Merge git://git.infradead.org/~dwmw2/mtd-2.6.26
[linux-2.6] / drivers / media / common / tuners / tuner-simple.c
1 /*
2  * i2c tv tuner chip device driver
3  * controls all those simple 4-control-bytes style tuners.
4  *
5  * This "tuner-simple" module was split apart from the original "tuner" module.
6  */
7 #include <linux/delay.h>
8 #include <linux/i2c.h>
9 #include <linux/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"
15
16 static int debug;
17 module_param(debug, int, 0644);
18 MODULE_PARM_DESC(debug, "enable verbose debug messages");
19
20 #define TUNER_SIMPLE_MAX 64
21 static unsigned int simple_devcount;
22
23 static int offset;
24 module_param(offset, int, 0664);
25 MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
26
27 static unsigned int atv_input[TUNER_SIMPLE_MAX] = \
28                         { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
29 static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \
30                         { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
31 module_param_array(atv_input, int, NULL, 0644);
32 module_param_array(dtv_input, int, NULL, 0644);
33 MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect");
34 MODULE_PARM_DESC(dtv_input, "specify dtv rf input, 0 for autoselect");
35
36 /* ---------------------------------------------------------------------- */
37
38 /* tv standard selection for Temic 4046 FM5
39    this value takes the low bits of control byte 2
40    from datasheet Rev.01, Feb.00
41      standard     BG      I       L       L2      D
42      picture IF   38.9    38.9    38.9    33.95   38.9
43      sound 1      33.4    32.9    32.4    40.45   32.4
44      sound 2      33.16
45      NICAM        33.05   32.348  33.05           33.05
46  */
47 #define TEMIC_SET_PAL_I         0x05
48 #define TEMIC_SET_PAL_DK        0x09
49 #define TEMIC_SET_PAL_L         0x0a /* SECAM ? */
50 #define TEMIC_SET_PAL_L2        0x0b /* change IF ! */
51 #define TEMIC_SET_PAL_BG        0x0c
52
53 /* tv tuner system standard selection for Philips FQ1216ME
54    this value takes the low bits of control byte 2
55    from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
56      standard           BG      DK      I       L       L`
57      picture carrier    38.90   38.90   38.90   38.90   33.95
58      colour             34.47   34.47   34.47   34.47   38.38
59      sound 1            33.40   32.40   32.90   32.40   40.45
60      sound 2            33.16   -       -       -       -
61      NICAM              33.05   33.05   32.35   33.05   39.80
62  */
63 #define PHILIPS_SET_PAL_I       0x01 /* Bit 2 always zero !*/
64 #define PHILIPS_SET_PAL_BGDK    0x09
65 #define PHILIPS_SET_PAL_L2      0x0a
66 #define PHILIPS_SET_PAL_L       0x0b
67
68 /* system switching for Philips FI1216MF MK2
69    from datasheet "1996 Jul 09",
70     standard         BG     L      L'
71     picture carrier  38.90  38.90  33.95
72     colour           34.47  34.37  38.38
73     sound 1          33.40  32.40  40.45
74     sound 2          33.16  -      -
75     NICAM            33.05  33.05  39.80
76  */
77 #define PHILIPS_MF_SET_STD_BG   0x01 /* Bit 2 must be zero, Bit 3 is system output */
78 #define PHILIPS_MF_SET_STD_L    0x03 /* Used on Secam France */
79 #define PHILIPS_MF_SET_STD_LC   0x02 /* Used on SECAM L' */
80
81 /* Control byte */
82
83 #define TUNER_RATIO_MASK        0x06 /* Bit cb1:cb2 */
84 #define TUNER_RATIO_SELECT_50   0x00
85 #define TUNER_RATIO_SELECT_32   0x02
86 #define TUNER_RATIO_SELECT_166  0x04
87 #define TUNER_RATIO_SELECT_62   0x06
88
89 #define TUNER_CHARGE_PUMP       0x40  /* Bit cb6 */
90
91 /* Status byte */
92
93 #define TUNER_POR         0x80
94 #define TUNER_FL          0x40
95 #define TUNER_MODE        0x38
96 #define TUNER_AFC         0x07
97 #define TUNER_SIGNAL      0x07
98 #define TUNER_STEREO      0x10
99
100 #define TUNER_PLL_LOCKED   0x40
101 #define TUNER_STEREO_MK3   0x04
102
103 static DEFINE_MUTEX(tuner_simple_list_mutex);
104 static LIST_HEAD(hybrid_tuner_instance_list);
105
106 struct tuner_simple_priv {
107         unsigned int nr;
108         u16 last_div;
109
110         struct tuner_i2c_props i2c_props;
111         struct list_head hybrid_tuner_instance_list;
112
113         unsigned int type;
114         struct tunertype *tun;
115
116         u32 frequency;
117         u32 bandwidth;
118 };
119
120 /* ---------------------------------------------------------------------- */
121
122 static int tuner_read_status(struct dvb_frontend *fe)
123 {
124         struct tuner_simple_priv *priv = fe->tuner_priv;
125         unsigned char byte;
126
127         if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
128                 return 0;
129
130         return byte;
131 }
132
133 static inline int tuner_signal(const int status)
134 {
135         return (status & TUNER_SIGNAL) << 13;
