Pull video into release branch
[linux-2.6] / drivers / media / video / tuner-simple.c
1 /*
2  *
3  * i2c tv tuner chip device driver
4  * controls all those simple 4-control-bytes style tuners.
5  */
6 #include <linux/delay.h>
7 #include <linux/i2c.h>
8 #include <linux/videodev.h>
9 #include <media/tuner.h>
10 #include <media/v4l2-common.h>
11 #include <media/tuner-types.h>
12 #include "tuner-driver.h"
13
14 static int offset = 0;
15 module_param(offset, int, 0664);
16 MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
17
18 /* ---------------------------------------------------------------------- */
19
20 /* tv standard selection for Temic 4046 FM5
21    this value takes the low bits of control byte 2
22    from datasheet Rev.01, Feb.00
23      standard     BG      I       L       L2      D
24      picture IF   38.9    38.9    38.9    33.95   38.9
25      sound 1      33.4    32.9    32.4    40.45   32.4
26      sound 2      33.16
27      NICAM        33.05   32.348  33.05           33.05
28  */
29 #define TEMIC_SET_PAL_I         0x05
30 #define TEMIC_SET_PAL_DK        0x09
31 #define TEMIC_SET_PAL_L         0x0a // SECAM ?
32 #define TEMIC_SET_PAL_L2        0x0b // change IF !
33 #define TEMIC_SET_PAL_BG        0x0c
34
35 /* tv tuner system standard selection for Philips FQ1216ME
36    this value takes the low bits of control byte 2
37    from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
38      standard           BG      DK      I       L       L`
39      picture carrier    38.90   38.90   38.90   38.90   33.95
40      colour             34.47   34.47   34.47   34.47   38.38
41      sound 1            33.40   32.40   32.90   32.40   40.45
42      sound 2            33.16   -       -       -       -
43      NICAM              33.05   33.05   32.35   33.05   39.80
44  */
45 #define PHILIPS_SET_PAL_I       0x01 /* Bit 2 always zero !*/
46 #define PHILIPS_SET_PAL_BGDK    0x09
47 #define PHILIPS_SET_PAL_L2      0x0a
48 #define PHILIPS_SET_PAL_L       0x0b
49
50 /* system switching for Philips FI1216MF MK2
51    from datasheet "1996 Jul 09",
52     standard         BG     L      L'
53     picture carrier  38.90  38.90  33.95
54     colour           34.47  34.37  38.38
55     sound 1          33.40  32.40  40.45
56     sound 2          33.16  -      -
57     NICAM            33.05  33.05  39.80
58  */
59 #define PHILIPS_MF_SET_STD_BG   0x01 /* Bit 2 must be zero, Bit 3 is system output */
60 #define PHILIPS_MF_SET_STD_L    0x03 /* Used on Secam France */
61 #define PHILIPS_MF_SET_STD_LC   0x02 /* Used on SECAM L' */
62
63 /* Control byte */
64
65 #define TUNER_RATIO_MASK        0x06 /* Bit cb1:cb2 */
66 #define TUNER_RATIO_SELECT_50   0x00
67 #define TUNER_RATIO_SELECT_32   0x02
68 #define TUNER_RATIO_SELECT_166  0x04
69 #define TUNER_RATIO_SELECT_62   0x06
70
71 #define TUNER_CHARGE_PUMP       0x40  /* Bit cb6 */
72
73 /* Status byte */
74
75 #define TUNER_POR         0x80
76 #define TUNER_FL          0x40
77 #define TUNER_MODE        0x38
78 #define TUNER_AFC         0x07
79 #define TUNER_SIGNAL      0x07
80 #define TUNER_STEREO      0x10
81
82 #define TUNER_PLL_LOCKED   0x40
83 #define TUNER_STEREO_MK3   0x04
84
85 /* ---------------------------------------------------------------------- */
86
87 static int tuner_getstatus(struct i2c_client *c)
88 {
89         unsigned char byte;
90
91         if (1 != i2c_master_recv(c,&byte,1))
92                 return 0;
93
94         return byte;
95 }
96
97 static int tuner_signal(struct i2c_client *c)
98 {
99         return (tuner_getstatus(c) & TUNER_SIGNAL) << 13;
100 }
101
102 static int tuner_stereo(struct i2c_client *c)
103 {
104         int stereo, status;
105         struct tuner *t = i2c_get_clientdata(c);
106
107         status = tuner_getstatus (c);
108
109         switch (t->type) {
110                 case TUNER_PHILIPS_FM1216ME_MK3:
111                 case TUNER_PHILIPS_FM1236_MK3:
112                 case TUNER_PHILIPS_FM1256_IH3:
113                 case TUNER_LG_NTSC_TAPE:
114                         stereo = ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
115                         break;
116                 default:
117                         stereo = status & TUNER_STEREO;
118         }
119
120         return stereo;
121 }
122
123
124 /* ---------------------------------------------------------------------- */
125
126 static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
127 {
128         struct tuner *t = i2c_get_clientdata(c);
129         u8 config, cb, tuneraddr;
130         u16 div;
131         struct tunertype *tun;
132         u8 buffer[4];
133         int rc, IFPCoff, i, j;
134         enum param_type desired_type;
135         struct tuner_params *params;
136
137         tun = &tuners[t->type];
138
139         /* IFPCoff = Video Intermediate Frequency - Vif:
140                 940  =16*58.75  NTSC/J (Japan)
141                 732  =16*45.75  M/N STD
142                 704  =16*44     ATSC (at DVB code)
143                 632  =16*39.50  I U.K.
144                 622.4=16*38.90  B/G D/K I, L STD
145                 592  =16*37.00  D China
146                 590  =16.36.875 B Australia
147                 543.2=16*33.95  L' STD
148                 171.2=16*10.70  FM Radio (at set_radio_freq)
149         */
150
151         if (t->std == V4L2_STD_NTSC_M_JP) {
152                 IFPCoff      = 940;
153                 desired_type = TUNER_PARAM_TYPE_NTSC;
154         } else if ((t->std & V4L2_STD_MN) &&
155                   !(t->std & ~V4L2_STD_MN)) {
156                 IFPCoff      = 732;
157                 desired_type = TUNER_PARAM_TYPE_NTSC;
158         } else if (t->std == V4L2_STD_SECAM_LC) {
159                 IFPCoff      = 543;
160                 desired_type = TUNER_PARAM_TYPE_SECAM;
161         } else {
162                 IFPCoff      = 623;
163                 desired_type = TUNER_PARAM_TYPE_PAL;
164         }
165
166         for (j = 0; j < tun->count-1; j++) {
167                 if (desired_type != tun->params[j].type)
168                         continue;
169                 break;
170         }
171         /* use default tuner_params if desired_type not available */
172         if (desired_type != tun->params[j].type) {
173                 tuner_dbg("IFPCoff = %d: tuner_params undefined for tuner %d\n",
174                           IFPCoff,t->type);
175                 j = 0;
176         }
177         params = &tun->params[j];
178
179         for (i = 0; i < params->count; i++) {
180                 if (freq > params->ranges[i].limit)
181                         continue;
182                 break;
183         }
184         if (i == params->count) {
185                 tuner_dbg("TV frequency out of range (%d > %d)",
186                                 freq, params->ranges[i - 1].limit);
187                 freq = params->ranges[--i].limit;
188         }
189         config = params->ranges[i].config;
190         cb     = params->ranges[i].cb;
191         /*  i == 0 -> VHF_LO
192          *  i == 1 -> VHF_HI
193          *  i == 2 -> UHF     */
194         tuner_dbg("tv: param %d, range %d\n",j,i);
195
196         div=freq + IFPCoff + offset;
197
198         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
199                                         freq / 16, freq % 16 * 100 / 16,
200                                         IFPCoff / 16, IFPCoff % 16 * 100 / 16,
201                                         offset / 16, offset % 16 * 100 / 16,
202                                         div);
203
204         /* tv norm specific stuff for multi-norm tuners */
205         switch (t->type) {
206         case TUNER_PHILIPS_SECAM: // FI1216MF
207                 /* 0x01 -> ??? no change ??? */
208                 /* 0x02 -> PAL BDGHI / SECAM L */
209                 /* 0x04 -> ??? PAL others / SECAM others ??? */
210                 cb &= ~0x03;
211                 if (t->std & V4L2_STD_SECAM_L) //also valid for V4L2_STD_SECAM
212                         cb |= PHILIPS_MF_SET_STD_L;
213                 else if (t->std & V4L2_STD_SECAM_LC)
214                         cb |= PHILIPS_MF_SET_STD_LC;
215                 else /* V4L2_STD_B|V4L2_STD_GH */
216                         cb |= PHILIPS_MF_SET_STD_BG;
217                 break;
218
