1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * i2c tv tuner chip device driver |
4 | * controls all those simple 4-control-bytes style tuners. |
5 | * |
6 | * This "tuner-simple" module was split apart from the original "tuner" module. |
7 | */ |
8 | #include <linux/delay.h> |
9 | #include <linux/i2c.h> |
10 | #include <linux/videodev2.h> |
11 | #include <media/tuner.h> |
12 | #include <media/v4l2-common.h> |
13 | #include <media/tuner-types.h> |
14 | #include "tuner-i2c.h" |
15 | #include "tuner-simple.h" |
16 | |
17 | static int debug; |
18 | module_param(debug, int, 0644); |
19 | MODULE_PARM_DESC(debug, "enable verbose debug messages" ); |
20 | |
21 | #define TUNER_SIMPLE_MAX 64 |
22 | static unsigned int simple_devcount; |
23 | |
24 | static int offset; |
25 | module_param(offset, int, 0664); |
26 | MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner" ); |
27 | |
28 | static unsigned int atv_input[TUNER_SIMPLE_MAX] = \ |
29 | { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 }; |
30 | static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \ |
31 | { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 }; |
32 | module_param_array(atv_input, int, NULL, 0644); |
33 | module_param_array(dtv_input, int, NULL, 0644); |
34 | MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect" ); |
35 | MODULE_PARM_DESC(dtv_input, "specify dtv rf input, 0 for autoselect" ); |
36 | |
37 | /* ---------------------------------------------------------------------- */ |
38 | |
39 | /* tv standard selection for Temic 4046 FM5 |
40 | this value takes the low bits of control byte 2 |
41 | from datasheet Rev.01, Feb.00 |
42 | standard BG I L L2 D |
43 | picture IF 38.9 38.9 38.9 33.95 38.9 |
44 | sound 1 33.4 32.9 32.4 40.45 32.4 |
45 | sound 2 33.16 |
46 | NICAM 33.05 32.348 33.05 33.05 |
47 | */ |
48 | #define TEMIC_SET_PAL_I 0x05 |
49 | #define TEMIC_SET_PAL_DK 0x09 |
50 | #define TEMIC_SET_PAL_L 0x0a /* SECAM ? */ |
51 | #define TEMIC_SET_PAL_L2 0x0b /* change IF ! */ |
52 | #define TEMIC_SET_PAL_BG 0x0c |
53 | |
54 | /* tv tuner system standard selection for Philips FQ1216ME |
55 | this value takes the low bits of control byte 2 |
56 | from datasheet "1999 Nov 16" (supersedes "1999 Mar 23") |
57 | standard BG DK I L L` |
58 | picture carrier 38.90 38.90 38.90 38.90 33.95 |
59 | colour 34.47 34.47 34.47 34.47 38.38 |
60 | sound 1 33.40 32.40 32.90 32.40 40.45 |
61 | sound 2 33.16 - - - - |
62 | NICAM 33.05 33.05 32.35 33.05 39.80 |
63 | */ |
64 | #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/ |
65 | #define PHILIPS_SET_PAL_BGDK 0x09 |
66 | #define PHILIPS_SET_PAL_L2 0x0a |
67 | #define PHILIPS_SET_PAL_L 0x0b |
68 | |
69 | /* system switching for Philips FI1216MF MK2 |
70 | from datasheet "1996 Jul 09", |
71 | standard BG L L' |
72 | picture carrier 38.90 38.90 33.95 |
73 | colour 34.47 34.37 38.38 |
74 | sound 1 33.40 32.40 40.45 |
75 | sound 2 33.16 - - |
76 | NICAM 33.05 33.05 39.80 |
77 | */ |
78 | #define PHILIPS_MF_SET_STD_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */ |
79 | #define PHILIPS_MF_SET_STD_L 0x03 /* Used on Secam France */ |
80 | #define PHILIPS_MF_SET_STD_LC 0x02 /* Used on SECAM L' */ |
81 | |
82 | /* Control byte */ |
83 | |
84 | #define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */ |
85 | #define TUNER_RATIO_SELECT_50 0x00 |
86 | #define TUNER_RATIO_SELECT_32 0x02 |
87 | #define TUNER_RATIO_SELECT_166 0x04 |
88 | #define TUNER_RATIO_SELECT_62 0x06 |
89 | |
90 | #define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */ |
91 | |
92 | /* Status byte */ |
93 | |
94 | #define TUNER_POR 0x80 |
95 | #define TUNER_FL 0x40 |
96 | #define TUNER_MODE 0x38 |
97 | #define TUNER_AFC 0x07 |
98 | #define TUNER_SIGNAL 0x07 |
99 | #define TUNER_STEREO 0x10 |
100 | |
101 | #define TUNER_PLL_LOCKED 0x40 |
102 | #define TUNER_STEREO_MK3 0x04 |
103 | |
104 | static DEFINE_MUTEX(tuner_simple_list_mutex); |
105 | static LIST_HEAD(hybrid_tuner_instance_list); |
106 | |
107 | struct tuner_simple_priv { |
108 | unsigned int nr; |
109 | u16 last_div; |
110 | |
111 | struct tuner_i2c_props i2c_props; |
112 | struct list_head hybrid_tuner_instance_list; |
113 | |
114 | unsigned int type; |
115 | struct tunertype *tun; |
116 | |
117 | u32 frequency; |
118 | u32 bandwidth; |
119 | bool radio_mode; |
120 | }; |
121 | |
122 | /* ---------------------------------------------------------------------- */ |
123 | |
124 | static int tuner_read_status(struct dvb_frontend *fe) |
125 | { |
126 | struct tuner_simple_priv *priv = fe->tuner_priv; |
127 | unsigned char byte; |
128 | |
