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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / media / tuners / tuner-simple.c
blobca274c2d8c709b31ada499a22aaa271aa02e91ca
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 bool radio_mode;
119 };
120
121 /* ---------------------------------------------------------------------- */
122
123 static int tuner_read_status(struct dvb_frontend *fe)
124 {
125 struct tuner_simple_priv *priv = fe->tuner_priv;
126 unsigned char byte;
127
128 if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
129 return 0;
130
131 return byte;
132 }
133
134 static inline int tuner_signal(const int status)
135 {
136 return (status & TUNER_SIGNAL) << 13;
137 }
138
139 static inline int tuner_stereo(const int type, const int status)
140 {
141 switch (type) {
142 case TUNER_PHILIPS_FM1216ME_MK3:
143 case TUNER_PHILIPS_FM1236_MK3:
144 case TUNER_PHILIPS_FM1256_IH3:
145 case TUNER_LG_NTSC_TAPE:
146 case TUNER_TCL_MF02GIP_5N:
147 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
148 case TUNER_PHILIPS_FM1216MK5:
149 return status | TUNER_STEREO;
150 default:
151 return status & TUNER_STEREO;
152 }
153 }
154
155 static inline int tuner_islocked(const int status)
156 {
157 return (status & TUNER_FL);
158 }
159
160 static inline int tuner_afcstatus(const int status)
161 {
162 return (status & TUNER_AFC) - 2;
163 }
164
165
166 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
167 {
168 struct tuner_simple_priv *priv = fe->tuner_priv;
169 int tuner_status;
170
171 if (priv->i2c_props.adap == NULL)
172 return -EINVAL;
173
174 tuner_status = tuner_read_status(fe);
175
176 *status = 0;
177
178 if (tuner_islocked(tuner_status))
179 *status = TUNER_STATUS_LOCKED;
180 if (tuner_stereo(priv->type, tuner_status))
181 *status |= TUNER_STATUS_STEREO;
182
183 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
184
185 return 0;
186 }
187
188 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
189 {
190 struct tuner_simple_priv *priv = fe->tuner_priv;
191 int signal;
192
193 if (priv->i2c_props.adap == NULL || !priv->radio_mode)
194 return -EINVAL;
195
196 signal = tuner_signal(tuner_read_status(fe));
197
198 *strength = signal;
199
200 tuner_dbg("Signal strength: %d\n", signal);
201
202 return 0;
203 }
204
205 /* ---------------------------------------------------------------------- */
206
207 static inline char *tuner_param_name(enum param_type type)
208 {
209 char *name;
210
211 switch (type) {
212 case TUNER_PARAM_TYPE_RADIO:
213 name = "radio";
214 break;
215 case TUNER_PARAM_TYPE_PAL:
216 name = "pal";
217 break;
218 case TUNER_PARAM_TYPE_SECAM:
219 name = "secam";
220 break;
221 case TUNER_PARAM_TYPE_NTSC:
222 name = "ntsc";
223 break;
224 case TUNER_PARAM_TYPE_DIGITAL:
225 name = "digital";
226 break;
227 default:
228 name = "unknown";
229 break;
230 }
231 return name;
232 }
233
234 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
235 enum param_type desired_type)
236 {
237 struct tuner_simple_priv *priv = fe->tuner_priv;
238 struct tunertype *tun = priv->tun;
239 int i;
240
241 for (i = 0; i < tun->count; i++)
242 if (desired_type == tun->params[i].type)
243 break;
244
245 /* use default tuner params if desired_type not available */
246 if (i == tun->count) {
247 tuner_dbg("desired params (%s) undefined for tuner %d\n",
248 tuner_param_name(desired_type), priv->type);
249 i = 0;
250 }
251
252 tuner_dbg("using tuner params #%d (%s)\n", i,
253 tuner_param_name(tun->params[i].type));
254
255 return &tun->params[i];
256 }
257
258 static int simple_config_lookup(struct dvb_frontend *fe,
259 struct tuner_params *t_params,
