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1/*
2 * Linux ARCnet driver - "RIM I" (entirely mem-mapped) cards
3 *
4 * Written 1994-1999 by Avery Pennarun.
5 * Written 1999-2000 by Martin Mares <mj@ucw.cz>.
6 * Derived from skeleton.c by Donald Becker.
7 *
8 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
9 * for sponsoring the further development of this driver.
10 *
11 * **********************
12 *
13 * The original copyright of skeleton.c was as follows:
14 *
15 * skeleton.c Written 1993 by Donald Becker.
16 * Copyright 1993 United States Government as represented by the
17 * Director, National Security Agency. This software may only be used
18 * and distributed according to the terms of the GNU General Public License as
19 * modified by SRC, incorporated herein by reference.
20 *
21 * **********************
22 *
23 * For more details, see drivers/net/arcnet.c
24 *
25 * **********************
26 */
27
28#define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt
29
30#include <linux/kernel.h>
31#include <linux/module.h>
32#include <linux/moduleparam.h>
33#include <linux/ioport.h>
34#include <linux/delay.h>
35#include <linux/netdevice.h>
36#include <linux/memblock.h>
37#include <linux/init.h>
38#include <linux/interrupt.h>
39#include <linux/io.h>
40
41#include "arcdevice.h"
42#include "com9026.h"
43
44/* Internal function declarations */
45
46static int arcrimi_probe(struct net_device *dev);
47static int arcrimi_found(struct net_device *dev);
48static void arcrimi_command(struct net_device *dev, int command);
49static int arcrimi_status(struct net_device *dev);
50static void arcrimi_setmask(struct net_device *dev, int mask);
51static int arcrimi_reset(struct net_device *dev, int really_reset);
52static void arcrimi_copy_to_card(struct net_device *dev, int bufnum, int offset,
53 void *buf, int count);
54static void arcrimi_copy_from_card(struct net_device *dev, int bufnum,
55 int offset, void *buf, int count);
56
57/* Handy defines for ARCnet specific stuff */
58
59/* Amount of I/O memory used by the card */
60#define BUFFER_SIZE (512)
61#define MIRROR_SIZE (BUFFER_SIZE * 4)
62
63/* We cannot probe for a RIM I card; one reason is I don't know how to reset
64 * them. In fact, we can't even get their node ID automatically. So, we
65 * need to be passed a specific shmem address, IRQ, and node ID.
66 */
67static int __init arcrimi_probe(struct net_device *dev)
68{
69 if (BUGLVL(D_NORMAL)) {
70 pr_info("%s\n", "RIM I (entirely mem-mapped) support");
71 pr_info("E-mail me if you actually test the RIM I driver, please!\n");
72 pr_info("Given: node %02Xh, shmem %lXh, irq %d\n",
73 dev->dev_addr[0], dev->mem_start, dev->irq);
74 }
75
76 if (dev->mem_start <= 0 || dev->irq <= 0) {
77 if (BUGLVL(D_NORMAL))
78 pr_err("No autoprobe for RIM I; you must specify the shmem and irq!\n");
79 return -ENODEV;
80 }
81 if (dev->dev_addr[0] == 0) {
82 if (BUGLVL(D_NORMAL))
83 pr_err("You need to specify your card's station ID!\n");
84 return -ENODEV;
85 }
86 /* Grab the memory region at mem_start for MIRROR_SIZE bytes.
87 * Later in arcrimi_found() the real size will be determined
88 * and this reserve will be released and the correct size
89 * will be taken.
90 */
91 if (!request_mem_region(dev->mem_start, MIRROR_SIZE, "arcnet (90xx)")) {
92 if (BUGLVL(D_NORMAL))
93 pr_notice("Card memory already allocated\n");
94 return -ENODEV;
95 }
96 return arcrimi_found(dev);
97}
98
99static int check_mirror(unsigned long addr, size_t size)
100{
101 void __iomem *p;
102 int res = -1;
103
104 if (!request_mem_region(addr, size, "arcnet (90xx)"))
105 return -1;
106
107 p = ioremap(addr, size);
108 if (p) {
109 if (arcnet_readb(p, COM9026_REG_R_STATUS) == TESTvalue)
110 res = 1;
111 else
112 res = 0;
113 iounmap(p);
114 }
115
116 release_mem_region(addr, size);
117 return res;
118}
119
120/* Set up the struct net_device associated with this card.
