linux-imx

/*

 *   imon.c:    input and display driver for SoundGraph iMON IR/VFD/LCD

 *

 *   Copyright(C) 2010  Jarod Wilson <jarod@wilsonet.com>

 *   Portions based on the original lirc_imon driver,

 *  Copyright(C) 2004  Venky Raju(dev@venky.ws)

 *

 *   Huge thanks to R. Geoff Newbury for invaluable debugging on the

 *   0xffdc iMON devices, and for sending me one to hack on, without

 *   which the support for them wouldn't be nearly as good. Thanks

 *   also to the numerous 0xffdc device owners that tested auto-config

 *   support for me and provided debug dumps from their devices.

 *

 *   imon 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.

 */

​

#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__

​

#include <linux/errno.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/ktime.h>

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/uaccess.h>

#include <linux/ratelimit.h>

​

#include <linux/input.h>

#include <linux/usb.h>

#include <linux/usb/input.h>

#include <media/rc-core.h>

​

#include <linux/timer.h>

​

#define MOD_AUTHOR  "Jarod Wilson <jarod@wilsonet.com>"

#define MOD_DESC    "Driver for SoundGraph iMON MultiMedia IR/Display"

#define MOD_NAME    "imon"

#define MOD_VERSION "0.9.4"

​

#define DISPLAY_MINOR_BASE  144

#define DEVICE_NAME "lcd%d"

​

#define BUF_CHUNK_SIZE  8

#define BUF_SIZE    128

​

#define BIT_DURATION    250 /* each bit received is 250us */

​

#define IMON_CLOCK_ENABLE_PACKETS   2

​

/*** P R O T O T Y P E S ***/

​

/* USB Callback prototypes */

static int imon_probe(struct usb_interface *interface,

              const struct usb_device_id *id);

static void imon_disconnect(struct usb_interface *interface);