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1da177e4 LT |
1 | /* ne.c: A general non-shared-memory NS8390 ethernet driver for linux. */ |
2 | /* | |
3 | Written 1992-94 by Donald Becker. | |
4 | ||
5 | Copyright 1993 United States Government as represented by the | |
6 | Director, National Security Agency. | |
7 | ||
8 | This software may be used and distributed according to the terms | |
9 | of the GNU General Public License, incorporated herein by reference. | |
10 | ||
11 | The author may be reached as becker@scyld.com, or C/O | |
12 | Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403 | |
13 | ||
14 | This driver should work with many programmed-I/O 8390-based ethernet | |
15 | boards. Currently it supports the NE1000, NE2000, many clones, | |
16 | and some Cabletron products. | |
17 | ||
18 | Changelog: | |
19 | ||
20 | Paul Gortmaker : use ENISR_RDC to monitor Tx PIO uploads, made | |
21 | sanity checks and bad clone support optional. | |
22 | Paul Gortmaker : new reset code, reset card after probe at boot. | |
23 | Paul Gortmaker : multiple card support for module users. | |
24 | Paul Gortmaker : Support for PCI ne2k clones, similar to lance.c | |
25 | Paul Gortmaker : Allow users with bad cards to avoid full probe. | |
26 | Paul Gortmaker : PCI probe changes, more PCI cards supported. | |
27 | rjohnson@analogic.com : Changed init order so an interrupt will only | |
28 | occur after memory is allocated for dev->priv. Deallocated memory | |
29 | last in cleanup_modue() | |
30 | Richard Guenther : Added support for ISAPnP cards | |
31 | Paul Gortmaker : Discontinued PCI support - use ne2k-pci.c instead. | |
32 | Hayato Fujiwara : Add m32r support. | |
33 | ||
34 | */ | |
35 | ||
36 | /* Routines for the NatSemi-based designs (NE[12]000). */ | |
37 | ||
38 | static const char version1[] = | |
39 | "ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)\n"; | |
40 | static const char version2[] = | |
41 | "Last modified Nov 1, 2000 by Paul Gortmaker\n"; | |
42 | ||
43 | ||
44 | #include <linux/module.h> | |
45 | #include <linux/kernel.h> | |
46 | #include <linux/errno.h> | |
47 | #include <linux/isapnp.h> | |
48 | #include <linux/init.h> | |
49 | #include <linux/interrupt.h> | |
50 | #include <linux/delay.h> | |
51 | #include <linux/netdevice.h> | |
52 | #include <linux/etherdevice.h> | |
ff5688ae | 53 | #include <linux/jiffies.h> |
a4d542b9 | 54 | #include <linux/platform_device.h> |
1da177e4 LT |
55 | |
56 | #include <asm/system.h> | |
57 | #include <asm/io.h> | |
58 | ||
59 | #include "8390.h" | |
60 | ||
61 | #define DRV_NAME "ne" | |
62 | ||
63 | /* Some defines that people can play with if so inclined. */ | |
64 | ||
65 | /* Do we support clones that don't adhere to 14,15 of the SAprom ? */ | |
66 | #define SUPPORT_NE_BAD_CLONES | |
67 | ||
68 | /* Do we perform extra sanity checks on stuff ? */ | |
69 | /* #define NE_SANITY_CHECK */ | |
70 | ||
71 | /* Do we implement the read before write bugfix ? */ | |
72 | /* #define NE_RW_BUGFIX */ | |
73 | ||
74 | /* Do we have a non std. amount of memory? (in units of 256 byte pages) */ | |
75 | /* #define PACKETBUF_MEMSIZE 0x40 */ | |
76 | ||
1c08bf10 AN |
77 | #if !defined(MODULE) && (defined(CONFIG_ISA) || defined(CONFIG_M32R)) |
78 | /* Do we need a portlist for the ISA auto-probe ? */ | |
79 | #define NEEDS_PORTLIST | |
80 | #endif | |
81 | ||
1da177e4 | 82 | /* A zero-terminated list of I/O addresses to be probed at boot. */ |
1c08bf10 | 83 | #ifdef NEEDS_PORTLIST |
1da177e4 LT |
84 | static unsigned int netcard_portlist[] __initdata = { |
85 | 0x300, 0x280, 0x320, 0x340, 0x360, 0x380, 0 | |
86 | }; | |
87 | #endif | |
88 | ||
89 | static struct isapnp_device_id isapnp_clone_list[] __initdata = { | |
90 | { ISAPNP_CARD_ID('A','X','E',0x2011), | |
91 | ISAPNP_VENDOR('A','X','E'), ISAPNP_FUNCTION(0x2011), | |
92 | (long) "NetGear EA201" }, | |
93 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
94 | ISAPNP_VENDOR('E','D','I'), ISAPNP_FUNCTION(0x0216), | |
95 | (long) "NN NE2000" }, | |
96 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
97 | ISAPNP_VENDOR('P','N','P'), ISAPNP_FUNCTION(0x80d6), | |
98 | (long) "Generic PNP" }, | |
99 | { } /* terminate list */ | |
100 | }; | |
101 | ||
102 | MODULE_DEVICE_TABLE(isapnp, isapnp_clone_list); | |
103 | ||
104 | #ifdef SUPPORT_NE_BAD_CLONES | |
105 | /* A list of bad clones that we none-the-less recognize. */ | |
106 | static struct { const char *name8, *name16; unsigned char SAprefix[4];} | |
107 | bad_clone_list[] __initdata = { | |
108 | {"DE100", "DE200", {0x00, 0xDE, 0x01,}}, | |
109 | {"DE120", "DE220", {0x00, 0x80, 0xc8,}}, | |
