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