diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-04-02 09:20:12 -0400 |
---|---|---|
committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-10 22:54:25 -0400 |
commit | 644570b830266ff33ff5f3542b9c838f93a55ea6 (patch) | |
tree | b19c680ce1b1e4cd15465c74aa335459068c033f /drivers/net/ethernet/8390/e2100.c | |
parent | b955f6ca776f3bab3d1e2c5fb1d247b203cbda14 (diff) |
8390: Move the 8390 related drivers
Moves the drivers for the National Semi-conductor 8390 chipset into
drivers/net/ethernet/8390/ and the necessary Kconfig and Makefile
changes.
CC: Donald Becker <becker@scyld.com>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Alain Malek <alain.malek@cryogen.com>
CC: Peter De Schrijver <p2@mind.be>
CC: "David Huggins-Daines" <dhd@debian.org>
CC: Wim Dumon <wimpie@kotnet.org>
CC: Yoshinori Sato <ysato@users.sourceforge.jp>
CC: David Hinds <dahinds@users.sourceforge.net>
CC: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/8390/e2100.c')
-rw-r--r-- | drivers/net/ethernet/8390/e2100.c | 490 |
1 files changed, 490 insertions, 0 deletions
diff --git a/drivers/net/ethernet/8390/e2100.c b/drivers/net/ethernet/8390/e2100.c new file mode 100644 index 000000000000..d50a9998ae77 --- /dev/null +++ b/drivers/net/ethernet/8390/e2100.c | |||
@@ -0,0 +1,490 @@ | |||
1 | /* e2100.c: A Cabletron E2100 series ethernet driver for linux. */ | ||
2 | /* | ||
3 | Written 1993-1994 by Donald Becker. | ||
4 | |||
5 | Copyright 1994 by Donald Becker. | ||
6 | Copyright 1993 United States Government as represented by the | ||
7 | Director, National Security Agency. This software may be used and | ||
8 | distributed according to the terms of the GNU General Public License, | ||
9 | incorporated herein by reference. | ||
10 | |||
11 | This is a driver for the Cabletron E2100 series ethercards. | ||
12 | |||
13 | The Author may be reached as becker@scyld.com, or C/O | ||
14 | Scyld Computing Corporation | ||
15 | 410 Severn Ave., Suite 210 | ||
16 | Annapolis MD 21403 | ||
17 | |||
18 | The E2100 series ethercard is a fairly generic shared memory 8390 | ||
19 | implementation. The only unusual aspect is the way the shared memory | ||
20 | registers are set: first you do an inb() in what is normally the | ||
21 | station address region, and the low three bits of next outb() *address* | ||
22 | is used as the write value for that register. Either someone wasn't | ||
23 | too used to dem bit en bites, or they were trying to obfuscate the | ||
24 | programming interface. | ||
25 | |||
26 | There is an additional complication when setting the window on the packet | ||
27 | buffer. You must first do a read into the packet buffer region with the | ||
28 | low 8 address bits the address setting the page for the start of the packet | ||
29 | buffer window, and then do the above operation. See mem_on() for details. | ||
30 | |||
31 | One bug on the chip is that even a hard reset won't disable the memory | ||
32 | window, usually resulting in a hung machine if mem_off() isn't called. | ||
33 | If this happens, you must power down the machine for about 30 seconds. | ||
34 | */ | ||
35 | |||
36 | static const char version[] = | ||
37 | "e2100.c:v1.01 7/21/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; | ||
38 | |||
39 | #include <linux/module.h> | ||
40 | #include <linux/kernel.h> | ||
41 | #include <linux/errno.h> | ||
42 | #include <linux/string.h> | ||
