1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | tda18271-fe.c - driver for the Philips / NXP TDA18271 silicon tuner |
4 | |
5 | Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org> |
6 | |
7 | */ |
8 | |
9 | #include "tda18271-priv.h" |
10 | #include "tda8290.h" |
11 | |
12 | #include <linux/delay.h> |
13 | #include <linux/videodev2.h> |
14 | |
15 | int tda18271_debug; |
16 | module_param_named(debug, tda18271_debug, int, 0644); |
17 | MODULE_PARM_DESC(debug, "set debug level (info=1, map=2, reg=4, adv=8, cal=16 (or-able))" ); |
18 | |
19 | static int tda18271_cal_on_startup = -1; |
20 | module_param_named(cal, tda18271_cal_on_startup, int, 0644); |
21 | MODULE_PARM_DESC(cal, "perform RF tracking filter calibration on startup" ); |
22 | |
23 | static DEFINE_MUTEX(tda18271_list_mutex); |
24 | static LIST_HEAD(hybrid_tuner_instance_list); |
25 | |
26 | /*---------------------------------------------------------------------*/ |
27 | |
28 | static int tda18271_toggle_output(struct dvb_frontend *fe, int standby) |
29 | { |
30 | struct tda18271_priv *priv = fe->tuner_priv; |
31 | |
32 | int ret = tda18271_set_standby_mode(fe, sm: standby ? 1 : 0, |
33 | sm_lt: priv->output_opt & TDA18271_OUTPUT_LT_OFF ? 1 : 0, |
34 | sm_xt: priv->output_opt & TDA18271_OUTPUT_XT_OFF ? 1 : 0); |
35 | |
36 | if (tda_fail(ret)) |
37 | goto fail; |
38 | |
39 | tda_dbg("%s mode: xtal oscillator %s, slave tuner loop through %s\n" , |
40 | standby ? "standby" : "active" , |
41 | priv->output_opt & TDA18271_OUTPUT_XT_OFF ? "off" : "on" , |
42 | priv->output_opt & TDA18271_OUTPUT_LT_OFF ? "off" : "on" ); |
43 | fail: |
44 | return ret; |
45 | } |
46 | |
47 | /*---------------------------------------------------------------------*/ |
48 | |
49 | static inline int charge_pump_source(struct dvb_frontend *fe, int force) |
50 | { |
51 | struct tda18271_priv *priv = fe->tuner_priv; |
52 | return tda18271_charge_pump_source(fe, |
53 | pll: (priv->role == TDA18271_SLAVE) ? |
54 | TDA18271_CAL_PLL : |
55 | TDA18271_MAIN_PLL, force); |
56 | } |
57 | |
58 | static inline void tda18271_set_if_notch(struct dvb_frontend *fe) |
59 | { |
60 | struct tda18271_priv *priv = fe->tuner_priv; |
61 | unsigned char *regs = priv->tda18271_regs; |
62 | |
63 | switch (priv->mode) { |
64 | case TDA18271_ANALOG: |
65 | regs[R_MPD] &= ~0x80; /* IF notch = 0 */ |
66 | break; |
67 | case TDA18271_DIGITAL: |
68 | regs[R_MPD] |= 0x80; /* IF notch = 1 */ |
69 | break; |
70 | } |
71 | } |
72 | |
73 | static int tda18271_channel_configuration(struct dvb_frontend *fe, |
74 | struct tda18271_std_map_item *map, |
75 | u32 freq, u32 bw) |
76 | { |
77 | struct tda18271_priv *priv = fe->tuner_priv; |
78 | unsigned char *regs = priv->tda18271_regs; |
79 | int ret; |
80 | u32 N; |
81 | |
82 | /* update TV broadcast parameters */ |
83 | |
84 | /* set standard */ |
85 | regs[R_EP3] &= ~0x1f; /* clear std bits */ |
86 | regs[R_EP3] |= (map->agc_mode << 3) | map->std; |
87 | |
88 | if (priv->id == TDA18271HDC2) { |
89 | /* set rfagc to high speed mode */ |
90 | regs[R_EP3] &= ~0x04; |
91 | } |
92 | |
93 | /* set cal mode to normal */ |
94 | regs[R_EP4] &= ~0x03; |
95 | |
96 | /* update IF output level */ |
97 | regs[R_EP4] &= ~0x1c; /* clear if level bits */ |
98 | regs[R_EP4] |= (map->if_lvl << 2); |
99 | |
100 | /* update FM_RFn */ |
101 | regs[R_EP4] &= ~0x80; |
102 | regs[R_EP4] |= map->fm_rfn << 7; |
103 | |
104 | /* update rf top / if top */ |
105 | regs[R_EB22] = 0x00; |
106 | regs[R_EB22] |= map->rfagc_top; |
107 | ret = tda18271_write_regs(fe, R_EB22, len: 1); |
108 | if (tda_fail(ret)) |
109 | goto fail; |
110 | |
111 | /* --------------------------------------------------------------- */ |
112 | |
113 | /* disable Power Level Indicator */ |
114 | regs[R_EP1] |= 0x40; |
115 | |
116 | /* make sure thermometer is off */ |
117 | regs[R_TM] &= ~0x10; |
118 | |
119 | /* frequency dependent parameters */ |
120 | |
121 | tda18271_calc_ir_measure(fe, freq: &freq); |
122 | |
123 | tda18271_calc_bp_filter(fe, freq: &freq); |
124 | |
125 | tda18271_calc_rf_band(fe, freq: &freq); |
126 | |
127 | tda18271_calc_gain_taper(fe, freq: &freq); |
128 | |
129 | /* --------------------------------------------------------------- */ |
130 | |
131 | /* dual tuner and agc1 extra configuration */ |
132 | |
133 | switch (priv->role) { |
134 | case TDA18271_MASTER: |
135 | regs[R_EB1] |= 0x04; /* main vco */ |
136 | break; |
137 | case TDA18271_SLAVE: |
138 | regs[R_EB1] &= ~0x04; /* cal vco */ |
139 | break; |
140 | } |
141 | |
142 | /* agc1 always active */ |
143 | regs[R_EB1] &= ~0x02; |
144 | |
145 | /* agc1 has priority on agc2 */ |
146 | regs[R_EB1] &= ~0x01; |
147 | |
148 | ret = tda18271_write_regs(fe, R_EB1, len: 1); |
149 | if (tda_fail(ret)) |
150 | goto fail; |
151 | |
152 | /* --------------------------------------------------------------- */ |
153 | |
154 | N = map->if_freq * 1000 + freq; |
155 | |
156 | switch (priv->role) { |
157 | case TDA18271_MASTER: |
158 | tda18271_calc_main_pll(fe, freq: N); |
159 | tda18271_set_if_notch(fe); |
160 | tda18271_write_regs(fe, R_MPD, len: 4); |
161 | break; |
162 | case TDA18271_SLAVE: |
163 | tda18271_calc_cal_pll(fe, freq: N); |
164 | tda18271_write_regs(fe, R_CPD, len: 4); |
165 | |
166 | regs[R_MPD] = regs[R_CPD] & 0x7f; |
