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Commit | Line | Data |
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c6e3fd22 WH |
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> | |
576d742e | 18 | #include <linux/string_helpers.h> |
c6e3fd22 WH |
19 | #include <linux/sysfs.h> |
20 | #include <linux/ctype.h> | |
21 | ||
22 | #include "speakup.h" | |
23 | #include "spk_priv.h" | |
24 | ||
25 | /* | |
26 | * This is called when a user reads the characters or chartab sys file. | |
27 | */ | |
28 | static ssize_t chars_chartab_show(struct kobject *kobj, | |
29 | struct kobj_attribute *attr, char *buf) | |
30 | { | |
31 | int i; | |
32 | int len = 0; | |
33 | char *cp; | |
34 | char *buf_pointer = buf; | |
35 | size_t bufsize = PAGE_SIZE; | |
36 | unsigned long flags; | |
37 | ||
c2d7f743 | 38 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
39 | *buf_pointer = '\0'; |
40 | for (i = 0; i < 256; i++) { | |
41 | if (bufsize <= 1) | |
42 | break; | |
43 | if (strcmp("characters", attr->attr.name) == 0) { | |
44 | len = scnprintf(buf_pointer, bufsize, "%d\t%s\n", | |
ca2beaf8 | 45 | i, spk_characters[i]); |
c6e3fd22 WH |
46 | } else { /* show chartab entry */ |
47 | if (IS_TYPE(i, B_CTL)) | |
48 | cp = "B_CTL"; | |
49 | else if (IS_TYPE(i, WDLM)) | |
50 | cp = "WDLM"; | |
51 | else if (IS_TYPE(i, A_PUNC)) | |
52 | cp = "A_PUNC"; | |
53 | else if (IS_TYPE(i, PUNC)) | |
54 | cp = "PUNC"; | |
55 | else if (IS_TYPE(i, NUM)) | |
56 | cp = "NUM"; | |
57 | else if (IS_TYPE(i, A_CAP)) | |
58 | cp = "A_CAP"; | |
59 | else if (IS_TYPE(i, ALPHA)) | |
60 | cp = "ALPHA"; | |
61 | else if (IS_TYPE(i, B_CAPSYM)) | |
62 | cp = "B_CAPSYM"; | |
63 | else if (IS_TYPE(i, B_SYM)) | |
64 | cp = "B_SYM"; | |
65 | else | |
66 | cp = "0"; | |
67 | len = | |
68 | scnprintf(buf_pointer, bufsize, "%d\t%s\n", i, cp); | |
69 | } | |
70 | bufsize -= len; | |
71 | buf_pointer += len; | |
72 | } | |
c2d7f743 | 73 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
74 | return buf_pointer - buf; |
75 | } | |
76 | ||
77 | /* | |
78 | * Print informational messages or warnings after updating | |
79 | * character descriptions or chartab entries. | |
80 | */ | |
81 | static void report_char_chartab_status(int reset, int received, int used, | |
82 | int rejected, int do_characters) | |
83 | { | |
333c474b | 84 | static char const *object_type[] = { |
c6e3fd22 WH |
85 | "character class entries", |
86 | "character descriptions", | |
87 | }; | |
88 | int len; | |
89 | char buf[80]; | |
90 | ||
91 | if (reset) { | |
92 | pr_info("%s reset to defaults\n", object_type[do_characters]); | |
f1c6b7fb | 93 | } else if (received) { |
c6e3fd22 | 94 | len = snprintf(buf, sizeof(buf), |
f1c6b7fb WH |
95 | " updated %d of %d %s\n", |
96 | used, received, object_type[do_characters]); | |
c6e3fd22 WH |
97 | if (rejected) |
98 | snprintf(buf + (len - 1), sizeof(buf) - (len - 1), | |
99 | " with %d reject%s\n", | |
100 | rejected, rejected > 1 ? "s" : ""); | |
101 | printk(buf); | |
102 | } | |
103 | } | |
104 | ||
105 | /* | |
106 | * This is called when a user changes the characters or chartab parameters. | |
107 | */ | |
108 | static ssize_t chars_chartab_store(struct kobject *kobj, | |
109 | struct kobj_attribute *attr, const char *buf, size_t count) | |
110 | { | |
111 | char *cp = (char *) buf; | |
112 | char *end = cp + count; /* the null at the end of the buffer */ | |
113 | char *linefeed = NULL; | |
114 | char keyword[MAX_DESC_LEN + 1]; | |
115 | char *outptr = NULL; /* Will hold keyword or desc. */ | |
116 | char *temp = NULL; | |
117 | char *desc = NULL; | |
118 | ssize_t retval = count; | |
119 | unsigned long flags; | |
120 | unsigned long index = 0; | |
121 | int charclass = 0; | |
122 | int received = 0; | |
123 | int used = 0; | |
124 | int rejected = 0; | |
125 | int reset = 0; | |
126 | int do_characters = !strcmp(attr->attr.name, "characters"); | |
127 | size_t desc_length = 0; | |
128 | int i; | |
129 | ||
c2d7f743 | 130 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
131 | while (cp < end) { |
132 | ||
133 | while ((cp < end) && (*cp == ' ' || *cp == '\t')) | |
134 | cp++; | |
135 | ||
136 | if (cp == end) | |
137 | break; | |
138 | if ((*cp == '\n') || strchr("dDrR", *cp)) { | |
139 | reset = 1; | |
140 | break; | |
141 | } | |
142 | received++; | |
143 | ||
144 | linefeed = strchr(cp, '\n'); | |
145 | if (!linefeed) { | |
146 | rejected++; | |
147 | break; | |
148 | } | |
149 | ||
f1c6b7fb | 150 | if (!isdigit(*cp)) { |
c6e3fd22 WH |
151 | rejected++; |
152 | cp = linefeed + 1; | |
153 | continue; | |