121 * Called after probing succeeds.
122 */
123static int __init arcrimi_found(struct net_device *dev)
124{
125 struct arcnet_local *lp;
126 unsigned long first_mirror, last_mirror, shmem;
127 void __iomem *p;
128 int mirror_size;
129 int err;
130
131 p = ioremap(dev->mem_start, MIRROR_SIZE);
132 if (!p) {
133 release_mem_region(dev->mem_start, MIRROR_SIZE);
134 arc_printk(D_NORMAL, dev, "Can't ioremap\n");
135 return -ENODEV;
136 }
137
138 /* reserve the irq */
139 if (request_irq(dev->irq, arcnet_interrupt, 0, "arcnet (RIM I)", dev)) {
140 iounmap(p);
141 release_mem_region(dev->mem_start, MIRROR_SIZE);
142 arc_printk(D_NORMAL, dev, "Can't get IRQ %d!\n", dev->irq);
143 return -ENODEV;
144 }
145
146 shmem = dev->mem_start;
147 arcnet_writeb(TESTvalue, p, COM9026_REG_W_INTMASK);
148 arcnet_writeb(TESTvalue, p, COM9026_REG_W_COMMAND);
149 /* actually the station/node ID */
150
151 /* find the real shared memory start/end points, including mirrors */
152
153 /* guess the actual size of one "memory mirror" - the number of
154 * bytes between copies of the shared memory. On most cards, it's
155 * 2k (or there are no mirrors at all) but on some, it's 4k.
156 */
157 mirror_size = MIRROR_SIZE;
158 if (arcnet_readb(p, COM9026_REG_R_STATUS) == TESTvalue &&
159 check_mirror(shmem - MIRROR_SIZE, MIRROR_SIZE) == 0 &&
160 check_mirror(shmem - 2 * MIRROR_SIZE, MIRROR_SIZE) == 1)
161 mirror_size = 2 * MIRROR_SIZE;
162
163 first_mirror = shmem - mirror_size;
164 while (check_mirror(first_mirror, mirror_size) == 1)
165 first_mirror -= mirror_size;
166 first_mirror += mirror_size;
167
168 last_mirror = shmem + mirror_size;
169 while (check_mirror(last_mirror, mirror_size) == 1)
170 last_mirror += mirror_size;
171 last_mirror -= mirror_size;
172
173 dev->mem_start = first_mirror;
174 dev->mem_end = last_mirror + MIRROR_SIZE - 1;
175
176 /* initialize the rest of the device structure. */
177
178 lp = netdev_priv(dev);
179 lp->card_name = "RIM I";
180 lp->hw.command = arcrimi_command;
181 lp->hw.status = arcrimi_status;
182 lp->hw.intmask = arcrimi_setmask;
183 lp->hw.reset = arcrimi_reset;
184 lp->hw.owner = THIS_MODULE;
185 lp->hw.copy_to_card = arcrimi_copy_to_card;
186 lp->hw.copy_from_card = arcrimi_copy_from_card;
187
188 /* re-reserve the memory region - arcrimi_probe() alloced this reqion
189 * but didn't know the real size. Free that region and then re-get
190 * with the correct size. There is a VERY slim chance this could
191 * fail.
