Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[sfrench/cifs-2.6.git] / 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/videodev2.h>
10 #include <media/tuner.h>
11 #include <media/v4l2-common.h>
12 #include <media/tuner-types.h>
13 #include "tuner-i2c.h"
14 #include "tuner-simple.h"
15
16 static int debug;
17 module_param(debug, int, 0644);
18 MODULE_PARM_DESC(debug, "enable verbose debug messages");
19
20 #define TUNER_SIMPLE_MAX 64
21 static unsigned int simple_devcount;
22
23 static int offset;
24 module_param(offset, int, 0664);
25 MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
26
27 static unsigned int atv_input[TUNER_SIMPLE_MAX] = \
28                         { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
29 static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \
30                         { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
31 module_param_array(atv_input, int, NULL, 0644);
32 module_param_array(dtv_input, int, NULL, 0644);
33 MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect");
34 MODULE_PARM_DESC(dtv_input, "specify dtv rf input, 0 for autoselect");
35
36 /* ---------------------------------------------------------------------- */
37
38 /* tv standard selection for Temic 4046 FM5
39    this value takes the low bits of control byte 2
40    from datasheet Rev.01, Feb.00
41      standard     BG      I       L       L2      D
42      picture IF   38.9    38.9    38.9    33.95   38.9
43      sound 1      33.4    32.9    32.4    40.45   32.4
44      sound 2      33.16
45      NICAM        33.05   32.348  33.05           33.05
46  */
47 #define TEMIC_SET_PAL_I         0x05
48 #define TEMIC_SET_PAL_DK        0x09
49 #define TEMIC_SET_PAL_L         0x0a /* SECAM ? */
50 #define TEMIC_SET_PAL_L2        0x0b /* change IF ! */
51 #define TEMIC_SET_PAL_BG        0x0c
52
53 /* tv tuner system standard selection for Philips FQ1216ME
54    this value takes the low bits of control byte 2
55    from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
56      standard           BG      DK      I       L       L`
57      picture carrier    38.90   38.90   38.90   38.90   33.95
58      colour             34.47   34.47   34.47   34.47   38.38
59      sound 1            33.40   32.40   32.90   32.40   40.45
60      sound 2            33.16   -       -       -       -
61      NICAM              33.05   33.05   32.35   33.05   39.80
62  */
63 #define PHILIPS_SET_PAL_I       0x01 /* Bit 2 always zero !*/
64 #define PHILIPS_SET_PAL_BGDK    0x09
65 #define PHILIPS_SET_PAL_L2      0x0a
66 #define PHILIPS_SET_PAL_L       0x0b
67
68 /* system switching for Philips FI1216MF MK2
69    from datasheet "1996 Jul 09",
70     standard         BG     L      L'
71     picture carrier  38.90  38.90  33.95
72     colour           34.47  34.37  38.38
73     sound 1          33.40  32.40  40.45
74     sound 2          33.16  -      -
75     NICAM            33.05  33.05  39.80
76  */
77 #define PHILIPS_MF_SET_STD_BG   0x01 /* Bit 2 must be zero, Bit 3 is system output */
78 #define PHILIPS_MF_SET_STD_L    0x03 /* Used on Secam France */
79 #define PHILIPS_MF_SET_STD_LC   0x02 /* Used on SECAM L' */
80
81 /* Control byte */
82
83 #define TUNER_RATIO_MASK        0x06 /* Bit cb1:cb2 */
84 #define TUNER_RATIO_SELECT_50   0x00
85 #define TUNER_RATIO_SELECT_32   0x02
86 #define TUNER_RATIO_SELECT_166  0x04
87 #define TUNER_RATIO_SELECT_62   0x06
88
89 #define TUNER_CHARGE_PUMP       0x40  /* Bit cb6 */
90
91 /* Status byte */
92
93 #define TUNER_POR         0x80
94 #define TUNER_FL          0x40
95 #define TUNER_MODE        0x38
96 #define TUNER_AFC         0x07
97 #define TUNER_SIGNAL      0x07
98 #define TUNER_STEREO      0x10
99
100 #define TUNER_PLL_LOCKED   0x40
101 #define TUNER_STEREO_MK3   0x04
102
103 static DEFINE_MUTEX(tuner_simple_list_mutex);
104 static LIST_HEAD(hybrid_tuner_instance_list);
105
106 struct tuner_simple_priv {
107         unsigned int nr;
108         u16 last_div;
109
110         struct tuner_i2c_props i2c_props;
111         struct list_head hybrid_tuner_instance_list;
112
113         unsigned int type;
114         struct tunertype *tun;
115
116         u32 frequency;
117         u32 bandwidth;
118 };
119
120 /* ---------------------------------------------------------------------- */
121
122 static int tuner_read_status(struct dvb_frontend *fe)
123 {
124         struct tuner_simple_priv *priv = fe->tuner_priv;
125         unsigned char byte;
126
127         if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
128                 return 0;
129
130         return byte;
131 }
132
133 static inline int tuner_signal(const int status)
134 {
135         return (status & TUNER_SIGNAL) << 13;
136 }
137
138 static inline int tuner_stereo(const int type, const int status)
139 {
140         switch (type) {