136 }
137
138 static inline int tuner_stereo(const int type, const int status)
139 {
140         switch (type) {
141         case TUNER_PHILIPS_FM1216ME_MK3:
142         case TUNER_PHILIPS_FM1236_MK3:
143         case TUNER_PHILIPS_FM1256_IH3:
144         case TUNER_LG_NTSC_TAPE:
145                 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
146         default:
147                 return status & TUNER_STEREO;
148         }
149 }
150
151 static inline int tuner_islocked(const int status)
152 {
153         return (status & TUNER_FL);
154 }
155
156 static inline int tuner_afcstatus(const int status)
157 {
158         return (status & TUNER_AFC) - 2;
159 }
160
161
162 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
163 {
164         struct tuner_simple_priv *priv = fe->tuner_priv;
165         int tuner_status;
166
167         if (priv->i2c_props.adap == NULL)
168                 return -EINVAL;
169
170         tuner_status = tuner_read_status(fe);
171
172         *status = 0;
173
174         if (tuner_islocked(tuner_status))
175                 *status = TUNER_STATUS_LOCKED;
176         if (tuner_stereo(priv->type, tuner_status))
177                 *status |= TUNER_STATUS_STEREO;
178
179         tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
180
181         return 0;
182 }
183
184 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
185 {
186         struct tuner_simple_priv *priv = fe->tuner_priv;
187         int signal;
188
189         if (priv->i2c_props.adap == NULL)
190                 return -EINVAL;
191
192         signal = tuner_signal(tuner_read_status(fe));
193
194         *strength = signal;
195
196         tuner_dbg("Signal strength: %d\n", signal);
197
198         return 0;
199 }
200
201 /* ---------------------------------------------------------------------- */
202
203 static inline char *tuner_param_name(enum param_type type)
204 {
205         char *name;
206
207         switch (type) {
208         case TUNER_PARAM_TYPE_RADIO:
209                 name = "radio";
210                 break;
211         case TUNER_PARAM_TYPE_PAL:
212                 name = "pal";
213                 break;
214         case TUNER_PARAM_TYPE_SECAM:
215                 name = "secam";
216                 break;
217         case TUNER_PARAM_TYPE_NTSC:
218                 name = "ntsc";
219                 break;
220         case TUNER_PARAM_TYPE_DIGITAL:
221                 name = "digital";
222                 break;
223         default:
224                 name = "unknown";
225                 break;
226         }
227         return name;
228 }
229
230 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
231                                                 enum param_type desired_type)
232 {
233         struct tuner_simple_priv *priv = fe->tuner_priv;
234         struct tunertype *tun = priv->tun;
235         int i;
236
237         for (i = 0; i < tun->count; i++)
238                 if (desired_type == tun->params[i].type)
239                         break;
240
241         /* use default tuner params if desired_type not available */
242         if (i == tun->count) {
243                 tuner_dbg("desired params (%s) undefined for tuner %d\n",
244                           tuner_param_name(desired_type), priv->type);
245                 i = 0;
246         }
247
248         tuner_dbg("using tuner params #%d (%s)\n", i,
249                   tuner_param_name(tun->params[i].type));
250
251         return &tun->params[i];
252 }
253
254 static int simple_config_lookup(struct dvb_frontend *fe,
255                                 struct tuner_params *t_params,
256                                 int *frequency, u8 *config, u8 *cb)
257 {
258         struct tuner_simple_priv *priv = fe->tuner_priv;
259         int i;
260
261         for (i = 0; i < t_params->count; i++) {
262                 if (*frequency > t_params->ranges[i].limit)
263                         continue;
264                 break;
265         }
266         if (i == t_params->count) {
267                 tuner_dbg("frequency out of range (%d > %d)\n",
268                           *frequency, t_params->ranges[i - 1].limit);
269                 *frequency = t_params->ranges[--i].limit;
270         }
271         *config = t_params->ranges[i].config;
272         *cb     = t_params->ranges[i].cb;
273
274         tuner_dbg("freq = %d.%02d (%d), range = %d, "
275                   "config = 0x%02x, cb = 0x%02x\n",
276                   *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
277                   i, *config, *cb);
278
279         return i;
280 }
281
282 /* ---------------------------------------------------------------------- */
283
284 static void simple_set_rf_input(struct dvb_frontend *fe,
285                                 u8 *config, u8 *cb, unsigned int rf)
