William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Speakup kobject implementation |
| 3 | * |
| 4 | * Copyright (C) 2009 William Hubbs |
| 5 | * |
| 6 | * This code is based on kobject-example.c, which came with linux 2.6.x. |
| 7 | * |
| 8 | * Copyright (C) 2004-2007 Greg Kroah-Hartman <greg@kroah.com> |
| 9 | * Copyright (C) 2007 Novell Inc. |
| 10 | * |
| 11 | * Released under the GPL version 2 only. |
| 12 | * |
| 13 | */ |
| 14 | #include <linux/slab.h> /* For kmalloc. */ |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/kobject.h> |
| 17 | #include <linux/string.h> |
| 18 | #include <linux/sysfs.h> |
| 19 | #include <linux/ctype.h> |
| 20 | |
| 21 | #include "speakup.h" |
| 22 | #include "spk_priv.h" |
| 23 | |
| 24 | /* |
| 25 | * This is called when a user reads the characters or chartab sys file. |
| 26 | */ |
| 27 | static ssize_t chars_chartab_show(struct kobject *kobj, |
| 28 | struct kobj_attribute *attr, char *buf) |
| 29 | { |
| 30 | int i; |
| 31 | int len = 0; |
| 32 | char *cp; |
| 33 | char *buf_pointer = buf; |
| 34 | size_t bufsize = PAGE_SIZE; |
| 35 | unsigned long flags; |
| 36 | |
| 37 | spk_lock(flags); |
| 38 | *buf_pointer = '\0'; |
| 39 | for (i = 0; i < 256; i++) { |
| 40 | if (bufsize <= 1) |
| 41 | break; |
| 42 | if (strcmp("characters", attr->attr.name) == 0) { |
| 43 | len = scnprintf(buf_pointer, bufsize, "%d\t%s\n", |
| 44 | i, characters[i]); |
| 45 | } else { /* show chartab entry */ |
| 46 | if (IS_TYPE(i, B_CTL)) |
| 47 | cp = "B_CTL"; |
| 48 | else if (IS_TYPE(i, WDLM)) |
| 49 | cp = "WDLM"; |
| 50 | else if (IS_TYPE(i, A_PUNC)) |
| 51 | cp = "A_PUNC"; |
| 52 | else if (IS_TYPE(i, PUNC)) |
| 53 | cp = "PUNC"; |
| 54 | else if (IS_TYPE(i, NUM)) |
| 55 | cp = "NUM"; |
| 56 | else if (IS_TYPE(i, A_CAP)) |
| 57 | cp = "A_CAP"; |
| 58 | else if (IS_TYPE(i, ALPHA)) |
| 59 | cp = "ALPHA"; |
| 60 | else if (IS_TYPE(i, B_CAPSYM)) |
| 61 | cp = "B_CAPSYM"; |
| 62 | else if (IS_TYPE(i, B_SYM)) |
| 63 | cp = "B_SYM"; |
| 64 | else |
| 65 | cp = "0"; |
| 66 | len = |
| 67 | scnprintf(buf_pointer, bufsize, "%d\t%s\n", i, cp); |
| 68 | } |
| 69 | bufsize -= len; |
| 70 | buf_pointer += len; |
| 71 | } |
| 72 | spk_unlock(flags); |
| 73 | return buf_pointer - buf; |
| 74 | } |
| 75 | |
| 76 | /* |
| 77 | * Print informational messages or warnings after updating |
| 78 | * character descriptions or chartab entries. |
| 79 | */ |
| 80 | static void report_char_chartab_status(int reset, int received, int used, |
| 81 | int rejected, int do_characters) |
| 82 | { |
| 83 | char *object_type[] = { |
| 84 | "character class entries", |
| 85 | "character descriptions", |
| 86 | }; |
| 87 | int len; |
| 88 | char buf[80]; |
| 89 | |
| 90 | if (reset) { |
| 91 | pr_info("%s reset to defaults\n", object_type[do_characters]); |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 92 | } else if (received) { |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 93 | len = snprintf(buf, sizeof(buf), |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 94 | " updated %d of %d %s\n", |
| 95 | used, received, object_type[do_characters]); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 96 | if (rejected) |
| 97 | snprintf(buf + (len - 1), sizeof(buf) - (len - 1), |
| 98 | " with %d reject%s\n", |
| 99 | rejected, rejected > 1 ? "s" : ""); |
| 100 | printk(buf); |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | /* |
| 105 | * This is called when a user changes the characters or chartab parameters. |
| 106 | */ |
| 107 | static ssize_t chars_chartab_store(struct kobject *kobj, |
| 108 | struct kobj_attribute *attr, const char *buf, size_t count) |
| 109 | { |
| 110 | char *cp = (char *) buf; |
| 111 | char *end = cp + count; /* the null at the end of the buffer */ |
| 112 | char *linefeed = NULL; |
| 113 | char keyword[MAX_DESC_LEN + 1]; |
| 114 | char *outptr = NULL; /* Will hold keyword or desc. */ |
| 115 | char *temp = NULL; |
| 116 | char *desc = NULL; |
| 117 | ssize_t retval = count; |
| 118 | unsigned long flags; |
| 119 | unsigned long index = 0; |
| 120 | int charclass = 0; |
| 121 | int received = 0; |
| 122 | int used = 0; |
| 123 | int rejected = 0; |
| 124 | int reset = 0; |
| 125 | int do_characters = !strcmp(attr->attr.name, "characters"); |
| 126 | size_t desc_length = 0; |
| 127 | int i; |
| 128 | |
| 129 | spk_lock(flags); |
| 130 | while (cp < end) { |
| 131 | |
| 132 | while ((cp < end) && (*cp == ' ' || *cp == '\t')) |
| 133 | cp++; |
| 134 | |
| 135 | if (cp == end) |
| 136 | break; |
