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 * THIS PROGRAM IS PROVIDED "AS IS" AND BOTH THE COPYRIGHT HOLDER AND
18 * TECHNISAT DIGITAL UK LTD DISCLAIM ALL WARRANTIES WITH REGARD TO
19 * THIS PROGRAM INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR
20 * FITNESS FOR A PARTICULAR PURPOSE. NEITHER THE COPYRIGHT HOLDER
21 * NOR TECHNISAT DIGITAL UK LIMITED SHALL BE LIABLE FOR ANY SPECIAL,
22 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
23 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
24 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
25 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS PROGRAM. See the
26 * GNU General Public License for more details.
27 */
28
29 #define DVB_USB_LOG_PREFIX "technisat-usb2"
30 #include "dvb-usb.h"
31
32 #include "stv6110x.h"
33 #include "stv090x.h"
34
35 /* module parameters */
36 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
37
38 static int debug;
39 module_param(debug, int, 0644);
40 MODULE_PARM_DESC(debug,
41 "set debugging level (bit-mask: 1=info,2=eeprom,4=i2c,8=rc)." \
42 DVB_USB_DEBUG_STATUS);
43
44 /* disables all LED control command and
45 * also does not start the signal polling thread */
46 static int disable_led_control;
47 module_param(disable_led_control, int, 0444);
48 MODULE_PARM_DESC(disable_led_control,
49 "disable LED control of the device (default: 0 - LED control is active).");
50
51 /* device private data */
52 struct technisat_usb2_state {
53 struct dvb_usb_device *dev;
54 struct delayed_work green_led_work;
55 u8 power_state;
56
57 u16 last_scan_code;
58
59 u8 buf[64];
60 };
61
62 /* debug print helpers */
63 #define deb_info(args...) dprintk(debug, 0x01, args)
64 #define deb_eeprom(args...) dprintk(debug, 0x02, args)
65 #define deb_i2c(args...) dprintk(debug, 0x04, args)
66 #define deb_rc(args...) dprintk(debug, 0x08, args)
67
68 /* vendor requests */
69 #define SET_IFCLK_TO_EXTERNAL_TSCLK_VENDOR_REQUEST 0xB3
70 #define SET_FRONT_END_RESET_VENDOR_REQUEST 0xB4
71 #define GET_VERSION_INFO_VENDOR_REQUEST 0xB5
72 #define SET_GREEN_LED_VENDOR_REQUEST 0xB6
73 #define SET_RED_LED_VENDOR_REQUEST 0xB7
74 #define GET_IR_DATA_VENDOR_REQUEST 0xB8
75 #define SET_LED_TIMER_DIVIDER_VENDOR_REQUEST 0xB9
76 #define SET_USB_REENUMERATION 0xBA
77
78 /* i2c-access methods */
79 #define I2C_SPEED_100KHZ_BIT 0x40
80
81 #define I2C_STATUS_NAK 7
82 #define I2C_STATUS_OK 8
83
technisat_usb2_i2c_access(struct usb_device * udev,u8 device_addr,u8 * tx,u8 txlen,u8 * rx,u8 rxlen)84 static int technisat_usb2_i2c_access(struct usb_device *udev,
85 u8 device_addr, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
86 {
87 u8 *b;
88 int ret, actual_length;
89
90 b = kmalloc(64, GFP_KERNEL);
91 if (!b)
92 return -ENOMEM;
93
94 deb_i2c("i2c-access: %02x, tx: ", device_addr);
95 debug_dump(tx, txlen, deb_i2c);
96 deb_i2c(" ");
97
98 if (txlen > 62) {
99 err("i2c TX buffer can't exceed 62 bytes (dev 0x%02x)",
100 device_addr);
101 txlen = 62;
102 }
103 if (rxlen > 62) {
104 err("i2c RX buffer can't exceed 62 bytes (dev 0x%02x)",
105 device_addr);
106 rxlen = 62;
107 }
108
109 b[0] = I2C_SPEED_100KHZ_BIT;
110 b[1] = device_addr << 1;
111
112 if (rx != NULL) {
113 b[0] |= rxlen;
