Release 4.7 drivers/staging/speakup/fakekey.c
/* fakekey.c
* Functions for simulating keypresses.
*
* Copyright (C) 2010 the Speakup Team
*
* 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.
*/
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/preempt.h>
#include <linux/percpu.h>
#include <linux/input.h>
#include "speakup.h"
#define PRESSED 1
#define RELEASED 0
static DEFINE_PER_CPU(int, reporting_keystroke);
static struct input_dev *virt_keyboard;
int speakup_add_virtual_keyboard(void)
{
int err;
virt_keyboard = input_allocate_device();
if (!virt_keyboard)
return -ENOMEM;
virt_keyboard->name = "Speakup";
virt_keyboard->id.bustype = BUS_VIRTUAL;
virt_keyboard->phys = "speakup/input0";
virt_keyboard->dev.parent = NULL;
__set_bit(EV_KEY, virt_keyboard->evbit);
__set_bit(KEY_DOWN, virt_keyboard->keybit);
err = input_register_device(virt_keyboard);
if (err) {
input_free_device(virt_keyboard);
virt_keyboard = NULL;
}
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| william hubbs | william hubbs | 95 | 100.00% | 1 | 100.00% |
| Total | 95 | 100.00% | 1 | 100.00% |
void speakup_remove_virtual_keyboard(void)
{
if (virt_keyboard != NULL) {
input_unregister_device(virt_keyboard);
virt_keyboard = NULL;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| william hubbs | william hubbs | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
/*
* Send a simulated down-arrow to the application.
*/
void speakup_fake_down_arrow(void)
{
unsigned long flags;
/* disable keyboard interrupts */
local_irq_save(flags);
/* don't change CPU */
preempt_disable();
__this_cpu_write(reporting_keystroke, true);
input_report_key(virt_keyboard, KEY_DOWN, PRESSED);
input_report_key(virt_keyboard, KEY_DOWN, RELEASED);
input_sync(virt_keyboard);
__this_cpu_write(reporting_keystroke, false);
/* reenable preemption */
preempt_enable();
/* reenable keyboard interrupts */
local_irq_restore(flags);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| william hubbs | william hubbs | 57 | 83.82% | 1 | 33.33% |
| christoph lameter | christoph lameter | 6 | 8.82% | 1 | 33.33% |
| covici at ccs.covici.com | covici at ccs.covici.com | 5 | 7.35% | 1 | 33.33% |
| Total | 68 | 100.00% | 3 | 100.00% |
/*
* Are we handling a simulated keypress on the current CPU?
* Returns a boolean.
*/
bool speakup_fake_key_pressed(void)
{
return this_cpu_read(reporting_keystroke);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| william hubbs | william hubbs | 11 | 84.62% | 1 | 50.00% |
| christoph lameter | christoph lameter | 2 | 15.38% | 1 | 50.00% |
| Total | 13 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| william hubbs | william hubbs | 227 | 93.42% | 1 | 14.29% |
| christoph lameter | christoph lameter | 8 | 3.29% | 2 | 28.57% |
| covici at ccs.covici.com | covici at ccs.covici.com | 5 | 2.06% | 1 | 14.29% |
| samuel thibault | samuel thibault | 1 | 0.41% | 1 | 14.29% |
| shraddha barke | shraddha barke | 1 | 0.41% | 1 | 14.29% |
| jeff becker | jeff becker | 1 | 0.41% | 1 | 14.29% |
| Total | 243 | 100.00% | 7 | 100.00% |
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