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Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
[wrt350n-kernel.git] / drivers / media / video / tuner-simple.c
blobc1db576696c6d34288e2b4cc6a596c4e730f9dc9
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 = 0;
17 module_param(debug, int, 0644);
18 MODULE_PARM_DESC(debug, "enable verbose debug messages");
19
20 #define PREFIX "tuner-simple"
21
22 static int offset = 0;
23 module_param(offset, int, 0664);
24 MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
25
26 /* ---------------------------------------------------------------------- */
27
28 /* tv standard selection for Temic 4046 FM5
29 this value takes the low bits of control byte 2
30 from datasheet Rev.01, Feb.00
31 standard BG I L L2 D
32 picture IF 38.9 38.9 38.9 33.95 38.9
33 sound 1 33.4 32.9 32.4 40.45 32.4
34 sound 2 33.16
35 NICAM 33.05 32.348 33.05 33.05
36 */
37 #define TEMIC_SET_PAL_I 0x05
38 #define TEMIC_SET_PAL_DK 0x09
39 #define TEMIC_SET_PAL_L 0x0a // SECAM ?
40 #define TEMIC_SET_PAL_L2 0x0b // change IF !
41 #define TEMIC_SET_PAL_BG 0x0c
42
43 /* tv tuner system standard selection for Philips FQ1216ME
44 this value takes the low bits of control byte 2
45 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
46 standard BG DK I L L`
47 picture carrier 38.90 38.90 38.90 38.90 33.95
48 colour 34.47 34.47 34.47 34.47 38.38
49 sound 1 33.40 32.40 32.90 32.40 40.45
50 sound 2 33.16 - - - -
51 NICAM 33.05 33.05 32.35 33.05 39.80
52 */
53 #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
54 #define PHILIPS_SET_PAL_BGDK 0x09
55 #define PHILIPS_SET_PAL_L2 0x0a
56 #define PHILIPS_SET_PAL_L 0x0b
57
58 /* system switching for Philips FI1216MF MK2
59 from datasheet "1996 Jul 09",
60 standard BG L L'
61 picture carrier 38.90 38.90 33.95
62 colour 34.47 34.37 38.38
63 sound 1 33.40 32.40 40.45
64 sound 2 33.16 - -
65 NICAM 33.05 33.05 39.80
66 */
67 #define PHILIPS_MF_SET_STD_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
68 #define PHILIPS_MF_SET_STD_L 0x03 /* Used on Secam France */
69 #define PHILIPS_MF_SET_STD_LC 0x02 /* Used on SECAM L' */
70
71 /* Control byte */
72
73 #define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
74 #define TUNER_RATIO_SELECT_50 0x00
75 #define TUNER_RATIO_SELECT_32 0x02
76 #define TUNER_RATIO_SELECT_166 0x04
77 #define TUNER_RATIO_SELECT_62 0x06
78
79 #define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
80
81 /* Status byte */
82
83 #define TUNER_POR 0x80
84 #define TUNER_FL 0x40
85 #define TUNER_MODE 0x38
86 #define TUNER_AFC 0x07
87 #define TUNER_SIGNAL 0x07
88 #define TUNER_STEREO 0x10
89
90 #define TUNER_PLL_LOCKED 0x40
91 #define TUNER_STEREO_MK3 0x04
92
93 struct tuner_simple_priv {
94 u16 last_div;
95 struct tuner_i2c_props i2c_props;
96
97 unsigned int type;
98 struct tunertype *tun;
99
100 u32 frequency;
101 };
102
103 /* ---------------------------------------------------------------------- */
104
105 static int tuner_read_status(struct dvb_frontend *fe)
106 {
107 struct tuner_simple_priv *priv = fe->tuner_priv;
108 unsigned char byte;
109
110 if (1 != tuner_i2c_xfer_recv(&priv->i2c_props,&byte,1))
111 return 0;
112
113 return byte;
114 }
115
116 static inline int tuner_signal(const int status)
117 {
118 return (status & TUNER_SIGNAL) << 13;
119 }
120
121 static inline int tuner_stereo(const int type, const int status)
122 {
123 switch (type) {
124 case TUNER_PHILIPS_FM1216ME_MK3:
125 case TUNER_PHILIPS_FM1236_MK3:
126 case TUNER_PHILIPS_FM1256_IH3:
127 case TUNER_LG_NTSC_TAPE:
128 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
129 default:
130 return status & TUNER_STEREO;
131 }
132 }
133
134 static inline int tuner_islocked(const int status)
135 {
136 return (status & TUNER_FL);
