drivers/media/dvb/dvb-usb/opera1.c - kernel/msm-4.9 - Gitiles

 /* DVB USB framework compliant Linux driver for the Opera1 DVB-S Card
 *
 * Copyright (C) 2006 Mario Hlawitschka (dh1pa@amsat.org)
 * Copyright (C) 2006 Marco Gittler (g.marco@freenet.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
 */

 #define DVB_USB_LOG_PREFIX "opera"

 #include "dvb-usb.h"
 #include "stv0299.h"

 #define OPERA_READ_MSG 0
 #define OPERA_WRITE_MSG 1
 #define OPERA_I2C_TUNER 0xd1

 #define READ_FX2_REG_REQ  0xba
 #define READ_MAC_ADDR 0x08
 #define OPERA_WRITE_FX2 0xbb
 #define OPERA_TUNER_REQ 0xb1
 #define REG_1F_SYMBOLRATE_BYTE0 0x1f
 #define REG_20_SYMBOLRATE_BYTE1 0x20
 #define REG_21_SYMBOLRATE_BYTE2 0x21

 #define ADDR_B600_VOLTAGE_13V (0x02)
 #define ADDR_B601_VOLTAGE_18V (0x03)
 #define ADDR_B1A6_STREAM_CTRL (0x04)
 #define ADDR_B880_READ_REMOTE (0x05)

 struct opera1_state {
 	u32 last_key_pressed;
 };
 struct rc_map_opera_table {
 	u32 keycode;
 	u32 event;
 };

 static int dvb_usb_opera1_debug;
 module_param_named(debug, dvb_usb_opera1_debug, int, 0644);
 MODULE_PARM_DESC(debug,
 		 "set debugging level (1=info,xfer=2,pll=4,ts=8,err=16,rc=32,fw=64 (or-able))."
 		 DVB_USB_DEBUG_STATUS);

 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);


 static int opera1_xilinx_rw(struct usb_device *dev, u8 request, u16 value,
 			    u8 * data, u16 len, int flags)
 {
 	int ret;
 	u8 tmp;
 	u8 *buf;
 	unsigned int pipe = (flags == OPERA_READ_MSG) ?
 		usb_rcvctrlpipe(dev,0) : usb_sndctrlpipe(dev, 0);
 	u8 request_type = (flags == OPERA_READ_MSG) ? USB_DIR_IN : USB_DIR_OUT;

 	buf = kmalloc(len, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;

 	if (flags == OPERA_WRITE_MSG)
 		memcpy(buf, data, len);
 	ret = usb_control_msg(dev, pipe, request,
 			request_type | USB_TYPE_VENDOR, value, 0x0,
 			buf, len, 2000);

 	if (request == OPERA_TUNER_REQ) {
 		tmp = buf[0];
 		if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 			    OPERA_TUNER_REQ, USB_DIR_IN | USB_TYPE_VENDOR,
 			    0x01, 0x0, buf, 1, 2000) < 1 || buf[0] != 0x08) {
 			ret = 0;
 			goto out;
 		}
 		buf[0] = tmp;
 	}
 	if (flags == OPERA_READ_MSG)
 		memcpy(data, buf, len);
 out:
 	kfree(buf);
 	return ret;
 }

 /* I2C */

 static int opera1_usb_i2c_msgxfer(struct dvb_usb_device *dev, u16 addr,
 				  u8 * buf, u16 len)
 {
 	int ret = 0;
 	u8 request;
 	u16 value;

 	if (!dev) {
 		info("no usb_device");
 		return -EINVAL;
 	}
 	if (mutex_lock_interruptible(&dev->usb_mutex) < 0)
 		return -EAGAIN;

 	switch (addr>>1){
 		case ADDR_B600_VOLTAGE_13V:
 			request=0xb6;
 			value=0x00;
 			break;
 		case ADDR_B601_VOLTAGE_18V:
 			request=0xb6;
 			value=0x01;
 			break;
 		case ADDR_B1A6_STREAM_CTRL:
 			request=0xb1;
 			value=0xa6;
 			break;
 		case ADDR_B880_READ_REMOTE:
 			request=0xb8;
 			value=0x80;
 			break;
 		default:
 			request=0xb1;
 			value=addr;
 	}
 	ret = opera1_xilinx_rw(dev->udev, request,
 		value, buf, len,
 		addr&0x01?OPERA_READ_MSG:OPERA_WRITE_MSG);

 	mutex_unlock(&dev->usb_mutex);
 	return ret;
 }

 static int opera1_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 			   int num)
 {
 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
 	int i = 0, tmp = 0;

