static ssize_t softsynth_read(struct file *fp, char __user *buf, size_t count,
loff_t *pos)
{
int chars_sent = 0;
char __user *cp;
char *init;
char ch;
int empty;
unsigned long flags;
DEFINE_WAIT(wait);
spin_lock_irqsave(&speakup_info.spinlock, flags);
while (1) {
prepare_to_wait(&speakup_event, &wait, TASK_INTERRUPTIBLE);
if (!synth_buffer_empty() || speakup_info.flushing)
break;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (fp->f_flags & O_NONBLOCK) {
finish_wait(&speakup_event, &wait);
return -EAGAIN;
}
if (signal_pending(current)) {
finish_wait(&speakup_event, &wait);
return -ERESTARTSYS;
}
schedule();
spin_lock_irqsave(&speakup_info.spinlock, flags);
}
finish_wait(&speakup_event, &wait);
cp = buf;
init = get_initstring();
while (chars_sent < count) {
if (speakup_info.flushing) {
speakup_info.flushing = 0;
ch = '\x18';
} else if (synth_buffer_empty()) {
break;
} else if (init[init_pos]) {
ch = init[init_pos++];
} else {
ch = synth_buffer_getc();
}
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (copy_to_user(cp, &ch, 1))
return -EFAULT;
spin_lock_irqsave(&speakup_info.spinlock, flags);
chars_sent++;
cp++;
}
*pos += chars_sent;
empty = synth_buffer_empty();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (empty) {
speakup_start_ttys();
*pos = 0;
}
return chars_sent;
}
static void do_catch_up(struct spk_synth *synth)
{
u_char ch;
unsigned long flags;
unsigned long jiff_max;
struct var_t *jiffy_delta;
struct var_t *delay_time;
int jiffy_delta_val;
int delay_time_val;
jiffy_delta = get_var(JIFFY);
delay_time = get_var(DELAY);
spk_lock(flags);
jiffy_delta_val = jiffy_delta->u.n.value;
spk_unlock(flags);
jiff_max = jiffies + jiffy_delta_val;
while (!kthread_should_stop()) {
spk_lock(flags);
if (speakup_info.flushing) {
speakup_info.flushing = 0;
spk_unlock(flags);
synth->flush(synth);
continue;
}
if (synth_buffer_empty()) {
spk_unlock(flags);
break;
}
set_current_state(TASK_INTERRUPTIBLE);
delay_time_val = delay_time->u.n.value;
spk_unlock(flags);
if (synth_full()) {
schedule_timeout(msecs_to_jiffies(delay_time_val));
continue;
}
set_current_state(TASK_RUNNING);
spk_lock(flags);
ch = synth_buffer_getc();
spk_unlock(flags);
if (ch == '\n')
ch = PROCSPEECH;
spk_out(ch);
if ((jiffies >= jiff_max) && (ch == SPACE)) {
spk_out(PROCSPEECH);
spk_lock(flags);
delay_time_val = delay_time->u.n.value;
jiffy_delta_val = jiffy_delta->u.n.value;
spk_unlock(flags);
schedule_timeout(msecs_to_jiffies(delay_time_val));
jiff_max = jiffies + jiffy_delta_val;
}
}
spk_out(PROCSPEECH);
}
static unsigned int softsynth_poll(struct file *fp,
struct poll_table_struct *wait)
{
unsigned long flags;
int ret = 0;
poll_wait(fp, &speakup_event, wait);
spk_lock(flags);
if (!synth_buffer_empty() || speakup_info.flushing)
ret = POLLIN | POLLRDNORM;
spk_unlock(flags);
return ret;
}
int speakup_thread(void *data)
{
unsigned long flags;
int should_break;
struct bleep our_sound;
our_sound.active = 0;
our_sound.freq = 0;
our_sound.jiffies = 0;
mutex_lock(&spk_mutex);
while (1) {
DEFINE_WAIT(wait);
while (1) {
spin_lock_irqsave(&speakup_info.spinlock, flags);
our_sound = spk_unprocessed_sound;
spk_unprocessed_sound.active = 0;
prepare_to_wait(&speakup_event, &wait,
TASK_INTERRUPTIBLE);
should_break = kthread_should_stop() ||
our_sound.active ||
(synth && synth->catch_up && synth->alive &&
(speakup_info.flushing ||
!synth_buffer_empty()));
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (should_break)
break;
mutex_unlock(&spk_mutex);
schedule();
mutex_lock(&spk_mutex);
}
finish_wait(&speakup_event, &wait);
if (kthread_should_stop())
break;
if (our_sound.active)
kd_mksound(our_sound.freq, our_sound.jiffies);
if (synth && synth->catch_up && synth->alive) {
/* It is up to the callee to take the lock, so that it
* can sleep whenever it likes */
synth->catch_up(synth);
}
speakup_start_ttys();
}
mutex_unlock(&spk_mutex);
return 0;
}
