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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pnp/isapnp
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/pnp/isapnp')
-rw-r--r--drivers/pnp/isapnp/Kconfig11
-rw-r--r--drivers/pnp/isapnp/Makefile7
-rw-r--r--drivers/pnp/isapnp/compat.c91
-rw-r--r--drivers/pnp/isapnp/core.c1156
-rw-r--r--drivers/pnp/isapnp/proc.c171
5 files changed, 1436 insertions, 0 deletions
diff --git a/drivers/pnp/isapnp/Kconfig b/drivers/pnp/isapnp/Kconfig
new file mode 100644
index 000000000000..578651eeb4b0
--- /dev/null
+++ b/drivers/pnp/isapnp/Kconfig
@@ -0,0 +1,11 @@
1#
2# ISA Plug and Play configuration
3#
4config ISAPNP
5 bool "ISA Plug and Play support"
6 depends on PNP && ISA
7 help
8 Say Y here if you would like support for ISA Plug and Play devices.
9 Some information is in <file:Documentation/isapnp.txt>.
10
11 If unsure, say Y.
diff --git a/drivers/pnp/isapnp/Makefile b/drivers/pnp/isapnp/Makefile
new file mode 100644
index 000000000000..cac18bbfb817
--- /dev/null
+++ b/drivers/pnp/isapnp/Makefile
@@ -0,0 +1,7 @@
1#
2# Makefile for the kernel ISAPNP driver.
3#
4
5isapnp-proc-$(CONFIG_PROC_FS) = proc.o
6
7obj-y := core.o compat.o $(isapnp-proc-y)
diff --git a/drivers/pnp/isapnp/compat.c b/drivers/pnp/isapnp/compat.c
new file mode 100644
index 000000000000..3ff7e76b33bd
--- /dev/null
+++ b/drivers/pnp/isapnp/compat.c
@@ -0,0 +1,91 @@
1/*
2 * compat.c - A series of functions to make it easier to convert drivers that use
3 * the old isapnp APIs. If possible use the new APIs instead.
4 *
5 * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
6 *
7 */
8
9/* TODO: see if more isapnp functions are needed here */
10
11#include <linux/config.h>
12#include <linux/module.h>
13#include <linux/isapnp.h>
14#include <linux/string.h>
15
16static void pnp_convert_id(char *buf, unsigned short vendor, unsigned short device)
17{
18 sprintf(buf, "%c%c%c%x%x%x%x",
19 'A' + ((vendor >> 2) & 0x3f) - 1,
20 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
21 'A' + ((vendor >> 8) & 0x1f) - 1,
22 (device >> 4) & 0x0f,
23 device & 0x0f,
24 (device >> 12) & 0x0f,
25 (device >> 8) & 0x0f);
26}
27
28struct pnp_card *pnp_find_card(unsigned short vendor,
29 unsigned short device,
30 struct pnp_card *from)
31{
32 char id[8];
33 char any[8];
34 struct list_head *list;
35 pnp_convert_id(id, vendor, device);
36 pnp_convert_id(any, ISAPNP_ANY_ID, ISAPNP_ANY_ID);
37
38 list = from ? from->global_list.next : pnp_cards.next;
39
40 while (list != &pnp_cards) {
41 struct pnp_card *card = global_to_pnp_card(list);
42 if (compare_pnp_id(card->id,id) || (memcmp(id,any,7)==0))
43 return card;
44 list = list->next;
45 }
46 return NULL;
47}
48
49struct pnp_dev *pnp_find_dev(struct pnp_card *card,
50 unsigned short vendor,
51 unsigned short function,
52 struct pnp_dev *from)
53{
54 char id[8];
55 char any[8];
56 pnp_convert_id(id, vendor, function);
57 pnp_convert_id(any, ISAPNP_ANY_ID, ISAPNP_ANY_ID);
58 if (card == NULL) { /* look for a logical device from all cards */
59 struct list_head *list;
60
61 list = pnp_global.next;
62 if (from)
63 list = from->global_list.next;
64
65 while (list != &pnp_global) {
66 struct pnp_dev *dev = global_to_pnp_dev(list);
67 if (compare_pnp_id(dev->id,id) || (memcmp(id,any,7)==0))
68 return dev;
69 list = list->next;
70 }
71 } else {
72 struct list_head *list;
73
74 list = card->devices.next;
75 if (from) {
76 list = from->card_list.next;
77 if (from->card != card) /* something is wrong */
78 return NULL;
79 }
80 while (list != &card->devices) {
81 struct pnp_dev *dev = card_to_pnp_dev(list);
82 if (compare_pnp_id(dev->id,id))
83 return dev;
84 list = list->next;
85 }
86 }
87 return NULL;
88}
89
90EXPORT_SYMBOL(pnp_find_card);
91EXPORT_SYMBOL(pnp_find_dev);
diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c
new file mode 100644
index 000000000000..82c5edd5b9ee
--- /dev/null
+++ b/drivers/pnp/isapnp/core.c
@@ -0,0 +1,1156 @@
1/*
2 * ISA Plug & Play support
3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 * Changelog:
21 * 2000-01-01 Added quirks handling for buggy hardware
22 * Peter Denison <peterd@pnd-pc.demon.co.uk>
23 * 2000-06-14 Added isapnp_probe_devs() and isapnp_activate_dev()
24 * Christoph Hellwig <hch@infradead.org>
25 * 2001-06-03 Added release_region calls to correspond with
26 * request_region calls when a failure occurs. Also
27 * added KERN_* constants to printk() calls.
