1/*
2 * Linux driver for Technisat DVB-S/S2 USB 2.0 device
3 *
4 * Copyright (C) 2010 Patrick Boettcher,
5 *                    Kernel Labs Inc. PO Box 745, St James, NY 11780
6 *
7 * Development was sponsored by Technisat Digital UK Limited, whose
8 * registered office is Witan Gate House 500 - 600 Witan Gate West,
9 * Milton Keynes, MK9 1SH
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of the
14 * License, or (at your option) any later version.
15 *
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 *
21 * THIS PROGRAM IS PROVIDED "AS IS" AND BOTH THE COPYRIGHT HOLDER AND
22 * TECHNISAT DIGITAL UK LTD DISCLAIM ALL WARRANTIES WITH REGARD TO
23 * THIS PROGRAM INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR
24 * FITNESS FOR A PARTICULAR PURPOSE.  NEITHER THE COPYRIGHT HOLDER
25 * NOR TECHNISAT DIGITAL UK LIMITED SHALL BE LIABLE FOR ANY SPECIAL,
26 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
27 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
28 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
29 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS PROGRAM. See the
30 * GNU General Public License for more details.
31 */
32
33#define DVB_USB_LOG_PREFIX "technisat-usb2"
34#include "dvb-usb.h"
35
36#include "stv6110x.h"
37#include "stv090x.h"
38
39/* module parameters */
40DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
41
42static int debug;
43module_param(debug, int, 0644);
44MODULE_PARM_DESC(debug,
45		"set debugging level (bit-mask: 1=info,2=eeprom,4=i2c,8=rc)." \
46		DVB_USB_DEBUG_STATUS);
47
48/* disables all LED control command and
49 * also does not start the signal polling thread */
50static int disable_led_control;
51module_param(disable_led_control, int, 0444);
52MODULE_PARM_DESC(disable_led_control,
53		"disable LED control of the device "
54		"(default: 0 - LED control is active).");
55
56/* device private data */
57struct technisat_usb2_state {
58	struct dvb_usb_device *dev;
59	struct delayed_work green_led_work;
60	u8 power_state;
61
62	u16 last_scan_code;
63};
64
65/* debug print helpers */
66#define deb_info(args...)    dprintk(debug, 0x01, args)
67#define deb_eeprom(args...)  dprintk(debug, 0x02, args)
68#define deb_i2c(args...)     dprintk(debug, 0x04, args)
69#define deb_rc(args...)      dprintk(debug, 0x08, args)
70
71/* vendor requests */
72#define SET_IFCLK_TO_EXTERNAL_TSCLK_VENDOR_REQUEST 0xB3
73#define SET_FRONT_END_RESET_VENDOR_REQUEST         0xB4
74#define GET_VERSION_INFO_VENDOR_REQUEST            0xB5
75#define SET_GREEN_LED_VENDOR_REQUEST               0xB6
76#define SET_RED_LED_VENDOR_REQUEST                 0xB7
77#define GET_IR_DATA_VENDOR_REQUEST                 0xB8
78#define SET_LED_TIMER_DIVIDER_VENDOR_REQUEST       0xB9
79#define SET_USB_REENUMERATION                      0xBA
80
81/* i2c-access methods */
82#define I2C_SPEED_100KHZ_BIT 0x40
83
84#define I2C_STATUS_NAK 7
85#define I2C_STATUS_OK 8
86
87static int technisat_usb2_i2c_access(struct usb_device *udev,
88		u8 device_addr, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
89{
90	u8 b[64];
91	int ret, actual_length;
92
