Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * interface.c - contains everything related to the user interface | |
3 | * | |
4 | * Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@suse.cz> | |
5 | * Copyright 2002 Adam Belay <ambx1@neo.rr.com> | |
6 | * | |
7 | */ | |
8 | ||
9 | #include <linux/pnp.h> | |
10 | #include <linux/string.h> | |
11 | #include <linux/errno.h> | |
12 | #include <linux/list.h> | |
13 | #include <linux/types.h> | |
14 | #include <linux/stat.h> | |
15 | #include <linux/ctype.h> | |
16 | #include <linux/slab.h> | |
17 | #include <asm/uaccess.h> | |
18 | ||
19 | #include "base.h" | |
20 | ||
21 | struct pnp_info_buffer { | |
22 | char *buffer; /* pointer to begin of buffer */ | |
23 | char *curr; /* current position in buffer */ | |
24 | unsigned long size; /* current size */ | |
25 | unsigned long len; /* total length of buffer */ | |
26 | int stop; /* stop flag */ | |
27 | int error; /* error code */ | |
28 | }; | |
29 | ||
30 | typedef struct pnp_info_buffer pnp_info_buffer_t; | |
31 | ||
32 | static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt,...) | |
33 | { | |
34 | va_list args; | |
35 | int res; | |
36 | ||
37 | if (buffer->stop || buffer->error) | |
38 | return 0; | |
39 | va_start(args, fmt); | |
40 | res = vsnprintf(buffer->curr, buffer->len - buffer->size, fmt, args); | |
41 | va_end(args); | |
42 | if (buffer->size + res >= buffer->len) { | |
43 | buffer->stop = 1; | |
44 | return 0; | |
45 | } | |
46 | buffer->curr += res; | |
47 | buffer->size += res; | |
48 | return res; | |
49 | } | |
50 | ||
51 | static void pnp_print_port(pnp_info_buffer_t *buffer, char *space, struct pnp_port *port) | |
52 | { | |
53 | pnp_printf(buffer, "%sport 0x%x-0x%x, align 0x%x, size 0x%x, %i-bit address decoding\n", | |
54 | space, port->min, port->max, port->align ? (port->align-1) : 0, port->size, | |
55 | port->flags & PNP_PORT_FLAG_16BITADDR ? 16 : 10); | |
56 | } | |
57 | ||
58 | static void pnp_print_irq(pnp_info_buffer_t *buffer, char *space, struct pnp_irq *irq) | |
59 | { | |
60 | int first = 1, i; | |
61 | ||
62 | pnp_printf(buffer, "%sirq ", space); | |
63 | for (i = 0; i < PNP_IRQ_NR; i++) | |
64 | if (test_bit(i, irq->map)) { | |
65 | if (!first) { | |
66 | pnp_printf(buffer, ","); | |
67 | } else { | |
68 | first = 0; | |
69 | } | |
70 | if (i == 2 || i == 9) | |
71 | pnp_printf(buffer, "2/9"); | |
72 | else | |
73 | pnp_printf(buffer, "%i", i); | |
74 | } | |
75 | if (bitmap_empty(irq->map, PNP_IRQ_NR)) | |
76 | pnp_printf(buffer, "<none>"); | |
77 | if (irq->flags & IORESOURCE_IRQ_HIGHEDGE) | |
78 | pnp_printf(buffer, " High-Edge"); | |
79 | if (irq->flags & IORESOURCE_IRQ_LOWEDGE) | |
80 | pnp_printf(buffer, " Low-Edge"); | |
81 | if (irq->flags & IORESOURCE_IRQ_HIGHLEVEL) | |
82 | pnp_printf(buffer, " High-Level"); | |
83 | if (irq->flags & IORESOURCE_IRQ_LOWLEVEL) | |
84 | pnp_printf(buffer, " Low-Level"); | |
85 | pnp_printf(buffer, "\n"); | |
86 | } | |
87 | ||
88 | static void pnp_print_dma(pnp_info_buffer_t *buffer, char *space, struct pnp_dma *dma) | |