141         case TUNER_PHILIPS_FM1216ME_MK3:
142         case TUNER_PHILIPS_FM1236_MK3:
143         case TUNER_PHILIPS_FM1256_IH3:
144         case TUNER_LG_NTSC_TAPE:
145         case TUNER_TCL_MF02GIP_5N:
146                 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
147         default:
148                 return status & TUNER_STEREO;
149         }
150 }
151
152 static inline int tuner_islocked(const int status)
153 {
154         return (status & TUNER_FL);
155 }
156
157 static inline int tuner_afcstatus(const int status)
158 {
159         return (status & TUNER_AFC) - 2;
160 }
161
162
163 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
164 {
165         struct tuner_simple_priv *priv = fe->tuner_priv;
166         int tuner_status;
167
168         if (priv->i2c_props.adap == NULL)
169                 return -EINVAL;
170
171         tuner_status = tuner_read_status(fe);
172
173         *status = 0;
174
175         if (tuner_islocked(tuner_status))
176                 *status = TUNER_STATUS_LOCKED;
177         if (tuner_stereo(priv->type, tuner_status))
178                 *status |= TUNER_STATUS_STEREO;
179
180         tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
181
182         return 0;
183 }
184
185 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
186 {
187         struct tuner_simple_priv *priv = fe->tuner_priv;
188         int signal;
189
190         if (priv->i2c_props.adap == NULL)
191                 return -EINVAL;
192
193         signal = tuner_signal(tuner_read_status(fe));
194
195         *strength = signal;
196
197         tuner_dbg("Signal strength: %d\n", signal);
198
199         return 0;
200 }
201
202 /* ---------------------------------------------------------------------- */
203
204 static inline char *tuner_param_name(enum param_type type)
205 {
206         char *name;
207
208         switch (type) {
209         case TUNER_PARAM_TYPE_RADIO:
210                 name = "radio";
211                 break;
212         case TUNER_PARAM_TYPE_PAL:
213                 name = "pal";
214                 break;
215         case TUNER_PARAM_TYPE_SECAM:
216                 name = "secam";
217                 break;
218         case TUNER_PARAM_TYPE_NTSC:
219                 name = "ntsc";
220                 break;
221         case TUNER_PARAM_TYPE_DIGITAL:
222                 name = "digital";
223                 break;
224         default:
225                 name = "unknown";
226                 break;
227         }
228         return name;
229 }
230
231 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
232                                                 enum param_type desired_type)
233 {
234         struct tuner_simple_priv *priv = fe->tuner_priv;
235         struct tunertype *tun = priv->tun;
236         int i;
237
238         for (i = 0; i < tun->count; i++)
239                 if (desired_type == tun->params[i].type)
240                         break;
241
242         /* use default tuner params if desired_type not available */
243         if (i == tun->count) {
244                 tuner_dbg("desired params (%s) undefined for tuner %d\n",
245                           tuner_param_name(desired_type), priv->type);
246                 i = 0;
247         }
248
249         tuner_dbg("using tuner params #%d (%s)\n", i,
250                   tuner_param_name(tun->params[i].type));
251
252         return &tun->params[i];
253 }
254
255 static int simple_config_lookup(struct dvb_frontend *fe,
256                                 struct tuner_params *t_params,
257                                 unsigned *frequency, u8 *config, u8 *cb)
258 {
259         struct tuner_simple_priv *priv = fe->tuner_priv;
260         int i;
261
262         for (i = 0; i < t_params->count; i++) {
263                 if (*frequency > t_params->ranges[i].limit)
264                         continue;
265                 break;
266         }
267         if (i == t_params->count) {
268                 tuner_dbg("frequency out of range (%d > %d)\n",
269                           *frequency, t_params->ranges[i - 1].limit);
270                 *frequency = t_params->ranges[--i].limit;
271         }
272         *config = t_params->ranges[i].config;
273         *cb     = t_params->ranges[i].cb;
274
275         tuner_dbg("freq = %d.%02d (%d), range = %d, "
276                   "config = 0x%02x, cb = 0x%02x\n",
277                   *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
278                   i, *config, *cb);
279
280         return i;
281 }
282
283 /* ---------------------------------------------------------------------- */
284
285 static void simple_set_rf_input(struct dvb_frontend *fe,
286                                 u8 *config, u8 *cb, unsigned int rf)
287 {
288         struct tuner_simple_priv *priv = fe->tuner_priv;
289
290         switch (priv->type) {