129 | if (1 != tuner_i2c_xfer_recv(props: &priv->i2c_props, buf: &byte, len: 1)) |
130 | return 0; |
131 | |
132 | return byte; |
133 | } |
134 | |
135 | static inline int tuner_signal(const int status) |
136 | { |
137 | return (status & TUNER_SIGNAL) << 13; |
138 | } |
139 | |
140 | static inline int tuner_stereo(const int type, const int status) |
141 | { |
142 | switch (type) { |
143 | case TUNER_PHILIPS_FM1216ME_MK3: |
144 | case TUNER_PHILIPS_FM1236_MK3: |
145 | case TUNER_PHILIPS_FM1256_IH3: |
146 | case TUNER_LG_NTSC_TAPE: |
147 | case TUNER_TCL_MF02GIP_5N: |
148 | return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3); |
149 | case TUNER_PHILIPS_FM1216MK5: |
150 | return status | TUNER_STEREO; |
151 | default: |
152 | return status & TUNER_STEREO; |
153 | } |
154 | } |
155 | |
156 | static inline int tuner_islocked(const int status) |
157 | { |
158 | return (status & TUNER_FL); |
159 | } |
160 | |
161 | static inline int tuner_afcstatus(const int status) |
162 | { |
163 | return (status & TUNER_AFC) - 2; |
164 | } |
165 | |
166 | |
167 | static int simple_get_status(struct dvb_frontend *fe, u32 *status) |
168 | { |
169 | struct tuner_simple_priv *priv = fe->tuner_priv; |
170 | int tuner_status; |
171 | |
172 | if (priv->i2c_props.adap == NULL) |
173 | return -EINVAL; |
174 | |
175 | tuner_status = tuner_read_status(fe); |
176 | |
177 | *status = 0; |
178 | |
179 | if (tuner_islocked(status: tuner_status)) |
180 | *status = TUNER_STATUS_LOCKED; |
181 | if (tuner_stereo(type: priv->type, status: tuner_status)) |
182 | *status |= TUNER_STATUS_STEREO; |
183 | |
184 | tuner_dbg("AFC Status: %d\n" , tuner_afcstatus(tuner_status)); |
185 | |
186 | return 0; |
187 | } |
188 | |
189 | static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength) |
190 | { |
191 | struct tuner_simple_priv *priv = fe->tuner_priv; |
192 | int signal; |
193 | |
194 | if (priv->i2c_props.adap == NULL || !priv->radio_mode) |
195 | return -EINVAL; |
196 | |
197 | signal = tuner_signal(status: tuner_read_status(fe)); |
198 | |
199 | *strength = signal; |
200 | |
201 | tuner_dbg("Signal strength: %d\n" , signal); |
202 | |
203 | return 0; |
204 | } |
205 | |
206 | /* ---------------------------------------------------------------------- */ |
207 | |
208 | static inline char *tuner_param_name(enum param_type type) |
209 | { |
210 | char *name; |
211 | |
212 | switch (type) { |
213 | case TUNER_PARAM_TYPE_RADIO: |
214 | name = "radio" ; |
215 | break; |
216 | case TUNER_PARAM_TYPE_PAL: |
217 | name = "pal" ; |
218 | break; |
219 | case TUNER_PARAM_TYPE_SECAM: |
220 | name = "secam" ; |
221 | break; |
222 | case TUNER_PARAM_TYPE_NTSC: |
223 | name = "ntsc" ; |
224 | break; |
225 | case TUNER_PARAM_TYPE_DIGITAL: |
226 | name = "digital" ; |
227 | break; |
228 | default: |
229 | name = "unknown" ; |
230 | break; |
231 | } |
232 | return name; |
233 | } |
234 | |
235 | static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe, |
236 | enum param_type desired_type) |
237 | { |
238 | struct tuner_simple_priv *priv = fe->tuner_priv; |
239 | struct tunertype *tun = priv->tun; |
240 | int i; |
241 | |
242 | for (i = 0; i < tun->count; i++) |
243 | if (desired_type == tun->params[i].type) |
244 | break; |
245 | |
246 | /* use default tuner params if desired_type not available */ |
247 | if (i == tun->count) { |
248 | tuner_dbg("desired params (%s) undefined for tuner %d\n" , |
249 | tuner_param_name(desired_type), priv->type); |
250 | i = 0; |
251 | } |
252 | |
253 | tuner_dbg("using tuner params #%d (%s)\n" , i, |
254 | tuner_param_name(tun->params[i].type)); |
255 | |
256 | return &tun->params[i]; |
257 | } |
258 | |
259 | static int simple_config_lookup(struct dvb_frontend *fe, |
260 | struct tuner_params *t_params, |
261 | unsigned *frequency, u8 *config, u8 *cb) |
262 | { |
263 | struct tuner_simple_priv *priv = fe->tuner_priv; |
264 | int i; |
265 | |
266 | for (i = 0; i < t_params->count; i++) { |
267 | if (*frequency > t_params->ranges[i].limit) |
268 | continue; |
269 | break; |
270 | } |
271 | if (i == t_params->count) { |
272 | tuner_dbg("frequency out of range (%d > %d)\n" , |
273 | *frequency, t_params->ranges[i - 1].limit); |
274 | *frequency = t_params->ranges[--i].limit; |
275 | } |
276 | *config = t_params->ranges[i].config; |
277 | *cb = t_params->ranges[i].cb; |
278 | |
279 | tuner_dbg("freq = %d.%02d (%d), range = %d, config = 0x%02x, cb = 0x%02x\n" , |
280 | *frequency / 16, *frequency % 16 * 100 / 16, *frequency, |
281 | i, *config, *cb); |
282 | |
283 | return i; |
284 | } |
285 | |