28 * 2001-11-07 Added isapnp_{,un}register_driver calls along the lines
29 * of the pci driver interface
30 * Kai Germaschewski <kai.germaschewski@gmx.de>
31 * 2002-06-06 Made the use of dma channel 0 configurable
32 * Gerald Teschl <gerald.teschl@univie.ac.at>
33 * 2002-10-06 Ported to PnP Layer - Adam Belay <ambx1@neo.rr.com>
34 * 2003-08-11 Resource Management Updates - Adam Belay <ambx1@neo.rr.com>
35 */
36
37#include <linux/config.h>
38#include <linux/module.h>
39#include <linux/kernel.h>
40#include <linux/errno.h>
41#include <linux/slab.h>
42#include <linux/delay.h>
43#include <linux/init.h>
44#include <linux/isapnp.h>
45#include <asm/io.h>
46
47#if 0
48#define ISAPNP_REGION_OK
49#endif
50#if 0
51#define ISAPNP_DEBUG
52#endif
53
54int isapnp_disable; /* Disable ISA PnP */
55static int isapnp_rdp; /* Read Data Port */
56static int isapnp_reset = 1; /* reset all PnP cards (deactivate) */
57static int isapnp_verbose = 1; /* verbose mode */
58
59MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
60MODULE_DESCRIPTION("Generic ISA Plug & Play support");
61module_param(isapnp_disable, int, 0);
62MODULE_PARM_DESC(isapnp_disable, "ISA Plug & Play disable");
63module_param(isapnp_rdp, int, 0);
64MODULE_PARM_DESC(isapnp_rdp, "ISA Plug & Play read data port");
65module_param(isapnp_reset, int, 0);
66MODULE_PARM_DESC(isapnp_reset, "ISA Plug & Play reset all cards");
67module_param(isapnp_verbose, int, 0);
68MODULE_PARM_DESC(isapnp_verbose, "ISA Plug & Play verbose mode");
69MODULE_LICENSE("GPL");
70
71#define _PIDXR 0x279
72#define _PNPWRP 0xa79
73
74/* short tags */
75#define _STAG_PNPVERNO 0x01
76#define _STAG_LOGDEVID 0x02
77#define _STAG_COMPATDEVID 0x03
78#define _STAG_IRQ 0x04
79#define _STAG_DMA 0x05
80#define _STAG_STARTDEP 0x06
81#define _STAG_ENDDEP 0x07
82#define _STAG_IOPORT 0x08
83#define _STAG_FIXEDIO 0x09
84#define _STAG_VENDOR 0x0e
85#define _STAG_END 0x0f
86/* long tags */
87#define _LTAG_MEMRANGE 0x81
88#define _LTAG_ANSISTR 0x82
89#define _LTAG_UNICODESTR 0x83
90#define _LTAG_VENDOR 0x84
91#define _LTAG_MEM32RANGE 0x85
92#define _LTAG_FIXEDMEM32RANGE 0x86
93
94static unsigned char isapnp_checksum_value;
95static DECLARE_MUTEX(isapnp_cfg_mutex);
96static int isapnp_detected;
97static int isapnp_csn_count;
98
99/* some prototypes */
100
101static inline void write_data(unsigned char x)
102{
103 outb(x, _PNPWRP);
104}
105
106static inline void write_address(unsigned char x)
107{
108 outb(x, _PIDXR);
109 udelay(20);
110}
111
112static inline unsigned char read_data(void)
113{
114 unsigned char val = inb(isapnp_rdp);
115 return val;
116}
117
118unsigned char isapnp_read_byte(unsigned char idx)
119{
120 write_address(idx);
121 return read_data();
122}
123
124static unsigned short isapnp_read_word(unsigned char idx)
125{
126 unsigned short val;
127
128 val = isapnp_read_byte(idx);
129 val = (val << 8) + isapnp_read_byte(idx+1);
130 return val;
131}
132
133void isapnp_write_byte(unsigned char idx, unsigned char val)
134{
135 write_address(idx);
136 write_data(val);
137}
138
139static void isapnp_write_word(unsigned char idx, unsigned short val)
140{
141 isapnp_write_byte(idx, val >> 8);
142 isapnp_write_byte(idx+1, val);
143}
144
145static void *isapnp_alloc(long size)
146{
147 void *result;
148
149 result = kmalloc(size, GFP_KERNEL);
150 if (!result)
151 return NULL;
152 memset(result, 0, size);
153 return result;
154}
155
156static void isapnp_key(void)
157{
158 unsigned char code = 0x6a, msb;
159 int i;
160
161 mdelay(1);
162 write_address(0x00);
163 write_address(0x00);
164
165 write_address(code);
166
167 for (i = 1; i < 32; i++) {
168 msb = ((code & 0x01) ^ ((code & 0x02) >> 1)) << 7;
169 code = (code >> 1) | msb;
170 write_address(code);
171 }
172}
173
174/* place all pnp cards in wait-for-key state */
175static void isapnp_wait(void)
176{
177 isapnp_write_byte(0x02, 0x02);
178}
179
180static void isapnp_wake(unsigned char csn)
181{
182 isapnp_write_byte(0x03, csn);
183}
184
185static void isapnp_device(unsigned char logdev)
186{
187 isapnp_write_byte(0x07, logdev);
188}
189
190static void isapnp_activate(unsigned char logdev)
191{
192 isapnp_device(logdev);
193 isapnp_write_byte(ISAPNP_CFG_ACTIVATE, 1);
194 udelay(250);
195}
196
197static void isapnp_deactivate(unsigned char logdev)
198{
199 isapnp_device(logdev);
200 isapnp_write_byte(ISAPNP_CFG_ACTIVATE, 0);
201 udelay(500);
202}
203
204static void __init isapnp_peek(unsigned char *data, int bytes)
205{
206 int i, j;
207 unsigned char d=0;
208
209 for (i = 1; i <= bytes; i++) {
210 for (j = 0; j < 20; j++) {
211 d = isapnp_read_byte(0x05);
212 if (d & 1)
213 break;
214 udelay(100);
215 }
216 if (!(d & 1)) {
217 if (data != NULL)
218 *data++ = 0xff;
219 continue;
220 }
221 d = isapnp_read_byte(0x04); /* PRESDI */
222 isapnp_checksum_value += d;
223 if (data != NULL)
224 *data++ = d;
225 }
226}
227
228#define RDP_STEP 32 /* minimum is 4 */
229
230static int isapnp_next_rdp(void)
231{
232 int rdp = isapnp_rdp;
233 static int old_rdp = 0;
234
235 if(old_rdp)
236 {
237 release_region(old_rdp, 1);
238 old_rdp = 0;
239 }
240 while (rdp <= 0x3ff) {
241 /*
242 * We cannot use NE2000 probe spaces for ISAPnP or we
243 * will lock up machines.
