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Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev
[linux/fpc-iii.git] / drivers / media / common / tuners / tuner-simple.c
blob149d54cdf7b97a4ff92107e3afffbb1c773a1ddc
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 default:
148 return status & TUNER_STEREO;
149 }
150 }
151
152 static inline int tuner_islocked(const int status)
153 {
154 return (status & TUNER_FL);
155 }
156
157 static inline int tuner_afcstatus(const int status)
158 {
159 return (status & TUNER_AFC) - 2;
160 }
161
162
163 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
164 {
165 struct tuner_simple_priv *priv = fe->tuner_priv;
166 int tuner_status;
167
168 if (priv->i2c_props.adap == NULL)
169 return -EINVAL;
170
171 tuner_status = tuner_read_status(fe);
172
173 *status = 0;
174
175 if (tuner_islocked(tuner_status))
176 *status = TUNER_STATUS_LOCKED;
177 if (tuner_stereo(priv->type, tuner_status))
178 *status |= TUNER_STATUS_STEREO;
179
180 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
181
182 return 0;
183 }
184
185 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
186 {
187 struct tuner_simple_priv *priv = fe->tuner_priv;
188 int signal;
189
190 if (priv->i2c_props.adap == NULL)
191 return -EINVAL;
192
193 signal = tuner_signal(tuner_read_status(fe));
194
195 *strength = signal;
196
197 tuner_dbg("Signal strength: %d\n", signal);
198
199 return 0;
200 }
201
202 /* ---------------------------------------------------------------------- */
203
204 static inline char *tuner_param_name(enum param_type type)
205 {
206 char *name;
207
208 switch (type) {
209 case TUNER_PARAM_TYPE_RADIO:
210 name = "radio";
211 break;
212 case TUNER_PARAM_TYPE_PAL:
213 name = "pal";
214 break;
215 case TUNER_PARAM_TYPE_SECAM:
216 name = "secam";
217 break;
218 case TUNER_PARAM_TYPE_NTSC:
219 name = "ntsc";
220 break;
221 case TUNER_PARAM_TYPE_DIGITAL:
222 name = "digital";
223 break;
224 default:
225 name = "unknown";
226 break;
227 }
228 return name;
229 }
230
231 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
232 enum param_type desired_type)
233 {
234 struct tuner_simple_priv *priv = fe->tuner_priv;
235 struct tunertype *tun = priv->tun;
236 int i;
237
238 for (i = 0; i < tun->count; i++)
239 if (desired_type == tun->params[i].type)
240 break;
241
242 /* use default tuner params if desired_type not available */
243 if (i == tun->count) {
244 tuner_dbg("desired params (%s) undefined for tuner %d\n",
245 tuner_param_name(desired_type), priv->type);
246 i = 0;
247 }
248
249 tuner_dbg("using tuner params #%d (%s)\n", i,
250 tuner_param_name(tun->params[i].type));
251
252 return &tun->params[i];
253 }
254
255 static int simple_config_lookup(struct dvb_frontend *fe,
256 struct tuner_params *t_params,
257 unsigned *frequency, u8 *config, u8 *cb)
258 {
259 struct tuner_simple_priv *priv = fe->tuner_priv;
260 int i;
261
262 for (i = 0; i < t_params->count; i++) {
263 if (*frequency > t_params->ranges[i].limit)
264 continue;
265 break;
266 }
267 if (i == t_params->count) {
268 tuner_dbg("frequency out of range (%d > %d)\n",
269 *frequency, t_params->ranges[i - 1].limit);
270 *frequency = t_params->ranges[--i].limit;
271 }
272 *config = t_params->ranges[i].config;
273 *cb = t_params->ranges[i].cb;
274
275 tuner_dbg("freq = %d.%02d (%d), range = %d, "
276 "config = 0x%02x, cb = 0x%02x\n",
277 *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
278 i, *config, *cb);
279
280 return i;
281 }
282
283 /* ---------------------------------------------------------------------- */
284
285 static void simple_set_rf_input(struct dvb_frontend *fe,
286 u8 *config, u8 *cb, unsigned int rf)
287 {
