1 |
1275 |
phoenix |
/* 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 |
|
|
|
41 |
|
|
#include <linux/kernel.h>
|
42 |
|
|
#include <linux/sched.h>
|
43 |
|
|
#include <linux/errno.h>
|
44 |
|
|
#include <linux/string.h>
|
45 |
|
|
#include <linux/ioport.h>
|
46 |
|
|
#include <linux/netdevice.h>
|
47 |
|
|
#include <linux/etherdevice.h>
|
48 |
|
|
#include <linux/init.h>
|
49 |
|
|
#include <linux/delay.h>
|
50 |
|
|
|
51 |
|
|
#include <asm/io.h>
|
52 |
|
|
#include <asm/system.h>
|
53 |
|
|
|
54 |
|
|
#include "8390.h"
|
55 |
|
|
|
56 |
|
|
static int e21_probe_list[] = {0x300, 0x280, 0x380, 0x220, 0};
|
57 |
|
|
|
58 |
|
|
/* Offsets from the base_addr.
|
59 |
|
|
Read from the ASIC register, and the low three bits of the next outb()
|
60 |
|
|
address is used to set the corresponding register. */
|
61 |
|
|
#define E21_NIC_OFFSET 0 /* Offset to the 8390 NIC. */
|
62 |
|
|
#define E21_ASIC 0x10
|
63 |
|
|
#define E21_MEM_ENABLE 0x10
|
64 |
|
|
#define E21_MEM_ON 0x05 /* Enable memory in 16 bit mode. */
|
65 |
|
|
#define E21_MEM_ON_8 0x07 /* Enable memory in 8 bit mode. */
|
66 |
|
|
#define E21_MEM_BASE 0x11
|
67 |
|
|
#define E21_IRQ_LOW 0x12 /* The low three bits of the IRQ number. */
|
68 |
|
|
#define E21_IRQ_HIGH 0x14 /* The high IRQ bit and media select ... */
|
69 |
|
|
#define E21_MEDIA 0x14 /* (alias). */
|
70 |
|
|
#define E21_ALT_IFPORT 0x02 /* Set to use the other (BNC,AUI) port. */
|
71 |
|
|
#define E21_BIG_MEM 0x04 /* Use a bigger (64K) buffer (we don't) */
|
72 |
|
|
#define E21_SAPROM 0x10 /* Offset to station address data. */
|
73 |
|
|
#define E21_IO_EXTENT 0x20
|
74 |
|
|
|
75 |
|
|
static inline void mem_on(short port, unsigned long mem_base,
|
76 |
|
|
unsigned char start_page )
|
77 |
|
|
{
|
78 |
|
|
/* This is a little weird: set the shared memory window by doing a
|
79 |
|
|
read. The low address bits specify the starting page. */
|
80 |
|
|
isa_readb(mem_base+start_page);
|
81 |
|
|
inb(port + E21_MEM_ENABLE);
|
82 |
|
|
outb(E21_MEM_ON, port + E21_MEM_ENABLE + E21_MEM_ON);
|
83 |
|
|
}
|
84 |
|
|
|
85 |
|
|
static inline void mem_off(short port)
|
86 |
|
|
{
|
87 |
|
|
inb(port + E21_MEM_ENABLE);
|
88 |
|
|
outb(0x00, port + E21_MEM_ENABLE);
|
89 |
|
|
}
|
90 |
|
|
|
91 |
|
|
/* In other drivers I put the TX pages first, but the E2100 window circuitry
|
92 |
|
|
is designed to have a 4K Tx region last. The windowing circuitry wraps the
|
93 |
|
|
window at 0x2fff->0x0000 so that the packets at e.g. 0x2f00 in the RX ring
|
94 |
|
|
appear contiguously in the window. */
|
95 |
|
|
#define E21_RX_START_PG 0x00 /* First page of RX buffer */
