linux-imx

/***************************************************************************

 *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *

 *                                                                         *

 *   Based on Logitech G13 driver (v0.4)                                   *

 *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *

 *                                                                         *

 *   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, version 2 of the License.               *

 *                                                                         *

 *   This driver 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.                              *

 *                                                                         *

 *   You should have received a copy of the GNU General Public License     *

 *   along with this software. If not see <http://www.gnu.org/licenses/>.  *

 ***************************************************************************/

​

#include <linux/hid.h>

#include <linux/hid-debug.h>

#include <linux/input.h>

#include "hid-ids.h"

​

#include <linux/fb.h>

#include <linux/vmalloc.h>

#include <linux/backlight.h>

#include <linux/lcd.h>

​

#include <linux/leds.h>

​

#include <linux/seq_file.h>

#include <linux/debugfs.h>

​

#include <linux/completion.h>

#include <linux/uaccess.h>

#include <linux/module.h>

#include <media/rc-core.h>

​

#include "hid-picolcd.h"

​

​

int picolcd_raw_cir(struct picolcd_data *data,

        struct hid_report *report, u8 *raw_data, int size)

{

    unsigned long flags;

    int i, w, sz;

    struct ir_raw_event rawir = {};

​

    /* ignore if rc_dev is NULL or status is shunned */

    spin_lock_irqsave(&data->lock, flags);

    if (!data->rc_dev || (data->status & PICOLCD_CIR_SHUN)) {

        spin_unlock_irqrestore(&data->lock, flags);

        return 1;

    }

    spin_unlock_irqrestore(&data->lock, flags);

​

    /* PicoLCD USB packets contain 16-bit intervals in network order,

     * with value negated for pulse. Intervals are in microseconds.

     *

     * Note: some userspace LIRC code for PicoLCD says negated values

     * for space - is it a matter of IR chip? (pulse for my TSOP2236)

     *