137 }
138
139 static inline int tuner_afcstatus(const int status)
140 {
141 return (status & TUNER_AFC) - 2;
142 }
143
144
145 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
146 {
147 struct tuner_simple_priv *priv = fe->tuner_priv;
148 int tuner_status = tuner_read_status(fe);
149
150 *status = 0;
151
152 if (tuner_islocked(tuner_status))
153 *status = TUNER_STATUS_LOCKED;
154 if (tuner_stereo(priv->type, tuner_status))
155 *status |= TUNER_STATUS_STEREO;
156
157 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
158
159 return 0;
160 }
161
162 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
163 {
164 struct tuner_simple_priv *priv = fe->tuner_priv;
165 int signal = tuner_signal(tuner_read_status(fe));
166
167 *strength = signal;
168
169 tuner_dbg("Signal strength: %d\n", signal);
170
171 return 0;
172 }
173
174 /* ---------------------------------------------------------------------- */
175
176 static int simple_set_tv_freq(struct dvb_frontend *fe,
177 struct analog_parameters *params)
178 {
179 struct tuner_simple_priv *priv = fe->tuner_priv;
180 u8 config, cb, tuneraddr;
181 u16 div;
182 struct tunertype *tun;
183 u8 buffer[4];
184 int rc, IFPCoff, i, j;
185 enum param_type desired_type;
186 struct tuner_params *t_params;
187
188 tun = priv->tun;
189
190 /* IFPCoff = Video Intermediate Frequency - Vif:
191 940 =16*58.75 NTSC/J (Japan)
192 732 =16*45.75 M/N STD
193 704 =16*44 ATSC (at DVB code)
194 632 =16*39.50 I U.K.
195 622.4=16*38.90 B/G D/K I, L STD
196 592 =16*37.00 D China
197 590 =16.36.875 B Australia
198 543.2=16*33.95 L' STD
199 171.2=16*10.70 FM Radio (at set_radio_freq)
200 */
201
202 if (params->std == V4L2_STD_NTSC_M_JP) {
203 IFPCoff = 940;
204 desired_type = TUNER_PARAM_TYPE_NTSC;
205 } else if ((params->std & V4L2_STD_MN) &&
206 !(params->std & ~V4L2_STD_MN)) {
207 IFPCoff = 732;
208 desired_type = TUNER_PARAM_TYPE_NTSC;
209 } else if (params->std == V4L2_STD_SECAM_LC) {
210 IFPCoff = 543;
211 desired_type = TUNER_PARAM_TYPE_SECAM;
212 } else {
213 IFPCoff = 623;
214 desired_type = TUNER_PARAM_TYPE_PAL;
215 }
216
217 for (j = 0; j < tun->count-1; j++) {
218 if (desired_type != tun->params[j].type)
219 continue;
220 break;
221 }
222 /* use default tuner_t_params if desired_type not available */
223 if (desired_type != tun->params[j].type) {
224 tuner_dbg("IFPCoff = %d: tuner_t_params undefined for tuner %d\n",
225 IFPCoff, priv->type);
226 j = 0;
227 }
228 t_params = &tun->params[j];
229
230 for (i = 0; i < t_params->count; i++) {
231 if (params->frequency > t_params->ranges[i].limit)
232 continue;
233 break;
234 }
235 if (i == t_params->count) {
236 tuner_dbg("TV frequency out of range (%d > %d)",
237 params->frequency, t_params->ranges[i - 1].limit);
238 params->frequency = t_params->ranges[--i].limit;
239 }
240 config = t_params->ranges[i].config;
241 cb = t_params->ranges[i].cb;
242 /* i == 0 -> VHF_LO
243 * i == 1 -> VHF_HI
244 * i == 2 -> UHF */
245 tuner_dbg("tv: param %d, range %d\n",j,i);
246
247 div=params->frequency + IFPCoff + offset;
248
249 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
250 params->frequency / 16, params->frequency % 16 * 100 / 16,
251 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
252 offset / 16, offset % 16 * 100 / 16,
253 div);
254
255 /* tv norm specific stuff for multi-norm tuners */
256 switch (priv->type) {
257 case TUNER_PHILIPS_SECAM: // FI1216MF
258 /* 0x01 -> ??? no change ??? */
259 /* 0x02 -> PAL BDGHI / SECAM L */
260 /* 0x04 -> ??? PAL others / SECAM others ??? */
261 cb &= ~0x03;
262 if (params->std & V4L2_STD_SECAM_L) //also valid for V4L2_STD_SECAM
263 cb |= PHILIPS_MF_SET_STD_L;
264 else if (params->std & V4L2_STD_SECAM_LC)
265 cb |= PHILIPS_MF_SET_STD_LC;
