1// SPDX-License-Identifier: GPL-2.0
2#include <linux/ctype.h>
3#include "spk_types.h"
4#include "spk_priv.h"
5#include "speakup.h"
6
7static struct st_var_header var_headers[] = {
8 { "version", VERSION, VAR_PROC, NULL, NULL },
9 { "synth_name", SYNTH, VAR_PROC, NULL, NULL },
10 { "keymap", KEYMAP, VAR_PROC, NULL, NULL },
11 { "silent", SILENT, VAR_PROC, NULL, NULL },
12 { "punc_some", PUNC_SOME, VAR_PROC, NULL, NULL },
13 { "punc_most", PUNC_MOST, VAR_PROC, NULL, NULL },
14 { "punc_all", PUNC_ALL, VAR_PROC, NULL, NULL },
15 { "delimiters", DELIM, VAR_PROC, NULL, NULL },
16 { "repeats", REPEATS, VAR_PROC, NULL, NULL },
17 { "ex_num", EXNUMBER, VAR_PROC, NULL, NULL },
18 { "characters", CHARS, VAR_PROC, NULL, NULL },
19 { "synth_direct", SYNTH_DIRECT, VAR_PROC, NULL, NULL },
20 { "caps_start", CAPS_START, VAR_STRING, spk_str_caps_start, NULL },
21 { "caps_stop", CAPS_STOP, VAR_STRING, spk_str_caps_stop, NULL },
22 { "delay_time", DELAY, VAR_TIME, NULL, NULL },
23 { "trigger_time", TRIGGER, VAR_TIME, NULL, NULL },
24 { "jiffy_delta", JIFFY, VAR_TIME, NULL, NULL },
25 { "full_time", FULL, VAR_TIME, NULL, NULL },
26 { "flush_time", FLUSH, VAR_TIME, NULL, NULL },
27 { "spell_delay", SPELL_DELAY, VAR_NUM, &spk_spell_delay, NULL },
28 { "bleeps", BLEEPS, VAR_NUM, &spk_bleeps, NULL },
29 { "attrib_bleep", ATTRIB_BLEEP, VAR_NUM, &spk_attrib_bleep, NULL },
30 { "bleep_time", BLEEP_TIME, VAR_TIME, &spk_bleep_time, NULL },
31 { "cursor_time", CURSOR_TIME, VAR_TIME, NULL, NULL },
32 { "punc_level", PUNC_LEVEL, VAR_NUM, &spk_punc_level, NULL },
33 { "reading_punc", READING_PUNC, VAR_NUM, &spk_reading_punc, NULL },
34 { "say_control", SAY_CONTROL, VAR_NUM, &spk_say_ctrl, NULL },
35 { "say_word_ctl", SAY_WORD_CTL, VAR_NUM, &spk_say_word_ctl, NULL },
36 { "no_interrupt", NO_INTERRUPT, VAR_NUM, &spk_no_intr, NULL },
37 { "key_echo", KEY_ECHO, VAR_NUM, &spk_key_echo, NULL },
38 { "bell_pos", BELL_POS, VAR_NUM, &spk_bell_pos, NULL },
39 { "rate", RATE, VAR_NUM, NULL, NULL },
40 { "pitch", PITCH, VAR_NUM, NULL, NULL },
41 { "inflection", INFLECTION, VAR_NUM, NULL, NULL },
42 { "vol", VOL, VAR_NUM, NULL, NULL },
43 { "tone", TONE, VAR_NUM, NULL, NULL },
44 { "punct", PUNCT, VAR_NUM, NULL, NULL },
45 { "voice", VOICE, VAR_NUM, NULL, NULL },
46 { "freq", FREQUENCY, VAR_NUM, NULL, NULL },
47 { "lang", LANG, VAR_NUM, NULL, NULL },
48 { "chartab", CHARTAB, VAR_PROC, NULL, NULL },
49 { "direct", DIRECT, VAR_NUM, NULL, NULL },
50 { "pause", PAUSE, VAR_STRING, spk_str_pause, NULL },
51 { "cur_phonetic", CUR_PHONETIC, VAR_NUM, &spk_cur_phonetic, NULL },
52};
53
54static struct st_var_header *var_ptrs[MAXVARS] = { NULL, NULL, NULL };
55
56static struct punc_var_t punc_vars[] = {
57 { PUNC_SOME, 1 },
58 { PUNC_MOST, 2 },
59 { PUNC_ALL, 3 },
60 { DELIM, 4 },
61 { REPEATS, 5 },
62 { EXNUMBER, 6 },
63 { -1, -1 },
64};
65
66int spk_chartab_get_value(char *keyword)
67{
68 int value = 0;
69
70 if (!strcmp(keyword, "ALPHA"))
71 value = ALPHA;
72 else if (!strcmp(keyword, "B_CTL"))
73 value = B_CTL;
74 else if (!strcmp(keyword, "WDLM"))
75 value = WDLM;
76 else if (!strcmp(keyword, "A_PUNC"))