static void do_catch_up(struct spk_synth *synth)
{
u_char ch;
unsigned long flags;
unsigned long jiff_max;
int timeout;
int delay_time_val;
int jiffy_delta_val;
int full_time_val;
struct var_t *delay_time;
struct var_t *full_time;
struct var_t *jiffy_delta;
jiffy_delta = spk_get_var(JIFFY);
delay_time = spk_get_var(DELAY);
full_time = spk_get_var(FULL);
spin_lock_irqsave(&speakup_info.spinlock, flags);
jiffy_delta_val = jiffy_delta->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
jiff_max = jiffies + jiffy_delta_val;
while (!kthread_should_stop()) {
spin_lock_irqsave(&speakup_info.spinlock, flags);
if (speakup_info.flushing) {
speakup_info.flushing = 0;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
synth->flush(synth);
continue;
}
if (synth_buffer_empty()) {
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
break;
}
set_current_state(TASK_INTERRUPTIBLE);
full_time_val = full_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (synth_full()) {
schedule_timeout(msecs_to_jiffies(full_time_val));
continue;
}
set_current_state(TASK_RUNNING);
timeout = SPK_XMITR_TIMEOUT;
while (synth_writable()) {
if (!--timeout)
break;
udelay(1);
}
spin_lock_irqsave(&speakup_info.spinlock, flags);
ch = synth_buffer_getc();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = PROCSPEECH;
outb_p(ch, speakup_info.port_tts);
if (time_after_eq(jiffies, jiff_max) && ch == SPACE) {
timeout = SPK_XMITR_TIMEOUT;
while (synth_writable()) {
if (!--timeout)
break;
udelay(1);
}
outb_p(PROCSPEECH, speakup_info.port_tts);
spin_lock_irqsave(&speakup_info.spinlock, flags);
jiffy_delta_val = jiffy_delta->u.n.value;
delay_time_val = delay_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
schedule_timeout(msecs_to_jiffies(delay_time_val));
jiff_max = jiffies+jiffy_delta_val;
}
}
timeout = SPK_XMITR_TIMEOUT;
while (synth_writable()) {
if (!--timeout)
break;
udelay(1);
}
outb_p(PROCSPEECH, speakup_info.port_tts);
}
static void do_catch_up(struct spk_synth *synth)
{
u_char ch;
static u_char last;
unsigned long flags;
unsigned long jiff_max;
struct var_t *jiffy_delta;
struct var_t *delay_time;
int jiffy_delta_val;
int delay_time_val;
jiffy_delta = spk_get_var(JIFFY);
delay_time = spk_get_var(DELAY);
spin_lock_irqsave(&speakup_info.spinlock, flags);
jiffy_delta_val = jiffy_delta->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
jiff_max = jiffies + jiffy_delta_val;
while (!kthread_should_stop()) {
spin_lock_irqsave(&speakup_info.spinlock, flags);
if (speakup_info.flushing) {
speakup_info.flushing = 0;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
synth->flush(synth);
continue;
}
if (synth_buffer_empty()) {
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
break;
}
ch = synth_buffer_peek();
set_current_state(TASK_INTERRUPTIBLE);
delay_time_val = delay_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = 0x0D;
if (dt_sendchar(ch)) {
schedule_timeout(msecs_to_jiffies(delay_time_val));
continue;
}
set_current_state(TASK_RUNNING);
spin_lock_irqsave(&speakup_info.spinlock, flags);
synth_buffer_getc();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '[')
in_escape = 1;
else if (ch == ']')
in_escape = 0;
else if (ch <= SPACE) {
if (!in_escape && strchr(",.!?;:", last))
dt_sendchar(PROCSPEECH);
if (jiffies >= jiff_max) {
if (!in_escape)
dt_sendchar(PROCSPEECH);
spin_lock_irqsave(&speakup_info.spinlock, flags);
jiffy_delta_val = jiffy_delta->u.n.value;
delay_time_val = delay_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
schedule_timeout(msecs_to_jiffies
(delay_time_val));
jiff_max = jiffies + jiffy_delta_val;
}
}
last = ch;
ch = 0;
}
if (!in_escape)
dt_sendchar(PROCSPEECH);
}
static void do_catch_up(struct spk_synth *synth)
{
int synth_full_val = 0;
static u_char ch;
static u_char last = '\0';
unsigned long flags;
unsigned long jiff_max;
unsigned long timeout = msecs_to_jiffies(4000);
DEFINE_WAIT(wait);
struct var_t *jiffy_delta;
