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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / media / usb / dvb-usb / af9005-fe.c
blob6c960f723457e81c5e634613ebec3d5e6eb27603
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Frontend part of the Linux driver for the Afatech 9005
3 * USB1.1 DVB-T receiver.
4 *
5 * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org)
6 *
7 * Thanks to Afatech who kindly provided information.
8 *
9 * see Documentation/media/dvb-drivers/dvb-usb.rst for more information
10 */
11 #include "af9005.h"
12 #include "af9005-script.h"
13 #include "mt2060.h"
14 #include "qt1010.h"
15 #include <asm/div64.h>
16
17 struct af9005_fe_state {
18 struct dvb_usb_device *d;
19 enum fe_status stat;
20
21 /* retraining parameters */
22 u32 original_fcw;
23 u16 original_rf_top;
24 u16 original_if_top;
25 u16 original_if_min;
26 u16 original_aci0_if_top;
27 u16 original_aci1_if_top;
28 u16 original_aci0_if_min;
29 u8 original_if_unplug_th;
30 u8 original_rf_unplug_th;
31 u8 original_dtop_if_unplug_th;
32 u8 original_dtop_rf_unplug_th;
33
34 /* statistics */
35 u32 pre_vit_error_count;
36 u32 pre_vit_bit_count;
37 u32 ber;
38 u32 post_vit_error_count;
39 u32 post_vit_bit_count;
40 u32 unc;
41 u16 abort_count;
42
43 int opened;
44 int strong;
45 unsigned long next_status_check;
46 struct dvb_frontend frontend;
47 };
48
49 static int af9005_write_word_agc(struct dvb_usb_device *d, u16 reghi,
50 u16 reglo, u8 pos, u8 len, u16 value)
51 {
52 int ret;
53
54 if ((ret = af9005_write_ofdm_register(d, reglo, (u8) (value & 0xff))))
55 return ret;
56 return af9005_write_register_bits(d, reghi, pos, len,
57 (u8) ((value & 0x300) >> 8));
58 }
59
60 static int af9005_read_word_agc(struct dvb_usb_device *d, u16 reghi,
61 u16 reglo, u8 pos, u8 len, u16 * value)
62 {
63 int ret;
64 u8 temp0, temp1;
65
66 if ((ret = af9005_read_ofdm_register(d, reglo, &temp0)))
67 return ret;
68 if ((ret = af9005_read_ofdm_register(d, reghi, &temp1)))
69 return ret;
70 switch (pos) {
71 case 0:
72 *value = ((u16) (temp1 & 0x03) << 8) + (u16) temp0;
73 break;
74 case 2:
75 *value = ((u16) (temp1 & 0x0C) << 6) + (u16) temp0;
76 break;
77 case 4:
78 *value = ((u16) (temp1 & 0x30) << 4) + (u16) temp0;
79 break;
80 case 6:
81 *value = ((u16) (temp1 & 0xC0) << 2) + (u16) temp0;
82 break;
83 default:
84 err("invalid pos in read word agc");
85 return -EINVAL;
86 }
87 return 0;
88
89 }
90
91 static int af9005_is_fecmon_available(struct dvb_frontend *fe, int *available)
92 {
93 struct af9005_fe_state *state = fe->demodulator_priv;
94 int ret;
95 u8 temp;
96
97 *available = false;
98
99 ret = af9005_read_register_bits(state->d, xd_p_fec_vtb_rsd_mon_en,
100 fec_vtb_rsd_mon_en_pos,
101 fec_vtb_rsd_mon_en_len, &temp);
102 if (ret)
103 return ret;
104 if (temp & 1) {
105 ret =
106 af9005_read_register_bits(state->d,
107 xd_p_reg_ofsm_read_rbc_en,
108 reg_ofsm_read_rbc_en_pos,
109 reg_ofsm_read_rbc_en_len, &temp);
110 if (ret)
111 return ret;
112 if ((temp & 1) == 0)
113 *available = true;
114
115 }
116 return 0;
117 }
118
119 static int af9005_get_post_vit_err_cw_count(struct dvb_frontend *fe,
120 u32 * post_err_count,
121 u32 * post_cw_count,
122 u16 * abort_count)
123 {
124 struct af9005_fe_state *state = fe->demodulator_priv;
125 int ret;
126 u32 err_count;
127 u32 cw_count;
128 u8 temp, temp0, temp1, temp2;
129 u16 loc_abort_count;
130
131 *post_err_count = 0;
132 *post_cw_count = 0;
133
134 /* check if error bit count is ready */
135 ret =
136 af9005_read_register_bits(state->d, xd_r_fec_rsd_ber_rdy,
137 fec_rsd_ber_rdy_pos, fec_rsd_ber_rdy_len,
138 &temp);
139 if (ret)
140 return ret;
141 if (!temp) {
142 deb_info("rsd counter not ready\n");
143 return 100;
144 }
145 /* get abort count */
146 ret =
147 af9005_read_ofdm_register(state->d,
148 xd_r_fec_rsd_abort_packet_cnt_7_0,
149 &temp0);
150 if (ret)
151 return ret;
152 ret =
153 af9005_read_ofdm_register(state->d,
154 xd_r_fec_rsd_abort_packet_cnt_15_8,
155 &temp1);
156 if (ret)
157 return ret;
158 loc_abort_count = ((u16) temp1 << 8) + temp0;
159
160 /* get error count */
161 ret =
162 af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_7_0,
163 &temp0);
164 if (ret)
165 return ret;
166 ret =
167 af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_15_8,
168 &temp1);
169 if (ret)
170 return ret;
171 ret =
172 af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_23_16,
173 &temp2);
174 if (ret)
175 return ret;
176 err_count = ((u32) temp2 << 16) + ((u32) temp1 << 8) + temp0;
177 *post_err_count = err_count - (u32) loc_abort_count *8 * 8;
178
179 /* get RSD packet number */
180 ret =
181 af9005_read_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_7_0,
182 &temp0);
183 if (ret)
184 return ret;
185 ret =
186 af9005_read_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_15_8,
187 &temp1);
188 if (ret)
189 return ret;
190 cw_count = ((u32) temp1 << 8) + temp0;
