Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* smc-ultra.c: A SMC Ultra ethernet driver for linux. */ |
2 | /* | |
3 | This is a driver for the SMC Ultra and SMC EtherEZ ISA ethercards. | |
4 | ||
5 | Written 1993-1998 by Donald Becker. | |
6 | ||
7 | Copyright 1993 United States Government as represented by the | |
8 | Director, National Security Agency. | |
9 | ||
10 | This software may be used and distributed according to the terms | |
11 | of the GNU General Public License, incorporated herein by reference. | |
12 | ||
13 | The author may be reached as becker@scyld.com, or C/O | |
14 | Scyld Computing Corporation | |
15 | 410 Severn Ave., Suite 210 | |
16 | Annapolis MD 21403 | |
17 | ||
18 | This driver uses the cards in the 8390-compatible mode. | |
19 | Most of the run-time complexity is handled by the generic code in | |
20 | 8390.c. The code in this file is responsible for | |
21 | ||
22 | ultra_probe() Detecting and initializing the card. | |
23 | ultra_probe1() | |
24 | ultra_probe_isapnp() | |
25 | ||
26 | ultra_open() The card-specific details of starting, stopping | |
27 | ultra_reset_8390() and resetting the 8390 NIC core. | |
28 | ultra_close() | |
29 | ||
30 | ultra_block_input() Routines for reading and writing blocks of | |
31 | ultra_block_output() packet buffer memory. | |
32 | ultra_pio_input() | |
33 | ultra_pio_output() | |
34 | ||
35 | This driver enables the shared memory only when doing the actual data | |
36 | transfers to avoid a bug in early version of the card that corrupted | |
37 | data transferred by a AHA1542. | |
38 | ||
39 | This driver now supports the programmed-I/O (PIO) data transfer mode of | |
40 | the EtherEZ. It does not use the non-8390-compatible "Altego" mode. | |
41 | That support (if available) is in smc-ez.c. | |
42 | ||
43 | Changelog: | |
44 | ||
45 | Paul Gortmaker : multiple card support for module users. | |
46 | Donald Becker : 4/17/96 PIO support, minor potential problems avoided. | |
47 | Donald Becker : 6/6/96 correctly set auto-wrap bit. | |
48 | Alexander Sotirov : 1/20/01 Added support for ISAPnP cards | |
49 | ||
50 | Note about the ISA PnP support: | |
51 | ||
52 | This driver can not autoprobe for more than one SMC EtherEZ PnP card. | |
53 | You have to configure the second card manually through the /proc/isapnp | |
54 | interface and then load the module with an explicit io=0x___ option. | |
55 | */ | |
56 | ||
57 | static const char version[] = | |
58 | "smc-ultra.c:v2.02 2/3/98 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; | |
59 | ||
1da177e4 LT |
60 | #include <linux/module.h> |
61 | #include <linux/kernel.h> | |
62 | #include <linux/errno.h> | |
63 | #include <linux/string.h> | |
64 | #include <linux/init.h> | |
a6b7a407 | 65 | #include <linux/interrupt.h> |
1da177e4 LT |
66 | #include <linux/isapnp.h> |
67 | #include <linux/netdevice.h> | |
68 | #include <linux/etherdevice.h> | |
69 | ||
70 | #include <asm/io.h> | |
bf4e70e5 | 71 | #include <asm/irq.h> |
1da177e4 LT |
72 | |
73 | #include "8390.h" | |
74 | ||
75 | #define DRV_NAME "smc-ultra" | |
76 | ||
77 | /* A zero-terminated list of I/O addresses to be probed. */ | |
78 | static unsigned int ultra_portlist[] __initdata = | |
79 | {0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380, 0}; | |
80 | ||
81 | static int ultra_probe1(struct net_device *dev, int ioaddr); | |
82 | ||
83 | #ifdef __ISAPNP__ | |
84 | static int ultra_probe_isapnp(struct net_device *dev); | |
85 | #endif | |
86 | ||
87 | static int ultra_open(struct net_device *dev); | |