93	deb_i2c("i2c-access: %02x, tx: ", device_addr);
94	debug_dump(tx, txlen, deb_i2c);
95	deb_i2c(" ");
96
97	if (txlen > 62) {
98		err("i2c TX buffer can't exceed 62 bytes (dev 0x%02x)",
99				device_addr);
100		txlen = 62;
101	}
102	if (rxlen > 62) {
103		err("i2c RX buffer can't exceed 62 bytes (dev 0x%02x)",
104				device_addr);
105		rxlen = 62;
106	}
107
108	b[0] = I2C_SPEED_100KHZ_BIT;
109	b[1] = device_addr << 1;
110
111	if (rx != NULL) {
112		b[0] |= rxlen;
113		b[1] |= 1;
114	}
115
116	memcpy(&b[2], tx, txlen);
117	ret = usb_bulk_msg(udev,
118			usb_sndbulkpipe(udev, 0x01),
119			b, 2 + txlen,
120			NULL, 1000);
121
122	if (ret < 0) {
123		err("i2c-error: out failed %02x = %d", device_addr, ret);
124		return -ENODEV;
125	}
126
127	ret = usb_bulk_msg(udev,
128			usb_rcvbulkpipe(udev, 0x01),
129			b, 64, &actual_length, 1000);
130	if (ret < 0) {
131		err("i2c-error: in failed %02x = %d", device_addr, ret);
132		return -ENODEV;
133	}
134
135	if (b[0] != I2C_STATUS_OK) {
136		err("i2c-error: %02x = %d", device_addr, b[0]);
137		/* handle tuner-i2c-nak */
138		if (!(b[0] == I2C_STATUS_NAK &&
139				device_addr == 0x60
140				/* && device_is_technisat_usb2 */))
141			return -ENODEV;
142	}
143
144	deb_i2c("status: %d, ", b[0]);
145
146	if (rx != NULL) {
147		memcpy(rx, &b[2], rxlen);
148
149		deb_i2c("rx (%d): ", rxlen);
150		debug_dump(rx, rxlen, deb_i2c);
151	}
152
153	deb_i2c("\n");
154
155	return 0;
156}
157
158static int technisat_usb2_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
159				int num)
160{
161	int ret = 0, i;
162	struct dvb_usb_device *d = i2c_get_adapdata(adap);
163
164	/* Ensure nobody else hits the i2c bus while we're sending our
165	   sequence of messages, (such as the remote control thread) */
166	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
167		return -EAGAIN;
168
169	for (i = 0; i < num; i++) {
170		if (i+1 < num && msg[i+1].flags & I2C_M_RD) {
171			ret = technisat_usb2_i2c_access(d->udev, msg[i+1].addr,
172						msg[i].buf, msg[i].len,
173						msg[i+1].buf, msg[i+1].len);
174			if (ret != 0)
175				break;
176			i++;
177		} else {
178			ret = technisat_usb2_i2c_access(d->udev, msg[i].addr,
179						msg[i].buf, msg[i].len,
180						NULL, 0);
181			if (ret != 0)
182				break;
183		}
184	}
185
186	if (ret == 0)
187		ret = i;
188
189	mutex_unlock(&d->i2c_mutex);
190
191	return ret;
192}
193
194static u32 technisat_usb2_i2c_func(struct i2c_adapter *adapter)
195{
196	return I2C_FUNC_I2C;
197}
198
199static struct i2c_algorithm technisat_usb2_i2c_algo = {
200	.master_xfer   = technisat_usb2_i2c_xfer,
201	.functionality = technisat_usb2_i2c_func,
202};
203
204#if 0
205static void technisat_usb2_frontend_reset(struct usb_device *udev)
206{
207	usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
208			SET_FRONT_END_RESET_VENDOR_REQUEST,
209			USB_TYPE_VENDOR | USB_DIR_OUT,
210			10, 0,
211			NULL, 0, 500);
212}
213#endif
214
215/* LED control */
216enum technisat_usb2_led_state {
217	TECH_LED_OFF,
218	TECH_LED_BLINK,
219	TECH_LED_ON,
220	TECH_LED_UNDEFINED
221};
222
223static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum technisat_usb2_led_state state)
