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V4L/DVB (8757): v4l-dvb: fix a bunch of sparse warnings
[deliverable/linux.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 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
146 default:
147 return status & TUNER_STEREO;
148 }
149 }
150
151 static inline int tuner_islocked(const int status)
152 {
153 return (status & TUNER_FL);
154 }
155
156 static inline int tuner_afcstatus(const int status)
157 {
158 return (status & TUNER_AFC) - 2;
159 }
160
161
162 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
163 {
164 struct tuner_simple_priv *priv = fe->tuner_priv;
165 int tuner_status;
166
167 if (priv->i2c_props.adap == NULL)
168 return -EINVAL;
169
170 tuner_status = tuner_read_status(fe);
171
172 *status = 0;
173
174 if (tuner_islocked(tuner_status))
175 *status = TUNER_STATUS_LOCKED;
176 if (tuner_stereo(priv->type, tuner_status))
177 *status |= TUNER_STATUS_STEREO;
178
179 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
180
181 return 0;
182 }
183
184 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
185 {
186 struct tuner_simple_priv *priv = fe->tuner_priv;
187 int signal;
188
189 if (priv->i2c_props.adap == NULL)
190 return -EINVAL;
191
192 signal = tuner_signal(tuner_read_status(fe));
193
194 *strength = signal;
195
196 tuner_dbg("Signal strength: %d\n", signal);
197
198 return 0;
199 }
200
201 /* ---------------------------------------------------------------------- */
202
203 static inline char *tuner_param_name(enum param_type type)
204 {
205 char *name;
206
207 switch (type) {
208 case TUNER_PARAM_TYPE_RADIO:
209 name = "radio";
210 break;
211 case TUNER_PARAM_TYPE_PAL:
212 name = "pal";
213 break;
214 case TUNER_PARAM_TYPE_SECAM:
215 name = "secam";
216 break;
217 case TUNER_PARAM_TYPE_NTSC:
218 name = "ntsc";
219 break;
220 case TUNER_PARAM_TYPE_DIGITAL:
221 name = "digital";
222 break;
223 default:
224 name = "unknown";
225 break;
226 }
227 return name;
228 }
229
230 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
231 enum param_type desired_type)
232 {
233 struct tuner_simple_priv *priv = fe->tuner_priv;
234 struct tunertype *tun = priv->tun;
235 int i;
236
237 for (i = 0; i < tun->count; i++)
238 if (desired_type == tun->params[i].type)
239 break;
240
241 /* use default tuner params if desired_type not available */
242 if (i == tun->count) {
243 tuner_dbg("desired params (%s) undefined for tuner %d\n",
244 tuner_param_name(desired_type), priv->type);
245 i = 0;
246 }
247
248 tuner_dbg("using tuner params #%d (%s)\n", i,
249 tuner_param_name(tun->params[i].type));
250
251 return &tun->params[i];
252 }
253
254 static int simple_config_lookup(struct dvb_frontend *fe,
255 struct tuner_params *t_params,
256 unsigned *frequency, u8 *config, u8 *cb)
257 {
258 struct tuner_simple_priv *priv = fe->tuner_priv;
259 int i;
260
261 for (i = 0; i < t_params->count; i++) {
262 if (*frequency > t_params->ranges[i].limit)
263 continue;
264 break;
265 }
266 if (i == t_params->count) {
267 tuner_dbg("frequency out of range (%d > %d)\n",
268 *frequency, t_params->ranges[i - 1].limit);
269 *frequency = t_params->ranges[--i].limit;
270 }
271 *config = t_params->ranges[i].config;
272 *cb = t_params->ranges[i].cb;
273
274 tuner_dbg("freq = %d.%02d (%d), range = %d, "
275 "config = 0x%02x, cb = 0x%02x\n",