286 {
287         struct tuner_simple_priv *priv = fe->tuner_priv;
288
289         switch (priv->type) {
290         case TUNER_PHILIPS_TUV1236D:
291                 switch (rf) {
292                 case 1:
293                         *cb |= 0x08;
294                         break;
295                 default:
296                         *cb &= ~0x08;
297                         break;
298                 }
299                 break;
300         case TUNER_PHILIPS_FCV1236D:
301                 switch (rf) {
302                 case 1:
303                         *cb |= 0x01;
304                         break;
305                 default:
306                         *cb &= ~0x01;
307                         break;
308                 }
309                 break;
310         default:
311                 break;
312         }
313 }
314
315 static int simple_std_setup(struct dvb_frontend *fe,
316                             struct analog_parameters *params,
317                             u8 *config, u8 *cb)
318 {
319         struct tuner_simple_priv *priv = fe->tuner_priv;
320         u8 tuneraddr;
321         int rc;
322
323         /* tv norm specific stuff for multi-norm tuners */
324         switch (priv->type) {
325         case TUNER_PHILIPS_SECAM: /* FI1216MF */
326                 /* 0x01 -> ??? no change ??? */
327                 /* 0x02 -> PAL BDGHI / SECAM L */
328                 /* 0x04 -> ??? PAL others / SECAM others ??? */
329                 *cb &= ~0x03;
330                 if (params->std & V4L2_STD_SECAM_L)
331                         /* also valid for V4L2_STD_SECAM */
332                         *cb |= PHILIPS_MF_SET_STD_L;
333                 else if (params->std & V4L2_STD_SECAM_LC)
334                         *cb |= PHILIPS_MF_SET_STD_LC;
335                 else /* V4L2_STD_B|V4L2_STD_GH */
336                         *cb |= PHILIPS_MF_SET_STD_BG;
337                 break;
338
339         case TUNER_TEMIC_4046FM5:
340                 *cb &= ~0x0f;
341
342                 if (params->std & V4L2_STD_PAL_BG) {
343                         *cb |= TEMIC_SET_PAL_BG;
344
345                 } else if (params->std & V4L2_STD_PAL_I) {
346                         *cb |= TEMIC_SET_PAL_I;
347
348                 } else if (params->std & V4L2_STD_PAL_DK) {
349                         *cb |= TEMIC_SET_PAL_DK;
350
351                 } else if (params->std & V4L2_STD_SECAM_L) {
352                         *cb |= TEMIC_SET_PAL_L;
353
354                 }
355                 break;
356
357         case TUNER_PHILIPS_FQ1216ME:
358                 *cb &= ~0x0f;
359
360                 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
361                         *cb |= PHILIPS_SET_PAL_BGDK;
362
363                 } else if (params->std & V4L2_STD_PAL_I) {
364                         *cb |= PHILIPS_SET_PAL_I;
365
366                 } else if (params->std & V4L2_STD_SECAM_L) {
367                         *cb |= PHILIPS_SET_PAL_L;
368
369                 }
370                 break;
371
372         case TUNER_PHILIPS_FCV1236D:
373                 /* 0x00 -> ATSC antenna input 1 */
374                 /* 0x01 -> ATSC antenna input 2 */
375                 /* 0x02 -> NTSC antenna input 1 */
376                 /* 0x03 -> NTSC antenna input 2 */
377                 *cb &= ~0x03;
378                 if (!(params->std & V4L2_STD_ATSC))
379                         *cb |= 2;
380                 break;
381
382         case TUNER_MICROTUNE_4042FI5:
383                 /* Set the charge pump for fast tuning */
384                 *config |= TUNER_CHARGE_PUMP;
385                 break;
386
387         case TUNER_PHILIPS_TUV1236D:
388         {
389                 /* 0x40 -> ATSC antenna input 1 */
390                 /* 0x48 -> ATSC antenna input 2 */
391                 /* 0x00 -> NTSC antenna input 1 */
392                 /* 0x08 -> NTSC antenna input 2 */
393                 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
394                 *cb &= ~0x40;
395                 if (params->std & V4L2_STD_ATSC) {
396                         *cb |= 0x40;
397                         buffer[1] = 0x04;
398                 }
399                 /* set to the correct mode (analog or digital) */
400                 tuneraddr = priv->i2c_props.addr;
401                 priv->i2c_props.addr = 0x0a;
402                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[0], 2);
403                 if (2 != rc)
404                         tuner_warn("i2c i/o error: rc == %d "
405                                    "(should be 2)\n", rc);
406                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[2], 2);
407                 if (2 != rc)
408                         tuner_warn("i2c i/o error: rc == %d "
409                                    "(should be 2)\n", rc);