167 | tda18271_set_if_notch(fe); |
168 | tda18271_write_regs(fe, R_MPD, len: 1); |
169 | break; |
170 | } |
171 | |
172 | ret = tda18271_write_regs(fe, R_TM, len: 7); |
173 | if (tda_fail(ret)) |
174 | goto fail; |
175 | |
176 | /* force charge pump source */ |
177 | charge_pump_source(fe, force: 1); |
178 | |
179 | msleep(msecs: 1); |
180 | |
181 | /* return pll to normal operation */ |
182 | charge_pump_source(fe, force: 0); |
183 | |
184 | msleep(msecs: 20); |
185 | |
186 | if (priv->id == TDA18271HDC2) { |
187 | /* set rfagc to normal speed mode */ |
188 | if (map->fm_rfn) |
189 | regs[R_EP3] &= ~0x04; |
190 | else |
191 | regs[R_EP3] |= 0x04; |
192 | ret = tda18271_write_regs(fe, R_EP3, len: 1); |
193 | } |
194 | fail: |
195 | return ret; |
196 | } |
197 | |
198 | static int tda18271_read_thermometer(struct dvb_frontend *fe) |
199 | { |
200 | struct tda18271_priv *priv = fe->tuner_priv; |
201 | unsigned char *regs = priv->tda18271_regs; |
202 | int tm; |
203 | |
204 | /* switch thermometer on */ |
205 | regs[R_TM] |= 0x10; |
206 | tda18271_write_regs(fe, R_TM, len: 1); |
207 | |
208 | /* read thermometer info */ |
209 | tda18271_read_regs(fe); |
210 | |
211 | if ((((regs[R_TM] & 0x0f) == 0x00) && ((regs[R_TM] & 0x20) == 0x20)) || |
212 | (((regs[R_TM] & 0x0f) == 0x08) && ((regs[R_TM] & 0x20) == 0x00))) { |
213 | |
214 | if ((regs[R_TM] & 0x20) == 0x20) |
215 | regs[R_TM] &= ~0x20; |
216 | else |
217 | regs[R_TM] |= 0x20; |
218 | |
219 | tda18271_write_regs(fe, R_TM, len: 1); |
220 | |
221 | msleep(msecs: 10); /* temperature sensing */ |
222 | |
223 | /* read thermometer info */ |
224 | tda18271_read_regs(fe); |
225 | } |
226 | |
227 | tm = tda18271_lookup_thermometer(fe); |
228 | |
229 | /* switch thermometer off */ |
230 | regs[R_TM] &= ~0x10; |
231 | tda18271_write_regs(fe, R_TM, len: 1); |
232 | |
233 | /* set CAL mode to normal */ |
234 | regs[R_EP4] &= ~0x03; |
235 | tda18271_write_regs(fe, R_EP4, len: 1); |
236 | |
237 | return tm; |
238 | } |
239 | |
240 | /* ------------------------------------------------------------------ */ |
241 | |
242 | static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe, |
243 | u32 freq) |
244 | { |
245 | struct tda18271_priv *priv = fe->tuner_priv; |
246 | struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state; |
247 | unsigned char *regs = priv->tda18271_regs; |
248 | int i, ret; |
249 | u8 tm_current, dc_over_dt, rf_tab; |
250 | s32 rfcal_comp, approx; |
251 | |
252 | /* power up */ |
253 | ret = tda18271_set_standby_mode(fe, sm: 0, sm_lt: 0, sm_xt: 0); |
254 | if (tda_fail(ret)) |
255 | goto fail; |
256 | |
257 | /* read die current temperature */ |
258 | tm_current = tda18271_read_thermometer(fe); |
259 | |
260 | /* frequency dependent parameters */ |
261 | |
262 | tda18271_calc_rf_cal(fe, freq: &freq); |
263 | rf_tab = regs[R_EB14]; |
264 | |
265 | i = tda18271_lookup_rf_band(fe, freq: &freq, NULL); |
266 | if (tda_fail(i)) |
267 | return i; |
268 | |
269 | if ((0 == map[i].rf3) || (freq / 1000 < map[i].rf2)) { |
270 | approx = map[i].rf_a1 * (s32)(freq / 1000 - map[i].rf1) + |
271 | map[i].rf_b1 + rf_tab; |
272 | } else { |
273 | approx = map[i].rf_a2 * (s32)(freq / 1000 - map[i].rf2) + |
274 | map[i].rf_b2 + rf_tab; |
275 | } |
276 | |
277 | if (approx < 0) |
278 | approx = 0; |
279 | if (approx > 255) |
280 | approx = 255; |
281 | |
282 | tda18271_lookup_map(fe, map_type: RF_CAL_DC_OVER_DT, freq: &freq, val: &dc_over_dt); |
283 | |
284 | /* calculate temperature compensation */ |
285 | rfcal_comp = dc_over_dt * (s32)(tm_current - priv->tm_rfcal) / 1000; |
286 | |
287 | regs[R_EB14] = (unsigned char)(approx + rfcal_comp); |
288 | ret = tda18271_write_regs(fe, R_EB14, len: 1); |
289 | fail: |
290 | return ret; |
291 | } |
292 | |
293 | static int tda18271_por(struct dvb_frontend *fe) |
294 | { |
295 | struct tda18271_priv *priv = fe->tuner_priv; |
296 | unsigned char *regs = priv->tda18271_regs; |
297 | int ret; |
298 | |
299 | /* power up detector 1 */ |
300 | regs[R_EB12] &= ~0x20; |
301 | ret = tda18271_write_regs(fe, R_EB12, len: 1); |
302 | if (tda_fail(ret)) |
303 | goto fail; |
304 | |
305 | regs[R_EB18] &= ~0x80; /* turn agc1 loop on */ |
306 | regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */ |
307 | ret = tda18271_write_regs(fe, R_EB18, len: 1); |
308 | if (tda_fail(ret)) |
309 | goto fail; |
310 | |
311 | regs[R_EB21] |= 0x03; /* set agc2_gain to -6 dB */ |
312 | |
313 | /* POR mode */ |
314 | ret = tda18271_set_standby_mode(fe, sm: 1, sm_lt: 0, sm_xt: 0); |
315 | if (tda_fail(ret)) |
316 | goto fail; |
317 | |
318 | /* disable 1.5 MHz low pass filter */ |
319 | regs[R_EB23] &= ~0x04; /* forcelp_fc2_en = 0 */ |
320 | regs[R_EB23] &= ~0x02; /* XXX: lp_fc[2] = 0 */ |
321 | ret = tda18271_write_regs(fe, R_EB21, len: 3); |
322 | fail: |
323 | return ret; |
324 | } |
325 | |
326 | static int tda18271_calibrate_rf(struct dvb_frontend *fe, u32 freq) |
327 | { |
328 | struct tda18271_priv *priv = fe->tuner_priv; |
329 | unsigned char *regs = priv->tda18271_regs; |
330 | u32 N; |
331 | |
332 | /* set CAL mode to normal */ |
333 | regs[R_EP4] &= ~0x03; |
334 | tda18271_write_regs(fe, R_EP4, len: 1); |
335 | |
336 | /* switch off agc1 */ |
337 | regs[R_EP3] |= 0x40; /* sm_lt = 1 */ |
338 | |