266 else /* V4L2_STD_B|V4L2_STD_GH */
267 cb |= PHILIPS_MF_SET_STD_BG;
268 break;
269
270 case TUNER_TEMIC_4046FM5:
271 cb &= ~0x0f;
272
273 if (params->std & V4L2_STD_PAL_BG) {
274 cb |= TEMIC_SET_PAL_BG;
275
276 } else if (params->std & V4L2_STD_PAL_I) {
277 cb |= TEMIC_SET_PAL_I;
278
279 } else if (params->std & V4L2_STD_PAL_DK) {
280 cb |= TEMIC_SET_PAL_DK;
281
282 } else if (params->std & V4L2_STD_SECAM_L) {
283 cb |= TEMIC_SET_PAL_L;
284
285 }
286 break;
287
288 case TUNER_PHILIPS_FQ1216ME:
289 cb &= ~0x0f;
290
291 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
292 cb |= PHILIPS_SET_PAL_BGDK;
293
294 } else if (params->std & V4L2_STD_PAL_I) {
295 cb |= PHILIPS_SET_PAL_I;
296
297 } else if (params->std & V4L2_STD_SECAM_L) {
298 cb |= PHILIPS_SET_PAL_L;
299
300 }
301 break;
302
303 case TUNER_PHILIPS_ATSC:
304 /* 0x00 -> ATSC antenna input 1 */
305 /* 0x01 -> ATSC antenna input 2 */
306 /* 0x02 -> NTSC antenna input 1 */
307 /* 0x03 -> NTSC antenna input 2 */
308 cb &= ~0x03;
309 if (!(params->std & V4L2_STD_ATSC))
310 cb |= 2;
311 /* FIXME: input */
312 break;
313
314 case TUNER_MICROTUNE_4042FI5:
315 /* Set the charge pump for fast tuning */
316 config |= TUNER_CHARGE_PUMP;
317 break;
318
319 case TUNER_PHILIPS_TUV1236D:
320 /* 0x40 -> ATSC antenna input 1 */
321 /* 0x48 -> ATSC antenna input 2 */
322 /* 0x00 -> NTSC antenna input 1 */
323 /* 0x08 -> NTSC antenna input 2 */
324 buffer[0] = 0x14;
325 buffer[1] = 0x00;
326 buffer[2] = 0x17;
327 buffer[3] = 0x00;
328 cb &= ~0x40;
329 if (params->std & V4L2_STD_ATSC) {
330 cb |= 0x40;
331 buffer[1] = 0x04;
332 }
333 /* set to the correct mode (analog or digital) */
334 tuneraddr = priv->i2c_props.addr;
335 priv->i2c_props.addr = 0x0a;
336 if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,&buffer[0],2)))
337 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
338 if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,&buffer[2],2)))
339 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
340 priv->i2c_props.addr = tuneraddr;
341 /* FIXME: input */
342 break;
343 }
344
345 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
346 buffer[0] = config;
347 buffer[1] = cb;
348 buffer[2] = (div>>8) & 0x7f;
349 buffer[3] = div & 0xff;
350 } else {
351 buffer[0] = (div>>8) & 0x7f;
352 buffer[1] = div & 0xff;
353 buffer[2] = config;
354 buffer[3] = cb;
355 }
356 priv->last_div = div;
357 if (t_params->has_tda9887) {
358 struct v4l2_priv_tun_config tda9887_cfg;
359 int config = 0;
360 int is_secam_l = (params->std & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) &&
361 !(params->std & ~(V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC));
362
363 tda9887_cfg.tuner = TUNER_TDA9887;
364 tda9887_cfg.priv = &config;
365
366 if (params->std == V4L2_STD_SECAM_LC) {
367 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
368 config |= TDA9887_PORT1_ACTIVE;
369 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
370 config |= TDA9887_PORT2_ACTIVE;
371 }
372 else {
373 if (t_params->port1_active)
374 config |= TDA9887_PORT1_ACTIVE;
375 if (t_params->port2_active)
376 config |= TDA9887_PORT2_ACTIVE;
377 }
378 if (t_params->intercarrier_mode)
379 config |= TDA9887_INTERCARRIER;
380 if (is_secam_l) {
381 if (i == 0 && t_params->default_top_secam_low)
382 config |= TDA9887_TOP(t_params->default_top_secam_low);
383 else if (i == 1 && t_params->default_top_secam_mid)
384 config |= TDA9887_TOP(t_params->default_top_secam_mid);
385 else if (t_params->default_top_secam_high)
386 config |= TDA9887_TOP(t_params->default_top_secam_high);
387 }
388 else {
389 if (i == 0 && t_params->default_top_low)
390 config |= TDA9887_TOP(t_params->default_top_low);
391 else if (i == 1 && t_params->default_top_mid)