286 | /* ---------------------------------------------------------------------- */ |
287 | |
288 | static void simple_set_rf_input(struct dvb_frontend *fe, |
289 | u8 *config, u8 *cb, unsigned int rf) |
290 | { |
291 | struct tuner_simple_priv *priv = fe->tuner_priv; |
292 | |
293 | switch (priv->type) { |
294 | case TUNER_PHILIPS_TUV1236D: |
295 | switch (rf) { |
296 | case 1: |
297 | *cb |= 0x08; |
298 | break; |
299 | default: |
300 | *cb &= ~0x08; |
301 | break; |
302 | } |
303 | break; |
304 | case TUNER_PHILIPS_FCV1236D: |
305 | switch (rf) { |
306 | case 1: |
307 | *cb |= 0x01; |
308 | break; |
309 | default: |
310 | *cb &= ~0x01; |
311 | break; |
312 | } |
313 | break; |
314 | default: |
315 | break; |
316 | } |
317 | } |
318 | |
319 | static int simple_std_setup(struct dvb_frontend *fe, |
320 | struct analog_parameters *params, |
321 | u8 *config, u8 *cb) |
322 | { |
323 | struct tuner_simple_priv *priv = fe->tuner_priv; |
324 | int rc; |
325 | |
326 | /* tv norm specific stuff for multi-norm tuners */ |
327 | switch (priv->type) { |
328 | case TUNER_PHILIPS_SECAM: /* FI1216MF */ |
329 | /* 0x01 -> ??? no change ??? */ |
330 | /* 0x02 -> PAL BDGHI / SECAM L */ |
331 | /* 0x04 -> ??? PAL others / SECAM others ??? */ |
332 | *cb &= ~0x03; |
333 | if (params->std & V4L2_STD_SECAM_L) |
334 | /* also valid for V4L2_STD_SECAM */ |
335 | *cb |= PHILIPS_MF_SET_STD_L; |
336 | else if (params->std & V4L2_STD_SECAM_LC) |
337 | *cb |= PHILIPS_MF_SET_STD_LC; |
338 | else /* V4L2_STD_B|V4L2_STD_GH */ |
339 | *cb |= PHILIPS_MF_SET_STD_BG; |
340 | break; |
341 | |
342 | case TUNER_TEMIC_4046FM5: |
343 | *cb &= ~0x0f; |
344 | |
345 | if (params->std & V4L2_STD_PAL_BG) { |
346 | *cb |= TEMIC_SET_PAL_BG; |
347 | |
348 | } else if (params->std & V4L2_STD_PAL_I) { |
349 | *cb |= TEMIC_SET_PAL_I; |
350 | |
351 | } else if (params->std & V4L2_STD_PAL_DK) { |
352 | *cb |= TEMIC_SET_PAL_DK; |
353 | |
354 | } else if (params->std & V4L2_STD_SECAM_L) { |
355 | *cb |= TEMIC_SET_PAL_L; |
356 | |
357 | } |
358 | break; |
359 | |
360 | case TUNER_PHILIPS_FQ1216ME: |
361 | *cb &= ~0x0f; |
362 | |
363 | if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) { |
364 | *cb |= PHILIPS_SET_PAL_BGDK; |
365 | |
366 | } else if (params->std & V4L2_STD_PAL_I) { |
367 | *cb |= PHILIPS_SET_PAL_I; |
368 | |
369 | } else if (params->std & V4L2_STD_SECAM_L) { |
370 | *cb |= PHILIPS_SET_PAL_L; |
371 | |
372 | } |
373 | break; |
374 | |
375 | case TUNER_PHILIPS_FCV1236D: |
376 | /* 0x00 -> ATSC antenna input 1 */ |
377 | /* 0x01 -> ATSC antenna input 2 */ |
378 | /* 0x02 -> NTSC antenna input 1 */ |
379 | /* 0x03 -> NTSC antenna input 2 */ |
380 | *cb &= ~0x03; |
381 | if (!(params->std & V4L2_STD_ATSC)) |
382 | *cb |= 2; |
383 | break; |
384 | |
385 | case TUNER_MICROTUNE_4042FI5: |
386 | /* Set the charge pump for fast tuning */ |
387 | *config |= TUNER_CHARGE_PUMP; |
388 | break; |
389 | |
390 | case TUNER_PHILIPS_TUV1236D: |
391 | { |
392 | struct tuner_i2c_props i2c = priv->i2c_props; |
393 | /* 0x40 -> ATSC antenna input 1 */ |
394 | /* 0x48 -> ATSC antenna input 2 */ |
395 | /* 0x00 -> NTSC antenna input 1 */ |
396 | /* 0x08 -> NTSC antenna input 2 */ |
397 | u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00}; |
398 | *cb &= ~0x40; |
399 | if (params->std & V4L2_STD_ATSC) { |
400 | *cb |= 0x40; |
401 | buffer[1] = 0x04; |
402 | } |
403 | /* set to the correct mode (analog or digital) */ |
404 | i2c.addr = 0x0a; |
405 | rc = tuner_i2c_xfer_send(props: &i2c, buf: &buffer[0], len: 2); |
406 | if (2 != rc) |
407 | tuner_warn("i2c i/o error: rc == %d (should be 2)\n" , |
408 | rc); |
409 | rc = tuner_i2c_xfer_send(props: &i2c, buf: &buffer[2], len: 2); |
410 | if (2 != rc) |
411 | tuner_warn("i2c i/o error: rc == %d (should be 2)\n" , |
412 | rc); |
413 | break; |
414 | } |
415 | } |
416 | if (atv_input[priv->nr]) |
417 | simple_set_rf_input(fe, config, cb, rf: atv_input[priv->nr]); |
418 | |
419 | return 0; |
420 | } |
421 | |
422 | static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux) |
423 | { |
424 | struct tuner_simple_priv *priv = fe->tuner_priv; |
425 | int rc; |
426 | u8 buffer[2]; |
427 | |
428 | buffer[0] = (config & ~0x38) | 0x18; |
429 | buffer[1] = aux; |
430 | |
431 | tuner_dbg("setting aux byte: 0x%02x 0x%02x\n" , buffer[0], buffer[1]); |
432 | |
433 | rc = tuner_i2c_xfer_send(props: &priv->i2c_props, buf: buffer, len: 2); |
434 | if (2 != rc) |
435 | tuner_warn("i2c i/o error: rc == %d (should be 2)\n" , rc); |
436 | |
437 | return rc == 2 ? 0 : rc; |
438 | } |
439 | |
440 | static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer, |