88 | static void ultra_reset_8390(struct net_device *dev); | |
89 | static void ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | |
90 | int ring_page); | |
91 | static void ultra_block_input(struct net_device *dev, int count, | |
92 | struct sk_buff *skb, int ring_offset); | |
93 | static void ultra_block_output(struct net_device *dev, int count, | |
94 | const unsigned char *buf, const int start_page); | |
95 | static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | |
96 | int ring_page); | |
97 | static void ultra_pio_input(struct net_device *dev, int count, | |
98 | struct sk_buff *skb, int ring_offset); | |
99 | static void ultra_pio_output(struct net_device *dev, int count, | |
100 | const unsigned char *buf, const int start_page); | |
101 | static int ultra_close_card(struct net_device *dev); | |
102 | ||
103 | #ifdef __ISAPNP__ | |
104 | static struct isapnp_device_id ultra_device_ids[] __initdata = { | |
105 | { ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416), | |
106 | ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416), | |
107 | (long) "SMC EtherEZ (8416)" }, | |
108 | { } /* terminate list */ | |
109 | }; | |
110 | ||
111 | MODULE_DEVICE_TABLE(isapnp, ultra_device_ids); | |
112 | #endif | |
113 | ||
c45f812f | 114 | static u32 ultra_msg_enable; |
6aa20a22 | 115 | |
1da177e4 LT |
116 | #define START_PG 0x00 /* First page of TX buffer */ |
117 | ||
118 | #define ULTRA_CMDREG 0 /* Offset to ASIC command register. */ | |
119 | #define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */ | |
120 | #define ULTRA_MEMENB 0x40 /* Enable the shared memory. */ | |
121 | #define IOPD 0x02 /* I/O Pipe Data (16 bits), PIO operation. */ | |
122 | #define IOPA 0x07 /* I/O Pipe Address for PIO operation. */ | |
123 | #define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */ | |
124 | #define ULTRA_IO_EXTENT 32 | |
125 | #define EN0_ERWCNT 0x08 /* Early receive warning count. */ | |
6aa20a22 | 126 | |
1da177e4 LT |
127 | #ifdef CONFIG_NET_POLL_CONTROLLER |
128 | static void ultra_poll(struct net_device *dev) | |
129 | { | |
130 | disable_irq(dev->irq); | |
7d12e780 | 131 | ei_interrupt(dev->irq, dev); |
1da177e4 LT |
132 | enable_irq(dev->irq); |
133 | } | |
134 | #endif | |
135 | /* Probe for the Ultra. This looks like a 8013 with the station | |
136 | address PROM at I/O ports <base>+8 to <base>+13, with a checksum | |
137 | following. | |
138 | */ | |
139 | ||
140 | static int __init do_ultra_probe(struct net_device *dev) | |
141 | { | |
142 | int i; | |
143 | int base_addr = dev->base_addr; | |
144 | int irq = dev->irq; | |
145 | ||
1da177e4 LT |
146 | if (base_addr > 0x1ff) /* Check a single specified location. */ |
147 | return ultra_probe1(dev, base_addr); | |
148 | else if (base_addr != 0) /* Don't probe at all. */ | |
149 | return -ENXIO; | |
150 | ||
151 | #ifdef __ISAPNP__ | |
152 | /* Look for any installed ISAPnP cards */ | |
153 | if (isapnp_present() && (ultra_probe_isapnp(dev) == 0)) | |
154 | return 0; | |
155 | #endif | |
156 | ||
157 | for (i = 0; ultra_portlist[i]; i++) { | |
158 | dev->irq = irq; | |
159 | if (ultra_probe1(dev, ultra_portlist[i]) == 0) | |
160 | return 0; | |
161 | } | |
162 | ||
163 | return -ENODEV; | |
164 | } | |
165 | ||
1da177e4 LT |
166 | #ifndef MODULE |
167 | struct net_device * __init ultra_probe(int unit) | |
168 | { | |
169 | struct net_device *dev = alloc_ei_netdev(); | |
170 | int err; | |
171 | ||
172 | if (!dev) | |
173 | return ERR_PTR(-ENOMEM); | |
174 | ||
175 | sprintf(dev->name, "eth%d", unit); | |