154 | } | |
155 | ||
156 | index = simple_strtoul(cp, &temp, 10); | |
157 | if (index > 255) { | |
158 | rejected++; | |
159 | cp = linefeed + 1; | |
160 | continue; | |
161 | } | |
162 | ||
163 | while ((temp < linefeed) && (*temp == ' ' || *temp == '\t')) | |
164 | temp++; | |
165 | ||
166 | desc_length = linefeed - temp; | |
167 | if (desc_length > MAX_DESC_LEN) { | |
168 | rejected++; | |
169 | cp = linefeed + 1; | |
170 | continue; | |
171 | } | |
172 | if (do_characters) { | |
173 | desc = kmalloc(desc_length + 1, GFP_ATOMIC); | |
f1c6b7fb | 174 | if (!desc) { |
c6e3fd22 WH |
175 | retval = -ENOMEM; |
176 | reset = 1; /* just reset on error. */ | |
177 | break; | |
178 | } | |
179 | outptr = desc; | |
180 | } else { | |
181 | outptr = keyword; | |
182 | } | |
183 | ||
184 | for (i = 0; i < desc_length; i++) | |
185 | outptr[i] = temp[i]; | |
186 | outptr[desc_length] = '\0'; | |
187 | ||
188 | if (do_characters) { | |
ca2beaf8 ST |
189 | if (spk_characters[index] != spk_default_chars[index]) |
190 | kfree(spk_characters[index]); | |
191 | spk_characters[index] = desc; | |
c6e3fd22 WH |
192 | used++; |
193 | } else { | |
ca2beaf8 | 194 | charclass = spk_chartab_get_value(keyword); |
c6e3fd22 WH |
195 | if (charclass == 0) { |
196 | rejected++; | |
197 | cp = linefeed + 1; | |
198 | continue; | |
199 | } | |
200 | if (charclass != spk_chartab[index]) { | |
201 | spk_chartab[index] = charclass; | |
202 | used++; | |
203 | } | |
204 | } | |
205 | cp = linefeed + 1; | |
206 | } | |
207 | ||
208 | if (reset) { | |
209 | if (do_characters) | |
ca2beaf8 | 210 | spk_reset_default_chars(); |
c6e3fd22 | 211 | else |
ca2beaf8 | 212 | spk_reset_default_chartab(); |
c6e3fd22 WH |
213 | } |
214 | ||
c2d7f743 | 215 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
f1c6b7fb WH |
216 | report_char_chartab_status(reset, received, used, rejected, |
217 | do_characters); | |
c6e3fd22 WH |
218 | return retval; |
219 | } | |
220 | ||
221 | /* | |
222 | * This is called when a user reads the keymap parameter. | |
223 | */ | |
224 | static ssize_t keymap_show(struct kobject *kobj, struct kobj_attribute *attr, | |
225 | char *buf) | |
226 | { | |
227 | char *cp = buf; | |
228 | int i; | |
229 | int n; | |
230 | int num_keys; | |
231 | int nstates; | |
232 | u_char *cp1; | |
233 | u_char ch; | |
234 | unsigned long flags; | |
8e69a811 | 235 | |
c2d7f743 | 236 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
ca2beaf8 | 237 | cp1 = spk_key_buf + SHIFT_TBL_SIZE; |
c6e3fd22 WH |
238 | num_keys = (int)(*cp1); |
239 | nstates = (int)cp1[1]; | |
240 | cp += sprintf(cp, "%d, %d, %d,\n", KEY_MAP_VER, num_keys, nstates); | |
241 | cp1 += 2; /* now pointing at shift states */ | |
f1c6b7fb | 242 | /* dump num_keys+1 as first row is shift states + flags, |
13d825ed AF |
243 | * each subsequent row is key + states |
244 | */ | |
c6e3fd22 WH |
245 | for (n = 0; n <= num_keys; n++) { |
246 | for (i = 0; i <= nstates; i++) { | |
247 | ch = *cp1++; | |
248 | cp += sprintf(cp, "%d,", (int)ch); | |
249 | *cp++ = (i < nstates) ? SPACE : '\n'; | |
250 | } | |
251 | } | |
252 | cp += sprintf(cp, "0, %d\n", KEY_MAP_VER); | |
c2d7f743 | 253 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
a04c28d0 | 254 | return (int)(cp - buf); |
c6e3fd22 WH |
255 | } |
256 | ||
257 | /* | |
258 | * This is called when a user changes the keymap parameter. | |
259 | */ | |
260 | static ssize_t keymap_store(struct kobject *kobj, struct kobj_attribute *attr, | |
261 | const char *buf, size_t count) | |
262 | { | |
263 | int i; | |
264 | ssize_t ret = count; | |
265 | char *in_buff = NULL; | |
266 | char *cp; | |
267 | u_char *cp1; | |
268 | unsigned long flags; | |
269 | ||
c2d7f743 | 270 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
1aa5eb67 | 271 | in_buff = kmemdup(buf, count + 1, GFP_ATOMIC); |
f1c6b7fb | 272 | if (!in_buff) { |
c2d7f743 | 273 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
274 | return -ENOMEM; |
275 | } | |
c6e3fd22 | 276 | if (strchr("dDrR", *in_buff)) { |
ca2beaf8 | 277 | spk_set_key_info(spk_key_defaults, spk_key_buf); |
c6e3fd22 WH |
278 | pr_info("keymap set to default values\n"); |
279 | kfree(in_buff); | |
c2d7f743 | 280 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
281 | return count; |
282 | } | |
283 | if (in_buff[count - 1] == '\n') | |
f1c6b7fb | 284 | in_buff[count - 1] = '\0'; |
c6e3fd22 WH |
285 | cp = in_buff; |
286 | cp1 = (u_char *)in_buff; | |
287 | for (i = 0; i < 3; i++) { | |
ca2beaf8 | 288 | cp = spk_s2uchar(cp, cp1); |
c6e3fd22 WH |
289 | cp1++; |
290 | } | |
a04c28d0 SB |