77 value = A_PUNC;
78 else if (!strcmp(keyword, "PUNC"))
79 value = PUNC;
80 else if (!strcmp(keyword, "NUM"))
81 value = NUM;
82 else if (!strcmp(keyword, "A_CAP"))
83 value = A_CAP;
84 else if (!strcmp(keyword, "B_CAPSYM"))
85 value = B_CAPSYM;
86 else if (!strcmp(keyword, "B_SYM"))
87 value = B_SYM;
88 return value;
89}
90
91void speakup_register_var(struct var_t *var)
92{
93 static char nothing[2] = "\0";
94 int i;
95 struct st_var_header *p_header;
96
97 BUG_ON(!var || var->var_id < 0 || var->var_id >= MAXVARS);
98 if (!var_ptrs[0]) {
99 for (i = 0; i < MAXVARS; i++) {
100 p_header = &var_headers[i];
101 var_ptrs[p_header->var_id] = p_header;
102 p_header->data = NULL;
103 }
104 }
105 p_header = var_ptrs[var->var_id];
106 if (p_header->data)
107 return;
108 p_header->data = var;
109 switch (p_header->var_type) {
110 case VAR_STRING:
111 spk_set_string_var(page: nothing, var: p_header, len: 0);
112 break;
113 case VAR_NUM:
114 case VAR_TIME:
115 spk_set_num_var(val: 0, var: p_header, how: E_DEFAULT);
116 break;
117 default:
118 break;
119 }
120}
121
122void speakup_unregister_var(enum var_id_t var_id)
123{
124 struct st_var_header *p_header;
125
126 BUG_ON(var_id < 0 || var_id >= MAXVARS);
127 p_header = var_ptrs[var_id];
128 p_header->data = NULL;
129}
130
131struct st_var_header *spk_get_var_header(enum var_id_t var_id)
132{
133 struct st_var_header *p_header;
134
135 if (var_id < 0 || var_id >= MAXVARS)
136 return NULL;
137 p_header = var_ptrs[var_id];
138 if (!p_header->data)
139 return NULL;
140 return p_header;
141}
142EXPORT_SYMBOL_GPL(spk_get_var_header);
143
144struct st_var_header *spk_var_header_by_name(const char *name)
145{
146 int i;
147
148 if (!name)
149 return NULL;
150
151 for (i = 0; i < MAXVARS; i++) {
152 if (strcmp(name, var_ptrs[i]->name) == 0)
153 return var_ptrs[i];
154 }
155 return NULL;
156}
157
158struct var_t *spk_get_var(enum var_id_t var_id)
159{
160 BUG_ON(var_id < 0 || var_id >= MAXVARS);
161 BUG_ON(!var_ptrs[var_id]);
162 return var_ptrs[var_id]->data;
163}
164EXPORT_SYMBOL_GPL(spk_get_var);
165
166struct punc_var_t *spk_get_punc_var(enum var_id_t var_id)
167{
168 struct punc_var_t *rv = NULL;
169 struct punc_var_t *where;
170
171 where = punc_vars;
172 while ((where->var_id != -1) && (!rv)) {
173 if (where->var_id == var_id)
174 rv = where;
175 else
176 where++;
177 }
178 return rv;
179}
180
181/* handlers for setting vars */
182int spk_set_num_var(int input, struct st_var_header *var, int how)
183{
184 int val;
185 int *p_val = var->p_val;
186 char buf[32];
187 char *cp;
188 struct var_t *var_data = var->data;
189
190 if (!var_data)
191 return -ENODATA;
192
193 val = var_data->u.n.value;
194 switch (how) {
195 case E_NEW_DEFAULT:
196 if (input < var_data->u.n.low || input > var_data->u.n.high)
197 return -ERANGE;
198 var_data->u.n.default_val = input;
199 return 0;
200 case E_DEFAULT:
201 val = var_data->u.n.default_val;
202 break;
203 case E_SET:
204 val = input;
205 break;
206 case E_INC:
207 val += input;
208 break;
209 case E_DEC:
210 val -= input;
211 break;
212 }
213
214 if (val < var_data->u.n.low || val > var_data->u.n.high)
