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* originally written by: Kirk Reiser <kirk@braille.uwo.ca>
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* this version considerably modified by David Borowski, david575@rogers.com
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* Copyright (C) 1998-99 Kirk Reiser.
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* Copyright (C) 2003 David Borowski.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* specificly written as a driver for the speakup screenreview
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* s not a general device driver.
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#include "speakup_dtlk.h" /* local header file for LiteTalk values */
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#define DRV_VERSION "2.11"
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#define PROCSPEECH 0x0d
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static int synth_probe(struct spk_synth *synth);
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static struct var_t vars[] = {
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{ CAPS_START, .u.s = {"\x01+35p" } },
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{ CAPS_STOP, .u.s = {"\x01-35p" } },
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{ RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL } },
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{ PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL } },
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{ VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
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{ TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
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{ PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL } },
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{ VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } },
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{ FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } },
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{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
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* These attributes will appear in /sys/accessibility/speakup/ltlk.
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static struct kobj_attribute caps_start_attribute =
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__ATTR(caps_start, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute caps_stop_attribute =
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__ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute freq_attribute =
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__ATTR(freq, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute pitch_attribute =
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__ATTR(pitch, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute punct_attribute =
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__ATTR(punct, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute rate_attribute =
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__ATTR(rate, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute tone_attribute =
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__ATTR(tone, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute voice_attribute =
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__ATTR(voice, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute vol_attribute =
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__ATTR(vol, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute delay_time_attribute =
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__ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store);
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static struct kobj_attribute direct_attribute =
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__ATTR(direct, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute full_time_attribute =
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__ATTR(full_time, ROOT_W, spk_var_show, spk_var_store);
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static struct kobj_attribute jiffy_delta_attribute =
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__ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store);
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static struct kobj_attribute trigger_time_attribute =
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__ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store);
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* Create a group of attributes so that we can create and destroy them all
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static struct attribute *synth_attrs[] = {
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&caps_start_attribute.attr,
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&caps_stop_attribute.attr,
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&pitch_attribute.attr,
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&punct_attribute.attr,
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&voice_attribute.attr,
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&delay_time_attribute.attr,
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&direct_attribute.attr,
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&full_time_attribute.attr,
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&jiffy_delta_attribute.attr,
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&trigger_time_attribute.attr,
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NULL, /* need to NULL terminate the list of attributes */
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static struct spk_synth synth_ltlk = {
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.version = DRV_VERSION,
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.long_name = "LiteTalk",
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.init = "\01@\x01\x31y\n\0",
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.procspeech = PROCSPEECH,
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.clear = SYNTH_CLEAR,
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.startup = SYNTH_START,
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.checkval = SYNTH_CHECK,
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.probe = synth_probe,
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.release = spk_serial_release,
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.synth_immediate = spk_synth_immediate,
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.catch_up = spk_do_catch_up,
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.flush = spk_synth_flush,
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.is_alive = spk_synth_is_alive_restart,
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.synth_adjust = NULL,
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.read_buff_add = NULL,
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.get_index = spk_serial_in_nowait,
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.command = "\x01%di",
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.attrs = synth_attrs,
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/* interrogate the LiteTalk and print its settings */
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static void synth_interrogate(struct spk_synth *synth)
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unsigned char buf[50], rom_v[20];
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spk_synth_immediate(synth, "\x18\x01?");
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for (i = 0; i < 50; i++) {
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buf[i] = spk_serial_in();
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if (i > 2 && buf[i] == 0x7f)
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for (i = 0; *t != '\r'; t++) {
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pr_info("%s: ROM version: %s\n", synth->long_name, rom_v);
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static int synth_probe(struct spk_synth *synth)
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failed = serial_synth_probe(synth);
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synth_interrogate(synth);
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synth->alive = !failed;
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module_param_named(ser, synth_ltlk.ser, int, S_IRUGO);
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module_param_named(start, synth_ltlk.startup, short, S_IRUGO);
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MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
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MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
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static int __init ltlk_init(void)
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return synth_add(&synth_ltlk);
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static void __exit ltlk_exit(void)
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synth_remove(&synth_ltlk);
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module_init(ltlk_init);
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module_exit(ltlk_exit);
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MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
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MODULE_AUTHOR("David Borowski");
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MODULE_DESCRIPTION("Speakup support for DoubleTalk LT/LiteTalk synthesizers");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_VERSION);