224{
225	int ret;
226
227	u8 led[8] = {
228		red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
229		0
230	};
231
232	if (disable_led_control && state != TECH_LED_OFF)
233		return 0;
234
235	switch (state) {
236	case TECH_LED_ON:
237		led[1] = 0x82;
238		break;
239	case TECH_LED_BLINK:
240		led[1] = 0x82;
241		if (red) {
242			led[2] = 0x02;
243			led[3] = 10;
244			led[4] = 10;
245		} else {
246			led[2] = 0xff;
247			led[3] = 50;
248			led[4] = 50;
249		}
250		led[5] = 1;
251		break;
252
253	default:
254	case TECH_LED_OFF:
255		led[1] = 0x80;
256		break;
257	}
258
259	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
260		return -EAGAIN;
261
262	ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
263		red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
264		USB_TYPE_VENDOR | USB_DIR_OUT,
265		0, 0,
266		led, sizeof(led), 500);
267
268	mutex_unlock(&d->i2c_mutex);
269	return ret;
270}
271
272static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 green)
273{
274	int ret;
275	u8 b = 0;
276
277	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
278		return -EAGAIN;
279
280	ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
281		SET_LED_TIMER_DIVIDER_VENDOR_REQUEST,
282		USB_TYPE_VENDOR | USB_DIR_OUT,
283		(red << 8) | green, 0,
284		&b, 1, 500);
285
286	mutex_unlock(&d->i2c_mutex);
287
288	return ret;
289}
290
291static void technisat_usb2_green_led_control(struct work_struct *work)
292{
293	struct technisat_usb2_state *state =
294		container_of(work, struct technisat_usb2_state, green_led_work.work);
295	struct dvb_frontend *fe = state->dev->adapter[0].fe_adap[0].fe;
296
297	if (state->power_state == 0)
298		goto schedule;
299
300	if (fe != NULL) {
301		enum fe_status status;
302
303		if (fe->ops.read_status(fe, &status) != 0)
304			goto schedule;
305
306		if (status & FE_HAS_LOCK) {
307			u32 ber;
308
309			if (fe->ops.read_ber(fe, &ber) != 0)
310				goto schedule;
311
312			if (ber > 1000)
313				technisat_usb2_set_led(state->dev, 0, TECH_LED_BLINK);
314			else
315				technisat_usb2_set_led(state->dev, 0, TECH_LED_ON);
316		} else
317			technisat_usb2_set_led(state->dev, 0, TECH_LED_OFF);
318	}
319
320schedule:
321	schedule_delayed_work(&state->green_led_work,
322			msecs_to_jiffies(500));
323}
324
325/* method to find out whether the firmware has to be downloaded or not */
326static int technisat_usb2_identify_state(struct usb_device *udev,
327		struct dvb_usb_device_properties *props,
328		struct dvb_usb_device_description **desc, int *cold)
329{
330	int ret;
331	u8 version[3];
332
333	/* first select the interface */
334	if (usb_set_interface(udev, 0, 1) != 0)
335		err("could not set alternate setting to 0");
336	else
337		info("set alternate setting");
338
339	*cold = 0; /* by default do not download a firmware - just in case something is wrong */
340
341	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
342		GET_VERSION_INFO_VENDOR_REQUEST,
343		USB_TYPE_VENDOR | USB_DIR_IN,
344		0, 0,
345		version, sizeof(version), 500);
346
347	if (ret < 0)
348		*cold = 1;
349	else {