192 */
193 iounmap(p);
194 release_mem_region(shmem, MIRROR_SIZE);
195 if (!request_mem_region(dev->mem_start,
196 dev->mem_end - dev->mem_start + 1,
197 "arcnet (90xx)")) {
198 arc_printk(D_NORMAL, dev, "Card memory already allocated\n");
199 goto err_free_irq;
200 }
201
202 lp->mem_start = ioremap(dev->mem_start,
203 dev->mem_end - dev->mem_start + 1);
204 if (!lp->mem_start) {
205 arc_printk(D_NORMAL, dev, "Can't remap device memory!\n");
206 goto err_release_mem;
207 }
208
209 /* get and check the station ID from offset 1 in shmem */
210 arcnet_set_addr(dev, arcnet_readb(lp->mem_start,
211 COM9026_REG_R_STATION));
212
213 arc_printk(D_NORMAL, dev, "ARCnet RIM I: station %02Xh found at IRQ %d, ShMem %lXh (%ld*%d bytes)\n",
214 dev->dev_addr[0],
215 dev->irq, dev->mem_start,
216 (dev->mem_end - dev->mem_start + 1) / mirror_size,
217 mirror_size);
218
219 err = register_netdev(dev);
220 if (err)
221 goto err_unmap;
222
223 return 0;
224
225err_unmap:
226 iounmap(lp->mem_start);
227err_release_mem:
228 release_mem_region(dev->mem_start, dev->mem_end - dev->mem_start + 1);
229err_free_irq:
230 free_irq(dev->irq, dev);
231 return -EIO;
232}
233
234/* Do a hardware reset on the card, and set up necessary registers.
235 *
236 * This should be called as little as possible, because it disrupts the
237 * token on the network (causes a RECON) and requires a significant delay.
238 *
239 * However, it does make sure the card is in a defined state.
240 */
241static int arcrimi_reset(struct net_device *dev, int really_reset)
242{
243 struct arcnet_local *lp = netdev_priv(dev);
244 void __iomem *ioaddr = lp->mem_start + 0x800;
245
246 arc_printk(D_INIT, dev, "Resetting %s (status=%02Xh)\n",
247 dev->name, arcnet_readb(ioaddr, COM9026_REG_R_STATUS));
248
249 if (really_reset) {
250 arcnet_writeb(TESTvalue, ioaddr, -0x800); /* fake reset */
251 return 0;
252 }
253 /* clear flags & end reset */
254 arcnet_writeb(CFLAGScmd | RESETclear, ioaddr, COM9026_REG_W_COMMAND);
255 arcnet_writeb(CFLAGScmd | CONFIGclear, ioaddr, COM9026_REG_W_COMMAND);
256
257 /* enable extended (512-byte) packets */
258 arcnet_writeb(CONFIGcmd | EXTconf, ioaddr, COM9026_REG_W_COMMAND);
259
260 /* done! return success. */
261 return 0;
262}
263
264static void arcrimi_setmask(struct net_device *dev, int mask)
265{
266 struct arcnet_local *lp = netdev_priv(dev);
267 void __iomem *ioaddr = lp->mem_start + 0x800;
268
269 arcnet_writeb(mask, ioaddr, COM9026_REG_W_INTMASK);
270}
271
272static int arcrimi_status(struct net_device *dev)
273{
274 struct arcnet_local *lp = netdev_priv(dev);
275 void __iomem *ioaddr = lp->mem_start + 0x800;
276
277 return arcnet_readb(ioaddr, COM9026_REG_R_STATUS);
278}
279
280static void arcrimi_command(struct net_device *dev, int cmd)
281{
282 struct arcnet_local *lp = netdev_priv(dev);
283 void __iomem *ioaddr = lp->mem_start + 0x800;
284
285 arcnet_writeb(cmd, ioaddr, COM9026_REG_W_COMMAND);
286}
287
288static void arcrimi_copy_to_card(struct net_device *dev, int bufnum, int offset,
289 void *buf, int count)
290{
291 struct arcnet_local *lp = netdev_priv(dev);
292 void __iomem *memaddr = lp->mem_start + 0x800 + bufnum * 512 + offset;
293
294 TIME(dev, "memcpy_toio", count, memcpy_toio(memaddr, buf, count));
295}
296
297static void arcrimi_copy_from_card(struct net_device *dev, int bufnum,
298 int offset, void *buf, int count)
299{
300 struct arcnet_local *lp = netdev_priv(dev);
301 void __iomem *memaddr = lp->mem_start + 0x800 + bufnum * 512 + offset;
302
303 TIME(dev, "memcpy_fromio", count, memcpy_fromio(buf, memaddr, count));
304}
305
306static int node;
307static int io; /* use the insmod io= irq= node= options */
308static int irq;
309static char device[9]; /* use eg. device=arc1 to change name */
310
311module_param(node, int, 0);
312module_param(io, int, 0);
313module_param(irq, int, 0);
314module_param_string(device, device, sizeof(device), 0);
315MODULE_DESCRIPTION("ARCnet COM90xx RIM I chipset driver");
316MODULE_LICENSE("GPL");
317
318static struct net_device *my_dev;
319
320static int __init arc_rimi_init(void)
321{
322 struct net_device *dev;
323
324 dev = alloc_arcdev(device);
325 if (!dev)
326 return -ENOMEM;
327
328 if (node && node != 0xff)
