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Merge branch 'processor-procfs-2.6.32' into release
[mirror_ubuntu-artful-kernel.git] / drivers / media / common / tuners / tuner-simple.c
1 /*
2 * i2c tv tuner chip device driver
3 * controls all those simple 4-control-bytes style tuners.
4 *
5 * This "tuner-simple" module was split apart from the original "tuner" module.
6 */
7 #include <linux/delay.h>
8 #include <linux/i2c.h>
9 #include <linux/videodev2.h>
10 #include <media/tuner.h>
11 #include <media/v4l2-common.h>
12 #include <media/tuner-types.h>
13 #include "tuner-i2c.h"
14 #include "tuner-simple.h"
15
16 static int debug;
17 module_param(debug, int, 0644);
18 MODULE_PARM_DESC(debug, "enable verbose debug messages");
19
20 #define TUNER_SIMPLE_MAX 64
21 static unsigned int simple_devcount;
22
23 static int offset;
24 module_param(offset, int, 0664);
25 MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
26
27 static unsigned int atv_input[TUNER_SIMPLE_MAX] = \
28 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
29 static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \
30 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
31 module_param_array(atv_input, int, NULL, 0644);
32 module_param_array(dtv_input, int, NULL, 0644);
33 MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect");
34 MODULE_PARM_DESC(dtv_input, "specify dtv rf input, 0 for autoselect");
35
36 /* ---------------------------------------------------------------------- */
37
38 /* tv standard selection for Temic 4046 FM5
39 this value takes the low bits of control byte 2
40 from datasheet Rev.01, Feb.00
41 standard BG I L L2 D
42 picture IF 38.9 38.9 38.9 33.95 38.9
43 sound 1 33.4 32.9 32.4 40.45 32.4
44 sound 2 33.16
45 NICAM 33.05 32.348 33.05 33.05
46 */
47 #define TEMIC_SET_PAL_I 0x05
48 #define TEMIC_SET_PAL_DK 0x09
49 #define TEMIC_SET_PAL_L 0x0a /* SECAM ? */
50 #define TEMIC_SET_PAL_L2 0x0b /* change IF ! */
51 #define TEMIC_SET_PAL_BG 0x0c
52
53 /* tv tuner system standard selection for Philips FQ1216ME
54 this value takes the low bits of control byte 2
55 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
56 standard BG DK I L L`
57 picture carrier 38.90 38.90 38.90 38.90 33.95
58 colour 34.47 34.47 34.47 34.47 38.38
59 sound 1 33.40 32.40 32.90 32.40 40.45
60 sound 2 33.16 - - - -
61 NICAM 33.05 33.05 32.35 33.05 39.80
62 */
63 #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
64 #define PHILIPS_SET_PAL_BGDK 0x09
65 #define PHILIPS_SET_PAL_L2 0x0a
66 #define PHILIPS_SET_PAL_L 0x0b
67
68 /* system switching for Philips FI1216MF MK2
69 from datasheet "1996 Jul 09",
70 standard BG L L'
71 picture carrier 38.90 38.90 33.95
72 colour 34.47 34.37 38.38
73 sound 1 33.40 32.40 40.45
74 sound 2 33.16 - -
75 NICAM 33.05 33.05 39.80
76 */
77 #define PHILIPS_MF_SET_STD_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
78 #define PHILIPS_MF_SET_STD_L 0x03 /* Used on Secam France */
79 #define PHILIPS_MF_SET_STD_LC 0x02 /* Used on SECAM L' */
80
81 /* Control byte */
82
83 #define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
84 #define TUNER_RATIO_SELECT_50 0x00
85 #define TUNER_RATIO_SELECT_32 0x02
86 #define TUNER_RATIO_SELECT_166 0x04
87 #define TUNER_RATIO_SELECT_62 0x06
88
89 #define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
90
91 /* Status byte */
92
93 #define TUNER_POR 0x80
94 #define TUNER_FL 0x40
95 #define TUNER_MODE 0x38
96 #define TUNER_AFC 0x07
97 #define TUNER_SIGNAL 0x07
98 #define TUNER_STEREO 0x10
99
100 #define TUNER_PLL_LOCKED 0x40
101 #define TUNER_STEREO_MK3 0x04
102
103 static DEFINE_MUTEX(tuner_simple_list_mutex);