260 unsigned *frequency, u8 *config, u8 *cb)
261 {
262 struct tuner_simple_priv *priv = fe->tuner_priv;
263 int i;
264
265 for (i = 0; i < t_params->count; i++) {
266 if (*frequency > t_params->ranges[i].limit)
267 continue;
268 break;
269 }
270 if (i == t_params->count) {
271 tuner_dbg("frequency out of range (%d > %d)\n",
272 *frequency, t_params->ranges[i - 1].limit);
273 *frequency = t_params->ranges[--i].limit;
274 }
275 *config = t_params->ranges[i].config;
276 *cb = t_params->ranges[i].cb;
277
278 tuner_dbg("freq = %d.%02d (%d), range = %d, "
279 "config = 0x%02x, cb = 0x%02x\n",
280 *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
281 i, *config, *cb);
282
283 return i;
284 }
285
286 /* ---------------------------------------------------------------------- */
287
288 static void simple_set_rf_input(struct dvb_frontend *fe,
289 u8 *config, u8 *cb, unsigned int rf)
290 {
291 struct tuner_simple_priv *priv = fe->tuner_priv;
292
293 switch (priv->type) {
294 case TUNER_PHILIPS_TUV1236D:
295 switch (rf) {
296 case 1:
297 *cb |= 0x08;
298 break;
299 default:
300 *cb &= ~0x08;
301 break;
302 }
303 break;
304 case TUNER_PHILIPS_FCV1236D:
305 switch (rf) {
306 case 1:
307 *cb |= 0x01;
308 break;
309 default:
310 *cb &= ~0x01;
311 break;
312 }
313 break;
314 default:
315 break;
316 }
317 }
318
319 static int simple_std_setup(struct dvb_frontend *fe,
320 struct analog_parameters *params,
321 u8 *config, u8 *cb)
322 {
323 struct tuner_simple_priv *priv = fe->tuner_priv;
324 int rc;
325
326 /* tv norm specific stuff for multi-norm tuners */
327 switch (priv->type) {
328 case TUNER_PHILIPS_SECAM: /* FI1216MF */
329 /* 0x01 -> ??? no change ??? */
330 /* 0x02 -> PAL BDGHI / SECAM L */
331 /* 0x04 -> ??? PAL others / SECAM others ??? */
332 *cb &= ~0x03;
333 if (params->std & V4L2_STD_SECAM_L)
334 /* also valid for V4L2_STD_SECAM */
335 *cb |= PHILIPS_MF_SET_STD_L;
336 else if (params->std & V4L2_STD_SECAM_LC)
337 *cb |= PHILIPS_MF_SET_STD_LC;
338 else /* V4L2_STD_B|V4L2_STD_GH */
339 *cb |= PHILIPS_MF_SET_STD_BG;
340 break;
341
342 case TUNER_TEMIC_4046FM5:
343 *cb &= ~0x0f;
344
345 if (params->std & V4L2_STD_PAL_BG) {
346 *cb |= TEMIC_SET_PAL_BG;
347
348 } else if (params->std & V4L2_STD_PAL_I) {
349 *cb |= TEMIC_SET_PAL_I;
350
351 } else if (params->std & V4L2_STD_PAL_DK) {
352 *cb |= TEMIC_SET_PAL_DK;
353
354 } else if (params->std & V4L2_STD_SECAM_L) {
355 *cb |= TEMIC_SET_PAL_L;
356
357 }
358 break;
359
360 case TUNER_PHILIPS_FQ1216ME:
361 *cb &= ~0x0f;
362
363 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
364 *cb |= PHILIPS_SET_PAL_BGDK;
365
366 } else if (params->std & V4L2_STD_PAL_I) {
367 *cb |= PHILIPS_SET_PAL_I;
368
369 } else if (params->std & V4L2_STD_SECAM_L) {
370 *cb |= PHILIPS_SET_PAL_L;
371
372 }
373 break;
374
375 case TUNER_PHILIPS_FCV1236D:
376 /* 0x00 -> ATSC antenna input 1 */
377 /* 0x01 -> ATSC antenna input 2 */
378 /* 0x02 -> NTSC antenna input 1 */
379 /* 0x03 -> NTSC antenna input 2 */
380 *cb &= ~0x03;
381 if (!(params->std & V4L2_STD_ATSC))
382 *cb |= 2;
383 break;
384
385 case TUNER_MICROTUNE_4042FI5:
386 /* Set the charge pump for fast tuning */
387 *config |= TUNER_CHARGE_PUMP;
388 break;
389
390 case TUNER_PHILIPS_TUV1236D:
391 {
392 struct tuner_i2c_props i2c = priv->i2c_props;
393 /* 0x40 -> ATSC antenna input 1 */
394 /* 0x48 -> ATSC antenna input 2 */
395 /* 0x00 -> NTSC antenna input 1 */
396 /* 0x08 -> NTSC antenna input 2 */
397 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
398 *cb &= ~0x40;
399 if (params->std & V4L2_STD_ATSC) {
400 *cb |= 0x40;
401 buffer[1] = 0x04;
402 }
403 /* set to the correct mode (analog or digital) */