329 arcnet_set_addr(dev, node);
330
331 dev->mem_start = io;
332 dev->irq = irq;
333 if (dev->irq == 2)
334 dev->irq = 9;
335
336 if (arcrimi_probe(dev)) {
337 free_arcdev(dev);
338 return -EIO;
339 }
340
341 my_dev = dev;
342 return 0;
343}
344
345static void __exit arc_rimi_exit(void)
346{
347 struct net_device *dev = my_dev;
348 struct arcnet_local *lp = netdev_priv(dev);
349
350 unregister_netdev(dev);
351 iounmap(lp->mem_start);
352 release_mem_region(dev->mem_start, dev->mem_end - dev->mem_start + 1);
353 free_irq(dev->irq, dev);
354 free_arcdev(dev);
355}
356
357#ifndef MODULE
358static int __init arcrimi_setup(char *s)
359{
360 int ints[8];
361
362 s = get_options(s, 8, ints);
363 if (!ints[0])
364 return 1;
365 switch (ints[0]) {
366 default: /* ERROR */
367 pr_err("Too many arguments\n");
368 fallthrough;
369 case 3: /* Node ID */
370 node = ints[3];
371 fallthrough;
372 case 2: /* IRQ */
373 irq = ints[2];
374 fallthrough;
375 case 1: /* IO address */
376 io = ints[1];
377 }
378 if (*s)
379 snprintf(device, sizeof(device), "%s", s);
380 return 1;
381}
382__setup("arcrimi=", arcrimi_setup);
383#endif /* MODULE */
384
385module_init(arc_rimi_init)
386module_exit(arc_rimi_exit)
1/*
2 * Linux ARCnet driver - "RIM I" (entirely mem-mapped) cards
3 *
4 * Written 1994-1999 by Avery Pennarun.
5 * Written 1999-2000 by Martin Mares <mj@ucw.cz>.
6 * Derived from skeleton.c by Donald Becker.
7 *
8 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
9 * for sponsoring the further development of this driver.
10 *
11 * **********************
12 *
13 * The original copyright of skeleton.c was as follows:
14 *
15 * skeleton.c Written 1993 by Donald Becker.
16 * Copyright 1993 United States Government as represented by the
17 * Director, National Security Agency. This software may only be used
18 * and distributed according to the terms of the GNU General Public License as
19 * modified by SRC, incorporated herein by reference.
20 *
21 * **********************
22 *
23 * For more details, see drivers/net/arcnet.c
24 *
25 * **********************
26 */
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/moduleparam.h>
30#include <linux/ioport.h>
31#include <linux/delay.h>
32#include <linux/netdevice.h>
33#include <linux/bootmem.h>
34#include <linux/init.h>
35#include <linux/interrupt.h>
36#include <asm/io.h>
37#include <linux/arcdevice.h>
38
39
40#define VERSION "arcnet: RIM I (entirely mem-mapped) support\n"
41
42
43/* Internal function declarations */
44
45static int arcrimi_probe(struct net_device *dev);
46static int arcrimi_found(struct net_device *dev);
47static void arcrimi_command(struct net_device *dev, int command);
48static int arcrimi_status(struct net_device *dev);
49static void arcrimi_setmask(struct net_device *dev, int mask);
50static int arcrimi_reset(struct net_device *dev, int really_reset);
51static void arcrimi_copy_to_card(struct net_device *dev, int bufnum, int offset,
52 void *buf, int count);
53static void arcrimi_copy_from_card(struct net_device *dev, int bufnum, int offset,
54 void *buf, int count);
55
56/* Handy defines for ARCnet specific stuff */
57
58/* Amount of I/O memory used by the card */
59#define BUFFER_SIZE (512)
60#define MIRROR_SIZE (BUFFER_SIZE*4)
61
62/* COM 9026 controller chip --> ARCnet register addresses */
63#define _INTMASK (ioaddr+0) /* writable */
64#define _STATUS (ioaddr+0) /* readable */
65#define _COMMAND (ioaddr+1) /* writable, returns random vals on read (?) */
66#define _RESET (ioaddr+8) /* software reset (on read) */
67#define _MEMDATA (ioaddr+12) /* Data port for IO-mapped memory */
68#define _ADDR_HI (ioaddr+15) /* Control registers for said */
69#define _ADDR_LO (ioaddr+14)
70#define _CONFIG (ioaddr+2) /* Configuration register */
71
72#undef ASTATUS
73#undef ACOMMAND
74#undef AINTMASK
75
76#define ASTATUS() readb(_STATUS)
77#define ACOMMAND(cmd) writeb((cmd),_COMMAND)
78#define AINTMASK(msk) writeb((msk),_INTMASK)
79#define SETCONF() writeb(lp->config,_CONFIG)
80
81
82/*
83 * We cannot probe for a RIM I card; one reason is I don't know how to reset
84 * them. In fact, we can't even get their node ID automatically. So, we
85 * need to be passed a specific shmem address, IRQ, and node ID.