291         case TUNER_PHILIPS_TUV1236D:
292                 switch (rf) {
293                 case 1:
294                         *cb |= 0x08;
295                         break;
296                 default:
297                         *cb &= ~0x08;
298                         break;
299                 }
300                 break;
301         case TUNER_PHILIPS_FCV1236D:
302                 switch (rf) {
303                 case 1:
304                         *cb |= 0x01;
305                         break;
306                 default:
307                         *cb &= ~0x01;
308                         break;
309                 }
310                 break;
311         default:
312                 break;
313         }
314 }
315
316 static int simple_std_setup(struct dvb_frontend *fe,
317                             struct analog_parameters *params,
318                             u8 *config, u8 *cb)
319 {
320         struct tuner_simple_priv *priv = fe->tuner_priv;
321         u8 tuneraddr;
322         int rc;
323
324         /* tv norm specific stuff for multi-norm tuners */
325         switch (priv->type) {
326         case TUNER_PHILIPS_SECAM: /* FI1216MF */
327                 /* 0x01 -> ??? no change ??? */
328                 /* 0x02 -> PAL BDGHI / SECAM L */
329                 /* 0x04 -> ??? PAL others / SECAM others ??? */
330                 *cb &= ~0x03;
331                 if (params->std & V4L2_STD_SECAM_L)
332                         /* also valid for V4L2_STD_SECAM */
333                         *cb |= PHILIPS_MF_SET_STD_L;
334                 else if (params->std & V4L2_STD_SECAM_LC)
335                         *cb |= PHILIPS_MF_SET_STD_LC;
336                 else /* V4L2_STD_B|V4L2_STD_GH */
337                         *cb |= PHILIPS_MF_SET_STD_BG;
338                 break;
339
340         case TUNER_TEMIC_4046FM5:
341                 *cb &= ~0x0f;
342
343                 if (params->std & V4L2_STD_PAL_BG) {
344                         *cb |= TEMIC_SET_PAL_BG;
345
346                 } else if (params->std & V4L2_STD_PAL_I) {
347                         *cb |= TEMIC_SET_PAL_I;
348
349                 } else if (params->std & V4L2_STD_PAL_DK) {
350                         *cb |= TEMIC_SET_PAL_DK;
351
352                 } else if (params->std & V4L2_STD_SECAM_L) {
353                         *cb |= TEMIC_SET_PAL_L;
354
355                 }
356                 break;
357
358         case TUNER_PHILIPS_FQ1216ME:
359                 *cb &= ~0x0f;
360
361                 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
362                         *cb |= PHILIPS_SET_PAL_BGDK;
363
364                 } else if (params->std & V4L2_STD_PAL_I) {
365                         *cb |= PHILIPS_SET_PAL_I;
366
367                 } else if (params->std & V4L2_STD_SECAM_L) {
368                         *cb |= PHILIPS_SET_PAL_L;
369
370                 }
371                 break;
372
373         case TUNER_PHILIPS_FCV1236D:
374                 /* 0x00 -> ATSC antenna input 1 */
375                 /* 0x01 -> ATSC antenna input 2 */
376                 /* 0x02 -> NTSC antenna input 1 */
377                 /* 0x03 -> NTSC antenna input 2 */
378                 *cb &= ~0x03;
379                 if (!(params->std & V4L2_STD_ATSC))
380                         *cb |= 2;
381                 break;
382
383         case TUNER_MICROTUNE_4042FI5:
384                 /* Set the charge pump for fast tuning */
385                 *config |= TUNER_CHARGE_PUMP;
386                 break;
387
388         case TUNER_PHILIPS_TUV1236D:
389         {
390                 /* 0x40 -> ATSC antenna input 1 */
391                 /* 0x48 -> ATSC antenna input 2 */
392                 /* 0x00 -> NTSC antenna input 1 */
393                 /* 0x08 -> NTSC antenna input 2 */
394                 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
395                 *cb &= ~0x40;
396                 if (params->std & V4L2_STD_ATSC) {
397                         *cb |= 0x40;
398                         buffer[1] = 0x04;
399                 }
400                 /* set to the correct mode (analog or digital) */
401                 tuneraddr = priv->i2c_props.addr;
402                 priv->i2c_props.addr = 0x0a;
403                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[0], 2);
404                 if (2 != rc)
405                         tuner_warn("i2c i/o error: rc == %d "
406                                    "(should be 2)\n", rc);
407                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[2], 2);
408                 if (2 != rc)
409                         tuner_warn("i2c i/o error: rc == %d "
410                                    "(should be 2)\n", rc);
411                 priv->i2c_props.addr = tuneraddr;
412                 break;
