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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 | 55 | |
1da177e4 LT |
56 | #include <asm/io.h> |
57 | ||
58 | #include "8390.h" | |
59 | ||
60 | #define DRV_NAME "ne" | |
61 | ||
62 | /* Some defines that people can play with if so inclined. */ | |
63 | ||
64 | /* Do we support clones that don't adhere to 14,15 of the SAprom ? */ | |
65 | #define SUPPORT_NE_BAD_CLONES | |
fbb80230 DF |
66 | /* 0xbad = bad sig or no reset ack */ |
67 | #define BAD 0xbad | |
68 | ||
69 | #define MAX_NE_CARDS 4 /* Max number of NE cards per module */ | |
70 | static struct platform_device *pdev_ne[MAX_NE_CARDS]; | |
71 | static int io[MAX_NE_CARDS]; | |
72 | static int irq[MAX_NE_CARDS]; | |
73 | static int bad[MAX_NE_CARDS]; | |
c45f812f | 74 | static u32 ne_msg_enable; |
fbb80230 DF |
75 | |
76 | #ifdef MODULE | |
77 | module_param_array(io, int, NULL, 0); | |
78 | module_param_array(irq, int, NULL, 0); | |
79 | module_param_array(bad, int, NULL, 0); | |
c45f812f | 80 | module_param_named(msg_enable, ne_msg_enable, uint, (S_IRUSR|S_IRGRP|S_IROTH)); |
fbb80230 DF |
81 | MODULE_PARM_DESC(io, "I/O base address(es),required"); |
82 | MODULE_PARM_DESC(irq, "IRQ number(s)"); | |
83 | MODULE_PARM_DESC(bad, "Accept card(s) with bad signatures"); | |
c45f812f | 84 | MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)"); |
fbb80230 DF |
85 | MODULE_DESCRIPTION("NE1000/NE2000 ISA/PnP Ethernet driver"); |
86 | MODULE_LICENSE("GPL"); | |
87 | #endif /* MODULE */ | |
1da177e4 LT |
88 | |
89 | /* Do we perform extra sanity checks on stuff ? */ | |
90 | /* #define NE_SANITY_CHECK */ | |
91 | ||
92 | /* Do we implement the read before write bugfix ? */ | |
93 | /* #define NE_RW_BUGFIX */ | |
94 | ||
95 | /* Do we have a non std. amount of memory? (in units of 256 byte pages) */ | |
96 | /* #define PACKETBUF_MEMSIZE 0x40 */ | |
97 | ||
fbb80230 DF |
98 | /* This is set up so that no ISA autoprobe takes place. We can't guarantee |
99 | that the ne2k probe is the last 8390 based probe to take place (as it | |
100 | is at boot) and so the probe will get confused by any other 8390 cards. | |
101 | ISA device autoprobes on a running machine are not recommended anyway. */ | |
1c08bf10 AN |
102 | #if !defined(MODULE) && (defined(CONFIG_ISA) || defined(CONFIG_M32R)) |
103 | /* Do we need a portlist for the ISA auto-probe ? */ | |
104 | #define NEEDS_PORTLIST | |
105 | #endif | |
106 | ||
1da177e4 | 107 | /* A zero-terminated list of I/O addresses to be probed at boot. */ |
1c08bf10 | 108 | #ifdef NEEDS_PORTLIST |
1da177e4 LT |
109 | static unsigned int netcard_portlist[] __initdata = { |
110 | 0x300, 0x280, 0x320, 0x340, 0x360, 0x380, 0 | |
111 | }; | |
112 | #endif | |
113 | ||
114 | static struct isapnp_device_id isapnp_clone_list[] __initdata = { | |
115 | { ISAPNP_CARD_ID('A','X','E',0x2011), | |
116 | ISAPNP_VENDOR('A','X','E'), ISAPNP_FUNCTION(0x2011), | |
117 | (long) "NetGear EA201" }, | |
118 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
119 | ISAPNP_VENDOR('E','D','I'), ISAPNP_FUNCTION(0x0216), | |
120 | (long) "NN NE2000" }, | |
121 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, | |
122 | ISAPNP_VENDOR('P','N','P'), ISAPNP_FUNCTION(0x80d6), | |
123 | (long) "Generic PNP" }, | |
124 | { } /* terminate list */ | |
125 | }; | |
126 | ||
127 | MODULE_DEVICE_TABLE(isapnp, isapnp_clone_list); | |
128 | ||
129 | #ifdef SUPPORT_NE_BAD_CLONES | |
130 | /* A list of bad clones that we none-the-less recognize. */ | |
131 | static struct { const char *name8, *name16; unsigned char SAprefix[4];} | |
132 | bad_clone_list[] __initdata = { | |
133 | {"DE100", "DE200", {0x00, 0xDE, 0x01,}}, | |
134 | {"DE120", "DE220", {0x00, 0x80, 0xc8,}}, | |
135 | {"DFI1000", "DFI2000", {'D', 'F', 'I',}}, /* Original, eh? */ | |
136 | {"EtherNext UTP8", "EtherNext UTP16", {0x00, 0x00, 0x79}}, | |
137 | {"NE1000","NE2000-invalid", {0x00, 0x00, 0xd8}}, /* Ancient real NE1000. */ | |
138 | {"NN1000", "NN2000", {0x08, 0x03, 0x08}}, /* Outlaw no-name clone. */ | |
139 | {"4-DIM8","4-DIM16", {0x00,0x00,0x4d,}}, /* Outlaw 4-Dimension cards. */ | |
140 | {"Con-Intl_8", "Con-Intl_16", {0x00, 0x00, 0x24}}, /* Connect Int'nl */ | |
141 | {"ET-100","ET-200", {0x00, 0x45, 0x54}}, /* YANG and YA clone */ | |
142 | {"COMPEX","COMPEX16",{0x00,0x80,0x48}}, /* Broken ISA Compex cards */ | |
143 | {"E-LAN100", "E-LAN200", {0x00, 0x00, 0x5d}}, /* Broken ne1000 clones */ | |
144 | {"PCM-4823", "PCM-4823", {0x00, 0xc0, 0x6c}}, /* Broken Advantech MoBo */ | |
145 | {"REALTEK", "RTL8019", {0x00, 0x00, 0xe8}}, /* no-name with Realtek chip */ | |
c7e65c17 | 146 | #ifdef CONFIG_MACH_TX49XX |
c5e49fb5 | 147 | {"RBHMA4X00-RTL8019", "RBHMA4X00-RTL8019", {0x00, 0x60, 0x0a}}, /* Toshiba built-in */ |