114 b[1] |= 1;
115 }
116
117 memcpy(&b[2], tx, txlen);
118 ret = usb_bulk_msg(udev,
119 usb_sndbulkpipe(udev, 0x01),
120 b, 2 + txlen,
121 NULL, 1000);
122
123 if (ret < 0) {
124 err("i2c-error: out failed %02x = %d", device_addr, ret);
125 goto err;
126 }
127
128 ret = usb_bulk_msg(udev,
129 usb_rcvbulkpipe(udev, 0x01),
130 b, 64, &actual_length, 1000);
131 if (ret < 0) {
132 err("i2c-error: in failed %02x = %d", device_addr, ret);
133 goto err;
134 }
135
136 if (b[0] != I2C_STATUS_OK) {
137 err("i2c-error: %02x = %d", device_addr, b[0]);
138 /* handle tuner-i2c-nak */
139 if (!(b[0] == I2C_STATUS_NAK &&
140 device_addr == 0x60
141 /* && device_is_technisat_usb2 */))
142 goto err;
143 }
144
145 deb_i2c("status: %d, ", b[0]);
146
147 if (rx != NULL) {
148 memcpy(rx, &b[2], rxlen);
149
150 deb_i2c("rx (%d): ", rxlen);
151 debug_dump(rx, rxlen, deb_i2c);
152 }
153
154 deb_i2c("\n");
155
156 err:
157 kfree(b);
158 return ret;
159 }
160
technisat_usb2_i2c_xfer(struct i2c_adapter * adap,struct i2c_msg * msg,int num)161 static int technisat_usb2_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
162 int num)
163 {
164 int ret = 0, i;
165 struct dvb_usb_device *d = i2c_get_adapdata(adap);
166
167 /* Ensure nobody else hits the i2c bus while we're sending our
168 sequence of messages, (such as the remote control thread) */
169 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
170 return -EAGAIN;
171
172 for (i = 0; i < num; i++) {
173 if (i+1 < num && msg[i+1].flags & I2C_M_RD) {
174 ret = technisat_usb2_i2c_access(d->udev, msg[i+1].addr,
175 msg[i].buf, msg[i].len,
176 msg[i+1].buf, msg[i+1].len);
177 if (ret != 0)
178 break;
179 i++;
180 } else {
181 ret = technisat_usb2_i2c_access(d->udev, msg[i].addr,
182 msg[i].buf, msg[i].len,
183 NULL, 0);
184 if (ret != 0)
185 break;
186 }
187 }
188
189 if (ret == 0)
190 ret = i;
191
192 mutex_unlock(&d->i2c_mutex);
193
194 return ret;
195 }
196
technisat_usb2_i2c_func(struct i2c_adapter * adapter)197 static u32 technisat_usb2_i2c_func(struct i2c_adapter *adapter)
198 {
199 return I2C_FUNC_I2C;
200 }
201
202 static struct i2c_algorithm technisat_usb2_i2c_algo = {
203 .master_xfer = technisat_usb2_i2c_xfer,
204 .functionality = technisat_usb2_i2c_func,
205 };
206
207 #if 0
208 static void technisat_usb2_frontend_reset(struct usb_device *udev)
209 {
210 usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
211 SET_FRONT_END_RESET_VENDOR_REQUEST,
212 USB_TYPE_VENDOR | USB_DIR_OUT,
213 10, 0,
214 NULL, 0, 500);
215 }
216 #endif
217
218 /* LED control */
219 enum technisat_usb2_led_state {
220 TECH_LED_OFF,
221 TECH_LED_BLINK,
222 TECH_LED_ON,
223 TECH_LED_UNDEFINED
224 };
225
technisat_usb2_set_led(struct dvb_usb_device * d,int red,enum technisat_usb2_led_state st)226 static int technisat_usb2_set_led(struct dvb_usb_device *d, int red,
227 enum technisat_usb2_led_state st)
228 {
229 struct technisat_usb2_state *state = d->priv;
230 u8 *led = state->buf;
231 int ret;
232
233 led[0] = red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST;
234
235 if (disable_led_control && st != TECH_LED_OFF)
236 return 0;
237
238 switch (st) {
239 case TECH_LED_ON:
240 led[1] = 0x82;
241 break;
242 case TECH_LED_BLINK:
243 led[1] = 0x82;