276 *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
277 i, *config, *cb);
278
279 return i;
280 }
281
282 /* ---------------------------------------------------------------------- */
283
284 static void simple_set_rf_input(struct dvb_frontend *fe,
285 u8 *config, u8 *cb, unsigned int rf)
286 {
287 struct tuner_simple_priv *priv = fe->tuner_priv;
288
289 switch (priv->type) {
290 case TUNER_PHILIPS_TUV1236D:
291 switch (rf) {
292 case 1:
293 *cb |= 0x08;
294 break;
295 default:
296 *cb &= ~0x08;
297 break;
298 }
299 break;
300 case TUNER_PHILIPS_FCV1236D:
301 switch (rf) {
302 case 1:
303 *cb |= 0x01;
304 break;
305 default:
306 *cb &= ~0x01;
307 break;
308 }
309 break;
310 default:
311 break;
312 }
313 }
314
315 static int simple_std_setup(struct dvb_frontend *fe,
316 struct analog_parameters *params,
317 u8 *config, u8 *cb)
318 {
319 struct tuner_simple_priv *priv = fe->tuner_priv;
320 u8 tuneraddr;
321 int rc;
322
323 /* tv norm specific stuff for multi-norm tuners */
324 switch (priv->type) {
325 case TUNER_PHILIPS_SECAM: /* FI1216MF */
326 /* 0x01 -> ??? no change ??? */
327 /* 0x02 -> PAL BDGHI / SECAM L */
328 /* 0x04 -> ??? PAL others / SECAM others ??? */
329 *cb &= ~0x03;
330 if (params->std & V4L2_STD_SECAM_L)
331 /* also valid for V4L2_STD_SECAM */
332 *cb |= PHILIPS_MF_SET_STD_L;
333 else if (params->std & V4L2_STD_SECAM_LC)
334 *cb |= PHILIPS_MF_SET_STD_LC;
335 else /* V4L2_STD_B|V4L2_STD_GH */
336 *cb |= PHILIPS_MF_SET_STD_BG;
337 break;
338
339 case TUNER_TEMIC_4046FM5:
340 *cb &= ~0x0f;
341
342 if (params->std & V4L2_STD_PAL_BG) {
343 *cb |= TEMIC_SET_PAL_BG;
344
345 } else if (params->std & V4L2_STD_PAL_I) {
346 *cb |= TEMIC_SET_PAL_I;
347
348 } else if (params->std & V4L2_STD_PAL_DK) {
349 *cb |= TEMIC_SET_PAL_DK;
350
351 } else if (params->std & V4L2_STD_SECAM_L) {
352 *cb |= TEMIC_SET_PAL_L;
353
354 }
355 break;
356
357 case TUNER_PHILIPS_FQ1216ME:
358 *cb &= ~0x0f;
359
360 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
361 *cb |= PHILIPS_SET_PAL_BGDK;
362
363 } else if (params->std & V4L2_STD_PAL_I) {
364 *cb |= PHILIPS_SET_PAL_I;
365
366 } else if (params->std & V4L2_STD_SECAM_L) {
367 *cb |= PHILIPS_SET_PAL_L;
368
369 }
370 break;
371
372 case TUNER_PHILIPS_FCV1236D:
373 /* 0x00 -> ATSC antenna input 1 */
374 /* 0x01 -> ATSC antenna input 2 */
375 /* 0x02 -> NTSC antenna input 1 */
376 /* 0x03 -> NTSC antenna input 2 */
377 *cb &= ~0x03;
378 if (!(params->std & V4L2_STD_ATSC))
379 *cb |= 2;
380 break;
381
382 case TUNER_MICROTUNE_4042FI5:
383 /* Set the charge pump for fast tuning */
384 *config |= TUNER_CHARGE_PUMP;
385 break;
386
387 case TUNER_PHILIPS_TUV1236D:
388 {
389 /* 0x40 -> ATSC antenna input 1 */
390 /* 0x48 -> ATSC antenna input 2 */
391 /* 0x00 -> NTSC antenna input 1 */
392 /* 0x08 -> NTSC antenna input 2 */
393 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
394 *cb &= ~0x40;
395 if (params->std & V4L2_STD_ATSC) {
396 *cb |= 0x40;
397 buffer[1] = 0x04;
398 }
399 /* set to the correct mode (analog or digital) */
400 tuneraddr = priv->i2c_props.addr;
401 priv->i2c_props.addr = 0x0a;
402 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[0], 2);
403 if (2 != rc)
404 tuner_warn("i2c i/o error: rc == %d "
405 "(should be 2)\n", rc);
406 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[2], 2);