|
96 |
|
|
#define E21_RX_STOP_PG 0x30 /* Last page +1 of RX ring */
|
97 |
|
|
#define E21_BIG_RX_STOP_PG 0xF0 /* Last page +1 of RX ring */
|
98 |
|
|
#define E21_TX_START_PG E21_RX_STOP_PG /* First page of TX buffer */
|
99 |
|
|
|
100 |
|
|
int e2100_probe(struct net_device *dev);
|
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 |
|
|
|
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 |
|
|
int __init e2100_probe(struct net_device *dev)
|
123 |
|
|
{
|
124 |
|
|
int *port;
|
125 |
|
|
int base_addr = dev->base_addr;
|
126 |
|
|
|
127 |
|
|
SET_MODULE_OWNER(dev);
|
128 |
|
|
|
129 |
|
|
if (base_addr > 0x1ff) /* Check a single specified location. */
|
130 |
|
|
return e21_probe1(dev, base_addr);
|
131 |
|
|
else if (base_addr != 0) /* Don't probe at all. */
|
132 |
|
|
return -ENXIO;
|
133 |
|
|
|
134 |
|
|
for (port = e21_probe_list; *port; port++)
|
135 |
|
|
if (e21_probe1(dev, *port) == 0)
|
136 |
|
|
return 0;
|
137 |
|
|
|
138 |
|
|
return -ENODEV;
|
139 |
|
|
}
|
140 |
|
|
|
141 |
|
|
static int __init e21_probe1(struct net_device *dev, int ioaddr)
|
142 |
|
|
{
|
143 |
|
|
int i, status, retval;
|
144 |
|
|
unsigned char *station_addr = dev->dev_addr;
|
145 |
|
|
static unsigned version_printed;
|
146 |
|
|
|
147 |
|
|
if (!request_region(ioaddr, E21_IO_EXTENT, dev->name))
|
148 |
|
|
return -EBUSY;
|
149 |
|
|
|
150 |
|
|
/* First check the station address for the Ctron prefix. */
|
151 |
|
|
if (inb(ioaddr + E21_SAPROM + 0) != 0x00
|
152 |
|
|
|| inb(ioaddr + E21_SAPROM + 1) != 0x00
|
153 |
|
|
|| inb(ioaddr + E21_SAPROM + 2) != 0x1d) {
|
154 |
|
|
retval = -ENODEV;
|
155 |
|
|
goto out;
|
156 |
|
|
}
|
157 |
|
|
|
158 |
|
|
/* Verify by making certain that there is a 8390 at there. */
|
159 |
|
|
outb(E8390_NODMA + E8390_STOP, ioaddr);
|
160 |
|
|
udelay(1); /* we want to delay one I/O cycle - which is 2MHz */
|
161 |
|
|
status = inb(ioaddr);
|
162 |
|
|
if (status != 0x21 && status != 0x23) {
|
163 |
|
|
retval = -ENODEV;
|
164 |
|
|
goto out;
|
165 |
|
|
}
|
166 |
|
|
|
167 |
|
|
/* Read the station address PROM. */
|
168 |
|
|
for (i = 0; i < 6; i++)
|
169 |
|
|
station_addr[i] = inb(ioaddr + E21_SAPROM + i);
|
170 |
|
|
|
171 |
|
|
inb(ioaddr + E21_MEDIA); /* Point to media selection. */
|
172 |
|
|
outb(0, ioaddr + E21_ASIC); /* and disable the secondary interface. */
|
173 |
|
|
|
174 |
|
|
if (ei_debug && version_printed++ == 0)
|
175 |
|
|
printk(version);
|
176 |
|
|
|
177 |
|
|
for (i = 0; i < 6; i++)
|
178 |
|
|
printk(" %02X", station_addr[i]);
|
179 |
|
|
|
180 |
|
|
/* Allocate dev->priv and fill in 8390 specific dev fields. */
