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V4L/DVB (6715): ivtv: Remove unnecessary register update
[linux-2.6/verdex.git] / drivers / media / dvb / frontends / dvb-pll.c
blob8c8d7342d0b37254475d22a804e4680455d5be3a
1 /*
2 * descriptions + helper functions for simple dvb plls.
3 *
4 * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include <linux/module.h>
22 #include <linux/dvb/frontend.h>
23 #include <asm/types.h>
24
25 #include "dvb-pll.h"
26
27 struct dvb_pll_priv {
28 /* pll number */
29 int nr;
30
31 /* i2c details */
32 int pll_i2c_address;
33 struct i2c_adapter *i2c;
34
35 /* the PLL descriptor */
36 struct dvb_pll_desc *pll_desc;
37
38 /* cached frequency/bandwidth */
39 u32 frequency;
40 u32 bandwidth;
41 };
42
43 #define DVB_PLL_MAX 64
44
45 static unsigned int dvb_pll_devcount;
46
47 static int debug = 0;
48 module_param(debug, int, 0644);
49 MODULE_PARM_DESC(debug, "enable verbose debug messages");
50
51 static unsigned int input[DVB_PLL_MAX] = { [ 0 ... (DVB_PLL_MAX-1) ] = 0 };
52 module_param_array(input, int, NULL, 0644);
53 MODULE_PARM_DESC(input,"specify rf input choice, 0 for autoselect (default)");
54
55 static unsigned int id[DVB_PLL_MAX] =
56 { [ 0 ... (DVB_PLL_MAX-1) ] = DVB_PLL_UNDEFINED };
57 module_param_array(id, int, NULL, 0644);
58 MODULE_PARM_DESC(id, "force pll id to use (DEBUG ONLY)");
59
60 /* ----------------------------------------------------------- */
61
62 struct dvb_pll_desc {
63 char *name;
64 u32 min;
65 u32 max;
66 u32 iffreq;
67 void (*set)(struct dvb_frontend *fe, u8 *buf,
68 const struct dvb_frontend_parameters *params);
69 u8 *initdata;
70 u8 *sleepdata;
71 int count;
72 struct {
73 u32 limit;
74 u32 stepsize;
75 u8 config;
76 u8 cb;
77 } entries[12];
78 };
79
80 /* ----------------------------------------------------------- */
81 /* descriptions */
82
83 /* Set AGC TOP value to 103 dBuV:
84 0x80 = Control Byte
85 0x40 = 250 uA charge pump (irrelevant)
86 0x18 = Aux Byte to follow
87 0x06 = 64.5 kHz divider (irrelevant)
88 0x01 = Disable Vt (aka sleep)
89
90 0x00 = AGC Time constant 2s Iagc = 300 nA (vs 0x80 = 9 nA)
91 0x50 = AGC Take over point = 103 dBuV */
92 static u8 tua603x_agc103[] = { 2, 0x80|0x40|0x18|0x06|0x01, 0x00|0x50 };
93
94 /* 0x04 = 166.67 kHz divider
95
96 0x80 = AGC Time constant 50ms Iagc = 9 uA
97 0x20 = AGC Take over point = 112 dBuV */
98 static u8 tua603x_agc112[] = { 2, 0x80|0x40|0x18|0x04|0x01, 0x80|0x20 };
99
100 static struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
101 .name = "Thomson dtt7579",
102 .min = 177000000,
103 .max = 858000000,
104 .iffreq= 36166667,
105 .sleepdata = (u8[]){ 2, 0xb4, 0x03 },
106 .count = 4,
107 .entries = {
108 { 443250000, 166667, 0xb4, 0x02 },
109 { 542000000, 166667, 0xb4, 0x08 },
110 { 771000000, 166667, 0xbc, 0x08 },
111 { 999999999, 166667, 0xf4, 0x08 },
112 },
113 };
114
115 static struct dvb_pll_desc dvb_pll_thomson_dtt7610 = {
116 .name = "Thomson dtt7610",
117 .min = 44000000,
118 .max = 958000000,
119 .iffreq= 44000000,
120 .count = 3,
121 .entries = {
122 { 157250000, 62500, 0x8e, 0x39 },
123 { 454000000, 62500, 0x8e, 0x3a },