407 if (2 != rc)
408 tuner_warn("i2c i/o error: rc == %d "
409 "(should be 2)\n", rc);
410 priv->i2c_props.addr = tuneraddr;
411 break;
412 }
413 }
414 if (atv_input[priv->nr])
415 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
416
417 return 0;
418 }
419
420 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
421 u16 div, u8 config, u8 cb)
422 {
423 struct tuner_simple_priv *priv = fe->tuner_priv;
424 int rc;
425
426 switch (priv->type) {
427 case TUNER_LG_TDVS_H06XF:
428 /* Set the Auxiliary Byte. */
429 buffer[0] = buffer[2];
430 buffer[0] &= ~0x20;
431 buffer[0] |= 0x18;
432 buffer[1] = 0x20;
433 tuner_dbg("tv 0x%02x 0x%02x\n", buffer[0], buffer[1]);
434
435 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
436 if (2 != rc)
437 tuner_warn("i2c i/o error: rc == %d "
438 "(should be 2)\n", rc);
439 break;
440 case TUNER_MICROTUNE_4042FI5:
441 {
442 /* FIXME - this may also work for other tuners */
443 unsigned long timeout = jiffies + msecs_to_jiffies(1);
444 u8 status_byte = 0;
445
446 /* Wait until the PLL locks */
447 for (;;) {
448 if (time_after(jiffies, timeout))
449 return 0;
450 rc = tuner_i2c_xfer_recv(&priv->i2c_props,
451 &status_byte, 1);
452 if (1 != rc) {
453 tuner_warn("i2c i/o read error: rc == %d "
454 "(should be 1)\n", rc);
455 break;
456 }
457 if (status_byte & TUNER_PLL_LOCKED)
458 break;
459 udelay(10);
460 }
461
462 /* Set the charge pump for optimized phase noise figure */
463 config &= ~TUNER_CHARGE_PUMP;
464 buffer[0] = (div>>8) & 0x7f;
465 buffer[1] = div & 0xff;
466 buffer[2] = config;
467 buffer[3] = cb;
468 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
469 buffer[0], buffer[1], buffer[2], buffer[3]);
470
471 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
472 if (4 != rc)
473 tuner_warn("i2c i/o error: rc == %d "
474 "(should be 4)\n", rc);
475 break;
476 }
477 }
478
479 return 0;
480 }
481
482 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
483 {
484 struct tuner_simple_priv *priv = fe->tuner_priv;
485
486 switch (priv->type) {
487 case TUNER_TENA_9533_DI:
488 case TUNER_YMEC_TVF_5533MF:
489 tuner_dbg("This tuner doesn't have FM. "
490 "Most cards have a TEA5767 for FM\n");
491 return 0;
492 case TUNER_PHILIPS_FM1216ME_MK3:
493 case TUNER_PHILIPS_FM1236_MK3:
494 case TUNER_PHILIPS_FMD1216ME_MK3:
495 case TUNER_LG_NTSC_TAPE:
496 case TUNER_PHILIPS_FM1256_IH3:
497 buffer[3] = 0x19;
498 break;
499 case TUNER_TNF_5335MF:
500 buffer[3] = 0x11;
501 break;
502 case TUNER_LG_PAL_FM:
503 buffer[3] = 0xa5;
504 break;
505 case TUNER_THOMSON_DTT761X:
506 buffer[3] = 0x39;
507 break;
508 case TUNER_MICROTUNE_4049FM5:
509 default:
510 buffer[3] = 0xa4;
511 break;
512 }
513
514 return 0;
515 }
516
517 /* ---------------------------------------------------------------------- */
518
519 static int simple_set_tv_freq(struct dvb_frontend *fe,
520 struct analog_parameters *params)
521 {
522 struct tuner_simple_priv *priv = fe->tuner_priv;
523 u8 config, cb;
524 u16 div;
525 struct tunertype *tun;
526 u8 buffer[4];
527 int rc, IFPCoff, i;
528 enum param_type desired_type;
529 struct tuner_params *t_params;
530
531 tun = priv->tun;
532
533 /* IFPCoff = Video Intermediate Frequency - Vif:
534 940 =16*58.75 NTSC/J (Japan)
535 732 =16*45.75 M/N STD
536 704 =16*44 ATSC (at DVB code)
537 632 =16*39.50 I U.K.
