Attributes2 = IO_DATA_PATH_WIDTH_16;
540 if (link->io.BasePort1 == 0) {
541 link->io.IOAddrLines = 16;
542 for (j = 0; j < 0x400; j += 0x20) {
543 link->io.BasePort1 = j ^ 0x300;
544 link->io.BasePort2 = (j ^ 0x300) + 0x10;
545 ret = pcmcia_request_io(link->handle, &link->io);
546 if (ret == CS_SUCCESS) return ret;
550 return pcmcia_request_io(link->handle, &link->io);
554 static void pcnet_config(dev_link_t *link)
556 client_handle_t handle = link->handle;
557 struct net_device *dev = link->priv;
558 pcnet_dev_t *info = PRIV(dev);
561 int i, last_ret, last_fn, start_pg, stop_pg, cm_offset;
562 int manfid = 0, prodid = 0, has_shmem = 0;
567 DEBUG(0, "pcnet_config(0x%p)\n", link);
569 tuple.Attributes = 0;
570 tuple.TupleData = (cisdata_t *)buf;
571 tuple.TupleDataMax = sizeof(buf);
572 tuple.TupleOffset = 0;
573 tuple.DesiredTuple = CISTPL_CONFIG;
574 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
575 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
576 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
577 link->conf.ConfigBase = parse.config.base;
578 link->conf.Present = parse.config.rmask[0];
581 link->state |= DEV_CONFIG;
583 /* Look up current Vcc */
584 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf));
585 link->conf.Vcc = conf.Vcc;
587 tuple.DesiredTuple = CISTPL_MANFID;
588 tuple.Attributes = TUPLE_RETURN_COMMON;
589 if ((pcmcia_get_first_tuple(handle, &tuple) == CS_SUCCESS) &&
590 (pcmcia_get_tuple_data(handle, &tuple) == CS_SUCCESS)) {
591 manfid = le16_to_cpu(buf[0]);
592 prodid = le16_to_cpu(buf[1]);
595 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
596 tuple.Attributes = 0;
597 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
598 while (last_ret == CS_SUCCESS) {
599 cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
600 cistpl_io_t *io = &(parse.cftable_entry.io);
602 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
603 pcmcia_parse_tuple(handle, &tuple, &parse) != 0 ||
604 cfg->index == 0 || cfg->io.nwin == 0)
607 link->conf.ConfigIndex = cfg->index;
608 /* For multifunction cards, by convention, we configure the
609 network function with window 0, and serial with window 1 */
611 i = (io->win[1].len > io->win[0].len);
612 link->io.BasePort2 = io->win[1-i].base;
613 link->io.NumPorts2 = io->win[1-i].len;
615 i = link->io.NumPorts2 = 0;
617 has_shmem = ((cfg->mem.nwin == 1) &&
618 (cfg->mem.win[0].len >= 0x4000));
619 link->io.BasePort1 = io->win[i].base;
620 link->io.NumPorts1 = io->win[i].len;
621 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
622 if (link->io.NumPorts1 + link->io.NumPorts2 >= 32) {
623 last_ret = try_io_port(link);
624 if (last_ret == CS_SUCCESS) break;
627 last_ret = pcmcia_get_next_tuple(handle, &tuple);
629 if (last_ret != CS_SUCCESS) {
630 cs_error(handle, RequestIO, last_ret);
634 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
636 if (link->io.NumPorts2 == 8) {
637 link->conf.Attributes |= CONF_ENABLE_SPKR;
638 link->conf.Status = CCSR_AUDIO_ENA;
640 if ((manfid == MANFID_IBM) &&
641 (prodid == PRODID_IBM_HOME_AND_AWAY))
642 link->conf.ConfigIndex |= 0x10;
644 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
645 dev->irq = link->irq.AssignedIRQ;
646 dev->base_addr = link->io.BasePort1;
647 if (info->flags & HAS_MISC_REG) {
648 if ((if_port == 1) || (if_port == 2))
649 dev->if_port = if_port;
651 printk(KERN_NOTICE "pcnet_cs: invalid if_port requested\n");