104 static LIST_HEAD(hybrid_tuner_instance_list);
105
106 struct tuner_simple_priv {
107 unsigned int nr;
108 u16 last_div;
109
110 struct tuner_i2c_props i2c_props;
111 struct list_head hybrid_tuner_instance_list;
112
113 unsigned int type;
114 struct tunertype *tun;
115
116 u32 frequency;
117 u32 bandwidth;
118 };
119
120 /* ---------------------------------------------------------------------- */
121
122 static int tuner_read_status(struct dvb_frontend *fe)
123 {
124 struct tuner_simple_priv *priv = fe->tuner_priv;
125 unsigned char byte;
126
127 if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
128 return 0;
129
130 return byte;
131 }
132
133 static inline int tuner_signal(const int status)
134 {
135 return (status & TUNER_SIGNAL) << 13;
136 }
137
138 static inline int tuner_stereo(const int type, const int status)
139 {
140 switch (type) {
141 case TUNER_PHILIPS_FM1216ME_MK3:
142 case TUNER_PHILIPS_FM1236_MK3:
143 case TUNER_PHILIPS_FM1256_IH3:
144 case TUNER_LG_NTSC_TAPE:
145 case TUNER_TCL_MF02GIP_5N:
146 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
147 case TUNER_PHILIPS_FM1216MK5:
148 return status | TUNER_STEREO;
149 default:
150 return status & TUNER_STEREO;
151 }
152 }
153
154 static inline int tuner_islocked(const int status)
155 {
156 return (status & TUNER_FL);
157 }
158
159 static inline int tuner_afcstatus(const int status)
160 {
161 return (status & TUNER_AFC) - 2;
162 }
163
164
165 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
166 {
167 struct tuner_simple_priv *priv = fe->tuner_priv;
168 int tuner_status;
169
170 if (priv->i2c_props.adap == NULL)
171 return -EINVAL;
172
173 tuner_status = tuner_read_status(fe);
174
175 *status = 0;
176
177 if (tuner_islocked(tuner_status))
178 *status = TUNER_STATUS_LOCKED;
179 if (tuner_stereo(priv->type, tuner_status))
180 *status |= TUNER_STATUS_STEREO;
181
182 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
183
184 return 0;
185 }
186
187 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
188 {
189 struct tuner_simple_priv *priv = fe->tuner_priv;
190 int signal;
191
192 if (priv->i2c_props.adap == NULL)
193 return -EINVAL;
194
195 signal = tuner_signal(tuner_read_status(fe));
196
197 *strength = signal;
198
199 tuner_dbg("Signal strength: %d\n", signal);
200
201 return 0;
202 }
203
204 /* ---------------------------------------------------------------------- */
205
206 static inline char *tuner_param_name(enum param_type type)
207 {
208 char *name;
209
210 switch (type) {
211 case TUNER_PARAM_TYPE_RADIO:
212 name = "radio";
213 break;
214 case TUNER_PARAM_TYPE_PAL:
215 name = "pal";
216 break;
217 case TUNER_PARAM_TYPE_SECAM:
218 name = "secam";
219 break;
220 case TUNER_PARAM_TYPE_NTSC:
221 name = "ntsc";
222 break;
223 case TUNER_PARAM_TYPE_DIGITAL:
224 name = "digital";
225 break;
226 default:
227 name = "unknown";
228 break;
229 }
230 return name;
231 }
232
233 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
234 enum param_type desired_type)
235 {
236 struct tuner_simple_priv *priv = fe->tuner_priv;
237 struct tunertype *tun = priv->tun;
238 int i;
239
240 for (i = 0; i < tun->count; i++)
241 if (desired_type == tun->params[i].type)
242 break;
243
244 /* use default tuner params if desired_type not available */
245 if (i == tun->count) {
246 tuner_dbg("desired params (%s) undefined for tuner %d\n",
247 tuner_param_name(desired_type), priv->type);
248 i = 0;
249 }
250
251 tuner_dbg("using tuner params #%d (%s)\n", i,
252 tuner_param_name(tun->params[i].type));
253
254 return &tun->params[i];
255 }
256
257 static int simple_config_lookup(struct dvb_frontend *fe,