538 622.4=16*38.90 B/G D/K I, L STD
539 592 =16*37.00 D China
540 590 =16.36.875 B Australia
541 543.2=16*33.95 L' STD
542 171.2=16*10.70 FM Radio (at set_radio_freq)
543 */
544
545 if (params->std == V4L2_STD_NTSC_M_JP) {
546 IFPCoff = 940;
547 desired_type = TUNER_PARAM_TYPE_NTSC;
548 } else if ((params->std & V4L2_STD_MN) &&
549 !(params->std & ~V4L2_STD_MN)) {
550 IFPCoff = 732;
551 desired_type = TUNER_PARAM_TYPE_NTSC;
552 } else if (params->std == V4L2_STD_SECAM_LC) {
553 IFPCoff = 543;
554 desired_type = TUNER_PARAM_TYPE_SECAM;
555 } else {
556 IFPCoff = 623;
557 desired_type = TUNER_PARAM_TYPE_PAL;
558 }
559
560 t_params = simple_tuner_params(fe, desired_type);
561
562 i = simple_config_lookup(fe, t_params, &params->frequency,
563 &config, &cb);
564
565 div = params->frequency + IFPCoff + offset;
566
567 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
568 "Offset=%d.%02d MHz, div=%0d\n",
569 params->frequency / 16, params->frequency % 16 * 100 / 16,
570 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
571 offset / 16, offset % 16 * 100 / 16, div);
572
573 /* tv norm specific stuff for multi-norm tuners */
574 simple_std_setup(fe, params, &config, &cb);
575
576 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
577 buffer[0] = config;
578 buffer[1] = cb;
579 buffer[2] = (div>>8) & 0x7f;
580 buffer[3] = div & 0xff;
581 } else {
582 buffer[0] = (div>>8) & 0x7f;
583 buffer[1] = div & 0xff;
584 buffer[2] = config;
585 buffer[3] = cb;
586 }
587 priv->last_div = div;
588 if (t_params->has_tda9887) {
589 struct v4l2_priv_tun_config tda9887_cfg;
590 int tda_config = 0;
591 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
592 V4L2_STD_SECAM_LC)) &&
593 !(params->std & ~(V4L2_STD_SECAM_L |
594 V4L2_STD_SECAM_LC));
595
596 tda9887_cfg.tuner = TUNER_TDA9887;
597 tda9887_cfg.priv = &tda_config;
598
599 if (params->std == V4L2_STD_SECAM_LC) {
600 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
601 tda_config |= TDA9887_PORT1_ACTIVE;
602 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
603 tda_config |= TDA9887_PORT2_ACTIVE;
604 } else {
605 if (t_params->port1_active)
606 tda_config |= TDA9887_PORT1_ACTIVE;
607 if (t_params->port2_active)
608 tda_config |= TDA9887_PORT2_ACTIVE;
609 }
610 if (t_params->intercarrier_mode)
611 tda_config |= TDA9887_INTERCARRIER;
612 if (is_secam_l) {
613 if (i == 0 && t_params->default_top_secam_low)
614 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
615 else if (i == 1 && t_params->default_top_secam_mid)
616 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
617 else if (t_params->default_top_secam_high)
618 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
619 } else {
620 if (i == 0 && t_params->default_top_low)
621 tda_config |= TDA9887_TOP(t_params->default_top_low);
622 else if (i == 1 && t_params->default_top_mid)
623 tda_config |= TDA9887_TOP(t_params->default_top_mid);
624 else if (t_params->default_top_high)
625 tda_config |= TDA9887_TOP(t_params->default_top_high);
626 }
627 if (t_params->default_pll_gating_18)
628 tda_config |= TDA9887_GATING_18;
629 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
630 &tda9887_cfg);
631 }
632 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
633 buffer[0], buffer[1], buffer[2], buffer[3]);
634
635 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
636 if (4 != rc)
637 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
638
639 simple_post_tune(fe, &buffer[0], div, config, cb);
640
641 return 0;
642 }
643
644 static int simple_set_radio_freq(struct dvb_frontend *fe,
645 struct analog_parameters *params)
646 {
647 struct tunertype *tun;
648 struct tuner_simple_priv *priv = fe->tuner_priv;
649 u8 buffer[4];
650 u16 div;
651 int rc, j;
652 struct tuner_params *t_params;
653 unsigned int freq = params->frequency;
654
655 tun = priv->tun;
656
657 for (j = tun->count-1; j > 0; j--)
658 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