176 | netdev_boot_setup_check(dev); | |
177 | ||
178 | err = do_ultra_probe(dev); | |
179 | if (err) | |
180 | goto out; | |
1da177e4 | 181 | return dev; |
1da177e4 LT |
182 | out: |
183 | free_netdev(dev); | |
184 | return ERR_PTR(err); | |
185 | } | |
186 | #endif | |
187 | ||
d079841d SH |
188 | static const struct net_device_ops ultra_netdev_ops = { |
189 | .ndo_open = ultra_open, | |
190 | .ndo_stop = ultra_close_card, | |
191 | ||
192 | .ndo_start_xmit = ei_start_xmit, | |
193 | .ndo_tx_timeout = ei_tx_timeout, | |
194 | .ndo_get_stats = ei_get_stats, | |
afc4b13d | 195 | .ndo_set_rx_mode = ei_set_multicast_list, |
d079841d | 196 | .ndo_validate_addr = eth_validate_addr, |
fe96aaa1 | 197 | .ndo_set_mac_address = eth_mac_addr, |
d079841d SH |
198 | .ndo_change_mtu = eth_change_mtu, |
199 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
06e88403 | 200 | .ndo_poll_controller = ultra_poll, |
d079841d SH |
201 | #endif |
202 | }; | |
203 | ||
1da177e4 LT |
204 | static int __init ultra_probe1(struct net_device *dev, int ioaddr) |
205 | { | |
206 | int i, retval; | |
207 | int checksum = 0; | |
208 | const char *model_name; | |
209 | unsigned char eeprom_irq = 0; | |
210 | static unsigned version_printed; | |
211 | /* Values from various config regs. */ | |
212 | unsigned char num_pages, irqreg, addr, piomode; | |
213 | unsigned char idreg = inb(ioaddr + 7); | |
214 | unsigned char reg4 = inb(ioaddr + 4) & 0x7f; | |
c45f812f | 215 | struct ei_device *ei_local = netdev_priv(dev); |
1da177e4 LT |
216 | |
217 | if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME)) | |
218 | return -EBUSY; | |
219 | ||
220 | /* Check the ID nibble. */ | |
221 | if ((idreg & 0xF0) != 0x20 /* SMC Ultra */ | |
222 | && (idreg & 0xF0) != 0x40) { /* SMC EtherEZ */ | |
223 | retval = -ENODEV; | |
224 | goto out; | |
225 | } | |
226 | ||
227 | /* Select the station address register set. */ | |
228 | outb(reg4, ioaddr + 4); | |
229 | ||
230 | for (i = 0; i < 8; i++) | |
231 | checksum += inb(ioaddr + 8 + i); | |
232 | if ((checksum & 0xff) != 0xFF) { | |
233 | retval = -ENODEV; | |
234 | goto out; | |
235 | } | |
236 | ||
c45f812f MW |
237 | if ((ultra_msg_enable & NETIF_MSG_DRV) && (version_printed++ == 0)) |
238 | netdev_info(dev, version); | |
1da177e4 LT |
239 | |
240 | model_name = (idreg & 0xF0) == 0x20 ? "SMC Ultra" : "SMC EtherEZ"; | |
241 | ||
1da177e4 | 242 | for (i = 0; i < 6; i++) |
0795af57 JP |
243 | dev->dev_addr[i] = inb(ioaddr + 8 + i); |
244 | ||
c45f812f MW |
245 | netdev_info(dev, "%s at %#3x, %pM", model_name, |
246 | ioaddr, dev->dev_addr); | |
1da177e4 LT |
247 | |
248 | /* Switch from the station address to the alternate register set and | |
249 | read the useful registers there. */ | |
250 | outb(0x80 | reg4, ioaddr + 4); | |
251 | ||
252 | /* Enabled FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */ | |
253 | outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c); | |
254 | piomode = inb(ioaddr + 0x8); | |
255 | addr = inb(ioaddr + 0xb); | |
256 | irqreg = inb(ioaddr + 0xd); | |
257 | ||
258 | /* Switch back to the station address register set so that the MS-DOS driver | |
259 | can find the card after a warm boot. */ | |
260 | outb(reg4, ioaddr + 4); | |
261 | ||
262 | if (dev->irq < 2) { | |
263 | unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15}; | |
264 | int irq; | |
265 | ||
266 | /* The IRQ bits are split. */ | |
267 | irq = irqmap[((irqreg & 0x40) >> 4) + ((irqreg & 0x0c) >> 2)]; | |
268 | ||
269 | if (irq == 0) { | |
