/drivers/staging/speakup/varhandlers.c
C | 404 lines | 376 code | 23 blank | 5 comment | 144 complexity | 2521827b48ec98ee1c3135a693541903 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
1#include <linux/ctype.h> 2#include "spk_types.h" 3#include "spk_priv.h" 4#include "speakup.h" 5 6static struct st_var_header var_headers[] = { 7 { "version", VERSION, VAR_PROC, NULL, NULL }, 8 { "synth_name", SYNTH, VAR_PROC, NULL, NULL }, 9 { "keymap", KEYMAP, VAR_PROC, NULL, NULL }, 10 { "silent", SILENT, VAR_PROC, NULL, NULL }, 11 { "punc_some", PUNC_SOME, VAR_PROC, NULL, NULL }, 12 { "punc_most", PUNC_MOST, VAR_PROC, NULL, NULL }, 13 { "punc_all", PUNC_ALL, VAR_PROC, NULL, NULL }, 14 { "delimiters", DELIM, VAR_PROC, NULL, NULL }, 15 { "repeats", REPEATS, VAR_PROC, NULL, NULL }, 16 { "ex_num", EXNUMBER, VAR_PROC, NULL, NULL }, 17 { "characters", CHARS, VAR_PROC, NULL, NULL }, 18 { "synth_direct", SYNTH_DIRECT, VAR_PROC, NULL, NULL }, 19 { "caps_start", CAPS_START, VAR_STRING, str_caps_start, NULL }, 20 { "caps_stop", CAPS_STOP, VAR_STRING, str_caps_stop, NULL }, 21 { "delay_time", DELAY, VAR_TIME, NULL, NULL }, 22 { "trigger_time", TRIGGER, VAR_TIME, NULL, NULL }, 23 { "jiffy_delta", JIFFY, VAR_TIME, NULL, NULL }, 24 { "full_time", FULL, VAR_TIME, NULL, NULL }, 25 { "spell_delay", SPELL_DELAY, VAR_NUM, &spell_delay, NULL }, 26 { "bleeps", BLEEPS, VAR_NUM, &bleeps, NULL }, 27 { "attrib_bleep", ATTRIB_BLEEP, VAR_NUM, &attrib_bleep, NULL }, 28 { "bleep_time", BLEEP_TIME, VAR_TIME, &bleep_time, NULL }, 29 { "cursor_time", CURSOR_TIME, VAR_TIME, NULL, NULL }, 30 { "punc_level", PUNC_LEVEL, VAR_NUM, &punc_level, NULL }, 31 { "reading_punc", READING_PUNC, VAR_NUM, &reading_punc, NULL }, 32 { "say_control", SAY_CONTROL, VAR_NUM, &say_ctrl, NULL }, 33 { "say_word_ctl", SAY_WORD_CTL, VAR_NUM, &say_word_ctl, NULL }, 34 { "no_interrupt", NO_INTERRUPT, VAR_NUM, &no_intr, NULL }, 35 { "key_echo", KEY_ECHO, VAR_NUM, &key_echo, NULL }, 36 { "bell_pos", BELL_POS, VAR_NUM, &bell_pos, NULL }, 37 { "rate", RATE, VAR_NUM, NULL, NULL }, 38 { "pitch", PITCH, VAR_NUM, NULL, NULL }, 39 { "vol", VOL, VAR_NUM, NULL, NULL }, 40 { "tone", TONE, VAR_NUM, NULL, NULL }, 41 { "punct", PUNCT, VAR_NUM, NULL, NULL }, 42 { "voice", VOICE, VAR_NUM, NULL, NULL }, 43 { "freq", FREQUENCY, VAR_NUM, NULL, NULL }, 44 { "lang", LANG, VAR_NUM, NULL, NULL }, 45 { "chartab", CHARTAB, VAR_PROC, NULL, NULL }, 46 { "direct", DIRECT, VAR_NUM, NULL, NULL }, 47}; 48 49static struct st_var_header *var_ptrs[MAXVARS] = { 0, 0, 0 }; 50 51static struct punc_var_t punc_vars[] = { 52 { PUNC_SOME, 1 }, 53 { PUNC_MOST, 2 }, 54 { PUNC_ALL, 3 }, 55 { DELIM, 4 }, 56 { REPEATS, 5 }, 57 { EXNUMBER, 6 }, 58 { -1, -1 }, 59}; 60 61int chartab_get_value(char *keyword) 62{ 63 int value = 0; 64 65 if (!strcmp(keyword, "ALPHA")) 66 value = ALPHA; 67 else if (!strcmp(keyword, "B_CTL")) 68 value = B_CTL; 69 else if (!strcmp(keyword, "WDLM")) 70 value = WDLM; 71 else if (!strcmp(keyword, "A_PUNC")) 72 value = A_PUNC; 73 else if (!strcmp(keyword, "PUNC")) 74 value = PUNC; 75 else if (!strcmp(keyword, "NUM")) 76 value = NUM; 77 else if (!strcmp(keyword, "A_CAP")) 78 value = A_CAP; 79 else if (!strcmp(keyword, "B_CAPSYM")) 80 value = B_CAPSYM; 81 else if (!strcmp(keyword, "B_SYM")) 82 value = B_SYM; 83 return value; 84} 85 86void speakup_register_var(struct var_t *var) 87{ 88 static char nothing[2] = "\0"; 89 int i; 90 struct st_var_header *p_header; 91 92 BUG_ON(!var || var->var_id < 0 || var->var_id >= MAXVARS); 93 if (var_ptrs[0] == NULL) { 