// 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 … #define MINECHOCHAR … MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_VERSION(…); char *synth_name; module_param_named(synth, synth_name, charp, 0444); module_param_named(quiet, spk_quiet_boot, bool, 0444); MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; special_func spk_special_handler; short spk_pitch_shift, synth_flags; static u16 buf[256]; int spk_attrib_bleep, spk_bleeps, spk_bleep_time = …; 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; int spk_cur_phonetic; char spk_str_caps_start[MAXVARLEN + 1] = …; char spk_str_caps_stop[MAXVARLEN + 1] = …; char spk_str_pause[MAXVARLEN + 1] = …; bool spk_paused; const struct st_bits_data spk_punc_info[] = …; static char mark_cut_flag; #define MAX_KEY … 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[] = …; /* cursor track modes, must be ordered same as cursor_msgs in enum msg_index_t */ enum cursor_track { … }; /* Speakup Cursor Track Variables */ static enum cursor_track cursor_track = …, prev_cursor_track = …; static struct tty_struct *tty; static void spkup_write(const u16 *in_buf, int count); static char *phonetic[] = …; /* 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] = …; /* 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] = …; 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(…) …; static int keyboard_notifier_call(struct notifier_block *, unsigned long code, void *param); static struct notifier_block keyboard_notifier_block = …; static int vt_notifier_call(struct notifier_block *, unsigned long code, void *param); static struct notifier_block vt_notifier_block = …; static unsigned char get_attributes(struct vc_data *vc, u16 *pos) { … } static void speakup_date(struct vc_data *vc) { … } static void bleep(u_short val) { … } static void speakup_shut_up(struct vc_data *vc) { … } static void speech_kill(struct vc_data *vc) { … } static void speakup_off(struct vc_data *vc) { … } static void speakup_parked(struct vc_data *vc) { … } static void speakup_cut(struct vc_data *vc) { … } static void speakup_paste(struct vc_data *vc) { … } static void say_attributes(struct vc_data *vc) { … } /* must be ordered same as edge_msgs in enum msg_index_t */ enum edge { … }; static void announce_edge(struct vc_data *vc, enum edge msg_id) { … } static void speak_char(u16 ch) { … } static u16 get_char(struct vc_data *vc, u16 *pos, u_char *attribs) { … } static void say_char(struct vc_data *vc) { … } static void say_phonetic_char(struct vc_data *vc) { … } static void say_prev_char(struct vc_data *vc) { … } static void say_next_char(struct vc_data *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) { … } static void say_word(struct vc_data *vc) { … } static void say_prev_word(struct vc_data *vc) { … } static void say_next_word(struct vc_data *vc) { … } static void spell_word(struct vc_data *vc) { … } static int get_line(struct vc_data *vc) { … } static void say_line(struct vc_data *vc) { … } static void say_prev_line(struct vc_data *vc) { … } static void say_next_line(struct vc_data *vc) { … } static int say_from_to(struct vc_data *vc, u_long from, u_long to, int read_punc) { … } static void say_line_from_to(struct vc_data *vc, u_long from, u_long to, int read_punc) { … } /* 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) { … } static int get_sentence_buf(struct vc_data *vc, int read_punc) { … } static void say_screen_from_to(struct vc_data *vc, u_long from, u_long to) { … } static void say_screen(struct vc_data *vc) { … } static void speakup_win_say(struct vc_data *vc) { … } static void top_edge(struct vc_data *vc) { … } static void bottom_edge(struct vc_data *vc) { … } static void left_edge(struct vc_data *vc) { … } static void right_edge(struct vc_data *vc) { … } static void say_first_char(struct vc_data *vc) { … } static void say_last_char(struct vc_data *vc) { … } static void say_position(struct vc_data *vc) { … } /* Added by brianb */ static void say_char_num(struct vc_data *vc) { … } /* these are stub functions to keep keyboard.c happy. */ static void say_from_top(struct vc_data *vc) { … } static void say_to_bottom(struct vc_data *vc) { … } static void say_from_left(struct vc_data *vc) { … } static void say_to_right(struct vc_data *vc) { … } /* end of stub functions. */ static void spkup_write(const u16 *in_buf, int count) { … } static const int