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linuxdebug/drivers/accessibility/speakup/main.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0+
/* speakup.c
* review functions for the speakup screen review package.
* originally written by: Kirk Reiser and Andy Berdan.
*
* extensively modified by David Borowski.
*
** Copyright (C) 1998 Kirk Reiser.
* Copyright (C) 2003 David Borowski.
*/
#include <linux/kernel.h>
#include <linux/vt.h>
#include <linux/tty.h>
#include <linux/mm.h> /* __get_free_page() and friends */
#include <linux/vt_kern.h>
#include <linux/ctype.h>
#include <linux/selection.h>
#include <linux/unistd.h>
#include <linux/jiffies.h>
#include <linux/kthread.h>
#include <linux/keyboard.h> /* for KT_SHIFT */
#include <linux/kbd_kern.h> /* for vc_kbd_* and friends */
#include <linux/input.h>
#include <linux/kmod.h>
/* speakup_*_selection */
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/consolemap.h>
#include <linux/spinlock.h>
#include <linux/notifier.h>
#include <linux/uaccess.h> /* copy_from|to|user() and others */
#include "spk_priv.h"
#include "speakup.h"
#define MAX_DELAY msecs_to_jiffies(500)
#define MINECHOCHAR SPACE
MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
MODULE_AUTHOR("Daniel Drake <dsd@gentoo.org>");
MODULE_DESCRIPTION("Speakup console speech");
MODULE_LICENSE("GPL");
MODULE_VERSION(SPEAKUP_VERSION);
char *synth_name;
module_param_named(synth, synth_name, charp, 0444);
module_param_named(quiet, spk_quiet_boot, bool, 0444);
MODULE_PARM_DESC(synth, "Synth to start if speakup is built in.");
MODULE_PARM_DESC(quiet, "Do not announce when the synthesizer is found.");
special_func spk_special_handler;
short spk_pitch_shift, synth_flags;
static u16 buf[256];
int spk_attrib_bleep, spk_bleeps, spk_bleep_time = 10;
int spk_no_intr, spk_spell_delay;
int spk_key_echo, spk_say_word_ctl;
int spk_say_ctrl, spk_bell_pos;
short spk_punc_mask;
int spk_punc_level, spk_reading_punc;
char spk_str_caps_start[MAXVARLEN + 1] = "\0";
char spk_str_caps_stop[MAXVARLEN + 1] = "\0";
char spk_str_pause[MAXVARLEN + 1] = "\0";
bool spk_paused;
const struct st_bits_data spk_punc_info[] = {
{"none", "", 0},
{"some", "/$%&@", SOME},
{"most", "$%&#()=+*/@^<>|\\", MOST},
{"all", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", PUNC},
{"delimiters", "", B_WDLM},
{"repeats", "()", CH_RPT},
{"extended numeric", "", B_EXNUM},
{"symbols", "", B_SYM},
{NULL, NULL}
};
static char mark_cut_flag;
#define MAX_KEY 160
static u_char *spk_shift_table;
u_char *spk_our_keys[MAX_KEY];
u_char spk_key_buf[600];
const u_char spk_key_defaults[] = {
#include "speakupmap.h"
};
/* cursor track modes, must be ordered same as cursor_msgs in enum msg_index_t */
enum cursor_track {
CT_Off = 0,
CT_On,
CT_Highlight,
CT_Window,
CT_Max,
read_all_mode = CT_Max,
};
/* Speakup Cursor Track Variables */
static enum cursor_track cursor_track = 1, prev_cursor_track = 1;
static struct tty_struct *tty;
static void spkup_write(const u16 *in_buf, int count);
static char *phonetic[] = {
"alfa", "bravo", "charlie", "delta", "echo", "foxtrot", "golf", "hotel",
"india", "juliett", "keelo", "leema", "mike", "november", "oscar",
"papa",
"keh beck", "romeo", "sierra", "tango", "uniform", "victer", "whiskey",
"x ray", "yankee", "zulu"
};
/* array of 256 char pointers (one for each character description)
* initialized to default_chars and user selectable via
* /proc/speakup/characters
*/
char *spk_characters[256];
char *spk_default_chars[256] = {
/*000*/ "null", "^a", "^b", "^c", "^d", "^e", "^f", "^g",
/*008*/ "^h", "^i", "^j", "^k", "^l", "^m", "^n", "^o",
/*016*/ "^p", "^q", "^r", "^s", "^t", "^u", "^v", "^w",
/*024*/ "^x", "^y", "^z", "control", "control", "control", "control",
"control",
/*032*/ "space", "bang!", "quote", "number", "dollar", "percent", "and",
"tick",
/*040*/ "left paren", "right paren", "star", "plus", "comma", "dash",
"dot",
"slash",
/*048*/ "zero", "one", "two", "three", "four", "five", "six", "seven",
"eight", "nine",
/*058*/ "colon", "semmy", "less", "equals", "greater", "question", "at",
/*065*/ "EIGH", "B", "C", "D", "E", "F", "G",
/*072*/ "H", "I", "J", "K", "L", "M", "N", "O",
/*080*/ "P", "Q", "R", "S", "T", "U", "V", "W", "X",
/*089*/ "Y", "ZED", "left bracket", "backslash", "right bracket",
"caret",
"line",
/*096*/ "accent", "a", "b", "c", "d", "e", "f", "g",
/*104*/ "h", "i", "j", "k", "l", "m", "n", "o",
/*112*/ "p", "q", "r", "s", "t", "u", "v", "w",
/*120*/ "x", "y", "zed", "left brace", "bar", "right brace", "tihlduh",
/*127*/ "del", "control", "control", "control", "control", "control",
"control", "control", "control", "control", "control",
/*138*/ "control", "control", "control", "control", "control",
"control", "control", "control", "control", "control",
"control", "control",
/*150*/ "control", "control", "control", "control", "control",
"control", "control", "control", "control", "control",
/*160*/ "nbsp", "inverted bang",
/*162*/ "cents", "pounds", "currency", "yen", "broken bar", "section",
/*168*/ "diaeresis", "copyright", "female ordinal", "double left angle",
/*172*/ "not", "soft hyphen", "registered", "macron",
/*176*/ "degrees", "plus or minus", "super two", "super three",
/*180*/ "acute accent", "micro", "pilcrow", "middle dot",
/*184*/ "cedilla", "super one", "male ordinal", "double right angle",
/*188*/ "one quarter", "one half", "three quarters",
"inverted question",
/*192*/ "A GRAVE", "A ACUTE", "A CIRCUMFLEX", "A TILDE", "A OOMLAUT",
"A RING",
/*198*/ "AE", "C CIDELLA", "E GRAVE", "E ACUTE", "E CIRCUMFLEX",
"E OOMLAUT",
/*204*/ "I GRAVE", "I ACUTE", "I CIRCUMFLEX", "I OOMLAUT", "ETH",
"N TILDE",
/*210*/ "O GRAVE", "O ACUTE", "O CIRCUMFLEX", "O TILDE", "O OOMLAUT",
/*215*/ "multiplied by", "O STROKE", "U GRAVE", "U ACUTE",
"U CIRCUMFLEX",
/*220*/ "U OOMLAUT", "Y ACUTE", "THORN", "sharp s", "a grave",
/*225*/ "a acute", "a circumflex", "a tilde", "a oomlaut", "a ring",
/*230*/ "ae", "c cidella", "e grave", "e acute",
/*234*/ "e circumflex", "e oomlaut", "i grave", "i acute",
"i circumflex",
/*239*/ "i oomlaut", "eth", "n tilde", "o grave", "o acute",
"o circumflex",
/*245*/ "o tilde", "o oomlaut", "divided by", "o stroke", "u grave",
"u acute",
/* 251 */ "u circumflex", "u oomlaut", "y acute", "thorn", "y oomlaut"
};
/* array of 256 u_short (one for each character)
* initialized to default_chartab and user selectable via
* /sys/module/speakup/parameters/chartab
*/
u_short spk_chartab[256];
static u_short default_chartab[256] = {
B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, /* 0-7 */
B_CTL, B_CTL, A_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, /* 8-15 */
B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, /*16-23 */
B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, B_CTL, /* 24-31 */
WDLM, A_PUNC, PUNC, PUNC, PUNC, PUNC, PUNC, A_PUNC, /* !"#$%&' */
PUNC, PUNC, PUNC, PUNC, A_PUNC, A_PUNC, A_PUNC, PUNC, /* ()*+, -./ */
NUM, NUM, NUM, NUM, NUM, NUM, NUM, NUM, /* 01234567 */
NUM, NUM, A_PUNC, PUNC, PUNC, PUNC, PUNC, A_PUNC, /* 89:;<=>? */
PUNC, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, /* @ABCDEFG */
A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, /* HIJKLMNO */
A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, /* PQRSTUVW */
A_CAP, A_CAP, A_CAP, PUNC, PUNC, PUNC, PUNC, PUNC, /* XYZ[\]^_ */
PUNC, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, /* `abcdefg */
ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, /* hijklmno */
ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, /* pqrstuvw */
ALPHA, ALPHA, ALPHA, PUNC, PUNC, PUNC, PUNC, 0, /* xyz{|}~ */
B_CAPSYM, B_CAPSYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, /* 128-134 */