110 | {"DFI1000", "DFI2000", {'D', 'F', 'I',}}, /* Original, eh? */ | |
111 | {"EtherNext UTP8", "EtherNext UTP16", {0x00, 0x00, 0x79}}, | |
112 | {"NE1000","NE2000-invalid", {0x00, 0x00, 0xd8}}, /* Ancient real NE1000. */ | |
113 | {"NN1000", "NN2000", {0x08, 0x03, 0x08}}, /* Outlaw no-name clone. */ | |
114 | {"4-DIM8","4-DIM16", {0x00,0x00,0x4d,}}, /* Outlaw 4-Dimension cards. */ | |
115 | {"Con-Intl_8", "Con-Intl_16", {0x00, 0x00, 0x24}}, /* Connect Int'nl */ | |
116 | {"ET-100","ET-200", {0x00, 0x45, 0x54}}, /* YANG and YA clone */ | |
117 | {"COMPEX","COMPEX16",{0x00,0x80,0x48}}, /* Broken ISA Compex cards */ | |
118 | {"E-LAN100", "E-LAN200", {0x00, 0x00, 0x5d}}, /* Broken ne1000 clones */ | |
119 | {"PCM-4823", "PCM-4823", {0x00, 0xc0, 0x6c}}, /* Broken Advantech MoBo */ | |
120 | {"REALTEK", "RTL8019", {0x00, 0x00, 0xe8}}, /* no-name with Realtek chip */ | |
c7e65c17 | 121 | #ifdef CONFIG_MACH_TX49XX |
9cc975e0 RB |
122 | {"RBHMA4X00-RTL8019", "RBHMA4X00/RTL8019", {0x00, 0x60, 0x0a}}, /* Toshiba built-in */ |
123 | #endif | |
1da177e4 LT |
124 | {"LCS-8834", "LCS-8836", {0x04, 0x04, 0x37}}, /* ShinyNet (SET) */ |
125 | {NULL,} | |
126 | }; | |
127 | #endif | |
128 | ||
129 | /* ---- No user-serviceable parts below ---- */ | |
130 | ||
131 | #define NE_BASE (dev->base_addr) | |
132 | #define NE_CMD 0x00 | |
133 | #define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ | |
134 | #define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ | |
135 | #define NE_IO_EXTENT 0x20 | |
136 | ||
137 | #define NE1SM_START_PG 0x20 /* First page of TX buffer */ | |
138 | #define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ | |
139 | #define NESM_START_PG 0x40 /* First page of TX buffer */ | |
140 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ | |
141 | ||
44456d37 | 142 | #if defined(CONFIG_PLAT_MAPPI) |
1da177e4 | 143 | # define DCR_VAL 0x4b |
aedc0e52 | 144 | #elif defined(CONFIG_PLAT_OAKS32R) || \ |
c7e65c17 | 145 | defined(CONFIG_MACH_TX49XX) |
aedc0e52 | 146 | # define DCR_VAL 0x48 /* 8-bit mode */ |
1da177e4 LT |
147 | #else |
148 | # define DCR_VAL 0x49 | |
149 | #endif | |
150 | ||
f0e93c10 | 151 | static int ne_probe1(struct net_device *dev, unsigned long ioaddr); |
1da177e4 LT |
152 | static int ne_probe_isapnp(struct net_device *dev); |
153 | ||
154 | static int ne_open(struct net_device *dev); | |
155 | static int ne_close(struct net_device *dev); | |
156 | ||
157 | static void ne_reset_8390(struct net_device *dev); | |
158 | static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | |
159 | int ring_page); | |
160 | static void ne_block_input(struct net_device *dev, int count, | |
161 | struct sk_buff *skb, int ring_offset); | |
162 | static void ne_block_output(struct net_device *dev, const int count, | |
163 | const unsigned char *buf, const int start_page); | |
164 | ||
6aa20a22 | 165 | |
1da177e4 LT |
166 | /* Probe for various non-shared-memory ethercards. |
167 | ||
168 | NEx000-clone boards have a Station Address PROM (SAPROM) in the packet | |
169 | buffer memory space. NE2000 clones have 0x57,0x57 in bytes 0x0e,0x0f of | |
170 | the SAPROM, while other supposed NE2000 clones must be detected by their | |
171 | SA prefix. | |
172 | ||
173 | Reading the SAPROM from a word-wide card with the 8390 set in byte-wide | |
174 | mode results in doubled values, which can be detected and compensated for. | |
175 | ||
176 | The probe is also responsible for initializing the card and filling | |
177 | in the 'dev' and 'ei_status' structures. | |
178 | ||
179 | We use the minimum memory size for some ethercard product lines, iff we can't | |
180 | distinguish models. You can increase the packet buffer size by setting | |
181 | PACKETBUF_MEMSIZE. Reported Cabletron packet buffer locations are: | |
182 | E1010 starts at 0x100 and ends at 0x2000. | |
183 | E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory") | |
184 | E2010 starts at 0x100 and ends at 0x4000. | |
185 | E2010-x starts at 0x100 and ends at 0xffff. */ | |
186 | ||
187 | static int __init do_ne_probe(struct net_device *dev) | |
188 | { | |
f0e93c10 | 189 | unsigned long base_addr = dev->base_addr; |
1c08bf10 | 190 | #ifdef NEEDS_PORTLIST |
1da177e4 LT |
191 | int orig_irq = dev->irq; |
192 | #endif | |
193 | ||
1da177e4 LT |
194 | /* First check any supplied i/o locations. User knows best. <cough> */ |
195 | if (base_addr > 0x1ff) /* Check a single specified location. */ | |
196 | return ne_probe1(dev, base_addr); | |
197 | else if (base_addr != 0) /* Don't probe at all. */ | |
198 | return -ENXIO; | |
199 | ||
200 | /* Then look for any installed ISAPnP clones */ | |