43 | #include <linux/ioport.h> | ||
44 | #include <linux/netdevice.h> | ||
45 | #include <linux/etherdevice.h> | ||
46 | #include <linux/init.h> | ||
47 | #include <linux/interrupt.h> | ||
48 | #include <linux/delay.h> | ||
49 | |||
50 | #include <asm/io.h> | ||
51 | #include <asm/system.h> | ||
52 | |||
53 | #include "8390.h" | ||
54 | |||
55 | #define DRV_NAME "e2100" | ||
56 | |||
57 | static int e21_probe_list[] = {0x300, 0x280, 0x380, 0x220, 0}; | ||
58 | |||
59 | /* Offsets from the base_addr. | ||
60 | Read from the ASIC register, and the low three bits of the next outb() | ||
61 | address is used to set the corresponding register. */ | ||
62 | #define E21_NIC_OFFSET 0 /* Offset to the 8390 NIC. */ | ||
63 | #define E21_ASIC 0x10 | ||
64 | #define E21_MEM_ENABLE 0x10 | ||
65 | #define E21_MEM_ON 0x05 /* Enable memory in 16 bit mode. */ | ||
66 | #define E21_MEM_ON_8 0x07 /* Enable memory in 8 bit mode. */ | ||
67 | #define E21_MEM_BASE 0x11 | ||
68 | #define E21_IRQ_LOW 0x12 /* The low three bits of the IRQ number. */ | ||
69 | #define E21_IRQ_HIGH 0x14 /* The high IRQ bit and media select ... */ | ||
70 | #define E21_MEDIA 0x14 /* (alias). */ | ||
71 | #define E21_ALT_IFPORT 0x02 /* Set to use the other (BNC,AUI) port. */ | ||
72 | #define E21_BIG_MEM 0x04 /* Use a bigger (64K) buffer (we don't) */ | ||
73 | #define E21_SAPROM 0x10 /* Offset to station address data. */ | ||
74 | #define E21_IO_EXTENT 0x20 | ||
75 | |||
76 | static inline void mem_on(short port, volatile char __iomem *mem_base, | ||
77 | unsigned char start_page ) | ||
78 | { | ||
79 | /* This is a little weird: set the shared memory window by doing a | ||
80 | read. The low address bits specify the starting page. */ | ||
81 | readb(mem_base+start_page); | ||
82 | inb(port + E21_MEM_ENABLE); | ||
83 | outb(E21_MEM_ON, port + E21_MEM_ENABLE + E21_MEM_ON); | ||
84 | } | ||
85 | |||
86 | static inline void mem_off(short port) | ||
87 | { | ||
88 | inb(port + E21_MEM_ENABLE); | ||
89 | outb(0x00, port + E21_MEM_ENABLE); | ||
90 | } | ||
91 | |||
92 | /* In other drivers I put the TX pages first, but the E2100 window circuitry | ||
93 | is designed to have a 4K Tx region last. The windowing circuitry wraps the | ||
94 | window at 0x2fff->0x0000 so that the packets at e.g. 0x2f00 in the RX ring | ||
95 | appear contiguously in the window. */ | ||
96 | #define E21_RX_START_PG 0x00 /* First page of RX buffer */ | ||
97 | #define E21_RX_STOP_PG 0x30 /* Last page +1 of RX ring */ | ||
98 | #define E21_BIG_RX_STOP_PG 0xF0 /* Last page +1 of RX ring */ | ||
99 | #define E21_TX_START_PG E21_RX_STOP_PG /* First page of TX buffer */ | ||
100 | |||
101 | static int e21_probe1(struct net_device *dev, int ioaddr); | ||
102 | |||
103 | static int e21_open(struct net_device *dev); | ||
104 | static void e21_reset_8390(struct net_device *dev); | ||
105 | static void e21_block_input(struct net_device *dev, int count, | ||
106 | struct sk_buff *skb, int ring_offset); | ||
107 | static void e21_block_output(struct net_device *dev, int count, | ||
108 | const unsigned char *buf, int start_page); | ||
109 | static void e21_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | ||
110 | int ring_page); | ||
111 | static int e21_open(struct net_device *dev); | ||
112 | static int e21_close(struct net_device *dev); | ||
113 | |||
114 | |||
115 | /* Probe for the E2100 series ethercards. These cards have an 8390 at the | ||
