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 * specifically 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 /* flush synth buffer */
17#define PROCSPEECH '\r' /* start synth processing speech char */
18
19static int synth_probe(struct spk_synth *synth);
20static void synth_flush(struct spk_synth *synth);
21
22
23enum default_vars_id {
24 CAPS_START_ID = 0, CAPS_STOP_ID,
25 RATE_ID, PITCH_ID,
26 VOL_ID, TONE_ID, PUNCT_ID,
27 DIRECT_ID, V_LAST_VAR_ID,
28 NB_ID
29};
30
31static struct var_t vars[NB_ID] = {
32 [CAPS_START_ID] = { CAPS_START, .u.s = {"\x05[f99]" } },
33 [CAPS_STOP_ID] = { .var_id: CAPS_STOP, .u.s = {"\x05[f80]" } },
34 [RATE_ID] = { .var_id: RATE, .u.n = {"\x05[r%d]", 10, 0, 20, 100, -10, NULL } },
35 [PITCH_ID] = { .var_id: PITCH, .u.n = {"\x05[f%d]", 80, 39, 4500, 0, 0, NULL } },
36 [VOL_ID] = { .var_id: VOL, .u.n = {"\x05[g%d]", 21, 0, 40, 0, 0, NULL } },
37 [TONE_ID] = { .var_id: TONE, .u.n = {"\x05[s%d]", 9, 0, 63, 0, 0, NULL } },
38 [PUNCT_ID] = { .var_id: PUNCT, .u.n = {"\x05[A%c]", 0, 0, 3, 0, 0, "nmsa" } },
39 [DIRECT_ID] = { .var_id: DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
40 V_LAST_VAR
41};
42
43/*
44 * These attributes will appear in /sys/accessibility/speakup/audptr.
45 */
46static struct kobj_attribute caps_start_attribute =
47 __ATTR(caps_start, 0644, spk_var_show, spk_var_store);
48static struct kobj_attribute caps_stop_attribute =
49 __ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
50static struct kobj_attribute pitch_attribute =
51 __ATTR(pitch, 0644, spk_var_show, spk_var_store);
52static struct kobj_attribute punct_attribute =
53 __ATTR(punct, 0644, spk_var_show, spk_var_store);
54static struct kobj_attribute rate_attribute =
55 __ATTR(rate, 0644, spk_var_show, spk_var_store);
56static struct kobj_attribute tone_attribute =
57 __ATTR(tone, 0644, spk_var_show, spk_var_store);
58static struct kobj_attribute vol_attribute =
59 __ATTR(vol, 0644, spk_var_show, spk_var_store);
60
61static struct kobj_attribute delay_time_attribute =
62 __ATTR(delay_time, 0644, spk_var_show, spk_var_store);
63static struct kobj_attribute direct_attribute =
64 __ATTR(direct, 0644, spk_var_show, spk_var_store);
65static struct kobj_attribute full_time_attribute =
66 __ATTR(full_time, 0644, spk_var_show, spk_var_store);
67static struct kobj_attribute jiffy_delta_attribute =
68 __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
69static struct kobj_attribute trigger_time_attribute =
70 __ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
71
72/*
73 * Create a group of attributes so that we can create and destroy them all
74 * at once.