291 | i = (int)cp1[-2] + 1; |
292 | i *= (int)cp1[-1] + 1; | |
c6e3fd22 WH |
293 | i += 2; /* 0 and last map ver */ |
294 | if (cp1[-3] != KEY_MAP_VER || cp1[-1] > 10 || | |
ca2beaf8 | 295 | i+SHIFT_TBL_SIZE+4 >= sizeof(spk_key_buf)) { |
c6e3fd22 WH |
296 | pr_warn("i %d %d %d %d\n", i, |
297 | (int)cp1[-3], (int)cp1[-2], (int)cp1[-1]); | |
298 | kfree(in_buff); | |
c2d7f743 | 299 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
300 | return -EINVAL; |
301 | } | |
302 | while (--i >= 0) { | |
ca2beaf8 | 303 | cp = spk_s2uchar(cp, cp1); |
c6e3fd22 WH |
304 | cp1++; |
305 | if (!(*cp)) | |
306 | break; | |
307 | } | |
308 | if (i != 0 || cp1[-1] != KEY_MAP_VER || cp1[-2] != 0) { | |
309 | ret = -EINVAL; | |
310 | pr_warn("end %d %d %d %d\n", i, | |
311 | (int)cp1[-3], (int)cp1[-2], (int)cp1[-1]); | |
312 | } else { | |
ca2beaf8 ST |
313 | if (spk_set_key_info(in_buff, spk_key_buf)) { |
314 | spk_set_key_info(spk_key_defaults, spk_key_buf); | |
c6e3fd22 WH |
315 | ret = -EINVAL; |
316 | pr_warn("set key failed\n"); | |
317 | } | |
318 | } | |
319 | kfree(in_buff); | |
c2d7f743 | 320 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
321 | return ret; |
322 | } | |
323 | ||
324 | /* | |
325 | * This is called when a user changes the value of the silent parameter. | |
326 | */ | |
327 | static ssize_t silent_store(struct kobject *kobj, struct kobj_attribute *attr, | |
328 | const char *buf, size_t count) | |
329 | { | |
330 | int len; | |
331 | struct vc_data *vc = vc_cons[fg_console].d; | |
332 | char ch = 0; | |
333 | char shut; | |
334 | unsigned long flags; | |
335 | ||
336 | len = strlen(buf); | |
e7bf352f | 337 | if (len > 0 && len < 3) { |
c6e3fd22 WH |
338 | ch = buf[0]; |
339 | if (ch == '\n') | |
340 | ch = '0'; | |
341 | } | |
342 | if (ch < '0' || ch > '7') { | |
343 | pr_warn("silent value '%c' not in range (0,7)\n", ch); | |
344 | return -EINVAL; | |
345 | } | |
c2d7f743 | 346 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
347 | if (ch&2) { |
348 | shut = 1; | |
ca2beaf8 | 349 | spk_do_flush(); |
c6e3fd22 WH |
350 | } else { |
351 | shut = 0; | |
352 | } | |
a04c28d0 | 353 | if (ch & 4) |
c6e3fd22 | 354 | shut |= 0x40; |
a04c28d0 | 355 | if (ch & 1) |
c6e3fd22 WH |
356 | spk_shut_up |= shut; |
357 | else | |
358 | spk_shut_up &= ~shut; | |
c2d7f743 | 359 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
360 | return count; |
361 | } | |
362 | ||
363 | /* | |
364 | * This is called when a user reads the synth setting. | |
365 | */ | |
366 | static ssize_t synth_show(struct kobject *kobj, struct kobj_attribute *attr, | |
367 | char *buf) | |
368 | { | |
369 | int rv; | |
370 | ||
a90624cf | 371 | if (!synth) |
c6e3fd22 WH |
372 | rv = sprintf(buf, "%s\n", "none"); |
373 | else | |
374 | rv = sprintf(buf, "%s\n", synth->name); | |
375 | return rv; | |
376 | } | |
377 | ||
378 | /* | |
379 | * This is called when a user requests to change synthesizers. | |
380 | */ | |
381 | static ssize_t synth_store(struct kobject *kobj, struct kobj_attribute *attr, | |
382 | const char *buf, size_t count) | |
383 | { | |
384 | int len; | |
385 | char new_synth_name[10]; | |
386 | ||
387 | len = strlen(buf); | |
388 | if (len < 2 || len > 9) | |
389 | return -EINVAL; | |
390 | strncpy(new_synth_name, buf, len); | |
391 | if (new_synth_name[len - 1] == '\n') | |
392 | len--; | |
393 | new_synth_name[len] = '\0'; | |
ca2beaf8 | 394 | spk_strlwr(new_synth_name); |
c6e3fd22 WH |
395 | if ((synth != NULL) && (!strcmp(new_synth_name, synth->name))) { |
396 | pr_warn("%s already in use\n", new_synth_name); | |
397 | } else if (synth_init(new_synth_name) != 0) { | |
398 | pr_warn("failed to init synth %s\n", new_synth_name); | |
399 | return -ENODEV; | |
400 | } | |
401 | return count; | |
402 | } | |
403 | ||
404 | /* | |
405 | * This is called when text is sent to the synth via the synth_direct file. | |
406 | */ | |
f1c6b7fb WH |
407 | static ssize_t synth_direct_store(struct kobject *kobj, |
408 | struct kobj_attribute *attr, const char *buf, size_t count) | |
c6e3fd22 WH |
409 | { |
410 | u_char tmp[256]; | |
411 | int len; | |
412 | int bytes; | |
413 | const char *ptr = buf; | |
77795318 | 414 | unsigned long flags; |
c6e3fd22 | 415 | |
f1c6b7fb | 416 | if (!synth) |
c6e3fd22 WH |
417 | return -EPERM; |
418 | ||
419 | len = strlen(buf); | |
77795318 | 420 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
421 | while (len > 0) { |
422 | bytes = min_t(size_t, len, 250); | |
423 | strncpy(tmp, ptr, bytes); | |
424 | tmp[bytes] = '\0'; | |
576d742e | 425 | string_unescape_any_inplace(tmp); |