89 | { | |
90 | int first = 1, i; | |
91 | char *s; | |
92 | ||
93 | pnp_printf(buffer, "%sdma ", space); | |
94 | for (i = 0; i < 8; i++) | |
95 | if (dma->map & (1<<i)) { | |
96 | if (!first) { | |
97 | pnp_printf(buffer, ","); | |
98 | } else { | |
99 | first = 0; | |
100 | } | |
101 | pnp_printf(buffer, "%i", i); | |
102 | } | |
103 | if (!dma->map) | |
104 | pnp_printf(buffer, "<none>"); | |
105 | switch (dma->flags & IORESOURCE_DMA_TYPE_MASK) { | |
106 | case IORESOURCE_DMA_8BIT: | |
107 | s = "8-bit"; | |
108 | break; | |
109 | case IORESOURCE_DMA_8AND16BIT: | |
110 | s = "8-bit&16-bit"; | |
111 | break; | |
112 | default: | |
113 | s = "16-bit"; | |
114 | } | |
115 | pnp_printf(buffer, " %s", s); | |
116 | if (dma->flags & IORESOURCE_DMA_MASTER) | |
117 | pnp_printf(buffer, " master"); | |
118 | if (dma->flags & IORESOURCE_DMA_BYTE) | |
119 | pnp_printf(buffer, " byte-count"); | |
120 | if (dma->flags & IORESOURCE_DMA_WORD) | |
121 | pnp_printf(buffer, " word-count"); | |
122 | switch (dma->flags & IORESOURCE_DMA_SPEED_MASK) { | |
123 | case IORESOURCE_DMA_TYPEA: | |
124 | s = "type-A"; | |
125 | break; | |
126 | case IORESOURCE_DMA_TYPEB: | |
127 | s = "type-B"; | |
128 | break; | |
129 | case IORESOURCE_DMA_TYPEF: | |
130 | s = "type-F"; | |
131 | break; | |
132 | default: | |
133 | s = "compatible"; | |
134 | break; | |
135 | } | |
136 | pnp_printf(buffer, " %s\n", s); | |
137 | } | |
138 | ||
139 | static void pnp_print_mem(pnp_info_buffer_t *buffer, char *space, struct pnp_mem *mem) | |
140 | { | |
141 | char *s; | |
142 | ||
143 | pnp_printf(buffer, "%sMemory 0x%x-0x%x, align 0x%x, size 0x%x", | |
144 | space, mem->min, mem->max, mem->align, mem->size); | |
145 | if (mem->flags & IORESOURCE_MEM_WRITEABLE) | |
146 | pnp_printf(buffer, ", writeable"); | |
147 | if (mem->flags & IORESOURCE_MEM_CACHEABLE) | |
148 | pnp_printf(buffer, ", cacheable"); | |
149 | if (mem->flags & IORESOURCE_MEM_RANGELENGTH) | |
150 | pnp_printf(buffer, ", range-length"); | |
151 | if (mem->flags & IORESOURCE_MEM_SHADOWABLE) | |
152 | pnp_printf(buffer, ", shadowable"); | |
153 | if (mem->flags & IORESOURCE_MEM_EXPANSIONROM) | |
154 | pnp_printf(buffer, ", expansion ROM"); | |
155 | switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) { | |
156 | case IORESOURCE_MEM_8BIT: | |
157 | s = "8-bit"; | |
158 | break; | |
159 | case IORESOURCE_MEM_8AND16BIT: | |
160 | s = "8-bit&16-bit"; | |
161 | break; | |
162 | case IORESOURCE_MEM_32BIT: | |
163 | s = "32-bit"; | |
164 | break; | |
165 | default: | |
166 | s = "16-bit"; | |
167 | } | |
168 | pnp_printf(buffer, ", %s\n", s); | |
169 | } | |
170 | ||
171 | static void pnp_print_option(pnp_info_buffer_t *buffer, char *space, | |
172 | struct pnp_option *option, int dep) | |
173 | { | |
174 | char *s; | |
175 | struct pnp_port *port; | |
176 | struct pnp_irq *irq; | |
177 | struct pnp_dma *dma; | |
178 | struct pnp_mem *mem; | |
179 | ||
180 | if (dep) { | |
181 | switch (option->priority) { | |
