Commit | Line | Data |
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1da177e4 LT |
1 | /* smc-mca.c: A SMC Ultra ethernet driver for linux. */ |
2 | /* | |
3 | Most of this driver, except for ultramca_probe is nearly | |
4 | verbatim from smc-ultra.c by Donald Becker. The rest is | |
5 | written and copyright 1996 by David Weis, weisd3458@uni.edu | |
6 | ||
7 | This is a driver for the SMC Ultra and SMC EtherEZ ethercards. | |
8 | ||
9 | This driver uses the cards in the 8390-compatible, shared memory mode. | |
10 | Most of the run-time complexity is handled by the generic code in | |
11 | 8390.c. | |
12 | ||
13 | This driver enables the shared memory only when doing the actual data | |
14 | transfers to avoid a bug in early version of the card that corrupted | |
15 | data transferred by a AHA1542. | |
16 | ||
17 | This driver does not support the programmed-I/O data transfer mode of | |
18 | the EtherEZ. That support (if available) is smc-ez.c. Nor does it | |
19 | use the non-8390-compatible "Altego" mode. (No support currently planned.) | |
20 | ||
21 | Changelog: | |
22 | ||
23 | Paul Gortmaker : multiple card support for module users. | |
24 | David Weis : Micro Channel-ized it. | |
25 | Tom Sightler : Added support for IBM PS/2 Ethernet Adapter/A | |
26 | Christopher Turcksin : Changed MCA-probe so that multiple adapters are | |
27 | found correctly (Jul 16, 1997) | |
28 | Chris Beauregard : Tried to merge the two changes above (Dec 15, 1997) | |
29 | Tom Sightler : Fixed minor detection bug caused by above merge | |
30 | Tom Sightler : Added support for three more Western Digital | |
31 | MCA-adapters | |
32 | Tom Sightler : Added support for 2.2.x mca_find_unused_adapter | |
33 | Hartmut Schmidt : - Modified parameter detection to handle each | |
34 | card differently depending on a switch-list | |
35 | - 'card_ver' removed from the adapter list | |
36 | - Some minor bug fixes | |
37 | */ | |
38 | ||
39 | #include <linux/mca.h> | |
40 | #include <linux/module.h> | |
41 | #include <linux/kernel.h> | |
42 | #include <linux/errno.h> | |
43 | #include <linux/string.h> | |
44 | #include <linux/init.h> | |
45 | #include <linux/netdevice.h> | |
46 | #include <linux/etherdevice.h> | |
47 | ||
48 | #include <asm/io.h> | |
49 | #include <asm/system.h> | |
50 | ||
51 | #include "8390.h" | |
52 | #include "smc-mca.h" | |
53 | ||
54 | #define DRV_NAME "smc-mca" | |
55 | ||
56 | static int ultramca_open(struct net_device *dev); | |
57 | static void ultramca_reset_8390(struct net_device *dev); | |
58 | static void ultramca_get_8390_hdr(struct net_device *dev, | |
59 | struct e8390_pkt_hdr *hdr, | |
60 | int ring_page); | |
61 | static void ultramca_block_input(struct net_device *dev, int count, | |
62 | struct sk_buff *skb, | |
63 | int ring_offset); | |
64 | static void ultramca_block_output(struct net_device *dev, int count, | |
65 | const unsigned char *buf, | |
66 | const int start_page); | |
67 | static int ultramca_close_card(struct net_device *dev); | |
68 | ||
69 | #define START_PG 0x00 /* First page of TX buffer */ | |
70 | ||
71 | #define ULTRA_CMDREG 0 /* Offset to ASIC command register. */ | |
72 | #define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */ | |
73 | #define ULTRA_MEMENB 0x40 /* Enable the shared memory. */ | |
74 | #define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */ | |
75 | #define ULTRA_IO_EXTENT 32 | |
76 | #define EN0_ERWCNT 0x08 /* Early receive warning count. */ | |
77 | ||
78 | #define _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A 0 | |
79 | #define _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A 1 | |
80 | #define _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A 2 | |
81 | #define _6fc1_WD_Starcard_PLUS_A_WD8003ST_A 3 | |