288 struct tuner_simple_priv *priv = fe->tuner_priv;
289
290 switch (priv->type) {
291 case TUNER_PHILIPS_TUV1236D:
292 switch (rf) {
293 case 1:
294 *cb |= 0x08;
295 break;
296 default:
297 *cb &= ~0x08;
298 break;
299 }
300 break;
301 case TUNER_PHILIPS_FCV1236D:
302 switch (rf) {
303 case 1:
304 *cb |= 0x01;
305 break;
306 default:
307 *cb &= ~0x01;
308 break;
309 }
310 break;
311 default:
312 break;
313 }
314 }
315
316 static int simple_std_setup(struct dvb_frontend *fe,
317 struct analog_parameters *params,
318 u8 *config, u8 *cb)
319 {
320 struct tuner_simple_priv *priv = fe->tuner_priv;
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 struct tuner_i2c_props i2c = priv->i2c_props;
390 /* 0x40 -> ATSC antenna input 1 */
391 /* 0x48 -> ATSC antenna input 2 */
392 /* 0x00 -> NTSC antenna input 1 */
393 /* 0x08 -> NTSC antenna input 2 */
394 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
395 *cb &= ~0x40;
396 if (params->std & V4L2_STD_ATSC) {
397 *cb |= 0x40;
398 buffer[1] = 0x04;
399 }
400 /* set to the correct mode (analog or digital) */
401 i2c.addr = 0x0a;
402 rc = tuner_i2c_xfer_send(&i2c, &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(&i2c, &buffer[2], 2);
407 if (2 != rc)
408 tuner_warn("i2c i/o error: rc == %d "
409 "(should be 2)\n", rc);
410 break;
411 }
412 }
413 if (atv_input[priv->nr])
414 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
415
416 return 0;
417 }
418
419 static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux)
420 {
421 struct tuner_simple_priv *priv = fe->tuner_priv;
422 int rc;
423 u8 buffer[2];
424
425 buffer[0] = (config & ~0x38) | 0x18;
426 buffer[1] = aux;
427
428 tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]);
429
430 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
431 if (2 != rc)
432 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc);
433
434 return rc == 2 ? 0 : rc;
435 }
436
437 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
438 u16 div, u8 config, u8 cb)
439 {
440 struct tuner_simple_priv *priv = fe->tuner_priv;
441 int rc;
442
443 switch (priv->type) {
444 case TUNER_LG_TDVS_H06XF:
445 simple_set_aux_byte(fe, config, 0x20);
446 break;
447 case TUNER_PHILIPS_FQ1216LME_MK3:
448 simple_set_aux_byte(fe, config, 0x60); /* External AGC */
449 break;
450 case TUNER_MICROTUNE_4042FI5:
451 {
452 /* FIXME - this may also work for other tuners */
453 unsigned long timeout = jiffies + msecs_to_jiffies(1);
454 u8 status_byte = 0;
455
456 /* Wait until the PLL locks */
457 for (;;) {
458 if (time_after(jiffies, timeout))
459 return 0;
460 rc = tuner_i2c_xfer_recv(&priv->i2c_props,
461 &status_byte, 1);
462 if (1 != rc) {
463 tuner_warn("i2c i/o read error: rc == %d "
464 "(should be 1)\n", rc);
465 break;
466 }
467 if (status_byte & TUNER_PLL_LOCKED)
468 break;
469 udelay(10);
470 }
471
472 /* Set the charge pump for optimized phase noise figure */
473 config &= ~TUNER_CHARGE_PUMP;
474 buffer[0] = (div>>8) & 0x7f;
475 buffer[1] = div & 0xff;
476 buffer[2] = config;
477 buffer[3] = cb;
478 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
479 buffer[0], buffer[1], buffer[2], buffer[3]);
480
481 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
482 if (4 != rc)
483 tuner_warn("i2c i/o error: rc == %d "
484 "(should be 4)\n", rc);
485 break;
486 }
487 }
488
489 return 0;
490 }
491
492 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
493 {
494 struct tuner_simple_priv *priv = fe->tuner_priv;
495
496 switch (priv->type) {
497 case TUNER_TENA_9533_DI:
498 case TUNER_YMEC_TVF_5533MF:
499 tuner_dbg("This tuner doesn't have FM. "
500 "Most cards have a TEA5767 for FM\n");
501 return 0;
502 case TUNER_PHILIPS_FM1216ME_MK3:
503 case TUNER_PHILIPS_FM1236_MK3:
504 case TUNER_PHILIPS_FMD1216ME_MK3:
505 case TUNER_PHILIPS_FMD1216MEX_MK3:
506 case TUNER_LG_NTSC_TAPE:
507 case TUNER_PHILIPS_FM1256_IH3:
508 case TUNER_TCL_MF02GIP_5N:
509 buffer[3] = 0x19;
510 break;
511 case TUNER_TNF_5335MF:
512 buffer[3] = 0x11;
513 break;
514 case TUNER_LG_PAL_FM:
515 buffer[3] = 0xa5;
516 break;
517 case TUNER_THOMSON_DTT761X:
518 buffer[3] = 0x39;
519 break;
520 case TUNER_PHILIPS_FQ1216LME_MK3:
521 tuner_err("This tuner doesn't have FM\n");
522 /* Set the low band for sanity, since it covers 88-108 MHz */
523 buffer[3] = 0x01;
524 break;
525 case TUNER_MICROTUNE_4049FM5:
526 default:
527 buffer[3] = 0xa4;
528 break;
529 }
530
531 return 0;
532 }
533
534 /* ---------------------------------------------------------------------- */
535
536 static int simple_set_tv_freq(struct dvb_frontend *fe,
537 struct analog_parameters *params)
538 {
539 struct tuner_simple_priv *priv = fe->tuner_priv;
540 u8 config, cb;
541 u16 div;
542 struct tunertype *tun;
543 u8 buffer[4];
544 int rc, IFPCoff, i;
545 enum param_type desired_type;
546 struct tuner_params *t_params;
547
548 tun = priv->tun;
549
550 /* IFPCoff = Video Intermediate Frequency - Vif:
551 940 =16*58.75 NTSC/J (Japan)
552 732 =16*45.75 M/N STD
553 704 =16*44 ATSC (at DVB code)
554 632 =16*39.50 I U.K.
555 622.4=16*38.90 B/G D/K I, L STD
556 592 =16*37.00 D China
557 590 =16.36.875 B Australia
558 543.2=16*33.95 L' STD
559 171.2=16*10.70 FM Radio (at set_radio_freq)
560 */
561
562 if (params->std == V4L2_STD_NTSC_M_JP) {
563 IFPCoff = 940;
564 desired_type = TUNER_PARAM_TYPE_NTSC;
565 } else if ((params->std & V4L2_STD_MN) &&
566 !(params->std & ~V4L2_STD_MN)) {
567 IFPCoff = 732;
568 desired_type = TUNER_PARAM_TYPE_NTSC;
569 } else if (params->std == V4L2_STD_SECAM_LC) {
570 IFPCoff = 543;
571 desired_type = TUNER_PARAM_TYPE_SECAM;
572 } else {
573 IFPCoff = 623;
574 desired_type = TUNER_PARAM_TYPE_PAL;
575 }
576
577 t_params = simple_tuner_params(fe, desired_type);
578
579 i = simple_config_lookup(fe, t_params, &params->frequency,
580 &config, &cb);
581
582 div = params->frequency + IFPCoff + offset;
583
584 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
585 "Offset=%d.%02d MHz, div=%0d\n",
586 params->frequency / 16, params->frequency % 16 * 100 / 16,
587 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
588 offset / 16, offset % 16 * 100 / 16, div);
589
590 /* tv norm specific stuff for multi-norm tuners */
591 simple_std_setup(fe, params, &config, &cb);
592
593 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
594 buffer[0] = config;
595 buffer[1] = cb;
596 buffer[2] = (div>>8) & 0x7f;
597 buffer[3] = div & 0xff;
598 } else {
599 buffer[0] = (div>>8) & 0x7f;
600 buffer[1] = div & 0xff;
601 buffer[2] = config;
602 buffer[3] = cb;
603 }
604 priv->last_div = div;
605 if (t_params->has_tda9887) {
606 struct v4l2_priv_tun_config tda9887_cfg;
607 int tda_config = 0;
608 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
609 V4L2_STD_SECAM_LC)) &&
610 !(params->std & ~(V4L2_STD_SECAM_L |
611 V4L2_STD_SECAM_LC));
612
613 tda9887_cfg.tuner = TUNER_TDA9887;
614 tda9887_cfg.priv = &tda_config;
615
616 if (params->std == V4L2_STD_SECAM_LC) {
617 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
618 tda_config |= TDA9887_PORT1_ACTIVE;
619 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
620 tda_config |= TDA9887_PORT2_ACTIVE;
621 } else {
622 if (t_params->port1_active)
623 tda_config |= TDA9887_PORT1_ACTIVE;
624 if (t_params->port2_active)
625 tda_config |= TDA9887_PORT2_ACTIVE;
626 }
627 if (t_params->intercarrier_mode)
628 tda_config |= TDA9887_INTERCARRIER;
629 if (is_secam_l) {
