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 "spk_priv.h"
  22#include "speakup.h"
  23#include "serialio.h"
  24
  25#define DRV_VERSION "2.11"
  26#define SYNTH_CLEAR 0x18
  27#define PROCSPEECH '\r'
  28
  29static void synth_flush(struct spk_synth *synth);
  30
  31static struct var_t vars[] = {
  32        { CAPS_START, .u.s = {"\x05P+" } },
  33        { CAPS_STOP, .u.s = {"\x05P-" } },
  34        { RATE, .u.n = {"\x05R%d", 7, 0, 9, 0, 0, NULL } },
  35        { PITCH, .u.n = {"\x05P%d", 3, 0, 9, 0, 0, NULL } },
  36        { VOL, .u.n = {"\x05V%d", 9, 0, 9, 0, 0, NULL } },
  37        { TONE, .u.n = {"\x05T%c", 8, 0, 25, 65, 0, NULL } },
  38        { PUNCT, .u.n = {"\x05M%c", 0, 0, 3, 0, 0, "nsma" } },
  39        { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
  40        V_LAST_VAR
  41};
  42
  43/* These attributes will appear in /sys/accessibility/speakup/spkout. */
  44
  45static struct kobj_attribute caps_start_attribute =
  46        __ATTR(caps_start, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  47static struct kobj_attribute caps_stop_attribute =
  48        __ATTR(caps_stop, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  49static struct kobj_attribute pitch_attribute =
  50        __ATTR(pitch, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  51static struct kobj_attribute punct_attribute =
  52        __ATTR(punct, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  53static struct kobj_attribute rate_attribute =
  54        __ATTR(rate, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  55static struct kobj_attribute tone_attribute =
  56        __ATTR(tone, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  57static struct kobj_attribute vol_attribute =
  58        __ATTR(vol, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  59
  60static struct kobj_attribute delay_time_attribute =
  61        __ATTR(delay_time, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  62static struct kobj_attribute direct_attribute =
  63        __ATTR(direct, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  64static struct kobj_attribute full_time_attribute =
  65        __ATTR(full_time, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  66static struct kobj_attribute jiffy_delta_attribute =
  67        __ATTR(jiffy_delta, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  68static struct kobj_attribute trigger_time_attribute =
  69        __ATTR(trigger_time, S_IWUSR | S_IRUGO, spk_var_show, spk_var_store);
  70
  71/*
  72 * Create a group of attributes so that we can create and destroy them all
  73 * at once.
  74 */
  75static struct attribute *synth_attrs[] = {
  76        &caps_start_attribute.attr,
  77        &caps_stop_attribute.attr,
  78        &pitch_attribute.attr,
  79        &punct_attribute.attr,
  80        &rate_attribute.attr,
  81        &tone_attribute.attr,
  82        &vol_attribute.attr,
  83        &delay_time_attribute.attr,
  84        &direct_attribute.attr,
  85        &full_time_attribute.attr,
  86        &jiffy_delta_attribute.attr,
  87        &trigger_time_attribute.attr,
  88        NULL,   /* need to NULL terminate the list of attributes */
  89};
  90
  91static struct spk_synth synth_spkout = {
  92        .name = "spkout",
  93        .version = DRV_VERSION,
  94        .long_name = "Speakout",
  95        .init = "\005W1\005I2\005C3",
  96        .procspeech = PROCSPEECH,
  97        .clear = SYNTH_CLEAR,
  98        .delay = 500,
  99        .trigger = 50,
 100        .jiffies = 50,
 101        .full = 40000,
 102        .startup = SYNTH_START,
 103        .checkval = SYNTH_CHECK,
 104        .vars = vars,
 105        .probe = spk_serial_synth_probe,
 106        .release = spk_serial_release,
 107        .synth_immediate = spk_synth_immediate,
 108        .catch_up = spk_do_catch_up,
 109        .flush = synth_flush,
 110        .is_alive = spk_synth_is_alive_restart,
 111        .synth_adjust = NULL,
 112        .read_buff_add = NULL,
 113        .get_index = spk_serial_in_nowait,
 114        .indexing = {
 115                .command = "\x05[%c",
 116                .lowindex = 1,
 117                .highindex = 5,
 118                .currindex = 1,
 119        },
 120        .attributes = {
 121                .attrs = synth_attrs,
 122                .name = "spkout",
 123        },
 124};
 125
 126static void synth_flush(struct spk_synth *synth)
 127{
 128        int timeout = SPK_XMITR_TIMEOUT;
 129
 130        while (spk_serial_tx_busy()) {
 131                if (!--timeout)
 132                        break;
 133                udelay(1);
 134        }
 135        outb(SYNTH_CLEAR, speakup_info.port_tts);
 136}
 137
 138module_param_named(ser, synth_spkout.ser, int, S_IRUGO);
 139module_param_named(start, synth_spkout.startup, short, S_IRUGO);
 140
 141MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 142MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 143
 144module_spk_synth(synth_spkout);
 145
 146MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 147MODULE_AUTHOR("David Borowski");
 148MODULE_DESCRIPTION("Speakup support for Speak Out synthesizers");
 149MODULE_LICENSE("GPL");
 150MODULE_VERSION(DRV_VERSION);
 151
 152