82 | #define _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A 4 | |
83 | #define _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A 5 | |
84 | #define _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A 6 | |
85 | #define _efe5_IBM_PS2_Adapter_A_for_Ethernet 7 | |
86 | ||
87 | struct smc_mca_adapters_t { | |
88 | unsigned int id; | |
89 | char *name; | |
90 | }; | |
91 | ||
92 | #define MAX_ULTRAMCA_CARDS 4 /* Max number of Ultra cards per module */ | |
93 | ||
94 | static int ultra_io[MAX_ULTRAMCA_CARDS]; | |
95 | static int ultra_irq[MAX_ULTRAMCA_CARDS]; | |
96 | MODULE_LICENSE("GPL"); | |
97 | ||
98 | module_param_array(ultra_io, int, NULL, 0); | |
99 | module_param_array(ultra_irq, int, NULL, 0); | |
100 | MODULE_PARM_DESC(ultra_io, "SMC Ultra/EtherEZ MCA I/O base address(es)"); | |
101 | MODULE_PARM_DESC(ultra_irq, "SMC Ultra/EtherEZ MCA IRQ number(s)"); | |
102 | ||
103 | static short smc_mca_adapter_ids[] __initdata = { | |
104 | 0x61c8, | |
105 | 0x61c9, | |
106 | 0x6fc0, | |
107 | 0x6fc1, | |
108 | 0x6fc2, | |
109 | 0xefd4, | |
110 | 0xefd5, | |
111 | 0xefe5, | |
112 | 0x0000 | |
113 | }; | |
114 | ||
115 | static char *smc_mca_adapter_names[] __initdata = { | |
116 | "SMC Ethercard PLUS Elite/A BNC/AUI (WD8013EP/A)", | |
117 | "SMC Ethercard PLUS Elite/A UTP/AUI (WD8013WP/A)", | |
118 | "WD Ethercard PLUS/A (WD8003E/A or WD8003ET/A)", | |
119 | "WD Starcard PLUS/A (WD8003ST/A)", | |
120 | "WD Ethercard PLUS 10T/A (WD8003W/A)", | |
121 | "IBM PS/2 Adapter/A for Ethernet UTP/AUI (WD8013WP/A)", | |
122 | "IBM PS/2 Adapter/A for Ethernet BNC/AUI (WD8013EP/A)", | |
123 | "IBM PS/2 Adapter/A for Ethernet", | |
124 | NULL | |
125 | }; | |
126 | ||
127 | static int ultra_found = 0; | |
128 | ||
129 | int __init ultramca_probe(struct device *gen_dev) | |
130 | { | |
131 | unsigned short ioaddr; | |
132 | struct net_device *dev; | |
133 | unsigned char reg4, num_pages; | |
134 | struct mca_device *mca_dev = to_mca_device(gen_dev); | |
135 | char slot = mca_dev->slot; | |
136 | unsigned char pos2 = 0xff, pos3 = 0xff, pos4 = 0xff, pos5 = 0xff; | |
137 | int i, rc; | |
138 | int adapter = mca_dev->index; | |
139 | int tbase = 0; | |
140 | int tirq = 0; | |
141 | int base_addr = ultra_io[ultra_found]; | |
142 | int irq = ultra_irq[ultra_found]; | |
143 | ||
144 | if (base_addr || irq) { | |
145 | printk(KERN_INFO "Probing for SMC MCA adapter"); | |
146 | if (base_addr) { | |
147 | printk(KERN_INFO " at I/O address 0x%04x%c", | |
148 | base_addr, irq ? ' ' : '\n'); | |
149 | } | |
150 | if (irq) { | |
151 | printk(KERN_INFO "using irq %d\n", irq); | |
152 | } | |
153 | } | |
154 | ||
155 | tirq = 0; | |
156 | tbase = 0; | |
157 | ||
158 | /* If we're trying to match a specificied irq or io address, | |
159 | * we'll reject the adapter found unless it's the one we're | |
160 | * looking for */ | |
161 | ||
162 | pos2 = mca_device_read_stored_pos(mca_dev, 2); /* io_addr */ | |
163 | pos3 = mca_device_read_stored_pos(mca_dev, 3); /* shared mem */ | |
164 | pos4 = mca_device_read_stored_pos(mca_dev, 4); /* ROM bios addr range */ | |
165 | pos5 = mca_device_read_stored_pos(mca_dev, 5); /* irq, media and RIPL */ | |
166 | ||
167 | /* Test the following conditions: | |
168 | * - If an irq parameter is supplied, compare it | |
169 | * with the irq of the adapter we found | |
170 | * - If a base_addr paramater is given, compare it | |
171 | * with the base_addr of the adapter we found | |
172 | * - Check that the irq and the base_addr of the | |
173 | * adapter we found is not already in use by | |
174 | * this driver | |
175 | */ | |
176 | ||
177 | switch (mca_dev->index) { | |
178 | case _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A: | |
179 | case _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A: | |