244 if (red) {
245 led[2] = 0x02;
246 led[3] = 10;
247 led[4] = 10;
248 } else {
249 led[2] = 0xff;
250 led[3] = 50;
251 led[4] = 50;
252 }
253 led[5] = 1;
254 break;
255
256 default:
257 case TECH_LED_OFF:
258 led[1] = 0x80;
259 break;
260 }
261
262 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
263 return -EAGAIN;
264
265 ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
266 red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
267 USB_TYPE_VENDOR | USB_DIR_OUT,
268 0, 0,
269 led, 8, 500);
270
271 mutex_unlock(&d->i2c_mutex);
272 return ret;
273 }
274
technisat_usb2_set_led_timer(struct dvb_usb_device * d,u8 red,u8 green)275 static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 green)
276 {
277 struct technisat_usb2_state *state = d->priv;
278 u8 *b = state->buf;
279 int ret;
280
281 b[0] = 0;
282
283 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
284 return -EAGAIN;
285
286 ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
287 SET_LED_TIMER_DIVIDER_VENDOR_REQUEST,
288 USB_TYPE_VENDOR | USB_DIR_OUT,
289 (red << 8) | green, 0,
290 b, 1, 500);
291
292 mutex_unlock(&d->i2c_mutex);
293
294 return ret;
295 }
296
technisat_usb2_green_led_control(struct work_struct * work)297 static void technisat_usb2_green_led_control(struct work_struct *work)
298 {
299 struct technisat_usb2_state *state =
300 container_of(work, struct technisat_usb2_state, green_led_work.work);
301 struct dvb_frontend *fe = state->dev->adapter[0].fe_adap[0].fe;
302
303 if (state->power_state == 0)
304 goto schedule;
305
306 if (fe != NULL) {
307 enum fe_status status;
308
309 if (fe->ops.read_status(fe, &status) != 0)
310 goto schedule;
311
312 if (status & FE_HAS_LOCK) {
313 u32 ber;
314
315 if (fe->ops.read_ber(fe, &ber) != 0)
316 goto schedule;
317
318 if (ber > 1000)
319 technisat_usb2_set_led(state->dev, 0, TECH_LED_BLINK);
320 else
321 technisat_usb2_set_led(state->dev, 0, TECH_LED_ON);
322 } else
323 technisat_usb2_set_led(state->dev, 0, TECH_LED_OFF);
324 }
325
326 schedule:
327 schedule_delayed_work(&state->green_led_work,
328 msecs_to_jiffies(500));
329 }
330
331 /* method to find out whether the firmware has to be downloaded or not */
technisat_usb2_identify_state(struct usb_device * udev,const struct dvb_usb_device_properties * props,const struct dvb_usb_device_description ** desc,int * cold)332 static int technisat_usb2_identify_state(struct usb_device *udev,
333 const struct dvb_usb_device_properties *props,
334 const struct dvb_usb_device_description **desc, int *cold)
335 {
336 int ret;
337 u8 *version;
338
339 version = kmalloc(3, GFP_KERNEL);
340 if (!version)
341 return -ENOMEM;
342
343 /* first select the interface */
344 if (usb_set_interface(udev, 0, 1) != 0)
345 err("could not set alternate setting to 0");
346 else
347 info("set alternate setting");
348
349 *cold = 0; /* by default do not download a firmware - just in case something is wrong */
350
351 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
352 GET_VERSION_INFO_VENDOR_REQUEST,
353 USB_TYPE_VENDOR | USB_DIR_IN,
354 0, 0,
355 version, 3, 500);
356
357 if (ret < 0)
358 *cold = 1;
359 else {
360 info("firmware version: %d.%d", version[1], version[2]);
361 *cold = 0;
