1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | #include <linux/module.h> |
3 | #include <linux/kernel.h> |
4 | #include <linux/i2c.h> |
5 | #include <linux/types.h> |
6 | #include <linux/init.h> |
7 | #include <linux/errno.h> |
8 | #include <linux/delay.h> |
9 | #include <linux/videodev2.h> |
10 | #include <media/v4l2-common.h> |
11 | #include <media/tuner.h> |
12 | #include "tuner-i2c.h" |
13 | #include "tda9887.h" |
14 | |
15 | |
16 | /* Chips: |
17 | TDA9885 (PAL, NTSC) |
18 | TDA9886 (PAL, SECAM, NTSC) |
19 | TDA9887 (PAL, SECAM, NTSC, FM Radio) |
20 | |
21 | Used as part of several tuners |
22 | */ |
23 | |
24 | static int debug; |
25 | module_param(debug, int, 0644); |
26 | MODULE_PARM_DESC(debug, "enable verbose debug messages" ); |
27 | |
28 | static DEFINE_MUTEX(tda9887_list_mutex); |
29 | static LIST_HEAD(hybrid_tuner_instance_list); |
30 | |
31 | struct tda9887_priv { |
32 | struct tuner_i2c_props i2c_props; |
33 | struct list_head hybrid_tuner_instance_list; |
34 | |
35 | unsigned char data[4]; |
36 | unsigned int config; |
37 | unsigned int mode; |
38 | unsigned int audmode; |
39 | v4l2_std_id std; |
40 | |
41 | bool standby; |
42 | }; |
43 | |
44 | /* ---------------------------------------------------------------------- */ |
45 | |
46 | #define UNSET (-1U) |
47 | |
48 | struct tvnorm { |
49 | v4l2_std_id std; |
50 | char *name; |
51 | unsigned char b; |
52 | unsigned char c; |
53 | unsigned char e; |
54 | }; |
55 | |
56 | /* ---------------------------------------------------------------------- */ |
57 | |
58 | // |
59 | // TDA defines |
60 | // |
61 | |
62 | //// first reg (b) |
63 | #define cVideoTrapBypassOFF 0x00 // bit b0 |
64 | #define cVideoTrapBypassON 0x01 // bit b0 |
65 | |
66 | #define cAutoMuteFmInactive 0x00 // bit b1 |
67 | #define cAutoMuteFmActive 0x02 // bit b1 |
68 | |
69 | #define cIntercarrier 0x00 // bit b2 |
70 | #define cQSS 0x04 // bit b2 |
71 | |
72 | #define cPositiveAmTV 0x00 // bit b3:4 |
73 | #define cFmRadio 0x08 // bit b3:4 |
74 | #define cNegativeFmTV 0x10 // bit b3:4 |
75 | |
76 | |
77 | #define cForcedMuteAudioON 0x20 // bit b5 |
78 | #define cForcedMuteAudioOFF 0x00 // bit b5 |
79 | |
80 | #define cOutputPort1Active 0x00 // bit b6 |
81 | #define cOutputPort1Inactive 0x40 // bit b6 |
82 | |
83 | #define cOutputPort2Active 0x00 // bit b7 |
84 | #define cOutputPort2Inactive 0x80 // bit b7 |
85 | |
86 | |
87 | //// second reg (c) |
88 | #define cDeemphasisOFF 0x00 // bit c5 |
89 | #define cDeemphasisON 0x20 // bit c5 |
90 | |
91 | #define cDeemphasis75 0x00 // bit c6 |
92 | #define cDeemphasis50 0x40 // bit c6 |
93 | |
94 | #define cAudioGain0 0x00 // bit c7 |
95 | #define cAudioGain6 0x80 // bit c7 |
96 | |
97 | #define cTopMask 0x1f // bit c0:4 |