258 struct tuner_params *t_params,
259 unsigned *frequency, u8 *config, u8 *cb)
260 {
261 struct tuner_simple_priv *priv = fe->tuner_priv;
262 int i;
263
264 for (i = 0; i < t_params->count; i++) {
265 if (*frequency > t_params->ranges[i].limit)
266 continue;
267 break;
268 }
269 if (i == t_params->count) {
270 tuner_dbg("frequency out of range (%d > %d)\n",
271 *frequency, t_params->ranges[i - 1].limit);
272 *frequency = t_params->ranges[--i].limit;
273 }
274 *config = t_params->ranges[i].config;
275 *cb = t_params->ranges[i].cb;
276
277 tuner_dbg("freq = %d.%02d (%d), range = %d, "
278 "config = 0x%02x, cb = 0x%02x\n",
279 *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
280 i, *config, *cb);
281
282 return i;
283 }
284
285 /* ---------------------------------------------------------------------- */
286
287 static void simple_set_rf_input(struct dvb_frontend *fe,
288 u8 *config, u8 *cb, unsigned int rf)
289 {
290 struct tuner_simple_priv *priv = fe->tuner_priv;
291
292 switch (priv->type) {
293 case TUNER_PHILIPS_TUV1236D:
294 switch (rf) {
295 case 1:
296 *cb |= 0x08;
297 break;
298 default:
299 *cb &= ~0x08;
300 break;
301 }
302 break;
303 case TUNER_PHILIPS_FCV1236D:
304 switch (rf) {
305 case 1:
306 *cb |= 0x01;
307 break;
308 default:
309 *cb &= ~0x01;
310 break;
311 }
312 break;
313 default:
314 break;
315 }
316 }
317
318 static int simple_std_setup(struct dvb_frontend *fe,
319 struct analog_parameters *params,
320 u8 *config, u8 *cb)
321 {
322 struct tuner_simple_priv *priv = fe->tuner_priv;
323 int rc;
324
325 /* tv norm specific stuff for multi-norm tuners */
326 switch (priv->type) {
327 case TUNER_PHILIPS_SECAM: /* FI1216MF */
328 /* 0x01 -> ??? no change ??? */
329 /* 0x02 -> PAL BDGHI / SECAM L */
330 /* 0x04 -> ??? PAL others / SECAM others ??? */
331 *cb &= ~0x03;
332 if (params->std & V4L2_STD_SECAM_L)
333 /* also valid for V4L2_STD_SECAM */
334 *cb |= PHILIPS_MF_SET_STD_L;
335 else if (params->std & V4L2_STD_SECAM_LC)
336 *cb |= PHILIPS_MF_SET_STD_LC;
337 else /* V4L2_STD_B|V4L2_STD_GH */
338 *cb |= PHILIPS_MF_SET_STD_BG;
339 break;
340
341 case TUNER_TEMIC_4046FM5:
342 *cb &= ~0x0f;
343
344 if (params->std & V4L2_STD_PAL_BG) {
345 *cb |= TEMIC_SET_PAL_BG;
346
347 } else if (params->std & V4L2_STD_PAL_I) {
348 *cb |= TEMIC_SET_PAL_I;
349
350 } else if (params->std & V4L2_STD_PAL_DK) {
351 *cb |= TEMIC_SET_PAL_DK;
352
353 } else if (params->std & V4L2_STD_SECAM_L) {
354 *cb |= TEMIC_SET_PAL_L;
355
356 }
357 break;
358
359 case TUNER_PHILIPS_FQ1216ME:
360 *cb &= ~0x0f;
361
362 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
363 *cb |= PHILIPS_SET_PAL_BGDK;
364
365 } else if (params->std & V4L2_STD_PAL_I) {
366 *cb |= PHILIPS_SET_PAL_I;
367
368 } else if (params->std & V4L2_STD_SECAM_L) {
369 *cb |= PHILIPS_SET_PAL_L;
370
371 }
372 break;
373
374 case TUNER_PHILIPS_FCV1236D:
375 /* 0x00 -> ATSC antenna input 1 */
376 /* 0x01 -> ATSC antenna input 2 */
377 /* 0x02 -> NTSC antenna input 1 */
378 /* 0x03 -> NTSC antenna input 2 */
379 *cb &= ~0x03;
380 if (!(params->std & V4L2_STD_ATSC))
381 *cb |= 2;
382 break;
383
384 case TUNER_MICROTUNE_4042FI5:
385 /* Set the charge pump for fast tuning */
386 *config |= TUNER_CHARGE_PUMP;
387 break;
388
389 case TUNER_PHILIPS_TUV1236D:
390 {
391 struct tuner_i2c_props i2c = priv->i2c_props;
392 /* 0x40 -> ATSC antenna input 1 */
393 /* 0x48 -> ATSC antenna input 2 */
394 /* 0x00 -> NTSC antenna input 1 */
395 /* 0x08 -> NTSC antenna input 2 */
396 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
397 *cb &= ~0x40;
398 if (params->std & V4L2_STD_ATSC) {
399 *cb |= 0x40;
400 buffer[1] = 0x04;
401 }