124 { 999999999, 62500, 0x8e, 0x3c },
125 },
126 };
127
128 static void thomson_dtt759x_bw(struct dvb_frontend *fe, u8 *buf,
129 const struct dvb_frontend_parameters *params)
130 {
131 if (BANDWIDTH_7_MHZ == params->u.ofdm.bandwidth)
132 buf[3] |= 0x10;
133 }
134
135 static struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
136 .name = "Thomson dtt759x",
137 .min = 177000000,
138 .max = 896000000,
139 .set = thomson_dtt759x_bw,
140 .iffreq= 36166667,
141 .sleepdata = (u8[]){ 2, 0x84, 0x03 },
142 .count = 5,
143 .entries = {
144 { 264000000, 166667, 0xb4, 0x02 },
145 { 470000000, 166667, 0xbc, 0x02 },
146 { 735000000, 166667, 0xbc, 0x08 },
147 { 835000000, 166667, 0xf4, 0x08 },
148 { 999999999, 166667, 0xfc, 0x08 },
149 },
150 };
151
152 static struct dvb_pll_desc dvb_pll_lg_z201 = {
153 .name = "LG z201",
154 .min = 174000000,
155 .max = 862000000,
156 .iffreq= 36166667,
157 .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
158 .count = 5,
159 .entries = {
160 { 157500000, 166667, 0xbc, 0x01 },
161 { 443250000, 166667, 0xbc, 0x02 },
162 { 542000000, 166667, 0xbc, 0x04 },
163 { 830000000, 166667, 0xf4, 0x04 },
164 { 999999999, 166667, 0xfc, 0x04 },
165 },
166 };
167
168 static struct dvb_pll_desc dvb_pll_microtune_4042 = {
169 .name = "Microtune 4042 FI5",
170 .min = 57000000,
171 .max = 858000000,
172 .iffreq= 44000000,
173 .count = 3,
174 .entries = {
175 { 162000000, 62500, 0x8e, 0xa1 },
176 { 457000000, 62500, 0x8e, 0x91 },
177 { 999999999, 62500, 0x8e, 0x31 },
178 },
179 };
180
181 static struct dvb_pll_desc dvb_pll_thomson_dtt761x = {
182 /* DTT 7611 7611A 7612 7613 7613A 7614 7615 7615A */
183 .name = "Thomson dtt761x",
184 .min = 57000000,
185 .max = 863000000,
186 .iffreq= 44000000,
187 .count = 3,
188 .initdata = tua603x_agc103,
189 .entries = {
190 { 147000000, 62500, 0x8e, 0x39 },
191 { 417000000, 62500, 0x8e, 0x3a },
192 { 999999999, 62500, 0x8e, 0x3c },
193 },
194 };
195
196 static struct dvb_pll_desc dvb_pll_unknown_1 = {
197 .name = "unknown 1", /* used by dntv live dvb-t */
198 .min = 174000000,
199 .max = 862000000,
200 .iffreq= 36166667,
201 .count = 9,
202 .entries = {
203 { 150000000, 166667, 0xb4, 0x01 },
204 { 173000000, 166667, 0xbc, 0x01 },
205 { 250000000, 166667, 0xb4, 0x02 },
206 { 400000000, 166667, 0xbc, 0x02 },
207 { 420000000, 166667, 0xf4, 0x02 },
208 { 470000000, 166667, 0xfc, 0x02 },
209 { 600000000, 166667, 0xbc, 0x08 },
210 { 730000000, 166667, 0xf4, 0x08 },
211 { 999999999, 166667, 0xfc, 0x08 },
212 },
213 };
214
215 /* Infineon TUA6010XS
216 * used in Thomson Cable Tuner
217 */
218 static struct dvb_pll_desc dvb_pll_tua6010xs = {
219 .name = "Infineon TUA6010XS",
220 .min = 44250000,
221 .max = 858000000,
222 .iffreq= 36125000,
223 .count = 3,
224 .entries = {
225 { 115750000, 62500, 0x8e, 0x03 },
226 { 403250000, 62500, 0x8e, 0x06 },
227 { 999999999, 62500, 0x8e, 0x85 },
228 },
229 };
230
231 /* Panasonic env57h1xd5 (some Philips PLL ?) */
232 static struct dvb_pll_desc dvb_pll_env57h1xd5 = {
233 .name = "Panasonic ENV57H1XD5",
234 .min = 44250000,
235 .max = 858000000,