94 for (i = 0; i < MAXVARS; i++) { 95 p_header = &var_headers[i]; 96 var_ptrs[p_header->var_id] = p_header; 97 p_header->data = NULL; 98 } 99 } 100 p_header = var_ptrs[var->var_id]; 101 if (p_header->data != NULL) 102 return; 103 p_header->data = var; 104 switch (p_header->var_type) { 105 case VAR_STRING: 106 set_string_var(nothing, p_header, 0); 107 break; 108 case VAR_NUM: 109 case VAR_TIME: 110 set_num_var(0, p_header, E_DEFAULT); 111 break; 112 default: 113 break; 114 } 115 return; 116} 117 118void speakup_unregister_var(enum var_id_t var_id) 119{ 120 struct st_var_header *p_header; 121 BUG_ON(var_id < 0 || var_id >= MAXVARS); 122 p_header = var_ptrs[var_id]; 123 p_header->data = NULL; 124} 125 126struct st_var_header *get_var_header(enum var_id_t var_id) 127{ 128 struct st_var_header *p_header; 129 if (var_id < 0 || var_id >= MAXVARS) 130 return NULL; 131 p_header = var_ptrs[var_id]; 132 if (p_header->data == NULL) 133 return NULL; 134 return p_header; 135} 136 137struct st_var_header *var_header_by_name(const char *name) 138{ 139 int i; 140 struct st_var_header *where = NULL; 141 142 if (name != NULL) { 143 i = 0; 144 while ((i < MAXVARS) && (where == NULL)) { 145 if (strcmp(name, var_ptrs[i]->name) == 0) 146 where = var_ptrs[i]; 147 else 148 i++; 149 } 150 } 151 return where; 152} 153 154struct var_t *get_var(enum var_id_t var_id) 155{ 156 BUG_ON(var_id < 0 || var_id >= MAXVARS); 157 BUG_ON(!var_ptrs[var_id]); 158 return var_ptrs[var_id]->data; 159} 160EXPORT_SYMBOL_GPL(get_var); 161 162struct punc_var_t *get_punc_var(enum var_id_t var_id) 163{ 164 struct punc_var_t *rv = NULL; 165 struct punc_var_t *where; 166 167 where = punc_vars; 168 while ((where->var_id != -1) && (rv == NULL)) { 169 if (where->var_id == var_id) 170 rv = where; 171 else 172 where++; 173 } 174 return rv; 175} 176 177/* handlers for setting vars */ 178int set_num_var(int input, struct st_var_header *var, int how) 179{ 180 int val; 181 short ret = 0; 182 int *p_val = var->p_val; 183 int l; 184 char buf[32]; 185 char *cp; 186 struct var_t *var_data = var->data; 187 if (var_data == NULL) 188 return E_UNDEF; 189 190 if (how == E_NEW_DEFAULT) { 191 if (input < var_data->u.n.low || input > var_data->u.n.high) 192 ret = E_RANGE; 193 else 194 var_data->u.n.default_val = input; 195 return ret; 196 } 197 if (how == E_DEFAULT) { 198 val = var_data->u.n.default_val; 199 ret = SET_DEFAULT; 200 } else { 201 if (how == E_SET) 202 val = input; 203 else 204 val = var_data->u.n.value; 205 if (how == E_INC) 206 val += input; 207 else if (how == E_DEC) 208 val -= input; 209 if (val < var_data->u.n.low || val > var_data->u.n.high) 210 return E_RANGE; 211 } 212 var_data->u.n.value = val; 213 if (var->var_type == VAR_TIME && p_val != NULL) { 214 *p_val = msecs_to_jiffies(val); 215 return ret; 216 } 217 if (p_val != NULL) 218 *p_val = val; 219 if (var->var_id == PUNC_LEVEL) { 220 punc_mask = punc_masks[val]; 221 return ret; 222 } 223 if (var_data->u.n.multiplier != 0) 224 val *= var_data->u.n.multiplier; 225 val += var_data->u.n.offset; 226 if (var->var_id < FIRST_SYNTH_VAR || synth == NULL) 227 return ret; 228 if (synth->synth_adjust != NULL) { 229 int status = synth->synth_adjust(var); 230 return (status != 0) ? status : ret; 231 } 232 if (!var_data->u.n.synth_fmt) 233 return ret; 234 if (var->var_id == PITCH) 235 cp = pitch_buff; 236 else 237 cp = buf; 238 if (!var_data->u.n.out_str) 239 l = sprintf(cp, var_data->u.n.synth_fmt, (int)val); 240 else 241 l = sprintf(cp, 242 