392 config |= TDA9887_TOP(t_params->default_top_mid);
393 else if (t_params->default_top_high)
394 config |= TDA9887_TOP(t_params->default_top_high);
395 }
396 if (t_params->default_pll_gating_18)
397 config |= TDA9887_GATING_18;
398 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
399 &tda9887_cfg);
400 }
401 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
402 buffer[0],buffer[1],buffer[2],buffer[3]);
403
404 if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
405 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
406
407 switch (priv->type) {
408 case TUNER_LG_TDVS_H06XF:
409 /* Set the Auxiliary Byte. */
410 buffer[0] = buffer[2];
411 buffer[0] &= ~0x20;
412 buffer[0] |= 0x18;
413 buffer[1] = 0x20;
414 tuner_dbg("tv 0x%02x 0x%02x\n",buffer[0],buffer[1]);
415
416 if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,2)))
417 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
418 break;
419 case TUNER_MICROTUNE_4042FI5:
420 {
421 // FIXME - this may also work for other tuners
422 unsigned long timeout = jiffies + msecs_to_jiffies(1);
423 u8 status_byte = 0;
424
425 /* Wait until the PLL locks */
426 for (;;) {
427 if (time_after(jiffies,timeout))
428 return 0;
429 if (1 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props,&status_byte,1))) {
430 tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
431 break;
432 }
433 if (status_byte & TUNER_PLL_LOCKED)
434 break;
435 udelay(10);
436 }
437
438 /* Set the charge pump for optimized phase noise figure */
439 config &= ~TUNER_CHARGE_PUMP;
440 buffer[0] = (div>>8) & 0x7f;
441 buffer[1] = div & 0xff;
442 buffer[2] = config;
443 buffer[3] = cb;
444 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
445 buffer[0],buffer[1],buffer[2],buffer[3]);
446
447 if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
448 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
449 break;
450 }
451 }
452 return 0;
453 }
454
455 static int simple_set_radio_freq(struct dvb_frontend *fe,
456 struct analog_parameters *params)
457 {
458 struct tunertype *tun;
459 struct tuner_simple_priv *priv = fe->tuner_priv;
460 u8 buffer[4];
461 u16 div;
462 int rc, j;
463 struct tuner_params *t_params;
464 unsigned int freq = params->frequency;
465
466 tun = priv->tun;
467
468 for (j = tun->count-1; j > 0; j--)
469 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
470 break;
471 /* default t_params (j=0) will be used if desired type wasn't found */
472 t_params = &tun->params[j];
473
474 /* Select Radio 1st IF used */
475 switch (t_params->radio_if) {
476 case 0: /* 10.7 MHz */
477 freq += (unsigned int)(10.7*16000);
478 break;
479 case 1: /* 33.3 MHz */
480 freq += (unsigned int)(33.3*16000);
481 break;
482 case 2: /* 41.3 MHz */
483 freq += (unsigned int)(41.3*16000);
484 break;
485 default:
486 tuner_warn("Unsupported radio_if value %d\n", t_params->radio_if);
487 return 0;
488 }
489
490 /* Bandswitch byte */
491 switch (priv->type) {
492 case TUNER_TENA_9533_DI:
493 case TUNER_YMEC_TVF_5533MF:
494 tuner_dbg("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n");
495 return 0;
496 case TUNER_PHILIPS_FM1216ME_MK3:
497 case TUNER_PHILIPS_FM1236_MK3:
498 case TUNER_PHILIPS_FMD1216ME_MK3:
499 case TUNER_LG_NTSC_TAPE:
500 case TUNER_PHILIPS_FM1256_IH3:
501 buffer[3] = 0x19;
502 break;
503 case TUNER_TNF_5335MF:
504 buffer[3] = 0x11;
505 break;
506 case TUNER_LG_PAL_FM:
507 buffer[3] = 0xa5;
508 break;
509 case TUNER_THOMSON_DTT761X:
510 buffer[3] = 0x39;
511 break;
512 case TUNER_MICROTUNE_4049FM5:
513 default:
514 buffer[3] = 0xa4;
515 break;
516 }
517
518 buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
519 TUNER_RATIO_SELECT_50; /* 50 kHz step */
520
521 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