98 | #define cTopDefault 0x10 // bit c0:4 |
99 | |
100 | //// third reg (e) |
101 | #define cAudioIF_4_5 0x00 // bit e0:1 |
102 | #define cAudioIF_5_5 0x01 // bit e0:1 |
103 | #define cAudioIF_6_0 0x02 // bit e0:1 |
104 | #define cAudioIF_6_5 0x03 // bit e0:1 |
105 | |
106 | |
107 | #define cVideoIFMask 0x1c // bit e2:4 |
108 | /* Video IF selection in TV Mode (bit B3=0) */ |
109 | #define cVideoIF_58_75 0x00 // bit e2:4 |
110 | #define cVideoIF_45_75 0x04 // bit e2:4 |
111 | #define cVideoIF_38_90 0x08 // bit e2:4 |
112 | #define cVideoIF_38_00 0x0C // bit e2:4 |
113 | #define cVideoIF_33_90 0x10 // bit e2:4 |
114 | #define cVideoIF_33_40 0x14 // bit e2:4 |
115 | #define cRadioIF_45_75 0x18 // bit e2:4 |
116 | #define cRadioIF_38_90 0x1C // bit e2:4 |
117 | |
118 | /* IF1 selection in Radio Mode (bit B3=1) */ |
119 | #define cRadioIF_33_30 0x00 // bit e2,4 (also 0x10,0x14) |
120 | #define cRadioIF_41_30 0x04 // bit e2,4 |
121 | |
122 | /* Output of AFC pin in radio mode when bit E7=1 */ |
123 | #define cRadioAGC_SIF 0x00 // bit e3 |
124 | #define cRadioAGC_FM 0x08 // bit e3 |
125 | |
126 | #define cTunerGainNormal 0x00 // bit e5 |
127 | #define cTunerGainLow 0x20 // bit e5 |
128 | |
129 | #define cGating_18 0x00 // bit e6 |
130 | #define cGating_36 0x40 // bit e6 |
131 | |
132 | #define cAgcOutON 0x80 // bit e7 |
133 | #define cAgcOutOFF 0x00 // bit e7 |
134 | |
135 | /* ---------------------------------------------------------------------- */ |
136 | |
137 | static struct tvnorm tvnorms[] = { |
138 | { |
139 | .std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H | V4L2_STD_PAL_N, |
140 | .name = "PAL-BGHN" , |
141 | .b = ( cNegativeFmTV | |
142 | cQSS ), |
143 | .c = ( cDeemphasisON | |
144 | cDeemphasis50 | |
145 | cTopDefault), |
146 | .e = ( cGating_36 | |
147 | cAudioIF_5_5 | |
148 | cVideoIF_38_90 ), |
149 | },{ |
150 | .std = V4L2_STD_PAL_I, |
151 | .name = "PAL-I" , |
152 | .b = ( cNegativeFmTV | |
153 | cQSS ), |
154 | .c = ( cDeemphasisON | |
155 | cDeemphasis50 | |
156 | cTopDefault), |
157 | .e = ( cGating_36 | |
158 | cAudioIF_6_0 | |
159 | cVideoIF_38_90 ), |
160 | },{ |
161 | .std = V4L2_STD_PAL_DK, |
162 | .name = "PAL-DK" , |
163 | .b = ( cNegativeFmTV | |
164 | cQSS ), |
165 | .c = ( cDeemphasisON | |
166 | cDeemphasis50 | |
167 | cTopDefault), |
168 | .e = ( cGating_36 | |
169 | cAudioIF_6_5 | |
170 | cVideoIF_38_90 ), |
171 | },{ |
172 | .std = V4L2_STD_PAL_M | V4L2_STD_PAL_Nc, |
173 | .name = "PAL-M/Nc" , |
174 | .b = ( cNegativeFmTV | |
175 | cQSS ), |
176 | .c = ( cDeemphasisON | |
177 | cDeemphasis75 | |
178 | cTopDefault), |
179 | .e = ( cGating_36 | |
180 | cAudioIF_4_5 | |
181 | cVideoIF_45_75 ), |
182 | },{ |