c6e3fd22 WH |
426 | synth_printf("%s", tmp); |
427 | ptr += bytes; | |
428 | len -= bytes; | |
429 | } | |
77795318 | 430 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
431 | return count; |
432 | } | |
433 | ||
434 | /* | |
435 | * This function is called when a user reads the version. | |
436 | */ | |
437 | static ssize_t version_show(struct kobject *kobj, struct kobj_attribute *attr, | |
438 | char *buf) | |
439 | { | |
440 | char *cp; | |
441 | ||
442 | cp = buf; | |
443 | cp += sprintf(cp, "Speakup version %s\n", SPEAKUP_VERSION); | |
444 | if (synth) | |
445 | cp += sprintf(cp, "%s synthesizer driver version %s\n", | |
446 | synth->name, synth->version); | |
447 | return cp - buf; | |
448 | } | |
449 | ||
450 | /* | |
451 | * This is called when a user reads the punctuation settings. | |
452 | */ | |
453 | static ssize_t punc_show(struct kobject *kobj, struct kobj_attribute *attr, | |
454 | char *buf) | |
455 | { | |
456 | int i; | |
457 | char *cp = buf; | |
458 | struct st_var_header *p_header; | |
459 | struct punc_var_t *var; | |
460 | struct st_bits_data *pb; | |
461 | short mask; | |
462 | unsigned long flags; | |
463 | ||
ca2beaf8 | 464 | p_header = spk_var_header_by_name(attr->attr.name); |
a90624cf | 465 | if (!p_header) { |
f1c6b7fb WH |
466 | pr_warn("p_header is null, attr->attr.name is %s\n", |
467 | attr->attr.name); | |
c6e3fd22 WH |
468 | return -EINVAL; |
469 | } | |
470 | ||
ca2beaf8 | 471 | var = spk_get_punc_var(p_header->var_id); |
a90624cf | 472 | if (!var) { |
c6e3fd22 WH |
473 | pr_warn("var is null, p_header->var_id is %i\n", |
474 | p_header->var_id); | |
475 | return -EINVAL; | |
476 | } | |
477 | ||
c2d7f743 | 478 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
ca2beaf8 | 479 | pb = (struct st_bits_data *) &spk_punc_info[var->value]; |
c6e3fd22 WH |
480 | mask = pb->mask; |
481 | for (i = 33; i < 128; i++) { | |
482 | if (!(spk_chartab[i]&mask)) | |
483 | continue; | |
484 | *cp++ = (char)i; | |
485 | } | |
c2d7f743 | 486 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
487 | return cp-buf; |
488 | } | |
489 | ||
490 | /* | |
491 | * This is called when a user changes the punctuation settings. | |
492 | */ | |
493 | static ssize_t punc_store(struct kobject *kobj, struct kobj_attribute *attr, | |
494 | const char *buf, size_t count) | |
495 | { | |
496 | int x; | |
497 | struct st_var_header *p_header; | |
498 | struct punc_var_t *var; | |
499 | char punc_buf[100]; | |
500 | unsigned long flags; | |
501 | ||
502 | x = strlen(buf); | |
503 | if (x < 1 || x > 99) | |
504 | return -EINVAL; | |
505 | ||
ca2beaf8 | 506 | p_header = spk_var_header_by_name(attr->attr.name); |
a90624cf | 507 | if (!p_header) { |
f1c6b7fb WH |
508 | pr_warn("p_header is null, attr->attr.name is %s\n", |
509 | attr->attr.name); | |
c6e3fd22 WH |
510 | return -EINVAL; |
511 | } | |
512 | ||
ca2beaf8 | 513 | var = spk_get_punc_var(p_header->var_id); |
a90624cf | 514 | if (!var) { |
c6e3fd22 WH |
515 | pr_warn("var is null, p_header->var_id is %i\n", |
516 | p_header->var_id); | |
517 | return -EINVAL; | |
518 | } | |
519 | ||
520 | strncpy(punc_buf, buf, x); | |
521 | ||
522 | while (x && punc_buf[x - 1] == '\n') | |
523 | x--; | |
524 | punc_buf[x] = '\0'; | |
525 | ||
c2d7f743 | 526 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
527 | |
528 | if (*punc_buf == 'd' || *punc_buf == 'r') | |
aee175f5 | 529 | x = spk_set_mask_bits(NULL, var->value, 3); |
c6e3fd22 | 530 | else |
ca2beaf8 | 531 | x = spk_set_mask_bits(punc_buf, var->value, 3); |
c6e3fd22 | 532 | |
c2d7f743 | 533 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
534 | return count; |
535 | } | |
536 | ||
537 | /* | |
538 | * This function is called when a user reads one of the variable parameters. | |
539 | */ | |
540 | ssize_t spk_var_show(struct kobject *kobj, struct kobj_attribute *attr, | |
541 | char *buf) | |
542 | { | |
543 | int rv = 0; | |
544 | struct st_var_header *param; | |
545 | struct var_t *var; | |
546 | char *cp1; | |
547 | char *cp; | |
548 | char ch; | |
549 | unsigned long flags; | |
550 | ||
ca2beaf8 | 551 | param = spk_var_header_by_name(attr->attr.name); |
a90624cf | 552 | if (!param) |
c6e3fd22 WH |
553 | return -EINVAL; |
554 | ||
c2d7f743 | 555 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
556 | var = (struct var_t *) param->data; |
557 | switch (param->var_type) { | |
558 | case VAR_NUM: | |
559 | case VAR_TIME: | |
560 | if (var) | |
561 | rv = sprintf(buf, "%i\n", var->u.n.value); | |
562 | else | |
563 | rv = sprintf(buf, "0\n"); | |
564 | break; | |
565 | case VAR_STRING: | |