404 i2c.addr = 0x0a;
405 rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2);
406 if (2 != rc)
407 tuner_warn("i2c i/o error: rc == %d "
408 "(should be 2)\n", rc);
409 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
410 if (2 != rc)
411 tuner_warn("i2c i/o error: rc == %d "
412 "(should be 2)\n", rc);
413 break;
414 }
415 }
416 if (atv_input[priv->nr])
417 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
418
419 return 0;
420 }
421
422 static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux)
423 {
424 struct tuner_simple_priv *priv = fe->tuner_priv;
425 int rc;
426 u8 buffer[2];
427
428 buffer[0] = (config & ~0x38) | 0x18;
429 buffer[1] = aux;
430
431 tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]);
432
433 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
434 if (2 != rc)
435 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc);
436
437 return rc == 2 ? 0 : rc;
438 }
439
440 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
441 u16 div, u8 config, u8 cb)
442 {
443 struct tuner_simple_priv *priv = fe->tuner_priv;
444 int rc;
445
446 switch (priv->type) {
447 case TUNER_LG_TDVS_H06XF:
448 simple_set_aux_byte(fe, config, 0x20);
449 break;
450 case TUNER_PHILIPS_FQ1216LME_MK3:
451 simple_set_aux_byte(fe, config, 0x60); /* External AGC */
452 break;
453 case TUNER_MICROTUNE_4042FI5:
454 {
455 /* FIXME - this may also work for other tuners */
456 unsigned long timeout = jiffies + msecs_to_jiffies(1);
457 u8 status_byte = 0;
458
459 /* Wait until the PLL locks */
460 for (;;) {
461 if (time_after(jiffies, timeout))
462 return 0;
463 rc = tuner_i2c_xfer_recv(&priv->i2c_props,
464 &status_byte, 1);
465 if (1 != rc) {
466 tuner_warn("i2c i/o read error: rc == %d "
467 "(should be 1)\n", rc);
468 break;
469 }
470 if (status_byte & TUNER_PLL_LOCKED)
471 break;
472 udelay(10);
473 }
474
475 /* Set the charge pump for optimized phase noise figure */
476 config &= ~TUNER_CHARGE_PUMP;
477 buffer[0] = (div>>8) & 0x7f;
478 buffer[1] = div & 0xff;
479 buffer[2] = config;
480 buffer[3] = cb;
481 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
482 buffer[0], buffer[1], buffer[2], buffer[3]);
483
484 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
485 if (4 != rc)
486 tuner_warn("i2c i/o error: rc == %d "
487 "(should be 4)\n", rc);
488 break;
489 }
490 }
491
492 return 0;
493 }
494
495 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
496 {
497 struct tuner_simple_priv *priv = fe->tuner_priv;
498
499 switch (priv->type) {
500 case TUNER_TENA_9533_DI:
501 case TUNER_YMEC_TVF_5533MF:
502 tuner_dbg("This tuner doesn't have FM. "
503 "Most cards have a TEA5767 for FM\n");
504 return 0;
505 case TUNER_PHILIPS_FM1216ME_MK3:
506 case TUNER_PHILIPS_FM1236_MK3:
507 case TUNER_PHILIPS_FMD1216ME_MK3:
508 case TUNER_PHILIPS_FMD1216MEX_MK3:
509 case TUNER_LG_NTSC_TAPE:
510 case TUNER_PHILIPS_FM1256_IH3:
511 case TUNER_TCL_MF02GIP_5N:
512 buffer[3] = 0x19;
513 break;
514 case TUNER_PHILIPS_FM1216MK5:
515 buffer[2] = 0x88;
516 buffer[3] = 0x09;
517 break;
518 case TUNER_TNF_5335MF:
519 buffer[3] = 0x11;
520 break;
521 case TUNER_LG_PAL_FM:
522 buffer[3] = 0xa5;
523 break;
524 case TUNER_THOMSON_DTT761X:
525 buffer[3] = 0x39;
526 break;
527 case TUNER_PHILIPS_FQ1216LME_MK3:
528 case TUNER_PHILIPS_FQ1236_MK5:
529 tuner_err("This tuner doesn't have FM\n");
530 /* Set the low band for sanity, since it covers 88-108 MHz */
531 buffer[3] = 0x01;
532 break;
533 case TUNER_MICROTUNE_4049FM5:
534 default:
535 buffer[3] = 0xa4;
536 break;
537 }
538
539 return 0;
540 }
541
542 /* ---------------------------------------------------------------------- */