441 | u16 div, u8 config, u8 cb) |
442 | { |
443 | struct tuner_simple_priv *priv = fe->tuner_priv; |
444 | int rc; |
445 | |
446 | switch (priv->type) { |
447 | case TUNER_LG_TDVS_H06XF: |
448 | simple_set_aux_byte(fe, config, aux: 0x20); |
449 | break; |
450 | case TUNER_PHILIPS_FQ1216LME_MK3: |
451 | simple_set_aux_byte(fe, config, aux: 0x60); /* External AGC */ |
452 | break; |
453 | case TUNER_MICROTUNE_4042FI5: |
454 | { |
455 | /* FIXME - this may also work for other tuners */ |
456 | unsigned long timeout = jiffies + msecs_to_jiffies(m: 1); |
457 | u8 status_byte = 0; |
458 | |
459 | /* Wait until the PLL locks */ |
460 | for (;;) { |
461 | if (time_after(jiffies, timeout)) |
462 | return 0; |
463 | rc = tuner_i2c_xfer_recv(props: &priv->i2c_props, |
464 | buf: &status_byte, len: 1); |
465 | if (1 != rc) { |
466 | tuner_warn("i2c i/o read error: rc == %d (should be 1)\n" , |
467 | rc); |
468 | break; |
469 | } |
470 | if (status_byte & TUNER_PLL_LOCKED) |
471 | break; |
472 | udelay(10); |
473 | } |
474 | |
475 | /* Set the charge pump for optimized phase noise figure */ |
476 | config &= ~TUNER_CHARGE_PUMP; |
477 | buffer[0] = (div>>8) & 0x7f; |
478 | buffer[1] = div & 0xff; |
479 | buffer[2] = config; |
480 | buffer[3] = cb; |
481 | tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n" , |
482 | buffer[0], buffer[1], buffer[2], buffer[3]); |
483 | |
484 | rc = tuner_i2c_xfer_send(props: &priv->i2c_props, buf: buffer, len: 4); |
485 | if (4 != rc) |
486 | tuner_warn("i2c i/o error: rc == %d (should be 4)\n" , |
487 | rc); |
488 | break; |
489 | } |
490 | } |
491 | |
492 | return 0; |
493 | } |
494 | |
495 | static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer) |
496 | { |
497 | struct tuner_simple_priv *priv = fe->tuner_priv; |
498 | |
499 | switch (priv->type) { |
500 | case TUNER_TENA_9533_DI: |
501 | case TUNER_YMEC_TVF_5533MF: |
502 | tuner_dbg("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n" ); |
503 | return -EINVAL; |
504 | case TUNER_PHILIPS_FM1216ME_MK3: |
505 | case TUNER_PHILIPS_FM1236_MK3: |
506 | case TUNER_PHILIPS_FMD1216ME_MK3: |
507 | case TUNER_PHILIPS_FMD1216MEX_MK3: |
508 | case TUNER_LG_NTSC_TAPE: |
509 | case TUNER_PHILIPS_FM1256_IH3: |
510 | case TUNER_TCL_MF02GIP_5N: |
511 | buffer[3] = 0x19; |
512 | break; |
513 | case TUNER_PHILIPS_FM1216MK5: |
514 | buffer[2] = 0x88; |
515 | buffer[3] = 0x09; |
516 | break; |
517 | case TUNER_TNF_5335MF: |
518 | buffer[3] = 0x11; |
519 | break; |
520 | case TUNER_LG_PAL_FM: |
521 | buffer[3] = 0xa5; |
522 | break; |
523 | case TUNER_THOMSON_DTT761X: |
524 | buffer[3] = 0x39; |
525 | break; |
526 | case TUNER_PHILIPS_FQ1216LME_MK3: |
527 | case TUNER_PHILIPS_FQ1236_MK5: |
528 | tuner_err("This tuner doesn't have FM\n" ); |
529 | /* Set the low band for sanity, since it covers 88-108 MHz */ |
530 | buffer[3] = 0x01; |
531 | break; |
532 | case TUNER_MICROTUNE_4049FM5: |
533 | default: |
534 | buffer[3] = 0xa4; |
535 | break; |
536 | } |
537 | |
538 | return 0; |
539 | } |
540 | |
541 | /* ---------------------------------------------------------------------- */ |
542 | |
543 | static int simple_set_tv_freq(struct dvb_frontend *fe, |
544 | struct analog_parameters *params) |
545 | { |
546 | struct tuner_simple_priv *priv = fe->tuner_priv; |
547 | u8 config, cb; |
548 | u16 div; |
549 | u8 buffer[4]; |
550 | int rc, IFPCoff, i; |
551 | enum param_type desired_type; |
552 | struct tuner_params *t_params; |
553 | |
554 | /* IFPCoff = Video Intermediate Frequency - Vif: |
555 | 940 =16*58.75 NTSC/J (Japan) |
556 | 732 =16*45.75 M/N STD |
557 | 704 =16*44 ATSC (at DVB code) |
558 | 632 =16*39.50 I U.K. |
559 | 622.4=16*38.90 B/G D/K I, L STD |
560 | 592 =16*37.00 D China |
561 | 590 =16.36.875 B Australia |
562 | 543.2=16*33.95 L' STD |
563 | 171.2=16*10.70 FM Radio (at set_radio_freq) |
564 | */ |
565 | |
566 | if (params->std == V4L2_STD_NTSC_M_JP) { |
567 | IFPCoff = 940; |
568 | desired_type = TUNER_PARAM_TYPE_NTSC; |
569 | } else if ((params->std & V4L2_STD_MN) && |
570 | !(params->std & ~V4L2_STD_MN)) { |
571 | IFPCoff = 732; |
572 | desired_type = TUNER_PARAM_TYPE_NTSC; |
573 | } else if (params->std == V4L2_STD_SECAM_LC) { |
574 | IFPCoff = 543; |
575 | desired_type = TUNER_PARAM_TYPE_SECAM; |
576 | } else { |
577 | IFPCoff = 623; |
578 | desired_type = TUNER_PARAM_TYPE_PAL; |
579 | } |
580 | |
581 | t_params = simple_tuner_params(fe, desired_type); |
582 | |
583 | i = simple_config_lookup(fe, t_params, frequency: ¶ms->frequency, |
584 | config: &config, cb: &cb); |
585 | |
586 | div = params->frequency + IFPCoff + offset; |