413         }
414         }
415         if (atv_input[priv->nr])
416                 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
417
418         return 0;
419 }
420
421 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
422                             u16 div, u8 config, u8 cb)
423 {
424         struct tuner_simple_priv *priv = fe->tuner_priv;
425         int rc;
426
427         switch (priv->type) {
428         case TUNER_LG_TDVS_H06XF:
429                 /* Set the Auxiliary Byte. */
430                 buffer[0] = buffer[2];
431                 buffer[0] &= ~0x20;
432                 buffer[0] |= 0x18;
433                 buffer[1] = 0x20;
434                 tuner_dbg("tv 0x%02x 0x%02x\n", buffer[0], buffer[1]);
435
436                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
437                 if (2 != rc)
438                         tuner_warn("i2c i/o error: rc == %d "
439                                    "(should be 2)\n", rc);
440                 break;
441         case TUNER_MICROTUNE_4042FI5:
442         {
443                 /* FIXME - this may also work for other tuners */
444                 unsigned long timeout = jiffies + msecs_to_jiffies(1);
445                 u8 status_byte = 0;
446
447                 /* Wait until the PLL locks */
448                 for (;;) {
449                         if (time_after(jiffies, timeout))
450                                 return 0;
451                         rc = tuner_i2c_xfer_recv(&priv->i2c_props,
452                                                  &status_byte, 1);
453                         if (1 != rc) {
454                                 tuner_warn("i2c i/o read error: rc == %d "
455                                            "(should be 1)\n", rc);
456                                 break;
457                         }
458                         if (status_byte & TUNER_PLL_LOCKED)
459                                 break;
460                         udelay(10);
461                 }
462
463                 /* Set the charge pump for optimized phase noise figure */
464                 config &= ~TUNER_CHARGE_PUMP;
465                 buffer[0] = (div>>8) & 0x7f;
466                 buffer[1] = div      & 0xff;
467                 buffer[2] = config;
468                 buffer[3] = cb;
469                 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
470                           buffer[0], buffer[1], buffer[2], buffer[3]);
471
472                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
473                 if (4 != rc)
474                         tuner_warn("i2c i/o error: rc == %d "
475                                    "(should be 4)\n", rc);
476                 break;
477         }
478         }
479
480         return 0;
481 }
482
483 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
484 {
485         struct tuner_simple_priv *priv = fe->tuner_priv;
486
487         switch (priv->type) {
488         case TUNER_TENA_9533_DI:
489         case TUNER_YMEC_TVF_5533MF:
490                 tuner_dbg("This tuner doesn't have FM. "
491                           "Most cards have a TEA5767 for FM\n");
492                 return 0;
493         case TUNER_PHILIPS_FM1216ME_MK3:
494         case TUNER_PHILIPS_FM1236_MK3:
495         case TUNER_PHILIPS_FMD1216ME_MK3:
496         case TUNER_PHILIPS_FMD1216MEX_MK3:
497         case TUNER_LG_NTSC_TAPE:
498         case TUNER_PHILIPS_FM1256_IH3:
499         case TUNER_TCL_MF02GIP_5N:
500                 buffer[3] = 0x19;
501                 break;
502         case TUNER_TNF_5335MF:
503                 buffer[3] = 0x11;
504                 break;
505         case TUNER_LG_PAL_FM:
506                 buffer[3] = 0xa5;
507                 break;
508         case TUNER_THOMSON_DTT761X:
509                 buffer[3] = 0x39;
510                 break;
511         case TUNER_MICROTUNE_4049FM5:
512         default:
513                 buffer[3] = 0xa4;
514                 break;
515         }
516
517         return 0;
518 }
519
520 /* ---------------------------------------------------------------------- */
521
522 static int simple_set_tv_freq(struct dvb_frontend *fe,
523                               struct analog_parameters *params)
524 {
525         struct tuner_simple_priv *priv = fe->tuner_priv;
526         u8 config, cb;
527         u16 div;
528         struct tunertype *tun;
529         u8 buffer[4];
530         int rc, IFPCoff, i;
531         enum param_type desired_type;
532         struct tuner_params *t_params;
533
534         tun = priv->tun;
535
536         /* IFPCoff = Video Intermediate Frequency - Vif:
537                 940  =16*58.75  NTSC/J (Japan)
538                 732  =16*45.75  M/N STD
539                 704  =16*44     ATSC (at DVB code)
540                 632  =16*39.50  I U.K.