9cc975e0 | 148 | #endif |
1da177e4 LT |
149 | {"LCS-8834", "LCS-8836", {0x04, 0x04, 0x37}}, /* ShinyNet (SET) */ |
150 | {NULL,} | |
151 | }; | |
152 | #endif | |
153 | ||
154 | /* ---- No user-serviceable parts below ---- */ | |
155 | ||
156 | #define NE_BASE (dev->base_addr) | |
157 | #define NE_CMD 0x00 | |
158 | #define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ | |
159 | #define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ | |
160 | #define NE_IO_EXTENT 0x20 | |
161 | ||
162 | #define NE1SM_START_PG 0x20 /* First page of TX buffer */ | |
163 | #define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ | |
164 | #define NESM_START_PG 0x40 /* First page of TX buffer */ | |
165 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ | |
166 | ||
44456d37 | 167 | #if defined(CONFIG_PLAT_MAPPI) |
1da177e4 | 168 | # define DCR_VAL 0x4b |
aedc0e52 | 169 | #elif defined(CONFIG_PLAT_OAKS32R) || \ |
c7e65c17 | 170 | defined(CONFIG_MACH_TX49XX) |
aedc0e52 | 171 | # define DCR_VAL 0x48 /* 8-bit mode */ |
65eca28d MS |
172 | #elif defined(CONFIG_ATARI) /* 8-bit mode on Atari, normal on Q40 */ |
173 | # define DCR_VAL (MACH_IS_ATARI ? 0x48 : 0x49) | |
1da177e4 LT |
174 | #else |
175 | # define DCR_VAL 0x49 | |
176 | #endif | |
177 | ||
f0e93c10 | 178 | static int ne_probe1(struct net_device *dev, unsigned long ioaddr); |
1da177e4 LT |
179 | static int ne_probe_isapnp(struct net_device *dev); |
180 | ||
1da177e4 LT |
181 | static void ne_reset_8390(struct net_device *dev); |
182 | static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | |
183 | int ring_page); | |
184 | static void ne_block_input(struct net_device *dev, int count, | |
185 | struct sk_buff *skb, int ring_offset); | |
186 | static void ne_block_output(struct net_device *dev, const int count, | |
187 | const unsigned char *buf, const int start_page); | |
188 | ||
6aa20a22 | 189 | |
1da177e4 LT |
190 | /* Probe for various non-shared-memory ethercards. |
191 | ||
192 | NEx000-clone boards have a Station Address PROM (SAPROM) in the packet | |
193 | buffer memory space. NE2000 clones have 0x57,0x57 in bytes 0x0e,0x0f of | |
194 | the SAPROM, while other supposed NE2000 clones must be detected by their | |
195 | SA prefix. | |
196 | ||
197 | Reading the SAPROM from a word-wide card with the 8390 set in byte-wide | |
198 | mode results in doubled values, which can be detected and compensated for. | |
199 | ||
200 | The probe is also responsible for initializing the card and filling | |
201 | in the 'dev' and 'ei_status' structures. | |
202 | ||
203 | We use the minimum memory size for some ethercard product lines, iff we can't | |
204 | distinguish models. You can increase the packet buffer size by setting | |
205 | PACKETBUF_MEMSIZE. Reported Cabletron packet buffer locations are: | |
206 | E1010 starts at 0x100 and ends at 0x2000. | |
207 | E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory") | |
208 | E2010 starts at 0x100 and ends at 0x4000. | |
209 | E2010-x starts at 0x100 and ends at 0xffff. */ | |
210 | ||
211 | static int __init do_ne_probe(struct net_device *dev) | |
212 | { | |
f0e93c10 | 213 | unsigned long base_addr = dev->base_addr; |
1c08bf10 | 214 | #ifdef NEEDS_PORTLIST |
1da177e4 LT |
215 | int orig_irq = dev->irq; |
216 | #endif | |
217 | ||
1da177e4 | 218 | /* First check any supplied i/o locations. User knows best. <cough> */ |
fbb80230 DF |
219 | if (base_addr > 0x1ff) { /* Check a single specified location. */ |
220 | int ret = ne_probe1(dev, base_addr); | |
221 | if (ret) | |
c45f812f MW |
222 | netdev_warn(dev, "ne.c: No NE*000 card found at " |
223 | "i/o = %#lx\n", base_addr); | |
fbb80230 DF |
224 | return ret; |
225 | } | |
1da177e4 LT |
226 | else if (base_addr != 0) /* Don't probe at all. */ |
227 | return -ENXIO; | |
228 | ||
229 | /* Then look for any installed ISAPnP clones */ | |
230 | if (isapnp_present() && (ne_probe_isapnp(dev) == 0)) | |
231 | return 0; | |
232 | ||
1c08bf10 | 233 | #ifdef NEEDS_PORTLIST |
1da177e4 LT |
234 | /* Last resort. The semi-risky ISA auto-probe. */ |
235 | for (base_addr = 0; netcard_portlist[base_addr] != 0; base_addr++) { | |
236 | int ioaddr = netcard_portlist[base_addr]; | |
237 | dev->irq = orig_irq; | |
238 | if (ne_probe1(dev, ioaddr) == 0) | |
239 | return 0; | |
240 | } | |
241 | #endif | |
242 | ||
243 | return -ENODEV; | |
244 | } | |
245 | ||
1da177e4 LT |
246 | static int __init ne_probe_isapnp(struct net_device *dev) |
247 | { | |
248 | int i; | |
249 | ||
250 | for (i = 0; isapnp_clone_list[i].vendor != 0; i++) { | |
251 | struct pnp_dev *idev = NULL; | |
252 | ||
253 | while ((idev = pnp_find_dev(NULL, | |
254 | isapnp_clone_list[i].vendor, | |
255 | isapnp_clone_list[i].function, | |