219         case TUNER_TEMIC_4046FM5:
220                 cb &= ~0x0f;
221
222                 if (t->std & V4L2_STD_PAL_BG) {
223                         cb |= TEMIC_SET_PAL_BG;
224
225                 } else if (t->std & V4L2_STD_PAL_I) {
226                         cb |= TEMIC_SET_PAL_I;
227
228                 } else if (t->std & V4L2_STD_PAL_DK) {
229                         cb |= TEMIC_SET_PAL_DK;
230
231                 } else if (t->std & V4L2_STD_SECAM_L) {
232                         cb |= TEMIC_SET_PAL_L;
233
234                 }
235                 break;
236
237         case TUNER_PHILIPS_FQ1216ME:
238                 cb &= ~0x0f;
239
240                 if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
241                         cb |= PHILIPS_SET_PAL_BGDK;
242
243                 } else if (t->std & V4L2_STD_PAL_I) {
244                         cb |= PHILIPS_SET_PAL_I;
245
246                 } else if (t->std & V4L2_STD_SECAM_L) {
247                         cb |= PHILIPS_SET_PAL_L;
248
249                 }
250                 break;
251
252         case TUNER_PHILIPS_ATSC:
253                 /* 0x00 -> ATSC antenna input 1 */
254                 /* 0x01 -> ATSC antenna input 2 */
255                 /* 0x02 -> NTSC antenna input 1 */
256                 /* 0x03 -> NTSC antenna input 2 */
257                 cb &= ~0x03;
258                 if (!(t->std & V4L2_STD_ATSC))
259                         cb |= 2;
260                 /* FIXME: input */
261                 break;
262
263         case TUNER_MICROTUNE_4042FI5:
264                 /* Set the charge pump for fast tuning */
265                 config |= TUNER_CHARGE_PUMP;
266                 break;
267
268         case TUNER_PHILIPS_TUV1236D:
269                 /* 0x40 -> ATSC antenna input 1 */
270                 /* 0x48 -> ATSC antenna input 2 */
271                 /* 0x00 -> NTSC antenna input 1 */
272                 /* 0x08 -> NTSC antenna input 2 */
273                 buffer[0] = 0x14;
274                 buffer[1] = 0x00;
275                 buffer[2] = 0x17;
276                 buffer[3] = 0x00;
277                 cb &= ~0x40;
278                 if (t->std & V4L2_STD_ATSC) {
279                         cb |= 0x40;
280                         buffer[1] = 0x04;
281                 }
282                 /* set to the correct mode (analog or digital) */
283                 tuneraddr = c->addr;
284                 c->addr = 0x0a;
285                 if (2 != (rc = i2c_master_send(c,&buffer[0],2)))
286                         tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
287                 if (2 != (rc = i2c_master_send(c,&buffer[2],2)))
288                         tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
289                 c->addr = tuneraddr;
290                 /* FIXME: input */
291                 break;
292         }
293
294         if (params->cb_first_if_lower_freq && div < t->last_div) {
295                 buffer[0] = config;
296                 buffer[1] = cb;
297                 buffer[2] = (div>>8) & 0x7f;
298                 buffer[3] = div      & 0xff;
299         } else {
300                 buffer[0] = (div>>8) & 0x7f;
301                 buffer[1] = div      & 0xff;
302                 buffer[2] = config;
303                 buffer[3] = cb;
304         }
305         t->last_div = div;
306         if (params->has_tda9887) {
307                 int config = 0;
308                 int is_secam_l = (t->std & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) &&
309                         !(t->std & ~(V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC));
310
311                 if (t->std == V4L2_STD_SECAM_LC) {
312                         if (params->port1_active ^ params->port1_invert_for_secam_lc)
313                                 config |= TDA9887_PORT1_ACTIVE;
314                         if (params->port2_active ^ params->port2_invert_for_secam_lc)
315                                 config |= TDA9887_PORT2_ACTIVE;
316                 }
317                 else {
318                         if (params->port1_active)
319                                 config |= TDA9887_PORT1_ACTIVE;