410                 priv->i2c_props.addr = tuneraddr;
411                 break;
412         }
413         }
414         if (atv_input[priv->nr])
415                 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
416
417         return 0;
418 }
419
420 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
421                             u16 div, u8 config, u8 cb)
422 {
423         struct tuner_simple_priv *priv = fe->tuner_priv;
424         int rc;
425
426         switch (priv->type) {
427         case TUNER_LG_TDVS_H06XF:
428                 /* Set the Auxiliary Byte. */
429                 buffer[0] = buffer[2];
430                 buffer[0] &= ~0x20;
431                 buffer[0] |= 0x18;
432                 buffer[1] = 0x20;
433                 tuner_dbg("tv 0x%02x 0x%02x\n", buffer[0], buffer[1]);
434
435                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
436                 if (2 != rc)
437                         tuner_warn("i2c i/o error: rc == %d "
438                                    "(should be 2)\n", rc);
439                 break;
440         case TUNER_MICROTUNE_4042FI5:
441         {
442                 /* FIXME - this may also work for other tuners */
443                 unsigned long timeout = jiffies + msecs_to_jiffies(1);
444                 u8 status_byte = 0;
445
446                 /* Wait until the PLL locks */
447                 for (;;) {
448                         if (time_after(jiffies, timeout))
449                                 return 0;
450                         rc = tuner_i2c_xfer_recv(&priv->i2c_props,
451                                                  &status_byte, 1);
452                         if (1 != rc) {
453                                 tuner_warn("i2c i/o read error: rc == %d "
454                                            "(should be 1)\n", rc);
455                                 break;
456                         }
457                         if (status_byte & TUNER_PLL_LOCKED)
458                                 break;
459                         udelay(10);
460                 }
461
462                 /* Set the charge pump for optimized phase noise figure */
463                 config &= ~TUNER_CHARGE_PUMP;
464                 buffer[0] = (div>>8) & 0x7f;
465                 buffer[1] = div      & 0xff;
466                 buffer[2] = config;
467                 buffer[3] = cb;
468                 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
469                           buffer[0], buffer[1], buffer[2], buffer[3]);
470
471                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
472                 if (4 != rc)
473                         tuner_warn("i2c i/o error: rc == %d "
474                                    "(should be 4)\n", rc);
475                 break;
476         }
477         }
478
479         return 0;
480 }
481
482 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
483 {
484         struct tuner_simple_priv *priv = fe->tuner_priv;
485
486         switch (priv->type) {
487         case TUNER_TENA_9533_DI:
488         case TUNER_YMEC_TVF_5533MF:
489                 tuner_dbg("This tuner doesn't have FM. "
490                           "Most cards have a TEA5767 for FM\n");
491                 return 0;
492         case TUNER_PHILIPS_FM1216ME_MK3:
493         case TUNER_PHILIPS_FM1236_MK3:
494         case TUNER_PHILIPS_FMD1216ME_MK3:
495         case TUNER_LG_NTSC_TAPE:
496         case TUNER_PHILIPS_FM1256_IH3:
497                 buffer[3] = 0x19;
498                 break;
499         case TUNER_TNF_5335MF:
500                 buffer[3] = 0x11;
501                 break;
502         case TUNER_LG_PAL_FM:
503                 buffer[3] = 0xa5;
504                 break;
505         case TUNER_THOMSON_DTT761X:
506                 buffer[3] = 0x39;
507                 break;
508         case TUNER_MICROTUNE_4049FM5:
509         default:
510                 buffer[3] = 0xa4;
511                 break;
512         }
513
514         return 0;
515 }
516
517 /* ---------------------------------------------------------------------- */
518
519 static int simple_set_tv_freq(struct dvb_frontend *fe,
520                               struct analog_parameters *params)
521 {
522         struct tuner_simple_priv *priv = fe->tuner_priv;
523         u8 config, cb;
524         u16 div;
525         struct tunertype *tun;
526         u8 buffer[4];
527         int rc, IFPCoff, i;
528         enum param_type desired_type;
529         struct tuner_params *t_params;
530
531         tun = priv->tun;
532
533         /* IFPCoff = Video Intermediate Frequency - Vif:
534                 940  =16*58.75  NTSC/J (Japan)
535                 732  =16*45.75  M/N STD
536                 704  =16*44     ATSC (at DVB code)
537                 632  =16*39.50  I U.K.