75 */
76static struct attribute *synth_attrs[] = {
77 &caps_start_attribute.attr,
78 &caps_stop_attribute.attr,
79 &pitch_attribute.attr,
80 &punct_attribute.attr,
81 &rate_attribute.attr,
82 &tone_attribute.attr,
83 &vol_attribute.attr,
84 &delay_time_attribute.attr,
85 &direct_attribute.attr,
86 &full_time_attribute.attr,
87 &jiffy_delta_attribute.attr,
88 &trigger_time_attribute.attr,
89 NULL, /* need to NULL terminate the list of attributes */
90};
91
92static struct spk_synth synth_audptr = {
93 .name = "audptr",
94 .version = DRV_VERSION,
95 .long_name = "Audapter",
96 .init = "\x05[D1]\x05[Ol]",
97 .procspeech = PROCSPEECH,
98 .clear = SYNTH_CLEAR,
99 .delay = 400,
100 .trigger = 50,
101 .jiffies = 30,
102 .full = 18000,
103 .dev_name = SYNTH_DEFAULT_DEV,
104 .startup = SYNTH_START,
105 .checkval = SYNTH_CHECK,
106 .vars = vars,
107 .io_ops = &spk_ttyio_ops,
108 .probe = synth_probe,
109 .release = spk_ttyio_release,
110 .synth_immediate = spk_ttyio_synth_immediate,
111 .catch_up = spk_do_catch_up,
112 .flush = synth_flush,
113 .is_alive = spk_synth_is_alive_restart,
114 .synth_adjust = NULL,
115 .read_buff_add = NULL,
116 .get_index = NULL,
117 .indexing = {
118 .command = NULL,
119 .lowindex = 0,
120 .highindex = 0,
121 .currindex = 0,
122 },
123 .attributes = {
124 .attrs = synth_attrs,
125 .name = "audptr",
126 },
127};
128
129static void synth_flush(struct spk_synth *synth)
130{
131 synth->io_ops->flush_buffer(synth);
132 synth->io_ops->send_xchar(synth, SYNTH_CLEAR);
133 synth->io_ops->synth_out(synth, PROCSPEECH);
134}
135
136static void synth_version(struct spk_synth *synth)
137{
138 unsigned i;
139 char synth_id[33];
140
141 synth->synth_immediate(synth, "\x05[Q]");
142 synth_id[0] = synth->io_ops->synth_in(synth);
143 if (synth_id[0] != 'A')
144 return;
145
146 for (i = 1; i < sizeof(synth_id) - 1; i++) {
147 /* read version string from synth */
148 synth_id[i] = synth->io_ops->synth_in(synth);
149 if (synth_id[i] == '\n')
150 break;
151 }
152 synth_id[i] = '\0';
153 pr_info("%s version: %s", synth->long_name, synth_id);
154}
155
156static int synth_probe(struct spk_synth *synth)
157{
158 int failed;
159
160 failed = spk_ttyio_synth_probe(synth);
161 if (failed == 0)
162 synth_version(synth);
163 synth->alive = !failed;
164 return 0;
165}
166
167module_param_named(ser, synth_audptr.ser, int, 0444);
168module_param_named(dev, synth_audptr.dev_name, charp, 0444);
169module_param_named(start, synth_audptr.startup, short, 0444);
170module_param_named(rate, vars[RATE_ID].u.n.default_val, int, 0444);
171module_param_named(pitch, vars[PITCH_ID].u.n.default_val, int, 0444);
172module_param_named(vol, vars[VOL_ID].u.n.default_val, int, 0444);
173module_param_named(tone, vars[TONE_ID].u.n.default_val, int, 0444);
174module_param_named(punct, vars[PUNCT_ID].u.n.default_val, int, 0444);
175module_param_named(direct, vars[DIRECT_ID].u.n.default_val, int, 0444);
176
177
178
179MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
180MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
181MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
182MODULE_PARM_DESC(rate, "Set the rate variable on load.");
183MODULE_PARM_DESC(pitch, "Set the pitch variable on load.");
184MODULE_PARM_DESC(vol, "Set the vol variable on load.");
185MODULE_PARM_DESC(tone, "Set the tone variable on load.");
186MODULE_PARM_DESC(punct, "Set the punct variable on load.");
187MODULE_PARM_DESC(direct, "Set the direct variable on load.");
188
189
190module_spk_synth(synth_audptr);
191
192MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
193MODULE_AUTHOR("David Borowski");
194MODULE_DESCRIPTION("Speakup support for Audapter synthesizer");
195MODULE_LICENSE("GPL");
196MODULE_VERSION(DRV_VERSION);
197
198

source code of linux/drivers/accessibility/speakup/speakup_audptr.c