256 | idev))) { | |
257 | /* Avoid already found cards from previous calls */ | |
258 | if (pnp_device_attach(idev) < 0) | |
259 | continue; | |
260 | if (pnp_activate_dev(idev) < 0) { | |
261 | pnp_device_detach(idev); | |
262 | continue; | |
263 | } | |
264 | /* if no io and irq, search for next */ | |
265 | if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) { | |
266 | pnp_device_detach(idev); | |
267 | continue; | |
268 | } | |
269 | /* found it */ | |
270 | dev->base_addr = pnp_port_start(idev, 0); | |
271 | dev->irq = pnp_irq(idev, 0); | |
c45f812f MW |
272 | netdev_info(dev, |
273 | "ne.c: ISAPnP reports %s at i/o %#lx, irq %d.\n", | |
274 | (char *) isapnp_clone_list[i].driver_data, | |
275 | dev->base_addr, dev->irq); | |
1da177e4 | 276 | if (ne_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */ |
c45f812f MW |
277 | netdev_err(dev, |
278 | "ne.c: Probe of ISAPnP card at %#lx failed.\n", | |
279 | dev->base_addr); | |
1da177e4 LT |
280 | pnp_device_detach(idev); |
281 | return -ENXIO; | |
282 | } | |
283 | ei_status.priv = (unsigned long)idev; | |
284 | break; | |
285 | } | |
286 | if (!idev) | |
287 | continue; | |
288 | return 0; | |
289 | } | |
290 | ||
291 | return -ENODEV; | |
292 | } | |
293 | ||
f0e93c10 | 294 | static int __init ne_probe1(struct net_device *dev, unsigned long ioaddr) |
1da177e4 LT |
295 | { |
296 | int i; | |
297 | unsigned char SA_prom[32]; | |
298 | int wordlength = 2; | |
299 | const char *name = NULL; | |
300 | int start_page, stop_page; | |
301 | int neX000, ctron, copam, bad_card; | |
302 | int reg0, ret; | |
303 | static unsigned version_printed; | |
c45f812f | 304 | struct ei_device *ei_local = netdev_priv(dev); |
1da177e4 LT |
305 | |
306 | if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME)) | |
307 | return -EBUSY; | |
308 | ||
309 | reg0 = inb_p(ioaddr); | |
310 | if (reg0 == 0xFF) { | |
311 | ret = -ENODEV; | |
312 | goto err_out; | |
313 | } | |
314 | ||
315 | /* Do a preliminary verification that we have a 8390. */ | |
316 | { | |
317 | int regd; | |
318 | outb_p(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); | |
319 | regd = inb_p(ioaddr + 0x0d); | |
320 | outb_p(0xff, ioaddr + 0x0d); | |
321 | outb_p(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); | |
322 | inb_p(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ | |
323 | if (inb_p(ioaddr + EN0_COUNTER0) != 0) { | |
324 | outb_p(reg0, ioaddr); | |
325 | outb_p(regd, ioaddr + 0x0d); /* Restore the old values. */ | |
326 | ret = -ENODEV; | |
327 | goto err_out; | |
328 | } | |
329 | } | |
330 | ||
c45f812f MW |
331 | if ((ne_msg_enable & NETIF_MSG_DRV) && (version_printed++ == 0)) |
332 | netdev_info(dev, "%s%s", version1, version2); | |
1da177e4 | 333 | |
c45f812f | 334 | netdev_info(dev, "NE*000 ethercard probe at %#3lx:", ioaddr); |
1da177e4 LT |
335 | |
336 | /* A user with a poor card that fails to ack the reset, or that | |
337 | does not have a valid 0x57,0x57 signature can still use this | |
338 | without having to recompile. Specifying an i/o address along | |
339 | with an otherwise unused dev->mem_end value of "0xBAD" will | |
340 | cause the driver to skip these parts of the probe. */ | |
341 | ||
fbb80230 | 342 | bad_card = ((dev->base_addr != 0) && (dev->mem_end == BAD)); |
1da177e4 LT |
343 | |
344 | /* Reset card. Who knows what dain-bramaged state it was left in. */ | |
345 | ||
346 | { | |
347 | unsigned long reset_start_time = jiffies; | |
348 | ||
349 | /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ | |
350 | outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); | |
351 | ||
352 | while ((inb_p(ioaddr + EN0_ISR) & ENISR_RESET) == 0) | |
ff5688ae | 353 | if (time_after(jiffies, reset_start_time + 2*HZ/100)) { |
1da177e4 | 354 | if (bad_card) { |
c45f812f | 355 | pr_cont(" (warning: no reset ack)"); |
1da177e4 LT |
356 | break; |
357 | } else { | |
c45f812f | 358 | pr_cont(" not found (no reset ack).\n"); |
1da177e4 LT |
359 | ret = -ENODEV; |
360 | goto err_out; | |
361 | } | |
362 | } | |
363 | ||
364 | outb_p(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ | |
365 | } | |
366 | ||
367 | /* Read the 16 bytes of station address PROM. | |
f0084a36 | 368 | We must first initialize registers, similar to NS8390p_init(eifdev, 0). |
1da177e4 LT |
369 | We can't reliably read the SAPROM address without this. |
370 | (I learned the hard way!). */ | |
371 | { | |
372 | struct {unsigned char value, offset; } program_seq[] = | |
373 | { | |
374 | {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ | |
375 | {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */ | |
376 | {0x00, EN0_RCNTLO}, /* Clear the count regs. */ | |
377 | {0x00, EN0_RCNTHI}, | |
378 | {0x00, EN0_IMR}, /* Mask completion irq. */ | |
