drivers/media/dvb/dvb-usb/m920x.c - kernel/msm-4.9 - Gitiles

 /* DVB USB compliant linux driver for MSI Mega Sky 580 DVB-T USB2.0 receiver
  *
  * Copyright (C) 2006 Aapo Tahkola (aet@rasterburn.org)
  *
  *	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 "m920x.h"

 #include "mt352.h"
 #include "mt352_priv.h"
 #include "qt1010.h"

 /* debug */
 static int dvb_usb_m920x_debug;
 module_param_named(debug,dvb_usb_m920x_debug, int, 0644);
 MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);

 static struct dvb_usb_rc_key megasky_rc_keys [] = {
 	{ 0x0, 0x12, KEY_POWER },
 	{ 0x0, 0x1e, KEY_CYCLEWINDOWS }, /* min/max */
 	{ 0x0, 0x02, KEY_CHANNELUP },
 	{ 0x0, 0x05, KEY_CHANNELDOWN },
 	{ 0x0, 0x03, KEY_VOLUMEUP },
 	{ 0x0, 0x06, KEY_VOLUMEDOWN },
 	{ 0x0, 0x04, KEY_MUTE },
 	{ 0x0, 0x07, KEY_OK }, /* TS */
 	{ 0x0, 0x08, KEY_STOP },
 	{ 0x0, 0x09, KEY_MENU }, /* swap */
 	{ 0x0, 0x0a, KEY_REWIND },
 	{ 0x0, 0x1b, KEY_PAUSE },
 	{ 0x0, 0x1f, KEY_FASTFORWARD },
 	{ 0x0, 0x0c, KEY_RECORD },
 	{ 0x0, 0x0d, KEY_CAMERA }, /* screenshot */
 	{ 0x0, 0x0e, KEY_COFFEE }, /* "MTS" */
 };

 static inline int m9206_read(struct usb_device *udev, u8 request, u16 value, u16 index, void *data, int size)
 {
 	int ret;

 	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 			      request, USB_TYPE_VENDOR | USB_DIR_IN,
 			      value, index, data, size, 2000);
 	if (ret < 0)
 		return ret;

 	if (ret != size)
 		return -EIO;

 	return 0;
 }

 static inline int m9206_write(struct usb_device *udev, u8 request, u16 value, u16 index)
 {
 	int ret;

 	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 			      request, USB_TYPE_VENDOR | USB_DIR_OUT,
 			      value, index, NULL, 0, 2000);
 	return ret;
 }

 static int m9206_rc_init(struct usb_device *udev)
 {
 	int ret = 0;

 	/* Remote controller init. */
 	if ((ret = m9206_write(udev, M9206_CORE, 0xa8, M9206_RC_INIT2)) != 0)
 		return ret;

 	if ((ret = m9206_write(udev, M9206_CORE, 0x51, M9206_RC_INIT1)) != 0)
 		return ret;

 	return ret;
 }

 static int m9206_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 {
 	struct m9206_state *m = d->priv;
 	int i, ret = 0;
 	u8 rc_state[2];


 	if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, rc_state, 1)) != 0)
 		goto unlock;

 	if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, rc_state + 1, 1)) != 0)
 		goto unlock;

 	for (i = 0; i < ARRAY_SIZE(megasky_rc_keys); i++)
 		if (megasky_rc_keys[i].data == rc_state[1]) {
 			*event = megasky_rc_keys[i].event;

 			switch(rc_state[0]) {
 			case 0x80:
 				*state = REMOTE_NO_KEY_PRESSED;
 				goto unlock;

 			case 0x93:
 			case 0x92:
 				m->rep_count = 0;
 				*state = REMOTE_KEY_PRESSED;
 				goto unlock;

 			case 0x91:
 				/* For comfort. */
 				if (++m->rep_count > 2)
 					*state = REMOTE_KEY_REPEAT;
 				goto unlock;

 			default:
 				deb_rc("Unexpected rc response %x\n", rc_state[0]);
 				*state = REMOTE_NO_KEY_PRESSED;
 				goto unlock;
 			}
 		}

 	if (rc_state[1] != 0)
 		deb_rc("Unknown rc key %x\n", rc_state[1]);

 	*state = REMOTE_NO_KEY_PRESSED;

 	unlock:

 	return ret;
 }

 /* I2C */
 static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
 {
 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
 	int i;
 	int ret = 0;