236 .iffreq= 36125000,
237 .count = 4,
238 .entries = {
239 { 153000000, 166667, 0xc2, 0x41 },
240 { 470000000, 166667, 0xc2, 0x42 },
241 { 526000000, 166667, 0xc2, 0x84 },
242 { 999999999, 166667, 0xc2, 0xa4 },
243 },
244 };
245
246 /* Philips TDA6650/TDA6651
247 * used in Panasonic ENV77H11D5
248 */
249 static void tda665x_bw(struct dvb_frontend *fe, u8 *buf,
250 const struct dvb_frontend_parameters *params)
251 {
252 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
253 buf[3] |= 0x08;
254 }
255
256 static struct dvb_pll_desc dvb_pll_tda665x = {
257 .name = "Philips TDA6650/TDA6651",
258 .min = 44250000,
259 .max = 858000000,
260 .set = tda665x_bw,
261 .iffreq= 36166667,
262 .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
263 .count = 12,
264 .entries = {
265 { 93834000, 166667, 0xca, 0x61 /* 011 0 0 0 01 */ },
266 { 123834000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
267 { 161000000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
268 { 163834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
269 { 253834000, 166667, 0xca, 0x62 /* 011 0 0 0 10 */ },
270 { 383834000, 166667, 0xca, 0xa2 /* 101 0 0 0 10 */ },
271 { 443834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
272 { 444000000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ },
273 { 583834000, 166667, 0xca, 0x64 /* 011 0 0 1 00 */ },
274 { 793834000, 166667, 0xca, 0xa4 /* 101 0 0 1 00 */ },
275 { 444834000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ },
276 { 861000000, 166667, 0xca, 0xe4 /* 111 0 0 1 00 */ },
277 }
278 };
279
280 /* Infineon TUA6034
281 * used in LG TDTP E102P
282 */
283 static void tua6034_bw(struct dvb_frontend *fe, u8 *buf,
284 const struct dvb_frontend_parameters *params)
285 {
286 if (BANDWIDTH_7_MHZ != params->u.ofdm.bandwidth)
287 buf[3] |= 0x08;
288 }
289
290 static struct dvb_pll_desc dvb_pll_tua6034 = {
291 .name = "Infineon TUA6034",
292 .min = 44250000,
293 .max = 858000000,
294 .iffreq= 36166667,
295 .count = 3,
296 .set = tua6034_bw,
297 .entries = {
298 { 174500000, 62500, 0xce, 0x01 },
299 { 230000000, 62500, 0xce, 0x02 },
300 { 999999999, 62500, 0xce, 0x04 },
301 },
302 };
303
304 /* Infineon TUA6034
305 * used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F
306 */
307 static struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = {
308 .name = "LG TDVS-H06xF",
309 .min = 54000000,
310 .max = 863000000,
311 .iffreq= 44000000,
312 .initdata = tua603x_agc103,
313 .count = 3,
314 .entries = {
315 { 165000000, 62500, 0xce, 0x01 },
316 { 450000000, 62500, 0xce, 0x02 },
317 { 999999999, 62500, 0xce, 0x04 },
318 },
319 };
320
321 /* Philips FMD1216ME
322 * used in Medion Hybrid PCMCIA card and USB Box
323 */
324 static void fmd1216me_bw(struct dvb_frontend *fe, u8 *buf,
325 const struct dvb_frontend_parameters *params)
326 {
327 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
328 params->frequency >= 158870000)
329 buf[3] |= 0x08;
330 }
331
332 static struct dvb_pll_desc dvb_pll_fmd1216me = {
333 .name = "Philips FMD1216ME",
334 .min = 50870000,
335 .max = 858000000,
336 .iffreq= 36125000,
337 .set = fmd1216me_bw,