566 | if (var) { | |
567 | cp1 = buf; | |
568 | *cp1++ = '"'; | |
569 | for (cp = (char *)param->p_val; (ch = *cp); cp++) { | |
570 | if (ch >= ' ' && ch < '~') | |
571 | *cp1++ = ch; | |
572 | else | |
25c04868 | 573 | cp1 += sprintf(cp1, "\\x%02x", ch); |
c6e3fd22 WH |
574 | } |
575 | *cp1++ = '"'; | |
576 | *cp1++ = '\n'; | |
577 | *cp1 = '\0'; | |
578 | rv = cp1-buf; | |
579 | } else { | |
580 | rv = sprintf(buf, "\"\"\n"); | |
581 | } | |
582 | break; | |
583 | default: | |
584 | rv = sprintf(buf, "Bad parameter %s, type %i\n", | |
585 | param->name, param->var_type); | |
586 | break; | |
587 | } | |
c2d7f743 | 588 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
589 | return rv; |
590 | } | |
591 | EXPORT_SYMBOL_GPL(spk_var_show); | |
592 | ||
b71600bb RC |
593 | /* |
594 | * Used to reset either default_pitch or default_vol. | |
595 | */ | |
596 | static inline void spk_reset_default_value(char *header_name, | |
597 | int *synth_default_value, int idx) | |
598 | { | |
599 | struct st_var_header *param; | |
600 | ||
601 | if (synth && synth_default_value) { | |
602 | param = spk_var_header_by_name(header_name); | |
603 | if (param) { | |
604 | spk_set_num_var(synth_default_value[idx], | |
605 | param, E_NEW_DEFAULT); | |
606 | spk_set_num_var(0, param, E_DEFAULT); | |
607 | pr_info("%s reset to default value\n", param->name); | |
608 | } | |
609 | } | |
610 | } | |
611 | ||
c6e3fd22 WH |
612 | /* |
613 | * This function is called when a user echos a value to one of the | |
614 | * variable parameters. | |
615 | */ | |
616 | ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr, | |
617 | const char *buf, size_t count) | |
618 | { | |
619 | struct st_var_header *param; | |
620 | int ret; | |
621 | int len; | |
622 | char *cp; | |
623 | struct var_t *var_data; | |
a8eecad5 | 624 | long value; |
c6e3fd22 WH |
625 | unsigned long flags; |
626 | ||
ca2beaf8 | 627 | param = spk_var_header_by_name(attr->attr.name); |
a90624cf | 628 | if (!param) |
c6e3fd22 | 629 | return -EINVAL; |
a90624cf | 630 | if (!param->data) |
c6e3fd22 WH |
631 | return 0; |
632 | ret = 0; | |
576d742e AS |
633 | cp = (char *)buf; |
634 | string_unescape_any_inplace(cp); | |
c6e3fd22 | 635 | |
c2d7f743 | 636 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
637 | switch (param->var_type) { |
638 | case VAR_NUM: | |
639 | case VAR_TIME: | |
640 | if (*cp == 'd' || *cp == 'r' || *cp == '\0') | |
641 | len = E_DEFAULT; | |
642 | else if (*cp == '+' || *cp == '-') | |
643 | len = E_INC; | |
644 | else | |
645 | len = E_SET; | |
a8eecad5 AV |
646 | if (kstrtol(cp, 10, &value) == 0) |
647 | ret = spk_set_num_var(value, param, len); | |
648 | else | |
ea143c4f | 649 | pr_warn("overflow or parsing error has occurred"); |
6a48f88b | 650 | if (ret == -ERANGE) { |
c6e3fd22 WH |
651 | var_data = param->data; |
652 | pr_warn("value for %s out of range, expect %d to %d\n", | |
b71600bb | 653 | param->name, |
c6e3fd22 WH |
654 | var_data->u.n.low, var_data->u.n.high); |
655 | } | |
b71600bb RC |
656 | |
657 | /* | |
658 | * If voice was just changed, we might need to reset our default | |
659 | * pitch and volume. | |
660 | */ | |
faf487b6 CB |
661 | if (param->var_id == VOICE && synth && |
662 | (ret == 0 || ret == -ERESTART)) { | |
663 | var_data = param->data; | |
664 | value = var_data->u.n.value; | |
b71600bb RC |
665 | spk_reset_default_value("pitch", synth->default_pitch, |
666 | value); | |
667 | spk_reset_default_value("vol", synth->default_vol, | |
668 | value); | |
669 | } | |
c6e3fd22 WH |
670 | break; |
671 | case VAR_STRING: | |
b71600bb RC |
672 | len = strlen(cp); |
673 | if ((len >= 1) && (cp[len - 1] == '\n')) | |
c6e3fd22 | 674 | --len; |
b71600bb RC |
675 | if ((len >= 2) && (cp[0] == '"') && (cp[len - 1] == '"')) { |
676 | ++cp; | |
c6e3fd22 WH |
677 | len -= 2; |
678 | } | |
c6e3fd22 | 679 | cp[len] = '\0'; |
b71600bb | 680 | ret = spk_set_string_var(cp, param, len); |
6a48f88b | 681 | if (ret == -E2BIG) |
c6e3fd22 | 682 | pr_warn("value too long for %s\n", |
b71600bb | 683 | param->name); |
c6e3fd22 WH |
684 | break; |
685 | default: | |
686 | pr_warn("%s unknown type %d\n", | |
687 | param->name, (int)param->var_type); | |
688 | break; | |
689 | } | |
c2d7f743 | 690 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 | 691 | |
6a48f88b | 692 | if (ret == -ERESTART) |
b71600bb | 693 | pr_info("%s reset to default value\n", param->name); |
c6e3fd22 WH |
694 | return count; |
695 | } | |
696 | EXPORT_SYMBOL_GPL(spk_var_store); | |
697 | ||
698 | /* | |
699 | * Functions for reading and writing lists of i18n messages. Incomplete. | |