86 */
87static int __init arcrimi_probe(struct net_device *dev)
88{
89 BUGLVL(D_NORMAL) printk(VERSION);
90 BUGLVL(D_NORMAL) printk("E-mail me if you actually test the RIM I driver, please!\n");
91
92 BUGMSG(D_NORMAL, "Given: node %02Xh, shmem %lXh, irq %d\n",
93 dev->dev_addr[0], dev->mem_start, dev->irq);
94
95 if (dev->mem_start <= 0 || dev->irq <= 0) {
96 BUGMSG(D_NORMAL, "No autoprobe for RIM I; you "
97 "must specify the shmem and irq!\n");
98 return -ENODEV;
99 }
100 if (dev->dev_addr[0] == 0) {
101 BUGMSG(D_NORMAL, "You need to specify your card's station "
102 "ID!\n");
103 return -ENODEV;
104 }
105 /*
106 * Grab the memory region at mem_start for MIRROR_SIZE bytes.
107 * Later in arcrimi_found() the real size will be determined
108 * and this reserve will be released and the correct size
109 * will be taken.
110 */
111 if (!request_mem_region(dev->mem_start, MIRROR_SIZE, "arcnet (90xx)")) {
112 BUGMSG(D_NORMAL, "Card memory already allocated\n");
113 return -ENODEV;
114 }
115 return arcrimi_found(dev);
116}
117
118static int check_mirror(unsigned long addr, size_t size)
119{
120 void __iomem *p;
121 int res = -1;
122
123 if (!request_mem_region(addr, size, "arcnet (90xx)"))
124 return -1;
125
126 p = ioremap(addr, size);
127 if (p) {
128 if (readb(p) == TESTvalue)
129 res = 1;
130 else
131 res = 0;
132 iounmap(p);
133 }
134
135 release_mem_region(addr, size);
136 return res;
137}
138
139/*
140 * Set up the struct net_device associated with this card. Called after
141 * probing succeeds.
142 */
143static int __init arcrimi_found(struct net_device *dev)
144{
145 struct arcnet_local *lp;
146 unsigned long first_mirror, last_mirror, shmem;
147 void __iomem *p;
148 int mirror_size;
149 int err;
150
151 p = ioremap(dev->mem_start, MIRROR_SIZE);
152 if (!p) {
153 release_mem_region(dev->mem_start, MIRROR_SIZE);
154 BUGMSG(D_NORMAL, "Can't ioremap\n");
155 return -ENODEV;
156 }
157
158 /* reserve the irq */
159 if (request_irq(dev->irq, arcnet_interrupt, 0, "arcnet (RIM I)", dev)) {
160 iounmap(p);
161 release_mem_region(dev->mem_start, MIRROR_SIZE);
162 BUGMSG(D_NORMAL, "Can't get IRQ %d!\n", dev->irq);
163 return -ENODEV;
164 }
165
166 shmem = dev->mem_start;
167 writeb(TESTvalue, p);
168 writeb(dev->dev_addr[0], p + 1); /* actually the node ID */
169
170 /* find the real shared memory start/end points, including mirrors */
171
172 /* guess the actual size of one "memory mirror" - the number of
173 * bytes between copies of the shared memory. On most cards, it's
174 * 2k (or there are no mirrors at all) but on some, it's 4k.