659 break;
660 /* default t_params (j=0) will be used if desired type wasn't found */
661 t_params = &tun->params[j];
662
663 /* Select Radio 1st IF used */
664 switch (t_params->radio_if) {
665 case 0: /* 10.7 MHz */
666 freq += (unsigned int)(10.7*16000);
667 break;
668 case 1: /* 33.3 MHz */
669 freq += (unsigned int)(33.3*16000);
670 break;
671 case 2: /* 41.3 MHz */
672 freq += (unsigned int)(41.3*16000);
673 break;
674 default:
675 tuner_warn("Unsupported radio_if value %d\n",
676 t_params->radio_if);
677 return 0;
678 }
679
680 /* Bandswitch byte */
681 simple_radio_bandswitch(fe, &buffer[0]);
682
683 buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
684 TUNER_RATIO_SELECT_50; /* 50 kHz step */
685
686 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
687 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
688 freq * (1/800) */
689 div = (freq + 400) / 800;
690
691 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
692 buffer[0] = buffer[2];
693 buffer[1] = buffer[3];
694 buffer[2] = (div>>8) & 0x7f;
695 buffer[3] = div & 0xff;
696 } else {
697 buffer[0] = (div>>8) & 0x7f;
698 buffer[1] = div & 0xff;
699 }
700
701 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
702 buffer[0], buffer[1], buffer[2], buffer[3]);
703 priv->last_div = div;
704
705 if (t_params->has_tda9887) {
706 int config = 0;
707 struct v4l2_priv_tun_config tda9887_cfg;
708
709 tda9887_cfg.tuner = TUNER_TDA9887;
710 tda9887_cfg.priv = &config;
711
712 if (t_params->port1_active &&
713 !t_params->port1_fm_high_sensitivity)
714 config |= TDA9887_PORT1_ACTIVE;
715 if (t_params->port2_active &&
716 !t_params->port2_fm_high_sensitivity)
717 config |= TDA9887_PORT2_ACTIVE;
718 if (t_params->intercarrier_mode)
719 config |= TDA9887_INTERCARRIER;
720 /* if (t_params->port1_set_for_fm_mono)
721 config &= ~TDA9887_PORT1_ACTIVE;*/
722 if (t_params->fm_gain_normal)
723 config |= TDA9887_GAIN_NORMAL;
724 if (t_params->radio_if == 2)
725 config |= TDA9887_RIF_41_3;
726 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
727 &tda9887_cfg);
728 }
729 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
730 if (4 != rc)
731 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
732
733 return 0;
734 }
735
736 static int simple_set_params(struct dvb_frontend *fe,
737 struct analog_parameters *params)
738 {
739 struct tuner_simple_priv *priv = fe->tuner_priv;
740 int ret = -EINVAL;
741
742 if (priv->i2c_props.adap == NULL)
743 return -EINVAL;
744
745 switch (params->mode) {
746 case V4L2_TUNER_RADIO:
747 ret = simple_set_radio_freq(fe, params);
748 priv->frequency = params->frequency * 125 / 2;
749 break;
750 case V4L2_TUNER_ANALOG_TV:
751 case V4L2_TUNER_DIGITAL_TV:
752 ret = simple_set_tv_freq(fe, params);
753 priv->frequency = params->frequency * 62500;
754 break;
755 }
756 priv->bandwidth = 0;
757
758 return ret;
759 }
760
761 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
762 const struct dvb_frontend_parameters *params)
763 {
764 struct tuner_simple_priv *priv = fe->tuner_priv;
765
766 switch (priv->type) {
767 case TUNER_PHILIPS_FMD1216ME_MK3:
768 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
769 params->frequency >= 158870000)
770 buf[3] |= 0x08;
771 break;
772 case TUNER_PHILIPS_TD1316:
773 /* determine band */
774 buf[3] |= (params->frequency < 161000000) ? 1 :
775 (params->frequency < 444000000) ? 2 : 4;
776
777 /* setup PLL filter */
778 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
779 buf[3] |= 1 << 3;
780 break;
781 case TUNER_PHILIPS_TUV1236D:
782 case TUNER_PHILIPS_FCV1236D:
783 {
784 unsigned int new_rf;
785
786 if (dtv_input[priv->nr])
787 new_rf = dtv_input[priv->nr];
788 else
789 switch (params->u.vsb.modulation) {
790 case QAM_64:
791 case QAM_256:
792 new_rf = 1;
793 break;
794 case VSB_8:
795 default:
796 new_rf = 0;
797 break;
798 }
799 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
800 break;
801 }
