419 lines
12 KiB
C
419 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* originally written by: Kirk Reiser <kirk@braille.uwo.ca>
|
|
* this version considerably modified by David Borowski, david575@rogers.com
|
|
*
|
|
* Copyright (C) 1998-99 Kirk Reiser.
|
|
* Copyright (C) 2003 David Borowski.
|
|
*
|
|
* specifically written as a driver for the speakup screenreview
|
|
* package it's not a general device driver.
|
|
* This driver is for the RC Systems DoubleTalk PC internal synthesizer.
|
|
*/
|
|
#include <linux/jiffies.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/kthread.h>
|
|
|
|
#include "spk_priv.h"
|
|
#include "serialio.h"
|
|
#include "speakup_dtlk.h" /* local header file for DoubleTalk values */
|
|
#include "speakup.h"
|
|
|
|
#define DRV_VERSION "2.10"
|
|
#define PROCSPEECH 0x00
|
|
|
|
static int synth_probe(struct spk_synth *synth);
|
|
static void dtlk_release(struct spk_synth *synth);
|
|
static const char *synth_immediate(struct spk_synth *synth, const char *buf);
|
|
static void do_catch_up(struct spk_synth *synth);
|
|
static void synth_flush(struct spk_synth *synth);
|
|
|
|
static int synth_lpc;
|
|
static int port_forced;
|
|
static unsigned int synth_portlist[] = {
|
|
0x25e, 0x29e, 0x2de, 0x31e, 0x35e, 0x39e, 0
|
|
};
|
|
|
|
static u_char synth_status;
|
|
|
|
enum default_vars_id {
|
|
CAPS_START_ID = 0, CAPS_STOP_ID,
|
|
RATE_ID, PITCH_ID,
|
|
VOL_ID, TONE_ID, PUNCT_ID,
|
|
VOICE_ID, FREQUENCY_ID,
|
|
DIRECT_ID, V_LAST_VAR_ID,
|
|
NB_ID,
|
|
};
|
|
|
|
|
|
static struct var_t vars[NB_ID] = {
|
|
[CAPS_START_ID] = { CAPS_START, .u.s = {"\x01+35p" } },
|
|
[CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"\x01-35p" } },
|
|
[RATE_ID] = { RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL } },
|
|
[PITCH_ID] = { PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL } },
|
|
[VOL_ID] = { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
|
|
[TONE_ID] = { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
|
|
[PUNCT_ID] = { PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL } },
|
|
[VOICE_ID] = { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } },
|
|
[FREQUENCY_ID] = { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } },
|
|
[DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
|
|
V_LAST_VAR
|
|
};
|
|
|
|
/*
|
|
* These attributes will appear in /sys/accessibility/speakup/dtlk.
|
|
*/
|
|
static struct kobj_attribute caps_start_attribute =
|
|
__ATTR(caps_start, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute caps_stop_attribute =
|
|
__ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute freq_attribute =
|
|
__ATTR(freq, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute pitch_attribute =
|
|
__ATTR(pitch, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute punct_attribute =
|
|
__ATTR(punct, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute rate_attribute =
|
|
__ATTR(rate, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute tone_attribute =
|
|
__ATTR(tone, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute voice_attribute =
|
|
__ATTR(voice, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute vol_attribute =
|
|
__ATTR(vol, 0644, spk_var_show, spk_var_store);
|
|
|
|
static struct kobj_attribute delay_time_attribute =
|
|
__ATTR(delay_time, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute direct_attribute =
|
|
__ATTR(direct, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute full_time_attribute =
|
|
__ATTR(full_time, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute jiffy_delta_attribute =
|
|
__ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
|
|
static struct kobj_attribute trigger_time_attribute =
|
|
__ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
|
|
|
|
/*
|
|
* Create a group of attributes so that we can create and destroy them all
|
|
* at once.