180 | case _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A: | |
181 | case _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A: | |
182 | { | |
183 | tbase = addr_table[(pos2 & 0xf0) >> 4].base_addr; | |
184 | tirq = irq_table[(pos5 & 0xc) >> 2].new_irq; | |
185 | break; | |
186 | } | |
187 | case _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A: | |
188 | case _6fc1_WD_Starcard_PLUS_A_WD8003ST_A: | |
189 | case _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A: | |
190 | case _efe5_IBM_PS2_Adapter_A_for_Ethernet: | |
191 | { | |
192 | tbase = ((pos2 & 0x0fe) * 0x10); | |
193 | tirq = irq_table[(pos5 & 3)].old_irq; | |
194 | break; | |
195 | } | |
196 | } | |
197 | ||
198 | if(!tirq || !tbase | |
199 | || (irq && irq != tirq) | |
200 | || (base_addr && tbase != base_addr)) | |
201 | /* FIXME: we're trying to force the ordering of the | |
202 | * devices here, there should be a way of getting this | |
203 | * to happen */ | |
204 | return -ENXIO; | |
205 | ||
206 | /* Adapter found. */ | |
207 | dev = alloc_ei_netdev(); | |
208 | if(!dev) | |
209 | return -ENODEV; | |
210 | ||
211 | SET_MODULE_OWNER(dev); | |
212 | SET_NETDEV_DEV(dev, gen_dev); | |
213 | mca_device_set_name(mca_dev, smc_mca_adapter_names[adapter]); | |
214 | mca_device_set_claim(mca_dev, 1); | |
215 | ||
216 | printk(KERN_INFO "smc_mca: %s found in slot %d\n", | |
217 | smc_mca_adapter_names[adapter], slot + 1); | |
218 | ||
219 | ultra_found++; | |
220 | ||
221 | dev->base_addr = ioaddr = mca_device_transform_ioport(mca_dev, tbase); | |
222 | dev->irq = mca_device_transform_irq(mca_dev, tirq); | |
223 | dev->mem_start = 0; | |
224 | num_pages = 40; | |
225 | ||
226 | switch (adapter) { /* card-# in const array above [hs] */ | |
227 | case _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A: | |
228 | case _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A: | |
229 | { | |
230 | for (i = 0; i < 16; i++) { /* taking 16 counts | |
231 | * up to 15 [hs] */ | |
232 | if (mem_table[i].mem_index == (pos3 & ~MEM_MASK)) { | |
233 | dev->mem_start = (unsigned long) | |
234 | mca_device_transform_memory(mca_dev, (void *)mem_table[i].mem_start); | |
235 | num_pages = mem_table[i].num_pages; | |
236 | } | |
237 | } | |
238 | break; | |
239 | } | |
240 | case _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A: | |
241 | case _6fc1_WD_Starcard_PLUS_A_WD8003ST_A: | |
242 | case _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A: | |
243 | case _efe5_IBM_PS2_Adapter_A_for_Ethernet: | |
244 | { | |
245 | dev->mem_start = (unsigned long) | |
246 | mca_device_transform_memory(mca_dev, (void *)((pos3 & 0xfc) * 0x1000)); | |
247 | num_pages = 0x40; | |
248 | break; | |
249 | } | |
250 | case _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A: | |
251 | case _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A: | |
252 | { | |
253 | /* courtesy of gamera@quartz.ocn.ne.jp, pos3 indicates | |
254 | * the index of the 0x2000 step. | |
255 | * beware different number of pages [hs] | |
256 | */ | |
257 | dev->mem_start = (unsigned long) | |
258 | mca_device_transform_memory(mca_dev, (void *)(0xc0000 + (0x2000 * (pos3 & 0xf)))); | |
259 | num_pages = 0x20 + (2 * (pos3 & 0x10)); | |
260 | break; | |
261 | } | |
262 | } | |
263 | ||
264 | /* sanity check, shouldn't happen */ | |
265 | if (dev->mem_start == 0) { | |
266 | rc = -ENODEV; | |
267 | goto err_unclaim; | |
268 | } | |
269 | ||
270 | if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME)) { | |
271 | rc = -ENODEV; | |
272 | goto err_unclaim; | |
273 | } | |
274 | ||
275 | reg4 = inb(ioaddr + 4) & 0x7f; | |
276 | outb(reg4, ioaddr + 4); | |
277 | ||
278 | printk(KERN_INFO "smc_mca[%d]: Parameters: %#3x,", slot + 1, ioaddr); | |
279 | ||
280 | for (i = 0; i < 6; i++) | |