320                         if (params->port2_active)
321                                 config |= TDA9887_PORT2_ACTIVE;
322                 }
323                 if (params->intercarrier_mode)
324                         config |= TDA9887_INTERCARRIER;
325                 if (is_secam_l) {
326                         if (i == 0 && params->default_top_secam_low)
327                                 config |= TDA9887_TOP(params->default_top_secam_low);
328                         else if (i == 1 && params->default_top_secam_mid)
329                                 config |= TDA9887_TOP(params->default_top_secam_mid);
330                         else if (params->default_top_secam_high)
331                                 config |= TDA9887_TOP(params->default_top_secam_high);
332                 }
333                 else {
334                         if (i == 0 && params->default_top_low)
335                                 config |= TDA9887_TOP(params->default_top_low);
336                         else if (i == 1 && params->default_top_mid)
337                                 config |= TDA9887_TOP(params->default_top_mid);
338                         else if (params->default_top_high)
339                                 config |= TDA9887_TOP(params->default_top_high);
340                 }
341                 if (params->default_pll_gating_18)
342                         config |= TDA9887_GATING_18;
343                 i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
344         }
345         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
346                   buffer[0],buffer[1],buffer[2],buffer[3]);
347
348         if (4 != (rc = i2c_master_send(c,buffer,4)))
349                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
350
351         switch (t->type) {
352         case TUNER_LG_TDVS_H06XF:
353                 /* Set the Auxiliary Byte. */
354                 buffer[0] = buffer[2];
355                 buffer[0] &= ~0x20;
356                 buffer[0] |= 0x18;
357                 buffer[1] = 0x20;
358                 tuner_dbg("tv 0x%02x 0x%02x\n",buffer[0],buffer[1]);
359
360                 if (2 != (rc = i2c_master_send(c,buffer,2)))
361                         tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
362                 break;
363         case TUNER_MICROTUNE_4042FI5:
364         {
365                 // FIXME - this may also work for other tuners
366                 unsigned long timeout = jiffies + msecs_to_jiffies(1);
367                 u8 status_byte = 0;
368
369                 /* Wait until the PLL locks */
370                 for (;;) {
371                         if (time_after(jiffies,timeout))
372                                 return;
373                         if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
374                                 tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
375                                 break;
376                         }
377                         if (status_byte & TUNER_PLL_LOCKED)
378                                 break;
379                         udelay(10);
380                 }
381
382                 /* Set the charge pump for optimized phase noise figure */
383                 config &= ~TUNER_CHARGE_PUMP;
384                 buffer[0] = (div>>8) & 0x7f;
385                 buffer[1] = div      & 0xff;
386                 buffer[2] = config;
387                 buffer[3] = cb;
388                 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
389                           buffer[0],buffer[1],buffer[2],buffer[3]);
390
391                 if (4 != (rc = i2c_master_send(c,buffer,4)))
392                         tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
393                 break;
394         }
395         }
396 }
397
398 static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
399 {
400         struct tunertype *tun;
401         struct tuner *t = i2c_get_clientdata(c);
402         u8 buffer[4];
403         u16 div;
404         int rc, j;
405         enum param_type desired_type = TUNER_PARAM_TYPE_RADIO;