201 | if (isapnp_present() && (ne_probe_isapnp(dev) == 0)) | |
202 | return 0; | |
203 | ||
1c08bf10 | 204 | #ifdef NEEDS_PORTLIST |
1da177e4 LT |
205 | /* Last resort. The semi-risky ISA auto-probe. */ |
206 | for (base_addr = 0; netcard_portlist[base_addr] != 0; base_addr++) { | |
207 | int ioaddr = netcard_portlist[base_addr]; | |
208 | dev->irq = orig_irq; | |
209 | if (ne_probe1(dev, ioaddr) == 0) | |
210 | return 0; | |
211 | } | |
212 | #endif | |
213 | ||
214 | return -ENODEV; | |
215 | } | |
216 | ||
1da177e4 LT |
217 | #ifndef MODULE |
218 | struct net_device * __init ne_probe(int unit) | |
219 | { | |
055e5110 | 220 | struct net_device *dev = alloc_eip_netdev(); |
1da177e4 LT |
221 | int err; |
222 | ||
223 | if (!dev) | |
224 | return ERR_PTR(-ENOMEM); | |
225 | ||
226 | sprintf(dev->name, "eth%d", unit); | |
227 | netdev_boot_setup_check(dev); | |
228 | ||
229 | err = do_ne_probe(dev); | |
230 | if (err) | |
231 | goto out; | |
1da177e4 | 232 | return dev; |
1da177e4 LT |
233 | out: |
234 | free_netdev(dev); | |
235 | return ERR_PTR(err); | |
236 | } | |
237 | #endif | |
238 | ||
239 | static int __init ne_probe_isapnp(struct net_device *dev) | |
240 | { | |
241 | int i; | |
242 | ||
243 | for (i = 0; isapnp_clone_list[i].vendor != 0; i++) { | |
244 | struct pnp_dev *idev = NULL; | |
245 | ||
246 | while ((idev = pnp_find_dev(NULL, | |
247 | isapnp_clone_list[i].vendor, | |
248 | isapnp_clone_list[i].function, | |
249 | idev))) { | |
250 | /* Avoid already found cards from previous calls */ | |
251 | if (pnp_device_attach(idev) < 0) | |
252 | continue; | |
253 | if (pnp_activate_dev(idev) < 0) { | |
254 | pnp_device_detach(idev); | |
255 | continue; | |
256 | } | |
257 | /* if no io and irq, search for next */ | |
258 | if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) { | |
259 | pnp_device_detach(idev); | |
260 | continue; | |
261 | } | |
262 | /* found it */ | |
263 | dev->base_addr = pnp_port_start(idev, 0); | |
264 | dev->irq = pnp_irq(idev, 0); | |
265 | printk(KERN_INFO "ne.c: ISAPnP reports %s at i/o %#lx, irq %d.\n", | |
266 | (char *) isapnp_clone_list[i].driver_data, | |
267 | dev->base_addr, dev->irq); | |
268 | if (ne_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */ | |
269 | printk(KERN_ERR "ne.c: Probe of ISAPnP card at %#lx failed.\n", dev->base_addr); | |
270 | pnp_device_detach(idev); | |
271 | return -ENXIO; | |
272 | } | |
273 | ei_status.priv = (unsigned long)idev; | |
274 | break; | |
275 | } | |
276 | if (!idev) | |
277 | continue; | |
278 | return 0; | |
279 | } | |
280 | ||
281 | return -ENODEV; | |
282 | } | |
283 | ||
f0e93c10 | 284 | static int __init ne_probe1(struct net_device *dev, unsigned long ioaddr) |
1da177e4 LT |
285 | { |
286 | int i; | |
287 | unsigned char SA_prom[32]; | |
288 | int wordlength = 2; | |
289 | const char *name = NULL; | |
290 | int start_page, stop_page; | |
291 | int neX000, ctron, copam, bad_card; | |
292 | int reg0, ret; | |
293 | static unsigned version_printed; | |
0795af57 | 294 | DECLARE_MAC_BUF(mac); |
1da177e4 LT |
295 | |
296 | if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME)) | |
297 | return -EBUSY; | |
298 | ||
299 | reg0 = inb_p(ioaddr); | |
300 | if (reg0 == 0xFF) { | |
301 | ret = -ENODEV; | |
302 | goto err_out; | |
303 | } | |
304 | ||
305 | /* Do a preliminary verification that we have a 8390. */ | |
306 | { | |
307 | int regd; | |
308 | outb_p(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); | |
309 | regd = inb_p(ioaddr + 0x0d); | |
310 | outb_p(0xff, ioaddr + 0x0d); | |
311 | outb_p(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); | |
312 | inb_p(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ | |
313 | if (inb_p(ioaddr + EN0_COUNTER0) != 0) { | |
314 | outb_p(reg0, ioaddr); | |
315 | outb_p(regd, ioaddr + 0x0d); /* Restore the old values. */ | |
316 | ret = -ENODEV; | |
317 | goto err_out; | |
318 | } | |
319 | } | |
320 | ||
321 | if (ei_debug && version_printed++ == 0) | |
322 | printk(KERN_INFO "%s" KERN_INFO "%s", version1, version2); | |
323 | ||
f0e93c10 | 324 | printk(KERN_INFO "NE*000 ethercard probe at %#3lx:", ioaddr); |
1da177e4 LT |
325 | |
326 | /* A user with a poor card that fails to ack the reset, or that | |
327 | does not have a valid 0x57,0x57 signature can still use this | |
328 | without having to recompile. Specifying an i/o address along | |
329 | with an otherwise unused dev->mem_end value of "0xBAD" will | |
330 | cause the driver to skip these parts of the probe. */ | |
331 | ||
332 | bad_card = ((dev->base_addr != 0) && (dev->mem_end == 0xbad)); | |
333 | ||
334 | /* Reset card. Who knows what dain-bramaged state it was left in. */ | |