183 | .std = V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, |
184 | .name = "SECAM-BGH" , |
185 | .b = ( cNegativeFmTV | |
186 | cQSS ), |
187 | .c = ( cTopDefault), |
188 | .e = ( cAudioIF_5_5 | |
189 | cVideoIF_38_90 ), |
190 | },{ |
191 | .std = V4L2_STD_SECAM_L, |
192 | .name = "SECAM-L" , |
193 | .b = ( cPositiveAmTV | |
194 | cQSS ), |
195 | .c = ( cTopDefault), |
196 | .e = ( cGating_36 | |
197 | cAudioIF_6_5 | |
198 | cVideoIF_38_90 ), |
199 | },{ |
200 | .std = V4L2_STD_SECAM_LC, |
201 | .name = "SECAM-L'" , |
202 | .b = ( cOutputPort2Inactive | |
203 | cPositiveAmTV | |
204 | cQSS ), |
205 | .c = ( cTopDefault), |
206 | .e = ( cGating_36 | |
207 | cAudioIF_6_5 | |
208 | cVideoIF_33_90 ), |
209 | },{ |
210 | .std = V4L2_STD_SECAM_DK, |
211 | .name = "SECAM-DK" , |
212 | .b = ( cNegativeFmTV | |
213 | cQSS ), |
214 | .c = ( cDeemphasisON | |
215 | cDeemphasis50 | |
216 | cTopDefault), |
217 | .e = ( cGating_36 | |
218 | cAudioIF_6_5 | |
219 | cVideoIF_38_90 ), |
220 | },{ |
221 | .std = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, |
222 | .name = "NTSC-M" , |
223 | .b = ( cNegativeFmTV | |
224 | cQSS ), |
225 | .c = ( cDeemphasisON | |
226 | cDeemphasis75 | |
227 | cTopDefault), |
228 | .e = ( cGating_36 | |
229 | cAudioIF_4_5 | |
230 | cVideoIF_45_75 ), |
231 | },{ |
232 | .std = V4L2_STD_NTSC_M_JP, |
233 | .name = "NTSC-M-JP" , |
234 | .b = ( cNegativeFmTV | |
235 | cQSS ), |
236 | .c = ( cDeemphasisON | |
237 | cDeemphasis50 | |
238 | cTopDefault), |
239 | .e = ( cGating_36 | |
240 | cAudioIF_4_5 | |
241 | cVideoIF_58_75 ), |
242 | } |
243 | }; |
244 | |
245 | static struct tvnorm radio_stereo = { |
246 | .name = "Radio Stereo" , |
247 | .b = ( cFmRadio | |
248 | cQSS ), |
249 | .c = ( cDeemphasisOFF | |
250 | cAudioGain6 | |
251 | cTopDefault), |
252 | .e = ( cTunerGainLow | |
253 | cAudioIF_5_5 | |
254 | cRadioIF_38_90 ), |
255 | }; |
256 | |
257 | static struct tvnorm radio_mono = { |
258 | .name = "Radio Mono" , |
259 | .b = ( cFmRadio | |
260 | cQSS ), |
261 | .c = ( cDeemphasisON | |
262 | cDeemphasis75 | |
263 | cTopDefault), |
264 | .e = ( cTunerGainLow | |
265 | cAudioIF_5_5 | |
266 | cRadioIF_38_90 ), |
267 | }; |
268 | |
269 | /* ---------------------------------------------------------------------- */ |
270 | |
271 | static void dump_read_message(struct dvb_frontend *fe, unsigned char *buf) |
272 | { |
273 | struct tda9887_priv *priv = fe->analog_demod_priv; |
274 | |
275 | static char *afc[16] = { |
276 | "- 12.5 kHz" , |
277 | "- 37.5 kHz" , |
278 | "- 62.5 kHz" , |
279 | "- 87.5 kHz" , |
280 | "-112.5 kHz" , |
281 | "-137.5 kHz" , |
282 | "-162.5 kHz" , |
283 | "-187.5 kHz [min]" , |
284 | "+187.5 kHz [max]" , |
285 | "+162.5 kHz" , |
286 | "+137.5 kHz" , |
287 | "+112.5 kHz" , |