244 */
245 if ((rdp < 0x280 || rdp > 0x380) && request_region(rdp, 1, "ISAPnP"))
246 {
247 isapnp_rdp = rdp;
248 old_rdp = rdp;
249 return 0;
250 }
251 rdp += RDP_STEP;
252 }
253 return -1;
254}
255
256/* Set read port address */
257static inline void isapnp_set_rdp(void)
258{
259 isapnp_write_byte(0x00, isapnp_rdp >> 2);
260 udelay(100);
261}
262
263/*
264 * Perform an isolation. The port selection code now tries to avoid
265 * "dangerous to read" ports.
266 */
267
268static int __init isapnp_isolate_rdp_select(void)
269{
270 isapnp_wait();
271 isapnp_key();
272
273 /* Control: reset CSN and conditionally everything else too */
274 isapnp_write_byte(0x02, isapnp_reset ? 0x05 : 0x04);
275 mdelay(2);
276
277 isapnp_wait();
278 isapnp_key();
279 isapnp_wake(0x00);
280
281 if (isapnp_next_rdp() < 0) {
282 isapnp_wait();
283 return -1;
284 }
285
286 isapnp_set_rdp();
287 udelay(1000);
288 write_address(0x01);
289 udelay(1000);
290 return 0;
291}
292
293/*
294 * Isolate (assign uniqued CSN) to all ISA PnP devices.
295 */
296
297static int __init isapnp_isolate(void)
298{
299 unsigned char checksum = 0x6a;
300 unsigned char chksum = 0x00;
301 unsigned char bit = 0x00;
302 int data;
303 int csn = 0;
304 int i;
305 int iteration = 1;
306
307 isapnp_rdp = 0x213;
308 if (isapnp_isolate_rdp_select() < 0)
309 return -1;
310
311 while (1) {
312 for (i = 1; i <= 64; i++) {
313 data = read_data() << 8;
314 udelay(250);
315 data = data | read_data();
316 udelay(250);
317 if (data == 0x55aa)
318 bit = 0x01;
319 checksum = ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7) | (checksum >> 1);
320 bit = 0x00;
321 }
322 for (i = 65; i <= 72; i++) {
323 data = read_data() << 8;
324 udelay(250);
325 data = data | read_data();
326 udelay(250);
327 if (data == 0x55aa)
328 chksum |= (1 << (i - 65));
329 }
330 if (checksum != 0x00 && checksum == chksum) {
331 csn++;
332
333 isapnp_write_byte(0x06, csn);
334 udelay(250);
335 iteration++;
336 isapnp_wake(0x00);
337 isapnp_set_rdp();
338 udelay(1000);
339 write_address(0x01);
340 udelay(1000);
341 goto __next;
342 }
343 if (iteration == 1) {
344 isapnp_rdp += RDP_STEP;
345 if (isapnp_isolate_rdp_select() < 0)
346 return -1;
347 } else if (iteration > 1) {
348 break;
349 }
350 __next:
351 if (csn == 255)
352 break;
353 checksum = 0x6a;
354 chksum = 0x00;
355 bit = 0x00;
356 }
357 isapnp_wait();
358 isapnp_csn_count = csn;
359 return csn;
360}
361
362/*
363 * Read one tag from stream.
364 */
365
366static int __init isapnp_read_tag(unsigned char *type, unsigned short *size)
367{
368 unsigned char tag, tmp[2];
369
370 isapnp_peek(&tag, 1);
371 if (tag == 0) /* invalid tag */
372 return -1;
373 if (tag & 0x80) { /* large item */
374 *type = tag;
375 isapnp_peek(tmp, 2);
376 *size = (tmp[1] << 8) | tmp[0];
377 } else {
378 *type = (tag >> 3) & 0x0f;
379 *size = tag & 0x07;
380 }
381#if 0
382 printk(KERN_DEBUG "tag = 0x%x, type = 0x%x, size = %i\n", tag, *type, *size);
383#endif
384 if (type == 0) /* wrong type */
385 return -1;
386 if (*type == 0xff && *size == 0xffff) /* probably invalid data */
387 return -1;
388 return 0;
389}
390
391/*
392 * Skip specified number of bytes from stream.
393 */
394
395static void __init isapnp_skip_bytes(int count)
396{
397 isapnp_peek(NULL, count);
398}
399
400/*
401 * Parse EISA id.
402 */
403
404static void isapnp_parse_id(struct pnp_dev * dev, unsigned short vendor, unsigned short device)
405{
406 struct pnp_id * id;
407 if (!dev)
408 return;
409 id = isapnp_alloc(sizeof(struct pnp_id));
410 if (!id)
411 return;
412 sprintf(id->id, "%c%c%c%x%x%x%x",
413 'A' + ((vendor >> 2) & 0x3f) - 1,
414 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
415 'A' + ((vendor >> 8) & 0x1f) - 1,
416 (device >> 4) & 0x0f,
417 device & 0x0f,
418 (device >> 12) & 0x0f,
419 (device >> 8) & 0x0f);
420 pnp_add_id(id, dev);
421}
422
423/*
424 * Parse logical device tag.
425 */
426
427static struct pnp_dev * __init isapnp_parse_device(struct pnp_card *card, int size, int number)
428{
429 unsigned char tmp[6];
430 struct pnp_dev *dev;
431
432 isapnp_peek(tmp, size);
433 dev = isapnp_alloc(sizeof(struct pnp_dev));
434 if (!dev)
435 return NULL;
436 dev->number = number;
437 isapnp_parse_id(dev, (tmp[1] << 8) | tmp[0], (tmp[3] << 8) | tmp[2]);
438 dev->regs = tmp[4];
439 dev->card = card;
440 if (size > 5)
441 dev->regs |= tmp[5] << 8;
442 dev->protocol = &isapnp_protocol;
443 dev->capabilities |= PNP_CONFIGURABLE;
444 dev->capabilities |= PNP_READ;
445 dev->capabilities |= PNP_WRITE;
446 dev->capabilities |= PNP_DISABLE;
447 pnp_init_resource_table(&dev->res);
448 return dev;
449}
450
451
452/*
453 * Add IRQ resource to resources list.
