blob: e0ee28a88da3f90a1712c082e410d1a9ff42c8bc [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * interface.c - contains everything related to the user interface
3 *
Jaroslav Kyselac1017a42007-10-15 09:50:19 +02004 * Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@perex.cz>
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 */
7
8#include <linux/pnp.h>
9#include <linux/string.h>
10#include <linux/errno.h>
11#include <linux/list.h>
12#include <linux/types.h>
13#include <linux/stat.h>
14#include <linux/ctype.h>
15#include <linux/slab.h>
16#include <asm/uaccess.h>
17
18#include "base.h"
19
20struct pnp_info_buffer {
21 char *buffer; /* pointer to begin of buffer */
22 char *curr; /* current position in buffer */
23 unsigned long size; /* current size */
24 unsigned long len; /* total length of buffer */
25 int stop; /* stop flag */
26 int error; /* error code */
27};
28
29typedef struct pnp_info_buffer pnp_info_buffer_t;
30
Bjorn Helgaas9dd78462007-07-26 10:41:20 -070031static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt, ...)
Linus Torvalds1da177e2005-04-16 15:20:36 -070032{
33 va_list args;
34 int res;
35
36 if (buffer->stop || buffer->error)
37 return 0;
38 va_start(args, fmt);
39 res = vsnprintf(buffer->curr, buffer->len - buffer->size, fmt, args);
40 va_end(args);
41 if (buffer->size + res >= buffer->len) {
42 buffer->stop = 1;
43 return 0;
44 }
45 buffer->curr += res;
46 buffer->size += res;
47 return res;
48}
49
Bjorn Helgaas9dd78462007-07-26 10:41:20 -070050static void pnp_print_port(pnp_info_buffer_t * buffer, char *space,
51 struct pnp_port *port)
Linus Torvalds1da177e2005-04-16 15:20:36 -070052{
Bjorn Helgaas9dd78462007-07-26 10:41:20 -070053 pnp_printf(buffer,
54 "%sport 0x%x-0x%x, align 0x%x, size 0x%x, %i-bit address decoding\n",
55 space, port->min, port->max,
56 port->align ? (port->align - 1) : 0, port->size,
57 port->flags & PNP_PORT_FLAG_16BITADDR ? 16 : 10);
Linus Torvalds1da177e2005-04-16 15:20:36 -070058}
59
Bjorn Helgaas9dd78462007-07-26 10:41:20 -070060static void pnp_print_irq(pnp_info_buffer_t * buffer, char *space,
61 struct pnp_irq *irq)
Linus Torvalds1da177e2005-04-16 15:20:36 -070062{
63 int first = 1, i;
64
65 pnp_printf(buffer, "%sirq ", space);
66 for (i = 0; i < PNP_IRQ_NR; i++)
67 if (test_bit(i, irq->map)) {
68 if (!first) {
69 pnp_printf(buffer, ",");
70 } else {
71 first = 0;
72 }
73 if (i == 2 || i == 9)
74 pnp_printf(buffer, "2/9");
75 else
76 pnp_printf(buffer, "%i", i);
77 }
78 if (bitmap_empty(irq->map, PNP_IRQ_NR))
79 pnp_printf(buffer, "<none>");
80 if (irq->flags & IORESOURCE_IRQ_HIGHEDGE)
81 pnp_printf(buffer, " High-Edge");
82 if (irq->flags & IORESOURCE_IRQ_LOWEDGE)
83 pnp_printf(buffer, " Low-Edge");
84 if (irq->flags & IORESOURCE_IRQ_HIGHLEVEL)
85 pnp_printf(buffer, " High-Level");
86 if (irq->flags & IORESOURCE_IRQ_LOWLEVEL)
87 pnp_printf(buffer, " Low-Level");
88 pnp_printf(buffer, "\n");
89}
90
Bjorn Helgaas9dd78462007-07-26 10:41:20 -070091static void pnp_print_dma(pnp_info_buffer_t * buffer, char *space,
92 struct pnp_dma *dma)
Linus Torvalds1da177e2005-04-16 15:20:36 -070093{
94 int first = 1, i;
95 char *s;
96
97 pnp_printf(buffer, "%sdma ", space);
98 for (i = 0; i < 8; i++)
Bjorn Helgaas9dd78462007-07-26 10:41:20 -070099 if (dma->map & (1 << i)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100 if (!first) {
101 pnp_printf(buffer, ",");
102 } else {
103 first = 0;
104 }
105 pnp_printf(buffer, "%i", i);
106 }
107 if (!dma->map)
108 pnp_printf(buffer, "<none>");
109 switch (dma->flags & IORESOURCE_DMA_TYPE_MASK) {
110 case IORESOURCE_DMA_8BIT:
111 s = "8-bit";
112 break;
113 case IORESOURCE_DMA_8AND16BIT:
114 s = "8-bit&16-bit";
115 break;
116 default:
117 s = "16-bit";
118 }
119 pnp_printf(buffer, " %s", s);
120 if (dma->flags & IORESOURCE_DMA_MASTER)
121 pnp_printf(buffer, " master");
122 if (dma->flags & IORESOURCE_DMA_BYTE)
123 pnp_printf(buffer, " byte-count");
124 if (dma->flags & IORESOURCE_DMA_WORD)
125 pnp_printf(buffer, " word-count");
126 switch (dma->flags & IORESOURCE_DMA_SPEED_MASK) {