B_SYM, /* 135 */
B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, /* 136-142 */
B_CAPSYM, /* 143 */
B_CAPSYM, B_CAPSYM, B_SYM, B_CAPSYM, B_SYM, B_SYM, B_SYM, /* 144-150 */
B_SYM, /* 151 */
B_SYM, B_SYM, B_CAPSYM, B_CAPSYM, B_SYM, B_SYM, B_SYM, /*152-158 */
B_SYM, /* 159 */
WDLM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_CAPSYM, /* 160-166 */
B_SYM, /* 167 */
B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, /* 168-175 */
B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, /* 176-183 */
B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, B_SYM, /* 184-191 */
A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, /* 192-199 */
A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, /* 200-207 */
A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, B_SYM, /* 208-215 */
A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, A_CAP, ALPHA, /* 216-223 */
ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, /* 224-231 */
ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, /* 232-239 */
ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, B_SYM, /* 240-247 */
ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA, ALPHA /* 248-255 */
};
struct task_struct *speakup_task;
struct bleep spk_unprocessed_sound;
static int spk_keydown;
static u16 spk_lastkey;
static u_char spk_close_press, keymap_flags;
static u_char last_keycode, this_speakup_key;
static u_long last_spk_jiffy;
struct st_spk_t *speakup_console[MAX_NR_CONSOLES];
DEFINE_MUTEX(spk_mutex);
static int keyboard_notifier_call(struct notifier_block *,
unsigned long code, void *param);
static struct notifier_block keyboard_notifier_block = {
.notifier_call = keyboard_notifier_call,
};
static int vt_notifier_call(struct notifier_block *,
unsigned long code, void *param);
static struct notifier_block vt_notifier_block = {
.notifier_call = vt_notifier_call,
};
static unsigned char get_attributes(struct vc_data *vc, u16 *pos)
{
pos = screen_pos(vc, pos - (u16 *)vc->vc_origin, true);
return (scr_readw(pos) & ~vc->vc_hi_font_mask) >> 8;
}
static void speakup_date(struct vc_data *vc)
{
spk_x = spk_cx = vc->state.x;
spk_y = spk_cy = vc->state.y;
spk_pos = spk_cp = vc->vc_pos;
spk_old_attr = spk_attr;
spk_attr = get_attributes(vc, (u_short *)spk_pos);
}
static void bleep(u_short val)
{
static const short vals[] = {
350, 370, 392, 414, 440, 466, 491, 523, 554, 587, 619, 659
};
short freq;
int time = spk_bleep_time;
freq = vals[val % 12];
if (val > 11)
freq *= (1 << (val / 12));
spk_unprocessed_sound.freq = freq;
spk_unprocessed_sound.jiffies = msecs_to_jiffies(time);
spk_unprocessed_sound.active = 1;
/* We can only have 1 active sound at a time. */
}
static void speakup_shut_up(struct vc_data *vc)
{
if (spk_killed)
return;
spk_shut_up |= 0x01;
spk_parked &= 0xfe;
speakup_date(vc);
if (synth)
spk_do_flush();
}
static void speech_kill(struct vc_data *vc)
{
char val = synth->is_alive(synth);
if (val == 0)
return;
/* re-enables synth, if disabled */
if (val == 2 || spk_killed) {
/* dead */
spk_shut_up &= ~0x40;
synth_printf("%s\n", spk_msg_get(MSG_IAM_ALIVE));
} else {
synth_printf("%s\n", spk_msg_get(MSG_YOU_KILLED_SPEAKUP));
spk_shut_up |= 0x40;
}
}
static void speakup_off(struct vc_data *vc)
{
if (spk_shut_up & 0x80) {
spk_shut_up &= 0x7f;
synth_printf("%s\n", spk_msg_get(MSG_HEY_THATS_BETTER));
} else {
spk_shut_up |= 0x80;
synth_printf("%s\n", spk_msg_get(MSG_YOU_TURNED_ME_OFF));
}
speakup_date(vc);
}
static void speakup_parked(struct vc_data *vc)
{
if (spk_parked & 0x80) {
spk_parked = 0;
synth_printf("%s\n", spk_msg_get(MSG_UNPARKED));
} else {
spk_parked |= 0x80;
synth_printf("%s\n", spk_msg_get(MSG_PARKED));
}
}
static void speakup_cut(struct vc_data *vc)
{
static const char err_buf[] = "set selection failed";
int ret;
if (!mark_cut_flag) {
mark_cut_flag = 1;
spk_xs = (u_short)spk_x;
spk_ys = (u_short)spk_y;
spk_sel_cons = vc;
synth_printf("%s\n", spk_msg_get(MSG_MARK));
return;
}
spk_xe = (u_short)spk_x;
spk_ye = (u_short)spk_y;
mark_cut_flag = 0;
synth_printf("%s\n", spk_msg_get(MSG_CUT));
ret = speakup_set_selection(tty);
switch (ret) {
case 0:
break; /* no error */
case -EFAULT:
pr_warn("%sEFAULT\n", err_buf);
break;
case -EINVAL:
pr_warn("%sEINVAL\n", err_buf);
break;
case -ENOMEM:
pr_warn("%sENOMEM\n", err_buf);
break;
}
}
static void speakup_paste(struct vc_data *vc)
{
if (mark_cut_flag) {
mark_cut_flag = 0;
synth_printf("%s\n", spk_msg_get(MSG_MARK_CLEARED));
} else {
synth_printf("%s\n", spk_msg_get(MSG_PASTE));
speakup_paste_selection(tty);
}
}
static void say_attributes(struct vc_data *vc)
{
int fg = spk_attr & 0x0f;
int bg = spk_attr >> 4;
synth_printf("%s", spk_msg_get(MSG_COLORS_START + fg));
if (bg > 7) {
synth_printf(" %s ", spk_msg_get(MSG_ON_BLINKING));
bg -= 8;
} else {
synth_printf(" %s ", spk_msg_get(MSG_ON));
}
synth_printf("%s\n", spk_msg_get(MSG_COLORS_START + bg));
}
/* must be ordered same as edge_msgs in enum msg_index_t */
enum edge {
edge_none = 0,
edge_top,
edge_bottom,
edge_left,
edge_right,
edge_quiet
};
static void announce_edge(struct vc_data *vc, enum edge msg_id)
{
if (spk_bleeps & 1)
bleep(spk_y);
if ((spk_bleeps & 2) && (msg_id < edge_quiet))
synth_printf("%s\n",
spk_msg_get(MSG_EDGE_MSGS_START + msg_id - 1));
}
static void speak_char(u16 ch)
{
char *cp;
struct var_t *direct = spk_get_var(DIRECT);
if (ch >= 0x100 || (direct && direct->u.n.value)) {
if (ch < 0x100 && IS_CHAR(ch, B_CAP)) {
spk_pitch_shift++;
synth_printf("%s", spk_str_caps_start);
}
synth_putwc_s(ch);
if (ch < 0x100 && IS_CHAR(ch, B_CAP))
synth_printf("%s", spk_str_caps_stop);
return;
}
cp = spk_characters[ch];
if (!cp) {
pr_info("%s: cp == NULL!\n", __func__);
return;
}
if (IS_CHAR(ch, B_CAP)) {
spk_pitch_shift++;
synth_printf("%s %s %s",
spk_str_caps_start, cp, spk_str_caps_stop);
} else {
if (*cp == '^') {
cp++;
synth_printf(" %s%s ", spk_msg_get(MSG_CTRL), cp);
} else {
synth_printf(" %s ", cp);
}
}
}
static u16 get_char(struct vc_data *vc, u16 *pos, u_char *attribs)
{
u16 ch = ' ';
if (vc && pos) {
u16 w;
u16 c;
pos = screen_pos(vc, pos - (u16 *)vc->vc_origin, true);
w = scr_readw(pos);
c = w & 0xff;
if (w & vc->vc_hi_font_mask) {
w &= ~vc->vc_hi_font_mask;
c |= 0x100;
}
ch = inverse_translate(vc, c, true);
*attribs = (w & 0xff00) >> 8;
}
return ch;
}
static void say_char(struct vc_data *vc)
{
u16 ch;
spk_old_attr = spk_attr;
ch = get_char(vc, (u_short *)spk_pos, &spk_attr);
if (spk_attr != spk_old_attr) {
if (spk_attrib_bleep & 1)
bleep(spk_y);
if (spk_attrib_bleep & 2)
say_attributes(vc);
}
speak_char(ch);
}
static void say_phonetic_char(struct vc_data *vc)
{
u16 ch;
spk_old_attr = spk_attr;
ch = get_char(vc, (u_short *)spk_pos, &spk_attr);
if (ch <= 0x7f && isalpha(ch)) {
ch &= 0x1f;
synth_printf("%s\n", phonetic[--ch]);
} else {
if (ch < 0x100 && IS_CHAR(ch, B_NUM))
synth_printf("%s ", spk_msg_get(MSG_NUMBER));
speak_char(ch);
}
}
static void say_prev_char(struct vc_data *vc)
{
spk_parked |= 0x01;
if (spk_x == 0) {
announce_edge(vc, edge_left);
return;
}
spk_x--;
spk_pos -= 2;
say_char(vc);
}
static void say_next_char(struct vc_data *vc)
{
spk_parked |= 0x01;
if (spk_x == vc->vc_cols - 1) {
announce_edge(vc, edge_right);
return;
}
spk_x++;
spk_pos += 2;
say_char(vc);
}
/* get_word - will first check to see if the character under the
* reading cursor is a space and if spk_say_word_ctl is true it will
* return the word space. If spk_say_word_ctl is not set it will check to
* see if there is a word starting on the next position to the right
* and return that word if it exists. If it does not exist it will
* move left to the beginning of any previous word on the line or the
* beginning off the line whichever comes first..
