Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * interface.c - contains everything related to the user interface | |
3 | * | |
c1017a4c | 4 | * Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@perex.cz> |
1da177e4 | 5 | * Copyright 2002 Adam Belay <ambx1@neo.rr.com> |
1da177e4 LT |
6 | */ |
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 | ||
20 | struct 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 | ||
29 | typedef struct pnp_info_buffer pnp_info_buffer_t; | |
30 | ||
9dd78466 | 31 | static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt, ...) |
1da177e4 LT |
32 | { |
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 | ||
9dd78466 BH |
50 | static void pnp_print_port(pnp_info_buffer_t * buffer, char *space, |
51 | struct pnp_port *port) | |
1da177e4 | 52 | { |
9dd78466 BH |
53 | 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); | |
1da177e4 LT |
58 | } |
59 | ||
9dd78466 BH |
60 | static void pnp_print_irq(pnp_info_buffer_t * buffer, char *space, |
61 | struct pnp_irq *irq) | |
1da177e4 LT |
62 | { |
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 | ||
9dd78466 BH |
91 | static void pnp_print_dma(pnp_info_buffer_t * buffer, char *space, |
92 | struct pnp_dma *dma) | |
1da177e4 LT |
93 | { |
94 | int first = 1, i; | |
95 | char *s; | |
96 | ||
97 | pnp_printf(buffer, "%sdma ", space); | |
98 | for (i = 0; i < 8; i++) | |
9dd78466 | 99 | if (dma->map & (1 << i)) { |
1da177e4 LT |
100 | 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 | ||
9dd78466 BH |
143 | static void pnp_print_mem(pnp_info_buffer_t * buffer, char *space, |
144 | struct pnp_mem *mem) | |
1da177e4 LT |
145 | { |
146 | char *s; | |
147 | ||
148 | pnp_printf(buffer, "%sMemory 0x%x-0x%x, align 0x%x, size 0x%x", | |
9dd78466 | 149 | space, mem->min, mem->max, mem->align, mem->size); |
1da177e4 LT |
150 | 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 | ||
9dd78466 | 176 | static void pnp_print_option(pnp_info_buffer_t * buffer, char *space, |
1da177e4 LT |
177 | 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) { | |
9dd78466 | 187 | case PNP_RES_PRIORITY_PREFERRED: |
1da177e4 LT |
188 | s = "preferred"; |
189 | break; | |
9dd78466 | 190 | case PNP_RES_PRIORITY_ACCEPTABLE: |
1da177e4 LT |
191 | s = "acceptable"; |
192 | break; | |
9dd78466 | 193 | case PNP_RES_PRIORITY_FUNCTIONAL: |
1da177e4 LT |
194 | s = "functional"; |
195 | break; | |
9dd78466 | 196 | default: |
1da177e4 LT |
197 | s = "invalid"; |
198 | } | |
9dd78466 | 199 | pnp_printf(buffer, "Dependent: %02i - Priority %s\n", dep, s); |
1da177e4 LT |
200 | } |
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 | ||
9dd78466 BH |
212 | static ssize_t pnp_show_options(struct device *dmdev, |
213 | struct device_attribute *attr, char *buf) | |
1da177e4 LT |
214 | { |
215 | struct pnp_dev *dev = to_pnp_dev(dmdev); | |
9dd78466 BH |
216 | struct pnp_option *independent = dev->independent; |
217 | struct pnp_option *dependent = dev->dependent; | |
1da177e4 LT |
218 | int ret, dep = 1; |