541                 622.4=16*38.90  B/G D/K I, L STD
542                 592  =16*37.00  D China
543                 590  =16.36.875 B Australia
544                 543.2=16*33.95  L' STD
545                 171.2=16*10.70  FM Radio (at set_radio_freq)
546         */
547
548         if (params->std == V4L2_STD_NTSC_M_JP) {
549                 IFPCoff      = 940;
550                 desired_type = TUNER_PARAM_TYPE_NTSC;
551         } else if ((params->std & V4L2_STD_MN) &&
552                   !(params->std & ~V4L2_STD_MN)) {
553                 IFPCoff      = 732;
554                 desired_type = TUNER_PARAM_TYPE_NTSC;
555         } else if (params->std == V4L2_STD_SECAM_LC) {
556                 IFPCoff      = 543;
557                 desired_type = TUNER_PARAM_TYPE_SECAM;
558         } else {
559                 IFPCoff      = 623;
560                 desired_type = TUNER_PARAM_TYPE_PAL;
561         }
562
563         t_params = simple_tuner_params(fe, desired_type);
564
565         i = simple_config_lookup(fe, t_params, &params->frequency,
566                                  &config, &cb);
567
568         div = params->frequency + IFPCoff + offset;
569
570         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
571                   "Offset=%d.%02d MHz, div=%0d\n",
572                   params->frequency / 16, params->frequency % 16 * 100 / 16,
573                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
574                   offset / 16, offset % 16 * 100 / 16, div);
575
576         /* tv norm specific stuff for multi-norm tuners */
577         simple_std_setup(fe, params, &config, &cb);
578
579         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
580                 buffer[0] = config;
581                 buffer[1] = cb;
582                 buffer[2] = (div>>8) & 0x7f;
583                 buffer[3] = div      & 0xff;
584         } else {
585                 buffer[0] = (div>>8) & 0x7f;
586                 buffer[1] = div      & 0xff;
587                 buffer[2] = config;
588                 buffer[3] = cb;
589         }
590         priv->last_div = div;
591         if (t_params->has_tda9887) {
592                 struct v4l2_priv_tun_config tda9887_cfg;
593                 int tda_config = 0;
594                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
595                                                  V4L2_STD_SECAM_LC)) &&
596                         !(params->std & ~(V4L2_STD_SECAM_L |
597                                           V4L2_STD_SECAM_LC));
598
599                 tda9887_cfg.tuner = TUNER_TDA9887;
600                 tda9887_cfg.priv  = &tda_config;
601
602                 if (params->std == V4L2_STD_SECAM_LC) {
603                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
604                                 tda_config |= TDA9887_PORT1_ACTIVE;
605                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
606                                 tda_config |= TDA9887_PORT2_ACTIVE;
607                 } else {
608                         if (t_params->port1_active)
609                                 tda_config |= TDA9887_PORT1_ACTIVE;
610                         if (t_params->port2_active)
611                                 tda_config |= TDA9887_PORT2_ACTIVE;
612                 }
613                 if (t_params->intercarrier_mode)
614                         tda_config |= TDA9887_INTERCARRIER;
615                 if (is_secam_l) {
616                         if (i == 0 && t_params->default_top_secam_low)
617                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
618                         else if (i == 1 && t_params->default_top_secam_mid)
619                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
620                         else if (t_params->default_top_secam_high)
621                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
622                 } else {
623                         if (i == 0 && t_params->default_top_low)
624                                 tda_config |= TDA9887_TOP(t_params->default_top_low);
625                         else if (i == 1 && t_params->default_top_mid)
626                                 tda_config |= TDA9887_TOP(t_params->default_top_mid);
627                         else if (t_params->default_top_high)
628                                 tda_config |= TDA9887_TOP(t_params->default_top_high);
629                 }
630                 if (t_params->default_pll_gating_18)
631                         tda_config |= TDA9887_GATING_18;
632                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
633                                     &tda9887_cfg);
634         }
635         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
636                   buffer[0], buffer[1], buffer[2], buffer[3]);
637
638         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
639         if (4 != rc)
640                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
641
642         simple_post_tune(fe, &buffer[0], div, config, cb);
643
644         return 0;
645 }
646
647 static int simple_set_radio_freq(struct dvb_frontend *fe,
648                                  struct analog_parameters *params)
649 {
650         struct tunertype *tun;
651         struct tuner_simple_priv *priv = fe->tuner_priv;
652         u8 buffer[4];
653         u16 div;
654         int rc, j;
655         struct tuner_params *t_params;
656         unsigned int freq = params->frequency;
657
658         tun = priv->tun;
659
660         for (j = tun->count-1; j > 0; j--)
661                 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
662                         break;