335 | ||
336 | { | |
337 | unsigned long reset_start_time = jiffies; | |
338 | ||
339 | /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ | |
340 | outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); | |
341 | ||
342 | while ((inb_p(ioaddr + EN0_ISR) & ENISR_RESET) == 0) | |
ff5688ae | 343 | if (time_after(jiffies, reset_start_time + 2*HZ/100)) { |
1da177e4 LT |
344 | if (bad_card) { |
345 | printk(" (warning: no reset ack)"); | |
346 | break; | |
347 | } else { | |
348 | printk(" not found (no reset ack).\n"); | |
349 | ret = -ENODEV; | |
350 | goto err_out; | |
351 | } | |
352 | } | |
353 | ||
354 | outb_p(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ | |
355 | } | |
356 | ||
357 | /* Read the 16 bytes of station address PROM. | |
f0084a36 | 358 | We must first initialize registers, similar to NS8390p_init(eifdev, 0). |
1da177e4 LT |
359 | We can't reliably read the SAPROM address without this. |
360 | (I learned the hard way!). */ | |
361 | { | |
362 | struct {unsigned char value, offset; } program_seq[] = | |
363 | { | |
364 | {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ | |
365 | {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */ | |
366 | {0x00, EN0_RCNTLO}, /* Clear the count regs. */ | |
367 | {0x00, EN0_RCNTHI}, | |
368 | {0x00, EN0_IMR}, /* Mask completion irq. */ | |
369 | {0xFF, EN0_ISR}, | |
370 | {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ | |
371 | {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ | |
372 | {32, EN0_RCNTLO}, | |
373 | {0x00, EN0_RCNTHI}, | |
374 | {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ | |
375 | {0x00, EN0_RSARHI}, | |
376 | {E8390_RREAD+E8390_START, E8390_CMD}, | |
377 | }; | |
378 | ||
ff8ac609 | 379 | for (i = 0; i < ARRAY_SIZE(program_seq); i++) |
1da177e4 LT |
380 | outb_p(program_seq[i].value, ioaddr + program_seq[i].offset); |
381 | ||
382 | } | |
383 | for(i = 0; i < 32 /*sizeof(SA_prom)*/; i+=2) { | |
384 | SA_prom[i] = inb(ioaddr + NE_DATAPORT); | |
385 | SA_prom[i+1] = inb(ioaddr + NE_DATAPORT); | |
386 | if (SA_prom[i] != SA_prom[i+1]) | |
387 | wordlength = 1; | |
388 | } | |
389 | ||
390 | if (wordlength == 2) | |
391 | { | |
392 | for (i = 0; i < 16; i++) | |
393 | SA_prom[i] = SA_prom[i+i]; | |
394 | /* We must set the 8390 for word mode. */ | |
395 | outb_p(DCR_VAL, ioaddr + EN0_DCFG); | |
396 | start_page = NESM_START_PG; | |
aedc0e52 SS |
397 | |
398 | /* | |
399 | * Realtek RTL8019AS datasheet says that the PSTOP register | |
400 | * shouldn't exceed 0x60 in 8-bit mode. | |
401 | * This chip can be identified by reading the signature from | |
402 | * the remote byte count registers (otherwise write-only)... | |
403 | */ | |
404 | if ((DCR_VAL & 0x01) == 0 && /* 8-bit mode */ | |
405 | inb(ioaddr + EN0_RCNTLO) == 0x50 && | |
406 | inb(ioaddr + EN0_RCNTHI) == 0x70) | |
407 | stop_page = 0x60; | |
408 | else | |
409 | stop_page = NESM_STOP_PG; | |
1da177e4 LT |
410 | } else { |
411 | start_page = NE1SM_START_PG; | |
aedc0e52 | 412 | stop_page = NE1SM_STOP_PG; |
1da177e4 LT |
413 | } |
414 | ||
415 | #if defined(CONFIG_PLAT_MAPPI) || defined(CONFIG_PLAT_OAKS32R) | |
416 | neX000 = ((SA_prom[14] == 0x57 && SA_prom[15] == 0x57) | |
417 | || (SA_prom[14] == 0x42 && SA_prom[15] == 0x42)); | |
418 | #else | |
419 | neX000 = (SA_prom[14] == 0x57 && SA_prom[15] == 0x57); | |
420 | #endif | |
421 | ctron = (SA_prom[0] == 0x00 && SA_prom[1] == 0x00 && SA_prom[2] == 0x1d); | |
422 | copam = (SA_prom[14] == 0x49 && SA_prom[15] == 0x00); | |
423 | ||
424 | /* Set up the rest of the parameters. */ | |
425 | if (neX000 || bad_card || copam) { | |
426 | name = (wordlength == 2) ? "NE2000" : "NE1000"; | |
427 | } | |
428 | else if (ctron) | |
429 | { | |
430 | name = (wordlength == 2) ? "Ctron-8" : "Ctron-16"; | |
431 | start_page = 0x01; | |
432 | stop_page = (wordlength == 2) ? 0x40 : 0x20; | |
433 | } | |
434 | else | |
435 | { | |
436 | #ifdef SUPPORT_NE_BAD_CLONES | |
437 | /* Ack! Well, there might be a *bad* NE*000 clone there. | |
438 | Check for total bogus addresses. */ | |
439 | for (i = 0; bad_clone_list[i].name8; i++) | |
440 | { | |
441 | if (SA_prom[0] == bad_clone_list[i].SAprefix[0] && | |
442 | SA_prom[1] == bad_clone_list[i].SAprefix[1] && | |
443 | SA_prom[2] == bad_clone_list[i].SAprefix[2]) | |
444 | { | |
445 | if (wordlength == 2) | |
446 | { | |
447 | name = bad_clone_list[i].name16; | |
448 | } else { | |
449 | name = bad_clone_list[i].name8; | |
450 | } | |
451 | break; | |
452 | } | |
453 | } | |
454 | if (bad_clone_list[i].name8 == NULL) | |
455 | { | |
456 | printk(" not found (invalid signature %2.2x %2.2x).\n", | |