454 */
455
456static void __init isapnp_parse_irq_resource(struct pnp_option *option,
457 int size)
458{
459 unsigned char tmp[3];
460 struct pnp_irq *irq;
461 unsigned long bits;
462
463 isapnp_peek(tmp, size);
464 irq = isapnp_alloc(sizeof(struct pnp_irq));
465 if (!irq)
466 return;
467 bits = (tmp[1] << 8) | tmp[0];
468 bitmap_copy(irq->map, &bits, 16);
469 if (size > 2)
470 irq->flags = tmp[2];
471 else
472 irq->flags = IORESOURCE_IRQ_HIGHEDGE;
473 pnp_register_irq_resource(option, irq);
474 return;
475}
476
477/*
478 * Add DMA resource to resources list.
479 */
480
481static void __init isapnp_parse_dma_resource(struct pnp_option *option,
482 int size)
483{
484 unsigned char tmp[2];
485 struct pnp_dma *dma;
486
487 isapnp_peek(tmp, size);
488 dma = isapnp_alloc(sizeof(struct pnp_dma));
489 if (!dma)
490 return;
491 dma->map = tmp[0];
492 dma->flags = tmp[1];
493 pnp_register_dma_resource(option, dma);
494 return;
495}
496
497/*
498 * Add port resource to resources list.
499 */
500
501static void __init isapnp_parse_port_resource(struct pnp_option *option,
502 int size)
503{
504 unsigned char tmp[7];
505 struct pnp_port *port;
506
507 isapnp_peek(tmp, size);
508 port = isapnp_alloc(sizeof(struct pnp_port));
509 if (!port)
510 return;
511 port->min = (tmp[2] << 8) | tmp[1];
512 port->max = (tmp[4] << 8) | tmp[3];
513 port->align = tmp[5];
514 port->size = tmp[6];
515 port->flags = tmp[0] ? PNP_PORT_FLAG_16BITADDR : 0;
516 pnp_register_port_resource(option,port);
517 return;
518}
519
520/*
521 * Add fixed port resource to resources list.
522 */
523
524static void __init isapnp_parse_fixed_port_resource(struct pnp_option *option,
525 int size)
526{
527 unsigned char tmp[3];
528 struct pnp_port *port;
529
530 isapnp_peek(tmp, size);
531 port = isapnp_alloc(sizeof(struct pnp_port));
532 if (!port)
533 return;
534 port->min = port->max = (tmp[1] << 8) | tmp[0];
535 port->size = tmp[2];
536 port->align = 0;
537 port->flags = PNP_PORT_FLAG_FIXED;
538 pnp_register_port_resource(option,port);
539 return;
540}
541
542/*
543 * Add memory resource to resources list.
544 */
545
546static void __init isapnp_parse_mem_resource(struct pnp_option *option,
547 int size)
548{
549 unsigned char tmp[9];
550 struct pnp_mem *mem;
551
552 isapnp_peek(tmp, size);
553 mem = isapnp_alloc(sizeof(struct pnp_mem));
554 if (!mem)
555 return;
556 mem->min = ((tmp[2] << 8) | tmp[1]) << 8;
557 mem->max = ((tmp[4] << 8) | tmp[3]) << 8;
558 mem->align = (tmp[6] << 8) | tmp[5];
559 mem->size = ((tmp[8] << 8) | tmp[7]) << 8;
560 mem->flags = tmp[0];
561 pnp_register_mem_resource(option,mem);
562 return;
563}
564
565/*
566 * Add 32-bit memory resource to resources list.
567 */
568
569static void __init isapnp_parse_mem32_resource(struct pnp_option *option,
570 int size)
571{
572 unsigned char tmp[17];
573 struct pnp_mem *mem;
574
575 isapnp_peek(tmp, size);
576 mem = isapnp_alloc(sizeof(struct pnp_mem));
577 if (!mem)
578 return;
579 mem->min = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1];
580 mem->max = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5];
581 mem->align = (tmp[12] << 24) | (tmp[11] << 16) | (tmp[10] << 8) | tmp[9];
582 mem->size = (tmp[16] << 24) | (tmp[15] << 16) | (tmp[14] << 8) | tmp[13];
583 mem->flags = tmp[0];
584 pnp_register_mem_resource(option,mem);
585}
586
587/*
588 * Add 32-bit fixed memory resource to resources list.
589 */
590
591static void __init isapnp_parse_fixed_mem32_resource(struct pnp_option *option,
592 int size)
593{
594 unsigned char tmp[9];
595 struct pnp_mem *mem;
596
597 isapnp_peek(tmp, size);
598 mem = isapnp_alloc(sizeof(struct pnp_mem));
599 if (!mem)
600 return;
601 mem->min = mem->max = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1];
602 mem->size = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5];
603 mem->align = 0;
604 mem->flags = tmp[0];
605 pnp_register_mem_resource(option,mem);
606}
607
608/*
609 * Parse card name for ISA PnP device.
610 */
611
612static void __init
613isapnp_parse_name(char *name, unsigned int name_max, unsigned short *size)
614{
615 if (name[0] == '\0') {
616 unsigned short size1 = *size >= name_max ? (name_max - 1) : *size;
617 isapnp_peek(name, size1);
618 name[size1] = '\0';
619 *size -= size1;
620
621 /* clean whitespace from end of string */
622 while (size1 > 0 && name[--size1] == ' ')
623 name[size1] = '\0';
624 }
625}
626
627/*
628 * Parse resource map for logical device.