522 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
523 freq * (1/800) */
524 div = (freq + 400) / 800;
525
526 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
527 buffer[0] = buffer[2];
528 buffer[1] = buffer[3];
529 buffer[2] = (div>>8) & 0x7f;
530 buffer[3] = div & 0xff;
531 } else {
532 buffer[0] = (div>>8) & 0x7f;
533 buffer[1] = div & 0xff;
534 }
535
536 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
537 buffer[0],buffer[1],buffer[2],buffer[3]);
538 priv->last_div = div;
539
540 if (t_params->has_tda9887) {
541 int config = 0;
542 struct v4l2_priv_tun_config tda9887_cfg;
543
544 tda9887_cfg.tuner = TUNER_TDA9887;
545 tda9887_cfg.priv = &config;
546
547 if (t_params->port1_active && !t_params->port1_fm_high_sensitivity)
548 config |= TDA9887_PORT1_ACTIVE;
549 if (t_params->port2_active && !t_params->port2_fm_high_sensitivity)
550 config |= TDA9887_PORT2_ACTIVE;
551 if (t_params->intercarrier_mode)
552 config |= TDA9887_INTERCARRIER;
553 /* if (t_params->port1_set_for_fm_mono)
554 config &= ~TDA9887_PORT1_ACTIVE;*/
555 if (t_params->fm_gain_normal)
556 config |= TDA9887_GAIN_NORMAL;
557 if (t_params->radio_if == 2)
558 config |= TDA9887_RIF_41_3;
559 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
560 &tda9887_cfg);
561 }
562 if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
563 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
564
565 return 0;
566 }
567
568 static int simple_set_params(struct dvb_frontend *fe,
569 struct analog_parameters *params)
570 {
571 struct tuner_simple_priv *priv = fe->tuner_priv;
572 int ret = -EINVAL;
573
574 switch (params->mode) {
575 case V4L2_TUNER_RADIO:
576 ret = simple_set_radio_freq(fe, params);
577 priv->frequency = params->frequency * 125 / 2;
578 break;
579 case V4L2_TUNER_ANALOG_TV:
580 case V4L2_TUNER_DIGITAL_TV:
581 ret = simple_set_tv_freq(fe, params);
582 priv->frequency = params->frequency * 62500;
583 break;
584 }
585
586 return ret;
587 }
588
589
590 static int simple_release(struct dvb_frontend *fe)
591 {
592 kfree(fe->tuner_priv);
593 fe->tuner_priv = NULL;
594
595 return 0;
596 }
597
598 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
599 {
600 struct tuner_simple_priv *priv = fe->tuner_priv;
601 *frequency = priv->frequency;
602 return 0;
603 }
604
605 static struct dvb_tuner_ops simple_tuner_ops = {
606 .set_analog_params = simple_set_params,
607 .release = simple_release,
608 .get_frequency = simple_get_frequency,
609 .get_status = simple_get_status,
610 .get_rf_strength = simple_get_rf_strength,
611 };
612
613 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
614 struct i2c_adapter *i2c_adap,
615 u8 i2c_addr,
616 struct simple_tuner_config *cfg)
617 {
618 struct tuner_simple_priv *priv = NULL;
619
620 priv = kzalloc(sizeof(struct tuner_simple_priv), GFP_KERNEL);
621 if (priv == NULL)
622 return NULL;
623 fe->tuner_priv = priv;
624
625 priv->i2c_props.addr = i2c_addr;
626 priv->i2c_props.adap = i2c_adap;
627 priv->type = cfg->type;
628 priv->tun = cfg->tun;
629
630 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops, sizeof(struct dvb_tuner_ops));
631
632 tuner_info("type set to %d (%s)\n", cfg->type, cfg->tun->name);
633
634 strlcpy(fe->ops.tuner_ops.info.name, cfg->tun->name, sizeof(fe->ops.tuner_ops.info.name));
635
636 return fe;
637 }
638
639
640 EXPORT_SYMBOL_GPL(simple_tuner_attach);
641
642 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
643 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
644 MODULE_LICENSE("GPL");
645
646 /*
647 * Overrides for Emacs so that we follow Linus's tabbing style.
648 * ---------------------------------------------------------------------------
649 * Local variables:
650 * c-basic-offset: 8
651 * End:
652 */
WRT350N Kernel Patches