 	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 		return -EAGAIN;

 	if (num > 2)
 		return -EINVAL;

 	for (i = 0; i < num; i++) {
 		u8 w_len;

 		if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].addr, 0x80)) != 0)
 			goto unlock;

 		if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[0], 0x0)) != 0)
 			goto unlock;

 		if (i + 1 < num && msg[i + 1].flags & I2C_M_RD) {
 			/* Possibly device dependant */
 			if (msg[i].addr == d->adapter[0].pll_addr)
 				w_len = 0xc5;
 			else
 				w_len = 0x1f;

 			if ((ret = m9206_write(d->udev, M9206_I2C, w_len, 0x80)) != 0)
 				goto unlock;

 			if ((ret = m9206_read(d->udev, M9206_I2C, 0x0, 0x60, msg[i + 1].buf, msg[i + 1].len)) != 0)
 				goto unlock;

 			i++;
 		} else {
 			if (msg[i].len != 2)
 				return -EINVAL;

 			if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[1], 0x40)) != 0)
 				goto unlock;
 		}
 	}
 	ret = i;
 	unlock:
 	mutex_unlock(&d->i2c_mutex);

 	return ret;
 }

 static u32 m9206_i2c_func(struct i2c_adapter *adapter)
 {
 	return I2C_FUNC_I2C;
 }

 static struct i2c_algorithm m9206_i2c_algo = {
 	.master_xfer   = m9206_i2c_xfer,
 	.functionality = m9206_i2c_func,
 };

 /* Callbacks for DVB USB */
 static int megasky_identify_state(struct usb_device *udev,
 				  struct dvb_usb_device_properties *props,
 				  struct dvb_usb_device_description **desc,
 				  int *cold)
 {
 	struct usb_host_interface *alt;

 	alt = usb_altnum_to_altsetting(usb_ifnum_to_if(udev, 0), 1);
 	*cold = (alt == NULL) ? 1 : 0;

 	return 0;
 }

 static int megasky_mt352_demod_init(struct dvb_frontend *fe)
 {
 	u8 config[] = { CONFIG, 0x3d };
 	u8 clock[] = { CLOCK_CTL, 0x30 };
 	u8 reset[] = { RESET, 0x80 };
 	u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
 	u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
 	u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
 	u8 unk1[] = { 0x93, 0x1a };
 	u8 unk2[] = { 0xb5, 0x7a };

 	mt352_write(fe, config, ARRAY_SIZE(config));
 	mt352_write(fe, clock, ARRAY_SIZE(clock));
 	mt352_write(fe, reset, ARRAY_SIZE(reset));
 	mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl));
 	mt352_write(fe, agc, ARRAY_SIZE(agc));
 	mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc));
 	mt352_write(fe, unk1, ARRAY_SIZE(unk1));
 	mt352_write(fe, unk2, ARRAY_SIZE(unk2));

 	deb_rc("Demod init!\n");

 	return 0;
 }

 static struct mt352_config megasky_mt352_config = {
 	.demod_address = 0x1e,
 	.no_tuner = 1,
 	.demod_init = megasky_mt352_demod_init,
 };

 static int megasky_frontend_attach(struct dvb_usb_adapter *adap)
 {
 	deb_rc("megasky_frontend_attach!\n");

 	if ((adap->fe = dvb_attach(mt352_attach, &megasky_mt352_config, &adap->dev->i2c_adap)) != NULL)
 		return 0;
 	return -EIO;
 }

 static int m9206_set_filter(struct dvb_usb_adapter *adap, int type, int idx, int pid)
 {
 	int ret = 0;

 	if (pid >= 0x8000)
 		return -EINVAL;

 	pid |= 0x8000;

 	if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, pid, (type << 8) | (idx * 4) )) != 0)
 		return ret;

 	if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, 0, (type << 8) | (idx * 4) )) != 0)
 		return ret;

 	return ret;
 }

 static int m9206_update_filters(struct dvb_usb_adapter *adap)
 {
 	struct m9206_state *m = adap->dev->priv;
 	int enabled = m->filtering_enabled;
 	int i, ret = 0, filter = 0;

 	for (i = 0; i < M9206_MAX_FILTERS; i++)
 		if (m->filters[i] == 8192)
 			enabled = 0;