339 | regs[R_EB18] |= 0x03; /* set agc1_gain to 15 dB */ |
340 | tda18271_write_regs(fe, R_EB18, len: 1); |
341 | |
342 | /* frequency dependent parameters */ |
343 | |
344 | tda18271_calc_bp_filter(fe, freq: &freq); |
345 | tda18271_calc_gain_taper(fe, freq: &freq); |
346 | tda18271_calc_rf_band(fe, freq: &freq); |
347 | tda18271_calc_km(fe, freq: &freq); |
348 | |
349 | tda18271_write_regs(fe, R_EP1, len: 3); |
350 | tda18271_write_regs(fe, R_EB13, len: 1); |
351 | |
352 | /* main pll charge pump source */ |
353 | tda18271_charge_pump_source(fe, pll: TDA18271_MAIN_PLL, force: 1); |
354 | |
355 | /* cal pll charge pump source */ |
356 | tda18271_charge_pump_source(fe, pll: TDA18271_CAL_PLL, force: 1); |
357 | |
358 | /* force dcdc converter to 0 V */ |
359 | regs[R_EB14] = 0x00; |
360 | tda18271_write_regs(fe, R_EB14, len: 1); |
361 | |
362 | /* disable plls lock */ |
363 | regs[R_EB20] &= ~0x20; |
364 | tda18271_write_regs(fe, R_EB20, len: 1); |
365 | |
366 | /* set CAL mode to RF tracking filter calibration */ |
367 | regs[R_EP4] |= 0x03; |
368 | tda18271_write_regs(fe, R_EP4, len: 2); |
369 | |
370 | /* --------------------------------------------------------------- */ |
371 | |
372 | /* set the internal calibration signal */ |
373 | N = freq; |
374 | |
375 | tda18271_calc_cal_pll(fe, freq: N); |
376 | tda18271_write_regs(fe, R_CPD, len: 4); |
377 | |
378 | /* downconvert internal calibration */ |
379 | N += 1000000; |
380 | |
381 | tda18271_calc_main_pll(fe, freq: N); |
382 | tda18271_write_regs(fe, R_MPD, len: 4); |
383 | |
384 | msleep(msecs: 5); |
385 | |
386 | tda18271_write_regs(fe, R_EP2, len: 1); |
387 | tda18271_write_regs(fe, R_EP1, len: 1); |
388 | tda18271_write_regs(fe, R_EP2, len: 1); |
389 | tda18271_write_regs(fe, R_EP1, len: 1); |
390 | |
391 | /* --------------------------------------------------------------- */ |
392 | |
393 | /* normal operation for the main pll */ |
394 | tda18271_charge_pump_source(fe, pll: TDA18271_MAIN_PLL, force: 0); |
395 | |
396 | /* normal operation for the cal pll */ |
397 | tda18271_charge_pump_source(fe, pll: TDA18271_CAL_PLL, force: 0); |
398 | |
399 | msleep(msecs: 10); /* plls locking */ |
400 | |
401 | /* launch the rf tracking filters calibration */ |
402 | regs[R_EB20] |= 0x20; |
403 | tda18271_write_regs(fe, R_EB20, len: 1); |
404 | |
405 | msleep(msecs: 60); /* calibration */ |
406 | |
407 | /* --------------------------------------------------------------- */ |
408 | |
409 | /* set CAL mode to normal */ |
410 | regs[R_EP4] &= ~0x03; |
411 | |
412 | /* switch on agc1 */ |
413 | regs[R_EP3] &= ~0x40; /* sm_lt = 0 */ |
414 | |
415 | regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */ |
416 | tda18271_write_regs(fe, R_EB18, len: 1); |
417 | |
418 | tda18271_write_regs(fe, R_EP3, len: 2); |
419 | |
420 | /* synchronization */ |
421 | tda18271_write_regs(fe, R_EP1, len: 1); |
422 | |
423 | /* get calibration result */ |
424 | tda18271_read_extended(fe); |
425 | |
426 | return regs[R_EB14]; |
427 | } |
428 | |
429 | static int tda18271_powerscan(struct dvb_frontend *fe, |
430 | u32 *freq_in, u32 *freq_out) |
431 | { |
432 | struct tda18271_priv *priv = fe->tuner_priv; |
433 | unsigned char *regs = priv->tda18271_regs; |
434 | int sgn, bcal, count, wait, ret; |
435 | u8 cid_target; |
436 | u16 count_limit; |
437 | u32 freq; |
438 | |
439 | freq = *freq_in; |
440 | |
441 | tda18271_calc_rf_band(fe, freq: &freq); |
442 | tda18271_calc_rf_cal(fe, freq: &freq); |
443 | tda18271_calc_gain_taper(fe, freq: &freq); |
444 | tda18271_lookup_cid_target(fe, freq: &freq, cid_target: &cid_target, count_limit: &count_limit); |
445 | |
446 | tda18271_write_regs(fe, R_EP2, len: 1); |
447 | tda18271_write_regs(fe, R_EB14, len: 1); |
448 | |
449 | /* downconvert frequency */ |
450 | freq += 1000000; |
451 | |
452 | tda18271_calc_main_pll(fe, freq); |
453 | tda18271_write_regs(fe, R_MPD, len: 4); |
454 | |
455 | msleep(msecs: 5); /* pll locking */ |
456 | |
457 | /* detection mode */ |
458 | regs[R_EP4] &= ~0x03; |
459 | regs[R_EP4] |= 0x01; |
460 | tda18271_write_regs(fe, R_EP4, len: 1); |
461 | |
462 | /* launch power detection measurement */ |
463 | tda18271_write_regs(fe, R_EP2, len: 1); |
464 | |
465 | /* read power detection info, stored in EB10 */ |
466 | ret = tda18271_read_extended(fe); |
467 | if (tda_fail(ret)) |
468 | return ret; |
469 | |
470 | /* algorithm initialization */ |
471 | sgn = 1; |
472 | *freq_out = *freq_in; |
473 | bcal = 0; |
474 | count = 0; |
475 | wait = false; |
476 | |
477 | while ((regs[R_EB10] & 0x3f) < cid_target) { |
478 | /* downconvert updated freq to 1 MHz */ |
479 | freq = *freq_in + (sgn * count) + 1000000; |
480 | |
481 | tda18271_calc_main_pll(fe, freq); |
482 | tda18271_write_regs(fe, R_MPD, len: 4); |
483 | |
484 | if (wait) { |
485 | msleep(msecs: 5); /* pll locking */ |
486 | wait = false; |
487 | } else |
488 | udelay(100); /* pll locking */ |
489 | |
490 | /* launch power detection measurement */ |
491 | tda18271_write_regs(fe, R_EP2, len: 1); |
492 | |
493 | /* read power detection info, stored in EB10 */ |
494 | ret = tda18271_read_extended(fe); |
495 | if (tda_fail(ret)) |
496 | return ret; |
497 | |
498 | count += 200; |
499 | |
500 | if (count <= count_limit) |
501 | continue; |
502 | |
503 | if (sgn <= 0) |
504 | break; |
