2 * i2c tv tuner chip device driver
3 * controls all those simple 4-control-bytes style tuners.
5 * This "tuner-simple" module was split apart from the original "tuner" module.
7 #include <linux/delay.h>
9 #include <linux/videodev.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"
17 module_param(debug, int, 0644);
18 MODULE_PARM_DESC(debug, "enable verbose debug messages");
20 #define PREFIX "tuner-simple"
23 module_param(offset, int, 0664);
24 MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
26 /* ---------------------------------------------------------------------- */
28 /* tv standard selection for Temic 4046 FM5
29 this value takes the low bits of control byte 2
30 from datasheet Rev.01, Feb.00
32 picture IF 38.9 38.9 38.9 33.95 38.9
33 sound 1 33.4 32.9 32.4 40.45 32.4
35 NICAM 33.05 32.348 33.05 33.05
37 #define TEMIC_SET_PAL_I 0x05
38 #define TEMIC_SET_PAL_DK 0x09
39 #define TEMIC_SET_PAL_L 0x0a /* SECAM ? */
40 #define TEMIC_SET_PAL_L2 0x0b /* change IF ! */
41 #define TEMIC_SET_PAL_BG 0x0c
43 /* tv tuner system standard selection for Philips FQ1216ME
44 this value takes the low bits of control byte 2
45 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
47 picture carrier 38.90 38.90 38.90 38.90 33.95
48 colour 34.47 34.47 34.47 34.47 38.38
49 sound 1 33.40 32.40 32.90 32.40 40.45
51 NICAM 33.05 33.05 32.35 33.05 39.80
53 #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
54 #define PHILIPS_SET_PAL_BGDK 0x09
55 #define PHILIPS_SET_PAL_L2 0x0a
56 #define PHILIPS_SET_PAL_L 0x0b
58 /* system switching for Philips FI1216MF MK2
59 from datasheet "1996 Jul 09",
61 picture carrier 38.90 38.90 33.95
62 colour 34.47 34.37 38.38
63 sound 1 33.40 32.40 40.45
65 NICAM 33.05 33.05 39.80
67 #define PHILIPS_MF_SET_STD_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
68 #define PHILIPS_MF_SET_STD_L 0x03 /* Used on Secam France */
69 #define PHILIPS_MF_SET_STD_LC 0x02 /* Used on SECAM L' */
73 #define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
74 #define TUNER_RATIO_SELECT_50 0x00
75 #define TUNER_RATIO_SELECT_32 0x02
76 #define TUNER_RATIO_SELECT_166 0x04
77 #define TUNER_RATIO_SELECT_62 0x06
79 #define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
83 #define TUNER_POR 0x80
85 #define TUNER_MODE 0x38
86 #define TUNER_AFC 0x07
87 #define TUNER_SIGNAL 0x07
88 #define TUNER_STEREO 0x10
90 #define TUNER_PLL_LOCKED 0x40
91 #define TUNER_STEREO_MK3 0x04
93 struct tuner_simple_priv {
95 struct tuner_i2c_props i2c_props;
98 struct tunertype *tun;
103 /* ---------------------------------------------------------------------- */
105 static int tuner_read_status(struct dvb_frontend *fe)
107 struct tuner_simple_priv *priv = fe->tuner_priv;
110 if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
116 static inline int tuner_signal(const int status)
118 return (status & TUNER_SIGNAL) << 13;
121 static inline int tuner_stereo(const int type, const int status)
124 case TUNER_PHILIPS_FM1216ME_MK3:
125 case TUNER_PHILIPS_FM1236_MK3:
126 case TUNER_PHILIPS_FM1256_IH3:
127 case TUNER_LG_NTSC_TAPE:
128 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
130 return status & TUNER_STEREO;
134 static inline int tuner_islocked(const int status)
136 return (status & TUNER_FL);
139 static inline int tuner_afcstatus(const int status)
141 return (status & TUNER_AFC) - 2;