c45f812f | 270 | pr_cont(", failed to detect IRQ line.\n"); |
1da177e4 LT |
271 | retval = -EAGAIN; |
272 | goto out; | |
273 | } | |
274 | dev->irq = irq; | |
275 | eeprom_irq = 1; | |
276 | } | |
277 | ||
278 | /* The 8390 isn't at the base address, so fake the offset */ | |
279 | dev->base_addr = ioaddr+ULTRA_NIC_OFFSET; | |
280 | ||
281 | { | |
b6bc7650 JP |
282 | static const int addr_tbl[4] = { |
283 | 0x0C0000, 0x0E0000, 0xFC0000, 0xFE0000 | |
284 | }; | |
285 | static const short num_pages_tbl[4] = { | |
286 | 0x20, 0x40, 0x80, 0xff | |
287 | }; | |
1da177e4 LT |
288 | |
289 | dev->mem_start = ((addr & 0x0f) << 13) + addr_tbl[(addr >> 6) & 3] ; | |
290 | num_pages = num_pages_tbl[(addr >> 4) & 3]; | |
291 | } | |
292 | ||
293 | ei_status.name = model_name; | |
294 | ei_status.word16 = 1; | |
295 | ei_status.tx_start_page = START_PG; | |
296 | ei_status.rx_start_page = START_PG + TX_PAGES; | |
297 | ei_status.stop_page = num_pages; | |
298 | ||
299 | ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG)*256); | |
300 | if (!ei_status.mem) { | |
c45f812f | 301 | pr_cont(", failed to ioremap.\n"); |
1da177e4 LT |
302 | retval = -ENOMEM; |
303 | goto out; | |
304 | } | |
305 | ||
306 | dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG)*256; | |
307 | ||
308 | if (piomode) { | |
c45f812f MW |
309 | pr_cont(", %s IRQ %d programmed-I/O mode.\n", |
310 | eeprom_irq ? "EEPROM" : "assigned ", dev->irq); | |
1da177e4 LT |
311 | ei_status.block_input = &ultra_pio_input; |
312 | ei_status.block_output = &ultra_pio_output; | |
313 | ei_status.get_8390_hdr = &ultra_pio_get_hdr; | |
314 | } else { | |
c45f812f MW |
315 | pr_cont(", %s IRQ %d memory %#lx-%#lx.\n", |
316 | eeprom_irq ? "" : "assigned ", dev->irq, dev->mem_start, | |
317 | dev->mem_end-1); | |
1da177e4 LT |
318 | ei_status.block_input = &ultra_block_input; |
319 | ei_status.block_output = &ultra_block_output; | |
320 | ei_status.get_8390_hdr = &ultra_get_8390_hdr; | |
321 | } | |
322 | ei_status.reset_8390 = &ultra_reset_8390; | |
d079841d SH |
323 | |
324 | dev->netdev_ops = &ultra_netdev_ops; | |
1da177e4 | 325 | NS8390_init(dev, 0); |
c45f812f | 326 | ei_local->msg_enable = ultra_msg_enable; |
1da177e4 | 327 | |
b1fc5505 | 328 | retval = register_netdev(dev); |
329 | if (retval) | |
330 | goto out; | |
1da177e4 LT |
331 | return 0; |
332 | out: | |
333 | release_region(ioaddr, ULTRA_IO_EXTENT); | |
334 | return retval; | |
335 | } | |
336 | ||
337 | #ifdef __ISAPNP__ | |
338 | static int __init ultra_probe_isapnp(struct net_device *dev) | |
339 | { | |
340 | int i; | |
341 | ||
342 | for (i = 0; ultra_device_ids[i].vendor != 0; i++) { | |
343 | struct pnp_dev *idev = NULL; | |
344 | ||
345 | while ((idev = pnp_find_dev(NULL, | |
346 | ultra_device_ids[i].vendor, | |
347 | ultra_device_ids[i].function, | |
348 | idev))) { | |
349 | /* Avoid already found cards from previous calls */ | |
350 | if (pnp_device_attach(idev) < 0) | |
351 | continue; | |
352 | if (pnp_activate_dev(idev) < 0) { | |
353 | __again: | |
354 | pnp_device_detach(idev); | |
355 | continue; | |
356 | } | |
357 | /* if no io and irq, search for next */ | |
358 | if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) | |
359 | goto __again; | |
360 | /* found it */ | |
361 | dev->base_addr = pnp_port_start(idev, 0); | |
362 | dev->irq = pnp_irq(idev, 0); | |
c45f812f MW |
363 | netdev_info(dev, |
364 | "smc-ultra.c: ISAPnP reports %s at i/o %#lx, irq %d.\n", | |
365 | (char *) ultra_device_ids[i].driver_data, | |
366 | dev->base_addr, dev->irq); | |