| 137 | if ((*cp == '\n') || strchr("dDrR", *cp)) { |
| 138 | reset = 1; |
| 139 | break; |
| 140 | } |
| 141 | received++; |
| 142 | |
| 143 | linefeed = strchr(cp, '\n'); |
| 144 | if (!linefeed) { |
| 145 | rejected++; |
| 146 | break; |
| 147 | } |
| 148 | |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 149 | if (!isdigit(*cp)) { |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 150 | rejected++; |
| 151 | cp = linefeed + 1; |
| 152 | continue; |
| 153 | } |
| 154 | |
| 155 | index = simple_strtoul(cp, &temp, 10); |
| 156 | if (index > 255) { |
| 157 | rejected++; |
| 158 | cp = linefeed + 1; |
| 159 | continue; |
| 160 | } |
| 161 | |
| 162 | while ((temp < linefeed) && (*temp == ' ' || *temp == '\t')) |
| 163 | temp++; |
| 164 | |
| 165 | desc_length = linefeed - temp; |
| 166 | if (desc_length > MAX_DESC_LEN) { |
| 167 | rejected++; |
| 168 | cp = linefeed + 1; |
| 169 | continue; |
| 170 | } |
| 171 | if (do_characters) { |
| 172 | desc = kmalloc(desc_length + 1, GFP_ATOMIC); |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 173 | if (!desc) { |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 174 | retval = -ENOMEM; |
| 175 | reset = 1; /* just reset on error. */ |
| 176 | break; |
| 177 | } |
| 178 | outptr = desc; |
| 179 | } else { |
| 180 | outptr = keyword; |
| 181 | } |
| 182 | |
| 183 | for (i = 0; i < desc_length; i++) |
| 184 | outptr[i] = temp[i]; |
| 185 | outptr[desc_length] = '\0'; |
| 186 | |
| 187 | if (do_characters) { |
| 188 | if (characters[index] != default_chars[index]) |
| 189 | kfree(characters[index]); |
| 190 | characters[index] = desc; |
| 191 | used++; |
| 192 | } else { |
| 193 | charclass = chartab_get_value(keyword); |
| 194 | if (charclass == 0) { |
| 195 | rejected++; |
| 196 | cp = linefeed + 1; |
| 197 | continue; |
| 198 | } |
| 199 | if (charclass != spk_chartab[index]) { |
| 200 | spk_chartab[index] = charclass; |
| 201 | used++; |
| 202 | } |
| 203 | } |
| 204 | cp = linefeed + 1; |
| 205 | } |
| 206 | |
| 207 | if (reset) { |
| 208 | if (do_characters) |
| 209 | reset_default_chars(); |
| 210 | else |
| 211 | reset_default_chartab(); |
| 212 | } |
| 213 | |
| 214 | spk_unlock(flags); |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 215 | report_char_chartab_status(reset, received, used, rejected, |
| 216 | do_characters); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 217 | return retval; |
| 218 | } |
| 219 | |
| 220 | /* |
| 221 | * This is called when a user reads the keymap parameter. |
| 222 | */ |
| 223 | static ssize_t keymap_show(struct kobject *kobj, struct kobj_attribute *attr, |
| 224 | char *buf) |
| 225 | { |
| 226 | char *cp = buf; |
| 227 | int i; |
| 228 | int n; |
| 229 | int num_keys; |
| 230 | int nstates; |
| 231 | u_char *cp1; |
| 232 | u_char ch; |
| 233 | unsigned long flags; |
| 234 | spk_lock(flags); |
| 235 | cp1 = key_buf + SHIFT_TBL_SIZE; |
| 236 | num_keys = (int)(*cp1); |
| 237 | nstates = (int)cp1[1]; |
| 238 | cp += sprintf(cp, "%d, %d, %d,\n", KEY_MAP_VER, num_keys, nstates); |
| 239 | cp1 += 2; /* now pointing at shift states */ |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 240 | /* dump num_keys+1 as first row is shift states + flags, |
| 241 | * each subsequent row is key + states */ |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 242 | for (n = 0; n <= num_keys; n++) { |
| 243 | for (i = 0; i <= nstates; i++) { |
| 244 | ch = *cp1++; |
| 245 | cp += sprintf(cp, "%d,", (int)ch); |
| 246 | *cp++ = (i < nstates) ? SPACE : '\n'; |
| 247 | } |
| 248 | } |
| 249 | cp += sprintf(cp, "0, %d\n", KEY_MAP_VER); |
| 250 | spk_unlock(flags); |
| 251 | return (int)(cp-buf); |
| 252 | } |
| 253 | |
| 254 | /* |
| 255 | * This is called when a user changes the keymap parameter. |
| 256 | */ |
| 257 | static ssize_t keymap_store(struct kobject *kobj, struct kobj_attribute *attr, |
| 258 | const char *buf, size_t count) |
| 259 | { |
| 260 | int i; |
| 261 | ssize_t ret = count; |
| 262 | char *in_buff = NULL; |
| 263 | char *cp; |
| 264 | u_char *cp1; |
| 265 | unsigned long flags; |
| 266 | |
| 267 | spk_lock(flags); |
Thomas Meyer | 1aa5eb6 | 2011-11-12 13:11:18 +0100 | [diff] [blame] | 268 | in_buff = kmemdup(buf, count + 1, GFP_ATOMIC); |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 269 | if (!in_buff) { |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 270 | spk_unlock(flags); |
| 271 | return -ENOMEM; |
| 272 | } |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 273 | if (strchr("dDrR", *in_buff)) { |