219 | ||
220 | pnp_info_buffer_t *buffer = (pnp_info_buffer_t *) | |
9dd78466 | 221 | pnp_alloc(sizeof(pnp_info_buffer_t)); |
1da177e4 LT |
222 | 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 | ||
9dd78466 | 231 | while (dependent) { |
1da177e4 LT |
232 | 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 | ||
9dd78466 | 241 | static DEVICE_ATTR(options, S_IRUGO, pnp_show_options, NULL); |
1da177e4 | 242 | |
9dd78466 BH |
243 | static ssize_t pnp_show_current_resources(struct device *dmdev, |
244 | struct device_attribute *attr, | |
245 | char *buf) | |
1da177e4 LT |
246 | { |
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 | ||
9dd78466 | 261 | pnp_printf(buffer, "state = "); |
1da177e4 | 262 | if (dev->active) |
9dd78466 | 263 | pnp_printf(buffer, "active\n"); |
1da177e4 | 264 | else |
9dd78466 | 265 | pnp_printf(buffer, "disabled\n"); |
1da177e4 LT |
266 | |
267 | for (i = 0; i < PNP_MAX_PORT; i++) { | |
268 | if (pnp_port_valid(dev, i)) { | |
9dd78466 | 269 | pnp_printf(buffer, "io"); |
1da177e4 | 270 | if (pnp_port_flags(dev, i) & IORESOURCE_DISABLED) |
9dd78466 | 271 | pnp_printf(buffer, " disabled\n"); |
1da177e4 | 272 | else |
9dd78466 BH |
273 | 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)); | |
1da177e4 LT |
278 | } |
279 | } | |
280 | for (i = 0; i < PNP_MAX_MEM; i++) { | |
281 | if (pnp_mem_valid(dev, i)) { | |
9dd78466 | 282 | pnp_printf(buffer, "mem"); |
1da177e4 | 283 | if (pnp_mem_flags(dev, i) & IORESOURCE_DISABLED) |
9dd78466 | 284 | pnp_printf(buffer, " disabled\n"); |
1da177e4 | 285 | else |
9dd78466 BH |
286 | 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)); | |
1da177e4 LT |
291 | } |
292 | } | |
293 | for (i = 0; i < PNP_MAX_IRQ; i++) { | |
294 | if (pnp_irq_valid(dev, i)) { | |
9dd78466 | 295 | pnp_printf(buffer, "irq"); |
1da177e4 | 296 | if (pnp_irq_flags(dev, i) & IORESOURCE_DISABLED) |
9dd78466 | 297 | pnp_printf(buffer, " disabled\n"); |
1da177e4 | 298 | else |
9dd78466 BH |
299 | pnp_printf(buffer, " %lld\n", |
300 | (unsigned long long)pnp_irq(dev, i)); | |
1da177e4 LT |
301 | } |
302 | } | |
303 | for (i = 0; i < PNP_MAX_DMA; i++) { | |
304 | if (pnp_dma_valid(dev, i)) { | |
9dd78466 | 305 | pnp_printf(buffer, "dma"); |
1da177e4 | 306 | if (pnp_dma_flags(dev, i) & IORESOURCE_DISABLED) |
9dd78466 | 307 | pnp_printf(buffer, " disabled\n"); |
1da177e4 | 308 | else |
9dd78466 BH |
309 | pnp_printf(buffer, " %lld\n", |
310 | (unsigned long long)pnp_dma(dev, i)); | |
1da177e4 LT |
311 | } |
312 | } | |
313 | ret = (buffer->curr - buf); | |
314 | kfree(buffer); | |
315 | return ret; | |
316 | } | |
317 | ||
318 | extern struct semaphore pnp_res_mutex; | |
319 | ||
320 | static ssize_t | |
9dd78466 BH |
321 | pnp_set_current_resources(struct device *dmdev, struct device_attribute *attr, |
322 | const char *ubuf, size_t count) | |
1da177e4 LT |
323 | { |
324 | struct pnp_dev *dev = to_pnp_dev(dmdev); | |
9dd78466 BH |
325 | char *buf = (void *)ubuf; |
326 | int retval = 0; | |
1da177e4 LT |
327 | |