663         /* default t_params (j=0) will be used if desired type wasn't found */
664         t_params = &tun->params[j];
665
666         /* Select Radio 1st IF used */
667         switch (t_params->radio_if) {
668         case 0: /* 10.7 MHz */
669                 freq += (unsigned int)(10.7*16000);
670                 break;
671         case 1: /* 33.3 MHz */
672                 freq += (unsigned int)(33.3*16000);
673                 break;
674         case 2: /* 41.3 MHz */
675                 freq += (unsigned int)(41.3*16000);
676                 break;
677         default:
678                 tuner_warn("Unsupported radio_if value %d\n",
679                            t_params->radio_if);
680                 return 0;
681         }
682
683         /* Bandswitch byte */
684         simple_radio_bandswitch(fe, &buffer[0]);
685
686         buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
687                     TUNER_RATIO_SELECT_50; /* 50 kHz step */
688
689         /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
690            freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
691            freq * (1/800) */
692         div = (freq + 400) / 800;
693
694         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
695                 buffer[0] = buffer[2];
696                 buffer[1] = buffer[3];
697                 buffer[2] = (div>>8) & 0x7f;
698                 buffer[3] = div      & 0xff;
699         } else {
700                 buffer[0] = (div>>8) & 0x7f;
701                 buffer[1] = div      & 0xff;
702         }
703
704         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
705                buffer[0], buffer[1], buffer[2], buffer[3]);
706         priv->last_div = div;
707
708         if (t_params->has_tda9887) {
709                 int config = 0;
710                 struct v4l2_priv_tun_config tda9887_cfg;
711
712                 tda9887_cfg.tuner = TUNER_TDA9887;
713                 tda9887_cfg.priv = &config;
714
715                 if (t_params->port1_active &&
716                     !t_params->port1_fm_high_sensitivity)
717                         config |= TDA9887_PORT1_ACTIVE;
718                 if (t_params->port2_active &&
719                     !t_params->port2_fm_high_sensitivity)
720                         config |= TDA9887_PORT2_ACTIVE;
721                 if (t_params->intercarrier_mode)
722                         config |= TDA9887_INTERCARRIER;
723 /*              if (t_params->port1_set_for_fm_mono)
724                         config &= ~TDA9887_PORT1_ACTIVE;*/
725                 if (t_params->fm_gain_normal)
726                         config |= TDA9887_GAIN_NORMAL;
727                 if (t_params->radio_if == 2)
728                         config |= TDA9887_RIF_41_3;
729                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
730                                     &tda9887_cfg);
731         }
732         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
733         if (4 != rc)
734                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
735
736         return 0;
737 }
738
739 static int simple_set_params(struct dvb_frontend *fe,
740                              struct analog_parameters *params)
741 {
742         struct tuner_simple_priv *priv = fe->tuner_priv;
743         int ret = -EINVAL;
744
745         if (priv->i2c_props.adap == NULL)
746                 return -EINVAL;
747
748         switch (params->mode) {
749         case V4L2_TUNER_RADIO:
750                 ret = simple_set_radio_freq(fe, params);
751                 priv->frequency = params->frequency * 125 / 2;
752                 break;
753         case V4L2_TUNER_ANALOG_TV:
754         case V4L2_TUNER_DIGITAL_TV:
755                 ret = simple_set_tv_freq(fe, params);
756                 priv->frequency = params->frequency * 62500;
757                 break;
758         }
759         priv->bandwidth = 0;
760
761         return ret;
762 }
763
764 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
765                            const struct dvb_frontend_parameters *params)
766 {
767         struct tuner_simple_priv *priv = fe->tuner_priv;
768
769         switch (priv->type) {
770         case TUNER_PHILIPS_FMD1216ME_MK3:
771         case TUNER_PHILIPS_FMD1216MEX_MK3:
772                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
773                     params->frequency >= 158870000)
774                         buf[3] |= 0x08;
775                 break;
776         case TUNER_PHILIPS_TD1316:
777                 /* determine band */
778                 buf[3] |= (params->frequency < 161000000) ? 1 :
779                           (params->frequency < 444000000) ? 2 : 4;
780
781                 /* setup PLL filter */
782                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
783                         buf[3] |= 1 << 3;
784                 break;
785         case TUNER_PHILIPS_TUV1236D:
786         case TUNER_PHILIPS_FCV1236D:
787         {
788                 unsigned int new_rf;
789
790                 if (dtv_input[priv->nr])
791                         new_rf = dtv_input[priv->nr];
792                 else
793                         switch (params->u.vsb.modulation) {
794                         case QAM_64:
795                         case QAM_256:
796                                 new_rf = 1;
797                                 break;
798                         case VSB_8:
799                         default:
800                                 new_rf = 0;
801                                 break;
802                         }
803                 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