struct var_t *delay_time;
int jiffy_delta_val;
int delay_time_val;
jiffy_delta = spk_get_var(JIFFY);
delay_time = spk_get_var(DELAY);
spin_lock_irqsave(&speakup_info.spinlock, flags);
jiffy_delta_val = jiffy_delta->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
jiff_max = jiffies + jiffy_delta_val;
while (!kthread_should_stop()) {
/* if no ctl-a in 4, send data anyway */
spin_lock_irqsave(&flush_lock, flags);
while (is_flushing && timeout) {
prepare_to_wait(&flush, &wait, TASK_INTERRUPTIBLE);
spin_unlock_irqrestore(&flush_lock, flags);
timeout = schedule_timeout(timeout);
spin_lock_irqsave(&flush_lock, flags);
}
finish_wait(&flush, &wait);
is_flushing = 0;
spin_unlock_irqrestore(&flush_lock, flags);
spin_lock_irqsave(&speakup_info.spinlock, flags);
if (speakup_info.flushing) {
speakup_info.flushing = 0;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
synth->flush(synth);
continue;
}
if (synth_buffer_empty()) {
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
break;
}
ch = synth_buffer_peek();
set_current_state(TASK_INTERRUPTIBLE);
delay_time_val = delay_time->u.n.value;
synth_full_val = synth_full();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = 0x0D;
if (synth_full_val || !spk_serial_out(ch)) {
schedule_timeout(msecs_to_jiffies(delay_time_val));
continue;
}
set_current_state(TASK_RUNNING);
spin_lock_irqsave(&speakup_info.spinlock, flags);
synth_buffer_getc();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '[')
in_escape = 1;
else if (ch == ']')
in_escape = 0;
else if (ch <= SPACE) {
if (!in_escape && strchr(",.!?;:", last))
spk_serial_out(PROCSPEECH);
if (jiffies >= jiff_max) {
if (!in_escape)
spk_serial_out(PROCSPEECH);
spin_lock_irqsave(&speakup_info.spinlock,
flags);
jiffy_delta_val = jiffy_delta->u.n.value;
delay_time_val = delay_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock,
flags);
schedule_timeout(msecs_to_jiffies
(delay_time_val));
jiff_max = jiffies + jiffy_delta_val;
}
}
last = ch;
}
if (!in_escape)
spk_serial_out(PROCSPEECH);
}
static void do_catch_up(struct spk_synth *synth)
{
u_char ch;
unsigned long flags;
unsigned long jiff_max;
struct var_t *jiffy_delta;
struct var_t *delay_time;
struct var_t *full_time;
int full_time_val = 0;
int delay_time_val = 0;
int jiffy_delta_val = 0;
jiffy_delta = get_var(JIFFY);
delay_time = get_var(DELAY);
full_time = get_var(FULL);
spk_lock(flags);
jiffy_delta_val = jiffy_delta->u.n.value;
spk_unlock(flags);
jiff_max = jiffies + jiffy_delta_val;
while (!kthread_should_stop()) {
spk_lock(flags);
jiffy_delta_val = jiffy_delta->u.n.value;
full_time_val = full_time->u.n.value;
delay_time_val = delay_time->u.n.value;
if (speakup_info.flushing) {
speakup_info.flushing = 0;
spk_unlock(flags);
synth->flush(synth);
continue;
}
if (synth_buffer_empty()) {
spk_unlock(flags);
break;
}
ch = synth_buffer_peek();
set_current_state(TASK_INTERRUPTIBLE);
full_time_val = full_time->u.n.value;
spk_unlock(flags);
if (!spk_serial_out(ch)) {
outb(UART_MCR_DTR, speakup_info.port_tts + UART_MCR);
outb(UART_MCR_DTR | UART_MCR_RTS,
speakup_info.port_tts + UART_MCR);
schedule_timeout(msecs_to_jiffies(full_time_val));
continue;
}
if ((jiffies >= jiff_max) && (ch == SPACE)) {
spk_lock(flags);
jiffy_delta_val = jiffy_delta->u.n.value;
full_time_val = full_time->u.n.value;
delay_time_val = delay_time->u.n.value;
spk_unlock(flags);
if (spk_serial_out(synth->procspeech))
schedule_timeout(msecs_to_jiffies
(delay_time_val));
else
schedule_timeout(msecs_to_jiffies
(full_time_val));
jiff_max = jiffies + jiffy_delta_val;
}
set_current_state(TASK_RUNNING);
spk_lock(flags);
synth_buffer_getc();
spk_unlock(flags);
}
spk_serial_out(PROCSPEECH);
}
/* Main loop of the progression thread: keep eating from the buffer
* and push to the serial port, waiting as needed
*
* For devices that have a "full" notification mechanism, the driver can
* adapt the loop the way they prefer.