656 hw_info = get_hwinfo(link);
658 hw_info = get_prom(link);
660 hw_info = get_dl10019(link);
662 hw_info = get_ax88190(link);
664 hw_info = get_hwired(link);
666 if (hw_info == NULL) {
667 printk(KERN_NOTICE "pcnet_cs: unable to read hardware net"
668 " address for io base %#3lx\n", dev->base_addr);
672 info->flags = hw_info->flags;
673 /* Check for user overrides */
674 info->flags |= (delay_output) ? DELAY_OUTPUT : 0;
675 if ((manfid == MANFID_SOCKET) &&
676 ((prodid == PRODID_SOCKET_LPE) ||
677 (prodid == PRODID_SOCKET_LPE_CF) ||
678 (prodid == PRODID_SOCKET_EIO)))
679 info->flags &= ~USE_BIG_BUF;
681 info->flags &= ~USE_BIG_BUF;
683 if (info->flags & USE_BIG_BUF) {
684 start_pg = SOCKET_START_PG;
685 stop_pg = SOCKET_STOP_PG;
688 start_pg = PCNET_START_PG;
689 stop_pg = PCNET_STOP_PG;
693 /* has_shmem is ignored if use_shmem != -1 */
694 if ((use_shmem == 0) || (!has_shmem && (use_shmem == -1)) ||
695 (setup_shmem_window(link, start_pg, stop_pg, cm_offset) != 0))
696 setup_dma_config(link, start_pg, stop_pg);
698 ei_status.name = "NE2000";
699 ei_status.word16 = 1;
700 ei_status.reset_8390 = &pcnet_reset_8390;
702 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
704 if (info->flags & (IS_DL10019|IS_DL10022)) {
705 u_char id = inb(dev->base_addr + 0x1a);
706 dev->do_ioctl = &ei_ioctl;
708 if ((id == 0x30) && !info->pna_phy && (info->eth_phy == 4))
712 link->dev = &info->node;
713 link->state &= ~DEV_CONFIG_PENDING;
714 SET_NETDEV_DEV(dev, &handle_to_dev(handle));
716 #ifdef CONFIG_NET_POLL_CONTROLLER
717 dev->poll_controller = ei_poll;
720 if (register_netdev(dev) != 0) {
721 printk(KERN_NOTICE "pcnet_cs: register_netdev() failed\n");
726 strcpy(info->node.dev_name, dev->name);
728 if (info->flags & (IS_DL10019|IS_DL10022)) {
729 u_char id = inb(dev->base_addr + 0x1a);
730 printk(KERN_INFO "%s: NE2000 (DL100%d rev %02x): ",
731 dev->name, ((info->flags & IS_DL10022) ? 22 : 19), id);
735 printk(KERN_INFO "%s: NE2000 Compatible: ", dev->name);
737 printk("io %#3lx, irq %d,", dev->base_addr, dev->irq);
738 if (info->flags & USE_SHMEM)
739 printk (" mem %#5lx,", dev->mem_start);
740 if (info->flags & HAS_MISC_REG)
741 printk(" %s xcvr,", if_names[dev->if_port]);
743 for (i = 0; i < 6; i++)
744 printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
748 cs_error(link->handle, last_fn, last_ret);
751 link->state &= ~DEV_CONFIG_PENDING;
755 /*======================================================================
757 After a card is removed, pcnet_release() will unregister the net
758 device, and release the PCMCIA configuration. If the device is
759 still open, this will be postponed until it is closed.
761 ======================================================================*/
763 static void pcnet_release(dev_link_t *link)
765 pcnet_dev_t *info = PRIV(link->priv);
767 DEBUG(0, "pcnet_release(0x%p)\n", link);
769 if (info->flags & USE_SHMEM) {
771 pcmcia_release_window(link->win);
773 pcmcia_release_configuration(link->handle);
774 pcmcia_release_io(link->handle, &link->io);
775 pcmcia_release_irq(link->handle, &link->irq);
777 link->state &= ~DEV_CONFIG;
780 /*======================================================================
782 The card status event handler. Mostly, this schedules other
783 stuff to run after an event is received. A CARD_REMOVAL event
784 also sets some flags to discourage the net drivers from trying
785 to talk to the card any more.
