drivers/staging/speakup/varhandlers.c

   1 #include <linux/ctype.h>
   2 #include "spk_types.h"
   3 #include "spk_priv.h"
   4 #include "speakup.h"
   5
   6 static 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, spk_str_caps_start, NULL },
  20         { "caps_stop", CAPS_STOP, VAR_STRING, spk_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, &spk_spell_delay, NULL },
  26         { "bleeps", BLEEPS, VAR_NUM, &spk_bleeps, NULL },
  27         { "attrib_bleep", ATTRIB_BLEEP, VAR_NUM, &spk_attrib_bleep, NULL },
  28         { "bleep_time", BLEEP_TIME, VAR_TIME, &spk_bleep_time, NULL },
  29         { "cursor_time", CURSOR_TIME, VAR_TIME, NULL, NULL },
  30         { "punc_level", PUNC_LEVEL, VAR_NUM, &spk_punc_level, NULL },
  31         { "reading_punc", READING_PUNC, VAR_NUM, &spk_reading_punc, NULL },
  32         { "say_control", SAY_CONTROL, VAR_NUM, &spk_say_ctrl, NULL },
  33         { "say_word_ctl", SAY_WORD_CTL, VAR_NUM, &spk_say_word_ctl, NULL },
  34         { "no_interrupt", NO_INTERRUPT, VAR_NUM, &spk_no_intr, NULL },
  35         { "key_echo", KEY_ECHO, VAR_NUM, &spk_key_echo, NULL },
  36         { "bell_pos", BELL_POS, VAR_NUM, &spk_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
  49 static struct st_var_header *var_ptrs[MAXVARS] = { NULL, NULL, NULL };
  50
  51 static 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
  61 int spk_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
  86 void 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                 spk_set_string_var(nothing, p_header, 0);
 107                 break;
 108         case VAR_NUM:
 109         case VAR_TIME:
 110                 spk_set_num_var(0, p_header, E_DEFAULT);
 111                 break;
 112         default:
 113                 break;
 114         }
 115 }
 116
 117 void speakup_unregister_var(enum var_id_t var_id)
 118 {
 119         struct st_var_header *p_header;
 120
 121         BUG_ON(var_id < 0 || var_id >= MAXVARS);
 122         p_header = var_ptrs[var_id];
 123         p_header->data = NULL;
 124 }
 125
 126 struct st_var_header *spk_get_var_header(enum var_id_t var_id)
 127 {
 128         struct st_var_header *p_header;
 129
 130         if (var_id < 0 || var_id >= MAXVARS)
 131                 return NULL;
 132         p_header = var_ptrs[var_id];
 133         if (p_header->data == NULL)
 134                 return NULL;
 135         return p_header;
 136 }
 137
 138 struct st_var_header *spk_var_header_by_name(const char *name)
 139 {
 140         int i;
 141
 142         if (!name)
 143                 return NULL;
 144
 145         for (i = 0; i < MAXVARS; i++) {
 146                 if (strcmp(name, var_ptrs[i]->name) == 0)
 147                         return var_ptrs[i];
 148         }
 149         return NULL;
 150 }
 151
 152 struct var_t *spk_get_var(enum var_id_t var_id)
 153 {
 154         BUG_ON(var_id < 0 || var_id >= MAXVARS);
 155         BUG_ON(!var_ptrs[var_id]);
 156         return var_ptrs[var_id]->data;
 157 }
 158 EXPORT_SYMBOL_GPL(spk_get_var);
 159
 160 struct punc_var_t *spk_get_punc_var(enum var_id_t var_id)
 161 {
 162         struct punc_var_t *rv = NULL;
 163         struct punc_var_t *where;
 164
 165         where = punc_vars;
 166         while ((where->var_id != -1) && (rv == NULL)) {
 167                 if (where->var_id == var_id)
 168                         rv = where;
 169                 else
 170                         where++;
 171         }
 172         return rv;
 173 }
 174
 175 /* handlers for setting vars */
 176 int spk_set_num_var(int input, struct st_var_header *var, int how)
 177 {
 178         int val;
 179         short ret = 0;
 180         int *p_val = var->p_val;
 181         int l;
 182         char buf[32];
 183         char *cp;
 184         struct var_t *var_data = var->data;
 185
 186         if (var_data == NULL)
 187                 return -ENODATA;
 188
 189         if (how == E_NEW_DEFAULT) {
 190                 if (input < var_data->u.n.low || input > var_data->u.n.high)
 191                         return -ERANGE;
 192                 var_data->u.n.default_val = input;