|
181 |
|
|
if (ethdev_init(dev)) {
|
182 |
|
|
printk (" unable to get memory for dev->priv.\n");
|
183 |
|
|
retval = -ENOMEM;
|
184 |
|
|
goto out;
|
185 |
|
|
}
|
186 |
|
|
|
187 |
|
|
if (dev->irq < 2) {
|
188 |
|
|
int irqlist[] = {15,11,10,12,5,9,3,4}, i;
|
189 |
|
|
for (i = 0; i < 8; i++)
|
190 |
|
|
if (request_irq (irqlist[i], NULL, 0, "bogus", NULL) != -EBUSY) {
|
191 |
|
|
dev->irq = irqlist[i];
|
192 |
|
|
break;
|
193 |
|
|
}
|
194 |
|
|
if (i >= 8) {
|
195 |
|
|
printk(" unable to get IRQ %d.\n", dev->irq);
|
196 |
|
|
kfree(dev->priv);
|
197 |
|
|
dev->priv = NULL;
|
198 |
|
|
retval = -EAGAIN;
|
199 |
|
|
goto out;
|
200 |
|
|
}
|
201 |
|
|
} else if (dev->irq == 2) /* Fixup luser bogosity: IRQ2 is really IRQ9 */
|
202 |
|
|
dev->irq = 9;
|
203 |
|
|
|
204 |
|
|
/* The 8390 is at the base address. */
|
205 |
|
|
dev->base_addr = ioaddr;
|
206 |
|
|
|
207 |
|
|
ei_status.name = "E2100";
|
208 |
|
|
ei_status.word16 = 1;
|
209 |
|
|
ei_status.tx_start_page = E21_TX_START_PG;
|
210 |
|
|
ei_status.rx_start_page = E21_RX_START_PG;
|
211 |
|
|
ei_status.stop_page = E21_RX_STOP_PG;
|
212 |
|
|
ei_status.saved_irq = dev->irq;
|
213 |
|
|
|
214 |
|
|
/* Check the media port used. The port can be passed in on the
|
215 |
|
|
low mem_end bits. */
|
216 |
|
|
if (dev->mem_end & 15)
|
217 |
|
|
dev->if_port = dev->mem_end & 7;
|
218 |
|
|
else {
|
219 |
|
|
dev->if_port = 0;
|
220 |
|
|
inb(ioaddr + E21_MEDIA); /* Turn automatic media detection on. */
|
221 |
|
|
for(i = 0; i < 6; i++)
|
222 |
|
|
if (station_addr[i] != inb(ioaddr + E21_SAPROM + 8 + i)) {
|
223 |
|
|
dev->if_port = 1;
|
224 |
|
|
break;
|
225 |
|
|
}
|
226 |
|
|
}
|
227 |
|
|
|
228 |
|
|
/* Never map in the E21 shared memory unless you are actively using it.
|
229 |
|
|
Also, the shared memory has effective only one setting -- spread all
|
230 |
|
|
over the 128K region! */
|
231 |
|
|
if (dev->mem_start == 0)
|
232 |
|
|
dev->mem_start = 0xd0000;
|
233 |
|
|
|
234 |
|
|
#ifdef notdef
|
235 |
|
|
/* These values are unused. The E2100 has a 2K window into the packet
|
236 |
|
|
buffer. The window can be set to start on any page boundary. */
|
237 |
|
|
dev->rmem_start = dev->mem_start + TX_PAGES*256;
|
238 |
|
|
dev->mem_end = dev->rmem_end = dev->mem_start + 2*1024;
|
239 |
|
|
#endif
|
240 |
|
|
|
241 |
|
|
printk(", IRQ %d, %s media, memory @ %#lx.\n", dev->irq,
|
242 |
|
|
dev->if_port ? "secondary" : "primary", dev->mem_start);
|
243 |
|
|
|
244 |
|
|
ei_status.reset_8390 = &e21_reset_8390;
|
245 |
|
|
ei_status.block_input = &e21_block_input;
|
246 |
|
|
ei_status.block_output = &e21_block_output;