379 | {0xFF, EN0_ISR}, | |
380 | {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ | |
381 | {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ | |
382 | {32, EN0_RCNTLO}, | |
383 | {0x00, EN0_RCNTHI}, | |
384 | {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ | |
385 | {0x00, EN0_RSARHI}, | |
386 | {E8390_RREAD+E8390_START, E8390_CMD}, | |
387 | }; | |
388 | ||
ff8ac609 | 389 | for (i = 0; i < ARRAY_SIZE(program_seq); i++) |
1da177e4 LT |
390 | outb_p(program_seq[i].value, ioaddr + program_seq[i].offset); |
391 | ||
392 | } | |
393 | for(i = 0; i < 32 /*sizeof(SA_prom)*/; i+=2) { | |
394 | SA_prom[i] = inb(ioaddr + NE_DATAPORT); | |
395 | SA_prom[i+1] = inb(ioaddr + NE_DATAPORT); | |
396 | if (SA_prom[i] != SA_prom[i+1]) | |
397 | wordlength = 1; | |
398 | } | |
399 | ||
400 | if (wordlength == 2) | |
401 | { | |
402 | for (i = 0; i < 16; i++) | |
403 | SA_prom[i] = SA_prom[i+i]; | |
404 | /* We must set the 8390 for word mode. */ | |
405 | outb_p(DCR_VAL, ioaddr + EN0_DCFG); | |
406 | start_page = NESM_START_PG; | |
aedc0e52 SS |
407 | |
408 | /* | |
409 | * Realtek RTL8019AS datasheet says that the PSTOP register | |
410 | * shouldn't exceed 0x60 in 8-bit mode. | |
411 | * This chip can be identified by reading the signature from | |
412 | * the remote byte count registers (otherwise write-only)... | |
413 | */ | |
414 | if ((DCR_VAL & 0x01) == 0 && /* 8-bit mode */ | |
415 | inb(ioaddr + EN0_RCNTLO) == 0x50 && | |
416 | inb(ioaddr + EN0_RCNTHI) == 0x70) | |
417 | stop_page = 0x60; | |
418 | else | |
419 | stop_page = NESM_STOP_PG; | |
1da177e4 LT |
420 | } else { |
421 | start_page = NE1SM_START_PG; | |
aedc0e52 | 422 | stop_page = NE1SM_STOP_PG; |
1da177e4 LT |
423 | } |
424 | ||
425 | #if defined(CONFIG_PLAT_MAPPI) || defined(CONFIG_PLAT_OAKS32R) | |
426 | neX000 = ((SA_prom[14] == 0x57 && SA_prom[15] == 0x57) | |
427 | || (SA_prom[14] == 0x42 && SA_prom[15] == 0x42)); | |
428 | #else | |
429 | neX000 = (SA_prom[14] == 0x57 && SA_prom[15] == 0x57); | |
430 | #endif | |
431 | ctron = (SA_prom[0] == 0x00 && SA_prom[1] == 0x00 && SA_prom[2] == 0x1d); | |
432 | copam = (SA_prom[14] == 0x49 && SA_prom[15] == 0x00); | |
433 | ||
434 | /* Set up the rest of the parameters. */ | |
435 | if (neX000 || bad_card || copam) { | |
436 | name = (wordlength == 2) ? "NE2000" : "NE1000"; | |
437 | } | |
438 | else if (ctron) | |
439 | { | |
440 | name = (wordlength == 2) ? "Ctron-8" : "Ctron-16"; | |
441 | start_page = 0x01; | |
442 | stop_page = (wordlength == 2) ? 0x40 : 0x20; | |
443 | } | |
444 | else | |
445 | { | |
446 | #ifdef SUPPORT_NE_BAD_CLONES | |
447 | /* Ack! Well, there might be a *bad* NE*000 clone there. | |
448 | Check for total bogus addresses. */ | |
449 | for (i = 0; bad_clone_list[i].name8; i++) | |
450 | { | |
451 | if (SA_prom[0] == bad_clone_list[i].SAprefix[0] && | |
452 | SA_prom[1] == bad_clone_list[i].SAprefix[1] && | |
453 | SA_prom[2] == bad_clone_list[i].SAprefix[2]) | |
454 | { | |
455 | if (wordlength == 2) | |
456 | { | |
457 | name = bad_clone_list[i].name16; | |
458 | } else { | |
459 | name = bad_clone_list[i].name8; | |
460 | } | |
461 | break; | |
462 | } | |
463 | } | |
464 | if (bad_clone_list[i].name8 == NULL) | |
465 | { | |
c45f812f | 466 | pr_cont(" not found (invalid signature %2.2x %2.2x).\n", |
1da177e4 LT |
467 | SA_prom[14], SA_prom[15]); |
468 | ret = -ENXIO; | |
469 | goto err_out; | |
470 | } | |
471 | #else | |
c45f812f | 472 | pr_cont(" not found.\n"); |
1da177e4 LT |
473 | ret = -ENXIO; |
474 | goto err_out; | |
475 | #endif | |
476 | } | |
477 | ||
478 | if (dev->irq < 2) | |
479 | { | |
480 | unsigned long cookie = probe_irq_on(); | |
481 | outb_p(0x50, ioaddr + EN0_IMR); /* Enable one interrupt. */ | |
482 | outb_p(0x00, ioaddr + EN0_RCNTLO); | |
483 | outb_p(0x00, ioaddr + EN0_RCNTHI); | |
484 | outb_p(E8390_RREAD+E8390_START, ioaddr); /* Trigger it... */ | |
485 | mdelay(10); /* wait 10ms for interrupt to propagate */ | |
486 | outb_p(0x00, ioaddr + EN0_IMR); /* Mask it again. */ | |
487 | dev->irq = probe_irq_off(cookie); | |
c45f812f MW |
488 | if (netif_msg_probe(ei_local)) |
489 | pr_cont(" autoirq is %d", dev->irq); | |
1da177e4 LT |
490 | } else if (dev->irq == 2) |
491 | /* Fixup for users that don't know that IRQ 2 is really IRQ 9, | |
492 | or don't know which one to set. */ | |
493 | dev->irq = 9; | |
494 | ||
495 | if (! dev->irq) { | |
c45f812f | 496 | pr_cont(" failed to detect IRQ line.\n"); |
1da177e4 LT |
497 | ret = -EAGAIN; |
498 | goto err_out; | |
499 | } | |
500 | ||
501 | /* Snarf the interrupt now. There's no point in waiting since we cannot | |
502 | share and the board will usually be enabled. */ | |
055e5110 | 503 | ret = request_irq(dev->irq, eip_interrupt, 0, name, dev); |