787 ======================================================================*/
789 static int pcnet_event(event_t event, int priority,
790 event_callback_args_t *args)
792 dev_link_t *link = args->client_data;
793 struct net_device *dev = link->priv;
795 DEBUG(2, "pcnet_event(0x%06x)\n", event);
798 case CS_EVENT_CARD_REMOVAL:
799 link->state &= ~DEV_PRESENT;
800 if (link->state & DEV_CONFIG)
801 netif_device_detach(dev);
803 case CS_EVENT_CARD_INSERTION:
804 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
807 case CS_EVENT_PM_SUSPEND:
808 link->state |= DEV_SUSPEND;
809 /* Fall through... */
810 case CS_EVENT_RESET_PHYSICAL:
811 if (link->state & DEV_CONFIG) {
813 netif_device_detach(dev);
814 pcmcia_release_configuration(link->handle);
817 case CS_EVENT_PM_RESUME:
818 link->state &= ~DEV_SUSPEND;
819 /* Fall through... */
820 case CS_EVENT_CARD_RESET:
821 if (link->state & DEV_CONFIG) {
822 pcmcia_request_configuration(link->handle, &link->conf);
824 pcnet_reset_8390(dev);
826 netif_device_attach(dev);
834 /*======================================================================
836 MII interface support for DL10019 and DL10022 based cards
838 On the DL10019, the MII IO direction bit is 0x10; on the DL10022
839 it is 0x20. Setting both bits seems to work on both card types.
841 ======================================================================*/
843 #define DLINK_GPIO 0x1c
844 #define DLINK_DIAG 0x1d
845 #define DLINK_EEPROM 0x1e
847 #define MDIO_SHIFT_CLK 0x80
848 #define MDIO_DATA_OUT 0x40
849 #define MDIO_DIR_WRITE 0x30
850 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
851 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
852 #define MDIO_DATA_READ 0x10
853 #define MDIO_MASK 0x0f
855 static void mdio_sync(kio_addr_t addr)
857 int bits, mask = inb(addr) & MDIO_MASK;
858 for (bits = 0; bits < 32; bits++) {
859 outb(mask | MDIO_DATA_WRITE1, addr);
860 outb(mask | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
864 static int mdio_read(kio_addr_t addr, int phy_id, int loc)
866 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
867 int i, retval = 0, mask = inb(addr) & MDIO_MASK;
870 for (i = 13; i >= 0; i--) {
871 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
872 outb(mask | dat, addr);
873 outb(mask | dat | MDIO_SHIFT_CLK, addr);
875 for (i = 19; i > 0; i--) {
877 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
878 outb(mask | MDIO_SHIFT_CLK, addr);
880 return (retval>>1) & 0xffff;
883 static void mdio_write(kio_addr_t addr, int phy_id, int loc, int value)
885 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
886 int i, mask = inb(addr) & MDIO_MASK;
889 for (i = 31; i >= 0; i--) {
890 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
891 outb(mask | dat, addr);
892 outb(mask | dat | MDIO_SHIFT_CLK, addr);
894 for (i = 1; i >= 0; i--) {
896 outb(mask | MDIO_SHIFT_CLK, addr);
900 static void mdio_reset(kio_addr_t addr, int phy_id)
909 /*======================================================================
911 EEPROM access routines for DL10019 and DL10022 based cards
913 ======================================================================*/
921 #define EE_ADOT 0x01 /* DataOut for ASIC */
922 #define EE_READ_CMD 0x06
924 #define DL19FDUPLX 0x0400 /* DL10019 Full duplex mode */
926 static int read_eeprom(kio_addr_t ioaddr, int location)
929 kio_addr_t ee_addr = ioaddr + DLINK_EEPROM;
930 int read_cmd = location | (EE_READ_CMD << 8);
933 outb(EE_EEP|EE_CS, ee_addr);
935 /* Shift the read command bits out. */
936 for (i = 10; i >= 0; i--) {
937 short dataval = (read_cmd & (1 << i)) ? EE_DO : 0;
938 outb_p(EE_EEP|EE_CS|dataval, ee_addr);
939 outb_p(EE_EEP|EE_CS|dataval|EE_CK, ee_addr);
941 outb(EE_EEP|EE_CS, ee_addr);
943 for (i = 16; i > 0; i--) {
944 outb_p(EE_EEP|EE_CS | EE_CK, ee_addr);
945 retval = (retval << 1) | ((inb(ee_addr) & EE_DI) ? 1 : 0);
946 outb_p(EE_EEP|EE_CS, ee_addr);
949 /* Terminate the EEPROM access. */
955 The internal ASIC registers can be changed by EEPROM READ access
956 with EE_ASIC bit set.