127 case IORESOURCE_DMA_TYPEA:
128 s = "type-A";
129 break;
130 case IORESOURCE_DMA_TYPEB:
131 s = "type-B";
132 break;
133 case IORESOURCE_DMA_TYPEF:
134 s = "type-F";
135 break;
136 default:
137 s = "compatible";
138 break;
139 }
140 pnp_printf(buffer, " %s\n", s);
141}
142
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700143static void pnp_print_mem(pnp_info_buffer_t * buffer, char *space,
144 struct pnp_mem *mem)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145{
146 char *s;
147
148 pnp_printf(buffer, "%sMemory 0x%x-0x%x, align 0x%x, size 0x%x",
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700149 space, mem->min, mem->max, mem->align, mem->size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 if (mem->flags & IORESOURCE_MEM_WRITEABLE)
151 pnp_printf(buffer, ", writeable");
152 if (mem->flags & IORESOURCE_MEM_CACHEABLE)
153 pnp_printf(buffer, ", cacheable");
154 if (mem->flags & IORESOURCE_MEM_RANGELENGTH)
155 pnp_printf(buffer, ", range-length");
156 if (mem->flags & IORESOURCE_MEM_SHADOWABLE)
157 pnp_printf(buffer, ", shadowable");
158 if (mem->flags & IORESOURCE_MEM_EXPANSIONROM)
159 pnp_printf(buffer, ", expansion ROM");
160 switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) {
161 case IORESOURCE_MEM_8BIT:
162 s = "8-bit";
163 break;
164 case IORESOURCE_MEM_8AND16BIT:
165 s = "8-bit&16-bit";
166 break;
167 case IORESOURCE_MEM_32BIT:
168 s = "32-bit";
169 break;
170 default:
171 s = "16-bit";
172 }
173 pnp_printf(buffer, ", %s\n", s);
174}
175
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700176static void pnp_print_option(pnp_info_buffer_t * buffer, char *space,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 struct pnp_option *option, int dep)
178{
179 char *s;
180 struct pnp_port *port;
181 struct pnp_irq *irq;
182 struct pnp_dma *dma;
183 struct pnp_mem *mem;
184
185 if (dep) {
186 switch (option->priority) {
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700187 case PNP_RES_PRIORITY_PREFERRED:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 s = "preferred";
189 break;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700190 case PNP_RES_PRIORITY_ACCEPTABLE:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191 s = "acceptable";
192 break;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700193 case PNP_RES_PRIORITY_FUNCTIONAL:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 s = "functional";
195 break;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700196 default:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 s = "invalid";
198 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700199 pnp_printf(buffer, "Dependent: %02i - Priority %s\n", dep, s);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 }
201
202 for (port = option->port; port; port = port->next)
203 pnp_print_port(buffer, space, port);
204 for (irq = option->irq; irq; irq = irq->next)
205 pnp_print_irq(buffer, space, irq);
206 for (dma = option->dma; dma; dma = dma->next)
207 pnp_print_dma(buffer, space, dma);
208 for (mem = option->mem; mem; mem = mem->next)
209 pnp_print_mem(buffer, space, mem);
210}
211
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700212static ssize_t pnp_show_options(struct device *dmdev,
213 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214{
215 struct pnp_dev *dev = to_pnp_dev(dmdev);
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700216 struct pnp_option *independent = dev->independent;
217 struct pnp_option *dependent = dev->dependent;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 int ret, dep = 1;
219
220 pnp_info_buffer_t *buffer = (pnp_info_buffer_t *)
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700221 pnp_alloc(sizeof(pnp_info_buffer_t));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 if (!buffer)
223 return -ENOMEM;
224
225 buffer->len = PAGE_SIZE;
226 buffer->buffer = buf;
227 buffer->curr = buffer->buffer;
228 if (independent)
229 pnp_print_option(buffer, "", independent, 0);
230
