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/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"
17 module_param(debug, int, 0644);
18 MODULE_PARM_DESC(debug, "enable verbose debug messages");
20 #define TUNER_SIMPLE_MAX 64
21 static unsigned int simple_devcount;
24 module_param(offset, int, 0664);
25 MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
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");
36 /* ---------------------------------------------------------------------- */
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
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
45 NICAM 33.05 32.348 33.05 33.05
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
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")
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
61 NICAM 33.05 33.05 32.35 33.05 39.80
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
68 /* system switching for Philips FI1216MF MK2
69 from datasheet "1996 Jul 09",
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
75 NICAM 33.05 33.05 39.80
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' */
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
89 #define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
93 #define TUNER_POR 0x80
95 #define TUNER_MODE 0x38
96 #define TUNER_AFC 0x07
97 #define TUNER_SIGNAL 0x07
98 #define TUNER_STEREO 0x10
100 #define TUNER_PLL_LOCKED 0x40
101 #define TUNER_STEREO_MK3 0x04
103 static DEFINE_MUTEX(tuner_simple_list_mutex);
104 static LIST_HEAD(hybrid_tuner_instance_list);
106 struct tuner_simple_priv {
110 struct tuner_i2c_props i2c_props;
111 struct list_head hybrid_tuner_instance_list;
114 struct tunertype *tun;
120 /* ---------------------------------------------------------------------- */
122 static int tuner_read_status(struct dvb_frontend *fe)
124 struct tuner_simple_priv *priv = fe->tuner_priv;
127 if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
133 static inline int tuner_signal(const int status)
135 return (status & TUNER_SIGNAL) << 13;
138 static inline int tuner_stereo(const int type, const int status)
141 case TUNER_PHILIPS_FM1216ME_MK3:
142 case TUNER_PHILIPS_FM1236_MK3:
143 case TUNER_PHILIPS_FM1256_IH3:
144 case TUNER_LG_NTSC_TAPE:
145 case TUNER_TCL_MF02GIP_5N:
146 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
147 case TUNER_PHILIPS_FM1216MK5:
148 return status | TUNER_STEREO;
150 return status & TUNER_STEREO;
154 static inline int tuner_islocked(const int status)
156 return (status & TUNER_FL);
159 static inline int tuner_afcstatus(const int status)
161 return (status & TUNER_AFC) - 2;
165 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
167 struct tuner_simple_priv *priv = fe->tuner_priv;
170 if (priv->i2c_props.adap == NULL)
173 tuner_status = tuner_read_status(fe);
177 if (tuner_islocked(tuner_status))
178 *status = TUNER_STATUS_LOCKED;
179 if (tuner_stereo(priv->type, tuner_status))
180 *status |= TUNER_STATUS_STEREO;
182 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
187 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
189 struct tuner_simple_priv *priv = fe->tuner_priv;
192 if (priv->i2c_props.adap == NULL)
195 signal = tuner_signal(tuner_read_status(fe));
199 tuner_dbg("Signal strength: %d\n", signal);
204 /* ---------------------------------------------------------------------- */
206 static inline char *tuner_param_name(enum param_type type)
211 case TUNER_PARAM_TYPE_RADIO:
214 case TUNER_PARAM_TYPE_PAL:
217 case TUNER_PARAM_TYPE_SECAM:
220 case TUNER_PARAM_TYPE_NTSC:
223 case TUNER_PARAM_TYPE_DIGITAL:
233 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
234 enum param_type desired_type)
236 struct tuner_simple_priv *priv = fe->tuner_priv;
237 struct tunertype *tun = priv->tun;
240 for (i = 0; i < tun->count; i++)
241 if (desired_type == tun->params[i].type)
244 /* use default tuner params if desired_type not available */
245 if (i == tun->count) {