957 In ASIC mode, EE_ADOT is used to output the data to the ASIC.
960 static void write_asic(kio_addr_t ioaddr, int location, short asic_data)
963 kio_addr_t ee_addr = ioaddr + DLINK_EEPROM;
965 int read_cmd = location | (EE_READ_CMD << 8);
967 asic_data |= read_eeprom(ioaddr, location);
970 outb(EE_ASIC|EE_CS|EE_DI, ee_addr);
972 read_cmd = read_cmd >> 1;
974 /* Shift the read command bits out. */
975 for (i = 9; i >= 0; i--) {
976 dataval = (read_cmd & (1 << i)) ? EE_DO : 0;
977 outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr);
978 outb_p(EE_ASIC|EE_CS|EE_DI|dataval|EE_CK, ee_addr);
979 outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr);
982 outb(EE_ASIC|EE_CS, ee_addr);
983 outb(EE_ASIC|EE_CS|EE_CK, ee_addr);
984 outb(EE_ASIC|EE_CS, ee_addr);
986 for (i = 15; i >= 0; i--) {
987 dataval = (asic_data & (1 << i)) ? EE_ADOT : 0;
988 outb_p(EE_ASIC|EE_CS|dataval, ee_addr);
989 outb_p(EE_ASIC|EE_CS|dataval|EE_CK, ee_addr);
990 outb_p(EE_ASIC|EE_CS|dataval, ee_addr);
993 /* Terminate the ASIC access. */
994 outb(EE_ASIC|EE_DI, ee_addr);
995 outb(EE_ASIC|EE_DI| EE_CK, ee_addr);
996 outb(EE_ASIC|EE_DI, ee_addr);
1001 /*====================================================================*/
1003 static void set_misc_reg(struct net_device *dev)
1005 kio_addr_t nic_base = dev->base_addr;
1006 pcnet_dev_t *info = PRIV(dev);
1009 if (info->flags & HAS_MISC_REG) {
1010 tmp = inb_p(nic_base + PCNET_MISC) & ~3;
1011 if (dev->if_port == 2)
1013 if (info->flags & USE_BIG_BUF)
1015 if (info->flags & HAS_IBM_MISC)
1017 outb_p(tmp, nic_base + PCNET_MISC);
1019 if (info->flags & IS_DL10022) {
1020 if (info->flags & HAS_MII) {
1021 mdio_reset(nic_base + DLINK_GPIO, info->eth_phy);
1022 /* Restart MII autonegotiation */
1023 mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000);
1024 mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200);
1025 info->mii_reset = jiffies;
1027 outb(full_duplex ? 4 : 0, nic_base + DLINK_DIAG);
1032 /*====================================================================*/
1034 static void mii_phy_probe(struct net_device *dev)
1036 pcnet_dev_t *info = PRIV(dev);
1037 kio_addr_t mii_addr = dev->base_addr + DLINK_GPIO;
1041 for (i = 31; i >= 0; i--) {
1042 tmp = mdio_read(mii_addr, i, 1);
1043 if ((tmp == 0) || (tmp == 0xffff))
1045 tmp = mdio_read(mii_addr, i, MII_PHYID_REG1);
1047 phyid |= mdio_read(mii_addr, i, MII_PHYID_REG2);
1048 phyid &= MII_PHYID_REV_MASK;
1049 DEBUG(0, "%s: MII at %d is 0x%08x\n", dev->name, i, phyid);
1050 if (phyid == AM79C9XX_HOME_PHY) {
1052 } else if (phyid != AM79C9XX_ETH_PHY) {
1058 static int pcnet_open(struct net_device *dev)
1060 pcnet_dev_t *info = PRIV(dev);
1061 dev_link_t *link = &info->link;
1063 DEBUG(2, "pcnet_open('%s')\n", dev->name);
1071 request_irq(dev->irq, ei_irq_wrapper, SA_SHIRQ, dev_info, dev);
1073 info->phy_id = info->eth_phy;
1074 info->link_status = 0x00;
1075 init_timer(&info->watchdog);
1076 info->watchdog.function = &ei_watchdog;
1077 info->watchdog.data = (u_long)dev;
1078 info->watchdog.expires = jiffies + HZ;
1079 add_timer(&info->watchdog);
1081 return ei_open(dev);
1084 /*====================================================================*/
1086 static int pcnet_close(struct net_device *dev)
1088 pcnet_dev_t *info = PRIV(dev);
1089 dev_link_t *link = &info->link;
1091 DEBUG(2, "pcnet_close('%s')\n", dev->name);
1094 free_irq(dev->irq, dev);
1097 netif_stop_queue(dev);
1098 del_timer_sync(&info->watchdog);
1103 /*======================================================================
1105 Hard reset the card. This used to pause for the same period that
1106 a 8390 reset command required, but that shouldn't be necessary.