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

 	for (i = 0; i < num; i++) {
 		if ((tmp = opera1_usb_i2c_msgxfer(d,
 					(msg[i].addr<<1)|(msg[i].flags&I2C_M_RD?0x01:0),
 					msg[i].buf,
 					msg[i].len
 					)) != msg[i].len) {
 			break;
 		}
 		if (dvb_usb_opera1_debug & 0x10)
 			info("sending i2c mesage %d %d", tmp, msg[i].len);
 	}
 	mutex_unlock(&d->i2c_mutex);
 	return num;
 }

 static u32 opera1_i2c_func(struct i2c_adapter *adapter)
 {
 	return I2C_FUNC_I2C;
 }

 static struct i2c_algorithm opera1_i2c_algo = {
 	.master_xfer = opera1_i2c_xfer,
 	.functionality = opera1_i2c_func,
 };

 static int opera1_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
 {
 	static u8 command_13v[1]={0x00};
 	static u8 command_18v[1]={0x01};
 	struct i2c_msg msg[] = {
 		{.addr = ADDR_B600_VOLTAGE_13V,.flags = 0,.buf = command_13v,.len = 1},
 	};
 	struct dvb_usb_adapter *udev_adap =
 	    (struct dvb_usb_adapter *)(fe->dvb->priv);
 	if (voltage == SEC_VOLTAGE_18) {
 		msg[0].addr = ADDR_B601_VOLTAGE_18V;
 		msg[0].buf = command_18v;
 	}
 	i2c_transfer(&udev_adap->dev->i2c_adap, msg, 1);
 	return 0;
 }

 static int opera1_stv0299_set_symbol_rate(struct dvb_frontend *fe, u32 srate,
 					  u32 ratio)
 {
 	stv0299_writereg(fe, 0x13, 0x98);
 	stv0299_writereg(fe, 0x14, 0x95);
 	stv0299_writereg(fe, REG_1F_SYMBOLRATE_BYTE0, (ratio >> 16) & 0xff);
 	stv0299_writereg(fe, REG_20_SYMBOLRATE_BYTE1, (ratio >> 8) & 0xff);
 	stv0299_writereg(fe, REG_21_SYMBOLRATE_BYTE2, (ratio) & 0xf0);
 	return 0;

 }
 static u8 opera1_inittab[] = {
 	0x00, 0xa1,
 	0x01, 0x15,
 	0x02, 0x30,
 	0x03, 0x00,
 	0x04, 0x7d,
 	0x05, 0x05,
 	0x06, 0x02,
 	0x07, 0x00,
 	0x0b, 0x00,
 	0x0c, 0x01,
 	0x0d, 0x81,
 	0x0e, 0x44,
 	0x0f, 0x19,
 	0x10, 0x3f,
 	0x11, 0x84,
 	0x12, 0xda,
 	0x13, 0x98,
 	0x14, 0x95,
 	0x15, 0xc9,
 	0x16, 0xeb,
 	0x17, 0x00,
 	0x18, 0x19,
 	0x19, 0x8b,
 	0x1a, 0x00,
 	0x1b, 0x82,
 	0x1c, 0x7f,
 	0x1d, 0x00,
 	0x1e, 0x00,
 	REG_1F_SYMBOLRATE_BYTE0, 0x06,
 	REG_20_SYMBOLRATE_BYTE1, 0x50,
 	REG_21_SYMBOLRATE_BYTE2, 0x10,
 	0x22, 0x00,
 	0x23, 0x00,
 	0x24, 0x37,
 	0x25, 0xbc,
 	0x26, 0x00,
 	0x27, 0x00,
 	0x28, 0x00,
 	0x29, 0x1e,
 	0x2a, 0x14,
 	0x2b, 0x1f,
 	0x2c, 0x09,
 	0x2d, 0x0a,
 	0x2e, 0x00,
 	0x2f, 0x00,
 	0x30, 0x00,
 	0x31, 0x1f,
 	0x32, 0x19,
 	0x33, 0xfc,
 	0x34, 0x13,
 	0xff, 0xff,
 };

 static struct stv0299_config opera1_stv0299_config = {
 	.demod_address = 0xd0>>1,
 	.min_delay_ms = 100,
 	.mclk = 88000000UL,
 	.invert = 1,
 	.skip_reinit = 0,
 	.lock_output = STV0299_LOCKOUTPUT_0,
 	.volt13_op0_op1 = STV0299_VOLT13_OP0,
 	.inittab = opera1_inittab,
 	.set_symbol_rate = opera1_stv0299_set_symbol_rate,
 };

 static int opera1_frontend_attach(struct dvb_usb_adapter *d)
 {
 	d->fe_adap[0].fe = dvb_attach(stv0299_attach, &opera1_stv0299_config,
 				      &d->dev->i2c_adap);
 	if ((d->fe_adap[0].fe) != NULL) {
 		d->fe_adap[0].fe->ops.set_voltage = opera1_set_voltage;
 		return 0;
 	}
 	info("not attached stv0299");
 	return -EIO;
 }

 static int opera1_tuner_attach(struct dvb_usb_adapter *adap)
 {
 	dvb_attach(
 		dvb_pll_attach, adap->fe_adap[0].fe, 0xc0>>1,
 		&adap->dev->i2c_adap, DVB_PLL_OPERA1
 	);
 	return 0;
 }

 static int opera1_power_ctrl(struct dvb_usb_device *d, int onoff)
 {
 	u8 val = onoff ? 0x01 : 0x00;

 	if (dvb_usb_opera1_debug)
 		info("power %s", onoff ? "on" : "off");
 	return opera1_xilinx_rw(d->udev, 0xb7, val,
 				&val, 1, OPERA_WRITE_MSG);
 }

 static int opera1_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 {
 	static u8 buf_start[2] = { 0xff, 0x03 };
 	static u8 buf_stop[2] = { 0xff, 0x00 };
 	struct i2c_msg start_tuner[] = {
 		{.addr = ADDR_B1A6_STREAM_CTRL,.buf = onoff ? buf_start : buf_stop,.len = 2},
 	};
 	if (dvb_usb_opera1_debug)
 		info("streaming %s", onoff ? "on" : "off");
 	i2c_transfer(&adap->dev->i2c_adap, start_tuner, 1);
 	return 0;
 }