630 if (i == 0 && t_params->default_top_secam_low)
631 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
632 else if (i == 1 && t_params->default_top_secam_mid)
633 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
634 else if (t_params->default_top_secam_high)
635 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
636 } else {
637 if (i == 0 && t_params->default_top_low)
638 tda_config |= TDA9887_TOP(t_params->default_top_low);
639 else if (i == 1 && t_params->default_top_mid)
640 tda_config |= TDA9887_TOP(t_params->default_top_mid);
641 else if (t_params->default_top_high)
642 tda_config |= TDA9887_TOP(t_params->default_top_high);
643 }
644 if (t_params->default_pll_gating_18)
645 tda_config |= TDA9887_GATING_18;
646 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
647 &tda9887_cfg);
648 }
649 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
650 buffer[0], buffer[1], buffer[2], buffer[3]);
651
652 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
653 if (4 != rc)
654 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
655
656 simple_post_tune(fe, &buffer[0], div, config, cb);
657
658 return 0;
659 }
660
661 static int simple_set_radio_freq(struct dvb_frontend *fe,
662 struct analog_parameters *params)
663 {
664 struct tunertype *tun;
665 struct tuner_simple_priv *priv = fe->tuner_priv;
666 u8 buffer[4];
667 u16 div;
668 int rc, j;
669 struct tuner_params *t_params;
670 unsigned int freq = params->frequency;
671
672 tun = priv->tun;
673
674 for (j = tun->count-1; j > 0; j--)
675 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
676 break;
677 /* default t_params (j=0) will be used if desired type wasn't found */
678 t_params = &tun->params[j];
679
680 /* Select Radio 1st IF used */
681 switch (t_params->radio_if) {
682 case 0: /* 10.7 MHz */
683 freq += (unsigned int)(10.7*16000);
684 break;
685 case 1: /* 33.3 MHz */
686 freq += (unsigned int)(33.3*16000);
687 break;
688 case 2: /* 41.3 MHz */
689 freq += (unsigned int)(41.3*16000);
690 break;
691 default:
692 tuner_warn("Unsupported radio_if value %d\n",
693 t_params->radio_if);
694 return 0;
695 }
696
697 buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
698 TUNER_RATIO_SELECT_50; /* 50 kHz step */
699
700 /* Bandswitch byte */
701 simple_radio_bandswitch(fe, &buffer[0]);
702
703 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
704 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
705 freq * (1/800) */
706 div = (freq + 400) / 800;
707
708 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
709 buffer[0] = buffer[2];
710 buffer[1] = buffer[3];
711 buffer[2] = (div>>8) & 0x7f;
712 buffer[3] = div & 0xff;
713 } else {
714 buffer[0] = (div>>8) & 0x7f;
715 buffer[1] = div & 0xff;
716 }
717
718 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
719 buffer[0], buffer[1], buffer[2], buffer[3]);
720 priv->last_div = div;
721
722 if (t_params->has_tda9887) {
723 int config = 0;
724 struct v4l2_priv_tun_config tda9887_cfg;
725
726 tda9887_cfg.tuner = TUNER_TDA9887;
727 tda9887_cfg.priv = &config;
728
729 if (t_params->port1_active &&
730 !t_params->port1_fm_high_sensitivity)
731 config |= TDA9887_PORT1_ACTIVE;
732 if (t_params->port2_active &&
733 !t_params->port2_fm_high_sensitivity)
734 config |= TDA9887_PORT2_ACTIVE;
735 if (t_params->intercarrier_mode)
736 config |= TDA9887_INTERCARRIER;
737 /* if (t_params->port1_set_for_fm_mono)
738 config &= ~TDA9887_PORT1_ACTIVE;*/
739 if (t_params->fm_gain_normal)
740 config |= TDA9887_GAIN_NORMAL;
741 if (t_params->radio_if == 2)
742 config |= TDA9887_RIF_41_3;
743 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
744 &tda9887_cfg);
745 }
746 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