1da177e4 | 504 | if (ret) { |
c45f812f | 505 | pr_cont(" unable to get IRQ %d (errno=%d).\n", dev->irq, ret); |
1da177e4 LT |
506 | goto err_out; |
507 | } | |
508 | ||
509 | dev->base_addr = ioaddr; | |
510 | ||
511 | #ifdef CONFIG_PLAT_MAPPI | |
512 | outb_p(E8390_NODMA + E8390_PAGE1 + E8390_STOP, | |
513 | ioaddr + E8390_CMD); /* 0x61 */ | |
104bf3fb | 514 | for (i = 0; i < ETH_ALEN; i++) { |
1da177e4 LT |
515 | dev->dev_addr[i] = SA_prom[i] |
516 | = inb_p(ioaddr + EN1_PHYS_SHIFT(i)); | |
1da177e4 LT |
517 | } |
518 | #else | |
104bf3fb | 519 | for (i = 0; i < ETH_ALEN; i++) { |
1da177e4 LT |
520 | dev->dev_addr[i] = SA_prom[i]; |
521 | } | |
522 | #endif | |
523 | ||
c45f812f | 524 | pr_cont("%pM\n", dev->dev_addr); |
1da177e4 LT |
525 | |
526 | ei_status.name = name; | |
527 | ei_status.tx_start_page = start_page; | |
528 | ei_status.stop_page = stop_page; | |
9cc975e0 | 529 | |
aedc0e52 SS |
530 | /* Use 16-bit mode only if this wasn't overridden by DCR_VAL */ |
531 | ei_status.word16 = (wordlength == 2 && (DCR_VAL & 0x01)); | |
1da177e4 LT |
532 | |
533 | ei_status.rx_start_page = start_page + TX_PAGES; | |
534 | #ifdef PACKETBUF_MEMSIZE | |
535 | /* Allow the packet buffer size to be overridden by know-it-alls. */ | |
536 | ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; | |
537 | #endif | |
538 | ||
539 | ei_status.reset_8390 = &ne_reset_8390; | |
540 | ei_status.block_input = &ne_block_input; | |
541 | ei_status.block_output = &ne_block_output; | |
542 | ei_status.get_8390_hdr = &ne_get_8390_hdr; | |
543 | ei_status.priv = 0; | |
4ef8e768 SH |
544 | |
545 | dev->netdev_ops = &eip_netdev_ops; | |
d02a4e31 | 546 | NS8390p_init(dev, 0); |
b1fc5505 | 547 | |
c45f812f | 548 | ei_local->msg_enable = ne_msg_enable; |
b1fc5505 | 549 | ret = register_netdev(dev); |
550 | if (ret) | |
551 | goto out_irq; | |
c45f812f MW |
552 | netdev_info(dev, "%s found at %#lx, using IRQ %d.\n", |
553 | name, ioaddr, dev->irq); | |
1da177e4 LT |
554 | return 0; |
555 | ||
b1fc5505 | 556 | out_irq: |
557 | free_irq(dev->irq, dev); | |
1da177e4 LT |
558 | err_out: |
559 | release_region(ioaddr, NE_IO_EXTENT); | |
560 | return ret; | |
561 | } | |
562 | ||
1da177e4 LT |
563 | /* Hard reset the card. This used to pause for the same period that a |
564 | 8390 reset command required, but that shouldn't be necessary. */ | |
565 | ||
566 | static void ne_reset_8390(struct net_device *dev) | |
567 | { | |
568 | unsigned long reset_start_time = jiffies; | |
c45f812f | 569 | struct ei_device *ei_local = netdev_priv(dev); |
1da177e4 | 570 | |
c45f812f | 571 | netif_dbg(ei_local, hw, dev, "resetting the 8390 t=%ld...\n", jiffies); |
1da177e4 LT |
572 | |
573 | /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ | |
574 | outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); | |
575 | ||
576 | ei_status.txing = 0; | |
577 | ei_status.dmaing = 0; | |
578 | ||
579 | /* This check _should_not_ be necessary, omit eventually. */ | |
580 | while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) | |
ff5688ae | 581 | if (time_after(jiffies, reset_start_time + 2*HZ/100)) { |
c45f812f | 582 | netdev_err(dev, "ne_reset_8390() did not complete.\n"); |
1da177e4 LT |
583 | break; |
584 | } | |
585 | outb_p(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ | |
586 | } | |
587 | ||
588 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
589 | we don't need to be concerned with ring wrap as the header will be at | |
590 | the start of a page, so we optimize accordingly. */ | |
591 | ||
592 | static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
593 | { | |
594 | int nic_base = dev->base_addr; | |
595 | ||
596 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
597 | ||
598 | if (ei_status.dmaing) | |
599 | { | |
c45f812f MW |
600 | netdev_err(dev, "DMAing conflict in ne_get_8390_hdr " |
601 | "[DMAstat:%d][irqlock:%d].\n", | |
602 | ei_status.dmaing, ei_status.irqlock); | |
1da177e4 LT |
603 | return; |
604 | } | |
605 | ||
606 | ei_status.dmaing |= 0x01; | |
607 | outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
608 | outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); | |
609 | outb_p(0, nic_base + EN0_RCNTHI); | |
610 | outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */ | |
611 | outb_p(ring_page, nic_base + EN0_RSARHI); | |
612 | outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
613 | ||
614 | if (ei_status.word16) | |
615 | insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); | |
616 | else | |
617 | insb(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)); | |
618 | ||
619 | outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
620 | ei_status.dmaing &= ~0x01; | |
621 | ||
622 | le16_to_cpus(&hdr->count); | |