 static int opera1_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
 			     int onoff)
 {
 	u8 b_pid[3];
 	struct i2c_msg msg[] = {
 		{.addr = ADDR_B1A6_STREAM_CTRL,.buf = b_pid,.len = 3},
 	};
 	if (dvb_usb_opera1_debug)
 		info("pidfilter index: %d pid: %d %s", index, pid,
 			onoff ? "on" : "off");
 	b_pid[0] = (2 * index) + 4;
 	b_pid[1] = onoff ? (pid & 0xff) : (0x00);
 	b_pid[2] = onoff ? ((pid >> 8) & 0xff) : (0x00);
 	i2c_transfer(&adap->dev->i2c_adap, msg, 1);
 	return 0;
 }

 static int opera1_pid_filter_control(struct dvb_usb_adapter *adap, int onoff)
 {
 	int u = 0x04;
 	u8 b_pid[3];
 	struct i2c_msg msg[] = {
 		{.addr = ADDR_B1A6_STREAM_CTRL,.buf = b_pid,.len = 3},
 	};
 	if (dvb_usb_opera1_debug)
 		info("%s hw-pidfilter", onoff ? "enable" : "disable");
 	for (; u < 0x7e; u += 2) {
 		b_pid[0] = u;
 		b_pid[1] = 0;
 		b_pid[2] = 0x80;
 		i2c_transfer(&adap->dev->i2c_adap, msg, 1);
 	}
 	return 0;
 }

 static struct rc_map_table rc_map_opera1_table[] = {
 	{0x5fa0, KEY_1},
 	{0x51af, KEY_2},
 	{0x5da2, KEY_3},
 	{0x41be, KEY_4},
 	{0x0bf5, KEY_5},
 	{0x43bd, KEY_6},
 	{0x47b8, KEY_7},
 	{0x49b6, KEY_8},
 	{0x05fa, KEY_9},
 	{0x45ba, KEY_0},
 	{0x09f6, KEY_CHANNELUP},	/*chanup */
 	{0x1be5, KEY_CHANNELDOWN},	/*chandown */
 	{0x5da3, KEY_VOLUMEDOWN},	/*voldown */
 	{0x5fa1, KEY_VOLUMEUP},		/*volup */
 	{0x07f8, KEY_SPACE},		/*tab */
 	{0x1fe1, KEY_OK},		/*play ok */
 	{0x1be4, KEY_ZOOM},		/*zoom */
 	{0x59a6, KEY_MUTE},		/*mute */
 	{0x5ba5, KEY_RADIO},		/*tv/f */
 	{0x19e7, KEY_RECORD},		/*rec */
 	{0x01fe, KEY_STOP},		/*Stop */
 	{0x03fd, KEY_PAUSE},		/*pause */
 	{0x03fc, KEY_SCREEN},		/*<- -> */
 	{0x07f9, KEY_CAMERA},		/*capture */
 	{0x47b9, KEY_ESC},		/*exit */
 	{0x43bc, KEY_POWER2},		/*power */
 };

 static int opera1_rc_query(struct dvb_usb_device *dev, u32 * event, int *state)
 {
 	struct opera1_state *opst = dev->priv;
 	u8 rcbuffer[32];
 	const u16 startmarker1 = 0x10ed;
 	const u16 startmarker2 = 0x11ec;
 	struct i2c_msg read_remote[] = {
 		{.addr = ADDR_B880_READ_REMOTE,.buf = rcbuffer,.flags = I2C_M_RD,.len = 32},
 	};
 	int i = 0;
 	u32 send_key = 0;

 	if (i2c_transfer(&dev->i2c_adap, read_remote, 1) == 1) {
 		for (i = 0; i < 32; i++) {
 			if (rcbuffer[i])
 				send_key |= 1;
 			if (i < 31)
 				send_key = send_key << 1;
 		}
 		if (send_key & 0x8000)
 			send_key = (send_key << 1) | (send_key >> 15 & 0x01);

 		if (send_key == 0xffff && opst->last_key_pressed != 0) {
 			*state = REMOTE_KEY_REPEAT;
 			*event = opst->last_key_pressed;
 			return 0;
 		}
 		for (; send_key != 0;) {
 			if (send_key >> 16 == startmarker2) {
 				break;
 			} else if (send_key >> 16 == startmarker1) {
 				send_key =
 					(send_key & 0xfffeffff) | (startmarker1 << 16);
 				break;
 			} else
 				send_key >>= 1;
 		}

 		if (send_key == 0)
 			return 0;

 		send_key = (send_key & 0xffff) | 0x0100;

 		for (i = 0; i < ARRAY_SIZE(rc_map_opera1_table); i++) {
 			if (rc5_scan(&rc_map_opera1_table[i]) == (send_key & 0xffff)) {
 				*state = REMOTE_KEY_PRESSED;
 				*event = rc_map_opera1_table[i].keycode;
 				opst->last_key_pressed =
 					rc_map_opera1_table[i].keycode;
 				break;
 			}
 			opst->last_key_pressed = 0;
 		}
 	} else
 		*state = REMOTE_NO_KEY_PRESSED;
 	return 0;
 }

 static struct usb_device_id opera1_table[] = {
 	{USB_DEVICE(USB_VID_CYPRESS, USB_PID_OPERA1_COLD)},
 	{USB_DEVICE(USB_VID_OPERA1, USB_PID_OPERA1_WARM)},
 	{}
 };