116 | base address and the station address at both offset 0x10 and 0x18. I read | ||
117 | the station address from offset 0x18 to avoid the dataport of NE2000 | ||
118 | ethercards, and look for Ctron's unique ID (first three octets of the | ||
119 | station address). | ||
120 | */ | ||
121 | |||
122 | static int __init do_e2100_probe(struct net_device *dev) | ||
123 | { | ||
124 | int *port; | ||
125 | int base_addr = dev->base_addr; | ||
126 | int irq = dev->irq; | ||
127 | |||
128 | if (base_addr > 0x1ff) /* Check a single specified location. */ | ||
129 | return e21_probe1(dev, base_addr); | ||
130 | else if (base_addr != 0) /* Don't probe at all. */ | ||
131 | return -ENXIO; | ||
132 | |||
133 | for (port = e21_probe_list; *port; port++) { | ||
134 | dev->irq = irq; | ||
135 | if (e21_probe1(dev, *port) == 0) | ||
136 | return 0; | ||
137 | } | ||
138 | |||
139 | return -ENODEV; | ||
140 | } | ||
141 | |||
142 | #ifndef MODULE | ||
143 | struct net_device * __init e2100_probe(int unit) | ||
144 | { | ||
145 | struct net_device *dev = alloc_ei_netdev(); | ||
146 | int err; | ||
147 | |||
148 | if (!dev) | ||
149 | return ERR_PTR(-ENOMEM); | ||
150 | |||
151 | sprintf(dev->name, "eth%d", unit); | ||
152 | netdev_boot_setup_check(dev); | ||
153 | |||
154 | err = do_e2100_probe(dev); | ||
155 | if (err) | ||
156 | goto out; | ||
157 | return dev; | ||
158 | out: | ||
159 | free_netdev(dev); | ||
160 | return ERR_PTR(err); | ||
161 | } | ||
162 | #endif | ||
163 | |||
164 | static const struct net_device_ops e21_netdev_ops = { | ||
165 | .ndo_open = e21_open, | ||
166 | .ndo_stop = e21_close, | ||
167 | |||
168 | .ndo_start_xmit = ei_start_xmit, | ||
169 | .ndo_tx_timeout = ei_tx_timeout, | ||
170 | .ndo_get_stats = ei_get_stats, | ||
171 | .ndo_set_multicast_list = ei_set_multicast_list, | ||
172 | .ndo_validate_addr = eth_validate_addr, | ||
173 | .ndo_set_mac_address = eth_mac_addr, | ||
174 | .ndo_change_mtu = eth_change_mtu, | ||
175 | #ifdef CONFIG_NET_POLL_CONTROLLER | ||
176 | .ndo_poll_controller = ei_poll, | ||
177 | #endif | ||
178 | }; | ||
179 | |||
180 | static int __init e21_probe1(struct net_device *dev, int ioaddr) | ||
181 | { | ||
182 | int i, status, retval; | ||
183 | unsigned char *station_addr = dev->dev_addr; | ||
184 | static unsigned version_printed; | ||
185 | |||
186 | if (!request_region(ioaddr, E21_IO_EXTENT, DRV_NAME)) | ||
187 | return -EBUSY; | ||
188 | |||
189 | /* First check the station address for the Ctron prefix. */ | ||
190 | if (inb(ioaddr + E21_SAPROM + 0) != 0x00 || | ||
191 | inb(ioaddr + E21_SAPROM + 1) != 0x00 || | ||
192 | inb(ioaddr + E21_SAPROM + 2) != 0x1d) { | ||
193 | retval = -ENODEV; | ||
194 | goto out; | ||
195 | } | ||
196 | |||
197 | /* Verify by making certain that there is a 8390 at there. */ | ||
198 | outb(E8390_NODMA + E8390_STOP, ioaddr); | ||
199 | udelay(1); /* we want to delay one I/O cycle - which is 2MHz */ | ||
200 | status = inb(ioaddr); | ||
201 | if (status != 0x21 && status != 0x23) { | ||
202 | retval = -ENODEV; | ||
203 | goto out; | ||
204 | } | ||
205 | |||
206 | /* Read the station address PROM. */ | ||
207 | for (i = 0; i < 6; i++) | ||
208 | station_addr[i] = inb(ioaddr + E21_SAPROM + i); | ||
209 | |||
210 | inb(ioaddr + E21_MEDIA); /* Point to media selection. */ | ||
211 | outb(0, ioaddr + E21_ASIC); /* and disable the secondary interface. */ | ||