457 | SA_prom[14], SA_prom[15]); | |
458 | ret = -ENXIO; | |
459 | goto err_out; | |
460 | } | |
461 | #else | |
462 | printk(" not found.\n"); | |
463 | ret = -ENXIO; | |
464 | goto err_out; | |
465 | #endif | |
466 | } | |
467 | ||
468 | if (dev->irq < 2) | |
469 | { | |
470 | unsigned long cookie = probe_irq_on(); | |
471 | outb_p(0x50, ioaddr + EN0_IMR); /* Enable one interrupt. */ | |
472 | outb_p(0x00, ioaddr + EN0_RCNTLO); | |
473 | outb_p(0x00, ioaddr + EN0_RCNTHI); | |
474 | outb_p(E8390_RREAD+E8390_START, ioaddr); /* Trigger it... */ | |
475 | mdelay(10); /* wait 10ms for interrupt to propagate */ | |
476 | outb_p(0x00, ioaddr + EN0_IMR); /* Mask it again. */ | |
477 | dev->irq = probe_irq_off(cookie); | |
478 | if (ei_debug > 2) | |
479 | printk(" autoirq is %d\n", dev->irq); | |
480 | } else if (dev->irq == 2) | |
481 | /* Fixup for users that don't know that IRQ 2 is really IRQ 9, | |
482 | or don't know which one to set. */ | |
483 | dev->irq = 9; | |
484 | ||
485 | if (! dev->irq) { | |
486 | printk(" failed to detect IRQ line.\n"); | |
487 | ret = -EAGAIN; | |
488 | goto err_out; | |
489 | } | |
490 | ||
491 | /* Snarf the interrupt now. There's no point in waiting since we cannot | |
492 | share and the board will usually be enabled. */ | |
055e5110 | 493 | ret = request_irq(dev->irq, eip_interrupt, 0, name, dev); |
1da177e4 LT |
494 | if (ret) { |
495 | printk (" unable to get IRQ %d (errno=%d).\n", dev->irq, ret); | |
496 | goto err_out; | |
497 | } | |
498 | ||
499 | dev->base_addr = ioaddr; | |
500 | ||
501 | #ifdef CONFIG_PLAT_MAPPI | |
502 | outb_p(E8390_NODMA + E8390_PAGE1 + E8390_STOP, | |
503 | ioaddr + E8390_CMD); /* 0x61 */ | |
504 | for (i = 0 ; i < ETHER_ADDR_LEN ; i++) { | |
505 | dev->dev_addr[i] = SA_prom[i] | |
506 | = inb_p(ioaddr + EN1_PHYS_SHIFT(i)); | |
1da177e4 LT |
507 | } |
508 | #else | |
509 | for(i = 0; i < ETHER_ADDR_LEN; i++) { | |
1da177e4 LT |
510 | dev->dev_addr[i] = SA_prom[i]; |
511 | } | |
512 | #endif | |
513 | ||
0795af57 | 514 | printk("%s\n", print_mac(mac, dev->dev_addr)); |
1da177e4 LT |
515 | |
516 | ei_status.name = name; | |
517 | ei_status.tx_start_page = start_page; | |
518 | ei_status.stop_page = stop_page; | |
9cc975e0 | 519 | |
aedc0e52 SS |
520 | /* Use 16-bit mode only if this wasn't overridden by DCR_VAL */ |
521 | ei_status.word16 = (wordlength == 2 && (DCR_VAL & 0x01)); | |
1da177e4 LT |
522 | |
523 | ei_status.rx_start_page = start_page + TX_PAGES; | |
524 | #ifdef PACKETBUF_MEMSIZE | |
525 | /* Allow the packet buffer size to be overridden by know-it-alls. */ | |
526 | ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; | |
527 | #endif | |
528 | ||
529 | ei_status.reset_8390 = &ne_reset_8390; | |
530 | ei_status.block_input = &ne_block_input; | |
531 | ei_status.block_output = &ne_block_output; | |
532 | ei_status.get_8390_hdr = &ne_get_8390_hdr; | |
533 | ei_status.priv = 0; | |
534 | dev->open = &ne_open; | |
535 | dev->stop = &ne_close; | |
536 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
055e5110 | 537 | dev->poll_controller = eip_poll; |
1da177e4 | 538 | #endif |
d02a4e31 | 539 | NS8390p_init(dev, 0); |
b1fc5505 | 540 | |
541 | ret = register_netdev(dev); | |
542 | if (ret) | |
543 | goto out_irq; | |
f0e93c10 AN |
544 | printk(KERN_INFO "%s: %s found at %#lx, using IRQ %d.\n", |
545 | dev->name, name, ioaddr, dev->irq); | |
1da177e4 LT |
546 | return 0; |
547 | ||
b1fc5505 | 548 | out_irq: |
549 | free_irq(dev->irq, dev); | |
1da177e4 LT |
550 | err_out: |
551 | release_region(ioaddr, NE_IO_EXTENT); | |
552 | return ret; | |
553 | } | |
554 | ||
555 | static int ne_open(struct net_device *dev) | |
556 | { | |
055e5110 | 557 | eip_open(dev); |
1da177e4 LT |
558 | return 0; |
559 | } | |
560 | ||
561 | static int ne_close(struct net_device *dev) | |
562 | { | |
563 | if (ei_debug > 1) | |
564 | printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name); | |
055e5110 | 565 | eip_close(dev); |
1da177e4 LT |
566 | return 0; |
567 | } | |
568 | ||
569 | /* Hard reset the card. This used to pause for the same period that a | |
570 | 8390 reset command required, but that shouldn't be necessary. */ | |
571 | ||
572 | static void ne_reset_8390(struct net_device *dev) | |
573 | { | |
574 | unsigned long reset_start_time = jiffies; | |
575 | ||
576 | if (ei_debug > 1) | |
577 | printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies); | |
578 | ||
579 | /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ | |
580 | outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); | |
581 | ||
582 | ei_status.txing = 0; | |
583 | ei_status.dmaing = 0; | |
584 | ||
