Commit 1e441594 authored by Okash Khawaja's avatar Okash Khawaja Committed by Greg Kroah-Hartman

staging: speakup: add spk_io_ops struct to spk_synth

This patch adds spk_io_ops struct which contain those methods whose job is to
communicate with synth device. Currently, all comms with external synth
device use raw serial i/o. The idea is to group all methods which do the
actual communication with external device into this new struct. Then migrating
a serial-based synth over to an alternative to raw serial i/o will mean
swapping serial spk_io_ops instance with the io_ops instance of the new
method, making the migration simpler.

At the moment, this struct only contains one method, synth_out but more will
be added in future when migrating synths which require input functionality.
Also at the moment, synth_out method has one implementation which uses
serial i/o. Plan is to add an alternative.
Signed-off-by: default avatarOkash Khawaja <okash.khawaja@gmail.com>
Reviewed-by: default avatarSamuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9176d156
......@@ -24,6 +24,12 @@ static const struct old_serial_port rs_table[] = {
static const struct old_serial_port *serstate;
static int timeouts;
static int spk_serial_out(struct spk_synth *in_synth, const char ch);
struct spk_io_ops spk_serial_io_ops = {
.synth_out = spk_serial_out,
};
EXPORT_SYMBOL_GPL(spk_serial_io_ops);
const struct old_serial_port *spk_serial_init(int index)
{
int baud = 9600, quot = 0;
......@@ -214,7 +220,6 @@ int spk_serial_out(struct spk_synth *in_synth, const char ch)
}
return 0;
}
EXPORT_SYMBOL_GPL(spk_serial_out);
void spk_serial_release(void)
{
......
......@@ -113,6 +113,7 @@ static struct spk_synth synth_acntpc = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = synth_probe,
.release = accent_release,
.synth_immediate = synth_immediate,
......
......@@ -99,6 +99,7 @@ static struct spk_synth synth_acntsa = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......
......@@ -108,6 +108,7 @@ static struct spk_synth synth_apollo = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = spk_serial_synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......@@ -169,7 +170,7 @@ static void do_catch_up(struct spk_synth *synth)
set_current_state(TASK_INTERRUPTIBLE);
full_time_val = full_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (!spk_serial_out(synth, ch)) {
if (!synth->io_ops->synth_out(synth, ch)) {
outb(UART_MCR_DTR, speakup_info.port_tts + UART_MCR);
outb(UART_MCR_DTR | UART_MCR_RTS,
speakup_info.port_tts + UART_MCR);
......@@ -182,7 +183,7 @@ static void do_catch_up(struct spk_synth *synth)
full_time_val = full_time->u.n.value;
delay_time_val = delay_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (spk_serial_out(synth, synth->procspeech))
if (synth->io_ops->synth_out(synth, synth->procspeech))
schedule_timeout(msecs_to_jiffies
(delay_time_val));
else
......@@ -195,7 +196,7 @@ static void do_catch_up(struct spk_synth *synth)
synth_buffer_getc();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
spk_serial_out(synth, PROCSPEECH);
synth->io_ops->synth_out(synth, PROCSPEECH);
}
module_param_named(ser, synth_apollo.ser, int, 0444);
......
......@@ -104,6 +104,7 @@ static struct spk_synth synth_audptr = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......@@ -135,7 +136,7 @@ static void synth_flush(struct spk_synth *synth)
udelay(1);
}
outb(SYNTH_CLEAR, speakup_info.port_tts);
spk_serial_out(synth, PROCSPEECH);
synth->io_ops->synth_out(synth, PROCSPEECH);
}
static void synth_version(struct spk_synth *synth)
......
......@@ -96,6 +96,7 @@ static struct spk_synth synth_bns = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = spk_serial_synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......
......@@ -127,6 +127,7 @@ static struct spk_synth synth_decext = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = spk_serial_synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......@@ -186,7 +187,7 @@ static void do_catch_up(struct spk_synth *synth)
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = 0x0D;
if (synth_full() || !spk_serial_out(synth, ch)) {
if (synth_full() || !synth->io_ops->synth_out(synth, ch)) {
schedule_timeout(msecs_to_jiffies(delay_time_val));
continue;
}
......@@ -200,10 +201,10 @@ static void do_catch_up(struct spk_synth *synth)
in_escape = 0;
else if (ch <= SPACE) {
if (!in_escape && strchr(",.!?;:", last))
spk_serial_out(synth, PROCSPEECH);
synth->io_ops->synth_out(synth, PROCSPEECH);
if (time_after_eq(jiffies, jiff_max)) {
if (!in_escape)
spk_serial_out(synth, PROCSPEECH);
synth->io_ops->synth_out(synth, PROCSPEECH);
spin_lock_irqsave(&speakup_info.spinlock,
flags);
jiffy_delta_val = jiffy_delta->u.n.value;
......@@ -218,7 +219,7 @@ static void do_catch_up(struct spk_synth *synth)
last = ch;
}
if (!in_escape)
spk_serial_out(synth, PROCSPEECH);
synth->io_ops->synth_out(synth, PROCSPEECH);
}
static void synth_flush(struct spk_synth *synth)
......
......@@ -218,6 +218,7 @@ static struct spk_synth synth_dec_pc = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = synth_probe,
.release = dtpc_release,