|
247 |
|
|
ei_status.get_8390_hdr = &e21_get_8390_hdr;
|
248 |
|
|
dev->open = &e21_open;
|
249 |
|
|
dev->stop = &e21_close;
|
250 |
|
|
NS8390_init(dev, 0);
|
251 |
|
|
|
252 |
|
|
return 0;
|
253 |
|
|
out:
|
254 |
|
|
release_region(ioaddr, E21_IO_EXTENT);
|
255 |
|
|
return retval;
|
256 |
|
|
}
|
257 |
|
|
|
258 |
|
|
static int
|
259 |
|
|
e21_open(struct net_device *dev)
|
260 |
|
|
{
|
261 |
|
|
short ioaddr = dev->base_addr;
|
262 |
|
|
int retval;
|
263 |
|
|
|
264 |
|
|
if ((retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev)))
|
265 |
|
|
return retval;
|
266 |
|
|
|
267 |
|
|
/* Set the interrupt line and memory base on the hardware. */
|
268 |
|
|
inb(ioaddr + E21_IRQ_LOW);
|
269 |
|
|
outb(0, ioaddr + E21_ASIC + (dev->irq & 7));
|
270 |
|
|
inb(ioaddr + E21_IRQ_HIGH); /* High IRQ bit, and if_port. */
|
271 |
|
|
outb(0, ioaddr + E21_ASIC + (dev->irq > 7 ? 1:0)
|
272 |
|
|
+ (dev->if_port ? E21_ALT_IFPORT : 0));
|
273 |
|
|
inb(ioaddr + E21_MEM_BASE);
|
274 |
|
|
outb(0, ioaddr + E21_ASIC + ((dev->mem_start >> 17) & 7));
|
275 |
|
|
|
276 |
|
|
ei_open(dev);
|
277 |
|
|
return 0;
|
278 |
|
|
}
|
279 |
|
|
|
280 |
|
|
static void
|
281 |
|
|
e21_reset_8390(struct net_device *dev)
|
282 |
|
|
{
|
283 |
|
|
short ioaddr = dev->base_addr;
|
284 |
|
|
|
285 |
|
|
outb(0x01, ioaddr);
|
286 |
|
|
if (ei_debug > 1) printk("resetting the E2180x3 t=%ld...", jiffies);
|
287 |
|
|
ei_status.txing = 0;
|
288 |
|
|
|
289 |
|
|
/* Set up the ASIC registers, just in case something changed them. */
|
290 |
|
|
|
291 |
|
|
if (ei_debug > 1) printk("reset done\n");
|
292 |
|
|
return;
|
293 |
|
|
}
|
294 |
|
|
|
295 |
|
|
/* Grab the 8390 specific header. We put the 2k window so the header page
|
296 |
|
|
appears at the start of the shared memory. */
|
297 |
|
|
|
298 |
|
|
static void
|
299 |
|
|
e21_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
|
300 |
|
|
{
|
301 |
|
|
|
302 |
|
|
short ioaddr = dev->base_addr;
|
303 |
|
|
unsigned long shared_mem = dev->mem_start;
|
304 |
|
|
|
305 |
|
|
mem_on(ioaddr, shared_mem, ring_page);
|
306 |
|
|
|
307 |
|
|
#ifdef notdef
|
308 |
|
|
/* Officially this is what we are doing, but the readl() is faster */
|
309 |
|
|
isa_memcpy_fromio(hdr, shared_mem, sizeof(struct e8390_pkt_hdr));
|
310 |
|
|
#else
|
311 |
|
|
((unsigned int*)hdr)[0] = isa_readl(shared_mem);
|
312 |
|
|
#endif
|
313 |
|
|
|
314 |
|
|
/* Turn off memory access: we would need to reprogram the window anyway. */
|
315 |
|
|
mem_off(ioaddr);
|
316 |
|
|
|
317 |
|
|
}
|
318 |
|
|
|
319 |
|
|
/* Block input and output are easy on shared memory ethercards.
