drivers/staging/speakup/speakup_ltlk.c

   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  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * specificly written as a driver for the speakup screenreview
  23  * s not a general device driver.
  24  */
  25 #include "speakup.h"
  26 #include "spk_priv.h"
  27 #include "serialio.h"
  28 #include "speakup_dtlk.h" /* local header file for LiteTalk values */
  29
  30 #define DRV_VERSION "2.11"
  31 #define PROCSPEECH 0x0d
  32
  33 static int synth_probe(struct spk_synth *synth);
  34
  35 static struct var_t vars[] = {
  36         { CAPS_START, .u.s = {"\x01+35p" } },
  37         { CAPS_STOP, .u.s = {"\x01-35p" } },
  38         { RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL } },
  39         { PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL } },
  40         { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
  41         { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
  42         { PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL } },
  43         { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } },
  44         { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } },
  45         { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
  46         V_LAST_VAR
  47 };
  48
  49 /*
  50  * These attributes will appear in /sys/accessibility/speakup/ltlk.
  51  */
  52 static struct kobj_attribute caps_start_attribute =
  53         __ATTR(caps_start, USER_RW, spk_var_show, spk_var_store);
  54 static struct kobj_attribute caps_stop_attribute =
  55         __ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store);
  56 static struct kobj_attribute freq_attribute =
  57         __ATTR(freq, USER_RW, spk_var_show, spk_var_store);
  58 static struct kobj_attribute pitch_attribute =
  59         __ATTR(pitch, USER_RW, spk_var_show, spk_var_store);
  60 static struct kobj_attribute punct_attribute =
  61         __ATTR(punct, USER_RW, spk_var_show, spk_var_store);
  62 static struct kobj_attribute rate_attribute =
  63         __ATTR(rate, USER_RW, spk_var_show, spk_var_store);
  64 static struct kobj_attribute tone_attribute =
  65         __ATTR(tone, USER_RW, spk_var_show, spk_var_store);
  66 static struct kobj_attribute voice_attribute =
  67         __ATTR(voice, USER_RW, spk_var_show, spk_var_store);
  68 static struct kobj_attribute vol_attribute =
  69         __ATTR(vol, USER_RW, spk_var_show, spk_var_store);
  70
  71 static struct kobj_attribute delay_time_attribute =
  72         __ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store);
  73 static struct kobj_attribute direct_attribute =
  74         __ATTR(direct, USER_RW, spk_var_show, spk_var_store);
  75 static struct kobj_attribute full_time_attribute =
  76         __ATTR(full_time, ROOT_W, spk_var_show, spk_var_store);
  77 static struct kobj_attribute jiffy_delta_attribute =
  78         __ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store);
  79 static struct kobj_attribute trigger_time_attribute =
  80         __ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store);
  81
  82 /*
  83  * Create a group of attributes so that we can create and destroy them all
  84  * at once.
  85  */
  86 static struct attribute *synth_attrs[] = {
  87         &caps_start_attribute.attr,
  88         &caps_stop_attribute.attr,
  89         &freq_attribute.attr,
  90         &pitch_attribute.attr,
  91         &punct_attribute.attr,
  92         &rate_attribute.attr,
  93         &tone_attribute.attr,
  94         &voice_attribute.attr,
  95         &vol_attribute.attr,
  96         &delay_time_attribute.attr,
  97         &direct_attribute.attr,
  98         &full_time_attribute.attr,
  99         &jiffy_delta_attribute.attr,
 100         &trigger_time_attribute.attr,
 101         NULL,   /* need to NULL terminate the list of attributes */
 102 };
 103
 104 static struct spk_synth synth_ltlk = {
 105         .name = "ltlk",
 106         .version = DRV_VERSION,
 107         .long_name = "LiteTalk",
 108         .init = "\01@\x01\x31y\n\0",
 109         .procspeech = PROCSPEECH,
 110         .clear = SYNTH_CLEAR,
 111         .delay = 500,
 112         .trigger = 50,
 113         .jiffies = 50,
 114         .full = 40000,
 115         .startup = SYNTH_START,
 116         .checkval = SYNTH_CHECK,
 117         .vars = vars,
 118         .probe = synth_probe,
 119         .release = spk_serial_release,
 120         .synth_immediate = spk_synth_immediate,
 121         .catch_up = spk_do_catch_up,
 122         .flush = spk_synth_flush,
 123         .is_alive = spk_synth_is_alive_restart,
 124         .synth_adjust = NULL,
 125         .read_buff_add = NULL,
 126         .get_index = spk_serial_in_nowait,
 127         .indexing = {
 128                 .command = "\x01%di",
 129                 .lowindex = 1,
 130                 .highindex = 5,
 131                 .currindex = 1,
 132         },
 133         .attributes = {
 134                 .attrs = synth_attrs,
 135                 .name = "ltlk",
 136         },
 137 };
 138
 139 /* interrogate the LiteTalk and print its settings */
 140 static void synth_interrogate(struct spk_synth *synth)
 141 {
 142         unsigned char *t, i;
 143         unsigned char buf[50], rom_v[20];
 144         spk_synth_immediate(synth, "\x18\x01?");
 145         for (i = 0; i < 50; i++) {
 146                 buf[i] = spk_serial_in();
 147                 if (i > 2 && buf[i] == 0x7f)
 148                         break;
 149         }
 150         t = buf+2;
 151         for (i = 0; *t != '\r'; t++) {
 152                 rom_v[i] = *t;
 153                 if (++i >= 19)
 154                         break;
 155         }
 156         rom_v[i] = 0;
 157         pr_info("%s: ROM version: %s\n", synth->long_name, rom_v);
 158 }
 159
 160 static int synth_probe(struct spk_synth *synth)
 161 {
 162         int failed = 0;
 163
 164         failed = serial_synth_probe(synth);
 165         if (failed == 0)
 166                 synth_interrogate(synth);
 167         synth->alive = !failed;
 168         return failed;
 169 }
 170
 171 module_param_named(ser, synth_ltlk.ser, int, S_IRUGO);
 172 module_param_named(start, synth_ltlk.startup, short, S_IRUGO);
 173
 174 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 175 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 176
 177 static int __init ltlk_init(void)
 178 {
 179         return synth_add(&synth_ltlk);
 180 }
 181
 182 static void __exit ltlk_exit(void)
 183 {
 184         synth_remove(&synth_ltlk);
 185 }
 186
 187 module_init(ltlk_init);
 188 module_exit(ltlk_exit);
 189 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 190 MODULE_AUTHOR("David Borowski");
 191 MODULE_DESCRIPTION("Speakup support for DoubleTalk LT/LiteTalk synthesizers");
 192 MODULE_LICENSE("GPL");
 193 MODULE_VERSION(DRV_VERSION);
 194