362 }
363
364 kfree(version);
365
366 return 0;
367 }
368
369 /* power control */
technisat_usb2_power_ctrl(struct dvb_usb_device * d,int level)370 static int technisat_usb2_power_ctrl(struct dvb_usb_device *d, int level)
371 {
372 struct technisat_usb2_state *state = d->priv;
373
374 state->power_state = level;
375
376 if (disable_led_control)
377 return 0;
378
379 /* green led is turned off in any case - will be turned on when tuning */
380 technisat_usb2_set_led(d, 0, TECH_LED_OFF);
381 /* red led is turned on all the time */
382 technisat_usb2_set_led(d, 1, TECH_LED_ON);
383 return 0;
384 }
385
386 /* mac address reading - from the eeprom */
387 #if 0
388 static void technisat_usb2_eeprom_dump(struct dvb_usb_device *d)
389 {
390 u8 reg;
391 u8 b[16];
392 int i, j;
393
394 /* full EEPROM dump */
395 for (j = 0; j < 256 * 4; j += 16) {
396 reg = j;
397 if (technisat_usb2_i2c_access(d->udev, 0x50 + j / 256, ®, 1, b, 16) != 0)
398 break;
399
400 deb_eeprom("EEPROM: %01x%02x: ", j / 256, reg);
401 for (i = 0; i < 16; i++)
402 deb_eeprom("%02x ", b[i]);
403 deb_eeprom("\n");
404 }
405 }
406 #endif
407
technisat_usb2_calc_lrc(const u8 * b,u16 length)408 static u8 technisat_usb2_calc_lrc(const u8 *b, u16 length)
409 {
410 u8 lrc = 0;
411 while (--length)
412 lrc ^= *b++;
413 return lrc;
414 }
415
technisat_usb2_eeprom_lrc_read(struct dvb_usb_device * d,u16 offset,u8 * b,u16 length,u8 tries)416 static int technisat_usb2_eeprom_lrc_read(struct dvb_usb_device *d,
417 u16 offset, u8 *b, u16 length, u8 tries)
418 {
419 u8 bo = offset & 0xff;
420 struct i2c_msg msg[] = {
421 {
422 .addr = 0x50 | ((offset >> 8) & 0x3),
423 .buf = &bo,
424 .len = 1
425 }, {
426 .addr = 0x50 | ((offset >> 8) & 0x3),
427 .flags = I2C_M_RD,
428 .buf = b,
429 .len = length
430 }
431 };
432
433 while (tries--) {
434 int status;
435
436 if (i2c_transfer(&d->i2c_adap, msg, 2) != 2)
437 break;
438
439 status =
440 technisat_usb2_calc_lrc(b, length - 1) == b[length - 1];
441
442 if (status)
443 return 0;
444 }
445
446 return -EREMOTEIO;
447 }
448
449 #define EEPROM_MAC_START 0x3f8
450 #define EEPROM_MAC_TOTAL 8
technisat_usb2_read_mac_address(struct dvb_usb_device * d,u8 mac[])451 static int technisat_usb2_read_mac_address(struct dvb_usb_device *d,
452 u8 mac[])
453 {
454 u8 buf[EEPROM_MAC_TOTAL];
455
456 if (technisat_usb2_eeprom_lrc_read(d, EEPROM_MAC_START,
457 buf, EEPROM_MAC_TOTAL, 4) != 0)
458 return -ENODEV;
459
460 memcpy(mac, buf, 6);
461 return 0;
462 }
463
464 static struct stv090x_config technisat_usb2_stv090x_config;
465
466 /* frontend attach */
technisat_usb2_set_voltage(struct dvb_frontend * fe,enum fe_sec_voltage voltage)467 static int technisat_usb2_set_voltage(struct dvb_frontend *fe,
468 enum fe_sec_voltage voltage)
469 {
470 int i;
471 u8 gpio[3] = { 0 }; /* 0 = 2, 1 = 3, 2 = 4 */
472
473 gpio[2] = 1; /* high - voltage ? */
474
475 switch (voltage) {
476 case SEC_VOLTAGE_13:
477 gpio[0] = 1;
478 break;
479 case SEC_VOLTAGE_18:
480 gpio[0] = 1;
481 gpio[1] = 1;
482 break;
483 default:
484 case SEC_VOLTAGE_OFF:
485 break;
486 }
487
488 for (i = 0; i < 3; i++)
489 if (technisat_usb2_stv090x_config.set_gpio(fe, i+2, 0,
490 gpio[i], 0) != 0)
491 return -EREMOTEIO;
492 return 0;