246 tuner_dbg("desired params (%s) undefined for tuner %d\n",
247 tuner_param_name(desired_type), priv->type);
251 tuner_dbg("using tuner params #%d (%s)\n", i,
252 tuner_param_name(tun->params[i].type));
254 return &tun->params[i];
257 static int simple_config_lookup(struct dvb_frontend *fe,
258 struct tuner_params *t_params,
259 unsigned *frequency, u8 *config, u8 *cb)
261 struct tuner_simple_priv *priv = fe->tuner_priv;
264 for (i = 0; i < t_params->count; i++) {
265 if (*frequency > t_params->ranges[i].limit)
269 if (i == t_params->count) {
270 tuner_dbg("frequency out of range (%d > %d)\n",
271 *frequency, t_params->ranges[i - 1].limit);
272 *frequency = t_params->ranges[--i].limit;
274 *config = t_params->ranges[i].config;
275 *cb = t_params->ranges[i].cb;
277 tuner_dbg("freq = %d.%02d (%d), range = %d, "
278 "config = 0x%02x, cb = 0x%02x\n",
279 *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
285 /* ---------------------------------------------------------------------- */
287 static void simple_set_rf_input(struct dvb_frontend *fe,
288 u8 *config, u8 *cb, unsigned int rf)
290 struct tuner_simple_priv *priv = fe->tuner_priv;
292 switch (priv->type) {
293 case TUNER_PHILIPS_TUV1236D:
303 case TUNER_PHILIPS_FCV1236D:
318 static int simple_std_setup(struct dvb_frontend *fe,
319 struct analog_parameters *params,
322 struct tuner_simple_priv *priv = fe->tuner_priv;
325 /* tv norm specific stuff for multi-norm tuners */
326 switch (priv->type) {
327 case TUNER_PHILIPS_SECAM: /* FI1216MF */
328 /* 0x01 -> ??? no change ??? */
329 /* 0x02 -> PAL BDGHI / SECAM L */
330 /* 0x04 -> ??? PAL others / SECAM others ??? */
332 if (params->std & V4L2_STD_SECAM_L)
333 /* also valid for V4L2_STD_SECAM */
334 *cb |= PHILIPS_MF_SET_STD_L;
335 else if (params->std & V4L2_STD_SECAM_LC)
336 *cb |= PHILIPS_MF_SET_STD_LC;
337 else /* V4L2_STD_B|V4L2_STD_GH */
338 *cb |= PHILIPS_MF_SET_STD_BG;
341 case TUNER_TEMIC_4046FM5:
344 if (params->std & V4L2_STD_PAL_BG) {
345 *cb |= TEMIC_SET_PAL_BG;
347 } else if (params->std & V4L2_STD_PAL_I) {
348 *cb |= TEMIC_SET_PAL_I;
350 } else if (params->std & V4L2_STD_PAL_DK) {
351 *cb |= TEMIC_SET_PAL_DK;
353 } else if (params->std & V4L2_STD_SECAM_L) {
354 *cb |= TEMIC_SET_PAL_L;
359 case TUNER_PHILIPS_FQ1216ME:
362 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
363 *cb |= PHILIPS_SET_PAL_BGDK;
365 } else if (params->std & V4L2_STD_PAL_I) {
366 *cb |= PHILIPS_SET_PAL_I;
368 } else if (params->std & V4L2_STD_SECAM_L) {
369 *cb |= PHILIPS_SET_PAL_L;
374 case TUNER_PHILIPS_FCV1236D:
375 /* 0x00 -> ATSC antenna input 1 */
376 /* 0x01 -> ATSC antenna input 2 */
377 /* 0x02 -> NTSC antenna input 1 */
378 /* 0x03 -> NTSC antenna input 2 */
380 if (!(params->std & V4L2_STD_ATSC))
384 case TUNER_MICROTUNE_4042FI5:
385 /* Set the charge pump for fast tuning */
386 *config |= TUNER_CHARGE_PUMP;
389 case TUNER_PHILIPS_TUV1236D:
391 struct tuner_i2c_props i2c = priv->i2c_props;
392 /* 0x40 -> ATSC antenna input 1 */
393 /* 0x48 -> ATSC antenna input 2 */
394 /* 0x00 -> NTSC antenna input 1 */
395 /* 0x08 -> NTSC antenna input 2 */
396 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
398 if (params->std & V4L2_STD_ATSC) {
402 /* set to the correct mode (analog or digital) */
404 rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2);
406 tuner_warn("i2c i/o error: rc == %d "
407 "(should be 2)\n", rc);
408 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
410 tuner_warn("i2c i/o error: rc == %d "
411 "(should be 2)\n", rc);
415 if (atv_input[priv->nr])
416 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
421 static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux)
423 struct tuner_simple_priv *priv = fe->tuner_priv;
427 buffer[0] = (config & ~0x38) | 0x18;
430 tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]);
432 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
434 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc);
436 return rc == 2 ? 0 : rc;