281 | printk(" %2.2X", dev->dev_addr[i] = inb(ioaddr + 8 + i)); | |
282 | ||
283 | /* Switch from the station address to the alternate register set | |
284 | * and read the useful registers there. | |
285 | */ | |
286 | ||
287 | outb(0x80 | reg4, ioaddr + 4); | |
288 | ||
289 | /* Enable FINE16 mode to avoid BIOS ROM width mismatches @ reboot. | |
290 | */ | |
291 | ||
292 | outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c); | |
293 | ||
294 | /* Switch back to the station address register set so that | |
295 | * the MS-DOS driver can find the card after a warm boot. | |
296 | */ | |
297 | ||
298 | outb(reg4, ioaddr + 4); | |
299 | ||
300 | gen_dev->driver_data = dev; | |
301 | ||
302 | /* The 8390 isn't at the base address, so fake the offset | |
303 | */ | |
304 | ||
305 | dev->base_addr = ioaddr + ULTRA_NIC_OFFSET; | |
306 | ||
307 | ei_status.name = "SMC Ultra MCA"; | |
308 | ei_status.word16 = 1; | |
309 | ei_status.tx_start_page = START_PG; | |
310 | ei_status.rx_start_page = START_PG + TX_PAGES; | |
311 | ei_status.stop_page = num_pages; | |
312 | ||
313 | ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG) * 256); | |
314 | if (!ei_status.mem) { | |
315 | rc = -ENOMEM; | |
316 | goto err_release_region; | |
317 | } | |
318 | ||
319 | dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG) * 256; | |
320 | ||
321 | printk(", IRQ %d memory %#lx-%#lx.\n", | |
322 | dev->irq, dev->mem_start, dev->mem_end - 1); | |
323 | ||
324 | ei_status.reset_8390 = &ultramca_reset_8390; | |
325 | ei_status.block_input = &ultramca_block_input; | |
326 | ei_status.block_output = &ultramca_block_output; | |
327 | ei_status.get_8390_hdr = &ultramca_get_8390_hdr; | |
328 | ||
329 | ei_status.priv = slot; | |
330 | ||
331 | dev->open = &ultramca_open; | |
332 | dev->stop = &ultramca_close_card; | |
333 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
334 | dev->poll_controller = ei_poll; | |
335 | #endif | |
336 | ||
337 | NS8390_init(dev, 0); | |
338 | ||
339 | rc = register_netdev(dev); | |
340 | if (rc) | |
341 | goto err_unmap; | |
342 | ||
343 | return 0; | |
344 | ||
345 | err_unmap: | |
346 | iounmap(ei_status.mem); | |
347 | err_release_region: | |
348 | release_region(ioaddr, ULTRA_IO_EXTENT); | |
349 | err_unclaim: | |
350 | mca_device_set_claim(mca_dev, 0); | |
351 | free_netdev(dev); | |
352 | return rc; | |
353 | } | |
354 | ||
355 | static int ultramca_open(struct net_device *dev) | |
356 | { | |
357 | int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ | |
358 | int retval; | |
359 | ||
360 | if ((retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev))) | |
361 | return retval; | |
362 | ||
363 | outb(ULTRA_MEMENB, ioaddr); /* Enable memory */ | |
364 | outb(0x80, ioaddr + 5); /* ??? */ | |
365 | outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */ | |
366 | outb(0x04, ioaddr + 5); /* ??? */ | |
367 | ||
368 | /* Set the early receive warning level in window 0 high enough not | |
369 | * to receive ERW interrupts. | |
370 | */ | |
371 | ||
372 | /* outb_p(E8390_NODMA + E8390_PAGE0, dev->base_addr); | |
373 | * outb(0xff, dev->base_addr + EN0_ERWCNT); | |
374 | */ | |
375 | ||
376 | ei_open(dev); | |
377 | return 0; | |
378 | } | |
379 | ||
380 | static void ultramca_reset_8390(struct net_device *dev) | |
381 | { | |
382 | int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ | |
383 | ||
384 | outb(ULTRA_RESET, ioaddr); | |
385 | if (ei_debug > 1) | |
386 | printk("resetting Ultra, t=%ld...", jiffies); | |
387 | ei_status.txing = 0; | |
388 | ||
389 | outb(0x80, ioaddr + 5); /* ??? */ | |
390 | outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */ | |
391 | ||
392 | if (ei_debug > 1) | |
393 | printk("reset done\n"); | |
394 | return; | |
395 | } | |
396 | ||
397 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