191 if (cw_count == 0) {
192 err("wrong RSD packet count");
193 return -EIO;
194 }
195 deb_info("POST abort count %d err count %d rsd packets %d\n",
196 loc_abort_count, err_count, cw_count);
197 *post_cw_count = cw_count - (u32) loc_abort_count;
198 *abort_count = loc_abort_count;
199 return 0;
200
201 }
202
203 static int af9005_get_post_vit_ber(struct dvb_frontend *fe,
204 u32 * post_err_count, u32 * post_cw_count,
205 u16 * abort_count)
206 {
207 u32 loc_cw_count = 0, loc_err_count;
208 u16 loc_abort_count = 0;
209 int ret;
210
211 ret =
212 af9005_get_post_vit_err_cw_count(fe, &loc_err_count, &loc_cw_count,
213 &loc_abort_count);
214 if (ret)
215 return ret;
216 *post_err_count = loc_err_count;
217 *post_cw_count = loc_cw_count * 204 * 8;
218 *abort_count = loc_abort_count;
219
220 return 0;
221 }
222
223 static int af9005_get_pre_vit_err_bit_count(struct dvb_frontend *fe,
224 u32 * pre_err_count,
225 u32 * pre_bit_count)
226 {
227 struct af9005_fe_state *state = fe->demodulator_priv;
228 u8 temp, temp0, temp1, temp2;
229 u32 super_frame_count, x, bits;
230 int ret;
231
232 ret =
233 af9005_read_register_bits(state->d, xd_r_fec_vtb_ber_rdy,
234 fec_vtb_ber_rdy_pos, fec_vtb_ber_rdy_len,
235 &temp);
236 if (ret)
237 return ret;
238 if (!temp) {
239 deb_info("viterbi counter not ready\n");
240 return 101; /* ERR_APO_VTB_COUNTER_NOT_READY; */
241 }
242 ret =
243 af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_7_0,
244 &temp0);
245 if (ret)
246 return ret;
247 ret =
248 af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_15_8,
249 &temp1);
250 if (ret)
251 return ret;
252 ret =
253 af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_23_16,
254 &temp2);
255 if (ret)
256 return ret;
257 *pre_err_count = ((u32) temp2 << 16) + ((u32) temp1 << 8) + temp0;
258
259 ret =
260 af9005_read_ofdm_register(state->d, xd_p_fec_super_frm_unit_7_0,
261 &temp0);
262 if (ret)
263 return ret;
264 ret =
265 af9005_read_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8,
266 &temp1);
267 if (ret)
268 return ret;
269 super_frame_count = ((u32) temp1 << 8) + temp0;
270 if (super_frame_count == 0) {
271 deb_info("super frame count 0\n");
272 return 102;
273 }
274
275 /* read fft mode */
276 ret =
277 af9005_read_register_bits(state->d, xd_g_reg_tpsd_txmod,
278 reg_tpsd_txmod_pos, reg_tpsd_txmod_len,
279 &temp);
280 if (ret)
281 return ret;
282 if (temp == 0) {
283 /* 2K */
284 x = 1512;
285 } else if (temp == 1) {
286 /* 8k */
287 x = 6048;
288 } else {
289 err("Invalid fft mode");
290 return -EINVAL;
291 }
292
293 /* read modulation mode */
294 ret =
295 af9005_read_register_bits(state->d, xd_g_reg_tpsd_const,
296 reg_tpsd_const_pos, reg_tpsd_const_len,
297 &temp);
298 if (ret)
299 return ret;
300 switch (temp) {
301 case 0: /* QPSK */
302 bits = 2;
303 break;
304 case 1: /* QAM_16 */
305 bits = 4;
306 break;
307 case 2: /* QAM_64 */
308 bits = 6;
309 break;
310 default:
311 err("invalid modulation mode");
312 return -EINVAL;
313 }
314 *pre_bit_count = super_frame_count * 68 * 4 * x * bits;
315 deb_info("PRE err count %d frame count %d bit count %d\n",
316 *pre_err_count, super_frame_count, *pre_bit_count);
317 return 0;
318 }
319
320 static int af9005_reset_pre_viterbi(struct dvb_frontend *fe)
321 {
322 struct af9005_fe_state *state = fe->demodulator_priv;
323 int ret;
324
325 /* set super frame count to 1 */
326 ret =
327 af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_7_0,
328 1 & 0xff);
329 if (ret)
330 return ret;
331 ret = af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8,
332 1 >> 8);
333 if (ret)
334 return ret;
335 /* reset pre viterbi error count */
336 ret =
337 af9005_write_register_bits(state->d, xd_p_fec_vtb_ber_rst,
338 fec_vtb_ber_rst_pos, fec_vtb_ber_rst_len,
339 1);
340
341 return ret;
342 }
343
344 static int af9005_reset_post_viterbi(struct dvb_frontend *fe)
345 {
346 struct af9005_fe_state *state = fe->demodulator_priv;
347 int ret;
348
349 /* set packet unit */
350 ret =
351 af9005_write_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_7_0,
352 10000 & 0xff);
353 if (ret)
354 return ret;
355 ret =
356 af9005_write_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_15_8,
357 10000 >> 8);
358 if (ret)
359 return ret;
360 /* reset post viterbi error count */
361 ret =
362 af9005_write_register_bits(state->d, xd_p_fec_rsd_ber_rst,
363 fec_rsd_ber_rst_pos, fec_rsd_ber_rst_len,
364 1);
365
366 return ret;
367 }
368
369 static int af9005_get_statistic(struct dvb_frontend *fe)
370 {
371 struct af9005_fe_state *state = fe->demodulator_priv;
372 int ret, fecavailable;
373 u64 numerator, denominator;
374
375 deb_info("GET STATISTIC\n");
376 ret = af9005_is_fecmon_available(fe, &fecavailable);
377 if (ret)
378 return ret;
379 if (!fecavailable) {
380 deb_info("fecmon not available\n");
381 return 0;
382 }
383
384 ret = af9005_get_pre_vit_err_bit_count(fe, &state->pre_vit_error_count,
