cregit-Linux how code gets into the kernel

Release 4.7 drivers/staging/speakup/speakup_audptr.c

/*
 * 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.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * specificly written as a driver for the speakup screenreview
 * s not a general device driver.
 */
#include "spk_priv.h"
#include "speakup.h"
#include "serialio.h"


#define DRV_VERSION "2.11"

#define SYNTH_CLEAR 0x18 
/* flush synth buffer */

#define PROCSPEECH '\r' 
/* start synth processing speech char */

static int synth_probe(struct spk_synth *synth);
static void synth_flush(struct spk_synth *synth);


static struct var_t vars[] = {
	{ CAPS_START, .u.s = {"\x05[f99]" } },
	{ CAPS_STOP, .u.s = {"\x05[f80]" } },
	{ RATE, .u.n = {"\x05[r%d]", 10, 0, 20, 100, -10, NULL } },
	{ PITCH, .u.n = {"\x05[f%d]", 80, 39, 4500, 0, 0, NULL } },
	{ VOL, .u.n = {"\x05[g%d]", 21, 0, 40, 0, 0, NULL } },
	{ TONE, .u.n = {"\x05[s%d]", 9, 0, 63, 0, 0, NULL } },
	{ PUNCT, .u.n = {"\x05[A%c]", 0, 0, 3, 0, 0, "nmsa" } },
	{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
	V_LAST_VAR
};

/*
 * These attributes will appear in /sys/accessibility/speakup/audptr.
 */

static struct kobj_attribute caps_start_attribute =
	__ATTR(caps_start, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute caps_stop_attribute =
	__ATTR(caps_stop, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute pitch_attribute =
	__ATTR(pitch, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute punct_attribute =
	__ATTR(punct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute rate_attribute =
	__ATTR(rate, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute tone_attribute =
	__ATTR(tone, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute vol_attribute =
	__ATTR(vol, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);


static struct kobj_attribute delay_time_attribute =
	__ATTR(delay_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute direct_attribute =
	__ATTR(direct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute full_time_attribute =
	__ATTR(full_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute jiffy_delta_attribute =
	__ATTR(jiffy_delta, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);

static struct kobj_attribute trigger_time_attribute =
	__ATTR(trigger_time, S_IWUSR|S_IRUGO, 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,
	&pitch_attribute.attr,
	&punct_attribute.attr,
	&rate_attribute.attr,
	&tone_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_audptr = {
	.name = "audptr",
	.version = DRV_VERSION,
	.long_name = "Audapter",
	.init = "\x05[D1]\x05[Ol]",
	.procspeech = PROCSPEECH,
	.clear = SYNTH_CLEAR,
	.delay = 400,
	.trigger = 50,
	.jiffies = 30,
	.full = 18000,
	.startup = SYNTH_START,
	.checkval = SYNTH_CHECK,
	.vars = vars,
	.probe = synth_probe,
	.release = spk_serial_release,
	.synth_immediate = spk_synth_immediate,
	.catch_up = spk_do_catch_up,
	.flush = synth_flush,
	.is_alive = spk_synth_is_alive_restart,
	.synth_adjust = NULL,
	.read_buff_add = NULL,
	.get_index = NULL,
	.indexing = {
		.command = NULL,
		.lowindex = 0,
		.highindex = 0,
		.currindex = 0,
        },
	.attributes = {
		.attrs = synth_attrs,
		.name = "audptr",
        },
};


static void synth_flush(struct spk_synth *synth) { int timeout = SPK_XMITR_TIMEOUT; while (spk_serial_tx_busy()) { if (!--timeout) break; udelay(1); } outb(SYNTH_CLEAR, speakup_info.port_tts); spk_serial_out(PROCSPEECH); }

Contributors

PersonTokensPropCommitsCommitProp
william hubbswilliam hubbs49100.00%1100.00%
Total49100.00%1100.00%


static void synth_version(struct spk_synth *synth) { unsigned char test = 0; char synth_id[40] = ""; spk_synth_immediate(synth, "\x05[Q]"); synth_id[test] = spk_serial_in(); if (synth_id[test] == 'A') { do { /* read version string from synth */ synth_id[++test] = spk_serial_in(); } while (synth_id[test] != '\n' && test < 32); synth_id[++test] = 0x00; } if (synth_id[0] == 'A') pr_info("%s version: %s", synth->long_name, synth_id); }

Contributors

PersonTokensPropCommitsCommitProp
william hubbswilliam hubbs106100.00%1100.00%
Total106100.00%1100.00%


static int synth_probe(struct spk_synth *synth) { int failed; failed = spk_serial_synth_probe(synth); if (failed == 0) synth_version(synth); synth->alive = !failed; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
william hubbswilliam hubbs4197.62%150.00%
samuel thibaultsamuel thibault12.38%150.00%
Total42100.00%2100.00%

module_param_named(ser, synth_audptr.ser, int, S_IRUGO); module_param_named(start, synth_audptr.startup, short, S_IRUGO); MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based)."); MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); module_spk_synth(synth_audptr); MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); MODULE_AUTHOR("David Borowski"); MODULE_DESCRIPTION("Speakup support for Audapter synthesizer"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION);

Overall Contributors

PersonTokensPropCommitsCommitProp
william hubbswilliam hubbs90595.67%114.29%
rusty russellrusty russell363.81%228.57%
vaishali thakkarvaishali thakkar20.21%114.29%
shalin mehtashalin mehta10.11%114.29%
shraddha barkeshraddha barke10.11%114.29%
samuel thibaultsamuel thibault10.11%114.29%
Total946100.00%7100.00%
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