linux/drivers/accessibility/speakup/speakup_dtlk.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * originally written by: Kirk Reiser <[email protected]>
 * this version considerably modified by David Borowski, [email protected]
 *
 * 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 …
#define PROCSPEECH …

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[] = …;

static u_char synth_status;

enum default_vars_id { … };


static struct var_t vars[NB_ID] = …;

/*
 * These attributes will appear in /sys/accessibility/speakup/dtlk.
 */
static struct kobj_attribute caps_start_attribute = …;
static struct kobj_attribute caps_stop_attribute = …;
static struct kobj_attribute freq_attribute = …;
static struct kobj_attribute pitch_attribute = …;
static struct kobj_attribute punct_attribute = …;
static struct kobj_attribute rate_attribute = …;
static struct kobj_attribute tone_attribute = …;
static struct kobj_attribute voice_attribute = …;
static struct kobj_attribute vol_attribute = …;

static struct kobj_attribute delay_time_attribute = …;
static struct kobj_attribute direct_attribute = …;
static struct kobj_attribute full_time_attribute = …;
static struct kobj_attribute jiffy_delta_attribute = …;
static struct kobj_attribute trigger_time_attribute = …;

/*
 * Create a group of attributes so that we can create and destroy them all
 * at once.
 */
static struct attribute *synth_attrs[] = …;

static struct spk_synth synth_dtlk = …;

static inline bool synth_readable(void)
{ … }

static inline bool synth_writable(void)
{ … }

static inline bool synth_full(void)
{ … }

static void spk_out(const char ch)
{ … }

static void do_catch_up(struct spk_synth *synth)
{ … }

static const char *synth_immediate(struct spk_synth *synth, const char *buf)
{ … }

static void synth_flush(struct spk_synth *synth)
{ … }

static char synth_read_tts(void)
{ … }

/* interrogate the DoubleTalk PC and return its settings */
static struct synth_settings *synth_interrogate(struct spk_synth *synth)
{ … }

static int synth_probe(struct spk_synth *synth)
{ … }

static void dtlk_release(struct spk_synth *synth)
{ … }

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(…) …;
MODULE_PARM_DESC(…) …;
MODULE_PARM_DESC(…) …;
MODULE_PARM_DESC(…) …;
MODULE_PARM_DESC(…) …;
MODULE_PARM_DESC(…) …;
MODULE_PARM_DESC(…) …;
MODULE_PARM_DESC(…) …;
MODULE_PARM_DESC(…) …;
MODULE_PARM_DESC(…) …;


module_spk_synth(…);

MODULE_AUTHOR(…) …;
MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_VERSION(…);