398 | * we don't need to be concerned with ring wrap as the header will be at | |
399 | * the start of a page, so we optimize accordingly. | |
400 | */ | |
401 | ||
402 | static void ultramca_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
403 | { | |
404 | void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG) << 8); | |
405 | ||
406 | #ifdef notdef | |
407 | /* Officially this is what we are doing, but the readl() is faster */ | |
408 | memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); | |
409 | #else | |
410 | ((unsigned int*)hdr)[0] = readl(hdr_start); | |
411 | #endif | |
412 | } | |
413 | ||
414 | /* Block input and output are easy on shared memory ethercards, the only | |
415 | * complication is when the ring buffer wraps. | |
416 | */ | |
417 | ||
418 | static void ultramca_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | |
419 | { | |
420 | void __iomem *xfer_start = ei_status.mem + ring_offset - START_PG * 256; | |
421 | ||
422 | if (ring_offset + count > ei_status.stop_page * 256) { | |
423 | /* We must wrap the input move. */ | |
424 | int semi_count = ei_status.stop_page * 256 - ring_offset; | |
425 | memcpy_fromio(skb->data, xfer_start, semi_count); | |
426 | count -= semi_count; | |
427 | memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count); | |
428 | } else { | |
429 | /* Packet is in one chunk -- we can copy + cksum. */ | |
430 | eth_io_copy_and_sum(skb, xfer_start, count, 0); | |
431 | } | |
432 | ||
433 | } | |
434 | ||
435 | static void ultramca_block_output(struct net_device *dev, int count, const unsigned char *buf, | |
436 | int start_page) | |
437 | { | |
438 | void __iomem *shmem = ei_status.mem + ((start_page - START_PG) << 8); | |
439 | ||
440 | memcpy_toio(shmem, buf, count); | |
441 | } | |
442 | ||
443 | static int ultramca_close_card(struct net_device *dev) | |
444 | { | |
445 | int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ | |
446 | ||
447 | netif_stop_queue(dev); | |
448 | ||
449 | if (ei_debug > 1) | |
450 | printk("%s: Shutting down ethercard.\n", dev->name); | |
451 | ||
452 | outb(0x00, ioaddr + 6); /* Disable interrupts. */ | |
453 | free_irq(dev->irq, dev); | |
454 | ||
455 | NS8390_init(dev, 0); | |
456 | /* We should someday disable shared memory and change to 8-bit mode | |
457 | * "just in case"... | |
458 | */ | |
459 | ||
460 | return 0; | |
461 | } | |
462 | ||
463 | static int ultramca_remove(struct device *gen_dev) | |
464 | { | |
465 | struct mca_device *mca_dev = to_mca_device(gen_dev); | |
466 | struct net_device *dev = (struct net_device *)gen_dev->driver_data; | |
467 | ||
468 | if (dev) { | |
469 | /* NB: ultra_close_card() does free_irq */ | |
470 | int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; | |
471 | ||
472 | unregister_netdev(dev); | |
473 | mca_device_set_claim(mca_dev, 0); | |
474 | release_region(ioaddr, ULTRA_IO_EXTENT); | |
475 | iounmap(ei_status.mem); | |
476 | free_netdev(dev); | |
477 | } | |
478 | return 0; | |
479 | } | |
480 | ||
481 | ||
482 | static struct mca_driver ultra_driver = { | |
483 | .id_table = smc_mca_adapter_ids, | |
484 | .driver = { | |
485 | .name = "smc-mca", | |
486 | .bus = &mca_bus_type, | |
487 | .probe = ultramca_probe, | |
488 | .remove = ultramca_remove, | |
489 | } | |
490 | }; | |
491 | ||
492 | static int __init ultramca_init_module(void) | |
493 | { | |
494 | if(!MCA_bus) | |
495 | return -ENXIO; | |
496 | ||
497 | mca_register_driver(&ultra_driver); | |
498 | ||
499 | return ultra_found ? 0 : -ENXIO; | |
500 | } | |
501 | ||
502 | static void __exit ultramca_cleanup_module(void) | |
503 | { | |
504 | mca_unregister_driver(&ultra_driver); | |
505 | } | |
506 | module_init(ultramca_init_module); | |
507 | module_exit(ultramca_cleanup_module); | |
508 |