623 | } | |
624 | ||
625 | /* Block input and output, similar to the Crynwr packet driver. If you | |
626 | are porting to a new ethercard, look at the packet driver source for hints. | |
627 | The NEx000 doesn't share the on-board packet memory -- you have to put | |
628 | the packet out through the "remote DMA" dataport using outb. */ | |
629 | ||
630 | static void ne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | |
631 | { | |
632 | #ifdef NE_SANITY_CHECK | |
633 | int xfer_count = count; | |
c45f812f | 634 | struct ei_device *ei_local = netdev_priv(dev); |
1da177e4 LT |
635 | #endif |
636 | int nic_base = dev->base_addr; | |
637 | char *buf = skb->data; | |
638 | ||
639 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
640 | if (ei_status.dmaing) | |
641 | { | |
c45f812f MW |
642 | netdev_err(dev, "DMAing conflict in ne_block_input " |
643 | "[DMAstat:%d][irqlock:%d].\n", | |
644 | ei_status.dmaing, ei_status.irqlock); | |
1da177e4 LT |
645 | return; |
646 | } | |
647 | ei_status.dmaing |= 0x01; | |
648 | outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
649 | outb_p(count & 0xff, nic_base + EN0_RCNTLO); | |
650 | outb_p(count >> 8, nic_base + EN0_RCNTHI); | |
651 | outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO); | |
652 | outb_p(ring_offset >> 8, nic_base + EN0_RSARHI); | |
653 | outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
654 | if (ei_status.word16) | |
655 | { | |
656 | insw(NE_BASE + NE_DATAPORT,buf,count>>1); | |
657 | if (count & 0x01) | |
658 | { | |
659 | buf[count-1] = inb(NE_BASE + NE_DATAPORT); | |
660 | #ifdef NE_SANITY_CHECK | |
661 | xfer_count++; | |
662 | #endif | |
663 | } | |
664 | } else { | |
665 | insb(NE_BASE + NE_DATAPORT, buf, count); | |
666 | } | |
667 | ||
668 | #ifdef NE_SANITY_CHECK | |
669 | /* This was for the ALPHA version only, but enough people have | |
670 | been encountering problems so it is still here. If you see | |
671 | this message you either 1) have a slightly incompatible clone | |
672 | or 2) have noise/speed problems with your bus. */ | |
673 | ||
c45f812f | 674 | if (netif_msg_rx_status(ei_local)) |
1da177e4 LT |
675 | { |
676 | /* DMA termination address check... */ | |
677 | int addr, tries = 20; | |
678 | do { | |
679 | /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here | |
680 | -- it's broken for Rx on some cards! */ | |
681 | int high = inb_p(nic_base + EN0_RSARHI); | |
682 | int low = inb_p(nic_base + EN0_RSARLO); | |
683 | addr = (high << 8) + low; | |
684 | if (((ring_offset + xfer_count) & 0xff) == low) | |
685 | break; | |
686 | } while (--tries > 0); | |
687 | if (tries <= 0) | |
c45f812f MW |
688 | netdev_warn(dev, "RX transfer address mismatch," |
689 | "%#4.4x (expected) vs. %#4.4x (actual).\n", | |
690 | ring_offset + xfer_count, addr); | |
1da177e4 LT |
691 | } |
692 | #endif | |
693 | outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
694 | ei_status.dmaing &= ~0x01; | |
695 | } | |
696 | ||
697 | static void ne_block_output(struct net_device *dev, int count, | |
698 | const unsigned char *buf, const int start_page) | |
699 | { | |
700 | int nic_base = NE_BASE; | |
701 | unsigned long dma_start; | |
702 | #ifdef NE_SANITY_CHECK | |
703 | int retries = 0; | |
c45f812f | 704 | struct ei_device *ei_local = netdev_priv(dev); |
1da177e4 LT |
705 | #endif |
706 | ||
707 | /* Round the count up for word writes. Do we need to do this? | |
708 | What effect will an odd byte count have on the 8390? | |
709 | I should check someday. */ | |
710 | ||
711 | if (ei_status.word16 && (count & 0x01)) | |
712 | count++; | |
713 | ||
714 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
715 | if (ei_status.dmaing) | |
716 | { | |
c45f812f MW |
717 | netdev_err(dev, "DMAing conflict in ne_block_output." |
718 | "[DMAstat:%d][irqlock:%d]\n", | |
719 | ei_status.dmaing, ei_status.irqlock); | |
1da177e4 LT |
720 | return; |
721 | } | |
722 | ei_status.dmaing |= 0x01; | |
723 | /* We should already be in page 0, but to be safe... */ | |
724 | outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); | |
725 | ||
726 | #ifdef NE_SANITY_CHECK | |
727 | retry: | |
728 | #endif | |
729 | ||
730 | #ifdef NE8390_RW_BUGFIX | |
731 | /* Handle the read-before-write bug the same way as the | |
732 | Crynwr packet driver -- the NatSemi method doesn't work. | |
733 | Actually this doesn't always work either, but if you have | |
734 | problems with your NEx000 this is better than nothing! */ | |
735 | ||
736 | outb_p(0x42, nic_base + EN0_RCNTLO); | |
737 | outb_p(0x00, nic_base + EN0_RCNTHI); | |
738 | outb_p(0x42, nic_base + EN0_RSARLO); | |
739 | outb_p(0x00, nic_base + EN0_RSARHI); | |
740 | outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