.synth_immediate = synth_immediate,
......
......@@ -130,6 +130,7 @@ static struct spk_synth synth_dectlk = {
.vars = vars,
.default_pitch = ap_defaults,
.default_vol = g5_defaults,
.io_ops = &spk_serial_io_ops,
.probe = spk_serial_synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......@@ -251,7 +252,7 @@ static void do_catch_up(struct spk_synth *synth)
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = 0x0D;
if (synth_full_val || !spk_serial_out(synth, ch)) {
if (synth_full_val || !synth->io_ops->synth_out(synth, ch)) {
schedule_timeout(msecs_to_jiffies(delay_time_val));
continue;
}
......@@ -265,10 +266,10 @@ static void do_catch_up(struct spk_synth *synth)
in_escape = 0;
else if (ch <= SPACE) {
if (!in_escape && strchr(",.!?;:", last))
spk_serial_out(synth, PROCSPEECH);
synth->io_ops->synth_out(synth, PROCSPEECH);
if (time_after_eq(jiffies, jiff_max)) {
if (!in_escape)
spk_serial_out(synth, PROCSPEECH);
synth->io_ops->synth_out(synth, PROCSPEECH);
spin_lock_irqsave(&speakup_info.spinlock,
flags);
jiffy_delta_val = jiffy_delta->u.n.value;
......@@ -283,17 +284,17 @@ static void do_catch_up(struct spk_synth *synth)
last = ch;
}
if (!in_escape)
spk_serial_out(synth, PROCSPEECH);
synth->io_ops->synth_out(synth, PROCSPEECH);
}
static void synth_flush(struct spk_synth *synth)
{
if (in_escape)
/* if in command output ']' so we don't get an error */
spk_serial_out(synth, ']');
synth->io_ops->synth_out(synth, ']');
in_escape = 0;
is_flushing = 1;
spk_serial_out(synth, SYNTH_CLEAR);
synth->io_ops->synth_out(synth, SYNTH_CLEAR);
}
module_param_named(ser, synth_dectlk.ser, int, 0444);
......
......@@ -128,6 +128,7 @@ static struct spk_synth synth_dtlk = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = synth_probe,
.release = dtlk_release,
.synth_immediate = synth_immediate,
......
......@@ -98,6 +98,7 @@ static struct spk_synth synth_dummy = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = spk_serial_synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......
......@@ -105,6 +105,7 @@ static struct spk_synth synth_keypc = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = synth_probe,
.release = keynote_release,
.synth_immediate = synth_immediate,
......
......@@ -111,6 +111,7 @@ static struct spk_synth synth_ltlk = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......
......@@ -131,6 +131,7 @@ static struct spk_synth synth_soft = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = NULL,
.probe = softsynth_probe,
.release = softsynth_release,
.synth_immediate = NULL,
......
......@@ -102,6 +102,7 @@ static struct spk_synth synth_spkout = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = spk_serial_synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......
......@@ -95,6 +95,7 @@ static struct spk_synth synth_txprt = {
.startup = SYNTH_START,
.checkval = SYNTH_CHECK,
.vars = vars,
.io_ops = &spk_serial_io_ops,
.probe = spk_serial_synth_probe,
.release = spk_serial_release,
.synth_immediate = spk_synth_immediate,
......
......@@ -45,7 +45,6 @@ void spk_stop_serial_interrupt(void);
int spk_wait_for_xmitr(struct spk_synth *in_synth);
unsigned char spk_serial_in(void);
unsigned char spk_serial_in_nowait(void);
int spk_serial_out(struct spk_synth *in_synth, const char ch);
void spk_serial_release(void);
void synth_buffer_skip_nonlatin1(void);
......@@ -79,4 +78,6 @@ extern struct speakup_info_t speakup_info;
extern struct var_t synth_time_vars[];
extern struct spk_io_ops spk_serial_io_ops;
#endif
......@@ -146,6 +146,12 @@ struct synth_indexing {
unsigned char currindex;
};
struct spk_synth;
struct spk_io_ops {
int (*synth_out)(struct spk_synth *synth, const char ch);
};
struct spk_synth {
const char *name;
const char *version;
......@@ -164,6 +170,7 @@ struct spk_synth {
struct var_t *vars;
int *default_pitch;
int *default_vol;
struct spk_io_ops *io_ops;
int (*probe)(struct spk_synth *synth);
void (*release)(void);
const char *(*synth_immediate)(struct spk_synth *synth,
......
......@@ -120,7 +120,7 @@ void spk_do_catch_up(struct spk_synth *synth)
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = synth->procspeech;
if (!spk_serial_out(synth, ch)) {
if (!synth->io_ops->synth_out(synth, ch)) {
schedule_timeout(msecs_to_jiffies(full_time_val));
continue;
}
......@@ -130,7 +130,7 @@ void spk_do_catch_up(struct spk_synth *synth)
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, synth->procspeech))
if (synth->io_ops->synth_out(synth, synth->procspeech))
schedule_timeout(
msecs_to_jiffies(delay_time_val));
else
......@@ -143,7 +143,7 @@ void spk_do_catch_up(struct spk_synth *synth)
synth_buffer_getc();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
spk_serial_out(synth, synth->procspeech);
synth->io_ops->synth_out(synth, synth->procspeech);
}
EXPORT_SYMBOL_GPL(spk_do_catch_up);
......@@ -166,7 +166,7 @@ EXPORT_SYMBOL_GPL(spk_synth_immediate);
void spk_synth_flush(struct spk_synth *synth)
{
spk_serial_out(synth, synth->clear);
synth->io_ops->synth_out(synth, synth->clear);
}
EXPORT_SYMBOL_GPL(spk_synth_flush);
......
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