543
544 static int simple_set_tv_freq(struct dvb_frontend *fe,
545 struct analog_parameters *params)
546 {
547 struct tuner_simple_priv *priv = fe->tuner_priv;
548 u8 config, cb;
549 u16 div;
550 u8 buffer[4];
551 int rc, IFPCoff, i;
552 enum param_type desired_type;
553 struct tuner_params *t_params;
554
555 /* IFPCoff = Video Intermediate Frequency - Vif:
556 940 =16*58.75 NTSC/J (Japan)
557 732 =16*45.75 M/N STD
558 704 =16*44 ATSC (at DVB code)
559 632 =16*39.50 I U.K.
560 622.4=16*38.90 B/G D/K I, L STD
561 592 =16*37.00 D China
562 590 =16.36.875 B Australia
563 543.2=16*33.95 L' STD
564 171.2=16*10.70 FM Radio (at set_radio_freq)
565 */
566
567 if (params->std == V4L2_STD_NTSC_M_JP) {
568 IFPCoff = 940;
569 desired_type = TUNER_PARAM_TYPE_NTSC;
570 } else if ((params->std & V4L2_STD_MN) &&
571 !(params->std & ~V4L2_STD_MN)) {
572 IFPCoff = 732;
573 desired_type = TUNER_PARAM_TYPE_NTSC;
574 } else if (params->std == V4L2_STD_SECAM_LC) {
575 IFPCoff = 543;
576 desired_type = TUNER_PARAM_TYPE_SECAM;
577 } else {
578 IFPCoff = 623;
579 desired_type = TUNER_PARAM_TYPE_PAL;
580 }
581
582 t_params = simple_tuner_params(fe, desired_type);
583
584 i = simple_config_lookup(fe, t_params, &params->frequency,
585 &config, &cb);
586
587 div = params->frequency + IFPCoff + offset;
588
589 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
590 "Offset=%d.%02d MHz, div=%0d\n",
591 params->frequency / 16, params->frequency % 16 * 100 / 16,
592 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
593 offset / 16, offset % 16 * 100 / 16, div);
594
595 /* tv norm specific stuff for multi-norm tuners */
596 simple_std_setup(fe, params, &config, &cb);
597
598 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
599 buffer[0] = config;
600 buffer[1] = cb;
601 buffer[2] = (div>>8) & 0x7f;
602 buffer[3] = div & 0xff;
603 } else {
604 buffer[0] = (div>>8) & 0x7f;
605 buffer[1] = div & 0xff;
606 buffer[2] = config;
607 buffer[3] = cb;
608 }
609 priv->last_div = div;
610 if (t_params->has_tda9887) {
611 struct v4l2_priv_tun_config tda9887_cfg;
612 int tda_config = 0;
613 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
614 V4L2_STD_SECAM_LC)) &&
615 !(params->std & ~(V4L2_STD_SECAM_L |
616 V4L2_STD_SECAM_LC));
617
618 tda9887_cfg.tuner = TUNER_TDA9887;
619 tda9887_cfg.priv = &tda_config;
620
621 if (params->std == V4L2_STD_SECAM_LC) {
622 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
623 tda_config |= TDA9887_PORT1_ACTIVE;
624 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
625 tda_config |= TDA9887_PORT2_ACTIVE;
626 } else {
627 if (t_params->port1_active)
628 tda_config |= TDA9887_PORT1_ACTIVE;
629 if (t_params->port2_active)
630 tda_config |= TDA9887_PORT2_ACTIVE;
631 }
632 if (t_params->intercarrier_mode)
633 tda_config |= TDA9887_INTERCARRIER;
634 if (is_secam_l) {
635 if (i == 0 && t_params->default_top_secam_low)
636 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
637 else if (i == 1 && t_params->default_top_secam_mid)
638 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
639 else if (t_params->default_top_secam_high)
640 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
641 } else {
642 if (i == 0 && t_params->default_top_low)
643 tda_config |= TDA9887_TOP(t_params->default_top_low);
644 else if (i == 1 && t_params->default_top_mid)
645 tda_config |= TDA9887_TOP(t_params->default_top_mid);
646 else if (t_params->default_top_high)
647 tda_config |= TDA9887_TOP(t_params->default_top_high);
648 }
649 if (t_params->default_pll_gating_18)
650 tda_config |= TDA9887_GATING_18;
651 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