385 &state->pre_vit_bit_count);
386 if (ret == 0) {
387 af9005_reset_pre_viterbi(fe);
388 if (state->pre_vit_bit_count > 0) {
389 /* according to v 0.0.4 of the dvb api ber should be a multiple
390 of 10E-9 so we have to multiply the error count by
391 10E9=1000000000 */
392 numerator =
393 (u64) state->pre_vit_error_count * (u64) 1000000000;
394 denominator = (u64) state->pre_vit_bit_count;
395 state->ber = do_div(numerator, denominator);
396 } else {
397 state->ber = 0xffffffff;
398 }
399 }
400
401 ret = af9005_get_post_vit_ber(fe, &state->post_vit_error_count,
402 &state->post_vit_bit_count,
403 &state->abort_count);
404 if (ret == 0) {
405 ret = af9005_reset_post_viterbi(fe);
406 state->unc += state->abort_count;
407 if (ret)
408 return ret;
409 }
410 return 0;
411 }
412
413 static int af9005_fe_refresh_state(struct dvb_frontend *fe)
414 {
415 struct af9005_fe_state *state = fe->demodulator_priv;
416 if (time_after(jiffies, state->next_status_check)) {
417 deb_info("REFRESH STATE\n");
418
419 /* statistics */
420 if (af9005_get_statistic(fe))
421 err("get_statistic_failed");
422 state->next_status_check = jiffies + 250 * HZ / 1000;
423 }
424 return 0;
425 }
426
427 static int af9005_fe_read_status(struct dvb_frontend *fe,
428 enum fe_status *stat)
429 {
430 struct af9005_fe_state *state = fe->demodulator_priv;
431 u8 temp;
432 int ret;
433
434 if (fe->ops.tuner_ops.release == NULL)
435 return -ENODEV;
436
437 *stat = 0;
438 ret = af9005_read_register_bits(state->d, xd_p_agc_lock,
439 agc_lock_pos, agc_lock_len, &temp);
440 if (ret)
441 return ret;
442 if (temp)
443 *stat |= FE_HAS_SIGNAL;
444
445 ret = af9005_read_register_bits(state->d, xd_p_fd_tpsd_lock,
446 fd_tpsd_lock_pos, fd_tpsd_lock_len,
447 &temp);
448 if (ret)
449 return ret;
450 if (temp)
451 *stat |= FE_HAS_CARRIER;
452
453 ret = af9005_read_register_bits(state->d,
454 xd_r_mp2if_sync_byte_locked,
455 mp2if_sync_byte_locked_pos,
456 mp2if_sync_byte_locked_pos, &temp);
457 if (ret)
458 return ret;
459 if (temp)
460 *stat |= FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_LOCK;
461 if (state->opened)
462 af9005_led_control(state->d, *stat & FE_HAS_LOCK);
463
464 ret =
465 af9005_read_register_bits(state->d, xd_p_reg_strong_sginal_detected,
466 reg_strong_sginal_detected_pos,
467 reg_strong_sginal_detected_len, &temp);
468 if (ret)
469 return ret;
470 if (temp != state->strong) {
471 deb_info("adjust for strong signal %d\n", temp);
472 state->strong = temp;
473 }
474 return 0;
475 }
476
477 static int af9005_fe_read_ber(struct dvb_frontend *fe, u32 * ber)
478 {
479 struct af9005_fe_state *state = fe->demodulator_priv;
480 if (fe->ops.tuner_ops.release == NULL)
481 return -ENODEV;
482 af9005_fe_refresh_state(fe);
483 *ber = state->ber;
484 return 0;
485 }
486
487 static int af9005_fe_read_unc_blocks(struct dvb_frontend *fe, u32 * unc)
488 {
489 struct af9005_fe_state *state = fe->demodulator_priv;
490 if (fe->ops.tuner_ops.release == NULL)
491 return -ENODEV;
492 af9005_fe_refresh_state(fe);
493 *unc = state->unc;
494 return 0;
495 }
496
497 static int af9005_fe_read_signal_strength(struct dvb_frontend *fe,
498 u16 * strength)
499 {
500 struct af9005_fe_state *state = fe->demodulator_priv;
501 int ret;
502 u8 if_gain, rf_gain;
503
504 if (fe->ops.tuner_ops.release == NULL)
505 return -ENODEV;
506 ret =
507 af9005_read_ofdm_register(state->d, xd_r_reg_aagc_rf_gain,
508 &rf_gain);
509 if (ret)
510 return ret;
511 ret =
512 af9005_read_ofdm_register(state->d, xd_r_reg_aagc_if_gain,
513 &if_gain);
514 if (ret)
515 return ret;
516 /* this value has no real meaning, but i don't have the tables that relate
517 the rf and if gain with the dbm, so I just scale the value */
518 *strength = (512 - rf_gain - if_gain) << 7;
519 return 0;
520 }
521
522 static int af9005_fe_read_snr(struct dvb_frontend *fe, u16 * snr)
523 {
524 /* the snr can be derived from the ber and the modulation
525 but I don't think this kind of complex calculations belong
526 in the driver. I may be wrong.... */
527 return -ENOSYS;
528 }
529
530 static int af9005_fe_program_cfoe(struct dvb_usb_device *d, u32 bw)
531 {
532 u8 temp0, temp1, temp2, temp3, buf[4];
533 int ret;
534 u32 NS_coeff1_2048Nu;
535 u32 NS_coeff1_8191Nu;
536 u32 NS_coeff1_8192Nu;
537 u32 NS_coeff1_8193Nu;
538 u32 NS_coeff2_2k;
539 u32 NS_coeff2_8k;
540
541 switch (bw) {
542 case 6000000:
543 NS_coeff1_2048Nu = 0x2ADB6DC;
544 NS_coeff1_8191Nu = 0xAB7313;
545 NS_coeff1_8192Nu = 0xAB6DB7;
546 NS_coeff1_8193Nu = 0xAB685C;
547 NS_coeff2_2k = 0x156DB6E;
548 NS_coeff2_8k = 0x55B6DC;
549 break;
550
551 case 7000000:
552 NS_coeff1_2048Nu = 0x3200001;
553 NS_coeff1_8191Nu = 0xC80640;
554 NS_coeff1_8192Nu = 0xC80000;
555 NS_coeff1_8193Nu = 0xC7F9C0;
556 NS_coeff2_2k = 0x1900000;
557 NS_coeff2_8k = 0x640000;
558 break;
559
560 case 8000000:
561 NS_coeff1_2048Nu = 0x3924926;