328 | if (dev->status & PNP_ATTACHED) { | |
329 | retval = -EBUSY; | |
a05d0781 | 330 | dev_info(&dev->dev, "in use; can't configure\n"); |
1da177e4 LT |
331 | goto done; |
332 | } | |
333 | ||
334 | while (isspace(*buf)) | |
335 | ++buf; | |
9dd78466 | 336 | if (!strnicmp(buf, "disable", 7)) { |
1da177e4 LT |
337 | retval = pnp_disable_dev(dev); |
338 | goto done; | |
339 | } | |
9dd78466 | 340 | if (!strnicmp(buf, "activate", 8)) { |
1da177e4 LT |
341 | retval = pnp_activate_dev(dev); |
342 | goto done; | |
343 | } | |
9dd78466 | 344 | if (!strnicmp(buf, "fill", 4)) { |
1da177e4 LT |
345 | if (dev->active) |
346 | goto done; | |
347 | retval = pnp_auto_config_dev(dev); | |
348 | goto done; | |
349 | } | |
9dd78466 | 350 | if (!strnicmp(buf, "auto", 4)) { |
1da177e4 LT |
351 | if (dev->active) |
352 | goto done; | |
353 | pnp_init_resource_table(&dev->res); | |
354 | retval = pnp_auto_config_dev(dev); | |
355 | goto done; | |
356 | } | |
9dd78466 | 357 | if (!strnicmp(buf, "clear", 5)) { |
1da177e4 LT |
358 | if (dev->active) |
359 | goto done; | |
360 | pnp_init_resource_table(&dev->res); | |
361 | goto done; | |
362 | } | |
9dd78466 | 363 | if (!strnicmp(buf, "get", 3)) { |
1da177e4 LT |
364 | down(&pnp_res_mutex); |
365 | if (pnp_can_read(dev)) | |
366 | dev->protocol->get(dev, &dev->res); | |
367 | up(&pnp_res_mutex); | |
368 | goto done; | |
369 | } | |
9dd78466 | 370 | if (!strnicmp(buf, "set", 3)) { |
1da177e4 LT |
371 | int nport = 0, nmem = 0, nirq = 0, ndma = 0; |
372 | if (dev->active) | |
373 | goto done; | |
374 | buf += 3; | |
375 | pnp_init_resource_table(&dev->res); | |
376 | down(&pnp_res_mutex); | |
377 | while (1) { | |
378 | while (isspace(*buf)) | |
379 | ++buf; | |
9dd78466 | 380 | if (!strnicmp(buf, "io", 2)) { |
1da177e4 LT |
381 | buf += 2; |
382 | while (isspace(*buf)) | |
383 | ++buf; | |
9dd78466 BH |
384 | dev->res.port_resource[nport].start = |
385 | simple_strtoul(buf, &buf, 0); | |
1da177e4 LT |
386 | while (isspace(*buf)) |
387 | ++buf; | |
9dd78466 | 388 | if (*buf == '-') { |
1da177e4 LT |
389 | buf += 1; |
390 | while (isspace(*buf)) | |
391 | ++buf; | |
9dd78466 BH |
392 | dev->res.port_resource[nport].end = |
393 | simple_strtoul(buf, &buf, 0); | |
1da177e4 | 394 | } else |
9dd78466 BH |
395 | dev->res.port_resource[nport].end = |
396 | dev->res.port_resource[nport].start; | |
397 | dev->res.port_resource[nport].flags = | |
398 | IORESOURCE_IO; | |
1da177e4 LT |
399 | nport++; |
400 | if (nport >= PNP_MAX_PORT) | |
401 | break; | |
402 | continue; | |
403 | } | |
9dd78466 | 404 | if (!strnicmp(buf, "mem", 3)) { |
1da177e4 LT |
405 | buf += 3; |
406 | while (isspace(*buf)) | |
407 | ++buf; | |
9dd78466 BH |
408 | dev->res.mem_resource[nmem].start = |
409 | simple_strtoul(buf, &buf, 0); | |
1da177e4 LT |
410 | while (isspace(*buf)) |
411 | ++buf; | |
9dd78466 | 412 | if (*buf == '-') { |
1da177e4 LT |
413 | buf += 1; |
414 | while (isspace(*buf)) | |
415 | ++buf; | |
9dd78466 BH |
416 | dev->res.mem_resource[nmem].end = |