| 274 | set_key_info(key_defaults, key_buf); |
| 275 | pr_info("keymap set to default values\n"); |
| 276 | kfree(in_buff); |
| 277 | spk_unlock(flags); |
| 278 | return count; |
| 279 | } |
| 280 | if (in_buff[count - 1] == '\n') |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 281 | in_buff[count - 1] = '\0'; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 282 | cp = in_buff; |
| 283 | cp1 = (u_char *)in_buff; |
| 284 | for (i = 0; i < 3; i++) { |
| 285 | cp = s2uchar(cp, cp1); |
| 286 | cp1++; |
| 287 | } |
| 288 | i = (int)cp1[-2]+1; |
| 289 | i *= (int)cp1[-1]+1; |
| 290 | i += 2; /* 0 and last map ver */ |
| 291 | if (cp1[-3] != KEY_MAP_VER || cp1[-1] > 10 || |
| 292 | i+SHIFT_TBL_SIZE+4 >= sizeof(key_buf)) { |
| 293 | pr_warn("i %d %d %d %d\n", i, |
| 294 | (int)cp1[-3], (int)cp1[-2], (int)cp1[-1]); |
| 295 | kfree(in_buff); |
| 296 | spk_unlock(flags); |
| 297 | return -EINVAL; |
| 298 | } |
| 299 | while (--i >= 0) { |
| 300 | cp = s2uchar(cp, cp1); |
| 301 | cp1++; |
| 302 | if (!(*cp)) |
| 303 | break; |
| 304 | } |
| 305 | if (i != 0 || cp1[-1] != KEY_MAP_VER || cp1[-2] != 0) { |
| 306 | ret = -EINVAL; |
| 307 | pr_warn("end %d %d %d %d\n", i, |
| 308 | (int)cp1[-3], (int)cp1[-2], (int)cp1[-1]); |
| 309 | } else { |
| 310 | if (set_key_info(in_buff, key_buf)) { |
| 311 | set_key_info(key_defaults, key_buf); |
| 312 | ret = -EINVAL; |
| 313 | pr_warn("set key failed\n"); |
| 314 | } |
| 315 | } |
| 316 | kfree(in_buff); |
| 317 | spk_unlock(flags); |
| 318 | return ret; |
| 319 | } |
| 320 | |
| 321 | /* |
| 322 | * This is called when a user changes the value of the silent parameter. |
| 323 | */ |
| 324 | static ssize_t silent_store(struct kobject *kobj, struct kobj_attribute *attr, |
| 325 | const char *buf, size_t count) |
| 326 | { |
| 327 | int len; |
| 328 | struct vc_data *vc = vc_cons[fg_console].d; |
| 329 | char ch = 0; |
| 330 | char shut; |
| 331 | unsigned long flags; |
| 332 | |
| 333 | len = strlen(buf); |
roel kluin | e7bf352 | 2011-01-03 11:59:48 -0800 | [diff] [blame] | 334 | if (len > 0 && len < 3) { |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 335 | ch = buf[0]; |
| 336 | if (ch == '\n') |
| 337 | ch = '0'; |
| 338 | } |
| 339 | if (ch < '0' || ch > '7') { |
| 340 | pr_warn("silent value '%c' not in range (0,7)\n", ch); |
| 341 | return -EINVAL; |
| 342 | } |
| 343 | spk_lock(flags); |
| 344 | if (ch&2) { |
| 345 | shut = 1; |
| 346 | do_flush(); |
| 347 | } else { |
| 348 | shut = 0; |
| 349 | } |
| 350 | if (ch&4) |
| 351 | shut |= 0x40; |
| 352 | if (ch&1) |
| 353 | spk_shut_up |= shut; |
| 354 | else |
| 355 | spk_shut_up &= ~shut; |
| 356 | spk_unlock(flags); |
| 357 | return count; |
| 358 | } |
| 359 | |
| 360 | /* |
| 361 | * This is called when a user reads the synth setting. |
| 362 | */ |
| 363 | static ssize_t synth_show(struct kobject *kobj, struct kobj_attribute *attr, |
| 364 | char *buf) |
| 365 | { |
| 366 | int rv; |
| 367 | |
| 368 | if (synth == NULL) |
| 369 | rv = sprintf(buf, "%s\n", "none"); |
| 370 | else |
| 371 | rv = sprintf(buf, "%s\n", synth->name); |
| 372 | return rv; |
| 373 | } |
| 374 | |
| 375 | /* |
| 376 | * This is called when a user requests to change synthesizers. |
| 377 | */ |
| 378 | static ssize_t synth_store(struct kobject *kobj, struct kobj_attribute *attr, |
| 379 | const char *buf, size_t count) |
| 380 | { |
| 381 | int len; |
| 382 | char new_synth_name[10]; |
| 383 | |
| 384 | len = strlen(buf); |
| 385 | if (len < 2 || len > 9) |
| 386 | return -EINVAL; |
| 387 | strncpy(new_synth_name, buf, len); |
| 388 | if (new_synth_name[len - 1] == '\n') |
| 389 | len--; |
| 390 | new_synth_name[len] = '\0'; |
| 391 | strlwr(new_synth_name); |
| 392 | if ((synth != NULL) && (!strcmp(new_synth_name, synth->name))) { |
| 393 | pr_warn("%s already in use\n", new_synth_name); |
| 394 | } else if (synth_init(new_synth_name) != 0) { |
| 395 | pr_warn("failed to init synth %s\n", new_synth_name); |
| 396 | return -ENODEV; |
| 397 | } |
| 398 | return count; |
| 399 | } |
| 400 | |
| 401 | /* |
| 402 | * This is called when text is sent to the synth via the synth_direct file. |
| 403 | */ |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 404 | static ssize_t synth_direct_store(struct kobject *kobj, |
| 405 | struct kobj_attribute *attr, const char *buf, size_t count) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 406 | { |
| 407 | u_char tmp[256]; |
| 408 | int len; |
| 409 | int bytes; |
| 410 | const char *ptr = buf; |