538                 622.4=16*38.90  B/G D/K I, L STD
539                 592  =16*37.00  D China
540                 590  =16.36.875 B Australia
541                 543.2=16*33.95  L' STD
542                 171.2=16*10.70  FM Radio (at set_radio_freq)
543         */
544
545         if (params->std == V4L2_STD_NTSC_M_JP) {
546                 IFPCoff      = 940;
547                 desired_type = TUNER_PARAM_TYPE_NTSC;
548         } else if ((params->std & V4L2_STD_MN) &&
549                   !(params->std & ~V4L2_STD_MN)) {
550                 IFPCoff      = 732;
551                 desired_type = TUNER_PARAM_TYPE_NTSC;
552         } else if (params->std == V4L2_STD_SECAM_LC) {
553                 IFPCoff      = 543;
554                 desired_type = TUNER_PARAM_TYPE_SECAM;
555         } else {
556                 IFPCoff      = 623;
557                 desired_type = TUNER_PARAM_TYPE_PAL;
558         }
559
560         t_params = simple_tuner_params(fe, desired_type);
561
562         i = simple_config_lookup(fe, t_params, &params->frequency,
563                                  &config, &cb);
564
565         div = params->frequency + IFPCoff + offset;
566
567         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
568                   "Offset=%d.%02d MHz, div=%0d\n",
569                   params->frequency / 16, params->frequency % 16 * 100 / 16,
570                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
571                   offset / 16, offset % 16 * 100 / 16, div);
572
573         /* tv norm specific stuff for multi-norm tuners */
574         simple_std_setup(fe, params, &config, &cb);
575
576         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
577                 buffer[0] = config;
578                 buffer[1] = cb;
579                 buffer[2] = (div>>8) & 0x7f;
580                 buffer[3] = div      & 0xff;
581         } else {
582                 buffer[0] = (div>>8) & 0x7f;
583                 buffer[1] = div      & 0xff;
584                 buffer[2] = config;
585                 buffer[3] = cb;
586         }
587         priv->last_div = div;
588         if (t_params->has_tda9887) {
589                 struct v4l2_priv_tun_config tda9887_cfg;
590                 int config = 0;
591                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
592                                                  V4L2_STD_SECAM_LC)) &&
593                         !(params->std & ~(V4L2_STD_SECAM_L |
594                                           V4L2_STD_SECAM_LC));
595
596                 tda9887_cfg.tuner = TUNER_TDA9887;
597                 tda9887_cfg.priv  = &config;
598
599                 if (params->std == V4L2_STD_SECAM_LC) {
600                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
601                                 config |= TDA9887_PORT1_ACTIVE;
602                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
603                                 config |= TDA9887_PORT2_ACTIVE;
604                 } else {
605                         if (t_params->port1_active)
606                                 config |= TDA9887_PORT1_ACTIVE;
607                         if (t_params->port2_active)
608                                 config |= TDA9887_PORT2_ACTIVE;
609                 }
610                 if (t_params->intercarrier_mode)
611                         config |= TDA9887_INTERCARRIER;
612                 if (is_secam_l) {
613                         if (i == 0 && t_params->default_top_secam_low)
614                                 config |= TDA9887_TOP(t_params->default_top_secam_low);
615                         else if (i == 1 && t_params->default_top_secam_mid)
616                                 config |= TDA9887_TOP(t_params->default_top_secam_mid);
617                         else if (t_params->default_top_secam_high)
618                                 config |= TDA9887_TOP(t_params->default_top_secam_high);
619                 } else {
620                         if (i == 0 && t_params->default_top_low)
621                                 config |= TDA9887_TOP(t_params->default_top_low);
622                         else if (i == 1 && t_params->default_top_mid)
623                                 config |= TDA9887_TOP(t_params->default_top_mid);
624                         else if (t_params->default_top_high)
625                                 config |= TDA9887_TOP(t_params->default_top_high);
626                 }
627                 if (t_params->default_pll_gating_18)
628                         config |= TDA9887_GATING_18;
629                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
630                                     &tda9887_cfg);
631         }
632         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
633                   buffer[0], buffer[1], buffer[2], buffer[3]);
634
635         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
636         if (4 != rc)
637                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
638
639         simple_post_tune(fe, &buffer[0], div, config, cb);
640
641         return 0;
642 }
643
644 static int simple_set_radio_freq(struct dvb_frontend *fe,
645                                  struct analog_parameters *params)
646 {
647         struct tunertype *tun;
648         struct tuner_simple_priv *priv = fe->tuner_priv;
649         u8 buffer[4];
650         u16 div;
651         int rc, j;
652         struct tuner_params *t_params;
653         unsigned int freq = params->frequency;