585 | /* This check _should_not_ be necessary, omit eventually. */ | |
586 | while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) | |
ff5688ae | 587 | if (time_after(jiffies, reset_start_time + 2*HZ/100)) { |
1da177e4 LT |
588 | printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n", dev->name); |
589 | break; | |
590 | } | |
591 | outb_p(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ | |
592 | } | |
593 | ||
594 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
595 | we don't need to be concerned with ring wrap as the header will be at | |
596 | the start of a page, so we optimize accordingly. */ | |
597 | ||
598 | static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
599 | { | |
600 | int nic_base = dev->base_addr; | |
601 | ||
602 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
603 | ||
604 | if (ei_status.dmaing) | |
605 | { | |
606 | printk(KERN_EMERG "%s: DMAing conflict in ne_get_8390_hdr " | |
607 | "[DMAstat:%d][irqlock:%d].\n", | |
608 | dev->name, ei_status.dmaing, ei_status.irqlock); | |
609 | return; | |
610 | } | |
611 | ||
612 | ei_status.dmaing |= 0x01; | |
613 | outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
614 | outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); | |
615 | outb_p(0, nic_base + EN0_RCNTHI); | |
616 | outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */ | |
617 | outb_p(ring_page, nic_base + EN0_RSARHI); | |
618 | outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
619 | ||
620 | if (ei_status.word16) | |
621 | insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); | |
622 | else | |
623 | insb(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)); | |
624 | ||
625 | outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
626 | ei_status.dmaing &= ~0x01; | |
627 | ||
628 | le16_to_cpus(&hdr->count); | |
629 | } | |
630 | ||
631 | /* Block input and output, similar to the Crynwr packet driver. If you | |
632 | are porting to a new ethercard, look at the packet driver source for hints. | |
633 | The NEx000 doesn't share the on-board packet memory -- you have to put | |
634 | the packet out through the "remote DMA" dataport using outb. */ | |
635 | ||
636 | static void ne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | |
637 | { | |
638 | #ifdef NE_SANITY_CHECK | |
639 | int xfer_count = count; | |
640 | #endif | |
641 | int nic_base = dev->base_addr; | |
642 | char *buf = skb->data; | |
643 | ||
644 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
645 | if (ei_status.dmaing) | |
646 | { | |
647 | printk(KERN_EMERG "%s: DMAing conflict in ne_block_input " | |
648 | "[DMAstat:%d][irqlock:%d].\n", | |
649 | dev->name, ei_status.dmaing, ei_status.irqlock); | |
650 | return; | |
651 | } | |
652 | ei_status.dmaing |= 0x01; | |
653 | outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
654 | outb_p(count & 0xff, nic_base + EN0_RCNTLO); | |
655 | outb_p(count >> 8, nic_base + EN0_RCNTHI); | |
656 | outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO); | |
657 | outb_p(ring_offset >> 8, nic_base + EN0_RSARHI); | |
658 | outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
659 | if (ei_status.word16) | |
660 | { | |
661 | insw(NE_BASE + NE_DATAPORT,buf,count>>1); | |
662 | if (count & 0x01) | |
663 | { | |
664 | buf[count-1] = inb(NE_BASE + NE_DATAPORT); | |
665 | #ifdef NE_SANITY_CHECK | |
666 | xfer_count++; | |
667 | #endif | |
668 | } | |
669 | } else { | |
670 | insb(NE_BASE + NE_DATAPORT, buf, count); | |
671 | } | |
672 | ||
673 | #ifdef NE_SANITY_CHECK | |
674 | /* This was for the ALPHA version only, but enough people have | |
675 | been encountering problems so it is still here. If you see | |
676 | this message you either 1) have a slightly incompatible clone | |
677 | or 2) have noise/speed problems with your bus. */ | |
678 | ||
679 | if (ei_debug > 1) | |
680 | { | |
681 | /* DMA termination address check... */ | |
682 | int addr, tries = 20; | |
683 | do { | |
684 | /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here | |
685 | -- it's broken for Rx on some cards! */ | |
686 | int high = inb_p(nic_base + EN0_RSARHI); | |
687 | int low = inb_p(nic_base + EN0_RSARLO); | |
688 | addr = (high << 8) + low; | |
689 | if (((ring_offset + xfer_count) & 0xff) == low) | |
690 | break; | |
691 | } while (--tries > 0); | |
692 | if (tries <= 0) | |
693 | printk(KERN_WARNING "%s: RX transfer address mismatch," | |
694 | "%#4.4x (expected) vs. %#4.4x (actual).\n", | |
695 | dev->name, ring_offset + xfer_count, addr); | |
696 | } | |
697 | #endif | |
698 | outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
699 | ei_status.dmaing &= ~0x01; | |