587 | |
588 | tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n" , |
589 | params->frequency / 16, params->frequency % 16 * 100 / 16, |
590 | IFPCoff / 16, IFPCoff % 16 * 100 / 16, |
591 | offset / 16, offset % 16 * 100 / 16, div); |
592 | |
593 | /* tv norm specific stuff for multi-norm tuners */ |
594 | simple_std_setup(fe, params, config: &config, cb: &cb); |
595 | |
596 | if (t_params->cb_first_if_lower_freq && div < priv->last_div) { |
597 | buffer[0] = config; |
598 | buffer[1] = cb; |
599 | buffer[2] = (div>>8) & 0x7f; |
600 | buffer[3] = div & 0xff; |
601 | } else { |
602 | buffer[0] = (div>>8) & 0x7f; |
603 | buffer[1] = div & 0xff; |
604 | buffer[2] = config; |
605 | buffer[3] = cb; |
606 | } |
607 | priv->last_div = div; |
608 | if (t_params->has_tda9887) { |
609 | struct v4l2_priv_tun_config tda9887_cfg; |
610 | int tda_config = 0; |
611 | int is_secam_l = (params->std & (V4L2_STD_SECAM_L | |
612 | V4L2_STD_SECAM_LC)) && |
613 | !(params->std & ~(V4L2_STD_SECAM_L | |
614 | V4L2_STD_SECAM_LC)); |
615 | |
616 | tda9887_cfg.tuner = TUNER_TDA9887; |
617 | tda9887_cfg.priv = &tda_config; |
618 | |
619 | if (params->std == V4L2_STD_SECAM_LC) { |
620 | if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc) |
621 | tda_config |= TDA9887_PORT1_ACTIVE; |
622 | if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc) |
623 | tda_config |= TDA9887_PORT2_ACTIVE; |
624 | } else { |
625 | if (t_params->port1_active) |
626 | tda_config |= TDA9887_PORT1_ACTIVE; |
627 | if (t_params->port2_active) |
628 | tda_config |= TDA9887_PORT2_ACTIVE; |
629 | } |
630 | if (t_params->intercarrier_mode) |
631 | tda_config |= TDA9887_INTERCARRIER; |
632 | if (is_secam_l) { |
633 | if (i == 0 && t_params->default_top_secam_low) |
634 | tda_config |= TDA9887_TOP(t_params->default_top_secam_low); |
635 | else if (i == 1 && t_params->default_top_secam_mid) |
636 | tda_config |= TDA9887_TOP(t_params->default_top_secam_mid); |
637 | else if (t_params->default_top_secam_high) |
638 | tda_config |= TDA9887_TOP(t_params->default_top_secam_high); |
639 | } else { |
640 | if (i == 0 && t_params->default_top_low) |
641 | tda_config |= TDA9887_TOP(t_params->default_top_low); |
642 | else if (i == 1 && t_params->default_top_mid) |
643 | tda_config |= TDA9887_TOP(t_params->default_top_mid); |
644 | else if (t_params->default_top_high) |
645 | tda_config |= TDA9887_TOP(t_params->default_top_high); |
646 | } |
647 | if (t_params->default_pll_gating_18) |
648 | tda_config |= TDA9887_GATING_18; |
649 | i2c_clients_command(adap: priv->i2c_props.adap, TUNER_SET_CONFIG, |
650 | arg: &tda9887_cfg); |
651 | } |
652 | tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n" , |
653 | buffer[0], buffer[1], buffer[2], buffer[3]); |
654 | |
655 | rc = tuner_i2c_xfer_send(props: &priv->i2c_props, buf: buffer, len: 4); |
656 | if (4 != rc) |
657 | tuner_warn("i2c i/o error: rc == %d (should be 4)\n" , rc); |
658 | |
659 | simple_post_tune(fe, buffer: &buffer[0], div, config, cb); |
660 | |
661 | return 0; |
662 | } |
663 | |
664 | static int simple_set_radio_freq(struct dvb_frontend *fe, |
665 | struct analog_parameters *params) |
666 | { |
667 | struct tunertype *tun; |
668 | struct tuner_simple_priv *priv = fe->tuner_priv; |
669 | u8 buffer[4]; |
670 | u16 div; |
671 | int rc, j; |
672 | struct tuner_params *t_params; |
673 | unsigned int freq = params->frequency; |
674 | bool mono = params->audmode == V4L2_TUNER_MODE_MONO; |
675 | |
676 | tun = priv->tun; |
677 | |
678 | for (j = tun->count-1; j > 0; j--) |
679 | if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO) |
680 | break; |
681 | /* default t_params (j=0) will be used if desired type wasn't found */ |
682 | t_params = &tun->params[j]; |
683 | |
684 | /* Select Radio 1st IF used */ |
685 | switch (t_params->radio_if) { |
686 | case 0: /* 10.7 MHz */ |
687 | freq += (unsigned int)(10.7*16000); |
688 | break; |
689 | case 1: /* 33.3 MHz */ |
690 | freq += (unsigned int)(33.3*16000); |
691 | break; |
692 | case 2: /* 41.3 MHz */ |
693 | freq += (unsigned int)(41.3*16000); |
694 | break; |
695 | default: |
696 | tuner_warn("Unsupported radio_if value %d\n" , |
697 | t_params->radio_if); |
698 | return 0; |
699 | } |
700 | |
701 | buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) | |
702 | TUNER_RATIO_SELECT_50; /* 50 kHz step */ |
703 | |
704 | /* Bandswitch byte */ |
705 | if (simple_radio_bandswitch(fe, buffer: &buffer[0])) |
706 | return 0; |
707 | |
708 | /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps |
709 | freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) = |