493 }
494
495 static struct stv090x_config technisat_usb2_stv090x_config = {
496 .device = STV0903,
497 .demod_mode = STV090x_SINGLE,
498 .clk_mode = STV090x_CLK_EXT,
499
500 .xtal = 8000000,
501 .address = 0x68,
502
503 .ts1_mode = STV090x_TSMODE_DVBCI,
504 .ts1_clk = 13400000,
505 .ts1_tei = 1,
506
507 .repeater_level = STV090x_RPTLEVEL_64,
508
509 .tuner_bbgain = 6,
510 };
511
512 static struct stv6110x_config technisat_usb2_stv6110x_config = {
513 .addr = 0x60,
514 .refclk = 16000000,
515 .clk_div = 2,
516 };
517
technisat_usb2_frontend_attach(struct dvb_usb_adapter * a)518 static int technisat_usb2_frontend_attach(struct dvb_usb_adapter *a)
519 {
520 struct usb_device *udev = a->dev->udev;
521 int ret;
522
523 a->fe_adap[0].fe = dvb_attach(stv090x_attach, &technisat_usb2_stv090x_config,
524 &a->dev->i2c_adap, STV090x_DEMODULATOR_0);
525
526 if (a->fe_adap[0].fe) {
527 const struct stv6110x_devctl *ctl;
528
529 ctl = dvb_attach(stv6110x_attach,
530 a->fe_adap[0].fe,
531 &technisat_usb2_stv6110x_config,
532 &a->dev->i2c_adap);
533
534 if (ctl) {
535 technisat_usb2_stv090x_config.tuner_init = ctl->tuner_init;
536 technisat_usb2_stv090x_config.tuner_sleep = ctl->tuner_sleep;
537 technisat_usb2_stv090x_config.tuner_set_mode = ctl->tuner_set_mode;
538 technisat_usb2_stv090x_config.tuner_set_frequency = ctl->tuner_set_frequency;
539 technisat_usb2_stv090x_config.tuner_get_frequency = ctl->tuner_get_frequency;
540 technisat_usb2_stv090x_config.tuner_set_bandwidth = ctl->tuner_set_bandwidth;
541 technisat_usb2_stv090x_config.tuner_get_bandwidth = ctl->tuner_get_bandwidth;
542 technisat_usb2_stv090x_config.tuner_set_bbgain = ctl->tuner_set_bbgain;
543 technisat_usb2_stv090x_config.tuner_get_bbgain = ctl->tuner_get_bbgain;
544 technisat_usb2_stv090x_config.tuner_set_refclk = ctl->tuner_set_refclk;
545 technisat_usb2_stv090x_config.tuner_get_status = ctl->tuner_get_status;
546
547 /* call the init function once to initialize
548 tuner's clock output divider and demod's
549 master clock */
550 if (a->fe_adap[0].fe->ops.init)
551 a->fe_adap[0].fe->ops.init(a->fe_adap[0].fe);
552
553 if (mutex_lock_interruptible(&a->dev->i2c_mutex) < 0)
554 return -EAGAIN;
555
556 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
557 SET_IFCLK_TO_EXTERNAL_TSCLK_VENDOR_REQUEST,
558 USB_TYPE_VENDOR | USB_DIR_OUT,
559 0, 0,
560 NULL, 0, 500);
561 mutex_unlock(&a->dev->i2c_mutex);
562
563 if (ret != 0)
564 err("could not set IF_CLK to external");
565
566 a->fe_adap[0].fe->ops.set_voltage = technisat_usb2_set_voltage;
567
568 /* if everything was successful assign a nice name to the frontend */
569 strscpy(a->fe_adap[0].fe->ops.info.name,
570 a->dev->desc->name,
571 sizeof(a->fe_adap[0].fe->ops.info.name));
572 } else {
573 dvb_frontend_detach(a->fe_adap[0].fe);
574 a->fe_adap[0].fe = NULL;
575 }
576 }
577
578 technisat_usb2_set_led_timer(a->dev, 1, 1);
579
580 return a->fe_adap[0].fe == NULL ? -ENODEV : 0;
581 }
582
583 /* Remote control */
584
585 /* the device is giving providing raw IR-signals to the host mapping
586 * it only to one remote control is just the default implementation
587 */
588 #define NOMINAL_IR_BIT_TRANSITION_TIME_US 889