562 NS_coeff1_8191Nu = 0xE4996E;
563 NS_coeff1_8192Nu = 0xE49249;
564 NS_coeff1_8193Nu = 0xE48B25;
565 NS_coeff2_2k = 0x1C92493;
566 NS_coeff2_8k = 0x724925;
567 break;
568 default:
569 err("Invalid bandwidth %d.", bw);
570 return -EINVAL;
571 }
572
573 /*
574 * write NS_coeff1_2048Nu
575 */
576
577 temp0 = (u8) (NS_coeff1_2048Nu & 0x000000FF);
578 temp1 = (u8) ((NS_coeff1_2048Nu & 0x0000FF00) >> 8);
579 temp2 = (u8) ((NS_coeff1_2048Nu & 0x00FF0000) >> 16);
580 temp3 = (u8) ((NS_coeff1_2048Nu & 0x03000000) >> 24);
581
582 /* big endian to make 8051 happy */
583 buf[0] = temp3;
584 buf[1] = temp2;
585 buf[2] = temp1;
586 buf[3] = temp0;
587
588 /* cfoe_NS_2k_coeff1_25_24 */
589 ret = af9005_write_ofdm_register(d, 0xAE00, buf[0]);
590 if (ret)
591 return ret;
592
593 /* cfoe_NS_2k_coeff1_23_16 */
594 ret = af9005_write_ofdm_register(d, 0xAE01, buf[1]);
595 if (ret)
596 return ret;
597
598 /* cfoe_NS_2k_coeff1_15_8 */
599 ret = af9005_write_ofdm_register(d, 0xAE02, buf[2]);
600 if (ret)
601 return ret;
602
603 /* cfoe_NS_2k_coeff1_7_0 */
604 ret = af9005_write_ofdm_register(d, 0xAE03, buf[3]);
605 if (ret)
606 return ret;
607
608 /*
609 * write NS_coeff2_2k
610 */
611
612 temp0 = (u8) ((NS_coeff2_2k & 0x0000003F));
613 temp1 = (u8) ((NS_coeff2_2k & 0x00003FC0) >> 6);
614 temp2 = (u8) ((NS_coeff2_2k & 0x003FC000) >> 14);
615 temp3 = (u8) ((NS_coeff2_2k & 0x01C00000) >> 22);
616
617 /* big endian to make 8051 happy */
618 buf[0] = temp3;
619 buf[1] = temp2;
620 buf[2] = temp1;
621 buf[3] = temp0;
622
623 ret = af9005_write_ofdm_register(d, 0xAE04, buf[0]);
624 if (ret)
625 return ret;
626
627 ret = af9005_write_ofdm_register(d, 0xAE05, buf[1]);
628 if (ret)
629 return ret;
630
631 ret = af9005_write_ofdm_register(d, 0xAE06, buf[2]);
632 if (ret)
633 return ret;
634
635 ret = af9005_write_ofdm_register(d, 0xAE07, buf[3]);
636 if (ret)
637 return ret;
638
639 /*
640 * write NS_coeff1_8191Nu
641 */
642
643 temp0 = (u8) ((NS_coeff1_8191Nu & 0x000000FF));
644 temp1 = (u8) ((NS_coeff1_8191Nu & 0x0000FF00) >> 8);
645 temp2 = (u8) ((NS_coeff1_8191Nu & 0x00FFC000) >> 16);
646 temp3 = (u8) ((NS_coeff1_8191Nu & 0x03000000) >> 24);
647
648 /* big endian to make 8051 happy */
649 buf[0] = temp3;
650 buf[1] = temp2;
651 buf[2] = temp1;
652 buf[3] = temp0;
653
654 ret = af9005_write_ofdm_register(d, 0xAE08, buf[0]);
655 if (ret)
656 return ret;
657
658 ret = af9005_write_ofdm_register(d, 0xAE09, buf[1]);
659 if (ret)
660 return ret;
661
662 ret = af9005_write_ofdm_register(d, 0xAE0A, buf[2]);
663 if (ret)
664 return ret;
665
666 ret = af9005_write_ofdm_register(d, 0xAE0B, buf[3]);
667 if (ret)
668 return ret;
669
670 /*
671 * write NS_coeff1_8192Nu
672 */
673
674 temp0 = (u8) (NS_coeff1_8192Nu & 0x000000FF);
675 temp1 = (u8) ((NS_coeff1_8192Nu & 0x0000FF00) >> 8);
676 temp2 = (u8) ((NS_coeff1_8192Nu & 0x00FFC000) >> 16);
677 temp3 = (u8) ((NS_coeff1_8192Nu & 0x03000000) >> 24);
678
679 /* big endian to make 8051 happy */
680 buf[0] = temp3;
681 buf[1] = temp2;
682 buf[2] = temp1;
683 buf[3] = temp0;
684
685 ret = af9005_write_ofdm_register(d, 0xAE0C, buf[0]);
686 if (ret)
687 return ret;
688
689 ret = af9005_write_ofdm_register(d, 0xAE0D, buf[1]);
690 if (ret)
691 return ret;
692
693 ret = af9005_write_ofdm_register(d, 0xAE0E, buf[2]);
694 if (ret)
695 return ret;
696
697 ret = af9005_write_ofdm_register(d, 0xAE0F, buf[3]);
698 if (ret)
699 return ret;
700
701 /*
702 * write NS_coeff1_8193Nu
703 */
704
705 temp0 = (u8) ((NS_coeff1_8193Nu & 0x000000FF));
706 temp1 = (u8) ((NS_coeff1_8193Nu & 0x0000FF00) >> 8);
707 temp2 = (u8) ((NS_coeff1_8193Nu & 0x00FFC000) >> 16);
708 temp3 = (u8) ((NS_coeff1_8193Nu & 0x03000000) >> 24);
709
710 /* big endian to make 8051 happy */
711 buf[0] = temp3;
712 buf[1] = temp2;
713 buf[2] = temp1;
714 buf[3] = temp0;
715
716 ret = af9005_write_ofdm_register(d, 0xAE10, buf[0]);
717 if (ret)
718 return ret;
719
720 ret = af9005_write_ofdm_register(d, 0xAE11, buf[1]);
721 if (ret)
722 return ret;
723
724 ret = af9005_write_ofdm_register(d, 0xAE12, buf[2]);
725 if (ret)
726 return ret;
727
728 ret = af9005_write_ofdm_register(d, 0xAE13, buf[3]);
729 if (ret)
730 return ret;
731
732 /*
733 * write NS_coeff2_8k
734 */
735
736 temp0 = (u8) ((NS_coeff2_8k & 0x0000003F));
737 temp1 = (u8) ((NS_coeff2_8k & 0x00003FC0) >> 6);
738 temp2 = (u8) ((NS_coeff2_8k & 0x003FC000) >> 14);
739 temp3 = (u8) ((NS_coeff2_8k & 0x01C00000) >> 22);
740
741 /* big endian to make 8051 happy */
742 buf[0] = temp3;
743 buf[1] = temp2;
744 buf[2] = temp1;
745 buf[3] = temp0;
746
747 ret = af9005_write_ofdm_register(d, 0xAE14, buf[0]);
748 if (ret)
749 return ret;
750
751 ret = af9005_write_ofdm_register(d, 0xAE15, buf[1]);
752 if (ret)
753 return ret;
754
755 ret = af9005_write_ofdm_register(d, 0xAE16, buf[2]);
756 if (ret)
757 return ret;
758
759 ret = af9005_write_ofdm_register(d, 0xAE17, buf[3]);
760 return ret;
761
762 }