406         struct tuner_params *params;
407
408         tun = &tuners[t->type];
409
410         for (j = 0; j < tun->count-1; j++) {
411                 if (desired_type != tun->params[j].type)
412                         continue;
413                 break;
414         }
415         /* use default tuner_params if desired_type not available */
416         if (desired_type != tun->params[j].type)
417                 j = 0;
418
419         div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
420         params = &tun->params[j];
421         buffer[2] = (params->ranges[0].config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */
422
423         switch (t->type) {
424         case TUNER_TENA_9533_DI:
425         case TUNER_YMEC_TVF_5533MF:
426                 tuner_dbg ("This tuner doesn't have FM. Most cards has a TEA5767 for FM\n");
427                 return;
428         case TUNER_PHILIPS_FM1216ME_MK3:
429         case TUNER_PHILIPS_FM1236_MK3:
430         case TUNER_PHILIPS_FMD1216ME_MK3:
431         case TUNER_LG_NTSC_TAPE:
432                 buffer[3] = 0x19;
433                 break;
434         case TUNER_TNF_5335MF:
435                 buffer[3] = 0x11;
436                 break;
437         case TUNER_PHILIPS_FM1256_IH3:
438                 div = (20 * freq) / 16000 + (int)(33.3 * 20);  /* IF 33.3 MHz */
439                 buffer[3] = 0x19;
440                 break;
441         case TUNER_LG_PAL_FM:
442                 buffer[3] = 0xa5;
443                 break;
444         case TUNER_MICROTUNE_4049FM5:
445                 div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
446                 buffer[3] = 0xa4;
447                 break;
448         default:
449                 buffer[3] = 0xa4;
450                 break;
451         }
452         if (params->cb_first_if_lower_freq && div < t->last_div) {
453                 buffer[0] = buffer[2];
454                 buffer[1] = buffer[3];
455                 buffer[2] = (div>>8) & 0x7f;
456                 buffer[3] = div      & 0xff;
457         } else {
458                 buffer[0] = (div>>8) & 0x7f;
459                 buffer[1] = div      & 0xff;
460         }
461
462         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
463                buffer[0],buffer[1],buffer[2],buffer[3]);
464         t->last_div = div;
465
466         if (params->has_tda9887) {
467                 int config = 0;
468                 if (params->port1_active && !params->port1_fm_high_sensitivity)
469                         config |= TDA9887_PORT1_ACTIVE;
470                 if (params->port2_active && !params->port2_fm_high_sensitivity)
471                         config |= TDA9887_PORT2_ACTIVE;
472                 if (params->intercarrier_mode)
473                         config |= TDA9887_INTERCARRIER;
474 /*              if (params->port1_set_for_fm_mono)
475                         config &= ~TDA9887_PORT1_ACTIVE;*/
476                 if (params->fm_gain_normal)
477                         config |= TDA9887_GAIN_NORMAL;
478                 i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
479         }
480         if (4 != (rc = i2c_master_send(c,buffer,4)))
481                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
482 }
483
484 static struct tuner_operations simple_tuner_ops = {
485         .set_tv_freq    = default_set_tv_freq,
486         .set_radio_freq = default_set_radio_freq,
487         .has_signal     = tuner_signal,
488         .is_stereo      = tuner_stereo,
489 };
490
491 int default_tuner_init(struct i2c_client *c)
492 {
493         struct tuner *t = i2c_get_clientdata(c);
494
495         tuner_info("type set to %d (%s)\n",
496                    t->type, tuners[t->type].name);
497         strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
498
499         memcpy(&t->ops, &simple_tuner_ops, sizeof(struct tuner_operations));
500
501         return 0;
502 }
503
504 /*
505  * Overrides for Emacs so that we follow Linus's tabbing style.
506  * ---------------------------------------------------------------------------
507  * Local variables:
508  * c-basic-offset: 8
509  * End:
510  */