NUM_CTL_LABELS = …; 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) { … } static void do_handle_latin(struct vc_data *vc, u_char value, char up_flag) { … } int spk_set_key_info(const u_char *key_info, u_char *k_buffer) { … } enum spk_vars_id { … }; static struct var_t spk_vars[NB_ID] = …; static void toggle_cursoring(struct vc_data *vc) { … } void spk_reset_default_chars(void) { … } void spk_reset_default_chartab(void) { … } 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) { … } /* Allocation concurrency is protected by the console semaphore */ static int speakup_allocate(struct vc_data *vc, gfp_t gfp_flags) { … } static void speakup_deallocate(struct vc_data *vc) { … } enum read_all_command { … }; 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) { … } static void read_all_doc(struct vc_data *vc) { … } static void stop_read_all(struct vc_data *vc) { … } static void start_read_all_timer(struct vc_data *vc, enum read_all_command command) { … } static void handle_cursor_read_all(struct vc_data *vc, enum read_all_command command) { … } static int pre_handle_cursor(struct vc_data *vc, u_char value, char up_flag) { … } static void do_handle_cursor(struct vc_data *vc, u_char value, char up_flag) { … } static void update_color_buffer(struct vc_data *vc, const u16 *ic, int len) { … } static void reset_highlight_buffers(struct vc_data *vc) { … } static int count_highlight_color(struct vc_data *vc) { … } static int get_highlight_color(struct vc_data *vc) { … } static int speak_highlight(struct vc_data *vc) { … } static void cursor_done(struct timer_list *unused) { … } /* called by: vt_notifier_call() */ static void speakup_bs(struct vc_data *vc) { … } /* called by: vt_notifier_call() */ static void speakup_con_write(struct vc_data *vc, u16 *str, int len) { … } static void speakup_con_update(struct vc_data *vc) { … } static void do_handle_spec(struct vc_data *vc, u_char value, char up_flag) { … } static int inc_dec_var(u_char value) { … } static void speakup_win_set(struct vc_data *vc) { … } static void speakup_win_clear(struct vc_data *vc) { … } static void speakup_win_enable(struct vc_data *vc) { … } static void speakup_bits(struct vc_data *vc) { … } static int handle_goto(struct vc_data *vc, u_char type, u_char ch, u_short key) { … } static void speakup_goto(struct vc_data *vc) { … } static void speakup_help(struct vc_data *vc) { … } static void do_nothing(struct vc_data *vc) { … } static u_char key_speakup, spk_key_locked; static void speakup_lock(struct vc_data *vc) { … } spkup_hand; static spkup_hand spkup_handler[] = …; static void do_spkup(struct vc_data *vc, u_char value) { … } static const char *pad_chars = …; static int speakup_key(struct vc_data *vc, int shift_state, int keycode, u_short keysym, int up_flag) { … } static int keyboard_notifier_call(struct notifier_block *nb, unsigned long code, void *_param) { … } static int vt_notifier_call(struct notifier_block *nb, unsigned long code, void *_param) { … } /* called by: module_exit() */ static void __exit speakup_exit(void) { … } /* call by: module_init() */ static int __init speakup_init(void) { … } module_param_named(bell_pos, spk_vars[BELL_POS_ID].u.n.default_val, int, 0444); module_param_named(spell_delay, spk_vars[SPELL_DELAY_ID].u.n.default_val, int, 0444); module_param_named(attrib_bleep, spk_vars[ATTRIB_BLEEP_ID].u.n.default_val, int, 0444); module_param_named(bleeps, spk_vars[BLEEPS_ID].u.n.default_val, int, 0444); module_param_named(bleep_time, spk_vars[BLEEP_TIME_ID].u.n.default_val, int, 0444); module_param_named(punc_level, spk_vars[PUNC_LEVEL_ID].u.n.default_val, int, 0444); module_param_named(reading_punc, spk_vars[READING_PUNC_ID].u.n.default_val, int, 0444); module_param_named(cursor_time, spk_vars[CURSOR_TIME_ID].u.n.default_val, int, 0444); module_param_named(say_control, spk_vars[SAY_CONTROL_ID].u.n.default_val, int, 0444); module_param_named(say_word_ctl, spk_vars[SAY_WORD_CTL_ID].u.n.default_val, int, 0444); module_param_named(no_interrupt, spk_vars[NO_INTERRUPT_ID].u.n.default_val, int, 0444); module_param_named(key_echo, spk_vars[KEY_ECHO_ID].u.n.default_val, int, 0444); module_param_named(cur_phonetic, spk_vars[CUR_PHONETIC_ID].u.n.default_val, int, 0444); MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; module_init(…) …; module_exit(speakup_exit);
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