 	/* Disable all filters */
 	if ((ret = m9206_set_filter(adap, 0x81, 1, enabled)) != 0)
 		return ret;

 	for (i = 0; i < M9206_MAX_FILTERS; i++)
 		if ((ret = m9206_set_filter(adap, 0x81, i + 2, 0)) != 0)
 			return ret;

 	if ((ret = m9206_set_filter(adap, 0x82, 0, 0x0)) != 0)
 		return ret;

 	/* Set */
 	if (enabled) {
 		for (i = 0; i < M9206_MAX_FILTERS; i++) {
 			if (m->filters[i] == 0)
 				continue;

 			if ((ret = m9206_set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0)
 				return ret;

 			filter++;
 		}
 	}

 	if ((ret = m9206_set_filter(adap, 0x82, 0, 0x02f5)) != 0)
 		return ret;

 	return ret;
 }

 static int m9206_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
 {
 	struct m9206_state *m = adap->dev->priv;

 	m->filtering_enabled = onoff ? 1 : 0;

 	return m9206_update_filters(adap);
 }

 static int m9206_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, int onoff)
 {
 	struct m9206_state *m = adap->dev->priv;

 	m->filters[index] = onoff ? pid : 0;

 	return m9206_update_filters(adap);
 }

 static int m9206_firmware_download(struct usb_device *udev, const struct firmware *fw)
 {
 	u16 value, index, size;
 	u8 read[4], *buff;
 	int i, pass, ret = 0;

 	buff = kmalloc(65536, GFP_KERNEL);

 	if ((ret = m9206_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
 		goto done;
 	deb_rc("%x %x %x %x\n", read[0], read[1], read[2], read[3]);

 	if ((ret = m9206_read(udev, M9206_FW, 0x0, 0x0, read, 1)) != 0)
 		goto done;
 	deb_rc("%x\n", read[0]);

 	for (pass = 0; pass < 2; pass++) {
 		for (i = 0; i + (sizeof(u16) * 3) < fw->size;) {
 			value = le16_to_cpu(*(u16 *)(fw->data + i));
 			i += sizeof(u16);

 			index = le16_to_cpu(*(u16 *)(fw->data + i));
 			i += sizeof(u16);

 			size = le16_to_cpu(*(u16 *)(fw->data + i));
 			i += sizeof(u16);

 			if (pass == 1) {
 				/* Will stall if using fw->data ... */
 				memcpy(buff, fw->data + i, size);

 				ret = usb_control_msg(udev, usb_sndctrlpipe(udev,0),
 					    M9206_FW,
 					    USB_TYPE_VENDOR | USB_DIR_OUT,
 					    value, index, buff, size, 20);
 				if (ret != size) {
 					deb_rc("error while uploading fw!\n");
 					ret = -EIO;
 					goto done;
 				}
 				msleep(3);
 			}
 			i += size;
 		}
 		if (i != fw->size) {
 			ret = -EINVAL;
 			goto done;
 		}
 	}

 	msleep(36);

 	/* m9206 will disconnect itself from the bus after this. */
 	(void) m9206_write(udev, M9206_CORE, 0x01, M9206_FW_GO);
 	deb_rc("firmware uploaded!\n");

 	done:
 	kfree(buff);

 	return ret;
 }

 static struct qt1010_config megasky_qt1010_config = {
 	.i2c_address = 0xc4
 };

 static int megasky_tuner_attach(struct dvb_usb_adapter *adap)
 {
 	return dvb_attach(qt1010_attach,
 			  adap->fe, &adap->dev->i2c_adap,
 			  &megasky_qt1010_config) == NULL ? -ENODEV : 0;
 }

 /* DVB USB Driver stuff */
 static struct dvb_usb_device_properties megasky_properties;

 static int m920x_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
 	struct dvb_usb_device *d;
 	struct usb_host_interface *alt;
 	int ret;

 	if ((ret = dvb_usb_device_init(intf, &megasky_properties, THIS_MODULE, &d)) == 0) {
 		deb_rc("probed!\n");

 		alt = usb_altnum_to_altsetting(intf, 1);
 		if (alt == NULL) {
 			deb_rc("not alt found!\n");
 			return -ENODEV;
 		}