*/
static u_long get_word(struct vc_data *vc)
{
u_long cnt = 0, tmpx = spk_x, tmp_pos = spk_pos;
u16 ch;
u16 attr_ch;
u_char temp;
spk_old_attr = spk_attr;
ch = get_char(vc, (u_short *)tmp_pos, &temp);
/* decided to take out the sayword if on a space (mis-information */
if (spk_say_word_ctl && ch == SPACE) {
*buf = '\0';
synth_printf("%s\n", spk_msg_get(MSG_SPACE));
return 0;
} else if (tmpx < vc->vc_cols - 2 &&
(ch == SPACE || ch == 0 || (ch < 0x100 && IS_WDLM(ch))) &&
get_char(vc, (u_short *)tmp_pos + 1, &temp) > SPACE) {
tmp_pos += 2;
tmpx++;
} else {
while (tmpx > 0) {
ch = get_char(vc, (u_short *)tmp_pos - 1, &temp);
if ((ch == SPACE || ch == 0 ||
(ch < 0x100 && IS_WDLM(ch))) &&
get_char(vc, (u_short *)tmp_pos, &temp) > SPACE)
break;
tmp_pos -= 2;
tmpx--;
}
}
attr_ch = get_char(vc, (u_short *)tmp_pos, &spk_attr);
buf[cnt++] = attr_ch;
while (tmpx < vc->vc_cols - 1) {
tmp_pos += 2;
tmpx++;
ch = get_char(vc, (u_short *)tmp_pos, &temp);
if (ch == SPACE || ch == 0 ||
(buf[cnt - 1] < 0x100 && IS_WDLM(buf[cnt - 1]) &&
ch > SPACE))
break;
buf[cnt++] = ch;
}
buf[cnt] = '\0';
return cnt;
}
static void say_word(struct vc_data *vc)
{
u_long cnt = get_word(vc);
u_short saved_punc_mask = spk_punc_mask;
if (cnt == 0)
return;
spk_punc_mask = PUNC;
buf[cnt++] = SPACE;
spkup_write(buf, cnt);
spk_punc_mask = saved_punc_mask;
}
static void say_prev_word(struct vc_data *vc)
{
u_char temp;
u16 ch;
enum edge edge_said = edge_none;
u_short last_state = 0, state = 0;
spk_parked |= 0x01;
if (spk_x == 0) {
if (spk_y == 0) {
announce_edge(vc, edge_top);
return;
}
spk_y--;
spk_x = vc->vc_cols;
edge_said = edge_quiet;
}
while (1) {
if (spk_x == 0) {
if (spk_y == 0) {
edge_said = edge_top;
break;
}
if (edge_said != edge_quiet)
edge_said = edge_left;
if (state > 0)
break;
spk_y--;
spk_x = vc->vc_cols - 1;
} else {
spk_x--;
}
spk_pos -= 2;
ch = get_char(vc, (u_short *)spk_pos, &temp);
if (ch == SPACE || ch == 0)
state = 0;
else if (ch < 0x100 && IS_WDLM(ch))
state = 1;
else
state = 2;
if (state < last_state) {
spk_pos += 2;
spk_x++;
break;
}
last_state = state;
}
if (spk_x == 0 && edge_said == edge_quiet)
edge_said = edge_left;
if (edge_said > edge_none && edge_said < edge_quiet)
announce_edge(vc, edge_said);
say_word(vc);
}
static void say_next_word(struct vc_data *vc)
{
u_char temp;
u16 ch;
enum edge edge_said = edge_none;
u_short last_state = 2, state = 0;
spk_parked |= 0x01;
if (spk_x == vc->vc_cols - 1 && spk_y == vc->vc_rows - 1) {
announce_edge(vc, edge_bottom);
return;
}
while (1) {
ch = get_char(vc, (u_short *)spk_pos, &temp);
if (ch == SPACE || ch == 0)
state = 0;
else if (ch < 0x100 && IS_WDLM(ch))
state = 1;
else
state = 2;
if (state > last_state)
break;
if (spk_x >= vc->vc_cols - 1) {
if (spk_y == vc->vc_rows - 1) {
edge_said = edge_bottom;
break;
}
state = 0;
spk_y++;
spk_x = 0;
edge_said = edge_right;
} else {
spk_x++;
}
spk_pos += 2;
last_state = state;
}
if (edge_said > edge_none)
announce_edge(vc, edge_said);
say_word(vc);
}
static void spell_word(struct vc_data *vc)
{
static char const *delay_str[] = { "", ",", ".", ". .", ". . ." };
u16 *cp = buf;
char *cp1;
char *str_cap = spk_str_caps_stop;
char *last_cap = spk_str_caps_stop;
struct var_t *direct = spk_get_var(DIRECT);
u16 ch;
if (!get_word(vc))
return;
while ((ch = *cp)) {
if (cp != buf)
synth_printf(" %s ", delay_str[spk_spell_delay]);
/* FIXME: Non-latin1 considered as lower case */
if (ch < 0x100 && IS_CHAR(ch, B_CAP)) {
str_cap = spk_str_caps_start;
if (*spk_str_caps_stop)
spk_pitch_shift++;
else /* synth has no pitch */
last_cap = spk_str_caps_stop;
} else {
str_cap = spk_str_caps_stop;
}
if (str_cap != last_cap) {
synth_printf("%s", str_cap);
last_cap = str_cap;
}
if (ch >= 0x100 || (direct && direct->u.n.value)) {
synth_putwc_s(ch);
} else if (this_speakup_key == SPELL_PHONETIC &&
ch <= 0x7f && isalpha(ch)) {
ch &= 0x1f;
cp1 = phonetic[--ch];
synth_printf("%s", cp1);
} else {
cp1 = spk_characters[ch];
if (*cp1 == '^') {
synth_printf("%s", spk_msg_get(MSG_CTRL));
cp1++;
}
synth_printf("%s", cp1);
}
cp++;
}
if (str_cap != spk_str_caps_stop)
synth_printf("%s", spk_str_caps_stop);
}
static int get_line(struct vc_data *vc)
{
u_long tmp = spk_pos - (spk_x * 2);
int i = 0;
u_char tmp2;
spk_old_attr = spk_attr;
spk_attr = get_attributes(vc, (u_short *)spk_pos);
for (i = 0; i < vc->vc_cols; i++) {
buf[i] = get_char(vc, (u_short *)tmp, &tmp2);
tmp += 2;
}
for (--i; i >= 0; i--)
if (buf[i] != SPACE)
break;
return ++i;
}
static void say_line(struct vc_data *vc)
{
int i = get_line(vc);
u16 *cp;
u_short saved_punc_mask = spk_punc_mask;
if (i == 0) {
synth_printf("%s\n", spk_msg_get(MSG_BLANK));
return;
}
buf[i++] = '\n';
if (this_speakup_key == SAY_LINE_INDENT) {
cp = buf;
while (*cp == SPACE)
cp++;
synth_printf("%zd, ", (cp - buf) + 1);
}
spk_punc_mask = spk_punc_masks[spk_reading_punc];
spkup_write(buf, i);
spk_punc_mask = saved_punc_mask;
}
static void say_prev_line(struct vc_data *vc)
{
spk_parked |= 0x01;
if (spk_y == 0) {
announce_edge(vc, edge_top);
return;
}
spk_y--;
spk_pos -= vc->vc_size_row;
say_line(vc);
}
static void say_next_line(struct vc_data *vc)
{
spk_parked |= 0x01;
if (spk_y == vc->vc_rows - 1) {
announce_edge(vc, edge_bottom);
return;
}
spk_y++;
spk_pos += vc->vc_size_row;
say_line(vc);
}
static int say_from_to(struct vc_data *vc, u_long from, u_long to,
int read_punc)
{
int i = 0;
u_char tmp;
u_short saved_punc_mask = spk_punc_mask;
spk_old_attr = spk_attr;
spk_attr = get_attributes(vc, (u_short *)from);
while (from < to) {
buf[i++] = get_char(vc, (u_short *)from, &tmp);
from += 2;
if (i >= vc->vc_size_row)
break;
}
for (--i; i >= 0; i--)
if (buf[i] != SPACE)
break;
buf[++i] = SPACE;
buf[++i] = '\0';
if (i < 1)
return i;
if (read_punc)
spk_punc_mask = spk_punc_info[spk_reading_punc].mask;
spkup_write(buf, i);
if (read_punc)
