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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
16static int debug;
17module_param(debug, int, 0644);
18MODULE_PARM_DESC(debug, "enable verbose debug messages");
19
20#define TUNER_SIMPLE_MAX 64
21static unsigned int simple_devcount;
22
23static int offset;
24module_param(offset, int, 0664);
25MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
26
27static unsigned int atv_input[TUNER_SIMPLE_MAX] = \
28 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
29static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \
30 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
31module_param_array(atv_input, int, NULL, 0644);
32module_param_array(dtv_input, int, NULL, 0644);
33MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect");
34MODULE_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
103static DEFINE_MUTEX(tuner_simple_list_mutex);
104static LIST_HEAD(hybrid_tuner_instance_list);
105
106struct 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
122static 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
133static inline int tuner_signal(const int status)
134{
135 return (status & TUNER_SIGNAL) << 13;
136}
137
138static 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
154static inline int tuner_islocked(const int status)
155{
156 return (status & TUNER_FL);
157}
158
159static inline int tuner_afcstatus(const int status)
160{
161 return (status & TUNER_AFC) - 2;
162}
163
164
165static 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
187static 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
206static 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
233static 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
257static 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
287static 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
318static 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
421static 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
439static 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
494static 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 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
543static 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, ¶ms->frequency,
584 &config, &cb);
585
586 div = params->frequency + IFPCoff + offset;
587
588 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
589 "Offset=%d.%02d MHz, div=%0d\n",
590 params->frequency / 16, params->frequency % 16 * 100 / 16,
591 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
592 offset / 16, offset % 16 * 100 / 16, div);
593
594 /* tv norm specific stuff for multi-norm tuners */
595 simple_std_setup(fe, params, &config, &cb);
596
597 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
598 buffer[0] = config;
599 buffer[1] = cb;
600 buffer[2] = (div>>8) & 0x7f;
601 buffer[3] = div & 0xff;
602 } else {
603 buffer[0] = (div>>8) & 0x7f;
604 buffer[1] = div & 0xff;
605 buffer[2] = config;
606 buffer[3] = cb;
607 }
608 priv->last_div = div;
609 if (t_params->has_tda9887) {
610 struct v4l2_priv_tun_config tda9887_cfg;
611 int tda_config = 0;
612 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
613 V4L2_STD_SECAM_LC)) &&
614 !(params->std & ~(V4L2_STD_SECAM_L |
615 V4L2_STD_SECAM_LC));
616
617 tda9887_cfg.tuner = TUNER_TDA9887;
618 tda9887_cfg.priv = &tda_config;
619
620 if (params->std == V4L2_STD_SECAM_LC) {
621 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
622 tda_config |= TDA9887_PORT1_ACTIVE;
623 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
624 tda_config |= TDA9887_PORT2_ACTIVE;
625 } else {
626 if (t_params->port1_active)
627 tda_config |= TDA9887_PORT1_ACTIVE;
628 if (t_params->port2_active)
629 tda_config |= TDA9887_PORT2_ACTIVE;
630 }
631 if (t_params->intercarrier_mode)
632 tda_config |= TDA9887_INTERCARRIER;
633 if (is_secam_l) {
634 if (i == 0 && t_params->default_top_secam_low)
635 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
636 else if (i == 1 && t_params->default_top_secam_mid)