175 */
176 mirror_size = MIRROR_SIZE;
177 if (readb(p) == TESTvalue &&
178 check_mirror(shmem - MIRROR_SIZE, MIRROR_SIZE) == 0 &&
179 check_mirror(shmem - 2 * MIRROR_SIZE, MIRROR_SIZE) == 1)
180 mirror_size = 2 * MIRROR_SIZE;
181
182 first_mirror = shmem - mirror_size;
183 while (check_mirror(first_mirror, mirror_size) == 1)
184 first_mirror -= mirror_size;
185 first_mirror += mirror_size;
186
187 last_mirror = shmem + mirror_size;
188 while (check_mirror(last_mirror, mirror_size) == 1)
189 last_mirror += mirror_size;
190 last_mirror -= mirror_size;
191
192 dev->mem_start = first_mirror;
193 dev->mem_end = last_mirror + MIRROR_SIZE - 1;
194
195 /* initialize the rest of the device structure. */
196
197 lp = netdev_priv(dev);
198 lp->card_name = "RIM I";
199 lp->hw.command = arcrimi_command;
200 lp->hw.status = arcrimi_status;
201 lp->hw.intmask = arcrimi_setmask;
202 lp->hw.reset = arcrimi_reset;
203 lp->hw.owner = THIS_MODULE;
204 lp->hw.copy_to_card = arcrimi_copy_to_card;
205 lp->hw.copy_from_card = arcrimi_copy_from_card;
206
207 /*
208 * re-reserve the memory region - arcrimi_probe() alloced this reqion
209 * but didn't know the real size. Free that region and then re-get
210 * with the correct size. There is a VERY slim chance this could
211 * fail.
212 */
213 iounmap(p);
214 release_mem_region(shmem, MIRROR_SIZE);
215 if (!request_mem_region(dev->mem_start,
216 dev->mem_end - dev->mem_start + 1,
217 "arcnet (90xx)")) {
218 BUGMSG(D_NORMAL, "Card memory already allocated\n");
219 goto err_free_irq;
220 }
221
222 lp->mem_start = ioremap(dev->mem_start, dev->mem_end - dev->mem_start + 1);
223 if (!lp->mem_start) {
224 BUGMSG(D_NORMAL, "Can't remap device memory!\n");
225 goto err_release_mem;
226 }
227
228 /* get and check the station ID from offset 1 in shmem */
229 dev->dev_addr[0] = readb(lp->mem_start + 1);
230
231 BUGMSG(D_NORMAL, "ARCnet RIM I: station %02Xh found at IRQ %d, "
232 "ShMem %lXh (%ld*%d bytes).\n",
233 dev->dev_addr[0],
234 dev->irq, dev->mem_start,
235 (dev->mem_end - dev->mem_start + 1) / mirror_size, mirror_size);
236
237 err = register_netdev(dev);
238 if (err)
239 goto err_unmap;
240
241 return 0;
242
243err_unmap:
244 iounmap(lp->mem_start);
245err_release_mem:
246 release_mem_region(dev->mem_start, dev->mem_end - dev->mem_start + 1);
247err_free_irq:
248 free_irq(dev->irq, dev);
249 return -EIO;
250}
251
252
253/*
254 * Do a hardware reset on the card, and set up necessary registers.
255 *
256 * This should be called as little as possible, because it disrupts the
257 * token on the network (causes a RECON) and requires a significant delay.
258 *
259 * However, it does make sure the card is in a defined state.