802 default:
803 break;
804 }
805 }
806
807 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
808 const struct dvb_frontend_parameters *params)
809 {
810 /* This function returns the tuned frequency on success, 0 on error */
811 struct tuner_simple_priv *priv = fe->tuner_priv;
812 struct tunertype *tun = priv->tun;
813 static struct tuner_params *t_params;
814 u8 config, cb;
815 u32 div;
816 int ret;
817 unsigned frequency = params->frequency / 62500;
818
819 t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
820 ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
821 if (ret < 0)
822 return 0; /* failure */
823
824 div = ((frequency + t_params->iffreq) * 62500 + offset +
825 tun->stepsize/2) / tun->stepsize;
826
827 buf[0] = div >> 8;
828 buf[1] = div & 0xff;
829 buf[2] = config;
830 buf[3] = cb;
831
832 simple_set_dvb(fe, buf, params);
833
834 tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
835 tun->name, div, buf[0], buf[1], buf[2], buf[3]);
836
837 /* calculate the frequency we set it to */
838 return (div * tun->stepsize) - t_params->iffreq;
839 }
840
841 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
842 struct dvb_frontend_parameters *params,
843 u8 *buf, int buf_len)
844 {
845 struct tuner_simple_priv *priv = fe->tuner_priv;
846 u32 frequency;
847
848 if (buf_len < 5)
849 return -EINVAL;
850
851 frequency = simple_dvb_configure(fe, buf+1, params);
852 if (frequency == 0)
853 return -EINVAL;
854
855 buf[0] = priv->i2c_props.addr;
856
857 priv->frequency = frequency;
858 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
859 params->u.ofdm.bandwidth : 0;
860
861 return 5;
862 }
863
864 static int simple_dvb_set_params(struct dvb_frontend *fe,
865 struct dvb_frontend_parameters *params)
866 {
867 struct tuner_simple_priv *priv = fe->tuner_priv;
868 u32 prev_freq, prev_bw;
869 int ret;
870 u8 buf[5];
871
872 if (priv->i2c_props.adap == NULL)
873 return -EINVAL;
874
875 prev_freq = priv->frequency;
876 prev_bw = priv->bandwidth;
877
878 ret = simple_dvb_calc_regs(fe, params, buf, 5);
879 if (ret != 5)
880 goto fail;
881
882 /* put analog demod in standby when tuning digital */
883 if (fe->ops.analog_ops.standby)
884 fe->ops.analog_ops.standby(fe);
885
886 if (fe->ops.i2c_gate_ctrl)
887 fe->ops.i2c_gate_ctrl(fe, 1);
888
889 /* buf[0] contains the i2c address, but *
890 * we already have it in i2c_props.addr */
891 ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
892 if (ret != 4)
893 goto fail;
894
895 return 0;
896 fail:
897 /* calc_regs sets frequency and bandwidth. if we failed, unset them */
898 priv->frequency = prev_freq;
899 priv->bandwidth = prev_bw;
900
901 return ret;
902 }
903
904 static int simple_init(struct dvb_frontend *fe)
905 {
906 struct tuner_simple_priv *priv = fe->tuner_priv;
907
908 if (priv->i2c_props.adap == NULL)
909 return -EINVAL;
910
911 if (priv->tun->initdata) {
912 int ret;
913
914 if (fe->ops.i2c_gate_ctrl)
915 fe->ops.i2c_gate_ctrl(fe, 1);
916
917 ret = tuner_i2c_xfer_send(&priv->i2c_props,
918 priv->tun->initdata + 1,
919 priv->tun->initdata[0]);
920 if (ret != priv->tun->initdata[0])
921 return ret;
922 }
923
924 return 0;
925 }
926
927 static int simple_sleep(struct dvb_frontend *fe)
928 {
929 struct tuner_simple_priv *priv = fe->tuner_priv;
930
931 if (priv->i2c_props.adap == NULL)
932 return -EINVAL;
933
934 if (priv->tun->sleepdata) {
935 int ret;
936
937 if (fe->ops.i2c_gate_ctrl)
938 fe->ops.i2c_gate_ctrl(fe, 1);
939
940 ret = tuner_i2c_xfer_send(&priv->i2c_props,
941 priv->tun->sleepdata + 1,
942 priv->tun->sleepdata[0]);
943 if (ret != priv->tun->sleepdata[0])
944 return ret;
945 }
946
947 return 0;
948 }
949
950 static int simple_release(struct dvb_frontend *fe)
951 {
952 struct tuner_simple_priv *priv = fe->tuner_priv;
953
954 mutex_lock(&tuner_simple_list_mutex);
955
956 if (priv)
957 hybrid_tuner_release_state(priv);
958
959 mutex_unlock(&tuner_simple_list_mutex);