spk_punc_mask = saved_punc_mask;
return i - 1;
}
static void say_line_from_to(struct vc_data *vc, u_long from, u_long to,
int read_punc)
{
u_long start = vc->vc_origin + (spk_y * vc->vc_size_row);
u_long end = start + (to * 2);
start += from * 2;
if (say_from_to(vc, start, end, read_punc) <= 0)
if (cursor_track != read_all_mode)
synth_printf("%s\n", spk_msg_get(MSG_BLANK));
}
/* Sentence Reading Commands */
static int currsentence;
static int numsentences[2];
static u16 *sentbufend[2];
static u16 *sentmarks[2][10];
static int currbuf;
static int bn;
static u16 sentbuf[2][256];
static int say_sentence_num(int num, int prev)
{
bn = currbuf;
currsentence = num + 1;
if (prev && --bn == -1)
bn = 1;
if (num > numsentences[bn])
return 0;
spkup_write(sentmarks[bn][num], sentbufend[bn] - sentmarks[bn][num]);
return 1;
}
static int get_sentence_buf(struct vc_data *vc, int read_punc)
{
u_long start, end;
int i, bn;
u_char tmp;
currbuf++;
if (currbuf == 2)
currbuf = 0;
bn = currbuf;
start = vc->vc_origin + ((spk_y) * vc->vc_size_row);
end = vc->vc_origin + ((spk_y) * vc->vc_size_row) + vc->vc_cols * 2;
numsentences[bn] = 0;
sentmarks[bn][0] = &sentbuf[bn][0];
i = 0;
spk_old_attr = spk_attr;
spk_attr = get_attributes(vc, (u_short *)start);
while (start < end) {
sentbuf[bn][i] = get_char(vc, (u_short *)start, &tmp);
if (i > 0) {
if (sentbuf[bn][i] == SPACE &&
sentbuf[bn][i - 1] == '.' &&
numsentences[bn] < 9) {
/* Sentence Marker */
numsentences[bn]++;
sentmarks[bn][numsentences[bn]] =
&sentbuf[bn][i];
}
}
i++;
start += 2;
if (i >= vc->vc_size_row)
break;
}
for (--i; i >= 0; i--)
if (sentbuf[bn][i] != SPACE)
break;
if (i < 1)
return -1;
sentbuf[bn][++i] = SPACE;
sentbuf[bn][++i] = '\0';
sentbufend[bn] = &sentbuf[bn][i];
return numsentences[bn];
}
static void say_screen_from_to(struct vc_data *vc, u_long from, u_long to)
{
u_long start = vc->vc_origin, end;
if (from > 0)
start += from * vc->vc_size_row;
if (to > vc->vc_rows)
to = vc->vc_rows;
end = vc->vc_origin + (to * vc->vc_size_row);
for (from = start; from < end; from = to) {
to = from + vc->vc_size_row;
say_from_to(vc, from, to, 1);
}
}
static void say_screen(struct vc_data *vc)
{
say_screen_from_to(vc, 0, vc->vc_rows);
}
static void speakup_win_say(struct vc_data *vc)
{
u_long start, end, from, to;
if (win_start < 2) {
synth_printf("%s\n", spk_msg_get(MSG_NO_WINDOW));
return;
}
start = vc->vc_origin + (win_top * vc->vc_size_row);
end = vc->vc_origin + (win_bottom * vc->vc_size_row);
while (start <= end) {
from = start + (win_left * 2);
to = start + (win_right * 2);
say_from_to(vc, from, to, 1);
start += vc->vc_size_row;
}
}
static void top_edge(struct vc_data *vc)
{
spk_parked |= 0x01;
spk_pos = vc->vc_origin + 2 * spk_x;
spk_y = 0;
say_line(vc);
}
static void bottom_edge(struct vc_data *vc)
{
spk_parked |= 0x01;
spk_pos += (vc->vc_rows - spk_y - 1) * vc->vc_size_row;
spk_y = vc->vc_rows - 1;
say_line(vc);
}
static void left_edge(struct vc_data *vc)
{
spk_parked |= 0x01;
spk_pos -= spk_x * 2;
spk_x = 0;
say_char(vc);
}
static void right_edge(struct vc_data *vc)
{
spk_parked |= 0x01;
spk_pos += (vc->vc_cols - spk_x - 1) * 2;
spk_x = vc->vc_cols - 1;
say_char(vc);
}
static void say_first_char(struct vc_data *vc)
{
int i, len = get_line(vc);
u16 ch;
spk_parked |= 0x01;
if (len == 0) {
synth_printf("%s\n", spk_msg_get(MSG_BLANK));
return;
}
for (i = 0; i < len; i++)
if (buf[i] != SPACE)
break;
ch = buf[i];
spk_pos -= (spk_x - i) * 2;
spk_x = i;
synth_printf("%d, ", ++i);
speak_char(ch);
}
static void say_last_char(struct vc_data *vc)
{
int len = get_line(vc);
u16 ch;
spk_parked |= 0x01;
if (len == 0) {
synth_printf("%s\n", spk_msg_get(MSG_BLANK));
return;
}
ch = buf[--len];
spk_pos -= (spk_x - len) * 2;
spk_x = len;
synth_printf("%d, ", ++len);
speak_char(ch);
}
static void say_position(struct vc_data *vc)
{
synth_printf(spk_msg_get(MSG_POS_INFO), spk_y + 1, spk_x + 1,
vc->vc_num + 1);
synth_printf("\n");
}
/* Added by brianb */
static void say_char_num(struct vc_data *vc)
{
u_char tmp;
u16 ch = get_char(vc, (u_short *)spk_pos, &tmp);
synth_printf(spk_msg_get(MSG_CHAR_INFO), ch, ch);
}
/* these are stub functions to keep keyboard.c happy. */
static void say_from_top(struct vc_data *vc)
{
say_screen_from_to(vc, 0, spk_y);
}
static void say_to_bottom(struct vc_data *vc)
{
say_screen_from_to(vc, spk_y, vc->vc_rows);
}
static void say_from_left(struct vc_data *vc)
{
say_line_from_to(vc, 0, spk_x, 1);
}
static void say_to_right(struct vc_data *vc)
{
say_line_from_to(vc, spk_x, vc->vc_cols, 1);
}
/* end of stub functions. */
static void spkup_write(const u16 *in_buf, int count)
{
static int rep_count;
static u16 ch = '\0', old_ch = '\0';
static u_short char_type, last_type;
int in_count = count;
spk_keydown = 0;
while (count--) {
if (cursor_track == read_all_mode) {
/* Insert Sentence Index */
if ((in_buf == sentmarks[bn][currsentence]) &&
(currsentence <= numsentences[bn]))
synth_insert_next_index(currsentence++);
}
ch = *in_buf++;
if (ch < 0x100)
char_type = spk_chartab[ch];
else
char_type = ALPHA;
if (ch == old_ch && !(char_type & B_NUM)) {
if (++rep_count > 2)
continue;
} else {
if ((last_type & CH_RPT) && rep_count > 2) {
synth_printf(" ");
synth_printf(spk_msg_get(MSG_REPEAT_DESC),
++rep_count);
synth_printf(" ");
}
rep_count = 0;
}
if (ch == spk_lastkey) {
rep_count = 0;
if (spk_key_echo == 1 && ch >= MINECHOCHAR)
speak_char(ch);
} else if (char_type & B_ALPHA) {
if ((synth_flags & SF_DEC) && (last_type & PUNC))
synth_buffer_add(SPACE);
synth_putwc_s(ch);
} else if (char_type & B_NUM) {
rep_count = 0;
synth_putwc_s(ch);
} else if (char_type & spk_punc_mask) {
speak_char(ch);
char_type &= ~PUNC; /* for dec nospell processing */
} else if (char_type & SYNTH_OK) {
/* these are usually puncts like . and , which synth
* needs for expression.