589 #define NOMINAL_IR_BIT_TIME_US (2 * NOMINAL_IR_BIT_TRANSITION_TIME_US)
590
591 #define FIRMWARE_CLOCK_TICK 83333
592 #define FIRMWARE_CLOCK_DIVISOR 256
593
594 #define IR_PERCENT_TOLERANCE 15
595
596 #define NOMINAL_IR_BIT_TRANSITION_TICKS ((NOMINAL_IR_BIT_TRANSITION_TIME_US * 1000 * 1000) / FIRMWARE_CLOCK_TICK)
597 #define NOMINAL_IR_BIT_TRANSITION_TICK_COUNT (NOMINAL_IR_BIT_TRANSITION_TICKS / FIRMWARE_CLOCK_DIVISOR)
598
599 #define NOMINAL_IR_BIT_TIME_TICKS ((NOMINAL_IR_BIT_TIME_US * 1000 * 1000) / FIRMWARE_CLOCK_TICK)
600 #define NOMINAL_IR_BIT_TIME_TICK_COUNT (NOMINAL_IR_BIT_TIME_TICKS / FIRMWARE_CLOCK_DIVISOR)
601
602 #define MINIMUM_IR_BIT_TRANSITION_TICK_COUNT (NOMINAL_IR_BIT_TRANSITION_TICK_COUNT - ((NOMINAL_IR_BIT_TRANSITION_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100))
603 #define MAXIMUM_IR_BIT_TRANSITION_TICK_COUNT (NOMINAL_IR_BIT_TRANSITION_TICK_COUNT + ((NOMINAL_IR_BIT_TRANSITION_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100))
604
605 #define MINIMUM_IR_BIT_TIME_TICK_COUNT (NOMINAL_IR_BIT_TIME_TICK_COUNT - ((NOMINAL_IR_BIT_TIME_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100))
606 #define MAXIMUM_IR_BIT_TIME_TICK_COUNT (NOMINAL_IR_BIT_TIME_TICK_COUNT + ((NOMINAL_IR_BIT_TIME_TICK_COUNT * IR_PERCENT_TOLERANCE) / 100))
607
technisat_usb2_get_ir(struct dvb_usb_device * d)608 static int technisat_usb2_get_ir(struct dvb_usb_device *d)
609 {
610 struct technisat_usb2_state *state = d->priv;
611 struct ir_raw_event ev;
612 u8 *buf = state->buf;
613 int i, ret;
614
615 buf[0] = GET_IR_DATA_VENDOR_REQUEST;
616 buf[1] = 0x08;
617 buf[2] = 0x8f;
618 buf[3] = MINIMUM_IR_BIT_TRANSITION_TICK_COUNT;
619 buf[4] = MAXIMUM_IR_BIT_TIME_TICK_COUNT;
620
621 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
622 return -EAGAIN;
623 ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
624 GET_IR_DATA_VENDOR_REQUEST,
625 USB_TYPE_VENDOR | USB_DIR_OUT,
626 0, 0,
627 buf, 5, 500);
628 if (ret < 0)
629 goto unlock;
630
631 buf[1] = 0;
632 buf[2] = 0;
633 ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0),
634 GET_IR_DATA_VENDOR_REQUEST,
635 USB_TYPE_VENDOR | USB_DIR_IN,
636 0x8080, 0,
637 buf, 62, 500);
638
639 unlock:
640 mutex_unlock(&d->i2c_mutex);
641
642 if (ret < 0)
643 return ret;
644
645 if (ret == 1)
646 return 0; /* no key pressed */
647
648 /* decoding */
649
650 #if 0
651 deb_rc("RC: %d ", ret);
652 debug_dump(buf + 1, ret, deb_rc);
653 #endif
654
655 ev.pulse = 0;
656 for (i = 1; i < ARRAY_SIZE(state->buf); i++) {
657 if (buf[i] == 0xff) {
658 ev.pulse = 0;
659 ev.duration = 889 * 2;
660 ir_raw_event_store(d->rc_dev, &ev);
661 break;
662 }
663
664 ev.pulse = !ev.pulse;
665 ev.duration = (buf[i] * FIRMWARE_CLOCK_DIVISOR *
666 FIRMWARE_CLOCK_TICK) / (1000 * 1000);
667 ir_raw_event_store(d->rc_dev, &ev);
668 }
669
670 ir_raw_event_handle(d->rc_dev);
671
672 return 1;
673 }
674
technisat_usb2_rc_query(struct dvb_usb_device * d)675 static int technisat_usb2_rc_query(struct dvb_usb_device *d)
676 {
677 int ret = technisat_usb2_get_ir(d);
678
679 if (ret < 0)
680 return ret;
681
682 if (ret == 0)
683 return 0;
684
685 if (!disable_led_control)
686 technisat_usb2_set_led(d, 1, TECH_LED_BLINK);
687
688 return 0;
689 }
690
691 /* DVB-USB and USB stuff follows */