 		ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, alt->desc.bAlternateSetting);
 		if (ret < 0)
 			return ret;

 		deb_rc("Changed to alternate setting!\n");

 		if ((ret = m9206_rc_init(d->udev)) != 0)
 			return ret;
 	}
 	return ret;
 }

 static struct usb_device_id m920x_table [] = {
 		{ USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) },
 		{ }		/* Terminating entry */
 };
 MODULE_DEVICE_TABLE (usb, m920x_table);

 static struct dvb_usb_device_properties megasky_properties = {
 	.caps = DVB_USB_IS_AN_I2C_ADAPTER | DVB_USB_ADAP_HAS_PID_FILTER |
 		DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,

 	.usb_ctrl = DEVICE_SPECIFIC,
 	.firmware = "dvb-usb-megasky-02.fw",
 	.download_firmware = m9206_firmware_download,

 	.rc_interval      = 100,
 	.rc_key_map       = megasky_rc_keys,
 	.rc_key_map_size  = ARRAY_SIZE(megasky_rc_keys),
 	.rc_query         = m9206_rc_query,

 	.size_of_priv     = sizeof(struct m9206_state),

 	.identify_state   = megasky_identify_state,
 	.num_adapters = 1,
 	.adapter = {{
 		.pid_filter_count = 8,
 		.pid_filter       = m9206_pid_filter,
 		.pid_filter_ctrl  = m9206_pid_filter_ctrl,

 		.frontend_attach  = megasky_frontend_attach,
 		.tuner_attach     = megasky_tuner_attach,

 		.stream = {
 			.type = USB_BULK,
 			.count = 8,
 			.endpoint = 0x81,
 			.u = {
 				.bulk = {
 					.buffersize = 512,
 				}
 			}
 		},
 	}},
 	.i2c_algo         = &m9206_i2c_algo,

 	.num_device_descs = 1,
 	.devices = {
 		{   "MSI Mega Sky 580 DVB-T USB2.0",
 			{ &m920x_table[0], NULL },
 			{ NULL },
 		},
 	}
 };

 static struct usb_driver m920x_driver = {
 	.name		= "dvb_usb_m920x",
 	.probe		= m920x_probe,
 	.disconnect	= dvb_usb_device_exit,
 	.id_table	= m920x_table,
 };

 /* module stuff */
 static int __init m920x_module_init(void)
 {
 	int ret;

 	if ((ret = usb_register(&m920x_driver))) {
 		err("usb_register failed. Error number %d", ret);
 		return ret;
 	}

 	return 0;
 }

 static void __exit m920x_module_exit(void)
 {
 	/* deregister this driver from the USB subsystem */
 	usb_deregister(&m920x_driver);
 }

 module_init (m920x_module_init);
 module_exit (m920x_module_exit);

 MODULE_AUTHOR("Aapo Tahkola <aet@rasterburn.org>");
 MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / Uli m920x");
 MODULE_VERSION("0.1");
 MODULE_LICENSE("GPL");
	/* DVB USB compliant linux driver for MSI Mega Sky 580 DVB-T USB2.0 receiver
	*
	* Copyright (C) 2006 Aapo Tahkola (aet@rasterburn.org)
	*
	* 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 "m920x.h"

	#include "mt352.h"
	#include "mt352_priv.h"
	#include "qt1010.h"

	/* debug */
	static int dvb_usb_m920x_debug;
	module_param_named(debug,dvb_usb_m920x_debug, int, 0644);
	MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);

	static struct dvb_usb_rc_key megasky_rc_keys [] = {
	{ 0x0, 0x12, KEY_POWER },
	{ 0x0, 0x1e, KEY_CYCLEWINDOWS }, /* min/max */
	{ 0x0, 0x02, KEY_CHANNELUP },
	{ 0x0, 0x05, KEY_CHANNELDOWN },
	{ 0x0, 0x03, KEY_VOLUMEUP },
	{ 0x0, 0x06, KEY_VOLUMEDOWN },
	{ 0x0, 0x04, KEY_MUTE },
	{ 0x0, 0x07, KEY_OK }, /* TS */
	{ 0x0, 0x08, KEY_STOP },
	{ 0x0, 0x09, KEY_MENU }, /* swap */
	{ 0x0, 0x0a, KEY_REWIND },
	{ 0x0, 0x1b, KEY_PAUSE },
	{ 0x0, 0x1f, KEY_FASTFORWARD },
	{ 0x0, 0x0c, KEY_RECORD },
	{ 0x0, 0x0d, KEY_CAMERA }, /* screenshot */
	{ 0x0, 0x0e, KEY_COFFEE }, /* "MTS" */
	};

	static inline int m9206_read(struct usb_device udev, u8 request, u16 value, u16 index, void data, int size)
	{
	int ret;

