[PATCH] dvb: usb: support Medion hybrid USB2.0 DVB-T/analogue box

config DVB_USB_A800

	tristate "AVerMedia AverTV DVB-T USB 2.0 (A800)"

	depends on DVB_USB

	select DVB_DIB3000MC

	help

	  Say Y here to support the AVerMedia AverTV DVB-T USB 2.0 (A800) receiver.

config DVB_USB_DIBUSB_MB

	tristate "DiBcom USB DVB-T devices (based on the DiB3000M-B) (see help for device list)"

	depends on DVB_USB

	select DVB_DIB3000MB

	help

	  Support for USB 1.1 and 2.0 DVB-T receivers based on reference designs made by

	  DiBcom (<http://www.dibcom.fr>) equipped with a DiB3000M-B demodulator.

config DVB_USB_DIBUSB_MC

	tristate "DiBcom USB DVB-T devices (based on the DiB3000M-C/P) (see help for device list)"

	depends on DVB_USB

	select DVB_DIB3000MC

	help

	  Support for 2.0 DVB-T receivers based on reference designs made by

	  DiBcom (<http://www.dibcom.fr>) equipped with a DiB3000M-C/P demodulator.

config DVB_USB_UMT_010

	tristate "HanfTek UMT-010 DVB-T USB2.0 support"

	depends on DVB_USB

	select DVB_DIB3000MC

	help

	  Say Y here to support the HanfTek UMT-010 USB2.0 stick-sized DVB-T receiver.

config DVB_USB_CXUSB

	tristate "Medion MD95700 hybrid USB2.0 (Conexant) support"

	depends on DVB_USB

	select DVB_CX22702

	help

	  Say Y here to support the Medion MD95700 hybrid USB2.0 device. Currently

	  only the DVB-T part is supported and MPEG2 data transfer are not working

	  :(.

config DVB_USB_DIGITV

	tristate "Nebula Electronics uDigiTV DVB-T USB2.0 support"

	depends on DVB_USB

	select DVB_NXT6000

	select DVB_MT352

	help

	  Say Y here to support the Nebula Electronics uDigitV USB2.0 DVB-T receiver.

config DVB_USB_NOVA_T_USB2

	tristate "Hauppauge WinTV-NOVA-T usb2 DVB-T USB2.0 support"

	depends on DVB_USB

	select DVB_DIB3000MC

	help

	  Say Y here to support the Hauppauge WinTV-NOVA-T usb2 DVB-T USB2.0 receiver.

dvb-usb-digitv-objs = digitv.o

obj-$(CONFIG_DVB_USB_DIGITV) += dvb-usb-digitv.o

dvb-usb-cxusb-objs = cxusb.o

obj-$(CONFIG_DVB_USB_CXUSB) += dvb-usb-cxusb.o

EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/

/* DVB USB compliant linux driver for Conexant USB reference design.

 *

 * The Conexant reference design I saw on their website was only for analogue

 * capturing (using the cx25842). The box I took to write this driver (reverse

 * engineered) is the one labeled Medion MD95700. In addition to the cx25842

 * for analogue capturing it also has a cx22702 DVB-T demodulator on the main

 * board. Besides it has a atiremote (X10) and a USB2.0 hub onboard.

 *

 * Maybe it is a little bit premature to call this driver cxusb, but I assume

 * the USB protocol is identical or at least inherited from the reference

 * design, so it can be reused for the "analogue-only" device (if it will

 * appear at all).

 *

 * TODO: check if the cx25840-driver (from ivtv) can be used for the analogue

 * part

 *

 * FIXME: We're getting a lock and signal, but the isochronous transfer is empty

 * for DVB-T.

 *

 * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@desy.de)

 *

 *	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.

 *

 * see Documentation/dvb/README.dvb-usb for more information

 */

#include "cxusb.h"

#include "cx22702.h"

/* debug */

int dvb_usb_cxusb_debug;

module_param_named(debug,dvb_usb_cxusb_debug, int, 0644);

MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);

static int cxusb_ctrl_msg(struct dvb_usb_device *d,

		u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen)

{

	int wo = (rbuf == NULL || rlen == 0); /* write-only */

	u8 sndbuf[1+wlen];

	memset(sndbuf,0,1+wlen);

	sndbuf[0] = cmd;

	memcpy(&sndbuf[1],wbuf,wlen);

	if (wo)

		dvb_usb_generic_write(d,sndbuf,1+wlen);

	else

		dvb_usb_generic_rw(d,sndbuf,1+wlen,rbuf,rlen,0);

	return 0;