700 | */ | |
701 | ||
702 | static ssize_t message_show_helper(char *buf, enum msg_index_t first, | |
703 | enum msg_index_t last) | |
704 | { | |
705 | size_t bufsize = PAGE_SIZE; | |
706 | char *buf_pointer = buf; | |
707 | int printed; | |
708 | enum msg_index_t cursor; | |
709 | int index = 0; | |
710 | *buf_pointer = '\0'; /* buf_pointer always looking at a NUL byte. */ | |
711 | ||
712 | for (cursor = first; cursor <= last; cursor++, index++) { | |
713 | if (bufsize <= 1) | |
714 | break; | |
715 | printed = scnprintf(buf_pointer, bufsize, "%d\t%s\n", | |
ca2beaf8 | 716 | index, spk_msg_get(cursor)); |
c6e3fd22 WH |
717 | buf_pointer += printed; |
718 | bufsize -= printed; | |
719 | } | |
720 | ||
721 | return buf_pointer - buf; | |
722 | } | |
723 | ||
724 | static void report_msg_status(int reset, int received, int used, | |
725 | int rejected, char *groupname) | |
726 | { | |
727 | int len; | |
728 | char buf[160]; | |
729 | ||
730 | if (reset) { | |
731 | pr_info("i18n messages from group %s reset to defaults\n", | |
732 | groupname); | |
f1c6b7fb | 733 | } else if (received) { |
c6e3fd22 WH |
734 | len = snprintf(buf, sizeof(buf), |
735 | " updated %d of %d i18n messages from group %s\n", | |
736 | used, received, groupname); | |
737 | if (rejected) | |
738 | snprintf(buf + (len - 1), sizeof(buf) - (len - 1), | |
739 | " with %d reject%s\n", | |
740 | rejected, rejected > 1 ? "s" : ""); | |
741 | printk(buf); | |
742 | } | |
743 | } | |
744 | ||
745 | static ssize_t message_store_helper(const char *buf, size_t count, | |
746 | struct msg_group_t *group) | |
747 | { | |
748 | char *cp = (char *) buf; | |
749 | char *end = cp + count; | |
750 | char *linefeed = NULL; | |
751 | char *temp = NULL; | |
752 | ssize_t msg_stored = 0; | |
753 | ssize_t retval = count; | |
754 | size_t desc_length = 0; | |
755 | unsigned long index = 0; | |
756 | int received = 0; | |
757 | int used = 0; | |
758 | int rejected = 0; | |
759 | int reset = 0; | |
760 | enum msg_index_t firstmessage = group->start; | |
761 | enum msg_index_t lastmessage = group->end; | |
762 | enum msg_index_t curmessage; | |
763 | ||
764 | while (cp < end) { | |
765 | ||
766 | while ((cp < end) && (*cp == ' ' || *cp == '\t')) | |
767 | cp++; | |
768 | ||
769 | if (cp == end) | |
770 | break; | |
771 | if (strchr("dDrR", *cp)) { | |
772 | reset = 1; | |
773 | break; | |
774 | } | |
775 | received++; | |
776 | ||
777 | linefeed = strchr(cp, '\n'); | |
778 | if (!linefeed) { | |
779 | rejected++; | |
780 | break; | |
781 | } | |
782 | ||
f1c6b7fb | 783 | if (!isdigit(*cp)) { |
c6e3fd22 WH |
784 | rejected++; |
785 | cp = linefeed + 1; | |
786 | continue; | |
787 | } | |
788 | ||
789 | index = simple_strtoul(cp, &temp, 10); | |
790 | ||
791 | while ((temp < linefeed) && (*temp == ' ' || *temp == '\t')) | |
792 | temp++; | |
793 | ||
794 | desc_length = linefeed - temp; | |
795 | curmessage = firstmessage + index; | |
796 | ||
797 | /* | |
798 | * Note the check (curmessage < firstmessage). It is not | |
799 | * redundant. Suppose that the user gave us an index | |
800 | * equal to ULONG_MAX - 1. If firstmessage > 1, then | |
801 | * firstmessage + index < firstmessage! | |
802 | */ | |
803 | ||
804 | if ((curmessage < firstmessage) || (curmessage > lastmessage)) { | |
805 | rejected++; | |
806 | cp = linefeed + 1; | |
807 | continue; | |
808 | } | |
809 | ||
ca2beaf8 | 810 | msg_stored = spk_msg_set(curmessage, temp, desc_length); |
c6e3fd22 WH |
811 | if (msg_stored < 0) { |
812 | retval = msg_stored; | |
813 | if (msg_stored == -ENOMEM) | |
814 | reset = 1; | |
815 | break; | |
c6e3fd22 WH |
816 | } |
817 | ||
1f74d5f6 YT |
818 | used++; |
819 | ||
c6e3fd22 WH |
820 | cp = linefeed + 1; |
821 | } | |
822 | ||
823 | if (reset) | |
ca2beaf8 | 824 | spk_reset_msg_group(group); |
c6e3fd22 WH |
825 | |
826 | report_msg_status(reset, received, used, rejected, group->name); | |
827 | return retval; | |
828 | } | |
829 | ||
830 | static ssize_t message_show(struct kobject *kobj, | |
831 | struct kobj_attribute *attr, char *buf) | |
832 | { | |
833 | ssize_t retval = 0; | |
ca2beaf8 | 834 | struct msg_group_t *group = spk_find_msg_group(attr->attr.name); |
c6e3fd22 WH |
835 | unsigned long flags; |
836 | ||
f1c6b7fb | 837 | BUG_ON(!group); |
c2d7f743 | 838 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
c6e3fd22 | 839 | retval = message_show_helper(buf, group->start, group->end); |
c2d7f743 | 840 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
c6e3fd22 WH |
841 | return retval; |
842 | } | |