212 | |||
213 | if (ei_debug && version_printed++ == 0) | ||
214 | printk(version); | ||
215 | |||
216 | for (i = 0; i < 6; i++) | ||
217 | printk(" %02X", station_addr[i]); | ||
218 | |||
219 | if (dev->irq < 2) { | ||
220 | static const int irqlist[] = {15, 11, 10, 12, 5, 9, 3, 4}; | ||
221 | for (i = 0; i < ARRAY_SIZE(irqlist); i++) | ||
222 | if (request_irq (irqlist[i], NULL, 0, "bogus", NULL) != -EBUSY) { | ||
223 | dev->irq = irqlist[i]; | ||
224 | break; | ||
225 | } | ||
226 | if (i >= ARRAY_SIZE(irqlist)) { | ||
227 | printk(" unable to get IRQ %d.\n", dev->irq); | ||
228 | retval = -EAGAIN; | ||
229 | goto out; | ||
230 | } | ||
231 | } else if (dev->irq == 2) /* Fixup luser bogosity: IRQ2 is really IRQ9 */ | ||
232 | dev->irq = 9; | ||
233 | |||
234 | /* The 8390 is at the base address. */ | ||
235 | dev->base_addr = ioaddr; | ||
236 | |||
237 | ei_status.name = "E2100"; | ||
238 | ei_status.word16 = 1; | ||
239 | ei_status.tx_start_page = E21_TX_START_PG; | ||
240 | ei_status.rx_start_page = E21_RX_START_PG; | ||
241 | ei_status.stop_page = E21_RX_STOP_PG; | ||
242 | ei_status.saved_irq = dev->irq; | ||
243 | |||
244 | /* Check the media port used. The port can be passed in on the | ||
245 | low mem_end bits. */ | ||
246 | if (dev->mem_end & 15) | ||
247 | dev->if_port = dev->mem_end & 7; | ||
248 | else { | ||
249 | dev->if_port = 0; | ||
250 | inb(ioaddr + E21_MEDIA); /* Turn automatic media detection on. */ | ||
251 | for(i = 0; i < 6; i++) | ||
252 | if (station_addr[i] != inb(ioaddr + E21_SAPROM + 8 + i)) { | ||
253 | dev->if_port = 1; | ||
254 | break; | ||
255 | } | ||
256 | } | ||
257 | |||
258 | /* Never map in the E21 shared memory unless you are actively using it. | ||
259 | Also, the shared memory has effective only one setting -- spread all | ||
260 | over the 128K region! */ | ||
261 | if (dev->mem_start == 0) | ||
262 | dev->mem_start = 0xd0000; | ||
263 | |||
264 | ei_status.mem = ioremap(dev->mem_start, 2*1024); | ||
265 | if (!ei_status.mem) { | ||
266 | printk("unable to remap memory\n"); | ||
267 | retval = -EAGAIN; | ||
268 | goto out; | ||
269 | } | ||
270 | |||
271 | #ifdef notdef | ||
272 | /* These values are unused. The E2100 has a 2K window into the packet | ||
273 | buffer. The window can be set to start on any page boundary. */ | ||
274 | ei_status.rmem_start = dev->mem_start + TX_PAGES*256; | ||
275 | dev->mem_end = ei_status.rmem_end = dev->mem_start + 2*1024; | ||
276 | #endif | ||
277 | |||
278 | printk(", IRQ %d, %s media, memory @ %#lx.\n", dev->irq, | ||
279 | dev->if_port ? "secondary" : "primary", dev->mem_start); | ||
280 | |||
281 | ei_status.reset_8390 = &e21_reset_8390; | ||
282 | ei_status.block_input = &e21_block_input; | ||
283 | ei_status.block_output = &e21_block_output; | ||
284 | ei_status.get_8390_hdr = &e21_get_8390_hdr; | ||
285 | |||
286 | dev->netdev_ops = &e21_netdev_ops; | ||
287 | NS8390_init(dev, 0); | ||
288 | |||
289 | retval = register_netdev(dev); | ||
290 | if (retval) | ||
291 | goto out; | ||
292 | return 0; | ||
293 | out: | ||
294 | release_region(ioaddr, E21_IO_EXTENT); | ||
295 | return retval; | ||
296 | } | ||
297 | |||
298 | static int | ||
299 | e21_open(struct net_device *dev) | ||
300 | { | ||
301 | short ioaddr = dev->base_addr; | ||
302 | int retval; | ||
303 | |||
304 | if ((retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev))) | ||