654
655         tun = priv->tun;
656
657         for (j = tun->count-1; j > 0; j--)
658                 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
659                         break;
660         /* default t_params (j=0) will be used if desired type wasn't found */
661         t_params = &tun->params[j];
662
663         /* Select Radio 1st IF used */
664         switch (t_params->radio_if) {
665         case 0: /* 10.7 MHz */
666                 freq += (unsigned int)(10.7*16000);
667                 break;
668         case 1: /* 33.3 MHz */
669                 freq += (unsigned int)(33.3*16000);
670                 break;
671         case 2: /* 41.3 MHz */
672                 freq += (unsigned int)(41.3*16000);
673                 break;
674         default:
675                 tuner_warn("Unsupported radio_if value %d\n",
676                            t_params->radio_if);
677                 return 0;
678         }
679
680         /* Bandswitch byte */
681         simple_radio_bandswitch(fe, &buffer[0]);
682
683         buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
684                     TUNER_RATIO_SELECT_50; /* 50 kHz step */
685
686         /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
687            freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
688            freq * (1/800) */
689         div = (freq + 400) / 800;
690
691         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
692                 buffer[0] = buffer[2];
693                 buffer[1] = buffer[3];
694                 buffer[2] = (div>>8) & 0x7f;
695                 buffer[3] = div      & 0xff;
696         } else {
697                 buffer[0] = (div>>8) & 0x7f;
698                 buffer[1] = div      & 0xff;
699         }
700
701         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
702                buffer[0], buffer[1], buffer[2], buffer[3]);
703         priv->last_div = div;
704
705         if (t_params->has_tda9887) {
706                 int config = 0;
707                 struct v4l2_priv_tun_config tda9887_cfg;
708
709                 tda9887_cfg.tuner = TUNER_TDA9887;
710                 tda9887_cfg.priv = &config;
711
712                 if (t_params->port1_active &&
713                     !t_params->port1_fm_high_sensitivity)
714                         config |= TDA9887_PORT1_ACTIVE;
715                 if (t_params->port2_active &&
716                     !t_params->port2_fm_high_sensitivity)
717                         config |= TDA9887_PORT2_ACTIVE;
718                 if (t_params->intercarrier_mode)
719                         config |= TDA9887_INTERCARRIER;
720 /*              if (t_params->port1_set_for_fm_mono)
721                         config &= ~TDA9887_PORT1_ACTIVE;*/
722                 if (t_params->fm_gain_normal)
723                         config |= TDA9887_GAIN_NORMAL;
724                 if (t_params->radio_if == 2)
725                         config |= TDA9887_RIF_41_3;
726                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
727                                     &tda9887_cfg);
728         }
729         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
730         if (4 != rc)
731                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
732
733         return 0;
734 }
735
736 static int simple_set_params(struct dvb_frontend *fe,
737                              struct analog_parameters *params)
738 {
739         struct tuner_simple_priv *priv = fe->tuner_priv;
740         int ret = -EINVAL;
741
742         if (priv->i2c_props.adap == NULL)
743                 return -EINVAL;
744
745         switch (params->mode) {
746         case V4L2_TUNER_RADIO:
747                 ret = simple_set_radio_freq(fe, params);
748                 priv->frequency = params->frequency * 125 / 2;
749                 break;
750         case V4L2_TUNER_ANALOG_TV:
751         case V4L2_TUNER_DIGITAL_TV:
752                 ret = simple_set_tv_freq(fe, params);
753                 priv->frequency = params->frequency * 62500;
754                 break;
755         }
756         priv->bandwidth = 0;
757
758         return ret;
759 }
760
761 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
762                            const struct dvb_frontend_parameters *params)
763 {
764         struct tuner_simple_priv *priv = fe->tuner_priv;
765
766         switch (priv->type) {
767         case TUNER_PHILIPS_FMD1216ME_MK3:
768                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
769                     params->frequency >= 158870000)
770                         buf[3] |= 0x08;
771                 break;
772         case TUNER_PHILIPS_TD1316:
773                 /* determine band */
774                 buf[3] |= (params->frequency < 161000000) ? 1 :
775                           (params->frequency < 444000000) ? 2 : 4;
776
777                 /* setup PLL filter */
778                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
779                         buf[3] |= 1 << 3;
780                 break;
781         case TUNER_PHILIPS_TUV1236D:
782         case TUNER_PHILIPS_FCV1236D:
783         {
784                 unsigned int new_rf;
785
786                 if (dtv_input[priv->nr])
787                         new_rf = dtv_input[priv->nr];
788                 else
789                         switch (params->u.vsb.modulation) {
790                         case QAM_64:
791                         case QAM_256:
792                                 new_rf = 1;