402 /* set to the correct mode (analog or digital) */
403 i2c.addr = 0x0a;
404 rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2);
405 if (2 != rc)
406 tuner_warn("i2c i/o error: rc == %d "
407 "(should be 2)\n", rc);
408 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
409 if (2 != rc)
410 tuner_warn("i2c i/o error: rc == %d "
411 "(should be 2)\n", rc);
412 break;
413 }
414 }
415 if (atv_input[priv->nr])
416 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
417
418 return 0;
419 }
420
421 static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux)
422 {
423 struct tuner_simple_priv *priv = fe->tuner_priv;
424 int rc;
425 u8 buffer[2];
426
427 buffer[0] = (config & ~0x38) | 0x18;
428 buffer[1] = aux;
429
430 tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]);
431
432 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
433 if (2 != rc)
434 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc);
435
436 return rc == 2 ? 0 : rc;
437 }
438
439 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
440 u16 div, u8 config, u8 cb)
441 {
442 struct tuner_simple_priv *priv = fe->tuner_priv;
443 int rc;
444
445 switch (priv->type) {
446 case TUNER_LG_TDVS_H06XF:
447 simple_set_aux_byte(fe, config, 0x20);
448 break;
449 case TUNER_PHILIPS_FQ1216LME_MK3:
450 simple_set_aux_byte(fe, config, 0x60); /* External AGC */
451 break;
452 case TUNER_MICROTUNE_4042FI5:
453 {
454 /* FIXME - this may also work for other tuners */
455 unsigned long timeout = jiffies + msecs_to_jiffies(1);
456 u8 status_byte = 0;
457
458 /* Wait until the PLL locks */
459 for (;;) {
460 if (time_after(jiffies, timeout))
461 return 0;
462 rc = tuner_i2c_xfer_recv(&priv->i2c_props,
463 &status_byte, 1);
464 if (1 != rc) {
465 tuner_warn("i2c i/o read error: rc == %d "
466 "(should be 1)\n", rc);
467 break;
468 }
469 if (status_byte & TUNER_PLL_LOCKED)
470 break;
471 udelay(10);
472 }
473
474 /* Set the charge pump for optimized phase noise figure */
475 config &= ~TUNER_CHARGE_PUMP;
476 buffer[0] = (div>>8) & 0x7f;
477 buffer[1] = div & 0xff;
478 buffer[2] = config;
479 buffer[3] = cb;
480 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
481 buffer[0], buffer[1], buffer[2], buffer[3]);
482
483 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
484 if (4 != rc)
485 tuner_warn("i2c i/o error: rc == %d "
486 "(should be 4)\n", rc);
487 break;
488 }
489 }
490
491 return 0;
492 }
493
494 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
495 {
496 struct tuner_simple_priv *priv = fe->tuner_priv;
497
498 switch (priv->type) {
499 case TUNER_TENA_9533_DI:
500 case TUNER_YMEC_TVF_5533MF:
501 tuner_dbg("This tuner doesn't have FM. "
502 "Most cards have a TEA5767 for FM\n");
503 return 0;
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 tuner_err("This tuner doesn't have FM\n");
528 /* Set the low band for sanity, since it covers 88-108 MHz */
529 buffer[3] = 0x01;
530 break;
531 case TUNER_MICROTUNE_4049FM5:
532 default:
533 buffer[3] = 0xa4;
534 break;
535 }
536
537 return 0;
538 }
539
540 /* ---------------------------------------------------------------------- */
541
542 static int simple_set_tv_freq(struct dvb_frontend *fe,
543 struct analog_parameters *params)
544 {
545 struct tuner_simple_priv *priv = fe->tuner_priv;
546 u8 config, cb;
547 u16 div;
548 struct tunertype *tun;
549 u8 buffer[4];
550 int rc, IFPCoff, i;
551 enum param_type desired_type;
552 struct tuner_params *t_params;
553
554 tun = priv->tun;
555
556 /* IFPCoff = Video Intermediate Frequency - Vif:
557 940 =16*58.75 NTSC/J (Japan)
558 732 =16*45.75 M/N STD
559 704 =16*44 ATSC (at DVB code)
560 632 =16*39.50 I U.K.