505 | |
506 | sgn = -1 * sgn; |
507 | count = 200; |
508 | wait = true; |
509 | } |
510 | |
511 | if ((regs[R_EB10] & 0x3f) >= cid_target) { |
512 | bcal = 1; |
513 | *freq_out = freq - 1000000; |
514 | } else |
515 | bcal = 0; |
516 | |
517 | tda_cal("bcal = %d, freq_in = %d, freq_out = %d (freq = %d)\n" , |
518 | bcal, *freq_in, *freq_out, freq); |
519 | |
520 | return bcal; |
521 | } |
522 | |
523 | static int tda18271_powerscan_init(struct dvb_frontend *fe) |
524 | { |
525 | struct tda18271_priv *priv = fe->tuner_priv; |
526 | unsigned char *regs = priv->tda18271_regs; |
527 | int ret; |
528 | |
529 | /* set standard to digital */ |
530 | regs[R_EP3] &= ~0x1f; /* clear std bits */ |
531 | regs[R_EP3] |= 0x12; |
532 | |
533 | /* set cal mode to normal */ |
534 | regs[R_EP4] &= ~0x03; |
535 | |
536 | /* update IF output level */ |
537 | regs[R_EP4] &= ~0x1c; /* clear if level bits */ |
538 | |
539 | ret = tda18271_write_regs(fe, R_EP3, len: 2); |
540 | if (tda_fail(ret)) |
541 | goto fail; |
542 | |
543 | regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */ |
544 | ret = tda18271_write_regs(fe, R_EB18, len: 1); |
545 | if (tda_fail(ret)) |
546 | goto fail; |
547 | |
548 | regs[R_EB21] &= ~0x03; /* set agc2_gain to -15 dB */ |
549 | |
550 | /* 1.5 MHz low pass filter */ |
551 | regs[R_EB23] |= 0x04; /* forcelp_fc2_en = 1 */ |
552 | regs[R_EB23] |= 0x02; /* lp_fc[2] = 1 */ |
553 | |
554 | ret = tda18271_write_regs(fe, R_EB21, len: 3); |
555 | fail: |
556 | return ret; |
557 | } |
558 | |
559 | static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq) |
560 | { |
561 | struct tda18271_priv *priv = fe->tuner_priv; |
562 | struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state; |
563 | unsigned char *regs = priv->tda18271_regs; |
564 | int bcal, rf, i; |
565 | s32 divisor, dividend; |
566 | #define RF1 0 |
567 | #define RF2 1 |
568 | #define RF3 2 |
569 | u32 rf_default[3]; |
570 | u32 rf_freq[3]; |
571 | s32 prog_cal[3]; |
572 | s32 prog_tab[3]; |
573 | |
574 | i = tda18271_lookup_rf_band(fe, freq: &freq, NULL); |
575 | |
576 | if (tda_fail(i)) |
577 | return i; |
578 | |
579 | rf_default[RF1] = 1000 * map[i].rf1_def; |
580 | rf_default[RF2] = 1000 * map[i].rf2_def; |
581 | rf_default[RF3] = 1000 * map[i].rf3_def; |
582 | |
583 | for (rf = RF1; rf <= RF3; rf++) { |
584 | if (0 == rf_default[rf]) |
585 | return 0; |
586 | tda_cal("freq = %d, rf = %d\n" , freq, rf); |
587 | |
588 | /* look for optimized calibration frequency */ |
589 | bcal = tda18271_powerscan(fe, freq_in: &rf_default[rf], freq_out: &rf_freq[rf]); |
590 | if (tda_fail(bcal)) |
591 | return bcal; |
592 | |
593 | tda18271_calc_rf_cal(fe, freq: &rf_freq[rf]); |
594 | prog_tab[rf] = (s32)regs[R_EB14]; |
595 | |
596 | if (1 == bcal) |
597 | prog_cal[rf] = |
598 | (s32)tda18271_calibrate_rf(fe, freq: rf_freq[rf]); |
599 | else |
600 | prog_cal[rf] = prog_tab[rf]; |
601 | |
602 | switch (rf) { |
603 | case RF1: |
604 | map[i].rf_a1 = 0; |
605 | map[i].rf_b1 = (prog_cal[RF1] - prog_tab[RF1]); |
606 | map[i].rf1 = rf_freq[RF1] / 1000; |
607 | break; |
608 | case RF2: |
609 | dividend = (prog_cal[RF2] - prog_tab[RF2] - |
610 | prog_cal[RF1] + prog_tab[RF1]); |
611 | divisor = (s32)(rf_freq[RF2] - rf_freq[RF1]) / 1000; |
612 | map[i].rf_a1 = (dividend / divisor); |
613 | map[i].rf2 = rf_freq[RF2] / 1000; |
614 | break; |
615 | case RF3: |
616 | dividend = (prog_cal[RF3] - prog_tab[RF3] - |
617 | prog_cal[RF2] + prog_tab[RF2]); |
618 | divisor = (s32)(rf_freq[RF3] - rf_freq[RF2]) / 1000; |
619 | map[i].rf_a2 = (dividend / divisor); |
620 | map[i].rf_b2 = (prog_cal[RF2] - prog_tab[RF2]); |
621 | map[i].rf3 = rf_freq[RF3] / 1000; |
622 | break; |
623 | default: |
624 | BUG(); |
625 | } |
626 | } |
627 | |
628 | return 0; |
629 | } |
630 | |
631 | static int tda18271_calc_rf_filter_curve(struct dvb_frontend *fe) |
632 | { |
633 | struct tda18271_priv *priv = fe->tuner_priv; |
634 | unsigned int i; |
635 | int ret; |
636 | |
637 | tda_info("performing RF tracking filter calibration\n" ); |
638 | |
639 | /* wait for die temperature stabilization */ |
640 | msleep(msecs: 200); |
641 | |
642 | ret = tda18271_powerscan_init(fe); |
643 | if (tda_fail(ret)) |
644 | goto fail; |
645 | |
646 | /* rf band calibration */ |
647 | for (i = 0; priv->rf_cal_state[i].rfmax != 0; i++) { |
648 | ret = |
649 | tda18271_rf_tracking_filters_init(fe, freq: 1000 * |
650 | priv->rf_cal_state[i].rfmax); |
651 | if (tda_fail(ret)) |
652 | goto fail; |
653 | } |
654 | |
655 | priv->tm_rfcal = tda18271_read_thermometer(fe); |
656 | fail: |
657 | return ret; |
658 | } |
659 | |
660 | /* ------------------------------------------------------------------ */ |
661 | |
662 | static int tda18271c2_rf_cal_init(struct dvb_frontend *fe) |
663 | { |
664 | struct tda18271_priv *priv = fe->tuner_priv; |
665 | unsigned char *regs = priv->tda18271_regs; |
666 | int ret; |
667 | |
668 | /* test RF_CAL_OK to see if we need init */ |
669 | if ((regs[R_EP1] & 0x10) == 0) |
670 | priv->cal_initialized = false; |
671 | |
672 | if (priv->cal_initialized) |
673 | return 0; |
674 | |
675 | ret = tda18271_calc_rf_filter_curve(fe); |
676 | if (tda_fail(ret)) |
677 | goto fail; |
678 | |
679 | ret = tda18271_por(fe); |
680 | if (tda_fail(ret)) |
681 | goto fail; |