637 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
638 else if (t_params->default_top_secam_high)
639 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
640 } else {
641 if (i == 0 && t_params->default_top_low)
642 tda_config |= TDA9887_TOP(t_params->default_top_low);
643 else if (i == 1 && t_params->default_top_mid)
644 tda_config |= TDA9887_TOP(t_params->default_top_mid);
645 else if (t_params->default_top_high)
646 tda_config |= TDA9887_TOP(t_params->default_top_high);
647 }
648 if (t_params->default_pll_gating_18)
649 tda_config |= TDA9887_GATING_18;
650 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
651 &tda9887_cfg);
652 }
653 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
654 buffer[0], buffer[1], buffer[2], buffer[3]);
655
656 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
657 if (4 != rc)
658 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
659
660 simple_post_tune(fe, &buffer[0], div, config, cb);
661
662 return 0;
663}
664
665static int simple_set_radio_freq(struct dvb_frontend *fe,
666 struct analog_parameters *params)
667{
668 struct tunertype *tun;
669 struct tuner_simple_priv *priv = fe->tuner_priv;
670 u8 buffer[4];
671 u16 div;
672 int rc, j;
673 struct tuner_params *t_params;
674 unsigned int freq = params->frequency;
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 simple_radio_bandswitch(fe, &buffer[0]);
706
707 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
708 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
709 freq * (1/800) */
710 div = (freq + 400) / 800;
711
712 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
713 buffer[0] = buffer[2];
714 buffer[1] = buffer[3];
715 buffer[2] = (div>>8) & 0x7f;
716 buffer[3] = div & 0xff;
717 } else {
718 buffer[0] = (div>>8) & 0x7f;
719 buffer[1] = div & 0xff;
720 }
721
722 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
723 buffer[0], buffer[1], buffer[2], buffer[3]);
724 priv->last_div = div;
725
726 if (t_params->has_tda9887) {
727 int config = 0;
728 struct v4l2_priv_tun_config tda9887_cfg;
729
730 tda9887_cfg.tuner = TUNER_TDA9887;
731 tda9887_cfg.priv = &config;
732
733 if (t_params->port1_active &&
734 !t_params->port1_fm_high_sensitivity)
735 config |= TDA9887_PORT1_ACTIVE;
736 if (t_params->port2_active &&
737 !t_params->port2_fm_high_sensitivity)
738 config |= TDA9887_PORT2_ACTIVE;
739 if (t_params->intercarrier_mode)
740 config |= TDA9887_INTERCARRIER;
741/* if (t_params->port1_set_for_fm_mono)
742 config &= ~TDA9887_PORT1_ACTIVE;*/
743 if (t_params->fm_gain_normal)
744 config |= TDA9887_GAIN_NORMAL;
745 if (t_params->radio_if == 2)
746 config |= TDA9887_RIF_41_3;
747 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
748 &tda9887_cfg);
749 }
750 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
751 if (4 != rc)
752 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
753
754 /* Write AUX byte */
755 switch (priv->type) {
756 case TUNER_PHILIPS_FM1216ME_MK3:
757 buffer[2] = 0x98;
758 buffer[3] = 0x20; /* set TOP AGC */
759 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
760 if (4 != rc)
761 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
762 break;
763 }
764
765 return 0;
766}
767
768static int simple_set_params(struct dvb_frontend *fe,
769 struct analog_parameters *params)
770{
771 struct tuner_simple_priv *priv = fe->tuner_priv;
772 int ret = -EINVAL;
773
774 if (priv->i2c_props.adap == NULL)
775 return -EINVAL;
776
777 switch (params->mode) {
778 case V4L2_TUNER_RADIO:
779 ret = simple_set_radio_freq(fe, params);
780 priv->frequency = params->frequency * 125 / 2;
781 break;
782 case V4L2_TUNER_ANALOG_TV:
783 case V4L2_TUNER_DIGITAL_TV:
784 ret = simple_set_tv_freq(fe, params);
785 priv->frequency = params->frequency * 62500;
786 break;
787 }
788 priv->bandwidth = 0;
789
790 return ret;
791}
792
793static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
794 const u32 delsys,
795 const u32 frequency,
796 const u32 bandwidth)
797{