338 .initdata = tua603x_agc112,
339 .sleepdata = (u8[]){ 4, 0x9c, 0x60, 0x85, 0x54 },
340 .count = 7,
341 .entries = {
342 { 143870000, 166667, 0xbc, 0x41 },
343 { 158870000, 166667, 0xf4, 0x41 },
344 { 329870000, 166667, 0xbc, 0x42 },
345 { 441870000, 166667, 0xf4, 0x42 },
346 { 625870000, 166667, 0xbc, 0x44 },
347 { 803870000, 166667, 0xf4, 0x44 },
348 { 999999999, 166667, 0xfc, 0x44 },
349 }
350 };
351
352 /* ALPS TDED4
353 * used in Nebula-Cards and USB boxes
354 */
355 static void tded4_bw(struct dvb_frontend *fe, u8 *buf,
356 const struct dvb_frontend_parameters *params)
357 {
358 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
359 buf[3] |= 0x04;
360 }
361
362 static struct dvb_pll_desc dvb_pll_tded4 = {
363 .name = "ALPS TDED4",
364 .min = 47000000,
365 .max = 863000000,
366 .iffreq= 36166667,
367 .set = tded4_bw,
368 .count = 4,
369 .entries = {
370 { 153000000, 166667, 0x85, 0x01 },
371 { 470000000, 166667, 0x85, 0x02 },
372 { 823000000, 166667, 0x85, 0x08 },
373 { 999999999, 166667, 0x85, 0x88 },
374 }
375 };
376
377 /* ALPS TDHU2
378 * used in AverTVHD MCE A180
379 */
380 static struct dvb_pll_desc dvb_pll_tdhu2 = {
381 .name = "ALPS TDHU2",
382 .min = 54000000,
383 .max = 864000000,
384 .iffreq= 44000000,
385 .count = 4,
386 .entries = {
387 { 162000000, 62500, 0x85, 0x01 },
388 { 426000000, 62500, 0x85, 0x02 },
389 { 782000000, 62500, 0x85, 0x08 },
390 { 999999999, 62500, 0x85, 0x88 },
391 }
392 };
393
394 /* Philips TUV1236D
395 * used in ATI HDTV Wonder
396 */
397 static void tuv1236d_rf(struct dvb_frontend *fe, u8 *buf,
398 const struct dvb_frontend_parameters *params)
399 {
400 struct dvb_pll_priv *priv = fe->tuner_priv;
401 unsigned int new_rf = input[priv->nr];
402
403 if ((new_rf == 0) || (new_rf > 2)) {
404 switch (params->u.vsb.modulation) {
405 case QAM_64:
406 case QAM_256:
407 new_rf = 1;
408 break;
409 case VSB_8:
410 default:
411 new_rf = 2;
412 }
413 }
414
415 switch (new_rf) {
416 case 1:
417 buf[3] |= 0x08;
418 break;
419 case 2:
420 buf[3] &= ~0x08;
421 break;
422 default:
423 printk(KERN_WARNING
424 "%s: unhandled rf input selection: %d",
425 __FUNCTION__, new_rf);
426 }
427 }
428
429 static struct dvb_pll_desc dvb_pll_tuv1236d = {
430 .name = "Philips TUV1236D",
431 .min = 54000000,
432 .max = 864000000,
433 .iffreq= 44000000,
434 .set = tuv1236d_rf,
435 .count = 3,
436 .entries = {
437 { 157250000, 62500, 0xc6, 0x41 },
438 { 454000000, 62500, 0xc6, 0x42 },
439 { 999999999, 62500, 0xc6, 0x44 },
440 },
441 };
442
443 /* Samsung TBMV30111IN / TBMV30712IN1
444 * used in Air2PC ATSC - 2nd generation (nxt2002)
445 */
446 static struct dvb_pll_desc dvb_pll_samsung_tbmv = {
447 .name = "Samsung TBMV30111IN / TBMV30712IN1",
448 .min = 54000000,
449 .max = 860000000,
450 .iffreq= 44000000,
451 .count = 6,
452 .entries = {
453 { 172000000, 166667, 0xb4, 0x01 },
454 { 214000000, 166667, 0xb4, 0x02 },
455 { 467000000, 166667, 0xbc, 0x02 },
456 { 721000000, 166667, 0xbc, 0x08 },
457 { 841000000, 166667, 0xf4, 0x08 },
458 { 999999999, 166667, 0xfc, 0x02 },
459 }
460 };
461
462 /*
463 * Philips SD1878 Tuner.