 MODULE_DEVICE_TABLE(usb, opera1_table);

 static int opera1_read_mac_address(struct dvb_usb_device *d, u8 mac[6])
 {
 	u8 command[] = { READ_MAC_ADDR };
 	opera1_xilinx_rw(d->udev, 0xb1, 0xa0, command, 1, OPERA_WRITE_MSG);
 	opera1_xilinx_rw(d->udev, 0xb1, 0xa1, mac, 6, OPERA_READ_MSG);
 	return 0;
 }
 static int opera1_xilinx_load_firmware(struct usb_device *dev,
 				       const char *filename)
 {
 	const struct firmware *fw = NULL;
 	u8 *b, *p;
 	int ret = 0, i,fpgasize=40;
 	u8 testval;
 	info("start downloading fpga firmware %s",filename);

 	if ((ret = request_firmware(&fw, filename, &dev->dev)) != 0) {
 		err("did not find the firmware file. (%s) "
 			"Please see linux/Documentation/dvb/ for more details on firmware-problems.",
 			filename);
 		return ret;
 	} else {
 		p = kmalloc(fw->size, GFP_KERNEL);
 		opera1_xilinx_rw(dev, 0xbc, 0x00, &testval, 1, OPERA_READ_MSG);
 		if (p != NULL && testval != 0x67) {

 			u8 reset = 0, fpga_command = 0;
 			memcpy(p, fw->data, fw->size);
 			/* clear fpga ? */
 			opera1_xilinx_rw(dev, 0xbc, 0xaa, &fpga_command, 1,
 					 OPERA_WRITE_MSG);
 			for (i = 0; i < fw->size;) {
 				if ( (fw->size - i) <fpgasize){
 				    fpgasize=fw->size-i;
 				}
 				b = (u8 *) p + i;
 				if (opera1_xilinx_rw
 					(dev, OPERA_WRITE_FX2, 0x0, b , fpgasize,
 						OPERA_WRITE_MSG) != fpgasize
 					) {
 					err("error while transferring firmware");
 					ret = -EINVAL;
 					break;
 				}
 				i = i + fpgasize;
 			}
 			/* restart the CPU */
 			if (ret || opera1_xilinx_rw
 					(dev, 0xa0, 0xe600, &reset, 1,
 					OPERA_WRITE_MSG) != 1) {
 				err("could not restart the USB controller CPU.");
 				ret = -EINVAL;
 			}
 		}
 	}
 	kfree(p);
 	release_firmware(fw);
 	return ret;
 }

 static struct dvb_usb_device_properties opera1_properties = {
 	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
 	.usb_ctrl = CYPRESS_FX2,
 	.firmware = "dvb-usb-opera-01.fw",
 	.size_of_priv = sizeof(struct opera1_state),

 	.power_ctrl = opera1_power_ctrl,
 	.i2c_algo = &opera1_i2c_algo,

 	.rc.legacy = {
 		.rc_map_table = rc_map_opera1_table,
 		.rc_map_size = ARRAY_SIZE(rc_map_opera1_table),
 		.rc_interval = 200,
 		.rc_query = opera1_rc_query,
 	},
 	.read_mac_address = opera1_read_mac_address,
 	.generic_bulk_ctrl_endpoint = 0x00,
 	/* parameter for the MPEG2-data transfer */
 	.num_adapters = 1,
 	.adapter = {
 		{
 		.num_frontends = 1,
 		.fe = {{
 			.frontend_attach = opera1_frontend_attach,
 			.streaming_ctrl = opera1_streaming_ctrl,
 			.tuner_attach = opera1_tuner_attach,
 			.caps =
 				DVB_USB_ADAP_HAS_PID_FILTER |
 				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
 			.pid_filter = opera1_pid_filter,
 			.pid_filter_ctrl = opera1_pid_filter_control,
 			.pid_filter_count = 252,
 			.stream = {
 				.type = USB_BULK,
 				.count = 10,
 				.endpoint = 0x82,
 				.u = {
 					.bulk = {
 						.buffersize = 4096,
 					}
 				}
 			},
 		}},
 		}
 	},
 	.num_device_descs = 1,
 	.devices = {
 		{"Opera1 DVB-S USB2.0",
 			{&opera1_table[0], NULL},
 			{&opera1_table[1], NULL},
 		},
 	}
 };

 static int opera1_probe(struct usb_interface *intf,
 			const struct usb_device_id *id)
 {
 	struct usb_device *udev = interface_to_usbdev(intf);

 	if (udev->descriptor.idProduct == USB_PID_OPERA1_WARM &&
 		udev->descriptor.idVendor == USB_VID_OPERA1 &&
 		opera1_xilinx_load_firmware(udev, "dvb-usb-opera1-fpga-01.fw") != 0
 	    ) {
 		return -EINVAL;
 	}

 	if (0 != dvb_usb_device_init(intf, &opera1_properties,
 				     THIS_MODULE, NULL, adapter_nr))
 		return -EINVAL;
 	return 0;
 }

 static struct usb_driver opera1_driver = {
 	.name = "opera1",
 	.probe = opera1_probe,
 	.disconnect = dvb_usb_device_exit,
 	.id_table = opera1_table,
 };

 module_usb_driver(opera1_driver);