439 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
440 u16 div, u8 config, u8 cb)
442 struct tuner_simple_priv *priv = fe->tuner_priv;
445 switch (priv->type) {
446 case TUNER_LG_TDVS_H06XF:
447 simple_set_aux_byte(fe, config, 0x20);
449 case TUNER_PHILIPS_FQ1216LME_MK3:
450 simple_set_aux_byte(fe, config, 0x60); /* External AGC */
452 case TUNER_MICROTUNE_4042FI5:
454 /* FIXME - this may also work for other tuners */
455 unsigned long timeout = jiffies + msecs_to_jiffies(1);
458 /* Wait until the PLL locks */
460 if (time_after(jiffies, timeout))
462 rc = tuner_i2c_xfer_recv(&priv->i2c_props,
465 tuner_warn("i2c i/o read error: rc == %d "
466 "(should be 1)\n", rc);
469 if (status_byte & TUNER_PLL_LOCKED)
474 /* Set the charge pump for optimized phase noise figure */
475 config &= ~TUNER_CHARGE_PUMP;
476 buffer[0] = (div>>8) & 0x7f;
477 buffer[1] = div & 0xff;
480 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
481 buffer[0], buffer[1], buffer[2], buffer[3]);
483 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
485 tuner_warn("i2c i/o error: rc == %d "
486 "(should be 4)\n", rc);
494 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
496 struct tuner_simple_priv *priv = fe->tuner_priv;
498 switch (priv->type) {
499 case TUNER_TENA_9533_DI:
500 case TUNER_YMEC_TVF_5533MF:
501 tuner_dbg("This tuner doesn't have FM. "
502 "Most cards have a TEA5767 for FM\n");
504 case TUNER_PHILIPS_FM1216ME_MK3:
505 case TUNER_PHILIPS_FM1236_MK3:
506 case TUNER_PHILIPS_FMD1216ME_MK3:
507 case TUNER_PHILIPS_FMD1216MEX_MK3:
508 case TUNER_LG_NTSC_TAPE:
509 case TUNER_PHILIPS_FM1256_IH3:
510 case TUNER_TCL_MF02GIP_5N:
513 case TUNER_PHILIPS_FM1216MK5:
517 case TUNER_TNF_5335MF:
520 case TUNER_LG_PAL_FM:
523 case TUNER_THOMSON_DTT761X:
526 case TUNER_PHILIPS_FQ1216LME_MK3:
527 case TUNER_PHILIPS_FQ1236_MK5:
528 tuner_err("This tuner doesn't have FM\n");
529 /* Set the low band for sanity, since it covers 88-108 MHz */
532 case TUNER_MICROTUNE_4049FM5:
541 /* ---------------------------------------------------------------------- */
543 static int simple_set_tv_freq(struct dvb_frontend *fe,
544 struct analog_parameters *params)
546 struct tuner_simple_priv *priv = fe->tuner_priv;
549 struct tunertype *tun;
552 enum param_type desired_type;
553 struct tuner_params *t_params;
557 /* IFPCoff = Video Intermediate Frequency - Vif:
558 940 =16*58.75 NTSC/J (Japan)
559 732 =16*45.75 M/N STD
560 704 =16*44 ATSC (at DVB code)
562 622.4=16*38.90 B/G D/K I, L STD
563 592 =16*37.00 D China
564 590 =16.36.875 B Australia
565 543.2=16*33.95 L' STD
566 171.2=16*10.70 FM Radio (at set_radio_freq)
569 if (params->std == V4L2_STD_NTSC_M_JP) {
571 desired_type = TUNER_PARAM_TYPE_NTSC;
572 } else if ((params->std & V4L2_STD_MN) &&
573 !(params->std & ~V4L2_STD_MN)) {
575 desired_type = TUNER_PARAM_TYPE_NTSC;
576 } else if (params->std == V4L2_STD_SECAM_LC) {
578 desired_type = TUNER_PARAM_TYPE_SECAM;
581 desired_type = TUNER_PARAM_TYPE_PAL;
584 t_params = simple_tuner_params(fe, desired_type);
586 i = simple_config_lookup(fe, t_params, ¶ms->frequency,
589 div = params->frequency + IFPCoff + offset;
591 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
592 "Offset=%d.%02d MHz, div=%0d\n",
593 params->frequency / 16, params->frequency % 16 * 100 / 16,
594 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
595 offset / 16, offset % 16 * 100 / 16, div);
597 /* tv norm specific stuff for multi-norm tuners */
598 simple_std_setup(fe, params, &config, &cb);
600 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
603 buffer[2] = (div>>8) & 0x7f;
604 buffer[3] = div & 0xff;
606 buffer[0] = (div>>8) & 0x7f;
607 buffer[1] = div & 0xff;
611 priv->last_div = div;
612 if (t_params->has_tda9887) {
613 struct v4l2_priv_tun_config tda9887_cfg;
615 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
616 V4L2_STD_SECAM_LC)) &&
617 !(params->std & ~(V4L2_STD_SECAM_L |
620 tda9887_cfg.tuner = TUNER_TDA9887;