804                 break;
805         }
806         default:
807                 break;
808         }
809 }
810
811 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
812                                 const struct dvb_frontend_parameters *params)
813 {
814         /* This function returns the tuned frequency on success, 0 on error */
815         struct tuner_simple_priv *priv = fe->tuner_priv;
816         struct tunertype *tun = priv->tun;
817         static struct tuner_params *t_params;
818         u8 config, cb;
819         u32 div;
820         int ret;
821         unsigned frequency = params->frequency / 62500;
822
823         if (!tun->stepsize) {
824                 /* tuner-core was loaded before the digital tuner was
825                  * configured and somehow picked the wrong tuner type */
826                 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
827                           "without stepsize defined.\n",
828                           priv->type, priv->tun->name);
829                 return 0; /* failure */
830         }
831
832         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
833         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
834         if (ret < 0)
835                 return 0; /* failure */
836
837         div = ((frequency + t_params->iffreq) * 62500 + offset +
838                tun->stepsize/2) / tun->stepsize;
839
840         buf[0] = div >> 8;
841         buf[1] = div & 0xff;
842         buf[2] = config;
843         buf[3] = cb;
844
845         simple_set_dvb(fe, buf, params);
846
847         tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
848                   tun->name, div, buf[0], buf[1], buf[2], buf[3]);
849
850         /* calculate the frequency we set it to */
851         return (div * tun->stepsize) - t_params->iffreq;
852 }
853
854 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
855                                 struct dvb_frontend_parameters *params,
856                                 u8 *buf, int buf_len)
857 {
858         struct tuner_simple_priv *priv = fe->tuner_priv;
859         u32 frequency;
860
861         if (buf_len < 5)
862                 return -EINVAL;
863
864         frequency = simple_dvb_configure(fe, buf+1, params);
865         if (frequency == 0)
866                 return -EINVAL;
867
868         buf[0] = priv->i2c_props.addr;
869
870         priv->frequency = frequency;
871         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
872                 params->u.ofdm.bandwidth : 0;
873
874         return 5;
875 }
876
877 static int simple_dvb_set_params(struct dvb_frontend *fe,
878                                  struct dvb_frontend_parameters *params)
879 {
880         struct tuner_simple_priv *priv = fe->tuner_priv;
881         u32 prev_freq, prev_bw;
882         int ret;
883         u8 buf[5];
884
885         if (priv->i2c_props.adap == NULL)
886                 return -EINVAL;
887
888         prev_freq = priv->frequency;
889         prev_bw   = priv->bandwidth;
890
891         ret = simple_dvb_calc_regs(fe, params, buf, 5);
892         if (ret != 5)
893                 goto fail;
894
895         /* put analog demod in standby when tuning digital */
896         if (fe->ops.analog_ops.standby)
897                 fe->ops.analog_ops.standby(fe);
898
899         if (fe->ops.i2c_gate_ctrl)
900                 fe->ops.i2c_gate_ctrl(fe, 1);
901
902         /* buf[0] contains the i2c address, but *
903          * we already have it in i2c_props.addr */
904         ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
905         if (ret != 4)
906                 goto fail;
907
908         return 0;
909 fail:
910         /* calc_regs sets frequency and bandwidth. if we failed, unset them */
911         priv->frequency = prev_freq;
912         priv->bandwidth = prev_bw;
913
914         return ret;
915 }
916
917 static int simple_init(struct dvb_frontend *fe)
918 {
919         struct tuner_simple_priv *priv = fe->tuner_priv;
920
921         if (priv->i2c_props.adap == NULL)
922                 return -EINVAL;
923
924         if (priv->tun->initdata) {
925                 int ret;
926
927                 if (fe->ops.i2c_gate_ctrl)
928                         fe->ops.i2c_gate_ctrl(fe, 1);
929
930                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
931                                           priv->tun->initdata + 1,
932                                           priv->tun->initdata[0]);
933                 if (ret != priv->tun->initdata[0])
934                         return ret;
935         }
936
937         return 0;
938 }
939
940 static int simple_sleep(struct dvb_frontend *fe)
941 {
942         struct tuner_simple_priv *priv = fe->tuner_priv;
943
944         if (priv->i2c_props.adap == NULL)
945                 return -EINVAL;
946
947         if (priv->tun->sleepdata) {
948                 int ret;
949
950                 if (fe->ops.i2c_gate_ctrl)
951                         fe->ops.i2c_gate_ctrl(fe, 1);
952
953                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
954                                           priv->tun->sleepdata + 1,
955                                           priv->tun->sleepdata[0]);
956                 if (ret != priv->tun->sleepdata[0])
957                         return ret;
958         }
959
960         return 0;
961 }
962
963 static int simple_release(struct dvb_frontend *fe)
964 {
965         struct tuner_simple_priv *priv = fe->tuner_priv;
966
967         mutex_lock(&tuner_simple_list_mutex);
968
969         if (priv)
970                 hybrid_tuner_release_state(priv);
971
972         mutex_unlock(&tuner_simple_list_mutex);