| 411 | |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 412 | if (!synth) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 413 | return -EPERM; |
| 414 | |
| 415 | len = strlen(buf); |
| 416 | while (len > 0) { |
| 417 | bytes = min_t(size_t, len, 250); |
| 418 | strncpy(tmp, ptr, bytes); |
| 419 | tmp[bytes] = '\0'; |
| 420 | xlate(tmp); |
| 421 | synth_printf("%s", tmp); |
| 422 | ptr += bytes; |
| 423 | len -= bytes; |
| 424 | } |
| 425 | return count; |
| 426 | } |
| 427 | |
| 428 | /* |
| 429 | * This function is called when a user reads the version. |
| 430 | */ |
| 431 | static ssize_t version_show(struct kobject *kobj, struct kobj_attribute *attr, |
| 432 | char *buf) |
| 433 | { |
| 434 | char *cp; |
| 435 | |
| 436 | cp = buf; |
| 437 | cp += sprintf(cp, "Speakup version %s\n", SPEAKUP_VERSION); |
| 438 | if (synth) |
| 439 | cp += sprintf(cp, "%s synthesizer driver version %s\n", |
| 440 | synth->name, synth->version); |
| 441 | return cp - buf; |
| 442 | } |
| 443 | |
| 444 | /* |
| 445 | * This is called when a user reads the punctuation settings. |
| 446 | */ |
| 447 | static ssize_t punc_show(struct kobject *kobj, struct kobj_attribute *attr, |
| 448 | char *buf) |
| 449 | { |
| 450 | int i; |
| 451 | char *cp = buf; |
| 452 | struct st_var_header *p_header; |
| 453 | struct punc_var_t *var; |
| 454 | struct st_bits_data *pb; |
| 455 | short mask; |
| 456 | unsigned long flags; |
| 457 | |
| 458 | p_header = var_header_by_name(attr->attr.name); |
| 459 | if (p_header == NULL) { |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 460 | pr_warn("p_header is null, attr->attr.name is %s\n", |
| 461 | attr->attr.name); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 462 | return -EINVAL; |
| 463 | } |
| 464 | |
| 465 | var = get_punc_var(p_header->var_id); |
| 466 | if (var == NULL) { |
| 467 | pr_warn("var is null, p_header->var_id is %i\n", |
| 468 | p_header->var_id); |
| 469 | return -EINVAL; |
| 470 | } |
| 471 | |
| 472 | spk_lock(flags); |
| 473 | pb = (struct st_bits_data *) &punc_info[var->value]; |
| 474 | mask = pb->mask; |
| 475 | for (i = 33; i < 128; i++) { |
| 476 | if (!(spk_chartab[i]&mask)) |
| 477 | continue; |
| 478 | *cp++ = (char)i; |
| 479 | } |
| 480 | spk_unlock(flags); |
| 481 | return cp-buf; |
| 482 | } |
| 483 | |
| 484 | /* |
| 485 | * This is called when a user changes the punctuation settings. |
| 486 | */ |
| 487 | static ssize_t punc_store(struct kobject *kobj, struct kobj_attribute *attr, |
| 488 | const char *buf, size_t count) |
| 489 | { |
| 490 | int x; |
| 491 | struct st_var_header *p_header; |
| 492 | struct punc_var_t *var; |
| 493 | char punc_buf[100]; |
| 494 | unsigned long flags; |
| 495 | |
| 496 | x = strlen(buf); |
| 497 | if (x < 1 || x > 99) |
| 498 | return -EINVAL; |
| 499 | |
| 500 | p_header = var_header_by_name(attr->attr.name); |
| 501 | if (p_header == NULL) { |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 502 | pr_warn("p_header is null, attr->attr.name is %s\n", |
| 503 | attr->attr.name); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 504 | return -EINVAL; |
| 505 | } |
| 506 | |
| 507 | var = get_punc_var(p_header->var_id); |
| 508 | if (var == NULL) { |
| 509 | pr_warn("var is null, p_header->var_id is %i\n", |
| 510 | p_header->var_id); |
| 511 | return -EINVAL; |
| 512 | } |
| 513 | |
| 514 | strncpy(punc_buf, buf, x); |
| 515 | |
| 516 | while (x && punc_buf[x - 1] == '\n') |
| 517 | x--; |
| 518 | punc_buf[x] = '\0'; |
| 519 | |
| 520 | spk_lock(flags); |
| 521 | |
| 522 | if (*punc_buf == 'd' || *punc_buf == 'r') |
| 523 | x = set_mask_bits(0, var->value, 3); |
| 524 | else |
| 525 | x = set_mask_bits(punc_buf, var->value, 3); |
| 526 | |
| 527 | spk_unlock(flags); |
| 528 | return count; |
| 529 | } |
| 530 | |
| 531 | /* |
| 532 | * This function is called when a user reads one of the variable parameters. |
| 533 | */ |
| 534 | ssize_t spk_var_show(struct kobject *kobj, struct kobj_attribute *attr, |
| 535 | char *buf) |
| 536 | { |
| 537 | int rv = 0; |
| 538 | struct st_var_header *param; |
| 539 | struct var_t *var; |
| 540 | char *cp1; |
| 541 | char *cp; |
| 542 | char ch; |
| 543 | unsigned long flags; |
| 544 | |
| 545 | param = var_header_by_name(attr->attr.name); |
| 546 | if (param == NULL) |
| 547 | return -EINVAL; |
| 548 | |
| 549 | spk_lock(flags); |
| 550 | var = (struct var_t *) param->data; |
| 551 | switch (param->var_type) { |
| 552 | case VAR_NUM: |
| 553 | case VAR_TIME: |
| 554 | if (var) |
