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'
18 
19 static void synth_flush(struct spk_synth *synth);
20 
21 static struct var_t vars[] = {
22 	{ CAPS_START, .u.s = {"\x05P+" } },
23 	{ CAPS_STOP, .u.s = {"\x05P-" } },
24 	{ RATE, .u.n = {"\x05R%d", 7, 0, 9, 0, 0, NULL } },
25 	{ PITCH, .u.n = {"\x05P%d", 3, 0, 9, 0, 0, NULL } },
26 	{ VOL, .u.n = {"\x05V%d", 9, 0, 9, 0, 0, NULL } },
27 	{ TONE, .u.n = {"\x05T%c", 8, 0, 25, 65, 0, NULL } },
28 	{ PUNCT, .u.n = {"\x05M%c", 0, 0, 3, 0, 0, "nsma" } },
29 	{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
30 	V_LAST_VAR
31 };
32 
33 /* These attributes will appear in /sys/accessibility/speakup/spkout. */
34 
35 static struct kobj_attribute caps_start_attribute =
36 	__ATTR(caps_start, 0644, spk_var_show, spk_var_store);
37 static struct kobj_attribute caps_stop_attribute =
38 	__ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
39 static struct kobj_attribute pitch_attribute =
40 	__ATTR(pitch, 0644, spk_var_show, spk_var_store);
41 static struct kobj_attribute punct_attribute =
42 	__ATTR(punct, 0644, spk_var_show, spk_var_store);
43 static struct kobj_attribute rate_attribute =
44 	__ATTR(rate, 0644, spk_var_show, spk_var_store);
45 static struct kobj_attribute tone_attribute =
46 	__ATTR(tone, 0644, spk_var_show, spk_var_store);
47 static struct kobj_attribute vol_attribute =
48 	__ATTR(vol, 0644, spk_var_show, spk_var_store);
49 
50 static struct kobj_attribute delay_time_attribute =
51 	__ATTR(delay_time, 0644, spk_var_show, spk_var_store);
52 static struct kobj_attribute direct_attribute =
53 	__ATTR(direct, 0644, spk_var_show, spk_var_store);
54 static struct kobj_attribute full_time_attribute =
55 	__ATTR(full_time, 0644, spk_var_show, spk_var_store);
56 static struct kobj_attribute jiffy_delta_attribute =
57 	__ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
58 static struct kobj_attribute trigger_time_attribute =
59 	__ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
60 
61 /*
62  * Create a group of attributes so that we can create and destroy them all
63  * at once.
64  */
65 static struct attribute *synth_attrs[] = {
66 	&caps_start_attribute.attr,
67 	&caps_stop_attribute.attr,
68 	&pitch_attribute.attr,
69 	&punct_attribute.attr,
70 	&rate_attribute.attr,
71 	&tone_attribute.attr,
72 	&vol_attribute.attr,
73 	&delay_time_attribute.attr,
74 	&direct_attribute.attr,
75 	&full_time_attribute.attr,
76 	&jiffy_delta_attribute.attr,
77 	&trigger_time_attribute.attr,
78 	NULL,	/* need to NULL terminate the list of attributes */
79 };
80 
81 static struct spk_synth synth_spkout = {
82 	.name = "spkout",
83 	.version = DRV_VERSION,
84 	.long_name = "Speakout",
85 	.init = "\005W1\005I2\005C3",
86 	.procspeech = PROCSPEECH,
87 	.clear = SYNTH_CLEAR,
88 	.delay = 500,
89 	.trigger = 50,
90 	.jiffies = 50,
91 	.full = 40000,
92 	.dev_name = SYNTH_DEFAULT_DEV,
93 	.startup = SYNTH_START,
94 	.checkval = SYNTH_CHECK,
95 	.vars = vars,
96 	.io_ops = &spk_ttyio_ops,
97 	.probe = spk_ttyio_synth_probe,
98 	.release = spk_ttyio_release,
99 	.synth_immediate = spk_ttyio_synth_immediate,
100 	.catch_up = spk_do_catch_up,
101 	.flush = synth_flush,
102 	.is_alive = spk_synth_is_alive_restart,
103 	.synth_adjust = NULL,
104 	.read_buff_add = NULL,
105 	.get_index = spk_synth_get_index,
106 	.indexing = {
107 		.command = "\x05[%c",
108 		.lowindex = 1,
109 		.highindex = 5,
110 		.currindex = 1,
111 	},
112 	.attributes = {
113 		.attrs = synth_attrs,
114 		.name = "spkout",
115 	},
116 };
117 
118 static void synth_flush(struct spk_synth *synth)
119 {
120 	synth->io_ops->flush_buffer(synth);
121 	synth->io_ops->send_xchar(synth, SYNTH_CLEAR);
122 }
123 
124 module_param_named(ser, synth_spkout.ser, int, 0444);
125 module_param_named(dev, synth_spkout.dev_name, charp, 0444);
126 module_param_named(start, synth_spkout.startup, short, 0444);
127 
128 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
129 MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
130 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
131 
132 module_spk_synth(synth_spkout);
133 
134 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
135 MODULE_AUTHOR("David Borowski");
136 MODULE_DESCRIPTION("Speakup support for Speak Out synthesizers");
137 MODULE_LICENSE("GPL");
138 MODULE_VERSION(DRV_VERSION);
139 
140