763
764 static int af9005_fe_select_bw(struct dvb_usb_device *d, u32 bw)
765 {
766 u8 temp;
767 switch (bw) {
768 case 6000000:
769 temp = 0;
770 break;
771 case 7000000:
772 temp = 1;
773 break;
774 case 8000000:
775 temp = 2;
776 break;
777 default:
778 err("Invalid bandwidth %d.", bw);
779 return -EINVAL;
780 }
781 return af9005_write_register_bits(d, xd_g_reg_bw, reg_bw_pos,
782 reg_bw_len, temp);
783 }
784
785 static int af9005_fe_power(struct dvb_frontend *fe, int on)
786 {
787 struct af9005_fe_state *state = fe->demodulator_priv;
788 u8 temp = on;
789 int ret;
790 deb_info("power %s tuner\n", on ? "on" : "off");
791 ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0);
792 return ret;
793 }
794
795 static struct mt2060_config af9005_mt2060_config = {
796 0xC0
797 };
798
799 static struct qt1010_config af9005_qt1010_config = {
800 0xC4
801 };
802
803 static int af9005_fe_init(struct dvb_frontend *fe)
804 {
805 struct af9005_fe_state *state = fe->demodulator_priv;
806 struct dvb_usb_adapter *adap = fe->dvb->priv;
807 int ret, i, scriptlen;
808 u8 temp, temp0 = 0, temp1 = 0, temp2 = 0;
809 u8 buf[2];
810 u16 if1;
811
812 deb_info("in af9005_fe_init\n");
813
814 /* reset */
815 deb_info("reset\n");
816 if ((ret =
817 af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst_en,
818 4, 1, 0x01)))
819 return ret;
820 if ((ret = af9005_write_ofdm_register(state->d, APO_REG_RESET, 0)))
821 return ret;
822 /* clear ofdm reset */
823 deb_info("clear ofdm reset\n");
824 for (i = 0; i < 150; i++) {
825 if ((ret =
826 af9005_read_ofdm_register(state->d,
827 xd_I2C_reg_ofdm_rst, &temp)))
828 return ret;
829 if (temp & (regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos))
830 break;
831 msleep(10);
832 }
833 if (i == 150)
834 return -ETIMEDOUT;
835
836 /*FIXME in the dump
837 write B200 A9
838 write xd_g_reg_ofsm_clk 7
839 read eepr c6 (2)
840 read eepr c7 (2)
841 misc ctrl 3 -> 1
842 read eepr ca (6)
843 write xd_g_reg_ofsm_clk 0
844 write B200 a1
845 */
846 ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa9);
847 if (ret)
848 return ret;
849 ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x07);
850 if (ret)
851 return ret;
852 temp = 0x01;
853 ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0);
854 if (ret)
855 return ret;
856 ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x00);
857 if (ret)
858 return ret;
859 ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa1);
860 if (ret)
861 return ret;
862
863 temp = regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos;
864 if ((ret =
865 af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst,
866 reg_ofdm_rst_pos, reg_ofdm_rst_len, 1)))
867 return ret;
868 ret = af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst,
869 reg_ofdm_rst_pos, reg_ofdm_rst_len, 0);
870
871 if (ret)
872 return ret;
873 /* don't know what register aefc is, but this is what the windows driver does */
874 ret = af9005_write_ofdm_register(state->d, 0xaefc, 0);
875 if (ret)
876 return ret;
877
878 /* set stand alone chip */
879 deb_info("set stand alone chip\n");
880 if ((ret =
881 af9005_write_register_bits(state->d, xd_p_reg_dca_stand_alone,
882 reg_dca_stand_alone_pos,
883 reg_dca_stand_alone_len, 1)))
884 return ret;
885
886 /* set dca upper & lower chip */
887 deb_info("set dca upper & lower chip\n");
888 if ((ret =
889 af9005_write_register_bits(state->d, xd_p_reg_dca_upper_chip,
890 reg_dca_upper_chip_pos,
891 reg_dca_upper_chip_len, 0)))
892 return ret;
893 if ((ret =
894 af9005_write_register_bits(state->d, xd_p_reg_dca_lower_chip,
895 reg_dca_lower_chip_pos,
896 reg_dca_lower_chip_len, 0)))
897 return ret;
898
899 /* set 2wire master clock to 0x14 (for 60KHz) */
900 deb_info("set 2wire master clock to 0x14 (for 60KHz)\n");
901 if ((ret =
902 af9005_write_ofdm_register(state->d, xd_I2C_i2c_m_period, 0x14)))
903 return ret;
904
905 /* clear dca enable chip */
906 deb_info("clear dca enable chip\n");
907 if ((ret =
908 af9005_write_register_bits(state->d, xd_p_reg_dca_en,
909 reg_dca_en_pos, reg_dca_en_len, 0)))
910 return ret;
911 /* FIXME these are register bits, but I don't know which ones */
912 ret = af9005_write_ofdm_register(state->d, 0xa16c, 1);
913 if (ret)
914 return ret;
915 ret = af9005_write_ofdm_register(state->d, 0xa3c1, 0);
916 if (ret)
917 return ret;
918
919 /* init other parameters: program cfoe and select bandwidth */
920 deb_info("program cfoe\n");
921 ret = af9005_fe_program_cfoe(state->d, 6000000);
922 if (ret)
923 return ret;
924 /* set read-update bit for modulation */
925 deb_info("set read-update bit for modulation\n");
926 if ((ret =
927 af9005_write_register_bits(state->d, xd_p_reg_feq_read_update,
928 reg_feq_read_update_pos,
929 reg_feq_read_update_len, 1)))
930 return ret;
931
932 /* sample code has a set MPEG TS code here
933 but sniffing reveals that it doesn't do it */
934