1108 ======================================================================*/
1110 static void pcnet_reset_8390(struct net_device *dev)
1112 kio_addr_t nic_base = dev->base_addr;
1115 ei_status.txing = ei_status.dmaing = 0;
1117 outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, nic_base + E8390_CMD);
1119 outb(inb(nic_base + PCNET_RESET), nic_base + PCNET_RESET);
1121 for (i = 0; i < 100; i++) {
1122 if ((inb_p(nic_base+EN0_ISR) & ENISR_RESET) != 0)
1126 outb_p(ENISR_RESET, nic_base + EN0_ISR); /* Ack intr. */
1129 printk(KERN_ERR "%s: pcnet_reset_8390() did not complete.\n",
1133 } /* pcnet_reset_8390 */
1135 /*====================================================================*/
1137 static int set_config(struct net_device *dev, struct ifmap *map)
1139 pcnet_dev_t *info = PRIV(dev);
1140 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1141 if (!(info->flags & HAS_MISC_REG))
1143 else if ((map->port < 1) || (map->port > 2))
1145 dev->if_port = map->port;
1146 printk(KERN_INFO "%s: switched to %s port\n",
1147 dev->name, if_names[dev->if_port]);
1148 NS8390_init(dev, 1);
1153 /*====================================================================*/
1155 static irqreturn_t ei_irq_wrapper(int irq, void *dev_id, struct pt_regs *regs)
1157 struct net_device *dev = dev_id;
1158 pcnet_dev_t *info = PRIV(dev);
1159 irqreturn_t ret = ei_interrupt(irq, dev_id, regs);
1161 if (ret == IRQ_HANDLED)
1166 static void ei_watchdog(u_long arg)
1168 struct net_device *dev = (struct net_device *)arg;
1169 pcnet_dev_t *info = PRIV(dev);
1170 kio_addr_t nic_base = dev->base_addr;
1171 kio_addr_t mii_addr = nic_base + DLINK_GPIO;
1174 if (!netif_device_present(dev)) goto reschedule;
1176 /* Check for pending interrupt with expired latency timer: with
1177 this, we can limp along even if the interrupt is blocked */
1178 outb_p(E8390_NODMA+E8390_PAGE0, nic_base + E8390_CMD);
1179 if (info->stale++ && (inb_p(nic_base + EN0_ISR) & ENISR_ALL)) {
1180 if (!info->fast_poll)
1181 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1182 ei_irq_wrapper(dev->irq, dev, NULL);
1183 info->fast_poll = HZ;
1185 if (info->fast_poll) {
1187 info->watchdog.expires = jiffies + 1;
1188 add_timer(&info->watchdog);
1192 if (!(info->flags & HAS_MII))
1195 mdio_read(mii_addr, info->phy_id, 1);
1196 link = mdio_read(mii_addr, info->phy_id, 1);
1197 if (!link || (link == 0xffff)) {
1198 if (info->eth_phy) {
1199 info->phy_id = info->eth_phy = 0;
1201 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1202 info->flags &= ~HAS_MII;
1208 if (link != info->link_status) {
1209 u_short p = mdio_read(mii_addr, info->phy_id, 5);
1210 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1211 (link) ? "found" : "lost");
1212 if (link && (info->flags & IS_DL10022)) {
1213 /* Disable collision detection on full duplex links */
1214 outb((p & 0x0140) ? 4 : 0, nic_base + DLINK_DIAG);
1215 } else if (link && (info->flags & IS_DL10019)) {
1216 /* Disable collision detection on full duplex links */
1217 write_asic(dev->base_addr, 4, (p & 0x140) ? DL19FDUPLX : 0);
1220 if (info->phy_id == info->eth_phy) {
1222 printk(KERN_INFO "%s: autonegotiation complete: "
1223 "%sbaseT-%cD selected\n", dev->name,
1224 ((p & 0x0180) ? "100" : "10"),
1225 ((p & 0x0140) ? 'F' : 'H'));
1227 printk(KERN_INFO "%s: link partner did not "
1228 "autonegotiate\n", dev->name);
1230 NS8390_init(dev, 1);
1232 info->link_status = link;
1234 if (info->pna_phy && time_after(jiffies, info->mii_reset + 6*HZ)) {
1235 link = mdio_read(mii_addr, info->eth_phy, 1) & 0x0004;
1236 if (((info->phy_id == info->pna_phy) && link) ||
1237 ((info->phy_id != info->pna_phy) && !link)) {
1238 /* isolate this MII and try flipping to the other one */
1239 mdio_write(mii_addr, info->phy_id, 0, 0x0400);
1240 info->phy_id ^= info->pna_phy ^ info->eth_phy;
1241 printk(KERN_INFO "%s: switched to %s transceiver\n", dev->name,
1242 (info->phy_id == info->eth_phy) ? "ethernet" : "PNA");
1243 mdio_write(mii_addr, info->phy_id, 0,
1244 (info->phy_id == info->eth_phy) ? 0x1000 : 0);
1245 info->link_status = 0;
1246 info->mii_reset = jiffies;
1251 info->watchdog.expires = jiffies + HZ;
1252 add_timer(&info->watchdog);