747 if (4 != rc)
748 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
749
750 return 0;
751 }
752
753 static int simple_set_params(struct dvb_frontend *fe,
754 struct analog_parameters *params)
755 {
756 struct tuner_simple_priv *priv = fe->tuner_priv;
757 int ret = -EINVAL;
758
759 if (priv->i2c_props.adap == NULL)
760 return -EINVAL;
761
762 switch (params->mode) {
763 case V4L2_TUNER_RADIO:
764 ret = simple_set_radio_freq(fe, params);
765 priv->frequency = params->frequency * 125 / 2;
766 break;
767 case V4L2_TUNER_ANALOG_TV:
768 case V4L2_TUNER_DIGITAL_TV:
769 ret = simple_set_tv_freq(fe, params);
770 priv->frequency = params->frequency * 62500;
771 break;
772 }
773 priv->bandwidth = 0;
774
775 return ret;
776 }
777
778 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
779 const struct dvb_frontend_parameters *params)
780 {
781 struct tuner_simple_priv *priv = fe->tuner_priv;
782
783 switch (priv->type) {
784 case TUNER_PHILIPS_FMD1216ME_MK3:
785 case TUNER_PHILIPS_FMD1216MEX_MK3:
786 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
787 params->frequency >= 158870000)
788 buf[3] |= 0x08;
789 break;
790 case TUNER_PHILIPS_TD1316:
791 /* determine band */
792 buf[3] |= (params->frequency < 161000000) ? 1 :
793 (params->frequency < 444000000) ? 2 : 4;
794
795 /* setup PLL filter */
796 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
797 buf[3] |= 1 << 3;
798 break;
799 case TUNER_PHILIPS_TUV1236D:
800 case TUNER_PHILIPS_FCV1236D:
801 {
802 unsigned int new_rf;
803
804 if (dtv_input[priv->nr])
805 new_rf = dtv_input[priv->nr];
806 else
807 switch (params->u.vsb.modulation) {
808 case QAM_64:
809 case QAM_256:
810 new_rf = 1;
811 break;
812 case VSB_8:
813 default:
814 new_rf = 0;
815 break;
816 }
817 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
818 break;
819 }
820 default:
821 break;
822 }
823 }
824
825 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
826 const struct dvb_frontend_parameters *params)
827 {
828 /* This function returns the tuned frequency on success, 0 on error */
829 struct tuner_simple_priv *priv = fe->tuner_priv;
830 struct tunertype *tun = priv->tun;
831 static struct tuner_params *t_params;
832 u8 config, cb;
833 u32 div;
834 int ret;
835 unsigned frequency = params->frequency / 62500;
836
837 if (!tun->stepsize) {
838 /* tuner-core was loaded before the digital tuner was
839 * configured and somehow picked the wrong tuner type */
840 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
841 "without stepsize defined.\n",
842 priv->type, priv->tun->name);
843 return 0; /* failure */
844 }
845
846 t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
847 ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
848 if (ret < 0)
849 return 0; /* failure */
850
851 div = ((frequency + t_params->iffreq) * 62500 + offset +
852 tun->stepsize/2) / tun->stepsize;
853
854 buf[0] = div >> 8;
855 buf[1] = div & 0xff;
856 buf[2] = config;
857 buf[3] = cb;
858
859 simple_set_dvb(fe, buf, params);
860
861 tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
862 tun->name, div, buf[0], buf[1], buf[2], buf[3]);
863
864 /* calculate the frequency we set it to */
865 return (div * tun->stepsize) - t_params->iffreq;
866 }
867
868 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
869 struct dvb_frontend_parameters *params,
870 u8 *buf, int buf_len)
871 {
872 struct tuner_simple_priv *priv = fe->tuner_priv;
873 u32 frequency;
874
875 if (buf_len < 5)
876 return -EINVAL;
877
878 frequency = simple_dvb_configure(fe, buf+1, params);
879 if (frequency == 0)
880 return -EINVAL;
881
882 buf[0] = priv->i2c_props.addr;
883
884 priv->frequency = frequency;