700 | } | |
701 | ||
702 | static void ne_block_output(struct net_device *dev, int count, | |
703 | const unsigned char *buf, const int start_page) | |
704 | { | |
705 | int nic_base = NE_BASE; | |
706 | unsigned long dma_start; | |
707 | #ifdef NE_SANITY_CHECK | |
708 | int retries = 0; | |
709 | #endif | |
710 | ||
711 | /* Round the count up for word writes. Do we need to do this? | |
712 | What effect will an odd byte count have on the 8390? | |
713 | I should check someday. */ | |
714 | ||
715 | if (ei_status.word16 && (count & 0x01)) | |
716 | count++; | |
717 | ||
718 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
719 | if (ei_status.dmaing) | |
720 | { | |
721 | printk(KERN_EMERG "%s: DMAing conflict in ne_block_output." | |
722 | "[DMAstat:%d][irqlock:%d]\n", | |
723 | dev->name, ei_status.dmaing, ei_status.irqlock); | |
724 | return; | |
725 | } | |
726 | ei_status.dmaing |= 0x01; | |
727 | /* We should already be in page 0, but to be safe... */ | |
728 | outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); | |
729 | ||
730 | #ifdef NE_SANITY_CHECK | |
731 | retry: | |
732 | #endif | |
733 | ||
734 | #ifdef NE8390_RW_BUGFIX | |
735 | /* Handle the read-before-write bug the same way as the | |
736 | Crynwr packet driver -- the NatSemi method doesn't work. | |
737 | Actually this doesn't always work either, but if you have | |
738 | problems with your NEx000 this is better than nothing! */ | |
739 | ||
740 | outb_p(0x42, nic_base + EN0_RCNTLO); | |
741 | outb_p(0x00, nic_base + EN0_RCNTHI); | |
742 | outb_p(0x42, nic_base + EN0_RSARLO); | |
743 | outb_p(0x00, nic_base + EN0_RSARHI); | |
744 | outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
745 | /* Make certain that the dummy read has occurred. */ | |
746 | udelay(6); | |
747 | #endif | |
748 | ||
749 | outb_p(ENISR_RDC, nic_base + EN0_ISR); | |
750 | ||
751 | /* Now the normal output. */ | |
752 | outb_p(count & 0xff, nic_base + EN0_RCNTLO); | |
753 | outb_p(count >> 8, nic_base + EN0_RCNTHI); | |
754 | outb_p(0x00, nic_base + EN0_RSARLO); | |
755 | outb_p(start_page, nic_base + EN0_RSARHI); | |
756 | ||
757 | outb_p(E8390_RWRITE+E8390_START, nic_base + NE_CMD); | |
758 | if (ei_status.word16) { | |
759 | outsw(NE_BASE + NE_DATAPORT, buf, count>>1); | |
760 | } else { | |
761 | outsb(NE_BASE + NE_DATAPORT, buf, count); | |
762 | } | |
763 | ||
764 | dma_start = jiffies; | |
765 | ||
766 | #ifdef NE_SANITY_CHECK | |
767 | /* This was for the ALPHA version only, but enough people have | |
768 | been encountering problems so it is still here. */ | |
769 | ||
770 | if (ei_debug > 1) | |
771 | { | |
772 | /* DMA termination address check... */ | |
773 | int addr, tries = 20; | |
774 | do { | |
775 | int high = inb_p(nic_base + EN0_RSARHI); | |
776 | int low = inb_p(nic_base + EN0_RSARLO); | |
777 | addr = (high << 8) + low; | |
778 | if ((start_page << 8) + count == addr) | |
779 | break; | |
780 | } while (--tries > 0); | |
781 | ||
782 | if (tries <= 0) | |
783 | { | |
784 | printk(KERN_WARNING "%s: Tx packet transfer address mismatch," | |
785 | "%#4.4x (expected) vs. %#4.4x (actual).\n", | |
786 | dev->name, (start_page << 8) + count, addr); | |
787 | if (retries++ == 0) | |
788 | goto retry; | |
789 | } | |
790 | } | |
791 | #endif | |
792 | ||
793 | while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0) | |
ff5688ae | 794 | if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */ |
1da177e4 LT |
795 | printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name); |
796 | ne_reset_8390(dev); | |
d02a4e31 | 797 | NS8390p_init(dev, 1); |
1da177e4 LT |
798 | break; |
799 | } | |
800 | ||
801 | outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
802 | ei_status.dmaing &= ~0x01; | |
803 | return; | |
804 | } | |
805 | ||
a4d542b9 AN |
806 | static int __init ne_drv_probe(struct platform_device *pdev) |
807 | { | |
808 | struct net_device *dev; | |
809 | struct resource *res; | |
810 | int err, irq; | |
811 | ||
812 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
813 | irq = platform_get_irq(pdev, 0); | |
814 | if (!res || irq < 0) | |
815 | return -ENODEV; | |
816 | ||
055e5110 | 817 | dev = alloc_eip_netdev(); |
a4d542b9 AN |
818 | if (!dev) |
819 | return -ENOMEM; | |
820 | dev->irq = irq; | |
821 | dev->base_addr = res->start; | |
822 | err = do_ne_probe(dev); | |
823 | if (err) { | |
824 | free_netdev(dev); | |
825 | return err; | |
826 | } | |
827 | platform_set_drvdata(pdev, dev); | |
828 | return 0; | |
829 | } | |
830 | ||
831 | static int __exit ne_drv_remove(struct platform_device *pdev) | |
832 | { | |
833 | struct net_device *dev = platform_get_drvdata(pdev); | |