1da177e4 | 367 | if (ultra_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */ |
c45f812f MW |
368 | netdev_err(dev, |
369 | "smc-ultra.c: Probe of ISAPnP card at %#lx failed.\n", | |
370 | dev->base_addr); | |
371 | pnp_device_detach(idev); | |
1da177e4 LT |
372 | return -ENXIO; |
373 | } | |
374 | ei_status.priv = (unsigned long)idev; | |
375 | break; | |
376 | } | |
377 | if (!idev) | |
378 | continue; | |
379 | return 0; | |
380 | } | |
381 | ||
382 | return -ENODEV; | |
383 | } | |
384 | #endif | |
385 | ||
386 | static int | |
387 | ultra_open(struct net_device *dev) | |
388 | { | |
389 | int retval; | |
390 | int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ | |
391 | unsigned char irq2reg[] = {0, 0, 0x04, 0x08, 0, 0x0C, 0, 0x40, | |
392 | 0, 0x04, 0x44, 0x48, 0, 0, 0, 0x4C, }; | |
393 | ||
394 | retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev); | |
395 | if (retval) | |
396 | return retval; | |
397 | ||
398 | outb(0x00, ioaddr); /* Disable shared memory for safety. */ | |
399 | outb(0x80, ioaddr + 5); | |
400 | /* Set the IRQ line. */ | |
401 | outb(inb(ioaddr + 4) | 0x80, ioaddr + 4); | |
402 | outb((inb(ioaddr + 13) & ~0x4C) | irq2reg[dev->irq], ioaddr + 13); | |
403 | outb(inb(ioaddr + 4) & 0x7f, ioaddr + 4); | |
404 | ||
405 | if (ei_status.block_input == &ultra_pio_input) { | |
406 | outb(0x11, ioaddr + 6); /* Enable interrupts and PIO. */ | |
407 | outb(0x01, ioaddr + 0x19); /* Enable ring read auto-wrap. */ | |
408 | } else | |
409 | outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */ | |
410 | /* Set the early receive warning level in window 0 high enough not | |
411 | to receive ERW interrupts. */ | |
412 | outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr); | |
413 | outb(0xff, dev->base_addr + EN0_ERWCNT); | |
414 | ei_open(dev); | |
415 | return 0; | |
416 | } | |
417 | ||
418 | static void | |
419 | ultra_reset_8390(struct net_device *dev) | |
420 | { | |
421 | int cmd_port = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC base addr */ | |
c45f812f | 422 | struct ei_device *ei_local = netdev_priv(dev); |
1da177e4 LT |
423 | |
424 | outb(ULTRA_RESET, cmd_port); | |
c45f812f | 425 | netif_dbg(ei_local, hw, dev, "resetting Ultra, t=%ld...\n", jiffies); |
1da177e4 LT |
426 | ei_status.txing = 0; |
427 | ||
428 | outb(0x00, cmd_port); /* Disable shared memory for safety. */ | |
429 | outb(0x80, cmd_port + 5); | |
430 | if (ei_status.block_input == &ultra_pio_input) | |
431 | outb(0x11, cmd_port + 6); /* Enable interrupts and PIO. */ | |
432 | else | |
433 | outb(0x01, cmd_port + 6); /* Enable interrupts and memory. */ | |
434 | ||
c45f812f | 435 | netif_dbg(ei_local, hw, dev, "reset done\n"); |
1da177e4 LT |
436 | } |
437 | ||
438 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
439 | we don't need to be concerned with ring wrap as the header will be at | |
440 | the start of a page, so we optimize accordingly. */ | |
441 | ||
442 | static void | |
443 | ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
444 | { | |
445 | void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG)<<8); | |
446 | ||
447 | outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem on */ | |
448 | #ifdef __BIG_ENDIAN | |
449 | /* Officially this is what we are doing, but the readl() is faster */ | |
450 | /* unfortunately it isn't endian aware of the struct */ | |
451 | memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); | |
452 | hdr->count = le16_to_cpu(hdr->count); | |
453 | #else | |
454 | ((unsigned int*)hdr)[0] = readl(hdr_start); | |
455 | #endif | |