885 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
886 params->u.ofdm.bandwidth : 0;
887
888 return 5;
889 }
890
891 static int simple_dvb_set_params(struct dvb_frontend *fe,
892 struct dvb_frontend_parameters *params)
893 {
894 struct tuner_simple_priv *priv = fe->tuner_priv;
895 u32 prev_freq, prev_bw;
896 int ret;
897 u8 buf[5];
898
899 if (priv->i2c_props.adap == NULL)
900 return -EINVAL;
901
902 prev_freq = priv->frequency;
903 prev_bw = priv->bandwidth;
904
905 ret = simple_dvb_calc_regs(fe, params, buf, 5);
906 if (ret != 5)
907 goto fail;
908
909 /* put analog demod in standby when tuning digital */
910 if (fe->ops.analog_ops.standby)
911 fe->ops.analog_ops.standby(fe);
912
913 if (fe->ops.i2c_gate_ctrl)
914 fe->ops.i2c_gate_ctrl(fe, 1);
915
916 /* buf[0] contains the i2c address, but *
917 * we already have it in i2c_props.addr */
918 ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
919 if (ret != 4)
920 goto fail;
921
922 return 0;
923 fail:
924 /* calc_regs sets frequency and bandwidth. if we failed, unset them */
925 priv->frequency = prev_freq;
926 priv->bandwidth = prev_bw;
927
928 return ret;
929 }
930
931 static int simple_init(struct dvb_frontend *fe)
932 {
933 struct tuner_simple_priv *priv = fe->tuner_priv;
934
935 if (priv->i2c_props.adap == NULL)
936 return -EINVAL;
937
938 if (priv->tun->initdata) {
939 int ret;
940
941 if (fe->ops.i2c_gate_ctrl)
942 fe->ops.i2c_gate_ctrl(fe, 1);
943
944 ret = tuner_i2c_xfer_send(&priv->i2c_props,
945 priv->tun->initdata + 1,
946 priv->tun->initdata[0]);
947 if (ret != priv->tun->initdata[0])
948 return ret;
949 }
950
951 return 0;
952 }
953
954 static int simple_sleep(struct dvb_frontend *fe)
955 {
956 struct tuner_simple_priv *priv = fe->tuner_priv;
957
958 if (priv->i2c_props.adap == NULL)
959 return -EINVAL;
960
961 if (priv->tun->sleepdata) {
962 int ret;
963
964 if (fe->ops.i2c_gate_ctrl)
965 fe->ops.i2c_gate_ctrl(fe, 1);
966
967 ret = tuner_i2c_xfer_send(&priv->i2c_props,
968 priv->tun->sleepdata + 1,
969 priv->tun->sleepdata[0]);
970 if (ret != priv->tun->sleepdata[0])
971 return ret;
972 }
973
974 return 0;
975 }
976
977 static int simple_release(struct dvb_frontend *fe)
978 {
979 struct tuner_simple_priv *priv = fe->tuner_priv;
980
981 mutex_lock(&tuner_simple_list_mutex);
982
983 if (priv)
984 hybrid_tuner_release_state(priv);
985
986 mutex_unlock(&tuner_simple_list_mutex);
987
988 fe->tuner_priv = NULL;
989
990 return 0;
991 }
992
993 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
994 {
995 struct tuner_simple_priv *priv = fe->tuner_priv;
996 *frequency = priv->frequency;
997 return 0;
998 }
999
1000 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1001 {
1002 struct tuner_simple_priv *priv = fe->tuner_priv;
1003 *bandwidth = priv->bandwidth;
1004 return 0;
1005 }
1006
1007 static struct dvb_tuner_ops simple_tuner_ops = {
1008 .init = simple_init,
1009 .sleep = simple_sleep,
1010 .set_analog_params = simple_set_params,
1011 .set_params = simple_dvb_set_params,
1012 .calc_regs = simple_dvb_calc_regs,
1013 .release = simple_release,
1014 .get_frequency = simple_get_frequency,
1015 .get_bandwidth = simple_get_bandwidth,
1016 .get_status = simple_get_status,
1017 .get_rf_strength = simple_get_rf_strength,
1018 };
1019
1020 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1021 struct i2c_adapter *i2c_adap,
1022 u8 i2c_addr,
1023 unsigned int type)
1024 {
1025 struct tuner_simple_priv *priv = NULL;
1026 int instance;
1027
1028 if (type >= tuner_count) {
1029 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1030 __func__, type, tuner_count-1);
1031 return NULL;
1032 }
1033
1034 /* If i2c_adap is set, check that the tuner is at the correct address.