561 622.4=16*38.90 B/G D/K I, L STD
562 592 =16*37.00 D China
563 590 =16.36.875 B Australia
564 543.2=16*33.95 L' STD
565 171.2=16*10.70 FM Radio (at set_radio_freq)
566 */
567
568 if (params->std == V4L2_STD_NTSC_M_JP) {
569 IFPCoff = 940;
570 desired_type = TUNER_PARAM_TYPE_NTSC;
571 } else if ((params->std & V4L2_STD_MN) &&
572 !(params->std & ~V4L2_STD_MN)) {
573 IFPCoff = 732;
574 desired_type = TUNER_PARAM_TYPE_NTSC;
575 } else if (params->std == V4L2_STD_SECAM_LC) {
576 IFPCoff = 543;
577 desired_type = TUNER_PARAM_TYPE_SECAM;
578 } else {
579 IFPCoff = 623;
580 desired_type = TUNER_PARAM_TYPE_PAL;
581 }
582
583 t_params = simple_tuner_params(fe, desired_type);
584
585 i = simple_config_lookup(fe, t_params, &params->frequency,
586 &config, &cb);
587
588 div = params->frequency + IFPCoff + offset;
589
590 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
591 "Offset=%d.%02d MHz, div=%0d\n",
592 params->frequency / 16, params->frequency % 16 * 100 / 16,
593 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
594 offset / 16, offset % 16 * 100 / 16, div);
595
596 /* tv norm specific stuff for multi-norm tuners */
597 simple_std_setup(fe, params, &config, &cb);
598
599 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
600 buffer[0] = config;
601 buffer[1] = cb;
602 buffer[2] = (div>>8) & 0x7f;
603 buffer[3] = div & 0xff;
604 } else {
605 buffer[0] = (div>>8) & 0x7f;
606 buffer[1] = div & 0xff;
607 buffer[2] = config;
608 buffer[3] = cb;
609 }
610 priv->last_div = div;
611 if (t_params->has_tda9887) {
612 struct v4l2_priv_tun_config tda9887_cfg;
613 int tda_config = 0;
614 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
615 V4L2_STD_SECAM_LC)) &&
616 !(params->std & ~(V4L2_STD_SECAM_L |
617 V4L2_STD_SECAM_LC));
618
619 tda9887_cfg.tuner = TUNER_TDA9887;
620 tda9887_cfg.priv = &tda_config;
621
622 if (params->std == V4L2_STD_SECAM_LC) {
623 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
624 tda_config |= TDA9887_PORT1_ACTIVE;
625 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
626 tda_config |= TDA9887_PORT2_ACTIVE;
627 } else {
628 if (t_params->port1_active)
629 tda_config |= TDA9887_PORT1_ACTIVE;
630 if (t_params->port2_active)
631 tda_config |= TDA9887_PORT2_ACTIVE;
632 }
633 if (t_params->intercarrier_mode)
634 tda_config |= TDA9887_INTERCARRIER;
635 if (is_secam_l) {
636 if (i == 0 && t_params->default_top_secam_low)
637 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
638 else if (i == 1 && t_params->default_top_secam_mid)
639 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
640 else if (t_params->default_top_secam_high)
641 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
642 } else {
643 if (i == 0 && t_params->default_top_low)
644 tda_config |= TDA9887_TOP(t_params->default_top_low);
645 else if (i == 1 && t_params->default_top_mid)
646 tda_config |= TDA9887_TOP(t_params->default_top_mid);
647 else if (t_params->default_top_high)
648 tda_config |= TDA9887_TOP(t_params->default_top_high);
649 }
650 if (t_params->default_pll_gating_18)
651 tda_config |= TDA9887_GATING_18;
652 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
653 &tda9887_cfg);
654 }
655 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
656 buffer[0], buffer[1], buffer[2], buffer[3]);
657
658 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
659 if (4 != rc)
660 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
661
662 simple_post_tune(fe, &buffer[0], div, config, cb);
663
664 return 0;
665 }
666
667 static int simple_set_radio_freq(struct dvb_frontend *fe,
668 struct analog_parameters *params)
669 {
670 struct tunertype *tun;
671 struct tuner_simple_priv *priv = fe->tuner_priv;
672 u8 buffer[4];
673 u16 div;
674 int rc, j;
675 struct tuner_params *t_params;
676 unsigned int freq = params->frequency;
677
678 tun = priv->tun;
679
680 for (j = tun->count-1; j > 0; j--)
681 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
682 break;
683 /* default t_params (j=0) will be used if desired type wasn't found */
684 t_params = &tun->params[j];