145 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
147 struct tuner_simple_priv *priv = fe->tuner_priv;
148 int tuner_status = tuner_read_status(fe);
152 if (tuner_islocked(tuner_status))
153 *status = TUNER_STATUS_LOCKED;
154 if (tuner_stereo(priv->type, tuner_status))
155 *status |= TUNER_STATUS_STEREO;
157 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
162 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
164 struct tuner_simple_priv *priv = fe->tuner_priv;
165 int signal = tuner_signal(tuner_read_status(fe));
169 tuner_dbg("Signal strength: %d\n", signal);
174 /* ---------------------------------------------------------------------- */
176 static inline char *tuner_param_name(enum param_type type)
181 case TUNER_PARAM_TYPE_RADIO:
184 case TUNER_PARAM_TYPE_PAL:
187 case TUNER_PARAM_TYPE_SECAM:
190 case TUNER_PARAM_TYPE_NTSC:
200 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
201 enum param_type desired_type)
203 struct tuner_simple_priv *priv = fe->tuner_priv;
204 struct tunertype *tun = priv->tun;
207 for (i = 0; i < tun->count; i++)
208 if (desired_type == tun->params[i].type)
211 /* use default tuner params if desired_type not available */
212 if (i == tun->count) {
213 tuner_dbg("desired params (%s) undefined for tuner %d\n",
214 tuner_param_name(desired_type), priv->type);
218 tuner_dbg("using tuner params #%d (%s)\n", i,
219 tuner_param_name(tun->params[i].type));
221 return &tun->params[i];
224 static int simple_config_lookup(struct dvb_frontend *fe,
225 struct tuner_params *t_params,
226 int *frequency, u8 *config, u8 *cb)
228 struct tuner_simple_priv *priv = fe->tuner_priv;
231 for (i = 0; i < t_params->count; i++) {
232 if (*frequency > t_params->ranges[i].limit)
236 if (i == t_params->count) {
237 tuner_dbg("frequency out of range (%d > %d)\n",
238 *frequency, t_params->ranges[i - 1].limit);
239 *frequency = t_params->ranges[--i].limit;
241 *config = t_params->ranges[i].config;
242 *cb = t_params->ranges[i].cb;
244 tuner_dbg("freq = %d.%02d (%d), range = %d, "
245 "config = 0x%02x, cb = 0x%02x\n",
246 *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
252 /* ---------------------------------------------------------------------- */
254 static int simple_set_tv_freq(struct dvb_frontend *fe,
255 struct analog_parameters *params)
257 struct tuner_simple_priv *priv = fe->tuner_priv;
258 u8 config, cb, tuneraddr;
260 struct tunertype *tun;
263 enum param_type desired_type;
264 struct tuner_params *t_params;
268 /* IFPCoff = Video Intermediate Frequency - Vif:
269 940 =16*58.75 NTSC/J (Japan)
270 732 =16*45.75 M/N STD
271 704 =16*44 ATSC (at DVB code)
273 622.4=16*38.90 B/G D/K I, L STD
274 592 =16*37.00 D China
275 590 =16.36.875 B Australia
276 543.2=16*33.95 L' STD
277 171.2=16*10.70 FM Radio (at set_radio_freq)
280 if (params->std == V4L2_STD_NTSC_M_JP) {
282 desired_type = TUNER_PARAM_TYPE_NTSC;
283 } else if ((params->std & V4L2_STD_MN) &&
284 !(params->std & ~V4L2_STD_MN)) {
286 desired_type = TUNER_PARAM_TYPE_NTSC;
287 } else if (params->std == V4L2_STD_SECAM_LC) {
289 desired_type = TUNER_PARAM_TYPE_SECAM;
292 desired_type = TUNER_PARAM_TYPE_PAL;
295 t_params = simple_tuner_params(fe, desired_type);
297 i = simple_config_lookup(fe, t_params, ¶ms->frequency,
300 div = params->frequency + IFPCoff + offset;
302 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
