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path: root/drivers/accessibility/speakup/varhandlers.c
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-rw-r--r--drivers/accessibility/speakup/varhandlers.c344
1 files changed, 344 insertions, 0 deletions
diff --git a/drivers/accessibility/speakup/varhandlers.c b/drivers/accessibility/speakup/varhandlers.c
new file mode 100644
index 000000000..e1c9f42e3
--- /dev/null
+++ b/drivers/accessibility/speakup/varhandlers.c
@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/ctype.h>
+#include "spk_types.h"
+#include "spk_priv.h"
+#include "speakup.h"
+
+static struct st_var_header var_headers[] = {
+ { "version", VERSION, VAR_PROC, NULL, NULL },
+ { "synth_name", SYNTH, VAR_PROC, NULL, NULL },
+ { "keymap", KEYMAP, VAR_PROC, NULL, NULL },
+ { "silent", SILENT, VAR_PROC, NULL, NULL },
+ { "punc_some", PUNC_SOME, VAR_PROC, NULL, NULL },
+ { "punc_most", PUNC_MOST, VAR_PROC, NULL, NULL },
+ { "punc_all", PUNC_ALL, VAR_PROC, NULL, NULL },
+ { "delimiters", DELIM, VAR_PROC, NULL, NULL },
+ { "repeats", REPEATS, VAR_PROC, NULL, NULL },
+ { "ex_num", EXNUMBER, VAR_PROC, NULL, NULL },
+ { "characters", CHARS, VAR_PROC, NULL, NULL },
+ { "synth_direct", SYNTH_DIRECT, VAR_PROC, NULL, NULL },
+ { "caps_start", CAPS_START, VAR_STRING, spk_str_caps_start, NULL },
+ { "caps_stop", CAPS_STOP, VAR_STRING, spk_str_caps_stop, NULL },
+ { "delay_time", DELAY, VAR_TIME, NULL, NULL },
+ { "trigger_time", TRIGGER, VAR_TIME, NULL, NULL },
+ { "jiffy_delta", JIFFY, VAR_TIME, NULL, NULL },
+ { "full_time", FULL, VAR_TIME, NULL, NULL },
+ { "flush_time", FLUSH, VAR_TIME, NULL, NULL },
+ { "spell_delay", SPELL_DELAY, VAR_NUM, &spk_spell_delay, NULL },
+ { "bleeps", BLEEPS, VAR_NUM, &spk_bleeps, NULL },
+ { "attrib_bleep", ATTRIB_BLEEP, VAR_NUM, &spk_attrib_bleep, NULL },
+ { "bleep_time", BLEEP_TIME, VAR_TIME, &spk_bleep_time, NULL },
+ { "cursor_time", CURSOR_TIME, VAR_TIME, NULL, NULL },
+ { "punc_level", PUNC_LEVEL, VAR_NUM, &spk_punc_level, NULL },
+ { "reading_punc", READING_PUNC, VAR_NUM, &spk_reading_punc, NULL },
+ { "say_control", SAY_CONTROL, VAR_NUM, &spk_say_ctrl, NULL },
+ { "say_word_ctl", SAY_WORD_CTL, VAR_NUM, &spk_say_word_ctl, NULL },
+ { "no_interrupt", NO_INTERRUPT, VAR_NUM, &spk_no_intr, NULL },
+ { "key_echo", KEY_ECHO, VAR_NUM, &spk_key_echo, NULL },
+ { "bell_pos", BELL_POS, VAR_NUM, &spk_bell_pos, NULL },
+ { "rate", RATE, VAR_NUM, NULL, NULL },
+ { "pitch", PITCH, VAR_NUM, NULL, NULL },
+ { "inflection", INFLECTION, VAR_NUM, NULL, NULL },
+ { "vol", VOL, VAR_NUM, NULL, NULL },
+ { "tone", TONE, VAR_NUM, NULL, NULL },
+ { "punct", PUNCT, VAR_NUM, NULL, NULL },
+ { "voice", VOICE, VAR_NUM, NULL, NULL },
+ { "freq", FREQUENCY, VAR_NUM, NULL, NULL },
+ { "lang", LANG, VAR_NUM, NULL, NULL },
+ { "chartab", CHARTAB, VAR_PROC, NULL, NULL },
+ { "direct", DIRECT, VAR_NUM, NULL, NULL },
+ { "pause", PAUSE, VAR_STRING, spk_str_pause, NULL },
+};
+
+static struct st_var_header *var_ptrs[MAXVARS] = { NULL, NULL, NULL };
+