417 | simple_strtoul(buf, &buf, 0); | |
1da177e4 | 418 | } else |
9dd78466 BH |
419 | dev->res.mem_resource[nmem].end = |
420 | dev->res.mem_resource[nmem].start; | |
421 | dev->res.mem_resource[nmem].flags = | |
422 | IORESOURCE_MEM; | |
1da177e4 LT |
423 | nmem++; |
424 | if (nmem >= PNP_MAX_MEM) | |
425 | break; | |
426 | continue; | |
427 | } | |
9dd78466 | 428 | if (!strnicmp(buf, "irq", 3)) { |
1da177e4 LT |
429 | buf += 3; |
430 | while (isspace(*buf)) | |
431 | ++buf; | |
432 | dev->res.irq_resource[nirq].start = | |
9dd78466 BH |
433 | dev->res.irq_resource[nirq].end = |
434 | simple_strtoul(buf, &buf, 0); | |
435 | dev->res.irq_resource[nirq].flags = | |
436 | IORESOURCE_IRQ; | |
1da177e4 LT |
437 | nirq++; |
438 | if (nirq >= PNP_MAX_IRQ) | |
439 | break; | |
440 | continue; | |
441 | } | |
9dd78466 | 442 | if (!strnicmp(buf, "dma", 3)) { |
1da177e4 LT |
443 | buf += 3; |
444 | while (isspace(*buf)) | |
445 | ++buf; | |
446 | dev->res.dma_resource[ndma].start = | |
9dd78466 BH |
447 | dev->res.dma_resource[ndma].end = |
448 | simple_strtoul(buf, &buf, 0); | |
449 | dev->res.dma_resource[ndma].flags = | |
450 | IORESOURCE_DMA; | |
1da177e4 LT |
451 | ndma++; |
452 | if (ndma >= PNP_MAX_DMA) | |
453 | break; | |
454 | continue; | |
455 | } | |
456 | break; | |
457 | } | |
458 | up(&pnp_res_mutex); | |
459 | goto done; | |
460 | } | |
1e0aa9ad BH |
461 | |
462 | done: | |
1da177e4 LT |
463 | if (retval < 0) |
464 | return retval; | |
465 | return count; | |
466 | } | |
467 | ||
9dd78466 BH |
468 | static DEVICE_ATTR(resources, S_IRUGO | S_IWUSR, |
469 | pnp_show_current_resources, pnp_set_current_resources); | |
1da177e4 | 470 | |
9dd78466 BH |
471 | static ssize_t pnp_show_current_ids(struct device *dmdev, |
472 | struct device_attribute *attr, char *buf) | |
1da177e4 LT |
473 | { |
474 | char *str = buf; | |
475 | struct pnp_dev *dev = to_pnp_dev(dmdev); | |
9dd78466 | 476 | struct pnp_id *pos = dev->id; |
1da177e4 LT |
477 | |
478 | while (pos) { | |
9dd78466 | 479 | str += sprintf(str, "%s\n", pos->id); |
1da177e4 LT |
480 | pos = pos->next; |
481 | } | |
482 | return (str - buf); | |
483 | } | |
484 | ||
9dd78466 | 485 | static DEVICE_ATTR(id, S_IRUGO, pnp_show_current_ids, NULL); |
1da177e4 LT |
486 | |
487 | int pnp_interface_attach_device(struct pnp_dev *dev) | |
488 | { | |
9dd78466 | 489 | int rc = device_create_file(&dev->dev, &dev_attr_options); |
07d4e9af | 490 | |
9dd78466 BH |
491 | if (rc) |
492 | goto err; | |
493 | rc = device_create_file(&dev->dev, &dev_attr_resources); | |
494 | if (rc) | |
495 | goto err_opt; | |
496 | rc = device_create_file(&dev->dev, &dev_attr_id); | |
497 | if (rc) | |
498 | goto err_res; | |
bfc7ee20 | 499 | |
1da177e4 | 500 | return 0; |
bfc7ee20 | 501 | |
1e0aa9ad | 502 | err_res: |
9dd78466 | 503 | device_remove_file(&dev->dev, &dev_attr_resources); |
1e0aa9ad | 504 | err_opt: |
9dd78466 | 505 | device_remove_file(&dev->dev, &dev_attr_options); |
1e0aa9ad | 506 | err: |
bfc7ee20 | 507 | return rc; |
1da177e4 | 508 | } |