|
320 |
|
|
The E21xx makes block_input() especially easy by wrapping the top
|
321 |
|
|
ring buffer to the bottom automatically. */
|
322 |
|
|
static void
|
323 |
|
|
e21_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
|
324 |
|
|
{
|
325 |
|
|
short ioaddr = dev->base_addr;
|
326 |
|
|
|
327 |
|
|
mem_on(ioaddr, dev->mem_start, (ring_offset>>8));
|
328 |
|
|
|
329 |
|
|
/* Packet is always in one chunk -- we can copy + cksum. */
|
330 |
|
|
isa_eth_io_copy_and_sum(skb, dev->mem_start + (ring_offset & 0xff), count, 0);
|
331 |
|
|
|
332 |
|
|
mem_off(ioaddr);
|
333 |
|
|
}
|
334 |
|
|
|
335 |
|
|
static void
|
336 |
|
|
e21_block_output(struct net_device *dev, int count, const unsigned char *buf,
|
337 |
|
|
int start_page)
|
338 |
|
|
{
|
339 |
|
|
short ioaddr = dev->base_addr;
|
340 |
|
|
unsigned long shared_mem = dev->mem_start;
|
341 |
|
|
|
342 |
|
|
/* Set the shared memory window start by doing a read, with the low address
|
343 |
|
|
bits specifying the starting page. */
|
344 |
|
|
isa_readb(shared_mem + start_page);
|
345 |
|
|
mem_on(ioaddr, shared_mem, start_page);
|
346 |
|
|
|
347 |
|
|
isa_memcpy_toio(shared_mem, buf, count);
|
348 |
|
|
mem_off(ioaddr);
|
349 |
|
|
}
|
350 |
|
|
|
351 |
|
|
static int
|
352 |
|
|
e21_close(struct net_device *dev)
|
353 |
|
|
{
|
354 |
|
|
short ioaddr = dev->base_addr;
|
355 |
|
|
|
356 |
|
|
if (ei_debug > 1)
|
357 |
|
|
printk("%s: Shutting down ethercard.\n", dev->name);
|
358 |
|
|
|
359 |
|
|
free_irq(dev->irq, dev);
|
360 |
|
|
dev->irq = ei_status.saved_irq;
|
361 |
|
|
|
362 |
|
|
/* Shut off the interrupt line and secondary interface. */
|
363 |
|
|
inb(ioaddr + E21_IRQ_LOW);
|
364 |
|
|
outb(0, ioaddr + E21_ASIC);
|
365 |
|
|
inb(ioaddr + E21_IRQ_HIGH); /* High IRQ bit, and if_port. */
|
366 |
|
|
outb(0, ioaddr + E21_ASIC);
|
367 |
|
|
|
368 |
|
|
ei_close(dev);
|
369 |
|
|
|
370 |
|
|
/* Double-check that the memory has been turned off, because really
|
371 |
|
|
really bad things happen if it isn't. */
|
372 |
|
|
mem_off(ioaddr);
|
373 |
|
|
|
374 |
|
|
return 0;
|
375 |
|
|
}
|
376 |
|
|
|
377 |
|
|
|
378 |
|
|
#ifdef MODULE
|
379 |
|
|
#define MAX_E21_CARDS 4 /* Max number of E21 cards per module */
|
380 |
|
|
static struct net_device dev_e21[MAX_E21_CARDS];
|
381 |
|
|
static int io[MAX_E21_CARDS];
|
382 |
|
|
static int irq[MAX_E21_CARDS];
|
383 |
|
|
static int mem[MAX_E21_CARDS];
|
384 |
|
|
static int xcvr[MAX_E21_CARDS]; /* choose int. or ext. xcvr */
|
385 |
|
|
|
386 |
|
|
MODULE_PARM(io, "1-" __MODULE_STRING(MAX_E21_CARDS) "i");
|
387 |
|
|
MODULE_PARM(irq, "1-" __MODULE_STRING(MAX_E21_CARDS) "i");
|
388 |
|
|
MODULE_PARM(mem, "1-" __MODULE_STRING(MAX_E21_CARDS) "i");
|
389 |
|
|
MODULE_PARM(xcvr, "1-" __MODULE_STRING(MAX_E21_CARDS) "i");
|
390 |
|
|
MODULE_PARM_DESC(io, "I/O base address(es)");
|
391 |
|
|
MODULE_PARM_DESC(irq, "IRQ number(s)");
|
392 |
|
|
MODULE_PARM_DESC(mem, " memory base address(es)");
|
393 |
|
|
MODULE_PARM_DESC(xcvr, "tranceiver(s) (0=internal, 1=external)");
|
394 |
|
|
MODULE_DESCRIPTION("Cabletron E2100 ISA ethernet driver");
|
395 |
|
|
MODULE_LICENSE("GPL");
|
396 |
|
|
|
397 |
|
|
/* This is set up so that only a single autoprobe takes place per call.