710 | freq * (1/800) */ |
711 | div = (freq + 400) / 800; |
712 | |
713 | if (t_params->cb_first_if_lower_freq && div < priv->last_div) { |
714 | buffer[0] = buffer[2]; |
715 | buffer[1] = buffer[3]; |
716 | buffer[2] = (div>>8) & 0x7f; |
717 | buffer[3] = div & 0xff; |
718 | } else { |
719 | buffer[0] = (div>>8) & 0x7f; |
720 | buffer[1] = div & 0xff; |
721 | } |
722 | |
723 | tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n" , |
724 | buffer[0], buffer[1], buffer[2], buffer[3]); |
725 | priv->last_div = div; |
726 | |
727 | if (t_params->has_tda9887) { |
728 | int config = 0; |
729 | struct v4l2_priv_tun_config tda9887_cfg; |
730 | |
731 | tda9887_cfg.tuner = TUNER_TDA9887; |
732 | tda9887_cfg.priv = &config; |
733 | |
734 | if (t_params->port1_active && |
735 | !t_params->port1_fm_high_sensitivity) |
736 | config |= TDA9887_PORT1_ACTIVE; |
737 | if (t_params->port2_active && |
738 | !t_params->port2_fm_high_sensitivity) |
739 | config |= TDA9887_PORT2_ACTIVE; |
740 | if (t_params->intercarrier_mode) |
741 | config |= TDA9887_INTERCARRIER; |
742 | if (t_params->port1_set_for_fm_mono && mono) |
743 | config &= ~TDA9887_PORT1_ACTIVE; |
744 | if (t_params->fm_gain_normal) |
745 | config |= TDA9887_GAIN_NORMAL; |
746 | if (t_params->radio_if == 2) |
747 | config |= TDA9887_RIF_41_3; |
748 | i2c_clients_command(adap: priv->i2c_props.adap, TUNER_SET_CONFIG, |
749 | arg: &tda9887_cfg); |
750 | } |
751 | rc = tuner_i2c_xfer_send(props: &priv->i2c_props, buf: buffer, len: 4); |
752 | if (4 != rc) |
753 | tuner_warn("i2c i/o error: rc == %d (should be 4)\n" , rc); |
754 | |
755 | /* Write AUX byte */ |
756 | switch (priv->type) { |
757 | case TUNER_PHILIPS_FM1216ME_MK3: |
758 | buffer[2] = 0x98; |
759 | buffer[3] = 0x20; /* set TOP AGC */ |
760 | rc = tuner_i2c_xfer_send(props: &priv->i2c_props, buf: buffer, len: 4); |
761 | if (4 != rc) |
762 | tuner_warn("i2c i/o error: rc == %d (should be 4)\n" , rc); |
763 | break; |
764 | } |
765 | |
766 | return 0; |
767 | } |
768 | |
769 | static int simple_set_params(struct dvb_frontend *fe, |
770 | struct analog_parameters *params) |
771 | { |
772 | struct tuner_simple_priv *priv = fe->tuner_priv; |
773 | int ret = -EINVAL; |
774 | |
775 | if (priv->i2c_props.adap == NULL) |
776 | return -EINVAL; |
777 | |
778 | switch (params->mode) { |
779 | case V4L2_TUNER_RADIO: |
780 | priv->radio_mode = true; |
781 | ret = simple_set_radio_freq(fe, params); |
782 | priv->frequency = params->frequency * 125 / 2; |
783 | break; |
784 | case V4L2_TUNER_ANALOG_TV: |
785 | case V4L2_TUNER_DIGITAL_TV: |
786 | priv->radio_mode = false; |
787 | ret = simple_set_tv_freq(fe, params); |
788 | priv->frequency = params->frequency * 62500; |
789 | break; |
790 | } |
791 | priv->bandwidth = 0; |
792 | |
793 | return ret; |
794 | } |
795 | |
796 | static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf, |
797 | const u32 delsys, |
798 | const u32 frequency, |
799 | const u32 bandwidth) |
800 | { |
801 | struct tuner_simple_priv *priv = fe->tuner_priv; |
802 | |
803 | switch (priv->type) { |
804 | case TUNER_PHILIPS_FMD1216ME_MK3: |
805 | case TUNER_PHILIPS_FMD1216MEX_MK3: |
806 | if (bandwidth == 8000000 && |
807 | frequency >= 158870000) |
808 | buf[3] |= 0x08; |
809 | break; |
810 | case TUNER_PHILIPS_TD1316: |
811 | /* determine band */ |
812 | buf[3] |= (frequency < 161000000) ? 1 : |
813 | (frequency < 444000000) ? 2 : 4; |
814 | |
815 | /* setup PLL filter */ |
816 | if (bandwidth == 8000000) |
817 | buf[3] |= 1 << 3; |
818 | break; |
819 | case TUNER_PHILIPS_TUV1236D: |
820 | case TUNER_PHILIPS_FCV1236D: |
821 | { |
822 | unsigned int new_rf; |
823 | |
824 | if (dtv_input[priv->nr]) |
825 | new_rf = dtv_input[priv->nr]; |
826 | else |
827 | switch (delsys) { |
828 | case SYS_DVBC_ANNEX_B: |
829 | new_rf = 1; |
830 | break; |
831 | case SYS_ATSC: |
832 | default: |
833 | new_rf = 0; |
834 | break; |
835 | } |
836 | simple_set_rf_input(fe, config: &buf[2], cb: &buf[3], rf: new_rf); |
837 | break; |
838 | } |
839 | default: |
840 | break; |
841 | } |
842 | } |
843 | |
844 | static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf, |
845 | const u32 delsys, |
846 | const u32 freq, |
847 | const u32 bw) |
848 | { |
849 | /* This function returns the tuned frequency on success, 0 on error */ |
850 | struct tuner_simple_priv *priv = fe->tuner_priv; |
851 | struct tunertype *tun = priv->tun; |
852 | struct tuner_params *t_params; |
853 | u8 config, cb; |
854 | u32 div; |
855 | int ret; |
856 | u32 frequency = freq / 62500; |
857 | |
858 | if (!tun->stepsize) { |