350		info("firmware version: %d.%d", version[1], version[2]);
351		*cold = 0;
352	}
353
354	return 0;
355}
356
357/* power control */
358static int technisat_usb2_power_ctrl(struct dvb_usb_device *d, int level)
359{
360	struct technisat_usb2_state *state = d->priv;
361
362	state->power_state = level;
363
364	if (disable_led_control)
365		return 0;
366
367	/* green led is turned off in any case - will be turned on when tuning */
368	technisat_usb2_set_led(d, 0, TECH_LED_OFF);
369	/* red led is turned on all the time */
370	technisat_usb2_set_led(d, 1, TECH_LED_ON);
371	return 0;
372}
373
374/* mac address reading - from the eeprom */
375#if 0
376static void technisat_usb2_eeprom_dump(struct dvb_usb_device *d)
377{
378	u8 reg;
379	u8 b[16];
380	int i, j;
381
382	/* full EEPROM dump */
383	for (j = 0; j < 256 * 4; j += 16) {
384		reg = j;
385		if (technisat_usb2_i2c_access(d->udev, 0x50 + j / 256, &reg, 1, b, 16) != 0)
386			break;
387
388		deb_eeprom("EEPROM: %01x%02x: ", j / 256, reg);
389		for (i = 0; i < 16; i++)
390			deb_eeprom("%02x ", b[i]);
391		deb_eeprom("\n");
392	}
393}
394#endif
395
396static u8 technisat_usb2_calc_lrc(const u8 *b, u16 length)
397{
398	u8 lrc = 0;
399	while (--length)
400		lrc ^= *b++;
401	return lrc;
402}
403
404static int technisat_usb2_eeprom_lrc_read(struct dvb_usb_device *d,
405	u16 offset, u8 *b, u16 length, u8 tries)
406{
407	u8 bo = offset & 0xff;
408	struct i2c_msg msg[] = {
409		{
410			.addr = 0x50 | ((offset >> 8) & 0x3),
411			.buf = &bo,
412			.len = 1
413		}, {
414			.addr = 0x50 | ((offset >> 8) & 0x3),
415			.flags	= I2C_M_RD,
416			.buf = b,
417			.len = length
418		}
419	};
420
421	while (tries--) {
422		int status;
423
424		if (i2c_transfer(&d->i2c_adap, msg, 2) != 2)
425			break;
426
427		status =
428			technisat_usb2_calc_lrc(b, length - 1) == b[length - 1];
429
430		if (status)
431			return 0;
432	}
433
434	return -EREMOTEIO;
435}
436
437#define EEPROM_MAC_START 0x3f8
438#define EEPROM_MAC_TOTAL 8
439static int technisat_usb2_read_mac_address(struct dvb_usb_device *d,
440		u8 mac[])
441{
442	u8 buf[EEPROM_MAC_TOTAL];
443
444	if (technisat_usb2_eeprom_lrc_read(d, EEPROM_MAC_START,
445				buf, EEPROM_MAC_TOTAL, 4) != 0)
446		return -ENODEV;
447
448	memcpy(mac, buf, 6);
449	return 0;
450}
451
452static struct stv090x_config technisat_usb2_stv090x_config;
453
454/* frontend attach */
455static int technisat_usb2_set_voltage(struct dvb_frontend *fe,
456		fe_sec_voltage_t voltage)
457{
458	int i;
459	u8 gpio[3] = { 0 }; /* 0 = 2, 1 = 3, 2 = 4 */
460
461	gpio[2] = 1; /* high - voltage ? */
462
463	switch (voltage) {
464	case SEC_VOLTAGE_13:
465		gpio[0] = 1;
466		break;
467	case SEC_VOLTAGE_18:
468		gpio[0] = 1;
469		gpio[1] = 1;
470		break;
471	default:
472	case SEC_VOLTAGE_OFF:
473		break;
474	}
475
476	for (i = 0; i < 3; i++)
477		if (technisat_usb2_stv090x_config.set_gpio(fe, i+2, 0,
478							   gpio[i], 0) != 0)
479			return -EREMOTEIO;
480	return 0;
481}
482
483static struct stv090x_config technisat_usb2_stv090x_config = {
484	.device         = STV0903,
485	.demod_mode     = STV090x_SINGLE,
486	.clk_mode       = STV090x_CLK_EXT,
487
