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  * specifically 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 	{ INFLECTION, .u.n = {"INFLECTION %d\n", 8, 0, 16, 0, 0, NULL } },
28 	{ VOL, .u.n = {"VOL %d\n", 8, 0, 16, 0, 0, NULL } },
29 	{ TONE, .u.n = {"TONE %d\n", 8, 0, 16, 0, 0, NULL } },
30 	{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
31 	V_LAST_VAR
32 };
33 
34 /*
35  * These attributes will appear in /sys/accessibility/speakup/dummy.
36  */
37 static struct kobj_attribute caps_start_attribute =
38 	__ATTR(caps_start, 0644, spk_var_show, spk_var_store);
39 static struct kobj_attribute caps_stop_attribute =
40 	__ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
41 static struct kobj_attribute pitch_attribute =
42 	__ATTR(pitch, 0644, spk_var_show, spk_var_store);
43 static struct kobj_attribute inflection_attribute =
44 	__ATTR(inflection, 0644, spk_var_show, spk_var_store);
45 static struct kobj_attribute rate_attribute =
46 	__ATTR(rate, 0644, spk_var_show, spk_var_store);
47 static struct kobj_attribute tone_attribute =
48 	__ATTR(tone, 0644, spk_var_show, spk_var_store);
49 static struct kobj_attribute vol_attribute =
50 	__ATTR(vol, 0644, spk_var_show, spk_var_store);
51 
52 static struct kobj_attribute delay_time_attribute =
53 	__ATTR(delay_time, 0644, spk_var_show, spk_var_store);
54 static struct kobj_attribute direct_attribute =
55 	__ATTR(direct, 0644, spk_var_show, spk_var_store);
56 static struct kobj_attribute full_time_attribute =
57 	__ATTR(full_time, 0644, spk_var_show, spk_var_store);
58 static struct kobj_attribute jiffy_delta_attribute =
59 	__ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
60 static struct kobj_attribute trigger_time_attribute =
61 	__ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
62 
63 /*
64  * Create a group of attributes so that we can create and destroy them all
65  * at once.
66  */
67 static struct attribute *synth_attrs[] = {
68 	&caps_start_attribute.attr,
69 	&caps_stop_attribute.attr,
70 	&pitch_attribute.attr,
71 	&inflection_attribute.attr,
72 	&rate_attribute.attr,
73 	&tone_attribute.attr,
74 	&vol_attribute.attr,
75 	&delay_time_attribute.attr,
76 	&direct_attribute.attr,
77 	&full_time_attribute.attr,
78 	&jiffy_delta_attribute.attr,
79 	&trigger_time_attribute.attr,
80 	NULL,	/* need to NULL terminate the list of attributes */
81 };
82 
83 static void read_buff_add(u_char c)
84 {
85 	pr_info("speakup_dummy: got character %02x\n", c);
86 }
87 
88 static struct spk_synth synth_dummy = {
89 	.name = "dummy",
90 	.version = DRV_VERSION,
91 	.long_name = "Dummy",
92 	.init = "Speakup\n",
93 	.procspeech = PROCSPEECH,
94 	.clear = SYNTH_CLEAR,
95 	.delay = 500,
96 	.trigger = 50,
97 	.jiffies = 50,
98 	.full = 40000,
99 	.dev_name = SYNTH_DEFAULT_DEV,
100 	.startup = SYNTH_START,
101 	.checkval = SYNTH_CHECK,
102 	.vars = vars,
103 	.io_ops = &spk_ttyio_ops,
104 	.probe = spk_ttyio_synth_probe,
105 	.release = spk_ttyio_release,
106 	.synth_immediate = spk_ttyio_synth_immediate,
107 	.catch_up = spk_do_catch_up_unicode,
108 	.flush = spk_synth_flush,
109 	.is_alive = spk_synth_is_alive_restart,
110 	.synth_adjust = NULL,
111 	.read_buff_add = read_buff_add,
112 	.get_index = NULL,
113 	.indexing = {
114 		.command = NULL,
115 		.lowindex = 0,
116 		.highindex = 0,
117 		.currindex = 0,
118 	},
119 	.attributes = {
120 		.attrs = synth_attrs,
121 		.name = "dummy",
122 	},
123 };
124 
125 module_param_named(ser, synth_dummy.ser, int, 0444);
126 module_param_named(dev, synth_dummy.dev_name, charp, 0444);
127 module_param_named(start, synth_dummy.startup, short, 0444);
128 
129 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
130 MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
131 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
132 
133 module_spk_synth(synth_dummy);
134 
135 MODULE_AUTHOR("Samuel Thibault <samuel.thibault@ens-lyon.org>");
136 MODULE_DESCRIPTION("Speakup support for text console");
137 MODULE_LICENSE("GPL");
138 MODULE_VERSION(DRV_VERSION);
139 
140