652 &tda9887_cfg);
653 }
654 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
655 buffer[0], buffer[1], buffer[2], buffer[3]);
656
657 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
658 if (4 != rc)
659 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
660
661 simple_post_tune(fe, &buffer[0], div, config, cb);
662
663 return 0;
664 }
665
666 static int simple_set_radio_freq(struct dvb_frontend *fe,
667 struct analog_parameters *params)
668 {
669 struct tunertype *tun;
670 struct tuner_simple_priv *priv = fe->tuner_priv;
671 u8 buffer[4];
672 u16 div;
673 int rc, j;
674 struct tuner_params *t_params;
675 unsigned int freq = params->frequency;
676
677 tun = priv->tun;
678
679 for (j = tun->count-1; j > 0; j--)
680 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
681 break;
682 /* default t_params (j=0) will be used if desired type wasn't found */
683 t_params = &tun->params[j];
684
685 /* Select Radio 1st IF used */
686 switch (t_params->radio_if) {
687 case 0: /* 10.7 MHz */
688 freq += (unsigned int)(10.7*16000);
689 break;
690 case 1: /* 33.3 MHz */
691 freq += (unsigned int)(33.3*16000);
692 break;
693 case 2: /* 41.3 MHz */
694 freq += (unsigned int)(41.3*16000);
695 break;
696 default:
697 tuner_warn("Unsupported radio_if value %d\n",
698 t_params->radio_if);
699 return 0;
700 }
701
702 buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
703 TUNER_RATIO_SELECT_50; /* 50 kHz step */
704
705 /* Bandswitch byte */
706 simple_radio_bandswitch(fe, &buffer[0]);
707
708 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
709 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
710 freq * (1/800) */
711 div = (freq + 400) / 800;
712
713 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
714 buffer[0] = buffer[2];
715 buffer[1] = buffer[3];
716 buffer[2] = (div>>8) & 0x7f;
717 buffer[3] = div & 0xff;
718 } else {
719 buffer[0] = (div>>8) & 0x7f;
720 buffer[1] = div & 0xff;
721 }
722
723 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
724 buffer[0], buffer[1], buffer[2], buffer[3]);
725 priv->last_div = div;
726
727 if (t_params->has_tda9887) {
728 int config = 0;
729 struct v4l2_priv_tun_config tda9887_cfg;
730
731 tda9887_cfg.tuner = TUNER_TDA9887;
732 tda9887_cfg.priv = &config;
733
734 if (t_params->port1_active &&
735 !t_params->port1_fm_high_sensitivity)
736 config |= TDA9887_PORT1_ACTIVE;
737 if (t_params->port2_active &&
738 !t_params->port2_fm_high_sensitivity)
739 config |= TDA9887_PORT2_ACTIVE;
740 if (t_params->intercarrier_mode)
741 config |= TDA9887_INTERCARRIER;
742 /* if (t_params->port1_set_for_fm_mono)
743 config &= ~TDA9887_PORT1_ACTIVE;*/
744 if (t_params->fm_gain_normal)
745 config |= TDA9887_GAIN_NORMAL;
746 if (t_params->radio_if == 2)
747 config |= TDA9887_RIF_41_3;
748 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
749 &tda9887_cfg);
750 }
751 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
752 if (4 != rc)
753 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
754
755 /* Write AUX byte */
756 switch (priv->type) {
757 case TUNER_PHILIPS_FM1216ME_MK3:
758 buffer[2] = 0x98;
759 buffer[3] = 0x20; /* set TOP AGC */
760 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
761 if (4 != rc)
762 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
763 break;
764 }
765
766 return 0;
767 }
768
769 static int simple_set_params(struct dvb_frontend *fe,
770 struct analog_parameters *params)
771 {
772 struct tuner_simple_priv *priv = fe->tuner_priv;
773 int ret = -EINVAL;
774
775 if (priv->i2c_props.adap == NULL)
776 return -EINVAL;
777
778 switch (params->mode) {
779 case V4L2_TUNER_RADIO:
780 priv->radio_mode = true;
781 ret = simple_set_radio_freq(fe, params);
782 priv->frequency = params->frequency * 125 / 2;
783 break;
784 case V4L2_TUNER_ANALOG_TV:
785 case V4L2_TUNER_DIGITAL_TV:
786 priv->radio_mode = false;
787 ret = simple_set_tv_freq(fe, params);
788 priv->frequency = params->frequency * 62500;
789 break;
790 }
791 priv->bandwidth = 0;
792
793 return ret;
794 }
795
796 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
797 const u32 delsys,
798 const u32 frequency,
799 const u32 bandwidth)
800 {
801 struct tuner_simple_priv *priv = fe->tuner_priv;
802
803 switch (priv->type) {
804 case TUNER_PHILIPS_FMD1216ME_MK3:
805 case TUNER_PHILIPS_FMD1216MEX_MK3:
806 if (bandwidth == 8000000 &&
807 frequency >= 158870000)
808 buf[3] |= 0x08;
809 break;
810 case TUNER_PHILIPS_TD1316:
811 /* determine band */
812 buf[3] |= (frequency < 161000000) ? 1 :
813 (frequency < 444000000) ? 2 : 4;
814
815 /* setup PLL filter */
816 if (bandwidth == 8000000)
817 buf[3] |= 1 << 3;
818 break;
819 case TUNER_PHILIPS_TUV1236D:
820 case TUNER_PHILIPS_FCV1236D:
821 {
822 unsigned int new_rf;
823
824 if (dtv_input[priv->nr])
825 new_rf = dtv_input[priv->nr];
826 else
827 switch (delsys) {
828 case SYS_DVBC_ANNEX_B:
829 new_rf = 1;
830 break;
831 case SYS_ATSC:
832 default:
833 new_rf = 0;
834 break;
835 }
836 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
837 break;
838 }
839 default:
840 break;
841 }
842 }
843
844 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
845 const u32 delsys,
846 const u32 freq,
847 const u32 bw)
848 {
849 /* This function returns the tuned frequency on success, 0 on error */
850 struct tuner_simple_priv *priv = fe->tuner_priv;
851 struct tunertype *tun = priv->tun;
852 static struct tuner_params *t_params;
853 u8 config, cb;
854 u32 div;
855 int ret;
856 u32 frequency = freq / 62500;
857
858 if (!tun->stepsize) {
859 /* tuner-core was loaded before the digital tuner was
860 * configured and somehow picked the wrong tuner type */
861 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
862 "without stepsize defined.\n",
863 priv->type, priv->tun->name);
864 return 0; /* failure */
865 }
866
867 t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
868 ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
869 if (ret < 0)
870 return 0; /* failure */
871
872 div = ((frequency + t_params->iffreq) * 62500 + offset +
873 tun->stepsize/2) / tun->stepsize;
874
875 buf[0] = div >> 8;
876 buf[1] = div & 0xff;
877 buf[2] = config;
878 buf[3] = cb;
879
880 simple_set_dvb(fe, buf, delsys, freq, bw);
881
882 tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
883 tun->name, div, buf[0], buf[1], buf[2], buf[3]);
884
885 /* calculate the frequency we set it to */
886 return (div * tun->stepsize) - t_params->iffreq;
887 }
888
889 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
890 u8 *buf, int buf_len)
891 {
892 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
893 u32 delsys = c->delivery_system;
894 u32 bw = c->bandwidth_hz;
895 struct tuner_simple_priv *priv = fe->tuner_priv;
896 u32 frequency;
897
898 if (buf_len < 5)
899 return -EINVAL;
900
901 frequency = simple_dvb_configure(fe, buf+1, delsys, c->frequency, bw);
902 if (frequency == 0)
903 return -EINVAL;
904
905 buf[0] = priv->i2c_props.addr;
906
907 priv->frequency = frequency;
908 priv->bandwidth = c->bandwidth_hz;
909
910 return 5;
911 }
912
913 static int simple_dvb_set_params(struct dvb_frontend *fe)
914 {
915 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
916 u32 delsys = c->delivery_system;
917 u32 bw = c->bandwidth_hz;
918 u32 freq = c->frequency;