215 return -ERANGE;
216
217 var_data->u.n.value = val;
218 if (var->var_type == VAR_TIME && p_val) {
219 *p_val = msecs_to_jiffies(m: val);
220 return 0;
221 }
222 if (p_val)
223 *p_val = val;
224 if (var->var_id == PUNC_LEVEL) {
225 spk_punc_mask = spk_punc_masks[val];
226 }
227 if (var_data->u.n.multiplier != 0)
228 val *= var_data->u.n.multiplier;
229 val += var_data->u.n.offset;
230
231 if (!synth)
232 return 0;
233 if (synth->synth_adjust && synth->synth_adjust(synth, var))
234 return 0;
235 if (var->var_id < FIRST_SYNTH_VAR)
236 return 0;
237
238 if (!var_data->u.n.synth_fmt)
239 return 0;
240 if (var->var_id == PITCH)
241 cp = spk_pitch_buff;
242 else
243 cp = buf;
244 if (!var_data->u.n.out_str)
245 sprintf(buf: cp, fmt: var_data->u.n.synth_fmt, (int)val);
246 else
247 sprintf(buf: cp, fmt: var_data->u.n.synth_fmt,
248 var_data->u.n.out_str[val]);
249 synth_printf(buf: "%s", cp);
250 return 0;
251}
252EXPORT_SYMBOL_GPL(spk_set_num_var);
253
254int spk_set_string_var(const char *page, struct st_var_header *var, int len)
255{
256 struct var_t *var_data = var->data;
257
258 if (!var_data)
259 return -ENODATA;
260 if (len > MAXVARLEN)
261 return -E2BIG;
262 if (!len) {
263 if (!var_data->u.s.default_val)
264 return 0;
265 if (!var->p_val)
266 var->p_val = var_data->u.s.default_val;
267 if (var->p_val != var_data->u.s.default_val)
268 strcpy(p: (char *)var->p_val, q: var_data->u.s.default_val);
269 return -ERESTART;
270 } else if (var->p_val) {
271 strcpy(p: (char *)var->p_val, q: page);
272 } else {
273 return -E2BIG;
274 }
275 return 0;
276}
277
278/*
279 * spk_set_mask_bits sets or clears the punc/delim/repeat bits,
280 * if input is null uses the defaults.
281 * values for how: 0 clears bits of chars supplied,
282 * 1 clears allk, 2 sets bits for chars
283 */
284int spk_set_mask_bits(const char *input, const int which, const int how)
285{
286 u_char *cp;
287 short mask = spk_punc_info[which].mask;
288
289 if (how & 1) {
290 for (cp = (u_char *)spk_punc_info[3].value; *cp; cp++)
291 spk_chartab[*cp] &= ~mask;
292 }
293 cp = (u_char *)input;
294 if (!cp) {
295 cp = spk_punc_info[which].value;
296 } else {
297 for (; *cp; cp++) {
298 if (*cp < SPACE)
299 break;
300 if (mask < PUNC) {
301 if (!(spk_chartab[*cp] & PUNC))
302 break;
303 } else if (spk_chartab[*cp] & B_NUM) {
304 break;
305 }
306 }
307 if (*cp)
308 return -EINVAL;
309 cp = (u_char *)input;
310 }
311 if (how & 2) {
312 for (; *cp; cp++)
313 if (*cp > SPACE)
314 spk_chartab[*cp] |= mask;
315 } else {
316 for (; *cp; cp++)
317 if (*cp > SPACE)
318 spk_chartab[*cp] &= ~mask;
319 }
320 return 0;
321}
322
323char *spk_strlwr(char *s)
324{
325 char *p;
326
327 if (!s)
328 return NULL;
329
330 for (p = s; *p; p++)
331 *p = tolower(*p);
332 return s;
333}
334
335char *spk_s2uchar(char *start, char *dest)
336{
337 int val;
338
339 /* Do not replace with kstrtoul: here we need start to be updated */
340 val = simple_strtoul(skip_spaces(start), &start, 10);
341 if (*start == ',')
342 start++;
343 *dest = (u_char)val;
344 return start;
345}
346

source code of linux/drivers/accessibility/speakup/varhandlers.c