464 */
465 static struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
466 .name = "Philips SD1878",
467 .min = 950000,
468 .max = 2150000,
469 .iffreq= 249, /* zero-IF, offset 249 is to round up */
470 .count = 4,
471 .entries = {
472 { 1250000, 500, 0xc4, 0x00},
473 { 1550000, 500, 0xc4, 0x40},
474 { 2050000, 500, 0xc4, 0x80},
475 { 2150000, 500, 0xc4, 0xc0},
476 },
477 };
478
479 /*
480 * Philips TD1316 Tuner.
481 */
482 static void td1316_bw(struct dvb_frontend *fe, u8 *buf,
483 const struct dvb_frontend_parameters *params)
484 {
485 u8 band;
486
487 /* determine band */
488 if (params->frequency < 161000000)
489 band = 1;
490 else if (params->frequency < 444000000)
491 band = 2;
492 else
493 band = 4;
494
495 buf[3] |= band;
496
497 /* setup PLL filter */
498 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
499 buf[3] |= 1 << 3;
500 }
501
502 static struct dvb_pll_desc dvb_pll_philips_td1316 = {
503 .name = "Philips TD1316",
504 .min = 87000000,
505 .max = 895000000,
506 .iffreq= 36166667,
507 .set = td1316_bw,
508 .count = 9,
509 .entries = {
510 { 93834000, 166667, 0xca, 0x60},
511 { 123834000, 166667, 0xca, 0xa0},
512 { 163834000, 166667, 0xca, 0xc0},
513 { 253834000, 166667, 0xca, 0x60},
514 { 383834000, 166667, 0xca, 0xa0},
515 { 443834000, 166667, 0xca, 0xc0},
516 { 583834000, 166667, 0xca, 0x60},
517 { 793834000, 166667, 0xca, 0xa0},
518 { 858834000, 166667, 0xca, 0xe0},
519 },
520 };
521
522 /* FE6600 used on DViCO Hybrid */
523 static struct dvb_pll_desc dvb_pll_thomson_fe6600 = {
524 .name = "Thomson FE6600",
525 .min = 44250000,
526 .max = 858000000,
527 .iffreq= 36125000,
528 .count = 4,
529 .entries = {
530 { 250000000, 166667, 0xb4, 0x12 },
531 { 455000000, 166667, 0xfe, 0x11 },
532 { 775500000, 166667, 0xbc, 0x18 },
533 { 999999999, 166667, 0xf4, 0x18 },
534 }
535 };
536
537 static void opera1_bw(struct dvb_frontend *fe, u8 *buf,
538 const struct dvb_frontend_parameters *params)
539 {
540 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
541 buf[2] |= 0x08;
542 }
543
544 static struct dvb_pll_desc dvb_pll_opera1 = {
545 .name = "Opera Tuner",
546 .min = 900000,
547 .max = 2250000,
548 .iffreq= 0,
549 .set = opera1_bw,
550 .count = 8,
551 .entries = {
552 { 1064000, 500, 0xe5, 0xc6 },
553 { 1169000, 500, 0xe5, 0xe6 },
554 { 1299000, 500, 0xe5, 0x24 },
555 { 1444000, 500, 0xe5, 0x44 },
556 { 1606000, 500, 0xe5, 0x64 },
557 { 1777000, 500, 0xe5, 0x84 },
558 { 1941000, 500, 0xe5, 0xa4 },
559 { 2250000, 500, 0xe5, 0xc4 },
560 }
561 };
562
563 /* Philips FCV1236D
564 */
565 static struct dvb_pll_desc dvb_pll_fcv1236d = {
566 /* Bit_0: RF Input select
567 * Bit_1: 0=digital, 1=analog
568 */
569 .name = "Philips FCV1236D",
570 .min = 53000000,
571 .max = 803000000,
572 .iffreq= 44000000,
573 .count = 3,
574 .entries = {
575 { 159000000, 62500, 0x8e, 0xa0 },