182 | case PNP_RES_PRIORITY_PREFERRED: | |
183 | s = "preferred"; | |
184 | break; | |
185 | case PNP_RES_PRIORITY_ACCEPTABLE: | |
186 | s = "acceptable"; | |
187 | break; | |
188 | case PNP_RES_PRIORITY_FUNCTIONAL: | |
189 | s = "functional"; | |
190 | break; | |
191 | default: | |
192 | s = "invalid"; | |
193 | } | |
194 | pnp_printf(buffer, "Dependent: %02i - Priority %s\n",dep, s); | |
195 | } | |
196 | ||
197 | for (port = option->port; port; port = port->next) | |
198 | pnp_print_port(buffer, space, port); | |
199 | for (irq = option->irq; irq; irq = irq->next) | |
200 | pnp_print_irq(buffer, space, irq); | |
201 | for (dma = option->dma; dma; dma = dma->next) | |
202 | pnp_print_dma(buffer, space, dma); | |
203 | for (mem = option->mem; mem; mem = mem->next) | |
204 | pnp_print_mem(buffer, space, mem); | |
205 | } | |
206 | ||
207 | ||
208 | static ssize_t pnp_show_options(struct device *dmdev, char *buf) | |
209 | { | |
210 | struct pnp_dev *dev = to_pnp_dev(dmdev); | |
211 | struct pnp_option * independent = dev->independent; | |
212 | struct pnp_option * dependent = dev->dependent; | |
213 | int ret, dep = 1; | |
214 | ||
215 | pnp_info_buffer_t *buffer = (pnp_info_buffer_t *) | |
216 | pnp_alloc(sizeof(pnp_info_buffer_t)); | |
217 | if (!buffer) | |
218 | return -ENOMEM; | |
219 | ||
220 | buffer->len = PAGE_SIZE; | |
221 | buffer->buffer = buf; | |
222 | buffer->curr = buffer->buffer; | |
223 | if (independent) | |
224 | pnp_print_option(buffer, "", independent, 0); | |
225 | ||
226 | while (dependent){ | |
227 | pnp_print_option(buffer, " ", dependent, dep); | |
228 | dependent = dependent->next; | |
229 | dep++; | |
230 | } | |
231 | ret = (buffer->curr - buf); | |
232 | kfree(buffer); | |
233 | return ret; | |
234 | } | |
235 | ||
236 | static DEVICE_ATTR(options,S_IRUGO,pnp_show_options,NULL); | |
237 | ||
238 | ||
239 | static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf) | |
240 | { | |
241 | struct pnp_dev *dev = to_pnp_dev(dmdev); | |
242 | int i, ret; | |
243 | pnp_info_buffer_t *buffer; | |
244 | ||
245 | if (!dev) | |
246 | return -EINVAL; | |
247 | ||
248 | buffer = (pnp_info_buffer_t *) pnp_alloc(sizeof(pnp_info_buffer_t)); | |
249 | if (!buffer) | |
250 | return -ENOMEM; | |
251 | buffer->len = PAGE_SIZE; | |
252 | buffer->buffer = buf; | |
253 | buffer->curr = buffer->buffer; | |
254 | ||
255 | pnp_printf(buffer,"state = "); | |
256 | if (dev->active) | |
257 | pnp_printf(buffer,"active\n"); | |
258 | else | |
259 | pnp_printf(buffer,"disabled\n"); | |
260 | ||
261 | for (i = 0; i < PNP_MAX_PORT; i++) { | |
262 | if (pnp_port_valid(dev, i)) { | |
263 | pnp_printf(buffer,"io"); | |
264 | if (pnp_port_flags(dev, i) & IORESOURCE_DISABLED) | |
265 | pnp_printf(buffer," disabled\n"); | |
266 | else | |
267 | pnp_printf(buffer," 0x%lx-0x%lx\n", | |
268 | pnp_port_start(dev, i), | |
269 | pnp_port_end(dev, i)); | |
270 | } | |
271 | } | |
272 | for (i = 0; i < PNP_MAX_MEM; i++) { | |
273 | if (pnp_mem_valid(dev, i)) { | |
274 | pnp_printf(buffer,"mem"); | |