303 "Offset=%d.%02d MHz, div=%0d\n",
304 params->frequency / 16, params->frequency % 16 * 100 / 16,
305 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
306 offset / 16, offset % 16 * 100 / 16, div);
308 /* tv norm specific stuff for multi-norm tuners */
309 switch (priv->type) {
310 case TUNER_PHILIPS_SECAM: /* FI1216MF */
311 /* 0x01 -> ??? no change ??? */
312 /* 0x02 -> PAL BDGHI / SECAM L */
313 /* 0x04 -> ??? PAL others / SECAM others ??? */
315 if (params->std & V4L2_STD_SECAM_L)
316 /* also valid for V4L2_STD_SECAM */
317 cb |= PHILIPS_MF_SET_STD_L;
318 else if (params->std & V4L2_STD_SECAM_LC)
319 cb |= PHILIPS_MF_SET_STD_LC;
320 else /* V4L2_STD_B|V4L2_STD_GH */
321 cb |= PHILIPS_MF_SET_STD_BG;
324 case TUNER_TEMIC_4046FM5:
327 if (params->std & V4L2_STD_PAL_BG) {
328 cb |= TEMIC_SET_PAL_BG;
330 } else if (params->std & V4L2_STD_PAL_I) {
331 cb |= TEMIC_SET_PAL_I;
333 } else if (params->std & V4L2_STD_PAL_DK) {
334 cb |= TEMIC_SET_PAL_DK;
336 } else if (params->std & V4L2_STD_SECAM_L) {
337 cb |= TEMIC_SET_PAL_L;
342 case TUNER_PHILIPS_FQ1216ME:
345 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
346 cb |= PHILIPS_SET_PAL_BGDK;
348 } else if (params->std & V4L2_STD_PAL_I) {
349 cb |= PHILIPS_SET_PAL_I;
351 } else if (params->std & V4L2_STD_SECAM_L) {
352 cb |= PHILIPS_SET_PAL_L;
357 case TUNER_PHILIPS_ATSC:
358 /* 0x00 -> ATSC antenna input 1 */
359 /* 0x01 -> ATSC antenna input 2 */
360 /* 0x02 -> NTSC antenna input 1 */
361 /* 0x03 -> NTSC antenna input 2 */
363 if (!(params->std & V4L2_STD_ATSC))
368 case TUNER_MICROTUNE_4042FI5:
369 /* Set the charge pump for fast tuning */
370 config |= TUNER_CHARGE_PUMP;
373 case TUNER_PHILIPS_TUV1236D:
374 /* 0x40 -> ATSC antenna input 1 */
375 /* 0x48 -> ATSC antenna input 2 */
376 /* 0x00 -> NTSC antenna input 1 */
377 /* 0x08 -> NTSC antenna input 2 */
383 if (params->std & V4L2_STD_ATSC) {
387 /* set to the correct mode (analog or digital) */
388 tuneraddr = priv->i2c_props.addr;
389 priv->i2c_props.addr = 0x0a;
390 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[0], 2);
392 tuner_warn("i2c i/o error: rc == %d "
393 "(should be 2)\n", rc);
394 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[2], 2);
396 tuner_warn("i2c i/o error: rc == %d "
397 "(should be 2)\n", rc);
398 priv->i2c_props.addr = tuneraddr;
403 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
406 buffer[2] = (div>>8) & 0x7f;
407 buffer[3] = div & 0xff;
409 buffer[0] = (div>>8) & 0x7f;
410 buffer[1] = div & 0xff;
414 priv->last_div = div;
415 if (t_params->has_tda9887) {
416 struct v4l2_priv_tun_config tda9887_cfg;
418 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
419 V4L2_STD_SECAM_LC)) &&
420 !(params->std & ~(V4L2_STD_SECAM_L |
423 tda9887_cfg.tuner = TUNER_TDA9887;
424 tda9887_cfg.priv = &config;
426 if (params->std == V4L2_STD_SECAM_LC) {
427 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
428 config |= TDA9887_PORT1_ACTIVE;
429 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
430 config |= TDA9887_PORT2_ACTIVE;
432 if (t_params->port1_active)
433 config |= TDA9887_PORT1_ACTIVE;
434 if (t_params->port2_active)
435 config |= TDA9887_PORT2_ACTIVE;
437 if (t_params->intercarrier_mode)
438 config |= TDA9887_INTERCARRIER;
440 if (i == 0 && t_params->default_top_secam_low)
441 config |= TDA9887_TOP(t_params->default_top_secam_low);