621 tda9887_cfg.priv = &tda_config;
623 if (params->std == V4L2_STD_SECAM_LC) {
624 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
625 tda_config |= TDA9887_PORT1_ACTIVE;
626 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
627 tda_config |= TDA9887_PORT2_ACTIVE;
629 if (t_params->port1_active)
630 tda_config |= TDA9887_PORT1_ACTIVE;
631 if (t_params->port2_active)
632 tda_config |= TDA9887_PORT2_ACTIVE;
634 if (t_params->intercarrier_mode)
635 tda_config |= TDA9887_INTERCARRIER;
637 if (i == 0 && t_params->default_top_secam_low)
638 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
639 else if (i == 1 && t_params->default_top_secam_mid)
640 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
641 else if (t_params->default_top_secam_high)
642 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
644 if (i == 0 && t_params->default_top_low)
645 tda_config |= TDA9887_TOP(t_params->default_top_low);
646 else if (i == 1 && t_params->default_top_mid)
647 tda_config |= TDA9887_TOP(t_params->default_top_mid);
648 else if (t_params->default_top_high)
649 tda_config |= TDA9887_TOP(t_params->default_top_high);
651 if (t_params->default_pll_gating_18)
652 tda_config |= TDA9887_GATING_18;
653 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
656 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
657 buffer[0], buffer[1], buffer[2], buffer[3]);
659 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
661 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
663 simple_post_tune(fe, &buffer[0], div, config, cb);
668 static int simple_set_radio_freq(struct dvb_frontend *fe,
669 struct analog_parameters *params)
671 struct tunertype *tun;
672 struct tuner_simple_priv *priv = fe->tuner_priv;
676 struct tuner_params *t_params;
677 unsigned int freq = params->frequency;
681 for (j = tun->count-1; j > 0; j--)
682 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
684 /* default t_params (j=0) will be used if desired type wasn't found */
685 t_params = &tun->params[j];
687 /* Select Radio 1st IF used */
688 switch (t_params->radio_if) {
689 case 0: /* 10.7 MHz */
690 freq += (unsigned int)(10.7*16000);
692 case 1: /* 33.3 MHz */
693 freq += (unsigned int)(33.3*16000);
695 case 2: /* 41.3 MHz */
696 freq += (unsigned int)(41.3*16000);
699 tuner_warn("Unsupported radio_if value %d\n",
704 buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
705 TUNER_RATIO_SELECT_50; /* 50 kHz step */
707 /* Bandswitch byte */
708 simple_radio_bandswitch(fe, &buffer[0]);
710 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
711 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
713 div = (freq + 400) / 800;
715 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
716 buffer[0] = buffer[2];
717 buffer[1] = buffer[3];
718 buffer[2] = (div>>8) & 0x7f;
719 buffer[3] = div & 0xff;
721 buffer[0] = (div>>8) & 0x7f;
722 buffer[1] = div & 0xff;
725 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
726 buffer[0], buffer[1], buffer[2], buffer[3]);
727 priv->last_div = div;
729 if (t_params->has_tda9887) {
731 struct v4l2_priv_tun_config tda9887_cfg;
733 tda9887_cfg.tuner = TUNER_TDA9887;
734 tda9887_cfg.priv = &config;
736 if (t_params->port1_active &&
737 !t_params->port1_fm_high_sensitivity)
738 config |= TDA9887_PORT1_ACTIVE;
739 if (t_params->port2_active &&
740 !t_params->port2_fm_high_sensitivity)
741 config |= TDA9887_PORT2_ACTIVE;
742 if (t_params->intercarrier_mode)
743 config |= TDA9887_INTERCARRIER;
744 /* if (t_params->port1_set_for_fm_mono)
745 config &= ~TDA9887_PORT1_ACTIVE;*/
746 if (t_params->fm_gain_normal)
747 config |= TDA9887_GAIN_NORMAL;
748 if (t_params->radio_if == 2)
749 config |= TDA9887_RIF_41_3;
750 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
753 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
755 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
760 static int simple_set_params(struct dvb_frontend *fe,
761 struct analog_parameters *params)