260 */
261static int arcrimi_reset(struct net_device *dev, int really_reset)
262{
263 struct arcnet_local *lp = netdev_priv(dev);
264 void __iomem *ioaddr = lp->mem_start + 0x800;
265
266 BUGMSG(D_INIT, "Resetting %s (status=%02Xh)\n", dev->name, ASTATUS());
267
268 if (really_reset) {
269 writeb(TESTvalue, ioaddr - 0x800); /* fake reset */
270 return 0;
271 }
272 ACOMMAND(CFLAGScmd | RESETclear); /* clear flags & end reset */
273 ACOMMAND(CFLAGScmd | CONFIGclear);
274
275 /* enable extended (512-byte) packets */
276 ACOMMAND(CONFIGcmd | EXTconf);
277
278 /* done! return success. */
279 return 0;
280}
281
282static void arcrimi_setmask(struct net_device *dev, int mask)
283{
284 struct arcnet_local *lp = netdev_priv(dev);
285 void __iomem *ioaddr = lp->mem_start + 0x800;
286
287 AINTMASK(mask);
288}
289
290static int arcrimi_status(struct net_device *dev)
291{
292 struct arcnet_local *lp = netdev_priv(dev);
293 void __iomem *ioaddr = lp->mem_start + 0x800;
294
295 return ASTATUS();
296}
297
298static void arcrimi_command(struct net_device *dev, int cmd)
299{
300 struct arcnet_local *lp = netdev_priv(dev);
301 void __iomem *ioaddr = lp->mem_start + 0x800;
302
303 ACOMMAND(cmd);
304}
305
306static void arcrimi_copy_to_card(struct net_device *dev, int bufnum, int offset,
307 void *buf, int count)
308{
309 struct arcnet_local *lp = netdev_priv(dev);
310 void __iomem *memaddr = lp->mem_start + 0x800 + bufnum * 512 + offset;
311 TIME("memcpy_toio", count, memcpy_toio(memaddr, buf, count));
312}
313
314
315static void arcrimi_copy_from_card(struct net_device *dev, int bufnum, int offset,
316 void *buf, int count)
317{
318 struct arcnet_local *lp = netdev_priv(dev);
319 void __iomem *memaddr = lp->mem_start + 0x800 + bufnum * 512 + offset;
320 TIME("memcpy_fromio", count, memcpy_fromio(buf, memaddr, count));
321}
322
323static int node;
324static int io; /* use the insmod io= irq= node= options */
325static int irq;
326static char device[9]; /* use eg. device=arc1 to change name */
327
328module_param(node, int, 0);
329module_param(io, int, 0);
330module_param(irq, int, 0);
331module_param_string(device, device, sizeof(device), 0);
332MODULE_LICENSE("GPL");
333
334static struct net_device *my_dev;
335
336static int __init arc_rimi_init(void)
337{
338 struct net_device *dev;
339
340 dev = alloc_arcdev(device);
341 if (!dev)
342 return -ENOMEM;
343
344 if (node && node != 0xff)
345 dev->dev_addr[0] = node;
346
347 dev->mem_start = io;
348 dev->irq = irq;
349 if (dev->irq == 2)
350 dev->irq = 9;
351
352 if (arcrimi_probe(dev)) {
353 free_netdev(dev);
354 return -EIO;
355 }
356
357 my_dev = dev;
358 return 0;
359}
360
361static void __exit arc_rimi_exit(void)
362{
363 struct net_device *dev = my_dev;
364 struct arcnet_local *lp = netdev_priv(dev);
365
366 unregister_netdev(dev);
367 iounmap(lp->mem_start);
368 release_mem_region(dev->mem_start, dev->mem_end - dev->mem_start + 1);
369 free_irq(dev->irq, dev);
370 free_netdev(dev);
371}
372
373#ifndef MODULE
374static int __init arcrimi_setup(char *s)
375{
376 int ints[8];
377 s = get_options(s, 8, ints);
378 if (!ints[0])
379 return 1;
380 switch (ints[0]) {
381 default: /* ERROR */
382 printk("arcrimi: Too many arguments.\n");
383 case 3: /* Node ID */
384 node = ints[3];
385 case 2: /* IRQ */
386 irq = ints[2];
387 case 1: /* IO address */
388 io = ints[1];
389 }
390 if (*s)
391 snprintf(device, sizeof(device), "%s", s);
392 return 1;
393}
394__setup("arcrimi=", arcrimi_setup);
395#endif /* MODULE */
396
397module_init(arc_rimi_init)
398module_exit(arc_rimi_exit)