	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
	request, USB_TYPE_VENDOR \| USB_DIR_IN,
	value, index, data, size, 2000);
	if (ret < 0)
	return ret;

	if (ret != size)
	return -EIO;

	return 0;
	}

	static inline int m9206_write(struct usb_device *udev, u8 request, u16 value, u16 index)
	{
	int ret;

	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
	request, USB_TYPE_VENDOR \| USB_DIR_OUT,
	value, index, NULL, 0, 2000);
	return ret;
	}

	static int m9206_rc_init(struct usb_device *udev)
	{
	int ret = 0;

	/* Remote controller init. */
	if ((ret = m9206_write(udev, M9206_CORE, 0xa8, M9206_RC_INIT2)) != 0)
	return ret;

	if ((ret = m9206_write(udev, M9206_CORE, 0x51, M9206_RC_INIT1)) != 0)
	return ret;

	return ret;
	}

	static int m9206_rc_query(struct dvb_usb_device d, u32 event, int *state)
	{
	struct m9206_state *m = d->priv;
	int i, ret = 0;
	u8 rc_state[2];


	if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, rc_state, 1)) != 0)
	goto unlock;

	if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, rc_state + 1, 1)) != 0)
	goto unlock;

	for (i = 0; i < ARRAY_SIZE(megasky_rc_keys); i++)
	if (megasky_rc_keys[i].data == rc_state[1]) {
	*event = megasky_rc_keys[i].event;

	switch(rc_state[0]) {
	case 0x80:
	*state = REMOTE_NO_KEY_PRESSED;
	goto unlock;

	case 0x93:
	case 0x92:
	m->rep_count = 0;
	*state = REMOTE_KEY_PRESSED;
	goto unlock;

	case 0x91:
	/* For comfort. */
	if (++m->rep_count > 2)
	*state = REMOTE_KEY_REPEAT;
	goto unlock;

	default:
	deb_rc("Unexpected rc response %x\n", rc_state[0]);
	*state = REMOTE_NO_KEY_PRESSED;
	goto unlock;
	}
	}

	if (rc_state[1] != 0)
	deb_rc("Unknown rc key %x\n", rc_state[1]);

	*state = REMOTE_NO_KEY_PRESSED;

	unlock:

	return ret;
	}

	/* I2C */
	static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
	{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int i;
	int ret = 0;

	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
	return -EAGAIN;

	if (num > 2)
	return -EINVAL;

	for (i = 0; i < num; i++) {
	u8 w_len;

	if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].addr, 0x80)) != 0)
	goto unlock;

	if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[0], 0x0)) != 0)
	goto unlock;

	if (i + 1 < num && msg[i + 1].flags & I2C_M_RD) {
	/* Possibly device dependant */
	if (msg[i].addr == d->adapter[0].pll_addr)
	w_len = 0xc5;
	else
	w_len = 0x1f;

	if ((ret = m9206_write(d->udev, M9206_I2C, w_len, 0x80)) != 0)
	goto unlock;

	if ((ret = m9206_read(d->udev, M9206_I2C, 0x0, 0x60, msg[i + 1].buf, msg[i + 1].len)) != 0)
	goto unlock;

	i++;
	} else {
	if (msg[i].len != 2)
	return -EINVAL;

	if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[1], 0x40)) != 0)
	goto unlock;
	}
	}
	ret = i;
	unlock:
	mutex_unlock(&d->i2c_mutex);

	return ret;
	}

	static u32 m9206_i2c_func(struct i2c_adapter *adapter)
	{
	return I2C_FUNC_I2C;
	}

	static struct i2c_algorithm m9206_i2c_algo = {
	.master_xfer = m9206_i2c_xfer,
	.functionality = m9206_i2c_func,
	};

