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 | |
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(size: 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(usb_dev: udev, |
119 | usb_sndbulkpipe(udev, 0x01), |
120 | data: b, len: 2 + txlen, |
121 | NULL, timeout: 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(usb_dev: udev, |
129 | usb_rcvbulkpipe(udev, 0x01), |
130 | data: b, len: 64, actual_length: &actual_length, timeout: 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(objp: b); |
158 | return ret; |
159 | } |
160 | |
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(udev: d->udev, device_addr: msg[i+1].addr, |
175 | tx: msg[i].buf, txlen: msg[i].len, |
176 | rx: msg[i+1].buf, rxlen: msg[i+1].len); |
177 | if (ret != 0) |
178 | break; |
179 | i++; |
180 | } else { |
181 | ret = technisat_usb2_i2c_access(udev: d->udev, device_addr: msg[i].addr, |
182 | tx: msg[i].buf, txlen: msg[i].len, |
183 | NULL, rxlen: 0); |
184 | if (ret != 0) |
185 | break; |
186 | } |
187 | } |
188 | |
189 | if (ret == 0) |
190 | ret = i; |
191 | |
192 | mutex_unlock(lock: &d->i2c_mutex); |
193 | |
194 | return ret; |
195 | } |
196 | |
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 | |
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(dev: d->udev, usb_sndctrlpipe(d->udev, 0), |
266 | request: red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST, |
267 | USB_TYPE_VENDOR | USB_DIR_OUT, |
268 | value: 0, index: 0, |
269 | data: led, size: 8, timeout: 500); |
270 | |
271 | mutex_unlock(lock: &d->i2c_mutex); |
272 | return ret; |
273 | } |
274 | |
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(dev: d->udev, usb_sndctrlpipe(d->udev, 0), |
287 | SET_LED_TIMER_DIVIDER_VENDOR_REQUEST, |
288 | USB_TYPE_VENDOR | USB_DIR_OUT, |
289 | value: (red << 8) | green, index: 0, |
290 | data: b, size: 1, timeout: 500); |
291 | |
292 | mutex_unlock(lock: &d->i2c_mutex); |
293 | |
294 | return ret; |
295 | } |
296 | |
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(d: state->dev, red: 0, st: TECH_LED_BLINK); |
320 | else |
321 | technisat_usb2_set_led(d: state->dev, red: 0, st: TECH_LED_ON); |
322 | } else |
323 | technisat_usb2_set_led(d: state->dev, red: 0, st: TECH_LED_OFF); |
324 | } |
325 | |
326 | schedule: |
327 | schedule_delayed_work(dwork: &state->green_led_work, |
328 | delay: msecs_to_jiffies(m: 500)); |
329 | } |
330 | |
331 | /* method to find out whether the firmware has to be downloaded or not */ |
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(size: 3, GFP_KERNEL); |
340 | if (!version) |
341 | return -ENOMEM; |
342 | |
343 | /* first select the interface */ |
344 | if (usb_set_interface(dev: udev, ifnum: 0, alternate: 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(dev: udev, usb_rcvctrlpipe(udev, 0), |
352 | GET_VERSION_INFO_VENDOR_REQUEST, |
353 | USB_TYPE_VENDOR | USB_DIR_IN, |
354 | value: 0, index: 0, |
355 | data: version, size: 3, timeout: 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(objp: version); |
365 | |
366 | return 0; |
367 | } |
368 | |
369 | /* power control */ |
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, red: 0, st: TECH_LED_OFF); |
381 | /* red led is turned on all the time */ |
382 | technisat_usb2_set_led(d, red: 1, st: 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 | |
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 | |
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(adap: &d->i2c_adap, msgs: msg, num: 2) != 2) |
437 | break; |
438 | |
439 | status = |
440 | technisat_usb2_calc_lrc(b, length: 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 |
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 | b: buf, EEPROM_MAC_TOTAL, tries: 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 */ |
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 | |
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(dev: udev, usb_sndctrlpipe(udev, 0), |
557 | SET_IFCLK_TO_EXTERNAL_TSCLK_VENDOR_REQUEST, |
558 | USB_TYPE_VENDOR | USB_DIR_OUT, |
559 | value: 0, index: 0, |
560 | NULL, size: 0, timeout: 500); |
561 | mutex_unlock(lock: &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(fe: a->fe_adap[0].fe); |
574 | a->fe_adap[0].fe = NULL; |
575 | } |
576 | } |
577 | |
578 | technisat_usb2_set_led_timer(d: a->dev, red: 1, green: 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 | |
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(dev: d->udev, usb_sndctrlpipe(d->udev, 0), |
624 | GET_IR_DATA_VENDOR_REQUEST, |
625 | USB_TYPE_VENDOR | USB_DIR_OUT, |
626 | value: 0, index: 0, |
627 | data: buf, size: 5, timeout: 500); |
628 | if (ret < 0) |
629 | goto unlock; |
630 | |
631 | buf[1] = 0; |
632 | buf[2] = 0; |
633 | ret = usb_control_msg(dev: d->udev, usb_rcvctrlpipe(d->udev, 0), |
634 | GET_IR_DATA_VENDOR_REQUEST, |
635 | USB_TYPE_VENDOR | USB_DIR_IN, |
636 | value: 0x8080, index: 0, |
637 | data: buf, size: 62, timeout: 500); |
638 | |
639 | unlock: |
640 | mutex_unlock(lock: &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(dev: d->rc_dev, ev: &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(dev: d->rc_dev, ev: &ev); |
668 | } |
669 | |
670 | ir_raw_event_handle(dev: d->rc_dev); |
671 | |
672 | return 1; |
673 | } |
674 | |
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, red: 1, st: 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 | |
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_nums: 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(dwork: &state->green_led_work, |
778 | delay: msecs_to_jiffies(m: 500)); |
779 | } |
780 | } |
781 | |
782 | return 0; |
783 | } |
784 | |
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(dwork: &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 | |