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/drivers/staging/speakup/speakup_audptr.c

https://bitbucket.org/cyanogenmod/android_kernel_asus_tf300t
C | 195 lines | 146 code | 17 blank | 32 comment | 11 complexity | f8061ca1d217471067c7a4856b52a1b5 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
  1/*
  2 * originally written by: Kirk Reiser <kirk@braille.uwo.ca>
  3 * this version considerably modified by David Borowski, david575@rogers.com
  4 *
  5 * Copyright (C) 1998-99  Kirk Reiser.
  6 * Copyright (C) 2003 David Borowski.
  7 *
  8 * This program is free software; you can redistribute it and/or modify
  9 * it under the terms of the GNU General Public License as published by
 10 * the Free Software Foundation; either version 2 of the License, or
 11 * (at your option) any later version.
 12 *
 13 * This program is distributed in the hope that it will be useful,
 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16 * GNU General Public License for more details.
 17 *
 18 * You should have received a copy of the GNU General Public License
 19 * along with this program; if not, write to the Free Software
 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 21 *
 22 * specificly written as a driver for the speakup screenreview
 23 * s not a general device driver.
 24 */
 25#include "spk_priv.h"
 26#include "speakup.h"
 27#include "serialio.h"
 28
 29#define DRV_VERSION "2.11"
 30#define SYNTH_CLEAR 0x18 /* flush synth buffer */
 31#define PROCSPEECH '\r' /* start synth processing speech char */
 32
 33static int synth_probe(struct spk_synth *synth);
 34static void synth_flush(struct spk_synth *synth);
 35
 36static struct var_t vars[] = {
 37	{ CAPS_START, .u.s = {"\x05[f99]" } },
 38	{ CAPS_STOP, .u.s = {"\x05[f80]" } },
 39	{ RATE, .u.n = {"\x05[r%d]", 10, 0, 20, 100, -10, NULL } },
 40	{ PITCH, .u.n = {"\x05[f%d]", 80, 39, 4500, 0, 0, NULL } },
 41	{ VOL, .u.n = {"\x05[g%d]", 21, 0, 40, 0, 0, NULL } },
 42	{ TONE, .u.n = {"\x05[s%d]", 9, 0, 63, 0, 0, 0 } },
 43	{ PUNCT, .u.n = {"\x05[A%c]", 0, 0, 3, 0, 0, "nmsa" } },
 44	{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
 45	V_LAST_VAR
 46};
 47
 48/*
 49 * These attributes will appear in /sys/accessibility/speakup/audptr.
 50 */
 51static struct kobj_attribute caps_start_attribute =
 52	__ATTR(caps_start, USER_RW, spk_var_show, spk_var_store);
 53static struct kobj_attribute caps_stop_attribute =
 54	__ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store);
 55static struct kobj_attribute pitch_attribute =
 56	__ATTR(pitch, USER_RW, spk_var_show, spk_var_store);
 57static struct kobj_attribute punct_attribute =
 58	__ATTR(punct, USER_RW, spk_var_show, spk_var_store);
 59static struct kobj_attribute rate_attribute =
 60	__ATTR(rate, USER_RW, spk_var_show, spk_var_store);
 61static struct kobj_attribute tone_attribute =
 62	__ATTR(tone, USER_RW, spk_var_show, spk_var_store);
 63static struct kobj_attribute vol_attribute =
 64	__ATTR(vol, USER_RW, spk_var_show, spk_var_store);
 65
 66static struct kobj_attribute delay_time_attribute =
 67	__ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store);
 68static struct kobj_attribute direct_attribute =
 69	__ATTR(direct, USER_RW, spk_var_show, spk_var_store);
 70static struct kobj_attribute full_time_attribute =
 71	__ATTR(full_time, ROOT_W, spk_var_show, spk_var_store);
 72static struct kobj_attribute jiffy_delta_attribute =
 73	__ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store);
 74static struct kobj_attribute trigger_time_attribute =
 75	__ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store);
 76
 77/*
 78 * Create a group of attributes so that we can create and destroy them all
 79 * at once.