834 | ||
835 | unregister_netdev(dev); | |
836 | free_irq(dev->irq, dev); | |
837 | release_region(dev->base_addr, NE_IO_EXTENT); | |
838 | free_netdev(dev); | |
839 | return 0; | |
840 | } | |
841 | ||
842 | #ifdef CONFIG_PM | |
843 | static int ne_drv_suspend(struct platform_device *pdev, pm_message_t state) | |
844 | { | |
845 | struct net_device *dev = platform_get_drvdata(pdev); | |
846 | ||
847 | if (netif_running(dev)) | |
848 | netif_device_detach(dev); | |
849 | return 0; | |
850 | } | |
851 | ||
852 | static int ne_drv_resume(struct platform_device *pdev) | |
853 | { | |
854 | struct net_device *dev = platform_get_drvdata(pdev); | |
855 | ||
856 | if (netif_running(dev)) { | |
857 | ne_reset_8390(dev); | |
d02a4e31 | 858 | NS8390p_init(dev, 1); |
a4d542b9 AN |
859 | netif_device_attach(dev); |
860 | } | |
861 | return 0; | |
862 | } | |
863 | #else | |
864 | #define ne_drv_suspend NULL | |
865 | #define ne_drv_resume NULL | |
866 | #endif | |
867 | ||
868 | static struct platform_driver ne_driver = { | |
869 | .remove = __exit_p(ne_drv_remove), | |
870 | .suspend = ne_drv_suspend, | |
871 | .resume = ne_drv_resume, | |
872 | .driver = { | |
873 | .name = DRV_NAME, | |
874 | .owner = THIS_MODULE, | |
875 | }, | |
876 | }; | |
877 | ||
878 | static int __init ne_init(void) | |
879 | { | |
880 | return platform_driver_probe(&ne_driver, ne_drv_probe); | |
881 | } | |
882 | ||
883 | static void __exit ne_exit(void) | |
884 | { | |
885 | platform_driver_unregister(&ne_driver); | |
886 | } | |
6aa20a22 | 887 | |
1da177e4 LT |
888 | #ifdef MODULE |
889 | #define MAX_NE_CARDS 4 /* Max number of NE cards per module */ | |
890 | static struct net_device *dev_ne[MAX_NE_CARDS]; | |
891 | static int io[MAX_NE_CARDS]; | |
892 | static int irq[MAX_NE_CARDS]; | |
893 | static int bad[MAX_NE_CARDS]; /* 0xbad = bad sig or no reset ack */ | |
894 | ||
895 | module_param_array(io, int, NULL, 0); | |
896 | module_param_array(irq, int, NULL, 0); | |
897 | module_param_array(bad, int, NULL, 0); | |
898 | MODULE_PARM_DESC(io, "I/O base address(es),required"); | |
899 | MODULE_PARM_DESC(irq, "IRQ number(s)"); | |
900 | MODULE_PARM_DESC(bad, "Accept card(s) with bad signatures"); | |
901 | MODULE_DESCRIPTION("NE1000/NE2000 ISA/PnP Ethernet driver"); | |
902 | MODULE_LICENSE("GPL"); | |
903 | ||
904 | /* This is set up so that no ISA autoprobe takes place. We can't guarantee | |
905 | that the ne2k probe is the last 8390 based probe to take place (as it | |
906 | is at boot) and so the probe will get confused by any other 8390 cards. | |
907 | ISA device autoprobes on a running machine are not recommended anyway. */ | |
908 | ||
5d1f16c6 | 909 | int __init init_module(void) |
1da177e4 LT |
910 | { |
911 | int this_dev, found = 0; | |
a4d542b9 | 912 | int plat_found = !ne_init(); |
1da177e4 LT |
913 | |
914 | for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { | |
055e5110 | 915 | struct net_device *dev = alloc_eip_netdev(); |
1da177e4 LT |
916 | if (!dev) |
917 | break; | |
918 | dev->irq = irq[this_dev]; | |
919 | dev->mem_end = bad[this_dev]; | |
920 | dev->base_addr = io[this_dev]; | |
921 | if (do_ne_probe(dev) == 0) { | |
b1fc5505 | 922 | dev_ne[found++] = dev; |
923 | continue; | |
1da177e4 LT |
924 | } |
925 | free_netdev(dev); | |
a4d542b9 | 926 | if (found || plat_found) |
1da177e4 LT |
927 | break; |
928 | if (io[this_dev] != 0) | |
929 | printk(KERN_WARNING "ne.c: No NE*000 card found at i/o = %#x\n", io[this_dev]); | |
930 | else | |
931 | printk(KERN_NOTICE "ne.c: You must supply \"io=0xNNN\" value(s) for ISA cards.\n"); | |
932 | return -ENXIO; | |
933 | } | |
a4d542b9 | 934 | if (found || plat_found) |
1da177e4 LT |
935 | return 0; |
936 | return -ENODEV; | |
937 | } | |
938 | ||
64916f1e DV |
939 | static void cleanup_card(struct net_device *dev) |
940 | { | |
941 | struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; | |
942 | if (idev) | |
943 | pnp_device_detach(idev); | |
944 | free_irq(dev->irq, dev); | |
945 | release_region(dev->base_addr, NE_IO_EXTENT); | |
946 | } | |
947 | ||
afc8eb46 | 948 | void __exit cleanup_module(void) |
1da177e4 LT |
949 | { |
950 | int this_dev; | |
951 | ||
a4d542b9 | 952 | ne_exit(); |
1da177e4 LT |
953 | for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { |
954 | struct net_device *dev = dev_ne[this_dev]; | |
955 | if (dev) { | |
956 | unregister_netdev(dev); | |
957 | cleanup_card(dev); | |
958 | free_netdev(dev); | |
959 | } | |
960 | } | |
961 | } | |
a4d542b9 AN |
962 | #else /* MODULE */ |
963 | module_init(ne_init); | |
964 | module_exit(ne_exit); | |
1da177e4 | 965 | #endif /* MODULE */ |