288 | "+ 87.5 kHz" , |
289 | "+ 62.5 kHz" , |
290 | "+ 37.5 kHz" , |
291 | "+ 12.5 kHz" , |
292 | }; |
293 | tuner_info("read: 0x%2x\n" , buf[0]); |
294 | tuner_info(" after power on : %s\n" , (buf[0] & 0x01) ? "yes" : "no" ); |
295 | tuner_info(" afc : %s\n" , afc[(buf[0] >> 1) & 0x0f]); |
296 | tuner_info(" fmif level : %s\n" , (buf[0] & 0x20) ? "high" : "low" ); |
297 | tuner_info(" afc window : %s\n" , (buf[0] & 0x40) ? "in" : "out" ); |
298 | tuner_info(" vfi level : %s\n" , (buf[0] & 0x80) ? "high" : "low" ); |
299 | } |
300 | |
301 | static void dump_write_message(struct dvb_frontend *fe, unsigned char *buf) |
302 | { |
303 | struct tda9887_priv *priv = fe->analog_demod_priv; |
304 | |
305 | static char *sound[4] = { |
306 | "AM/TV" , |
307 | "FM/radio" , |
308 | "FM/TV" , |
309 | "FM/radio" |
310 | }; |
311 | static char *adjust[32] = { |
312 | "-16" , "-15" , "-14" , "-13" , "-12" , "-11" , "-10" , "-9" , |
313 | "-8" , "-7" , "-6" , "-5" , "-4" , "-3" , "-2" , "-1" , |
314 | "0" , "+1" , "+2" , "+3" , "+4" , "+5" , "+6" , "+7" , |
315 | "+8" , "+9" , "+10" , "+11" , "+12" , "+13" , "+14" , "+15" |
316 | }; |
317 | static char *deemph[4] = { |
318 | "no" , "no" , "75" , "50" |
319 | }; |
320 | static char *carrier[4] = { |
321 | "4.5 MHz" , |
322 | "5.5 MHz" , |
323 | "6.0 MHz" , |
324 | "6.5 MHz / AM" |
325 | }; |
326 | static char *vif[8] = { |
327 | "58.75 MHz" , |
328 | "45.75 MHz" , |
329 | "38.9 MHz" , |
330 | "38.0 MHz" , |
331 | "33.9 MHz" , |
332 | "33.4 MHz" , |
333 | "45.75 MHz + pin13" , |
334 | "38.9 MHz + pin13" , |
335 | }; |
336 | static char *rif[4] = { |
337 | "44 MHz" , |
338 | "52 MHz" , |
339 | "52 MHz" , |
340 | "44 MHz" , |
341 | }; |
342 | |
343 | tuner_info("write: byte B 0x%02x\n" , buf[1]); |
344 | tuner_info(" B0 video mode : %s\n" , |
345 | (buf[1] & 0x01) ? "video trap" : "sound trap" ); |
346 | tuner_info(" B1 auto mute fm : %s\n" , |
347 | (buf[1] & 0x02) ? "yes" : "no" ); |
348 | tuner_info(" B2 carrier mode : %s\n" , |
349 | (buf[1] & 0x04) ? "QSS" : "Intercarrier" ); |
350 | tuner_info(" B3-4 tv sound/radio : %s\n" , |
351 | sound[(buf[1] & 0x18) >> 3]); |
352 | tuner_info(" B5 force mute audio: %s\n" , |
353 | (buf[1] & 0x20) ? "yes" : "no" ); |
354 | tuner_info(" B6 output port 1 : %s\n" , |
355 | (buf[1] & 0x40) ? "high (inactive)" : "low (active)" ); |
356 | tuner_info(" B7 output port 2 : %s\n" , |
357 | (buf[1] & 0x80) ? "high (inactive)" : "low (active)" ); |
358 | |
359 | tuner_info("write: byte C 0x%02x\n" , buf[2]); |
360 | tuner_info(" C0-4 top adjustment : %s dB\n" , |
361 | adjust[buf[2] & 0x1f]); |
362 | tuner_info(" C5-6 de-emphasis : %s\n" , |
363 | deemph[(buf[2] & 0x60) >> 5]); |
364 | tuner_info(" C7 audio gain : %s\n" , |