 193                 return 0;
 194         }
 195         if (how == E_DEFAULT) {
 196                 val = var_data->u.n.default_val;
 197                 ret = -ERESTART;
 198         } else {
 199                 if (how == E_SET)
 200                         val = input;
 201                 else
 202                         val = var_data->u.n.value;
 203                 if (how == E_INC)
 204                         val += input;
 205                 else if (how == E_DEC)
 206                         val -= input;
 207                 if (val < var_data->u.n.low || val > var_data->u.n.high)
 208                         return -ERANGE;
 209         }
 210         var_data->u.n.value = val;
 211         if (var->var_type == VAR_TIME && p_val != NULL) {
 212                 *p_val = msecs_to_jiffies(val);
 213                 return ret;
 214         }
 215         if (p_val != NULL)
 216                 *p_val = val;
 217         if (var->var_id == PUNC_LEVEL) {
 218                 spk_punc_mask = spk_punc_masks[val];
 219                 return ret;
 220         }
 221         if (var_data->u.n.multiplier != 0)
 222                 val *= var_data->u.n.multiplier;
 223         val += var_data->u.n.offset;
 224         if (var->var_id < FIRST_SYNTH_VAR || synth == NULL)
 225                 return ret;
 226         if (synth->synth_adjust != NULL) {
 227                 int status = synth->synth_adjust(var);
 228
 229                 return (status != 0) ? status : ret;
 230         }
 231         if (!var_data->u.n.synth_fmt)
 232                 return ret;
 233         if (var->var_id == PITCH)
 234                 cp = spk_pitch_buff;
 235         else
 236                 cp = buf;
 237         if (!var_data->u.n.out_str)
 238                 l = sprintf(cp, var_data->u.n.synth_fmt, (int)val);
 239         else
 240                 l = sprintf(cp,
 241                         var_data->u.n.synth_fmt, var_data->u.n.out_str[val]);
 242         synth_printf("%s", cp);
 243         return ret;
 244 }
 245
 246 int spk_set_string_var(const char *page, struct st_var_header *var, int len)
 247 {
 248         struct var_t *var_data = var->data;
 249
 250         if (var_data == NULL)
 251                 return -ENODATA;
 252         if (len > MAXVARLEN)
 253                 return -E2BIG;
 254         if (!len) {
 255                 if (!var_data->u.s.default_val)
 256                         return 0;
 257                 if (!var->p_val)
 258                         var->p_val = var_data->u.s.default_val;
 259                 if (var->p_val != var_data->u.s.default_val)
 260                         strcpy((char *)var->p_val, var_data->u.s.default_val);
 261                 return -ERESTART;
 262         } else if (var->p_val)
 263                 strcpy((char *)var->p_val, page);
 264         else
 265                 return -E2BIG;
 266         return 0;
 267 }
 268
 269 /* spk_set_mask_bits sets or clears the punc/delim/repeat bits,
 270  * if input is null uses the defaults.
 271  * values for how: 0 clears bits of chars supplied,
 272  * 1 clears allk, 2 sets bits for chars */
 273 int spk_set_mask_bits(const char *input, const int which, const int how)
 274 {
 275         u_char *cp;
 276         short mask = spk_punc_info[which].mask;
 277
 278         if (how&1) {
 279                 for (cp = (u_char *)spk_punc_info[3].value; *cp; cp++)
 280                         spk_chartab[*cp] &= ~mask;
 281         }
 282         cp = (u_char *)input;
 283         if (!cp)
 284                 cp = spk_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
 311 char *spk_strlwr(char *s)
 312 {
 313         char *p;
 314
 315         if (s == NULL)
 316                 return NULL;
 317
 318         for (p = s; *p; p++)
 319                 *p = tolower(*p);
 320         return s;
 321 }
 322
 323 char *spk_s2uchar(char *start, char *dest)
 324 {
 325         int val = 0;
 326
 327         val = simple_strtoul(skip_spaces(start), &start, 10);
 328         if (*start == ',')
 329                 start++;
 330         *dest = (u_char)val;
 331         return start;
 332 }