741 | /* Make certain that the dummy read has occurred. */ | |
742 | udelay(6); | |
743 | #endif | |
744 | ||
745 | outb_p(ENISR_RDC, nic_base + EN0_ISR); | |
746 | ||
747 | /* Now the normal output. */ | |
748 | outb_p(count & 0xff, nic_base + EN0_RCNTLO); | |
749 | outb_p(count >> 8, nic_base + EN0_RCNTHI); | |
750 | outb_p(0x00, nic_base + EN0_RSARLO); | |
751 | outb_p(start_page, nic_base + EN0_RSARHI); | |
752 | ||
753 | outb_p(E8390_RWRITE+E8390_START, nic_base + NE_CMD); | |
754 | if (ei_status.word16) { | |
755 | outsw(NE_BASE + NE_DATAPORT, buf, count>>1); | |
756 | } else { | |
757 | outsb(NE_BASE + NE_DATAPORT, buf, count); | |
758 | } | |
759 | ||
760 | dma_start = jiffies; | |
761 | ||
762 | #ifdef NE_SANITY_CHECK | |
763 | /* This was for the ALPHA version only, but enough people have | |
764 | been encountering problems so it is still here. */ | |
765 | ||
c45f812f | 766 | if (netif_msg_tx_queued(ei_local)) |
1da177e4 LT |
767 | { |
768 | /* DMA termination address check... */ | |
769 | int addr, tries = 20; | |
770 | do { | |
771 | int high = inb_p(nic_base + EN0_RSARHI); | |
772 | int low = inb_p(nic_base + EN0_RSARLO); | |
773 | addr = (high << 8) + low; | |
774 | if ((start_page << 8) + count == addr) | |
775 | break; | |
776 | } while (--tries > 0); | |
777 | ||
778 | if (tries <= 0) | |
779 | { | |
c45f812f MW |
780 | netdev_warn(dev, "Tx packet transfer address mismatch," |
781 | "%#4.4x (expected) vs. %#4.4x (actual).\n", | |
782 | (start_page << 8) + count, addr); | |
1da177e4 LT |
783 | if (retries++ == 0) |
784 | goto retry; | |
785 | } | |
786 | } | |
787 | #endif | |
788 | ||
789 | while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0) | |
ff5688ae | 790 | if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */ |
c45f812f | 791 | netdev_warn(dev, "timeout waiting for Tx RDC.\n"); |
1da177e4 | 792 | ne_reset_8390(dev); |
d02a4e31 | 793 | NS8390p_init(dev, 1); |
1da177e4 LT |
794 | break; |
795 | } | |
796 | ||
797 | outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
798 | ei_status.dmaing &= ~0x01; | |
1da177e4 LT |
799 | } |
800 | ||
a4d542b9 AN |
801 | static int __init ne_drv_probe(struct platform_device *pdev) |
802 | { | |
803 | struct net_device *dev; | |
fbb80230 | 804 | int err, this_dev = pdev->id; |
a4d542b9 | 805 | struct resource *res; |
a4d542b9 | 806 | |
055e5110 | 807 | dev = alloc_eip_netdev(); |
a4d542b9 AN |
808 | if (!dev) |
809 | return -ENOMEM; | |
fbb80230 DF |
810 | |
811 | /* ne.c doesn't populate resources in platform_device, but | |
812 | * rbtx4927_ne_init and rbtx4938_ne_init do register devices | |
813 | * with resources. | |
814 | */ | |
815 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
816 | if (res) { | |
817 | dev->base_addr = res->start; | |
818 | dev->irq = platform_get_irq(pdev, 0); | |
819 | } else { | |
3390712a KV |
820 | if (this_dev < 0 || this_dev >= MAX_NE_CARDS) { |
821 | free_netdev(dev); | |
fbb80230 | 822 | return -EINVAL; |
3390712a | 823 | } |
fbb80230 DF |
824 | dev->base_addr = io[this_dev]; |
825 | dev->irq = irq[this_dev]; | |
826 | dev->mem_end = bad[this_dev]; | |
827 | } | |
da9da01d | 828 | SET_NETDEV_DEV(dev, &pdev->dev); |
a4d542b9 AN |
829 | err = do_ne_probe(dev); |
830 | if (err) { | |
831 | free_netdev(dev); | |
832 | return err; | |
833 | } | |
834 | platform_set_drvdata(pdev, dev); | |
fbb80230 DF |
835 | |
836 | /* Update with any values found by probing, don't update if | |
837 | * resources were specified. | |
838 | */ | |
839 | if (!res) { | |
840 | io[this_dev] = dev->base_addr; | |
841 | irq[this_dev] = dev->irq; | |
842 | } | |
a4d542b9 AN |
843 | return 0; |
844 | } | |
845 | ||
fbb80230 | 846 | static int ne_drv_remove(struct platform_device *pdev) |
a4d542b9 AN |
847 | { |
848 | struct net_device *dev = platform_get_drvdata(pdev); | |
849 | ||
fbb80230 DF |
850 | if (dev) { |
851 | struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; | |
852 | netif_device_detach(dev); | |
853 | unregister_netdev(dev); | |
854 | if (idev) | |
855 | pnp_device_detach(idev); | |
856 | /* Careful ne_drv_remove can be called twice, once from | |
857 | * the platform_driver.remove and again when the | |
858 | * platform_device is being removed. | |
859 | */ | |
860 | ei_status.priv = 0; | |
861 | free_irq(dev->irq, dev); | |
862 | release_region(dev->base_addr, NE_IO_EXTENT); | |
863 | free_netdev(dev); | |
fbb80230 | 864 | } |
a4d542b9 AN |
865 | return 0; |
866 | } | |
867 | ||
fbb80230 DF |
868 | /* Remove unused devices or all if true. */ |
869 | static void ne_loop_rm_unreg(int all) | |
870 | { | |
871 | int this_dev; | |
872 | struct platform_device *pdev; | |
873 | for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { | |
874 | pdev = pdev_ne[this_dev]; | |