1255 /*====================================================================*/
1257 static void netdev_get_drvinfo(struct net_device *dev,
1258 struct ethtool_drvinfo *info)
1260 strcpy(info->driver, "pcnet_cs");
1263 static struct ethtool_ops netdev_ethtool_ops = {
1264 .get_drvinfo = netdev_get_drvinfo,
1267 /*====================================================================*/
1270 static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1272 pcnet_dev_t *info = PRIV(dev);
1273 u16 *data = (u16 *)&rq->ifr_ifru;
1274 kio_addr_t mii_addr = dev->base_addr + DLINK_GPIO;
1277 data[0] = info->phy_id;
1278 case SIOCGMIIREG: /* Read MII PHY register. */
1279 data[3] = mdio_read(mii_addr, data[0], data[1] & 0x1f);
1281 case SIOCSMIIREG: /* Write MII PHY register. */
1282 if (!capable(CAP_NET_ADMIN))
1284 mdio_write(mii_addr, data[0], data[1] & 0x1f, data[2]);
1290 /*====================================================================*/
1292 static void dma_get_8390_hdr(struct net_device *dev,
1293 struct e8390_pkt_hdr *hdr,
1296 kio_addr_t nic_base = dev->base_addr;
1298 if (ei_status.dmaing) {
1299 printk(KERN_NOTICE "%s: DMAing conflict in dma_block_input."
1300 "[DMAstat:%1x][irqlock:%1x]\n",
1301 dev->name, ei_status.dmaing, ei_status.irqlock);
1305 ei_status.dmaing |= 0x01;
1306 outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD);
1307 outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
1308 outb_p(0, nic_base + EN0_RCNTHI);
1309 outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */
1310 outb_p(ring_page, nic_base + EN0_RSARHI);
1311 outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD);
1313 insw(nic_base + PCNET_DATAPORT, hdr,
1314 sizeof(struct e8390_pkt_hdr)>>1);
1315 /* Fix for big endian systems */
1316 hdr->count = le16_to_cpu(hdr->count);
1318 outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
1319 ei_status.dmaing &= ~0x01;
1322 /*====================================================================*/
1324 static void dma_block_input(struct net_device *dev, int count,
1325 struct sk_buff *skb, int ring_offset)
1327 kio_addr_t nic_base = dev->base_addr;
1328 int xfer_count = count;
1329 char *buf = skb->data;
1332 if ((ei_debug > 4) && (count != 4))
1333 printk(KERN_DEBUG "%s: [bi=%d]\n", dev->name, count+4);
1335 if (ei_status.dmaing) {
1336 printk(KERN_NOTICE "%s: DMAing conflict in dma_block_input."
1337 "[DMAstat:%1x][irqlock:%1x]\n",
1338 dev->name, ei_status.dmaing, ei_status.irqlock);
1341 ei_status.dmaing |= 0x01;
1342 outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD);
1343 outb_p(count & 0xff, nic_base + EN0_RCNTLO);
1344 outb_p(count >> 8, nic_base + EN0_RCNTHI);
1345 outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO);
1346 outb_p(ring_offset >> 8, nic_base + EN0_RSARHI);
1347 outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD);
1349 insw(nic_base + PCNET_DATAPORT,buf,count>>1);
1351 buf[count-1] = inb(nic_base + PCNET_DATAPORT), xfer_count++;
1353 /* This was for the ALPHA version only, but enough people have
1354 encountering problems that it is still here. */
1356 if (ei_debug > 4) { /* DMA termination address check... */
1357 int addr, tries = 20;
1359 /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here
1360 -- it's broken for Rx on some cards! */
1361 int high = inb_p(nic_base + EN0_RSARHI);
1362 int low = inb_p(nic_base + EN0_RSARLO);
1363 addr = (high << 8) + low;
1364 if (((ring_offset + xfer_count) & 0xff) == (addr & 0xff))
1366 } while (--tries > 0);
1368 printk(KERN_NOTICE "%s: RX transfer address mismatch,"
1369 "%#4.4x (expected) vs. %#4.4x (actual).\n",
1370 dev->name, ring_offset + xfer_count, addr);
1373 outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
1374 ei_status.dmaing &= ~0x01;
1375 } /* dma_block_input */
1377 /*====================================================================*/
1379 static void dma_block_output(struct net_device *dev, int count,
1380 const u_char *buf, const int start_page)
1382 kio_addr_t nic_base = dev->base_addr;
1383 pcnet_dev_t *info = PRIV(dev);
1391 printk(KERN_DEBUG "%s: [bo=%d]\n", dev->name, count);
1394 /* Round the count up for word writes. Do we need to do this?