576 { 453000000, 62500, 0x8e, 0x90 },
577 { 999999999, 62500, 0x8e, 0x30 },
578 },
579 };
580
581 /* ----------------------------------------------------------- */
582
583 static struct dvb_pll_desc *pll_list[] = {
584 [DVB_PLL_UNDEFINED] = NULL,
585 [DVB_PLL_THOMSON_DTT7579] = &dvb_pll_thomson_dtt7579,
586 [DVB_PLL_THOMSON_DTT759X] = &dvb_pll_thomson_dtt759x,
587 [DVB_PLL_THOMSON_DTT7610] = &dvb_pll_thomson_dtt7610,
588 [DVB_PLL_LG_Z201] = &dvb_pll_lg_z201,
589 [DVB_PLL_MICROTUNE_4042] = &dvb_pll_microtune_4042,
590 [DVB_PLL_THOMSON_DTT761X] = &dvb_pll_thomson_dtt761x,
591 [DVB_PLL_UNKNOWN_1] = &dvb_pll_unknown_1,
592 [DVB_PLL_TUA6010XS] = &dvb_pll_tua6010xs,
593 [DVB_PLL_ENV57H1XD5] = &dvb_pll_env57h1xd5,
594 [DVB_PLL_TUA6034] = &dvb_pll_tua6034,
595 [DVB_PLL_LG_TDVS_H06XF] = &dvb_pll_lg_tdvs_h06xf,
596 [DVB_PLL_TDA665X] = &dvb_pll_tda665x,
597 [DVB_PLL_FMD1216ME] = &dvb_pll_fmd1216me,
598 [DVB_PLL_TDED4] = &dvb_pll_tded4,
599 [DVB_PLL_TUV1236D] = &dvb_pll_tuv1236d,
600 [DVB_PLL_TDHU2] = &dvb_pll_tdhu2,
601 [DVB_PLL_SAMSUNG_TBMV] = &dvb_pll_samsung_tbmv,
602 [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261,
603 [DVB_PLL_PHILIPS_TD1316] = &dvb_pll_philips_td1316,
604 [DVB_PLL_THOMSON_FE6600] = &dvb_pll_thomson_fe6600,
605 [DVB_PLL_OPERA1] = &dvb_pll_opera1,
606 [DVB_PLL_FCV1236D] = &dvb_pll_fcv1236d,
607 };
608
609 /* ----------------------------------------------------------- */
610 /* code */
611
612 static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf,
613 const struct dvb_frontend_parameters *params)
614 {
615 struct dvb_pll_priv *priv = fe->tuner_priv;
616 struct dvb_pll_desc *desc = priv->pll_desc;
617 u32 div;
618 int i;
619
620 if (params->frequency != 0 && (params->frequency < desc->min ||
621 params->frequency > desc->max))
622 return -EINVAL;
623
624 for (i = 0; i < desc->count; i++) {
625 if (params->frequency > desc->entries[i].limit)
626 continue;
627 break;
628 }
629
630 if (debug)
631 printk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
632 params->frequency, i, desc->count);
633 if (i == desc->count)
634 return -EINVAL;
635
636 div = (params->frequency + desc->iffreq +
637 desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
638 buf[0] = div >> 8;
639 buf[1] = div & 0xff;
640 buf[2] = desc->entries[i].config;
641 buf[3] = desc->entries[i].cb;
642
643 if (desc->set)
644 desc->set(fe, buf, params);
645
646 if (debug)
647 printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
648 desc->name, div, buf[0], buf[1], buf[2], buf[3]);
649
650 // calculate the frequency we set it to
651 return (div * desc->entries[i].stepsize) - desc->iffreq;
652 }
653
654 static int dvb_pll_release(struct dvb_frontend *fe)
655 {
656 kfree(fe->tuner_priv);
657 fe->tuner_priv = NULL;
658 return 0;
659 }
660