682 | |
683 | tda_info("RF tracking filter calibration complete\n" ); |
684 | |
685 | priv->cal_initialized = true; |
686 | goto end; |
687 | fail: |
688 | tda_info("RF tracking filter calibration failed!\n" ); |
689 | end: |
690 | return ret; |
691 | } |
692 | |
693 | static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe, |
694 | u32 freq, u32 bw) |
695 | { |
696 | struct tda18271_priv *priv = fe->tuner_priv; |
697 | unsigned char *regs = priv->tda18271_regs; |
698 | int ret; |
699 | u32 N = 0; |
700 | |
701 | /* calculate bp filter */ |
702 | tda18271_calc_bp_filter(fe, freq: &freq); |
703 | tda18271_write_regs(fe, R_EP1, len: 1); |
704 | |
705 | regs[R_EB4] &= 0x07; |
706 | regs[R_EB4] |= 0x60; |
707 | tda18271_write_regs(fe, R_EB4, len: 1); |
708 | |
709 | regs[R_EB7] = 0x60; |
710 | tda18271_write_regs(fe, R_EB7, len: 1); |
711 | |
712 | regs[R_EB14] = 0x00; |
713 | tda18271_write_regs(fe, R_EB14, len: 1); |
714 | |
715 | regs[R_EB20] = 0xcc; |
716 | tda18271_write_regs(fe, R_EB20, len: 1); |
717 | |
718 | /* set cal mode to RF tracking filter calibration */ |
719 | regs[R_EP4] |= 0x03; |
720 | |
721 | /* calculate cal pll */ |
722 | |
723 | switch (priv->mode) { |
724 | case TDA18271_ANALOG: |
725 | N = freq - 1250000; |
726 | break; |
727 | case TDA18271_DIGITAL: |
728 | N = freq + bw / 2; |
729 | break; |
730 | } |
731 | |
732 | tda18271_calc_cal_pll(fe, freq: N); |
733 | |
734 | /* calculate main pll */ |
735 | |
736 | switch (priv->mode) { |
737 | case TDA18271_ANALOG: |
738 | N = freq - 250000; |
739 | break; |
740 | case TDA18271_DIGITAL: |
741 | N = freq + bw / 2 + 1000000; |
742 | break; |
743 | } |
744 | |
745 | tda18271_calc_main_pll(fe, freq: N); |
746 | |
747 | ret = tda18271_write_regs(fe, R_EP3, len: 11); |
748 | if (tda_fail(ret)) |
749 | return ret; |
750 | |
751 | msleep(msecs: 5); /* RF tracking filter calibration initialization */ |
752 | |
753 | /* search for K,M,CO for RF calibration */ |
754 | tda18271_calc_km(fe, freq: &freq); |
755 | tda18271_write_regs(fe, R_EB13, len: 1); |
756 | |
757 | /* search for rf band */ |
758 | tda18271_calc_rf_band(fe, freq: &freq); |
759 | |
760 | /* search for gain taper */ |
761 | tda18271_calc_gain_taper(fe, freq: &freq); |
762 | |
763 | tda18271_write_regs(fe, R_EP2, len: 1); |
764 | tda18271_write_regs(fe, R_EP1, len: 1); |
765 | tda18271_write_regs(fe, R_EP2, len: 1); |
766 | tda18271_write_regs(fe, R_EP1, len: 1); |
767 | |
768 | regs[R_EB4] &= 0x07; |
769 | regs[R_EB4] |= 0x40; |
770 | tda18271_write_regs(fe, R_EB4, len: 1); |
771 | |
772 | regs[R_EB7] = 0x40; |
773 | tda18271_write_regs(fe, R_EB7, len: 1); |
774 | msleep(msecs: 10); /* pll locking */ |
775 | |
776 | regs[R_EB20] = 0xec; |
777 | tda18271_write_regs(fe, R_EB20, len: 1); |
778 | msleep(msecs: 60); /* RF tracking filter calibration completion */ |
779 | |
780 | regs[R_EP4] &= ~0x03; /* set cal mode to normal */ |
781 | tda18271_write_regs(fe, R_EP4, len: 1); |
782 | |
783 | tda18271_write_regs(fe, R_EP1, len: 1); |
784 | |
785 | /* RF tracking filter correction for VHF_Low band */ |
786 | if (0 == tda18271_calc_rf_cal(fe, freq: &freq)) |
787 | tda18271_write_regs(fe, R_EB14, len: 1); |
788 | |
789 | return 0; |
790 | } |
791 | |
792 | /* ------------------------------------------------------------------ */ |
793 | |
794 | static int tda18271_ir_cal_init(struct dvb_frontend *fe) |
795 | { |
796 | struct tda18271_priv *priv = fe->tuner_priv; |
797 | unsigned char *regs = priv->tda18271_regs; |
798 | int ret; |
799 | |
800 | ret = tda18271_read_regs(fe); |
801 | if (tda_fail(ret)) |
802 | goto fail; |
803 | |
804 | /* test IR_CAL_OK to see if we need init */ |
805 | if ((regs[R_EP1] & 0x08) == 0) |
806 | ret = tda18271_init_regs(fe); |
807 | fail: |
808 | return ret; |
809 | } |
810 | |
811 | static int tda18271_init(struct dvb_frontend *fe) |
812 | { |
813 | struct tda18271_priv *priv = fe->tuner_priv; |
814 | int ret; |
815 | |
816 | mutex_lock(&priv->lock); |
817 | |
818 | /* full power up */ |
819 | ret = tda18271_set_standby_mode(fe, sm: 0, sm_lt: 0, sm_xt: 0); |
820 | if (tda_fail(ret)) |
821 | goto fail; |
822 | |
823 | /* initialization */ |
824 | ret = tda18271_ir_cal_init(fe); |
825 | if (tda_fail(ret)) |
826 | goto fail; |
827 | |
828 | if (priv->id == TDA18271HDC2) |
829 | tda18271c2_rf_cal_init(fe); |
830 | fail: |
831 | mutex_unlock(lock: &priv->lock); |
832 | |
833 | return ret; |
834 | } |
835 | |
836 | static int tda18271_sleep(struct dvb_frontend *fe) |
837 | { |
838 | struct tda18271_priv *priv = fe->tuner_priv; |
839 | int ret; |
840 | |
841 | mutex_lock(&priv->lock); |
842 | |
843 | /* enter standby mode, with required output features enabled */ |
844 | ret = tda18271_toggle_output(fe, standby: 1); |
845 | |
846 | mutex_unlock(lock: &priv->lock); |
847 | |
848 | return ret; |
849 | } |
850 | |
851 | /* ------------------------------------------------------------------ */ |
852 | |
853 | static int tda18271_agc(struct dvb_frontend *fe) |
854 | { |
855 | struct tda18271_priv *priv = fe->tuner_priv; |
856 | int ret = 0; |
857 | |
858 | switch (priv->config) { |
859 | case TDA8290_LNA_OFF: |
860 | /* no external agc configuration required */ |
861 | if (tda18271_debug & DBG_ADV) |
862 | tda_dbg("no agc configuration provided\n" ); |
863 | break; |