875 | /* No network device == unused */ | |
876 | if (pdev && (!platform_get_drvdata(pdev) || all)) { | |
877 | ne_drv_remove(pdev); | |
878 | platform_device_unregister(pdev); | |
879 | pdev_ne[this_dev] = NULL; | |
880 | } | |
881 | } | |
882 | } | |
883 | ||
a4d542b9 AN |
884 | #ifdef CONFIG_PM |
885 | static int ne_drv_suspend(struct platform_device *pdev, pm_message_t state) | |
886 | { | |
887 | struct net_device *dev = platform_get_drvdata(pdev); | |
888 | ||
539b06fc DF |
889 | if (netif_running(dev)) { |
890 | struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; | |
a4d542b9 | 891 | netif_device_detach(dev); |
539b06fc DF |
892 | if (idev) |
893 | pnp_stop_dev(idev); | |
894 | } | |
a4d542b9 AN |
895 | return 0; |
896 | } | |
897 | ||
898 | static int ne_drv_resume(struct platform_device *pdev) | |
899 | { | |
900 | struct net_device *dev = platform_get_drvdata(pdev); | |
901 | ||
902 | if (netif_running(dev)) { | |
539b06fc DF |
903 | struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; |
904 | if (idev) | |
905 | pnp_start_dev(idev); | |
a4d542b9 | 906 | ne_reset_8390(dev); |
d02a4e31 | 907 | NS8390p_init(dev, 1); |
a4d542b9 AN |
908 | netif_device_attach(dev); |
909 | } | |
910 | return 0; | |
911 | } | |
912 | #else | |
913 | #define ne_drv_suspend NULL | |
914 | #define ne_drv_resume NULL | |
915 | #endif | |
916 | ||
917 | static struct platform_driver ne_driver = { | |
fbb80230 | 918 | .remove = ne_drv_remove, |
a4d542b9 AN |
919 | .suspend = ne_drv_suspend, |
920 | .resume = ne_drv_resume, | |
921 | .driver = { | |
922 | .name = DRV_NAME, | |
a4d542b9 AN |
923 | }, |
924 | }; | |
925 | ||
fbb80230 | 926 | static void __init ne_add_devices(void) |
a4d542b9 | 927 | { |
fbb80230 DF |
928 | int this_dev; |
929 | struct platform_device *pdev; | |
a4d542b9 | 930 | |
fbb80230 DF |
931 | for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { |
932 | if (pdev_ne[this_dev]) | |
933 | continue; | |
934 | pdev = platform_device_register_simple( | |
935 | DRV_NAME, this_dev, NULL, 0); | |
936 | if (IS_ERR(pdev)) | |
937 | continue; | |
938 | pdev_ne[this_dev] = pdev; | |
939 | } | |
a4d542b9 | 940 | } |
6aa20a22 | 941 | |
1da177e4 | 942 | #ifdef MODULE |
2705d4f8 | 943 | int __init init_module(void) |
1da177e4 | 944 | { |
fbb80230 DF |
945 | int retval; |
946 | ne_add_devices(); | |
947 | retval = platform_driver_probe(&ne_driver, ne_drv_probe); | |
948 | if (retval) { | |
949 | if (io[0] == 0) | |
c45f812f MW |
950 | pr_notice("ne.c: You must supply \"io=0xNNN\"" |
951 | " value(s) for ISA cards.\n"); | |
fbb80230 DF |
952 | ne_loop_rm_unreg(1); |
953 | return retval; | |
1da177e4 | 954 | } |
1da177e4 | 955 | |
fbb80230 DF |
956 | /* Unregister unused platform_devices. */ |
957 | ne_loop_rm_unreg(0); | |
958 | return retval; | |
959 | } | |
960 | #else /* MODULE */ | |
961 | static int __init ne_init(void) | |
64916f1e | 962 | { |
fbb80230 DF |
963 | int retval = platform_driver_probe(&ne_driver, ne_drv_probe); |
964 | ||
965 | /* Unregister unused platform_devices. */ | |
966 | ne_loop_rm_unreg(0); | |
967 | return retval; | |
64916f1e | 968 | } |
fbb80230 | 969 | module_init(ne_init); |
64916f1e | 970 | |
fbb80230 | 971 | struct net_device * __init ne_probe(int unit) |
1da177e4 LT |
972 | { |
973 | int this_dev; | |
fbb80230 DF |
974 | struct net_device *dev; |
975 | ||
976 | /* Find an empty slot, that is no net_device and zero io port. */ | |
977 | this_dev = 0; | |
978 | while ((pdev_ne[this_dev] && platform_get_drvdata(pdev_ne[this_dev])) || | |
979 | io[this_dev]) { | |
980 | if (++this_dev == MAX_NE_CARDS) | |
981 | return ERR_PTR(-ENOMEM); | |
982 | } | |
983 | ||
984 | /* Get irq, io from kernel command line */ | |
985 | dev = alloc_eip_netdev(); | |
986 | if (!dev) | |
987 | return ERR_PTR(-ENOMEM); | |
1da177e4 | 988 | |
fbb80230 DF |
989 | sprintf(dev->name, "eth%d", unit); |
990 | netdev_boot_setup_check(dev); | |
991 | ||
992 | io[this_dev] = dev->base_addr; | |
993 | irq[this_dev] = dev->irq; | |
994 | bad[this_dev] = dev->mem_end; | |
995 | ||
996 | free_netdev(dev); | |
997 | ||
998 | ne_add_devices(); | |
999 | ||
1000 | /* return the first device found */ | |
1da177e4 | 1001 | for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { |
fbb80230 DF |
1002 | if (pdev_ne[this_dev]) { |
1003 | dev = platform_get_drvdata(pdev_ne[this_dev]); | |
1004 | if (dev) | |
1005 | return dev; | |
1da177e4 LT |
1006 | } |
1007 | } | |
fbb80230 DF |
1008 | |
1009 | return ERR_PTR(-ENODEV); | |
1da177e4 LT |
1010 | } |
1011 | #endif /* MODULE */ | |
fbb80230 DF |
1012 | |
1013 | static void __exit ne_exit(void) | |
1014 | { | |
1015 | platform_driver_unregister(&ne_driver); | |
1016 | ne_loop_rm_unreg(1); | |
1017 | } | |
1018 | module_exit(ne_exit); |