798 struct tuner_simple_priv *priv = fe->tuner_priv;
799
800 switch (priv->type) {
801 case TUNER_PHILIPS_FMD1216ME_MK3:
802 case TUNER_PHILIPS_FMD1216MEX_MK3:
803 if (bandwidth == 8000000 &&
804 frequency >= 158870000)
805 buf[3] |= 0x08;
806 break;
807 case TUNER_PHILIPS_TD1316:
808 /* determine band */
809 buf[3] |= (frequency < 161000000) ? 1 :
810 (frequency < 444000000) ? 2 : 4;
811
812 /* setup PLL filter */
813 if (bandwidth == 8000000)
814 buf[3] |= 1 << 3;
815 break;
816 case TUNER_PHILIPS_TUV1236D:
817 case TUNER_PHILIPS_FCV1236D:
818 {
819 unsigned int new_rf;
820
821 if (dtv_input[priv->nr])
822 new_rf = dtv_input[priv->nr];
823 else
824 switch (delsys) {
825 case SYS_DVBC_ANNEX_B:
826 new_rf = 1;
827 break;
828 case SYS_ATSC:
829 default:
830 new_rf = 0;
831 break;
832 }
833 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
834 break;
835 }
836 default:
837 break;
838 }
839}
840
841static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
842 const u32 delsys,
843 const u32 freq,
844 const u32 bw)
845{
846 /* This function returns the tuned frequency on success, 0 on error */
847 struct tuner_simple_priv *priv = fe->tuner_priv;
848 struct tunertype *tun = priv->tun;
849 static struct tuner_params *t_params;
850 u8 config, cb;
851 u32 div;
852 int ret;
853 u32 frequency = freq / 62500;
854
855 if (!tun->stepsize) {
856 /* tuner-core was loaded before the digital tuner was
857 * configured and somehow picked the wrong tuner type */
858 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
859 "without stepsize defined.\n",
860 priv->type, priv->tun->name);
861 return 0; /* failure */
862 }
863
864 t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
865 ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
866 if (ret < 0)
867 return 0; /* failure */
868
869 div = ((frequency + t_params->iffreq) * 62500 + offset +
870 tun->stepsize/2) / tun->stepsize;
871
872 buf[0] = div >> 8;
873 buf[1] = div & 0xff;
874 buf[2] = config;
875 buf[3] = cb;
876
877 simple_set_dvb(fe, buf, delsys, freq, bw);
878
879 tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
880 tun->name, div, buf[0], buf[1], buf[2], buf[3]);
881
882 /* calculate the frequency we set it to */
883 return (div * tun->stepsize) - t_params->iffreq;
884}
885
886static int simple_dvb_calc_regs(struct dvb_frontend *fe,
887 u8 *buf, int buf_len)
888{
889 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
890 u32 delsys = c->delivery_system;
891 u32 bw = c->bandwidth_hz;
892 struct tuner_simple_priv *priv = fe->tuner_priv;
893 u32 frequency;
894
895 if (buf_len < 5)
896 return -EINVAL;
897
898 frequency = simple_dvb_configure(fe, buf+1, delsys, c->frequency, bw);
899 if (frequency == 0)
900 return -EINVAL;
901
902 buf[0] = priv->i2c_props.addr;
903
904 priv->frequency = frequency;
905 priv->bandwidth = c->bandwidth_hz;
906
907 return 5;
908}
909
910static int simple_dvb_set_params(struct dvb_frontend *fe)
911{
912 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
913 u32 delsys = c->delivery_system;
914 u32 bw = c->bandwidth_hz;
915 u32 freq = c->frequency;
916 struct tuner_simple_priv *priv = fe->tuner_priv;
917 u32 frequency;
918 u32 prev_freq, prev_bw;
919 int ret;
920 u8 buf[5];
921
922 if (priv->i2c_props.adap == NULL)
923 return -EINVAL;
924
925 prev_freq = priv->frequency;
926 prev_bw = priv->bandwidth;
927
928 frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw);
929 if (frequency == 0)
930 return -EINVAL;
931
932 buf[0] = priv->i2c_props.addr;
933
934 priv->frequency = frequency;
935 priv->bandwidth = bw;
936
937 /* put analog demod in standby when tuning digital */
938 if (fe->ops.analog_ops.standby)
939 fe->ops.analog_ops.standby(fe);
940
941 if (fe->ops.i2c_gate_ctrl)
942 fe->ops.i2c_gate_ctrl(fe, 1);
943
944 /* buf[0] contains the i2c address, but *
945 * we already have it in i2c_props.addr */
946 ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
947 if (ret != 4)
948 goto fail;
949
950 return 0;
951fail:
952 /* calc_regs sets frequency and bandwidth. if we failed, unset them */