442 else if (i == 1 && t_params->default_top_secam_mid)
443 config |= TDA9887_TOP(t_params->default_top_secam_mid);
444 else if (t_params->default_top_secam_high)
445 config |= TDA9887_TOP(t_params->default_top_secam_high);
447 if (i == 0 && t_params->default_top_low)
448 config |= TDA9887_TOP(t_params->default_top_low);
449 else if (i == 1 && t_params->default_top_mid)
450 config |= TDA9887_TOP(t_params->default_top_mid);
451 else if (t_params->default_top_high)
452 config |= TDA9887_TOP(t_params->default_top_high);
454 if (t_params->default_pll_gating_18)
455 config |= TDA9887_GATING_18;
456 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
459 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
460 buffer[0], buffer[1], buffer[2], buffer[3]);
462 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
464 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
466 switch (priv->type) {
467 case TUNER_LG_TDVS_H06XF:
468 /* Set the Auxiliary Byte. */
469 buffer[0] = buffer[2];
473 tuner_dbg("tv 0x%02x 0x%02x\n", buffer[0], buffer[1]);
475 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
477 tuner_warn("i2c i/o error: rc == %d "
478 "(should be 2)\n", rc);
480 case TUNER_MICROTUNE_4042FI5:
482 /* FIXME - this may also work for other tuners */
483 unsigned long timeout = jiffies + msecs_to_jiffies(1);
486 /* Wait until the PLL locks */
488 if (time_after(jiffies, timeout))
490 rc = tuner_i2c_xfer_recv(&priv->i2c_props,
493 tuner_warn("i2c i/o read error: rc == %d "
494 "(should be 1)\n", rc);
497 if (status_byte & TUNER_PLL_LOCKED)
502 /* Set the charge pump for optimized phase noise figure */
503 config &= ~TUNER_CHARGE_PUMP;
504 buffer[0] = (div>>8) & 0x7f;
505 buffer[1] = div & 0xff;
508 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
509 buffer[0], buffer[1], buffer[2], buffer[3]);
511 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
513 tuner_warn("i2c i/o error: rc == %d "
514 "(should be 4)\n", rc);
521 static int simple_set_radio_freq(struct dvb_frontend *fe,
522 struct analog_parameters *params)
524 struct tunertype *tun;
525 struct tuner_simple_priv *priv = fe->tuner_priv;
529 struct tuner_params *t_params;
530 unsigned int freq = params->frequency;
534 for (j = tun->count-1; j > 0; j--)
535 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
537 /* default t_params (j=0) will be used if desired type wasn't found */
538 t_params = &tun->params[j];
540 /* Select Radio 1st IF used */
541 switch (t_params->radio_if) {
542 case 0: /* 10.7 MHz */
543 freq += (unsigned int)(10.7*16000);
545 case 1: /* 33.3 MHz */
546 freq += (unsigned int)(33.3*16000);
548 case 2: /* 41.3 MHz */
549 freq += (unsigned int)(41.3*16000);
552 tuner_warn("Unsupported radio_if value %d\n",
557 /* Bandswitch byte */
558 switch (priv->type) {
559 case TUNER_TENA_9533_DI:
560 case TUNER_YMEC_TVF_5533MF:
561 tuner_dbg("This tuner doesn't have FM. "
562 "Most cards have a TEA5767 for FM\n");
564 case TUNER_PHILIPS_FM1216ME_MK3:
565 case TUNER_PHILIPS_FM1236_MK3:
566 case TUNER_PHILIPS_FMD1216ME_MK3:
567 case TUNER_LG_NTSC_TAPE:
568 case TUNER_PHILIPS_FM1256_IH3:
571 case TUNER_TNF_5335MF:
574 case TUNER_LG_PAL_FM:
577 case TUNER_THOMSON_DTT761X:
580 case TUNER_MICROTUNE_4049FM5:
586 buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
587 TUNER_RATIO_SELECT_50; /* 50 kHz step */