305 | return retval; | ||
306 | |||
307 | /* Set the interrupt line and memory base on the hardware. */ | ||
308 | inb(ioaddr + E21_IRQ_LOW); | ||
309 | outb(0, ioaddr + E21_ASIC + (dev->irq & 7)); | ||
310 | inb(ioaddr + E21_IRQ_HIGH); /* High IRQ bit, and if_port. */ | ||
311 | outb(0, ioaddr + E21_ASIC + (dev->irq > 7 ? 1:0) | ||
312 | + (dev->if_port ? E21_ALT_IFPORT : 0)); | ||
313 | inb(ioaddr + E21_MEM_BASE); | ||
314 | outb(0, ioaddr + E21_ASIC + ((dev->mem_start >> 17) & 7)); | ||
315 | |||
316 | ei_open(dev); | ||
317 | return 0; | ||
318 | } | ||
319 | |||
320 | static void | ||
321 | e21_reset_8390(struct net_device *dev) | ||
322 | { | ||
323 | short ioaddr = dev->base_addr; | ||
324 | |||
325 | outb(0x01, ioaddr); | ||
326 | if (ei_debug > 1) printk("resetting the E2180x3 t=%ld...", jiffies); | ||
327 | ei_status.txing = 0; | ||
328 | |||
329 | /* Set up the ASIC registers, just in case something changed them. */ | ||
330 | |||
331 | if (ei_debug > 1) printk("reset done\n"); | ||
332 | } | ||
333 | |||
334 | /* Grab the 8390 specific header. We put the 2k window so the header page | ||
335 | appears at the start of the shared memory. */ | ||
336 | |||
337 | static void | ||
338 | e21_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | ||
339 | { | ||
340 | |||
341 | short ioaddr = dev->base_addr; | ||
342 | char __iomem *shared_mem = ei_status.mem; | ||
343 | |||
344 | mem_on(ioaddr, shared_mem, ring_page); | ||
345 | |||
346 | #ifdef notdef | ||
347 | /* Officially this is what we are doing, but the readl() is faster */ | ||
348 | memcpy_fromio(hdr, shared_mem, sizeof(struct e8390_pkt_hdr)); | ||
349 | #else | ||
350 | ((unsigned int*)hdr)[0] = readl(shared_mem); | ||
351 | #endif | ||
352 | |||
353 | /* Turn off memory access: we would need to reprogram the window anyway. */ | ||
354 | mem_off(ioaddr); | ||
355 | |||
356 | } | ||
357 | |||
358 | /* Block input and output are easy on shared memory ethercards. | ||
359 | The E21xx makes block_input() especially easy by wrapping the top | ||
360 | ring buffer to the bottom automatically. */ | ||
361 | static void | ||
362 | e21_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | ||
363 | { | ||
364 | short ioaddr = dev->base_addr; | ||
365 | char __iomem *shared_mem = ei_status.mem; | ||
366 | |||
367 | mem_on(ioaddr, shared_mem, (ring_offset>>8)); | ||
368 | |||
369 | memcpy_fromio(skb->data, ei_status.mem + (ring_offset & 0xff), count); | ||
370 | |||
371 | mem_off(ioaddr); | ||
372 | } | ||
373 | |||
374 | static void | ||
375 | e21_block_output(struct net_device *dev, int count, const unsigned char *buf, | ||
376 | int start_page) | ||
377 | { | ||
378 | short ioaddr = dev->base_addr; | ||
379 | volatile char __iomem *shared_mem = ei_status.mem; | ||
380 | |||
381 | /* Set the shared memory window start by doing a read, with the low address | ||
382 | bits specifying the starting page. */ | ||
383 | readb(shared_mem + start_page); | ||
384 | mem_on(ioaddr, shared_mem, start_page); | ||
385 | |||
386 | memcpy_toio(shared_mem, buf, count); | ||
387 | mem_off(ioaddr); | ||
388 | } | ||
389 | |||
390 | static int | ||
391 | e21_close(struct net_device *dev) | ||
392 | { | ||
393 | short ioaddr = dev->base_addr; | ||
394 | |||
395 | if (ei_debug > 1) | ||
396 | printk("%s: Shutting down ethercard.\n", dev->name); | ||
397 | |||
398 | free_irq(dev->irq, dev); | ||