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700231 while (dependent) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 pnp_print_option(buffer, " ", dependent, dep);
233 dependent = dependent->next;
234 dep++;
235 }
236 ret = (buffer->curr - buf);
237 kfree(buffer);
238 return ret;
239}
240
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700241static DEVICE_ATTR(options, S_IRUGO, pnp_show_options, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700243static ssize_t pnp_show_current_resources(struct device *dmdev,
244 struct device_attribute *attr,
245 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246{
247 struct pnp_dev *dev = to_pnp_dev(dmdev);
248 int i, ret;
249 pnp_info_buffer_t *buffer;
250
251 if (!dev)
252 return -EINVAL;
253
254 buffer = (pnp_info_buffer_t *) pnp_alloc(sizeof(pnp_info_buffer_t));
255 if (!buffer)
256 return -ENOMEM;
257 buffer->len = PAGE_SIZE;
258 buffer->buffer = buf;
259 buffer->curr = buffer->buffer;
260
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700261 pnp_printf(buffer, "state = ");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 if (dev->active)
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700263 pnp_printf(buffer, "active\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 else
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700265 pnp_printf(buffer, "disabled\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266
267 for (i = 0; i < PNP_MAX_PORT; i++) {
268 if (pnp_port_valid(dev, i)) {
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700269 pnp_printf(buffer, "io");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 if (pnp_port_flags(dev, i) & IORESOURCE_DISABLED)
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700271 pnp_printf(buffer, " disabled\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272 else
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700273 pnp_printf(buffer, " 0x%llx-0x%llx\n",
274 (unsigned long long)
275 pnp_port_start(dev, i),
276 (unsigned long long)pnp_port_end(dev,
277 i));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 }
279 }
280 for (i = 0; i < PNP_MAX_MEM; i++) {
281 if (pnp_mem_valid(dev, i)) {
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700282 pnp_printf(buffer, "mem");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 if (pnp_mem_flags(dev, i) & IORESOURCE_DISABLED)
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700284 pnp_printf(buffer, " disabled\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 else
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700286 pnp_printf(buffer, " 0x%llx-0x%llx\n",
287 (unsigned long long)
288 pnp_mem_start(dev, i),
289 (unsigned long long)pnp_mem_end(dev,
290 i));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 }
292 }
293 for (i = 0; i < PNP_MAX_IRQ; i++) {
294 if (pnp_irq_valid(dev, i)) {
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700295 pnp_printf(buffer, "irq");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 if (pnp_irq_flags(dev, i) & IORESOURCE_DISABLED)
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700297 pnp_printf(buffer, " disabled\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298 else
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700299 pnp_printf(buffer, " %lld\n",
300 (unsigned long long)pnp_irq(dev, i));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301 }
302 }
303 for (i = 0; i < PNP_MAX_DMA; i++) {
304 if (pnp_dma_valid(dev, i)) {
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700305 pnp_printf(buffer, "dma");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306 if (pnp_dma_flags(dev, i) & IORESOURCE_DISABLED)
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700307 pnp_printf(buffer, " disabled\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 else
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700309 pnp_printf(buffer, " %lld\n",
310 (unsigned long long)pnp_dma(dev, i));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 }
312 }
313 ret = (buffer->curr - buf);
314 kfree(buffer);
315 return ret;
316}
317
318extern struct semaphore pnp_res_mutex;
