xref: /linux/drivers/accessibility/speakup/speakup_bns.c (revision 702648721db590b3425c31ade294000e18808345)
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  * this code is specifically written as a driver for the speakup screenreview
10  * package and is 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 
20 enum default_vars_id {
21 	CAPS_START_ID = 0, CAPS_STOP_ID,
22 	RATE_ID, PITCH_ID,
23 	VOL_ID, TONE_ID,
24 	DIRECT_ID, V_LAST_VAR_ID,
25 	NB_ID
26 };
27 
28 static struct var_t vars[NB_ID] = {
29 	[CAPS_START_ID] = { CAPS_START, .u.s = {"\x05\x31\x32P" } },
30 	[CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"\x05\x38P" } },
31 	[RATE_ID] = { RATE, .u.n = {"\x05%dE", 8, 1, 16, 0, 0, NULL } },
32 	[PITCH_ID] = { PITCH, .u.n = {"\x05%dP", 8, 0, 16, 0, 0, NULL } },
33 	[VOL_ID] = { VOL, .u.n = {"\x05%dV", 8, 0, 16, 0, 0, NULL } },
34 	[TONE_ID] = { TONE, .u.n = {"\x05%dT", 8, 0, 16, 0, 0, NULL } },
35 	[DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
36 	V_LAST_VAR
37 };
38 
39 /*
40  * These attributes will appear in /sys/accessibility/speakup/bns.
41  */
42 static struct kobj_attribute caps_start_attribute =
43 	__ATTR(caps_start, 0644, spk_var_show, spk_var_store);
44 static struct kobj_attribute caps_stop_attribute =
45 	__ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
46 static struct kobj_attribute pitch_attribute =
47 	__ATTR(pitch, 0644, spk_var_show, spk_var_store);
48 static struct kobj_attribute rate_attribute =
49 	__ATTR(rate, 0644, spk_var_show, spk_var_store);
50 static struct kobj_attribute tone_attribute =
51 	__ATTR(tone, 0644, spk_var_show, spk_var_store);
52 static struct kobj_attribute vol_attribute =
53 	__ATTR(vol, 0644, spk_var_show, spk_var_store);
54 
55 static struct kobj_attribute delay_time_attribute =
56 	__ATTR(delay_time, 0644, spk_var_show, spk_var_store);
57 static struct kobj_attribute direct_attribute =
58 	__ATTR(direct, 0644, spk_var_show, spk_var_store);
59 static struct kobj_attribute full_time_attribute =
60 	__ATTR(full_time, 0644, spk_var_show, spk_var_store);
61 static struct kobj_attribute jiffy_delta_attribute =
62 	__ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
63 static struct kobj_attribute trigger_time_attribute =
64 	__ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
65 
66 /*
67  * Create a group of attributes so that we can create and destroy them all
68  * at once.
69  */
70 static struct attribute *synth_attrs[] = {
71 	&caps_start_attribute.attr,
72 	&caps_stop_attribute.attr,
73 	&pitch_attribute.attr,
74 	&rate_attribute.attr,
75 	&tone_attribute.attr,
76 	&vol_attribute.attr,
77 	&delay_time_attribute.attr,
78 	&direct_attribute.attr,
79 	&full_time_attribute.attr,
80 	&jiffy_delta_attribute.attr,
81 	&trigger_time_attribute.attr,
82 	NULL,	/* need to NULL terminate the list of attributes */
83 };
84 
85 static struct spk_synth synth_bns = {
86 	.name = "bns",
87 	.version = DRV_VERSION,
88 	.long_name = "Braille 'N Speak",
89 	.init = "\x05Z\x05\x43",
90 	.procspeech = PROCSPEECH,
91 	.clear = SYNTH_CLEAR,
92 	.delay = 500,
93 	.trigger = 50,
94 	.jiffies = 50,
95 	.full = 40000,
96 	.dev_name = SYNTH_DEFAULT_DEV,
97 	.startup = SYNTH_START,
98 	.checkval = SYNTH_CHECK,
99 	.vars = vars,
100 	.io_ops = &spk_ttyio_ops,
101 	.probe = spk_ttyio_synth_probe,
102 	.release = spk_ttyio_release,
103 	.synth_immediate = spk_ttyio_synth_immediate,
104 	.catch_up = spk_do_catch_up,
105 	.flush = spk_synth_flush,
106 	.is_alive = spk_synth_is_alive_restart,
107 	.synth_adjust = NULL,
108 	.read_buff_add = NULL,
109 	.get_index = NULL,
110 	.indexing = {
111 		.command = NULL,
112 		.lowindex = 0,
113 		.highindex = 0,
114 		.currindex = 0,
115 	},
116 	.attributes = {
117 		.attrs = synth_attrs,
118 		.name = "bns",
119 	},
120 };
121 
122 module_param_named(ser, synth_bns.ser, int, 0444);
123 module_param_named(dev, synth_bns.dev_name, charp, 0444);
124 module_param_named(start, synth_bns.startup, short, 0444);
125 module_param_named(rate, vars[RATE_ID].u.n.default_val, int, 0444);
126 module_param_named(pitch, vars[PITCH_ID].u.n.default_val, int, 0444);
127 module_param_named(vol, vars[VOL_ID].u.n.default_val, int, 0444);
128 module_param_named(tone, vars[TONE_ID].u.n.default_val, int, 0444);
129 module_param_named(direct, vars[DIRECT_ID].u.n.default_val, int, 0444);
130 
131 
132 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
133 MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
134 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
135 MODULE_PARM_DESC(rate, "Set the rate variable on load.");
136 MODULE_PARM_DESC(pitch, "Set the pitch variable on load.");
137 MODULE_PARM_DESC(vol, "Set the vol variable on load.");
138 MODULE_PARM_DESC(tone, "Set the tone variable on load.");
139 MODULE_PARM_DESC(direct, "Set the direct variable on load.");
140 
141 module_spk_synth(synth_bns);
142 
143 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
144 MODULE_AUTHOR("David Borowski");
145 MODULE_DESCRIPTION("Speakup support for Braille 'n Speak synthesizers");
146 MODULE_LICENSE("GPL");
147 MODULE_VERSION(DRV_VERSION);
148 
149