864 | case TDA8290_LNA_ON_BRIDGE: |
865 | /* switch with GPIO of saa713x */ |
866 | tda_dbg("invoking callback\n" ); |
867 | if (fe->callback) |
868 | ret = fe->callback(priv->i2c_props.adap->algo_data, |
869 | DVB_FRONTEND_COMPONENT_TUNER, |
870 | TDA18271_CALLBACK_CMD_AGC_ENABLE, |
871 | priv->mode); |
872 | break; |
873 | case TDA8290_LNA_GP0_HIGH_ON: |
874 | case TDA8290_LNA_GP0_HIGH_OFF: |
875 | default: |
876 | /* n/a - currently not supported */ |
877 | tda_err("unsupported configuration: %d\n" , priv->config); |
878 | ret = -EINVAL; |
879 | break; |
880 | } |
881 | return ret; |
882 | } |
883 | |
884 | static int tda18271_tune(struct dvb_frontend *fe, |
885 | struct tda18271_std_map_item *map, u32 freq, u32 bw) |
886 | { |
887 | struct tda18271_priv *priv = fe->tuner_priv; |
888 | int ret; |
889 | |
890 | tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n" , |
891 | freq, map->if_freq, bw, map->agc_mode, map->std); |
892 | |
893 | ret = tda18271_agc(fe); |
894 | if (tda_fail(ret)) |
895 | tda_warn("failed to configure agc\n" ); |
896 | |
897 | ret = tda18271_init(fe); |
898 | if (tda_fail(ret)) |
899 | goto fail; |
900 | |
901 | mutex_lock(&priv->lock); |
902 | |
903 | switch (priv->id) { |
904 | case TDA18271HDC1: |
905 | tda18271c1_rf_tracking_filter_calibration(fe, freq, bw); |
906 | break; |
907 | case TDA18271HDC2: |
908 | tda18271c2_rf_tracking_filters_correction(fe, freq); |
909 | break; |
910 | } |
911 | ret = tda18271_channel_configuration(fe, map, freq, bw); |
912 | |
913 | mutex_unlock(lock: &priv->lock); |
914 | fail: |
915 | return ret; |
916 | } |
917 | |
918 | /* ------------------------------------------------------------------ */ |
919 | |
920 | static int tda18271_set_params(struct dvb_frontend *fe) |
921 | { |
922 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
923 | u32 delsys = c->delivery_system; |
924 | u32 bw = c->bandwidth_hz; |
925 | u32 freq = c->frequency; |
926 | struct tda18271_priv *priv = fe->tuner_priv; |
927 | struct tda18271_std_map *std_map = &priv->std; |
928 | struct tda18271_std_map_item *map; |
929 | int ret; |
930 | |
931 | priv->mode = TDA18271_DIGITAL; |
932 | |
933 | switch (delsys) { |
934 | case SYS_ATSC: |
935 | map = &std_map->atsc_6; |
936 | bw = 6000000; |
937 | break; |
938 | case SYS_ISDBT: |
939 | case SYS_DVBT: |
940 | case SYS_DVBT2: |
941 | if (bw <= 6000000) { |
942 | map = &std_map->dvbt_6; |
943 | } else if (bw <= 7000000) { |
944 | map = &std_map->dvbt_7; |
945 | } else { |
946 | map = &std_map->dvbt_8; |
947 | } |
948 | break; |
949 | case SYS_DVBC_ANNEX_B: |
950 | bw = 6000000; |
951 | fallthrough; |
952 | case SYS_DVBC_ANNEX_A: |
953 | case SYS_DVBC_ANNEX_C: |
954 | if (bw <= 6000000) { |
955 | map = &std_map->qam_6; |
956 | } else if (bw <= 7000000) { |
957 | map = &std_map->qam_7; |
958 | } else { |
959 | map = &std_map->qam_8; |
960 | } |
961 | break; |
962 | default: |
963 | tda_warn("modulation type not supported!\n" ); |
964 | return -EINVAL; |
965 | } |
966 | |
967 | /* When tuning digital, the analog demod must be tri-stated */ |
968 | if (fe->ops.analog_ops.standby) |
969 | fe->ops.analog_ops.standby(fe); |
970 | |
971 | ret = tda18271_tune(fe, map, freq, bw); |
972 | |
973 | if (tda_fail(ret)) |
974 | goto fail; |
975 | |
976 | priv->if_freq = map->if_freq; |
977 | priv->frequency = freq; |
978 | priv->bandwidth = bw; |
979 | fail: |
980 | return ret; |
981 | } |
982 | |
983 | static int tda18271_set_analog_params(struct dvb_frontend *fe, |
984 | struct analog_parameters *params) |
985 | { |
986 | struct tda18271_priv *priv = fe->tuner_priv; |
987 | struct tda18271_std_map *std_map = &priv->std; |
988 | struct tda18271_std_map_item *map; |
989 | char *mode; |
990 | int ret; |
991 | u32 freq = params->frequency * 125 * |
992 | ((params->mode == V4L2_TUNER_RADIO) ? 1 : 1000) / 2; |
993 | |
994 | priv->mode = TDA18271_ANALOG; |
995 | |
996 | if (params->mode == V4L2_TUNER_RADIO) { |
997 | map = &std_map->fm_radio; |
998 | mode = "fm" ; |
999 | } else if (params->std & V4L2_STD_MN) { |
1000 | map = &std_map->atv_mn; |
1001 | mode = "MN" ; |
1002 | } else if (params->std & V4L2_STD_B) { |
1003 | map = &std_map->atv_b; |
1004 | mode = "B" ; |
1005 | } else if (params->std & V4L2_STD_GH) { |
1006 | map = &std_map->atv_gh; |
1007 | mode = "GH" ; |
1008 | } else if (params->std & V4L2_STD_PAL_I) { |
1009 | map = &std_map->atv_i; |
1010 | mode = "I" ; |
1011 | } else if (params->std & V4L2_STD_DK) { |
1012 | map = &std_map->atv_dk; |
1013 | mode = "DK" ; |
1014 | } else if (params->std & V4L2_STD_SECAM_L) { |
1015 | map = &std_map->atv_l; |
1016 | mode = "L" ; |
1017 | } else if (params->std & V4L2_STD_SECAM_LC) { |
1018 | map = &std_map->atv_lc; |
1019 | mode = "L'" ; |
1020 | } else { |
1021 | map = &std_map->atv_i; |
1022 | mode = "xx" ; |
1023 | } |
1024 | |
1025 | tda_dbg("setting tda18271 to system %s\n" , mode); |
1026 | |
1027 | ret = tda18271_tune(fe, map, freq, bw: 0); |
1028 | |
1029 | if (tda_fail(ret)) |
1030 | goto fail; |
1031 | |
1032 | priv->if_freq = map->if_freq; |
1033 | priv->frequency = freq; |
1034 | priv->bandwidth = 0; |
1035 | fail: |
1036 | return ret; |
1037 | } |
1038 | |
1039 | static void tda18271_release(struct dvb_frontend *fe) |
1040 | { |
1041 | struct tda18271_priv *priv = fe->tuner_priv; |
