root/drivers/staging/speakup/speakup_dummy.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * originally written by: Kirk Reiser <kirk@braille.uwo.ca>
   4  * this version considerably modified by David Borowski, david575@rogers.com
   5  * eventually modified by Samuel Thibault <samuel.thibault@ens-lyon.org>
   6  *
   7  * Copyright (C) 1998-99  Kirk Reiser.
   8  * Copyright (C) 2003 David Borowski.
   9  * Copyright (C) 2007 Samuel Thibault.
  10  *
  11  * specificly written as a driver for the speakup screenreview
  12  * s not a general device driver.
  13  */
  14 #include "spk_priv.h"
  15 #include "speakup.h"
  16 
  17 #define PROCSPEECH '\n'
  18 #define DRV_VERSION "2.11"
  19 #define SYNTH_CLEAR '!'
  20 
  21 static struct var_t vars[] = {
  22         { CAPS_START, .u.s = {"CAPS_START\n" } },
  23         { CAPS_STOP, .u.s = {"CAPS_STOP\n" } },
  24         { PAUSE, .u.s = {"PAUSE\n"} },
  25         { RATE, .u.n = {"RATE %d\n", 8, 1, 16, 0, 0, NULL } },
  26         { PITCH, .u.n = {"PITCH %d\n", 8, 0, 16, 0, 0, NULL } },
  27         { VOL, .u.n = {"VOL %d\n", 8, 0, 16, 0, 0, NULL } },
  28         { TONE, .u.n = {"TONE %d\n", 8, 0, 16, 0, 0, NULL } },
  29         { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
  30         V_LAST_VAR
  31 };
  32 
  33 /*
  34  * These attributes will appear in /sys/accessibility/speakup/dummy.
  35  */
  36 static struct kobj_attribute caps_start_attribute =
  37         __ATTR(caps_start, 0644, spk_var_show, spk_var_store);
  38 static struct kobj_attribute caps_stop_attribute =
  39         __ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
  40 static struct kobj_attribute pitch_attribute =
  41         __ATTR(pitch, 0644, spk_var_show, spk_var_store);
  42 static struct kobj_attribute rate_attribute =
  43         __ATTR(rate, 0644, spk_var_show, spk_var_store);
  44 static struct kobj_attribute tone_attribute =
  45         __ATTR(tone, 0644, spk_var_show, spk_var_store);
  46 static struct kobj_attribute vol_attribute =
  47         __ATTR(vol, 0644, spk_var_show, spk_var_store);
  48 
  49 static struct kobj_attribute delay_time_attribute =
  50         __ATTR(delay_time, 0644, spk_var_show, spk_var_store);
  51 static struct kobj_attribute direct_attribute =
  52         __ATTR(direct, 0644, spk_var_show, spk_var_store);
  53 static struct kobj_attribute full_time_attribute =
  54         __ATTR(full_time, 0644, spk_var_show, spk_var_store);
  55 static struct kobj_attribute jiffy_delta_attribute =
  56         __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
  57 static struct kobj_attribute trigger_time_attribute =
  58         __ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
  59 
  60 /*
  61  * Create a group of attributes so that we can create and destroy them all
  62  * at once.
  63  */
  64 static struct attribute *synth_attrs[] = {
  65         &caps_start_attribute.attr,
  66         &caps_stop_attribute.attr,
  67         &pitch_attribute.attr,
  68         &rate_attribute.attr,
  69         &tone_attribute.attr,
  70         &vol_attribute.attr,
  71         &delay_time_attribute.attr,
  72         &direct_attribute.attr,
  73         &full_time_attribute.attr,
  74         &jiffy_delta_attribute.attr,
  75         &trigger_time_attribute.attr,
  76         NULL,   /* need to NULL terminate the list of attributes */
  77 };
  78 
  79 static struct spk_synth synth_dummy = {
  80         .name = "dummy",
  81         .version = DRV_VERSION,
  82         .long_name = "Dummy",
  83         .init = "Speakup\n",
  84         .procspeech = PROCSPEECH,
  85         .clear = SYNTH_CLEAR,
  86         .delay = 500,
  87         .trigger = 50,
  88         .jiffies = 50,
  89         .full = 40000,
  90         .dev_name = SYNTH_DEFAULT_DEV,
  91         .startup = SYNTH_START,
  92         .checkval = SYNTH_CHECK,
  93         .vars = vars,
  94         .io_ops = &spk_ttyio_ops,
  95         .probe = spk_ttyio_synth_probe,
  96         .release = spk_ttyio_release,
  97         .synth_immediate = spk_ttyio_synth_immediate,
  98         .catch_up = spk_do_catch_up_unicode,
  99         .flush = spk_synth_flush,
 100         .is_alive = spk_synth_is_alive_restart,
 101         .synth_adjust = NULL,
 102         .read_buff_add = NULL,
 103         .get_index = NULL,
 104         .indexing = {
 105                 .command = NULL,
 106                 .lowindex = 0,
 107                 .highindex = 0,
 108                 .currindex = 0,
 109         },
 110         .attributes = {
 111                 .attrs = synth_attrs,
 112                 .name = "dummy",
 113         },
 114 };
 115 
 116 module_param_named(ser, synth_dummy.ser, int, 0444);
 117 module_param_named(dev, synth_dummy.dev_name, charp, 0444);
 118 module_param_named(start, synth_dummy.startup, short, 0444);
 119 
 120 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 121 MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
 122 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 123 
 124 module_spk_synth(synth_dummy);
 125 
 126 MODULE_AUTHOR("Samuel Thibault <samuel.thibault@ens-lyon.org>");
 127 MODULE_DESCRIPTION("Speakup support for text console");
 128 MODULE_LICENSE("GPL");
 129 MODULE_VERSION(DRV_VERSION);
 130