919 struct tuner_simple_priv *priv = fe->tuner_priv;
920 u32 frequency;
921 u32 prev_freq, prev_bw;
922 int ret;
923 u8 buf[5];
924
925 if (priv->i2c_props.adap == NULL)
926 return -EINVAL;
927
928 prev_freq = priv->frequency;
929 prev_bw = priv->bandwidth;
930
931 frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw);
932 if (frequency == 0)
933 return -EINVAL;
934
935 buf[0] = priv->i2c_props.addr;
936
937 priv->frequency = frequency;
938 priv->bandwidth = bw;
939
940 /* put analog demod in standby when tuning digital */
941 if (fe->ops.analog_ops.standby)
942 fe->ops.analog_ops.standby(fe);
943
944 if (fe->ops.i2c_gate_ctrl)
945 fe->ops.i2c_gate_ctrl(fe, 1);
946
947 /* buf[0] contains the i2c address, but *
948 * we already have it in i2c_props.addr */
949 ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
950 if (ret != 4)
951 goto fail;
952
953 return 0;
954 fail:
955 /* calc_regs sets frequency and bandwidth. if we failed, unset them */
956 priv->frequency = prev_freq;
957 priv->bandwidth = prev_bw;
958
959 return ret;
960 }
961
962 static int simple_init(struct dvb_frontend *fe)
963 {
964 struct tuner_simple_priv *priv = fe->tuner_priv;
965
966 if (priv->i2c_props.adap == NULL)
967 return -EINVAL;
968
969 if (priv->tun->initdata) {
970 int ret;
971
972 if (fe->ops.i2c_gate_ctrl)
973 fe->ops.i2c_gate_ctrl(fe, 1);
974
975 ret = tuner_i2c_xfer_send(&priv->i2c_props,
976 priv->tun->initdata + 1,
977 priv->tun->initdata[0]);
978 if (ret != priv->tun->initdata[0])
979 return ret;
980 }
981
982 return 0;
983 }
984
985 static int simple_sleep(struct dvb_frontend *fe)
986 {
987 struct tuner_simple_priv *priv = fe->tuner_priv;
988
989 if (priv->i2c_props.adap == NULL)
990 return -EINVAL;
991
992 if (priv->tun->sleepdata) {
993 int ret;
994
995 if (fe->ops.i2c_gate_ctrl)
996 fe->ops.i2c_gate_ctrl(fe, 1);
997
998 ret = tuner_i2c_xfer_send(&priv->i2c_props,
999 priv->tun->sleepdata + 1,
1000 priv->tun->sleepdata[0]);
1001 if (ret != priv->tun->sleepdata[0])
1002 return ret;
1003 }
1004
1005 return 0;
1006 }
1007
1008 static int simple_release(struct dvb_frontend *fe)
1009 {
1010 struct tuner_simple_priv *priv = fe->tuner_priv;
1011
1012 mutex_lock(&tuner_simple_list_mutex);
1013
1014 if (priv)
1015 hybrid_tuner_release_state(priv);
1016
1017 mutex_unlock(&tuner_simple_list_mutex);
1018
1019 fe->tuner_priv = NULL;
1020
1021 return 0;
1022 }
1023
1024 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1025 {
1026 struct tuner_simple_priv *priv = fe->tuner_priv;
1027 *frequency = priv->frequency;
1028 return 0;
1029 }
1030
1031 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1032 {
1033 struct tuner_simple_priv *priv = fe->tuner_priv;
1034 *bandwidth = priv->bandwidth;
1035 return 0;
1036 }
1037
1038 static struct dvb_tuner_ops simple_tuner_ops = {
1039 .init = simple_init,
1040 .sleep = simple_sleep,
1041 .set_analog_params = simple_set_params,
1042 .set_params = simple_dvb_set_params,
1043 .calc_regs = simple_dvb_calc_regs,
1044 .release = simple_release,
1045 .get_frequency = simple_get_frequency,
1046 .get_bandwidth = simple_get_bandwidth,
1047 .get_status = simple_get_status,
1048 .get_rf_strength = simple_get_rf_strength,
1049 };
1050
1051 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1052 struct i2c_adapter *i2c_adap,
1053 u8 i2c_addr,
1054 unsigned int type)
1055 {
1056 struct tuner_simple_priv *priv = NULL;
1057 int instance;
1058
1059 if (type >= tuner_count) {
1060 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1061 __func__, type, tuner_count-1);
1062 return NULL;
1063 }
1064
1065 /* If i2c_adap is set, check that the tuner is at the correct address.