1042 | |
1043 | mutex_lock(&tda18271_list_mutex); |
1044 | |
1045 | if (priv) |
1046 | hybrid_tuner_release_state(priv); |
1047 | |
1048 | mutex_unlock(lock: &tda18271_list_mutex); |
1049 | |
1050 | fe->tuner_priv = NULL; |
1051 | } |
1052 | |
1053 | static int tda18271_get_frequency(struct dvb_frontend *fe, u32 *frequency) |
1054 | { |
1055 | struct tda18271_priv *priv = fe->tuner_priv; |
1056 | *frequency = priv->frequency; |
1057 | return 0; |
1058 | } |
1059 | |
1060 | static int tda18271_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) |
1061 | { |
1062 | struct tda18271_priv *priv = fe->tuner_priv; |
1063 | *bandwidth = priv->bandwidth; |
1064 | return 0; |
1065 | } |
1066 | |
1067 | static int tda18271_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) |
1068 | { |
1069 | struct tda18271_priv *priv = fe->tuner_priv; |
1070 | *frequency = (u32)priv->if_freq * 1000; |
1071 | return 0; |
1072 | } |
1073 | |
1074 | /* ------------------------------------------------------------------ */ |
1075 | |
1076 | #define tda18271_update_std(std_cfg, name) do { \ |
1077 | if (map->std_cfg.if_freq + \ |
1078 | map->std_cfg.agc_mode + map->std_cfg.std + \ |
1079 | map->std_cfg.if_lvl + map->std_cfg.rfagc_top > 0) { \ |
1080 | tda_dbg("Using custom std config for %s\n", name); \ |
1081 | memcpy(&std->std_cfg, &map->std_cfg, \ |
1082 | sizeof(struct tda18271_std_map_item)); \ |
1083 | } } while (0) |
1084 | |
1085 | #define tda18271_dump_std_item(std_cfg, name) do { \ |
1086 | tda_dbg("(%s) if_freq = %d, agc_mode = %d, std = %d, " \ |
1087 | "if_lvl = %d, rfagc_top = 0x%02x\n", \ |
1088 | name, std->std_cfg.if_freq, \ |
1089 | std->std_cfg.agc_mode, std->std_cfg.std, \ |
1090 | std->std_cfg.if_lvl, std->std_cfg.rfagc_top); \ |
1091 | } while (0) |
1092 | |
1093 | static int tda18271_dump_std_map(struct dvb_frontend *fe) |
1094 | { |
1095 | struct tda18271_priv *priv = fe->tuner_priv; |
1096 | struct tda18271_std_map *std = &priv->std; |
1097 | |
1098 | tda_dbg("========== STANDARD MAP SETTINGS ==========\n" ); |
1099 | tda18271_dump_std_item(fm_radio, " fm " ); |
1100 | tda18271_dump_std_item(atv_b, "atv b " ); |
1101 | tda18271_dump_std_item(atv_dk, "atv dk" ); |
1102 | tda18271_dump_std_item(atv_gh, "atv gh" ); |
1103 | tda18271_dump_std_item(atv_i, "atv i " ); |
1104 | tda18271_dump_std_item(atv_l, "atv l " ); |
1105 | tda18271_dump_std_item(atv_lc, "atv l'" ); |
1106 | tda18271_dump_std_item(atv_mn, "atv mn" ); |
1107 | tda18271_dump_std_item(atsc_6, "atsc 6" ); |
1108 | tda18271_dump_std_item(dvbt_6, "dvbt 6" ); |
1109 | tda18271_dump_std_item(dvbt_7, "dvbt 7" ); |
1110 | tda18271_dump_std_item(dvbt_8, "dvbt 8" ); |
1111 | tda18271_dump_std_item(qam_6, "qam 6 " ); |
1112 | tda18271_dump_std_item(qam_7, "qam 7 " ); |
1113 | tda18271_dump_std_item(qam_8, "qam 8 " ); |
1114 | |
1115 | return 0; |
1116 | } |
1117 | |
1118 | static int tda18271_update_std_map(struct dvb_frontend *fe, |
1119 | struct tda18271_std_map *map) |
1120 | { |
1121 | struct tda18271_priv *priv = fe->tuner_priv; |
1122 | struct tda18271_std_map *std = &priv->std; |
1123 | |
1124 | if (!map) |
1125 | return -EINVAL; |
1126 | |
1127 | tda18271_update_std(fm_radio, "fm" ); |
1128 | tda18271_update_std(atv_b, "atv b" ); |
1129 | tda18271_update_std(atv_dk, "atv dk" ); |
1130 | tda18271_update_std(atv_gh, "atv gh" ); |
1131 | tda18271_update_std(atv_i, "atv i" ); |
1132 | tda18271_update_std(atv_l, "atv l" ); |
1133 | tda18271_update_std(atv_lc, "atv l'" ); |
1134 | tda18271_update_std(atv_mn, "atv mn" ); |
1135 | tda18271_update_std(atsc_6, "atsc 6" ); |
1136 | tda18271_update_std(dvbt_6, "dvbt 6" ); |
1137 | tda18271_update_std(dvbt_7, "dvbt 7" ); |
1138 | tda18271_update_std(dvbt_8, "dvbt 8" ); |
1139 | tda18271_update_std(qam_6, "qam 6" ); |
1140 | tda18271_update_std(qam_7, "qam 7" ); |
1141 | tda18271_update_std(qam_8, "qam 8" ); |
1142 | |
1143 | return 0; |
1144 | } |
1145 | |
1146 | static int tda18271_get_id(struct dvb_frontend *fe) |
1147 | { |
1148 | struct tda18271_priv *priv = fe->tuner_priv; |
1149 | unsigned char *regs = priv->tda18271_regs; |
1150 | char *name; |
1151 | int ret; |
1152 | |
1153 | mutex_lock(&priv->lock); |
1154 | ret = tda18271_read_regs(fe); |
1155 | mutex_unlock(lock: &priv->lock); |
1156 | |
1157 | if (ret) { |
1158 | tda_info("Error reading device ID @ %d-%04x, bailing out.\n" , |
1159 | i2c_adapter_id(priv->i2c_props.adap), |
1160 | priv->i2c_props.addr); |
1161 | return -EIO; |
1162 | } |
1163 | |
1164 | switch (regs[R_ID] & 0x7f) { |
1165 | case 3: |
1166 | name = "TDA18271HD/C1" ; |
1167 | priv->id = TDA18271HDC1; |
1168 | break; |
1169 | case 4: |
1170 | name = "TDA18271HD/C2" ; |
1171 | priv->id = TDA18271HDC2; |
1172 | break; |
1173 | default: |
1174 | tda_info("Unknown device (%i) detected @ %d-%04x, device not supported.\n" , |
1175 | regs[R_ID], i2c_adapter_id(priv->i2c_props.adap), |
1176 | priv->i2c_props.addr); |
1177 | return -EINVAL; |
1178 | } |
1179 | |
1180 | tda_info("%s detected @ %d-%04x\n" , name, |
1181 | i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr); |
1182 | |
1183 | return 0; |
1184 | } |
1185 | |
1186 | static int tda18271_setup_configuration(struct dvb_frontend *fe, |
1187 | struct tda18271_config *cfg) |
1188 | { |