275 | if (pnp_mem_flags(dev, i) & IORESOURCE_DISABLED) | |
276 | pnp_printf(buffer," disabled\n"); | |
277 | else | |
278 | pnp_printf(buffer," 0x%lx-0x%lx\n", | |
279 | pnp_mem_start(dev, i), | |
280 | pnp_mem_end(dev, i)); | |
281 | } | |
282 | } | |
283 | for (i = 0; i < PNP_MAX_IRQ; i++) { | |
284 | if (pnp_irq_valid(dev, i)) { | |
285 | pnp_printf(buffer,"irq"); | |
286 | if (pnp_irq_flags(dev, i) & IORESOURCE_DISABLED) | |
287 | pnp_printf(buffer," disabled\n"); | |
288 | else | |
289 | pnp_printf(buffer," %ld\n", | |
290 | pnp_irq(dev, i)); | |
291 | } | |
292 | } | |
293 | for (i = 0; i < PNP_MAX_DMA; i++) { | |
294 | if (pnp_dma_valid(dev, i)) { | |
295 | pnp_printf(buffer,"dma"); | |
296 | if (pnp_dma_flags(dev, i) & IORESOURCE_DISABLED) | |
297 | pnp_printf(buffer," disabled\n"); | |
298 | else | |
299 | pnp_printf(buffer," %ld\n", | |
300 | pnp_dma(dev, i)); | |
301 | } | |
302 | } | |
303 | ret = (buffer->curr - buf); | |
304 | kfree(buffer); | |
305 | return ret; | |
306 | } | |
307 | ||
308 | extern struct semaphore pnp_res_mutex; | |
309 | ||
310 | static ssize_t | |
311 | pnp_set_current_resources(struct device * dmdev, const char * ubuf, size_t count) | |
312 | { | |
313 | struct pnp_dev *dev = to_pnp_dev(dmdev); | |
314 | char *buf = (void *)ubuf; | |
315 | int retval = 0; | |
316 | ||
317 | if (dev->status & PNP_ATTACHED) { | |
318 | retval = -EBUSY; | |
319 | pnp_info("Device %s cannot be configured because it is in use.", dev->dev.bus_id); | |
320 | goto done; | |
321 | } | |
322 | ||
323 | while (isspace(*buf)) | |
324 | ++buf; | |
325 | if (!strnicmp(buf,"disable",7)) { | |
326 | retval = pnp_disable_dev(dev); | |
327 | goto done; | |
328 | } | |
329 | if (!strnicmp(buf,"activate",8)) { | |
330 | retval = pnp_activate_dev(dev); | |
331 | goto done; | |
332 | } | |
333 | if (!strnicmp(buf,"fill",4)) { | |
334 | if (dev->active) | |
335 | goto done; | |
336 | retval = pnp_auto_config_dev(dev); | |
337 | goto done; | |
338 | } | |
339 | if (!strnicmp(buf,"auto",4)) { | |
340 | if (dev->active) | |
341 | goto done; | |
342 | pnp_init_resource_table(&dev->res); | |
343 | retval = pnp_auto_config_dev(dev); | |
344 | goto done; | |
345 | } | |
346 | if (!strnicmp(buf,"clear",5)) { | |
347 | if (dev->active) | |
348 | goto done; | |
349 | pnp_init_resource_table(&dev->res); | |
350 | goto done; | |
351 | } | |
352 | if (!strnicmp(buf,"get",3)) { | |
353 | down(&pnp_res_mutex); | |
354 | if (pnp_can_read(dev)) | |
355 | dev->protocol->get(dev, &dev->res); | |
356 | up(&pnp_res_mutex); | |
357 | goto done; | |
358 | } | |
359 | if (!strnicmp(buf,"set",3)) { | |
360 | int nport = 0, nmem = 0, nirq = 0, ndma = 0; | |
361 | if (dev->active) | |
362 | goto done; | |
363 | buf += 3; | |
364 | pnp_init_resource_table(&dev->res); | |
365 | down(&pnp_res_mutex); | |
366 | while (1) { | |
367 | while (isspace(*buf)) | |
368 | ++buf; | |
369 | if (!strnicmp(buf,"io",2)) { | |
370 | buf += 2; | |
371 | while (isspace(*buf)) | |
372 | ++buf; | |
373 | dev->res.port_resource[nport].start = simple_strtoul(buf,&buf,0); | |
