Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Yani Ioannou | e404e27 | 2005-05-17 06:42:58 -0400 | [diff] [blame^] | 208 | static ssize_t pnp_show_options(struct device *dmdev, struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Yani Ioannou | e404e27 | 2005-05-17 06:42:58 -0400 | [diff] [blame^] | 239 | static ssize_t pnp_show_current_resources(struct device *dmdev, struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Yani Ioannou | e404e27 | 2005-05-17 06:42:58 -0400 | [diff] [blame^] | 311 | pnp_set_current_resources(struct device * dmdev, struct device_attribute *attr, const char * ubuf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Yani Ioannou | e404e27 | 2005-05-17 06:42:58 -0400 | [diff] [blame^] | 447 | static ssize_t pnp_show_current_ids(struct device *dmdev, struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | } |