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Commit | Line | Data |
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1 | /* | |
2 | Conexant 22702 DVB OFDM demodulator driver | |
3 | ||
4 | based on: | |
5 | Alps TDMB7 DVB OFDM demodulator driver | |
6 | ||
7 | Copyright (C) 2001-2002 Convergence Integrated Media GmbH | |
8 | Holger Waechtler <holger@convergence.de> | |
9 | ||
10 | Copyright (C) 2004 Steven Toth <stoth@linuxtv.org> | |
11 | ||
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | ||
26 | */ | |
27 | ||
28 | #include <linux/kernel.h> | |
29 | #include <linux/init.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/string.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/delay.h> | |
34 | #include "dvb_frontend.h" | |
35 | #include "cx22702.h" | |
36 | ||
37 | struct cx22702_state { | |
38 | ||
39 | struct i2c_adapter *i2c; | |
40 | ||
41 | /* configuration settings */ | |
42 | const struct cx22702_config *config; | |
43 | ||
44 | struct dvb_frontend frontend; | |
45 | ||
46 | /* previous uncorrected block counter */ | |
47 | u8 prevUCBlocks; | |
48 | }; | |
49 | ||
50 | static int debug; | |
51 | module_param(debug, int, 0644); | |
52 | MODULE_PARM_DESC(debug, "Enable verbose debug messages"); | |
53 | ||
54 | #define dprintk if (debug) printk | |
55 | ||
56 | /* Register values to initialise the demod */ | |
57 | static const u8 init_tab[] = { | |
58 | 0x00, 0x00, /* Stop acquisition */ | |
59 | 0x0B, 0x06, | |
60 | 0x09, 0x01, | |
61 | 0x0D, 0x41, | |
62 | 0x16, 0x32, | |
63 | 0x20, 0x0A, | |
64 | 0x21, 0x17, | |
65 | 0x24, 0x3e, | |
66 | 0x26, 0xff, | |
67 | 0x27, 0x10, | |
68 | 0x28, 0x00, | |
69 | 0x29, 0x00, | |
70 | 0x2a, 0x10, | |
71 | 0x2b, 0x00, | |
72 | 0x2c, 0x10, | |
73 | 0x2d, 0x00, | |
74 | 0x48, 0xd4, | |
75 | 0x49, 0x56, | |
76 | 0x6b, 0x1e, | |
77 | 0xc8, 0x02, | |
78 | 0xf9, 0x00, | |
79 | 0xfa, 0x00, | |
80 | 0xfb, 0x00, | |
81 | 0xfc, 0x00, | |
82 | 0xfd, 0x00, | |
83 | }; | |
84 | ||
85 | static int cx22702_writereg(struct cx22702_state *state, u8 reg, u8 data) | |
86 | { | |
87 | int ret; | |
88 | u8 buf[] = { reg, data }; | |
89 | struct i2c_msg msg = { | |
90 | .addr = state->config->demod_address, .flags = 0, | |
91 | .buf = buf, .len = 2 }; | |
92 | ||
93 | ret = i2c_transfer(state->i2c, &msg, 1); | |
94 | ||
95 | if (unlikely(ret != 1)) { | |
96 | printk(KERN_ERR | |
97 | "%s: error (reg == 0x%02x, val == 0x%02x, ret == %i)\n", | |
98 | __func__, reg, data, ret); | |
99 | return -1; | |
100 | } | |
101 | ||
102 | return 0; | |
103 | } | |
104 | ||
105 | static u8 cx22702_readreg(struct cx22702_state *state, u8 reg) | |
106 | { | |
107 | int ret; | |
108 | u8 data; | |
109 | ||
110 | struct i2c_msg msg[] = { | |
111 | { .addr = state->config->demod_address, .flags = 0, | |
112 | .buf = ®, .len = 1 }, | |
113 | { .addr = state->config->demod_address, .flags = I2C_M_RD, | |
114 | .buf = &data, .len = 1 } }; | |
115 | ||
116 | ret = i2c_transfer(state->i2c, msg, 2); | |
117 | ||
118 | if (unlikely(ret != 2)) { | |
119 | printk(KERN_ERR "%s: error (reg == 0x%02x, ret == %i)\n", | |
120 | __func__, reg, ret); | |
121 | return 0; | |
122 | } | |
123 | ||
124 | return data; | |
125 | } | |
126 | ||
127 | static int cx22702_set_inversion(struct cx22702_state *state, int inversion) | |
128 | { | |
129 | u8 val; | |
130 | ||
131 | val = cx22702_readreg(state, 0x0C); | |
132 | switch (inversion) { | |
133 | case INVERSION_AUTO: | |
134 | return -EOPNOTSUPP; | |
135 | case INVERSION_ON: | |
136 | val |= 0x01; | |
137 | break; | |
138 | case INVERSION_OFF: | |
139 | val &= 0xfe; | |
140 | break; | |
141 | default: | |
142 | return -EINVAL; | |
143 | } | |
144 | return cx22702_writereg(state, 0x0C, val); | |
145 | } | |
146 | ||
147 | /* Retrieve the demod settings */ | |
148 | static int cx22702_get_tps(struct cx22702_state *state, | |
149 | struct dtv_frontend_properties *p) | |
150 | { | |
151 | u8 val; | |
152 | ||
153 | /* Make sure the TPS regs are valid */ | |
154 | if (!(cx22702_readreg(state, 0x0A) & 0x20)) | |
155 | return -EAGAIN; | |
156 | ||
157 | val = cx22702_readreg(state, 0x01); | |
158 | switch ((val & 0x18) >> 3) { | |
159 | case 0: | |
160 | p->modulation = QPSK; | |
161 | break; | |
162 | case 1: | |
163 | p->modulation = QAM_16; | |
164 | break; | |
165 | case 2: | |
166 | p->modulation = QAM_64; | |
167 | break; | |
168 | } | |
169 | switch (val & 0x07) { | |
170 | case 0: | |
171 | p->hierarchy = HIERARCHY_NONE; | |
172 | break; | |
173 | case 1: | |
174 | p->hierarchy = HIERARCHY_1; | |
175 | break; | |
176 | case 2: | |
177 | p->hierarchy = HIERARCHY_2; | |
178 | break; | |
179 | case 3: | |
180 | p->hierarchy = HIERARCHY_4; | |
181 | break; | |
182 | } | |
183 | ||
184 | ||
185 | val = cx22702_readreg(state, 0x02); | |
186 | switch ((val & 0x38) >> 3) { | |
187 | case 0: | |
188 | p->code_rate_HP = FEC_1_2; | |
189 | break; | |
190 | case 1: | |
191 | p->code_rate_HP = FEC_2_3; | |
192 | break; | |
193 | case 2: | |
194 | p->code_rate_HP = FEC_3_4; | |
195 | break; | |
196 | case 3: | |
197 | p->code_rate_HP = FEC_5_6; | |
198 | break; | |
199 | case 4: | |
200 | p->code_rate_HP = FEC_7_8; | |
201 | break; | |
202 | } | |
203 | switch (val & 0x07) { | |
204 | case 0: | |
205 | p->code_rate_LP = FEC_1_2; | |
206 | break; | |
207 | case 1: | |
208 | p->code_rate_LP = FEC_2_3; | |
209 | break; | |
210 | case 2: | |
211 | p->code_rate_LP = FEC_3_4; | |
212 | break; | |
213 | case 3: | |
214 | p->code_rate_LP = FEC_5_6; | |
215 | break; | |
216 | case 4: | |
217 | p->code_rate_LP = FEC_7_8; | |
218 | break; | |
219 | } | |
220 | ||
221 | val = cx22702_readreg(state, 0x03); | |
222 | switch ((val & 0x0c) >> 2) { | |
223 | case 0: | |
224 | p->guard_interval = GUARD_INTERVAL_1_32; | |
225 | break; | |
226 | case 1: | |
227 | p->guard_interval = GUARD_INTERVAL_1_16; | |
228 | break; | |
229 | case 2: | |
230 | p->guard_interval = GUARD_INTERVAL_1_8; | |
231 | break; | |
232 | case 3: | |
233 | p->guard_interval = GUARD_INTERVAL_1_4; | |
234 | break; | |
235 | } | |
236 | switch (val & 0x03) { | |
237 | case 0: | |
238 | p->transmission_mode = TRANSMISSION_MODE_2K; | |
239 | break; | |
240 | case 1: | |
241 | p->transmission_mode = TRANSMISSION_MODE_8K; | |
242 | break; | |
243 | } | |
244 | ||
245 | return 0; | |
246 | } | |
247 | ||
248 | static int cx22702_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) | |
249 | { | |
250 | struct cx22702_state *state = fe->demodulator_priv; | |
251 | u8 val; | |
252 | ||
253 | dprintk("%s(%d)\n", __func__, enable); | |
254 | val = cx22702_readreg(state, 0x0D); | |
255 | if (enable) | |
256 | val &= 0xfe; | |
257 | else | |
258 | val |= 0x01; | |
259 | return cx22702_writereg(state, 0x0D, val); | |
260 | } | |
261 | ||
262 | /* Talk to the demod, set the FEC, GUARD, QAM settings etc */ | |
263 | static int cx22702_set_tps(struct dvb_frontend *fe) | |
264 | { | |
265 | struct dtv_frontend_properties *p = &fe->dtv_property_cache; | |
266 | u8 val; | |
267 | struct cx22702_state *state = fe->demodulator_priv; | |
268 | ||
269 | if (fe->ops.tuner_ops.set_params) { | |
270 | fe->ops.tuner_ops.set_params(fe); | |
271 | if (fe->ops.i2c_gate_ctrl) | |
272 | fe->ops.i2c_gate_ctrl(fe, 0); | |
273 | } | |
274 | ||
275 | /* set inversion */ | |
276 | cx22702_set_inversion(state, p->inversion); | |
277 | ||
278 | /* set bandwidth */ | |
279 | val = cx22702_readreg(state, 0x0C) & 0xcf; | |
280 | switch (p->bandwidth_hz) { | |
281 | case 6000000: | |
282 | val |= 0x20; | |
283 | break; | |
284 | case 7000000: | |
285 | val |= 0x10; | |
286 | break; | |
287 | case 8000000: | |
288 | break; | |
289 | default: | |
290 | dprintk("%s: invalid bandwidth\n", __func__); | |
291 | return -EINVAL; | |
292 | } | |
293 | cx22702_writereg(state, 0x0C, val); | |
294 | ||
295 | p->code_rate_LP = FEC_AUTO; /* temp hack as manual not working */ | |
296 | ||
297 | /* use auto configuration? */ | |
298 | if ((p->hierarchy == HIERARCHY_AUTO) || | |
299 | (p->modulation == QAM_AUTO) || | |
300 | (p->code_rate_HP == FEC_AUTO) || | |
301 | (p->code_rate_LP == FEC_AUTO) || | |
302 | (p->guard_interval == GUARD_INTERVAL_AUTO) || | |
303 | (p->transmission_mode == TRANSMISSION_MODE_AUTO)) { | |
304 | ||
305 | /* TPS Source - use hardware driven values */ | |
306 | cx22702_writereg(state, 0x06, 0x10); | |
307 | cx22702_writereg(state, 0x07, 0x9); | |
308 | cx22702_writereg(state, 0x08, 0xC1); | |
309 | cx22702_writereg(state, 0x0B, cx22702_readreg(state, 0x0B) | |
310 | & 0xfc); | |
311 | cx22702_writereg(state, 0x0C, | |
312 | (cx22702_readreg(state, 0x0C) & 0xBF) | 0x40); | |
313 | cx22702_writereg(state, 0x00, 0x01); /* Begin acquisition */ | |
314 | dprintk("%s: Autodetecting\n", __func__); | |
315 | return 0; | |
316 | } | |
317 | ||
318 | /* manually programmed values */ | |
319 | switch (p->modulation) { /* mask 0x18 */ | |
320 | case QPSK: | |
321 | val = 0x00; | |
322 | break; | |
323 | case QAM_16: | |
324 | val = 0x08; | |
325 | break; | |
326 | case QAM_64: | |
327 | val = 0x10; | |
328 | break; | |
329 | default: | |
330 | dprintk("%s: invalid modulation\n", __func__); | |
331 | return -EINVAL; | |
332 | } | |
333 | switch (p->hierarchy) { /* mask 0x07 */ | |
334 | case HIERARCHY_NONE: | |
335 | break; | |
336 | case HIERARCHY_1: | |
337 | val |= 0x01; | |
338 | break; | |
339 | case HIERARCHY_2: | |
340 | val |= 0x02; | |
341 | break; | |
342 | case HIERARCHY_4: | |
343 | val |= 0x03; | |
344 | break; | |
345 | default: | |
346 | dprintk("%s: invalid hierarchy\n", __func__); | |
347 | return -EINVAL; | |
348 | } | |
349 | cx22702_writereg(state, 0x06, val); | |
350 | ||
351 | switch (p->code_rate_HP) { /* mask 0x38 */ | |
352 | case FEC_NONE: | |
353 | case FEC_1_2: | |
354 | val = 0x00; | |
355 | break; | |
356 | case FEC_2_3: | |
357 | val = 0x08; | |
358 | break; | |
359 | case FEC_3_4: | |
360 | val = 0x10; | |
361 | break; | |
362 | case FEC_5_6: | |
363 | val = 0x18; | |
364 | break; | |
365 | case FEC_7_8: | |
366 | val = 0x20; | |
367 | break; | |
368 | default: | |
369 | dprintk("%s: invalid code_rate_HP\n", __func__); | |
370 | return -EINVAL; | |
371 | } | |
372 | switch (p->code_rate_LP) { /* mask 0x07 */ | |
373 | case FEC_NONE: | |
374 | case FEC_1_2: | |
375 | break; | |
376 | case FEC_2_3: | |
377 | val |= 0x01; | |
378 | break; | |
379 | case FEC_3_4: | |
380 | val |= 0x02; | |
381 | break; | |
382 | case FEC_5_6: | |
383 | val |= 0x03; | |
384 | break; | |
385 | case FEC_7_8: | |
386 | val |= 0x04; | |
387 | break; | |
388 | default: | |
389 | dprintk("%s: invalid code_rate_LP\n", __func__); | |
390 | return -EINVAL; | |
391 | } | |
392 | cx22702_writereg(state, 0x07, val); | |
393 | ||
394 | switch (p->guard_interval) { /* mask 0x0c */ | |
395 | case GUARD_INTERVAL_1_32: | |
396 | val = 0x00; | |
397 | break; | |
398 | case GUARD_INTERVAL_1_16: | |
399 | val = 0x04; | |
400 | break; | |
401 | case GUARD_INTERVAL_1_8: | |
402 | val = 0x08; | |
403 | break; | |
404 | case GUARD_INTERVAL_1_4: | |
405 | val = 0x0c; | |
406 | break; | |
407 | default: | |
408 | dprintk("%s: invalid guard_interval\n", __func__); | |
409 | return -EINVAL; | |
410 | } | |
411 | switch (p->transmission_mode) { /* mask 0x03 */ | |
412 | case TRANSMISSION_MODE_2K: | |
413 | break; | |
414 | case TRANSMISSION_MODE_8K: | |
415 | val |= 0x1; | |
416 | break; | |
417 | default: | |
418 | dprintk("%s: invalid transmission_mode\n", __func__); | |
419 | return -EINVAL; | |
420 | } | |
421 | cx22702_writereg(state, 0x08, val); | |
422 | cx22702_writereg(state, 0x0B, | |
423 | (cx22702_readreg(state, 0x0B) & 0xfc) | 0x02); | |
424 | cx22702_writereg(state, 0x0C, | |
425 | (cx22702_readreg(state, 0x0C) & 0xBF) | 0x40); | |
426 | ||
427 | /* Begin channel acquisition */ | |
428 | cx22702_writereg(state, 0x00, 0x01); | |
429 | ||
430 | return 0; | |
431 | } | |
432 | ||
433 | /* Reset the demod hardware and reset all of the configuration registers | |
434 | to a default state. */ | |
435 | static int cx22702_init(struct dvb_frontend *fe) | |
436 | { | |
437 | int i; | |
438 | struct cx22702_state *state = fe->demodulator_priv; | |
439 | ||
440 | cx22702_writereg(state, 0x00, 0x02); | |
441 | ||
442 | msleep(10); | |
443 | ||
444 | for (i = 0; i < ARRAY_SIZE(init_tab); i += 2) | |
445 | cx22702_writereg(state, init_tab[i], init_tab[i + 1]); | |
446 | ||
447 | cx22702_writereg(state, 0xf8, (state->config->output_mode << 1) | |
448 | & 0x02); | |
449 | ||
450 | cx22702_i2c_gate_ctrl(fe, 0); | |
451 | ||
452 | return 0; | |
453 | } | |
454 | ||
455 | static int cx22702_read_status(struct dvb_frontend *fe, fe_status_t *status) | |
456 | { | |
457 | struct cx22702_state *state = fe->demodulator_priv; | |
458 | u8 reg0A; | |
459 | u8 reg23; | |
460 | ||
461 | *status = 0; | |
462 | ||
463 | reg0A = cx22702_readreg(state, 0x0A); | |
464 | reg23 = cx22702_readreg(state, 0x23); | |
465 | ||
466 | dprintk("%s: status demod=0x%02x agc=0x%02x\n" | |
467 | , __func__, reg0A, reg23); | |
468 | ||
469 | if (reg0A & 0x10) { | |
470 | *status |= FE_HAS_LOCK; | |
471 | *status |= FE_HAS_VITERBI; | |
472 | *status |= FE_HAS_SYNC; | |
473 | } | |
474 | ||
475 | if (reg0A & 0x20) | |
476 | *status |= FE_HAS_CARRIER; | |
477 | ||
478 | if (reg23 < 0xf0) | |
479 | *status |= FE_HAS_SIGNAL; | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
484 | static int cx22702_read_ber(struct dvb_frontend *fe, u32 *ber) | |
485 | { | |
486 | struct cx22702_state *state = fe->demodulator_priv; | |
487 | ||
488 | if (cx22702_readreg(state, 0xE4) & 0x02) { | |
489 | /* Realtime statistics */ | |
490 | *ber = (cx22702_readreg(state, 0xDE) & 0x7F) << 7 | |
491 | | (cx22702_readreg(state, 0xDF) & 0x7F); | |
492 | } else { | |
493 | /* Averagtine statistics */ | |
494 | *ber = (cx22702_readreg(state, 0xDE) & 0x7F) << 7 | |
495 | | cx22702_readreg(state, 0xDF); | |
496 | } | |
497 | ||
498 | return 0; | |
499 | } | |
500 | ||
501 | static int cx22702_read_signal_strength(struct dvb_frontend *fe, | |
502 | u16 *signal_strength) | |
503 | { | |
504 | struct cx22702_state *state = fe->demodulator_priv; | |
505 | ||
506 | u16 rs_ber; | |
507 | rs_ber = cx22702_readreg(state, 0x23); | |
508 | *signal_strength = (rs_ber << 8) | rs_ber; | |
509 | ||
510 | return 0; | |
511 | } | |
512 | ||
513 | static int cx22702_read_snr(struct dvb_frontend *fe, u16 *snr) | |
514 | { | |
515 | struct cx22702_state *state = fe->demodulator_priv; | |
516 | ||
517 | u16 rs_ber; | |
518 | if (cx22702_readreg(state, 0xE4) & 0x02) { | |
519 | /* Realtime statistics */ | |
520 | rs_ber = (cx22702_readreg(state, 0xDE) & 0x7F) << 7 | |
521 | | (cx22702_readreg(state, 0xDF) & 0x7F); | |
522 | } else { | |
523 | /* Averagine statistics */ | |
524 | rs_ber = (cx22702_readreg(state, 0xDE) & 0x7F) << 8 | |
525 | | cx22702_readreg(state, 0xDF); | |
526 | } | |
527 | *snr = ~rs_ber; | |
528 | ||
529 | return 0; | |
530 | } | |
531 | ||
532 | static int cx22702_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) | |
533 | { | |
534 | struct cx22702_state *state = fe->demodulator_priv; | |
535 | ||
536 | u8 _ucblocks; | |
537 | ||
538 | /* RS Uncorrectable Packet Count then reset */ | |
539 | _ucblocks = cx22702_readreg(state, 0xE3); | |
540 | if (state->prevUCBlocks < _ucblocks) | |
541 | *ucblocks = (_ucblocks - state->prevUCBlocks); | |
542 | else | |
543 | *ucblocks = state->prevUCBlocks - _ucblocks; | |
544 | state->prevUCBlocks = _ucblocks; | |
545 | ||
546 | return 0; | |
547 | } | |
548 | ||
549 | static int cx22702_get_frontend(struct dvb_frontend *fe, | |
550 | struct dtv_frontend_properties *c) | |
551 | { | |
552 | struct cx22702_state *state = fe->demodulator_priv; | |
553 | ||
554 | u8 reg0C = cx22702_readreg(state, 0x0C); | |
555 | ||
556 | c->inversion = reg0C & 0x1 ? INVERSION_ON : INVERSION_OFF; | |
557 | return cx22702_get_tps(state, c); | |
558 | } | |
559 | ||
560 | static int cx22702_get_tune_settings(struct dvb_frontend *fe, | |
561 | struct dvb_frontend_tune_settings *tune) | |
562 | { | |
563 | tune->min_delay_ms = 1000; | |
564 | return 0; | |
565 | } | |
566 | ||
567 | static void cx22702_release(struct dvb_frontend *fe) | |
568 | { | |
569 | struct cx22702_state *state = fe->demodulator_priv; | |
570 | kfree(state); | |
571 | } | |
572 | ||
573 | static const struct dvb_frontend_ops cx22702_ops; | |
574 | ||
575 | struct dvb_frontend *cx22702_attach(const struct cx22702_config *config, | |
576 | struct i2c_adapter *i2c) | |
577 | { | |
578 | struct cx22702_state *state = NULL; | |
579 | ||
580 | /* allocate memory for the internal state */ | |
581 | state = kzalloc(sizeof(struct cx22702_state), GFP_KERNEL); | |
582 | if (state == NULL) | |
583 | goto error; | |
584 | ||
585 | /* setup the state */ | |
586 | state->config = config; | |
587 | state->i2c = i2c; | |
588 | ||
589 | /* check if the demod is there */ | |
590 | if (cx22702_readreg(state, 0x1f) != 0x3) | |
591 | goto error; | |
592 | ||
593 | /* create dvb_frontend */ | |
594 | memcpy(&state->frontend.ops, &cx22702_ops, | |
595 | sizeof(struct dvb_frontend_ops)); | |
596 | state->frontend.demodulator_priv = state; | |
597 | return &state->frontend; | |
598 | ||
599 | error: | |
600 | kfree(state); | |
601 | return NULL; | |
602 | } | |
603 | EXPORT_SYMBOL(cx22702_attach); | |
604 | ||
605 | static const struct dvb_frontend_ops cx22702_ops = { | |
606 | .delsys = { SYS_DVBT }, | |
607 | .info = { | |
608 | .name = "Conexant CX22702 DVB-T", | |
609 | .type = FE_OFDM, | |
610 | .frequency_min = 177000000, | |
611 | .frequency_max = 858000000, | |
612 | .frequency_stepsize = 166666, | |
613 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
614 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
615 | FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | | |
616 | FE_CAN_HIERARCHY_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | | |
617 | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_RECOVER | |
618 | }, | |
619 | ||
620 | .release = cx22702_release, | |
621 | ||
622 | .init = cx22702_init, | |
623 | .i2c_gate_ctrl = cx22702_i2c_gate_ctrl, | |
624 | ||
625 | .set_frontend = cx22702_set_tps, | |
626 | .get_frontend = cx22702_get_frontend, | |
627 | .get_tune_settings = cx22702_get_tune_settings, | |
628 | ||
629 | .read_status = cx22702_read_status, | |
630 | .read_ber = cx22702_read_ber, | |
631 | .read_signal_strength = cx22702_read_signal_strength, | |
632 | .read_snr = cx22702_read_snr, | |
633 | .read_ucblocks = cx22702_read_ucblocks, | |
634 | }; | |
635 | ||
636 | MODULE_DESCRIPTION("Conexant CX22702 DVB-T Demodulator driver"); | |
637 | MODULE_AUTHOR("Steven Toth"); | |
638 | MODULE_LICENSE("GPL"); |