* suppress multiple to get rid of long pauses and
* clear repeat count
* so if someone has
* repeats on you don't get nothing repeated count
*/
if (ch != old_ch)
synth_putwc_s(ch);
else
rep_count = 0;
} else {
/* send space and record position, if next is num overwrite space */
if (old_ch != ch)
synth_buffer_add(SPACE);
else
rep_count = 0;
}
old_ch = ch;
last_type = char_type;
}
spk_lastkey = 0;
if (in_count > 2 && rep_count > 2) {
if (last_type & CH_RPT) {
synth_printf(" ");
synth_printf(spk_msg_get(MSG_REPEAT_DESC2),
++rep_count);
synth_printf(" ");
}
rep_count = 0;
}
}
static const int NUM_CTL_LABELS = (MSG_CTL_END - MSG_CTL_START + 1);
static void read_all_doc(struct vc_data *vc);
static void cursor_done(struct timer_list *unused);
static DEFINE_TIMER(cursor_timer, cursor_done);
static void do_handle_shift(struct vc_data *vc, u_char value, char up_flag)
{
unsigned long flags;
if (!synth || up_flag || spk_killed)
return;
spin_lock_irqsave(&speakup_info.spinlock, flags);
if (cursor_track == read_all_mode) {
switch (value) {
case KVAL(K_SHIFT):
del_timer(&cursor_timer);
spk_shut_up &= 0xfe;
spk_do_flush();
read_all_doc(vc);
break;
case KVAL(K_CTRL):
del_timer(&cursor_timer);
cursor_track = prev_cursor_track;
spk_shut_up &= 0xfe;
spk_do_flush();
break;
}
} else {
spk_shut_up &= 0xfe;
spk_do_flush();
}
if (spk_say_ctrl && value < NUM_CTL_LABELS)
synth_printf("%s", spk_msg_get(MSG_CTL_START + value));
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
static void do_handle_latin(struct vc_data *vc, u_char value, char up_flag)
{
unsigned long flags;
spin_lock_irqsave(&speakup_info.spinlock, flags);
if (up_flag) {
spk_lastkey = 0;
spk_keydown = 0;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return;
}
if (!synth || spk_killed) {
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return;
}
spk_shut_up &= 0xfe;
spk_lastkey = value;
spk_keydown++;
spk_parked &= 0xfe;
if (spk_key_echo == 2 && value >= MINECHOCHAR)
speak_char(value);
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
int spk_set_key_info(const u_char *key_info, u_char *k_buffer)
{
int i = 0, states, key_data_len;
const u_char *cp = key_info;
u_char *cp1 = k_buffer;
u_char ch, version, num_keys;
version = *cp++;
if (version != KEY_MAP_VER) {
pr_debug("version found %d should be %d\n",
version, KEY_MAP_VER);
return -EINVAL;
}
num_keys = *cp;
states = (int)cp[1];
key_data_len = (states + 1) * (num_keys + 1);
if (key_data_len + SHIFT_TBL_SIZE + 4 >= sizeof(spk_key_buf)) {
pr_debug("too many key_infos (%d over %u)\n",
key_data_len + SHIFT_TBL_SIZE + 4,
(unsigned int)(sizeof(spk_key_buf)));
return -EINVAL;
}
memset(k_buffer, 0, SHIFT_TBL_SIZE);
memset(spk_our_keys, 0, sizeof(spk_our_keys));
spk_shift_table = k_buffer;
spk_our_keys[0] = spk_shift_table;
cp1 += SHIFT_TBL_SIZE;
memcpy(cp1, cp, key_data_len + 3);
/* get num_keys, states and data */
cp1 += 2; /* now pointing at shift states */
for (i = 1; i <= states; i++) {
ch = *cp1++;
if (ch >= SHIFT_TBL_SIZE) {
pr_debug("(%d) not valid shift state (max_allowed = %d)\n",
ch, SHIFT_TBL_SIZE);
return -EINVAL;
}
spk_shift_table[ch] = i;
}
keymap_flags = *cp1++;
while ((ch = *cp1)) {
if (ch >= MAX_KEY) {
pr_debug("(%d), not valid key, (max_allowed = %d)\n",
ch, MAX_KEY);
return -EINVAL;
}
spk_our_keys[ch] = cp1;
cp1 += states + 1;
}
return 0;
}
static struct var_t spk_vars[] = {
/* bell must be first to set high limit */
{BELL_POS, .u.n = {NULL, 0, 0, 0, 0, 0, NULL} },
{SPELL_DELAY, .u.n = {NULL, 0, 0, 4, 0, 0, NULL} },
{ATTRIB_BLEEP, .u.n = {NULL, 1, 0, 3, 0, 0, NULL} },
{BLEEPS, .u.n = {NULL, 3, 0, 3, 0, 0, NULL} },
{BLEEP_TIME, .u.n = {NULL, 30, 1, 200, 0, 0, NULL} },
{PUNC_LEVEL, .u.n = {NULL, 1, 0, 4, 0, 0, NULL} },
{READING_PUNC, .u.n = {NULL, 1, 0, 4, 0, 0, NULL} },
{CURSOR_TIME, .u.n = {NULL, 120, 50, 600, 0, 0, NULL} },
{SAY_CONTROL, TOGGLE_0},
{SAY_WORD_CTL, TOGGLE_0},
{NO_INTERRUPT, TOGGLE_0},
{KEY_ECHO, .u.n = {NULL, 1, 0, 2, 0, 0, NULL} },
V_LAST_VAR
};
static void toggle_cursoring(struct vc_data *vc)
{
if (cursor_track == read_all_mode)
cursor_track = prev_cursor_track;
if (++cursor_track >= CT_Max)
cursor_track = 0;
synth_printf("%s\n", spk_msg_get(MSG_CURSOR_MSGS_START + cursor_track));
}
void spk_reset_default_chars(void)
{
int i;
/* First, free any non-default */
for (i = 0; i < 256; i++) {
if (spk_characters[i] &&
(spk_characters[i] != spk_default_chars[i]))
kfree(spk_characters[i]);
}
memcpy(spk_characters, spk_default_chars, sizeof(spk_default_chars));
}
void spk_reset_default_chartab(void)
{
memcpy(spk_chartab, default_chartab, sizeof(default_chartab));
}
static const struct st_bits_data *pb_edit;
static int edit_bits(struct vc_data *vc, u_char type, u_char ch, u_short key)
{
short mask = pb_edit->mask, ch_type = spk_chartab[ch];
if (type != KT_LATIN || (ch_type & B_NUM) || ch < SPACE)
return -1;
if (ch == SPACE) {
synth_printf("%s\n", spk_msg_get(MSG_EDIT_DONE));
spk_special_handler = NULL;
return 1;
}
if (mask < PUNC && !(ch_type & PUNC))
return -1;
spk_chartab[ch] ^= mask;
speak_char(ch);
synth_printf(" %s\n",
(spk_chartab[ch] & mask) ? spk_msg_get(MSG_ON) :
spk_msg_get(MSG_OFF));
return 1;
}
/* Allocation concurrency is protected by the console semaphore */
static int speakup_allocate(struct vc_data *vc, gfp_t gfp_flags)
{
int vc_num;
vc_num = vc->vc_num;
if (!speakup_console[vc_num]) {
speakup_console[vc_num] = kzalloc(sizeof(*speakup_console[0]),
gfp_flags);
if (!speakup_console[vc_num])
return -ENOMEM;
speakup_date(vc);
} else if (!spk_parked) {
speakup_date(vc);
}
return 0;
}
static void speakup_deallocate(struct vc_data *vc)
{
int vc_num;
vc_num = vc->vc_num;
kfree(speakup_console[vc_num]);
speakup_console[vc_num] = NULL;
}
enum read_all_command {
RA_NEXT_SENT = KVAL(K_DOWN)+1,
RA_PREV_LINE = KVAL(K_LEFT)+1,
RA_NEXT_LINE = KVAL(K_RIGHT)+1,
RA_PREV_SENT = KVAL(K_UP)+1,
RA_DOWN_ARROW,
RA_TIMER,
RA_FIND_NEXT_SENT,
RA_FIND_PREV_SENT,
};
static u_char is_cursor;
static u_long old_cursor_pos, old_cursor_x, old_cursor_y;
static int cursor_con;
static void reset_highlight_buffers(struct vc_data *);
static enum read_all_command read_all_key;
static int in_keyboard_notifier;
static void start_read_all_timer(struct vc_data *vc, enum read_all_command command);
static void kbd_fakekey2(struct vc_data *vc, enum read_all_command command)
{
del_timer(&cursor_timer);
speakup_fake_down_arrow();
start_read_all_timer(vc, command);
}
static void read_all_doc(struct vc_data *vc)
{
if ((vc->vc_num != fg_console) || !synth || spk_shut_up)
return;
if (!synth_supports_indexing())
return;
if (cursor_track != read_all_mode)
prev_cursor_track = cursor_track;
cursor_track = read_all_mode;
spk_reset_index_count(0);
if (get_sentence_buf(vc, 0) == -1) {
del_timer(&cursor_timer);
if (!in_keyboard_notifier)
speakup_fake_down_arrow();
start_read_all_timer(vc, RA_DOWN_ARROW);
} else {
say_sentence_num(0, 0);
synth_insert_next_index(0);
start_read_all_timer(vc, RA_TIMER);
}
}
static void stop_read_all(struct vc_data *vc)
{
del_timer(&cursor_timer);
cursor_track = prev_cursor_track;
spk_shut_up &= 0xfe;
spk_do_flush();
}
static void start_read_all_timer(struct vc_data *vc, enum read_all_command command)
{
struct var_t *cursor_timeout;
cursor_con = vc->vc_num;
read_all_key = command;
cursor_timeout = spk_get_var(CURSOR_TIME);
mod_timer(&cursor_timer,
jiffies + msecs_to_jiffies(cursor_timeout->u.n.value));
}
static void handle_cursor_read_all(struct vc_data *vc, enum read_all_command command)
{
int indcount, sentcount, rv, sn;
switch (command) {
case RA_NEXT_SENT:
/* Get Current Sentence */
spk_get_index_count(&indcount, &sentcount);
/*printk("%d %d ", indcount, sentcount); */
spk_reset_index_count(sentcount + 1);
if (indcount == 1) {
if (!say_sentence_num(sentcount + 1, 0)) {
kbd_fakekey2(vc, RA_FIND_NEXT_SENT);
return;
}
synth_insert_next_index(0);
} else {
sn = 0;
if (!say_sentence_num(sentcount + 1, 1)) {
sn = 1;
spk_reset_index_count(sn);
} else {
synth_insert_next_index(0);
}
if (!say_sentence_num(sn, 0)) {
kbd_fakekey2(vc, RA_FIND_NEXT_SENT);
return;
}
synth_insert_next_index(0);
}
start_read_all_timer(vc, RA_TIMER);
break;
case RA_PREV_SENT:
break;
case RA_NEXT_LINE:
read_all_doc(vc);
break;
case RA_PREV_LINE:
break;
case RA_DOWN_ARROW:
if (get_sentence_buf(vc, 0) == -1) {
kbd_fakekey2(vc, RA_DOWN_ARROW);
} else {
say_sentence_num(0, 0);
synth_insert_next_index(0);
start_read_all_timer(vc, RA_TIMER);
}
break;
case RA_FIND_NEXT_SENT:
rv = get_sentence_buf(vc, 0);
if (rv == -1)
read_all_doc(vc);
if (rv == 0) {
kbd_fakekey2(vc, RA_FIND_NEXT_SENT);
} else {
say_sentence_num(1, 0);
synth_insert_next_index(0);
start_read_all_timer(vc, RA_TIMER);
}
break;
case RA_FIND_PREV_SENT:
break;
case RA_TIMER:
spk_get_index_count(&indcount, &sentcount);
if (indcount < 2)
kbd_fakekey2(vc, RA_DOWN_ARROW);
else
start_read_all_timer(vc, RA_TIMER);
break;
}
}
static int pre_handle_cursor(struct vc_data *vc, u_char value, char up_flag)
{
unsigned long flags;