488	.xtal           = 8000000,
489	.address        = 0x68,
490
491	.ts1_mode       = STV090x_TSMODE_DVBCI,
492	.ts1_clk        = 13400000,
493	.ts1_tei        = 1,
494
495	.repeater_level = STV090x_RPTLEVEL_64,
496
497	.tuner_bbgain   = 6,
498};
499
500static struct stv6110x_config technisat_usb2_stv6110x_config = {
501	.addr           = 0x60,
502	.refclk         = 16000000,
503	.clk_div        = 2,
504};
505
506static int technisat_usb2_frontend_attach(struct dvb_usb_adapter *a)
507{
508	struct usb_device *udev = a->dev->udev;
509	int ret;
510
511	a->fe_adap[0].fe = dvb_attach(stv090x_attach, &technisat_usb2_stv090x_config,
512			&a->dev->i2c_adap, STV090x_DEMODULATOR_0);
513
514	if (a->fe_adap[0].fe) {
515		struct stv6110x_devctl *ctl;
516
517		ctl = dvb_attach(stv6110x_attach,
518				a->fe_adap[0].fe,
519				&technisat_usb2_stv6110x_config,
520				&a->dev->i2c_adap);
521
522		if (ctl) {
523			technisat_usb2_stv090x_config.tuner_init          = ctl->tuner_init;
524			technisat_usb2_stv090x_config.tuner_sleep         = ctl->tuner_sleep;
525			technisat_usb2_stv090x_config.tuner_set_mode      = ctl->tuner_set_mode;
526			technisat_usb2_stv090x_config.tuner_set_frequency = ctl->tuner_set_frequency;
527			technisat_usb2_stv090x_config.tuner_get_frequency = ctl->tuner_get_frequency;
528			technisat_usb2_stv090x_config.tuner_set_bandwidth = ctl->tuner_set_bandwidth;
529			technisat_usb2_stv090x_config.tuner_get_bandwidth = ctl->tuner_get_bandwidth;
530			technisat_usb2_stv090x_config.tuner_set_bbgain    = ctl->tuner_set_bbgain;
531			technisat_usb2_stv090x_config.tuner_get_bbgain    = ctl->tuner_get_bbgain;
532			technisat_usb2_stv090x_config.tuner_set_refclk    = ctl->tuner_set_refclk;
533			technisat_usb2_stv090x_config.tuner_get_status    = ctl->tuner_get_status;
534
535			/* call the init function once to initialize
536			   tuner's clock output divider and demod's
537			   master clock */
538			if (a->fe_adap[0].fe->ops.init)
539				a->fe_adap[0].fe->ops.init(a->fe_adap[0].fe);
540
541			if (mutex_lock_interruptible(&a->dev->i2c_mutex) < 0)
542				return -EAGAIN;
543
544			ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
545					SET_IFCLK_TO_EXTERNAL_TSCLK_VENDOR_REQUEST,
546					USB_TYPE_VENDOR | USB_DIR_OUT,
547					0, 0,
548					NULL, 0, 500);
549			mutex_unlock(&a->dev->i2c_mutex);
550
551			if (ret != 0)
552				err("could not set IF_CLK to external");
553
554			a->fe_adap[0].fe->ops.set_voltage = technisat_usb2_set_voltage;
555
556			/* if everything was successful assign a nice name to the frontend */
557			strlcpy(a->fe_adap[0].fe->ops.info.name, a->dev->desc->name,
558					sizeof(a->fe_adap[0].fe->ops.info.name));
559		} else {
560			dvb_frontend_detach(a->fe_adap[0].fe);
561			a->fe_adap[0].fe = NULL;
562		}
563	}
564
565	technisat_usb2_set_led_timer(a->dev, 1, 1);
566
567	return a->fe_adap[0].fe == NULL ? -ENODEV : 0;
568}
569
570/* Remote control */
571
572/* the device is giving providing raw IR-signals to the host mapping
573 * it only to one remote control is just the default implementation
574 */
575#define NOMINAL_IR_BIT_TRANSITION_TIME_US 889