629 */
630
631static int __init isapnp_create_device(struct pnp_card *card,
632 unsigned short size)
633{
634 int number = 0, skip = 0, priority = 0, compat = 0;
635 unsigned char type, tmp[17];
636 struct pnp_option *option;
637 struct pnp_dev *dev;
638 if ((dev = isapnp_parse_device(card, size, number++)) == NULL)
639 return 1;
640 option = pnp_register_independent_option(dev);
641 if (!option) {
642 kfree(dev);
643 return 1;
644 }
645 pnp_add_card_device(card,dev);
646
647 while (1) {
648 if (isapnp_read_tag(&type, &size)<0)
649 return 1;
650 if (skip && type != _STAG_LOGDEVID && type != _STAG_END)
651 goto __skip;
652 switch (type) {
653 case _STAG_LOGDEVID:
654 if (size >= 5 && size <= 6) {
655 if ((dev = isapnp_parse_device(card, size, number++)) == NULL)
656 return 1;
657 size = 0;
658 skip = 0;
659 option = pnp_register_independent_option(dev);
660 if (!option)
661 return 1;
662 pnp_add_card_device(card,dev);
663 } else {
664 skip = 1;
665 }
666 priority = 0;
667 compat = 0;
668 break;
669 case _STAG_COMPATDEVID:
670 if (size == 4 && compat < DEVICE_COUNT_COMPATIBLE) {
671 isapnp_peek(tmp, 4);
672 isapnp_parse_id(dev,(tmp[1] << 8) | tmp[0], (tmp[3] << 8) | tmp[2]);
673 compat++;
674 size = 0;
675 }
676 break;
677 case _STAG_IRQ:
678 if (size < 2 || size > 3)
679 goto __skip;
680 isapnp_parse_irq_resource(option, size);
681 size = 0;
682 break;
683 case _STAG_DMA:
684 if (size != 2)
685 goto __skip;
686 isapnp_parse_dma_resource(option, size);
687 size = 0;
688 break;
689 case _STAG_STARTDEP:
690 if (size > 1)
691 goto __skip;
692 priority = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE;
693 if (size > 0) {
694 isapnp_peek(tmp, size);
695 priority = 0x100 | tmp[0];
696 size = 0;
697 }
698 option = pnp_register_dependent_option(dev,priority);
699 if (!option)
700 return 1;
701 break;
702 case _STAG_ENDDEP:
703 if (size != 0)
704 goto __skip;
705 priority = 0;
706 break;
707 case _STAG_IOPORT:
708 if (size != 7)
709 goto __skip;
710 isapnp_parse_port_resource(option, size);
711 size = 0;
712 break;
713 case _STAG_FIXEDIO:
714 if (size != 3)
715 goto __skip;
716 isapnp_parse_fixed_port_resource(option, size);
717 size = 0;
718 break;
719 case _STAG_VENDOR:
720 break;
721 case _LTAG_MEMRANGE:
722 if (size != 9)
723 goto __skip;
724 isapnp_parse_mem_resource(option, size);
725 size = 0;
726 break;
727 case _LTAG_ANSISTR:
728 isapnp_parse_name(dev->name, sizeof(dev->name), &size);
729 break;
730 case _LTAG_UNICODESTR:
731 /* silently ignore */
732 /* who use unicode for hardware identification? */
733 break;
734 case _LTAG_VENDOR:
735 break;
736 case _LTAG_MEM32RANGE:
737 if (size != 17)
738 goto __skip;
739 isapnp_parse_mem32_resource(option, size);
740 size = 0;
741 break;
742 case _LTAG_FIXEDMEM32RANGE:
743 if (size != 9)
744 goto __skip;
745 isapnp_parse_fixed_mem32_resource(option, size);
746 size = 0;
747 break;
748 case _STAG_END:
749 if (size > 0)
750 isapnp_skip_bytes(size);
751 return 1;
752 default:
753 printk(KERN_ERR "isapnp: unexpected or unknown tag type 0x%x for logical device %i (device %i), ignored\n", type, dev->number, card->number);
754 }
755 __skip:
756 if (size > 0)
757 isapnp_skip_bytes(size);
758 }
759 return 0;
760}
761
762/*
763 * Parse resource map for ISA PnP card.
764 */
765
766static void __init isapnp_parse_resource_map(struct pnp_card *card)
767{
768 unsigned char type, tmp[17];
769 unsigned short size;
770
771 while (1) {
772 if (isapnp_read_tag(&type, &size)<0)
773 return;
774 switch (type) {
775 case _STAG_PNPVERNO:
776 if (size != 2)
777 goto __skip;
778 isapnp_peek(tmp, 2);
779 card->pnpver = tmp[0];
780 card->productver = tmp[1];
781 size = 0;
782 break;
783 case _STAG_LOGDEVID:
784 if (size >= 5 && size <= 6) {
785 if (isapnp_create_device(card, size)==1)
786 return;
787 size = 0;
788 }
789 break;
790 case _STAG_VENDOR:
791 break;
792 case _LTAG_ANSISTR:
793 isapnp_parse_name(card->name, sizeof(card->name), &size);
794 break;
795 case _LTAG_UNICODESTR:
796 /* silently ignore */
797 /* who use unicode for hardware identification? */
798 break;
799 case _LTAG_VENDOR:
800 break;
801 case _STAG_END:
802 if (size > 0)
803 isapnp_skip_bytes(size);
804 return;
805 default:
806 printk(KERN_ERR "isapnp: unexpected or unknown tag type 0x%x for device %i, ignored\n", type, card->number);
807 }
808 __skip:
809 if (size > 0)
810 isapnp_skip_bytes(size);
811 }
812}
813
814/*
815 * Compute ISA PnP checksum for first eight bytes.
816 */
817
818static unsigned char __init isapnp_checksum(unsigned char *data)
819{
820 int i, j;
821 unsigned char checksum = 0x6a, bit, b;
822
823 for (i = 0; i < 8; i++) {
824 b = data[i];
825 for (j = 0; j < 8; j++) {
826 bit = 0;
827 if (b & (1 << j))
828 bit = 1;
829 checksum = ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7) | (checksum >> 1);
830 }
831 }
832 return checksum;
833}
834
835/*
836 * Parse EISA id for ISA PnP card.