365 | (buf[2] & 0x80) ? "-6" : "0" ); |
366 | |
367 | tuner_info("write: byte E 0x%02x\n" , buf[3]); |
368 | tuner_info(" E0-1 sound carrier : %s\n" , |
369 | carrier[(buf[3] & 0x03)]); |
370 | tuner_info(" E6 l pll gating : %s\n" , |
371 | (buf[3] & 0x40) ? "36" : "13" ); |
372 | |
373 | if (buf[1] & 0x08) { |
374 | /* radio */ |
375 | tuner_info(" E2-4 video if : %s\n" , |
376 | rif[(buf[3] & 0x0c) >> 2]); |
377 | tuner_info(" E7 vif agc output : %s\n" , |
378 | (buf[3] & 0x80) |
379 | ? ((buf[3] & 0x10) ? "fm-agc radio" : |
380 | "sif-agc radio" ) |
381 | : "fm radio carrier afc" ); |
382 | } else { |
383 | /* video */ |
384 | tuner_info(" E2-4 video if : %s\n" , |
385 | vif[(buf[3] & 0x1c) >> 2]); |
386 | tuner_info(" E5 tuner gain : %s\n" , |
387 | (buf[3] & 0x80) |
388 | ? ((buf[3] & 0x20) ? "external" : "normal" ) |
389 | : ((buf[3] & 0x20) ? "minimum" : "normal" )); |
390 | tuner_info(" E7 vif agc output : %s\n" , |
391 | (buf[3] & 0x80) ? ((buf[3] & 0x20) |
392 | ? "pin3 port, pin22 vif agc out" |
393 | : "pin22 port, pin3 vif acg ext in" ) |
394 | : "pin3+pin22 port" ); |
395 | } |
396 | tuner_info("--\n" ); |
397 | } |
398 | |
399 | /* ---------------------------------------------------------------------- */ |
400 | |
401 | static int tda9887_set_tvnorm(struct dvb_frontend *fe) |
402 | { |
403 | struct tda9887_priv *priv = fe->analog_demod_priv; |
404 | struct tvnorm *norm = NULL; |
405 | char *buf = priv->data; |
406 | int i; |
407 | |
408 | if (priv->mode == V4L2_TUNER_RADIO) { |
409 | if (priv->audmode == V4L2_TUNER_MODE_MONO) |
410 | norm = &radio_mono; |
411 | else |
412 | norm = &radio_stereo; |
413 | } else { |
414 | for (i = 0; i < ARRAY_SIZE(tvnorms); i++) { |
415 | if (tvnorms[i].std & priv->std) { |
416 | norm = tvnorms+i; |
417 | break; |
418 | } |
419 | } |
420 | } |
421 | if (NULL == norm) { |
422 | tuner_dbg("Unsupported tvnorm entry - audio muted\n" ); |
423 | return -1; |
424 | } |
425 | |
426 | tuner_dbg("configure for: %s\n" , norm->name); |
427 | buf[1] = norm->b; |
428 | buf[2] = norm->c; |
429 | buf[3] = norm->e; |
430 | return 0; |
431 | } |
432 | |
433 | static unsigned int port1 = UNSET; |
434 | static unsigned int port2 = UNSET; |
435 | static unsigned int qss = UNSET; |
436 | static unsigned int adjust = UNSET; |
437 | |
438 | module_param(port1, int, 0644); |
439 | module_param(port2, int, 0644); |
440 | module_param(qss, int, 0644); |
441 | module_param(adjust, int, 0644); |
442 | |
443 | static int tda9887_set_insmod(struct dvb_frontend *fe) |
444 | { |
445 | struct tda9887_priv *priv = fe->analog_demod_priv; |
446 | char *buf = priv->data; |
447 | |
448 | if (UNSET != port1) { |
449 | if (port1) |
450 | buf[1] |= cOutputPort1Inactive; |
451 | else |