}

/* I2C */

static void cxusb_set_i2c_path(struct dvb_usb_device *d, enum cxusb_i2c_pathes path)

{

	struct cxusb_state *st = d->priv;

	u8 o[2],i;

	if (path == st->cur_i2c_path)

		return;

	o[0] = IOCTL_SET_I2C_PATH;

	switch (path) {

		case PATH_CX22702:

			o[1] = 0;

			break;

		case PATH_TUNER_OTHER:

			o[1] = 1;

			break;

		default:

			err("unkown i2c path");

			return;

	}

	cxusb_ctrl_msg(d,CMD_IOCTL,o,2,&i,1);

	if (i != 0x01)

		deb_info("i2c_path setting failed.\n");

	st->cur_i2c_path = path;

}

static int cxusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)

{

	struct dvb_usb_device *d = i2c_get_adapdata(adap);

	int i;

	if (down_interruptible(&d->i2c_sem) < 0)

		return -EAGAIN;

	if (num > 2)

		warn("more than 2 i2c messages at a time is not handled yet. TODO.");

	for (i = 0; i < num; i++) {

		switch (msg[i].addr) {

			case 0x63:

				cxusb_set_i2c_path(d,PATH_CX22702);

				break;

			default:

				cxusb_set_i2c_path(d,PATH_TUNER_OTHER);

				break;

		}

		/* read request */

		if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {

			u8 obuf[3+msg[i].len], ibuf[1+msg[i+1].len];

			obuf[0] = msg[i].len;

			obuf[1] = msg[i+1].len;

			obuf[2] = msg[i].addr;

			memcpy(&obuf[3],msg[i].buf,msg[i].len);

			if (cxusb_ctrl_msg(d, CMD_I2C_READ,

						obuf, 3+msg[i].len,

						ibuf, 1+msg[i+1].len) < 0)

				break;

			if (ibuf[0] != 0x08)

				deb_info("i2c read could have been failed\n");

			memcpy(msg[i+1].buf,&ibuf[1],msg[i+1].len);

			i++;

		} else { /* write */

			u8 obuf[2+msg[i].len], ibuf;

			obuf[0] = msg[i].addr;

			obuf[1] = msg[i].len;

			memcpy(&obuf[2],msg[i].buf,msg[i].len);

			if (cxusb_ctrl_msg(d,CMD_I2C_WRITE, obuf, 2+msg[i].len, &ibuf,1) < 0)

				break;

			if (ibuf != 0x08)

				deb_info("i2c write could have been failed\n");

		}

	}

	up(&d->i2c_sem);

	return i;

}

static u32 cxusb_i2c_func(struct i2c_adapter *adapter)

{

	return I2C_FUNC_I2C;

}

static struct i2c_algorithm cxusb_i2c_algo = {

	.name          = "Conexant USB I2C algorithm",

	.id            = I2C_ALGO_BIT,

	.master_xfer   = cxusb_i2c_xfer,

	.functionality = cxusb_i2c_func,

};

static int cxusb_power_ctrl(struct dvb_usb_device *d, int onoff)

{

	return 0;

}

static int cxusb_streaming_ctrl(struct dvb_usb_device *d, int onoff)

{

	return 0;

}

struct cx22702_config cxusb_cx22702_config = {

	.demod_address = 0x63,

	.pll_init = dvb_usb_pll_init_i2c,

	.pll_set  = dvb_usb_pll_set_i2c,

};

/* Callbacks for DVB USB */

static int cxusb_tuner_attach(struct dvb_usb_device *d)

{

	u8 bpll[4] = { 0x0b, 0xdc, 0x9c, 0xa0 };

	d->pll_addr = 0x61;

	memcpy(d->pll_init,bpll,4);

	d->pll_desc = &dvb_pll_fmd1216me;

	return 0;

}

static int cxusb_frontend_attach(struct dvb_usb_device *d)

{

	u8 buf[2] = { 0x03, 0x00 };

	u8 b = 0;

	cxusb_ctrl_msg(d,0xde,&b,0,NULL,0);

	cxusb_set_i2c_path(d,PATH_TUNER_OTHER);

	cxusb_ctrl_msg(d,CMD_POWER_OFF, NULL, 0, &b, 1);

	if (usb_set_interface(d->udev,0,6) < 0)

		err("set interface failed\n");

	cxusb_ctrl_msg(d,0x36, buf, 2, NULL, 0);

	cxusb_set_i2c_path(d,PATH_CX22702);

	cxusb_ctrl_msg(d,CMD_POWER_ON, NULL, 0, &b, 1);

	if ((d->fe = cx22702_attach(&cxusb_cx22702_config, &d->i2c_adap)) != NULL)

		return 0;

	return -EIO;