*/
void spk_do_catch_up(struct spk_synth *synth)
{
u_char ch;
unsigned long flags;
unsigned long jiff_max;
struct var_t *delay_time;
struct var_t *full_time;
struct var_t *jiffy_delta;
int jiffy_delta_val;
int delay_time_val;
int full_time_val;
jiffy_delta = spk_get_var(JIFFY);
full_time = spk_get_var(FULL);
delay_time = spk_get_var(DELAY);
spin_lock_irqsave(&speakup_info.spinlock, flags);
jiffy_delta_val = jiffy_delta->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
jiff_max = jiffies + jiffy_delta_val;
while (!kthread_should_stop()) {
spin_lock_irqsave(&speakup_info.spinlock, flags);
if (speakup_info.flushing) {
speakup_info.flushing = 0;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
synth->flush(synth);
continue;
}
if (synth_buffer_empty()) {
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
break;
}
ch = synth_buffer_peek();
set_current_state(TASK_INTERRUPTIBLE);
full_time_val = full_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = synth->procspeech;
if (!spk_serial_out(ch)) {
schedule_timeout(msecs_to_jiffies(full_time_val));
continue;
}
if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) {
spin_lock_irqsave(&speakup_info.spinlock, flags);
jiffy_delta_val = jiffy_delta->u.n.value;
delay_time_val = delay_time->u.n.value;
full_time_val = full_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (spk_serial_out(synth->procspeech))
schedule_timeout(
msecs_to_jiffies(delay_time_val));
else
schedule_timeout(
msecs_to_jiffies(full_time_val));
jiff_max = jiffies + jiffy_delta_val;
}
set_current_state(TASK_RUNNING);
spin_lock_irqsave(&speakup_info.spinlock, flags);
synth_buffer_getc();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
spk_serial_out(synth->procspeech);
}
static void do_catch_up(struct spk_synth *synth)
{
u_char ch;
int timeout;
unsigned long flags;
unsigned long jiff_max;
struct var_t *jiffy_delta;
struct var_t *delay_time;
struct var_t *full_time;
int delay_time_val;
int full_time_val;
int jiffy_delta_val;
jiffy_delta = get_var(JIFFY);
delay_time = get_var(DELAY);
full_time = get_var(FULL);
spk_lock(flags);
jiffy_delta_val = jiffy_delta->u.n.value;
spk_unlock(flags);
jiff_max = jiffies + jiffy_delta_val;
while (!kthread_should_stop()) {
spk_lock(flags);
if (speakup_info.flushing) {
speakup_info.flushing = 0;
spk_unlock(flags);
synth->flush(synth);
continue;
}
if (synth_buffer_empty()) {
spk_unlock(flags);
break;
}
set_current_state(TASK_INTERRUPTIBLE);
full_time_val = full_time->u.n.value;
spk_unlock(flags);
if (synth_full()) {
schedule_timeout(msecs_to_jiffies(full_time_val));
continue;
}
set_current_state(TASK_RUNNING);
timeout = 1000;
while (synth_writable())
if (--timeout <= 0)
break;
if (timeout <= 0) {
oops();
break;
}
spk_lock(flags);
ch = synth_buffer_getc();
spk_unlock(flags);
if (ch == '\n')
ch = PROCSPEECH;
outb_p(ch, synth_port);
SWAIT;
if ((jiffies >= jiff_max) && (ch == SPACE)) {
timeout = 1000;
while (synth_writable())
if (--timeout <= 0)
break;
if (timeout <= 0) {
oops();
break;
}
outb_p(PROCSPEECH, synth_port);
spk_lock(flags);
jiffy_delta_val = jiffy_delta->u.n.value;
delay_time_val = delay_time->u.n.value;
spk_unlock(flags);
schedule_timeout(msecs_to_jiffies(delay_time_val));
jiff_max = jiffies+jiffy_delta_val;
}
}
timeout = 1000;
while (synth_writable())
if (--timeout <= 0)
break;
if (timeout <= 0)
oops();
else
outb_p(PROCSPEECH, synth_port);
}