452 | buf[1] &= ~cOutputPort1Inactive; |
453 | } |
454 | if (UNSET != port2) { |
455 | if (port2) |
456 | buf[1] |= cOutputPort2Inactive; |
457 | else |
458 | buf[1] &= ~cOutputPort2Inactive; |
459 | } |
460 | |
461 | if (UNSET != qss) { |
462 | if (qss) |
463 | buf[1] |= cQSS; |
464 | else |
465 | buf[1] &= ~cQSS; |
466 | } |
467 | |
468 | if (adjust < 0x20) { |
469 | buf[2] &= ~cTopMask; |
470 | buf[2] |= adjust; |
471 | } |
472 | return 0; |
473 | } |
474 | |
475 | static int tda9887_do_config(struct dvb_frontend *fe) |
476 | { |
477 | struct tda9887_priv *priv = fe->analog_demod_priv; |
478 | char *buf = priv->data; |
479 | |
480 | if (priv->config & TDA9887_PORT1_ACTIVE) |
481 | buf[1] &= ~cOutputPort1Inactive; |
482 | if (priv->config & TDA9887_PORT1_INACTIVE) |
483 | buf[1] |= cOutputPort1Inactive; |
484 | if (priv->config & TDA9887_PORT2_ACTIVE) |
485 | buf[1] &= ~cOutputPort2Inactive; |
486 | if (priv->config & TDA9887_PORT2_INACTIVE) |
487 | buf[1] |= cOutputPort2Inactive; |
488 | |
489 | if (priv->config & TDA9887_QSS) |
490 | buf[1] |= cQSS; |
491 | if (priv->config & TDA9887_INTERCARRIER) |
492 | buf[1] &= ~cQSS; |
493 | |
494 | if (priv->config & TDA9887_AUTOMUTE) |
495 | buf[1] |= cAutoMuteFmActive; |
496 | if (priv->config & TDA9887_DEEMPHASIS_MASK) { |
497 | buf[2] &= ~0x60; |
498 | switch (priv->config & TDA9887_DEEMPHASIS_MASK) { |
499 | case TDA9887_DEEMPHASIS_NONE: |
500 | buf[2] |= cDeemphasisOFF; |
501 | break; |
502 | case TDA9887_DEEMPHASIS_50: |
503 | buf[2] |= cDeemphasisON | cDeemphasis50; |
504 | break; |
505 | case TDA9887_DEEMPHASIS_75: |
506 | buf[2] |= cDeemphasisON | cDeemphasis75; |
507 | break; |
508 | } |
509 | } |
510 | if (priv->config & TDA9887_TOP_SET) { |
511 | buf[2] &= ~cTopMask; |
512 | buf[2] |= (priv->config >> 8) & cTopMask; |
513 | } |
514 | if ((priv->config & TDA9887_INTERCARRIER_NTSC) && |
515 | (priv->std & V4L2_STD_NTSC)) |
516 | buf[1] &= ~cQSS; |
517 | if (priv->config & TDA9887_GATING_18) |
518 | buf[3] &= ~cGating_36; |
519 | |
520 | if (priv->mode == V4L2_TUNER_RADIO) { |
521 | if (priv->config & TDA9887_RIF_41_3) { |
522 | buf[3] &= ~cVideoIFMask; |
523 | buf[3] |= cRadioIF_41_30; |
524 | } |
525 | if (priv->config & TDA9887_GAIN_NORMAL) |
526 | buf[3] &= ~cTunerGainLow; |
527 | } |
528 | |
529 | return 0; |
530 | } |
531 | |
532 | /* ---------------------------------------------------------------------- */ |
533 | |
534 | static int tda9887_status(struct dvb_frontend *fe) |
535 | { |
536 | struct tda9887_priv *priv = fe->analog_demod_priv; |
537 | unsigned char buf[1]; |
538 | int rc; |
539 | |
540 | rc = tuner_i2c_xfer_recv(props: &priv->i2c_props, buf, len: 1); |
541 | if (rc != 1) |
542 | tuner_info("i2c i/o error: rc == %d (should be 1)\n" , rc); |