| 555 | rv = sprintf(buf, "%i\n", var->u.n.value); |
| 556 | else |
| 557 | rv = sprintf(buf, "0\n"); |
| 558 | break; |
| 559 | case VAR_STRING: |
| 560 | if (var) { |
| 561 | cp1 = buf; |
| 562 | *cp1++ = '"'; |
| 563 | for (cp = (char *)param->p_val; (ch = *cp); cp++) { |
| 564 | if (ch >= ' ' && ch < '~') |
| 565 | *cp1++ = ch; |
| 566 | else |
| 567 | cp1 += sprintf(cp1, "\\""x%02x", ch); |
| 568 | } |
| 569 | *cp1++ = '"'; |
| 570 | *cp1++ = '\n'; |
| 571 | *cp1 = '\0'; |
| 572 | rv = cp1-buf; |
| 573 | } else { |
| 574 | rv = sprintf(buf, "\"\"\n"); |
| 575 | } |
| 576 | break; |
| 577 | default: |
| 578 | rv = sprintf(buf, "Bad parameter %s, type %i\n", |
| 579 | param->name, param->var_type); |
| 580 | break; |
| 581 | } |
| 582 | spk_unlock(flags); |
| 583 | return rv; |
| 584 | } |
| 585 | EXPORT_SYMBOL_GPL(spk_var_show); |
| 586 | |
| 587 | /* |
| 588 | * This function is called when a user echos a value to one of the |
| 589 | * variable parameters. |
| 590 | */ |
| 591 | ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr, |
| 592 | const char *buf, size_t count) |
| 593 | { |
| 594 | struct st_var_header *param; |
| 595 | int ret; |
| 596 | int len; |
| 597 | char *cp; |
| 598 | struct var_t *var_data; |
| 599 | int value; |
| 600 | unsigned long flags; |
| 601 | |
| 602 | param = var_header_by_name(attr->attr.name); |
| 603 | if (param == NULL) |
| 604 | return -EINVAL; |
| 605 | if (param->data == NULL) |
| 606 | return 0; |
| 607 | ret = 0; |
| 608 | cp = xlate((char *) buf); |
| 609 | |
| 610 | spk_lock(flags); |
| 611 | switch (param->var_type) { |
| 612 | case VAR_NUM: |
| 613 | case VAR_TIME: |
| 614 | if (*cp == 'd' || *cp == 'r' || *cp == '\0') |
| 615 | len = E_DEFAULT; |
| 616 | else if (*cp == '+' || *cp == '-') |
| 617 | len = E_INC; |
| 618 | else |
| 619 | len = E_SET; |
| 620 | speakup_s2i(cp, &value); |
| 621 | ret = set_num_var(value, param, len); |
| 622 | if (ret == E_RANGE) { |
| 623 | var_data = param->data; |
| 624 | pr_warn("value for %s out of range, expect %d to %d\n", |
| 625 | attr->attr.name, |
| 626 | var_data->u.n.low, var_data->u.n.high); |
| 627 | } |
| 628 | break; |
| 629 | case VAR_STRING: |
| 630 | len = strlen(buf); |
| 631 | if ((len >= 1) && (buf[len - 1] == '\n')) |
| 632 | --len; |
| 633 | if ((len >= 2) && (buf[0] == '"') && (buf[len - 1] == '"')) { |
| 634 | ++buf; |
| 635 | len -= 2; |
| 636 | } |
| 637 | cp = (char *) buf; |
| 638 | cp[len] = '\0'; |
| 639 | ret = set_string_var(buf, param, len); |
| 640 | if (ret == E_TOOLONG) |
| 641 | pr_warn("value too long for %s\n", |
| 642 | attr->attr.name); |
| 643 | break; |
| 644 | default: |
| 645 | pr_warn("%s unknown type %d\n", |
| 646 | param->name, (int)param->var_type); |
| 647 | break; |
| 648 | } |
| 649 | /* |
| 650 | * If voice was just changed, we might need to reset our default |
| 651 | * pitch and volume. |
| 652 | */ |
| 653 | if (strcmp(attr->attr.name, "voice") == 0) { |
| 654 | if (synth && synth->default_pitch) { |
| 655 | param = var_header_by_name("pitch"); |
| 656 | if (param) { |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 657 | set_num_var(synth->default_pitch[value], param, |
| 658 | E_NEW_DEFAULT); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 659 | set_num_var(0, param, E_DEFAULT); |
| 660 | } |
| 661 | } |
| 662 | if (synth && synth->default_vol) { |
| 663 | param = var_header_by_name("vol"); |
| 664 | if (param) { |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 665 | set_num_var(synth->default_vol[value], param, |
| 666 | E_NEW_DEFAULT); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 667 | set_num_var(0, param, E_DEFAULT); |
| 668 | } |
| 669 | } |
| 670 | } |
| 671 | spk_unlock(flags); |
| 672 | |
| 673 | if (ret == SET_DEFAULT) |
| 674 | pr_info("%s reset to default value\n", attr->attr.name); |
| 675 | return count; |
| 676 | } |
| 677 | EXPORT_SYMBOL_GPL(spk_var_store); |
| 678 | |
| 679 | /* |
| 680 | * Functions for reading and writing lists of i18n messages. Incomplete. |
| 681 | */ |
| 682 | |
| 683 | static ssize_t message_show_helper(char *buf, enum msg_index_t first, |
| 684 | enum msg_index_t last) |
| 685 | { |
| 686 | size_t bufsize = PAGE_SIZE; |
| 687 | char *buf_pointer = buf; |
| 688 | int printed; |
| 689 | enum msg_index_t cursor; |
| 690 | int index = 0; |
| 691 | *buf_pointer = '\0'; /* buf_pointer always looking at a NUL byte. */ |
| 692 | |
| 693 | for (cursor = first; cursor <= last; cursor++, index++) { |
| 694 | if (bufsize <= 1) |
| 695 | break; |
