drivers/accessibility/speakup/speakup_txprt.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  *
   6  * Copyright (C) 1998-99  Kirk Reiser.
   7  * Copyright (C) 2003 David Borowski.
   8  *
   9  * specificly written as a driver for the speakup screenreview
  10  * s not a general device driver.
  11  */
  12 #include "spk_priv.h"
  13 #include "speakup.h"
  14
  15 #define DRV_VERSION "2.11"
  16 #define SYNTH_CLEAR 0x18
  17 #define PROCSPEECH '\r' /* process speech char */
  18
  19 static struct var_t vars[] = {
  20         { CAPS_START, .u.s = {"\x05P8" } },
  21         { CAPS_STOP, .u.s = {"\x05P5" } },
  22         { RATE, .u.n = {"\x05R%d", 5, 0, 9, 0, 0, NULL } },
  23         { PITCH, .u.n = {"\x05P%d", 5, 0, 9, 0, 0, NULL } },
  24         { VOL, .u.n = {"\x05V%d", 5, 0, 9, 0, 0, NULL } },
  25         { TONE, .u.n = {"\x05T%c", 12, 0, 25, 61, 0, NULL } },
  26         { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
  27         V_LAST_VAR
  28          };
  29
  30 /* These attributes will appear in /sys/accessibility/speakup/txprt. */
  31
  32 static struct kobj_attribute caps_start_attribute =
  33         __ATTR(caps_start, 0644, spk_var_show, spk_var_store);
  34 static struct kobj_attribute caps_stop_attribute =
  35         __ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
  36 static struct kobj_attribute pitch_attribute =
  37         __ATTR(pitch, 0644, spk_var_show, spk_var_store);
  38 static struct kobj_attribute rate_attribute =
  39         __ATTR(rate, 0644, spk_var_show, spk_var_store);
  40 static struct kobj_attribute tone_attribute =
  41         __ATTR(tone, 0644, spk_var_show, spk_var_store);
  42 static struct kobj_attribute vol_attribute =
  43         __ATTR(vol, 0644, spk_var_show, spk_var_store);
  44
  45 static struct kobj_attribute delay_time_attribute =
  46         __ATTR(delay_time, 0644, spk_var_show, spk_var_store);
  47 static struct kobj_attribute direct_attribute =
  48         __ATTR(direct, 0644, spk_var_show, spk_var_store);
  49 static struct kobj_attribute full_time_attribute =
  50         __ATTR(full_time, 0644, spk_var_show, spk_var_store);
  51 static struct kobj_attribute jiffy_delta_attribute =
  52         __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
  53 static struct kobj_attribute trigger_time_attribute =
  54         __ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
  55
  56 /*
  57  * Create a group of attributes so that we can create and destroy them all
  58  * at once.
  59  */
  60 static struct attribute *synth_attrs[] = {
  61         &caps_start_attribute.attr,
  62         &caps_stop_attribute.attr,
  63         &pitch_attribute.attr,
  64         &rate_attribute.attr,
  65         &tone_attribute.attr,
  66         &vol_attribute.attr,
  67         &delay_time_attribute.attr,
  68         &direct_attribute.attr,
  69         &full_time_attribute.attr,
  70         &jiffy_delta_attribute.attr,
  71         &trigger_time_attribute.attr,
  72         NULL,   /* need to NULL terminate the list of attributes */
  73 };
  74
  75 static struct spk_synth synth_txprt = {
  76         .name = "txprt",
  77         .version = DRV_VERSION,
  78         .long_name = "Transport",
  79         .init = "\x05N1",
  80         .procspeech = PROCSPEECH,
  81         .clear = SYNTH_CLEAR,
  82         .delay = 500,
  83         .trigger = 50,
  84         .jiffies = 50,
  85         .full = 40000,
  86         .dev_name = SYNTH_DEFAULT_DEV,
  87         .startup = SYNTH_START,
  88         .checkval = SYNTH_CHECK,
  89         .vars = vars,
  90         .io_ops = &spk_ttyio_ops,
  91         .probe = spk_ttyio_synth_probe,
  92         .release = spk_ttyio_release,
  93         .synth_immediate = spk_ttyio_synth_immediate,
  94         .catch_up = spk_do_catch_up,
  95         .flush = spk_synth_flush,
  96         .is_alive = spk_synth_is_alive_restart,
  97         .synth_adjust = NULL,
  98         .read_buff_add = NULL,
  99         .get_index = NULL,
 100         .indexing = {
 101                 .command = NULL,
 102                 .lowindex = 0,
 103                 .highindex = 0,
 104                 .currindex = 0,
 105         },
 106         .attributes = {
 107                 .attrs = synth_attrs,
 108                 .name = "txprt",
 109         },
 110 };
 111
 112 module_param_named(ser, synth_txprt.ser, int, 0444);
 113 module_param_named(dev, synth_txprt.dev_name, charp, 0444);
 114 module_param_named(start, synth_txprt.startup, short, 0444);
 115
 116 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 117 MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
 118 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 119
 120 module_spk_synth(synth_txprt);
 121
 122 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 123 MODULE_AUTHOR("David Borowski");
 124 MODULE_DESCRIPTION("Speakup support for Transport synthesizers");
 125 MODULE_LICENSE("GPL");
 126 MODULE_VERSION(DRV_VERSION);
 127