859 | /* tuner-core was loaded before the digital tuner was |
860 | * configured and somehow picked the wrong tuner type */ |
861 | tuner_err("attempt to treat tuner %d (%s) as digital tuner without stepsize defined.\n" , |
862 | priv->type, priv->tun->name); |
863 | return 0; /* failure */ |
864 | } |
865 | |
866 | t_params = simple_tuner_params(fe, desired_type: TUNER_PARAM_TYPE_DIGITAL); |
867 | ret = simple_config_lookup(fe, t_params, frequency: &frequency, config: &config, cb: &cb); |
868 | if (ret < 0) |
869 | return 0; /* failure */ |
870 | |
871 | div = ((frequency + t_params->iffreq) * 62500 + offset + |
872 | tun->stepsize/2) / tun->stepsize; |
873 | |
874 | buf[0] = div >> 8; |
875 | buf[1] = div & 0xff; |
876 | buf[2] = config; |
877 | buf[3] = cb; |
878 | |
879 | simple_set_dvb(fe, buf, delsys, frequency: freq, bandwidth: bw); |
880 | |
881 | tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n" , |
882 | tun->name, div, buf[0], buf[1], buf[2], buf[3]); |
883 | |
884 | /* calculate the frequency we set it to */ |
885 | return (div * tun->stepsize) - t_params->iffreq; |
886 | } |
887 | |
888 | static int simple_dvb_calc_regs(struct dvb_frontend *fe, |
889 | u8 *buf, int buf_len) |
890 | { |
891 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
892 | u32 delsys = c->delivery_system; |
893 | u32 bw = c->bandwidth_hz; |
894 | struct tuner_simple_priv *priv = fe->tuner_priv; |
895 | u32 frequency; |
896 | |
897 | if (buf_len < 5) |
898 | return -EINVAL; |
899 | |
900 | frequency = simple_dvb_configure(fe, buf: buf+1, delsys, freq: c->frequency, bw); |
901 | if (frequency == 0) |
902 | return -EINVAL; |
903 | |
904 | buf[0] = priv->i2c_props.addr; |
905 | |
906 | priv->frequency = frequency; |
907 | priv->bandwidth = c->bandwidth_hz; |
908 | |
909 | return 5; |
910 | } |
911 | |
912 | static int simple_dvb_set_params(struct dvb_frontend *fe) |
913 | { |
914 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
915 | u32 delsys = c->delivery_system; |
916 | u32 bw = c->bandwidth_hz; |
917 | u32 freq = c->frequency; |
918 | struct tuner_simple_priv *priv = fe->tuner_priv; |
919 | u32 frequency; |
920 | u32 prev_freq, prev_bw; |
921 | int ret; |
922 | u8 buf[5]; |
923 | |
924 | if (priv->i2c_props.adap == NULL) |
925 | return -EINVAL; |
926 | |
927 | prev_freq = priv->frequency; |
928 | prev_bw = priv->bandwidth; |
929 | |
930 | frequency = simple_dvb_configure(fe, buf: buf+1, delsys, freq, bw); |
931 | if (frequency == 0) |
932 | return -EINVAL; |
933 | |
934 | buf[0] = priv->i2c_props.addr; |
935 | |
936 | priv->frequency = frequency; |
937 | priv->bandwidth = bw; |
938 | |
939 | /* put analog demod in standby when tuning digital */ |
940 | if (fe->ops.analog_ops.standby) |
941 | fe->ops.analog_ops.standby(fe); |
942 | |
943 | if (fe->ops.i2c_gate_ctrl) |
944 | fe->ops.i2c_gate_ctrl(fe, 1); |
945 | |
946 | /* buf[0] contains the i2c address, but * |
947 | * we already have it in i2c_props.addr */ |
948 | ret = tuner_i2c_xfer_send(props: &priv->i2c_props, buf: buf+1, len: 4); |
949 | if (ret != 4) |
950 | goto fail; |
951 | |
952 | return 0; |
953 | fail: |
954 | /* calc_regs sets frequency and bandwidth. if we failed, unset them */ |
955 | priv->frequency = prev_freq; |
956 | priv->bandwidth = prev_bw; |
957 | |
958 | return ret; |
959 | } |
960 | |
961 | static int simple_init(struct dvb_frontend *fe) |
962 | { |
963 | struct tuner_simple_priv *priv = fe->tuner_priv; |
964 | |
965 | if (priv->i2c_props.adap == NULL) |
966 | return -EINVAL; |
967 | |
968 | if (priv->tun->initdata) { |
969 | int ret; |
970 | |
971 | if (fe->ops.i2c_gate_ctrl) |
972 | fe->ops.i2c_gate_ctrl(fe, 1); |
973 | |
974 | ret = tuner_i2c_xfer_send(props: &priv->i2c_props, |
975 | buf: priv->tun->initdata + 1, |
976 | len: priv->tun->initdata[0]); |
977 | if (ret != priv->tun->initdata[0]) |
978 | return ret; |
979 | } |
980 | |
981 | return 0; |
982 | } |
983 | |
984 | static int simple_sleep(struct dvb_frontend *fe) |
985 | { |
986 | struct tuner_simple_priv *priv = fe->tuner_priv; |
987 | |
988 | if (priv->i2c_props.adap == NULL) |
989 | return -EINVAL; |
990 | |
991 | if (priv->tun->sleepdata) { |
992 | int ret; |
993 | |
994 | if (fe->ops.i2c_gate_ctrl) |
995 | fe->ops.i2c_gate_ctrl(fe, 1); |
996 | |
997 | ret = tuner_i2c_xfer_send(props: &priv->i2c_props, |
998 | buf: priv->tun->sleepdata + 1, |
999 | len: priv->tun->sleepdata[0]); |
1000 | if (ret != priv->tun->sleepdata[0]) |
1001 | return ret; |
1002 | } |
1003 | |
1004 | return 0; |
1005 | } |
1006 | |
1007 | static void simple_release(struct dvb_frontend *fe) |
1008 | { |