837 */
838
839static void isapnp_parse_card_id(struct pnp_card * card, unsigned short vendor, unsigned short device)
840{
841 struct pnp_id * id = isapnp_alloc(sizeof(struct pnp_id));
842 if (!id)
843 return;
844 sprintf(id->id, "%c%c%c%x%x%x%x",
845 'A' + ((vendor >> 2) & 0x3f) - 1,
846 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
847 'A' + ((vendor >> 8) & 0x1f) - 1,
848 (device >> 4) & 0x0f,
849 device & 0x0f,
850 (device >> 12) & 0x0f,
851 (device >> 8) & 0x0f);
852 pnp_add_card_id(id,card);
853}
854
855/*
856 * Build device list for all present ISA PnP devices.
857 */
858
859static int __init isapnp_build_device_list(void)
860{
861 int csn;
862 unsigned char header[9], checksum;
863 struct pnp_card *card;
864
865 isapnp_wait();
866 isapnp_key();
867 for (csn = 1; csn <= isapnp_csn_count; csn++) {
868 isapnp_wake(csn);
869 isapnp_peek(header, 9);
870 checksum = isapnp_checksum(header);
871#if 0
872 printk(KERN_DEBUG "vendor: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
873 header[0], header[1], header[2], header[3],
874 header[4], header[5], header[6], header[7], header[8]);
875 printk(KERN_DEBUG "checksum = 0x%x\n", checksum);
876#endif
877 if ((card = isapnp_alloc(sizeof(struct pnp_card))) == NULL)
878 continue;
879
880 card->number = csn;
881 INIT_LIST_HEAD(&card->devices);
882 isapnp_parse_card_id(card, (header[1] << 8) | header[0], (header[3] << 8) | header[2]);
883 card->serial = (header[7] << 24) | (header[6] << 16) | (header[5] << 8) | header[4];
884 isapnp_checksum_value = 0x00;
885 isapnp_parse_resource_map(card);
886 if (isapnp_checksum_value != 0x00)
887 printk(KERN_ERR "isapnp: checksum for device %i is not valid (0x%x)\n", csn, isapnp_checksum_value);
888 card->checksum = isapnp_checksum_value;
889 card->protocol = &isapnp_protocol;
890
891 pnp_add_card(card);
892 }
893 isapnp_wait();
894 return 0;
895}
896
897/*
898 * Basic configuration routines.
899 */
900
901int isapnp_present(void)
902{
903 struct pnp_card *card;
904 pnp_for_each_card(card) {
905 if (card->protocol == &isapnp_protocol)
906 return 1;
907 }
908 return 0;
909}
910
911int isapnp_cfg_begin(int csn, int logdev)
912{
913 if (csn < 1 || csn > isapnp_csn_count || logdev > 10)
914 return -EINVAL;
915 down(&isapnp_cfg_mutex);
916 isapnp_wait();
917 isapnp_key();
918 isapnp_wake(csn);
919#if 0
920 /* to avoid malfunction when the isapnptools package is used */
921 /* we must set RDP to our value again */
922 /* it is possible to set RDP only in the isolation phase */
923 /* Jens Thoms Toerring <Jens.Toerring@physik.fu-berlin.de> */
924 isapnp_write_byte(0x02, 0x04); /* clear CSN of card */
925 mdelay(2); /* is this necessary? */
926 isapnp_wake(csn); /* bring card into sleep state */
927 isapnp_wake(0); /* bring card into isolation state */
928 isapnp_set_rdp(); /* reset the RDP port */
929 udelay(1000); /* delay 1000us */
930 isapnp_write_byte(0x06, csn); /* reset CSN to previous value */
931 udelay(250); /* is this necessary? */
932#endif
933 if (logdev >= 0)
934 isapnp_device(logdev);
935 return 0;
936}
937
938int isapnp_cfg_end(void)
939{
940 isapnp_wait();
941 up(&isapnp_cfg_mutex);
942 return 0;
943}
944
945
946/*
947 * Inititialization.
948 */
949
950
951EXPORT_SYMBOL(isapnp_protocol);
952EXPORT_SYMBOL(isapnp_present);
953EXPORT_SYMBOL(isapnp_cfg_begin);
954EXPORT_SYMBOL(isapnp_cfg_end);
955EXPORT_SYMBOL(isapnp_read_byte);
956EXPORT_SYMBOL(isapnp_write_byte);
957
958static int isapnp_read_resources(struct pnp_dev *dev, struct pnp_resource_table *res)
959{
960 int tmp, ret;
961
962 dev->active = isapnp_read_byte(ISAPNP_CFG_ACTIVATE);
963 if (dev->active) {
964 for (tmp = 0; tmp < PNP_MAX_PORT; tmp++) {
965 ret = isapnp_read_word(ISAPNP_CFG_PORT + (tmp << 1));
966 if (!ret)
967 continue;
968 res->port_resource[tmp].start = ret;