661 static int dvb_pll_sleep(struct dvb_frontend *fe)
662 {
663 struct dvb_pll_priv *priv = fe->tuner_priv;
664
665 if (priv->i2c == NULL)
666 return -EINVAL;
667
668 if (priv->pll_desc->sleepdata) {
669 struct i2c_msg msg = { .flags = 0,
670 .addr = priv->pll_i2c_address,
671 .buf = priv->pll_desc->sleepdata + 1,
672 .len = priv->pll_desc->sleepdata[0] };
673
674 int result;
675
676 if (fe->ops.i2c_gate_ctrl)
677 fe->ops.i2c_gate_ctrl(fe, 1);
678 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
679 return result;
680 }
681 return 0;
682 }
683 /* Shouldn't be called when initdata is NULL, maybe BUG()? */
684 return -EINVAL;
685 }
686
687 static int dvb_pll_set_params(struct dvb_frontend *fe,
688 struct dvb_frontend_parameters *params)
689 {
690 struct dvb_pll_priv *priv = fe->tuner_priv;
691 u8 buf[4];
692 struct i2c_msg msg =
693 { .addr = priv->pll_i2c_address, .flags = 0,
694 .buf = buf, .len = sizeof(buf) };
695 int result;
696 u32 frequency = 0;
697
698 if (priv->i2c == NULL)
699 return -EINVAL;
700
701 if ((result = dvb_pll_configure(fe, buf, params)) < 0)
702 return result;
703 else
704 frequency = result;
705
706 if (fe->ops.i2c_gate_ctrl)
707 fe->ops.i2c_gate_ctrl(fe, 1);
708 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
709 return result;
710 }
711
712 priv->frequency = frequency;
713 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
714
715 return 0;
716 }
717
718 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
719 struct dvb_frontend_parameters *params,
720 u8 *buf, int buf_len)
721 {
722 struct dvb_pll_priv *priv = fe->tuner_priv;
723 int result;
724 u32 frequency = 0;
725
726 if (buf_len < 5)
727 return -EINVAL;
728
729 if ((result = dvb_pll_configure(fe, buf+1, params)) < 0)
730 return result;
731 else
732 frequency = result;
733
734 buf[0] = priv->pll_i2c_address;
735
736 priv->frequency = frequency;
737 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
738
739 return 5;
740 }
741
742 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
743 {
744 struct dvb_pll_priv *priv = fe->tuner_priv;
745 *frequency = priv->frequency;
746 return 0;
747 }
748
749 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
750 {
751 struct dvb_pll_priv *priv = fe->tuner_priv;
752 *bandwidth = priv->bandwidth;
753 return 0;
754 }
755
756 static int dvb_pll_init(struct dvb_frontend *fe)
757 {
758 struct dvb_pll_priv *priv = fe->tuner_priv;
759
760 if (priv->i2c == NULL)
761 return -EINVAL;
762
763 if (priv->pll_desc->initdata) {
764 struct i2c_msg msg = { .flags = 0,
765 .addr = priv->pll_i2c_address,
766 .buf = priv->pll_desc->initdata + 1,
767 .len = priv->pll_desc->initdata[0] };
768
769 int result;
770 if (fe->ops.i2c_gate_ctrl)
771 fe->ops.i2c_gate_ctrl(fe, 1);
772 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
773 return result;
774 }
775 return 0;
776 }