685
686 /* Select Radio 1st IF used */
687 switch (t_params->radio_if) {
688 case 0: /* 10.7 MHz */
689 freq += (unsigned int)(10.7*16000);
690 break;
691 case 1: /* 33.3 MHz */
692 freq += (unsigned int)(33.3*16000);
693 break;
694 case 2: /* 41.3 MHz */
695 freq += (unsigned int)(41.3*16000);
696 break;
697 default:
698 tuner_warn("Unsupported radio_if value %d\n",
699 t_params->radio_if);
700 return 0;
701 }
702
703 buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
704 TUNER_RATIO_SELECT_50; /* 50 kHz step */
705
706 /* Bandswitch byte */
707 simple_radio_bandswitch(fe, &buffer[0]);
708
709 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
710 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
711 freq * (1/800) */
712 div = (freq + 400) / 800;
713
714 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
715 buffer[0] = buffer[2];
716 buffer[1] = buffer[3];
717 buffer[2] = (div>>8) & 0x7f;
718 buffer[3] = div & 0xff;
719 } else {
720 buffer[0] = (div>>8) & 0x7f;
721 buffer[1] = div & 0xff;
722 }
723
724 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
725 buffer[0], buffer[1], buffer[2], buffer[3]);
726 priv->last_div = div;
727
728 if (t_params->has_tda9887) {
729 int config = 0;
730 struct v4l2_priv_tun_config tda9887_cfg;
731
732 tda9887_cfg.tuner = TUNER_TDA9887;
733 tda9887_cfg.priv = &config;
734
735 if (t_params->port1_active &&
736 !t_params->port1_fm_high_sensitivity)
737 config |= TDA9887_PORT1_ACTIVE;
738 if (t_params->port2_active &&
739 !t_params->port2_fm_high_sensitivity)
740 config |= TDA9887_PORT2_ACTIVE;
741 if (t_params->intercarrier_mode)
742 config |= TDA9887_INTERCARRIER;
743 /* if (t_params->port1_set_for_fm_mono)
744 config &= ~TDA9887_PORT1_ACTIVE;*/
745 if (t_params->fm_gain_normal)
746 config |= TDA9887_GAIN_NORMAL;
747 if (t_params->radio_if == 2)
748 config |= TDA9887_RIF_41_3;
749 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
750 &tda9887_cfg);
751 }
752 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
753 if (4 != rc)
754 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
755
756 return 0;
757 }
758
759 static int simple_set_params(struct dvb_frontend *fe,
760 struct analog_parameters *params)
761 {
762 struct tuner_simple_priv *priv = fe->tuner_priv;
763 int ret = -EINVAL;
764
765 if (priv->i2c_props.adap == NULL)
766 return -EINVAL;
767
768 switch (params->mode) {
769 case V4L2_TUNER_RADIO:
770 ret = simple_set_radio_freq(fe, params);
771 priv->frequency = params->frequency * 125 / 2;
772 break;
773 case V4L2_TUNER_ANALOG_TV:
774 case V4L2_TUNER_DIGITAL_TV:
775 ret = simple_set_tv_freq(fe, params);
776 priv->frequency = params->frequency * 62500;
777 break;
778 }
779 priv->bandwidth = 0;
780
781 return ret;
782 }
783
784 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
785 const struct dvb_frontend_parameters *params)
786 {
787 struct tuner_simple_priv *priv = fe->tuner_priv;
788
789 switch (priv->type) {
790 case TUNER_PHILIPS_FMD1216ME_MK3:
791 case TUNER_PHILIPS_FMD1216MEX_MK3:
792 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
793 params->frequency >= 158870000)
794 buf[3] |= 0x08;
795 break;
796 case TUNER_PHILIPS_TD1316:
797 /* determine band */
798 buf[3] |= (params->frequency < 161000000) ? 1 :
799 (params->frequency < 444000000) ? 2 : 4;
800
801 /* setup PLL filter */
802 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
803 buf[3] |= 1 << 3;
804 break;
805 case TUNER_PHILIPS_TUV1236D:
806 case TUNER_PHILIPS_FCV1236D:
807 {
808 unsigned int new_rf;
809
810 if (dtv_input[priv->nr])
811 new_rf = dtv_input[priv->nr];
812 else
813 switch (params->u.vsb.modulation) {
814 case QAM_64:
815 case QAM_256:
816 new_rf = 1;
817 break;
818 case VSB_8:
819 default:
820 new_rf = 0;
821 break;
822 }
823 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
824 break;
825 }
826 default:
827 break;
828 }
829 }
830
831 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
832 const struct dvb_frontend_parameters *params)
833 {
834 /* This function returns the tuned frequency on success, 0 on error */