763 struct tuner_simple_priv *priv = fe->tuner_priv;
766 if (priv->i2c_props.adap == NULL)
769 switch (params->mode) {
770 case V4L2_TUNER_RADIO:
771 ret = simple_set_radio_freq(fe, params);
772 priv->frequency = params->frequency * 125 / 2;
774 case V4L2_TUNER_ANALOG_TV:
775 case V4L2_TUNER_DIGITAL_TV:
776 ret = simple_set_tv_freq(fe, params);
777 priv->frequency = params->frequency * 62500;
785 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
786 const struct dvb_frontend_parameters *params)
788 struct tuner_simple_priv *priv = fe->tuner_priv;
790 switch (priv->type) {
791 case TUNER_PHILIPS_FMD1216ME_MK3:
792 case TUNER_PHILIPS_FMD1216MEX_MK3:
793 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
794 params->frequency >= 158870000)
797 case TUNER_PHILIPS_TD1316:
799 buf[3] |= (params->frequency < 161000000) ? 1 :
800 (params->frequency < 444000000) ? 2 : 4;
802 /* setup PLL filter */
803 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
806 case TUNER_PHILIPS_TUV1236D:
807 case TUNER_PHILIPS_FCV1236D:
811 if (dtv_input[priv->nr])
812 new_rf = dtv_input[priv->nr];
814 switch (params->u.vsb.modulation) {
824 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
832 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
833 const struct dvb_frontend_parameters *params)
835 /* This function returns the tuned frequency on success, 0 on error */
836 struct tuner_simple_priv *priv = fe->tuner_priv;
837 struct tunertype *tun = priv->tun;
838 static struct tuner_params *t_params;
842 unsigned frequency = params->frequency / 62500;
844 if (!tun->stepsize) {
845 /* tuner-core was loaded before the digital tuner was
846 * configured and somehow picked the wrong tuner type */
847 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
848 "without stepsize defined.\n",
849 priv->type, priv->tun->name);
850 return 0; /* failure */
853 t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
854 ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
856 return 0; /* failure */
858 div = ((frequency + t_params->iffreq) * 62500 + offset +
859 tun->stepsize/2) / tun->stepsize;
866 simple_set_dvb(fe, buf, params);
868 tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
869 tun->name, div, buf[0], buf[1], buf[2], buf[3]);
871 /* calculate the frequency we set it to */
872 return (div * tun->stepsize) - t_params->iffreq;
875 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
876 struct dvb_frontend_parameters *params,
877 u8 *buf, int buf_len)
879 struct tuner_simple_priv *priv = fe->tuner_priv;
885 frequency = simple_dvb_configure(fe, buf+1, params);
889 buf[0] = priv->i2c_props.addr;
891 priv->frequency = frequency;
892 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
893 params->u.ofdm.bandwidth : 0;
898 static int simple_dvb_set_params(struct dvb_frontend *fe,
899 struct dvb_frontend_parameters *params)
901 struct tuner_simple_priv *priv = fe->tuner_priv;
902 u32 prev_freq, prev_bw;
906 if (priv->i2c_props.adap == NULL)
909 prev_freq = priv->frequency;
910 prev_bw = priv->bandwidth;
912 ret = simple_dvb_calc_regs(fe, params, buf, 5);
916 /* put analog demod in standby when tuning digital */
917 if (fe->ops.analog_ops.standby)
918 fe->ops.analog_ops.standby(fe);
920 if (fe->ops.i2c_gate_ctrl)
921 fe->ops.i2c_gate_ctrl(fe, 1);
923 /* buf[0] contains the i2c address, but *
924 * we already have it in i2c_props.addr */
925 ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
931 /* calc_regs sets frequency and bandwidth. if we failed, unset them */
932 priv->frequency = prev_freq;
933 priv->bandwidth = prev_bw;
938 static int simple_init(struct dvb_frontend *fe)
940 struct tuner_simple_priv *priv = fe->tuner_priv;
942 if (priv->i2c_props.adap == NULL)
945 if (priv->tun->initdata) {
948 if (fe->ops.i2c_gate_ctrl)
949 fe->ops.i2c_gate_ctrl(fe, 1);
951 ret = tuner_i2c_xfer_send(&priv->i2c_props,
952 priv->tun->initdata + 1,
953 priv->tun->initdata[0]);