935 /* set read-update bit to 1 for DCA modulation */
936 deb_info("set read-update bit 1 for DCA modulation\n");
937 if ((ret =
938 af9005_write_register_bits(state->d, xd_p_reg_dca_read_update,
939 reg_dca_read_update_pos,
940 reg_dca_read_update_len, 1)))
941 return ret;
942
943 /* enable fec monitor */
944 deb_info("enable fec monitor\n");
945 if ((ret =
946 af9005_write_register_bits(state->d, xd_p_fec_vtb_rsd_mon_en,
947 fec_vtb_rsd_mon_en_pos,
948 fec_vtb_rsd_mon_en_len, 1)))
949 return ret;
950
951 /* FIXME should be register bits, I don't know which ones */
952 ret = af9005_write_ofdm_register(state->d, 0xa601, 0);
953
954 /* set api_retrain_never_freeze */
955 deb_info("set api_retrain_never_freeze\n");
956 if ((ret = af9005_write_ofdm_register(state->d, 0xaefb, 0x01)))
957 return ret;
958
959 /* load init script */
960 deb_info("load init script\n");
961 scriptlen = sizeof(script) / sizeof(RegDesc);
962 for (i = 0; i < scriptlen; i++) {
963 if ((ret =
964 af9005_write_register_bits(state->d, script[i].reg,
965 script[i].pos,
966 script[i].len, script[i].val)))
967 return ret;
968 /* save 3 bytes of original fcw */
969 if (script[i].reg == 0xae18)
970 temp2 = script[i].val;
971 if (script[i].reg == 0xae19)
972 temp1 = script[i].val;
973 if (script[i].reg == 0xae1a)
974 temp0 = script[i].val;
975
976 /* save original unplug threshold */
977 if (script[i].reg == xd_p_reg_unplug_th)
978 state->original_if_unplug_th = script[i].val;
979 if (script[i].reg == xd_p_reg_unplug_rf_gain_th)
980 state->original_rf_unplug_th = script[i].val;
981 if (script[i].reg == xd_p_reg_unplug_dtop_if_gain_th)
982 state->original_dtop_if_unplug_th = script[i].val;
983 if (script[i].reg == xd_p_reg_unplug_dtop_rf_gain_th)
984 state->original_dtop_rf_unplug_th = script[i].val;
985
986 }
987 state->original_fcw =
988 ((u32) temp2 << 16) + ((u32) temp1 << 8) + (u32) temp0;
989
990
991 /* save original TOPs */
992 deb_info("save original TOPs\n");
993
994 /* RF TOP */
995 ret =
996 af9005_read_word_agc(state->d,
997 xd_p_reg_aagc_rf_top_numerator_9_8,
998 xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2,
999 &state->original_rf_top);
1000 if (ret)
1001 return ret;
1002
1003 /* IF TOP */
1004 ret =
1005 af9005_read_word_agc(state->d,
1006 xd_p_reg_aagc_if_top_numerator_9_8,
1007 xd_p_reg_aagc_if_top_numerator_7_0, 0, 2,
1008 &state->original_if_top);
1009 if (ret)
1010 return ret;
1011
1012 /* ACI 0 IF TOP */
1013 ret =
1014 af9005_read_word_agc(state->d, 0xA60E, 0xA60A, 4, 2,
1015 &state->original_aci0_if_top);
1016 if (ret)
1017 return ret;
1018
1019 /* ACI 1 IF TOP */
1020 ret =
1021 af9005_read_word_agc(state->d, 0xA60E, 0xA60B, 6, 2,
1022 &state->original_aci1_if_top);
1023 if (ret)
1024 return ret;
1025
1026 /* attach tuner and init */
1027 if (fe->ops.tuner_ops.release == NULL) {
1028 /* read tuner and board id from eeprom */
1029 ret = af9005_read_eeprom(adap->dev, 0xc6, buf, 2);
1030 if (ret) {
1031 err("Impossible to read EEPROM\n");
1032 return ret;
1033 }
1034 deb_info("Tuner id %d, board id %d\n", buf[0], buf[1]);
1035 switch (buf[0]) {
1036 case 2: /* MT2060 */
1037 /* read if1 from eeprom */
1038 ret = af9005_read_eeprom(adap->dev, 0xc8, buf, 2);
1039 if (ret) {
1040 err("Impossible to read EEPROM\n");
1041 return ret;
1042 }
1043 if1 = (u16) (buf[0] << 8) + buf[1];
1044 if (dvb_attach(mt2060_attach, fe, &adap->dev->i2c_adap,
1045 &af9005_mt2060_config, if1) == NULL) {
1046 deb_info("MT2060 attach failed\n");
1047 return -ENODEV;
1048 }
1049 break;
1050 case 3: /* QT1010 */
1051 case 9: /* QT1010B */
1052 if (dvb_attach(qt1010_attach, fe, &adap->dev->i2c_adap,
1053 &af9005_qt1010_config) ==NULL) {
1054 deb_info("QT1010 attach failed\n");
1055 return -ENODEV;
1056 }
1057 break;
1058 default:
1059 err("Unsupported tuner type %d", buf[0]);
1060 return -ENODEV;
1061 }
1062 ret = fe->ops.tuner_ops.init(fe);
1063 if (ret)
1064 return ret;
1065 }
1066
1067 deb_info("profit!\n");
1068 return 0;
1069 }
1070
1071 static int af9005_fe_sleep(struct dvb_frontend *fe)
1072 {
1073 return af9005_fe_power(fe, 0);
1074 }
1075
1076 static int af9005_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
1077 {
1078 struct af9005_fe_state *state = fe->demodulator_priv;
1079
1080 if (acquire) {
1081 state->opened++;
1082 } else {
1083
1084 state->opened--;
1085 if (!state->opened)
1086 af9005_led_control(state->d, 0);
1087 }
1088 return 0;
1089 }
1090
1091 static int af9005_fe_set_frontend(struct dvb_frontend *fe)
1092 {
1093 struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
1094 struct af9005_fe_state *state = fe->demodulator_priv;
1095 int ret;
1096 u8 temp, temp0, temp1, temp2;
1097
1098 deb_info("af9005_fe_set_frontend freq %d bw %d\n", fep->frequency,
1099 fep->bandwidth_hz);
1100 if (fe->ops.tuner_ops.release == NULL) {
1101 err("Tuner not attached");
1102 return -ENODEV;
1103 }
1104
1105 deb_info("turn off led\n");