| 696 | printed = scnprintf(buf_pointer, bufsize, "%d\t%s\n", |
| 697 | index, msg_get(cursor)); |
| 698 | buf_pointer += printed; |
| 699 | bufsize -= printed; |
| 700 | } |
| 701 | |
| 702 | return buf_pointer - buf; |
| 703 | } |
| 704 | |
| 705 | static void report_msg_status(int reset, int received, int used, |
| 706 | int rejected, char *groupname) |
| 707 | { |
| 708 | int len; |
| 709 | char buf[160]; |
| 710 | |
| 711 | if (reset) { |
| 712 | pr_info("i18n messages from group %s reset to defaults\n", |
| 713 | groupname); |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 714 | } else if (received) { |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 715 | len = snprintf(buf, sizeof(buf), |
| 716 | " updated %d of %d i18n messages from group %s\n", |
| 717 | used, received, groupname); |
| 718 | if (rejected) |
| 719 | snprintf(buf + (len - 1), sizeof(buf) - (len - 1), |
| 720 | " with %d reject%s\n", |
| 721 | rejected, rejected > 1 ? "s" : ""); |
| 722 | printk(buf); |
| 723 | } |
| 724 | } |
| 725 | |
| 726 | static ssize_t message_store_helper(const char *buf, size_t count, |
| 727 | struct msg_group_t *group) |
| 728 | { |
| 729 | char *cp = (char *) buf; |
| 730 | char *end = cp + count; |
| 731 | char *linefeed = NULL; |
| 732 | char *temp = NULL; |
| 733 | ssize_t msg_stored = 0; |
| 734 | ssize_t retval = count; |
| 735 | size_t desc_length = 0; |
| 736 | unsigned long index = 0; |
| 737 | int received = 0; |
| 738 | int used = 0; |
| 739 | int rejected = 0; |
| 740 | int reset = 0; |
| 741 | enum msg_index_t firstmessage = group->start; |
| 742 | enum msg_index_t lastmessage = group->end; |
| 743 | enum msg_index_t curmessage; |
| 744 | |
| 745 | while (cp < end) { |
| 746 | |
| 747 | while ((cp < end) && (*cp == ' ' || *cp == '\t')) |
| 748 | cp++; |
| 749 | |
| 750 | if (cp == end) |
| 751 | break; |
| 752 | if (strchr("dDrR", *cp)) { |
| 753 | reset = 1; |
| 754 | break; |
| 755 | } |
| 756 | received++; |
| 757 | |
| 758 | linefeed = strchr(cp, '\n'); |
| 759 | if (!linefeed) { |
| 760 | rejected++; |
| 761 | break; |
| 762 | } |
| 763 | |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 764 | if (!isdigit(*cp)) { |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 765 | rejected++; |
| 766 | cp = linefeed + 1; |
| 767 | continue; |
| 768 | } |
| 769 | |
| 770 | index = simple_strtoul(cp, &temp, 10); |
| 771 | |
| 772 | while ((temp < linefeed) && (*temp == ' ' || *temp == '\t')) |
| 773 | temp++; |
| 774 | |
| 775 | desc_length = linefeed - temp; |
| 776 | curmessage = firstmessage + index; |
| 777 | |
| 778 | /* |
| 779 | * Note the check (curmessage < firstmessage). It is not |
| 780 | * redundant. Suppose that the user gave us an index |
| 781 | * equal to ULONG_MAX - 1. If firstmessage > 1, then |
| 782 | * firstmessage + index < firstmessage! |
| 783 | */ |
| 784 | |
| 785 | if ((curmessage < firstmessage) || (curmessage > lastmessage)) { |
| 786 | rejected++; |
| 787 | cp = linefeed + 1; |
| 788 | continue; |
| 789 | } |
| 790 | |
| 791 | msg_stored = msg_set(curmessage, temp, desc_length); |
| 792 | if (msg_stored < 0) { |
| 793 | retval = msg_stored; |
| 794 | if (msg_stored == -ENOMEM) |
| 795 | reset = 1; |
| 796 | break; |
| 797 | } else { |
| 798 | used++; |
| 799 | } |
| 800 | |
| 801 | cp = linefeed + 1; |
| 802 | } |
| 803 | |
| 804 | if (reset) |
| 805 | reset_msg_group(group); |
| 806 | |
| 807 | report_msg_status(reset, received, used, rejected, group->name); |
| 808 | return retval; |
| 809 | } |
| 810 | |
| 811 | static ssize_t message_show(struct kobject *kobj, |
| 812 | struct kobj_attribute *attr, char *buf) |
| 813 | { |
| 814 | ssize_t retval = 0; |
| 815 | struct msg_group_t *group = find_msg_group(attr->attr.name); |
| 816 | unsigned long flags; |
| 817 | |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 818 | BUG_ON(!group); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 819 | spk_lock(flags); |
| 820 | retval = message_show_helper(buf, group->start, group->end); |
| 821 | spk_unlock(flags); |
| 822 | return retval; |
| 823 | } |
| 824 | |
| 825 | static ssize_t message_store(struct kobject *kobj, struct kobj_attribute *attr, |
| 826 | const char *buf, size_t count) |
| 827 | { |
| 828 | ssize_t retval = 0; |
| 829 | struct msg_group_t *group = find_msg_group(attr->attr.name); |
| 830 | |
William Hubbs | f1c6b7f | 2010-10-12 11:39:30 -0500 | [diff] [blame] | 831 | BUG_ON(!group); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 832 | retval = message_store_helper(buf, count, group); |