953 priv->frequency = prev_freq;
954 priv->bandwidth = prev_bw;
955
956 return ret;
957}
958
959static int simple_init(struct dvb_frontend *fe)
960{
961 struct tuner_simple_priv *priv = fe->tuner_priv;
962
963 if (priv->i2c_props.adap == NULL)
964 return -EINVAL;
965
966 if (priv->tun->initdata) {
967 int ret;
968
969 if (fe->ops.i2c_gate_ctrl)
970 fe->ops.i2c_gate_ctrl(fe, 1);
971
972 ret = tuner_i2c_xfer_send(&priv->i2c_props,
973 priv->tun->initdata + 1,
974 priv->tun->initdata[0]);
975 if (ret != priv->tun->initdata[0])
976 return ret;
977 }
978
979 return 0;
980}
981
982static int simple_sleep(struct dvb_frontend *fe)
983{
984 struct tuner_simple_priv *priv = fe->tuner_priv;
985
986 if (priv->i2c_props.adap == NULL)
987 return -EINVAL;
988
989 if (priv->tun->sleepdata) {
990 int ret;
991
992 if (fe->ops.i2c_gate_ctrl)
993 fe->ops.i2c_gate_ctrl(fe, 1);
994
995 ret = tuner_i2c_xfer_send(&priv->i2c_props,
996 priv->tun->sleepdata + 1,
997 priv->tun->sleepdata[0]);
998 if (ret != priv->tun->sleepdata[0])
999 return ret;
1000 }
1001
1002 return 0;
1003}
1004
1005static int simple_release(struct dvb_frontend *fe)
1006{
1007 struct tuner_simple_priv *priv = fe->tuner_priv;
1008
1009 mutex_lock(&tuner_simple_list_mutex);
1010
1011 if (priv)
1012 hybrid_tuner_release_state(priv);
1013
1014 mutex_unlock(&tuner_simple_list_mutex);
1015
1016 fe->tuner_priv = NULL;
1017
1018 return 0;
1019}
1020
1021static 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
1028static 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
1035static 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
1048struct 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(i2c_adap, &msg, 1))
1077 printk(KERN_WARNING "tuner-simple %d-%04x: "
1078 "unable to probe %s, proceeding anyway.",
1079 i2c_adapter_id(i2c_adap), i2c_addr,
1080 tuners[type].name);
1081
1082 if (fe->ops.i2c_gate_ctrl)
1083 fe->ops.i2c_gate_ctrl(fe, 0);
1084 }
1085
1086 mutex_lock(&tuner_simple_list_mutex);
1087
1088 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1089 hybrid_tuner_instance_list,
1090 i2c_adap, i2c_addr,
1091 "tuner-simple");
1092 switch (instance) {
1093 case 0:
1094 mutex_unlock(&tuner_simple_list_mutex);
1095 return NULL;
1096 case 1:
1097 fe->tuner_priv = priv;
1098
1099 priv->type = type;
1100 priv->tun = &tuners[type];
1101 priv->nr = simple_devcount++;
1102 break;
1103 default:
1104 fe->tuner_priv = priv;
1105 break;
1106 }
1107
1108 mutex_unlock(&tuner_simple_list_mutex);
1109
1110 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1111 sizeof(struct dvb_tuner_ops));
1112
1113 if (type != priv->type)
1114 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1115 type, priv->type, priv->tun->name);
1116 else
1117 tuner_info("type set to %d (%s)\n",
1118 priv->type, priv->tun->name);
1119
1120 if ((debug) || ((atv_input[priv->nr] > 0) ||
1121 (dtv_input[priv->nr] > 0))) {
1122 if (0 == atv_input[priv->nr])
1123 tuner_info("tuner %d atv rf input will be "
1124 "autoselected\n", priv->nr);
1125 else
1126 tuner_info("tuner %d atv rf input will be "
1127 "set to input %d (insmod option)\n",
1128 priv->nr, atv_input[priv->nr]);
1129 if (0 == dtv_input[priv->nr])
1130 tuner_info("tuner %d dtv rf input will be "
1131 "autoselected\n", priv->nr);
1132 else
1133 tuner_info("tuner %d dtv rf input will be "
1134 "set to input %d (insmod option)\n",
1135 priv->nr, dtv_input[priv->nr]);
1136 }
1137
1138 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1139 sizeof(fe->ops.tuner_ops.info.name));
1140
1141 return fe;
1142}
1143EXPORT_SYMBOL_GPL(simple_tuner_attach);
1144
1145MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1146MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1147MODULE_LICENSE("GPL");
1148
1149/*
1150 * Overrides for Emacs so that we follow Linus's tabbing style.
1151 * ---------------------------------------------------------------------------
1152 * Local variables:
1153 * c-basic-offset: 8
1154 * End:
1155 */