777 /* Shouldn't be called when initdata is NULL, maybe BUG()? */
778 return -EINVAL;
779 }
780
781 static struct dvb_tuner_ops dvb_pll_tuner_ops = {
782 .release = dvb_pll_release,
783 .sleep = dvb_pll_sleep,
784 .init = dvb_pll_init,
785 .set_params = dvb_pll_set_params,
786 .calc_regs = dvb_pll_calc_regs,
787 .get_frequency = dvb_pll_get_frequency,
788 .get_bandwidth = dvb_pll_get_bandwidth,
789 };
790
791 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
792 struct i2c_adapter *i2c,
793 unsigned int pll_desc_id)
794 {
795 u8 b1 [] = { 0 };
796 struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
797 .buf = b1, .len = 1 };
798 struct dvb_pll_priv *priv = NULL;
799 int ret;
800 struct dvb_pll_desc *desc;
801
802 if ((id[dvb_pll_devcount] > DVB_PLL_UNDEFINED) &&
803 (id[dvb_pll_devcount] < ARRAY_SIZE(pll_list)))
804 pll_desc_id = id[dvb_pll_devcount];
805
806 BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list));
807
808 desc = pll_list[pll_desc_id];
809
810 if (i2c != NULL) {
811 if (fe->ops.i2c_gate_ctrl)
812 fe->ops.i2c_gate_ctrl(fe, 1);
813
814 ret = i2c_transfer (i2c, &msg, 1);
815 if (ret != 1)
816 return NULL;
817 if (fe->ops.i2c_gate_ctrl)
818 fe->ops.i2c_gate_ctrl(fe, 0);
819 }
820
821 priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
822 if (priv == NULL)
823 return NULL;
824
825 priv->pll_i2c_address = pll_addr;
826 priv->i2c = i2c;
827 priv->pll_desc = desc;
828 priv->nr = dvb_pll_devcount++;
829
830 memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
831 sizeof(struct dvb_tuner_ops));
832
833 strncpy(fe->ops.tuner_ops.info.name, desc->name,
834 sizeof(fe->ops.tuner_ops.info.name));
835 fe->ops.tuner_ops.info.frequency_min = desc->min;
836 fe->ops.tuner_ops.info.frequency_max = desc->max;
837 if (!desc->initdata)
838 fe->ops.tuner_ops.init = NULL;
839 if (!desc->sleepdata)
840 fe->ops.tuner_ops.sleep = NULL;
841
842 fe->tuner_priv = priv;
843
844 if ((debug) || (id[priv->nr] == pll_desc_id)) {
845 printk("dvb-pll[%d]", priv->nr);
846 if (i2c != NULL)
847 printk(" %d-%04x", i2c_adapter_id(i2c), pll_addr);
848 printk(": id# %d (%s) attached, %s\n", pll_desc_id, desc->name,
849 id[priv->nr] == pll_desc_id ?
850 "insmod option" : "autodetected");
851 }
852 if ((debug) || (input[priv->nr] > 0)) {
853 printk("dvb-pll[%d]", priv->nr);
854 if (i2c != NULL)
855 printk(" %d-%04x", i2c_adapter_id(i2c), pll_addr);
856 printk(": tuner rf input will be ");
857 switch (input[priv->nr]) {
858 case 0:
859 printk("autoselected\n");
860 break;
861 default:
862 printk("set to input %d (insmod option)\n",
863 input[priv->nr]);
864 }
865 }
866
867 return fe;
868 }
869 EXPORT_SYMBOL(dvb_pll_attach);
870
871 MODULE_DESCRIPTION("dvb pll library");
872 MODULE_AUTHOR("Gerd Knorr");
873 MODULE_LICENSE("GPL");
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