399 | dev->irq = ei_status.saved_irq; | ||
400 | |||
401 | /* Shut off the interrupt line and secondary interface. */ | ||
402 | inb(ioaddr + E21_IRQ_LOW); | ||
403 | outb(0, ioaddr + E21_ASIC); | ||
404 | inb(ioaddr + E21_IRQ_HIGH); /* High IRQ bit, and if_port. */ | ||
405 | outb(0, ioaddr + E21_ASIC); | ||
406 | |||
407 | ei_close(dev); | ||
408 | |||
409 | /* Double-check that the memory has been turned off, because really | ||
410 | really bad things happen if it isn't. */ | ||
411 | mem_off(ioaddr); | ||
412 | |||
413 | return 0; | ||
414 | } | ||
415 | |||
416 | |||
417 | #ifdef MODULE | ||
418 | #define MAX_E21_CARDS 4 /* Max number of E21 cards per module */ | ||
419 | static struct net_device *dev_e21[MAX_E21_CARDS]; | ||
420 | static int io[MAX_E21_CARDS]; | ||
421 | static int irq[MAX_E21_CARDS]; | ||
422 | static int mem[MAX_E21_CARDS]; | ||
423 | static int xcvr[MAX_E21_CARDS]; /* choose int. or ext. xcvr */ | ||
424 | |||
425 | module_param_array(io, int, NULL, 0); | ||
426 | module_param_array(irq, int, NULL, 0); | ||
427 | module_param_array(mem, int, NULL, 0); | ||
428 | module_param_array(xcvr, int, NULL, 0); | ||
429 | MODULE_PARM_DESC(io, "I/O base address(es)"); | ||
430 | MODULE_PARM_DESC(irq, "IRQ number(s)"); | ||
431 | MODULE_PARM_DESC(mem, " memory base address(es)"); | ||
432 | MODULE_PARM_DESC(xcvr, "transceiver(s) (0=internal, 1=external)"); | ||
433 | MODULE_DESCRIPTION("Cabletron E2100 ISA ethernet driver"); | ||
434 | MODULE_LICENSE("GPL"); | ||
435 | |||
436 | /* This is set up so that only a single autoprobe takes place per call. | ||
437 | ISA device autoprobes on a running machine are not recommended. */ | ||
438 | |||
439 | int __init init_module(void) | ||
440 | { | ||
441 | struct net_device *dev; | ||
442 | int this_dev, found = 0; | ||
443 | |||
444 | for (this_dev = 0; this_dev < MAX_E21_CARDS; this_dev++) { | ||
445 | if (io[this_dev] == 0) { | ||
446 | if (this_dev != 0) break; /* only autoprobe 1st one */ | ||
447 | printk(KERN_NOTICE "e2100.c: Presently autoprobing (not recommended) for a single card.\n"); | ||
448 | } | ||
449 | dev = alloc_ei_netdev(); | ||
450 | if (!dev) | ||
451 | break; | ||
452 | dev->irq = irq[this_dev]; | ||
453 | dev->base_addr = io[this_dev]; | ||
454 | dev->mem_start = mem[this_dev]; | ||
455 | dev->mem_end = xcvr[this_dev]; /* low 4bits = xcvr sel. */ | ||
456 | if (do_e2100_probe(dev) == 0) { | ||
457 | dev_e21[found++] = dev; | ||
458 | continue; | ||
459 | } | ||
460 | free_netdev(dev); | ||
461 | printk(KERN_WARNING "e2100.c: No E2100 card found (i/o = 0x%x).\n", io[this_dev]); | ||
462 | break; | ||
463 | } | ||
464 | if (found) | ||
465 | return 0; | ||
466 | return -ENXIO; | ||
467 | } | ||
468 | |||
469 | static void cleanup_card(struct net_device *dev) | ||
470 | { | ||
471 | /* NB: e21_close() handles free_irq */ | ||
472 | iounmap(ei_status.mem); | ||
473 | release_region(dev->base_addr, E21_IO_EXTENT); | ||
474 | } | ||
475 | |||
476 | void __exit | ||
477 | cleanup_module(void) | ||
478 | { | ||
479 | int this_dev; | ||
480 | |||
481 | for (this_dev = 0; this_dev < MAX_E21_CARDS; this_dev++) { | ||
482 | struct net_device *dev = dev_e21[this_dev]; | ||
483 | if (dev) { | ||
484 | unregister_netdev(dev); | ||
485 | cleanup_card(dev); | ||
486 | free_netdev(dev); | ||
487 | } | ||
488 | } | ||
489 | } | ||
490 | #endif /* MODULE */ | ||