|
|
*/
|
|
static struct attribute *synth_attrs[] = {
|
|
&caps_start_attribute.attr,
|
|
&caps_stop_attribute.attr,
|
|
&freq_attribute.attr,
|
|
&pitch_attribute.attr,
|
|
&punct_attribute.attr,
|
|
&rate_attribute.attr,
|
|
&tone_attribute.attr,
|
|
&voice_attribute.attr,
|
|
&vol_attribute.attr,
|
|
&delay_time_attribute.attr,
|
|
&direct_attribute.attr,
|
|
&full_time_attribute.attr,
|
|
&jiffy_delta_attribute.attr,
|
|
&trigger_time_attribute.attr,
|
|
NULL, /* need to NULL terminate the list of attributes */
|
|
};
|
|
|
|
static struct spk_synth synth_dtlk = {
|
|
.name = "dtlk",
|
|
.version = DRV_VERSION,
|
|
.long_name = "DoubleTalk PC",
|
|
.init = "\x01@\x01\x31y",
|
|
.procspeech = PROCSPEECH,
|
|
.clear = SYNTH_CLEAR,
|
|
.delay = 500,
|
|
.trigger = 30,
|
|
.jiffies = 50,
|
|
.full = 1000,
|
|
.startup = SYNTH_START,
|
|
.checkval = SYNTH_CHECK,
|
|
.vars = vars,
|
|
.io_ops = &spk_serial_io_ops,
|
|
.probe = synth_probe,
|
|
.release = dtlk_release,
|
|
.synth_immediate = synth_immediate,
|
|
.catch_up = do_catch_up,
|
|
.flush = synth_flush,
|
|
.is_alive = spk_synth_is_alive_nop,
|
|
.synth_adjust = NULL,
|
|
.read_buff_add = NULL,
|
|
.get_index = spk_synth_get_index,
|
|
.indexing = {
|
|
.command = "\x01%di",
|
|
.lowindex = 1,
|
|
.highindex = 5,
|
|
.currindex = 1,
|
|
},
|
|
.attributes = {
|
|
.attrs = synth_attrs,
|
|
.name = "dtlk",
|
|
},
|
|
};
|
|
|
|
static inline bool synth_readable(void)
|
|
{
|
|
synth_status = inb_p(speakup_info.port_tts + UART_RX);
|
|
return (synth_status & TTS_READABLE) != 0;
|
|
}
|
|
|
|
static inline bool synth_writable(void)
|
|
{
|
|
synth_status = inb_p(speakup_info.port_tts + UART_RX);
|
|
return (synth_status & TTS_WRITABLE) != 0;
|
|
}
|
|
|
|
static inline bool synth_full(void)
|
|
{
|
|
synth_status = inb_p(speakup_info.port_tts + UART_RX);
|
|
return (synth_status & TTS_ALMOST_FULL) != 0;
|
|
}
|
|
|
|
static void spk_out(const char ch)
|
|
{
|
|
int timeout = SPK_XMITR_TIMEOUT;
|
|
|
|
while (!synth_writable()) {
|
|
if (!--timeout)
|
|
break;
|
|
udelay(1);
|
|
}
|
|
outb_p(ch, speakup_info.port_tts);
|
|
timeout = SPK_XMITR_TIMEOUT;
|
|
while (synth_writable()) {
|
|
if (!--timeout)
|
|
break;
|
|
udelay(1);
|
|
}
|
|
}
|
|
|
|
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 = 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;
|
|
}
|
|
synth_buffer_skip_nonlatin1();
|
|
if (synth_buffer_empty()) {
|
|
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
|
|
break;
|
|
}
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
delay_time_val = delay_time->u.n.value;
|
|
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
|
|
if (synth_full()) {
|
|
schedule_timeout(msecs_to_jiffies(delay_time_val));
|
|
continue;
|
|
}
|
|
set_current_state(TASK_RUNNING);
|
|
spin_lock_irqsave(&speakup_info.spinlock, flags);
|
|
ch = synth_buffer_getc();
|
|
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
|
|
if (ch == '\n')
|