543 | dump_read_message(fe, buf); |
544 | return 0; |
545 | } |
546 | |
547 | static void tda9887_configure(struct dvb_frontend *fe) |
548 | { |
549 | struct tda9887_priv *priv = fe->analog_demod_priv; |
550 | int rc; |
551 | |
552 | memset(priv->data,0,sizeof(priv->data)); |
553 | tda9887_set_tvnorm(fe); |
554 | |
555 | /* A note on the port settings: |
556 | These settings tend to depend on the specifics of the board. |
557 | By default they are set to inactive (bit value 1) by this driver, |
558 | overwriting any changes made by the tvnorm. This means that it |
559 | is the responsibility of the module using the tda9887 to set |
560 | these values in case of changes in the tvnorm. |
561 | In many cases port 2 should be made active (0) when selecting |
562 | SECAM-L, and port 2 should remain inactive (1) for SECAM-L'. |
563 | |
564 | For the other standards the tda9887 application note says that |
565 | the ports should be set to active (0), but, again, that may |
566 | differ depending on the precise hardware configuration. |
567 | */ |
568 | priv->data[1] |= cOutputPort1Inactive; |
569 | priv->data[1] |= cOutputPort2Inactive; |
570 | |
571 | tda9887_do_config(fe); |
572 | tda9887_set_insmod(fe); |
573 | |
574 | if (priv->standby) |
575 | priv->data[1] |= cForcedMuteAudioON; |
576 | |
577 | tuner_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n" , |
578 | priv->data[1], priv->data[2], priv->data[3]); |
579 | if (debug > 1) |
580 | dump_write_message(fe, buf: priv->data); |
581 | |
582 | if (4 != (rc = tuner_i2c_xfer_send(props: &priv->i2c_props,buf: priv->data,len: 4))) |
583 | tuner_info("i2c i/o error: rc == %d (should be 4)\n" , rc); |
584 | |
585 | if (debug > 2) { |
586 | msleep_interruptible(msecs: 1000); |
587 | tda9887_status(fe); |
588 | } |
589 | } |
590 | |
591 | /* ---------------------------------------------------------------------- */ |
592 | |
593 | static void tda9887_tuner_status(struct dvb_frontend *fe) |
594 | { |
595 | struct tda9887_priv *priv = fe->analog_demod_priv; |
596 | tuner_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n" , |
597 | priv->data[1], priv->data[2], priv->data[3]); |
598 | } |
599 | |
600 | static int tda9887_get_afc(struct dvb_frontend *fe, s32 *afc) |
601 | { |
602 | struct tda9887_priv *priv = fe->analog_demod_priv; |
603 | static const int AFC_BITS_2_kHz[] = { |
604 | -12500, -37500, -62500, -97500, |
605 | -112500, -137500, -162500, -187500, |
606 | 187500, 162500, 137500, 112500, |
607 | 97500 , 62500, 37500 , 12500 |
608 | }; |
609 | __u8 reg = 0; |
610 | |
611 | if (priv->mode != V4L2_TUNER_RADIO) |
612 | return 0; |
613 | if (1 == tuner_i2c_xfer_recv(props: &priv->i2c_props, buf: ®, len: 1)) |