843 | ||
844 | static ssize_t message_store(struct kobject *kobj, struct kobj_attribute *attr, | |
845 | const char *buf, size_t count) | |
846 | { | |
ca2beaf8 | 847 | struct msg_group_t *group = spk_find_msg_group(attr->attr.name); |
c6e3fd22 | 848 | |
f1c6b7fb | 849 | BUG_ON(!group); |
f7d63547 | 850 | return message_store_helper(buf, count, group); |
c6e3fd22 WH |
851 | } |
852 | ||
853 | /* | |
854 | * Declare the attributes. | |
855 | */ | |
856 | static struct kobj_attribute keymap_attribute = | |
d901aaa7 | 857 | __ATTR_RW(keymap); |
c6e3fd22 | 858 | static struct kobj_attribute silent_attribute = |
d901aaa7 | 859 | __ATTR_WO(silent); |
c6e3fd22 | 860 | static struct kobj_attribute synth_attribute = |
d901aaa7 | 861 | __ATTR_RW(synth); |
c6e3fd22 | 862 | static struct kobj_attribute synth_direct_attribute = |
d901aaa7 | 863 | __ATTR_WO(synth_direct); |
c6e3fd22 WH |
864 | static struct kobj_attribute version_attribute = |
865 | __ATTR_RO(version); | |
866 | ||
867 | static struct kobj_attribute delimiters_attribute = | |
f4535f4e | 868 | __ATTR(delimiters, 0644, punc_show, punc_store); |
c6e3fd22 | 869 | static struct kobj_attribute ex_num_attribute = |
f4535f4e | 870 | __ATTR(ex_num, 0644, punc_show, punc_store); |
c6e3fd22 | 871 | static struct kobj_attribute punc_all_attribute = |
f4535f4e | 872 | __ATTR(punc_all, 0644, punc_show, punc_store); |
c6e3fd22 | 873 | static struct kobj_attribute punc_most_attribute = |
f4535f4e | 874 | __ATTR(punc_most, 0644, punc_show, punc_store); |
c6e3fd22 | 875 | static struct kobj_attribute punc_some_attribute = |
f4535f4e | 876 | __ATTR(punc_some, 0644, punc_show, punc_store); |
c6e3fd22 | 877 | static struct kobj_attribute repeats_attribute = |
f4535f4e | 878 | __ATTR(repeats, 0644, punc_show, punc_store); |
c6e3fd22 WH |
879 | |
880 | static struct kobj_attribute attrib_bleep_attribute = | |
f4535f4e | 881 | __ATTR(attrib_bleep, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 882 | static struct kobj_attribute bell_pos_attribute = |
f4535f4e | 883 | __ATTR(bell_pos, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 884 | static struct kobj_attribute bleep_time_attribute = |
f4535f4e | 885 | __ATTR(bleep_time, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 886 | static struct kobj_attribute bleeps_attribute = |
f4535f4e | 887 | __ATTR(bleeps, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 888 | static struct kobj_attribute cursor_time_attribute = |
f4535f4e | 889 | __ATTR(cursor_time, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 890 | static struct kobj_attribute key_echo_attribute = |
f4535f4e | 891 | __ATTR(key_echo, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 892 | static struct kobj_attribute no_interrupt_attribute = |
f4535f4e | 893 | __ATTR(no_interrupt, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 894 | static struct kobj_attribute punc_level_attribute = |
f4535f4e | 895 | __ATTR(punc_level, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 896 | static struct kobj_attribute reading_punc_attribute = |
f4535f4e | 897 | __ATTR(reading_punc, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 898 | static struct kobj_attribute say_control_attribute = |
f4535f4e | 899 | __ATTR(say_control, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 900 | static struct kobj_attribute say_word_ctl_attribute = |
f4535f4e | 901 | __ATTR(say_word_ctl, 0644, spk_var_show, spk_var_store); |
c6e3fd22 | 902 | static struct kobj_attribute spell_delay_attribute = |
f4535f4e | 903 | __ATTR(spell_delay, 0644, spk_var_show, spk_var_store); |
c6e3fd22 WH |
904 | |
905 | /* | |
906 | * These attributes are i18n related. | |
907 | */ | |
908 | static struct kobj_attribute announcements_attribute = | |
f4535f4e | 909 | __ATTR(announcements, 0644, message_show, message_store); |
c6e3fd22 | 910 | static struct kobj_attribute characters_attribute = |
f4535f4e | 911 | __ATTR(characters, 0644, chars_chartab_show, |
225557bf | 912 | chars_chartab_store); |
c6e3fd22 | 913 | static struct kobj_attribute chartab_attribute = |
f4535f4e | 914 | __ATTR(chartab, 0644, chars_chartab_show, |
225557bf | 915 | chars_chartab_store); |
c6e3fd22 | 916 | static struct kobj_attribute ctl_keys_attribute = |
f4535f4e | 917 | __ATTR(ctl_keys, 0644, message_show, message_store); |
c6e3fd22 | 918 | static struct kobj_attribute colors_attribute = |
f4535f4e | 919 | __ATTR(colors, 0644, message_show, message_store); |
c6e3fd22 | 920 | static struct kobj_attribute formatted_attribute = |
f4535f4e | 921 | __ATTR(formatted, 0644, message_show, message_store); |