 MODULE_AUTHOR("Mario Hlawitschka (c) dh1pa@amsat.org");
 MODULE_AUTHOR("Marco Gittler (c) g.marco@freenet.de");
 MODULE_DESCRIPTION("Driver for Opera1 DVB-S device");
 MODULE_VERSION("0.1");
 MODULE_LICENSE("GPL");
	/* DVB USB framework compliant Linux driver for the Opera1 DVB-S Card
	*
	* Copyright (C) 2006 Mario Hlawitschka (dh1pa@amsat.org)
	* Copyright (C) 2006 Marco Gittler (g.marco@freenet.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
	*/

	#define DVB_USB_LOG_PREFIX "opera"

	#include "dvb-usb.h"
	#include "stv0299.h"

	#define OPERA_READ_MSG 0
	#define OPERA_WRITE_MSG 1
	#define OPERA_I2C_TUNER 0xd1

	#define READ_FX2_REG_REQ 0xba
	#define READ_MAC_ADDR 0x08
	#define OPERA_WRITE_FX2 0xbb
	#define OPERA_TUNER_REQ 0xb1
	#define REG_1F_SYMBOLRATE_BYTE0 0x1f
	#define REG_20_SYMBOLRATE_BYTE1 0x20
	#define REG_21_SYMBOLRATE_BYTE2 0x21

	#define ADDR_B600_VOLTAGE_13V (0x02)
	#define ADDR_B601_VOLTAGE_18V (0x03)
	#define ADDR_B1A6_STREAM_CTRL (0x04)
	#define ADDR_B880_READ_REMOTE (0x05)

	struct opera1_state {
	u32 last_key_pressed;
	};
	struct rc_map_opera_table {
	u32 keycode;
	u32 event;
	};

	static int dvb_usb_opera1_debug;
	module_param_named(debug, dvb_usb_opera1_debug, int, 0644);
	MODULE_PARM_DESC(debug,
	"set debugging level (1=info,xfer=2,pll=4,ts=8,err=16,rc=32,fw=64 (or-able))."
	DVB_USB_DEBUG_STATUS);

	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);


	static int opera1_xilinx_rw(struct usb_device *dev, u8 request, u16 value,
	u8 * data, u16 len, int flags)
	{
	int ret;
	u8 tmp;
	u8 *buf;
	unsigned int pipe = (flags == OPERA_READ_MSG) ?
	usb_rcvctrlpipe(dev,0) : usb_sndctrlpipe(dev, 0);
	u8 request_type = (flags == OPERA_READ_MSG) ? USB_DIR_IN : USB_DIR_OUT;

	buf = kmalloc(len, GFP_KERNEL);
	if (!buf)
	return -ENOMEM;

	if (flags == OPERA_WRITE_MSG)
	memcpy(buf, data, len);
	ret = usb_control_msg(dev, pipe, request,
	request_type \| USB_TYPE_VENDOR, value, 0x0,
	buf, len, 2000);

	if (request == OPERA_TUNER_REQ) {
	tmp = buf[0];
	if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
	OPERA_TUNER_REQ, USB_DIR_IN \| USB_TYPE_VENDOR,
	0x01, 0x0, buf, 1, 2000) < 1 \|\| buf[0] != 0x08) {
	ret = 0;
	goto out;
	}
	buf[0] = tmp;
	}
	if (flags == OPERA_READ_MSG)
	memcpy(data, buf, len);
	out:
	kfree(buf);
	return ret;
	}

	/* I2C */

	static int opera1_usb_i2c_msgxfer(struct dvb_usb_device *dev, u16 addr,
	u8 * buf, u16 len)
	{
	int ret = 0;
	u8 request;
	u16 value;

	if (!dev) {
	info("no usb_device");
	return -EINVAL;
	}
	if (mutex_lock_interruptible(&dev->usb_mutex) < 0)
	return -EAGAIN;

	switch (addr>>1){
	case ADDR_B600_VOLTAGE_13V:
	request=0xb6;
	value=0x00;
	break;
	case ADDR_B601_VOLTAGE_18V:
	request=0xb6;
	value=0x01;
	break;
	case ADDR_B1A6_STREAM_CTRL:
	request=0xb1;
	value=0xa6;
	break;
	case ADDR_B880_READ_REMOTE:
	request=0xb8;
	value=0x80;
	break;
	default:
	request=0xb1;
	value=addr;
	}
	ret = opera1_xilinx_rw(dev->udev, request,
	value, buf, len,
	addr&0x01?OPERA_READ_MSG:OPERA_WRITE_MSG);

	mutex_unlock(&dev->usb_mutex);
	return ret;
	}

	static int opera1_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
	int num)
	{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int i = 0, tmp = 0;