+static struct punc_var_t punc_vars[] = {
+ { PUNC_SOME, 1 },
+ { PUNC_MOST, 2 },
+ { PUNC_ALL, 3 },
+ { DELIM, 4 },
+ { REPEATS, 5 },
+ { EXNUMBER, 6 },
+ { -1, -1 },
+};
+
+int spk_chartab_get_value(char *keyword)
+{
+ int value = 0;
+
+ if (!strcmp(keyword, "ALPHA"))
+ value = ALPHA;
+ else if (!strcmp(keyword, "B_CTL"))
+ value = B_CTL;
+ else if (!strcmp(keyword, "WDLM"))
+ value = WDLM;
+ else if (!strcmp(keyword, "A_PUNC"))
+ value = A_PUNC;
+ else if (!strcmp(keyword, "PUNC"))
+ value = PUNC;
+ else if (!strcmp(keyword, "NUM"))
+ value = NUM;
+ else if (!strcmp(keyword, "A_CAP"))
+ value = A_CAP;
+ else if (!strcmp(keyword, "B_CAPSYM"))
+ value = B_CAPSYM;
+ else if (!strcmp(keyword, "B_SYM"))
+ value = B_SYM;
+ return value;
+}
+
+void speakup_register_var(struct var_t *var)
+{
+ static char nothing[2] = "\0";
+ int i;
+ struct st_var_header *p_header;
+
+ BUG_ON(!var || var->var_id < 0 || var->var_id >= MAXVARS);
+ if (!var_ptrs[0]) {
+ for (i = 0; i < MAXVARS; i++) {
+ p_header = &var_headers[i];
+ var_ptrs[p_header->var_id] = p_header;
+ p_header->data = NULL;
+ }
+ }
+ p_header = var_ptrs[var->var_id];
+ if (p_header->data)
+ return;
+ p_header->data = var;
+ switch (p_header->var_type) {
+ case VAR_STRING:
+ spk_set_string_var(nothing, p_header, 0);
+ break;
+ case VAR_NUM:
+ case VAR_TIME:
+ spk_set_num_var(0, p_header, E_DEFAULT);
+ break;
+ default:
+ break;
+ }
+}
+
+void speakup_unregister_var(enum var_id_t var_id)
+{
+ struct st_var_header *p_header;
+
+ BUG_ON(var_id < 0 || var_id >= MAXVARS);
+ p_header = var_ptrs[var_id];
+ p_header->data = NULL;
+}
+
+struct st_var_header *spk_get_var_header(enum var_id_t var_id)
+{
+ struct st_var_header *p_header;
+
+ if (var_id < 0 || var_id >= MAXVARS)
+ return NULL;
+ p_header = var_ptrs[var_id];
+ if (!p_header->data)
+ return NULL;
+ return p_header;
+}
+EXPORT_SYMBOL_GPL(spk_get_var_header);
+
+struct st_var_header *spk_var_header_by_name(const char *name)
+{
+ int i;
+
+ if (!name)
+ return NULL;
+
+ for (i = 0; i < MAXVARS; i++) {
+ if (strcmp(name, var_ptrs[i]->name) == 0)
+ return var_ptrs[i];
+ }
+ return NULL;
+}
+
+struct var_t *spk_get_var(enum var_id_t var_id)
+{
+ BUG_ON(var_id < 0 || var_id >= MAXVARS);
+ BUG_ON(!var_ptrs[var_id]);
+ return var_ptrs[var_id]->data;
+}
+EXPORT_SYMBOL_GPL(spk_get_var);
+
+struct punc_var_t *spk_get_punc_var(enum var_id_t var_id)
+{
+ struct punc_var_t *rv = NULL;
+ struct punc_var_t *where;
+
+ where = punc_vars;
+ while ((where->var_id != -1) && (!rv)) {
+ if (where->var_id == var_id)
+ rv = where;
+ else
+ where++;
+ }
+ return rv;
+}
+
+/* handlers for setting vars */
+int spk_set_num_var(int input, struct st_var_header *var, int how)
+{
+ int val;
+ int *p_val = var->p_val;
+ char buf[32];
+ char *cp;
+ struct var_t *var_data = var->data;
+
+ if (!var_data)
+ return -ENODATA;
+
+ val = var_data->u.n.value;
+ switch (how) {
+ case E_NEW_DEFAULT:
+ if (input < var_data->u.n.low || input > var_data->u.n.high)
+ return -ERANGE;
+ var_data->u.n.default_val = input;