835 struct tuner_simple_priv *priv = fe->tuner_priv;
836 struct tunertype *tun = priv->tun;
837 static struct tuner_params *t_params;
838 u8 config, cb;
839 u32 div;
840 int ret;
841 unsigned frequency = params->frequency / 62500;
842
843 if (!tun->stepsize) {
844 /* tuner-core was loaded before the digital tuner was
845 * configured and somehow picked the wrong tuner type */
846 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
847 "without stepsize defined.\n",
848 priv->type, priv->tun->name);
849 return 0; /* failure */
850 }
851
852 t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
853 ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
854 if (ret < 0)
855 return 0; /* failure */
856
857 div = ((frequency + t_params->iffreq) * 62500 + offset +
858 tun->stepsize/2) / tun->stepsize;
859
860 buf[0] = div >> 8;
861 buf[1] = div & 0xff;
862 buf[2] = config;
863 buf[3] = cb;
864
865 simple_set_dvb(fe, buf, params);
866
867 tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
868 tun->name, div, buf[0], buf[1], buf[2], buf[3]);
869
870 /* calculate the frequency we set it to */
871 return (div * tun->stepsize) - t_params->iffreq;
872 }
873
874 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
875 struct dvb_frontend_parameters *params,
876 u8 *buf, int buf_len)
877 {
878 struct tuner_simple_priv *priv = fe->tuner_priv;
879 u32 frequency;
880
881 if (buf_len < 5)
882 return -EINVAL;
883
884 frequency = simple_dvb_configure(fe, buf+1, params);
885 if (frequency == 0)
886 return -EINVAL;
887
888 buf[0] = priv->i2c_props.addr;
889
890 priv->frequency = frequency;
891 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
892 params->u.ofdm.bandwidth : 0;
893
894 return 5;
895 }
896
897 static int simple_dvb_set_params(struct dvb_frontend *fe,
898 struct dvb_frontend_parameters *params)
899 {
900 struct tuner_simple_priv *priv = fe->tuner_priv;
901 u32 prev_freq, prev_bw;
902 int ret;
903 u8 buf[5];
904
905 if (priv->i2c_props.adap == NULL)
906 return -EINVAL;
907
908 prev_freq = priv->frequency;
909 prev_bw = priv->bandwidth;
910
911 ret = simple_dvb_calc_regs(fe, params, buf, 5);
912 if (ret != 5)
913 goto fail;
914
915 /* put analog demod in standby when tuning digital */
916 if (fe->ops.analog_ops.standby)
917 fe->ops.analog_ops.standby(fe);
918
919 if (fe->ops.i2c_gate_ctrl)
920 fe->ops.i2c_gate_ctrl(fe, 1);
921
922 /* buf[0] contains the i2c address, but *
923 * we already have it in i2c_props.addr */
924 ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
925 if (ret != 4)
926 goto fail;
927
928 return 0;
929 fail:
930 /* calc_regs sets frequency and bandwidth. if we failed, unset them */
931 priv->frequency = prev_freq;
932 priv->bandwidth = prev_bw;
933
934 return ret;
935 }
936
937 static int simple_init(struct dvb_frontend *fe)
938 {
939 struct tuner_simple_priv *priv = fe->tuner_priv;
940
941 if (priv->i2c_props.adap == NULL)
942 return -EINVAL;
943
944 if (priv->tun->initdata) {
945 int ret;
946
947 if (fe->ops.i2c_gate_ctrl)
948 fe->ops.i2c_gate_ctrl(fe, 1);
949
950 ret = tuner_i2c_xfer_send(&priv->i2c_props,
951 priv->tun->initdata + 1,
952 priv->tun->initdata[0]);
953 if (ret != priv->tun->initdata[0])
954 return ret;
955 }
956
957 return 0;
958 }
959
960 static int simple_sleep(struct dvb_frontend *fe)
961 {
962 struct tuner_simple_priv *priv = fe->tuner_priv;
963
964 if (priv->i2c_props.adap == NULL)
965 return -EINVAL;
966
967 if (priv->tun->sleepdata) {
968 int ret;
969
970 if (fe->ops.i2c_gate_ctrl)
971 fe->ops.i2c_gate_ctrl(fe, 1);
972
973 ret = tuner_i2c_xfer_send(&priv->i2c_props,
974 priv->tun->sleepdata + 1,
975 priv->tun->sleepdata[0]);
976 if (ret != priv->tun->sleepdata[0])
977 return ret;
978 }
979
980 return 0;
981 }
982
983 static int simple_release(struct dvb_frontend *fe)
984 {
985 struct tuner_simple_priv *priv = fe->tuner_priv;
986
987 mutex_lock(&tuner_simple_list_mutex);
988
989 if (priv)
990 hybrid_tuner_release_state(priv);
991
992 mutex_unlock(&tuner_simple_list_mutex);
993
994 fe->tuner_priv = NULL;