1189 | struct tda18271_priv *priv = fe->tuner_priv; |
1190 | |
1191 | priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO; |
1192 | priv->role = (cfg) ? cfg->role : TDA18271_MASTER; |
1193 | priv->config = (cfg) ? cfg->config : 0; |
1194 | priv->small_i2c = (cfg) ? |
1195 | cfg->small_i2c : TDA18271_39_BYTE_CHUNK_INIT; |
1196 | priv->output_opt = (cfg) ? |
1197 | cfg->output_opt : TDA18271_OUTPUT_LT_XT_ON; |
1198 | |
1199 | return 0; |
1200 | } |
1201 | |
1202 | static inline int tda18271_need_cal_on_startup(struct tda18271_config *cfg) |
1203 | { |
1204 | /* tda18271_cal_on_startup == -1 when cal module option is unset */ |
1205 | return ((tda18271_cal_on_startup == -1) ? |
1206 | /* honor configuration setting */ |
1207 | ((cfg) && (cfg->rf_cal_on_startup)) : |
1208 | /* module option overrides configuration setting */ |
1209 | (tda18271_cal_on_startup)) ? 1 : 0; |
1210 | } |
1211 | |
1212 | static int tda18271_set_config(struct dvb_frontend *fe, void *priv_cfg) |
1213 | { |
1214 | struct tda18271_config *cfg = (struct tda18271_config *) priv_cfg; |
1215 | |
1216 | tda18271_setup_configuration(fe, cfg); |
1217 | |
1218 | if (tda18271_need_cal_on_startup(cfg)) |
1219 | tda18271_init(fe); |
1220 | |
1221 | /* override default std map with values in config struct */ |
1222 | if ((cfg) && (cfg->std_map)) |
1223 | tda18271_update_std_map(fe, map: cfg->std_map); |
1224 | |
1225 | return 0; |
1226 | } |
1227 | |
1228 | static const struct dvb_tuner_ops tda18271_tuner_ops = { |
1229 | .info = { |
1230 | .name = "NXP TDA18271HD" , |
1231 | .frequency_min_hz = 45 * MHz, |
1232 | .frequency_max_hz = 864 * MHz, |
1233 | .frequency_step_hz = 62500 |
1234 | }, |
1235 | .init = tda18271_init, |
1236 | .sleep = tda18271_sleep, |
1237 | .set_params = tda18271_set_params, |
1238 | .set_analog_params = tda18271_set_analog_params, |
1239 | .release = tda18271_release, |
1240 | .set_config = tda18271_set_config, |
1241 | .get_frequency = tda18271_get_frequency, |
1242 | .get_bandwidth = tda18271_get_bandwidth, |
1243 | .get_if_frequency = tda18271_get_if_frequency, |
1244 | }; |
1245 | |
1246 | struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr, |
1247 | struct i2c_adapter *i2c, |
1248 | struct tda18271_config *cfg) |
1249 | { |
1250 | struct tda18271_priv *priv = NULL; |
1251 | int instance, ret; |
1252 | |
1253 | mutex_lock(&tda18271_list_mutex); |
1254 | |
1255 | instance = hybrid_tuner_request_state(struct tda18271_priv, priv, |
1256 | hybrid_tuner_instance_list, |
1257 | i2c, addr, "tda18271" ); |
1258 | switch (instance) { |
1259 | case 0: |
1260 | goto fail; |
1261 | case 1: |
1262 | /* new tuner instance */ |
1263 | fe->tuner_priv = priv; |
1264 | |
1265 | tda18271_setup_configuration(fe, cfg); |
1266 | |
1267 | priv->cal_initialized = false; |
1268 | mutex_init(&priv->lock); |
1269 | |
1270 | ret = tda18271_get_id(fe); |
1271 | if (tda_fail(ret)) |
1272 | goto fail; |
1273 | |
1274 | ret = tda18271_assign_map_layout(fe); |
1275 | if (tda_fail(ret)) |
1276 | goto fail; |
1277 | |
1278 | /* if delay_cal is set, delay IR & RF calibration until init() |
1279 | * module option 'cal' overrides this delay */ |
1280 | if ((cfg->delay_cal) && (!tda18271_need_cal_on_startup(cfg))) |
1281 | break; |
1282 | |
1283 | mutex_lock(&priv->lock); |
1284 | tda18271_init_regs(fe); |
1285 | |
1286 | if ((tda18271_need_cal_on_startup(cfg)) && |
1287 | (priv->id == TDA18271HDC2)) |
1288 | tda18271c2_rf_cal_init(fe); |
1289 | |
1290 | /* enter standby mode, with required output features enabled */ |
1291 | ret = tda18271_toggle_output(fe, standby: 1); |
1292 | tda_fail(ret); |
1293 | |
1294 | mutex_unlock(lock: &priv->lock); |
1295 | break; |
1296 | default: |
1297 | /* existing tuner instance */ |
1298 | fe->tuner_priv = priv; |
1299 | |
1300 | /* allow dvb driver to override configuration settings */ |
1301 | if (cfg) { |
1302 | if (cfg->gate != TDA18271_GATE_ANALOG) |
1303 | priv->gate = cfg->gate; |
1304 | if (cfg->role) |
1305 | priv->role = cfg->role; |
1306 | if (cfg->config) |
1307 | priv->config = cfg->config; |
1308 | if (cfg->small_i2c) |
1309 | priv->small_i2c = cfg->small_i2c; |
1310 | if (cfg->output_opt) |
1311 | priv->output_opt = cfg->output_opt; |
1312 | if (cfg->std_map) |
1313 | tda18271_update_std_map(fe, map: cfg->std_map); |
1314 | } |
1315 | if (tda18271_need_cal_on_startup(cfg)) |
1316 | tda18271_init(fe); |
1317 | break; |
1318 | } |
1319 | |
1320 | /* override default std map with values in config struct */ |
1321 | if ((cfg) && (cfg->std_map)) |
1322 | tda18271_update_std_map(fe, map: cfg->std_map); |
1323 | |
1324 | mutex_unlock(lock: &tda18271_list_mutex); |
1325 | |
1326 | memcpy(&fe->ops.tuner_ops, &tda18271_tuner_ops, |
1327 | sizeof(struct dvb_tuner_ops)); |
1328 | |
1329 | if (tda18271_debug & (DBG_MAP | DBG_ADV)) |
1330 | tda18271_dump_std_map(fe); |
1331 | |
1332 | return fe; |
1333 | fail: |
1334 | mutex_unlock(lock: &tda18271_list_mutex); |
1335 | |
1336 | tda18271_release(fe); |
1337 | return NULL; |
1338 | } |
1339 | EXPORT_SYMBOL_GPL(tda18271_attach); |
1340 | MODULE_DESCRIPTION("NXP TDA18271HD analog / digital tuner driver" ); |
1341 | MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>" ); |
1342 | MODULE_LICENSE("GPL" ); |
1343 | MODULE_VERSION("0.4" ); |
1344 | |