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

	for (i = 0; i < num; i++) {
	if ((tmp = opera1_usb_i2c_msgxfer(d,
	(msg[i].addr<<1)\|(msg[i].flags&I2C_M_RD?0x01:0),
	msg[i].buf,
	msg[i].len
	)) != msg[i].len) {
	break;
	}
	if (dvb_usb_opera1_debug & 0x10)
	info("sending i2c mesage %d %d", tmp, msg[i].len);
	}
	mutex_unlock(&d->i2c_mutex);
	return num;
	}

	static u32 opera1_i2c_func(struct i2c_adapter *adapter)
	{
	return I2C_FUNC_I2C;
	}

	static struct i2c_algorithm opera1_i2c_algo = {
	.master_xfer = opera1_i2c_xfer,
	.functionality = opera1_i2c_func,
	};

	static int opera1_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
	{
	static u8 command_13v[1]={0x00};
	static u8 command_18v[1]={0x01};
	struct i2c_msg msg[] = {
	{.addr = ADDR_B600_VOLTAGE_13V,.flags = 0,.buf = command_13v,.len = 1},
	};
	struct dvb_usb_adapter *udev_adap =
	(struct dvb_usb_adapter *)(fe->dvb->priv);
	if (voltage == SEC_VOLTAGE_18) {
	msg[0].addr = ADDR_B601_VOLTAGE_18V;
	msg[0].buf = command_18v;
	}
	i2c_transfer(&udev_adap->dev->i2c_adap, msg, 1);
	return 0;
	}

	static int opera1_stv0299_set_symbol_rate(struct dvb_frontend *fe, u32 srate,
	u32 ratio)
	{
	stv0299_writereg(fe, 0x13, 0x98);
	stv0299_writereg(fe, 0x14, 0x95);
	stv0299_writereg(fe, REG_1F_SYMBOLRATE_BYTE0, (ratio >> 16) & 0xff);
	stv0299_writereg(fe, REG_20_SYMBOLRATE_BYTE1, (ratio >> 8) & 0xff);
	stv0299_writereg(fe, REG_21_SYMBOLRATE_BYTE2, (ratio) & 0xf0);
	return 0;

	}
	static u8 opera1_inittab[] = {
	0x00, 0xa1,
	0x01, 0x15,
	0x02, 0x30,
	0x03, 0x00,
	0x04, 0x7d,
	0x05, 0x05,
	0x06, 0x02,
	0x07, 0x00,
	0x0b, 0x00,
	0x0c, 0x01,
	0x0d, 0x81,
	0x0e, 0x44,
	0x0f, 0x19,
	0x10, 0x3f,
	0x11, 0x84,
	0x12, 0xda,
	0x13, 0x98,
	0x14, 0x95,
	0x15, 0xc9,
	0x16, 0xeb,
	0x17, 0x00,
	0x18, 0x19,
	0x19, 0x8b,
	0x1a, 0x00,
	0x1b, 0x82,
	0x1c, 0x7f,
	0x1d, 0x00,
	0x1e, 0x00,
	REG_1F_SYMBOLRATE_BYTE0, 0x06,
	REG_20_SYMBOLRATE_BYTE1, 0x50,
	REG_21_SYMBOLRATE_BYTE2, 0x10,
	0x22, 0x00,
	0x23, 0x00,
	0x24, 0x37,
	0x25, 0xbc,
	0x26, 0x00,
	0x27, 0x00,
	0x28, 0x00,
	0x29, 0x1e,
	0x2a, 0x14,
	0x2b, 0x1f,
	0x2c, 0x09,
	0x2d, 0x0a,
	0x2e, 0x00,
	0x2f, 0x00,
	0x30, 0x00,
	0x31, 0x1f,
	0x32, 0x19,
	0x33, 0xfc,
	0x34, 0x13,
	0xff, 0xff,
	};

	static struct stv0299_config opera1_stv0299_config = {
	.demod_address = 0xd0>>1,
	.min_delay_ms = 100,
	.mclk = 88000000UL,
	.invert = 1,
	.skip_reinit = 0,
	.lock_output = STV0299_LOCKOUTPUT_0,
	.volt13_op0_op1 = STV0299_VOLT13_OP0,
	.inittab = opera1_inittab,
	.set_symbol_rate = opera1_stv0299_set_symbol_rate,
	};

	static int opera1_frontend_attach(struct dvb_usb_adapter *d)
	{
	d->fe_adap[0].fe = dvb_attach(stv0299_attach, &opera1_stv0299_config,
	&d->dev->i2c_adap);
	if ((d->fe_adap[0].fe) != NULL) {
	d->fe_adap[0].fe->ops.set_voltage = opera1_set_voltage;
	return 0;
	}
	info("not attached stv0299");
	return -EIO;
	}

	static int opera1_tuner_attach(struct dvb_usb_adapter *adap)
	{
	dvb_attach(
	dvb_pll_attach, adap->fe_adap[0].fe, 0xc0>>1,
	&adap->dev->i2c_adap, DVB_PLL_OPERA1
	);
	return 0;
	}

	static int opera1_power_ctrl(struct dvb_usb_device *d, int onoff)
	{
	u8 val = onoff ? 0x01 : 0x00;

	if (dvb_usb_opera1_debug)
	info("power %s", onoff ? "on" : "off");
	return opera1_xilinx_rw(d->udev, 0xb7, val,
	&val, 1, OPERA_WRITE_MSG);
	}