374 | while (isspace(*buf)) | |
375 | ++buf; | |
376 | if(*buf == '-') { | |
377 | buf += 1; | |
378 | while (isspace(*buf)) | |
379 | ++buf; | |
380 | dev->res.port_resource[nport].end = simple_strtoul(buf,&buf,0); | |
381 | } else | |
382 | dev->res.port_resource[nport].end = dev->res.port_resource[nport].start; | |
383 | dev->res.port_resource[nport].flags = IORESOURCE_IO; | |
384 | nport++; | |
385 | if (nport >= PNP_MAX_PORT) | |
386 | break; | |
387 | continue; | |
388 | } | |
389 | if (!strnicmp(buf,"mem",3)) { | |
390 | buf += 3; | |
391 | while (isspace(*buf)) | |
392 | ++buf; | |
393 | dev->res.mem_resource[nmem].start = simple_strtoul(buf,&buf,0); | |
394 | while (isspace(*buf)) | |
395 | ++buf; | |
396 | if(*buf == '-') { | |
397 | buf += 1; | |
398 | while (isspace(*buf)) | |
399 | ++buf; | |
400 | dev->res.mem_resource[nmem].end = simple_strtoul(buf,&buf,0); | |
401 | } else | |
402 | dev->res.mem_resource[nmem].end = dev->res.mem_resource[nmem].start; | |
403 | dev->res.mem_resource[nmem].flags = IORESOURCE_MEM; | |
404 | nmem++; | |
405 | if (nmem >= PNP_MAX_MEM) | |
406 | break; | |
407 | continue; | |
408 | } | |
409 | if (!strnicmp(buf,"irq",3)) { | |
410 | buf += 3; | |
411 | while (isspace(*buf)) | |
412 | ++buf; | |
413 | dev->res.irq_resource[nirq].start = | |
414 | dev->res.irq_resource[nirq].end = simple_strtoul(buf,&buf,0); | |
415 | dev->res.irq_resource[nirq].flags = IORESOURCE_IRQ; | |
416 | nirq++; | |
417 | if (nirq >= PNP_MAX_IRQ) | |
418 | break; | |
419 | continue; | |
420 | } | |
421 | if (!strnicmp(buf,"dma",3)) { | |
422 | buf += 3; | |
423 | while (isspace(*buf)) | |
424 | ++buf; | |
425 | dev->res.dma_resource[ndma].start = | |
426 | dev->res.dma_resource[ndma].end = simple_strtoul(buf,&buf,0); | |
427 | dev->res.dma_resource[ndma].flags = IORESOURCE_DMA; | |
428 | ndma++; | |
429 | if (ndma >= PNP_MAX_DMA) | |
430 | break; | |
431 | continue; | |
432 | } | |
433 | break; | |
434 | } | |
435 | up(&pnp_res_mutex); | |
436 | goto done; | |
437 | } | |
438 | done: | |
439 | if (retval < 0) | |
440 | return retval; | |
441 | return count; | |
442 | } | |
443 | ||
444 | static DEVICE_ATTR(resources,S_IRUGO | S_IWUSR, | |
445 | pnp_show_current_resources,pnp_set_current_resources); | |
446 | ||
447 | static ssize_t pnp_show_current_ids(struct device *dmdev, char *buf) | |
448 | { | |
449 | char *str = buf; | |
450 | struct pnp_dev *dev = to_pnp_dev(dmdev); | |
451 | struct pnp_id * pos = dev->id; | |
452 | ||
453 | while (pos) { | |
454 | str += sprintf(str,"%s\n", pos->id); | |
455 | pos = pos->next; | |
456 | } | |
457 | return (str - buf); | |
458 | } | |
459 | ||
460 | static DEVICE_ATTR(id,S_IRUGO,pnp_show_current_ids,NULL); | |
461 | ||
462 | int pnp_interface_attach_device(struct pnp_dev *dev) | |
463 | { | |
464 | device_create_file(&dev->dev,&dev_attr_options); | |
465 | device_create_file(&dev->dev,&dev_attr_resources); | |
466 | device_create_file(&dev->dev,&dev_attr_id); | |
467 | return 0; | |
468 | } |