1106 /* not in the log */
1107 ret = af9005_led_control(state->d, 0);
1108 if (ret)
1109 return ret;
1110 /* not sure about the bits */
1111 ret = af9005_write_register_bits(state->d, XD_MP2IF_MISC, 2, 1, 0);
1112 if (ret)
1113 return ret;
1114
1115 /* set FCW to default value */
1116 deb_info("set FCW to default value\n");
1117 temp0 = (u8) (state->original_fcw & 0x000000ff);
1118 temp1 = (u8) ((state->original_fcw & 0x0000ff00) >> 8);
1119 temp2 = (u8) ((state->original_fcw & 0x00ff0000) >> 16);
1120 ret = af9005_write_ofdm_register(state->d, 0xae1a, temp0);
1121 if (ret)
1122 return ret;
1123 ret = af9005_write_ofdm_register(state->d, 0xae19, temp1);
1124 if (ret)
1125 return ret;
1126 ret = af9005_write_ofdm_register(state->d, 0xae18, temp2);
1127 if (ret)
1128 return ret;
1129
1130 /* restore original TOPs */
1131 deb_info("restore original TOPs\n");
1132 ret =
1133 af9005_write_word_agc(state->d,
1134 xd_p_reg_aagc_rf_top_numerator_9_8,
1135 xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2,
1136 state->original_rf_top);
1137 if (ret)
1138 return ret;
1139 ret =
1140 af9005_write_word_agc(state->d,
1141 xd_p_reg_aagc_if_top_numerator_9_8,
1142 xd_p_reg_aagc_if_top_numerator_7_0, 0, 2,
1143 state->original_if_top);
1144 if (ret)
1145 return ret;
1146 ret =
1147 af9005_write_word_agc(state->d, 0xA60E, 0xA60A, 4, 2,
1148 state->original_aci0_if_top);
1149 if (ret)
1150 return ret;
1151 ret =
1152 af9005_write_word_agc(state->d, 0xA60E, 0xA60B, 6, 2,
1153 state->original_aci1_if_top);
1154 if (ret)
1155 return ret;
1156
1157 /* select bandwidth */
1158 deb_info("select bandwidth");
1159 ret = af9005_fe_select_bw(state->d, fep->bandwidth_hz);
1160 if (ret)
1161 return ret;
1162 ret = af9005_fe_program_cfoe(state->d, fep->bandwidth_hz);
1163 if (ret)
1164 return ret;
1165
1166 /* clear easy mode flag */
1167 deb_info("clear easy mode flag\n");
1168 ret = af9005_write_ofdm_register(state->d, 0xaefd, 0);
1169 if (ret)
1170 return ret;
1171
1172 /* set unplug threshold to original value */
1173 deb_info("set unplug threshold to original value\n");
1174 ret =
1175 af9005_write_ofdm_register(state->d, xd_p_reg_unplug_th,
1176 state->original_if_unplug_th);
1177 if (ret)
1178 return ret;
1179 /* set tuner */
1180 deb_info("set tuner\n");
1181 ret = fe->ops.tuner_ops.set_params(fe);
1182 if (ret)
1183 return ret;
1184
1185 /* trigger ofsm */
1186 deb_info("trigger ofsm\n");
1187 temp = 0;
1188 ret = af9005_write_tuner_registers(state->d, 0xffff, &temp, 1);
1189 if (ret)
1190 return ret;
1191
1192 /* clear retrain and freeze flag */
1193 deb_info("clear retrain and freeze flag\n");
1194 ret =
1195 af9005_write_register_bits(state->d,
1196 xd_p_reg_api_retrain_request,
1197 reg_api_retrain_request_pos, 2, 0);
1198 if (ret)
1199 return ret;
1200
1201 /* reset pre viterbi and post viterbi registers and statistics */
1202 af9005_reset_pre_viterbi(fe);
1203 af9005_reset_post_viterbi(fe);
1204 state->pre_vit_error_count = 0;
1205 state->pre_vit_bit_count = 0;
1206 state->ber = 0;
1207 state->post_vit_error_count = 0;
1208 /* state->unc = 0; commented out since it should be ever increasing */
1209 state->abort_count = 0;
1210
1211 state->next_status_check = jiffies;
1212 state->strong = -1;
1213
1214 return 0;
1215 }
1216
1217 static int af9005_fe_get_frontend(struct dvb_frontend *fe,
1218 struct dtv_frontend_properties *fep)
1219 {
1220 struct af9005_fe_state *state = fe->demodulator_priv;
1221 int ret;
1222 u8 temp;
1223
1224 /* mode */
1225 ret =
1226 af9005_read_register_bits(state->d, xd_g_reg_tpsd_const,
1227 reg_tpsd_const_pos, reg_tpsd_const_len,
1228 &temp);
1229 if (ret)
1230 return ret;
1231 deb_info("===== fe_get_frontend_legacy = =============\n");
1232 deb_info("CONSTELLATION ");
1233 switch (temp) {
1234 case 0:
1235 fep->modulation = QPSK;
1236 deb_info("QPSK\n");
1237 break;
1238 case 1:
1239 fep->modulation = QAM_16;
1240 deb_info("QAM_16\n");
1241 break;
1242 case 2:
1243 fep->modulation = QAM_64;
1244 deb_info("QAM_64\n");
1245 break;
1246 }
1247
1248 /* tps hierarchy and alpha value */
1249 ret =
1250 af9005_read_register_bits(state->d, xd_g_reg_tpsd_hier,
1251 reg_tpsd_hier_pos, reg_tpsd_hier_len,
1252 &temp);
1253 if (ret)
1254 return ret;
1255 deb_info("HIERARCHY ");
1256 switch (temp) {
1257 case 0:
1258 fep->hierarchy = HIERARCHY_NONE;
1259 deb_info("NONE\n");
1260 break;
1261 case 1:
1262 fep->hierarchy = HIERARCHY_1;
1263 deb_info("1\n");
1264 break;
1265 case 2:
1266 fep->hierarchy = HIERARCHY_2;
1267 deb_info("2\n");
1268 break;
1269 case 3:
1270 fep->hierarchy = HIERARCHY_4;
1271 deb_info("4\n");
1272 break;
1273 }
1274
1275 /* high/low priority */
1276 ret =
1277 af9005_read_register_bits(state->d, xd_g_reg_dec_pri,
1278 reg_dec_pri_pos, reg_dec_pri_len, &temp);
1279 if (ret)
1280 return ret;
1281 /* if temp is set = high priority */
1282 deb_info("PRIORITY %s\n", temp ? "high" : "low");