|
ch = PROCSPEECH;
|
|
spk_out(ch);
|
|
if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) {
|
|
spk_out(PROCSPEECH);
|
|
spin_lock_irqsave(&speakup_info.spinlock, flags);
|
|
delay_time_val = delay_time->u.n.value;
|
|
jiffy_delta_val = jiffy_delta->u.n.value;
|
|
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
|
|
schedule_timeout(msecs_to_jiffies(delay_time_val));
|
|
jiff_max = jiffies + jiffy_delta_val;
|
|
}
|
|
}
|
|
spk_out(PROCSPEECH);
|
|
}
|
|
|
|
static const char *synth_immediate(struct spk_synth *synth, const char *buf)
|
|
{
|
|
u_char ch;
|
|
|
|
while ((ch = (u_char)*buf)) {
|
|
if (synth_full())
|
|
return buf;
|
|
if (ch == '\n')
|
|
ch = PROCSPEECH;
|
|
spk_out(ch);
|
|
buf++;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void synth_flush(struct spk_synth *synth)
|
|
{
|
|
outb_p(SYNTH_CLEAR, speakup_info.port_tts);
|
|
while (synth_writable())
|
|
cpu_relax();
|
|
}
|
|
|
|
static char synth_read_tts(void)
|
|
{
|
|
u_char ch;
|
|
|
|
while (!synth_readable())
|
|
cpu_relax();
|
|
ch = synth_status & 0x7f;
|
|
outb_p(ch, speakup_info.port_tts);
|
|
while (synth_readable())
|
|
cpu_relax();
|
|
return (char)ch;
|
|
}
|
|
|
|
/* interrogate the DoubleTalk PC and return its settings */
|
|
static struct synth_settings *synth_interrogate(struct spk_synth *synth)
|
|
{
|
|
u_char *t;
|
|
static char buf[sizeof(struct synth_settings) + 1];
|
|
int total, i;
|
|
static struct synth_settings status;
|
|
|
|
synth_immediate(synth, "\x18\x01?");
|
|
for (total = 0, i = 0; i < 50; i++) {
|
|
buf[total] = synth_read_tts();
|
|
if (total > 2 && buf[total] == 0x7f)
|
|
break;
|
|
if (total < sizeof(struct synth_settings))
|
|
total++;
|
|
}
|
|
t = buf;
|
|
/* serial number is little endian */
|
|
status.serial_number = t[0] + t[1] * 256;
|
|
t += 2;
|
|
for (i = 0; *t != '\r'; t++) {
|
|
status.rom_version[i] = *t;
|
|
if (i < sizeof(status.rom_version) - 1)
|
|
i++;
|
|
}
|
|
status.rom_version[i] = 0;
|
|
t++;
|
|
status.mode = *t++;
|
|
status.punc_level = *t++;
|
|
status.formant_freq = *t++;
|
|
status.pitch = *t++;
|
|
status.speed = *t++;
|
|
status.volume = *t++;
|
|
status.tone = *t++;
|
|
status.expression = *t++;
|
|
status.ext_dict_loaded = *t++;
|
|
status.ext_dict_status = *t++;
|
|
status.free_ram = *t++;
|
|
status.articulation = *t++;
|
|
status.reverb = *t++;
|
|
status.eob = *t++;
|
|
return &status;
|
|
}
|
|
|
|
static int synth_probe(struct spk_synth *synth)
|
|
{
|
|
unsigned int port_val = 0;
|
|
int i;
|
|
struct synth_settings *sp;
|
|
|
|
pr_info("Probing for DoubleTalk.\n");
|
|
if (port_forced) {
|
|
speakup_info.port_tts = port_forced;
|
|
pr_info("probe forced to %x by kernel command line\n",
|
|
speakup_info.port_tts);
|
|
if ((port_forced & 0xf) != 0xf)
|
|
pr_info("warning: port base should probably end with f\n");
|
|
if (synth_request_region(speakup_info.port_tts - 1,
|
|
SYNTH_IO_EXTENT)) {
|
|
pr_warn("sorry, port already reserved\n");