969 res->port_resource[tmp].flags = IORESOURCE_IO;
970 }
971 for (tmp = 0; tmp < PNP_MAX_MEM; tmp++) {
972 ret = isapnp_read_word(ISAPNP_CFG_MEM + (tmp << 3)) << 8;
973 if (!ret)
974 continue;
975 res->mem_resource[tmp].start = ret;
976 res->mem_resource[tmp].flags = IORESOURCE_MEM;
977 }
978 for (tmp = 0; tmp < PNP_MAX_IRQ; tmp++) {
979 ret = (isapnp_read_word(ISAPNP_CFG_IRQ + (tmp << 1)) >> 8);
980 if (!ret)
981 continue;
982 res->irq_resource[tmp].start = res->irq_resource[tmp].end = ret;
983 res->irq_resource[tmp].flags = IORESOURCE_IRQ;
984 }
985 for (tmp = 0; tmp < PNP_MAX_DMA; tmp++) {
986 ret = isapnp_read_byte(ISAPNP_CFG_DMA + tmp);
987 if (ret == 4)
988 continue;
989 res->dma_resource[tmp].start = res->dma_resource[tmp].end = ret;
990 res->dma_resource[tmp].flags = IORESOURCE_DMA;
991 }
992 }
993 return 0;
994}
995
996static int isapnp_get_resources(struct pnp_dev *dev, struct pnp_resource_table * res)
997{
998 int ret;
999 pnp_init_resource_table(res);
1000 isapnp_cfg_begin(dev->card->number, dev->number);
1001 ret = isapnp_read_resources(dev, res);
1002 isapnp_cfg_end();
1003 return ret;
1004}
1005
1006static int isapnp_set_resources(struct pnp_dev *dev, struct pnp_resource_table * res)
1007{
1008 int tmp;
1009
1010 isapnp_cfg_begin(dev->card->number, dev->number);
1011 dev->active = 1;
1012 for (tmp = 0; tmp < PNP_MAX_PORT && (res->port_resource[tmp].flags & (IORESOURCE_IO | IORESOURCE_UNSET)) == IORESOURCE_IO; tmp++)
1013 isapnp_write_word(ISAPNP_CFG_PORT+(tmp<<1), res->port_resource[tmp].start);
1014 for (tmp = 0; tmp < PNP_MAX_IRQ && (res->irq_resource[tmp].flags & (IORESOURCE_IRQ | IORESOURCE_UNSET)) == IORESOURCE_IRQ; tmp++) {
1015 int irq = res->irq_resource[tmp].start;
1016 if (irq == 2)
1017 irq = 9;
1018 isapnp_write_byte(ISAPNP_CFG_IRQ+(tmp<<1), irq);
1019 }
1020 for (tmp = 0; tmp < PNP_MAX_DMA && (res->dma_resource[tmp].flags & (IORESOURCE_DMA | IORESOURCE_UNSET)) == IORESOURCE_DMA; tmp++)
1021 isapnp_write_byte(ISAPNP_CFG_DMA+tmp, res->dma_resource[tmp].start);
1022 for (tmp = 0; tmp < PNP_MAX_MEM && (res->mem_resource[tmp].flags & (IORESOURCE_MEM | IORESOURCE_UNSET)) == IORESOURCE_MEM; tmp++)
1023 isapnp_write_word(ISAPNP_CFG_MEM+(tmp<<3), (res->mem_resource[tmp].start >> 8) & 0xffff);
1024 /* FIXME: We aren't handling 32bit mems properly here */
1025 isapnp_activate(dev->number);
1026 isapnp_cfg_end();
1027 return 0;
1028}
1029
1030static int isapnp_disable_resources(struct pnp_dev *dev)
1031{
1032 if (!dev || !dev->active)
1033 return -EINVAL;
1034 isapnp_cfg_begin(dev->card->number, dev->number);
1035 isapnp_deactivate(dev->number);
1036 dev->active = 0;
1037 isapnp_cfg_end();
1038 return 0;
1039}
1040
1041struct pnp_protocol isapnp_protocol = {
1042 .name = "ISA Plug and Play",
1043 .get = isapnp_get_resources,
1044 .set = isapnp_set_resources,
1045 .disable = isapnp_disable_resources,
1046};
1047
1048static int __init isapnp_init(void)
1049{
1050 int cards;
1051 struct pnp_card *card;
1052 struct pnp_dev *dev;
1053
1054 if (isapnp_disable) {
1055 isapnp_detected = 0;
1056 printk(KERN_INFO "isapnp: ISA Plug & Play support disabled\n");
1057 return 0;
1058 }
1059#ifdef ISAPNP_REGION_OK
1060 if (!request_region(_PIDXR, 1, "isapnp index")) {
1061 printk(KERN_ERR "isapnp: Index Register 0x%x already used\n", _PIDXR);
1062 return -EBUSY;
1063 }
1064#endif
1065 if (!request_region(_PNPWRP, 1, "isapnp write")) {
1066 printk(KERN_ERR "isapnp: Write Data Register 0x%x already used\n", _PNPWRP);
1067#ifdef ISAPNP_REGION_OK
1068 release_region(_PIDXR, 1);
1069#endif
1070 return -EBUSY;
1071 }
1072
1073 if(pnp_register_protocol(&isapnp_protocol)<0)
1074 return -EBUSY;
1075
1076 /*
1077 * Print a message. The existing ISAPnP code is hanging machines
1078 * so let the user know where.