319
320static ssize_t
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700321pnp_set_current_resources(struct device *dmdev, struct device_attribute *attr,
322 const char *ubuf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323{
324 struct pnp_dev *dev = to_pnp_dev(dmdev);
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700325 char *buf = (void *)ubuf;
326 int retval = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327
328 if (dev->status & PNP_ATTACHED) {
329 retval = -EBUSY;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700330 pnp_info("Device %s cannot be configured because it is in use.",
331 dev->dev.bus_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 goto done;
333 }
334
335 while (isspace(*buf))
336 ++buf;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700337 if (!strnicmp(buf, "disable", 7)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 retval = pnp_disable_dev(dev);
339 goto done;
340 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700341 if (!strnicmp(buf, "activate", 8)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 retval = pnp_activate_dev(dev);
343 goto done;
344 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700345 if (!strnicmp(buf, "fill", 4)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 if (dev->active)
347 goto done;
348 retval = pnp_auto_config_dev(dev);
349 goto done;
350 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700351 if (!strnicmp(buf, "auto", 4)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 if (dev->active)
353 goto done;
354 pnp_init_resource_table(&dev->res);
355 retval = pnp_auto_config_dev(dev);
356 goto done;
357 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700358 if (!strnicmp(buf, "clear", 5)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 if (dev->active)
360 goto done;
361 pnp_init_resource_table(&dev->res);
362 goto done;
363 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700364 if (!strnicmp(buf, "get", 3)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 down(&pnp_res_mutex);
366 if (pnp_can_read(dev))
367 dev->protocol->get(dev, &dev->res);
368 up(&pnp_res_mutex);
369 goto done;
370 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700371 if (!strnicmp(buf, "set", 3)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 int nport = 0, nmem = 0, nirq = 0, ndma = 0;
373 if (dev->active)
374 goto done;
375 buf += 3;
376 pnp_init_resource_table(&dev->res);
377 down(&pnp_res_mutex);
378 while (1) {
379 while (isspace(*buf))
380 ++buf;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700381 if (!strnicmp(buf, "io", 2)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 buf += 2;
383 while (isspace(*buf))
384 ++buf;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700385 dev->res.port_resource[nport].start =
386 simple_strtoul(buf, &buf, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 while (isspace(*buf))
388 ++buf;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700389 if (*buf == '-') {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 buf += 1;
391 while (isspace(*buf))
392 ++buf;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700393 dev->res.port_resource[nport].end =
394 simple_strtoul(buf, &buf, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 } else
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700396 dev->res.port_resource[nport].end =
397 dev->res.port_resource[nport].start;
398 dev->res.port_resource[nport].flags =
399 IORESOURCE_IO;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 nport++;
401 if (nport >= PNP_MAX_PORT)
402 break;
403 continue;
404 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700405 if (!strnicmp(buf, "mem", 3)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 buf += 3;
407 while (isspace(*buf))
408 ++buf;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700409 dev->res.mem_resource[nmem].start =
410 simple_strtoul(buf, &buf, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 while (isspace(*buf))