1395 What effect will an odd byte count have on the 8390?
1396 I should check someday. */
1399 if (ei_status.dmaing) {
1400 printk(KERN_NOTICE "%s: DMAing conflict in dma_block_output."
1401 "[DMAstat:%1x][irqlock:%1x]\n",
1402 dev->name, ei_status.dmaing, ei_status.irqlock);
1405 ei_status.dmaing |= 0x01;
1406 /* We should already be in page 0, but to be safe... */
1407 outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base+PCNET_CMD);
1413 outb_p(ENISR_RDC, nic_base + EN0_ISR);
1415 /* Now the normal output. */
1416 outb_p(count & 0xff, nic_base + EN0_RCNTLO);
1417 outb_p(count >> 8, nic_base + EN0_RCNTHI);
1418 outb_p(0x00, nic_base + EN0_RSARLO);
1419 outb_p(start_page, nic_base + EN0_RSARHI);
1421 outb_p(E8390_RWRITE+E8390_START, nic_base + PCNET_CMD);
1422 outsw(nic_base + PCNET_DATAPORT, buf, count>>1);
1424 dma_start = jiffies;
1427 /* This was for the ALPHA version only, but enough people have
1428 encountering problems that it is still here. */
1429 if (ei_debug > 4) { /* DMA termination address check... */
1430 int addr, tries = 20;
1432 int high = inb_p(nic_base + EN0_RSARHI);
1433 int low = inb_p(nic_base + EN0_RSARLO);
1434 addr = (high << 8) + low;
1435 if ((start_page << 8) + count == addr)
1437 } while (--tries > 0);
1439 printk(KERN_NOTICE "%s: Tx packet transfer address mismatch,"
1440 "%#4.4x (expected) vs. %#4.4x (actual).\n",
1441 dev->name, (start_page << 8) + count, addr);
1448 while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0)
1449 if (time_after(jiffies, dma_start + PCNET_RDC_TIMEOUT)) {
1450 printk(KERN_NOTICE "%s: timeout waiting for Tx RDC.\n",
1452 pcnet_reset_8390(dev);
1453 NS8390_init(dev, 1);
1457 outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
1458 if (info->flags & DELAY_OUTPUT)
1459 udelay((long)delay_time);
1460 ei_status.dmaing &= ~0x01;
1463 /*====================================================================*/
1465 static int setup_dma_config(dev_link_t *link, int start_pg,
1468 struct net_device *dev = link->priv;
1470 ei_status.tx_start_page = start_pg;
1471 ei_status.rx_start_page = start_pg + TX_PAGES;
1472 ei_status.stop_page = stop_pg;
1474 /* set up block i/o functions */
1475 ei_status.get_8390_hdr = &dma_get_8390_hdr;
1476 ei_status.block_input = &dma_block_input;
1477 ei_status.block_output = &dma_block_output;
1482 /*====================================================================*/
1484 static void copyin(void *dest, void __iomem *src, int c)
1487 u_short __iomem *s = src;
1492 odd = (c & 1); c >>= 1;
1495 do { *d++ = __raw_readw(s++); } while (--c);
1497 /* get last byte by fetching a word and masking */
1499 *((u_char *)d) = readw(s) & 0xff;
1502 static void copyout(void __iomem *dest, const void *src, int c)
1504 u_short __iomem *d = dest;
1505 const u_short *s = src;
1510 odd = (c & 1); c >>= 1;
1513 do { __raw_writew(*s++, d++); } while (--c);
1515 /* copy last byte doing a read-modify-write */
1517 writew((readw(d) & 0xff00) | *(u_char *)s, d);
1520 /*====================================================================*/
1522 static void shmem_get_8390_hdr(struct net_device *dev,
1523 struct e8390_pkt_hdr *hdr,
1526 void __iomem *xfer_start = ei_status.mem + (TX_PAGES<<8)
1528 - (ei_status.rx_start_page << 8);
1530 copyin(hdr, xfer_start, sizeof(struct e8390_pkt_hdr));
1531 /* Fix for big endian systems */
1532 hdr->count = le16_to_cpu(hdr->count);
1535 /*====================================================================*/