1035 * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1036 * by the digital demod via calc_regs.
1037 */
1038 if (i2c_adap != NULL) {
1039 u8 b[1];
1040 struct i2c_msg msg = {
1041 .addr = i2c_addr, .flags = I2C_M_RD,
1042 .buf = b, .len = 1,
1043 };
1044
1045 if (fe->ops.i2c_gate_ctrl)
1046 fe->ops.i2c_gate_ctrl(fe, 1);
1047
1048 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1049 printk(KERN_WARNING "tuner-simple %d-%04x: "
1050 "unable to probe %s, proceeding anyway.",
1051 i2c_adapter_id(i2c_adap), i2c_addr,
1052 tuners[type].name);
1053
1054 if (fe->ops.i2c_gate_ctrl)
1055 fe->ops.i2c_gate_ctrl(fe, 0);
1056 }
1057
1058 mutex_lock(&tuner_simple_list_mutex);
1059
1060 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1061 hybrid_tuner_instance_list,
1062 i2c_adap, i2c_addr,
1063 "tuner-simple");
1064 switch (instance) {
1065 case 0:
1066 mutex_unlock(&tuner_simple_list_mutex);
1067 return NULL;
1068 case 1:
1069 fe->tuner_priv = priv;
1070
1071 priv->type = type;
1072 priv->tun = &tuners[type];
1073 priv->nr = simple_devcount++;
1074 break;
1075 default:
1076 fe->tuner_priv = priv;
1077 break;
1078 }
1079
1080 mutex_unlock(&tuner_simple_list_mutex);
1081
1082 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1083 sizeof(struct dvb_tuner_ops));
1084
1085 if (type != priv->type)
1086 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1087 type, priv->type, priv->tun->name);
1088 else
1089 tuner_info("type set to %d (%s)\n",
1090 priv->type, priv->tun->name);
1091
1092 if ((debug) || ((atv_input[priv->nr] > 0) ||
1093 (dtv_input[priv->nr] > 0))) {
1094 if (0 == atv_input[priv->nr])
1095 tuner_info("tuner %d atv rf input will be "
1096 "autoselected\n", priv->nr);
1097 else
1098 tuner_info("tuner %d atv rf input will be "
1099 "set to input %d (insmod option)\n",
1100 priv->nr, atv_input[priv->nr]);
1101 if (0 == dtv_input[priv->nr])
1102 tuner_info("tuner %d dtv rf input will be "
1103 "autoselected\n", priv->nr);
1104 else
1105 tuner_info("tuner %d dtv rf input will be "
1106 "set to input %d (insmod option)\n",
1107 priv->nr, dtv_input[priv->nr]);
1108 }
1109
1110 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1111 sizeof(fe->ops.tuner_ops.info.name));
1112
1113 return fe;
1114 }
1115 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1116
1117 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1118 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1119 MODULE_LICENSE("GPL");
1120
1121 /*
1122 * Overrides for Emacs so that we follow Linus's tabbing style.
1123 * ---------------------------------------------------------------------------
1124 * Local variables:
1125 * c-basic-offset: 8
1126 * End:
1127 */
Linux with added FPC-III support