2010-10-07 20:20:02 +02:00
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/*
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* originally written by: Kirk Reiser <kirk@braille.uwo.ca>
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* this version considerably modified by David Borowski, david575@rogers.com
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*
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* Copyright (C) 1998-99 Kirk Reiser.
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* Copyright (C) 2003 David Borowski.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* this code is specificly written as a driver for the speakup screenreview
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* package and is not a general device driver.
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*/
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#include <linux/jiffies.h>
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#include <linux/sched.h>
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#include <linux/timer.h>
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#include <linux/kthread.h>
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#include "spk_priv.h"
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#include "serialio.h"
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#include "speakup.h"
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#define DRV_VERSION "2.21"
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#define SYNTH_CLEAR 0x18
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#define PROCSPEECH '\r'
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static void do_catch_up(struct spk_synth *synth);
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static struct var_t vars[] = {
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2010-10-15 02:23:48 +02:00
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{ CAPS_START, .u.s = {"cap, " } },
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{ CAPS_STOP, .u.s = {"" } },
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{ RATE, .u.n = {"@W%d", 6, 1, 9, 0, 0, NULL } },
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{ PITCH, .u.n = {"@F%x", 10, 0, 15, 0, 0, NULL } },
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{ VOL, .u.n = {"@A%x", 10, 0, 15, 0, 0, NULL } },
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{ VOICE, .u.n = {"@V%d", 1, 1, 6, 0, 0, NULL } },
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{ LANG, .u.n = {"@=%d,", 1, 1, 4, 0, 0, NULL } },
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{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
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2010-10-07 20:20:02 +02:00
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V_LAST_VAR
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};
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/*
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* These attributes will appear in /sys/accessibility/speakup/apollo.
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*/
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static struct kobj_attribute caps_start_attribute =
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__ATTR(caps_start, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute caps_stop_attribute =
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__ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute lang_attribute =
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__ATTR(lang, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute pitch_attribute =
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__ATTR(pitch, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute rate_attribute =
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__ATTR(rate, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute voice_attribute =
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__ATTR(voice, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute vol_attribute =
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__ATTR(vol, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute delay_time_attribute =
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__ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store);
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static struct kobj_attribute direct_attribute =
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__ATTR(direct, USER_RW, spk_var_show, spk_var_store);
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static struct kobj_attribute full_time_attribute =
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__ATTR(full_time, ROOT_W, spk_var_show, spk_var_store);
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static struct kobj_attribute jiffy_delta_attribute =
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__ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store);
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static struct kobj_attribute trigger_time_attribute =
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__ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store);
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/*
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* Create a group of attributes so that we can create and destroy them all
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* at once.
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*/
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static struct attribute *synth_attrs[] = {
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&caps_start_attribute.attr,
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&caps_stop_attribute.attr,
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&lang_attribute.attr,
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&pitch_attribute.attr,
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&rate_attribute.attr,
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&voice_attribute.attr,
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&vol_attribute.attr,
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&delay_time_attribute.attr,
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&direct_attribute.attr,
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&full_time_attribute.attr,
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&jiffy_delta_attribute.attr,
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&trigger_time_attribute.attr,
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NULL, /* need to NULL terminate the list of attributes */
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};
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static struct spk_synth synth_apollo = {
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.name = "apollo",
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.version = DRV_VERSION,
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.long_name = "Apollo",
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.init = "@R3@D0@K1\r",
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.procspeech = PROCSPEECH,
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.clear = SYNTH_CLEAR,
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.delay = 500,
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.trigger = 50,
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.jiffies = 50,
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.full = 40000,
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.startup = SYNTH_START,
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.checkval = SYNTH_CHECK,
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.vars = vars,
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.probe = serial_synth_probe,
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.release = spk_serial_release,
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.synth_immediate = spk_synth_immediate,
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.catch_up = do_catch_up,
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.flush = spk_synth_flush,
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.is_alive = spk_synth_is_alive_restart,
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.synth_adjust = NULL,
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.read_buff_add = NULL,
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.get_index = NULL,
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.indexing = {
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.command = NULL,
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.lowindex = 0,
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.highindex = 0,
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.currindex = 0,
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},
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.attributes = {
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.attrs = synth_attrs,
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.name = "apollo",
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},
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};
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static void do_catch_up(struct spk_synth *synth)
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{
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u_char ch;
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unsigned long flags;
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unsigned long jiff_max;
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struct var_t *jiffy_delta;
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struct var_t *delay_time;
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struct var_t *full_time;
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int full_time_val = 0;
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int delay_time_val = 0;
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int jiffy_delta_val = 0;
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jiffy_delta = get_var(JIFFY);
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delay_time = get_var(DELAY);
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full_time = get_var(FULL);
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spk_lock(flags);
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jiffy_delta_val = jiffy_delta->u.n.value;
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spk_unlock(flags);
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jiff_max = jiffies + jiffy_delta_val;
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while (!kthread_should_stop()) {
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spk_lock(flags);
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jiffy_delta_val = jiffy_delta->u.n.value;
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full_time_val = full_time->u.n.value;
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delay_time_val = delay_time->u.n.value;
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if (speakup_info.flushing) {
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speakup_info.flushing = 0;
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spk_unlock(flags);
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synth->flush(synth);
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continue;
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}
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if (synth_buffer_empty()) {
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spk_unlock(flags);
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break;
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}
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ch = synth_buffer_peek();
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set_current_state(TASK_INTERRUPTIBLE);
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full_time_val = full_time->u.n.value;
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spk_unlock(flags);
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if (!spk_serial_out(ch)) {
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outb(UART_MCR_DTR, speakup_info.port_tts + UART_MCR);
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outb(UART_MCR_DTR | UART_MCR_RTS,
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speakup_info.port_tts + UART_MCR);
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schedule_timeout(msecs_to_jiffies(full_time_val));
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continue;
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}
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if ((jiffies >= jiff_max) && (ch == SPACE)) {
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spk_lock(flags);
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jiffy_delta_val = jiffy_delta->u.n.value;
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full_time_val = full_time->u.n.value;
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delay_time_val = delay_time->u.n.value;
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spk_unlock(flags);
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if (spk_serial_out(synth->procspeech))
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2010-10-15 02:23:48 +02:00
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schedule_timeout(msecs_to_jiffies
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(delay_time_val));
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2010-10-07 20:20:02 +02:00
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else
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2010-10-15 02:23:48 +02:00
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schedule_timeout(msecs_to_jiffies
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(full_time_val));
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2010-10-07 20:20:02 +02:00
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jiff_max = jiffies + jiffy_delta_val;
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}
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set_current_state(TASK_RUNNING);
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spk_lock(flags);
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synth_buffer_getc();
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spk_unlock(flags);
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}
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spk_serial_out(PROCSPEECH);
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}
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module_param_named(ser, synth_apollo.ser, int, S_IRUGO);
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module_param_named(start, synth_apollo.startup, short, S_IRUGO);
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MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
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MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
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static int __init apollo_init(void)
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{
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return synth_add(&synth_apollo);
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}
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static void __exit apollo_exit(void)
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{
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synth_remove(&synth_apollo);
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}
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module_init(apollo_init);
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module_exit(apollo_exit);
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MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
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MODULE_AUTHOR("David Borowski");
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MODULE_DESCRIPTION("Speakup support for Apollo II synthesizer");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_VERSION);
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