1537 static void shmem_block_input(struct net_device *dev, int count,
1538 struct sk_buff *skb, int ring_offset)
1540 void __iomem *xfer_start = ei_status.mem + (TX_PAGES<<8)
1542 - (ei_status.rx_start_page << 8);
1543 char *buf = skb->data;
1545 if (xfer_start + count > (void __iomem *)ei_status.rmem_end) {
1546 /* We must wrap the input move. */
1547 int semi_count = (void __iomem *)ei_status.rmem_end - xfer_start;
1548 copyin(buf, xfer_start, semi_count);
1550 xfer_start = ei_status.mem + (TX_PAGES<<8);
1551 count -= semi_count;
1553 copyin(buf, xfer_start, count);
1556 /*====================================================================*/
1558 static void shmem_block_output(struct net_device *dev, int count,
1559 const u_char *buf, const int start_page)
1561 void __iomem *shmem = ei_status.mem + (start_page << 8);
1562 shmem -= ei_status.tx_start_page << 8;
1563 copyout(shmem, buf, count);
1566 /*====================================================================*/
1568 static int setup_shmem_window(dev_link_t *link, int start_pg,
1569 int stop_pg, int cm_offset)
1571 struct net_device *dev = link->priv;
1572 pcnet_dev_t *info = PRIV(dev);
1575 int i, window_size, offset, last_ret, last_fn;
1577 window_size = (stop_pg - start_pg) << 8;
1578 if (window_size > 32 * 1024)
1579 window_size = 32 * 1024;
1581 /* Make sure it's a power of two. */
1582 while ((window_size & (window_size - 1)) != 0)
1583 window_size += window_size & ~(window_size - 1);
1585 /* Allocate a memory window */
1586 req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
1587 req.Attributes |= WIN_USE_WAIT;
1588 req.Base = 0; req.Size = window_size;
1589 req.AccessSpeed = mem_speed;
1590 CS_CHECK(RequestWindow, pcmcia_request_window(&link->handle, &req, &link->win));
1592 mem.CardOffset = (start_pg << 8) + cm_offset;
1593 offset = mem.CardOffset % window_size;
1594 mem.CardOffset -= offset;
1596 CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
1598 /* Try scribbling on the buffer */
1599 info->base = ioremap(req.Base, window_size);
1600 for (i = 0; i < (TX_PAGES<<8); i += 2)
1601 __raw_writew((i>>1), info->base+offset+i);
1603 for (i = 0; i < (TX_PAGES<<8); i += 2)
1604 if (__raw_readw(info->base+offset+i) != (i>>1)) break;
1605 pcnet_reset_8390(dev);
1606 if (i != (TX_PAGES<<8)) {
1607 iounmap(info->base);
1608 pcmcia_release_window(link->win);
1609 info->base = NULL; link->win = NULL;
1613 ei_status.mem = info->base + offset;
1614 dev->mem_start = (u_long)ei_status.mem;
1615 dev->mem_end = ei_status.rmem_end = (u_long)info->base + req.Size;
1617 ei_status.tx_start_page = start_pg;
1618 ei_status.rx_start_page = start_pg + TX_PAGES;
1619 ei_status.stop_page = start_pg + ((req.Size - offset) >> 8);
1621 /* set up block i/o functions */
1622 ei_status.get_8390_hdr = &shmem_get_8390_hdr;
1623 ei_status.block_input = &shmem_block_input;
1624 ei_status.block_output = &shmem_block_output;
1626 info->flags |= USE_SHMEM;
1630 cs_error(link->handle, last_fn, last_ret);
1635 /*====================================================================*/
1637 static struct pcmcia_driver pcnet_driver = {
1641 .attach = pcnet_attach,
1642 .detach = pcnet_detach,
1643 .owner = THIS_MODULE,
1646 static int __init init_pcnet_cs(void)
1648 return pcmcia_register_driver(&pcnet_driver);
1651 static void __exit exit_pcnet_cs(void)
1653 DEBUG(0, "pcnet_cs: unloading\n");
1654 pcmcia_unregister_driver(&pcnet_driver);
1655 BUG_ON(dev_list != NULL);
1658 module_init(init_pcnet_cs);
1659 module_exit(exit_pcnet_cs);