995
996 return 0;
997 }
998
999 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1000 {
1001 struct tuner_simple_priv *priv = fe->tuner_priv;
1002 *frequency = priv->frequency;
1003 return 0;
1004 }
1005
1006 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1007 {
1008 struct tuner_simple_priv *priv = fe->tuner_priv;
1009 *bandwidth = priv->bandwidth;
1010 return 0;
1011 }
1012
1013 static struct dvb_tuner_ops simple_tuner_ops = {
1014 .init = simple_init,
1015 .sleep = simple_sleep,
1016 .set_analog_params = simple_set_params,
1017 .set_params = simple_dvb_set_params,
1018 .calc_regs = simple_dvb_calc_regs,
1019 .release = simple_release,
1020 .get_frequency = simple_get_frequency,
1021 .get_bandwidth = simple_get_bandwidth,
1022 .get_status = simple_get_status,
1023 .get_rf_strength = simple_get_rf_strength,
1024 };
1025
1026 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1027 struct i2c_adapter *i2c_adap,
1028 u8 i2c_addr,
1029 unsigned int type)
1030 {
1031 struct tuner_simple_priv *priv = NULL;
1032 int instance;
1033
1034 if (type >= tuner_count) {
1035 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1036 __func__, type, tuner_count-1);
1037 return NULL;
1038 }
1039
1040 /* If i2c_adap is set, check that the tuner is at the correct address.
1041 * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1042 * by the digital demod via calc_regs.
1043 */
1044 if (i2c_adap != NULL) {
1045 u8 b[1];
1046 struct i2c_msg msg = {
1047 .addr = i2c_addr, .flags = I2C_M_RD,
1048 .buf = b, .len = 1,
1049 };
1050
1051 if (fe->ops.i2c_gate_ctrl)
1052 fe->ops.i2c_gate_ctrl(fe, 1);
1053
1054 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1055 printk(KERN_WARNING "tuner-simple %d-%04x: "
1056 "unable to probe %s, proceeding anyway.",
1057 i2c_adapter_id(i2c_adap), i2c_addr,
1058 tuners[type].name);
1059
1060 if (fe->ops.i2c_gate_ctrl)
1061 fe->ops.i2c_gate_ctrl(fe, 0);
1062 }
1063
1064 mutex_lock(&tuner_simple_list_mutex);
1065
1066 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1067 hybrid_tuner_instance_list,
1068 i2c_adap, i2c_addr,
1069 "tuner-simple");
1070 switch (instance) {
1071 case 0:
1072 mutex_unlock(&tuner_simple_list_mutex);
1073 return NULL;
1074 case 1:
1075 fe->tuner_priv = priv;
1076
1077 priv->type = type;
1078 priv->tun = &tuners[type];
1079 priv->nr = simple_devcount++;
1080 break;
1081 default:
1082 fe->tuner_priv = priv;
1083 break;
1084 }
1085
1086 mutex_unlock(&tuner_simple_list_mutex);
1087
1088 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1089 sizeof(struct dvb_tuner_ops));
1090
1091 if (type != priv->type)
1092 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1093 type, priv->type, priv->tun->name);
1094 else
1095 tuner_info("type set to %d (%s)\n",
1096 priv->type, priv->tun->name);
1097
1098 if ((debug) || ((atv_input[priv->nr] > 0) ||
1099 (dtv_input[priv->nr] > 0))) {
1100 if (0 == atv_input[priv->nr])
1101 tuner_info("tuner %d atv rf input will be "
1102 "autoselected\n", priv->nr);
1103 else
1104 tuner_info("tuner %d atv rf input will be "
1105 "set to input %d (insmod option)\n",
1106 priv->nr, atv_input[priv->nr]);
1107 if (0 == dtv_input[priv->nr])
1108 tuner_info("tuner %d dtv rf input will be "
1109 "autoselected\n", priv->nr);
1110 else
1111 tuner_info("tuner %d dtv rf input will be "
1112 "set to input %d (insmod option)\n",
1113 priv->nr, dtv_input[priv->nr]);
1114 }
1115
1116 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1117 sizeof(fe->ops.tuner_ops.info.name));
1118
1119 return fe;
1120 }
1121 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1122
1123 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1124 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1125 MODULE_LICENSE("GPL");
1126
1127 /*
1128 * Overrides for Emacs so that we follow Linus's tabbing style.
1129 * ---------------------------------------------------------------------------
1130 * Local variables:
1131 * c-basic-offset: 8
1132 * End:
1133 */
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