793                                 break;
794                         case VSB_8:
795                         default:
796                                 new_rf = 0;
797                                 break;
798                         }
799                 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
800                 break;
801         }
802         default:
803                 break;
804         }
805 }
806
807 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
808                                 const struct dvb_frontend_parameters *params)
809 {
810         /* This function returns the tuned frequency on success, 0 on error */
811         struct tuner_simple_priv *priv = fe->tuner_priv;
812         struct tunertype *tun = priv->tun;
813         static struct tuner_params *t_params;
814         u8 config, cb;
815         u32 div;
816         int ret, frequency = params->frequency / 62500;
817
818         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
819         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
820         if (ret < 0)
821                 return 0; /* failure */
822
823         div = ((frequency + t_params->iffreq) * 62500 + offset +
824                tun->stepsize/2) / tun->stepsize;
825
826         buf[0] = div >> 8;
827         buf[1] = div & 0xff;
828         buf[2] = config;
829         buf[3] = cb;
830
831         simple_set_dvb(fe, buf, params);
832
833         tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
834                   tun->name, div, buf[0], buf[1], buf[2], buf[3]);
835
836         /* calculate the frequency we set it to */
837         return (div * tun->stepsize) - t_params->iffreq;
838 }
839
840 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
841                                 struct dvb_frontend_parameters *params,
842                                 u8 *buf, int buf_len)
843 {
844         struct tuner_simple_priv *priv = fe->tuner_priv;
845         u32 frequency;
846
847         if (buf_len < 5)
848                 return -EINVAL;
849
850         frequency = simple_dvb_configure(fe, buf+1, params);
851         if (frequency == 0)
852                 return -EINVAL;
853
854         buf[0] = priv->i2c_props.addr;
855
856         priv->frequency = frequency;
857         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
858                 params->u.ofdm.bandwidth : 0;
859
860         return 5;
861 }
862
863 static int simple_dvb_set_params(struct dvb_frontend *fe,
864                                  struct dvb_frontend_parameters *params)
865 {
866         struct tuner_simple_priv *priv = fe->tuner_priv;
867         u32 prev_freq, prev_bw;
868         int ret;
869         u8 buf[5];
870
871         if (priv->i2c_props.adap == NULL)
872                 return -EINVAL;
873
874         prev_freq = priv->frequency;
875         prev_bw   = priv->bandwidth;
876
877         ret = simple_dvb_calc_regs(fe, params, buf, 5);
878         if (ret != 5)
879                 goto fail;
880
881         /* put analog demod in standby when tuning digital */
882         if (fe->ops.analog_ops.standby)
883                 fe->ops.analog_ops.standby(fe);
884
885         if (fe->ops.i2c_gate_ctrl)
886                 fe->ops.i2c_gate_ctrl(fe, 1);
887
888         /* buf[0] contains the i2c address, but *
889          * we already have it in i2c_props.addr */
890         ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
891         if (ret != 4)
892                 goto fail;
893
894         return 0;
895 fail:
896         /* calc_regs sets frequency and bandwidth. if we failed, unset them */
897         priv->frequency = prev_freq;
898         priv->bandwidth = prev_bw;
899
900         return ret;
901 }
902
903 static int simple_init(struct dvb_frontend *fe)
904 {
905         struct tuner_simple_priv *priv = fe->tuner_priv;
906
907         if (priv->i2c_props.adap == NULL)
908                 return -EINVAL;
909
910         if (priv->tun->initdata) {
911                 int ret;
912
913                 if (fe->ops.i2c_gate_ctrl)
914                         fe->ops.i2c_gate_ctrl(fe, 1);
915
916                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
917                                           priv->tun->initdata + 1,
918                                           priv->tun->initdata[0]);
919                 if (ret != priv->tun->initdata[0])
920                         return ret;
921         }
922
923         return 0;
924 }
925
926 static int simple_sleep(struct dvb_frontend *fe)
927 {
928         struct tuner_simple_priv *priv = fe->tuner_priv;
929
930         if (priv->i2c_props.adap == NULL)
931                 return -EINVAL;
932
933         if (priv->tun->sleepdata) {
934                 int ret;
935
936                 if (fe->ops.i2c_gate_ctrl)
937                         fe->ops.i2c_gate_ctrl(fe, 1);
938
939                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
940                                           priv->tun->sleepdata + 1,
941                                           priv->tun->sleepdata[0]);
942                 if (ret != priv->tun->sleepdata[0])
943                         return ret;
944         }
945
946         return 0;
947 }
948
949 static int simple_release(struct dvb_frontend *fe)
950 {
951         struct tuner_simple_priv *priv = fe->tuner_priv;
952
953         mutex_lock(&tuner_simple_list_mutex);
954
955         if (priv)
956                 hybrid_tuner_release_state(priv);