960
961 fe->tuner_priv = NULL;
962
963 return 0;
964 }
965
966 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
967 {
968 struct tuner_simple_priv *priv = fe->tuner_priv;
969 *frequency = priv->frequency;
970 return 0;
971 }
972
973 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
974 {
975 struct tuner_simple_priv *priv = fe->tuner_priv;
976 *bandwidth = priv->bandwidth;
977 return 0;
978 }
979
980 static struct dvb_tuner_ops simple_tuner_ops = {
981 .init = simple_init,
982 .sleep = simple_sleep,
983 .set_analog_params = simple_set_params,
984 .set_params = simple_dvb_set_params,
985 .calc_regs = simple_dvb_calc_regs,
986 .release = simple_release,
987 .get_frequency = simple_get_frequency,
988 .get_bandwidth = simple_get_bandwidth,
989 .get_status = simple_get_status,
990 .get_rf_strength = simple_get_rf_strength,
991 };
992
993 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
994 struct i2c_adapter *i2c_adap,
995 u8 i2c_addr,
996 unsigned int type)
997 {
998 struct tuner_simple_priv *priv = NULL;
999 int instance;
1000
1001 if (type >= tuner_count) {
1002 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1003 __func__, type, tuner_count-1);
1004 return NULL;
1005 }
1006
1007 /* If i2c_adap is set, check that the tuner is at the correct address.
1008 * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1009 * by the digital demod via calc_regs.
1010 */
1011 if (i2c_adap != NULL) {
1012 u8 b[1];
1013 struct i2c_msg msg = {
1014 .addr = i2c_addr, .flags = I2C_M_RD,
1015 .buf = b, .len = 1,
1016 };
1017
1018 if (fe->ops.i2c_gate_ctrl)
1019 fe->ops.i2c_gate_ctrl(fe, 1);
1020
1021 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1022 printk(KERN_WARNING "tuner-simple %d-%04x: "
1023 "unable to probe %s, proceeding anyway.",
1024 i2c_adapter_id(i2c_adap), i2c_addr,
1025 tuners[type].name);
1026
1027 if (fe->ops.i2c_gate_ctrl)
1028 fe->ops.i2c_gate_ctrl(fe, 0);
1029 }
1030
1031 mutex_lock(&tuner_simple_list_mutex);
1032
1033 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1034 hybrid_tuner_instance_list,
1035 i2c_adap, i2c_addr,
1036 "tuner-simple");
1037 switch (instance) {
1038 case 0:
1039 mutex_unlock(&tuner_simple_list_mutex);
1040 return NULL;
1041 break;
1042 case 1:
1043 fe->tuner_priv = priv;
1044
1045 priv->type = type;
1046 priv->tun = &tuners[type];
1047 priv->nr = simple_devcount++;
1048 break;
1049 default:
1050 fe->tuner_priv = priv;
1051 break;
1052 }
1053
1054 mutex_unlock(&tuner_simple_list_mutex);
1055
1056 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1057 sizeof(struct dvb_tuner_ops));
1058
1059 tuner_info("type set to %d (%s)\n", type, priv->tun->name);
1060
1061 if ((debug) || ((atv_input[priv->nr] > 0) ||
1062 (dtv_input[priv->nr] > 0))) {
1063 if (0 == atv_input[priv->nr])
1064 tuner_info("tuner %d atv rf input will be "
1065 "autoselected\n", priv->nr);
1066 else
1067 tuner_info("tuner %d atv rf input will be "
1068 "set to input %d (insmod option)\n",
1069 priv->nr, atv_input[priv->nr]);
1070 if (0 == dtv_input[priv->nr])
1071 tuner_info("tuner %d dtv rf input will be "
1072 "autoselected\n", priv->nr);
1073 else
1074 tuner_info("tuner %d dtv rf input will be "
1075 "set to input %d (insmod option)\n",
1076 priv->nr, dtv_input[priv->nr]);
1077 }
1078
1079 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1080 sizeof(fe->ops.tuner_ops.info.name));
1081
1082 return fe;
1083 }
1084 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1085
1086 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1087 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1088 MODULE_LICENSE("GPL");
1089
1090 /*
1091 * Overrides for Emacs so that we follow Linus's tabbing style.
1092 * ---------------------------------------------------------------------------
1093 * Local variables:
1094 * c-basic-offset: 8
1095 * End:
1096 */
Linux kernel - Deliverables
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