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/drivers/staging/speakup/speakup_spkout.c

https://bitbucket.org/cyanogenmod/android_kernel_asus_tf300t
C | 165 lines | 120 code | 14 blank | 31 comment | 2 complexity | b0afee090607f5c6e55928b623042762 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
 31#define PROCSPEECH '\r'
 32
 33static void synth_flush(struct spk_synth *synth);
 34
 35static struct var_t vars[] = {
 36	{ CAPS_START, .u.s = {"\x05P+" } },
 37	{ CAPS_STOP, .u.s = {"\x05P-" } },
 38	{ RATE, .u.n = {"\x05R%d", 7, 0, 9, 0, 0, NULL } },
 39	{ PITCH, .u.n = {"\x05P%d", 3, 0, 9, 0, 0, NULL } },
 40	{ VOL, .u.n = {"\x05V%d", 9, 0, 9, 0, 0, NULL } },
 41	{ TONE, .u.n = {"\x05T%c", 8, 0, 25, 65, 0, NULL } },
 42	{ PUNCT, .u.n = {"\x05M%c", 0, 0, 3, 0, 0, "nsma" } },
 43	{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
 44	V_LAST_VAR
 45};
 46
 47/*
 48 * These attributes will appear in /sys/accessibility/speakup/spkout.
 49 */
 50static struct kobj_attribute caps_start_attribute =
 51	__ATTR(caps_start, USER_RW, spk_var_show, spk_var_store);
 52static struct kobj_attribute caps_stop_attribute =
 53	__ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store);
 54static struct kobj_attribute pitch_attribute =
 55	__ATTR(pitch, USER_RW, spk_var_show, spk_var_store);
 56static struct kobj_attribute punct_attribute =
 57	__ATTR(punct, USER_RW, spk_var_show, spk_var_store);
 58static struct kobj_attribute rate_attribute =
 59	__ATTR(rate, USER_RW, spk_var_show, spk_var_store);
 60static struct kobj_attribute tone_attribute =
 61	__ATTR(tone, USER_RW, spk_var_show, spk_var_store);
 62static struct kobj_attribute vol_attribute =
 63	__ATTR(vol, USER_RW, spk_var_show, spk_var_store);
 64
 65static struct kobj_attribute delay_time_attribute =
 66	__ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store);
 67static struct kobj_attribute direct_attribute =
 68	__ATTR(direct, USER_RW, spk_var_show, spk_var_store);
 69static struct kobj_attribute full_time_attribute =
 70	__ATTR(full_time, ROOT_W, spk_var_show, spk_var_store);
 71static struct kobj_attribute jiffy_delta_attribute =
 72	__ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store);
 73static struct kobj_attribute trigger_time_attribute =
 74	__ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store);
 75
 76/*
 77 * Create a group of attributes so that we can create and destroy them all
 78 * at once.
 79 */
 80static struct attribute *synth_attrs[] = {
 81	&caps_start_attribute.attr,
 82	&caps_stop_attribute.attr,
 83	&pitch_attribute.attr,
 84	&punct_attribute.attr,
 85	&rate_attribute.attr,
 86	&tone_attribute.attr,
 87	&vol_attribute.attr,
 88	&delay_time_attribute.attr,
 89	&direct_attribute.attr,
 90	&full_time_attribute.attr,
 91	&jiffy_delta_attribute.attr,
 92	&trigger_time_attribute.attr,
 93	NULL,	/* need to NULL terminate the list of attributes */
 94};
 95
 96static struct spk_synth synth_spkout = {
 97	.name = "spkout",
 98	.version = DRV_VERSION,
 99	.long_name = "Speakout",
100	.init = "\005W1\005I2\005C3",
101	.procspeech = PROCSPEECH,
102	.clear = SYNTH_CLEAR,
103	.delay = 500,
104	.trigger = 50,
105	.jiffies = 50,
106	.full = 40000,
107	.startup = SYNTH_START,
108	.checkval = SYNTH_CHECK,
109	.vars = vars,
110	.probe = serial_synth_probe,
111	.release = spk_serial_release,
112	.synth_immediate = spk_synth_immediate,
113	.catch_up = spk_do_catch_up,
114	.flush = synth_flush,
115	.is_alive = spk_synth_is_alive_restart,
116	.synth_adjust = NULL,
117	.read_buff_add = NULL,
118	.get_index = spk_serial_in_nowait,
119	.indexing = {
120		.command = "\x05[%c",
121		.lowindex = 1,
122		.highindex = 5,
123		.currindex = 1,
124	},
125	.attributes = {
126		.attrs = synth_attrs,
127		.name = "spkout",
128	},
129};
130
131static void synth_flush(struct spk_synth *synth)
132{
133	int timeout = SPK_XMITR_TIMEOUT;
134	while (spk_serial_tx_busy()) {
135		if (!--timeout)
136			break;
137		udelay(1);
138	}
139	outb(SYNTH_CLEAR, speakup_info.port_tts);
140}
141
142module_param_named(ser, synth_spkout.ser, int, S_IRUGO);
143module_param_named(start, synth_spkout.startup, short, S_IRUGO);
144
145MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
146MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
147
148static int __init spkout_init(void)
149{
150	return synth_add(&synth_spkout);
151}
152
153static void __exit spkout_exit(void)
154{
155	synth_remove(&synth_spkout);
156}
157
158module_init(spkout_init);
159module_exit(spkout_exit);
160MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
161MODULE_AUTHOR("David Borowski");
162MODULE_DESCRIPTION("Speakup support for Speak Out synthesizers");
163MODULE_LICENSE("GPL");
164MODULE_VERSION(DRV_VERSION);
165