973
974         fe->tuner_priv = NULL;
975
976         return 0;
977 }
978
979 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
980 {
981         struct tuner_simple_priv *priv = fe->tuner_priv;
982         *frequency = priv->frequency;
983         return 0;
984 }
985
986 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
987 {
988         struct tuner_simple_priv *priv = fe->tuner_priv;
989         *bandwidth = priv->bandwidth;
990         return 0;
991 }
992
993 static struct dvb_tuner_ops simple_tuner_ops = {
994         .init              = simple_init,
995         .sleep             = simple_sleep,
996         .set_analog_params = simple_set_params,
997         .set_params        = simple_dvb_set_params,
998         .calc_regs         = simple_dvb_calc_regs,
999         .release           = simple_release,
1000         .get_frequency     = simple_get_frequency,
1001         .get_bandwidth     = simple_get_bandwidth,
1002         .get_status        = simple_get_status,
1003         .get_rf_strength   = simple_get_rf_strength,
1004 };
1005
1006 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1007                                          struct i2c_adapter *i2c_adap,
1008                                          u8 i2c_addr,
1009                                          unsigned int type)
1010 {
1011         struct tuner_simple_priv *priv = NULL;
1012         int instance;
1013
1014         if (type >= tuner_count) {
1015                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1016                        __func__, type, tuner_count-1);
1017                 return NULL;
1018         }
1019
1020         /* If i2c_adap is set, check that the tuner is at the correct address.
1021          * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1022          * by the digital demod via calc_regs.
1023          */
1024         if (i2c_adap != NULL) {
1025                 u8 b[1];
1026                 struct i2c_msg msg = {
1027                         .addr = i2c_addr, .flags = I2C_M_RD,
1028                         .buf = b, .len = 1,
1029                 };
1030
1031                 if (fe->ops.i2c_gate_ctrl)
1032                         fe->ops.i2c_gate_ctrl(fe, 1);
1033
1034                 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1035                         printk(KERN_WARNING "tuner-simple %d-%04x: "
1036                                "unable to probe %s, proceeding anyway.",
1037                                i2c_adapter_id(i2c_adap), i2c_addr,
1038                                tuners[type].name);
1039
1040                 if (fe->ops.i2c_gate_ctrl)
1041                         fe->ops.i2c_gate_ctrl(fe, 0);
1042         }
1043
1044         mutex_lock(&tuner_simple_list_mutex);
1045
1046         instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1047                                               hybrid_tuner_instance_list,
1048                                               i2c_adap, i2c_addr,
1049                                               "tuner-simple");
1050         switch (instance) {
1051         case 0:
1052                 mutex_unlock(&tuner_simple_list_mutex);
1053                 return NULL;
1054         case 1:
1055                 fe->tuner_priv = priv;
1056
1057                 priv->type = type;
1058                 priv->tun  = &tuners[type];
1059                 priv->nr   = simple_devcount++;
1060                 break;
1061         default:
1062                 fe->tuner_priv = priv;
1063                 break;
1064         }
1065
1066         mutex_unlock(&tuner_simple_list_mutex);
1067
1068         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1069                sizeof(struct dvb_tuner_ops));
1070
1071         if (type != priv->type)
1072                 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1073                             type, priv->type, priv->tun->name);
1074         else
1075                 tuner_info("type set to %d (%s)\n",
1076                            priv->type, priv->tun->name);
1077
1078         if ((debug) || ((atv_input[priv->nr] > 0) ||
1079                         (dtv_input[priv->nr] > 0))) {
1080                 if (0 == atv_input[priv->nr])
1081                         tuner_info("tuner %d atv rf input will be "
1082                                    "autoselected\n", priv->nr);
1083                 else
1084                         tuner_info("tuner %d atv rf input will be "
1085                                    "set to input %d (insmod option)\n",
1086                                    priv->nr, atv_input[priv->nr]);
1087                 if (0 == dtv_input[priv->nr])
1088                         tuner_info("tuner %d dtv rf input will be "
1089                                    "autoselected\n", priv->nr);
1090                 else
1091                         tuner_info("tuner %d dtv rf input will be "
1092                                    "set to input %d (insmod option)\n",
1093                                    priv->nr, dtv_input[priv->nr]);
1094         }
1095
1096         strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1097                 sizeof(fe->ops.tuner_ops.info.name));
1098
1099         return fe;
1100 }
1101 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1102
1103 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1104 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1105 MODULE_LICENSE("GPL");
1106
1107 /*
1108  * Overrides for Emacs so that we follow Linus's tabbing style.
1109  * ---------------------------------------------------------------------------
1110  * Local variables:
1111  * c-basic-offset: 8
1112  * End:
1113  */