	/* Callbacks for DVB USB */
	static int megasky_identify_state(struct usb_device *udev,
	struct dvb_usb_device_properties *props,
	struct dvb_usb_device_description **desc,
	int *cold)
	{
	struct usb_host_interface *alt;

	alt = usb_altnum_to_altsetting(usb_ifnum_to_if(udev, 0), 1);
	*cold = (alt == NULL) ? 1 : 0;

	return 0;
	}

	static int megasky_mt352_demod_init(struct dvb_frontend *fe)
	{
	u8 config[] = { CONFIG, 0x3d };
	u8 clock[] = { CLOCK_CTL, 0x30 };
	u8 reset[] = { RESET, 0x80 };
	u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
	u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
	u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
	u8 unk1[] = { 0x93, 0x1a };
	u8 unk2[] = { 0xb5, 0x7a };

	mt352_write(fe, config, ARRAY_SIZE(config));
	mt352_write(fe, clock, ARRAY_SIZE(clock));
	mt352_write(fe, reset, ARRAY_SIZE(reset));
	mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl));
	mt352_write(fe, agc, ARRAY_SIZE(agc));
	mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc));
	mt352_write(fe, unk1, ARRAY_SIZE(unk1));
	mt352_write(fe, unk2, ARRAY_SIZE(unk2));

	deb_rc("Demod init!\n");

	return 0;
	}

	static struct mt352_config megasky_mt352_config = {
	.demod_address = 0x1e,
	.no_tuner = 1,
	.demod_init = megasky_mt352_demod_init,
	};

	static int megasky_frontend_attach(struct dvb_usb_adapter *adap)
	{
	deb_rc("megasky_frontend_attach!\n");

	if ((adap->fe = dvb_attach(mt352_attach, &megasky_mt352_config, &adap->dev->i2c_adap)) != NULL)
	return 0;
	return -EIO;
	}

	static int m9206_set_filter(struct dvb_usb_adapter *adap, int type, int idx, int pid)
	{
	int ret = 0;

	if (pid >= 0x8000)
	return -EINVAL;

	pid \|= 0x8000;

	if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, pid, (type << 8) \| (idx * 4) )) != 0)
	return ret;

	if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, 0, (type << 8) \| (idx * 4) )) != 0)
	return ret;

	return ret;
	}

	static int m9206_update_filters(struct dvb_usb_adapter *adap)
	{
	struct m9206_state *m = adap->dev->priv;
	int enabled = m->filtering_enabled;
	int i, ret = 0, filter = 0;

	for (i = 0; i < M9206_MAX_FILTERS; i++)
	if (m->filters[i] == 8192)
	enabled = 0;

	/* Disable all filters */
	if ((ret = m9206_set_filter(adap, 0x81, 1, enabled)) != 0)
	return ret;

	for (i = 0; i < M9206_MAX_FILTERS; i++)
	if ((ret = m9206_set_filter(adap, 0x81, i + 2, 0)) != 0)
	return ret;

	if ((ret = m9206_set_filter(adap, 0x82, 0, 0x0)) != 0)
	return ret;

	/* Set */
	if (enabled) {
	for (i = 0; i < M9206_MAX_FILTERS; i++) {
	if (m->filters[i] == 0)
	continue;

	if ((ret = m9206_set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0)
	return ret;

	filter++;
	}
	}

	if ((ret = m9206_set_filter(adap, 0x82, 0, 0x02f5)) != 0)
	return ret;

	return ret;
	}

	static int m9206_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
	{
	struct m9206_state *m = adap->dev->priv;

	m->filtering_enabled = onoff ? 1 : 0;

	return m9206_update_filters(adap);
	}

	static int m9206_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, int onoff)
	{
	struct m9206_state *m = adap->dev->priv;

	m->filters[index] = onoff ? pid : 0;

	return m9206_update_filters(adap);
	}

	static int m9206_firmware_download(struct usb_device udev, const struct firmware fw)
	{
	u16 value, index, size;
	u8 read[4], *buff;
	int i, pass, ret = 0;

	buff = kmalloc(65536, GFP_KERNEL);

	if ((ret = m9206_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
	goto done;
	deb_rc("%x %x %x %x\n", read[0], read[1], read[2], read[3]);

	if ((ret = m9206_read(udev, M9206_FW, 0x0, 0x0, read, 1)) != 0)
	goto done;
	deb_rc("%x\n", read[0]);

	for (pass = 0; pass < 2; pass++) {
	for (i = 0; i + (sizeof(u16) * 3) < fw->size;) {
	value = le16_to_cpu((u16 )(fw->data + i));
	i += sizeof(u16);

	index = le16_to_cpu((u16 )(fw->data + i));
	i += sizeof(u16);

	size = le16_to_cpu((u16 )(fw->data + i));
	i += sizeof(u16);

	if (pass == 1) {
	/* Will stall if using fw->data ... */
	memcpy(buff, fw->data + i, size);

	ret = usb_control_msg(udev, usb_sndctrlpipe(udev,0),
	M9206_FW,
	USB_TYPE_VENDOR \| USB_DIR_OUT,
	value, index, buff, size, 20);
	if (ret != size) {
	deb_rc("error while uploading fw!\n");
	ret = -EIO;
	goto done;
	}
	msleep(3);
	}
	i += size;
	}
	if (i != fw->size) {
	ret = -EINVAL;
	goto done;
	}
	}

	msleep(36);

