drivers/staging/speakup/speakup_audptr.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  * 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 /* flush synth buffer */
  27 #define PROCSPEECH '\r' /* start synth processing speech char */
  28
  29 static int synth_probe(struct spk_synth *synth);
  30 static void synth_flush(struct spk_synth *synth);
  31
  32 static struct var_t vars[] = {
  33         { CAPS_START, .u.s = {"\x05[f99]" } },
  34         { CAPS_STOP, .u.s = {"\x05[f80]" } },
  35         { RATE, .u.n = {"\x05[r%d]", 10, 0, 20, 100, -10, NULL } },
  36         { PITCH, .u.n = {"\x05[f%d]", 80, 39, 4500, 0, 0, NULL } },
  37         { VOL, .u.n = {"\x05[g%d]", 21, 0, 40, 0, 0, NULL } },
  38         { TONE, .u.n = {"\x05[s%d]", 9, 0, 63, 0, 0, NULL } },
  39         { PUNCT, .u.n = {"\x05[A%c]", 0, 0, 3, 0, 0, "nmsa" } },
  40         { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
  41         V_LAST_VAR
  42 };
  43
  44 /*
  45  * These attributes will appear in /sys/accessibility/speakup/audptr.
  46  */
  47 static struct kobj_attribute caps_start_attribute =
  48         __ATTR(caps_start, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  49 static struct kobj_attribute caps_stop_attribute =
  50         __ATTR(caps_stop, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  51 static struct kobj_attribute pitch_attribute =
  52         __ATTR(pitch, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  53 static struct kobj_attribute punct_attribute =
  54         __ATTR(punct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  55 static struct kobj_attribute rate_attribute =
  56         __ATTR(rate, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  57 static struct kobj_attribute tone_attribute =
  58         __ATTR(tone, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  59 static struct kobj_attribute vol_attribute =
  60         __ATTR(vol, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  61
  62 static struct kobj_attribute delay_time_attribute =
  63         __ATTR(delay_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  64 static struct kobj_attribute direct_attribute =
  65         __ATTR(direct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  66 static struct kobj_attribute full_time_attribute =
  67         __ATTR(full_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  68 static struct kobj_attribute jiffy_delta_attribute =
  69         __ATTR(jiffy_delta, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  70 static struct kobj_attribute trigger_time_attribute =
  71         __ATTR(trigger_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  72
  73 /*
  74  * Create a group of attributes so that we can create and destroy them all
  75  * at once.
  76  */
  77 static struct attribute *synth_attrs[] = {
  78         &caps_start_attribute.attr,
  79         &caps_stop_attribute.attr,
  80         &pitch_attribute.attr,
  81         &punct_attribute.attr,
  82         &rate_attribute.attr,
  83         &tone_attribute.attr,
  84         &vol_attribute.attr,
  85         &delay_time_attribute.attr,
  86         &direct_attribute.attr,
  87         &full_time_attribute.attr,
  88         &jiffy_delta_attribute.attr,
  89         &trigger_time_attribute.attr,
  90         NULL,   /* need to NULL terminate the list of attributes */
  91 };
  92
  93 static struct spk_synth synth_audptr = {
  94         .name = "audptr",
  95         .version = DRV_VERSION,
  96         .long_name = "Audapter",
  97         .init = "\x05[D1]\x05[Ol]",
  98         .procspeech = PROCSPEECH,
  99         .clear = SYNTH_CLEAR,
 100         .delay = 400,
 101         .trigger = 50,
 102         .jiffies = 30,
 103         .full = 18000,
 104         .startup = SYNTH_START,
 105         .checkval = SYNTH_CHECK,
 106         .vars = vars,
 107         .probe = synth_probe,
 108         .release = spk_serial_release,
 109         .synth_immediate = spk_synth_immediate,
 110         .catch_up = spk_do_catch_up,
 111         .flush = synth_flush,
 112         .is_alive = spk_synth_is_alive_restart,
 113         .synth_adjust = NULL,
 114         .read_buff_add = NULL,
 115         .get_index = NULL,
 116         .indexing = {
 117                 .command = NULL,
 118                 .lowindex = 0,
 119                 .highindex = 0,
 120                 .currindex = 0,
 121         },
 122         .attributes = {
 123                 .attrs = synth_attrs,
 124                 .name = "audptr",
 125         },
 126 };
 127
 128 static void synth_flush(struct spk_synth *synth)
 129 {
 130         int timeout = SPK_XMITR_TIMEOUT;
 131
 132         while (spk_serial_tx_busy()) {
 133                 if (!--timeout)
 134                         break;
 135                 udelay(1);
 136         }
 137         outb(SYNTH_CLEAR, speakup_info.port_tts);
 138         spk_serial_out(PROCSPEECH);
 139 }
 140
 141 static void synth_version(struct spk_synth *synth)
 142 {
 143         unsigned char test = 0;
 144         char synth_id[40] = "";
 145
 146         spk_synth_immediate(synth, "\x05[Q]");
 147         synth_id[test] = spk_serial_in();
 148         if (synth_id[test] == 'A') {
 149                 do {
 150                         /* read version string from synth */
 151                         synth_id[++test] = spk_serial_in();
 152                 } while (synth_id[test] != '\n' && test < 32);
 153                 synth_id[++test] = 0x00;
 154         }
 155         if (synth_id[0] == 'A')
 156                 pr_info("%s version: %s", synth->long_name, synth_id);
 157 }
 158
 159 static int synth_probe(struct spk_synth *synth)
 160 {
 161         int failed;
 162
 163         failed = spk_serial_synth_probe(synth);
 164         if (failed == 0)
 165                 synth_version(synth);
 166         synth->alive = !failed;
 167         return 0;
 168 }
 169
 170 module_param_named(ser, synth_audptr.ser, int, S_IRUGO);
 171 module_param_named(start, synth_audptr.startup, short, S_IRUGO);
 172
 173 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 174 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 175
 176 module_spk_synth(synth_audptr);
 177
 178 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 179 MODULE_AUTHOR("David Borowski");
 180 MODULE_DESCRIPTION("Speakup support for Audapter synthesizer");
 181 MODULE_LICENSE("GPL");
 182 MODULE_VERSION(DRV_VERSION);
 183