1079 */
1080
1081 printk(KERN_INFO "isapnp: Scanning for PnP cards...\n");
1082 if (isapnp_rdp >= 0x203 && isapnp_rdp <= 0x3ff) {
1083 isapnp_rdp |= 3;
1084 if (!request_region(isapnp_rdp, 1, "isapnp read")) {
1085 printk(KERN_ERR "isapnp: Read Data Register 0x%x already used\n", isapnp_rdp);
1086#ifdef ISAPNP_REGION_OK
1087 release_region(_PIDXR, 1);
1088#endif
1089 release_region(_PNPWRP, 1);
1090 return -EBUSY;
1091 }
1092 isapnp_set_rdp();
1093 }
1094 isapnp_detected = 1;
1095 if (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff) {
1096 cards = isapnp_isolate();
1097 if (cards < 0 ||
1098 (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff)) {
1099#ifdef ISAPNP_REGION_OK
1100 release_region(_PIDXR, 1);
1101#endif
1102 release_region(_PNPWRP, 1);
1103 isapnp_detected = 0;
1104 printk(KERN_INFO "isapnp: No Plug & Play device found\n");
1105 return 0;
1106 }
1107 request_region(isapnp_rdp, 1, "isapnp read");
1108 }
1109 isapnp_build_device_list();
1110 cards = 0;
1111
1112 protocol_for_each_card(&isapnp_protocol,card) {
1113 cards++;
1114 if (isapnp_verbose) {
1115 printk(KERN_INFO "isapnp: Card '%s'\n", card->name[0]?card->name:"Unknown");
1116 if (isapnp_verbose < 2)
1117 continue;
1118 card_for_each_dev(card,dev) {
1119 printk(KERN_INFO "isapnp: Device '%s'\n", dev->name[0]?dev->name:"Unknown");
1120 }
1121 }
1122 }
1123 if (cards) {
1124 printk(KERN_INFO "isapnp: %i Plug & Play card%s detected total\n", cards, cards>1?"s":"");
1125 } else {
1126 printk(KERN_INFO "isapnp: No Plug & Play card found\n");
1127 }
1128
1129 isapnp_proc_init();
1130 return 0;
1131}
1132
1133device_initcall(isapnp_init);
1134
1135/* format is: noisapnp */
1136
1137static int __init isapnp_setup_disable(char *str)
1138{
1139 isapnp_disable = 1;
1140 return 1;
1141}
1142
1143__setup("noisapnp", isapnp_setup_disable);
1144
1145/* format is: isapnp=rdp,reset,skip_pci_scan,verbose */
1146
1147static int __init isapnp_setup_isapnp(char *str)
1148{
1149 (void)((get_option(&str,&isapnp_rdp) == 2) &&
1150 (get_option(&str,&isapnp_reset) == 2) &&
1151 (get_option(&str,&isapnp_verbose) == 2));
1152 return 1;
1153}
1154
1155__setup("isapnp=", isapnp_setup_isapnp);
1156
diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c
new file mode 100644
index 000000000000..cf54b0a3628e
--- /dev/null
+++ b/drivers/pnp/isapnp/proc.c
@@ -0,0 +1,171 @@
1/*
2 * ISA Plug & Play support
3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 */
21
22#include <linux/config.h>
23#include <linux/module.h>
24#include <linux/isapnp.h>
25#include <linux/proc_fs.h>
26#include <linux/init.h>
27#include <linux/smp_lock.h>
28#include <asm/uaccess.h>
29
30extern struct pnp_protocol isapnp_protocol;
31
32static struct proc_dir_entry *isapnp_proc_bus_dir = NULL;
33
34static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence)
35{
36 loff_t new = -1;
37
38 lock_kernel();
39 switch (whence) {
40 case 0:
41 new = off;
42 break;
43 case 1:
44 new = file->f_pos + off;
45 break;
46 case 2:
47 new = 256 + off;
48 break;
49 }
50 if (new < 0 || new > 256) {
51 unlock_kernel();
52 return -EINVAL;
53 }
54 unlock_kernel();
55 return (file->f_pos = new);
56}
57
58static ssize_t isapnp_proc_bus_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
59{
60 struct inode *ino = file->f_dentry->d_inode;
61 struct proc_dir_entry *dp = PDE(ino);
62 struct pnp_dev *dev = dp->data;
63 int pos = *ppos;
64 int cnt, size = 256;
65
66 if (pos >= size)
67 return 0;
68 if (nbytes >= size)
69 nbytes = size;
70 if (pos + nbytes > size)
71 nbytes = size - pos;
72 cnt = nbytes;
73
74 if (!access_ok(VERIFY_WRITE, buf, cnt))
75 return -EINVAL;
76
77 isapnp_cfg_begin(dev->card->number, dev->number);
78 for ( ; pos < 256 && cnt > 0; pos++, buf++, cnt--) {
79 unsigned char val;
80 val = isapnp_read_byte(pos);
81 __put_user(val, buf);
82 }
83 isapnp_cfg_end();
84
85 *ppos = pos;
86 return nbytes;
87}
88
89static struct file_operations isapnp_proc_bus_file_operations =
90{
91 .llseek = isapnp_proc_bus_lseek,
92 .read = isapnp_proc_bus_read,
93};
94
95static int isapnp_proc_attach_device(struct pnp_dev *dev)
96{
97 struct pnp_card *bus = dev->card;
98 struct proc_dir_entry *de, *e;
99 char name[16];
100
101 if (!(de = bus->procdir)) {
102 sprintf(name, "%02x", bus->number);
103 de = bus->procdir = proc_mkdir(name, isapnp_proc_bus_dir);
104 if (!de)
105 return -ENOMEM;
106 }
107 sprintf(name, "%02x", dev->number);
108 e = dev->procent = create_proc_entry(name, S_IFREG | S_IRUGO, de);
109 if (!e)
110 return -ENOMEM;
111 e->proc_fops = &isapnp_proc_bus_file_operations;
112 e->owner = THIS_MODULE;
113 e->data = dev;
114 e->size = 256;
115 return 0;
116}
117
118#ifdef MODULE
119static int __exit isapnp_proc_detach_device(struct pnp_dev *dev)
120{
121 struct pnp_card *bus = dev->card;
122 struct proc_dir_entry *de;
123 char name[16];
124
125 if (!(de = bus->procdir))
126 return -EINVAL;
127 sprintf(name, "%02x", dev->number);
128 remove_proc_entry(name, de);
129 return 0;
130}
131
132static int __exit isapnp_proc_detach_bus(struct pnp_card *bus)
133{
134 struct proc_dir_entry *de;
135 char name[16];
136
137 if (!(de = bus->procdir))
138 return -EINVAL;
139 sprintf(name, "%02x", bus->number);
140 remove_proc_entry(name, isapnp_proc_bus_dir);
141 return 0;
142}
143#endif /* MODULE */
144
145int __init isapnp_proc_init(void)
146{
147 struct pnp_dev *dev;
148 isapnp_proc_bus_dir = proc_mkdir("isapnp", proc_bus);
149 protocol_for_each_dev(&isapnp_protocol,dev) {
150 isapnp_proc_attach_device(dev);
151 }
152 return 0;
153}
154
155#ifdef MODULE
156int __exit isapnp_proc_done(void)
157{
158 struct pnp_dev *dev;
159 struct pnp_bus *card;
160
161 isapnp_for_each_dev(dev) {
162 isapnp_proc_detach_device(dev);
163 }
164 isapnp_for_each_card(card) {
165 isapnp_proc_detach_bus(card);
166 }
167 if (isapnp_proc_bus_dir)
168 remove_proc_entry("isapnp", proc_bus);
169 return 0;
170}
171#endif /* MODULE */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-28 13:56:26 -0500