	static int opera1_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
	{
	static u8 buf_start[2] = { 0xff, 0x03 };
	static u8 buf_stop[2] = { 0xff, 0x00 };
	struct i2c_msg start_tuner[] = {
	{.addr = ADDR_B1A6_STREAM_CTRL,.buf = onoff ? buf_start : buf_stop,.len = 2},
	};
	if (dvb_usb_opera1_debug)
	info("streaming %s", onoff ? "on" : "off");
	i2c_transfer(&adap->dev->i2c_adap, start_tuner, 1);
	return 0;
	}

	static int opera1_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
	int onoff)
	{
	u8 b_pid[3];
	struct i2c_msg msg[] = {
	{.addr = ADDR_B1A6_STREAM_CTRL,.buf = b_pid,.len = 3},
	};
	if (dvb_usb_opera1_debug)
	info("pidfilter index: %d pid: %d %s", index, pid,
	onoff ? "on" : "off");
	b_pid[0] = (2 * index) + 4;
	b_pid[1] = onoff ? (pid & 0xff) : (0x00);
	b_pid[2] = onoff ? ((pid >> 8) & 0xff) : (0x00);
	i2c_transfer(&adap->dev->i2c_adap, msg, 1);
	return 0;
	}

	static int opera1_pid_filter_control(struct dvb_usb_adapter *adap, int onoff)
	{
	int u = 0x04;
	u8 b_pid[3];
	struct i2c_msg msg[] = {
	{.addr = ADDR_B1A6_STREAM_CTRL,.buf = b_pid,.len = 3},
	};
	if (dvb_usb_opera1_debug)
	info("%s hw-pidfilter", onoff ? "enable" : "disable");
	for (; u < 0x7e; u += 2) {
	b_pid[0] = u;
	b_pid[1] = 0;
	b_pid[2] = 0x80;
	i2c_transfer(&adap->dev->i2c_adap, msg, 1);
	}
	return 0;
	}

	static struct rc_map_table rc_map_opera1_table[] = {
	{0x5fa0, KEY_1},
	{0x51af, KEY_2},
	{0x5da2, KEY_3},
	{0x41be, KEY_4},
	{0x0bf5, KEY_5},
	{0x43bd, KEY_6},
	{0x47b8, KEY_7},
	{0x49b6, KEY_8},
	{0x05fa, KEY_9},
	{0x45ba, KEY_0},
	{0x09f6, KEY_CHANNELUP}, /chanup /
	{0x1be5, KEY_CHANNELDOWN}, /chandown /
	{0x5da3, KEY_VOLUMEDOWN}, /voldown /
	{0x5fa1, KEY_VOLUMEUP}, /volup /
	{0x07f8, KEY_SPACE}, /tab /
	{0x1fe1, KEY_OK}, /play ok /
	{0x1be4, KEY_ZOOM}, /zoom /
	{0x59a6, KEY_MUTE}, /mute /
	{0x5ba5, KEY_RADIO}, /tv/f /
	{0x19e7, KEY_RECORD}, /rec /
	{0x01fe, KEY_STOP}, /Stop /
	{0x03fd, KEY_PAUSE}, /pause /
	{0x03fc, KEY_SCREEN}, /<- -> /
	{0x07f9, KEY_CAMERA}, /capture /
	{0x47b9, KEY_ESC}, /exit /
	{0x43bc, KEY_POWER2}, /power /
	};

	static int opera1_rc_query(struct dvb_usb_device dev, u32 event, int *state)
	{
	struct opera1_state *opst = dev->priv;
	u8 rcbuffer[32];
	const u16 startmarker1 = 0x10ed;
	const u16 startmarker2 = 0x11ec;
	struct i2c_msg read_remote[] = {
	{.addr = ADDR_B880_READ_REMOTE,.buf = rcbuffer,.flags = I2C_M_RD,.len = 32},
	};
	int i = 0;
	u32 send_key = 0;

	if (i2c_transfer(&dev->i2c_adap, read_remote, 1) == 1) {
	for (i = 0; i < 32; i++) {
	if (rcbuffer[i])
	send_key \|= 1;
	if (i < 31)
	send_key = send_key << 1;
	}
	if (send_key & 0x8000)
	send_key = (send_key << 1) \| (send_key >> 15 & 0x01);

	if (send_key == 0xffff && opst->last_key_pressed != 0) {
	*state = REMOTE_KEY_REPEAT;
	*event = opst->last_key_pressed;
	return 0;
	}
	for (; send_key != 0;) {
	if (send_key >> 16 == startmarker2) {
	break;
	} else if (send_key >> 16 == startmarker1) {
	send_key =
	(send_key & 0xfffeffff) \| (startmarker1 << 16);
	break;
	} else
	send_key >>= 1;
	}

	if (send_key == 0)
	return 0;

	send_key = (send_key & 0xffff) \| 0x0100;

	for (i = 0; i < ARRAY_SIZE(rc_map_opera1_table); i++) {
	if (rc5_scan(&rc_map_opera1_table[i]) == (send_key & 0xffff)) {
	*state = REMOTE_KEY_PRESSED;
	*event = rc_map_opera1_table[i].keycode;
	opst->last_key_pressed =
	rc_map_opera1_table[i].keycode;
	break;
	}
	opst->last_key_pressed = 0;
	}
	} else
	*state = REMOTE_NO_KEY_PRESSED;
	return 0;
	}

	static struct usb_device_id opera1_table[] = {
	{USB_DEVICE(USB_VID_CYPRESS, USB_PID_OPERA1_COLD)},
	{USB_DEVICE(USB_VID_OPERA1, USB_PID_OPERA1_WARM)},
	{}
	};