spin_lock_irqsave(&speakup_info.spinlock, flags);
if (cursor_track == read_all_mode) {
spk_parked &= 0xfe;
if (!synth || up_flag || spk_shut_up) {
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return NOTIFY_STOP;
}
del_timer(&cursor_timer);
spk_shut_up &= 0xfe;
spk_do_flush();
start_read_all_timer(vc, value + 1);
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return NOTIFY_STOP;
}
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return NOTIFY_OK;
}
static void do_handle_cursor(struct vc_data *vc, u_char value, char up_flag)
{
unsigned long flags;
struct var_t *cursor_timeout;
spin_lock_irqsave(&speakup_info.spinlock, flags);
spk_parked &= 0xfe;
if (!synth || up_flag || spk_shut_up || cursor_track == CT_Off) {
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return;
}
spk_shut_up &= 0xfe;
if (spk_no_intr)
spk_do_flush();
/* the key press flushes if !no_inter but we want to flush on cursor
* moves regardless of no_inter state
*/
is_cursor = value + 1;
old_cursor_pos = vc->vc_pos;
old_cursor_x = vc->state.x;
old_cursor_y = vc->state.y;
speakup_console[vc->vc_num]->ht.cy = vc->state.y;
cursor_con = vc->vc_num;
if (cursor_track == CT_Highlight)
reset_highlight_buffers(vc);
cursor_timeout = spk_get_var(CURSOR_TIME);
mod_timer(&cursor_timer,
jiffies + msecs_to_jiffies(cursor_timeout->u.n.value));
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
static void update_color_buffer(struct vc_data *vc, const u16 *ic, int len)
{
int i, bi, hi;
int vc_num = vc->vc_num;
bi = (vc->vc_attr & 0x70) >> 4;
hi = speakup_console[vc_num]->ht.highsize[bi];
i = 0;
if (speakup_console[vc_num]->ht.highsize[bi] == 0) {
speakup_console[vc_num]->ht.rpos[bi] = vc->vc_pos;
speakup_console[vc_num]->ht.rx[bi] = vc->state.x;
speakup_console[vc_num]->ht.ry[bi] = vc->state.y;
}
while ((hi < COLOR_BUFFER_SIZE) && (i < len)) {
if (ic[i] > 32) {
speakup_console[vc_num]->ht.highbuf[bi][hi] = ic[i];
hi++;
} else if ((ic[i] == 32) && (hi != 0)) {
if (speakup_console[vc_num]->ht.highbuf[bi][hi - 1] !=
32) {
speakup_console[vc_num]->ht.highbuf[bi][hi] =
ic[i];
hi++;
}
}
i++;
}
speakup_console[vc_num]->ht.highsize[bi] = hi;
}
static void reset_highlight_buffers(struct vc_data *vc)
{
int i;
int vc_num = vc->vc_num;
for (i = 0; i < 8; i++)
speakup_console[vc_num]->ht.highsize[i] = 0;
}
static int count_highlight_color(struct vc_data *vc)
{
int i, bg;
int cc;
int vc_num = vc->vc_num;
u16 ch;
u16 *start = (u16 *)vc->vc_origin;
for (i = 0; i < 8; i++)
speakup_console[vc_num]->ht.bgcount[i] = 0;
for (i = 0; i < vc->vc_rows; i++) {
u16 *end = start + vc->vc_cols * 2;
u16 *ptr;
for (ptr = start; ptr < end; ptr++) {
ch = get_attributes(vc, ptr);
bg = (ch & 0x70) >> 4;
speakup_console[vc_num]->ht.bgcount[bg]++;
}
start += vc->vc_size_row;
}
cc = 0;
for (i = 0; i < 8; i++)
if (speakup_console[vc_num]->ht.bgcount[i] > 0)
cc++;
return cc;
}
static int get_highlight_color(struct vc_data *vc)
{
int i, j;
unsigned int cptr[8];
int vc_num = vc->vc_num;
for (i = 0; i < 8; i++)
cptr[i] = i;
for (i = 0; i < 7; i++)
for (j = i + 1; j < 8; j++)
if (speakup_console[vc_num]->ht.bgcount[cptr[i]] >
speakup_console[vc_num]->ht.bgcount[cptr[j]])
swap(cptr[i], cptr[j]);
for (i = 0; i < 8; i++)
if (speakup_console[vc_num]->ht.bgcount[cptr[i]] != 0)
if (speakup_console[vc_num]->ht.highsize[cptr[i]] > 0)
return cptr[i];
return -1;
}
static int speak_highlight(struct vc_data *vc)
{
int hc, d;
int vc_num = vc->vc_num;
if (count_highlight_color(vc) == 1)
return 0;
hc = get_highlight_color(vc);
if (hc != -1) {
d = vc->state.y - speakup_console[vc_num]->ht.cy;
if ((d == 1) || (d == -1))
if (speakup_console[vc_num]->ht.ry[hc] != vc->state.y)
return 0;
spk_parked |= 0x01;
spk_do_flush();
spkup_write(speakup_console[vc_num]->ht.highbuf[hc],
speakup_console[vc_num]->ht.highsize[hc]);
spk_pos = spk_cp = speakup_console[vc_num]->ht.rpos[hc];
spk_x = spk_cx = speakup_console[vc_num]->ht.rx[hc];
spk_y = spk_cy = speakup_console[vc_num]->ht.ry[hc];
return 1;
}
return 0;
}
static void cursor_done(struct timer_list *unused)
{
struct vc_data *vc = vc_cons[cursor_con].d;
unsigned long flags;
del_timer(&cursor_timer);
spin_lock_irqsave(&speakup_info.spinlock, flags);
if (cursor_con != fg_console) {
is_cursor = 0;
goto out;
}
speakup_date(vc);
if (win_enabled) {
if (vc->state.x >= win_left && vc->state.x <= win_right &&
vc->state.y >= win_top && vc->state.y <= win_bottom) {
spk_keydown = 0;
is_cursor = 0;
goto out;
}
}
if (cursor_track == read_all_mode) {
handle_cursor_read_all(vc, read_all_key);
goto out;
}
if (cursor_track == CT_Highlight) {
if (speak_highlight(vc)) {
spk_keydown = 0;
is_cursor = 0;
goto out;
}
}
if (cursor_track == CT_Window)
speakup_win_say(vc);
else if (is_cursor == 1 || is_cursor == 4)
say_line_from_to(vc, 0, vc->vc_cols, 0);
else
say_char(vc);
spk_keydown = 0;
is_cursor = 0;
out:
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
/* called by: vt_notifier_call() */
static void speakup_bs(struct vc_data *vc)
{
unsigned long flags;
if (!speakup_console[vc->vc_num])
return;
if (!spin_trylock_irqsave(&speakup_info.spinlock, flags))
/* Speakup output, discard */
return;
if (!spk_parked)
speakup_date(vc);
if (spk_shut_up || !synth) {
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return;
}
if (vc->vc_num == fg_console && spk_keydown) {
spk_keydown = 0;
if (!is_cursor)
say_char(vc);
}
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
/* called by: vt_notifier_call() */
static void speakup_con_write(struct vc_data *vc, u16 *str, int len)
{
unsigned long flags;
if ((vc->vc_num != fg_console) || spk_shut_up || !synth)
return;
if (!spin_trylock_irqsave(&speakup_info.spinlock, flags))
/* Speakup output, discard */
return;
if (spk_bell_pos && spk_keydown && (vc->state.x == spk_bell_pos - 1))
bleep(3);
if ((is_cursor) || (cursor_track == read_all_mode)) {
if (cursor_track == CT_Highlight)
update_color_buffer(vc, str, len);
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return;
}
if (win_enabled) {
if (vc->state.x >= win_left && vc->state.x <= win_right &&
vc->state.y >= win_top && vc->state.y <= win_bottom) {
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return;
}
}
spkup_write(str, len);
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
static void speakup_con_update(struct vc_data *vc)
{
unsigned long flags;
if (!speakup_console[vc->vc_num] || spk_parked || !synth)
return;
if (!spin_trylock_irqsave(&speakup_info.spinlock, flags))
/* Speakup output, discard */
return;
speakup_date(vc);
if (vc->vc_mode == KD_GRAPHICS && !spk_paused && spk_str_pause[0]) {
synth_printf("%s", spk_str_pause);
spk_paused = true;
}
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
static void do_handle_spec(struct vc_data *vc, u_char value, char up_flag)
{
unsigned long flags;
int on_off = 2;
char *label;
if (!synth || up_flag || spk_killed)
return;
spin_lock_irqsave(&speakup_info.spinlock, flags);
spk_shut_up &= 0xfe;
if (spk_no_intr)
spk_do_flush();
switch (value) {
case KVAL(K_CAPS):
label = spk_msg_get(MSG_KEYNAME_CAPSLOCK);
on_off = vt_get_leds(fg_console, VC_CAPSLOCK);
break;
case KVAL(K_NUM):
label = spk_msg_get(MSG_KEYNAME_NUMLOCK);
on_off = vt_get_leds(fg_console, VC_NUMLOCK);
break;
case KVAL(K_HOLD):
label = spk_msg_get(MSG_KEYNAME_SCROLLLOCK);
on_off = vt_get_leds(fg_console, VC_SCROLLOCK);
if (speakup_console[vc->vc_num])
speakup_console[vc->vc_num]->tty_stopped = on_off;
break;
default:
spk_parked &= 0xfe;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return;
}
if (on_off < 2)
synth_printf("%s %s\n",
label, spk_msg_get(MSG_STATUS_START + on_off));
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
static int inc_dec_var(u_char value)
{
struct st_var_header *p_header;
struct var_t *var_data;
char num_buf[32];
char *cp = num_buf;
char *pn;
int var_id = (int)value - VAR_START;
int how = (var_id & 1) ? E_INC : E_DEC;
var_id = var_id / 2 + FIRST_SET_VAR;
p_header = spk_get_var_header(var_id);
if (!p_header)
return -1;
if (p_header->var_type != VAR_NUM)
return -1;
var_data = p_header->data;
if (spk_set_num_var(1, p_header, how) != 0)
return -1;
if (!spk_close_press) {
for (pn = p_header->name; *pn; pn++) {
if (*pn == '_')
*cp = SPACE;
else
*cp++ = *pn;
}
}
snprintf(cp, sizeof(num_buf) - (cp - num_buf), " %d ",
var_data->u.n.value);
synth_printf("%s", num_buf);
return 0;
}
static void speakup_win_set(struct vc_data *vc)
{
char info[40];
if (win_start > 1) {
synth_printf("%s\n", spk_msg_get(MSG_WINDOW_ALREADY_SET));
return;
}
if (spk_x < win_left || spk_y < win_top) {
synth_printf("%s\n", spk_msg_get(MSG_END_BEFORE_START));
return;
}
if (win_start && spk_x == win_left && spk_y == win_top) {
win_left = 0;
win_right = vc->vc_cols - 1;
win_bottom = spk_y;
snprintf(info, sizeof(info), spk_msg_get(MSG_WINDOW_LINE),
(int)win_top + 1);
} else {
if (!win_start) {
win_top = spk_y;
win_left = spk_x;
} else {
win_bottom = spk_y;
win_right = spk_x;
}
snprintf(info, sizeof(info), spk_msg_get(MSG_WINDOW_BOUNDARY),
(win_start) ?