954 if (ret != priv->tun->initdata[0])
961 static int simple_sleep(struct dvb_frontend *fe)
963 struct tuner_simple_priv *priv = fe->tuner_priv;
965 if (priv->i2c_props.adap == NULL)
968 if (priv->tun->sleepdata) {
971 if (fe->ops.i2c_gate_ctrl)
972 fe->ops.i2c_gate_ctrl(fe, 1);
974 ret = tuner_i2c_xfer_send(&priv->i2c_props,
975 priv->tun->sleepdata + 1,
976 priv->tun->sleepdata[0]);
977 if (ret != priv->tun->sleepdata[0])
984 static int simple_release(struct dvb_frontend *fe)
986 struct tuner_simple_priv *priv = fe->tuner_priv;
988 mutex_lock(&tuner_simple_list_mutex);
991 hybrid_tuner_release_state(priv);
993 mutex_unlock(&tuner_simple_list_mutex);
995 fe->tuner_priv = NULL;
1000 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1002 struct tuner_simple_priv *priv = fe->tuner_priv;
1003 *frequency = priv->frequency;
1007 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1009 struct tuner_simple_priv *priv = fe->tuner_priv;
1010 *bandwidth = priv->bandwidth;
1014 static struct dvb_tuner_ops simple_tuner_ops = {
1015 .init = simple_init,
1016 .sleep = simple_sleep,
1017 .set_analog_params = simple_set_params,
1018 .set_params = simple_dvb_set_params,
1019 .calc_regs = simple_dvb_calc_regs,
1020 .release = simple_release,
1021 .get_frequency = simple_get_frequency,
1022 .get_bandwidth = simple_get_bandwidth,
1023 .get_status = simple_get_status,
1024 .get_rf_strength = simple_get_rf_strength,
1027 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1028 struct i2c_adapter *i2c_adap,
1032 struct tuner_simple_priv *priv = NULL;
1035 if (type >= tuner_count) {
1036 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1037 __func__, type, tuner_count-1);
1041 /* If i2c_adap is set, check that the tuner is at the correct address.
1042 * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1043 * by the digital demod via calc_regs.
1045 if (i2c_adap != NULL) {
1047 struct i2c_msg msg = {
1048 .addr = i2c_addr, .flags = I2C_M_RD,
1052 if (fe->ops.i2c_gate_ctrl)
1053 fe->ops.i2c_gate_ctrl(fe, 1);
1055 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1056 printk(KERN_WARNING "tuner-simple %d-%04x: "
1057 "unable to probe %s, proceeding anyway.",
1058 i2c_adapter_id(i2c_adap), i2c_addr,
1061 if (fe->ops.i2c_gate_ctrl)
1062 fe->ops.i2c_gate_ctrl(fe, 0);
1065 mutex_lock(&tuner_simple_list_mutex);
1067 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1068 hybrid_tuner_instance_list,
1073 mutex_unlock(&tuner_simple_list_mutex);
1076 fe->tuner_priv = priv;
1079 priv->tun = &tuners[type];
1080 priv->nr = simple_devcount++;
1083 fe->tuner_priv = priv;
1087 mutex_unlock(&tuner_simple_list_mutex);
1089 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1090 sizeof(struct dvb_tuner_ops));
1092 if (type != priv->type)
1093 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1094 type, priv->type, priv->tun->name);
1096 tuner_info("type set to %d (%s)\n",
1097 priv->type, priv->tun->name);
1099 if ((debug) || ((atv_input[priv->nr] > 0) ||
1100 (dtv_input[priv->nr] > 0))) {
1101 if (0 == atv_input[priv->nr])
1102 tuner_info("tuner %d atv rf input will be "
1103 "autoselected\n", priv->nr);
1105 tuner_info("tuner %d atv rf input will be "
1106 "set to input %d (insmod option)\n",
1107 priv->nr, atv_input[priv->nr]);
1108 if (0 == dtv_input[priv->nr])
1109 tuner_info("tuner %d dtv rf input will be "
1110 "autoselected\n", priv->nr);
1112 tuner_info("tuner %d dtv rf input will be "
1113 "set to input %d (insmod option)\n",
1114 priv->nr, dtv_input[priv->nr]);
1117 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1118 sizeof(fe->ops.tuner_ops.info.name));
1122 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1124 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1125 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1126 MODULE_LICENSE("GPL");
1129 * Overrides for Emacs so that we follow Linus's tabbing style.
1130 * ---------------------------------------------------------------------------