| 833 | return retval; |
| 834 | } |
| 835 | |
| 836 | /* |
| 837 | * Declare the attributes. |
| 838 | */ |
| 839 | static struct kobj_attribute keymap_attribute = |
| 840 | __ATTR(keymap, ROOT_W, keymap_show, keymap_store); |
| 841 | static struct kobj_attribute silent_attribute = |
| 842 | __ATTR(silent, USER_W, NULL, silent_store); |
| 843 | static struct kobj_attribute synth_attribute = |
| 844 | __ATTR(synth, USER_RW, synth_show, synth_store); |
| 845 | static struct kobj_attribute synth_direct_attribute = |
| 846 | __ATTR(synth_direct, USER_W, NULL, synth_direct_store); |
| 847 | static struct kobj_attribute version_attribute = |
| 848 | __ATTR_RO(version); |
| 849 | |
| 850 | static struct kobj_attribute delimiters_attribute = |
| 851 | __ATTR(delimiters, USER_RW, punc_show, punc_store); |
| 852 | static struct kobj_attribute ex_num_attribute = |
| 853 | __ATTR(ex_num, USER_RW, punc_show, punc_store); |
| 854 | static struct kobj_attribute punc_all_attribute = |
| 855 | __ATTR(punc_all, USER_RW, punc_show, punc_store); |
| 856 | static struct kobj_attribute punc_most_attribute = |
| 857 | __ATTR(punc_most, USER_RW, punc_show, punc_store); |
| 858 | static struct kobj_attribute punc_some_attribute = |
| 859 | __ATTR(punc_some, USER_RW, punc_show, punc_store); |
| 860 | static struct kobj_attribute repeats_attribute = |
| 861 | __ATTR(repeats, USER_RW, punc_show, punc_store); |
| 862 | |
| 863 | static struct kobj_attribute attrib_bleep_attribute = |
| 864 | __ATTR(attrib_bleep, USER_RW, spk_var_show, spk_var_store); |
| 865 | static struct kobj_attribute bell_pos_attribute = |
| 866 | __ATTR(bell_pos, USER_RW, spk_var_show, spk_var_store); |
| 867 | static struct kobj_attribute bleep_time_attribute = |
| 868 | __ATTR(bleep_time, USER_RW, spk_var_show, spk_var_store); |
| 869 | static struct kobj_attribute bleeps_attribute = |
| 870 | __ATTR(bleeps, USER_RW, spk_var_show, spk_var_store); |
| 871 | static struct kobj_attribute cursor_time_attribute = |
| 872 | __ATTR(cursor_time, USER_RW, spk_var_show, spk_var_store); |
| 873 | static struct kobj_attribute key_echo_attribute = |
| 874 | __ATTR(key_echo, USER_RW, spk_var_show, spk_var_store); |
| 875 | static struct kobj_attribute no_interrupt_attribute = |
| 876 | __ATTR(no_interrupt, USER_RW, spk_var_show, spk_var_store); |
| 877 | static struct kobj_attribute punc_level_attribute = |
| 878 | __ATTR(punc_level, USER_RW, spk_var_show, spk_var_store); |
| 879 | static struct kobj_attribute reading_punc_attribute = |
| 880 | __ATTR(reading_punc, USER_RW, spk_var_show, spk_var_store); |
| 881 | static struct kobj_attribute say_control_attribute = |
| 882 | __ATTR(say_control, USER_RW, spk_var_show, spk_var_store); |
| 883 | static struct kobj_attribute say_word_ctl_attribute = |
| 884 | __ATTR(say_word_ctl, USER_RW, spk_var_show, spk_var_store); |
| 885 | static struct kobj_attribute spell_delay_attribute = |
| 886 | __ATTR(spell_delay, USER_RW, spk_var_show, spk_var_store); |
| 887 | |
| 888 | /* |
| 889 | * These attributes are i18n related. |
| 890 | */ |
| 891 | static struct kobj_attribute announcements_attribute = |
| 892 | __ATTR(announcements, USER_RW, message_show, message_store); |
| 893 | static struct kobj_attribute characters_attribute = |
| 894 | __ATTR(characters, USER_RW, chars_chartab_show, chars_chartab_store); |
| 895 | static struct kobj_attribute chartab_attribute = |
| 896 | __ATTR(chartab, USER_RW, chars_chartab_show, chars_chartab_store); |
| 897 | static struct kobj_attribute ctl_keys_attribute = |
| 898 | __ATTR(ctl_keys, USER_RW, message_show, message_store); |
| 899 | static struct kobj_attribute colors_attribute = |
| 900 | __ATTR(colors, USER_RW, message_show, message_store); |
| 901 | static struct kobj_attribute formatted_attribute = |
| 902 | __ATTR(formatted, USER_RW, message_show, message_store); |
| 903 | static struct kobj_attribute function_names_attribute = |
| 904 | __ATTR(function_names, USER_RW, message_show, message_store); |
| 905 | static struct kobj_attribute key_names_attribute = |
| 906 | __ATTR(key_names, USER_RW, message_show, message_store); |
| 907 | static struct kobj_attribute states_attribute = |
| 908 | __ATTR(states, USER_RW, message_show, message_store); |
| 909 | |
| 910 | /* |
| 911 | * Create groups of attributes so that we can create and destroy them all |
| 912 | * at once. |
| 913 | */ |
| 914 | static struct attribute *main_attrs[] = { |
| 915 | &keymap_attribute.attr, |
| 916 | &silent_attribute.attr, |