+ return 0;
+ case E_DEFAULT:
+ val = var_data->u.n.default_val;
+ break;
+ case E_SET:
+ val = input;
+ break;
+ case E_INC:
+ val += input;
+ break;
+ case E_DEC:
+ val -= input;
+ break;
+ }
+
+ if (val < var_data->u.n.low || val > var_data->u.n.high)
+ return -ERANGE;
+
+ var_data->u.n.value = val;
+ if (var->var_type == VAR_TIME && p_val) {
+ *p_val = msecs_to_jiffies(val);
+ return 0;
+ }
+ if (p_val)
+ *p_val = val;
+ if (var->var_id == PUNC_LEVEL) {
+ spk_punc_mask = spk_punc_masks[val];
+ }
+ if (var_data->u.n.multiplier != 0)
+ val *= var_data->u.n.multiplier;
+ val += var_data->u.n.offset;
+
+ if (!synth)
+ return 0;
+ if (synth->synth_adjust && synth->synth_adjust(synth, var))
+ return 0;
+ if (var->var_id < FIRST_SYNTH_VAR)
+ return 0;
+
+ if (!var_data->u.n.synth_fmt)
+ return 0;
+ if (var->var_id == PITCH)
+ cp = spk_pitch_buff;
+ else
+ cp = buf;
+ if (!var_data->u.n.out_str)
+ sprintf(cp, var_data->u.n.synth_fmt, (int)val);
+ else
+ sprintf(cp, var_data->u.n.synth_fmt,
+ var_data->u.n.out_str[val]);
+ synth_printf("%s", cp);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(spk_set_num_var);
+
+int spk_set_string_var(const char *page, struct st_var_header *var, int len)
+{
+ struct var_t *var_data = var->data;
+
+ if (!var_data)
+ return -ENODATA;
+ if (len > MAXVARLEN)
+ return -E2BIG;
+ if (!len) {
+ if (!var_data->u.s.default_val)
+ return 0;
+ if (!var->p_val)
+ var->p_val = var_data->u.s.default_val;
+ if (var->p_val != var_data->u.s.default_val)
+ strcpy((char *)var->p_val, var_data->u.s.default_val);
+ return -ERESTART;
+ } else if (var->p_val) {
+ strcpy((char *)var->p_val, page);
+ } else {
+ return -E2BIG;
+ }
+ return 0;
+}
+
+/*
+ * spk_set_mask_bits sets or clears the punc/delim/repeat bits,
+ * if input is null uses the defaults.
+ * values for how: 0 clears bits of chars supplied,
+ * 1 clears allk, 2 sets bits for chars
+ */
+int spk_set_mask_bits(const char *input, const int which, const int how)
+{
+ u_char *cp;
+ short mask = spk_punc_info[which].mask;
+
+ if (how & 1) {
+ for (cp = (u_char *)spk_punc_info[3].value; *cp; cp++)
+ spk_chartab[*cp] &= ~mask;
+ }
+ cp = (u_char *)input;
+ if (!cp) {
+ cp = spk_punc_info[which].value;
+ } else {
+ for (; *cp; cp++) {
+ if (*cp < SPACE)
+ break;
+ if (mask < PUNC) {
+ if (!(spk_chartab[*cp] & PUNC))
+ break;
+ } else if (spk_chartab[*cp] & B_NUM) {
+ break;
+ }
+ }
+ if (*cp)
+ return -EINVAL;
+ cp = (u_char *)input;
+ }
+ if (how & 2) {
+ for (; *cp; cp++)
+ if (*cp > SPACE)
+ spk_chartab[*cp] |= mask;
+ } else {
+ for (; *cp; cp++)
+ if (*cp > SPACE)
+ spk_chartab[*cp] &= ~mask;
+ }
+ return 0;
+}
+
+char *spk_strlwr(char *s)
+{
+ char *p;
+
+ if (!s)
+ return NULL;
+
+ for (p = s; *p; p++)
+ *p = tolower(*p);
+ return s;
+}
+
+char *spk_s2uchar(char *start, char *dest)
+{
+ int val;
+
+ /* Do not replace with kstrtoul: here we need start to be updated */
+ val = simple_strtoul(skip_spaces(start), &start, 10);
+ if (*start == ',')
+ start++;
+ *dest = (u_char)val;
+ return start;
+}