692 enum {
693 TECHNISAT_USB2_DVB_S2,
694 };
695
696 static struct usb_device_id technisat_usb2_id_table[] = {
697 DVB_USB_DEV(TECHNISAT, TECHNISAT_USB2_DVB_S2),
698 { }
699 };
700
701 MODULE_DEVICE_TABLE(usb, technisat_usb2_id_table);
702
703 /* device description */
704 static struct dvb_usb_device_properties technisat_usb2_devices = {
705 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
706
707 .usb_ctrl = CYPRESS_FX2,
708
709 .identify_state = technisat_usb2_identify_state,
710 .firmware = "dvb-usb-SkyStar_USB_HD_FW_v17_63.HEX.fw",
711
712 .size_of_priv = sizeof(struct technisat_usb2_state),
713
714 .i2c_algo = &technisat_usb2_i2c_algo,
715
716 .power_ctrl = technisat_usb2_power_ctrl,
717 .read_mac_address = technisat_usb2_read_mac_address,
718
719 .num_adapters = 1,
720 .adapter = {
721 {
722 .num_frontends = 1,
723 .fe = {{
724 .frontend_attach = technisat_usb2_frontend_attach,
725
726 .stream = {
727 .type = USB_ISOC,
728 .count = 4,
729 .endpoint = 0x2,
730 .u = {
731 .isoc = {
732 .framesperurb = 32,
733 .framesize = 2048,
734 .interval = 1,
735 }
736 }
737 },
738 }},
739 .size_of_priv = 0,
740 },
741 },
742
743 .num_device_descs = 1,
744 .devices = {
745 { "Technisat SkyStar USB HD (DVB-S/S2)",
746 { &technisat_usb2_id_table[TECHNISAT_USB2_DVB_S2], NULL },
747 { NULL },
748 },
749 },
750
751 .rc.core = {
752 .rc_interval = 100,
753 .rc_codes = RC_MAP_TECHNISAT_USB2,
754 .module_name = "technisat-usb2",
755 .rc_query = technisat_usb2_rc_query,
756 .allowed_protos = RC_PROTO_BIT_ALL_IR_DECODER,
757 .driver_type = RC_DRIVER_IR_RAW,
758 }
759 };
760
technisat_usb2_probe(struct usb_interface * intf,const struct usb_device_id * id)761 static int technisat_usb2_probe(struct usb_interface *intf,
762 const struct usb_device_id *id)
763 {
764 struct dvb_usb_device *dev;
765
766 if (dvb_usb_device_init(intf, &technisat_usb2_devices, THIS_MODULE,
767 &dev, adapter_nr) != 0)
768 return -ENODEV;
769
770 if (dev) {
771 struct technisat_usb2_state *state = dev->priv;
772 state->dev = dev;
773
774 if (!disable_led_control) {
775 INIT_DELAYED_WORK(&state->green_led_work,
776 technisat_usb2_green_led_control);
777 schedule_delayed_work(&state->green_led_work,
778 msecs_to_jiffies(500));
779 }
780 }
781
782 return 0;
783 }
784
technisat_usb2_disconnect(struct usb_interface * intf)785 static void technisat_usb2_disconnect(struct usb_interface *intf)
786 {
787 struct dvb_usb_device *dev = usb_get_intfdata(intf);
788
789 /* work and stuff was only created when the device is hot-state */
790 if (dev != NULL) {
791 struct technisat_usb2_state *state = dev->priv;
792 if (state != NULL)
793 cancel_delayed_work_sync(&state->green_led_work);
794 }
795
796 dvb_usb_device_exit(intf);
797 }
798
799 static struct usb_driver technisat_usb2_driver = {
800 .name = "dvb_usb_technisat_usb2",
801 .probe = technisat_usb2_probe,
802 .disconnect = technisat_usb2_disconnect,
803 .id_table = technisat_usb2_id_table,
804 };
805
806 module_usb_driver(technisat_usb2_driver);
807
808 MODULE_AUTHOR("Patrick Boettcher <pboettcher@kernellabs.com>");
809 MODULE_DESCRIPTION("Driver for Technisat DVB-S/S2 USB 2.0 device");
810 MODULE_VERSION("1.0");
811 MODULE_LICENSE("GPL");
812