c6e3fd22 | 922 | static struct kobj_attribute function_names_attribute = |
f4535f4e | 923 | __ATTR(function_names, 0644, message_show, message_store); |
c6e3fd22 | 924 | static struct kobj_attribute key_names_attribute = |
f4535f4e | 925 | __ATTR(key_names, 0644, message_show, message_store); |
c6e3fd22 | 926 | static struct kobj_attribute states_attribute = |
f4535f4e | 927 | __ATTR(states, 0644, message_show, message_store); |
c6e3fd22 WH |
928 | |
929 | /* | |
930 | * Create groups of attributes so that we can create and destroy them all | |
931 | * at once. | |
932 | */ | |
933 | static struct attribute *main_attrs[] = { | |
934 | &keymap_attribute.attr, | |
935 | &silent_attribute.attr, | |
936 | &synth_attribute.attr, | |
937 | &synth_direct_attribute.attr, | |
938 | &version_attribute.attr, | |
939 | &delimiters_attribute.attr, | |
940 | &ex_num_attribute.attr, | |
941 | &punc_all_attribute.attr, | |
942 | &punc_most_attribute.attr, | |
943 | &punc_some_attribute.attr, | |
944 | &repeats_attribute.attr, | |
945 | &attrib_bleep_attribute.attr, | |
946 | &bell_pos_attribute.attr, | |
947 | &bleep_time_attribute.attr, | |
948 | &bleeps_attribute.attr, | |
949 | &cursor_time_attribute.attr, | |
950 | &key_echo_attribute.attr, | |
951 | &no_interrupt_attribute.attr, | |
952 | &punc_level_attribute.attr, | |
953 | &reading_punc_attribute.attr, | |
954 | &say_control_attribute.attr, | |
955 | &say_word_ctl_attribute.attr, | |
956 | &spell_delay_attribute.attr, | |
957 | NULL, | |
958 | }; | |
959 | ||
960 | static struct attribute *i18n_attrs[] = { | |
961 | &announcements_attribute.attr, | |
962 | &characters_attribute.attr, | |
963 | &chartab_attribute.attr, | |
964 | &ctl_keys_attribute.attr, | |
965 | &colors_attribute.attr, | |
966 | &formatted_attribute.attr, | |
967 | &function_names_attribute.attr, | |
968 | &key_names_attribute.attr, | |
969 | &states_attribute.attr, | |
970 | NULL, | |
971 | }; | |
972 | ||
973 | /* | |
974 | * An unnamed attribute group will put all of the attributes directly in | |
975 | * the kobject directory. If we specify a name, a subdirectory will be | |
976 | * created for the attributes with the directory being the name of the | |
977 | * attribute group. | |
978 | */ | |
c4610f6e | 979 | static const struct attribute_group main_attr_group = { |
c6e3fd22 WH |
980 | .attrs = main_attrs, |
981 | }; | |
982 | ||
c4610f6e | 983 | static const struct attribute_group i18n_attr_group = { |
c6e3fd22 WH |
984 | .attrs = i18n_attrs, |
985 | .name = "i18n", | |
986 | }; | |
987 | ||
988 | static struct kobject *accessibility_kobj; | |
989 | struct kobject *speakup_kobj; | |
990 | ||
991 | int speakup_kobj_init(void) | |
992 | { | |
993 | int retval; | |
994 | ||
995 | /* | |
996 | * Create a simple kobject with the name of "accessibility", | |
997 | * located under /sys/ | |
998 | * | |
999 | * As this is a simple directory, no uevent will be sent to | |
1000 | * userspace. That is why this function should not be used for | |
1001 | * any type of dynamic kobjects, where the name and number are | |
1002 | * not known ahead of time. | |
1003 | */ | |
1004 | accessibility_kobj = kobject_create_and_add("accessibility", NULL); | |
7959d556 WH |
1005 | if (!accessibility_kobj) { |
1006 | retval = -ENOMEM; | |
1007 | goto out; | |
1008 | } | |
c6e3fd22 WH |
1009 | |
1010 | speakup_kobj = kobject_create_and_add("speakup", accessibility_kobj); | |
1011 | if (!speakup_kobj) { | |
6a564867 VK |
1012 | retval = -ENOMEM; |
1013 | goto err_acc; | |
c6e3fd22 WH |
1014 | } |
1015 | ||
1016 | /* Create the files associated with this kobject */ | |
1017 | retval = sysfs_create_group(speakup_kobj, &main_attr_group); | |
1018 | if (retval) | |
6a564867 | 1019 | goto err_speakup; |
c6e3fd22 WH |
1020 | |
1021 | retval = sysfs_create_group(speakup_kobj, &i18n_attr_group); | |
1022 | if (retval) | |
6a564867 VK |
1023 | goto err_group; |
1024 | ||
7959d556 | 1025 | goto out; |
c6e3fd22 | 1026 | |
6a564867 VK |
1027 | err_group: |
1028 | sysfs_remove_group(speakup_kobj, &main_attr_group); | |
1029 | err_speakup: | |
1030 | kobject_put(speakup_kobj); | |
1031 | err_acc: | |
1032 | kobject_put(accessibility_kobj); | |
7959d556 | 1033 | out: |
c6e3fd22 WH |
1034 | return retval; |
1035 | } | |
1036 | ||
1037 | void speakup_kobj_exit(void) | |
1038 | { | |
6a564867 VK |
1039 | sysfs_remove_group(speakup_kobj, &i18n_attr_group); |
1040 | sysfs_remove_group(speakup_kobj, &main_attr_group); | |
c6e3fd22 WH |
1041 | kobject_put(speakup_kobj); |
1042 | kobject_put(accessibility_kobj); | |
1043 | } |