spk_msg_get(MSG_END) : spk_msg_get(MSG_START),
(int)spk_y + 1, (int)spk_x + 1);
}
synth_printf("%s\n", info);
win_start++;
}
static void speakup_win_clear(struct vc_data *vc)
{
win_top = 0;
win_bottom = 0;
win_left = 0;
win_right = 0;
win_start = 0;
synth_printf("%s\n", spk_msg_get(MSG_WINDOW_CLEARED));
}
static void speakup_win_enable(struct vc_data *vc)
{
if (win_start < 2) {
synth_printf("%s\n", spk_msg_get(MSG_NO_WINDOW));
return;
}
win_enabled ^= 1;
if (win_enabled)
synth_printf("%s\n", spk_msg_get(MSG_WINDOW_SILENCED));
else
synth_printf("%s\n", spk_msg_get(MSG_WINDOW_SILENCE_DISABLED));
}
static void speakup_bits(struct vc_data *vc)
{
int val = this_speakup_key - (FIRST_EDIT_BITS - 1);
if (spk_special_handler || val < 1 || val > 6) {
synth_printf("%s\n", spk_msg_get(MSG_ERROR));
return;
}
pb_edit = &spk_punc_info[val];
synth_printf(spk_msg_get(MSG_EDIT_PROMPT), pb_edit->name);
spk_special_handler = edit_bits;
}
static int handle_goto(struct vc_data *vc, u_char type, u_char ch, u_short key)
{
static u_char goto_buf[8];
static int num;
int maxlen;
char *cp;
u16 wch;
if (type == KT_SPKUP && ch == SPEAKUP_GOTO)
goto do_goto;
if (type == KT_LATIN && ch == '\n')
goto do_goto;
if (type != 0)
goto oops;
if (ch == 8) {
u16 wch;
if (num == 0)
return -1;
wch = goto_buf[--num];
goto_buf[num] = '\0';
spkup_write(&wch, 1);
return 1;
}
if (ch < '+' || ch > 'y')
goto oops;
wch = ch;
goto_buf[num++] = ch;
goto_buf[num] = '\0';
spkup_write(&wch, 1);
maxlen = (*goto_buf >= '0') ? 3 : 4;
if ((ch == '+' || ch == '-') && num == 1)
return 1;
if (ch >= '0' && ch <= '9' && num < maxlen)
return 1;
if (num < maxlen - 1 || num > maxlen)
goto oops;
if (ch < 'x' || ch > 'y') {
oops:
if (!spk_killed)
synth_printf(" %s\n", spk_msg_get(MSG_GOTO_CANCELED));
goto_buf[num = 0] = '\0';
spk_special_handler = NULL;
return 1;
}
/* Do not replace with kstrtoul: here we need cp to be updated */
goto_pos = simple_strtoul(goto_buf, &cp, 10);
if (*cp == 'x') {
if (*goto_buf < '0')
goto_pos += spk_x;
else if (goto_pos > 0)
goto_pos--;
if (goto_pos >= vc->vc_cols)
goto_pos = vc->vc_cols - 1;
goto_x = 1;
} else {
if (*goto_buf < '0')
goto_pos += spk_y;
else if (goto_pos > 0)
goto_pos--;
if (goto_pos >= vc->vc_rows)
goto_pos = vc->vc_rows - 1;
goto_x = 0;
}
goto_buf[num = 0] = '\0';
do_goto:
spk_special_handler = NULL;
spk_parked |= 0x01;
if (goto_x) {
spk_pos -= spk_x * 2;
spk_x = goto_pos;
spk_pos += goto_pos * 2;
say_word(vc);
} else {
spk_y = goto_pos;
spk_pos = vc->vc_origin + (goto_pos * vc->vc_size_row);
say_line(vc);
}
return 1;
}
static void speakup_goto(struct vc_data *vc)
{
if (spk_special_handler) {
synth_printf("%s\n", spk_msg_get(MSG_ERROR));
return;
}
synth_printf("%s\n", spk_msg_get(MSG_GOTO));
spk_special_handler = handle_goto;
}
static void speakup_help(struct vc_data *vc)
{
spk_handle_help(vc, KT_SPKUP, SPEAKUP_HELP, 0);
}
static void do_nothing(struct vc_data *vc)
{
return; /* flush done in do_spkup */
}
static u_char key_speakup, spk_key_locked;
static void speakup_lock(struct vc_data *vc)
{
if (!spk_key_locked) {
spk_key_locked = 16;
key_speakup = 16;
} else {
spk_key_locked = 0;
key_speakup = 0;
}
}
typedef void (*spkup_hand) (struct vc_data *);
static spkup_hand spkup_handler[] = {
/* must be ordered same as defines in speakup.h */
do_nothing, speakup_goto, speech_kill, speakup_shut_up,
speakup_cut, speakup_paste, say_first_char, say_last_char,
say_char, say_prev_char, say_next_char,
say_word, say_prev_word, say_next_word,
say_line, say_prev_line, say_next_line,
top_edge, bottom_edge, left_edge, right_edge,
spell_word, spell_word, say_screen,
say_position, say_attributes,
speakup_off, speakup_parked, say_line, /* this is for indent */
say_from_top, say_to_bottom,
say_from_left, say_to_right,
say_char_num, speakup_bits, speakup_bits, say_phonetic_char,
speakup_bits, speakup_bits, speakup_bits,
speakup_win_set, speakup_win_clear, speakup_win_enable, speakup_win_say,
speakup_lock, speakup_help, toggle_cursoring, read_all_doc, NULL
};
static void do_spkup(struct vc_data *vc, u_char value)
{
if (spk_killed && value != SPEECH_KILL)
return;
spk_keydown = 0;
spk_lastkey = 0;
spk_shut_up &= 0xfe;
this_speakup_key = value;
if (value < SPKUP_MAX_FUNC && spkup_handler[value]) {
spk_do_flush();
(*spkup_handler[value]) (vc);
} else {
if (inc_dec_var(value) < 0)
bleep(9);
}
}
static const char *pad_chars = "0123456789+-*/\015,.?()";
static int
speakup_key(struct vc_data *vc, int shift_state, int keycode, u_short keysym,
int up_flag)
{
unsigned long flags;
int kh;
u_char *key_info;
u_char type = KTYP(keysym), value = KVAL(keysym), new_key = 0;
u_char shift_info, offset;
int ret = 0;
if (!synth)
return 0;
spin_lock_irqsave(&speakup_info.spinlock, flags);
tty = vc->port.tty;
if (type >= 0xf0)
type -= 0xf0;
if (type == KT_PAD &&
(vt_get_leds(fg_console, VC_NUMLOCK))) {
if (up_flag) {
spk_keydown = 0;
goto out;
}
value = pad_chars[value];
spk_lastkey = value;
spk_keydown++;
spk_parked &= 0xfe;
goto no_map;
}
if (keycode >= MAX_KEY)
goto no_map;
key_info = spk_our_keys[keycode];
if (!key_info)
goto no_map;
/* Check valid read all mode keys */
if ((cursor_track == read_all_mode) && (!up_flag)) {
switch (value) {
case KVAL(K_DOWN):
case KVAL(K_UP):
case KVAL(K_LEFT):
case KVAL(K_RIGHT):
case KVAL(K_PGUP):
case KVAL(K_PGDN):
break;
default:
stop_read_all(vc);
break;
}
}
shift_info = (shift_state & 0x0f) + key_speakup;
offset = spk_shift_table[shift_info];
if (offset) {
new_key = key_info[offset];
if (new_key) {
ret = 1;
if (new_key == SPK_KEY) {
if (!spk_key_locked)
key_speakup = (up_flag) ? 0 : 16;
if (up_flag || spk_killed)
goto out;
spk_shut_up &= 0xfe;
spk_do_flush();
goto out;
}
if (up_flag)
goto out;
if (last_keycode == keycode &&
time_after(last_spk_jiffy + MAX_DELAY, jiffies)) {
spk_close_press = 1;
offset = spk_shift_table[shift_info + 32];
/* double press? */
if (offset && key_info[offset])
new_key = key_info[offset];
}
last_keycode = keycode;
last_spk_jiffy = jiffies;
type = KT_SPKUP;
value = new_key;
}
}
no_map:
if (type == KT_SPKUP && !spk_special_handler) {