1066 * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1067 * by the digital demod via calc_regs.
1068 */
1069 if (i2c_adap != NULL) {
1070 u8 b[1];
1071 struct i2c_msg msg = {
1072 .addr = i2c_addr, .flags = I2C_M_RD,
1073 .buf = b, .len = 1,
1074 };
1075
1076 if (fe->ops.i2c_gate_ctrl)
1077 fe->ops.i2c_gate_ctrl(fe, 1);
1078
1079 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1080 printk(KERN_WARNING "tuner-simple %d-%04x: "
1081 "unable to probe %s, proceeding anyway.",
1082 i2c_adapter_id(i2c_adap), i2c_addr,
1083 tuners[type].name);
1084
1085 if (fe->ops.i2c_gate_ctrl)
1086 fe->ops.i2c_gate_ctrl(fe, 0);
1087 }
1088
1089 mutex_lock(&tuner_simple_list_mutex);
1090
1091 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1092 hybrid_tuner_instance_list,
1093 i2c_adap, i2c_addr,
1094 "tuner-simple");
1095 switch (instance) {
1096 case 0:
1097 mutex_unlock(&tuner_simple_list_mutex);
1098 return NULL;
1099 case 1:
1100 fe->tuner_priv = priv;
1101
1102 priv->type = type;
1103 priv->tun = &tuners[type];
1104 priv->nr = simple_devcount++;
1105 break;
1106 default:
1107 fe->tuner_priv = priv;
1108 break;
1109 }
1110
1111 mutex_unlock(&tuner_simple_list_mutex);
1112
1113 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1114 sizeof(struct dvb_tuner_ops));
1115
1116 if (type != priv->type)
1117 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1118 type, priv->type, priv->tun->name);
1119 else
1120 tuner_info("type set to %d (%s)\n",
1121 priv->type, priv->tun->name);
1122
1123 if ((debug) || ((atv_input[priv->nr] > 0) ||
1124 (dtv_input[priv->nr] > 0))) {
1125 if (0 == atv_input[priv->nr])
1126 tuner_info("tuner %d atv rf input will be "
1127 "autoselected\n", priv->nr);
1128 else
1129 tuner_info("tuner %d atv rf input will be "
1130 "set to input %d (insmod option)\n",
1131 priv->nr, atv_input[priv->nr]);
1132 if (0 == dtv_input[priv->nr])
1133 tuner_info("tuner %d dtv rf input will be "
1134 "autoselected\n", priv->nr);
1135 else
1136 tuner_info("tuner %d dtv rf input will be "
1137 "set to input %d (insmod option)\n",
1138 priv->nr, dtv_input[priv->nr]);
1139 }
1140
1141 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1142 sizeof(fe->ops.tuner_ops.info.name));
1143
1144 return fe;
1145 }
1146 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1147
1148 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1149 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1150 MODULE_LICENSE("GPL");
1151
1152 /*
1153 * Overrides for Emacs so that we follow Linus's tabbing style.
1154 * ---------------------------------------------------------------------------
1155 * Local variables:
1156 * c-basic-offset: 8
1157 * End:
1158 */
Linux with added FPC-III support