|
398 |
|
|
ISA device autoprobes on a running machine are not recommended. */
|
399 |
|
|
int
|
400 |
|
|
init_module(void)
|
401 |
|
|
{
|
402 |
|
|
int this_dev, found = 0;
|
403 |
|
|
|
404 |
|
|
for (this_dev = 0; this_dev < MAX_E21_CARDS; this_dev++) {
|
405 |
|
|
struct net_device *dev = &dev_e21[this_dev];
|
406 |
|
|
dev->irq = irq[this_dev];
|
407 |
|
|
dev->base_addr = io[this_dev];
|
408 |
|
|
dev->mem_start = mem[this_dev];
|
409 |
|
|
dev->mem_end = xcvr[this_dev]; /* low 4bits = xcvr sel. */
|
410 |
|
|
dev->init = e2100_probe;
|
411 |
|
|
if (io[this_dev] == 0) {
|
412 |
|
|
if (this_dev != 0) break; /* only autoprobe 1st one */
|
413 |
|
|
printk(KERN_NOTICE "e2100.c: Presently autoprobing (not recommended) for a single card.\n");
|
414 |
|
|
}
|
415 |
|
|
if (register_netdev(dev) != 0) {
|
416 |
|
|
printk(KERN_WARNING "e2100.c: No E2100 card found (i/o = 0x%x).\n", io[this_dev]);
|
417 |
|
|
if (found != 0) { /* Got at least one. */
|
418 |
|
|
return 0;
|
419 |
|
|
}
|
420 |
|
|
return -ENXIO;
|
421 |
|
|
}
|
422 |
|
|
found++;
|
423 |
|
|
}
|
424 |
|
|
return 0;
|
425 |
|
|
}
|
426 |
|
|
|
427 |
|
|
void
|
428 |
|
|
cleanup_module(void)
|
429 |
|
|
{
|
430 |
|
|
int this_dev;
|
431 |
|
|
|
432 |
|
|
for (this_dev = 0; this_dev < MAX_E21_CARDS; this_dev++) {
|
433 |
|
|
struct net_device *dev = &dev_e21[this_dev];
|
434 |
|
|
if (dev->priv != NULL) {
|
435 |
|
|
void *priv = dev->priv;
|
436 |
|
|
/* NB: e21_close() handles free_irq */
|
437 |
|
|
release_region(dev->base_addr, E21_IO_EXTENT);
|
438 |
|
|
unregister_netdev(dev);
|
439 |
|
|
kfree(priv);
|
440 |
|
|
}
|
441 |
|
|
}
|
442 |
|
|
}
|
443 |
|
|
#endif /* MODULE */
|
444 |
|
|
|
445 |
|
|
|
446 |
|
|
/*
|
447 |
|
|
* Local variables:
|
448 |
|
|
* compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c e2100.c"
|
449 |
|
|
* version-control: t
|
450 |
|
|
* tab-width: 4
|
451 |
|
|
* kept-new-versions: 5
|
452 |
|
|
* End:
|
453 |
|
|
*/
|