diff options
Diffstat (limited to 'drivers/accessibility/speakup/varhandlers.c')
| -rw-r--r-- | drivers/accessibility/speakup/varhandlers.c | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/drivers/accessibility/speakup/varhandlers.c b/drivers/accessibility/speakup/varhandlers.c new file mode 100644 index 000000000000..d7f6bec7ff06 --- /dev/null +++ b/drivers/accessibility/speakup/varhandlers.c @@ -0,0 +1,339 @@ +// 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 }, + { "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; +} + +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]; + return 0; + } + if (var_data->u.n.multiplier != 0) + val *= var_data->u.n.multiplier; + val += var_data->u.n.offset; + if (var->var_id < FIRST_SYNTH_VAR || !synth) + return 0; + if (synth->synth_adjust) + return synth->synth_adjust(var); + + 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; +} + +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; +} |