957
958         mutex_unlock(&tuner_simple_list_mutex);
959
960         fe->tuner_priv = NULL;
961
962         return 0;
963 }
964
965 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
966 {
967         struct tuner_simple_priv *priv = fe->tuner_priv;
968         *frequency = priv->frequency;
969         return 0;
970 }
971
972 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
973 {
974         struct tuner_simple_priv *priv = fe->tuner_priv;
975         *bandwidth = priv->bandwidth;
976         return 0;
977 }
978
979 static struct dvb_tuner_ops simple_tuner_ops = {
980         .init              = simple_init,
981         .sleep             = simple_sleep,
982         .set_analog_params = simple_set_params,
983         .set_params        = simple_dvb_set_params,
984         .calc_regs         = simple_dvb_calc_regs,
985         .release           = simple_release,
986         .get_frequency     = simple_get_frequency,
987         .get_bandwidth     = simple_get_bandwidth,
988         .get_status        = simple_get_status,
989         .get_rf_strength   = simple_get_rf_strength,
990 };
991
992 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
993                                          struct i2c_adapter *i2c_adap,
994                                          u8 i2c_addr,
995                                          unsigned int type)
996 {
997         struct tuner_simple_priv *priv = NULL;
998         int instance;
999
1000         if (type >= tuner_count) {
1001                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1002                        __func__, type, tuner_count-1);
1003                 return NULL;
1004         }
1005
1006         /* If i2c_adap is set, check that the tuner is at the correct address.
1007          * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1008          * by the digital demod via calc_regs.
1009          */
1010         if (i2c_adap != NULL) {
1011                 u8 b[1];
1012                 struct i2c_msg msg = {
1013                         .addr = i2c_addr, .flags = I2C_M_RD,
1014                         .buf = b, .len = 1,
1015                 };
1016
1017                 if (fe->ops.i2c_gate_ctrl)
1018                         fe->ops.i2c_gate_ctrl(fe, 1);
1019
1020                 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1021                         printk(KERN_WARNING "tuner-simple %d-%04x: "
1022                                "unable to probe %s, proceeding anyway.",
1023                                i2c_adapter_id(i2c_adap), i2c_addr,
1024                                tuners[type].name);
1025
1026                 if (fe->ops.i2c_gate_ctrl)
1027                         fe->ops.i2c_gate_ctrl(fe, 0);
1028         }
1029
1030         mutex_lock(&tuner_simple_list_mutex);
1031
1032         instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1033                                               hybrid_tuner_instance_list,
1034                                               i2c_adap, i2c_addr,
1035                                               "tuner-simple");
1036         switch (instance) {
1037         case 0:
1038                 mutex_unlock(&tuner_simple_list_mutex);
1039                 return NULL;
1040                 break;
1041         case 1:
1042                 fe->tuner_priv = priv;
1043
1044                 priv->type = type;
1045                 priv->tun  = &tuners[type];
1046                 priv->nr   = simple_devcount++;
1047                 break;
1048         default:
1049                 fe->tuner_priv = priv;
1050                 break;
1051         }
1052
1053         mutex_unlock(&tuner_simple_list_mutex);
1054
1055         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1056                sizeof(struct dvb_tuner_ops));
1057
1058         tuner_info("type set to %d (%s)\n", type, priv->tun->name);
1059
1060         if ((debug) || ((atv_input[priv->nr] > 0) ||
1061                         (dtv_input[priv->nr] > 0))) {
1062                 if (0 == atv_input[priv->nr])
1063                         tuner_info("tuner %d atv rf input will be "
1064                                    "autoselected\n", priv->nr);
1065                 else
1066                         tuner_info("tuner %d atv rf input will be "
1067                                    "set to input %d (insmod option)\n",
1068                                    priv->nr, atv_input[priv->nr]);
1069                 if (0 == dtv_input[priv->nr])
1070                         tuner_info("tuner %d dtv rf input will be "
1071                                    "autoselected\n", priv->nr);
1072                 else
1073                         tuner_info("tuner %d dtv rf input will be "
1074                                    "set to input %d (insmod option)\n",
1075                                    priv->nr, dtv_input[priv->nr]);
1076         }
1077
1078         strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1079                 sizeof(fe->ops.tuner_ops.info.name));
1080
1081         return fe;
1082 }
1083 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1084
1085 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1086 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1087 MODULE_LICENSE("GPL");
1088
1089 /*
1090  * Overrides for Emacs so that we follow Linus's tabbing style.
1091  * ---------------------------------------------------------------------------
1092  * Local variables:
1093  * c-basic-offset: 8
1094  * End:
1095  */