614 | *afc = AFC_BITS_2_kHz[(reg >> 1) & 0x0f]; |
615 | return 0; |
616 | } |
617 | |
618 | static void tda9887_standby(struct dvb_frontend *fe) |
619 | { |
620 | struct tda9887_priv *priv = fe->analog_demod_priv; |
621 | |
622 | priv->standby = true; |
623 | |
624 | tda9887_configure(fe); |
625 | } |
626 | |
627 | static void tda9887_set_params(struct dvb_frontend *fe, |
628 | struct analog_parameters *params) |
629 | { |
630 | struct tda9887_priv *priv = fe->analog_demod_priv; |
631 | |
632 | priv->standby = false; |
633 | priv->mode = params->mode; |
634 | priv->audmode = params->audmode; |
635 | priv->std = params->std; |
636 | tda9887_configure(fe); |
637 | } |
638 | |
639 | static int tda9887_set_config(struct dvb_frontend *fe, void *priv_cfg) |
640 | { |
641 | struct tda9887_priv *priv = fe->analog_demod_priv; |
642 | |
643 | priv->config = *(unsigned int *)priv_cfg; |
644 | tda9887_configure(fe); |
645 | |
646 | return 0; |
647 | } |
648 | |
649 | static void tda9887_release(struct dvb_frontend *fe) |
650 | { |
651 | struct tda9887_priv *priv = fe->analog_demod_priv; |
652 | |
653 | mutex_lock(&tda9887_list_mutex); |
654 | |
655 | if (priv) |
656 | hybrid_tuner_release_state(priv); |
657 | |
658 | mutex_unlock(lock: &tda9887_list_mutex); |
659 | |
660 | fe->analog_demod_priv = NULL; |
661 | } |
662 | |
663 | static const struct analog_demod_ops tda9887_ops = { |
664 | .info = { |
665 | .name = "tda9887" , |
666 | }, |
667 | .set_params = tda9887_set_params, |
668 | .standby = tda9887_standby, |
669 | .tuner_status = tda9887_tuner_status, |
670 | .get_afc = tda9887_get_afc, |
671 | .release = tda9887_release, |
672 | .set_config = tda9887_set_config, |
673 | }; |
674 | |
675 | struct dvb_frontend *tda9887_attach(struct dvb_frontend *fe, |
676 | struct i2c_adapter *i2c_adap, |
677 | u8 i2c_addr) |
678 | { |
679 | struct tda9887_priv *priv = NULL; |
680 | int instance; |
681 | |
682 | mutex_lock(&tda9887_list_mutex); |
683 | |
684 | instance = hybrid_tuner_request_state(struct tda9887_priv, priv, |
685 | hybrid_tuner_instance_list, |
686 | i2c_adap, i2c_addr, "tda9887" ); |
687 | switch (instance) { |
688 | case 0: |
689 | mutex_unlock(lock: &tda9887_list_mutex); |
690 | return NULL; |
691 | case 1: |
692 | fe->analog_demod_priv = priv; |
693 | priv->standby = true; |
694 | tuner_info("tda988[5/6/7] found\n" ); |
695 | break; |
696 | default: |
697 | fe->analog_demod_priv = priv; |
698 | break; |
699 | } |
700 | |
701 | mutex_unlock(lock: &tda9887_list_mutex); |
702 | |
703 | memcpy(&fe->ops.analog_ops, &tda9887_ops, |
704 | sizeof(struct analog_demod_ops)); |
705 | |
706 | return fe; |
707 | } |
708 | EXPORT_SYMBOL_GPL(tda9887_attach); |
709 | |
710 | MODULE_LICENSE("GPL" ); |
711 | |