drivers/staging/speakup/speakup_spkout.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 "spk_priv.h"
  26 #include "speakup.h"
  27 #include "serialio.h"
  28
  29 #define DRV_VERSION "2.11"
  30 #define SYNTH_CLEAR 0x18
  31 #define PROCSPEECH '\r'
  32
  33 static void synth_flush(struct spk_synth *synth);
  34
  35 static struct var_t vars[] = {
  36         { CAPS_START, .u.s = {"\x05P+" } },
  37         { CAPS_STOP, .u.s = {"\x05P-" } },
  38         { RATE, .u.n = {"\x05R%d", 7, 0, 9, 0, 0, NULL } },
  39         { PITCH, .u.n = {"\x05P%d", 3, 0, 9, 0, 0, NULL } },
  40         { VOL, .u.n = {"\x05V%d", 9, 0, 9, 0, 0, NULL } },
  41         { TONE, .u.n = {"\x05T%c", 8, 0, 25, 65, 0, NULL } },
  42         { PUNCT, .u.n = {"\x05M%c", 0, 0, 3, 0, 0, "nsma" } },
  43         { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
  44         V_LAST_VAR
  45 };
  46
  47 /*
  48  * These attributes will appear in /sys/accessibility/speakup/spkout.
  49  */
  50 static struct kobj_attribute caps_start_attribute =
  51         __ATTR(caps_start, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  52 static struct kobj_attribute caps_stop_attribute =
  53         __ATTR(caps_stop, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  54 static struct kobj_attribute pitch_attribute =
  55         __ATTR(pitch, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  56 static struct kobj_attribute punct_attribute =
  57         __ATTR(punct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  58 static struct kobj_attribute rate_attribute =
  59         __ATTR(rate, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  60 static struct kobj_attribute tone_attribute =
  61         __ATTR(tone, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  62 static struct kobj_attribute vol_attribute =
  63         __ATTR(vol, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  64
  65 static struct kobj_attribute delay_time_attribute =
  66         __ATTR(delay_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  67 static struct kobj_attribute direct_attribute =
  68         __ATTR(direct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  69 static struct kobj_attribute full_time_attribute =
  70         __ATTR(full_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  71 static struct kobj_attribute jiffy_delta_attribute =
  72         __ATTR(jiffy_delta, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  73 static struct kobj_attribute trigger_time_attribute =
  74         __ATTR(trigger_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
  75
  76 /*
  77  * Create a group of attributes so that we can create and destroy them all
  78  * at once.
  79  */
  80 static struct attribute *synth_attrs[] = {
  81         &caps_start_attribute.attr,
  82         &caps_stop_attribute.attr,
  83         &pitch_attribute.attr,
  84         &punct_attribute.attr,
  85         &rate_attribute.attr,
  86         &tone_attribute.attr,
  87         &vol_attribute.attr,
  88         &delay_time_attribute.attr,
  89         &direct_attribute.attr,
  90         &full_time_attribute.attr,
  91         &jiffy_delta_attribute.attr,
  92         &trigger_time_attribute.attr,
  93         NULL,   /* need to NULL terminate the list of attributes */
  94 };
  95
  96 static struct spk_synth synth_spkout = {
  97         .name = "spkout",
  98         .version = DRV_VERSION,
  99         .long_name = "Speakout",
 100         .init = "\005W1\005I2\005C3",
 101         .procspeech = PROCSPEECH,
 102         .clear = SYNTH_CLEAR,
 103         .delay = 500,
 104         .trigger = 50,
 105         .jiffies = 50,
 106         .full = 40000,
 107         .startup = SYNTH_START,
 108         .checkval = SYNTH_CHECK,
 109         .vars = vars,
 110         .probe = spk_serial_synth_probe,
 111         .release = spk_serial_release,
 112         .synth_immediate = spk_synth_immediate,
 113         .catch_up = spk_do_catch_up,
 114         .flush = synth_flush,
 115         .is_alive = spk_synth_is_alive_restart,
 116         .synth_adjust = NULL,
 117         .read_buff_add = NULL,
 118         .get_index = spk_serial_in_nowait,
 119         .indexing = {
 120                 .command = "\x05[%c",
 121                 .lowindex = 1,
 122                 .highindex = 5,
 123                 .currindex = 1,
 124         },
 125         .attributes = {
 126                 .attrs = synth_attrs,
 127                 .name = "spkout",
 128         },
 129 };
 130
 131 static void synth_flush(struct spk_synth *synth)
 132 {
 133         int timeout = SPK_XMITR_TIMEOUT;
 134
 135         while (spk_serial_tx_busy()) {
 136                 if (!--timeout)
 137                         break;
 138                 udelay(1);
 139         }
 140         outb(SYNTH_CLEAR, speakup_info.port_tts);
 141 }
 142
 143 module_param_named(ser, synth_spkout.ser, int, S_IRUGO);
 144 module_param_named(start, synth_spkout.startup, short, S_IRUGO);
 145
 146 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 147 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 148
 149 static int __init spkout_init(void)
 150 {
 151         return synth_add(&synth_spkout);
 152 }
 153
 154 static void __exit spkout_exit(void)
 155 {
 156         synth_remove(&synth_spkout);
 157 }
 158
 159 module_init(spkout_init);
 160 module_exit(spkout_exit);
 161 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 162 MODULE_AUTHOR("David Borowski");
 163 MODULE_DESCRIPTION("Speakup support for Speak Out synthesizers");
 164 MODULE_LICENSE("GPL");
 165 MODULE_VERSION(DRV_VERSION);
 166