do_spkup(vc, new_key);
spk_close_press = 0;
ret = 1;
goto out;
}
if (up_flag || spk_killed || type == KT_SHIFT)
goto out;
spk_shut_up &= 0xfe;
kh = (value == KVAL(K_DOWN)) ||
(value == KVAL(K_UP)) ||
(value == KVAL(K_LEFT)) ||
(value == KVAL(K_RIGHT));
if ((cursor_track != read_all_mode) || !kh)
if (!spk_no_intr)
spk_do_flush();
if (spk_special_handler) {
if (type == KT_SPEC && value == 1) {
value = '\n';
type = KT_LATIN;
} else if (type == KT_LETTER) {
type = KT_LATIN;
} else if (value == 0x7f) {
value = 8; /* make del = backspace */
}
ret = (*spk_special_handler) (vc, type, value, keycode);
spk_close_press = 0;
if (ret < 0)
bleep(9);
goto out;
}
last_keycode = 0;
out:
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
return ret;
}
static int keyboard_notifier_call(struct notifier_block *nb,
unsigned long code, void *_param)
{
struct keyboard_notifier_param *param = _param;
struct vc_data *vc = param->vc;
int up = !param->down;
int ret = NOTIFY_OK;
static int keycode; /* to hold the current keycode */
in_keyboard_notifier = 1;
if (vc->vc_mode == KD_GRAPHICS)
goto out;
/*
* First, determine whether we are handling a fake keypress on
* the current processor. If we are, then return NOTIFY_OK,
* to pass the keystroke up the chain. This prevents us from
* trying to take the Speakup lock while it is held by the
* processor on which the simulated keystroke was generated.
* Also, the simulated keystrokes should be ignored by Speakup.
*/
if (speakup_fake_key_pressed())
goto out;
switch (code) {
case KBD_KEYCODE:
/* speakup requires keycode and keysym currently */
keycode = param->value;
break;
case KBD_UNBOUND_KEYCODE:
/* not used yet */
break;
case KBD_UNICODE:
/* not used yet */
break;
case KBD_KEYSYM:
if (speakup_key(vc, param->shift, keycode, param->value, up))
ret = NOTIFY_STOP;
else if (KTYP(param->value) == KT_CUR)
ret = pre_handle_cursor(vc, KVAL(param->value), up);
break;
case KBD_POST_KEYSYM:{
unsigned char type = KTYP(param->value) - 0xf0;
unsigned char val = KVAL(param->value);
switch (type) {
case KT_SHIFT:
do_handle_shift(vc, val, up);
break;
case KT_LATIN:
case KT_LETTER:
do_handle_latin(vc, val, up);
break;
case KT_CUR:
do_handle_cursor(vc, val, up);
break;
case KT_SPEC:
do_handle_spec(vc, val, up);
break;
}
break;
}
}
out:
in_keyboard_notifier = 0;
return ret;
}
static int vt_notifier_call(struct notifier_block *nb,
unsigned long code, void *_param)
{
struct vt_notifier_param *param = _param;
struct vc_data *vc = param->vc;
switch (code) {
case VT_ALLOCATE:
if (vc->vc_mode == KD_TEXT)
speakup_allocate(vc, GFP_ATOMIC);
break;
case VT_DEALLOCATE:
speakup_deallocate(vc);
break;
case VT_WRITE:
if (param->c == '\b') {
speakup_bs(vc);
} else {
u16 d = param->c;
speakup_con_write(vc, &d, 1);
}
break;
case VT_UPDATE:
speakup_con_update(vc);
break;
}
return NOTIFY_OK;
}
/* called by: module_exit() */
static void __exit speakup_exit(void)
{
int i;
unregister_keyboard_notifier(&keyboard_notifier_block);
unregister_vt_notifier(&vt_notifier_block);
speakup_unregister_devsynth();
speakup_cancel_selection();
speakup_cancel_paste();
del_timer_sync(&cursor_timer);
kthread_stop(speakup_task);
speakup_task = NULL;
mutex_lock(&spk_mutex);
synth_release();
mutex_unlock(&spk_mutex);
spk_ttyio_unregister_ldisc();
speakup_kobj_exit();
for (i = 0; i < MAX_NR_CONSOLES; i++)
kfree(speakup_console[i]);
speakup_remove_virtual_keyboard();
for (i = 0; i < MAXVARS; i++)
speakup_unregister_var(i);
for (i = 0; i < 256; i++) {
if (spk_characters[i] != spk_default_chars[i])
kfree(spk_characters[i]);
}
spk_free_user_msgs();
}
/* call by: module_init() */
static int __init speakup_init(void)
{
int i;
long err = 0;
struct vc_data *vc = vc_cons[fg_console].d;
struct var_t *var;
/* These first few initializations cannot fail. */
spk_initialize_msgs(); /* Initialize arrays for i18n. */
spk_reset_default_chars();
spk_reset_default_chartab();
spk_strlwr(synth_name);
spk_vars[0].u.n.high = vc->vc_cols;
for (var = spk_vars; var->var_id != MAXVARS; var++)
speakup_register_var(var);
for (var = synth_time_vars;
(var->var_id >= 0) && (var->var_id < MAXVARS); var++)
speakup_register_var(var);
for (i = 1; spk_punc_info[i].mask != 0; i++)
spk_set_mask_bits(NULL, i, 2);
spk_set_key_info(spk_key_defaults, spk_key_buf);
/* From here on out, initializations can fail. */
err = speakup_add_virtual_keyboard();
if (err)
goto error_virtkeyboard;
for (i = 0; i < MAX_NR_CONSOLES; i++)
if (vc_cons[i].d) {
err = speakup_allocate(vc_cons[i].d, GFP_KERNEL);
if (err)
goto error_kobjects;
}
if (spk_quiet_boot)
spk_shut_up |= 0x01;
err = speakup_kobj_init();
if (err)
goto error_kobjects;
spk_ttyio_register_ldisc();
synth_init(synth_name);
speakup_register_devsynth();
/*
* register_devsynth might fail, but this error is not fatal.
* /dev/synth is an extra feature; the rest of Speakup
* will work fine without it.
*/
err = register_keyboard_notifier(&keyboard_notifier_block);
if (err)
goto error_kbdnotifier;
err = register_vt_notifier(&vt_notifier_block);
if (err)
goto error_vtnotifier;
speakup_task = kthread_create(speakup_thread, NULL, "speakup");
if (IS_ERR(speakup_task)) {
err = PTR_ERR(speakup_task);
goto error_task;
}
set_user_nice(speakup_task, 10);
wake_up_process(speakup_task);
pr_info("speakup %s: initialized\n", SPEAKUP_VERSION);
pr_info("synth name on entry is: %s\n", synth_name);
goto out;
error_task:
unregister_vt_notifier(&vt_notifier_block);
error_vtnotifier:
unregister_keyboard_notifier(&keyboard_notifier_block);
del_timer(&cursor_timer);
error_kbdnotifier:
speakup_unregister_devsynth();
mutex_lock(&spk_mutex);
synth_release();
mutex_unlock(&spk_mutex);
speakup_kobj_exit();
error_kobjects:
for (i = 0; i < MAX_NR_CONSOLES; i++)
kfree(speakup_console[i]);
speakup_remove_virtual_keyboard();
error_virtkeyboard:
for (i = 0; i < MAXVARS; i++)
speakup_unregister_var(i);
for (i = 0; i < 256; i++) {
if (spk_characters[i] != spk_default_chars[i])
kfree(spk_characters[i]);
}
spk_free_user_msgs();
out:
return err;
}
module_init(speakup_init);
module_exit(speakup_exit);