|
|
return -EBUSY;
|
|
}
|
|
port_val = inw(speakup_info.port_tts - 1);
|
|
synth_lpc = speakup_info.port_tts - 1;
|
|
} else {
|
|
for (i = 0; synth_portlist[i]; i++) {
|
|
if (synth_request_region(synth_portlist[i],
|
|
SYNTH_IO_EXTENT))
|
|
continue;
|
|
port_val = inw(synth_portlist[i]) & 0xfbff;
|
|
if (port_val == 0x107f) {
|
|
synth_lpc = synth_portlist[i];
|
|
speakup_info.port_tts = synth_lpc + 1;
|
|
break;
|
|
}
|
|
synth_release_region(synth_portlist[i],
|
|
SYNTH_IO_EXTENT);
|
|
}
|
|
}
|
|
port_val &= 0xfbff;
|
|
if (port_val != 0x107f) {
|
|
pr_info("DoubleTalk PC: not found\n");
|
|
if (synth_lpc)
|
|
synth_release_region(synth_lpc, SYNTH_IO_EXTENT);
|
|
return -ENODEV;
|
|
}
|
|
while (inw_p(synth_lpc) != 0x147f)
|
|
cpu_relax(); /* wait until it's ready */
|
|
sp = synth_interrogate(synth);
|
|
pr_info("%s: %03x-%03x, ROM ver %s, s/n %u, driver: %s\n",
|
|
synth->long_name, synth_lpc, synth_lpc + SYNTH_IO_EXTENT - 1,
|
|
sp->rom_version, sp->serial_number, synth->version);
|
|
synth->alive = 1;
|
|
return 0;
|
|
}
|
|
|
|
static void dtlk_release(struct spk_synth *synth)
|
|
{
|
|
spk_stop_serial_interrupt();
|
|
if (speakup_info.port_tts)
|
|
synth_release_region(speakup_info.port_tts - 1,
|
|
SYNTH_IO_EXTENT);
|
|
speakup_info.port_tts = 0;
|
|
}
|
|
|
|
module_param_hw_named(port, port_forced, int, ioport, 0444);
|
|
module_param_named(start, synth_dtlk.startup, short, 0444);
|
|
module_param_named(rate, vars[RATE_ID].u.n.default_val, int, 0444);
|
|
module_param_named(pitch, vars[PITCH_ID].u.n.default_val, int, 0444);
|
|
module_param_named(vol, vars[VOL_ID].u.n.default_val, int, 0444);
|
|
module_param_named(tone, vars[TONE_ID].u.n.default_val, int, 0444);
|
|
module_param_named(punct, vars[PUNCT_ID].u.n.default_val, int, 0444);
|
|
module_param_named(voice, vars[VOICE_ID].u.n.default_val, int, 0444);
|
|
module_param_named(frequency, vars[FREQUENCY_ID].u.n.default_val, int, 0444);
|
|
module_param_named(direct, vars[DIRECT_ID].u.n.default_val, int, 0444);
|
|
|
|
|
|
MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
|
|
MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
|
|
MODULE_PARM_DESC(rate, "Set the rate variable on load.");
|
|
MODULE_PARM_DESC(pitch, "Set the pitch variable on load.");
|
|
MODULE_PARM_DESC(vol, "Set the vol variable on load.");
|
|
MODULE_PARM_DESC(tone, "Set the tone variable on load.");
|
|
MODULE_PARM_DESC(punct, "Set the punct variable on load.");
|
|
MODULE_PARM_DESC(voice, "Set the voice variable on load.");
|
|
MODULE_PARM_DESC(frequency, "Set the frequency variable on load.");
|
|
MODULE_PARM_DESC(direct, "Set the direct variable on load.");
|
|
|
|
|
|
module_spk_synth(synth_dtlk);
|
|
|
|
MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
|
|
MODULE_AUTHOR("David Borowski");
|
|
MODULE_DESCRIPTION("Speakup support for DoubleTalk PC synthesizers");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION(DRV_VERSION);
|
|
|