576#define NOMINAL_IR_BIT_TIME_US (2 * NOMINAL_IR_BIT_TRANSITION_TIME_US)
577
578#define FIRMWARE_CLOCK_TICK 83333
579#define FIRMWARE_CLOCK_DIVISOR 256
580
581#define IR_PERCENT_TOLERANCE 15
582
583#define NOMINAL_IR_BIT_TRANSITION_TICKS ((NOMINAL_IR_BIT_TRANSITION_TIME_US * 1000 * 1000) / FIRMWARE_CLOCK_TICK)
584#define NOMINAL_IR_BIT_TRANSITION_TICK_COUNT (NOMINAL_IR_BIT_TRANSITION_TICKS / FIRMWARE_CLOCK_DIVISOR)
585
586#define NOMINAL_IR_BIT_TIME_TICKS ((NOMINAL_IR_BIT_TIME_US * 1000 * 1000) / FIRMWARE_CLOCK_TICK)
587#define NOMINAL_IR_BIT_TIME_TICK_COUNT (NOMINAL_IR_BIT_TIME_TICKS / FIRMWARE_CLOCK_DIVISOR)
588
589#define MINIMUM_IR_BIT_TRANSITION_TICK_COUNT (NOMINAL_IR_BIT_TRANSITION_TICK_COUNT - ((NOMINAL_IR_BIT_TRANSITION_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100))
590#define MAXIMUM_IR_BIT_TRANSITION_TICK_COUNT (NOMINAL_IR_BIT_TRANSITION_TICK_COUNT + ((NOMINAL_IR_BIT_TRANSITION_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100))
591
592#define MINIMUM_IR_BIT_TIME_TICK_COUNT (NOMINAL_IR_BIT_TIME_TICK_COUNT - ((NOMINAL_IR_BIT_TIME_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100))
593#define MAXIMUM_IR_BIT_TIME_TICK_COUNT (NOMINAL_IR_BIT_TIME_TICK_COUNT + ((NOMINAL_IR_BIT_TIME_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100))
594
595static int technisat_usb2_get_ir(struct dvb_usb_device *d)
596{
597	u8 buf[62], *b;
598	int ret;
599	struct ir_raw_event ev;
600
601	buf[0] = GET_IR_DATA_VENDOR_REQUEST;
602	buf[1] = 0x08;
603	buf[2] = 0x8f;
604	buf[3] = MINIMUM_IR_BIT_TRANSITION_TICK_COUNT;
605	buf[4] = MAXIMUM_IR_BIT_TIME_TICK_COUNT;
606
607	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
608		return -EAGAIN;
609	ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
610			GET_IR_DATA_VENDOR_REQUEST,
611			USB_TYPE_VENDOR | USB_DIR_OUT,
612			0, 0,
613			buf, 5, 500);
614	if (ret < 0)
615		goto unlock;
616
617	buf[1] = 0;
618	buf[2] = 0;
619	ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0),
620			GET_IR_DATA_VENDOR_REQUEST,
621			USB_TYPE_VENDOR | USB_DIR_IN,
622			0x8080, 0,
623			buf, sizeof(buf), 500);
624
625unlock:
626	mutex_unlock(&d->i2c_mutex);
627
628	if (ret < 0)
629		return ret;
630
631	if (ret == 1)
632		return 0; /* no key pressed */
633
634	/* decoding */
635	b = buf+1;
636
637#if 0
638	deb_rc("RC: %d ", ret);
639	debug_dump(b, ret, deb_rc);
640#endif
641
642	ev.pulse = 0;
643	while (1) {
644		ev.pulse = !ev.pulse;
645		ev.duration = (*b * FIRMWARE_CLOCK_DIVISOR * FIRMWARE_CLOCK_TICK) / 1000;
646		ir_raw_event_store(d->rc_dev, &ev);
647
648		b++;
649		if (*b == 0xff) {
650			ev.pulse = 0;
651			ev.duration = 888888*2;
652			ir_raw_event_store(d->rc_dev, &ev);
653			break;
654		}
655	}
656
657	ir_raw_event_handle(d->rc_dev);
658
659	return 1;
660}
661
662static int technisat_usb2_rc_query(struct dvb_usb_device *d)
663{
664	int ret = technisat_usb2_get_ir(d);
665
666	if (ret < 0)
667		return ret;
668
669	if (ret == 0)
670		return 0;
671
672	if (!disable_led_control)
673		technisat_usb2_set_led(d, 1, TECH_LED_BLINK);
674
675	return 0;
676}
677
678/* DVB-USB and USB stuff follows */
679static struct usb_device_id technisat_usb2_id_table[] = {