 80 */
 81static struct attribute *synth_attrs[] = {
 82	&caps_start_attribute.attr,
 83	&caps_stop_attribute.attr,
 84	&pitch_attribute.attr,
 85	&punct_attribute.attr,
 86	&rate_attribute.attr,
 87	&tone_attribute.attr,
 88	&vol_attribute.attr,
 89	&delay_time_attribute.attr,
 90	&direct_attribute.attr,
 91	&full_time_attribute.attr,
 92	&jiffy_delta_attribute.attr,
 93	&trigger_time_attribute.attr,
 94	NULL,	/* need to NULL terminate the list of attributes */
 95};
 96
 97static struct spk_synth synth_audptr = {
 98	.name = "audptr",
 99	.version = DRV_VERSION,
100	.long_name = "Audapter",
101	.init = "\x05[D1]\x05[Ol]",
102	.procspeech = PROCSPEECH,
103	.clear = SYNTH_CLEAR,
104	.delay = 400,
105	.trigger = 50,
106	.jiffies = 30,
107	.full = 18000,
108	.startup = SYNTH_START,
109	.checkval = SYNTH_CHECK,
110	.vars = vars,
111	.probe = synth_probe,
112	.release = spk_serial_release,
113	.synth_immediate = spk_synth_immediate,
114	.catch_up = spk_do_catch_up,
115	.flush = synth_flush,
116	.is_alive = spk_synth_is_alive_restart,
117	.synth_adjust = NULL,
118	.read_buff_add = NULL,
119	.get_index = NULL,
120	.indexing = {
121		.command = NULL,
122		.lowindex = 0,
123		.highindex = 0,
124		.currindex = 0,
125	},
126	.attributes = {
127		.attrs = synth_attrs,
128		.name = "audptr",
129	},
130};
131
132static void synth_flush(struct spk_synth *synth)
133{
134	int timeout = SPK_XMITR_TIMEOUT;
135	while (spk_serial_tx_busy()) {
136		if (!--timeout)
137			break;
138		udelay(1);
139	}
140	outb(SYNTH_CLEAR, speakup_info.port_tts);
141	spk_serial_out(PROCSPEECH);
142}
143
144static void synth_version(struct spk_synth *synth)
145{
146	unsigned char test = 0;
147	char synth_id[40] = "";
148	spk_synth_immediate(synth, "\x05[Q]");
149	synth_id[test] = spk_serial_in();
150	if (synth_id[test] == 'A') {
151		do {
152			/* read version string from synth */
153			synth_id[++test] = spk_serial_in();
154		} while (synth_id[test] != '\n' && test < 32);
155		synth_id[++test] = 0x00;
156	}
157	if (synth_id[0] == 'A')
158		pr_info("%s version: %s", synth->long_name, synth_id);
159}
160
161static int synth_probe(struct spk_synth *synth)
162{
163	int failed = 0;
164
165	failed = serial_synth_probe(synth);
166	if (failed == 0)
167		synth_version(synth);
168	synth->alive = !failed;
169	return 0;
170}
171
172module_param_named(ser, synth_audptr.ser, int, S_IRUGO);
173module_param_named(start, synth_audptr.startup, short, S_IRUGO);
174
175MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
176MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
177
178static int __init audptr_init(void)
179{
180	return synth_add(&synth_audptr);
181}
182
183static void __exit audptr_exit(void)
184{
185	synth_remove(&synth_audptr);
186}
187
188module_init(audptr_init);
189module_exit(audptr_exit);
190MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
191MODULE_AUTHOR("David Borowski");
192MODULE_DESCRIPTION("Speakup support for Audapter synthesizer");
193MODULE_LICENSE("GPL");
194MODULE_VERSION(DRV_VERSION);
195