456 | outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem off */ | |
457 | } | |
458 | ||
459 | /* Block input and output are easy on shared memory ethercards, the only | |
460 | complication is when the ring buffer wraps. */ | |
461 | ||
462 | static void | |
463 | ultra_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | |
464 | { | |
465 | void __iomem *xfer_start = ei_status.mem + ring_offset - (START_PG<<8); | |
466 | ||
467 | /* Enable shared memory. */ | |
468 | outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); | |
469 | ||
470 | if (ring_offset + count > ei_status.stop_page*256) { | |
471 | /* We must wrap the input move. */ | |
472 | int semi_count = ei_status.stop_page*256 - ring_offset; | |
473 | memcpy_fromio(skb->data, xfer_start, semi_count); | |
474 | count -= semi_count; | |
475 | memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count); | |
476 | } else { | |
4ec03116 | 477 | memcpy_fromio(skb->data, xfer_start, count); |
1da177e4 LT |
478 | } |
479 | ||
480 | outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */ | |
481 | } | |
482 | ||
483 | static void | |
484 | ultra_block_output(struct net_device *dev, int count, const unsigned char *buf, | |
485 | int start_page) | |
486 | { | |
487 | void __iomem *shmem = ei_status.mem + ((start_page - START_PG)<<8); | |
488 | ||
489 | /* Enable shared memory. */ | |
490 | outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); | |
491 | ||
492 | memcpy_toio(shmem, buf, count); | |
493 | ||
494 | outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */ | |
495 | } | |
496 | ||
497 | /* The identical operations for programmed I/O cards. | |
498 | The PIO model is trivial to use: the 16 bit start address is written | |
499 | byte-sequentially to IOPA, with no intervening I/O operations, and the | |
500 | data is read or written to the IOPD data port. | |
501 | The only potential complication is that the address register is shared | |
502 | and must be always be rewritten between each read/write direction change. | |
503 | This is no problem for us, as the 8390 code ensures that we are single | |
504 | threaded. */ | |
505 | static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | |
506 | int ring_page) | |
507 | { | |
508 | int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ | |
509 | outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */ | |
510 | outb(ring_page, ioaddr + IOPA); | |
511 | insw(ioaddr + IOPD, hdr, sizeof(struct e8390_pkt_hdr)>>1); | |
512 | } | |
513 | ||
514 | static void ultra_pio_input(struct net_device *dev, int count, | |
515 | struct sk_buff *skb, int ring_offset) | |
516 | { | |
517 | int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ | |
518 | char *buf = skb->data; | |
519 | ||
520 | /* For now set the address again, although it should already be correct. */ | |
521 | outb(ring_offset, ioaddr + IOPA); /* Set the address, LSB first. */ | |
522 | outb(ring_offset >> 8, ioaddr + IOPA); | |
523 | /* We know skbuffs are padded to at least word alignment. */ | |
524 | insw(ioaddr + IOPD, buf, (count+1)>>1); | |
525 | } | |
526 | ||
527 | static void ultra_pio_output(struct net_device *dev, int count, | |
528 | const unsigned char *buf, const int start_page) | |
529 | { | |
530 | int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ | |
531 | outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */ | |
532 | outb(start_page, ioaddr + IOPA); | |
533 | /* An extra odd byte is OK here as well. */ | |
534 | outsw(ioaddr + IOPD, buf, (count+1)>>1); | |