589 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
590 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
592 div = (freq + 400) / 800;
594 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
595 buffer[0] = buffer[2];
596 buffer[1] = buffer[3];
597 buffer[2] = (div>>8) & 0x7f;
598 buffer[3] = div & 0xff;
600 buffer[0] = (div>>8) & 0x7f;
601 buffer[1] = div & 0xff;
604 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
605 buffer[0], buffer[1], buffer[2], buffer[3]);
606 priv->last_div = div;
608 if (t_params->has_tda9887) {
610 struct v4l2_priv_tun_config tda9887_cfg;
612 tda9887_cfg.tuner = TUNER_TDA9887;
613 tda9887_cfg.priv = &config;
615 if (t_params->port1_active &&
616 !t_params->port1_fm_high_sensitivity)
617 config |= TDA9887_PORT1_ACTIVE;
618 if (t_params->port2_active &&
619 !t_params->port2_fm_high_sensitivity)
620 config |= TDA9887_PORT2_ACTIVE;
621 if (t_params->intercarrier_mode)
622 config |= TDA9887_INTERCARRIER;
623 /* if (t_params->port1_set_for_fm_mono)
624 config &= ~TDA9887_PORT1_ACTIVE;*/
625 if (t_params->fm_gain_normal)
626 config |= TDA9887_GAIN_NORMAL;
627 if (t_params->radio_if == 2)
628 config |= TDA9887_RIF_41_3;
629 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
632 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
634 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
639 static int simple_set_params(struct dvb_frontend *fe,
640 struct analog_parameters *params)
642 struct tuner_simple_priv *priv = fe->tuner_priv;
645 switch (params->mode) {
646 case V4L2_TUNER_RADIO:
647 ret = simple_set_radio_freq(fe, params);
648 priv->frequency = params->frequency * 125 / 2;
650 case V4L2_TUNER_ANALOG_TV:
651 case V4L2_TUNER_DIGITAL_TV:
652 ret = simple_set_tv_freq(fe, params);
653 priv->frequency = params->frequency * 62500;
661 static int simple_release(struct dvb_frontend *fe)
663 kfree(fe->tuner_priv);
664 fe->tuner_priv = NULL;
669 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
671 struct tuner_simple_priv *priv = fe->tuner_priv;
672 *frequency = priv->frequency;
676 static struct dvb_tuner_ops simple_tuner_ops = {
677 .set_analog_params = simple_set_params,
678 .release = simple_release,
679 .get_frequency = simple_get_frequency,
680 .get_status = simple_get_status,
681 .get_rf_strength = simple_get_rf_strength,
684 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
685 struct i2c_adapter *i2c_adap,
689 struct tuner_simple_priv *priv = NULL;
691 if (type >= tuner_count) {
692 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
693 __FUNCTION__, type, tuner_count-1);
697 priv = kzalloc(sizeof(struct tuner_simple_priv), GFP_KERNEL);
700 fe->tuner_priv = priv;
702 priv->i2c_props.addr = i2c_addr;
703 priv->i2c_props.adap = i2c_adap;
705 priv->tun = &tuners[type];
707 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
708 sizeof(struct dvb_tuner_ops));
710 tuner_info("type set to %d (%s)\n", priv->type, priv->tun->name);
712 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
713 sizeof(fe->ops.tuner_ops.info.name));
717 EXPORT_SYMBOL_GPL(simple_tuner_attach);
719 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
720 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
721 MODULE_LICENSE("GPL");
724 * Overrides for Emacs so that we follow Linus's tabbing style.
725 * ---------------------------------------------------------------------------