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         return;
 116 }
 117
 118 void 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
 126 struct st_var_header *spk_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
 137 struct st_var_header *spk_var_header_by_name(const char *name)
 138 {
 139         int i;
 140
 141         if (!name)
 142                 return NULL;
 143
 144         for (i = 0; i < MAXVARS; i++) {
 145                 if (strcmp(name, var_ptrs[i]->name) == 0)
 146                         return var_ptrs[i];
 147         }
 148         return NULL;
 149 }
 150
 151 struct var_t *spk_get_var(enum var_id_t var_id)
 152 {
 153         BUG_ON(var_id < 0 || var_id >= MAXVARS);
 154         BUG_ON(!var_ptrs[var_id]);
 155         return var_ptrs[var_id]->data;
 156 }
 157 EXPORT_SYMBOL_GPL(spk_get_var);
 158
 159 struct punc_var_t *spk_get_punc_var(enum var_id_t var_id)
 160 {
 161         struct punc_var_t *rv = NULL;
 162         struct punc_var_t *where;
 163
 164         where = punc_vars;
 165         while ((where->var_id != -1) && (rv == NULL)) {
 166                 if (where->var_id == var_id)
 167                         rv = where;
 168                 else
 169                         where++;
 170         }
 171         return rv;
 172 }
 173
 174 /* handlers for setting vars */
 175 int spk_set_num_var(int input, struct st_var_header *var, int how)
 176 {
 177         int val;
 178         short ret = 0;
 179         int *p_val = var->p_val;
 180         int l;
 181         char buf[32];
 182         char *cp;
 183         struct var_t *var_data = var->data;
 184
 185         if (var_data == NULL)
 186                 return -ENODATA;
 187
 188         if (how == E_NEW_DEFAULT) {
 189                 if (input < var_data->u.n.low || input > var_data->u.n.high)
 190                         return -ERANGE;
 191                 var_data->u.n.default_val = input;
 192                 return 0;
 193         }
 194         if (how == E_DEFAULT) {
 195                 val = var_data->u.n.default_val;
 196                 ret = -ERESTART;
 197         } else {
 198                 if (how == E_SET)
 199                         val = input;
 200                 else
 201                         val = var_data->u.n.value;
 202                 if (how == E_INC)
 203                         val += input;
 204                 else if (how == E_DEC)
 205                         val -= input;
 206                 if (val < var_data->u.n.low || val > var_data->u.n.high)
 207                         return -ERANGE;
 208         }
 209         var_data->u.n.value = val;
 210         if (var->var_type == VAR_TIME && p_val != NULL) {
 211                 *p_val = msecs_to_jiffies(val);
 212                 return ret;
 213         }
 214         if (p_val != NULL)
 215                 *p_val = val;
 216         if (var->var_id == PUNC_LEVEL) {
 217                 spk_punc_mask = spk_punc_masks[val];
 218                 return ret;
 219         }
 220         if (var_data->u.n.multiplier != 0)
 221                 val *= var_data->u.n.multiplier;
 222         val += var_data->u.n.offset;
 223         if (var->var_id < FIRST_SYNTH_VAR || synth == NULL)
 224                 return ret;
 225         if (synth->synth_adjust != NULL) {
 226                 int status = synth->synth_adjust(var);
 227                 return (status != 0) ? status : ret;
 228         }
 229         if (!var_data->u.n.synth_fmt)
 230                 return ret;
 231         if (var->var_id == PITCH)
 232                 cp = spk_pitch_buff;
 233         else
 234                 cp = buf;
 235         if (!var_data->u.n.out_str)
 236                 l = sprintf(cp, var_data->u.n.synth_fmt, (int)val);
 237         else
 238                 l = sprintf(cp,
 239                         var_data->u.n.synth_fmt, var_data->u.n.out_str[val]);
 240         synth_printf("%s", cp);
 241         return ret;
 242 }
 243
 244 int spk_set_string_var(const char *page, struct st_var_header *var, int len)
 245 {
 246         struct var_t *var_data = var->data;
 247
 248         if (var_data == NULL)
 249                 return -ENODATA;
 250         if (len > MAXVARLEN)
 251                 return -E2BIG;
 252         if (!len) {
 253                 if (!var_data->u.s.default_val)
 254                         return 0;
 255                 if (!var->p_val)
 256                         var->p_val = var_data->u.s.default_val;
 257                 if (var->p_val != var_data->u.s.default_val)
 258                         strcpy((char *)var->p_val, var_data->u.s.default_val);
 259                 return -ERESTART;
 260         } else if (var->p_val)
 261                 strcpy((char *)var->p_val, page);
 262         else
 263                 return -E2BIG;
 264         return 0;
 265 }
 266
 267 /* spk_set_mask_bits sets or clears the punc/delim/repeat bits,
 268  * if input is null uses the defaults.
 269  * values for how: 0 clears bits of chars supplied,
 270  * 1 clears allk, 2 sets bits for chars */
 271 int spk_set_mask_bits(const char *input, const int which, const int how)
 272 {
 273         u_char *cp;
 274         short mask = spk_punc_info[which].mask;
 275         if (how&1) {
 276                 for (cp = (u_char *)spk_punc_info[3].value; *cp; cp++)
 277                         spk_chartab[*cp] &= ~mask;
 278         }
 279         cp = (u_char *)input;
 280         if (!cp)
 281                 cp = spk_punc_info[which].value;
 282         else {
 283                 for (; *cp; cp++) {
 284                         if (*cp < SPACE)
 285                                 break;
 286                         if (mask < PUNC) {
 287                                 if (!(spk_chartab[*cp]&PUNC))
 288                                         break;
 289                         } else if (spk_chartab[*cp]&B_NUM)
 290                                 break;
 291                 }
 292                 if (*cp)
 293                         return -EINVAL;
 294                 cp = (u_char *)input;
 295         }
 296         if (how&2) {
 297                 for (; *cp; cp++)
 298                         if (*cp > SPACE)
 299                                 spk_chartab[*cp] |= mask;
 300         } else {
 301                 for (; *cp; cp++)
 302                         if (*cp > SPACE)
 303                                 spk_chartab[*cp] &= ~mask;
 304         }
 305         return 0;
 306 }
 307
 308 char *spk_strlwr(char *s)
 309 {
 310         char *p;
 311         if (s == NULL)
 312                 return NULL;
 313
 314         for (p = s; *p; p++)
 315                 *p = tolower(*p);
 316         return s;
 317 }
 318
 319 char *spk_s2uchar(char *start, char *dest)
 320 {
 321         int val = 0;
 322         val = simple_strtoul(skip_spaces(start), &start, 10);
 323         if (*start == ',')
 324                 start++;
 325         *dest = (u_char)val;
 326         return start;
 327 }