	/* m9206 will disconnect itself from the bus after this. */
	(void) m9206_write(udev, M9206_CORE, 0x01, M9206_FW_GO);
	deb_rc("firmware uploaded!\n");

	done:
	kfree(buff);

	return ret;
	}

	static struct qt1010_config megasky_qt1010_config = {
	.i2c_address = 0xc4
	};

	static int megasky_tuner_attach(struct dvb_usb_adapter *adap)
	{
	return dvb_attach(qt1010_attach,
	adap->fe, &adap->dev->i2c_adap,
	&megasky_qt1010_config) == NULL ? -ENODEV : 0;
	}

	/* DVB USB Driver stuff */
	static struct dvb_usb_device_properties megasky_properties;

	static int m920x_probe(struct usb_interface intf, const struct usb_device_id id)
	{
	struct dvb_usb_device *d;
	struct usb_host_interface *alt;
	int ret;

	if ((ret = dvb_usb_device_init(intf, &megasky_properties, THIS_MODULE, &d)) == 0) {
	deb_rc("probed!\n");

	alt = usb_altnum_to_altsetting(intf, 1);
	if (alt == NULL) {
	deb_rc("not alt found!\n");
	return -ENODEV;
	}

	ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, alt->desc.bAlternateSetting);
	if (ret < 0)
	return ret;

	deb_rc("Changed to alternate setting!\n");

	if ((ret = m9206_rc_init(d->udev)) != 0)
	return ret;
	}
	return ret;
	}

	static struct usb_device_id m920x_table [] = {
	{ USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) },
	{ } /* Terminating entry */
	};
	MODULE_DEVICE_TABLE (usb, m920x_table);

	static struct dvb_usb_device_properties megasky_properties = {
	.caps = DVB_USB_IS_AN_I2C_ADAPTER \| DVB_USB_ADAP_HAS_PID_FILTER \|
	DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,

	.usb_ctrl = DEVICE_SPECIFIC,
	.firmware = "dvb-usb-megasky-02.fw",
	.download_firmware = m9206_firmware_download,

	.rc_interval = 100,
	.rc_key_map = megasky_rc_keys,
	.rc_key_map_size = ARRAY_SIZE(megasky_rc_keys),
	.rc_query = m9206_rc_query,

	.size_of_priv = sizeof(struct m9206_state),

	.identify_state = megasky_identify_state,
	.num_adapters = 1,
	.adapter = {{
	.pid_filter_count = 8,
	.pid_filter = m9206_pid_filter,
	.pid_filter_ctrl = m9206_pid_filter_ctrl,

	.frontend_attach = megasky_frontend_attach,
	.tuner_attach = megasky_tuner_attach,

	.stream = {
	.type = USB_BULK,
	.count = 8,
	.endpoint = 0x81,
	.u = {
	.bulk = {
	.buffersize = 512,
	}
	}
	},
	}},
	.i2c_algo = &m9206_i2c_algo,

	.num_device_descs = 1,
	.devices = {
	{ "MSI Mega Sky 580 DVB-T USB2.0",
	{ &m920x_table[0], NULL },
	{ NULL },
	},
	}
	};

	static struct usb_driver m920x_driver = {
	.name = "dvb_usb_m920x",
	.probe = m920x_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table = m920x_table,
	};

	/* module stuff */
	static int __init m920x_module_init(void)
	{
	int ret;

	if ((ret = usb_register(&m920x_driver))) {
	err("usb_register failed. Error number %d", ret);
	return ret;
	}

	return 0;
	}

	static void __exit m920x_module_exit(void)
	{
	/* deregister this driver from the USB subsystem */
	usb_deregister(&m920x_driver);
	}

	module_init (m920x_module_init);
	module_exit (m920x_module_exit);

	MODULE_AUTHOR("Aapo Tahkola <aet@rasterburn.org>");
	MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / Uli m920x");
	MODULE_VERSION("0.1");
	MODULE_LICENSE("GPL");