| 917 | &synth_attribute.attr, |
| 918 | &synth_direct_attribute.attr, |
| 919 | &version_attribute.attr, |
| 920 | &delimiters_attribute.attr, |
| 921 | &ex_num_attribute.attr, |
| 922 | &punc_all_attribute.attr, |
| 923 | &punc_most_attribute.attr, |
| 924 | &punc_some_attribute.attr, |
| 925 | &repeats_attribute.attr, |
| 926 | &attrib_bleep_attribute.attr, |
| 927 | &bell_pos_attribute.attr, |
| 928 | &bleep_time_attribute.attr, |
| 929 | &bleeps_attribute.attr, |
| 930 | &cursor_time_attribute.attr, |
| 931 | &key_echo_attribute.attr, |
| 932 | &no_interrupt_attribute.attr, |
| 933 | &punc_level_attribute.attr, |
| 934 | &reading_punc_attribute.attr, |
| 935 | &say_control_attribute.attr, |
| 936 | &say_word_ctl_attribute.attr, |
| 937 | &spell_delay_attribute.attr, |
| 938 | NULL, |
| 939 | }; |
| 940 | |
| 941 | static struct attribute *i18n_attrs[] = { |
| 942 | &announcements_attribute.attr, |
| 943 | &characters_attribute.attr, |
| 944 | &chartab_attribute.attr, |
| 945 | &ctl_keys_attribute.attr, |
| 946 | &colors_attribute.attr, |
| 947 | &formatted_attribute.attr, |
| 948 | &function_names_attribute.attr, |
| 949 | &key_names_attribute.attr, |
| 950 | &states_attribute.attr, |
| 951 | NULL, |
| 952 | }; |
| 953 | |
| 954 | /* |
| 955 | * An unnamed attribute group will put all of the attributes directly in |
| 956 | * the kobject directory. If we specify a name, a subdirectory will be |
| 957 | * created for the attributes with the directory being the name of the |
| 958 | * attribute group. |
| 959 | */ |
| 960 | static struct attribute_group main_attr_group = { |
| 961 | .attrs = main_attrs, |
| 962 | }; |
| 963 | |
| 964 | static struct attribute_group i18n_attr_group = { |
| 965 | .attrs = i18n_attrs, |
| 966 | .name = "i18n", |
| 967 | }; |
| 968 | |
| 969 | static struct kobject *accessibility_kobj; |
| 970 | struct kobject *speakup_kobj; |
| 971 | |
| 972 | int speakup_kobj_init(void) |
| 973 | { |
| 974 | int retval; |
| 975 | |
| 976 | /* |
| 977 | * Create a simple kobject with the name of "accessibility", |
| 978 | * located under /sys/ |
| 979 | * |
| 980 | * As this is a simple directory, no uevent will be sent to |
| 981 | * userspace. That is why this function should not be used for |
| 982 | * any type of dynamic kobjects, where the name and number are |
| 983 | * not known ahead of time. |
| 984 | */ |
| 985 | accessibility_kobj = kobject_create_and_add("accessibility", NULL); |
William Hubbs | 7959d55 | 2010-12-16 13:26:58 -0600 | [diff] [blame] | 986 | if (!accessibility_kobj) { |
| 987 | retval = -ENOMEM; |
| 988 | goto out; |
| 989 | } |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 990 | |
| 991 | speakup_kobj = kobject_create_and_add("speakup", accessibility_kobj); |
| 992 | if (!speakup_kobj) { |
Vasiliy Kulikov | 6a56486 | 2010-10-17 18:51:53 +0400 | [diff] [blame] | 993 | retval = -ENOMEM; |
| 994 | goto err_acc; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 995 | } |
| 996 | |
| 997 | /* Create the files associated with this kobject */ |
| 998 | retval = sysfs_create_group(speakup_kobj, &main_attr_group); |
| 999 | if (retval) |
Vasiliy Kulikov | 6a56486 | 2010-10-17 18:51:53 +0400 | [diff] [blame] | 1000 | goto err_speakup; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 1001 | |
| 1002 | retval = sysfs_create_group(speakup_kobj, &i18n_attr_group); |
| 1003 | if (retval) |
Vasiliy Kulikov | 6a56486 | 2010-10-17 18:51:53 +0400 | [diff] [blame] | 1004 | goto err_group; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 1005 | |
William Hubbs | 7959d55 | 2010-12-16 13:26:58 -0600 | [diff] [blame] | 1006 | goto out; |
Vasiliy Kulikov | 6a56486 | 2010-10-17 18:51:53 +0400 | [diff] [blame] | 1007 | |
| 1008 | err_group: |
| 1009 | sysfs_remove_group(speakup_kobj, &main_attr_group); |
| 1010 | err_speakup: |
| 1011 | kobject_put(speakup_kobj); |
| 1012 | err_acc: |
| 1013 | kobject_put(accessibility_kobj); |
William Hubbs | 7959d55 | 2010-12-16 13:26:58 -0600 | [diff] [blame] | 1014 | out: |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 1015 | return retval; |
| 1016 | } |
| 1017 | |
| 1018 | void speakup_kobj_exit(void) |
| 1019 | { |
Vasiliy Kulikov | 6a56486 | 2010-10-17 18:51:53 +0400 | [diff] [blame] | 1020 | sysfs_remove_group(speakup_kobj, &i18n_attr_group); |
| 1021 | sysfs_remove_group(speakup_kobj, &main_attr_group); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 1022 | kobject_put(speakup_kobj); |
| 1023 | kobject_put(accessibility_kobj); |
| 1024 | } |