var_data->u.n.synth_fmt, var_data->u.n.out_str[val]); 243 synth_printf("%s", cp); 244 return ret; 245} 246 247int set_string_var(const char *page, struct st_var_header *var, int len) 248{ 249 int ret = 0; 250 struct var_t *var_data = var->data; 251 if (var_data == NULL) 252 return E_UNDEF; 253 if (len > MAXVARLEN) 254 return -E_TOOLONG; 255 if (!len) { 256 if (!var_data->u.s.default_val) 257 return 0; 258 ret = SET_DEFAULT; 259 if (!var->p_val) 260 var->p_val = var_data->u.s.default_val; 261 if (var->p_val != var_data->u.s.default_val) 262 strcpy((char *)var->p_val, var_data->u.s.default_val); 263 } else if (var->p_val) 264 strcpy((char *)var->p_val, page); 265 else 266 return -E_TOOLONG; 267 return ret; 268} 269 270/* set_mask_bits sets or clears the punc/delim/repeat bits, 271 * if input is null uses the defaults. 272 * values for how: 0 clears bits of chars supplied, 273 * 1 clears allk, 2 sets bits for chars */ 274int set_mask_bits(const char *input, const int which, const int how) 275{ 276 u_char *cp; 277 short mask = punc_info[which].mask; 278 if (how&1) { 279 for (cp = (u_char *)punc_info[3].value; *cp; cp++) 280 spk_chartab[*cp] &= ~mask; 281 } 282 cp = (u_char *)input; 283 if (cp == 0) 284 cp = punc_info[which].value; 285 else { 286 for ( ; *cp; cp++) { 287 if (*cp < SPACE) 288 break; 289 if (mask < PUNC) { 290 if (!(spk_chartab[*cp]&PUNC)) 291 break; 292 } else if (spk_chartab[*cp]&B_NUM) 293 break; 294 } 295 if (*cp) 296 return -EINVAL; 297 cp = (u_char *)input; 298 } 299 if (how&2) { 300 for ( ; *cp; cp++) 301 if (*cp > SPACE) 302 spk_chartab[*cp] |= mask; 303 } else { 304 for ( ; *cp; cp++) 305 if (*cp > SPACE) 306 spk_chartab[*cp] &= ~mask; 307 } 308 return 0; 309} 310 311char *strlwr(char *s) 312{ 313 char *p; 314 if (s == NULL) 315 return NULL; 316 317 for (p = s; *p; p++) 318 *p = tolower(*p); 319 return s; 320} 321 322char *speakup_s2i(char *start, int *dest) 323{ 324 int val; 325 char ch = *start; 326 if (ch == '-' || ch == '+') 327 start++; 328 if (*start < '0' || *start > '9') 329 return start; 330 val = (*start) - '0'; 331 start++; 332 while (*start >= '0' && *start <= '9') { 333 val *= 10; 334 val += (*start) - '0'; 335 start++; 336 } 337 if (ch == '-') 338 *dest = -val; 339 else 340 *dest = val; 341 return start; 342} 343 344char *s2uchar(char *start, char *dest) 345{ 346 int val = 0; 347 while (*start && *start <= SPACE) 348 start++; 349 while (*start >= '0' && *start <= '9') { 350 val *= 10; 351 val += (*start) - '0'; 352 start++; 353 } 354 if (*start == ',') 355 start++; 356 *dest = (u_char)val; 357 return start; 358} 359 360char *xlate(char *s) 361{ 362 static const char finds[] = "nrtvafe"; 363 static const char subs[] = "\n\r\t\013\001\014\033"; 364 static const char hx[] = "0123456789abcdefABCDEF"; 365 char *p = s, *p1, *p2, c; 366 int num; 367 while ((p = strchr(p, '\\'))) { 368 p1 = p+1; 369 p2 = strchr(finds, *p1); 370 if (p2) { 371 *p++ = subs[p2-finds]; 372 p1++; 373 } else if (*p1 >= '0' && *p1 <= '7') { 374 num = (*p1++)&7; 375 while (num < 256 && *p1 >= '0' && *p1 <= '7') { 376 num <<= 3; 377 num = (*p1++)&7; 378 } 379 *p++ = num; 380 } else if (*p1 == 'x' && 381 strchr(hx, p1[1]) && strchr(hx, p1[2])) { 382 p1++; 383 c = *p1++; 384 if (c > '9') 385 c = (c - '7') & 0x0f; 386 else 387 c -= '0'; 388 num = c << 4; 389 c = *p1++; 390 if (c > '9') 391 c = (c-'7')&0x0f; 392 else 393 c -= '0'; 394 num += c; 395 *p++ = num; 396 } else 397 *p++ = *p1++; 398 p2 = p; 399 while (*p1) 400 *p2++ = *p1++; 401 *p2 = '\0'; 402 } 403 return s; 404}