412 ++buf;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700413 if (*buf == '-') {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 buf += 1;
415 while (isspace(*buf))
416 ++buf;
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700417 dev->res.mem_resource[nmem].end =
418 simple_strtoul(buf, &buf, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419 } else
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700420 dev->res.mem_resource[nmem].end =
421 dev->res.mem_resource[nmem].start;
422 dev->res.mem_resource[nmem].flags =
423 IORESOURCE_MEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424 nmem++;
425 if (nmem >= PNP_MAX_MEM)
426 break;
427 continue;
428 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700429 if (!strnicmp(buf, "irq", 3)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 buf += 3;
431 while (isspace(*buf))
432 ++buf;
433 dev->res.irq_resource[nirq].start =
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700434 dev->res.irq_resource[nirq].end =
435 simple_strtoul(buf, &buf, 0);
436 dev->res.irq_resource[nirq].flags =
437 IORESOURCE_IRQ;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 nirq++;
439 if (nirq >= PNP_MAX_IRQ)
440 break;
441 continue;
442 }
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700443 if (!strnicmp(buf, "dma", 3)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 buf += 3;
445 while (isspace(*buf))
446 ++buf;
447 dev->res.dma_resource[ndma].start =
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700448 dev->res.dma_resource[ndma].end =
449 simple_strtoul(buf, &buf, 0);
450 dev->res.dma_resource[ndma].flags =
451 IORESOURCE_DMA;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 ndma++;
453 if (ndma >= PNP_MAX_DMA)
454 break;
455 continue;
456 }
457 break;
458 }
459 up(&pnp_res_mutex);
460 goto done;
461 }
Bjorn Helgaas1e0aa9a2007-08-15 10:32:08 -0600462
463done:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464 if (retval < 0)
465 return retval;
466 return count;
467}
468
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700469static DEVICE_ATTR(resources, S_IRUGO | S_IWUSR,
470 pnp_show_current_resources, pnp_set_current_resources);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700472static ssize_t pnp_show_current_ids(struct device *dmdev,
473 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474{
475 char *str = buf;
476 struct pnp_dev *dev = to_pnp_dev(dmdev);
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700477 struct pnp_id *pos = dev->id;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478
479 while (pos) {
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700480 str += sprintf(str, "%s\n", pos->id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 pos = pos->next;
482 }
483 return (str - buf);
484}
485
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700486static DEVICE_ATTR(id, S_IRUGO, pnp_show_current_ids, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487
488int pnp_interface_attach_device(struct pnp_dev *dev)
489{
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700490 int rc = device_create_file(&dev->dev, &dev_attr_options);
Bjorn Helgaas07d4e9a2007-07-26 10:41:21 -0700491
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700492 if (rc)
493 goto err;
494 rc = device_create_file(&dev->dev, &dev_attr_resources);
495 if (rc)
496 goto err_opt;
497 rc = device_create_file(&dev->dev, &dev_attr_id);
498 if (rc)
499 goto err_res;
Jeff Garzikbfc7ee22006-12-06 20:35:33 -0800500
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501 return 0;
Jeff Garzikbfc7ee22006-12-06 20:35:33 -0800502
Bjorn Helgaas1e0aa9a2007-08-15 10:32:08 -0600503err_res:
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700504 device_remove_file(&dev->dev, &dev_attr_resources);
Bjorn Helgaas1e0aa9a2007-08-15 10:32:08 -0600505err_opt:
Bjorn Helgaas9dd78462007-07-26 10:41:20 -0700506 device_remove_file(&dev->dev, &dev_attr_options);
Bjorn Helgaas1e0aa9a2007-08-15 10:32:08 -0600507err:
Jeff Garzikbfc7ee22006-12-06 20:35:33 -0800508 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509}