LXR linux/drivers/staging/speakup/speakup

   1/*
   2 * originally written by: Kirk Reiser <kirk@braille.uwo.ca>
   3* this version considerably modified by David Borowski, david575@rogers.com
   4 *
   5 * Copyright (C) 1998-99  Kirk Reiser.
   6 * Copyright (C) 2003 David Borowski.
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * specificly written as a driver for the speakup screenreview
  19 * s not a general device driver.
  20 */
  21#include "speakup.h"
  22#include "spk_priv.h"
  23#include "serialio.h"
  24#include "speakup_dtlk.h" /* local header file for LiteTalk values */
  25
  26#define DRV_VERSION "2.11"
  27#define PROCSPEECH 0x0d
  28
  29static int synth_probe(struct spk_synth *synth);
  30
  31static struct var_t vars[] = {
  32        { CAPS_START, .u.s = {"\x01+35p" } },
  33        { CAPS_STOP, .u.s = {"\x01-35p" } },
  34        { RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL } },
  35        { PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL } },
  36        { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
  37        { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
  38        { PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL } },
  39        { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } },
  40        { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } },
  41        { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
  42        V_LAST_VAR
  43};
  44
  45/*
  46 * These attributes will appear in /sys/accessibility/speakup/ltlk.
  47 */
  48static struct kobj_attribute caps_start_attribute =
  49        __ATTR(caps_start, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  50static struct kobj_attribute caps_stop_attribute =
  51        __ATTR(caps_stop, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  52static struct kobj_attribute freq_attribute =
  53        __ATTR(freq, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  54static struct kobj_attribute pitch_attribute =
  55        __ATTR(pitch, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  56static struct kobj_attribute punct_attribute =
  57        __ATTR(punct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  58static struct kobj_attribute rate_attribute =
  59        __ATTR(rate, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  60static struct kobj_attribute tone_attribute =
  61        __ATTR(tone, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  62static struct kobj_attribute voice_attribute =
  63        __ATTR(voice, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  64static struct kobj_attribute vol_attribute =
  65        __ATTR(vol, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  66
  67static struct kobj_attribute delay_time_attribute =
  68        __ATTR(delay_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  69static struct kobj_attribute direct_attribute =
  70        __ATTR(direct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  71static struct kobj_attribute full_time_attribute =
  72        __ATTR(full_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  73static struct kobj_attribute jiffy_delta_attribute =
  74        __ATTR(jiffy_delta, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  75static struct kobj_attribute trigger_time_attribute =
  76        __ATTR(trigger_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  77
  78/*
  79 * Create a group of attributes so that we can create and destroy them all
  80 * at once.
  81 */
  82static struct attribute *synth_attrs[] = {
  83        &caps_start_attribute.attr,
  84        &caps_stop_attribute.attr,
  85        &freq_attribute.attr,
  86        &pitch_attribute.attr,
  87        &punct_attribute.attr,
  88        &rate_attribute.attr,
  89        &tone_attribute.attr,
  90        &voice_attribute.attr,
  91        &vol_attribute.attr,
  92        &delay_time_attribute.attr,
  93        &direct_attribute.attr,
  94        &full_time_attribute.attr,
  95        &jiffy_delta_attribute.attr,
  96        &trigger_time_attribute.attr,
  97        NULL,   /* need to NULL terminate the list of attributes */
  98};
  99
 100static struct spk_synth synth_ltlk = {
 101        .name = "ltlk",
 102        .version = DRV_VERSION,
 103        .long_name = "LiteTalk",
 104        .init = "\01@\x01\x31y\n\0",
 105        .procspeech = PROCSPEECH,
 106        .clear = SYNTH_CLEAR,
 107        .delay = 500,
 108        .trigger = 50,
 109        .jiffies = 50,
 110        .full = 40000,
 111        .startup = SYNTH_START,
 112        .checkval = SYNTH_CHECK,
 113        .vars = vars,
 114        .probe = synth_probe,
 115        .release = spk_serial_release,
 116        .synth_immediate = spk_synth_immediate,
 117        .catch_up = spk_do_catch_up,
 118        .flush = spk_synth_flush,
 119        .is_alive = spk_synth_is_alive_restart,
 120        .synth_adjust = NULL,
 121        .read_buff_add = NULL,
 122        .get_index = spk_serial_in_nowait,
 123        .indexing = {
 124                .command = "\x01%di",
 125                .lowindex = 1,
 126                .highindex = 5,
 127                .currindex = 1,
 128        },
 129        .attributes = {
 130                .attrs = synth_attrs,
 131                .name = "ltlk",
 132        },
 133};
 134
 135/* interrogate the LiteTalk and print its settings */
 136static void synth_interrogate(struct spk_synth *synth)
 137{
 138        unsigned char *t, i;
 139        unsigned char buf[50], rom_v[20];
 140
 141        spk_synth_immediate(synth, "\x18\x01?");
 142        for (i = 0; i < 50; i++) {
 143                buf[i] = spk_serial_in();
 144                if (i > 2 && buf[i] == 0x7f)
 145                        break;
 146        }
 147        t = buf+2;
 148        for (i = 0; *t != '\r'; t++) {
 149                rom_v[i] = *t;
 150                if (++i >= 19)
 151                        break;
 152        }
 153        rom_v[i] = 0;
 154        pr_info("%s: ROM version: %s\n", synth->long_name, rom_v);
 155}
 156
 157static int synth_probe(struct spk_synth *synth)
 158{
 159        int failed = 0;
 160
 161        failed = spk_serial_synth_probe(synth);
 162        if (failed == 0)
 163                synth_interrogate(synth);
 164        synth->alive = !failed;
 165        return failed;
 166}
 167
 168module_param_named(ser, synth_ltlk.ser, int, S_IRUGO);
 169module_param_named(start, synth_ltlk.startup, short, S_IRUGO);
 170
 171MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 172MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 173
 174module_spk_synth(synth_ltlk);
 175
 176MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 177MODULE_AUTHOR("David Borowski");
 178MODULE_DESCRIPTION("Speakup support for DoubleTalk LT/LiteTalk synthesizers");
 179MODULE_LICENSE("GPL");
 180MODULE_VERSION(DRV_VERSION);
 181
 182