680	{ USB_DEVICE(USB_VID_TECHNISAT, USB_PID_TECHNISAT_USB2_DVB_S2) },
681	{ 0 }		/* Terminating entry */
682};
683MODULE_DEVICE_TABLE(usb, technisat_usb2_id_table);
684
685/* device description */
686static struct dvb_usb_device_properties technisat_usb2_devices = {
687	.caps              = DVB_USB_IS_AN_I2C_ADAPTER,
688
689	.usb_ctrl          = CYPRESS_FX2,
690
691	.identify_state    = technisat_usb2_identify_state,
692	.firmware          = "dvb-usb-SkyStar_USB_HD_FW_v17_63.HEX.fw",
693
694	.size_of_priv      = sizeof(struct technisat_usb2_state),
695
696	.i2c_algo          = &technisat_usb2_i2c_algo,
697
698	.power_ctrl        = technisat_usb2_power_ctrl,
699	.read_mac_address  = technisat_usb2_read_mac_address,
700
701	.num_adapters = 1,
702	.adapter = {
703		{
704		.num_frontends = 1,
705		.fe = {{
706			.frontend_attach  = technisat_usb2_frontend_attach,
707
708			.stream = {
709				.type = USB_ISOC,
710				.count = 8,
711				.endpoint = 0x2,
712				.u = {
713					.isoc = {
714						.framesperurb = 32,
715						.framesize = 2048,
716						.interval = 1,
717					}
718				}
719			},
720		}},
721			.size_of_priv = 0,
722		},
723	},
724
725	.num_device_descs = 1,
726	.devices = {
727		{   "Technisat SkyStar USB HD (DVB-S/S2)",
728			{ &technisat_usb2_id_table[0], NULL },
729			{ NULL },
730		},
731	},
732
733	.rc.core = {
734		.rc_interval = 100,
735		.rc_codes    = RC_MAP_TECHNISAT_USB2,
736		.module_name = "technisat-usb2",
737		.rc_query    = technisat_usb2_rc_query,
738		.allowed_protos = RC_BIT_ALL,
739		.driver_type    = RC_DRIVER_IR_RAW,
740	}
741};
742
743static int technisat_usb2_probe(struct usb_interface *intf,
744		const struct usb_device_id *id)
745{
746	struct dvb_usb_device *dev;
747
748	if (dvb_usb_device_init(intf, &technisat_usb2_devices, THIS_MODULE,
749				&dev, adapter_nr) != 0)
750		return -ENODEV;
751
752	if (dev) {
753		struct technisat_usb2_state *state = dev->priv;
754		state->dev = dev;
755
756		if (!disable_led_control) {
757			INIT_DELAYED_WORK(&state->green_led_work,
758					technisat_usb2_green_led_control);
759			schedule_delayed_work(&state->green_led_work,
760					msecs_to_jiffies(500));
761		}
762	}
763
764	return 0;
765}
766
767static void technisat_usb2_disconnect(struct usb_interface *intf)
768{
769	struct dvb_usb_device *dev = usb_get_intfdata(intf);
770
771	/* work and stuff was only created when the device is is hot-state */
772	if (dev != NULL) {
773		struct technisat_usb2_state *state = dev->priv;
774		if (state != NULL)
775			cancel_delayed_work_sync(&state->green_led_work);
776	}
777
778	dvb_usb_device_exit(intf);
779}
780
781static struct usb_driver technisat_usb2_driver = {
782	.name       = "dvb_usb_technisat_usb2",
783	.probe      = technisat_usb2_probe,
784	.disconnect = technisat_usb2_disconnect,
785	.id_table   = technisat_usb2_id_table,
786};
787
788module_usb_driver(technisat_usb2_driver);
789
790MODULE_AUTHOR("Patrick Boettcher <pboettcher@kernellabs.com>");
791MODULE_DESCRIPTION("Driver for Technisat DVB-S/S2 USB 2.0 device");
792MODULE_VERSION("1.0");
793MODULE_LICENSE("GPL");
794