535 | } | |
536 | ||
537 | static int | |
538 | ultra_close_card(struct net_device *dev) | |
539 | { | |
540 | int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* CMDREG */ | |
c45f812f | 541 | struct ei_device *ei_local = netdev_priv(dev); |
1da177e4 LT |
542 | |
543 | netif_stop_queue(dev); | |
544 | ||
c45f812f | 545 | netif_dbg(ei_local, ifdown, dev, "Shutting down ethercard.\n"); |
1da177e4 LT |
546 | |
547 | outb(0x00, ioaddr + 6); /* Disable interrupts. */ | |
548 | free_irq(dev->irq, dev); | |
549 | ||
550 | NS8390_init(dev, 0); | |
551 | ||
552 | /* We should someday disable shared memory and change to 8-bit mode | |
553 | "just in case"... */ | |
554 | ||
555 | return 0; | |
556 | } | |
557 | ||
6aa20a22 | 558 | |
1da177e4 LT |
559 | #ifdef MODULE |
560 | #define MAX_ULTRA_CARDS 4 /* Max number of Ultra cards per module */ | |
561 | static struct net_device *dev_ultra[MAX_ULTRA_CARDS]; | |
562 | static int io[MAX_ULTRA_CARDS]; | |
563 | static int irq[MAX_ULTRA_CARDS]; | |
564 | ||
565 | module_param_array(io, int, NULL, 0); | |
566 | module_param_array(irq, int, NULL, 0); | |
c45f812f | 567 | module_param_named(msg_enable, ultra_msg_enable, uint, (S_IRUSR|S_IRGRP|S_IROTH)); |
1da177e4 LT |
568 | MODULE_PARM_DESC(io, "I/O base address(es)"); |
569 | MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)"); | |
c45f812f | 570 | MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)"); |
1da177e4 LT |
571 | MODULE_DESCRIPTION("SMC Ultra/EtherEZ ISA/PnP Ethernet driver"); |
572 | MODULE_LICENSE("GPL"); | |
573 | ||
574 | /* This is set up so that only a single autoprobe takes place per call. | |
575 | ISA device autoprobes on a running machine are not recommended. */ | |
a2bd2ec8 | 576 | int __init |
1da177e4 LT |
577 | init_module(void) |
578 | { | |
579 | struct net_device *dev; | |
580 | int this_dev, found = 0; | |
581 | ||
582 | for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) { | |
583 | if (io[this_dev] == 0) { | |
584 | if (this_dev != 0) break; /* only autoprobe 1st one */ | |
585 | printk(KERN_NOTICE "smc-ultra.c: Presently autoprobing (not recommended) for a single card.\n"); | |
586 | } | |
587 | dev = alloc_ei_netdev(); | |
588 | if (!dev) | |
589 | break; | |
590 | dev->irq = irq[this_dev]; | |
591 | dev->base_addr = io[this_dev]; | |
592 | if (do_ultra_probe(dev) == 0) { | |
b1fc5505 | 593 | dev_ultra[found++] = dev; |
594 | continue; | |
1da177e4 LT |
595 | } |
596 | free_netdev(dev); | |
597 | printk(KERN_WARNING "smc-ultra.c: No SMC Ultra card found (i/o = 0x%x).\n", io[this_dev]); | |
598 | break; | |
599 | } | |
600 | if (found) | |
601 | return 0; | |
602 | return -ENXIO; | |
603 | } | |
604 | ||
64916f1e DV |
605 | static void cleanup_card(struct net_device *dev) |
606 | { | |
607 | /* NB: ultra_close_card() does free_irq */ | |
608 | #ifdef __ISAPNP__ | |
609 | struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; | |
610 | if (idev) | |
611 | pnp_device_detach(idev); | |
612 | #endif | |
613 | release_region(dev->base_addr - ULTRA_NIC_OFFSET, ULTRA_IO_EXTENT); | |
614 | iounmap(ei_status.mem); | |
615 | } | |
616 | ||
afc8eb46 | 617 | void __exit |
1da177e4 LT |
618 | cleanup_module(void) |
619 | { | |
620 | int this_dev; | |
621 | ||
622 | for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) { | |
623 | struct net_device *dev = dev_ultra[this_dev]; | |
624 | if (dev) { | |
625 | unregister_netdev(dev); | |
626 | cleanup_card(dev); | |
627 | free_netdev(dev); | |
628 | } | |
629 | } | |
630 | } | |
631 | #endif /* MODULE */ |