	MODULE_DEVICE_TABLE(usb, opera1_table);

	static int opera1_read_mac_address(struct dvb_usb_device *d, u8 mac[6])
	{
	u8 command[] = { READ_MAC_ADDR };
	opera1_xilinx_rw(d->udev, 0xb1, 0xa0, command, 1, OPERA_WRITE_MSG);
	opera1_xilinx_rw(d->udev, 0xb1, 0xa1, mac, 6, OPERA_READ_MSG);
	return 0;
	}
	static int opera1_xilinx_load_firmware(struct usb_device *dev,
	const char *filename)
	{
	const struct firmware *fw = NULL;
	u8 b, p;
	int ret = 0, i,fpgasize=40;
	u8 testval;
	info("start downloading fpga firmware %s",filename);

	if ((ret = request_firmware(&fw, filename, &dev->dev)) != 0) {
	err("did not find the firmware file. (%s) "
	"Please see linux/Documentation/dvb/ for more details on firmware-problems.",
	filename);
	return ret;
	} else {
	p = kmalloc(fw->size, GFP_KERNEL);
	opera1_xilinx_rw(dev, 0xbc, 0x00, &testval, 1, OPERA_READ_MSG);
	if (p != NULL && testval != 0x67) {

	u8 reset = 0, fpga_command = 0;
	memcpy(p, fw->data, fw->size);
	/* clear fpga ? */
	opera1_xilinx_rw(dev, 0xbc, 0xaa, &fpga_command, 1,
	OPERA_WRITE_MSG);
	for (i = 0; i < fw->size;) {
	if ( (fw->size - i) <fpgasize){
	fpgasize=fw->size-i;
	}
	b = (u8 *) p + i;
	if (opera1_xilinx_rw
	(dev, OPERA_WRITE_FX2, 0x0, b , fpgasize,
	OPERA_WRITE_MSG) != fpgasize
	) {
	err("error while transferring firmware");
	ret = -EINVAL;
	break;
	}
	i = i + fpgasize;
	}
	/* restart the CPU */
	if (ret \|\| opera1_xilinx_rw
	(dev, 0xa0, 0xe600, &reset, 1,
	OPERA_WRITE_MSG) != 1) {
	err("could not restart the USB controller CPU.");
	ret = -EINVAL;
	}
	}
	}
	kfree(p);
	release_firmware(fw);
	return ret;
	}

	static struct dvb_usb_device_properties opera1_properties = {
	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
	.usb_ctrl = CYPRESS_FX2,
	.firmware = "dvb-usb-opera-01.fw",
	.size_of_priv = sizeof(struct opera1_state),

	.power_ctrl = opera1_power_ctrl,
	.i2c_algo = &opera1_i2c_algo,

	.rc.legacy = {
	.rc_map_table = rc_map_opera1_table,
	.rc_map_size = ARRAY_SIZE(rc_map_opera1_table),
	.rc_interval = 200,
	.rc_query = opera1_rc_query,
	},
	.read_mac_address = opera1_read_mac_address,
	.generic_bulk_ctrl_endpoint = 0x00,
	/* parameter for the MPEG2-data transfer */
	.num_adapters = 1,
	.adapter = {
	{
	.num_frontends = 1,
	.fe = {{
	.frontend_attach = opera1_frontend_attach,
	.streaming_ctrl = opera1_streaming_ctrl,
	.tuner_attach = opera1_tuner_attach,
	.caps =
	DVB_USB_ADAP_HAS_PID_FILTER \|
	DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
	.pid_filter = opera1_pid_filter,
	.pid_filter_ctrl = opera1_pid_filter_control,
	.pid_filter_count = 252,
	.stream = {
	.type = USB_BULK,
	.count = 10,
	.endpoint = 0x82,
	.u = {
	.bulk = {
	.buffersize = 4096,
	}
	}
	},
	}},
	}
	},
	.num_device_descs = 1,
	.devices = {
	{"Opera1 DVB-S USB2.0",
	{&opera1_table[0], NULL},
	{&opera1_table[1], NULL},
	},
	}
	};

	static int opera1_probe(struct usb_interface *intf,
	const struct usb_device_id *id)
	{
	struct usb_device *udev = interface_to_usbdev(intf);

	if (udev->descriptor.idProduct == USB_PID_OPERA1_WARM &&
	udev->descriptor.idVendor == USB_VID_OPERA1 &&
	opera1_xilinx_load_firmware(udev, "dvb-usb-opera1-fpga-01.fw") != 0
	) {
	return -EINVAL;
	}

	if (0 != dvb_usb_device_init(intf, &opera1_properties,
	THIS_MODULE, NULL, adapter_nr))
	return -EINVAL;
	return 0;
	}

	static struct usb_driver opera1_driver = {
	.name = "opera1",
	.probe = opera1_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table = opera1_table,
	};

	module_usb_driver(opera1_driver);

	MODULE_AUTHOR("Mario Hlawitschka (c) dh1pa@amsat.org");
	MODULE_AUTHOR("Marco Gittler (c) g.marco@freenet.de");
	MODULE_DESCRIPTION("Driver for Opera1 DVB-S device");
	MODULE_VERSION("0.1");
	MODULE_LICENSE("GPL");