1009 | struct tuner_simple_priv *priv = fe->tuner_priv; |
1010 | |
1011 | mutex_lock(&tuner_simple_list_mutex); |
1012 | |
1013 | if (priv) |
1014 | hybrid_tuner_release_state(priv); |
1015 | |
1016 | mutex_unlock(lock: &tuner_simple_list_mutex); |
1017 | |
1018 | fe->tuner_priv = NULL; |
1019 | } |
1020 | |
1021 | static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency) |
1022 | { |
1023 | struct tuner_simple_priv *priv = fe->tuner_priv; |
1024 | *frequency = priv->frequency; |
1025 | return 0; |
1026 | } |
1027 | |
1028 | static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) |
1029 | { |
1030 | struct tuner_simple_priv *priv = fe->tuner_priv; |
1031 | *bandwidth = priv->bandwidth; |
1032 | return 0; |
1033 | } |
1034 | |
1035 | static const struct dvb_tuner_ops simple_tuner_ops = { |
1036 | .init = simple_init, |
1037 | .sleep = simple_sleep, |
1038 | .set_analog_params = simple_set_params, |
1039 | .set_params = simple_dvb_set_params, |
1040 | .calc_regs = simple_dvb_calc_regs, |
1041 | .release = simple_release, |
1042 | .get_frequency = simple_get_frequency, |
1043 | .get_bandwidth = simple_get_bandwidth, |
1044 | .get_status = simple_get_status, |
1045 | .get_rf_strength = simple_get_rf_strength, |
1046 | }; |
1047 | |
1048 | struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe, |
1049 | struct i2c_adapter *i2c_adap, |
1050 | u8 i2c_addr, |
1051 | unsigned int type) |
1052 | { |
1053 | struct tuner_simple_priv *priv = NULL; |
1054 | int instance; |
1055 | |
1056 | if (type >= tuner_count) { |
1057 | printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n" , |
1058 | __func__, type, tuner_count-1); |
1059 | return NULL; |
1060 | } |
1061 | |
1062 | /* If i2c_adap is set, check that the tuner is at the correct address. |
1063 | * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly |
1064 | * by the digital demod via calc_regs. |
1065 | */ |
1066 | if (i2c_adap != NULL) { |
1067 | u8 b[1]; |
1068 | struct i2c_msg msg = { |
1069 | .addr = i2c_addr, .flags = I2C_M_RD, |
1070 | .buf = b, .len = 1, |
1071 | }; |
1072 | |
1073 | if (fe->ops.i2c_gate_ctrl) |
1074 | fe->ops.i2c_gate_ctrl(fe, 1); |
1075 | |
1076 | if (1 != i2c_transfer(adap: i2c_adap, msgs: &msg, num: 1)) |
1077 | printk(KERN_WARNING "tuner-simple %d-%04x: unable to probe %s, proceeding anyway." , |
1078 | i2c_adapter_id(i2c_adap), i2c_addr, |
1079 | tuners[type].name); |
1080 | |
1081 | if (fe->ops.i2c_gate_ctrl) |
1082 | fe->ops.i2c_gate_ctrl(fe, 0); |
1083 | } |
1084 | |
1085 | mutex_lock(&tuner_simple_list_mutex); |
1086 | |
1087 | instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv, |
1088 | hybrid_tuner_instance_list, |
1089 | i2c_adap, i2c_addr, |
1090 | "tuner-simple" ); |
1091 | switch (instance) { |
1092 | case 0: |
1093 | mutex_unlock(lock: &tuner_simple_list_mutex); |
1094 | return NULL; |
1095 | case 1: |
1096 | fe->tuner_priv = priv; |
1097 | |
1098 | priv->type = type; |
1099 | priv->tun = &tuners[type]; |
1100 | priv->nr = simple_devcount++; |
1101 | break; |
1102 | default: |
1103 | fe->tuner_priv = priv; |
1104 | break; |
1105 | } |
1106 | |
1107 | mutex_unlock(lock: &tuner_simple_list_mutex); |
1108 | |
1109 | memcpy(&fe->ops.tuner_ops, &simple_tuner_ops, |
1110 | sizeof(struct dvb_tuner_ops)); |
1111 | |
1112 | if (type != priv->type) |
1113 | tuner_warn("couldn't set type to %d. Using %d (%s) instead\n" , |
1114 | type, priv->type, priv->tun->name); |
1115 | else |
1116 | tuner_info("type set to %d (%s)\n" , |
1117 | priv->type, priv->tun->name); |
1118 | |
1119 | if ((debug) || ((atv_input[priv->nr] > 0) || |
1120 | (dtv_input[priv->nr] > 0))) { |
1121 | if (0 == atv_input[priv->nr]) |
1122 | tuner_info("tuner %d atv rf input will be autoselected\n" , |
1123 | priv->nr); |
1124 | else |
1125 | tuner_info("tuner %d atv rf input will be set to input %d (insmod option)\n" , |
1126 | priv->nr, atv_input[priv->nr]); |
1127 | if (0 == dtv_input[priv->nr]) |
1128 | tuner_info("tuner %d dtv rf input will be autoselected\n" , |
1129 | priv->nr); |
1130 | else |
1131 | tuner_info("tuner %d dtv rf input will be set to input %d (insmod option)\n" , |
1132 | priv->nr, dtv_input[priv->nr]); |
1133 | } |
1134 | |
1135 | strscpy(p: fe->ops.tuner_ops.info.name, q: priv->tun->name, |
1136 | size: sizeof(fe->ops.tuner_ops.info.name)); |
1137 | |
1138 | return fe; |
1139 | } |
1140 | EXPORT_SYMBOL_GPL(simple_tuner_attach); |
1141 | |
1142 | MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver" ); |
1143 | MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer" ); |
1144 | MODULE_LICENSE("GPL" ); |
1145 | |