}

/* DVB USB Driver stuff */

static struct dvb_usb_properties cxusb_properties;

static int cxusb_probe(struct usb_interface *intf,

		const struct usb_device_id *id)

{

	return dvb_usb_device_init(intf,&cxusb_properties,THIS_MODULE);

}

static struct usb_device_id cxusb_table [] = {

		{ USB_DEVICE(USB_VID_MEDION, USB_PID_MEDION_MD95700) },

		{}		/* Terminating entry */

};

MODULE_DEVICE_TABLE (usb, cxusb_table);

static struct dvb_usb_properties cxusb_properties = {

	.caps = DVB_USB_IS_AN_I2C_ADAPTER,

	.usb_ctrl = CYPRESS_FX2,

	.size_of_priv     = sizeof(struct cxusb_state),

	.streaming_ctrl   = cxusb_streaming_ctrl,

	.power_ctrl       = cxusb_power_ctrl,

	.frontend_attach  = cxusb_frontend_attach,

	.tuner_attach     = cxusb_tuner_attach,

	.i2c_algo         = &cxusb_i2c_algo,

	.generic_bulk_ctrl_endpoint = 0x01,

	/* parameter for the MPEG2-data transfer */

	.urb = {

		.type = DVB_USB_ISOC,

		.count = 5,

		.endpoint = 0x02,

		.u = {

			.isoc = {

				.framesperurb = 64,

				.framesize = 940*3,

				.interval = 1,

			}

		}

	},

	.num_device_descs = 1,

	.devices = {

		{   "Medion MD95700 (MDUSBTV-HYBRID)",

			{ NULL },

			{ &cxusb_table[0], NULL },

		},

	}

};

static struct usb_driver cxusb_driver = {

	.owner		= THIS_MODULE,

	.name		= "cxusb",

	.probe		= cxusb_probe,

	.disconnect = dvb_usb_device_exit,

	.id_table	= cxusb_table,

};

/* module stuff */

static int __init cxusb_module_init(void)

{

	int result;

	if ((result = usb_register(&cxusb_driver))) {

		err("usb_register failed. Error number %d",result);

		return result;

	}

	return 0;

}

static void __exit cxusb_module_exit(void)

{

	/* deregister this driver from the USB subsystem */

	usb_deregister(&cxusb_driver);

}

module_init (cxusb_module_init);

module_exit (cxusb_module_exit);

MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");

MODULE_DESCRIPTION("Driver for Conexant USB2.0 hybrid reference design");

MODULE_VERSION("1.0-alpha");

MODULE_LICENSE("GPL");

#ifndef _DVB_USB_CXUSB_H_

#define _DVB_USB_CXUSB_H_

#define DVB_USB_LOG_PREFIX "digitv"

#include "dvb-usb.h"

extern int dvb_usb_cxusb_debug;

#define deb_info(args...)   dprintk(dvb_usb_cxusb_debug,0x01,args)

/* usb commands - some of it are guesses, don't have a reference yet */

#define CMD_I2C_WRITE    0x08

#define CMD_I2C_READ     0x09

#define CMD_IOCTL        0x0e

#define    IOCTL_SET_I2C_PATH 0x02

#define CMD_POWER_OFF    0x50

#define CMD_POWER_ON     0x51

enum cxusb_i2c_pathes {

	PATH_UNDEF       = 0x00,

	PATH_CX22702     = 0x01,

	PATH_TUNER_OTHER = 0x02,

};

struct cxusb_state {

	enum cxusb_i2c_pathes cur_i2c_path;

};

#endif

#define USB_VID_HANFTEK						0x15f4

#define USB_VID_HAUPPAUGE					0x2040

#define USB_VID_HYPER_PALTEK				0x1025

#define USB_VID_MEDION						0x1660

#define USB_VID_VISIONPLUS					0x13d3

#define USB_VID_TWINHAN						0x1822

#define USB_VID_ULTIMA_ELECTRONIC			0x05d8

#define USB_PID_DVICO_BLUEBIRD_LGDT			0xd820

#define USB_PID_DVICO_BLUEBIRD_LGZ201_1		0xdb01

#define USB_PID_DVICO_BLUEBIRD_TH7579_2		0xdb11

#define USB_PID_MEDION_MD95700				0x0932

#endif