1283
1284 /* high coderate */
1285 ret =
1286 af9005_read_register_bits(state->d, xd_g_reg_tpsd_hpcr,
1287 reg_tpsd_hpcr_pos, reg_tpsd_hpcr_len,
1288 &temp);
1289 if (ret)
1290 return ret;
1291 deb_info("CODERATE HP ");
1292 switch (temp) {
1293 case 0:
1294 fep->code_rate_HP = FEC_1_2;
1295 deb_info("FEC_1_2\n");
1296 break;
1297 case 1:
1298 fep->code_rate_HP = FEC_2_3;
1299 deb_info("FEC_2_3\n");
1300 break;
1301 case 2:
1302 fep->code_rate_HP = FEC_3_4;
1303 deb_info("FEC_3_4\n");
1304 break;
1305 case 3:
1306 fep->code_rate_HP = FEC_5_6;
1307 deb_info("FEC_5_6\n");
1308 break;
1309 case 4:
1310 fep->code_rate_HP = FEC_7_8;
1311 deb_info("FEC_7_8\n");
1312 break;
1313 }
1314
1315 /* low coderate */
1316 ret =
1317 af9005_read_register_bits(state->d, xd_g_reg_tpsd_lpcr,
1318 reg_tpsd_lpcr_pos, reg_tpsd_lpcr_len,
1319 &temp);
1320 if (ret)
1321 return ret;
1322 deb_info("CODERATE LP ");
1323 switch (temp) {
1324 case 0:
1325 fep->code_rate_LP = FEC_1_2;
1326 deb_info("FEC_1_2\n");
1327 break;
1328 case 1:
1329 fep->code_rate_LP = FEC_2_3;
1330 deb_info("FEC_2_3\n");
1331 break;
1332 case 2:
1333 fep->code_rate_LP = FEC_3_4;
1334 deb_info("FEC_3_4\n");
1335 break;
1336 case 3:
1337 fep->code_rate_LP = FEC_5_6;
1338 deb_info("FEC_5_6\n");
1339 break;
1340 case 4:
1341 fep->code_rate_LP = FEC_7_8;
1342 deb_info("FEC_7_8\n");
1343 break;
1344 }
1345
1346 /* guard interval */
1347 ret =
1348 af9005_read_register_bits(state->d, xd_g_reg_tpsd_gi,
1349 reg_tpsd_gi_pos, reg_tpsd_gi_len, &temp);
1350 if (ret)
1351 return ret;
1352 deb_info("GUARD INTERVAL ");
1353 switch (temp) {
1354 case 0:
1355 fep->guard_interval = GUARD_INTERVAL_1_32;
1356 deb_info("1_32\n");
1357 break;
1358 case 1:
1359 fep->guard_interval = GUARD_INTERVAL_1_16;
1360 deb_info("1_16\n");
1361 break;
1362 case 2:
1363 fep->guard_interval = GUARD_INTERVAL_1_8;
1364 deb_info("1_8\n");
1365 break;
1366 case 3:
1367 fep->guard_interval = GUARD_INTERVAL_1_4;
1368 deb_info("1_4\n");
1369 break;
1370 }
1371
1372 /* fft */
1373 ret =
1374 af9005_read_register_bits(state->d, xd_g_reg_tpsd_txmod,
1375 reg_tpsd_txmod_pos, reg_tpsd_txmod_len,
1376 &temp);
1377 if (ret)
1378 return ret;
1379 deb_info("TRANSMISSION MODE ");
1380 switch (temp) {
1381 case 0:
1382 fep->transmission_mode = TRANSMISSION_MODE_2K;
1383 deb_info("2K\n");
1384 break;
1385 case 1:
1386 fep->transmission_mode = TRANSMISSION_MODE_8K;
1387 deb_info("8K\n");
1388 break;
1389 }
1390
1391 /* bandwidth */
1392 ret =
1393 af9005_read_register_bits(state->d, xd_g_reg_bw, reg_bw_pos,
1394 reg_bw_len, &temp);
1395 deb_info("BANDWIDTH ");
1396 switch (temp) {
1397 case 0:
1398 fep->bandwidth_hz = 6000000;
1399 deb_info("6\n");
1400 break;
1401 case 1:
1402 fep->bandwidth_hz = 7000000;
1403 deb_info("7\n");
1404 break;
1405 case 2:
1406 fep->bandwidth_hz = 8000000;
1407 deb_info("8\n");
1408 break;
1409 }
1410 return 0;
1411 }
1412
1413 static void af9005_fe_release(struct dvb_frontend *fe)
1414 {
1415 struct af9005_fe_state *state =
1416 (struct af9005_fe_state *)fe->demodulator_priv;
1417 kfree(state);
1418 }
1419
1420 static const struct dvb_frontend_ops af9005_fe_ops;
1421
1422 struct dvb_frontend *af9005_fe_attach(struct dvb_usb_device *d)
1423 {
1424 struct af9005_fe_state *state = NULL;
1425
1426 /* allocate memory for the internal state */
1427 state = kzalloc(sizeof(struct af9005_fe_state), GFP_KERNEL);
1428 if (state == NULL)
1429 goto error;
1430
1431 deb_info("attaching frontend af9005\n");
1432
1433 state->d = d;
1434 state->opened = 0;
1435
1436 memcpy(&state->frontend.ops, &af9005_fe_ops,
1437 sizeof(struct dvb_frontend_ops));
1438 state->frontend.demodulator_priv = state;
1439
1440 return &state->frontend;
1441 error:
1442 return NULL;
1443 }
1444
1445 static const struct dvb_frontend_ops af9005_fe_ops = {
1446 .delsys = { SYS_DVBT },
1447 .info = {
1448 .name = "AF9005 USB DVB-T",
1449 .frequency_min_hz = 44250 * kHz,
1450 .frequency_max_hz = 867250 * kHz,
1451 .frequency_stepsize_hz = 250 * kHz,
1452 .caps = FE_CAN_INVERSION_AUTO |
1453 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1454 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1455 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
1456 FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
1457 FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER |
1458 FE_CAN_HIERARCHY_AUTO,
1459 },
1460
1461 .release = af9005_fe_release,
1462
1463 .init = af9005_fe_init,
1464 .sleep = af9005_fe_sleep,
1465 .ts_bus_ctrl = af9005_ts_bus_ctrl,
1466
1467 .set_frontend = af9005_fe_set_frontend,
1468 .get_frontend = af9005_fe_get_frontend,
1469
1470 .read_status = af9005_fe_read_status,
1471 .read_ber = af9005_fe_read_ber,
1472 .read_signal_strength = af9005_fe_read_signal_strength,
1473 .read_snr = af9005_fe_read_snr,
1474 .read_ucblocks = af9005_fe_read_unc_blocks,
1475 };
Linux with added FPC-III support