path: root/drivers/media/IR/mceusb.c

/*
 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
 *
 * Copyright (c) 2010 by Jarod Wilson <jarod@redhat.com>
 *
 * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan
 * Conti, Martin Blatter and Daniel Melander, the latter of which was
 * in turn also based on the lirc_atiusb driver by Paul Miller. The
 * two mce drivers were merged into one by Jarod Wilson, with transmit
 * support for the 1st-gen device added primarily by Patrick Calhoun,
 * with a bit of tweaks by Jarod. Debugging improvements and proper
 * support for what appears to be 3rd-gen hardware added by Jarod.
 * Initial port from lirc driver to ir-core drivery by Jarod, based
 * partially on a port to an earlier proposed IR infrastructure by
 * Jon Smirl, which included enhancements and simplifications to the
 * incoming IR buffer parsing routines.
 *
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#include <linux/device.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/input.h>
#include <media/ir-core.h>
#include <media/ir-common.h>

#define DRIVER_VERSION	"1.91"
#define DRIVER_AUTHOR	"Jarod Wilson <jarod@wilsonet.com>"
#define DRIVER_DESC	"Windows Media Center Ed. eHome Infrared Transceiver " \
			"device driver"
#define DRIVER_NAME	"mceusb"

#define USB_BUFLEN	32	/* USB reception buffer length */
#define USB_CTRL_MSG_SZ	2	/* Size of usb ctrl msg on gen1 hw */
#define MCE_G1_INIT_MSGS 40	/* Init messages on gen1 hw to throw out */

/* MCE constants */
#define MCE_CMDBUF_SIZE	384 /* MCE Command buffer length */
#define MCE_TIME_UNIT	50 /* Approx 50us resolution */
#define MCE_CODE_LENGTH	5 /* Normal length of packet (with header) */
#define MCE_PACKET_SIZE	4 /* Normal length of packet (without header) */
#define MCE_PACKET_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */
#define MCE_CONTROL_HEADER 0x9F /* MCE status header */
#define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */
#define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */
#define MCE_DEFAULT_TX_MASK 0x03 /* Val opts: TX1=0x01, TX2=0x02, ALL=0x03 */
#define MCE_PULSE_BIT	0x80 /* Pulse bit, MSB set == PULSE else SPACE */
#define MCE_PULSE_MASK	0x7F /* Pulse mask */
#define MCE_MAX_PULSE_LENGTH 0x7F /* Longest transmittable pulse symbol */
#define MCE_PACKET_LENGTH_MASK  0x1F /* Packet length mask */


/* module parameters */
#ifdef CONFIG_USB_DEBUG
static int debug = 1;
#else
static int debug;
#endif

/* general constants */
#define SEND_FLAG_IN_PROGRESS	1
#define SEND_FLAG_COMPLETE	2
#define RECV_FLAG_IN_PROGRESS	3
#define RECV_FLAG_COMPLETE	4

#define MCEUSB_RX		1
#define MCEUSB_TX		2

#define VENDOR_PHILIPS		0x0471
#define VENDOR_SMK		0x0609
#define VENDOR_TATUNG		0x1460
#define VENDOR_GATEWAY		0x107b
#define VENDOR_SHUTTLE		0x1308
#define VENDOR_SHUTTLE2		0x051c
#define VENDOR_MITSUMI		0x03ee
#define VENDOR_TOPSEED		0x1784
#define VENDOR_RICAVISION	0x179d
#define VENDOR_ITRON		0x195d
#define VENDOR_FIC		0x1509
#define VENDOR_LG		0x043e
#define VENDOR_MICROSOFT	0x045e
#define VENDOR_FORMOSA		0x147a
#define VENDOR_FINTEK		0x1934
#define VENDOR_PINNACLE		0x2304
#define VENDOR_ECS		0x1019
#define VENDOR_WISTRON		0x0fb8
#define VENDOR_COMPRO		0x185b
#define VENDOR_NORTHSTAR	0x04eb
#define VENDOR_REALTEK		0x0bda
#define VENDOR_TIVO		0x105a

static struct usb_device_id mceusb_dev_table[] = {
	/* Original Microsoft MCE IR Transceiver (often HP-branded) */
	{ USB_DEVICE(VENDOR_MICROSOFT, 0x006d) },
	/* Philips Infrared Transceiver - Sahara branded */
	{ USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
	/* Philips Infrared Transceiver - HP branded */
	{ USB_DEVICE(VENDOR_PHILIPS, 0x060c) },
	/* Philips SRM5100 */
	{ USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
	/* Philips Infrared Transceiver - Omaura */
	{ USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
	/* Philips Infrared Transceiver - Spinel plus */
	{ USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
	/* Philips eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
	/* Philips/Spinel plus IR transceiver for ASUS */
	{ USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
	/* Philips/Spinel plus IR transceiver for ASUS */
	{ USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
	/* Realtek MCE IR Receiver */
	{ USB_DEVICE(VENDOR_REALTEK, 0x0161) },
	/* SMK/Toshiba G83C0004D410 */
	{ USB_DEVICE(VENDOR_SMK, 0x031d) },
	/* SMK eHome Infrared Transceiver (Sony VAIO) */
	{ USB_DEVICE(VENDOR_SMK, 0x0322) },
	/* bundled with Hauppauge PVR-150 */
	{ USB_DEVICE(VENDOR_SMK, 0x0334) },
	/* SMK eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_SMK, 0x0338) },
	/* Tatung eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_TATUNG, 0x9150) },
	/* Shuttle eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
	/* Shuttle eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
	/* Gateway eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
	/* Mitsumi */
	{ USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
	/* Topseed eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_TOPSEED, 0x0001) },
	/* Topseed HP eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_TOPSEED, 0x0006) },
	/* Topseed eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_TOPSEED, 0x0007) },
	/* Topseed eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_TOPSEED, 0x0008) },
	/* Topseed eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_TOPSEED, 0x000a) },
	/* Topseed eHome Infrared Transceiver */
	{ USB_DEVICE(VENDOR_TOPSEED, 0x0011) },
	/* Ricavision internal Infrared Tr